CN216956094U

CN216956094U - Power grid fault detection device

Info

Publication number: CN216956094U
Application number: CN202122166622.XU
Authority: CN
Inventors: 吴极; 周明; 徐敏; 张靖; 吴跃; 查伟伟
Original assignee: Information and Telecommunication Branch of State Grid Anhui Electric Power Co Ltd
Current assignee: Information and Telecommunication Branch of State Grid Anhui Electric Power Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-07-12
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to a fault detection device, in particular to a power grid fault detection device which comprises a box body, wherein a back plate is fixed on the box body, the back plate is fixed with one end of a strap, the other end of the strap is connected with the back plate through an adjusting mechanism, a wire fixing mechanism and a wire rewinding mechanism are fixedly arranged on the side surface of the box body, the wire fixing mechanism comprises an installation frame fixed with the box body through a connecting rod, a conductive seat fixed on the installation frame, a first rotating rod rotatably connected with the installation frame, a second moving block in threaded connection with the first rotating rod, and a pressing seat fixed with the second moving block and matched with the conductive seat; the technical scheme provided by the utility model can effectively overcome the defects that the body is inconvenient to carry, lacks a fastening mechanism aiming at the cable to be tested and is inconvenient to carry in the prior art.

Description

Power grid fault detection device

Technical Field

The utility model relates to a fault detection device, in particular to a power grid fault detection device.

Background

The distribution network is a network which receives electric energy from a transmission network or a regional power plant, distributes the electric energy to power networks of various users on site through distribution facilities or distributes the electric energy to the power networks step by step according to voltage, and plays an important role in distributing the electric energy in a power grid system. Distribution network structure is comparatively complicated, and the wiring form is various, and various branches are numerous, most distribute in the place that the population is comparatively concentrated, and operating condition is abominable relatively, and the trouble that causes by external factor or mechanical reason is more, so need detect the distribution network line with the help of trouble detection device.

The power cable fault detector is a special cable detection device for testing open-circuit, short-circuit, grounding, low-resistance, high-resistance flashover and high-resistance leakage faults of cables and open-circuit and short-circuit faults of coaxial communication cables and local cables.

The existing power cable fault detector is not convenient to carry, lacks a mechanism for fastening a cable to be detected, and is inconvenient to effectively detect the cable to be detected. In addition, under some detection occasions, need take part cable that awaits measuring back the laboratory and detect, but do not set up admission machine on the power cable fault detector and construct, inconvenient cable that awaits measuring of carrying.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects in the prior art, the utility model provides the power grid fault detection device which can effectively overcome the defects that a body is inconvenient to carry, a fastening mechanism aiming at a cable to be detected is lacked, and the cable to be detected is inconvenient to carry in the prior art.

(II) technical scheme

In order to realize the purpose, the utility model is realized by the following technical scheme:

a power grid fault detection device comprises a box body, wherein a back plate is fixed on the box body, the back plate is fixed with one end of a back belt, the other end of the back belt is connected with the back plate through an adjusting mechanism, and a wire fixing mechanism and a wire rewinding mechanism are fixedly mounted on the side surface of the box body;

the wire fixing mechanism comprises a mounting frame fixed with the box body through a connecting rod, a conductive seat fixed on the mounting frame, a first rotating rod rotatably connected with the mounting frame, a second moving block in threaded connection with the first rotating rod, and a pressing seat fixed with the second moving block and matched with the conductive seat;

the take-up mechanism comprises a mounting seat fixed on the side face of the box body, a shell clamped with the mounting seat, a mounting barrel fixed on the mounting seat, a guide pillar in sliding connection with the mounting barrel, a baffle disc fixed at the end part of the guide pillar, a groove formed in the inner wall of the shell, and a baffle connected with the inner wall of the groove through a first spring, wherein an inclined part is arranged on the baffle, and a limiting mechanism is arranged between the guide pillar and the mounting barrel.

Preferably, the limiting mechanism comprises a first accommodating cavity arranged in the mounting cylinder and in sliding fit with the guide pillar, a second accommodating cavity arranged on the side surface of the guide pillar, a clamping block connected with the inner wall of the second accommodating cavity through a third spring, and a limiting groove arranged on the inner wall of the first accommodating cavity and matched with the clamping block, and the end part of the clamping block is arc-shaped.

Preferably, a clamping groove matched with the shell is formed in the mounting seat, a clamping rod extending into the clamping groove is connected to the side face of the mounting seat in a sliding mode, a clamping hole matched with the clamping rod is formed in the shell, a mounting block is fixed to the end portion of the clamping rod, and a second spring is connected between the mounting block and the side wall of the mounting seat.

Preferably, the adjusting mechanism includes a mounting groove formed in the back plate, a second rotating rod rotatably connected to the back plate and disposed inside the mounting groove, and a first moving block threadedly connected to the second rotating rod and fixed to the other end of the strap, the first moving block is fixed with a first guide block, and a first vertical guide groove slidably engaged with the first guide block is formed in an inner wall of the mounting groove.

Preferably, a back pad is arranged on the back plate, and supporting legs are fixed at four corners of the back plate.

Preferably, a second guide block is fixed on the side surface of the second moving block, and a second vertical guide groove in sliding fit with the second guide block is formed in the inner wall of the mounting frame.

Preferably, a cable fault detector is arranged inside the box body and electrically connected with the conductive seat through a connecting wire wound outside the connecting rod.

Preferably, the box body is hinged with an upper cover, a buckle lock is installed between the box body and the upper cover, and a handle is fixedly installed on the side face of the box body.

(III) advantageous effects

Compared with the prior art, the power grid fault detection device provided by the utility model has the advantages that the vertical distance between the two ends of the straps can be adjusted by virtue of the adjusting mechanism, so that people with different body types can conveniently carry the box body, and the cable fault detector is convenient to carry; the cable to be detected can be fastened by using the wire fixing mechanism, so that the effective detection of the cable to be detected is realized; the winding mechanism is convenient for winding part of cables to be tested on the installation barrel and the guide pillar, and meanwhile, the baffle can press the wound cables to be tested under the action of the first spring to prevent the wound cables to be tested from being scattered.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the adjustment mechanism of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the case of FIG. 1 according to the present invention after being opened;

FIG. 4 is an enlarged schematic view of the wire take-up mechanism of FIG. 3 according to the present invention;

fig. 5 is a schematic view of the fitting structure of the guide post and the mounting barrel in fig. 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A power grid fault detection device is shown in figures 1 to 5 and comprises a box body 1, a back plate 3 is fixed on the box body 1, the back plate 3 is fixed with one end of a back belt 9, the other end of the back belt 9 is connected with the back plate 3 through an adjusting mechanism, and a wire fixing mechanism and a wire collecting mechanism are fixedly mounted on the side face of the box body 1.

The adjusting mechanism comprises a mounting groove 5 arranged on the back plate 3, a second rotating rod 6 which is rotatably connected with the back plate 3 and is arranged inside the mounting groove 5, and a first moving block 7 which is in threaded connection with the second rotating rod 6 and is fixed with the other end of the strap 9, wherein a first guide block 8 is fixed on the first moving block 7, and a first vertical guide groove which is in sliding fit with the first guide block 8 is arranged on the inner wall of the mounting groove 5.

When the vertical distance between the two ends of the braces 9 needs to be adjusted, the second rotating rod 6 is rotated, the first moving block 7 moves in the vertical direction under the action of the threads and the cooperation of the first guide block 8 and the first vertical guide groove, and the braces 9 are adjusted.

For a person with a fat body, the first moving block 7 can be moved upwards, so that the outer braces 9 can be stretched outwards; for a person of a smaller size, the first moving block 7 may be moved downwards to tighten the outer harness 9.

An upper cover 2 is hinged on the box body 1, a buckle lock is arranged between the box body 1 and the upper cover 2, and a handle is fixedly arranged on the side surface of the box body 1. The back plate 3 is provided with a back cushion 4, and supporting legs 10 are fixed at four corners of the back plate 3.

The supporting legs 10 are arranged to facilitate the lying of the box body 1, and after the lock catch is opened, the upper cover 2 is turned over, so that the cable fault detector inside the box body 1 can be used (as shown in fig. 3). Further, the case 1 may be carried by a handle.

The wire fixing mechanism comprises a mounting frame 12 fixed with the box body 1 through a connecting rod 11, a conductive seat 13 fixed on the mounting frame 12, a first rotating rod 14 rotatably connected with the mounting frame 12, a second moving block 15 in threaded connection with the first rotating rod 14, and a pressing seat 16 fixed with the second moving block 15 and matched with the conductive seat 13.

A second guide block is fixed on the side surface of the second moving block 15, and a second vertical guide groove in sliding fit with the second guide block is formed in the inner wall of the mounting frame 12.

When the cable to be tested needs to be tested, a section of the cable to be tested is taken and the surface skin of the cable to be tested is cut, the inner conductor of the cable to be tested is exposed, and the conductor is aligned to the conductive seat 13 to place the section of the cable to be tested. Rotating first bull stick 14, second movable block 15 moves down along vertical direction under the screw thread effect to and the cooperation of second guide block, the vertical guide slot of second, can fasten the cable that awaits measuring with the help of pressing seat 16, conducting seat 13, realizes the effective detection to the cable that awaits measuring.

The inside cable fault detector that is equipped with of box 1, cable fault detector are through winding in connecting wire 17 and the conductive seat 13 electric connection outside connecting rod 11. When in detection, one end of the cable to be detected is electrified, a current signal can enter the cable fault detector through the conductive seat 13 and the connecting wire 17, and the cable fault detector performs fault analysis on the cable to be detected.

The take-up mechanism comprises a mounting seat 19 fixed on the side face of the box body 1, a shell 18 clamped with the mounting seat 19, a mounting cylinder 23 fixed on the mounting seat 19, a guide pillar 24 connected with the mounting cylinder 23 in a sliding manner, a baffle disc 25 fixed at the end part of the guide pillar 24, a groove 30 arranged on the inner wall of the shell 18, and a baffle plate 31 connected with the inner wall of the groove 30 through a first spring, wherein an inclined part 32 is arranged on the baffle plate 31, and a limiting mechanism is arranged between the guide pillar 24 and the mounting cylinder 23.

The limiting mechanism comprises a first accommodating cavity 26 arranged inside the mounting barrel 23 and in sliding fit with the guide post 24, a second accommodating cavity 27 arranged on the side surface of the guide post 24, a clamping block 28 connected with the inner wall of the second accommodating cavity 27 through a third spring, and a limiting groove 29 arranged on the inner wall of the first accommodating cavity 26 and in fit with the clamping block 28, wherein the end part of the clamping block 28 is arc-shaped.

Offer on the mount pad 19 with casing 18 complex draw-in

groove

20, 19 side sliding connection of mount pad has the kelly 21 that stretches into the inside of draw-in groove 20, offer on the casing 18 with kelly 21 complex card hole, kelly 21 end fixing has the installation piece 22, is connected with the second spring between installation piece 22 and the 19 lateral walls of mount pad.

When a part of cables to be detected need to be brought back to a laboratory for detection, the cables to be detected with proper length are taken, and the relative positions between the guide pillar 24 and the mounting cylinder 23 are adjusted according to the length of the cables to be detected. When the relative position is adjusted, the guide post 24 is pulled or pushed directly through the baffle disc 25, and in the process of pulling or pushing the guide post 24, the end part of the clamping block 28 is arc-shaped, so that the clamping block can be taken in the second accommodating cavity 27 under the action of the limiting groove 29 and extend out when moving to the next limiting groove 29, and the guide post 24 is limited.

After the position of the guide post 24 is adjusted, the cable to be tested is wound on the installation barrel 23 and the guide post 24, the clamping rod 21 is pulled outwards by overcoming the elastic force of the second spring, the shell 18 is clamped into the clamping groove 20, the clamping rod 21 is loosened, the clamping rod 21 can be clamped into the clamping hole under the elastic force action of the second spring, and the shell 18 is fixed.

In the process of clamping the shell 18 into the clamping groove 20, the inclined part 32 on the baffle plate 31 and the outer edge of the wound cable to be tested act, so that the baffle plate 31 and the shell 18 can move continuously to one side of the mounting seat 19, and the outer edge of the wound cable to be tested is prevented from blocking the baffle plate 31. After the housing 18 is installed, the baffle 31 can press the wound cable to be tested under the action of the first spring, so that the wound cable to be tested is prevented from being scattered.

In the technical solution of the present application, the wire fixing mechanism on the left side in fig. 3 is located at the top of the box body in fig. 1 (the wire fixing mechanism is not shown in fig. 1), and the wire rewinding mechanism on the right side in fig. 3 is located at the bottom of the box body in fig. 1 (the wire rewinding mechanism is not shown in fig. 1), that is, the handle in fig. 1 is fixedly installed at the bottom of the box body in fig. 3 (the opened upper cover is not shown in fig. 3).

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A grid fault detection device is characterized in that: the box body (1) is fixed with a back plate (3), the back plate (3) is fixed with one end of a strap (9), the other end of the strap (9) is connected with the back plate (3) through an adjusting mechanism, and a wire fixing mechanism and a wire rewinding mechanism are fixedly mounted on the side face of the box body (1);

the wire fixing mechanism comprises a mounting frame (12) fixed with the box body (1) through a connecting rod (11), a conductive seat (13) fixed on the mounting frame (12), a first rotating rod (14) rotatably connected with the mounting frame (12), a second moving block (15) in threaded connection with the first rotating rod (14), and a pressing seat (16) fixed with the second moving block (15) and matched with the conductive seat (13);

the take-up mechanism comprises a mounting seat (19) fixed on the side face of the box body (1), a shell (18) clamped with the mounting seat (19), a mounting cylinder (23) fixed on the mounting seat (19), a guide post (24) connected with the mounting cylinder (23) in a sliding manner, a baffle disc (25) fixed at the end part of the guide post (24), a groove (30) formed in the inner wall of the shell (18), and a baffle plate (31) connected with the inner wall of the groove (30) through a first spring, wherein an inclined part (32) is arranged on the baffle plate (31), and a limiting mechanism is arranged between the guide post (24) and the mounting cylinder (23).

2. The grid fault detection device according to claim 1, wherein: the limiting mechanism comprises a first accommodating cavity (26) which is arranged inside the mounting barrel (23) and is in sliding fit with the guide post (24), a second accommodating cavity (27) which is arranged on the side surface of the guide post (24), a clamping block (28) which is connected with the inner wall of the second accommodating cavity (27) through a third spring, and a limiting groove (29) which is arranged on the inner wall of the first accommodating cavity (26) and is matched with the clamping block (28), wherein the end part of the clamping block (28) is arc-shaped.

3. The grid fault detection device according to claim 2, wherein: offer on mount pad (19) with casing (18) complex draw-in groove (20), mount pad (19) side sliding connection has the kelly (21) that stretch into draw-in groove (20) inside, offer on casing (18) with kelly (21) complex card hole, kelly (21) end fixing has installation piece (22), be connected with the second spring between installation piece (22) and mount pad (19) lateral wall.

4. The grid fault detection device according to claim 1, wherein: the adjusting mechanism comprises a mounting groove (5) formed in the back plate (3), a second rotating rod (6) rotatably connected with the back plate (3) and arranged inside the mounting groove (5), and a first moving block (7) in threaded connection with the second rotating rod (6) and fixed to the other end of the strap (9), a first guide block (8) is fixed to the first moving block (7), and a first vertical guide groove in sliding fit with the first guide block (8) is formed in the inner wall of the mounting groove (5).

5. The grid fault detection device according to claim 4, wherein: the back plate (3) is provided with a back pad (4), and supporting legs (10) are fixed at four corners of the back plate (3).

6. The grid fault detection device according to claim 1, wherein: a second guide block is fixed on the side surface of the second moving block (15), and a second vertical guide groove in sliding fit with the second guide block is formed in the inner wall of the mounting frame (12).

7. The grid fault detection device according to claim 1, wherein: the cable fault detector is arranged inside the box body (1) and is electrically connected with the conductive seat (13) through a connecting wire (17) wound outside the connecting rod (11).

8. The grid fault detection device according to claim 7, wherein: the box is characterized in that an upper cover (2) is hinged to the box body (1), a buckle lock is installed between the box body (1) and the upper cover (2), and a handle is fixedly installed on the side face of the box body (1).