CN202041601U - Leakage current testing system for handheld electric tools - Google Patents
Leakage current testing system for handheld electric tools Download PDFInfo
- Publication number
- CN202041601U CN202041601U CN2010206500268U CN201020650026U CN202041601U CN 202041601 U CN202041601 U CN 202041601U CN 2010206500268 U CN2010206500268 U CN 2010206500268U CN 201020650026 U CN201020650026 U CN 201020650026U CN 202041601 U CN202041601 U CN 202041601U
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- leakage current
- pressure head
- current testing
- hand held
- electric tool
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a leakage current testing system for handheld electric tools, which comprises a leakage current tester, a box body and a sample fixing mechanism, and is characterized in that an insulating flat plate is arranged on the box body; the sample fixing mechanism comprises a base plate arranged on the insulating flat plate; a pressure head bottom plate and a pair of V-shaped copper seats are arranged on the base plate; a connecting terminal is arranged on each V-shaped copper seat; a pressure head supporting plate is connected to the pressure head bottom plate through a pair of connecting rods; a fast clamping device is arranged on the pressure head supporting plate; and a power socket and a testing terminal are arranged on the insulating flat plate. The leakage current testing system is applicable to leakage current testing of various handheld electric tools, is essential testing equipment for ensuring the safety of various handheld electric tools, and has the advantages of convenience in operation, safety, reliability, favorable performance and convenience in maintenance.
Description
Technical field
The present invention relates to the leakage current testing device, specifically a kind of hand held electric tool leakage current testing system.
Background technology
The national standard of hand held electric tool has the relevant regulations requirement to leakage current.According to the GB requirement, be posted on the easy surface in contact of hand held electric tool with the metal forming of a slice given size, to the sample energising, by the leakage current between leakage current tester potential electrode and the metal forming.Because the hand held electric tool surface is rule not really, metal forming is difficult to accomplish fully and contact that slight gap appears in local federation, thereby causes test result inaccurate, brings potential safety hazard with the tested sample surface.In addition, owing to once can only test the leakage current at a position, thereby testing efficiency is not high.
Summary of the invention
What the present invention will solve is the above-mentioned problems in the prior art, aims to provide a kind of hand held electric tool leakage current testing system with special-purpose sample fixed mechanism.
The technical scheme that addresses the above problem employing is: hand held electric tool leakage current testing system, comprise leakage current tester, casing and sample fixed mechanism, it is dull and stereotyped to it is characterized in that described casing is provided with insulation, described sample fixed mechanism comprises the substrate that is arranged on the described insulation flat board, described substrate is provided with pressure head base plate and a pair of V-type copper seat, described V-type copper seat is provided with connection terminal, connect the pressure head back up pad by a pair of connecting link on the described pressure head base plate, described pressure head back up pad is provided with quick clamping device; Described insulation flat board is provided with supply socket and calibrating terminal.
Hand held electric tool leakage current testing of the present invention system before the test, sticks on metal forming the test position of sample earlier, and sample is placed on a pair of V-type copper seat, metal forming is pressed put between sample and V-type copper seat; Depress quick clamping device then, sample is located; With lead the connection terminal of two V-type copper seats is connected on the calibrating terminal on the insulation flat board; With the supply socket on the plug insertion insulation flat board of sample; Opening testing power supply can operate.As seen owing to adopted special-purpose sample fixed mechanism, make metal forming and specimen surface better card close, improved the accuracy of measuring, also be difficult for producing test leakage.Quick clamping device can be fixed sample quickly and easily, has improved testing efficiency greatly.
In sum, the present invention is applicable to that all kinds of hand held electric tools carry out leakage current testing, guarantees the essential testing equipment of safety of various hand held electric tools, and test macro is easy to operate, safe and reliable, functional, easy to maintenance.This test macro great advantage is embodied in:
1, the sample fixed mechanism can be locked various tested hand held electric tools fast, carries out leakage current test, has improved work efficiency greatly.
2, tested hand held electric tool can be under running status, the test for leaks electric current; Also can under static state measure.
As a further improvement on the present invention, described substrate is provided with cross slide way, and described a pair of V-type copper seat is arranged on the described cross slide way.Described connecting link is a screw rod, and fixes by nut and pressure head base plate and pressure head back up pad.Can carry out height according to the sample of different size regulates.Can carry out laterally and the adjustment of short transverse according to the size of sample, make system have more versatility, can be fit to various types of electric tools.
Further improve as of the present invention, described bottom half is provided with band pin universal wheel, can conveniently carry again.
