CN217085162U

CN217085162U - Fault positioning device of power distribution network

Info

Publication number: CN217085162U
Application number: CN202220767077.1U
Authority: CN
Inventors: 周亚涛; 徐英健; 陶勇
Original assignee: Kunming Electric Power Design Institute Co ltd
Current assignee: Kunming Electric Power Design Institute Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-29
Anticipated expiration: 2032-04-01

Abstract

The utility model discloses a fault positioning device of a power distribution network, which comprises a mounting component and a driving component, wherein the mounting component comprises a support frame and a support table, and the driving component comprises a motor and a wheel hub; the support frame is erected on the cable, the mid-mounting of support frame has first flexible spacing collar, the flexible spacing collar of second, first flexible spacing collar, the flexible spacing collar of second are all established on the cable, a supporting bench installs respectively the back both ends of support frame, the motor is installed the bottom of a supporting bench, wheel hub installs the top of a supporting bench, wheel hub's outside is surrounded there is the friction pulley cover. The utility model discloses in, the device structure is light small and exquisite, can establish on the cable via the firm cover of installation component, and difficult high altitude falls, and safe and reliable still can slide along the cable under drive assembly's power orders about and marchs or the back, until seeking and find the cable fault point, high-efficient practical.

Description

Fault positioning device of power distribution network

Technical Field

The utility model relates to a power equipment technical field, specifically speaking relate to a fault location device of distribution network.

Background

With the increasing influence of the world in China, the scientific and technological economic level of China is rapidly developed, and power cables are erected in more and more places in China. Whether the high-voltage cable or the low-voltage cable is used, line faults are often caused by short circuit, overload operation, insulation aging or external force action and the like in the process of construction, installation or operation and use.

In the prior art, the cable fault finding method includes a sound measuring method, a bridge method, a capacitance current measuring method, a zero potential method and a pulse reflection method. If the cable that erects in the high altitude breaks down in a line, especially relate to the cable that erects among the barren mountain area ridge that the people is rare, not only the investigation detection work is loaded down with trivial details and has the safety risk, and the fault point location is difficult moreover, is not convenient for staff's follow-up pursuit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a fault location device of safe efficient distribution network is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme: the fault locating device of the power distribution network comprises a mounting assembly and a driving assembly, wherein the mounting assembly comprises a supporting frame and a supporting table, and the driving assembly comprises a motor and a wheel hub;

the support frame is erected on the cable, the mid-mounting of support frame has first flexible spacing collar, the front of first flexible spacing collar is via the flexible spacing collar of connecting rod fixedly connected with second, first flexible spacing collar, the flexible spacing collar of second are all established on the cable, a supporting bench installs respectively the back both ends of support frame, the motor is installed prop up supporting bench's bottom, wheel hub installs prop up supporting bench's top, and with the output shaft of motor links to each other, just wheel hub's outside encirclement has the friction pulley cover.

Furthermore, the support frame and the support table are made of insulating materials, the support frame is of a Y-shaped structure, and the driving assemblies are provided with two groups and are respectively arranged at two ends of the back face of the top of the support frame and clamped on two sides of the cable.

Further, drive assembly still includes mounting disc and protective housing, the output shaft of motor is fixed with the connection axle center, the connection axle center passes the brace table upwards explores, the mounting disc is installed the top surface of brace table, the mounting disc is equipped with the axle sleeve between two parties, the axle sleeve cover is established the outside in connection axle center, wheel hub passes the axle sleeve sets up on the mounting disc, and with it is fixed continuous to connect the axle center, protective housing's cross-section semicircular structure to the cover is established wheel hub's outside, protective housing installs on the brace table, and the opening is inboard towards, and the cable clamp is established two between the friction pulley cover.

Furthermore, two demountable installation has the cleaning sheet between the top of protection housing, the cleaning sheet adopts wear-resisting durable toughness material to be the domes and paste and establish on the cable.

Furthermore, the first flexible limiting ring, the connecting rod and the second flexible limiting ring are made of insulating materials, and the first flexible limiting ring and the second flexible limiting ring are respectively provided with a notch.

Further, still include the determine module, the determine module includes pulse reflection module and audible-visual annunciator, the back of pulse reflection module is fixed with the installation axle, the pin joint hole has been seted up to the bottom of support frame, the installation axle peg graft install extremely in the pin joint hole, audible-visual annunciator installs the front of pulse reflection module.

