Short circuit grounding device

Abstract

The invention provides a short-circuit grounding device, which comprises a first wire clamp and an insulating control rod, and is characterized in that the first wire clamp is used for being in contact with a conductive part of a power system to form electrical connection; the insulating control rod is used for an operator to indirectly control the first wire clamp beyond a safe distance; wherein the first wire clamp is connected with the insulating control rod through a rotary connecting assembly, so that the first wire clamp is rotatably arranged around at least two preset axes relative to the insulating control rod, and the two preset axes are arranged in a mutually perpendicular mode. The invention solves the problem that a 0.4 kV short-circuit grounding wire clamp in the prior art is not suitable for areas with narrow working spaces, such as a low-voltage cabinet.

Description

Technical Field

[0001] The invention relates to the technical field of power grounding wires, in particular to a short-circuit grounding device. Background Art

[0002] Operators should not perform power outage maintenance work without grounding or incomplete grounding. However, due to the large size of the common 0.4kV short-circuit grounding wire clamp and the fact that the wire clamp and the rod body are fixed on the same straight line, this 0.4kV short-circuit grounding wire clamp is not suitable for areas with narrow working space such as low-voltage cabinets. As a result, the grounding measures in low-voltage distribution network operations, metering operations and distributed power supply-related work cannot use this 0.4kV short-circuit grounding wire clamp. Wire grounding can only be used instead of this 0.4kV short-circuit grounding wire clamp. Some operators even simply do not ground for convenience, resulting in huge safety hazards in power outage maintenance operations. Summary of the Invention

[0003] The main purpose of the present invention is to provide a short-circuit grounding device to solve the problem that the 0.4kV short-circuit grounding clamp in the prior art is not suitable for areas with narrow working space such as low-voltage cabinets.

[0004] In order to achieve the above-mentioned objectives, the present invention provides a short-circuit grounding device, comprising: a first wire clamp and an insulating operating rod, the first wire clamp being used to contact the conductive components of the power system to form an electrical connection; the insulating operating rod being used for an operator to indirectly control the first wire clamp from a safe distance; wherein the first wire clamp and the insulating operating rod are connected by a rotating connection assembly so that the first wire clamp is rotatably arranged relative to the insulating operating rod around at least two preset axes, and the two preset axes are arranged perpendicular to each other.

[0005] Furthermore, the rotating connection assembly includes a first rotating shaft, a second rotating shaft and a connecting member, the connecting member is connected to the first wire clamp through the first rotating shaft so that the first wire clamp rotates around the axis of the first rotating shaft; the connecting member is connected to the insulating control rod through the second rotating shaft so that the connecting member rotates around the axis of the second rotating shaft relative to the insulating control rod; the axial direction of the first rotating shaft and the axial direction of the second rotating shaft are arranged perpendicular to each other.

[0006] Furthermore, the upper end of the connecting member is provided with a first axial hole matching the first rotating shaft, the first rotating shaft passes through the first axial hole to be firmly connected with the connecting member, the lower end of the first wire clamp is provided with a first rotating support, and at least one end of the first rotating shaft is rotatably connected to the first rotating support.

[0007] Furthermore, the first rotating support member is a first groove body, the first groove body has two oppositely arranged first groove walls, and a first accommodating gap is provided between the two first groove walls. The first accommodating gap is used to accommodate the connecting member, and the two ends of the first rotating shaft passing through the connecting member are respectively rotatably connected to the two first groove walls.

[0008] Furthermore, each first groove wall is provided with a first connecting hole, which is clearance-fitted with the first rotating shaft. The two ends of the first rotating shaft are respectively passed through the two first connecting holes so that the two ends of the first rotating shaft are respectively rotatably connected to the two first groove walls.

[0009] Furthermore, a second axial hole matching the second rotating shaft is provided at the lower end of the connecting member, and the second rotating shaft passes through the second axial hole to be securely connected to the connecting member. A second rotating support is provided at the upper end of the insulating control rod, and at least one end of the second rotating shaft is rotatably connected to the second rotating support.

[0010] Furthermore, the second rotating support member is a second groove body, which has two oppositely arranged second groove walls, and a second accommodating gap between the two second groove walls. The second accommodating gap is used to accommodate the connecting member, and the two ends of the second rotating shaft passing through the connecting member are respectively rotatably connected to the two second groove walls.

[0011] Furthermore, each second groove wall is provided with a second connecting hole, which is clearance-fitted with the second rotating shaft. The two ends of the second rotating shaft are respectively passed through the two second connecting holes so that the two ends of the second rotating shaft are respectively rotatably connected to the two second groove walls.

[0012] Furthermore, the first wire clamp includes a clamping frame and a clamping member, the clamping frame is provided with a first fixed clamping surface in contact with the conductive component, the clamping member is opposite to the first fixed clamping surface to form a clamping gap for clamping the conductive component, and the clamping member is movably mounted on the clamping frame to adjust the size of the clamping gap.

[0013] Furthermore, the short-circuit grounding device also includes a first threaded rod, which is passed through the clamping frame, and the two ends of the first threaded rod are respectively connected to the first rotating support and the clamping member, and the first threaded rod is rotatably arranged around the axis of the first threaded rod so that the clamping member moves along the extension direction of the first threaded rod; wherein the extension direction of the first threaded rod is arranged perpendicular to the axial direction of the first rotating shaft and the axial direction of the second rotating shaft.

[0014] By applying the technical solution of the present invention, the short-circuit grounding device includes a first wire clamp and an insulating operating rod. The first wire clamp is connected to the insulating operating rod by a rotating connecting assembly. The first wire clamp is rotatably arranged around at least two preset axes relative to the insulating operating rod, so that when the first wire clamp is extended into an area with a narrow working space such as a low-voltage cabinet, the first wire clamp can be bent relative to the insulating operating rod, which can increase the range of movement of the first wire clamp in the area with a narrow working space, making it easier for the first wire clamp to contact the conductive components of the power system, so that the short-circuit grounding device of the present application is suitable for areas with a narrow working space such as a low-voltage cabinet, thereby solving the problem that the 0.4.kV short-circuit grounding wire clamp in the prior art is not suitable for areas with a narrow working space such as a low-voltage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A schematic structural diagram of an embodiment of a short-circuit grounding device (a first wire clamp) according to the present invention is shown;

[0017] Figure 2 Shown Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0018] Figure 3 A schematic structural diagram of an embodiment of a short-circuit grounding device (a plurality of first clamps) according to the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. First wire clamp; 20. Insulated operating rod; 30. First rotating axis; 40. Second rotating axis; 50. Connecting piece; 31. First slot body; 33. First slot wall; 41. Second slot body; 42. Second slot wall; 43. Second accommodating gap; 60. Clamping frame; 61. Clamping piece; 62. Clamping gap; 63. First threaded rod; 101. Second wire clamp. DETAILED DESCRIPTION

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0024] Please refer to Figures 1 to 3 The present invention provides a short-circuit grounding device, comprising: a first wire clamp 10 and an insulating operating rod 20, wherein the first wire clamp 10 is used to contact the conductive components of the power system to form an electrical connection; the insulating operating rod 20 is used for an operator to indirectly control the first wire clamp 10 from a safe distance; wherein the first wire clamp 10 and the insulating operating rod 20 are connected by a rotating connection assembly, so that the first wire clamp 10 is rotatably arranged relative to the insulating operating rod 20 around at least two preset axes, and the two preset axes are arranged perpendicular to each other.

[0025] The short-circuit grounding device of the present invention includes a first wire clamp 10 and an insulating operating rod 20. The first wire clamp 10 is connected to the insulating operating rod 20 by a rotating connecting assembly. The first wire clamp 10 is rotatably arranged around at least two preset axes relative to the insulating operating rod 20, so that when the first wire clamp 10 is extended into an area with a narrow working space such as a low-voltage cabinet, the first wire clamp 10 can bend relative to the insulating operating rod 20, which can increase the range of movement of the first wire clamp 10 in the area with a narrow working space, making it easier for the first wire clamp 10 to contact the conductive components of the power system, making the short-circuit grounding device of the present application suitable for areas with a narrow working space such as a low-voltage cabinet, thereby solving the problem that the 0.4kV short-circuit grounding wire clamp in the prior art is not suitable for areas with a narrow working space such as a low-voltage cabinet.

[0026] Specifically, since the first wire clamp 10 of the present invention is smaller in size, it is easier to pass through the copper busbar gap in the low-voltage cabinet to contact the conductive components of the power system, making the short-circuit grounding device of the present application suitable for areas with narrow working space such as low-voltage cabinets.

[0027] Specifically, the short-circuit grounding device of the present invention is a 0.4 kV short-circuit grounding device.

[0028] In this embodiment, the rotating connection assembly includes a first rotating shaft 30, a second rotating shaft 40 and a connecting member 50. The connecting member 50 is connected to the first wire clamp 10 through the first rotating shaft 30 so that the first wire clamp 10 rotates around the axis of the first rotating shaft 30; the connecting member 50 is connected to the insulating operating rod 20 through the second rotating shaft 40 so that the connecting member 50 rotates relative to the insulating operating rod 20 around the axis of the second rotating shaft 40; the axial direction of the first rotating shaft 30 and the axial direction of the second rotating shaft 40 are arranged perpendicular to each other.

[0029] Specifically, the first rotating shaft 30 is used to connect the first wire clamp 10 and the connecting member 50, and the second rotating shaft 40 is used to connect the insulating operating rod 20 and the connecting member 50, so that the connecting member 50 can drive the first wire clamp 10 to rotate around the axis of the second rotating shaft 40, and at the same time, the first wire clamp 10 can rotate around the axis of the first rotating shaft 30 relative to the connecting member 50, thereby ensuring that the first wire clamp 10 rotates relative to the insulating operating rod 20 around the axis of the first rotating shaft 30 and the axis of the second rotating shaft 40.

[0030] In this embodiment, the upper end of the connecting member 50 is provided with a first axial hole matching the first rotating shaft 30, and the first rotating shaft 30 passes through the first axial hole to be fastened to the connecting member 50. The lower end of the first wire clamp 10 is provided with a first rotating support, and at least one end of the first rotating shaft 30 is rotatably connected to the first rotating support.

[0031] Specifically, at least one end of the first rotating shaft 30 is rotatably connected to the first rotating support, so that the first rotating shaft 30 can be rotatably connected to the first wire clamp 10. At the same time, since the first rotating shaft 30 is passed through the connecting member 50, the first wire clamp 10 is rotatably connected to the connecting member 50, thereby ensuring that the first wire clamp 10 can rotate around the axis of the first rotating shaft 30 relative to the connecting member 50.

[0032] In this embodiment, the first rotating support member is a first groove body 31, the first groove body 31 has two oppositely arranged first groove walls 33, and there is a first accommodating gap between the two first groove walls 33. The first accommodating gap is used to accommodate the connecting member 50, and the two ends of the first rotating shaft 30 passing through the connecting member 50 are respectively rotatably connected to the two first groove walls 33.

[0033] Specifically, the connecting member 50 is accommodated by the first accommodating gap, and the two ends of the first rotating shaft 30 passing through the connecting member 50 are respectively rotatably connected to the two first groove walls 33, so that the first rotating shaft 30 is firmly connected to the first rotating support. At the same time, since the first rotating shaft 30 is passed through the connecting member 50, the connecting member 50 is firmly connected to the first rotating support.

[0034] In this embodiment, a first connecting hole is provided on each first groove wall 33, and the first connecting hole is clearance-fitted with the first rotating shaft 30. The two ends of the first rotating shaft 30 are respectively passed through the two first connecting holes, so that the two ends of the first rotating shaft 30 are respectively rotatably connected to the two first groove walls 33.

[0035] Specifically, by setting the first connecting hole and the first rotating shaft 30 to be clearance-fitted, the first slot 31 , i.e. the first rotating support, is rotatably connected to the first rotating shaft 30 , so that the first wire clamp 10 can rotate around the axis of the first rotating shaft 30 .

[0036] In this embodiment, the lower end of the connecting member 50 is provided with a second axial hole matching the second rotating shaft 40, and the second rotating shaft 40 passes through the second axial hole to be firmly connected with the connecting member 50. The upper end of the insulating control rod 20 is provided with a second rotating support, and at least one end of the second rotating shaft 40 is rotatably connected to the second rotating support.

[0037] Specifically, at least one end of the second rotating shaft 40 is rotatably connected to the second rotating support, so that the second rotating shaft 40 can be rotatably connected to the insulating operating rod 20. At the same time, since the second rotating shaft 40 is passed through the connecting member 50, the insulating operating rod 20 is rotatably connected to the connecting member 50, thereby ensuring that the connecting member 50 can rotate around the axis of the second rotating shaft 40 relative to the insulating operating rod 20.

[0038] In this embodiment, the second rotating support member is a second groove body 41, the second groove body 41 has two oppositely arranged second groove walls 42, and a second accommodating gap 43 is provided between the two second groove walls 42. The second accommodating gap 43 is used to accommodate the connecting member 50, and the two ends of the second rotating shaft 40 passing through the connecting member 50 are respectively rotatably connected to the two second groove walls 42.

[0039] Specifically, the connecting member 50 is accommodated by the second accommodating gap 43, and the two ends of the second rotating shaft 40 passing through the connecting member 50 are respectively rotatably connected to the two second groove walls 42, so that the second rotating shaft 40 is firmly connected to the second rotating support. At the same time, since the second rotating shaft 40 is passed through the connecting member 50, the connecting member 50 is firmly connected to the second rotating support.

[0040] In this embodiment, a second connecting hole is provided on each second groove wall 42, and the second connecting hole is clearance-fitted with the second rotating shaft 40. The two ends of the second rotating shaft 40 are respectively passed through the two second connecting holes, so that the two ends of the second rotating shaft 40 are respectively rotatably connected to the two second groove walls 42.

[0041] Specifically, by setting the second connecting hole and the second rotating shaft 40 to be clearance-fitted, the second groove body 41 , i.e. the second rotating support member, is rotatably connected to the second rotating shaft 40 , so that the connecting member 50 can rotate around the axis of the second rotating shaft 40 .

[0042] In this embodiment, the first wire clamp 10 includes a clamping frame 60 and a clamping member 61. The clamping frame 60 is provided with a first fixed clamping surface that contacts the conductive component. The clamping member 61 is opposite to the first fixed clamping surface to form a clamping gap 62 for clamping the conductive component. The clamping member 61 is movably mounted on the clamping frame 60 to adjust the size of the clamping gap 62.

[0043] Specifically, by adjusting the size of the clamping gap 62 , it is possible to ensure that the clamping member 61 can smoothly clamp the conductive component, thereby ensuring smooth electrical connection between the first clamp 10 and the conductive component.

[0044] In this embodiment, the short-circuit grounding device also includes a first threaded rod 63, which is passed through the clamping frame 60. The two ends of the first threaded rod 63 are respectively connected to the first rotating support member and the clamping member 61. The first threaded rod 63 is rotatably arranged around the axis of the first threaded rod 63 so that the clamping member 61 moves along the extension direction of the first threaded rod 63; wherein the extension direction of the first threaded rod 63 is perpendicular to the axial direction of the first rotating shaft 30 and the axial direction of the second rotating shaft 40.

[0045] Specifically, the operator rotates the insulating control rod 20 so that the insulating control rod 20 drives the first threaded rod 63 to rotate through the first rotating support, the connecting member 50 and the second rotating support, so that the clamping member 61 can move along the extension direction of the first threaded rod 63 toward the direction close to the first fixed clamping surface to smoothly adjust the size of the clamping gap 62.

[0046] Specifically, the short-circuit grounding device of the present invention further includes a second wire clamp 101, which is used to be electrically connected to the grounding component. The second wire clamp 101 and the first wire clamp 10 are electrically connected via a cable, so that the conductive components of the power system are electrically connected to the grounding component, so that the conductive components of the power system are smoothly grounded; wherein, Figure 3 As shown, the second clamp 101 can be electrically connected to the plurality of first clamps 10 .

[0047] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0048] The short-circuit grounding device of the present invention includes a first wire clamp 10 and an insulating operating rod 20. The first wire clamp 10 is connected to the insulating operating rod 20 by a rotating connecting assembly. The first wire clamp 10 is rotatably arranged around at least two preset axes relative to the insulating operating rod 20, so that when the first wire clamp 10 is extended into an area with a narrow working space such as a low-voltage cabinet, the first wire clamp 10 can bend relative to the insulating operating rod 20, which can increase the range of movement of the first wire clamp 10 in the area with a narrow working space, making it easier for the first wire clamp 10 to contact the conductive components of the power system, making the short-circuit grounding device of the present application suitable for areas with a narrow working space such as a low-voltage cabinet, thereby solving the problem that the 0.4kV short-circuit grounding wire clamp in the prior art is not suitable for areas with a narrow working space such as a low-voltage cabinet.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A short-circuit grounding device, characterized in that: include: A first wire clamp (10) and an insulating control rod (20), wherein the first wire clamp (10) is used to contact a conductive component of the power system to form an electrical connection; and the insulating control rod (20) is used for an operator to indirectly control the first wire clamp (10) from a safe distance; The first wire clamp (10) is connected to the insulating operating rod (20) via a rotating connection assembly, so that the first wire clamp (10) is rotatably arranged relative to the insulating operating rod (20) around at least two preset axes, and the two preset axes are arranged perpendicular to each other.

2. The short-circuit grounding device according to claim 1, characterized in that: The rotating connection assembly comprises a first rotating shaft (30), a second rotating shaft (40) and a connecting member (50); the connecting member (50) is connected to the first wire clamp (10) via the first rotating shaft (30) so that the first wire clamp (10) rotates around the axis of the first rotating shaft (30); the connecting member (50) is connected to the insulating operating rod (20) via the second rotating shaft (40) so that the connecting member (50) rotates relative to the insulating operating rod (20) around the axis of the second rotating shaft (40); the axial direction of the first rotating shaft (30) and the axial direction of the second rotating shaft (40) are arranged perpendicular to each other.

3. The short-circuit grounding device according to claim 2, characterized in that: The upper end of the connecting member (50) is provided with a first axial hole matching the first rotating shaft (30), and the first rotating shaft (30) passes through the first axial hole to be tightly connected with the connecting member (50). The lower end of the first wire clamp (10) is provided with a first rotating support, and at least one end of the first rotating shaft (30) is rotatably connected to the first rotating support.

4. The short-circuit grounding device according to claim 3, characterized in that: The first rotating support member is a first groove body (31), the first groove body (31) having two first groove walls (33) arranged opposite to each other, a first accommodating gap being provided between the two first groove walls (33), the first accommodating gap being used to accommodate the connecting member (50), and the two ends of the first rotating shaft (30) passing through the connecting member (50) being rotatably connected to the two first groove walls (33) respectively.

5. The short-circuit grounding device according to claim 4, characterized in that: Each of the first groove walls (33) is provided with a first connecting hole, the first connecting hole and the first rotating shaft (30) are clearance-matched, and the two ends of the first rotating shaft (30) are respectively passed through the two first connecting holes, so that the two ends of the first rotating shaft (30) are respectively rotatably connected to the two first groove walls (33).

6. The short-circuit grounding device according to claim 2, characterized in that: The lower end of the connecting member (50) is provided with a second axial hole matching the second rotating shaft (40), and the second rotating shaft (40) passes through the second axial hole to be tightly connected with the connecting member (50). The upper end of the insulating control rod (20) is provided with a second rotating support, and at least one end of the second rotating shaft (40) is rotatably connected to the second rotating support.

7. The short-circuit grounding device according to claim 6, characterized in that: The second rotating support member is a second groove body (41), the second groove body (41) has two second groove walls (42) arranged opposite to each other, a second accommodating gap (43) is provided between the two second groove walls (42), the second accommodating gap (43) is used to accommodate the connecting member (50), and the two ends of the second rotating shaft (40) passing through the connecting member (50) are respectively rotatably connected to the two second groove walls (42).

8. The short-circuit grounding device according to claim 7, characterized in that: Each of the second groove walls (42) is provided with a second connection hole, the second connection hole and the second rotating shaft (40) are clearance-matched, and the two ends of the second rotating shaft (40) are respectively passed through the two second connection holes, so that the two ends of the second rotating shaft (40) are respectively rotatably connected to the two second groove walls (42).

9. The short-circuit grounding device according to claim 3, characterized in that: The first wire clamp (10) comprises a clamping frame (60) and a clamping member (61); the clamping frame (60) is provided with a first fixed clamping surface in contact with the conductive component; the clamping member (61) is opposite to the first fixed clamping surface to form a clamping gap (62) for clamping the conductive component; the clamping member (61) is movably mounted on the clamping frame (60) to adjust the size of the clamping gap (62).

10. The short-circuit grounding device according to claim 9, characterized in that: The short-circuit grounding device also includes a first threaded rod (63), the first threaded rod (63) is inserted into the clamping frame (60), the two ends of the first threaded rod (63) are respectively connected to the first rotating support and the clamping member (61), the first threaded rod (63) is rotatably arranged around the axis of the first threaded rod (63) so that the clamping member (61) moves along the extension direction of the first threaded rod (63); wherein the extension direction of the first threaded rod (63) is perpendicular to the axial direction of the first rotating shaft (30) and the axial direction of the second rotating shaft (40).

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