Novel low-voltage grounding wire clamp suitable for being used in narrow space

Abstract

The invention discloses a novel low-voltage grounding wire clamp suitable for being used in a narrow space, the novel low-voltage grounding wire clamp comprises a clamping mechanism and a supporting mechanism, the clamping mechanism comprises a clamping groove, the top of the clamping groove is fixedly connected with a conductive plate, and the bottom of the clamping groove is slidably connected with an extrusion block; the supporting mechanism comprises a supporting frame, the supporting frame is fixedly connected to the bottom of the clamping groove, and adjusting bolts used for adjusting the extrusion block are arranged on the two sides of the supporting frame; placing grooves are formed in the two sides of the supporting frame, cover plates are arranged at openings of the placing grooves, auxiliary fixing devices are arranged in the placing grooves and comprise auxiliary clamping grooves, and extension rods are hinged between the auxiliary clamping grooves and the placing grooves; a wiring frame is installed at the bottom of the supporting frame and connected with the conductive plate through a wire, and the wire is arranged in the clamping groove and the supporting frame. The wire clamp is clamped on the copper bar through the clamping groove, then the auxiliary fixing devices on the two sides are adjusted, the auxiliary clamping grooves are fixed to the two sides of the clamping groove, the whole wire clamp is of a triangular structure, stability is high, the situation that the wire clamp falls off is not prone to occurring, and maintenance work is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance equipment, in particular to a novel low-voltage grounding wire clamp suitable for use in narrow spaces. Background Art

[0002] During the power operation and emergency repair and maintenance process, since the low-voltage distribution cabinet is filled with various switches, circuit breakers, connecting copper bars and other equipment, the space for hanging the grounding wire is narrow and the grounding wire can only be clamped at the terminal and other parts. The pliers-type wire clamps currently used in work have a V-shaped jaw opening with the grounding wire hanging at the back. The wire clamps with this structure only rely on the clamping force of the spring to clamp on the terminal. When the grounding wire is disturbed by vibration or wind, the wire clamp may collapse, resulting in repeated handling of the detached grounding wire clamps during work, which not only poses a safety hazard but also affects the emergency repair operation time. Summary of the Invention

[0003] The purpose of the present invention is to provide a new type of low-voltage grounding wire clamp suitable for use in narrow spaces. The wire clamp is clamped on the copper busbar through a slot, and then the auxiliary fixing devices on both sides are adjusted to fix the auxiliary slots on both sides of the slot. The wire clamp has an overall triangular structure with strong stability. It is not easy for the wire clamp to fall off, and it does not affect maintenance work.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a new type of low-voltage grounding wire clamp suitable for use in narrow spaces, including a clamping mechanism and a supporting mechanism, the clamping mechanism including a card slot, the top of the card slot is fixedly connected to a conductive plate, and the bottom of the card slot is slidably connected to an extrusion block; the supporting mechanism includes a support frame, the support frame is fixedly connected to the bottom of the card slot, and adjustment bolts for adjusting the extrusion block are provided on both sides of the support frame; placement slots are opened on both sides of the support frame, a cover plate is provided at the opening of the placement slot, and an auxiliary fixing device is provided in the placement slot, the auxiliary fixing device includes an auxiliary card slot, and an extension rod is hinged between the auxiliary card slot and the placement slot; a wiring frame is installed at the bottom of the support frame, and the wiring frame and the conductive plate are connected by wires, and the wires are provided inside the card slot and the support frame.

[0005] Optionally, a slide is provided at the bottom of the slot, the extrusion block is slidably connected in the slide, and the bottom of the extrusion block is fixedly connected to the limiting plate; an adjustment threaded hole is provided through the top of the support frame, the adjustment threaded hole is connected to the slide, the adjustment bolt is threadedly connected in the adjustment threaded hole, and the end of the adjustment bolt is fixedly connected with a conical adjustment head.

[0006] Optionally, a top screw is installed at the top of the auxiliary slot, and the extension rod includes a first screw, a second screw and an extension sleeve. The first screw is hinged at the bottom of the auxiliary slot, and the second screw is hinged at the bottom of the placement slot. The thread rotation directions of the first screw and the second screw are opposite, and the extension sleeve is threadedly connected between the first screw and the second screw.

[0007] Optionally, a ground wire connector is hingedly connected to the bottom of the wiring frame.

[0008] Optionally, a buffer layer is provided on top of the extrusion block.

[0009] The novel low-voltage grounding clamp of the present invention, which is suitable for use in narrow spaces, has the following advantages: (1) First place the card slot on the copper busbar, adjust the bolts to make the extrusion block press the copper busbar tightly, and make the conductive plate fit tightly against the copper busbar. Then take the auxiliary card slot out of the placement slot, and adjust the position of the auxiliary card slot by extending the rod so that it is clamped on the copper busbars on both sides. The wire clamp is triangular in shape, with high stability and not easy to fall off.

[0010] (2) When the wire clamp is set horizontally, the ground wire connector can adjust the direction of the ground wire so that it droops naturally, preventing the ground wire from bending at a large angle, and thus protecting the ground wire.

[0011] (3) The buffer layer can improve the connection tightness between the card slot and the copper busbar, avoiding poor contact between the conductive plate and the copper busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the present invention.

[0013] Figure 2 It is a side view of the present invention.

[0014] Figure 3 It is a schematic diagram of the use state of the present invention.

[0015] Figure 4 This is a schematic diagram of the wiring arrangement.

