CN204935496U - A kind of gear drive screwdriver - Google Patents
A kind of gear drive screwdriver Download PDFInfo
- Publication number
- CN204935496U CN204935496U CN201520641869.4U CN201520641869U CN204935496U CN 204935496 U CN204935496 U CN 204935496U CN 201520641869 U CN201520641869 U CN 201520641869U CN 204935496 U CN204935496 U CN 204935496U
- Authority
- CN
- China
- Prior art keywords
- handle
- driven wheel
- knife bar
- gear
- gear drive
- 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.)
- Withdrawn - After Issue
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a kind of gear drive screwdriver, it comprises handle and knife bar, is provided with driven wheel, forward gear in this handle; Described driven wheel and the same gear shaft of described forward gear are fixed, and described knife bar upper end is provided with a knife bar driven wheel, and described knife bar driven wheel can rotate to drive knife bar with forward gears meshing.Relative to prior art, the utility model gear drive screwdriver adopts the structure of gear drive knife bar, when working space is narrow and small, and operation i.e. laborsaving convenience but also safety.
Description
Technical field
The utility model relates to a kind of common tool, particularly relates to a kind of gear drive screwdriver.
Background technology
Screwdriver is the fastened by screw commonly used of people and removal tool, but existing conventional screwdriver structure is more single, and when operation narrow space, turn handle is not only required great effort with fastening or the operation of removal screw, inconvenient, misoperation also easy scratch hand.Meanwhile, conventional screwdriver can only refute the cutter head connecing the shapes such as a word, cross, hexagonal on knife bar, and function is also more single.
Utility model content
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, provides a kind of efficient, laborsaving, safety, the gear drive screwdriver that working method is various.
The utility model is achieved through the following technical solutions: a kind of gear drive screwdriver, comprises handle and knife bar.Driven wheel and forward gear is provided with in this handle, described driven wheel and the same gear shaft of forward gear are fixed, described knife bar upper end is provided with a knife bar driven wheel, and described knife bar driven wheel can rotate to drive this knife bar with this forward gears meshing.
Relative to prior art, the utility model gear drive screwdriver adopts the structure of gear drive knife bar, when working space is narrow and small, and operation i.e. laborsaving convenience but also safety.
Further, described gear drive screwdriver, also comprises one and is arranged on reverse gear in handle.This reverse gear and the same gear shaft of this forward gear are fixed, and lay respectively at the left and right sides of described knife bar driven wheel, described gear shaft is erected on handle to movable transverse, and can move left and right on handle, engage with the described knife bar driven wheel of knife bar upper end respectively to make described forward gear or reverse gear.
Further, described gear drive screwdriver, also comprises a tooth bar.Described tooth bar is longitudinally arranged, the engagement of its sawtooth and described driven wheel.
Further, described gear drive screwdriver, also comprises push rod and one first spring of a horizontally set.The upper end of described tooth bar connects described push rod, and lower end connects described first spring, and described first spring is fixed on handle, and described push rod crosses out outside handle, and can slide up and down on handle.
Further, described gear drive screwdriver, also comprises a brake block, a brake baffle and one second spring; Described brake block length is greater than the sawtooth height of described driven wheel, and its inner end puts in and is adjacent to the recess of the sawtooth at described driven wheel; Described brake baffle is adjacent to the outer end of described brake block and is fixed on described handle; One end of described second spring is connected with the outer end of described brake block, and the other end is fixed on described handle.
Further, the bottom of described knife bar is provided with separable cutter head.Only need more this cutter head to be changed into drill bit just can substitute conventional hand drill to hole, function is more various.
Further, described handle has a groove, described groove crosses described handle side, and described push rod can slide up and down in described groove.
In order to the utility model can be understood more clearly, illustrate below with reference to accompanying drawing and set forth preferably embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the utility model gear drive screwdriver.
Fig. 2 is the structural representation of handle in Fig. 1.
Fig. 3 is the braking principle schematic diagram of driven wheel in Fig. 2.
Detailed description of the invention
Please refer to Fig. 1, Fig. 2 and Fig. 3, wherein, Fig. 1 is the schematic perspective view of the utility model gear drive screwdriver, and Fig. 2 is the structural representation of handle in Fig. 1, and Fig. 3 is the braking principle schematic diagram of driven wheel in Fig. 2.
This utility model gear drive screwdriver comprises knife bar 10 and handle 20.This knife bar 10 longitudinally arranges and an end is stretched in the handle 20 of this hollow.
Described knife bar 10 is provided with knife bar driven wheel 12 and a cutter head 14.This knife bar driven wheel 12 is fixedly installed on the end stretched in this handle 20 of this knife bar 10, and this cutter head 14 separable is arranged on the other end of this knife bar 10.
Described handle 20 is provided with push rod 21 and a gear shaft 22.On the sidewall of this handle 20, symmetry has a groove, and described push rod 21 is horizontally through this groove, and its end is stretched out outside this handle 20, and this push rod 21 can slide up and down in described groove; This gear shaft 22 is arranged on the below of this push rod 21, and it is horizontally through the inner chamber of this handle 20, and end is stretched out outside this handle 20, and this gear shaft 22 can move left and right by this handle 20 relatively.
Driver element 23 and a brake unit 24 is provided with in the inner chamber of described handle 20.This driver element 23 and brake unit 24 act on respectively and make described knife bar 10 screwing screw clockwise, counterclockwise Unscrewed screw.
Described driver element 23 comprises driven wheel 231, forward gear 232, reverse gear 233, tooth bar 234 and one first spring 235.This driven wheel 231, forward gear 232 and reverse gear 233 are axle with described gear shaft 22 and are fixed on described gear shaft 22, and described knife bar driven wheel 12 is between this forward gear 232 and this reverse gear 233.Moving left and right this gear shaft 22 can make this forward gear 232 or reverse gear 233 engage with the described knife bar driven wheel 12 of knife bar 10 upper end respectively.This tooth bar 234 longitudinally arranges and engages with described driven wheel 231, and its one end is connected with described push rod 21, and the other end is connected with this first spring 235 be fixed on handle 20.
Described brake unit 24 comprises brake block 241, brake baffle 242 and one second spring 243.The length of this brake block 241 is greater than the sawtooth height of described driven wheel 231, and its inner end puts in described driven wheel 231 and is adjacent to the recess of the sawtooth at described driven wheel 231; This brake baffle 242 is adjacent to the outer end of this brake block 241 and is fixed on described handle 20; One end of this second spring 243 is connected with the outer end of this brake block 241, and the other end is fixed on described handle 20.When driven wheel 231 turns clockwise, after this driven wheel 231 takes this brake block 241 out of, this brake block 241 is rebounded by the elastic force of this second spring 243 again and resets, and the clockwise direction of this driven wheel 231 can not be hindered to rotate; When this driven wheel 231 is rotated counterclockwise, because this brake block 241 is stopped by this brake baffle 242, block this driven wheel 231 and can not continue to rotate, thus ensure that this driven wheel 231 can only rotate clockwise.
The application process of the utility model gear drive screwdriver in real work is as follows:
When needs tighten the screws, first stir described gear shaft 22, described forward gear 232 is engaged with described knife bar driven wheel 12, then described push rod 21 is lifted, this push rod 21 is with carry-over bar 234, driven wheel 231, forward gear 232 and knife bar driven wheel 12, thus drives knife bar 10 to turn clockwise; When loosening push rod 21, the first spring 235 makes this tooth bar 234 this brake baffle 242 simultaneously that resets stop brake block 241, makes driven wheel 231 can not be stressed and reverse counterclockwise, and then knife bar 10 can not be reversed.This push rod 21 of lift repeatedly just can make described knife bar 10 continue to turn clockwise, thus tighten the screws.
When needs Unscrewed screw, first stir described gear shaft 22, described reverse gear 233 is engaged with described knife bar driven wheel 12, then described push rod 21 is lifted, this push rod 21 is with carry-over bar 234, driven wheel 231, reverse gear 233 and knife bar driven wheel 12, thus drives knife bar 10 to be rotated counterclockwise; When loosening push rod 21, first spring 235 makes this tooth bar 234 this brake baffle 242 simultaneously that resets stop brake block 241, make driven wheel 231 can not be stressed and reverse counterclockwise, and then knife bar 10 can not be reversed, this push rod 21 of lift repeatedly just can make this knife bar 10 continue to be rotated counterclockwise, thus Unscrewed screw.
Relative to prior art, the utility model gear drive screwdriver adopts hand drive gear again by the structure of gear drive knife bar, and when working space is narrow and small, operation i.e. laborsaving convenience but also safety, replacing cutter head can substitute drill bit and hole, and function is more various.
The utility model is not limited to above-mentioned embodiment, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (7)
1. a gear drive screwdriver, comprises handle and knife bar, it is characterized in that: be provided with driven wheel, forward gear in described handle; Described driven wheel and the same gear shaft of described forward gear are fixed, and described knife bar upper end is provided with a knife bar driven wheel, and described knife bar driven wheel can rotate to drive knife bar with forward gears meshing.
2. gear drive screwdriver as claimed in claim 1, it is characterized in that: also comprise one and be arranged on reverse gear in handle, described reverse gear and the same gear shaft of described forward gear are fixed, and lay respectively at the left and right sides of described knife bar driven wheel, the horizontal adjustable shelf of described gear shaft is located on handle, and can move left and right on handle, engage with the described knife bar driven wheel of knife bar upper end respectively to make described forward gear or reverse gear.
3. the gear drive screwdriver according to any one of claim 1 or 2, is characterized in that: also comprise a tooth bar, and described tooth bar is longitudinally arranged, the engagement of its sawtooth and described driven wheel.
4. gear drive screwdriver as claimed in claim 3, it is characterized in that: the push rod and one first spring that also comprise a horizontally set, the upper end of described tooth bar connects described push rod, lower end connects described first spring, described first spring is fixed on handle, described push rod crosses out outside handle, and can slide up and down on handle.
5. gear drive screwdriver as claimed in claim 4, is characterized in that: also comprise a brake block, a brake baffle and one second spring; Described brake block length is greater than the sawtooth height of described driven wheel, and its inner end puts in and is adjacent to the recess of the sawtooth at described driven wheel; Described brake baffle is adjacent to the outer end of described brake block and is fixed on described handle; One end of described second spring is connected with the outer end of described brake block, and the other end is fixed on described handle.
6. gear drive screwdriver as claimed in claim 5, is characterized in that: the bottom of described knife bar is provided with separable cutter head.
7. gear drive screwdriver as claimed in claim 6, it is characterized in that: described handle has a groove, described groove crosses described handle side, and described push rod can slide up and down in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641869.4U CN204935496U (en) | 2015-08-24 | 2015-08-24 | A kind of gear drive screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641869.4U CN204935496U (en) | 2015-08-24 | 2015-08-24 | A kind of gear drive screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204935496U true CN204935496U (en) | 2016-01-06 |
Family
ID=55002951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520641869.4U Withdrawn - After Issue CN204935496U (en) | 2015-08-24 | 2015-08-24 | A kind of gear drive screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204935496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082036A (en) * | 2015-08-24 | 2015-11-25 | 洪超 | Screwdriver driven by gear |
-
2015
- 2015-08-24 CN CN201520641869.4U patent/CN204935496U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082036A (en) * | 2015-08-24 | 2015-11-25 | 洪超 | Screwdriver driven by gear |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20170728 |