Power distribution network line single-phase earth fault positioning box

Abstract

The utility model discloses a power distribution network line single-phase earth fault positioning box, which relates to the technical field of power distribution network cable fault detection, and comprises a box body, a placing groove, a power distribution network cable, a power distribution network cable and a power distribution network cable, one end of the placing plate is rotationally arranged at the upper end of the placing groove; the supporting unit is arranged between the other end of the placing plate and the lower end of the placing groove; the two groups of pressing units are symmetrically arranged on the placement plate, and the placement plate is matched with the pressing units, so that a connecting wire at a wire clamp end and a connecting wire at a detection end can be fixed, the situation that the wire clamp and the connecting wire are loosened due to external factors is avoided, and potential safety hazards are avoided; and meanwhile, through the arrangement of the supporting unit, the placement plate can be stored and supported, so that the problem that the box body is inconvenient to use and carry due to the arrangement of the placement plate in the box body is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to single -phase grounding fault detection technical field, concretely is a kind of distribution network line single -phase grounding fault positioning box. BACKGROUND

[0002] In the long-term use process of cable in distribution network, due to external factors, short circuit or poor contact can occur at cable connection, and a section of cable can be damaged due to construction factors, etc., resulting in cable failure. Since the length of the cable is generally long, it is very troublesome to locate the fault position by excavation, so it is necessary to locate the fault position of the cable failure to quickly solve the problem.

[0003] The positioning box for solving the fault positioning currently generally consists of a distance measuring host, a high-voltage pulse generator and related accessories such as fault positioning. When distance measurement is achieved by low-voltage pulse, the wiring holes on the positioning box are connected by connecting wires through wire clamps clamped on the fault phase and the normal phase respectively. The fault position is determined by comparing the data of the fault phase and the normal phase.

[0004] However, when the wire clamps are clamped on the fault phase and the normal phase, the wiring at the connection of the wire clamps is directly placed on the ground, which can cause a great safety hazard. For example, the connecting wire can be easily lifted during operation, causing the wire clamp to loosen or even fall off, resulting in inaccurate measurement and electric shock. This problem is particularly serious when the ground is wet after rain, and it can easily cause harm to personnel in the event of an electric shock. Therefore, we designed a fault positioning box.

[0005] The above content is only used to assist in understanding the technical scheme of the utility model and does not mean that the above content is the closest prior art. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a distribution network line single -phase grounding fault positioning box to solve the problem that when the wire clamps are clamped on the fault phase and the normal phase, the wiring at the connection of the wire clamps is directly placed on the ground, which can cause a great safety hazard.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a distribution network line single -phase grounding fault positioning box, comprising a box body, further comprising:

[0008] A placing groove is arranged on one side of the box body.

[0009] A placing plate is rotatably arranged at the upper end of the placing groove.

[0010] A supporting unit is arranged between the other end of the placing plate and the lower end of the placing groove to support the placing groove after it is unfolded.

[0011] Two groups of pressing units are symmetrically arranged on the placing plate and used for pressing and fixing the connection wires of the box and the connection wires for fault test.

[0012] Preferably, the pressing unit comprises:

[0013] A pressing frame is fixedly arranged on the placing plate.

[0014] A pressing strip is slidably arranged on the pressing frame.

[0015] A one-way limiting piece is arranged at the sliding connection between the two ends of the pressing strip and the pressing frame and is used for one-way limiting the downward sliding of the pressing strip.

[0016] Preferably, the pressing strip is wrapped with a single flexible sleeve.

[0017] Preferably, the one-way limiting piece comprises:

[0018] A triangular block is limitingly and slidably arranged at the end of the pressing strip.

[0019] A plurality of clamping grooves are uniformly arranged on the pressing frame and are used for clamping the triangular block.

[0020] A limiting spring is arranged on the pressing strip and located at the position of the triangular block and is used for providing the elastic force for the outward sliding of the triangular block.

[0021] Preferably, the supporting unit comprises:

[0022] Two groups of sliding grooves are arranged on the two sides of the placing plate.

[0023] An elastic telescopic rod is slidably arranged in the sliding groove through a sliding shaft arranged at one end and is rotatably arranged at the lower end of the placing groove at the other end.

[0024] Preferably, an elastic clamping button is arranged at the position of the lower end of the placing groove and is used for limiting and fixing the placing plate folded and placed in the placing groove.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] Through the arrangement of the placing plate and the pressing unit, the connection wires of the wire clamp end and the connection wires of the detection end can be fixed, so that the situation that the wire clamp and the connection wires are loosened due to external factors is avoided, and the emergence of safety hazards is avoided. Meanwhile, through the arrangement of the supporting unit, the placing plate can be stored and supported, so that the problem of inconvenient use and carrying of the box caused by the arrangement of the placing plate is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a whole structure schematic view of the utility model.

[0028] Figure 2 It is the partial sectional view of the box support unit of the utility model;

[0029] Figure 3 It is the partial sectional view of the pressing unit of the utility model;

[0030] Figure 4 It is Figure 1 The enlarged view of A in the middle.

[0031] The figure mark: 1-box; 2-placing groove; 21-elastic button; 3-support unit; 31-slotted; 32-elastic telescopic rod; 4-pressing unit; 41-pressing frame; 42-pressing strip; 421-flexible sleeve; 43-single-phase limiting piece; 431-triangle block; 432-clamping groove; 433-limiting spring; 5-placing plate. Specific implementation

[0032] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0033] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a distribution network line single-phase grounding fault positioning box, including box 1, still include:

[0034] Placing groove 2 is arranged in one side of the box 1;

[0035] Placing plate 5 is rotatably arranged on the upper end of the placing groove 2;

[0036] Support unit 3 is arranged between the other end of the placing plate 5 and the lower end of the placing groove 2, for supporting after the placing groove 2 is unfolded;

[0037] Two groups of pressing units 4 are symmetrically arranged on the placing plate 5, for pressing and fixing the wiring led out by the box 1 and the wiring for fault test, in actual use process, the wiring end led out by the box 1 can be provided with wire clamp to clamp the wiring end for fault test to realize electrical connection.

[0038] Among them, the pressing unit 4 includes:

[0039] Pressing frame 41 is fixedly arranged on the placing plate 5;

[0040] Pressing strip 42 is slidably arranged on the pressing frame 41;

[0041] One-way limiting member 43 is provided at both ends of the pressing strip 42 and the sliding connection of the pressing frame 41, and is used to unidirectionally slide the pressing strip 42 downward.

[0042] In addition, the pressing strip 42 is wrapped with a flexible sleeve 421, which can be a soft material such as a rubber sleeve or sponge, to prevent the pressing strip 42 from pressing the wires and causing damage to the wires.

[0043] The one-way limiting member 43 includes:

[0044] Triangular block 431 is slidably positioned at the end of the pressing strip 42;

[0045] Multiple slots 432 are evenly arranged on the pressing frame 41 for the triangular block 431 to be inserted;

[0046] A limiting spring 433 is disposed on the pressing strip 42 and located at the position of the triangular block 431, and is used to provide the elastic force for the triangular block 431 to slide outward;

[0047] like Figure 4 As shown, after placing the wiring on the placement plate 5, press down on the pressing strip 42. The pressing strip 42 will slide down on the pressing frame 41 to press and fix the wiring. During the downward sliding of the pressing strip 42, due to the shape characteristics of the triangular block 431, under the action of its cooperation with the limiting spring 433, the pressing strip 42 can only slide downward, thereby pressing and fixing the wiring on the placement plate 5. At the same time, flexible material can also be set on the placement plate 5 directly below the pressing strip 42 to protect the wiring. After being supported by the support unit 3, the placement plate 5 will form a placement platform, which can be used for fault location detection outdoors. This avoids the wiring connection being placed directly on the ground, which may cause accidental stepping or leakage at the wiring due to the wet ground after rain. At the same time, pressing the wiring prevents workers from lifting the wiring, which could cause the wiring connection to break and result in electric shock.