[0016] Figure 5 It is a structural diagram of the clamping mechanism. DETAILED DESCRIPTION

[0017] The present invention is further described below with reference to the accompanying drawings. In the description of the present invention, terms such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0018] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0019] like Figure 1-Figure 5As shown, a new low-voltage grounding wire clamp suitable for use in narrow spaces includes a clamping mechanism and a supporting mechanism. The clamping mechanism includes a slot 1, a conductive plate 2 is fixedly connected to the top of the slot 1, a slide 3 is provided at the bottom of the slot 1, an extrusion block 4 is slidably connected in the slide 3, and a limiting plate 5 is fixedly connected to the bottom of the extrusion block 4 to prevent the extrusion block 4 from falling off from the slide 3. A buffer layer 6 is provided on the top of the extrusion block 4, and the buffer layer 6 is made of rubber to improve the tightness of the connection between the slot 1 and the copper bus 22.

[0020] The support mechanism includes a support frame 7, which is fixedly connected to the bottom of the card slot 1. The top of the support frame 7 is penetrated by an adjustment threaded hole 8, which is connected to the slide 3. The adjustment threaded hole 8 is internally threaded with an adjustment bolt 9 for adjusting the extrusion block 4. The end of the adjustment bolt 9 is fixedly connected to a conical adjustment head 10, which fits the bottom of the limit plate 5. When the adjustment bolt 9 is rotated to move into the adjustment threaded hole 8, the adjustment head 10 pushes the extrusion block 4 upward, so that the extrusion block 4 fits the copper bus 22. When the adjustment bolt 9 is rotated to move out of the adjustment threaded hole 8, the extrusion block 4 falls along the slide 3, and the extrusion block 4 is separated from the copper bus 22.

[0021] A placement slot 11 is provided on both sides of the support frame 7. A cover plate 12 is provided at the opening of the placement slot 11. An auxiliary fixing device is provided in the placement slot 11. The auxiliary fixing device includes an auxiliary slot 13. A top screw 14 is installed on the top of the auxiliary slot 13. The top screw 14 can fix the auxiliary slot 13 on the copper bus 22. An extension rod 15 is hinged between the auxiliary slot 13 and the placement slot 11. The extension rod 15 includes a first screw rod 16, a second screw rod 17 and an extension sleeve 18. The first screw rod 16 is hinged at the bottom of the auxiliary slot 13, and the second screw rod 17 is hinged at the bottom of the placement slot 11. The thread rotation directions of the first screw rod 16 and the second screw rod 17 are opposite. The extension sleeve 18 is threadedly connected between the first screw rod 16 and the second screw rod 17. By rotating the extension sleeve 18, the length of the extension rod 15 can be adjusted so that the auxiliary slot 13 is stably fixed on the copper bus 22.

[0022] A wiring frame 19 is installed at the bottom of the support frame 7, and a ground wire connector 20 is hinged at the bottom of the wiring frame 19. The ground wire is connected to the ground wire connector 20. The wiring frame 19 is connected to the conductive plate 2 through a wire 21. The wire 21 is set inside the card slot 1 and the support frame 7.

[0023] First, place the card slot 1 on the copper busbar 22, then turn the adjustment bolt so that the extrusion block 4 is tightly against the bottom of the copper busbar 22 and the top of the copper busbar 22 is tightly fitted with the conductive plate 2. Then remove the cover plate 12 and remove the auxiliary card slots 13 on both sides from the placement slot 11. Turn the extension sleeve 18 to adjust the length of the extension rod 15, place the auxiliary card slots 13 on the copper busbar 22 on both sides of the card slot 1, and then use the top screw 14 to fix it. The overall triangular structure of the wire clamp is highly stable and will not fall off, ensuring the normal progress of maintenance work. When the wire clamp needs to be set horizontally, the ground wire connector 20 can be rotated downward to adjust the direction of the ground wire so that the ground wire droops naturally and will not bend or break at a large angle.

[0024] The embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A new type of low-voltage grounding clamp suitable for use in small spaces, characterized by: It includes a clamping mechanism and a supporting mechanism. The clamping mechanism includes a card slot, the top of the card slot is fixedly connected to a conductive plate, and the bottom of the card slot is slidably connected to an extrusion block; the supporting mechanism includes a support frame, the support frame is fixedly connected to the bottom of the card slot, and adjustment bolts for adjusting the extrusion block are arranged on both sides of the support frame; placement slots are opened on both sides of the support frame, a cover plate is arranged at the opening of the placement slot, an auxiliary fixing device is arranged in the placement slot, the auxiliary fixing device includes an auxiliary card slot, and an extension rod is hinged between the auxiliary card slot and the placement slot; a wiring frame is installed at the bottom of the support frame, and the wiring frame and the conductive plate are connected by wires, and the wires are arranged inside the card slot and the support frame.

2. The novel low-voltage grounding clamp suitable for use in narrow spaces as claimed in claim 1 is characterized by: A slide is provided at the bottom of the slot, the extrusion block is slidably connected in the slide, and the bottom of the extrusion block is fixedly connected to the limit plate; an adjustment threaded hole is provided through the top of the support frame, the adjustment threaded hole is connected to the slide, the adjustment bolt is threadedly connected in the adjustment threaded hole, and the end of the adjustment bolt is fixedly connected with a conical adjustment head.

3. The novel low-voltage grounding clamp suitable for use in narrow spaces as claimed in claim 1 is characterized by: A top screw is installed at the top of the auxiliary slot, and the extension rod includes a first screw, a second screw and an extension sleeve. The first screw is hinged at the bottom of the auxiliary slot, and the second screw is hinged at the bottom of the placement slot. The thread rotation directions of the first screw and the second screw are opposite, and the extension sleeve is threadedly connected between the first screw and the second screw.

4. The novel low-voltage grounding clamp suitable for use in narrow spaces as claimed in claim 1 is characterized by: A ground wire connector is hinged at the bottom of the wiring rack.

5. The novel low-voltage grounding clamp suitable for use in narrow spaces as claimed in claim 1 is characterized by: A buffer layer is provided on the top of the extrusion block.

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