A connector for relay protection

Abstract

The utility model discloses a kind of connectors for relay protection, including fixed cylinder, connector, conducting core shaft, spring, clamping spring, the fixed cylinder is hollow two-end open type design, the front section of fixed cylinder is equipped with connector, fixed cylinder rear is equipped with conducting core shaft, conducting core shaft can move before and after along the axial direction of fixed cylinder, the rear end of conducting core shaft is equipped with screw-mounted spring, the end of spring is connected with clamping spring, the connector is equipped with multiple, multiple connector can form one similar multi-petal clamshell structure, connector includes fixed sheet, outer folding sheet, bevel sheet, fixed sheet is connected with bevel sheet through outer folding sheet, fixed sheet is connected with fixed cylinder, gap is left between two adjacent fixed sheets. The utility model design is reasonable;The structure of utilizing connector and conducting core shaft can realize quick installation, disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of power, and in particular relates to a connector for relay protection. Background Technology

[0002] Relay protection testing is a crucial step in ensuring the safe and stable operation of power systems. By simulating various fault conditions, the performance of relay protection devices (such as correctness, sensitivity, and speed of action) is tested to ensure that they can accurately and reliably isolate faults when they occur in the power system, thus preventing the accident from escalating. Existing relay protection testing often uses alligator clips for connection. However, the screws in alligator clips need to be frequently loosened and tightened, which can easily lead to screws coming loose. Summary of the Invention

[0003] The purpose of this utility model is to provide a connector for relay protection to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A connector for relay protection includes a fixed cylinder, a connector, a conductive spindle, a spring, and a retaining ring. The fixed cylinder is a hollow, open-end design. The connector is located at the front of the fixed cylinder, and the conductive spindle is located at the rear of the fixed cylinder. The conductive spindle can move forward and backward along the axial direction of the fixed cylinder. A spring with a screw is located at the rear end of the conductive spindle, and the end of the spring is connected to the retaining ring. Multiple connectors are provided, and multiple connectors can form a multi-lobed grab structure. The connector includes a fixed piece, an outer folded piece, and a beveled piece. The fixed piece is connected to the beveled piece via the outer folded piece and is connected to the fixed cylinder. A gap is left between two adjacent fixed pieces.

[0006] Preferably, the surface of the fixed cylinder is covered with insulating material.

[0007] Preferably, the included angle between the fixing piece and the outer folding piece is 135°, and the included angle between the outer folding piece and the bevel piece is 105°. The fixing piece, the outer folding piece, and the bevel piece are in a converged state under normal conditions.

[0008] Preferably, the conductive mandrel has an integrally formed protrusion at the middle position, a nylon insulating sleeve with a wall thickness of 1.5mm is pressed onto the outer wall of the conductive mandrel, and the whole is covered with a Shore A70 hardness TPE adhesive layer with a thickness greater than 1mm. The end of the conductive mandrel is connected to a 4mm banana socket connection test wire.

[0009] Compared with the prior art, the present invention has the following advantages: the present invention is reasonably designed; the spring and snap ring can make the conductive core shaft and the contact point make tight contact without loosening; after the conductive core shaft enters the connector, it can quickly fix the screw after opening the connector; the design of the outer fold can prevent loosening after fixing; at the same time, when disassembly is required, it is only necessary to press to separate the conductive core shaft from the connector, and the connector can quickly separate from the screw, which improves the efficiency of installation and disassembly, so that the screw does not need to be loosened frequently. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the connector for relay protection according to this utility model.

[0011] Figure 2 This is a front view of the connector for relay protection of this utility model being pressed in.