[0048] Meanwhile, the support unit 3 includes:

[0049] Two sets of sliding grooves 31 are provided on both sides of the placement plate 5;

[0050] The elastic telescopic rod 32 has one end that slides within the sliding groove 31 via a sliding shaft, and the other end that is rotatably positioned at the lower end of the placement groove 2.

[0051] Finally, an elastic latch 21 is provided at the lower end of the placement slot 2 to limit and fix the placement plate 5 folded and placed in the placement slot 2.

[0052] When wiring, such asFigure 2 As shown, the placement plate 5 is opened, when opened, the elastic clamping button 21 can be first slid downward to make the placement plate 5 disengage from the limiting position, and then the lower end of the placement plate 5 is pulled to rotate outward by an angle, at this time the compressed elastic telescopic rod 32 will be opened to support the placement plate 5 to a vertical angle with the box body 1, the vertical angle is due to the placement plate 5 is set, the rotation point is located in the placement slot 2, the upper end of the placement slot 2 will limit the maximum rotation angle of the placement plate 5, thereby forming a vertical angle, when storage, after removing the wiring, then press the placement slot 2 to rotate the placement plate 5, in the process, the elastic telescopic rod 32 will shrink, the spring inside will be compressed, in the process of the placement plate 5 entering the placement slot 2 to be vertical, the end of the elastic telescopic rod 32 in the sliding groove 31 will slide in the sliding groove 31, to the vertical state to abut on the sliding groove 31, thereby to the vertical state more stable, at the same time, the setting of the sliding groove 31 can make the elastic telescopic rod 32 have a storable length, because the elastic telescopic rod 32 realizes support is the hypotenuse of the triangle support, so its length is greater than the length of the placement plate 5 and the placement slot 2, so it needs to be stored, in addition to the effect of its own telescopic, it also needs to have a minimum distance when the elastic telescopic rod 32 is compressed, the distance is that the sliding groove 31 and the spring telescopic rod end can slide in the sliding groove 31 to realize.

Claims

1. A single-phase ground fault location box for a power distribution network line, comprising a box body (1), characterized in that, Also includes: A placement slot (2) is provided on one side of the box body (1); The placement plate (5) is rotatably mounted at one end on the upper end of the placement groove (2); A support unit (3) is disposed between the other end of the placement plate (5) and the lower end of the placement groove (2) for supporting the placement groove (2) after it is unfolded. Two sets of pressing units (4) are symmetrically arranged on the placement plate (5) for pressing and fixing the wiring led out from the box (1) and the wiring for fault testing.

2. The single-phase grounding fault location box for a power distribution network line according to claim 1, characterized in that, The pressing unit (4) includes: The pressing frame (41) is fixedly installed on the placement plate (5); The pressing strip (42) is slidably disposed on the pressing frame (41); A one-way limiting member (43) is provided at both ends of the pressing strip (42) and the sliding connection of the pressing frame (41) for one-way downward sliding of the pressing strip (42).

3. A single-phase grounding fault location box for a power distribution network line according to claim 2, characterized in that, The pressing strip (42) is wrapped with a flexible sleeve (421).

4. A single-phase grounding fault location box for a power distribution network line according to claim 2, characterized in that, The one-way limiting member (43) includes: The triangular block (431) is slidably positioned at the end of the pressing strip (42); Multiple slots (432) are evenly arranged on the pressing frame (41) for the triangular block (431) to be inserted; A limiting spring (433) is disposed on the pressing bar (42) and located at the position of the triangular block (431) to provide elastic force for the triangular block (431) to slide outward.

5. A single-phase grounding fault location box for a power distribution network line according to claim 1, characterized in that, The support unit (3) includes: Two sets of sliding grooves (31) are provided on both sides of the placement plate (5); The elastic telescopic rod (32) has one end that slides in the slide groove (31) via a sliding shaft, and the other end that is rotatably set at the lower end of the placement groove (2).

6. A single-phase grounding fault location box for a power distribution network line according to claim 1, characterized in that, An elastic latch (21) is provided at the lower end of the placement slot (2) to limit and fix the placement plate (5) folded and placed in the placement slot (2).

Images