A screw-in low voltage ground rod

Abstract

The application relates to the technical field of grounding rods, in particular to a screw type low-voltage grounding rod which comprises a positioning structure, a wiring sleeve and a connecting structure, a threaded column and a wiring hole are arranged on the positioning structure, the wiring sleeve is arranged on the threaded column, the top surface of the wiring sleeve is provided with a plug-in hole, and the connecting structure is connected with the positioning structure; the screw type low-voltage grounding rod can overcome the defects of the prior art, such as insufficient contact of the grounding wire, low wiring efficiency and high operation danger, can quickly arrange the grounding wire, occupies small space, reduces the short circuit accidents caused by the mis-touch of the live busbar, improves the wiring efficiency and improves the operation safety.

Description

Technical Field

[0001] This invention relates to the field of grounding rod technology, and more particularly to a screw-on low-voltage grounding rod. Background Technology

[0002] During power outage maintenance of low-voltage switchgear, grounding wires must be installed to ensure work safety. Currently, the commonly used grounding wire connection method is the clamp-type structure. However, due to the limitations of the lugs, screws, and insulation layers, the grounding clamp cannot fully contact the metal conductor, resulting in low wiring efficiency and safety hazards. Furthermore, the distances between low-voltage switchgear, adjacent switch bays, and busbars are currently very small, while the grounding clamp structure is relatively large. During installation, the grounding clamp is prone to accidentally touching a live busbar, causing a short circuit, making the work highly dangerous. Summary of the Invention

[0003] To overcome the shortcomings of existing grounding wires in terms of insufficient contact, low wiring efficiency, and high operational risks, this invention provides a screw-on low-voltage grounding rod that allows for quick installation of grounding wires, occupies little space, reduces the risk of accidental short circuits caused by accidental contact with live busbars, improves wiring efficiency, and enhances operational safety.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a screw-on low-voltage grounding rod, comprising a positioning structure, a wiring sleeve and a connecting structure, wherein the positioning structure is provided with a threaded post and a wiring hole, the wiring sleeve is mounted on the threaded post, the top surface of the wiring sleeve is provided with a plug-in hole, and the connecting structure is connected to the positioning structure.

[0005] Furthermore, the positioning structure includes a first positioning rod and a second positioning rod, the threaded post, the wiring hole and the connecting structure are respectively disposed on the first positioning rod, and the second positioning rod and the threaded post are disposed on the same side of the first positioning rod.

[0006] Furthermore, the top surface of the second positioning rod is a V-shaped surface.

[0007] Furthermore, the second positioning rod divides the two ends of the first positioning rod into a first positioning part and a second positioning part. The threaded post and the connecting structure are respectively disposed on the first positioning part. There is a gap between the threaded post and the second positioning rod. The wiring hole is disposed on the second positioning part.

[0008] Furthermore, the second positioning rod is perpendicular to the first positioning rod.

[0009] Furthermore, the top surface of the second top is higher than the top surface of the first positioning part.

[0010] Furthermore, the wiring hole is provided in two parts.

[0011] Furthermore, the axis of the wiring hole is perpendicular to the axis of the wiring sleeve.

[0012] Furthermore, the connection structure includes a universal coupling and a connecting seat, with both ends of the universal coupling connected to the first positioning part and the connecting seat, respectively.

[0013] Furthermore, the connecting seat is a cylindrical structure, and the inner wall of the cylindrical structure is provided with connecting threads.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The present invention provides a screw-on low-voltage grounding rod, comprising a positioning structure, a wiring sleeve, and a connecting structure. The positioning structure is provided with a threaded post and a wiring hole. The wiring sleeve is mounted on the threaded post, and the top surface of the wiring sleeve is provided with a plug-in hole. The connecting structure is connected to the positioning structure.

[0016] The positioning structure of this invention directly contacts the low-voltage outgoing line for fixing and positioning it. The threaded post engages with the wiring sleeve, which connects to the low-voltage switch outgoing screw. The engagement of the threaded post and the wiring sleeve allows for tightening and loosening of the screw. The outgoing hole on the positioning structure is used to install the grounding wire screw, serving to fix the grounding wire and handle current. The connecting structure connects to an external operating rod. In this embodiment, the tightening-type low-voltage grounding rod connects the load side of the low-voltage switch to the grounding wire using a tightening method. The original metal clamp for the grounding wire is replaced with a wiring sleeve. The engagement of the wiring sleeve and the threaded post allows for inward tightening and outward removal of the grounding wire from the load side of the low-voltage switch. This method of installing and removing the grounding wire replaces the original clamp-type structure, ensuring that the grounding resistance remains unchanged while reducing the space occupied by the device. This reduces the risk of contact between the grounding wire and adjacent energized low-voltage switches, reduces the risk of accidental short circuits caused by accidental contact with energized busbars, improves the efficiency of grounding wire installation, and ensures the safety of operators. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the screw-on low-voltage grounding rod of the present invention;

[0018] Appendix Figure 2 This is a front view of the screw-on low-voltage grounding rod of the present invention;

[0019] Appendix Figure 3 This is a top view of the screw-on low-voltage grounding rod of the present invention.

[0020] Reference numerals: 1-Connecting sleeve; 2-Insertion hole; 3-Threaded post; 4-Connecting hole; 5-First positioning rod; 510-First positioning part; 520-Second positioning part; 6-Second positioning rod; 7-V-shaped surface; 8-Universal coupling; 9-Connecting seat; 10-Operating lever. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The present invention will be described in one embodiment below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] like Figure 1-3 As shown, this embodiment provides a screw-on low-voltage grounding rod, including a positioning structure, a wiring sleeve 1, and a connecting structure. The positioning structure is provided with a threaded post 3 and a wiring hole 4. The wiring sleeve 1 is installed on the threaded post 3. The top surface of the wiring sleeve 1 is provided with a plug hole 2. The connecting structure is connected to the positioning structure.

[0023] It should be noted that the positioning structure directly contacts the low-voltage output line for fixing and positioning it. The threaded post 3 mates with the wiring sleeve 1, which has a insertion hole 2 for connecting the low-voltage switch output screw. The low-voltage switch output screw is inserted into the insertion hole 2 on the wiring sleeve 1. The wiring sleeve 1 is mounted on the threaded post 3, and the engagement between the threaded post 3 and the wiring sleeve 1 allows for tightening and loosening of the low-voltage switch output screw. The output hole on the positioning structure is used to install the grounding wire screw, serving to fix the grounding wire and handle current. The connecting structure connects to the external operating lever 10. In this embodiment, the screw... The tight-fitting low-voltage grounding rod connects the load side of the low-voltage switch to the grounding wire using a screw-on method. The original metal clamp of the grounding wire is replaced with a connecting sleeve 1. Through the cooperation of the connecting sleeve 1 and the threaded post 3, the load side of the low-voltage switch and the grounding wire can be screwed inward to connect and removed outward. This method of installing and removing the grounding wire replaces the original clamp-type structure. It can reduce the space occupied by the device while ensuring that the grounding resistance remains unchanged, thereby reducing the risk of contact between the grounding wire and adjacent energized low-voltage switches, reducing accidents caused by accidental contact with energized busbars and short circuits, improving the installation efficiency of the grounding wire, and ensuring the operational safety of the operators.

[0024] In one embodiment, such as Figure 1As shown, in order to improve the positioning effect and improve the wiring stability, the positioning structure in this embodiment includes a first positioning rod 5 and a second positioning rod 6. The threaded post 3, the wiring hole 4 and the connecting structure are respectively set on the first positioning rod 5, and the second positioning rod 6 and the threaded post 3 are set on the same side of the first positioning rod 5.

[0025] It should be noted that the first positioning rod 5 is used to directly contact the low-voltage outgoing line for fixing and positioning it. The second positioning rod 6 is used to install the threaded post 3, the wiring hole 4, and the connecting structure. Specifically, to increase the contact area between the first positioning rod 5 and the low-voltage outgoing line and improve the positioning effect, as follows... Figure 1 As shown, in this embodiment, the top surface of the second positioning rod 6 is a V-shaped surface 7.

[0026] In one embodiment, such as Figure 2 As shown, in order to avoid structures such as wire lugs, screws, and insulation layers, and to ensure that the grounding wire makes full contact with the low-voltage switch, in this embodiment, the second positioning rod 6 divides the two ends of the first positioning rod 5 into a first positioning part 510 and a second positioning part 520. The threaded post 3 and the connecting structure are respectively set on the first positioning part 510. There is a gap between the threaded post 3 and the second positioning rod 6. The wiring hole 4 is set on the second positioning part 520.

[0027] It should be noted that the distance between the threaded post 3 on the first positioning part 510 and the second positioning rod 6 is used to avoid the wire lug. Based on the average length of the wire lug of the low-voltage output line, the distance is preferably designed to be 3.5cm. At the same time, in order to further improve the avoidance effect on the wire lug, in this embodiment, the top surface of the second top is higher than the top surface of the first positioning part 510, that is, the recess of the first positioning part 510 is deeper than that of the second positioning part 520, which is conducive to accommodating the wire lug. At the same time, in order to improve the structural strength of the positioning structure, in this embodiment, the second positioning rod 6 is preferably set perpendicular to the first positioning rod 5.

[0028] In one embodiment, such as Figure 1 As shown, to facilitate the connection of grounding wires of different specifications, in this embodiment, it is preferable to provide two wiring holes 4. Also, as... Figure 2 As shown, it is preferable to make the axis of the wiring hole 4 perpendicular to the axis of the wiring sleeve 1, so that the grounding screw is installed on the side of the positioning structure. During installation, compared with the restriction of the top surface of the positioning structure by other structures, opening the wiring hole 4 on the side makes it easier to increase the installation space and improve the wiring efficiency.

[0029] In one embodiment, such as Figure 1 As shown, in order to facilitate connection with the external operating lever 10 and adjust the wiring angle, in this embodiment, the connection structure includes a universal coupling 8 and a connecting seat 9. The two ends of the universal coupling 8 are respectively connected to the first positioning part 510 and the connecting seat 9.

[0030] It should be noted that the existing clamping grounding wire operating rod 10 and the wire clamp are rigidly connected. After the grounding wire is installed, the box door cannot be closed, posing a risk of electric shock to personnel. In this embodiment, a universal coupling 8 is added between the operating rod and the positioning structure. After the grounding wire is installed, the angle between the operating rod 10 and the positioning structure can be flexibly adjusted so that the operating rod 10 can be set parallel to the box door, thereby closing the box door and reducing the risk of accidental electric shock to personnel. At the same time, in this embodiment, the connecting seat 9 is a cylindrical structure with connecting threads on the inner wall of the cylindrical structure, which facilitates the detachable connection between the connecting seat 9 and the operating rod 10. The operating rod 10 can be flexibly replaced for use, which is convenient for device maintenance.

[0031] Working principle:

[0032] This invention provides a screw-on low-voltage grounding rod. The positioning structure directly contacts the low-voltage outgoing line for fixing and positioning. A threaded post 3 engages with a connecting sleeve 1, which connects to the low-voltage switch outgoing screw. The engagement of the threaded post 3 and the connecting sleeve 1 allows for tightening and loosening of the screw. The outgoing hole on the positioning structure is used to install a grounding wire screw, serving to fix the grounding wire and handle current. The connecting structure connects to an external operating rod 10. In this embodiment, the screw-on low-voltage grounding rod uses a screw-on method to secure the low-voltage switch. The load side is connected to the grounding wire. The original metal clamp of the grounding wire is replaced with the terminal sleeve 1. Through the cooperation of the terminal sleeve 1 and the threaded post 3, the load side of the low-voltage switch and the grounding wire can be screwed inward to connect and removed outward. This method of installing and removing the grounding wire replaces the original clamp structure. It can reduce the space occupied by the device while ensuring that the grounding resistance remains unchanged. This reduces the risk of contact between the grounding wire and adjacent energized low-voltage switches, reduces the accidental short circuit caused by accidental contact with energized busbars, improves the installation efficiency of the grounding wire, and ensures the operation safety of the operators.

[0033] In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the invention 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. Therefore, the terms describing positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In addition, if the embodiments of this invention involve descriptions of "first," "second," etc., such descriptions are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of those features. Furthermore, the meaning of "and / or" throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that simultaneously satisfies A and B.

[0034] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of the present invention.

Claims

1. A screw-on low-voltage grounding rod, characterized in that, It includes a positioning structure, a wiring sleeve, and a connecting structure. The positioning structure is provided with a threaded post and a wiring hole. The wiring sleeve is mounted on the threaded post and has a plug hole on its top surface. The connecting structure is connected to the positioning structure. The positioning structure includes a first positioning rod and a second positioning rod. The threaded post, the wiring hole and the connecting structure are respectively disposed on the first positioning rod, and the second positioning rod and the threaded post are disposed on the same side of the first positioning rod. The second positioning rod divides the two ends of the first positioning rod into a first positioning part and a second positioning part. The threaded column and the connecting structure are respectively disposed on the first positioning part. There is a gap between the threaded column and the second positioning rod. The wiring hole is disposed on the second positioning part. The connection structure includes a universal coupling and a connecting seat, with both ends of the universal coupling connected to the first positioning rod and the connecting seat, respectively.

2. The screw-on low-voltage grounding rod according to claim 1, characterized in that, The top surface of the second positioning rod is a V-shaped surface.

3. The screw-on low-voltage grounding rod according to claim 1, characterized in that, The second positioning rod is perpendicular to the first positioning rod.

4. A screw-on low-voltage grounding rod according to claim 3, characterized in that, The top surface of the second positioning part is higher than the top surface of the first positioning part.

5. A screw-on low-voltage grounding rod according to claim 1, characterized in that, There are two wiring holes.

6. A screw-on low-voltage grounding rod according to claim 5, characterized in that, The axis of the wiring hole is perpendicular to the axis of the wiring sleeve.

7. A screw-on low-voltage grounding rod according to claim 6, characterized in that, The connecting seat is a cylindrical structure, and the inner wall of the cylindrical structure is provided with connecting threads.

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