Grounding pile

Abstract

The present invention discloses a grounding pile, including: a base, a self-resetting switch, a mounting structure and a trigger mechanism. The base is used to electrically connect the grounding lock to the earth. The mounting structure is arranged on the base, and is used to connect the base and the grounding lock. The trigger mechanism is arranged in the base, and is used to detect whether the grounding lock is assembled on the mounting structure. The self-resetting switch is connected to the trigger mechanism, and is used to receive the trigger signal of the trigger mechanism, and convert the trigger signal into an electrical signal output. According to the grounding pile of the above technical solution, the trigger mechanism detects whether the grounding lock is connected to the grounding pile, and triggers the self-resetting switch arranged in the grounding pile to act, and transmits the switch signal, which can feedback the grounding status in real time, and can be linked with other devices to achieve safer control.

Description

Technical Field

[0001] The invention relates to the field of power distribution equipment, and in particular to a grounding pile. Background Art

[0002] When inspecting and repairing high-voltage equipment such as switches, circuit breakers, and CTs in substations, reliable grounding is required on both sides of the corresponding intervals to ensure the safety of equipment and personnel. The grounding system is usually achieved by connecting grounding locks, wires, and grounding piles.

[0003] The current grounding piles are limited to the grounding function and cannot provide feedback on whether the grounding is good or not. They cannot be linked with other equipment and instruments, electronic fences, five-defense systems, etc. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a grounding pile that can output a switch signal to reflect the grounding state and can be linked with other devices.

[0005] According to the first aspect of the present invention, the grounding pile of the embodiment includes a base for electrically connecting the grounding lock to the earth; a mounting structure, arranged on the base, for connecting the base and the grounding lock; a trigger mechanism, arranged in the base, for detecting whether the grounding lock is assembled on the mounting structure; a self-resetting switch, connected to the trigger mechanism, for receiving a trigger signal of the trigger mechanism and converting the trigger signal into an electrical signal output.

[0006] The grounding pile according to the embodiment of the present invention has at least the following beneficial effects: when the grounding lock is inserted into the installation structure, the trigger mechanism detects the insertion of the grounding lock and triggers the self-resetting switch, and the self-resetting switch converts the action trigger signal of the trigger mechanism into an electrical signal and sends it to the outside; when the grounding lock leaves the installation structure, the trigger mechanism cannot detect the grounding lock and recovers, and the self-resetting switch also resets itself and returns to the initial state. The above method can realize the grounding state in the form of a switch signal, and the switch signal can be connected to other devices to realize linkage, so as to achieve safer control.

[0007] According to some embodiments of the present invention, the trigger mechanism includes a pin and an elastic device, one end of the pin contacts the button of the self-resetting switch, the other end of the pin extends into the elastic device, and one end of the elastic device facing away from the pin extends into the mounting structure.

[0008] According to some embodiments of the present invention, the elastic device includes a top ball, a spring and a cylinder body, the top ball is arranged at one end of the cylinder body, and the other end of the cylinder body is provided with an opening for passing the top pin, the top pin can contact the top ball through the opening, a partial spherical surface of the top ball is exposed in the cylinder body, the spring is arranged in the cylinder body, one end of the spring is in contact with the cylinder body, and the other end of the spring is in contact with the surface of the top ball.

[0009] According to some embodiments of the present invention, the ejector pin is a truncated cone structure.

[0010] According to some embodiments of the present invention, the mounting structure includes a stud and a nut, the stud is a "T"-shaped hollow cylinder with a boss at one end, the cylinder has an external thread, the nut has an internal thread matching the external thread, the cylinder is provided with a first through hole for extending into the trigger mechanism, the base is provided with a second through hole, the stud is inserted into the second through hole, and the nut is sleeved on the end of the stud facing away from the boss.

[0011] According to some embodiments of the present invention, the boss is a regular polygonal prism.

[0012] According to some embodiments of the present invention, the base includes a horizontal plate, a fixed block and an end cover, the fixed block is upright on the horizontal plate, the end cover is arranged at the other end of the fixed block, the mounting structure and the trigger mechanism are arranged in the fixed block, and the self-resetting switch is arranged in the end cover.

[0013] According to some embodiments of the present invention, an aviation socket is further included in the base, and the self-resetting switch is electrically connected to the outside through the aviation socket.

[0014] According to some embodiments of the present invention, the aviation socket is disposed on the end cover, and an internal thread is provided in the aviation socket.

[0015] According to some embodiments of the present invention, a waterproof groove is provided at one end of the fixing block connected to the end cover, and an O-ring is provided in the waterproof groove.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 is a main cross-sectional view of an embodiment of the present invention;

[0020] Figure 3 It is a side sectional view of an embodiment of the present invention.

[0021] Reference numerals:

[0022] Base 100, horizontal plate 110, fixing block 120, end cover 130,

[0023] Self-resetting switch 200,

[0024] Mounting structure 300, stud 310, nut 320,

[0025] Trigger mechanism 400, elastic device 410, cylinder 411, spring 412, ejector ball 413, ejector pin 420,

[0026] Aviation socket 500. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figure 1 and Figure 2According to an embodiment of the present invention, the grounding pile includes a base 100, a self-resetting switch 200, a mounting structure 300 and a trigger mechanism 400. The mounting structure 300 is penetrated through the base 100, and the self-resetting switch 200 is arranged inside the base 100. One end of the trigger mechanism 400 extends into the mounting structure 300, and the other end of the trigger mechanism 400 abuts against the self-resetting switch 200. When the grounding lock is inserted into the mounting structure 300, the grounding lock contacts the end of the trigger mechanism 400 extending into the mounting structure 300 and applies force to the self-resetting switch 200 through the trigger mechanism 400. The self-resetting switch 200 detects the action trigger signal of the trigger mechanism 400, and converts the trigger signal into an electrical signal and outputs it to the outside. When the grounding lock leaves the mounting structure 300, the grounding lock separates from the trigger mechanism 400, the trigger mechanism 400 returns to its original state, the force on the self-resetting switch 200 disappears, and the self-resetting switch 200 resets itself and outputs a signal of recovery to the outside. Through the above scheme, the grounding state can be reflected by the switch signal, and the switch signal can be transmitted to other devices for linkage. It can be understood that the self-resetting switch 200 can be a self-resetting button switch, or a travel switch or a touch switch.

[0032] In a further embodiment, the trigger mechanism 400 includes a pin 420 and an elastic device 410. One end of the elastic device 410 extends into the mounting structure 300, and one end of the pin 420 extends into the other end of the elastic device 410, and the other end of the pin 420 abuts against the self-resetting switch 200. When the grounding lock is inserted into the mounting structure 300, the grounding lock squeezes the elastic device 410 to make it move, and the movement is transmitted to the pin 420, and then transmitted to the self-resetting switch 200 through the pin 420. After the grounding lock leaves the mounting structure 300, the elastic device 410 recovers under the action of the internal elastic force, and the self-resetting switch 200 also resets itself. In some embodiments, the elastic device 410 includes a cylinder 411, a spring 412 and a ball 413, and the ball 413 is embedded in one end of the cylinder 411, and a portion of the ball 413 is exposed from the cylinder 411. It is understandable that, in order to prevent the top ball 413 from coming out of the cylinder body 411, the surface area of ​​the top ball 413 exposed in the cylinder body 411 is less than half of the total surface area of ​​the top ball 413. The spring 412 is arranged in the cylinder body 411, one end of the spring 412 abuts against the top ball 413, and the other end of the spring 412 abuts against the cylinder body 411. One end of the ejector pin 420 extends into the cylinder body 411 through the opening of the cylinder body 411 facing away from the ejector pin 413, and the ejector pin 420 can contact the ejector pin 413. When the grounding lock is inserted into the mounting structure 300, the grounding lock pushes the ejector pin 413 extending into the mounting structure 300 back into the cylinder body 411, and the spring 412 is compressed. The ejector pin 420 abuts against the self-reset switch 200 under the push of the ejector pin 413, so that the self-reset switch 200 is actuated. After the grounding lock leaves the mounting structure 300, the top ball 413 returns to its initial state under the action of the spring 412, the force on the top pin 420 disappears, and the self-resetting switch 200 resets itself at the same time. It is understandable that the elastic device 410 can also be implemented using other elastic structures such as spring sheets.

[0033] In a further embodiment, the mounting structure 300 includes a stud 310 and a nut 320, and the stud 310 is inserted into a through hole provided on the base 100. The stud 310 is a "T"-shaped hollow cylinder with an external thread, and the nut 320 has an internal thread matching the external thread. The cylinder is also provided with a through hole for inserting the trigger mechanism 400. A boss is provided at one end of the mounting structure 300. In some embodiments, the boss is in the shape of a regular polygonal column. The nut 320 is threadedly sleeved on the end of the stud 310 facing away from the boss to fix the stud 310. Figure 3 It is understandable that the mounting structure 300 can also be fixed on the base 100 by other means, such as welding or bonding.

[0034] In some embodiments, the grounding pile also includes an aviation socket 500, which has an internal thread for fixing an aviation plug. The aviation socket 500 is arranged in the base 100. The aviation plug can be electrically connected to the pin of the self-resetting switch 200 through the aviation socket 500 to transmit the switch signal of the grounding pile to the linkage device.

[0035] Reference below Figure 2 and Figure 3 The grounding pile according to the embodiment of the present invention is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the invention.

[0036] Reference Figure 2 and Figure 3 The base 100 includes a horizontal plate 110, a fixed block 120 and an end cover 130. The fixed block 120 is vertically welded to the horizontal plate 110 to form a "T"-shaped structure. The horizontal plate 110 is used to electrically connect to the earth, and the fixed block 120 is used to electrically connect to the ground lock. The mounting structure 300 is arranged on the fixed block 120, and the trigger mechanism 400 is also arranged in the space opened in the fixed block 120. The self-resetting switch 200 and the aviation socket 500 are arranged in the end cover 130 installed on the top of the fixed block 120. In this embodiment, the self-resetting switch 200 is a touch switch with IP67 waterproof packaging, with an aluminum alloy shell, and is potted with epoxy resin. It is turned on when the button is pressed and disconnected when it is released. The end cover 130 is connected to the fixed block 120 by four screws. The button of the self-resetting switch 200 is arranged toward the horizontal plate 110, and the pin of the self-resetting switch 200 is arranged in the direction facing away from the horizontal plate 110. The aviation socket 500 is arranged at the top of the end cover 130, and its socket is facing the direction away from the horizontal plate 110. The pins of the self-resetting switch 200 can be seen through its socket, and the bottom of the aviation socket 500 has threads. This arrangement is convenient for inserting the grounding lock and installing the grounding pile. A circular waterproof groove is also arranged between the end cover 130 and the fixing block 120, and an O-ring is arranged in the waterproof groove to improve the waterproof level of the grounding pile.

[0037] Reference Figure 1 and Figure 3 The mounting structure 300 includes a stud 310 and a nut 320. The mounting structure 300 is fixedly connected to the base 100 by threading. The nut 320 is a hexagonal nut. Accordingly, the stud 310 is a "T"-shaped hollow cylinder, and one end of the stud 310 is provided with a hexagonal boss to facilitate the installation of the mounting structure 300. The mounting structure 300 is made of copper with good conductivity.

[0038] Reference Figure 2 and Figure 3The trigger mechanism 400 includes a pin 420 and an elastic device 410 composed of a cylinder 411, a spring 412 and a top ball 413. The top ball 413 is a steel ball, and a portion of the top ball 413 slightly smaller than half of the total surface area is exposed outside the cylinder 411. The top ball 413 can move up and down in the cylindrical space in the cylinder 411, one end of the spring 412 abuts against the surface of the top ball 413, and the other end of the spring 412 abuts against the inner wall of the cylinder 411. Figure 2 The cylinder 411 has an opening on the top for the ejector pin 420 to extend into. The ejector pin 420 is a truncated cone formed by cutting off the tip of a cone with a taper of 2, and its cross-sectional end extends into the cylinder 411, with a certain taper so that the ejector pin 420 can move up and down without being stuck.

[0039] According to the grounding pile of the embodiment of the present invention, the trigger mechanism detects whether the grounding lock is connected to the grounding pile, triggers the self-resetting switch arranged in the grounding pile, and transmits the switch signal, so as to implement feedback of the grounding status and can be linked with other devices to realize safer control.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A grounding pile, characterized in that: include A base, used to electrically connect the grounding lock to the earth; A mounting structure, disposed on the base, for connecting the base and the grounding lock; a trigger mechanism, disposed in the base, for detecting whether the grounding lock is assembled on the mounting structure; A self-resetting switch connected to the trigger mechanism, used to receive a trigger signal from the trigger mechanism and convert the trigger signal into an electrical signal for output; The trigger mechanism comprises an ejector pin and an elastic device, one end of the ejector pin contacts the self-resetting switch, the other end of the ejector pin extends into the elastic device, and one end of the elastic device facing away from the ejector pin extends into the mounting structure; The elastic device comprises a top ball, a spring and a cylinder body, wherein the top ball is movably arranged at one end of the cylinder body, and the other end of the cylinder body is provided with an opening for passing the top pin, and the top pin contacts the top ball through the opening, and a part of the spherical surface of the top ball is exposed in the cylinder body, and the spring is arranged in the cylinder body, and one end of the spring contacts the cylinder body, and the other end of the spring contacts the surface of the top ball; The surface area of ​​the top ball exposed in the cylinder body is less than half of the total area of ​​the top ball.

2. The grounding pile according to claim 1, characterized in that: The ejector pin is a truncated cone structure.

3. The grounding pile according to claim 1, characterized in that: The mounting structure includes a stud and a nut. The stud is a "T"-shaped hollow cylinder with a boss at one end. The cylinder has an external thread, and the nut has an internal thread matching the external thread. A first through hole is opened on the cylinder for inserting the trigger mechanism, and a second through hole is provided on the base. The stud is inserted into the second through hole, and the nut is sleeved on one end of the stud facing away from the boss.

4. The grounding pile according to claim 3, characterized in that: The boss is a regular polygonal column.

5. The grounding pile according to any one of claims 1 to 4, characterized in that: The base includes a transverse plate, a fixed block and an end cover, wherein the fixed block is vertically arranged on the transverse plate, the end cover is arranged at the other end of the fixed block, the mounting structure and the trigger mechanism are arranged in the fixed block, and the self-resetting switch is arranged in the end cover.

6. The grounding pile according to claim 5, characterized in that: It also includes an aviation socket arranged in the end cover, and the self-resetting switch is electrically connected to the outside through the aviation socket.

7. The grounding pile according to claim 6, characterized in that: The aviation socket is provided with internal threads.

8. The grounding pile according to claim 5, characterized in that: One end of the fixing block connected to the end cover is provided with a waterproof groove, and an O-type sealing ring is provided in the waterproof groove.

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