CN203522149U - Electric hand drill safety control apparatus capable of changing rotation direction automatically - Google Patents
Electric hand drill safety control apparatus capable of changing rotation direction automatically Download PDFInfo
- Publication number
- CN203522149U CN203522149U CN201320630321.0U CN201320630321U CN203522149U CN 203522149 U CN203522149 U CN 203522149U CN 201320630321 U CN201320630321 U CN 201320630321U CN 203522149 U CN203522149 U CN 203522149U
- Authority
- CN
- China
- Prior art keywords
- electric hand
- hand drill
- normally
- carbon brush
- safety control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Drilling And Boring (AREA)
Abstract
The utility model, which relates to the technical field of electric hand drill safety control, discloses an electric hand drill safety control apparatus capable of changing a rotation direction automatically. The electric hand drill safety control apparatus comprises a three-gear rotary switch, a current detection controller and an intermediate relay. The current detection controller is connected in series to one input terminal of a manual speed-control switch of the electric hand drill; and the two output terminals of the three-gear rotary switch are respectively and correspondingly connected to the current detection controller and the other input terminal of the manual speed-control switch. The common terminal of the three-gear rotary switch is connected with a coil of the intermediate relay. A primary coil of the electric hand drill is connected a forward carbon brush and a backward carbon brush by a group of normally-opened and normally-closed contacts; and a secondary coil of the electric hand drill is connected with the forward carbon brush and the backward carbon brush by another group of normally-opened and normally-closed contacts. Leakage protection switches are connected to the input terminal of the manual speed-control switch at the three gears. The provided electric hand drill safety control apparatus has the following advantages: the motor overloading and damages of the motor and the drill rod can be effectively avoided and reduced; the clamping phenomenon of the drill rod can be reduced; the work efficiency can be improved; and the apparatus has the leakage protection function, so that the worker safety can be protected.
Description
Technical field
The utility model relates to electric hand drill safety control technology field, specifically a kind of electric hand drill safety control of automatic replacing direction of rotation.
Background technology
Electric hand drill is the electric tool being widely used, but because historical reason along practising or manufacturer are for the consideration of cost, does not substantially possess the defencive functions such as overload, electric leakage.In use, because user is unfamiliar with mechanical performance, or the intensity because of working face changes in precession, all can cause current of electric overload, the consequence that overload causes, gently reduction of service life, heavy calculate bad electric drill, serious also can cause personal injury.
Summary of the invention
In order to address the above problem, the utility model provides a kind of electric hand drill safety control of automatic replacing direction of rotation, have under forward/reversion and automatic mode by detect electric drill real-time current automatically control electric hand drill just/reverse function; Possesses creepage protection function, safety, reliable.
The utility model is realized with following technical scheme: a kind of electric hand drill safety control of automatic replacing direction of rotation, comprise a third gear rotary switch, current detecting controller and auxiliary relay, current detecting controller is connected on an input of manual governing switch in electric hand drill; Two outputs of third gear rotary switch are connected respectively another input of current detecting controller and manual governing switch, the common port of third gear rotary switch connects the coil of auxiliary relay, the main coil of electric hand drill is connected by two carbon brush of one group of normally-open normally-close contact and rotating, and the secondary coil of electric hand drill is connected by another two carbon brush in group normally-open normally-close contact and rotating; In third gear, at the input of manual governing switch, be connected with earth leakage circuit-breaker.
The beneficial effects of the utility model are: can effectively avoid and reduce the overload of motor, avoid and reduce the damage of motor and drilling rod, reduce the generation of the stuck situation of drilling rod, help raising work efficiency.Because this device possesses earth leakage circuit-breaker simultaneously, can effectively carry out the safety that earth leakage protective is effectively protected user.Volume is small and exquisite, and it is convenient to install, and cost is low, increases hardly operating cost.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of electric hand drill safety control of automatic replacing direction of rotation has a third gear rotary switch, current detecting controller and auxiliary relay, and current detecting controller is connected on an input of manual governing switch in electric hand drill; Two outputs of third gear rotary switch are connected respectively another input of current detecting controller and manual governing switch, the common port of third gear rotary switch connects the coil of auxiliary relay, the main coil of electric hand drill is connected by two carbon brush of one group of normally-open normally-close contact and rotating, and the secondary coil of electric hand drill is connected by another two carbon brush in group normally-open normally-close contact and rotating; In third gear, at the input of manual governing switch, be connected with earth leakage circuit-breaker.
In the present embodiment, the normally-closed contact of one group of normally-open normally-close contact is connected with forward carbon brush, and normally opened contact is connected with reversion carbon brush; The normally-closed contact of another group normally-open normally-close contact is connected with reversion carbon brush, and normally opened contact is connected with forward carbon brush.
By just possessing on the market/reversing in the electric hand drill of handoff functionality just/reversion diverter switch removes, the control line on switch received on this control device.For easy to carry and better protect this device, third gear rotary switch and auxiliary relay are arranged in a control cabinet.By this control cabinet, can realize the functions such as automatic pause, automatic reverse, forward maintenance, reversion maintenance and earth leakage protective.
The course of work: connect with the mains, when third gear rotary switch mediates grade, electric hand drill forward, left-handed electric hand drill turns, and dextrorotation is in automatic mode.Under automatic mode, when current detecting controller detection current working current reaches predefined current value, meeting automatic cut-off power, shut down, and make acousto-optic hint, and after continuity a period of time, automatically change main coil and secondary coil end to end and tie, realize the exit function that electric hand drill automatic reverse turns round.This device also has the maintenance of rotating and reverse function simultaneously simultaneously; Earth leakage circuit-breaker can effectively be protected abnormal conditions such as electric leakage, short circuits.
The present embodiment detects the operating current of electric hand drill by this portable control case, according to using parameters automatic pause, automatic reverse running, and have electric leakage automatic protection functions.Adopt after this automatic control equipment, can avoid long term overloading to cause damage to electric drill, also can effectively protect user not to be electrically shocked.The utility model is applicable to the automatic control of various electric hand drills, after suitably changing, also can be used for the automatic control that other similar hand electrics revolve tool.
Claims (3)
1. automatically change an electric hand drill safety control for direction of rotation, it is characterized in that: comprise a third gear rotary switch, current detecting controller and auxiliary relay, current detecting controller is connected on an input of manual governing switch in electric hand drill; Two outputs of third gear rotary switch are connected respectively another input of current detecting controller and manual governing switch, the common port of third gear rotary switch connects the coil of auxiliary relay, the main coil of electric hand drill is connected by two carbon brush of one group of normally-open normally-close contact and rotating, and the secondary coil of electric hand drill is connected by another two carbon brush in group normally-open normally-close contact and rotating; In third gear, at the input of manual governing switch, be connected with earth leakage circuit-breaker.
2. the electric hand drill safety control of automatic replacing direction of rotation according to claim 1, is characterized in that: the normally-closed contact of one group of normally-open normally-close contact is connected with forward carbon brush, and normally opened contact is connected with reversion carbon brush; The normally-closed contact of another group normally-open normally-close contact is connected with reversion carbon brush, and normally opened contact is connected with forward carbon brush.
3. the electric hand drill safety control of automatic replacing direction of rotation according to claim 1 and 2, is characterized in that: third gear rotary switch, current detecting controller and auxiliary relay are arranged in a control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630321.0U CN203522149U (en) | 2013-10-14 | 2013-10-14 | Electric hand drill safety control apparatus capable of changing rotation direction automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630321.0U CN203522149U (en) | 2013-10-14 | 2013-10-14 | Electric hand drill safety control apparatus capable of changing rotation direction automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522149U true CN203522149U (en) | 2014-04-02 |
Family
ID=50381024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320630321.0U Expired - Fee Related CN203522149U (en) | 2013-10-14 | 2013-10-14 | Electric hand drill safety control apparatus capable of changing rotation direction automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591571A (en) * | 2014-11-17 | 2016-05-18 | 无锡飞翎电子有限公司 | Control circuit for rotation of motor and control method thereof, and clothes dryer |
-
2013
- 2013-10-14 CN CN201320630321.0U patent/CN203522149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591571A (en) * | 2014-11-17 | 2016-05-18 | 无锡飞翎电子有限公司 | Control circuit for rotation of motor and control method thereof, and clothes dryer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105958437B (en) | Realize the control circuit of breaker decompression tripping in external circuit | |
| CN204967236U (en) | Leakage protector | |
| CN203522149U (en) | Electric hand drill safety control apparatus capable of changing rotation direction automatically | |
| CN103701091A (en) | Electric leakage controller for circuit breaker | |
| CN203260995U (en) | Single-phase safety electricity-using appliance | |
| CN203180504U (en) | Switch cabinet protecting device | |
| CN104022492A (en) | Auxiliary short circuit protection device for low-voltage power supply device of long-distance mine laneway | |
| CN102252123B (en) | Mining explosion-proof intrinsic safety type control box for valve electric device | |
| CN203104342U (en) | High-efficiency starting device being capable of effectively protecting motor windings | |
| CN203434595U (en) | Dual power supply manual switch protection circuit | |
| CN204103440U (en) | A kind of protection switch of mine coal electric drill | |
| CN204103785U (en) | Silicon rectifier draw-gear | |
| CN201893293U (en) | Arcless switching relay | |
| CN103077861B (en) | Switching device trip coil protector | |
| JP5238972B2 (en) | Power supply equipment for electrical machinery and equipment | |
| CN202140659U (en) | Control box of mining explosion-proof and intrinsic safety valve electric device | |
| CN102071438B (en) | Multifunctional crane feeding section sliding contact line power supply device of electrolysis shop | |
| CN105591580A (en) | Large-scale hydro-generator rotor de-excitation and overvoltage protection combined device | |
| CN203504132U (en) | Overcurrent protection device for mining mobile transformer station of flame-proof type | |
| CN203014478U (en) | Interlock control circuit on work power source and standby power source | |
| CN203607816U (en) | Control circuit used for controlling and protecting switching device | |
| CN202678935U (en) | Electric tool multifunctional protection controller | |
| CN203871864U (en) | Pumping unit compensation-type protection control device | |
| KR20190007601A (en) | Electric vehicle charging protection circuit | |
| CN202931271U (en) | Energy conservation safety switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141014 |
|
| EXPY | Termination of patent right or utility model |