CN217212923U

CN217212923U - Frequency-selecting voltage and current detector for grounding impedance of ground network

Info

Publication number: CN217212923U
Application number: CN202220773450.4U
Authority: CN
Inventors: 杨家逵; 何洪云; 罗军辉; 冉嘉序; 王荣森; 严建功; 赵德伟; 韦光跃
Original assignee: China Energy Construction Group Yunnan Thermal Power Construction Co ltd
Current assignee: China Energy Construction Group Yunnan Thermal Power Construction Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-16
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to a frequency-selecting voltage current detector technical field for ground net ground impedance, in particular to a frequency-selecting voltage current detector for ground net ground impedance, which comprises a detector body, a box cover, a winding component, a shell, a cover plate, a wire clamping column, a wire column rotating component, a rocking handle, a hollow groove, a first bearing, a wire groove, a rocking handle connecting column, a clamping groove, a clamping block and a second bearing; the utility model discloses contain the rolling subassembly, when the card terminal of rolling subassembly rotated, can accomodate the connecting wire in the casing, the device both made things convenient for the storage of the supporting connecting wire of detector body under the effect of rolling subassembly, also made things convenient for the orderly arrangement of connecting wire, avoided the connecting wire to twine when using and tie a knot and be difficult to the emergence of the condition of combing, was favorable to using widely.

Description

Frequency-selecting voltage and current detector for grounding impedance of ground network

Technical Field

The utility model relates to a ground net ground connection impedance specifically is a ground net ground connection impedance is with frequency-selecting voltage current detector technical field.

Background

The grounding grid is a general name of a grounding body which is formed by a plurality of metal grounding electrodes buried in the ground at a certain depth and a net structure formed by connecting the grounding electrodes by conductors, and is widely applied to the power industry, plays the roles of safety protection, shielding and the like, the false welding and the missing welding in the construction process of the grounding grid can also change the electrical disconnection structure of the grounding grid in the operation process, thus leading to the change of grounding characteristic parameters of the grounding grid and easily leading to the overvoltage of a secondary circuit of a transformer substation, the safety of secondary equipment is seriously threatened, and personal safety accidents can be caused by unqualified step voltage and contact potential in the station, so the accurate detection of the characteristic parameters of the grounding grid is the safety guarantee of personnel and equipment, when the grounding grid is detected, a frequency-selecting voltage and current detector is needed to measure the current and the voltage in the grounding grid, when the detector is used, the detector is connected with a power supply and a detected object by matching with a connecting wire with a connecting terminal;

current voltage current detector generally all puts in a box in order to conveniently carry, but does not place the place of connecting wire, and the connecting wire needs to be deposited alone, accomodates the arrangement time to the connecting wire, makes the connecting wire winding knot very easily, is unfavorable for next use, exists certain not enoughly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ground net ground connection is frequency-selecting voltage current detector for impedance reaches the purpose of making things convenient for the orderly arrangement of connecting wire through setting up the rolling subassembly.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ground net ground connection impedance is with frequency-selective voltage current detector, includes the detector body, the detector body sets up in the box, it has the case lid to articulate on the box, the case lid internal fixation is provided with the rolling subassembly that is used for the rolling of connecting wire, the rolling subassembly includes casing, apron, card terminal and terminal runner assembly, casing fixed connection is at the inner wall of case lid roof, install card terminal through the vertical rotation of first bearing in the casing, fixed mounting has the apron on the casing, the apron passes through the mounting screw on the casing, be provided with on the apron and be used for card terminal pivoted terminal runner assembly, the quantity of the card terminal that sets up in the casing is two at least, and the solitary of many connecting wires of being convenient for accomodates, vertically offers the wire casing that is used for the connecting wire to place on the card terminal, the placing of the connecting wire of being convenient for.

Preferably, the terminal runner assembly includes rocking handle spliced pole, draw-in groove, fixture block and second bearing, the draw-in groove rotates through the installation on the apron through the second bearing, the one end fixedly connected with of rocking handle spliced pole and the fixture block of wire casing adaptation, the back is installed on the casing to the apron, and the fixture block joint is in the wire casing of card terminal.

Preferably, a clamping groove is formed in one end face, far away from the clamping block, of the rocking handle connecting column, and a rocking handle used for rotation of the rocking handle connecting column is clamped in the clamping groove.

Preferably, the hollow-out groove has all been seted up at the both ends of casing, be provided with the arc fastener that is used for connecting wire connecting terminal card post in the casing, be convenient for block the binding post at connecting wire both ends, unreel of connecting wire when being favorable to using.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses contain the rolling subassembly, when the card terminal of rolling subassembly rotated, can accomodate the connecting wire in the casing, the device both made things convenient for the storage of the supporting connecting wire of detector body under the effect of rolling subassembly, also made things convenient for the orderly arrangement of connecting wire, avoided the connecting wire to twine when using and tie a knot and be difficult to the emergence of the condition of combing, was favorable to using widely.

Drawings

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

FIG. 2 is an exploded view of the winding assembly of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the wire column rotating assembly of the present invention.

In the figure: 1. a detector body; 2. a box cover; 3. a winding component; 31. a housing; 32. a cover plate; 33. clamping a wire column; 34. a wire column rotating assembly; 35. a rocking handle; 36. hollowing out the grooves; 37. a first bearing; 38. a wire slot; 341. a rocking handle connecting column; 342. a card slot; 343. a clamping block; 344. a second bearing.

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. Based on the embodiments in the present invention, all other embodiments obtained by the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a frequency-selecting voltage and current detector for ground connection impedance of a ground network comprises a detector body 1, wherein the detector body 1 comprises a power socket, a power switch, a safety ground pole, a USB interface, a voltage wiring socket, a current wiring socket, a liquid crystal screen, a liquid crystal contrast adjusting knob, a printer, a reset button and a rotary mouse, the detector body 1 is arranged in a box body, a box cover 2 is hinged on the box body, a winding component 3 for winding a connecting wire is fixedly arranged in the box cover 2, the winding component 3 comprises a shell 31, a cover plate 32, a wire clamping pole 33 and a wire pole rotating component 34, the shell 31 is fixedly connected to the inner wall of a top plate of the box cover 2, the wire clamping pole 33 is vertically and rotatably arranged in the shell 31 through a first bearing 37, the cover plate 32 is fixedly arranged on the shell 31, and the cover plate 32 is arranged on the shell 31 through screws, be provided with on the apron 32 and be used for calorie post 33 pivoted terminal rotating assembly 34, the quantity of the card post 33 that sets up in casing 31 is two at least, and the solitary accomodating of many connecting wires of being convenient for, and the vertical wire casing 38 that is used for the connecting wire to place of offering on the card post 33, the placing of the connecting wire of being convenient for.

Further, the wire post rotating assembly 34 includes a rocking handle connecting post 341, a clamping groove 342, a clamping block 343 and a second bearing 344, the clamping groove 342 is rotatably installed on the cover plate 32 through the second bearing 344, one end of the rocking handle connecting post 341 is fixedly connected with the clamping block 343 adapted to the wire groove 38, and after the cover plate 32 is installed on the housing 31, the clamping block 343 is clamped in the wire groove 38 of the wire post 33.

Furthermore, a clamping groove 342 is formed in one end face, away from the clamping block 343, of the rocking handle connecting column 341, a rocking handle 35 for rotation of the rocking handle connecting column 341 is clamped in the clamping groove 342, and a placing box for placing the rocking handle 35 is arranged on the detector body 1.

Further, the hollowed-out grooves are formed in the two ends of the shell 31, arc-shaped clamping pieces used for clamping the connecting terminal of the connecting line are arranged in the shell 31, the connecting terminals at the two ends of the connecting line are convenient to block, and the connecting line is convenient to unreel when in use.

The working process of the utility model is as follows:

as shown in fig. 1-4, before the device is used, the middle part of the connection line is clamped in the slot 38 of the wire clamping column 33 in advance, then the cover plate 32 is fixed, then the rocking handle 35 is clamped in the clamping slot 342 of the wire clamping column rotating assembly 34, when the rocking handle 35 is rotated, because the rocking handle connecting column 341 is rotatably installed on the cover plate 32 through the second bearing 344, the clamping block 343 at the bottom end of the rocking handle connecting column 341 is clamped in the slot 38 of the wire clamping column 33, the wire clamping column 33 is rotatably connected through the first bearing 37, the wire clamping column 33 is rotated when the rocking handle 35 is rotated, the connection line is wound on the wire clamping column 33 when the wire clamping column 33 is rotated, when the device is used for ground grid ground impedance measurement, the device is connected with a test power supply and a measured object by using the connection line with connecting terminals, at this time, both ends of the connection line are pulled by hand slightly, the connection line can be unreeled from the wire clamping column 33, after the detection is completed, the rocking handle 35 is clamped in the clamping groove 342 of the string rotating assembly 34, so that the string clamping column 33 rotates to wind the connecting wire, the device is arranged under the effect of the winding assembly 3, the storage of the connecting wire matched with the detector body 1 is facilitated, the arrangement of the connecting wire is also facilitated, the phenomenon that the connecting wire is wound and knotted when in use and is difficult to comb is avoided, and the popularization and the use are facilitated.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a frequency-selecting voltage and current detector for ground net ground impedance, includes the detector body, its characterized in that: the detector body sets up in the box, it has the case lid to articulate on the box, the case lid internal fixation is provided with the rolling subassembly that is used for the rolling of connecting wire, the rolling subassembly includes casing, apron, card terminal and terminal rotation subassembly, casing fixed connection is at the inner wall of case lid roof, install card terminal through the vertical rotation of first bearing in the casing, fixed mounting has the apron on the casing, be provided with on the apron and be used for card terminal pivoted terminal rotation subassembly.

2. The frequency-selective voltage/current detector according to claim 1, wherein: and a wire groove for placing a connecting wire is vertically formed in the wire clamping column.

3. The frequency-selective voltage/current detector according to claim 2, wherein: the terminal runner assembly includes rocking handle spliced pole, draw-in groove, fixture block and second bearing, the draw-in groove rotates through the installation on the apron through the second bearing, the one end fixedly connected with of rocking handle spliced pole and the fixture block of wire casing adaptation, the back is installed on the casing to the apron, and the fixture block joint is in the wire casing of card terminal.

4. The frequency-selective voltage/current detector according to claim 3, wherein: a clamping groove is formed in one end face, far away from the clamping block, of the rocking handle connecting column, and a rocking handle used for rotation of the rocking handle connecting column is clamped in the clamping groove.

5. The frequency-selective voltage/current detector according to claim 1, wherein: the both ends of casing have all been seted up the fretwork groove, be provided with the arc fastener that is used for connecting wire connecting terminal card post in the casing.