The beneficial effects of the utility model are embodied in:

the utility model discloses in, the device structure is light small and exquisite, can establish on the cable via the firm cover of installation component, and difficult high altitude falls, and safe and reliable still can slide along the cable under drive assembly's power orders about and marchs or the back, until seeking and find the cable fault point, high-efficient practical.

Drawings

Fig. 1 is an isometric view of the overall structure of an embodiment of the present invention.

Fig. 2 is a schematic view illustrating the mounting assembly and the driving assembly according to an embodiment of the present invention.

Fig. 3 is a schematic view of the overall structure of the detecting assembly according to an embodiment of the present invention.

The components in the drawings are labeled as follows: 1. mounting the component; 2. a drive assembly; 3. a detection component; 4. a support frame; 5. a pivot hole; 6. a first flexible spacing collar; 7. a connecting rod; 8. a second flexible spacing collar; 9. a notch; 10. a support table; 11. a motor; 12. connecting the axes; 13. a shaft sleeve; 14. mounting a disc; 15. a hub; 16. a friction wheel sleeve; 17. a protective housing; 18. a cleaning sheet; 19. a pulse reflection module; 20. an audible and visual alarm; 21. and (4) installing a shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-3.

The utility model relates to a fault positioning device of a power distribution network, which comprises a mounting component 1 and a driving component 2, wherein the mounting component 1 comprises a support frame 4 and a support table 10, and the driving component 2 comprises a motor 11 and a wheel hub 15;

the utility model discloses a cable, including support frame 4, flexible spacing collar 6, connecting rod 7 fixedly connected with second flexible spacing collar 8, first flexible spacing collar 6, the flexible spacing collar 8 of second all overlap and establish on the cable, brace table 10 installs respectively the back both ends of support frame 4, motor 11 installs brace table 10's bottom, wheel hub 15 installs brace table 10's top, and with motor 11's output shaft links to each other, just wheel hub 15's outside is enclosed there is friction pulley cover 16.

In an embodiment, the supporting frame 4 and the supporting table 10 are made of insulating materials, the supporting frame 4 is in a Y-shaped structure, and the two driving assemblies 2 are respectively installed at two ends of the back surface of the top of the supporting frame 4 and clamped at two sides of the cable. By the design, the supporting frame 4 is supported at the bottom of the cable and provides a platform for installing the driving assemblies 2, the cable is clamped between the two groups of driving assemblies 2, and when the driving assemblies 2 are started, the device is driven to slide back and forth along the cable to find a fault point of the cable.

In an embodiment, the driving assembly 2 further includes a mounting disc 14 and a protective cover 17, the output shaft of the motor 11 is fixed with a connection axis 12, the connection axis 12 passes through the supporting table 10 and protrudes upwards, the mounting disc 14 is installed on the top surface of the supporting table 10, a shaft sleeve 13 is arranged in the mounting disc 14, the shaft sleeve 13 is sleeved outside the connection axis 12, the hub 15 passes through the shaft sleeve 13 and is arranged on the mounting disc 14 and fixedly connected with the connection axis 12, the section of the protective cover 17 is of a semicircular structure and covers the hub 15, the protective cover 17 is installed on the supporting table 10, the opening faces the inner side, and the cable is clamped between the two friction wheel sleeves 16. The design like this, motor 11 starts the back, but corotation or reversal drive wheel hub 15 rotates, two wheel hub 15 presss from both sides and establishes the both sides at the cable, realizes advancing or retreating along the device, the line power is grabbed in the reinforcing of friction pulley cover 16, prevents to skid the idle running, the mounting disc 14 is kept apart wheel hub 15 and supporting bench 10 avoid scraping and rubbing wearing and tearing, protective housing 17 does drive assembly 2 provides the safety cover that hides the wind and rain, keeps off the ash and hide the sand, increases life.

In one embodiment, a cleaning sheet 18 is detachably mounted between the top ends of the two protective casings 17, and the cleaning sheet 18 is made of wear-resistant and durable flexible material and is attached to the cable in an arch structure. By adopting the design, when the device slides along the cable, the cleaning sheet 18 can clean dust on the surface of the cable, and is convenient to replace.

In an embodiment, the first flexible limiting ring 6, the connecting rod 7 and the second flexible limiting ring 8 are made of an insulating material, and the first flexible limiting ring 6 and the second flexible limiting ring 8 are respectively provided with a notch 9. By the design, the first flexible limiting ring 6 and the second flexible limiting ring 8 have flexibility and elasticity, and can be broken off and clamped outside the cable along the gap 9, so that the device is firmly sleeved on the cable, high-altitude falling is avoided, and the device is safe and reliable.

