Grounding auxiliary device

Abstract

The utility model provides a grounding auxiliary device, which comprises a first clamping part, a second clamping part and a hanging ring, one end of the first clamping part is connected with the hanging ring, the other end of the first clamping part is used for being buckled with one end of the second clamping part, and when the other end of the first clamping part is buckled with the second clamping part, the other end of the first clamping part is buckled with the hanging ring. The first clamping part and the second clamping part are enclosed to form a wire channel for a wire to pass through; one end of the second clamping part is provided with a wire channel, the other end of the second clamping part is provided with a locking mechanism, the locking mechanism is connected with the first clamping part, the locking mechanism can tightly press the second clamping part on the surface of a wire penetrating through the wire channel, and the hanging ring is used for being electrically connected with a grounding wire. According to the utility model, the installation is convenient and fast, the operation of electrically connecting the grounding device and the hanging ring is easier and more convenient during grounding operation, the operation of electrically connecting the grounding device and the wire is further greatly facilitated, the potential safety hazard of operation is reduced, and the connection is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of wire grounding devices, and particularly relates to a grounding auxiliary device. Background Technique

[0002] A substation refers to a place in the power system that transforms voltage and current, receives electric energy, and distributes electric energy. The "National Electric Power Safety Work Regulations" stipulate that reliable grounding must be ensured at both ends of the construction point during the maintenance and construction of power lines to ensure the safety of construction personnel. In order to better maintain the substation, corresponding grounding devices are usually required.

[0003] In the construction of substations, steel core aluminum stranded wires are used for PT, CT, lightning arresters, main transformer incoming and outgoing lines, outgoing intervals, etc. Since the above-mentioned wires usually slope downward or are almost perpendicular to the ground, it is not easy for maintenance personnel to effectively hang the grounding device with a grounding wire on the wire when installing the grounding wire during maintenance, resulting in difficult operation of hanging the grounding wire and certain potential safety hazards. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a grounding auxiliary device to solve the problem that the wires in the substation usually slope downward or are almost perpendicular to the ground, which makes it difficult for maintenance personnel to effectively hang the grounding device with a grounding wire on the wire when installing the grounding wire during maintenance, resulting in difficult operation of hanging the grounding wire and certain potential safety hazards.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A grounding auxiliary device described in the utility model includes a first clamping portion, a second clamping portion and a hanging ring. One end of the first clamping portion is connected to the hanging ring, and the other end is used for buckling with one end of the second clamping portion. When the other end of the first clamping portion is buckled with the second clamping portion, the first clamping portion and the second clamping portion enclose a wire channel for the wire to pass through;

[0007] The other end of the second clamping portion is provided with a locking mechanism, the locking mechanism is connected to the first clamping portion, the locking mechanism can tightly press the second clamping portion on the surface of the wire passing through the wire channel, and the hanging ring is used for electrically connecting with the grounding wire.

[0008] Preferably, the locking mechanism includes a bolt, and the bolt sequentially penetrates through the second clamping portion and the first clamping portion from one side of the second clamping portion, and is movably connected to the second clamping portion and threadedly connected to the first clamping portion.

[0009] Further preferably, the locking mechanism further includes a self-locking component which is sleeved on the threaded stud of the bolt and is used to restrict the reverse rotation of the bolt.

[0010] Further preferably, the self-locking component includes a self-locking spring which is sleeved on the threaded stud of the bolt, fits with the thread, has one end connected to the first clamping portion, and is provided with a lever at the other end.

[0011] Further preferably, the locking mechanism further includes a cushion block sleeved on the bolt. The second clamping portion is provided with a convex portion on the side facing the bolt head, and the outer contour of the cross-section of the convex portion is a smooth curve.

[0012] The cushion block is located between the bolt head and the convex portion, and the side of the cushion block facing the convex portion can be attached to the surface of the convex portion, and the side facing away from the convex portion is a plane parallel to the bolt head.

[0013] Preferably, the other end of the first clamping portion is provided with a buckle groove which has an opening. The second clamping portion is provided with a buckling rod which can be inserted into the buckle groove from the opening, and the buckle groove can hook and fix the buckling rod through the locking mechanism.

[0014] Further preferably, the second clamping portion is provided with an oblong inner through hole extending from one end to the other end.

