Locking device for overhauling grounding wire end

Abstract

The utility model discloses a locking device for overhauling a grounding wire end, which belongs to the technical field of electrical equipment tools and comprises a first locking part, an adjusting part and a second locking part. The first locking part is used for locking the grounding wire end and the conductor; the adjusting part is connected with the first locking part and used for changing the locking or unlocking state of the first locking part; the second locking part is connected with the adjusting part and used for locking the adjusting part. According to the utility model, the problems in the prior art that the grounding wire end and the conductor are not firmly connected and are easy to loosen and fall off can be effectively solved; and meanwhile, some unauthorized personnel privately dismantle the grounding wire, so that induced voltage generated by an electrified body may harm equipment safety, and even may threaten life of maintenance personnel, and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power equipment tools and particularly relates to a terminal locking device for a maintenance grounding wire. Background Art

[0002] Installing grounding wires is one of the technical measures to ensure safe power work. It is an important task to be completed when working on electrical equipment during a total or partial power outage. It is a reliable safety measure to protect maintenance personnel at the workplace by eliminating residual pressure and induced electricity from equipment and preventing the risk of electric shock caused by sudden power outages. It is the "lifeline" to ensure the safety of maintenance personnel.

[0003] If the grounding wire is not installed securely, is loose, or falls off, the induced voltage generated by the proximity to the live body may endanger the safety of the equipment and may even pose a threat to the lives of maintenance personnel. In special operation sites with complex maintenance intersections and dense personnel traffic, people may accidentally touch it, causing the connection between the end of the maintenance grounding wire and the conductor to loosen or even fall off, the grounding wire spring to fail, and the grounding wire to be removed without the authorization of the operating personnel, etc., creating the risk of electric shock. Utility Model Content

[0004] The purpose of this utility model is to provide a maintenance grounding wire end locking device to address the above-mentioned shortcomings, so as to solve the problems such as the connection between the grounding wire end and the conductor is not firm and is easy to loosen and fall off in the existing technology; at the same time, some unauthorized personnel privately remove the grounding wire, resulting in the induced voltage generated by the charged body, which may endanger the safety of the equipment and even pose a threat to the life of the maintenance personnel. To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] A maintenance ground wire end locking device includes a first locking part, an adjustment part, and a second locking part; the first locking part is used to lock the ground wire end and the conductor; the adjustment part is connected to the first locking part and is used to change the locking or unlocking state of the first locking part; the second locking part is connected to the adjustment part and is used to lock the adjustment part.

[0006] Furthermore, the first locking portion includes two locking iron plates; both of the two locking iron plates are provided with an even number of first through holes; and the first through holes on the two locking iron plates correspond to each other one by one.

[0007] Furthermore, the adjusting portion includes threaded rods, the number of which is consistent with the number of the first through holes on the locking iron plates; the threaded rods pass through the corresponding first through holes on the two locking iron plates in sequence.

[0008] Furthermore, the adjustment part also includes a locking ring; a locking ring is provided at both ends of the threaded rod; two second through holes are provided in the radial direction of the locking ring, and one of the second through holes is set as a threaded hole; the locking ring is connected to the threaded rod through the threaded hole.

[0009] Furthermore, a through hole is provided in the axial direction of the locking ring.

[0010] Furthermore, two third through holes are provided on the locking ring; and a line connecting the two second through holes and a line connecting the two third through holes are perpendicular to each other.

[0011] Furthermore, the second locking portion is a padlock; the padlock is used to lock the two locking rings to restrict their rotation.

[0012] Furthermore, the number of the padlocks is half the number of the locking rings.

[0013] Furthermore, any one of the two third through holes is a threaded hole.

[0014] Furthermore, an even number of the first through holes are evenly arranged on the locking iron plate and away from the center of the locking iron plate.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model provides a grounding wire end locking device for maintenance. The device uses two locking iron plates to fix the grounding wire end to the conductor. The locking ring and threaded rod cooperate to lock them. The locking iron plates, locking ring and threaded rod are all separate parts, which can effectively fix the grounding wire end even in places with complex intersections during maintenance operations.

[0017] 2. The utility model provides a ground wire terminal locking device for maintenance, which further locks each locking ring through a padlock to prevent it from rotating and causing displacement between the threaded rod, thereby causing the ground wire terminal and the conductor to loosen and fall off. The setting of the padlock can also prevent other unauthorized personnel from unlocking it privately, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the utility model after the structure is locked;

[0019] Figure 2 This is a schematic diagram of the locking ring structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the locking iron plate structure of the utility model;

[0021] In the accompanying drawings: 1-locking iron plate, 2-first through hole, 3-threaded rod, 4-locking ring, 5-second through hole, 6-through hole, 7-third through hole, 8-padlock. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to the following embodiments.

[0023] See attached Figures 1 to 3 A grounding wire terminal locking device for maintenance, wherein the first locking portion is composed of two locking iron plates 1, which fix the connection between the grounding wire terminal and the conductor from two mutually symmetrical directions. A first through hole 2 is provided on the locking iron plate 1, and the number of the first through holes 2 is an even number, preferably four, which are evenly distributed around it. The adjustment portion includes a threaded rod 3 and a locking ring 4. The threaded rod 3 matches the number of first through holes 2 on the locking iron plate 1, preferably four. The threaded rod 3 passes through the first through holes 2 on the locking iron plate 1 and connects the two locking steel plates into one. The locking ring 4 is provided with two second through holes 5 in the radial direction. The center line of the two second through holes 5 passes through the center of the locking ring 4. One of the second through holes 5 is provided with an internal thread that cooperates with the threaded rod 3. The second through hole 5 of the locking ring 4 is passed through the threaded rod 3. The threaded rod 3 is provided with a locking ring 4 on both sides. Through the cooperation of the second through holes 5 on the two locking rings 4 and the threaded rod 3, the two locking iron plates 1 gradually approach each other as the locking rings 4 rotate on the threaded rod 3 until they are fixed to the connection between the grounding wire end and the conductor. The two locking iron plates 1 fix the grounding wire end and the conductor, and lock them together through the cooperation of the locking ring 4 and the threaded rod 3. The locking iron plates 1, the locking rings 4 and the threaded rod 3 are all independent parts, which can be well fixed even in some places with complex intersections during maintenance operations.

[0024] When securing the ground wire end and the conductor, the four locking rings 4 on the outside of any locking plate 1 are adjusted so that two adjacent locking rings are on the same horizontal plane, i.e., axially parallel to each other. The remaining two locking rings 4 are similarly adjusted to be on the same horizontal plane. After the adjustment is complete, a second locking portion, namely a padlock 8, or what is known in the industry as a dedicated operation lock, is inserted through the through-holes 6 of the two co-planar locking rings 4 and locked. This arrangement prevents unauthorized personnel from arbitrarily rotating the locking rings 4, which could cause the two locking plates to move away from each other, loosening the connection between the ground wire end and the conductor, or even causing it to fall off.

[0025] Furthermore, two third through holes 7 are provided in another radial direction of the locking ring 4. The center line of the two third through holes 7 passes through the center of the locking ring 4 and is perpendicular to the center line of the two second through holes 5. That is, a through hole is provided at every ninety-degree interval on the locking ring 4. With this structural arrangement, after the two locking iron plates 1 are fixed to the grounding wire end and the conductor, and the position of the locking ring 4 is adjusted, that is, the two adjacent locking rings 4 are located in the same horizontal plane, and the other two locking rings 4 on the same side are also located in the same horizontal plane, the third through holes 7 of the two locking rings 4 located in the same horizontal plane are now in a straight line. Then, the padlock 8 is passed through the third through holes 7 on the two locking rings 4, respectively, and the two third through holes 7 that are closest to each other. This also achieves locking of the locking ring 4, preventing other unauthorized persons from privately rotating the locking ring 4, thereby causing the two locking iron plates to move away from each other, causing the connection between the grounding wire end and the conductor to become loose or even fall off.

[0026] Further, one of the threaded holes of the third through hole 7 is provided with an internal thread that matches the threaded rod 3, which can make it more convenient for the operator, that is, there is no need to first find the first through hole 2 with an internal thread and then align it with the threaded rod 3. If all through holes are provided with internal threads, any through hole can be aligned with the threaded rod 3, which makes the operation faster.

[0027] The four first through holes 2 are evenly arranged around the locking iron plate 1 and away from the center of the locking iron plate 1, which can ensure that the locking is more stable and is not prone to misalignment or the two locking iron plates 1 being non-parallel, resulting in insufficient fixation of the grounding wire end and the conductor.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships 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 to the present invention.

[0029] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0030] In the description of the present invention, “plurality” means two or more.

[0031] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0032] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0033] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," and "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ground wire terminal locking device for maintenance, characterized in that: It comprises a first locking part, an adjusting part and a second locking part; the first locking part is used to lock the ground wire end and the conductor; the adjusting part is connected to the first locking part and is used to change the locking or unlocking state of the first locking part; The second locking portion is connected to the adjusting portion and is used to lock the adjusting portion.

2. A maintenance grounding wire terminal locking device according to claim 1, characterized in that: The first locking portion comprises two locking iron plates (1); an even number of first through holes (2) are provided on the two locking iron plates (1); and the first through holes (2) on the two locking iron plates (1) correspond to each other one by one.

3. A maintenance grounding wire terminal locking device according to claim 2, characterized in that: The adjusting portion comprises threaded rods (3), the number of which is consistent with the number of first through holes (2) on the locking iron plates (1); the threaded rods (3) pass through the corresponding first through holes (2) on the two locking iron plates (1) in sequence.

4. A maintenance grounding wire terminal locking device according to claim 3, characterized in that: The adjusting portion further comprises a locking ring (4); a locking ring (4) is provided at each end of the threaded rod (3); two second through holes (5) are provided in the radial direction of the locking ring (4), one of the second through holes (5) being a threaded hole; the locking ring (4) is connected to the threaded rod (3) through the threaded holes.

5. A maintenance grounding wire terminal locking device according to claim 4, characterized in that: The locking ring (4) is provided with a through hole (6) in the axial direction.

6. A maintenance grounding wire terminal locking device according to claim 4, characterized in that: Two third through holes (7) are also provided on the locking ring (4); a line connecting the two second through holes (5) and a line connecting the two third through holes (7) are perpendicular to each other.

7. A maintenance grounding wire terminal locking device according to claim 4, characterized in that: The second locking part is a padlock (8); the padlock (8) is used to lock the two locking rings (4) to restrict their rotation.

8. The terminal locking device for maintenance grounding wire according to claim 7, characterized in that: The number of the padlocks (8) is half the number of the locking rings (4).

9. A maintenance ground wire terminal locking device according to claim 6, characterized in that: Any one of the two third through holes (7) is a threaded hole.

10. A maintenance grounding wire terminal locking device according to claim 2, characterized in that: An even number of the first through holes (2) are evenly arranged on the locking iron plate (1) and away from the center of the locking iron plate (1).

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