Further improve as of the present invention, system also is provided with pressure regulator again, according to various sample, test voltage is adjusted to the regulation requirement before test.
Further improve as of the present invention, system also is provided with control circuit and controller again, can carry out test process and control automatically, and controller is used to switch manual test and automatic test mode.
Further improve as of the present invention, described quick clamping device comprises handle, master connecting-rod, slave connecting rod, mother tuber and pressure head, and described Handle axis is connected on first axle of described mother tuber; Described master connecting-rod one end is coupling on second axle of described mother tuber, and the other end connects described pressure head; Described slave connecting rod one end is coupling on the 3rd axle of master connecting-rod, and the other end is coupling on the 4th axle of handle; Described mother tuber is arranged on the described pressure head back up pad.A preferred mode, described pressure head is connected with described master connecting-rod by screw rod, and described screw rod is provided with setting nut.By the rotation nut, can regulate the height of pressure head.
Described quick clamping device is after depressing handle, and master connecting-rod and slave connecting rod interlock are depressed the location, back with pressure head, and with the pressure head locking, can not rebound.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a circuit control block diagram of the present invention.
Fig. 3 is an elementary diagram of the present invention.
Fig. 4 is the structural representation of sample fixed mechanism of the present invention.
Fig. 5 is the structural representation of quick clamping device of the present invention.
Embodiment
With reference to Fig. 1, hand held electric tool leakage current testing of the present invention system comprises leakage current tester 15, casing 2, pressure regulator and isolating transformer 16, control circuit and controller 17, and described casing 2 bottoms are provided with band pin universal wheel 1.Described casing 2 is provided with insulation flat board 3, and insulation dull and stereotyped 3 is provided with sample fixed mechanism 20, supply socket 4 and calibrating terminal 5.
With reference to Fig. 4, described sample fixed mechanism 20 comprises the substrate 6 that is arranged in the described insulation dull and stereotyped 3, described substrate 6 is provided with pressure head base plate 9 and cross slide way 7, described cross slide way 7 is provided with described a pair of V-type copper seat 8, described V-type copper seat 8 is provided with connection terminal 19, connect pressure head back up pad 11 by a pair of connecting link 10 on the described pressure head base plate 9, described pressure head back up pad 11 is provided with quick clamping device 12; Described insulation dull and stereotyped 3 is provided with supply socket 19 and calibrating terminal 5.
Described connecting link 10 is a screw rod 10, and fixing with pressure head base plate 9 and pressure head back up pad 11 by nut 14.
With reference to Fig. 5, described quick clamping device 12 comprises handle 21, master connecting-rod 29, slave connecting rod 22, mother tuber 27 and pressure head 28, and described handle 21 is coupling on first axle 26 of described mother tuber 27; Described master connecting-rod 29 1 ends are coupling on second axle 25 of described mother tuber 27, and the other end connects described pressure head 28; Described slave connecting rod 22 1 ends are coupling on the 3rd axle 24 of master connecting-rod 29, and the other end is coupling on the 4th axle 23 of handle 21; Described mother tuber 27 is arranged on the described pressure head back up pad 11.
Described pressure head 28 is connected with described master connecting-rod 29 by screw rod 31, and described screw rod 31 is provided with setting nut 30.
Example operation
With the sample is II class electric drill, and pilot project is that leakage current test is an example.
1, whether the checkout system wiring is correct, loosening.
2, tested sample is installed on the sample fixed mechanism, in the 220V supply socket on the omnipotent test stand of attaching plug insertion leakage current testing of sample.
3, the omnipotent test stand power supply of leakage current tester, pressure regulation-isolating transformer and leakage current testing that closes.
4, press the leakage current tester power switch, be shown as zero; With pressure regulator the power supply of tested sample is adjusted to trial voltage.
5, leakage current testing current.Method has two kinds, optional one.
A, press " startup " button of pressure regulation-isolating transformer front panel, " manual " button of leakage current tester front panel is beaten at " manually " state, press " N control " button of controller, " phase line/zero line " button of leakage current tester front panel is beaten at " zero line " state, make display window switch to zero line leakage current display window, show test voltage and leakage current this moment, for tested sample under situation about not moving, the leakage current of zero line.
Phase line leakage current when the measurement sample does not move, " N control " push-button reset with controller, press " L control " button, " phase line/zero line " button of leakage current tester front panel is beaten at " phase line " state, make display window switch to phase line leakage current display window, show test voltage and leakage current this moment, for tested sample under situation about not moving, the leakage current of phase line.
Under b, the measurement sample running status, the leakage current of phase line, zero line.Press " startup " button of pressure regulation-isolating transformer front panel, press " the N control " and " L control " of controller simultaneously, " manual " button of leakage current tester front panel is beaten at " automatically " state, and phase line and neutral line current value show by turns at two windows under the automated manner; " manual " button of leakage current tester front panel is beaten at " manually " state, manual switchover " phase line/zero line " button, a display window shows corresponding leakage value.Another shows 0;
7, end of test (EOT) is pressed stop button, cuts off the sample power supply, again the shutdown test system power supply.
What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.
Claims (8)
1. hand held electric tool leakage current testing system, comprise leakage current tester (15), casing (2) and sample fixed mechanism (20), it is characterized in that described casing (2) is provided with insulation dull and stereotyped (3), described sample fixed mechanism (20) comprises the substrate (6) that is arranged in the described insulation dull and stereotyped (3), described substrate (6) is provided with pressure head base plate (9) and a pair of V-type copper seat (8), described V-type copper seat (8) is provided with connection terminal (19), described pressure head base plate (9) is gone up by a pair of connecting link (10) and is connected pressure head back up pad (11), and described pressure head back up pad (11) is provided with quick clamping device (12); Described insulation dull and stereotyped (3) is provided with supply socket (4) and calibrating terminal (5).
2. hand held electric tool leakage current testing as claimed in claim 1 system is characterized in that described substrate (6) is provided with cross slide way (7), and described a pair of V-type copper seat (8) is arranged on the described cross slide way (7).
3. hand held electric tool leakage current testing as claimed in claim 1 system is characterized in that described connecting link (10) is a screw rod (10), and fixes by nut (14) and pressure head base plate (9) and pressure head back up pad (11).
4. hand held electric tool leakage current testing as claimed in claim 1 system is characterized in that described casing (2) bottom is provided with band pin universal wheel (1).
5. hand held electric tool leakage current testing as claimed in claim 1 system is characterized in that system also is provided with pressure regulator (16).
6. hand held electric tool leakage current testing as claimed in claim 1 system is characterized in that system also is provided with control circuit and controller (17).
7. as any one described hand held electric tool leakage current testing system of claim 1-6, it is characterized in that described quick clamping device (12) comprises handle (21), master connecting-rod (29), slave connecting rod (22), mother tuber (27) and pressure head (28), described handle (21) is coupling on first axle (26) of described mother tuber (27); Described master connecting-rod (29) one ends are coupling on second axle (25) of described mother tuber (27), and the other end connects described pressure head (28); Described slave connecting rod (22) one ends are coupling on the 3rd axle (24) of master connecting-rod (29), and the other end is coupling on the 4th axle (23) of handle (21); Described mother tuber (27) is arranged on the described pressure head back up pad (11).
8. hand held electric tool leakage current testing as claimed in claim 7 system is characterized in that described pressure head (28) is connected with described master connecting-rod (29) by screw rod (31), and described screw rod (31) is provided with setting nut (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206500268U CN202041601U (en) | 2010-12-09 | 2010-12-09 | Leakage current testing system for handheld electric tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206500268U CN202041601U (en) | 2010-12-09 | 2010-12-09 | Leakage current testing system for handheld electric tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041601U true CN202041601U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206500268U Expired - Lifetime CN202041601U (en) | 2010-12-09 | 2010-12-09 | Leakage current testing system for handheld electric tools |
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| Country | Link |
|---|---|
| CN (1) | CN202041601U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095919A (en) * | 2010-12-09 | 2011-06-15 | 浙江华电器材检测研究所 | Leakage current test system for handheld type electric tools |
| CN106093660A (en) * | 2016-07-27 | 2016-11-09 | 苏州博众精工科技有限公司 | Quick power-on device and quick power-on method |
| CN107942188A (en) * | 2017-11-23 | 2018-04-20 | 广东天圣高科股份有限公司 | A kind of leakage current tester detection device |
-
2010
- 2010-12-09 CN CN2010206500268U patent/CN202041601U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095919A (en) * | 2010-12-09 | 2011-06-15 | 浙江华电器材检测研究所 | Leakage current test system for handheld type electric tools |
| CN106093660A (en) * | 2016-07-27 | 2016-11-09 | 苏州博众精工科技有限公司 | Quick power-on device and quick power-on method |
| CN106093660B (en) * | 2016-07-27 | 2018-11-02 | 博众精工科技股份有限公司 | Quick power-on device and quick power-on method |
| CN107942188A (en) * | 2017-11-23 | 2018-04-20 | 广东天圣高科股份有限公司 | A kind of leakage current tester detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111116 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |