Parallel groove clamp

Abstract

The utility model relates to electric power equipment technical field discloses a parallel groove wire clamp, including wire clamp insulation shell one and wire clamp insulation shell two and two mounting bolts, wire clamp insulation shell one and wire clamp insulation shell two's inside all install parallel groove metal clamp piece, wire clamp insulation shell one and wire clamp insulation shell two's outside all install metal sheet, two mounting bolts are arranged in wire clamp insulation shell one, wire clamp insulation shell two and two metal sheets and are penetrated, and the one end of mounting bolt is screwed with the clamping plate, and the side of clamping plate near metal sheet is provided with magnet block, in the utility model, when parallel groove wire clamp opens, magnet block can make clamping plate and wire clamp insulation shell two keep relative fixation, avoid shaking, thereby the stability of live working is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a parallel groove clamp. Background Technology

[0002] In power distribution network operations, insulated piercing clamps, insulated parallel groove clamps, and insulated grounding clamps are commonly used clamp types. Insulated piercing clamps are primarily used for insulated conductors, achieving electrical connection by piercing the conductor's insulation layer with a piercing blade. Insulated grounding clamps are used for temporary short-circuit grounding of de-energized equipment to ensure maintenance safety. In contrast, insulated parallel groove clamps are mainly used for connecting small- to medium-section aluminum stranded wire, steel-cored aluminum stranded wire, and overhead lightning protection wire stranded wire in positions not subject to tension. They can also be used for jumper connections on non-straight towers and are commonly used hardware in power line engineering.

[0003] Existing parallel groove clamps still have certain shortcomings in use. When the mounting bolts are loosened to their maximum angle, the insulating shell used to clamp the conductors is prone to vertical wobbling. In live-line working environments, this instability affects the efficiency of live-line connection work, increases the difficulty of operation, and poses certain safety hazards. Therefore, it is necessary to improve the parallel groove clamps to enhance their stability and installation efficiency in live-line work. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a parallel groove wire clamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A parallel groove wire clamp includes a first wire clamp insulating shell and a second wire clamp insulating shell and two mounting bolts. Parallel groove metal clips are installed inside both the first and second wire clamp insulating shells, and metal plates are installed on the outside of both the first and second wire clamp insulating shells. The two mounting bolts are inserted through the first wire clamp insulating shell, the second wire clamp insulating shell and the two metal plates. A clamping plate is screwed to one end of the mounting bolts. A magnet is provided on the side of the clamping plate near the metal plate for magnetic attraction with the metal plate.

[0007] Preferably, the side of the metal sheet closest to the clamping plate has an arc-shaped structure.

[0008] Preferably, the clamping plate has a mounting groove on the side near the metal sheet, and the magnet is installed in the mounting groove.

[0009] Preferably, the mounting bolt is fitted with a washer.

[0010] Preferably, the insulating outer shell of the wire clamp is provided with slots on both sides, and two insulating sleeves are provided in the middle of the slots.

[0011] Preferably, both insulating sleeves are located between the first insulating shell of the wire clamp and the second insulating shell of the wire clamp.

[0012] Preferably, the two mounting bolts are respectively installed through the two insulating sleeves.

[0013] Preferably, the two metal plates are mounted on the outside of the wire clamp insulating shell one and the wire clamp insulating shell two via a fixing block.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Magnetic-assisted positioning enhances stability: By setting mounting grooves on the clamp plate and embedding magnets, a magnetic attraction is formed between the magnets and the metal sheet. When the clamp is opened, the magnets keep the clamp plate and the clamp's insulating shell relatively fixed, preventing shaking and significantly improving the stability of live-line work.

[0016] 2. Differentiated magnetic design ensures reliable fit: The clamping plate and the magnet block are flatly fitted, while the metal sheet and the magnet block are curvedly fitted, making the magnet block more inclined to maintain a tight adsorption with the clamping plate, thus ensuring that the position of the magnet block on the clamping plate is firmly fixed when the clamping plate is separated from the insulating shell 2.

[0017] 3. Enhanced insulation and protection performance: Insulating sleeves are provided in the slots on both sides of the insulating shell, through which the mounting bolts pass. This not only improves the insulation performance, but also avoids direct compression and wear of the shell by the bolts, thereby enhancing the service life and safety of the device.

[0018] 4. Convenient installation and maintenance, improved efficiency: The metal plate is installed on the outside of the insulating shell through the fixing block, which facilitates the overall assembly and subsequent maintenance; at the same time, the magnetic attraction keeps the clamp open when installing the wire, making the operation more time-saving and labor-saving, greatly improving the efficiency of live work and reducing the labor intensity of construction personnel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the opening of the insulating outer shell 1 and the insulating outer shell 2 of the parallel groove clamp according to an embodiment of the present utility model;

[0020] Figure 2 This is a closed schematic diagram of a parallel groove wire clamp insulating shell one and a wire clamp insulating shell two proposed in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the tightening structure of a parallel groove wire clamp according to an embodiment of the present utility model;

[0022] Figure 4 This is a partial exploded structural diagram of a grooved wire clamp according to an embodiment of the present invention.

