CN1304168C - Adjustable safety extension rod - Google Patents
Adjustable safety extension rod Download PDFInfo
- Publication number
- CN1304168C CN1304168C CNB2004100394480A CN200410039448A CN1304168C CN 1304168 C CN1304168 C CN 1304168C CN B2004100394480 A CNB2004100394480 A CN B2004100394480A CN 200410039448 A CN200410039448 A CN 200410039448A CN 1304168 C CN1304168 C CN 1304168C
- Authority
- CN
- China
- Prior art keywords
- locking
- driven member
- piece
- control piece
- sticking department
- 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
Images
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The present invention discloses an adjustable safe extension rod which is provided with a safety device and a locking device on an extension rod, wherein the safety device is provided with safety clutch parts and a control component; the safety clutch parts are relatively arranged on a driving body and a driven body of the extension rod; the control component can adjust the elastic pressure of an elastic pressure component. The present invention is characterized in that a locking component of the locking device is arranged between the driving body and the driven body, so the extension rod can be in a form of the adjustable power output of the extension rod by the selection of the locking device, namely that the extension rod can directly output power like a common integral extension rod, or the extension rod can have a structure with an adjustable safe prior stress mechanism for workpieces with small torque force. Therefore, different power transmission can be selected for different requirements, and a user can immediately select and use the adjustable safe extension rod so as to achieve the goals of high selectivity, convenience and safety.
Description
Technical field
The present invention is mainly concerned with a kind of adjustable safety extension bar, it is at the extension bar structure that can adjust power output form, promptly when pulling the workpiece of little torque value, it becomes an open form, so that safe prestressing force to be provided, and when pulling general torque value workpiece, it locking can be formed general extension bar, be beneficial to the power transmission, reach the purpose that to adjust power output.
Background technology
By the function of present extension bar, apply between instrument and workpiece, if its workpiece in unapproachable deep trouth of tool head or dell the time, by the use of extension bar, makes the power on the instrument be able to reach the workpiece place via joint; So structure when using, still has its shortcoming to exist.
Its extension bar only is that simple power transmission connects; therefore; its power transmission all is the direct of ten minutes; any adjusting is not arranged; so when pulling the workpiece that only can bear little power torsion; the transmission of extension bar reaches this strength via instrument; very easily exceed the torque range that it can bear; and because the connection of extension bar; the phenomenon that the existing accumulation of clearance between its each member is amplified; therefore when instrument is pulled; there is the disappearance of excessively pulling in user's application of force inertia regular meeting; when being user's pulling tool; perhaps the relation of efficient cause accumulation clearance does not reach on the workpiece as yet; and when one section revolution of pulling tool apart from the time; begin to pull workpiece; at this moment; instrument rotates and to have produced an inertia, forms the situation of a dynamic application of force, strengthens situation gradually and the strength of executing to workpiece is had; therefore to workpiece be everlasting arrive it and can bear the value of torsion after; still can't stop immediately, and then cause the infringement of workpiece, workpiece is destroyed in the inside of dell or deep trouth; and can't be removed; cause can't continue assembling or maintenance, its inconvenience is arranged in the use, and; during strength that user's hand tool strength can be born greater than workpiece; via the transmission of extension bar, since the inertia of action and clearance accumulation, user's feel variation; can't learn immediately that workpiece locks; and the strength that its application of force often can have been born greater than workpiece, so when often the application of force being arranged, its workpiece promptly has the possibility of direct destruction; therefore at the workpiece of little holding capacity, present extension bar in fact can't be in response to the demand on its safety.
And tool needle is also arranged to exceeding the structure that torque value can be set at present, as alleged torque spanner or torsion head, it is the qualification form of the safety value scope that will reach certain during at general instrument screw lock workpiece at least, wherein with the structure of torsion head, its main function is that its torque value becomes an adjustable structural form, has certain torque value and make, when making engagement tool turn workpiece, the screw lock that is workpiece can reach certain torque value, and unlikelyly be lower than this torque value, so structure is promptly as No. 772065 " ratchet-type torsion head " novel patent case, with and append the content of case, it is to be provided with in the shell of torsion head, bottom ratchet wheel, the square head of bottom ratchet wheel is passed outer casing bottom, and last ratchet top is spring compacting, and be that a main shaft drives, a main shaft stage casing and a sleeve screw lock, and by the pressure of sleeve control spring, main shaft top cooperate the stopper packing ring and shell is sealed is integral; So structure by the adjustment of sleeve, can reach the adjustment of torsion, so being a torsion, it adjusts structure, when this user need not the control of torsion, this structure promptly can't be for it, must replacing do not limit the structure of torsion, and the use of its torque value, all can bear bigger power value, promptly under the unbroken state of workpiece, only do the restriction of application of force torsion at workpiece, so all be the restriction of torsion on it uses, there is no other function.