[0012] Figure 3 This is an exploded view of the connector for relay protection according to this utility model. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1-3 As shown, a relay protection connector includes a fixed cylinder 1, a connector 2, a conductive spindle 3, a spring 4, and a retaining ring 5. The fixed cylinder 1 is a hollow, open-end design. The connector 2 is located at the front of the fixed cylinder 1, and the conductive spindle 3 is located at the rear of the fixed cylinder 1. The conductive spindle 3 can move forward and backward along the axial direction of the fixed cylinder 1. The rear end of the conductive spindle 3 is equipped with a screw-mounted spring 4, the end of which is connected to the retaining ring 5. The spring and retaining ring are manually pressurized to move the conductive spindle along the fixed cylinder. Multiple connectors 2 are provided, and multiple connectors 2 can form a multi-lobed grab structure. The connector 2 includes a fixing plate 7, an outer folding plate 8, and a bevel plate 9. The fixing plate 7 is connected to the bevel plate 9 via the outer folding plate 8. When fixing, molybdenum disulfide grease can be applied to the bevel plate. The fixing plate 7 is connected to the fixing cylinder 1, and a gap is left between two adjacent fixing plates 7. The surface of the fixing cylinder 1 is covered with insulating material. The included angle between the fixing plate 7 and the outer folding plate 8 is 135°, and the included angle between the outer folding plate 8 and the bevel plate 9 is 105°. The fixing plate 7, the outer folding plate 8, and the bevel plate 9 are in a converged state under normal conditions. The conductive mandrel 3 has an integrally formed protrusion 6 in the middle position. The design of the protrusion prevents the conductive mandrel from sliding out of the fixing cylinder. The outer wall of the conductive mandrel 3 is press-fitted with a nylon insulating sleeve with a wall thickness of 1.5mm. The whole is covered with a Shore A70 hardness TPE adhesive layer with a thickness greater than 1mm. The end of the conductive mandrel 3 is connected to a 4mm banana plug test lead.

[0015] The working principle of this utility model is as follows: The device presses vertically against the terminal screw head. When the conductive spindle enters the connector, it opens the bevel plate at the connector. The screw head slides to the outer fold plate to lock. At the same time, the compression spring enters the fixed cylinder with the spring to complete the locking. When pulling out, press the snap ring and the spring. The spring rebounds and drives the conductive spindle to separate from the connector, which can then be disassembled.

[0016] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A connector for relay protection, comprising a fixed sleeve (1), a connector (2), a conductive spindle (3), a spring (4), and a retaining ring (5), characterized in that, The fixed cylinder (1) is a hollow, open-end design. The front section of the fixed cylinder (1) is provided with a connector (2), and the rear of the fixed cylinder (1) is provided with a conductive spindle (3). The conductive spindle (3) can move forward and backward along the axial direction of the fixed cylinder (1). The rear end of the conductive spindle (3) is provided with a screw-mounted spring (4). The end of the spring (4) is connected to a snap ring (5). There are multiple connectors (2). Multiple connectors (2) can form a structure similar to a multi-lobed grab. The connector (2) includes a fixed piece (7), an outer folding piece (8), and a bevel piece (9). The fixed piece (7) is connected to the bevel piece (9) through the outer folding piece (8). The fixed piece (7) is connected to the fixed cylinder (1). There is a gap between two adjacent fixed pieces (7).

2. The connector for relay protection according to claim 1, characterized in that, The surface of the fixed cylinder (1) is covered with insulating material.

3. A connector for relay protection according to claim 1, characterized in that, The included angle between the fixed piece (7) and the outer fold piece (8) is 135°, and the included angle between the outer fold piece (8) and the bevel piece (9) is 105°. The fixed piece (7), the outer fold piece (8), and the bevel piece (9) are in a contracted state under normal conditions.

4. A connector for relay protection according to claim 1, characterized in that, The conductive mandrel (3) has an integrally formed protrusion (6) in the middle position. The outer wall of the conductive mandrel (3) is press-fitted with a nylon insulating sleeve with a wall thickness of 1.5mm. The entire mandrel is covered with a Shore A70 hardness TPE adhesive layer with a thickness greater than 1mm. The end of the conductive mandrel (3) is connected to a 4mm banana socket connection test wire.

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