CN108581913A - A kind of electric screwdriver - Google Patents
A kind of electric screwdriver Download PDFInfo
- Publication number
- CN108581913A CN108581913A CN201810431752.1A CN201810431752A CN108581913A CN 108581913 A CN108581913 A CN 108581913A CN 201810431752 A CN201810431752 A CN 201810431752A CN 108581913 A CN108581913 A CN 108581913A
- Authority
- CN
- China
- Prior art keywords
- electric screwdriver
- bracket panel
- master
- pcb board
- shell
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Abstract
The invention discloses a kind of electric screwdrivers,Including the internal shell with cavity,Shell includes the protecgulum of front end,The handle of middle-end and the rear cover of tail end,Output shaft hole is provided on protecgulum,Execution unit is provided on handle,After cover and be provided with installing port and mounting hole,It is provided with output shaft in the cavity of shell,Child resistant device,Mounting framework,Powder metallurgy reduction gear box,Small pcb board,Motor,Main PCB plate and main battery,By using the screwdriver of above structure,Pass through the position correspondence of driver plate and the cooperation of switch column,And the feature for combining children's finger small,Make children that can not press switch column,This equipment can not be opened,Realize three-level protection,Reaching can prevent children because curiosity is to self-inflicted irreversible injury,Also it can prevent it from using damage of the screwdriver to indoor article,Simultaneously,This is simple in structure,Low manufacture cost,It can be widely used in a variety of places.
Description
Technical field
The present invention relates to power tools technology field more particularly to a kind of electric screwdrivers.
Background technology
Screwdriver is a kind of tool for twisting screw to force its in place, and usually there are one thin sphenocephalies, can insert
Enter in the line of rabbet joint or recess of screw cap, screwdriver mainly has a word（Negative sign）And cross（Positive sign）Two kinds, traditional screwdriver
Usually Manual structure needs worker by hand by screw means to workpiece when needing to install screw on workpiece, not only this
A process is time-consuming and laborious, and service efficiency is relatively low, and existing market is the screwdriver for occurring successively some electric models, still
Above without any protective device, especially these small-sized electric tools more and more enter family, and are always avoided in family
The not presence of child, after not having the screwdriver of protective device once still taken, not only causes children itself irreversible
The injury turned, and also have certain damageability to indoor article, there are larger security risks.
Invention content
The present invention can prevent children injured in view of the shortcomings of the prior art, providing one kind, and prevent children to indoor object
The electric screwdriver of product damage.
In order to solve the above technical problems, the present invention is addressed by the following technical programs：A kind of electric screwdriver, including
Inside has the shell of cavity, and the shell includes the rear cover of the protecgulum of front end, the handle of middle-end and tail end, the protecgulum
On be provided with output shaft hole, be provided on the handle including boot portion, positive and negative rotation push away torsion and electricity display lamp
Execution unit covers the installation being provided with for adjusting torque to dial torsion installing port outstanding and circumscription socket in shell after described
Hole is provided with output shaft, child resistant device, mounting framework, powder metallurgy reducing gear in the cavity of the shell from front to back
Roller box, small pcb board, motor, main PCB plate and main battery, the child resistant device include at least three self-locking type switch
Column, the driver plate with strip-shaped hole, level sensor, clamping mechanism and secondary cell, the switch column bottom pass through company
Fishplate bar connects, and the connecting plate can be contacted across driver plate downlink with the small pcb board, the level sensor
It is set to one end of the connecting plate, the clamping mechanism is set to the other end of the connecting plate, and the secondary cell is set
It is placed in the inside of the connecting plate, the front end of the output shaft protrudes from outside the shell, the rear end of the output shaft and institute
The powder metallurgy reduction gear box connection stated, the powder metallurgy reduction gearing box back pass through the mounting framework front end
Block and fixes and connect with by the fixed motor of the mounting framework, the small pcb board and the preventing child
The position that protection unit corresponds to the boot portion is arranged on the mounting framework at the motor top position so that small
Pcb board is located at below the child resistant device, and the main PCB plate is installed on the top of the mounting framework rear end, position
The skeleton intracavitary of the mounting framework is provided with main battery mounting portion, the pcb board is electricity with small pcb board and motor
Connection.
Driver plate support column is additionally provided on the mounting framework.
The driver plate support column includes master support column and bracket panel support column.
The driver plate includes master and the bracket panel positioned at both sides, and dentation knot is integrally provided on the master and bracket panel
Structure is provided with the master supported hole that can accommodate master support column on the bottom surface of the master both sides, and the bracket panel upper surface is set
It is equipped with mark point, the lower surface of the bracket panel is provided with the bracket panel supported hole that can accommodate bracket panel support column, the bracket panel and master
Disk engages.
The stepped structure of the rear cover, the installing port are set to the transition position of step structure, the peace
Dress hole is set to the top of step structure.
The protecgulum is clamping with the handle, and the rear cover is to be bolted with the handle.
It is corresponding that the main PCB plate pushes away the installation site of torsion with the positive and negative rotation.
The switch column is cylinder.
It is provided with silica gel sheath at the top of the switch column.
Compared with prior art, the present invention has the advantages that：By using the screwdriver of above structure, by dialling
The position correspondence of disk and the cooperation of switch column, and the feature for combining children's finger small, make children that can not press switch column, i.e.,
This equipment can not be opened, realizes three-level protection, reaching can prevent children because curiosity is to self-inflicted irreversible injury, also can
Enough prevent it from using damage of the screwdriver to indoor article, meanwhile, this simple in structure, low manufacture cost being capable of extensive utilization
In a variety of places.
Description of the drawings
Fig. 1, stereogram of the present invention 1.
Fig. 2, stereogram of the present invention 2.
Fig. 3, diagrammatic cross-section of the present invention.
Fig. 4, child resistant device lateral structure schematic diagram of the present invention.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings.
Referring to Fig. 1 to Fig. 4, a kind of electric screwdriver, including the internal shell with cavity, shell includes the protecgulum of front end
1, the rear cover 3 of the handle 2 and tail end of middle-end is provided with output shaft hole on protecgulum 1, be provided on handle 2 including boot portion 21,
Positive and negative rotation pushes away the execution unit turned round including 22 and electricity display lamp 23, is provided on rear cover 3 and is turned round for adjusting torque to dial in shell
The mounting hole 32 of 31 installing ports and circumscription socket outstanding is provided with output shaft 41, children in the cavity of shell from front to back
Protective device 42, mounting framework 43, powder metallurgy reduction gear box 44, small pcb board 45, motor 46, main PCB plate 47 and main electricity
Pond 49, child resistant device include at least three self-locking type switch column 421, the driver plate with strip-shaped hole, level sensor
423, clamping mechanism 424 and secondary cell 425,421 bottom of switch column are connected by connecting plate 48, and connecting plate 48 can be passed through and be dialled
Disk downlink is contacted with small pcb board 45, and level sensor 423 is set to one end of connecting plate 48, and clamping mechanism 424 is set to
The other end of connecting plate 48, secondary cell 425 are set to the inside of connecting plate 48, and the front end of output shaft 41 protrudes from outside shell, defeated
The rear end of shaft 41 is connect with powder metallurgy reduction gear box 44, and 44 rear end of powder metallurgy reduction gear box passes through mounting framework 43
Front end card and fixation are simultaneously connect with by 43 fixed motor 46 of mounting framework, and small pcb board 45 and child resistant device correspond to
It is arranged on the mounting framework 43 at 46 top position of motor in the position of boot portion 21 so that small pcb board 45 is located at preventing child
Below protection unit, main PCB plate 47 is installed on the top of 43 rear end of mounting framework, and the skeleton intracavitary positioned at mounting framework 43 is provided with
Main battery mounting portion, pcb board 47 are to be electrically connected with small pcb board 45 and motor 46.
Driver plate support column is additionally provided on mounting framework 43, driver plate support column includes master support column 51 and bracket panel support
Column 52, driver plate include master 4221 and the bracket panel 4222 positioned at both sides, and tooth is integrally provided on master 4221 and bracket panel 4222
Shape structure is provided with the master supported hole that can accommodate master support column 51,4222 upper table of bracket panel on the bottom surface of 4221 both sides of master
Face is provided with mark point, and the lower surface of bracket panel 4222 is provided with the bracket panel supported hole that can accommodate bracket panel support column 52, bracket panel 4222
It is engaged with master 4221,3 stepped structure of rear cover, installing port is set to the transition position of step structure, and mounting hole 32 is arranged
In the top of step structure, protecgulum 1 and handle 2 are clamping, and rear cover 3 is bolted with handle 2, main PCB plate 47 with it is positive and negative
Turn to push away the installation site correspondence for turning round 22, switch column 421 is cylinder, and 421 top of switch column is provided with silica gel sheath.
In above-described embodiment, by the installation main battery 49 inside main battery mounting portion, it can be used for the power supply of screwdriver,
The work and stopping for switching on and off to realize screwdriver with small pcb board 45 are realized by started by press portion, pass through powder
Metallurgical reduction gear box 44 realizes the three-step gear shift of output shaft 41, and positive and negative rotation, which pushes away, turns round 22 adjustings for being used for output shaft positive and negative rotation, outside
Plug receptacle can be used for battery charging etc.；Child resistant device is set at boot portion position：3 self-lockings are set at boot portion
Switch column 421 realizes and switched on and off with small pcb board 45, and the part leakage of bracket panel 4222 is in outside handle 2, master 4221
In shell, Cheng Qian is crossed herein, needs, by stirring bracket panel 4222, the strip-shaped hole on master 4221 to be allocated to and connecting plate 48
Consistent direction, while 3 self-locking type switch columns 421 are pressed, make its downlink, contacts to connect circuit with small pcb board 45；Its
Preventing mechanism is：Primary protection needs, by stirring bracket panel 4222, the strip-shaped hole on master 4221 to be allocated to and connecting plate 48 1
The direction of cause, 4222 upper surface of bracket panel are provided with mark point, can control whether strip-shaped hole has been allocated to and has connected according to mark point
The position of fishplate bar 48, children are not easy to observe this point, make it that can not open screwdriver；If children are unintentionally by strip-shaped hole
It is allocated to the direction consistent with connecting plate 48, then there is the risk for touching small pcb board 45, therefore is provided with two level protection, connecting plate
48 one end are provided with level sensor 423, since the hand of children is smaller, once can not press 3 self-lockings simultaneously and open
Column 421 is closed, therefore, when pressing 2 self-locking type switch columns 421 of wherein 1 goods, connecting plate 48 can incline towards the direction of pressing
Tiltedly, at this point, level sensor 423 senses the inclination of position, clamping mechanism 424 is connected, makes its block from connecting plate 48
Middle stretching, the direction that block stretches out is just vertical with the direction of strip-shaped hole, makes connecting plate 48 that can not be continued traveling downwardly by strip-shaped hole,
To prevent the risk for touching small pcb board 45, reach the two level protection to children, clamping mechanism 424 and horizontal position pass
The power supply of sensor 423 is provided by secondary cell 425, is arranged with spring on 3 self-locking type switch columns 421, one is played to switch column
Fixed cushioning effect.
Protection scope of the present invention includes but not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, any replacement being readily apparent that those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (9)
1. a kind of electric screwdriver, including the internal shell with cavity, which is characterized in that the shell includes the protecgulum of front end
（1）, middle-end handle（2）And the rear cover of tail end（3）, the protecgulum（1）On be provided with output shaft hole, the handle
（2）On be provided with including boot portion（21）, positive and negative rotation push away torsion（22）And electricity display lamp（23）Execution unit inside, it is described
Rear cover（3）On be provided in shell adjust torque dial turn round（31）The mounting hole of installing port and circumscription socket outstanding
（32）, it is provided with output shaft from front to back in the cavity of the shell（41）, child resistant device（42）, mounting framework（43）、
Powder metallurgy reduction gear box（44）, small pcb board（45）, motor（46）, main PCB plate（47）And main battery（49）, described
Child resistant device includes the switch column of at least three self-locking（421）, driver plate, level sensor with strip-shaped hole
（423）, clamping mechanism（424）And secondary cell（425）, the switch column（421）Bottom passes through connecting plate（48）Connection, institute
The connecting plate stated（48）Driver plate downlink and the small pcb board can be passed through（45）Contact, the level sensor
（423）It is set to the connecting plate（48）One end, the clamping mechanism（424）It is set to the connecting plate（48）It is another
End, the secondary cell（425）It is set to the connecting plate（48）Inside, the output shaft（41）Front end protrude from it is described
Shell outside, the output shaft（41）Rear end and the powder metallurgy reduction gear box（44）Connection, the powder smelting
Golden reduction gear box（44）Rear end passes through the mounting framework（43）After front end card and fixation and pass through the mounting framework
（43）The fixed motor（46）Connection, the small pcb board（45）And the child resistant device is corresponding to described
Boot portion（21）Position be arranged in the motor（46）The mounting framework at top position（43）On so that small pcb board
（45）Below the child resistant device, the main PCB plate（47）It is installed on the mounting framework（43）Rear end
Top is located at the mounting framework（43）Skeleton intracavitary be provided with main battery mounting portion, the pcb board（47）With it is small
Pcb board（45）And motor（46）It is electrical connection.
