Intermediate conversion device for grounding connection of transformer substation
By designing an intermediate conversion device for substations, the threaded connection between the conductive screw and the screw groove and other structural elements are used to solve the problem of mismatch between the ground wire and the ground pile, and the convenience and stability of grounding operation are achieved.
Patent Information
- Application Number
- CN202311204862.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-19
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The grounding wires and grounding piles of grounding devices in existing substations have diverse structural models, which leads to the problem of mismatch between the grounding wires and grounding piles, resulting in inconvenient operation.
An intermediate conversion device for grounding connection of substations is designed, including grounding piles, grounding wires, connecting blocks and locking screws. The conductive screws are threaded to the screw grooves, combined with the structure of the locking grooves, connecting holes, locking screws, locking nuts and locking blocks, and the stable connection between the grounding wires and grounding piles is achieved.
It solves the problem that the grounding wire cannot be matched due to the different grounding pile structure models in grounding operation, realizes the convenience and stability of operation, and avoids the problem of loose thread connections.
Smart Images
Figure CN119627470A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of electric power grounding, and in particular relates to an intermediate conversion device for grounding connection of a transformer substation. Background Art
[0002] In power grid projects, grounding is a power safety measure taken to ensure the normal operation of electrical equipment and personal safety. It is achieved by a grounding device. When in use, the grounding device can lead the leakage current, static current, and lightning current that may be generated on the power equipment into the ground, thereby avoiding personal electric shock and possible fires, explosions and other accidents; however, there are many types of structures of grounding wires and grounding piles of grounding devices in existing substations. Due to the existence of multiple models, the grounding end of the grounding wire and the grounding pile often do not match, which causes great inconvenience to the grounding operation of the operator; therefore, in order to solve the above problems, it is necessary to develop an intermediate conversion device for substation grounding connection with good usability and convenient and fast connection operation. Summary of the invention
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an intermediate conversion device for substation grounding connection which has good usability and convenient and fast connection operation.
[0004] The objective of the present invention is achieved as follows: an intermediate conversion device for grounding connection of a substation, comprising a grounding pile, a grounding wire, a connecting block and a locking screw, wherein the lower end of the grounding pile is pre-buried below the ground, and a conductive screw is vertically fixedly arranged on the upper end, and the connecting block is cylindrical as a whole, and a screw groove matching the conductive screw structure is vertically arranged at the center of its lower surface, and clamping grooves are arranged on both sides of the upper end, and a connecting hole is horizontally arranged at the center of the bottom surface of the two clamping grooves; a conductive plate is fixedly arranged at the lower end of the grounding wire, and the locking screw is horizontally penetrated into the connecting hole, and a locking block is concentrically fixedly arranged on the left end thereof, and a locking nut is arranged on the external detachable threaded rotating sleeve at the right end, and the locking block is located at the rear end of the conductive plate, and a limiting connection between the locking block and the conductive plate is achieved by a fixing bolt.
[0005] The upper end of the conductive screw is provided with a clamping hole a, the middle part of the connecting block is provided with a clamping hole b, the clamping hole b and the screw groove are communicated with each other, and a connecting clamp is slidably penetrated inside the clamping block b and the clamping hole a.
[0006] An elastic washer is arranged between the locking nut and the bottom surface of the groove of the right side slot at the upper end of the connecting block, and the elastic washer is sleeved on the outside of the locking screw.
[0007] One end of the locking screw away from the locking block is fixedly connected with a baffle, a limiting hole is arranged at the center of the baffle, and a limiting lock body is detachably hung in the limiting hole.
[0008] The locking nut is a butterfly nut structure.
[0009] The beneficial effects of the present invention: the present invention provides a conductive screw and a screw groove, and utilizes the threaded connection between the conductive screw and the screw groove to achieve a limited connection between the connecting block and the grounding pile. By providing a slot, a connecting hole, a locking screw, a locking nut and a locking block, when in use, the locking screw is first inserted into the connecting hole, and then the locking nut is rotatably sleeved on the outside of the locking screw, so that the limited connection between the locking block, the locking screw and the connecting block is achieved through the cooperation of the locking nut and the locking block, and then the connection between the grounding wire and the grounding pile is achieved, and the grounding operation is completed. The present invention adopts this structure to solve the problem of the grounding pile being deformed due to the structure of the grounding pile during the grounding operation. The problem of being unable to match the grounding wire due to the different structural models; by setting the baffle and the limit lock body, the limit lock body can be used to block and limit the locking nut, thereby preventing the locking nut from being disconnected from the locking screw; by setting the card hole a, the card hole b and the connecting card, when in use, the connecting card is used to pass through the card hole b and the card hole a in sequence, thereby realizing the limited connection between the conductive screw and the connecting block. By adopting this structure, the stability of the connection between the conductive screw and the connecting block can be increased, and the problem of loosening of the threaded connection between them during long-term use can be avoided; in general, the present invention has the advantages of good applicability and convenient and quick connection operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a front view of the present invention.
[0011] Figure 2 It is a side view of the connection between the connecting block and the conductive screw in the present invention.
[0012] Figure 3 It is a cross-sectional view of a side view of the connection between the connecting block and the conductive screw in the present invention.
[0013] In the figure: 1, grounding pile 11, conductive screw 12, clamping hole a 2, grounding wire 21, conductive plate 3, connecting block 31, screw groove 32, clamping groove 33, connecting hole 34, clamping hole b 4, locking screw 41, locking nut 42, elastic washer 43, baffle 5, locking block 51, fixing bolt 6, connecting clamp. Implementation
[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Example: Figure 1 , Figure 2 , Figure 3As shown, an intermediate conversion device for grounding connection of a substation comprises a grounding pile 1, a grounding wire 2, a connecting block 3 and a locking screw 4. The lower end of the grounding pile 1 is pre-buried below the ground, and a conductive screw 11 is vertically fixedly arranged on the upper end. The connecting block 3 is cylindrical as a whole, and a screw groove 31 which matches the conductive screw 11 structure is vertically arranged at the center of its lower surface, and a clamping groove 32 is arranged on both sides of the upper end, and a connecting hole 33 is horizontally arranged at the center of the bottom surface of the two clamping grooves 32; a conductive plate 21 is fixedly arranged at the lower end of the grounding wire 2, and the locking screw 4 is horizontally penetrated in the connecting hole 33, and a locking block 5 is concentrically fixedly arranged on the left end thereof, and a locking nut 41 is arranged on the external detachable threaded rotating sleeve of the right end, and the locking block 5 is located at the rear end of the conductive plate 21, and is limitedly connected to the conductive plate 21 by a fixing bolt 51.
[0016] The upper end of the conductive screw 11 is provided with a clamping hole a12, and the middle part of the connecting block 3 is provided with a clamping hole b34, the clamping hole b34 and the screw groove 31 are communicated with each other, and a connecting clamp 6 is slidably penetrated inside the clamping block b34 and the clamping hole a12, and the connecting clamp 6 is used to cooperate with the clamping hole b34 and the clamping hole a12 to achieve a limited connection between the conductive screw 11 and the connecting block 3, thereby improving the stability of the connection between the conductive screw 11 and the connecting block 3, and avoiding the problem of loosening of the threaded connection therebetween during long-term use; An elastic washer 42 is arranged between the locking nut 41 and the bottom surface of the groove 32 on the right side of the upper end of the connecting block 3, and the elastic washer 42 is sleeved on the outside of the locking screw 4; the locking screw 4 is fixedly connected to the end away from the locking block 5 with a baffle 43, a limiting hole is arranged at the center of the baffle 43, and a limiting lock body is detachably hung in the limiting hole; the limiting lock body can be used to block and limit the locking nut 41, so as to avoid the problem of disconnection between the locking nut 41 and the locking screw 4; the locking nut 41 is a butterfly nut structure.
[0017] When the present invention is used, first, the threaded connection between the conductive screw 11 and the screw groove 31 is utilized to rotate the connecting block 3, thereby realizing the limited sleeve connection between the connecting block 3 and the conductive screw 11. In this process, as the connecting block 3 rotates, it can realize vertical movement along the length direction of the conductive screw 11. When the clamping hole b34 on the connecting block 3 and the clamping hole a12 on the conductive screw 11 are in a concentric state, the connecting block 3 is stopped from rotating, and the connecting clamp 6 is sequentially inserted through the clamping hole b34 and the clamping hole a12. At this time, the connecting clamp 6 is connected with the clamping hole b34 and the clamping hole a12 to realize the limited connection between the conductive screw 11 and the connecting block 3, thereby improving the stability of the connection between the conductive screw 11 and the connecting block 3, and avoiding the problem of loosening of the threaded connection therebetween during long-term use; thereafter, the fixing bolt 5 is used to fix the conductive screw 11 and the connecting block 3. 1 realizes the limiting connection between the conductive plate 21 and the locking block 5. Finally, the locking screw 4 is inserted into the connecting hole 33, and the locking nut 41 is rotatably sleeved on the outside of the locking screw 4, so that the locking block 5, the locking screw 4 and the connecting block 3 are limited by the cooperation of the locking nut 41 and the locking block 5, and then the connection between the grounding wire 2 and the grounding pile 1 is realized to complete the grounding operation. The present invention adopts this structure to solve the problem that the grounding pile 1 cannot match the grounding wire 2 due to the different structural models during the grounding operation; after completing the above operation, the limiting lock body is hung in the limiting hole at the center of the baffle 43, so that the limiting lock body is used to block and limit the locking nut 41, so as to avoid the problem of disconnection between the locking nut 41 and the locking screw 4; in general, the present invention has the advantages of good applicability and convenient and fast connection operation.
[0018] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. An intermediate conversion device for grounding connection of a substation, comprising a grounding pile (1), a grounding wire (2), a connection block (3) and a locking screw (4), characterized in that: The lower end of the grounding pile (1) is pre-buried below the ground, and a conductive screw (11) is vertically fixedly arranged at the upper end. The connecting block (3) is cylindrical in shape as a whole, and a screw groove (31) is vertically arranged at the center of the lower surface thereof, which is matched with the conductive screw (11) structure. Both sides of the upper end are provided with clamping grooves (32), and the centers of the bottom surfaces of the two clamping grooves (32) are transversely provided with connecting holes (33); the lower end of the grounding wire (2) is fixedly provided with a conductive plate (21), and the locking screw (4) is transversely inserted into the connecting hole (33). A locking block (5) is concentrically fixedly arranged at the left end thereof, and a locking nut (41) is arranged on the external detachable threaded rotating sleeve at the right end. The locking block (5) is located at the rear end of the conductive plate (21) and is limitedly connected to the conductive plate (21) by a fixing bolt (51).
2. An intermediate conversion device for grounding connection of a substation according to claim 1, characterized in that: The upper end of the conductive screw (11) is provided with a clamping hole a (12), the middle part of the connecting block (3) is provided with a clamping hole b (34), the clamping hole b (34) and the screw groove (31) are communicated with each other, and a connecting clamp (6) is slidably penetrated inside the clamping block b (34) and the clamping hole a (12).
3. An intermediate conversion device for grounding connection of a substation according to claim 1, characterized in that: An elastic washer (42) is provided between the locking nut (41) and the bottom surface of the slot (32) on the right side of the upper end of the connecting block (3), and the elastic washer (42) is sleeved on the outside of the locking screw (4).
4. The intermediate conversion device for grounding connection of a substation according to claim 1, characterized in that: One end of the locking screw (4) away from the locking block (5) is fixedly connected to a baffle (43), a limiting hole is provided at the center of the baffle (43), and a limiting lock body is detachably hung in the limiting hole.
5. The intermediate conversion device for grounding connection of a substation according to claim 1, characterized in that: The locking nut (41) is a butterfly nut structure.