CN2267884Y

CN2267884Y - Portable multifunction hand-held electric drill

Info

Publication number: CN2267884Y
Application number: CN 96236568
Authority: CN
Inventors: 梁广明
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-07
Filing date: 1996-02-07
Publication date: 1997-11-19
Anticipated expiration: 2006-02-07

Abstract

The utility model relates to a portable multifunction hand-hesssld electric drill, which is an improvement on the basis of an existing common hand-held electric drill. A mechanical reduction gear which is composed of a plurality of gears is arranged on a rotating shaft of the hand-held electric drill, and a rotating shaft of at the end of the mechanical reduction gear can be rotated via gradual speed reduction and enlarging strength, so that a screw driver or a screw tap arranged on a shaft head can be driven to rotate, and therefore, the utility model can accomplish the operation of a screw, such as screwing, loosening and threading. The utility model can integrate drilling, screwing, loosening, threading and other operation on a tool, and can accomplish complete portable type and electromotion. The utility model has the characteristics of time saving, labor saving, high efficiency, light weight, simple operation, easy fabrication, etc.

Description

The portable multi-function electric hand drill

The utility model is to belong to field of power tools, particularly a kind of portable portable electric drill with multiple function.

Mostly portable portable electric drill in the real world applications field is to be used for single bore operation, and be used to tighten up and the screw that gets loose all be hand-operated tools basically, electronic spiral tool mostly is mounted on the various production lines, and the convenient portable electric spiral tool that uses is also comparatively rare.And will hole and two kinds of operations of spiral all concentrate on a kind of portable dam, make its portable power tool that can finish multiple function also never meet the city.

The purpose of this utility model just is to have improved above-mentioned existing electric hand drill and has only the boring function not have the spiral function, reach the defective that does not have portable portable electric tool in the real spiral operation, and a kind of bore operation of not only can finishing is provided, also can finish the tightening up and the portable multifunctional electric tool of the spiral operation that gets loose of screw of all size and model.

The purpose of this utility model is achieved by following technical proposals, on the basis of existing conventional portable electric hand drill, increased by gear, the driving tooth wheels, driven gear, the free gear group, interior axle, rotating shaft, stir hand and dynamics table, dynamics is regulated the mechanical reduction gear that controlling organization forms and the utility model that constitutes is to insert gear in the rotating shaft of the fore bearing back of electric drill, there are driving tooth wheels to be meshed below this gear with it, driven gear place with the coaxial parallel position of driving tooth wheels on, free gear group and driving tooth wheels or driven gear are meshing with each other, and rotating shaft is passed from the centre of free gear group, and interior axle is connected the end of central siphon by the clutch on the dynamics adjusting controlling organization.

The purpose of this utility model also is achieved by following technical proposals, and former and later two gears of free gear group are intermeshing with driving tooth wheels or driven gear respectively by the control of stirring hand.Dynamics is regulated controlling organization by clutch with place adjusting nut, hold-doun nut thereafter and place the dynamics table on the clutch to form.Then clutch is made up of three springs that vary in size.

Several work such as the utility model will be holed, screws, unscrewed, tapping combine in to be finished on a kind of instrument, and has realized complete portable and motorized, have save time, laborsaving, high efficiency, light, characteristics such as simple to operate, easy making.

Accompanying drawing of the present utility model and drawing are described as follows:

Fig. 1 is an agent structure schematic diagram of the present utility model;

Below in conjunction with drawings and Examples the utility model is further described: the utility model is to improve to form on the basis of existing conventional portable electric hand drill, the agent structure that Fig. 1 provides illustrates that the utility model is the basic building block coil 1 at the conventional portable electric hand drill, rotor 2, the copper heart 3, rear bearing 4, carbon brush 5, back handle 6, power line 7, switch 8, fan 26, fore bearing 25, rotating shaft 26 and

gear

22,23 all remain under the structure of original invariant position, and are connected to one by a plurality of gears in the rotating shaft 26 of fore bearing 25 back, rotating shaft, interior axle and dynamics are regulated the common mechanical reduction gear of forming of controlling organization, original member of this device and electric hand drill places within the same shell, finishes screwing of hole drill and screw jointly, unscrews the function with tapping.Mechanical reduction gear described in the utility model is by gear 24, driving tooth wheels 21, and driven gear 20, free gear group 14, rotating shaft pipe 18, interior axle 12 stirs hand 17 and dynamics table 9, and dynamics adjusting controlling

organization

10,11,13 is formed.In the rotating shaft 26 of fore bearing 25 back, insert gear 24, below this gear 24, there are driving tooth wheels 21 to be meshed with it, driven gear 20 place with the coaxial parallel position of driving tooth wheels 21 on, former and later two gears of free gear group 14 stir being meshing with each other with driving tooth wheels 21 or driven gear 20 respectively of hand 17 by what have a function translation function, with the forward or reverse of control central siphon 18.Rotating shaft 18 is passed from free gear group 14, and interior axle 12 is by regulating and the dynamics of control dynamics size is regulated the end that clutch 13 on the controlling organization is connected rotating shaft 18, and the woods other end of rotating shaft 18 is spindle noses 19 of tipping screwdriver or screw tap.Dynamics is regulated the clutch 13 of controlling organization and is made of the top dynamics table 9 that also has indication dynamics size of clutch 13 three springs that vary in size and adjusting nut 10, hold-doun nut 11.