[0023] In the diagram: 1-Wire clamp insulating shell one, 2-Wire clamp insulating shell two, 3-Parallel groove metal clip, 4-Mounting bolt, 5-Washer, 6-Metal plate, 7-Clamping plate, 8-Insulating sleeve, 9-Fixing block, 10-Magnetic block, 11-Slot, 12-Mounting slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1 to 4 A parallel groove wire clamp includes a wire clamp insulating shell 1 and a wire clamp insulating shell 2 and two mounting bolts 4. Parallel groove metal clips 3 are installed inside the wire clamp insulating shell 1 and the wire clamp insulating shell 2, and metal plates 6 are installed on the outside of the wire clamp insulating shell 1 and the wire clamp insulating shell 2. The two mounting bolts 4 are inserted through the wire clamp insulating shell 1, the wire clamp insulating shell 2 and the two metal plates 6. A clamping plate 7 is screwed to one end of the mounting bolt 4. A magnet block 10 is provided on the side of the clamping plate 7 near the metal plate 6 to form a magnetic attraction with the metal plate 6, thereby enhancing the clamping stability.

[0026] In a preferred embodiment of this utility model, the mounting bolt 4 is a hexagonal bolt, which is convenient for construction workers to quickly tighten using a conventional wrench, resulting in high construction efficiency and stable and reliable tightening effect.

[0027] In a preferred embodiment of this utility model, the metal sheet 6 can be square, rectangular, circular, or other common structures to adapt to different installation requirements. Preferably, the metal sheet 6 is square.

[0028] In a preferred embodiment of the present invention, the clamping plate 7 has an installation groove 12 on the side near the metal sheet 6, and the magnet block 10 is installed in the installation groove 12. By opening the installation groove 12 on the clamping plate 7, the magnet block 10 can be reliably limited, avoiding displacement or falling off due to vibration or external force during long-term use.

[0029] As a preferred embodiment of this utility model, the side of the metal sheet 6 near the clamping plate 7 has an arc surface structure. When the arc surface comes into contact with the magnet block 10, it forms a curved surface fit, making the force more uniform during the magnetic attraction process, and can generate a certain self-centering effect in the clamping state to prevent displacement.

[0030] In a preferred embodiment of this utility model, the inner wall of the mounting groove 12 and the surface in contact with the magnet block 10 are uniformly planar, thereby increasing the contact area between the magnet block 10 and the mounting groove 12, improving the embedding stability and pull-out resistance, and preventing loosening or falling off due to external vibration or thermal expansion and contraction during long-term operation. The surface in contact with the metal sheet 6 is planar, ensuring that the magnet block 10 and the metal sheet 6 form a curved surface fit when in contact, that is, ensuring that the magnetic attraction between the magnet block 10 and the clamp 7 is greater than the magnetic attraction between the magnet block 10 and the metal sheet 6. This differential magnetic attraction setting allows the magnet block 10 to preferentially maintain a tight adsorption with the clamp 7 when the wire clamp insulation shell 2 is separated from the clamp 7. When the wire clamp insulation shell 1 and the wire clamp insulation shell 2 are separated, the wire clamp insulation shell 2 and the clamp 7 are magnetically attracted together under the action of the magnet block 10 and will not easily shift, which facilitates the installation of wires.

[0031] In a preferred embodiment of this utility model, a washer 5 is fitted onto the mounting bolt 4 to enhance the uniformity of force distribution during the tightening process and prevent loosening or structural deformation due to long-term stress. Preferably, the washer 5 is a butterfly spring washer, which has elastic recovery properties and can automatically compensate for the tightening force of the mounting bolt 4 when subjected to vibration or temperature changes, thereby effectively preventing loosening and improving the stability and reliability of the parallel groove clamp during operation.

[0032] In a preferred embodiment of this utility model, slots 11 are provided on both sides of the wire clamp insulating shell 1. Two insulating sleeves 8 are provided in the middle of the slots 11, and the two insulating sleeves 8 are located between the wire clamp insulating shell 1 and the wire clamp insulating shell 2. Two mounting bolts 4 are respectively inserted into the two insulating sleeves 8. The insulating sleeves 8 form an insulating isolation layer between the mounting bolts 4 and the insulating shell of the wire, which not only improves the insulation performance of the overall device, but also avoids direct compression or wear of the insulating shell of the wire by the mounting bolts 4 during tightening, thereby extending the service life of the product. At the same time, the insulating sleeves 8 also play a guiding and positioning role, keeping the mounting bolts 4 vertical and stable during insertion, preventing uneven tightening due to deviation, and ensuring the overall structural stability and safety of the parallel groove wire clamp.