In an embodiment, the detecting device further comprises a detecting component 3, the detecting component 3 comprises a pulse reflecting module 19 and an audible and visual alarm 20, a mounting shaft 21 is fixed on the back of the pulse reflecting module 19, a pivot hole 5 is formed in the bottom of the supporting frame 4, the mounting shaft 21 is inserted into the pivot hole 5, and the audible and visual alarm 20 is mounted on the front of the pulse reflecting module 19. Design like this, when the device slides along the cable front and back, accessible remote end smart machine opens pulse reflection module 19, pulse reflection module 19 is to cable transmission high voltage pulse or low voltage pulse, and when the insulation resistance of cable fault point was less than the characteristic impedance of this cable, low voltage pulse response was received and is reflected extremely audible-visual annunciator 20, and in the same way, when the insulation resistance of cable fault point was greater than the characteristic impedance of this cable, high voltage pulse response was received and is reflected extremely audible-visual annunciator 20, audible-visual annunciator 20 sends striking audible-visual alarm in the high altitude, and the staff of being convenient for tracks the location, resets and stops promptly.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The utility model provides a fault locating device of distribution network which characterized in that: the device comprises a mounting assembly (1) and a driving assembly (2), wherein the mounting assembly (1) comprises a supporting frame (4) and a supporting table (10), and the driving assembly (2) comprises a motor (11) and a hub (15);

the utility model discloses a cable, including support frame (4), the flexible spacing collar of connecting rod (7), first flexible spacing collar (6) are erect on the cable to the mid-mounting of support frame (4), the front of first flexible spacing collar (6) is via the flexible spacing collar of connecting rod (7) second (8), first flexible spacing collar (6), the flexible spacing collar of second (8) all overlap and establish on the cable, install respectively brace table (10) the back both ends of support frame (4), install motor (11) the bottom of brace table (10), install wheel hub (15) the top of brace table (10), and with the output shaft of motor (11) links to each other, just the outside encirclement of wheel hub (15) has friction pulley cover (16).

2. A fault location device for an electrical distribution network according to claim 1, wherein: support frame (4) and brace table (10) all adopt insulating material, support frame (4) are Y style of calligraphy structure, drive assembly (2) have two sets ofly, install respectively the both ends at support frame (4) top back to the centre gripping is in the both sides of cable.

3. A fault location device for an electrical distribution network according to claim 2, wherein: the drive assembly (2) further comprises a mounting disc (14) and a protective casing (17), a connecting shaft center (12) is fixed on an output shaft of the motor (11), the connecting shaft center (12) penetrates through the support table (10) and extends upwards, the mounting disc (14) is mounted on the top surface of the support table (10), a shaft sleeve (13) is arranged in the center of the mounting disc (14), the shaft sleeve (13) is sleeved outside the connecting shaft center (12), the hub (15) penetrates through the shaft sleeve (13) and is arranged on the mounting disc (14), and is fixedly connected with the connecting shaft center (12), the section of the protective cover shell (17) is in a semicircular structure, and is covered outside the hub (15), the protective cover shell (17) is arranged on the supporting platform (10), and the opening faces the inner side, and the cable is clamped between the two friction wheel sleeves (16).

4. A fault localization arrangement for an electrical distribution network as claimed in claim 3 wherein: two demountable installation has cleaning sheet (18) between the top of protection housing (17), cleaning sheet (18) adopt wear-resisting durable toughness material to be the domes and establish on the cable.

5. A fault location device for an electrical distribution network according to claim 1, wherein: the first flexible limiting ring (6), the connecting rod (7) and the second flexible limiting ring (8) are made of insulating materials, and notches (9) are formed in the first flexible limiting ring (6) and the second flexible limiting ring (8) respectively.

6. A fault location device for an electrical distribution network according to claim 2, wherein: still include determine module (3), determine module (3) include pulse reflection module (19) and audible-visual annunciator (20), the back of pulse reflection module (19) is fixed with installation axle (21), pin joint hole (5) have been seted up to the bottom of support frame (4), installation axle (21) are pegged graft and are installed extremely in pin joint hole (5), audible-visual annunciator (20) are installed the front of pulse reflection module (19).