Use the utility model, when carrying out bore operation, the type of attachment of its member and user's method of operating are all identical with existing conventional portable electric hand drill, do not have any different place.And when carry out screw screw, unscrew or during the tapping operation, along with the rotation that is connected on the gear 24 in the fore bearing 25 back rotating shafts 26, driving tooth wheels 21 that are meshed with this gear 24 or driven gear 20 rotate, the free gear group 14 that is meshed with driving tooth wheels 21 is also rotated, thereby drive rotating shaft 18, interior axle 12 and tipping screwdriver or the screw tap on rotating shaft 18 spindle noses 19 rotates.High speed rotor rotated 2 brings the step by step deceleration of the rotation of rotating shaft 26 through top a plurality of gears, the power that suitable dynamics is arranged that produces and strengthen step by step is embodied at last and is connected on the screwdriver or screw tap that is rotating on the spindle nose 19, thereby finishes that screw screws, function operation that tapping or screw unscrew.When the front gear of free gear group 14 was meshed with driving tooth wheels 21, spindle nose 19 was just changeing, and finished screw means or tapping function; When the backgear of free gear 14 was meshed with driven gear 20, spindle nose 19 counter-rotatings were finished screw and are screwed out function.The hand 17 that stirs that is connected on the free gear group 14 is the spinfunction governor motions that are meshed and are provided with driving gear or with driven gear for former and later two gears of regulating on the free gear group 14.Interior axle 12 is to be connected with rotating shaft in the clutch 13 that the end of rotating shaft 18 is regulated on the controlling organization by dynamics.And clutch 13 is made of three springs that vary in size.When carrying out the operation of spiral function, at first by turn the stressed size of regulating nut 10 and hold-doun nut 11 adjusting clutches 13 upper springs by dynamics table 9, screw determining, unscrew, the needed dynamics of the screw of tapping, when screwing, unscrew or merit silk operation process in when running into dynamics on the spindle nose 19 greater than the setting value on the dynamics table 9, clutch 13 is pushed in rotating shaft 18 open, though rotating shaft 18 this moment is still being rotated, but interior axle 12 has stopped rotation, make the screwdriver or the screw tap that are connected on the spindle nose 19 stop work, greatly screw thread is turned round anti-phenomenon and taken place thereby can effectively prevent to spend because of rotatory force.

The utility model is equipped with a front hand grip 15 in the bottom of set gear reduction, also be provided with pipe 16 in the front hand grip 15, and when screwing, unscrew or tapping when needing bigger power, interior pipe 16 can be released is connected with front hand grip, the length of increase handle.Two hand branches are held front hand grip 15 and back handle 7 during operation, can increase stability, more convenient operation.

Claims

1, a kind of portable multi-function electric hand drill, be on the basis of existing common electric hand drill, to have increased by gear (24), driving tooth wheels (21), driven gear (20), free gear group (14), interior axle (12), rotating shaft (18), stir hand (17) and dynamics table (9), dynamics is regulated controlling organization (10), (11), (13) mechanical reduction gear of Zu Chenging constitutes, access gear (24) is gone up in the rotating shaft (26) that it is characterized in that fore bearing (25) back at electric drill, there are driving tooth wheels (21) to be meshed below this gear (24) with it, driven gear (20) place with the coaxial parallel position of driving tooth wheels (21) on, free gear group (14) is meshing with each other with driving tooth wheels (21) or driven gear (20), rotating shaft (18) is passed from the centre of free gear group (14), and interior axle (12) is connected the end of central siphon (18) by the clutch (13) of dynamics adjusting controlling organization.

2, portable multi-function electric hand drill according to claim 1, former and later two gears that it is characterized in that free gear group (14) are intermeshing with driving tooth wheels (21) or driven gear (20) respectively by the control of stirring hand (17).

3, portable multi-function electric hand drill according to claim 1 is characterized in that dynamics regulates controlling organization by clutch (13) with place adjusting nut (10), hold-doun nut (11) thereafter and place the dynamics table (9) on the clutch (13) to form.

4,, it is characterized in that clutch (13) is made up of three springs that vary in size according to claim 1,3 described portable multi-function electric hand drills.