[0033] In a preferred embodiment of this utility model, two metal pieces 6 are mounted on the outside of the wire clamp insulating shell 1 and the wire clamp insulating shell 2 via fixing blocks 9. The fixing blocks 9 serve to position and limit the metal pieces 6, ensuring they stably conform to the surfaces of the wire clamp insulating shell 1 and the wire clamp insulating shell 2, thus preventing displacement of the metal pieces 6 during installation or long-term operation. The fixing blocks 9 also facilitate the assembly and maintenance of the wire clamp. Since the metal pieces 6 are fixed to the outside of the insulating shell, disassembly or replacement does not require damage to the overall structure of the insulating shell, thereby improving maintenance convenience and the reusability of the product.

[0034] The working principle of this utility model is as follows: During packaging and transportation, the insulating outer shell 1 and the insulating outer shell 2 of the wire clamp are in a closed state. The two metal plates 6 are fixed to the outside of the insulating outer shell of the wire clamp by the fixing block 9. After the mounting bolt 4 is tightened, the clamp plate 7 is driven to stick together with the metal plates 6, thereby maintaining the stability of the overall structure (e.g., Figure 3 (As shown).

[0035] When needed, loosen the mounting bolt 4 to its maximum extent, at which point the bottom of the bolt is approximately flush with the clamping plate 7. Since the surface of the clamping plate 7 that contacts the magnet 10 is flat, while the surface of the metal sheet 6 that contacts the magnet 10 is curved, the magnetic attraction between the magnet 10 and the clamping plate 7 is greater than the magnetic attraction between the magnet 10 and the metal sheet 6. When the wire clamp's insulating outer shell 2 separates from the clamping plate 7, the magnet 10 can preferentially adhere to the clamping plate 7 (e.g., ...). Figure 2 As shown in the figure, when the parallel groove clamp is opened, the magnet block 10 can keep the clamp plate 7 and the clamp insulation shell 2 relatively fixed, avoiding shaking, thereby significantly improving the stability of live work.

[0036] With the assistance of the aforementioned magnetic attraction, the operator can easily separate the insulating outer shell 1 and the insulating outer shell 2 of the wire clamp, keeping them open for easy installation of the conductors. After the main conductor and branch conductor are placed into the parallel groove metal clips 3, the mounting bolts 4 are tightened. Driven by the bolts, the clamp 7 moves the insulating outer shell 2 of the wire clamp towards the insulating outer shell 1 of the wire clamp, and the parallel groove metal clips 3 gradually press the conductors together until they are tightly fitted. When the mounting bolts 4 break, it indicates that the designed tightening torque has been reached, and the entire installation process is complete.

[0037] Based on this working principle, it can be seen that when the parallel groove clamp is loosened, it can maintain the relative positioning of the outer shell and the clamp plate by relying on magnetic force, thus avoiding the shaking problem before installation; during the tightening process, the bolt force transmission and the metal clamp contact are relied on to achieve a stable connection of the wires, thereby taking into account both installation efficiency and operational reliability.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A parallel groove clamp, characterized in that, The device includes a first insulating shell (1) and a second insulating shell (2) of a wire clamp and two mounting bolts (4). The first insulating shell (1) and the second insulating shell (2) of the wire clamp are both equipped with grooved metal clips (3). The first insulating shell (1) and the second insulating shell (2) of the wire clamp are both equipped with metal plates (6). The two mounting bolts (4) are installed through the first insulating shell (1), the second insulating shell (2) of the wire clamp and the two metal plates (6). One end of the mounting bolt (4) is screwed with a clamping plate (7). A magnet (10) is provided on the side of the clamping plate (7) near the metal plate (6) for magnetic attraction with the metal plate (6).

2. A parallel groove clamp according to claim 1, characterized in that, The metal sheet (6) has an arc-shaped structure on the side near the clamping plate (7).

3. A parallel groove clamp according to claim 2, characterized in that, The clamping plate (7) has an installation groove (12) on the side near the metal sheet (6), and the magnet block (10) is installed in the installation groove (12).

4. A parallel groove clamp according to claim 1, characterized in that, A washer (5) is fitted onto the mounting bolt (4).

5. A parallel groove clamp according to claim 1, characterized in that, The insulating outer shell of the clamp (1) has slots (11) on both sides, and two insulating sleeves (8) are provided in the middle of the slots (11).

6. A parallel groove clamp according to claim 5, characterized in that, Both insulating sleeves (8) are located between the first insulating shell of the clamp (1) and the second insulating shell of the clamp (2).

7. A parallel groove clamp according to claim 5, characterized in that, Two mounting bolts (4) are respectively installed through the two insulating sleeves (8).

8. A parallel groove clamp according to claim 1, characterized in that, Two metal plates (6) are mounted on the outside of the wire clamp insulating shell one (1) and the wire clamp insulating shell two (2) by means of a fixing block (9).

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