CN2336925Y - Mechanical self-controlling quasi-automatic electric screw-driver - Google Patents
Mechanical self-controlling quasi-automatic electric screw-driver Download PDFInfo
- Publication number
- CN2336925Y CN2336925Y CN 98207514 CN98207514U CN2336925Y CN 2336925 Y CN2336925 Y CN 2336925Y CN 98207514 CN98207514 CN 98207514 CN 98207514 U CN98207514 U CN 98207514U CN 2336925 Y CN2336925 Y CN 2336925Y
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- CN
- China
- Prior art keywords
- brake disc
- type control
- mechanical type
- control drives
- round bar
- 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
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a mechanical self-controlling type quasi-automatic electric screw driver, which is proposed for providing the Electric screw driver which can quickly brake by using a motor and can have extended service life. The utility model comprises a mechanical control-drive structure and a screw driver structure and a braking structure which are respectively arranged at the bottom end and the top end of the mechanical control-drive structure. The braking structure comprises a braking disc, an elastic element, a sliding seat, pushing sheets pivoted on fixed plates, the fixed plates arranged on both sides of the sliding seat, and an electric switch. The pushing sheet is extended with jacking and holding end and an acting end which are respectively contacted with the round bar of the braking disc and the electric switch. The braking disc is connected with the mechanical control-drive structure. The round bar end of the braking disc can be arranged on the sliding seat in a sliding way through the elastic element.
Description
The utility model belongs to portable power tools, the accurate automatic electric bottle opener of particularly a kind of mechanical autocontrol.
Electric screw driver or be semi-automatic, or be full-automatic.Semi-automatic electric plays subsystem and opens and closes for controlling motor with the people.During operation, depress screwdriver head and connect motor power, make motor rotation drive the screwdriver head rotation.When reaching setting locking torsion, slipping of clutch must cut off motor power in artificial mode, and motor is stopped.This semi-automatic electric bottle opener not only very easily causes carbon brush excessively to wear away, and causes burn-down of electric motor, and often because of the required different torque values of uncontrollable different screws, and cause the sliding tooth of screw.Full semi-automatic electric bottle opener opens and closes, brakes with the electronic circuit control motor usually, when reaching setting locking torque value, cuts off motor power by electronic circuit, and makes motor braking with feedback voltage.Yet because of the electronic circuit complexity, in use fault is frequent thereby cause electric screw driver, is difficult to increase work efficiency.The applicant discloses a kind ofly with mechanical autocontrol mode automatic cut-off motor power supply at Chinese patent 97244098.5 for this reason, and utilizes motor inertia to stop accurate automatic electric bottle opener with solenoidoperated cluthes.The accurate motor bottle opener automatically of this structure must repeat escape by the mat clutch because the brakeless structure makes motor in whole braking procedure, and motor is stopped operating, and not only can not control the torque value of bottle opener exactly, and influence the service life of bottle opener.
The purpose of this utility model provide a kind of simple in structure, volume is little, can automatic cut-off motor power supply, motor can be braked, to improve bottle opener service life and accurately to confirm the accurate automatic electric bottle opener of mechanical autocontrol of locking torsion rapidly.
The utility model comprises screwdriver structure, mechanical type control drives structure and brake structure.Screwdriver structure and brake structure are located at the end, the top of mechanical type control drives structure respectively.Brake structure comprises brake disc, flexible member, slide, fixed head, electric switch and push jack.One end of brake disc is a disk, and its other end is a round bar.Slide is provided with central through hole.The push jack two ends are angle and extend holding end and effect end.Brake disc is connected with the striker of its disk with mechanical type control drives structure, and it is relative with mechanical type control drives structure rotary blade plane with its rubbing surface, the brake disc round bar is slidingly mounted in the slide central through hole with the flexible member of its periphery of suit, fixed head and electric switch are fixedly mounted on the slide both sides respectively, push jack is journaled on the fixed head, and makes its holding end and effect end contact with brake disc round bar termination and electric switch shell fragment respectively.
