CN104511873A - Controllable magnetic screwdriver - Google Patents
Controllable magnetic screwdriver Download PDFInfo
- Publication number
- CN104511873A CN104511873A CN201310454587.9A CN201310454587A CN104511873A CN 104511873 A CN104511873 A CN 104511873A CN 201310454587 A CN201310454587 A CN 201310454587A CN 104511873 A CN104511873 A CN 104511873A
- Authority
- CN
- China
- Prior art keywords
- cavity
- permanent magnet
- handle
- knife bar
- sliding part
- 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
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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
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides a controllable magnetic screwdriver, and belongs to the technical field of screwdrivers. The controllable magnetic screwdriver is that a screwdriver head is arranged at the other end of a screwdriver rod; the screwdriver rod and the screwdriver head are manufactured from magnetic conductive metal; a cavity is formed in the handle; the upper end of the screwdriver rod is located in the cavity; a movable permanent magnet is arranged in the cavity; the axial length of the cavity is more than the length of the permanent magnet; the permanent magnet can axially move along the cavity; a chute which communicates with the inside and outside of the cavity is axially formed in the handle; a sliding part is connected with the permanent magnet is arranged on the chute; a fixing frame in which the permanent magnet is fixed is fixedly connected to the sliding part; the cavity and the chute are axially connected to the upper end of the handle; an end cover is arranged at the upper end of the handle; an annular slot in which the upper end of the handle is inserted is formed in the end cover; the upper end part of the screwdriver rod extends into the cavity; the permanent magnet is equipped with an cavity for storing the screwdriver rod; the sliding part is equipped with two opposite clamping slots; two opposite slide rails are formed on the handle sections at two sides of the chute and respectively clamped into the two clamping slots.
Description
Technical field
The present invention relates to the controlled screwdriver of a kind of magnetic force, belong to driver technology field.
Background technology
Screwdriver is producing and life application a kind of instrument widely.General cannot pick up handling by screw in use without magnetic screwdriver, and screwdriver is not easily aimed at screw, particularly screw vertically load and unload or screw less cannot side auxiliary positioning be easily cause the operating difficulties of screwdriver dismounting screw.Generally have the screwdriver of magnetic force magnetic force when dismounting screw uncontrollable, cause screwdriver always with screw adhesive, use and can accurately not control the position of screwdriver and screw.Someone proposes the magnetic force being controlled screwdriver by the power on/off of solenoid for this reason.But the effect of this kind of mode is poor, and lost efficacy owing to adopting power supply apparatus easily to damage, and expended the energy, do not meet energy-conservation developing direction.
In view of above-mentioned existing screwdriver in use Problems existing and defect, the present inventor relies on working experience for many years and abundant professional knowledge finally to have developed the controlled screwdriver of a kind of magnetic force, easily realize the control of screwdriver magnetic force, make it more possess practicality.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides the controlled screwdriver of a kind of magnetic force, to overcome Problems existing in existing screwdriver Magnetic Control.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
The knife bar comprising handle and be fixedly connected with handle, at its lower end, the other end of knife bar has cutter head, and knife bar and cutter head are that magnetic conductive metal is made, and handle has cavity, and the upper end of knife bar is positioned at cavity, is provided with movable permanent magnet in cavity; The axial length of cavity is greater than the length of permanent magnet, and permanent magnet can move axially along cavity; Handle is provided with vertically the chute be communicated with inside and outside cavity, chute is provided with sliding part, and sliding part is connected with permanent magnet; Sliding part is fixedly connected with fixed frame, and permanent magnet is fixed in fixed frame; Cavity and chute pass to the upper end of handle vertically; The upper end of handle is provided with end cap; End cap has cannelure, and the upper end of handle inserts in cannelure; End cap and handle are threaded connection; The upper part of knife bar is stretched in cavity, and permanent magnet has the cavity of the accommodation knife bar axially arranged; Sliding part has two relative clamp bar slots, and the slide rail that on the handle of chute both sides, formation two is relative, two slide rails are stuck in two clamp bar slots respectively.
Compared with prior art, beneficial effect of the present invention is:
The present invention adopt permanent magnet to contact with metal knife bar or away from mode achieve the control of screwdriver magnetic force, structure is simple, is easy to realize.In addition, owing to not adopting electronic component, not consume electric power, economize energy, not fragile, can not inefficacy be caused.Magnetic Control effect stability.
Accompanying drawing explanation
Fig. 1 is the structural perspective of a kind of embodiment of the controlled screwdriver of magnetic force of the present invention;
Fig. 2 is the structural perspective of another embodiment of the controlled screwdriver of magnetic force of the present invention;
Fig. 3 is the part section structural representation of Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Embodiment 1: as shown in Figure 1, Figure 2 and Figure 3, the controlled screwdriver of a kind of magnetic force, the knife bar 3 comprising handle 4 and be fixedly connected with handle 4 lower end 401, the lower end 302 of knife bar 3 has cutter head 1.Handle 4 has cavity 5, the upper end 301 of knife bar 3 is positioned at cavity 5, is provided with movable permanent magnet 2 in cavity 5.The present invention arranges permanent magnet 2 on handle 4, the adjustment realized screwdriver magnetic force by permanent magnet 2 and contact and the disengaging of knife bar and control.Specifically various ways can be adopted, as shown in Figure 1, handle 4 has the cavity 5 adapted with permanent magnet 2, contact with the upper end 301 of knife bar 3 when permanent magnet 2 is inserted in cavity 5, make because existing knife bar 3 and cutter head 1 are magnetic conductive metal, so the magnetic force of permanent magnet 2 can be passed to cutter head 1, realize the absorption to screw.When not needing magnetic force, only permanent magnet 2 need be taken out from cavity 5 and permanent magnet 2 and knife bar 3 are departed from.But because in use permanent magnet 2 needs to depart from handle, use slightly inconvenient.Following preferred embodiment can be adopted for this reason.
Preferred as above-described embodiment, see Fig. 2 and Fig. 3, the axial length of cavity 5 is greater than the length of permanent magnet 2, and permanent magnet 2 can move axially along cavity 5.Like this, when permanent magnet 2 along cavity 5 move to contact with knife bar 3 time, screwdriver produces magnetic force to screw.When permanent magnet 2 along cavity 5 gradually away from knife bar 3 time, the magnetic force of cutter head 1 pair of screw weakens gradually until can not adsorb screw.This kind of mode uses very convenient.And realize there is various ways to the controlling and adjustment of the position of permanent magnet 2, provide comparatively preferred mode below.
Preferred as above-described embodiment, see Fig. 2, handle 4 is provided with vertically the chute 6 be communicated with inside and outside cavity 5, chute 6 is provided with sliding part 7, and sliding part 7 is connected with permanent magnet 2.By operating the control that sliding part 7 realizes the position to permanent magnet 2 outside handle 4, structure is simple, is easy to operation.Do not need other special structures, as long as have certain frictional force sliding part 7 can be adjusted together with permanent magnet 2 between sliding part 7 and handle 4 and be positioned the position that needs.A kind of concrete structure is as follows, and sliding part 7 has two relative clamp bar slots, and the slide rail that on the handle 4 of chute 6 both sides, formation two is relative, two slide rails are stuck in two clamp bar slots respectively.Another alternative as sliding part 7 is that permanent magnet 2 is connected with an action bars, and action bars stretches out from the upper end 402 of handle 4, by being pulled outwardly or inwardly promoting the adjustment of action bars realization to the position of permanent magnet 2.
For the ease of the connection of sliding part 7 or action bars and permanent magnet 2, sliding part 7 or action bars can be fixedly connected with a fixed frame, permanent magnet 2 is fixed in fixed frame.Fixed frame can adopt applicable any concrete structure as required.As having both ends of the surface, connected between both ends of the surface by two or more connection strap, permanent magnet 2 can be inserted in fixed frame from side.The material of fixed frame can somewhat resilient, fastening for permanent magnet 2 can be placed in fixed frame.Sliding part 7 or action bars can be that integrative-structure also can be fixedly connected with by Split type structure with fixed frame.During manufacture, handle is that axial two parts are formed by connecting, thus permanent magnet 2 can be placed in cavity 5.But the replacing of permanent magnet 2 or the parts such as sliding part 7 and fixed frame is comparatively inconvenient.So the invention provides following preferred.
Preferred as above-described embodiment, cavity 5 and chute 6 pass to the upper end 402 of handle 4 vertically.Assembling or the replacing of the part such as permanent magnet 2 and sliding part 7 can be realized so at any time from the upper end 402 of handle 4.In order to prevent the accident of permanent magnet 2 from deviating from, be provided with end cap 8 in the upper end 402 of handle 4.In order to increase the intensity of handle 4, end cap 8 arranges cannelure, the upper end 402 of handle 4 inserts in this cannelure.End cap 8 with between handle by being threaded, also connect by modes such as tensioners.When the mode adopting action bars to be connected with permanent magnet 2, end cap 8 should have the hole that action bars stretches out.
Preferred as above-described embodiment, upper end 301 part of knife bar 3 stretches in cavity 5, and permanent magnet 2 has the cavity 201 of the accommodation knife bar 3 axially arranged.By the upper end of knife bar 3 is placed in the cavity 201 of permanent magnet 2, makes permanent magnet realize parcel to knife bar, add the magnetic force of cutter head 1.Cavity 201 can be formed by the through hole axially arranged along permanent magnet 2, and the blind hole that also can arrange in the one or both ends of permanent magnet 2 is formed.
The material that the material of screwdriver of the present invention all can adopt prior art to adopt.Any materials that the parts such as handle 4, sliding part 7, fixed frame also can adopt such as engineering plastics etc. to be applicable to.Cutter head 1 and knife bar 3 can be integral structures, also can be split-type structurals.
Embodiment 2: as shown in Figure 1, Figure 2 and Figure 3, the controlled screwdriver of a kind of magnetic force, the knife bar comprising handle and be fixedly connected with handle, at its lower end, the other end of described knife bar has cutter head, described knife bar and cutter head are that magnetic conductive metal is made, described handle has cavity, and the upper end of described knife bar is positioned at described cavity, is provided with movable permanent magnet in described cavity.
As preferably, the axial length of described cavity is greater than the length of permanent magnet, and described permanent magnet can move axially along cavity.
As preferably, described handle is provided with vertically the chute be communicated with inside and outside cavity, described chute is provided with sliding part, and described sliding part is connected with described permanent magnet.
As preferably, described sliding part is fixedly connected with fixed frame, and described permanent magnet is fixed in fixed frame.
As preferably, described cavity and chute pass to the upper end of handle vertically.
As preferably, the upper end of described handle is provided with end cap.
As preferably, described end cap has cannelure, and the upper end of described handle inserts in described cannelure.
As preferably, described end cap and handle are threaded connection.
As preferably, the upper part of described knife bar is stretched in cavity, and described permanent magnet has the cavity of the described knife bar of accommodation axially arranged.
As preferably, described sliding part has two relative clamp bar slots, and the handle of described chute both sides is formed two relative slide rails, two slide rails are stuck in two clamp bar slots respectively.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (2)
1. the controlled screwdriver of magnetic force, the knife bar comprising handle and be fixedly connected with handle, at its lower end, the other end of knife bar has cutter head, knife bar and cutter head are that magnetic conductive metal is made, and it is characterized in that handle has cavity, the upper end of knife bar is positioned at cavity, is provided with movable permanent magnet in cavity; The axial length of cavity is greater than the length of permanent magnet, and permanent magnet can move axially along cavity; Handle is provided with vertically the chute be communicated with inside and outside cavity, chute is provided with sliding part, and sliding part is connected with permanent magnet; Sliding part is fixedly connected with fixed frame, and permanent magnet is fixed in fixed frame; Cavity and chute pass to the upper end of handle vertically; The upper end of handle is provided with end cap; End cap has cannelure, and the upper end of handle inserts in cannelure; End cap and handle are threaded connection; The upper part of knife bar is stretched in cavity, and permanent magnet has the cavity of the accommodation knife bar axially arranged; Sliding part has two relative clamp bar slots, and the slide rail that on the handle of chute both sides, formation two is relative, two slide rails are stuck in two clamp bar slots respectively.
2. the controlled screwdriver of a kind of magnetic force according to claim 1, is characterized in that sky arranges permanent magnet on handle; Handle has the cavity adapted with permanent magnet, contacts when permanent magnet is inserted in cavity with the upper end of knife bar, the axial length of cavity is greater than the length of permanent magnet, and permanent magnet can move axially along cavity;
Another alternative as sliding part is that permanent magnet is connected with an action bars, and action bars stretches out from the upper end of handle, by being pulled outwardly or inwardly promoting the adjustment of action bars realization to the position of permanent magnet;
Sliding part or action bars are fixedly connected with fixed frame; Fixed frame has both ends of the surface, is connected between both ends of the surface by two or more connection strap, and permanent magnet can be inserted in fixed frame from side; The material band elasticity of fixed frame, is placed in fixed frame by fastening for permanent magnet;
Sliding part or action bars can be that integrative-structure also can be fixedly connected with by Split type structure with fixed frame; Handle is that axial two parts are formed by connecting, thus can be placed in cavity by permanent magnet;
Cavity and chute pass to the upper end of handle vertically; End cap is provided with in the upper end of handle; End cap arranges cannelure, and the upper end of handle inserts in this cannelure; Be threaded connection between end cap and handle, also connect by modes such as tensioners;
The upper part of knife bar is stretched in cavity, and permanent magnet has the cavity of the accommodation knife bar axially arranged; The upper end of knife bar is placed in the cavity of permanent magnet; Cavity can be formed by the through hole axially arranged along permanent magnet, and the blind hole that also can arrange in the one or both ends of permanent magnet is formed; Cutter head and knife bar can be integral structures, also can be split-type structurals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454587.9A CN104511873B (en) | 2013-09-29 | 2013-09-29 | The controlled screwdriver of a kind of magnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454587.9A CN104511873B (en) | 2013-09-29 | 2013-09-29 | The controlled screwdriver of a kind of magnetic force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104511873A true CN104511873A (en) | 2015-04-15 |
| CN104511873B CN104511873B (en) | 2016-05-11 |
Family
ID=52788048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310454587.9A Active CN104511873B (en) | 2013-09-29 | 2013-09-29 | The controlled screwdriver of a kind of magnetic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104511873B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498494A (en) * | 2017-09-30 | 2017-12-22 | 无锡市稀土永磁厂 | The controllable rare earth permanent magnet screwdriver of magnetic force |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116564U (en) * | 1992-03-24 | 1992-09-23 | 国营第八九九厂 | Moved permanent-magnet screwdriver |
| CN2396931Y (en) * | 1999-11-17 | 2000-09-20 | 张�林 | Magnetic attachment type screw driver |
| DE20314486U1 (en) * | 2003-09-17 | 2004-10-21 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screw driver with torque restrictor includes magnetic coupling with inner and outer bodies joined in one piece of magnetic material and with permanent magnets oppositely pole with inner body moved steplessly by adjuster |
| DE202004003927U1 (en) * | 2003-08-28 | 2005-01-05 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Magnetic holding device for screwdrivers |
| CN102069462A (en) * | 2010-12-30 | 2011-05-25 | 上海昆杰五金工具有限公司 | Magnetically controllable screwdriver |
| CN202742292U (en) * | 2012-08-10 | 2013-02-20 | 温县供电有限责任公司 | Electric screw driver |
| CN203197816U (en) * | 2013-05-07 | 2013-09-18 | 山东电力集团公司潍坊供电公司 | Screwdriver |
| CN203510039U (en) * | 2013-09-29 | 2014-04-02 | 中国石油天然气股份有限公司 | Magnetic-force-controllable screw driver |
-
2013
- 2013-09-29 CN CN201310454587.9A patent/CN104511873B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116564U (en) * | 1992-03-24 | 1992-09-23 | 国营第八九九厂 | Moved permanent-magnet screwdriver |
| CN2396931Y (en) * | 1999-11-17 | 2000-09-20 | 张�林 | Magnetic attachment type screw driver |
| DE202004003927U1 (en) * | 2003-08-28 | 2005-01-05 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Magnetic holding device for screwdrivers |
| DE20314486U1 (en) * | 2003-09-17 | 2004-10-21 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screw driver with torque restrictor includes magnetic coupling with inner and outer bodies joined in one piece of magnetic material and with permanent magnets oppositely pole with inner body moved steplessly by adjuster |
| CN102069462A (en) * | 2010-12-30 | 2011-05-25 | 上海昆杰五金工具有限公司 | Magnetically controllable screwdriver |
| CN202742292U (en) * | 2012-08-10 | 2013-02-20 | 温县供电有限责任公司 | Electric screw driver |
| CN203197816U (en) * | 2013-05-07 | 2013-09-18 | 山东电力集团公司潍坊供电公司 | Screwdriver |
| CN203510039U (en) * | 2013-09-29 | 2014-04-02 | 中国石油天然气股份有限公司 | Magnetic-force-controllable screw driver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498494A (en) * | 2017-09-30 | 2017-12-22 | 无锡市稀土永磁厂 | The controllable rare earth permanent magnet screwdriver of magnetic force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104511873B (en) | 2016-05-11 |
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| C14 | Grant of patent or utility model | ||
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