[0015] The locking mechanism penetrates through the second clamping portion from the inner through hole, and the second clamping portion can rotate around the locking mechanism through the inner through hole and reciprocate along the extending direction of the inner through hole.

[0016] Preferably, the first clamping portion is provided with a first groove, and the hanging ring is connected to the first clamping portion in the first groove.

[0017] Further preferably, the hanging ring includes a first ring portion with a square cross-section. The first groove matches the first ring portion and has an opening. After the first ring portion is inserted into the first groove from the opening, it is welded to the first clamping portion.

[0018] And / or, the hanging ring includes a second ring portion with a circular cross-section, and the second ring portion is used for electrically connecting with a grounding wire.

[0019] Preferably, the first clamping portion and the second clamping portion are made of silicon-magnesium alloy material; and / or

[0020] The hanging ring is a solid ring and is made of high-strength rare earth aluminum alloy material; and / or

[0021] The sides of the first clamping part and the second clamping part facing the wire channel are concentric circular arcs; and / or,

[0022] The sides of the first clamping part and the second clamping part facing the wire channel are provided with teeth.

[0023] The beneficial effects of the grounding auxiliary device of the present invention compared with the prior art are mainly reflected in:

[0024] When the other end of the first clamping part of the present invention is buckled with the second clamping part, the first clamping part and the second clamping part can enclose to form a wire channel for the wire to pass through, and the second clamping part can be tightly pressed on the surface of the wire passing through the wire channel through the locking mechanism, so that the grounding auxiliary device of the present invention can be fixed on the wire, and the installation is convenient and fast; and the hanging ring is connected with the first clamping part, and the hanging ring is used for electrically connecting with the grounding wire. During the grounding operation, compared with directly electrically connecting a grounding device such as a grounding rod to an inclined wire, the operation of electrically connecting the grounding device to the hanging ring is easier and more convenient, which greatly facilitates the electrical connection operation between the grounding device and the wire, reduces the operation safety hazard, and the connection is more stable and reliable. It can effectively solve the problem that the wires in the substation are usually inclined downward or even almost perpendicular to the ground, resulting in difficulties for maintenance personnel to effectively hang the grounding device with the grounding wire on the wire during maintenance and installation of the grounding wire, leading to difficult grounding wire hanging operations and certain safety hazards. Description of the Drawings

[0025] More specifically illustrated by the preferred embodiments of the present invention shown in the drawings, the above and other objects, features and advantages of the present invention will become clearer. The same reference numerals in all the drawings indicate the same parts, and the drawings are not deliberately drawn to scale in actual size, and the emphasis is on showing the gist of the present invention.

[0026] Figure 1 Is a three-dimensional structure diagram of a grounding auxiliary device provided by an embodiment of the present invention (the state where the first clamping part and the second clamping part are not buckled);

[0027] Figure 2 Is a three-dimensional structure diagram of a grounding auxiliary device provided by an embodiment of the present invention (the state where the first clamping part and the second clamping part are buckled);

[0028] Figure 3 Is a schematic diagram of the use state of a grounding auxiliary device provided by an embodiment of the present invention;

[0029] Description of the drawings: The first clamping part 1, the second clamping part 2, the hanging ring 3, the first ring part 301, the second ring part 302, the locking mechanism 4, the bolt 401, the self-locking spring 402, the lever 403, the pin 404, the cushion block 405, the elastic gasket 406, the tooth 5, the wire 6, the buckle groove 7, the fastening rod 8, the inner through hole 9, the first groove 10, the convex part 11. Detailed implementation manners

[0030] The technical solution of the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it. However, the embodiments given are not intended to limit the present utility model. In this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element and integrated with it, or there may be an intermediate element at the same time. The terms "installation", "one end", "the other end" and similar expressions used in the present utility model are only for the purpose of illustration.

[0032] This embodiment provides a grounding auxiliary device, as Figures 1 to 3 shown, including a first clamping part 1, a second clamping part 2 and a hanging ring 3. One end of the first clamping part 1 is connected to the hanging ring 3, and the other end is used for buckling with one end of the second clamping part 2. When the other end of the first clamping part 1 is buckled with the second clamping part 2, the first clamping part 1 and the second clamping part 2 enclose a wire channel for the wire 6 to pass through;

[0033] The other end of the second clamping part 2 is provided with a locking mechanism 4. The locking mechanism 4 is connected to the first clamping part 1. The locking mechanism 4 can tightly press the second clamping part 2 on the surface of the wire 6 passing through the wire channel. The hanging ring 3 is used for electrically connecting with the grounding wire.