2. a kind of electric screwdriver according to claim 1, which is characterized in that the mounting framework（43）On also set up
There is driver plate support column.
3. a kind of electric screwdriver according to claim 2, which is characterized in that the driver plate support column includes master support
Column（51）And bracket panel support column（52）.
4. a kind of electric screwdriver according to claim 3, which is characterized in that the driver plate includes master（4221）With
Bracket panel positioned at both sides（4222）, the master（4221）And bracket panel（4222）On be integrally provided with dentalation, the master
Disk（4221）Master support column can be accommodated by being provided on the bottom surface of both sides（51）Master supported hole, the bracket panel（4222）On
Surface is provided with mark point, the bracket panel（4222）Lower surface be provided with and can accommodate bracket panel support column（52）Bracket panel support
Hole, the bracket panel（4222）With master（4221）Engagement.
5. a kind of electric screwdriver according to claim 1, which is characterized in that the rear cover（3）Stepped structure,
The installing port is set to the transition position of step structure, the mounting hole（32）It is set to the top of step structure.
6. a kind of electric screwdriver according to claim 1, which is characterized in that the protecgulum（1）With the handle
（2）For clamping, the rear cover（3）With the handle（2）To be bolted.
7. a kind of electric screwdriver according to claim 1, which is characterized in that the main PCB plate（47）With it is described
Positive and negative rotation pushes away torsion（22）Installation site correspond to.
8. a kind of electric screwdriver according to claim 1, which is characterized in that the switch column（421）It is cylinder.
9. a kind of electric screwdriver according to claim 8, which is characterized in that the switch column（421）Top is arranged
There is silica gel sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431752.1A CN108581913B (en) | 2018-05-08 | 2018-05-08 | Electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431752.1A CN108581913B (en) | 2018-05-08 | 2018-05-08 | Electric screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108581913A true CN108581913A (en) | 2018-09-28 |
| CN108581913B CN108581913B (en) | 2022-07-26 |
Family
ID=63636030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810431752.1A Active CN108581913B (en) | 2018-05-08 | 2018-05-08 | Electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108581913B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203305189U (en) * | 2013-06-05 | 2013-11-27 | 浙江金磐机电实业有限公司 | Combined switch for mini-saw |
| CN103707250A (en) * | 2013-12-19 | 2014-04-09 | 宁波甬菲特电子科技有限公司 | Electric screwdriver |
| CN104128904A (en) * | 2014-07-17 | 2014-11-05 | 苏州斯坦科机电有限公司 | Manual-automatic screwdriver |
| US20160136801A1 (en) * | 2014-11-14 | 2016-05-19 | Makita Corporation | Power tool |
-
2018
- 2018-05-08 CN CN201810431752.1A patent/CN108581913B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203305189U (en) * | 2013-06-05 | 2013-11-27 | 浙江金磐机电实业有限公司 | Combined switch for mini-saw |
| CN103707250A (en) * | 2013-12-19 | 2014-04-09 | 宁波甬菲特电子科技有限公司 | Electric screwdriver |
| CN104128904A (en) * | 2014-07-17 | 2014-11-05 | 苏州斯坦科机电有限公司 | Manual-automatic screwdriver |
| US20160136801A1 (en) * | 2014-11-14 | 2016-05-19 | Makita Corporation | Power tool |
| CN105598920A (en) * | 2014-11-14 | 2016-05-25 | 株式会社牧田 | Power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108581913B (en) | 2022-07-26 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |