CN207930570U - A kind of screwdriver by magnetic force adjustment torque - Google Patents
A kind of screwdriver by magnetic force adjustment torque Download PDFInfo
- Publication number
- CN207930570U CN207930570U CN201820299322.4U CN201820299322U CN207930570U CN 207930570 U CN207930570 U CN 207930570U CN 201820299322 U CN201820299322 U CN 201820299322U CN 207930570 U CN207930570 U CN 207930570U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- knife bar
- tube
- conductive tube
- magnetic force
- 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
Links
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model is related to a kind of screwdriver adjusting torque by magnetic force, including knife bar, be arranged knife rod head driver bit, be sequentially sleeved at the magnetic conductive tube and magnetic tube of knife bar tail portion from inside to outside；It is provided with multiple magnetic rings that can be rotated in magnetic conductive tube on the knife bar in the axial direction, pressure bearing is also arranged with respectively at the both ends of magnetic conductive tube on the knife bar；At least provided with two through-holes in the magnetic tube, it is provided with multigroup threaded hole corresponding with two through-holes in the axial direction on the magnetic conductive tube；It is respectively arranged with the adjusting bolt being connect with threaded hole in two through-holes；The magnetic tube and magnetic rings are made of ferromagnetic material, and magnetic direction is identical radially distributed；By adjusting the length of magnetic conductive tube and magnetic tube lap magnetic force size can be changed, so as to adjust the size of torque in the utility model, it is not rigid adjustment, so not having abrasion due to being magnetic force adjustment, service life can be greatly improved, ensures installation or assembling quality.
Description
Technical field
The utility model is related to extracting tool fields, refer in particular to a kind of screwdriver by magnetic force adjustment torque.
Background technology
Screwdriver is a kind of tool of common fastening screw；When traditional screwdriver fastening screw, the torque of application and
Tightness is controlled with the feeling of people, and often screw, screwdriver damage caused by the torque of application is excessive can also influence part
Installation or assembling quality even can destroy part；Also occur various adjustable torque screwdrivers currently on the market, such as existing skill
A kind of screwdriver of mechanical adjustable torque is disclosed in art 201120006581.1, is adjusted by the reduction length of adjustment spring
Frictional force of the bottom ratchet wheel between the thrust and upper and lower ratchet of upper ratchet is saved, to achieve the purpose that adjust torque, when setting
In the case of setting torque, when the torque of application is more than the value of setting, bottom ratchet wheel skids automatically on screwdriver, although can protect
Screwdriver and screw are against damages, it can also be ensured that screw tightness degree is consistent, but since upper bottom ratchet wheel wears ratio when skidding
It is more serious, cause service life to be greatly reduced, and usage time is longer, the ratchet of upper bottom ratchet wheel just wears smaller so as to turn round
Square value is less than the value of setting, influences installation or assembling quality.
Utility model content
The utility model aim is for overcome the deficiencies in the prior art and provides a kind of screw by magnetic force adjustment torque
Knife adjusts the size of torque by adjusting magnetic force size, is not rigid adjustment, so not having mill due to being magnetic force adjustment
Damage can greatly improve service life, ensure installation or assembling quality.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of screwdriver by magnetic force adjustment torque,
Including knife bar, be arranged knife rod head driver bit, be sequentially sleeved at the magnetic conductive tube and magnetic tube of knife bar tail portion from inside to outside；
Be provided with multiple uniform placements and the magnetic rings that can be rotated in magnetic conductive tube on the knife bar in the axial direction, on the knife bar
The both ends of magnetic conductive tube are also arranged with pressure bearing respectively；It is along the circumferential direction uniformly placed at least provided with two in the magnetic tube
Through-hole, multigroup uniform placement and threaded hole corresponding with two through-holes are provided on the magnetic conductive tube in the axial direction；Two
The adjusting bolt that can be connect with any group of threaded hole is respectively arranged in the through-hole；The magnetic tube and magnetic rings are by strong
Magnetic material is made, and magnetic direction is identical radially distributed.
Preferably, the surface of the knife bar is provided with torque scale in the axial direction.
Preferably, the head of the knife bar is provided with the tool tip of replaceable different driver bits.
Preferably, multiple magnetic rings are bonded in by seccotine on knife bar.
Preferably, the tail portion of the knife bar is also arranged with the rubber sleeve that section takes the shape of the letter U in magnetic tube.
Preferably, the open end of the rubber sleeve is provided with the conical surface of magnetropism pipe surface transition.
Preferably, the surface of the magnetic tube is provided with annular knurl.
Preferably, the pressure bearing of the magnetic conductive tube outer end is fixed on knife bar by the end face of magnetic conductive tube and the shaft shoulder of knife bar
On, and the pressure bearing of magnetic conductive tube inner end is fixed on by block on knife bar.
Preferably, the pressure bearing is thrust ball bearing or thrust roller bearing.
Preferably, the magnetic conductive tube is made of non magnetic wear-resistant material.
Due to the application of the above technical scheme, the utility model has following advantages compared with prior art：
Screwdriver described in the utility model by magnetic force adjustment torque passes through since knife bar is provided on magnetic conductive tube
The length of magnetic conductive tube and magnetic tube lap is adjusted, magnetic force size can be changed, so as to adjust the size of torque, due to being magnetic force
Adjustment, is not rigid adjustment, so not having abrasion, can greatly improve service life, ensure installation or assembling quality.
Description of the drawings
Technical solutions of the utility model are described further below in conjunction with the accompanying drawings：
Attached drawing 1 is the structural schematic diagram of the screwdriver described in the utility model that torque is adjusted by magnetic force.
Wherein：1, rubber sleeve；2, block；3, magnetic rings；4, threaded hole；5, adjusting bolt；6, magnetic conductive tube；7, magnetic tube；
8, pressure bearing；9, knife bar；10, tool tip；11, driver bit.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Attached drawing 1 is the screwdriver described in the utility model that torque is adjusted by magnetic force, comprising knife bar 9, is arranged in knife bar 9
The driver bit 11 in portion, the magnetic conductive tube 6 and magnetic tube 7 for being sequentially sleeved at 9 tail portion of knife bar from inside to outside；9 upper edge axis of the knife bar
Line direction is provided with multiple uniform placements and can be in the interior magnetic rings 3 rotated of magnetic conductive tube 6, the knife bar 9 the two of magnetic conductive tube 6
End is also arranged with pressure bearing 8 respectively；The through-hole along the circumferential direction uniformly placed at least provided with two in the magnetic tube 7,
Multigroup uniform placement and threaded hole corresponding with two through-holes 4 are provided on the magnetic conductive tube 6 in the axial direction；Two described logical
The adjusting bolt 5 that can be connect with any group of threaded hole 4 is respectively arranged in hole；The magnetic tube 7 and magnetic rings 3 are by strong magnetic
Material is made, and magnetic direction is identical radially distributed, in use, magnetic conductive tube 6 and magnetic tube can be adjusted by adjusting bolt 5
The length of 7 laps changes magnetic force size, to set torque value, when the magnetic force that magnetic tube 7 is generated with magnetic rings 3 is less than
When screw brings the torque of knife bar 9, then magnetic conductive tube 6 will produce relative rotation relative to magnetic tube 7, and the torque that human hand applies is not
It can pass on knife bar 9, knife bar 9 can not be made to rotate, so as to protect the part of driver bit and installation.
Further, the surface of the knife bar 9 is provided with torque scale in the axial direction, is turned round according to torque scale convenient for adjusting
Square size, it is more convenient.
Further, the head of the knife bar 9 is provided with the tool tip 10 of replaceable different driver bits 11, is easily installed not
Same driver bit 11, purposes is wider.
Further, multiple magnetic rings 3 are bonded in by seccotine on knife bar 9, and not only manufacture is easy, and convenient for peace
Dress, avoid because the suction between magnetic rings 3 and knife bar 9 is excessive cause it is difficult to install.
Further, the tail portion of the knife bar 9 is also arranged with the rubber sleeve 1 that section takes the shape of the letter U in magnetic tube 7, and human hand is made to use
Power is convenient, plays the role of anti-skidding.
Further, the open end of the rubber sleeve 1 is provided with the conical surface of 7 surface transition of magnetropism pipe, avoid it is stepped,
So that being not easy stress at rubber sleeve 1 and the ladder of magnetic tube 7.
Further, the surface of the magnetic tube 7 is provided with annular knurl, also functions to anti-skidding effect.
Further, the pressure bearing 8 of 6 outer end of the magnetic conductive tube is fixed on by the end face of magnetic conductive tube 6 and the shaft shoulder of knife bar 9
On knife bar 9, and the pressure bearing 8 of 6 inner end of magnetic conductive tube is fixed on by block 2 on knife bar 9, convenient for assembling, and axial carrying energy
Power is big.
Further, the pressure bearing 8 be thrust ball bearing or thrust roller bearing, it is cheap, using wide.
Further, the magnetic conductive tube 6 is made of non magnetic wear-resistant material, and the knife bar 9 for being equipped with magnetic rings 3 is made to be easy to be inserted into
In magnetic conductive tube 6.
Due to the application of the above technical scheme, the utility model has following advantages compared with prior art：
Screwdriver described in the utility model by magnetic force adjustment torque passes through since knife bar is provided on magnetic conductive tube
The length of magnetic conductive tube and magnetic tube lap is adjusted, magnetic force size can be changed, so as to adjust the size of torque, due to being magnetic force
Adjustment, is not rigid adjustment, so not having abrasion, can greatly improve service life, ensure installation or assembling quality.
The specific application example that the above is only the utility model does not constitute the scope of protection of the utility model any limit
System.Any technical scheme formed by adopting equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (10)
1. a kind of screwdriver by magnetic force adjustment torque, it is characterised in that：Including knife bar, screwdriver in knife rod head is arranged
Head, the magnetic conductive tube and magnetic tube for being sequentially sleeved at knife bar tail portion from inside to outside；It is provided in the axial direction on the knife bar multiple
It uniformly places and the magnetic rings that can be rotated in magnetic conductive tube, pressure axis is also arranged with respectively at the both ends of magnetic conductive tube on the knife bar
It holds；The through-hole along the circumferential direction uniformly placed at least provided with two in the magnetic tube, on the magnetic conductive tube in the axial direction
It is provided with multigroup uniform placement and threaded hole corresponding with two through-holes；Being respectively arranged in two through-holes can be with any one
The adjusting bolt of group threaded hole connection；The magnetic tube and magnetic rings are made of ferromagnetic material, and the identical equal edge of magnetic direction
Radial distribution.
2. the screwdriver according to claim 1 by magnetic force adjustment torque, it is characterised in that：The surface of the knife bar is along axis
Line direction is provided with torque scale.
3. the screwdriver according to claim 2 by magnetic force adjustment torque, it is characterised in that：The head of the knife bar is arranged
There is the tool tip of replaceable different driver bits.
4. the screwdriver according to claim 1 or 2 or 3 by magnetic force adjustment torque, it is characterised in that：Multiple magnetism
Ring is bonded in by seccotine on knife bar.
5. the screwdriver according to claim 4 by magnetic force adjustment torque, it is characterised in that：The tail portion of the knife bar is in magnetic
It is also arranged with the rubber sleeve that section takes the shape of the letter U on property pipe.
6. the screwdriver according to claim 5 by magnetic force adjustment torque, it is characterised in that：The open end of the rubber sleeve
It is provided with the conical surface of magnetropism pipe surface transition.
7. the screwdriver according to claim 6 by magnetic force adjustment torque, it is characterised in that：The surface of the magnetic tube is set
It is equipped with annular knurl.
8. the screwdriver according to claim 7 by magnetic force adjustment torque, it is characterised in that：The pressure of the magnetic conductive tube outer end
Power bearing is fixed on by the end face of magnetic conductive tube and the shaft shoulder of knife bar on knife bar, and the pressure bearing of magnetic conductive tube inner end passes through block
It is fixed on knife bar.
9. the screwdriver according to claim 8 by magnetic force adjustment torque, it is characterised in that：The pressure bearing is thrust
Ball bearing or thrust roller bearing.
10. the screwdriver according to claim 9 by magnetic force adjustment torque, it is characterised in that：The magnetic conductive tube is by non-magnetic
Property wear-resistant material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299322.4U CN207930570U (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299322.4U CN207930570U (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207930570U true CN207930570U (en) | 2018-10-02 |
Family
ID=63653785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820299322.4U Expired - Fee Related CN207930570U (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207930570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608358A (en) * | 2018-03-05 | 2018-10-02 | 苏州市职业大学（苏州开放大学） | A kind of screwdriver by magnetic force adjustment torque |
-
2018
- 2018-03-05 CN CN201820299322.4U patent/CN207930570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608358A (en) * | 2018-03-05 | 2018-10-02 | 苏州市职业大学（苏州开放大学） | A kind of screwdriver by magnetic force adjustment torque |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201433975Y (en) | Positioning pin assembly with adjustable length | |
| CN207930570U (en) | A kind of screwdriver by magnetic force adjustment torque | |
| CN108608358A (en) | A kind of screwdriver by magnetic force adjustment torque | |
| CN207901298U (en) | One kind getting porcupine roller ready | |
| CN207122510U (en) | A kind of interchangeable expansion sleeve type dynamic balancing axle | |
| CN205521092U (en) | A installation device that is used for axle head round nut of roots blower rotation axis | |
| CN203542333U (en) | Elastic honing rod | |
| CN202833526U (en) | Hexagon stud | |
| CN204749736U (en) | Mobile robot shell type quick detach tire structure that expands | |
| CN207178500U (en) | A kind of shaft coupling of lifting motor of travelling crane fixed structure | |
| CN203604262U (en) | Fixed structure for cooperation of ventilator impeller and motor shaft extension | |
| CN206317014U (en) | Textile machine bearing is special pulls out hand for dismounting | |
| CN203754201U (en) | Mounting device of friction wheel seats of escalator or moving sidewalk | |
| CN208034530U (en) | A kind of manual wrench of high intensity | |
| CN204878207U (en) | Bolt | |
| CN206169957U (en) | Automatic mark hexagon socket head cap screw screws up frock | |
| CN201848810U (en) | Bush with hexagonal appearance and triangular interior | |
| CN203960839U (en) | Capable of regulating is built the high speed ridger rolling-compaction roller of ridge width | |
| CN215521543U (en) | Lockpin bush fixing device | |
| CN204037228U (en) | Wheel hub layer rolling device | |
| CN204621789U (en) | A kind of centre head of grinding work-piece inner hole cone wall | |
| CN204140605U (en) | A kind of eccentric bolt | |
| CN203297149U (en) | Draught fan fixing device and draught fan comprising same | |
| CN210850022U (en) | Novel round nut wrench | |
| CN209062838U (en) | One kind is split type to be threadedly engaged flap wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20210305 |