[0034] When the other end of the first clamping portion 1 of the present utility model is buckled with the second clamping portion 2, the first clamping portion 1 and the second clamping portion 2 can enclose to form a wire channel for the wire 6 to pass through, and the second clamping portion 2 can be tightly pressed on the surface of the wire 6 passing through the wire channel through the locking mechanism 4, so that the grounding auxiliary device of the present utility model can be fixed on the wire 6, and the installation is convenient and fast; and the hanging ring 3 is connected with the first clamping portion 1, and the hanging ring 3 is used for electrically connecting with the grounding wire. During the grounding operation, compared with directly electrically connecting a grounding device such as a grounding rod to the inclined wire 6, the operation of electrically connecting the grounding device to the hanging ring 3 is easier and more convenient, which greatly facilitates the electrical connection operation between the grounding device and the wire 6, reduces the operation safety hazard, and the connection is more stable and reliable. It can effectively solve the problem that the wires 6 in the substation are usually inclined downward or even almost perpendicular to the ground, resulting in difficulty for maintenance personnel to effectively hang the grounding device with the grounding wire on the wire 6 during maintenance and installation of the grounding wire, leading to difficult grounding wire hanging operation and certain safety hazards.

[0035] The product of the present utility model is applicable to wires 6 with a wire diameter between 800 mm 2 and 1200 mm 2 , with a wide application range, which can effectively reduce the types of product models and inventory.

[0036] In a preferred embodiment, the first clamping portion 1 and the second clamping portion 2 are made of silicon-magnesium alloy material. Since the wire 6 is usually an aluminum stranded wire, this embodiment can avoid the heating problem caused by the potential difference between copper and aluminum materials in the power industry due to the transition between these two materials. During the production process, the surfaces of the first clamping portion 1 and the second clamping portion 2 are subjected to two protection treatments, specifically, after surface sandblasting treatment, and then passivation and sealing treatment, so that it has excellent weather resistance and antioxidant performance;

[0037] The sides of the first clamping portion 1 and the second clamping portion 2 facing the wire channel are concentric circular arcs, which can increase the contact area with the wire 6 and the stress area of the wire 6, improve the clamping stability, and also play a protective role for the wire 6 to avoid concentrated stress; further, tooth scales 5 are provided on the sides of the first clamping portion 1 and the second clamping portion 2 facing the wire channel, which can increase the friction force of the contact surface between the wire 6 and the first clamping portion 1 and the second clamping portion 2, thereby improving the clamping stability.

[0038] In another preferred embodiment, the locking mechanism 4 includes a bolt 401, which passes through the second clamping part 2 and the first clamping part 1 in sequence from one side of the second clamping part 2, and is movably connected to the second clamping part 2 and threadedly connected to the first clamping part 1. The second clamping part 2 and the bolt 401 are movably connected, and during installation, the wire 6 can be easily entered into the wire channel. After the other end of the second clamping part 2 is buckled with one end of the first clamping part 1, the second clamping part 2 is pressed against the surface of the wire 6 and locked by the bolt 401, so that the first clamping part 1 and the second clamping part 2 can tightly embrace the wire 6, thereby fixing the grounding auxiliary device of this embodiment on the wire 6.

[0039] Furthermore, the locking mechanism 4 also includes a self-locking component, which is sleeved on the threaded stud of the bolt 401 to limit the reverse rotation of the bolt 401 to prevent it from loosening due to load changes, thermal expansion and contraction, or wind sway and vibration. Specifically, the self-locking component can be a self-locking structural member such as a self-locking nut and a self-locking spring 402. For example, the present embodiment uses a self-locking spring 402, such as Figure 1 As shown, the self-locking spring 402 is sleeved on the threaded stud of the bolt 401 and fits with the thread, and one end is connected to the first clamping part 1, and the other end is provided with a lever 403, so that the bolt 401 can rotate forward until the second clamping part 2 is tightly attached to the surface of the wire 6. When the bolt 401 rotates in the opposite direction, the self-locking spring 402 will generate a sufficiently large friction force on the thread surface to prevent the bolt 401 from rotating in the opposite direction, thereby achieving a self-locking function, ensuring the constant clamping force on the wire 6, and reducing the subsequent maintenance work; when it is necessary to replace, the self-locking spring 402 is partially separated from the thread surface by toggling the lever 403, thereby reducing the friction force on the bolt 401 when it rotates in the opposite direction, so that the bolt 401 can be rotated in the opposite direction, so that the second clamping part 2 is no longer pressed against the surface of the wire 6. At this time, the end of the second clamping part 2 is separated from the first clamping part 1, and the second clamping part 2 will rotate accordingly, and then the second clamping part 2 can be removed from the wire 6. Specifically in this embodiment, Figure 2 As shown, the connection between the self-locking spring 402 and the first clamping part 1 is formed by multiple bending to form four evenly arranged fixed ends, each fixed end is fixed by a pin 404 tightly embedded in the side of the first clamping part 1. In this embodiment, the self-locking spring 402 is fixed to the first clamping part 1, so that the two form a whole, which can improve the integrity of the product and avoid the inconvenience of installation due to the dispersion of structural parts.

[0040] Furthermore, the locking mechanism 4 further includes a pad 405 sleeved on the bolt 401, and the second clamping portion 2 is provided with a protrusion 11 on the side facing the head of the bolt 401, and the cross-sectional outer contour of the protrusion 11 is a smooth curve, preferably an arc line;

[0041] The spacer block 405 is located between the head of the bolt 401 and the convex part 11, and one side of the spacer block 405 facing the convex part 11 can be in contact with the surface of the convex part 11, and the side facing away from the convex part 11 is a plane parallel to the head of the bolt 401.

[0042] In this way, when dealing with wires 6 of various wire diameters, when the second clamping part 2 presents different angles axially relative to the bolt 401, it can always ensure that the head of the bolt 401 is parallel to the plane side of the spacer block 405 through the contact between the spacer block 405 and the surface of the convex part 11. Thus, when the head of the bolt 401 abuts against the second clamping part 2, the force on the bolt 401 is always on its axis. This can not only avoid the bolt 401 being bent and deformed due to shear force, but also improve the firmness and reliability of the device fastening. In this embodiment, an elastic gasket 406 is further arranged between the spacer block 405 and the head of the bolt 401 to further improve the stability of the bolt 401.

[0043] In another preferred embodiment, a buckle groove 7 is arranged at the other end of the first clamping part 1. The buckle groove 7 has an opening, and a buckle rod 8 is arranged on the second clamping part 2. The buckle rod 8 can be inserted into the buckle groove 7 from the opening, and the buckle groove 7 can hook and fix the buckle rod 8 through the locking mechanism 4. Further, the second clamping part 2 is provided with an oblong inner through hole 9 extending from one end to the other end; the locking mechanism 4 penetrates through the second clamping part 2 from the inner through hole 9, and the second clamping part 2 can rotate around the locking mechanism 4 through the inner through hole 9 and reciprocate along the extending direction of the inner through hole 9.

[0044] In this embodiment, the second clamping part 2 is movable relative to the locking mechanism 4. During installation, after the second clamping part 2 rotates, the first clamping part 1 can be in an open state, which is convenient for first attaching the first clamping part 1 to the wire 6 without being restricted by the wire diameter of the wire 6. When the end of the second clamping part 2 is buckled with the other end of the first clamping part 1, due to the arrangement of the inner through hole 9, the end of the second clamping part 2 can easily cross the buckle groove 7, so that the buckle rod 8 and the buckle groove 7 can be quickly buckled. Specifically for the bolt 401 in the above embodiment, the second clamping part 2 can move freely relative to the bolt 401 in its inner through hole 9, which can greatly facilitate the installation and disassembly operations.

[0045] In another preferred embodiment, the first clamping part 1 is provided with a first groove 10, and the hanging ring 3 is connected to the first clamping part 1 in the first groove 10. By arranging the first groove 10, the contact surface between the hanging ring 3 and the first clamping part 1 can be increased, which is beneficial to improving the fixing reliability.

[0046] Further, the hanging ring 3 includes a first ring portion 301 with a square cross-section. The first groove 10 is matched with the first ring portion 301 and provided with an opening. After the first ring portion 301 is inserted into the first groove 10 from the opening, it is welded to the first clamping portion 1. Through the cooperation of the square first ring portion 301 and the first groove 10, when fixing the hanging ring 3, the angle of the hanging ring 3 relative to the first clamping portion 1 can be fixed, so as to ensure the preset installation angle between the hanging ring 3 and the first clamping portion 1, which is beneficial to the stress state of the grounding auxiliary device during use.

[0047] The hanging ring 3 includes a second ring portion 302 with a circular cross-section. The second ring portion 302 is used for electrically connecting with the grounding wire. The second ring portion 302 can allow multi-angle connection with grounding devices such as grounding rods, facilitating on-site grounding operations; the hanging ring 3 is a solid ring, made of high-strength rare earth aluminum alloy material, having a high tensile strength, good over-current capacity and short-circuit melting resistance.

[0048] In this specification, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0049] In the description of this specification, the description with reference to terms such as "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. A grounding auxiliary device, characterized in that: The invention comprises a first clamping part, a second clamping part and a hanging ring, wherein one end of the first clamping part is connected to the hanging ring, and the other end is used to buckle with one end of the second clamping part, and when the other end of the first clamping part is buckled with the second clamping part, the first clamping part and the second clamping part enclose to form a wire channel for the wire to pass through; A locking mechanism is provided at the other end of the second clamping portion, and the locking mechanism is connected to the first clamping portion. The locking mechanism can press the second clamping portion tightly against the surface of the wire passing through the wire channel, and the hanging ring is used to be electrically connected to the ground wire.

2. A grounding auxiliary device according to claim 1, characterized in that: The locking mechanism includes a bolt, which passes through the second clamping part and the first clamping part in sequence from one side of the second clamping part, and is movably connected to the second clamping part and threadedly connected to the first clamping part.

3. A grounding auxiliary device according to claim 2, characterized in that: The locking mechanism also includes a self-locking component, which is sleeved on the threaded stud of the bolt and is used to limit the reverse rotation of the bolt.

4. A grounding auxiliary device according to claim 3, characterized in that: The self-locking assembly comprises a self-locking spring, which is sleeved on the threaded stud of the bolt and fits the thread, one end of which is connected to the first clamping part and the other end of which is provided with a lever.

5. A grounding auxiliary device according to any one of claims 2 to 4, characterized in that: The locking mechanism further comprises a pad sleeved on the bolt, the second clamping portion is provided with a protrusion on a side facing the bolt head, and the cross-sectional outer contour of the protrusion is a smooth curve; The pad is located between the bolt head and the protrusion, and a side of the pad facing the protrusion can be in contact with the surface of the protrusion, while a side facing away from the protrusion is a plane parallel to the bolt head.

6. A grounding auxiliary device according to claim 1, characterized in that: The other end of the first clamping part is provided with a buckle groove, and the buckle groove is provided with an opening. The second clamping part is provided with a buckle rod, and the buckle rod can be embedded in the buckle groove from the opening, and the buckle groove can hook and fix the buckle rod through the locking mechanism.

7. A grounding auxiliary device according to claim 6, characterized in that: The second clamping portion is provided with an oblong inner through hole extending from one end thereof to the other end; The locking mechanism passes through the second clamping portion from the inner through hole, and the second clamping portion can rotate around the locking mechanism through the inner through hole and reciprocate along the extending direction of the inner through hole.

8. The grounding auxiliary device according to claim 1, characterized in that: The first clamping portion is provided with a first groove, and the hanging ring is connected to the first clamping portion in the first groove.

9. A grounding auxiliary device according to claim 8, characterized in that: The hanging ring comprises a first ring portion with a square cross section, the first groove matches the first ring portion and is provided with an opening, and the first ring portion is welded to the first clamping portion after being inserted into the first groove through the opening; And / or, the hanging ring includes a second ring portion with a circular cross section, and the second ring portion is used for electrically connecting to the ground wire.

10. The grounding auxiliary device according to claim 1, characterized in that: The first clamping part and the second clamping part are made of silicon-magnesium alloy material; and / or, The hanging ring is a solid ring made of high-strength rare earth aluminum alloy; and / or, The first clamping portion and the second clamping portion have a concentric arc shape on one side facing the wire channel; and / or, The first clamping portion and the second clamping portion are provided with ruler teeth on one side facing the wire channel.

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