Because the utility model comprises mechanical type control drives structure and is located at the screwdriver structure and the brake structure on its end, top respectively.Brake structure comprises that two ends are respectively the brake disc of disk and round bar, flexible member, slide, fixed head, electric switch and push jack.The push jack two ends are angle and extend holding end and effect end.Brake disc is connected with mechanical type control drives structure, its round bar end is slidingly mounted on the slide with the flexible member of its periphery of suit, fixed head and electric switch are installed in the slide both sides, push jack is journaled on the fixed head, and makes its holding end and effect end contact with brake disc round bar termination and electric switch shell fragment respectively.When screw reaches predetermined torque value, unclamp the utility model, the striker of control electric switch moves down in the mechanical type control drives structure, at this moment, act on external force disappearance on the push jack holding end, push jack is restored for the center negative side rotates with the pivot, make the shell fragment of effect end release electric switch on it, cut off motor power.Meanwhile, the brake disc that is connected with mechanical type control drives structure striker in slide under the effect of flexible member spring return power with striker to bottom offset, and contact with the rotary blade of brake disc disk and mechanical type control drives structure, make motor braking, enter blocking.Not only simple in structure, volume is little, can automatic cut-off motor power supply, motor can be braked rapidly, improving bottle opener service life and accurately to confirm locking torsion, thereby reach the purpose of this utility model.
Fig. 1, be the utility model decomposition texture schematic isometric.
Fig. 2, be the utility model structural representation profile.
Fig. 3, be the utility model structural representation profile.
Fig. 4, be the utility model operating state schematic diagram (press down screwdriver structure, start mechanical type control drives structure, when the electric screw driver operation is initial).
Fig. 5, be the utility model operating state schematic diagram (when torsion reaches the disengaging of setting value, clutch).
Fig. 6, be the utility model operating state schematic diagram when braking (unclamp electric screw driver, cutting machine formula control drives structure power supply and).
Fig. 7, be the utility model operating state schematic diagram when preparing to restore (screwdriver structure leaves screw, mechanical type control drives structure) to reset condition shown in Figure 3.
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1 and Figure 2, the utility model comprises screwdriver structure 1, mechanical type control drives structure 2 and brake structure 5.Screwdriver structure has driver base 10, and its two ends system has cover portion and chimeric surface 11 respectively, and cover portion perisporium is provided with the radial hole 12 that is embedded steel ball 13, when being arranged in cover portion when screwdriver head, locatees with steel ball 13.Cover portion periphery is provided with annular groove 14, and cover portion is installed in the axle sleeve 16, and prevents that with the C ring 15 that is flush-mounted in the annular groove 14 axle sleeve 16 from coming off.The chimeric surface 11 of driver base 10 is provided with recess.
Mechanical type control drives structure 2 comprises torsion tube 20, gear cylinder 30 and motor 40.Torsion tube 20 has two cover portions, and an end cover portion has the external screw thread that is spirally connected with torsion ring 21, and other end cover portion has the internal thread that is spirally connected with gear cylinder 30, and in this end cover portion flexible member 22 is set, with flexible member 22 preset torque value.In flexible member 22, wear in regular turn and hit cover 23 and connecting axle 24.Connecting axle 24 1 ends are provided with the protuberance with the recess tabling of driver base 10 chimeric surfaces 11, and nearly protuberance periphery is provided with annular groove 26.The sheathed flexible member 28 of this end periphery, and with C ring 27 flexible member 28 is positioned on the connecting axle 24.Mutually combine with the protuberance of connecting axle 24 and the recess of driver base 10 chimeric surfaces 11, drive driver base 10 and screwdriver head rotation through connecting axle 24 by motor 40.Connecting axle 24 stage casings are provided with the radial direction through hole 241 of inserting for two steel balls 242.The other end of connecting axle 24 is for being provided with the cover portion of flexible member 25 in it.Hit in cover 23 the end and be provided with groove 231, and be resisted against down on the clutch 32 with this end, its other end then pushes against flexible member 28.
Brake structure 5 is arranged at the top of motor 40, and it comprises brake disc 50, flexible member 501, slide 51, push jack 52, fixed head 53 and electric switch 54.One end of brake disc 50 is a disk, and its central authorities have the groove that combines with striker 41 in the motor 40, and its other end is a round bar.Flexible member 501 is set in the round bar periphery.Slide 51 is provided with central through hole.Push jack 52 two ends are angle and extend holding end 522 and effect end 523.Brake disc 50 is connected with the striker 41 of its disk with mechanical type control drives structure 2, and it is relative with rotary blade 42 planes of mechanical type control drives structure 2 with its rubbing surface, the round bar of brake disc 50 is slidingly mounted in slide 51 central through holes with the flexible member 501 of its periphery of suit, fixed head 53 and electric switch 54 are fixedly mounted on slide 51 both sides respectively, push jack 52 is journaled on the fixed head 53 with pivot 521, and makes its holding end 522 and effect end 523 contact with brake disc 50 round bar terminations and electric switch 54 shell fragments 541 respectively.
During action, as shown in Figure 3, the utility model is holding state originally.
As shown in Figure 4, when depressing the utility model, striker 41 makes brake disc 50 pressuring elastic elements 501 to top offset in the motor 40, and makes upwards rectilinear motion in slide 51.At this moment, the round bar on brake disc 50 tops is replaced the holding end 522 of push jack 52, making push jack 52 is that rotate at the center with pivot 521, impel the shell fragment 541 of its effect end 523 extruding electric switches 54, just connect the power supply of motor 40, starter motor 40, meanwhile connecting axle 24, steel ball 242, C ring 27, driver base 10 by upwards extruding (4mm), contact with last clutch 35 together.
As shown in Figure 5, torque value is set by flexible member 22, when reaching setting value, steel ball 242, down clutch 32, hit cover 23, plane bearing 33 rises, and forces steel ball 242 to prepare to enter in the groove 231 that hits cover 23.Flexible member 28 also promotes striker 34 simultaneously, so that steel ball 242 pushes in the groove 231 that hits cover 23.
As shown in Figure 6, when unclamping the utility model, striker 41 is to bottom offset in the motor 40, and the elastic restoring force of flexible member 501 makes brake disc 50 synchronously to bottom offset in the slide 51.At this moment, act on external force disappearance on push jack 52 holding ends 522, making push jack 52 is that center negative side rotation is restored with pivot 521, make the shell fragment 541 of effect end 523 release electric switches on it, cut off motor 40 power supplys, and contact with the rubbing surface of the brake disc 50 disks rotary blade 42 with mechanical type control drives structure 2, make motor 40 enter blocking.When steel ball 242 breaks away from the groove 341 of strikers 34 and when entering in the groove 231 that hits cover 23, forces striker 34,41 to descend, at this moment, motor 40 is finished locking by ON change OFF.
As shown in Figure 7, after screwdriver head breaks away from screw, force flexible member 25 to promote connecting axle 24, steel ball 242, C ring 27, driver base 10 declines (4mm) toward the screwdriver head direction, be returned to initial point, and striker 34 does not descend, and makes steel ball 242 prepare to enter in the groove 341 of striker 34.At last, promote to hit cover 23 by flexible member 28, and force steel ball 242 to enter in the groove 341 of striker 34, make the utility model return to former holding state.
Claims (1)
1, the accurate automatic electric bottle opener of a kind of mechanical autocontrol, it comprises screwdriver structure and mechanical type control drives structure; Screwdriver structure is located at the bottom of mechanical type control drives structure, it is characterized in that it also comprises the brake structure of being located at mechanical type control drives structure top; Brake structure comprises brake disc, flexible member, slide, fixed head, electric switch and push jack; One end of brake disc is a disk, and its other end is a round bar; Slide is provided with central through hole; The push jack two ends are angle and extend holding end and effect end; Brake disc is connected with the striker of its disk with mechanical type control drives structure, and it is relative with mechanical type control drives structure rotary blade plane with its rubbing surface, the brake disc round bar is slidingly mounted in the slide central through hole with the flexible member of its periphery of suit, fixed head and electric switch are fixedly mounted on the slide both sides respectively, push jack is journaled on the fixed head, and makes its holding end and effect end contact with brake disc round bar termination and electric switch shell fragment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207514 CN2336925Y (en) | 1998-07-21 | 1998-07-21 | Mechanical self-controlling quasi-automatic electric screw-driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207514 CN2336925Y (en) | 1998-07-21 | 1998-07-21 | Mechanical self-controlling quasi-automatic electric screw-driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336925Y true CN2336925Y (en) | 1999-09-08 |
Family
ID=33963420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98207514 Expired - Fee Related CN2336925Y (en) | 1998-07-21 | 1998-07-21 | Mechanical self-controlling quasi-automatic electric screw-driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336925Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687768A (en) * | 2018-12-29 | 2019-04-26 | 深圳市越疆科技有限公司 | A kind of detection method, device and the controller of firing pin type band-type brake |
-
1998
- 1998-07-21 CN CN 98207514 patent/CN2336925Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687768A (en) * | 2018-12-29 | 2019-04-26 | 深圳市越疆科技有限公司 | A kind of detection method, device and the controller of firing pin type band-type brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |