CN201415383Y - Electric screwdriver - Google Patents
Electric screwdriver Download PDFInfo
- Publication number
- CN201415383Y CN201415383Y CN2009201319428U CN200920131942U CN201415383Y CN 201415383 Y CN201415383 Y CN 201415383Y CN 2009201319428 U CN2009201319428 U CN 2009201319428U CN 200920131942 U CN200920131942 U CN 200920131942U CN 201415383 Y CN201415383 Y CN 201415383Y
- Authority
- CN
- China
- Prior art keywords
- roller
- elastic component
- handle
- torsion
- screw driver
- 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 - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
An electric screwdriver includes a handle as well as a rod arranged in the handle, a reduction gearbox and a motor. The outside of the handle is connected with a torsion adjusting mechanism capable ofadjusting the output torsion of the electric screwdriver; and the torsion adjusting mechanism includes a clutch sleeve, a torsion adjusting ring, an elastic component and a roller, the clutch sleeveis connected with the handle, the torsion adjusting ring is arranged inside the clutch sleeve and in threaded connection with the clutch sleeve, the elastic component is arranged between the torsion adjusting ring and the roller, and the roller is connected with the reduction gearbox. The utility change the magnitude of the elastic force of the elastic component through screwing the torsion adjusting ring, because the torsion adjusting ring and the clutch sleeve are in threaded connection and propped against the elastic component, the torsion adjusting ring doesn't lose easily or change easilyby hand; and the elastic component generates constant pressure and sends to the roller through steel balls, so that the resistance to the reduction gearbox in every impact keeps constant, the outputtorsion of the electric screwdriver in every operation keeps constant, and the high precision of the output torsion of the electric screwdriver is ensured.
Description
Technical field
The utility model relates to a kind of electric screw driver.
Background technology
Traditional electric screw driver is to adjust output torque by rotating the torsion adjustable ring that exposes by hand, but the torsion adjustable ring is not only loosening easily, and easily by the people for a change, the output torque when causing operation produces beats, and can not satisfy the needs of steady production.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of electric screw driver, is intended to solve the not high problem of output torque precision of electric screw driver of the prior art.
The utility model is to realize like this, a kind of electric screw driver, comprise handle of a knife and be located at described handle of a knife interior knife bar, reduction box and motor, one end of described reduction box is connected with described knife bar, the other end is connected with described motor, and the described handle of a knife outside is connected with the torque force adjusting mechanism that can regulate this electric screw driver output torque.
Particularly, described torque force adjusting mechanism comprises clutch bowl, torsion adjustable ring, elastic component, roller, described clutch bowl is connected with described handle of a knife, described torsion adjustable ring is located in the described clutch bowl and is threaded with it, described elastic component is located between described torsion adjustable ring and the roller, and described roller is connected with described reduction box.
Further, offer on the described torsion adjustable ring can with the groove of screwing spanner coupling.
Preferably, described elastic component is a spring.
Preferably, described spring one end is connected with the spring seat of honour, and the other end is connected with spring lower seat, and the described spring seat of honour is connected with described torsion adjustable ring by first steel ball, and described spring lower seat is connected with described roller by second steel ball.
A kind of electric screw driver that the utility model provides, by screwing the torsion adjustable ring of being located in the clutch bowl, change the elastic force size of elastic component, owing to be that internal thread connects between torsion adjustable ring and the clutch bowl, and flexible hold out against, the torsion adjustable ring can not become flexible easily, also be not easy the people for a change, the constant pressure that elastic component produces passes to roller by steel ball, make the each resistance that is subjected to that impacts of reduction box keep constant, output torque is constant when guaranteeing the each operation of electric screw driver, has guaranteed the high accuracy of electric screw driver output torque.
Description of drawings
Fig. 1 is the schematic diagram of the electric screw driver that provides of the utility model embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of electric screw driver that the utility model embodiment provides, comprise handle of a knife 1 and be located at knife bar 11 in the described handle of a knife 1, reduction box 12 and motor 13, one end of described reduction box 12 is connected with described knife bar 11, the other end is connected with described motor 13, described handle of a knife 1 outside is connected with torque force adjusting mechanism 2, described torque force adjusting mechanism 2 comprises clutch bowl 21, torsion adjustable ring 22, elastic component 23, roller 24, described clutch bowl 21 is connected with described handle of a knife 1, described torsion adjustable ring 22 is located in the described clutch bowl 21 and is threaded with it, described elastic component 23 is located between described torsion adjustable ring 22 and the roller 24, and described roller 24 is connected with described reduction box 12.
Particularly, offer on the described torsion adjustable ring 22 can with the groove 221 of screwing spanner coupling, such as the groove that can offer with screwing tools couplings such as inner hexagon spanner, crosspoint tip screwdriver, flat blade screwdrivers.
Particularly, described elastic component 23 is a spring 231, described spring 231 1 ends are connected with the spring seat of honour 25, the other end is connected with spring lower seat 26, the described spring seat of honour 25 is connected with described torsion adjustable ring 22 by first steel ball 27, and described spring lower seat 26 is connected with described roller 24 by second steel ball 28.
A kind of electric screw driver that the utility model provides, in use, screw the torsion adjustable ring of being located in the clutch bowl 21 22, change the elastic force size of spring 231 by the inner hexagon spanner (not shown), clockwise direction is for strengthening elastic force, counterclockwise for reducing elastic force; Owing to be that internal thread connects between torsion adjustable ring 22 and the clutch bowl 21, and there is spring 231 to hold out against, torsion adjustable ring 22 can not become flexible easily, also be not easy the people for a change, the constant pressure that spring 231 produces passes to roller 24 by steel ball 28, make the each resistances that are subjected to that impact of reduction box 12 keep constant, output torque is constant when guaranteeing the each operation of electric screw driver, has guaranteed the high accuracy of electric screw driver output torque.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1, a kind of electric screw driver, comprise handle of a knife and be located at described handle of a knife interior knife bar, reduction box and motor, one end of described reduction box is connected with described knife bar, the other end is connected with described motor, it is characterized in that: the described handle of a knife outside is connected with the torque force adjusting mechanism that can regulate this electric screw driver output torque.
2, a kind of electric screw driver as claimed in claim 1, it is characterized in that: described torque force adjusting mechanism comprises clutch bowl, torsion adjustable ring, elastic component, roller, described clutch bowl is connected with described handle of a knife, described torsion adjustable ring is located in the described clutch bowl and is threaded with it, described elastic component is located between described torsion adjustable ring and the roller, and described roller is connected with described reduction box.
3, a kind of electric screw driver as claimed in claim 2 is characterized in that: offer on the described torsion adjustable ring can with the groove of screwing spanner coupling.
4, a kind of electric screw driver as claimed in claim 3 is characterized in that: described elastic component is a spring.
5, a kind of electric screw driver as claimed in claim 4, it is characterized in that: described spring one end is connected with the spring seat of honour, the other end is connected with spring lower seat, the described spring seat of honour is connected with described torsion adjustable ring by first steel ball, and described spring lower seat is connected with described roller by second steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201319428U CN201415383Y (en) | 2009-05-22 | 2009-05-22 | Electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201319428U CN201415383Y (en) | 2009-05-22 | 2009-05-22 | Electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201415383Y true CN201415383Y (en) | 2010-03-03 |
Family
ID=41791793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201319428U Expired - Lifetime CN201415383Y (en) | 2009-05-22 | 2009-05-22 | Electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201415383Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260032A (en) * | 2014-07-11 | 2015-01-07 | 浙江明磊工具实业有限公司 | Improved electric screwdriver |
| CN108562390A (en) * | 2018-05-23 | 2018-09-21 | 兴机电器有限公司 | Circuit breaker chassis determines torque crank |
-
2009
- 2009-05-22 CN CN2009201319428U patent/CN201415383Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260032A (en) * | 2014-07-11 | 2015-01-07 | 浙江明磊工具实业有限公司 | Improved electric screwdriver |
| CN108562390A (en) * | 2018-05-23 | 2018-09-21 | 兴机电器有限公司 | Circuit breaker chassis determines torque crank |
| CN108562390B (en) * | 2018-05-23 | 2024-05-14 | 兴机电器集团有限公司 | Fixed torque crank of circuit breaker chassis vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
|
| CX01 | Expiry of patent term |