CN209055617U - A kind of portable earth detector - Google Patents

A kind of portable earth detector Download PDF

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Publication number
CN209055617U
CN209055617U CN201821731762.9U CN201821731762U CN209055617U CN 209055617 U CN209055617 U CN 209055617U CN 201821731762 U CN201821731762 U CN 201821731762U CN 209055617 U CN209055617 U CN 209055617U
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China
Prior art keywords
fixed
iron core
outer rim
insulating layer
core
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Application number
CN201821731762.9U
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Chinese (zh)
Inventor
何南生
方畅愉
吕玉婷
余嘉贤
方振
司徒舒鹏
温佳贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by Guangdong Power Grid Co Ltd, Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN201821731762.9U priority Critical patent/CN209055617U/en
Application granted granted Critical
Publication of CN209055617U publication Critical patent/CN209055617U/en
Active legal-status Critical Current
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Abstract

The utility model relates to arrive a kind of detection device field, and in particular to arrive a kind of portable earth detector.Including casing, the telescopic rod being slidably matched with it is provided in casing, the outer rim of casing is fixed with power supply, switch and ammeter, and sleeve upper end is threaded with the lock handle of fixed telescopic rod, and the upper end of telescopic rod is fixed with straight-through current transformer.The technical problem to be solved by the utility model is to a kind of working efficiency for being greatly improved power supply personnel and personal safeties, convenient to detect to route, reduce the labor intensity of testing staff.

Description

A kind of portable earth detector
Technical field
The utility model relates to arrive a kind of detection device field, and in particular to arrive a kind of portable earth detector.
Background technique
The 0.4kV power supply facilities now run is leaked electricity, due to user's power stealing facility, is caused every year to power supply enterprise Weight huge economic loss, because facility electric leakage also will cause human safety issues, for this purpose, power supply enterprise all need every year periodically it is right 0.4kV power supply facilities carries out looking into the work of tax evasion electricity, hits stealing electricity behavior, handles electric leakage;But power supply enterprise at present Industry is looked into the current and voltage method that the equipment that tax evasion electricity uses is mostly multimeter to overhead transmission line and is carried out, low for low-voltage overhead line road Voltage cable route is because the big spacing of low-voltage circuit line footpath is big (four low-voltage line maximum distances are about 0.8 meter), equipment used at present Effectively can not fast it carry out with lookup method, for this purpose, a kind of novel 0.4kV low-voltage circuit tax evasion electricity finder is developed in plan, This equipment has the current-voltage measurement function of current multimeter, the clamp on amperemeter function of this equipment, and survey crew directly exists Ground can measure four conducting wires of overhead transmission line, do not need to step on bar can rapid survey go out to have abnormal electric leakage it is aerial Route;It is greatly improved working efficiency and the personal safety of power supply personnel, low-voltage circuit is leaked electricity using this equipment, one ground of a line Power stealing, across platform area's stealing electricity behavior will have no place to hide.
Utility model content
The technical problem to be solved by the utility model is to a kind of working efficiency for being greatly improved power supply personnel and people Body is safe and convenient to detect route, reduces the portable earth detector of the labor intensity of testing staff.
To achieve the goals above, technical solution provided by the utility model is:
A kind of portable earth detector, including casing are provided with the telescopic rod being slidably matched with it, casing in casing Outer rim be fixed with power supply, switch and ammeter, sleeve upper end is threaded with the lock handle of fixed telescopic rod, telescopic rod Upper end is fixed with straight-through current transformer;
The straight-through current transformer includes the secured core that both ends are folded upward at and lateral rotary iron core, pivoting rail The part upper end being folded upward on the left of the left side of core and secured core is hinged by shaft and in electrical contact, secured core and rotation The outer rim for turning iron core is provided with insulating layer, be wound on the horizontal part between secured core and its outer rim insulating layer secondary side around Group, vice-side winding and ammeter are electrically connected, and fluted, the right side of rotary iron core is arranged in the upper end being folded upward on the right side of secured core End lower section is fixed with the convex block being electrically connected, and the insulating layer that convex block passes through rotary iron core outer rim extends in groove, convex block The slot bottom of outer rim and groove is in electrical contact, is fixed with otic placode on the insulating layer lower end surface of secured core horizontal part left end, on otic placode It is provided with sheave, is fixed with electric expansion cylinder on the insulating layer lower end surface of the secured core horizontal part outer rim on the right side of sheave, Motion bar one end of electric expansion cylinder and one end of drawstring connect, and the other end of drawstring is around the left side after sheave with rotary iron core End is fixedly connected, and is fixed on the positive insulating layer of secured core being folded upward on the right side of shaft and is stopped consolidating for rotary iron core left end Fixed board is fixed with the perpendicular spring of longitudinal center line on fixed plate left side, and power supply, switch and electric expansion cylinder electrically connect It connects.
Specifically, the power supply is battery.
Specifically, the insulating layer right end of the rotary iron core outer rim is fixed with clump weight.
Compared with prior art, the utility model has the following beneficial effects:
The utility model, structure is simple, easy to operate, is greatly improved working efficiency and the personal safety of power supply personnel, It is convenient that route is detected, reduce the labor intensity of testing staff.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is structural schematic diagram when rotary iron core is opened.
Fig. 3 is the enlarged drawing of a-quadrant in Fig. 1.
Parts title in attached drawing are as follows:
1, casing, 2, ammeter, 3, switch, 4, power supply, 5, lock handle, 6, secured core, 7, rotary iron core, 8, insulation Layer, 9, groove, 10, convex block, 11, electric expansion cylinder, 12, otic placode, 13, sheave, 14, drawstring, 15, fixed plate, 16, spring, 17, shaft, 18, telescopic rod, 19, clump weight.
Specific embodiment
As shown in Figure 1-3, a kind of portable earth detector, including casing 1, it is provided with to slide with it in casing 1 and matches The telescopic rod 18 of conjunction, the outer rim of casing 1 are fixed with power supply 4, switch 3 and ammeter 2, and the power supply 4 is battery.On casing 1 End is threaded with the lock handle 5 of fixed telescopic rod 18, and the upper end of telescopic rod 18 is fixed with straight-through current transformer.
The straight-through current transformer includes the secured core 6 that both ends are folded upward at and lateral rotary iron core 7, rotation The part upper end being folded upward on the left of the left side of iron core 7 and secured core 6 is hinged by shaft 17 and in electrical contact, fixed iron The outer rim of core 6 and rotary iron core 7 is provided with insulating layer 8, and 8 right end of insulating layer of 7 outer rim of rotary iron core is fixed with counterweight Block 19.Vice-side winding, 2 electricity of vice-side winding and ammeter are wound on horizontal part between secured core 6 and its outer rim insulating layer 8 Property connection, the upper end setting fluted 9 being folded upward on the right side of secured core 6 is fixed with below the right end of rotary iron core 7 and its electricity Property connection convex block 10, convex block 10 pass through 7 outer rim of rotary iron core insulating layer 8 extend in groove 9,10 outer rim of convex block and groove 9 slot bottom is in electrical contact, is fixed with otic placode 12 on 8 lower end surface of insulating layer of 6 horizontal part left end of secured core, is arranged on otic placode 12 There is sheave 13, is fixed with electric expansion cylinder on 8 lower end surface of insulating layer of the 6 horizontal part outer rim of secured core on 13 right side of sheave 11, motion bar one end of electric expansion cylinder 11 is connect with one end of drawstring 14, the other end of drawstring 14 around after sheave 13 with The left end of rotary iron core 7 is fixedly connected, and is fixed with resistance on the positive insulating layer 8 of secured core 6 being folded upward on the right side of shaft 17 The fixed plate 15 of 7 left end of rotary iron core is kept off, is fixed with the perpendicular spring 16 of longitudinal center line on 15 left side of fixed plate, electricity Source 4, switch 3 and electric expansion cylinder 11 are electrically connected.
When the utility model is used, electric expansion cylinder 11 is started by switch 3, so that the motion bar of electric expansion cylinder 11 is received Contracting, the motion bar of electric expansion cylinder 11 make 17 rotation counterclockwise around the shaft of rotary iron core 7 by drawstring 14, and convex block 10 will be from It is exited in groove 9, with the rotation counterclockwise of rotary iron core 7, when the insulating layer 8 of 7 left end outer rim of rotary iron core connects with spring 16 Spring 16 will be squeezed after touch, when rotary iron core 7 and horizontal plane, switch 3 is disconnected, so that the telescopic rod 18 in casing 1 It drives straight-through current transformer to rise, is folded upward between part when detected electric wire is located at left and right sides of secured core 6 When, turn on the switch 3 so that the motion bar of electric expansion cylinder 11 extends, at this time spring 16 will make the upper end of rotary iron core 7 to Right side inclination, as under the continuous elongation of 11 motion bar of electric expansion cylinder and the gravity of clump weight 19, rotary iron core 7 tends to It is parallel to the horizontal plane, when convex block 10 is located in groove 9 and contacts with the slot bottom of groove 9, disconnects switch 3, ammeter 2 is just at this time It can show the electric current in tested wire that straight-through current transformer senses, while detection tester being facilitated to judge.
When to remove straight-through current transformer from tested wire, electric expansion cylinder 11 is started by switch 3, so that The motion bar of electric expansion cylinder 11 is shunk, and the motion bar of electric expansion cylinder 11 makes rotary iron core 7 around the shaft 17 by drawstring 14 Rotation, convex block 10 will be exited out of groove 9 counterclockwise, when rotary iron core 7 and horizontal plane, disconnected switch 3, at this time may be used The straight-through current transformer covered on tested wire is removed.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (3)

1. a kind of portable earth detector, including casing (1), casing (1) is interior to be provided with the telescopic rod being slidably matched with it (18), which is characterized in that the outer rim of casing (1) is fixed with power supply (4), switch (3) and ammeter (2), casing (1) threaded upper ends It is connected with the lock handle (5) of fixed telescopic rod (18), the upper end of telescopic rod (18) is fixed with straight-through current transformer;
The straight-through current transformer includes the rotary iron core (7) of the secured core (6) that both ends are folded upward at and transverse direction, rotation The part upper end being folded upward on the left of the left side of iron core (7) and secured core (6) is hinged and in electrical contact by shaft (17), The outer rim of secured core (6) and rotary iron core (7) is provided with insulating layer (8), secured core (6) and its outer rim insulating layer (8) Between horizontal part on be wound with vice-side winding, vice-side winding and ammeter (2) are electrically connected, on the right side of secured core (6) upwards Fluted (9) are arranged in the upper end of bending, are fixed with the convex block (10) being electrically connected below the right end of rotary iron core (7), convex The insulating layer (8) that block (10) passes through rotary iron core (7) outer rim extends in groove (9), the slot of convex block (10) outer rim and groove (9) Bottom is in electrical contact, is fixed with otic placode (12) on insulating layer (8) lower end surface of secured core (6) horizontal part left end, on otic placode (12) It is provided with sheave (13), it is fixed on insulating layer (8) lower end surface of secured core (6) horizontal part outer rim on the right side of sheave (13) Have electric expansion cylinder (11), motion bar one end of electric expansion cylinder (11) is connect with one end of drawstring (14), drawstring (14) it is another One end is fixedly connected with the left end of rotary iron core (7) afterwards around sheave (13), the fixation iron being folded upward on the right side of shaft (17) The fixed plate (15) for stopping rotary iron core (7) left end, fixed plate (15) left side are fixed on core (6) positive insulating layer (8) On be fixed with the perpendicular spring of longitudinal center line (16), power supply (4), switch (3) and electric expansion cylinder (11) electric connection.
2. a kind of portable earth detector according to claim 1, which is characterized in that the power supply (4) is battery.
3. a kind of portable earth detector according to claim 1, which is characterized in that rotary iron core (7) outer rim Insulating layer (8) right end be fixed with clump weight (19).
CN201821731762.9U 2018-10-24 2018-10-24 A kind of portable earth detector Active CN209055617U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821731762.9U CN209055617U (en) 2018-10-24 2018-10-24 A kind of portable earth detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821731762.9U CN209055617U (en) 2018-10-24 2018-10-24 A kind of portable earth detector

Publications (1)

Publication Number Publication Date
CN209055617U true CN209055617U (en) 2019-07-02

Family

ID=67051385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821731762.9U Active CN209055617U (en) 2018-10-24 2018-10-24 A kind of portable earth detector

Country Status (1)

Country Link
CN (1) CN209055617U (en)

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