Summary of the invention
The technical problem to be solved in the present invention is: at the variety of problems that occurs in the prior art, for extension bar is designed at only bearing little torsion workpiece, and can select different power output forms, promptly can be the extension bar of general direct transmission power or change into the extension bar structure that to prevent little torsion workpiece not to be damaged, a kind of adjustable safety extension bar is provided.
In order to solve the problems of the technologies described above, the solution that the present invention proposes is: a kind of adjustable safety extension bar, this extension bar comprises an active body and a driven member, in between active body and driven member, be provided with a safety device, its safety device is relative on active body and driven member to be provided with safe clutch part, and be provided with control piece in the outside, and be provided with one between control piece and safe clutch part in addition so as to adjusting the pressure piece of flexible pressure, be provided with a locking device between this active body and driven member in addition, its locking device has a locking piece, is characterized in:
Safe clutch part on the described active body is located at the in addition end relative with the socket part of active body one end; Safe clutch part on the described driven member is located at the in addition end relative with the socket end of driven member one end, and the safe clutch part of master and slave kinetoplast is oppositely arranged; The control piece that described safety device has is placed in the outside of master and slave kinetoplast, and screw togather mutually with respect to an end and the active body of active body, be provided with holding part in the control piece, described pressure piece is placed in the holding part, control piece is held the locking part that has the elasticity opening and closing with respect to the outside formation one of driven member in addition, and described locking piece screw lock is in the outside of this locking part.
The active body top is located in the socket part of described active body, and an end of active body forms the adjustment part, and the safe clutch part of described active body is located at the free end of adjustment part.The body of rod place of described driven member is provided with locking part.
The inner radius of the big footpath opening of the control piece of described safety device is provided with the adjustment part; Described holding part is located at the control piece middle section, and the safe clutch part back side and the pressure piece of driven member hold, and pressure piece end is in addition then suppressed in the holding part bottom, and the holding part bottom center is passed for driven member; Control piece forms a sticking department with respect to the outer end diameter of driven member, the locking part of described safety device is formed at the inner radius of control piece end and matches with the driven member locking part, and the end part interval of control piece is provided with profile groove so that this end has the elasticity of opening and closing, and, be located at the relative member of locking device on the sticking department in order to the backstop spiral shell in outer radius elasticity blocking one stop part of least significant end.
The inner radius of the locking piece that described locking device has cooperates the control piece sticking department to form a sticking department, establishes so that locking piece can be locked in sticking department.
The inner radius of the locking piece that described locking device has is provided with sticking department, this sticking department becomes the different packing face form of a gradient respectively with the sticking department of control piece, and form the together spiro-locking section of footpath threaded engagement form in addition in the big footpath of sticking department end, screw lock by spiro-locking section changes the relative position of locking piece on control piece, promptly press on the outer radius of sticking department with the different gradient of sticking department, make sticking department form the different inner diameters stretching degree, so that the locking part of control piece clamps or unclamp the locking part of driven member.
Be respectively equipped with number safe scale and display scale at interval between safety device and driven member, in order to showing its prestressed safety value.The control piece end of safety device is provided with digital display and shows scale, and the comparatively safe scale of driven member, to cooperate the safety value that shows torsion.The coaxial center guide shaft that placed of master and slave kinetoplast.
Compared with prior art, the present invention has beneficial effect and is: can select different power output forms 1.: promptly the visual different workpiece of user need be done different power transmission selections, as at need not control the medium-sized or large-scale workpiece of torsion the time, its can locking device locking piece active body and driven member are locked into the form that one drives, to become the extension bar structure of a traditional type, also the locking device locking piece can be unscrewed, the inner structure that forms of extension bar with prestressing force form, the quick person of convenience of ten minutes in the use.2. avoid the unnecessary destruction of little torsion workpiece: when become in the locking device locking piece one unscrew form the time, its extension bar inside promptly has certain prestressing force, for the workpiece that only can bear little torsion, has the effect of protection, so have safe effect.
Description of drawings
Fig. 1 is a stero decomposing schematic representation of the present invention;
Fig. 2 is a combination schematic diagram of the present invention;
Fig. 3 is a combination schematic appearance of the present invention;
Fig. 4 is the action schematic diagram of locking device locking piece of the present invention to active body and the mutual locking of driven member;
Fig. 5 is a safety device control piece adjustment action schematic diagram of the present invention;
Fig. 6 is the second embodiment form schematic diagram of safety device locking piece of the present invention and safety device control piece locking part.
Marginal data
Extension bar 1 active body 10
11 adjustment parts 12, socket part
Holding part 311 sticking departments 312
Locking part 313 profile grooves 314
Spiro-locking section 315 display scales 316
The specific embodiment
Below with reference to accompanying drawing the present invention is described in further details.
As Fig. 1, Fig. 2 and shown in Figure 3, extension bar 1 of the present invention has an active body 10 and a driven member 20, be provided with a safety device 30 and a locking device 40 in addition in active body 10 and 20 of driven members, by locking device 40 the safe prestressed structure of safety device 30 is given locking or opening, so that extension bar 1 becomes a traditional extension bar structural form or becomes a safe power transmission structure at little torque value workpiece.
Wherein, active body 10 tops of extension bar 1 have poroid socket part 11, one one-tenth indent four directions, and hold formation one thin neck tool to become the adjustment part 12 of external screw thread form in addition in it, the free end of adjustment part 12 then has the helical teeth shape safety clutch part 13 relative with driven member 20, be beneficial to cooperate and driven member 20 engagement drives with safety device 30, and be provided with a center guide shaft 14 in the central authorities of active body 10, to be placed through the centre of active body 10 and driven member 20,, active body 10 rotates so that can remaining on the same axle center with driven member 20.
And driven member 20 1 ends are provided with the socket end 21 of square head form, and be provided with the safe clutch part 22 of helical teeth shape with respect to the safe clutch part 13 of active body 10 in other end, and be provided with the locking part 23 of an oblique circular tooth shape in addition in driven member 20 body of rod middle sections, and be beneficial to cooperate safety device 30 to show its prestressed safety values in be provided with number safe scales 24 at interval in addition in abutting connection with these locking part 23 places.
And safety device 30 mainly has the control piece 31 of a sleeve shaped, and is provided with the adjustment part 310 of female thread in the big footpath of control piece 31 opening parts, screws togather mutually to adjust the relative position at control piece 31 places for the adjustment part 12 with active body 10; And control piece 31 middle sections form the holding part 311 in big footpath in addition, the elastic pressure member 32 of one spring form is placed in wherein, and safe clutch part 22 back sides and the pressure piece 32 of driven member 20 are held, pressure piece 32 end is in addition then suppressed in holding part 311 bottoms, and holding part 311 bottom center are passed for driven member 20; Control piece 311 forms the sticking department 312 of an oblique cone external screw thread form with respect to the outer end diameter of driven member 20, and form the locking part 313 that cooperates with driven member 20 locking parts 23 in the inner radius of this end, and be interval with profile groove 314 so that this end has the elasticity of expansible closure, and, be beneficial to the backstop spiral shell and be located at locking device 40 relative members on the sticking department 312 in the stop part 33 of one one-tenth C shape button of the outer radius elasticity blocking of least significant end form.
And locking device 40 has a locking piece 41, its locking piece 41 is a nut structure form, wherein, the inner radius of locking piece 41 cooperates control piece 31 sticking departments 312 to form the sticking department 410 of interior taper female thread attitude, so that locking piece 41 can be on sticking department 312 the tapering screw lock, make control piece 31 opposed ends become to open or closed form.
As shown in Figure 4, when locking piece 41 tightly locks on the sticking department 312 of control piece 31, its locking part 313 engages in the locking part 23 of driven member 20 at once, active body 10 and driven member 20 can't be recessed mutually, the form that the safe clutch part 13 that to be its active body 10 relative with driven member 20 and safe clutch part 22 keep engagement to drive mutually, so, extension bar 1 integral body a traditional extension bar structure general, do the transmission immediately on the power; And when general as shown in Figure 2; when its locking device 40 locking pieces 41 oppositely unscrew; locking part 313 on its safety device 30 control pieces 31 leaves the locking part 23 of driven member 20 at once; the safe clutch part 22 of its driven member 20 can jump out of the structural form of active body 10 safe clutch part 13; so when pressing to the prestressing force of driven member 20 safe clutch part 22 greater than pressure piece 32 by the torsion of active body 10 inputs; its active body 10 promptly jumps out of mutually with driven member 20; and make driven member 20 no longer drive workpiece, so as to reaching the purpose of the little torsion workpiece of protection.
As shown in Figure 5, the control piece 31 of its safety device 30 is also rotatable, adjusts the position at its place on the adjustment part 12 of active body 10, and makes the prestressing force that pressure piece 32 is pressed to driven member 20 safe clutch part 22 become an adjustable form.
By above-mentioned structure and locking whether control, make the present invention can reach following function, such as:
1. can select different power output forms: promptly the visual different workpiece of user need be done different power transmission selections, as at need not control the medium-sized or large-scale workpiece of torsion the time, its can locking device 40 locking piece 41 active body 10 and driven member 20 are locked into the form that one drives, to become the extension bar structure of a traditional type, also locking device 40 locking pieces 41 can be unscrewed, the extension bar 1 inner structure with prestressing force form that forms, the convenience of ten minutes is quick in the use.
2. avoid the unnecessary destruction of little torsion workpiece: when the time in 41 one-tenth one forms that unscrew of locking device 40 locking pieces; its extension bar 1 inside promptly has certain prestressing force; for the workpiece that only can bear little torsion, has the effect of protection, so have the effect of safe effect mouth.
The main architectural feature of the present invention is locking device 40 and the relative design of safety device 30 two parts, embodiment form as shown in Figure 6, promptly in locking piece 41 sticking departments 410 and sticking department 312 modal variations, its sticking department 312,410 become the different packing face form of a gradient respectively, and in sticking department 410, the terminal together spiro-locking section 411 of footpath threaded engagement form that forms in addition in 312 big footpath, 315, by spiro-locking section 411,315 screw lock changes the relative position of locking piece 41 on control piece 31, promptly press on the outer radius of sticking department 312 with sticking department 312 different gradients, make sticking department 312 form the different inner diameters stretching degree, so that locking part 313 clamps or unclamps the locking part 23 of driven member 20, to reach locking or to unclamp the purpose that represents torsion, have above-mentioned function and purpose equally.
In addition, be provided with several in terminal comparatively safe scale 24 places of the control piece 31 nearly driven members 20 of safety device 30 and indicate scale 316, so that cooperate the torsion state that shows the place with safety scale 24, to inform user's one torque value, to meet the needs in the use.
Claims (9)
1, a kind of adjustable safety extension bar, this extension bar comprises an active body and a driven member, in between active body and driven member, be provided with a safety device, its safety device is relative on active body and driven member to be provided with safe clutch part, and be provided with control piece in the outside, and be provided with one between control piece and safe clutch part in addition so as to adjusting the pressure piece of flexible pressure, be provided with a locking device between this active body and driven member in addition, its locking device has a locking piece, it is characterized in that:
Safe clutch part on the described active body is located at the in addition end relative with the socket part of active body one end; Safe clutch part on the described driven member is located at the in addition end relative with the socket end of driven member one end, and the safe clutch part of master and slave kinetoplast is oppositely arranged;
The control piece that described safety device has is placed in the outside of master and slave kinetoplast, and screw togather mutually with respect to an end and the active body of active body, be provided with holding part in the control piece, described pressure piece is placed in the holding part, control piece is held the locking part that has the elasticity opening and closing with respect to the outside formation one of driven member in addition, and described locking piece screw lock is in the outside of this locking part.
2, adjustable safety extension bar according to claim 1, it is characterized in that: the active body top is located in the socket part of described active body, and an end of active body forms the adjustment part, and the safe clutch part of described active body is located at the free end of adjustment part.
3, adjustable safety extension bar according to claim 1 is characterized in that: the body of rod place of described driven member is provided with locking part.
4, according to claim 1 or 2 or 3 described adjustable safety extension bars, it is characterized in that: the inner radius of the big footpath opening of the control piece of described safety device is provided with the adjustment part; Described holding part is located at the control piece middle section, and the safe clutch part back side and the pressure piece of driven member hold, and pressure piece end is in addition then suppressed in the holding part bottom, and the holding part bottom center is passed for driven member; Control piece forms a sticking department with respect to the outer end diameter of driven member, the locking part of described safety device is formed at the inner radius of control piece end and matches with the driven member locking part, and the end part interval of control piece is provided with profile groove so that this end has the elasticity of opening and closing, and, be located at the relative member of locking device on the sticking department in order to the backstop spiral shell in outer radius elasticity blocking one stop part of least significant end.
5, adjustable safety extension bar according to claim 4 is characterized in that: the inner radius of the locking piece that described locking device has cooperates the control piece sticking department to form a sticking department, establishes so that locking piece can be locked in sticking department.
6, adjustable safety extension bar according to claim 4, it is characterized in that: the inner radius of the locking piece that described locking device has is provided with sticking department, this sticking department becomes the different packing face form of a gradient respectively with the sticking department of control piece, and form the together spiro-locking section of footpath threaded engagement form in addition in the big footpath of sticking department end, screw lock by spiro-locking section changes the relative position of locking piece on control piece, promptly press on the outer radius of sticking department with the different gradient of sticking department, make sticking department form the different inner diameters stretching degree, so that the locking part of control piece clamps or unclamp the locking part of driven member.
7, adjustable safety extension bar according to claim 1 is characterized in that: be respectively equipped with number safe scale and display scale at interval between described safety device and driven member, in order to showing its prestressed safety value.
8, adjustable safety extension bar according to claim 7 is characterized in that: the control piece end of described safety device is provided with digital display and shows scale, and the comparatively safe scale of driven member, to cooperate the safety value that shows torsion.
9, adjustable safety extension bar according to claim 1 is characterized in that: the coaxial center guide shaft that placed of described master and slave kinetoplast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100394480A CN1304168C (en) | 2004-02-13 | 2004-02-13 | Adjustable safety extension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100394480A CN1304168C (en) | 2004-02-13 | 2004-02-13 | Adjustable safety extension rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1654836A CN1654836A (en) | 2005-08-17 |
| CN1304168C true CN1304168C (en) | 2007-03-14 |
Family
ID=34892351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100394480A Expired - Fee Related CN1304168C (en) | 2004-02-13 | 2004-02-13 | Adjustable safety extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1304168C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI547351B (en) * | 2016-01-15 | 2016-09-01 | min-hua Cai | Connecting rod structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88204311U (en) * | 1988-04-25 | 1988-12-14 | 王常文 | Adjustable torque value spanner |
| CN1049816A (en) * | 1989-08-10 | 1991-03-13 | 格雷戈里·福塞拉 | The adjustable extension rod spanner of ratchet |
| CN2159856Y (en) * | 1993-05-29 | 1994-03-30 | 北京市清华亚奥计算机技术研究所 | Strain type digital indicating socket torque spanners |
| CN2534409Y (en) * | 2002-02-04 | 2003-02-05 | 胡厚飞 | Multifunctional connecting bar |
-
2004
- 2004-02-13 CN CNB2004100394480A patent/CN1304168C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88204311U (en) * | 1988-04-25 | 1988-12-14 | 王常文 | Adjustable torque value spanner |
| CN1049816A (en) * | 1989-08-10 | 1991-03-13 | 格雷戈里·福塞拉 | The adjustable extension rod spanner of ratchet |
| CN2159856Y (en) * | 1993-05-29 | 1994-03-30 | 北京市清华亚奥计算机技术研究所 | Strain type digital indicating socket torque spanners |
| CN2534409Y (en) * | 2002-02-04 | 2003-02-05 | 胡厚飞 | Multifunctional connecting bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1654836A (en) | 2005-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206140380U (en) | Torsion sleeve with torsion adjusting function | |
| AU709971B2 (en) | Nut, and device for tightening provided with the same | |
| US5685715A (en) | Self-indexing transfer impression coping | |
| AU2002313371C1 (en) | Washer, fastener provided with a washer, and method of and power tool for fastening with the use of the washer | |
| US20160354906A1 (en) | Fortified high torque device | |
| US20090304443A1 (en) | Bolt with collar and flexible sleeve insert | |
| CN204839713U (en) | Medical miniature definite torque screwdriver | |
| TWI581917B (en) | Torque wrench positioning device | |
| TWM549140U (en) | Improved torsion sleeve structure with torsion adjustment | |
| CN1304168C (en) | Adjustable safety extension rod | |
| US5391032A (en) | Reusable positive bolt locking device | |
| CN100571991C (en) | Adjustable torsion tool | |
| CN100373060C (en) | Anti-loosing and anti-assembling nut | |
| CN110206205A (en) | A kind of curtain wall cross beam Fast Installation attachment device | |
| CN206600343U (en) | Combination nut | |
| AU2006201362B2 (en) | Power tool for and method of moving elements relative to an object | |
| CN1204348C (en) | Fastener of washer and spare washer, and fastening method and power tool using said washer | |
| US7044027B2 (en) | Wrench for use in limited access areas | |
| CN100431796C (en) | Adjustable screwdriver structure | |
| CN2795534Y (en) | Anti-loose and anti-unloading nut | |
| CN209050660U (en) | A kind of universal head ratchet spanner living | |
| CN2460020Y (en) | Improved pepper grinder coarse-fine regulating button | |
| CN220646449U (en) | Eccentric locknut | |
| CN1274466C (en) | Spanner safety devices | |
| CN200949595Y (en) | Anti-theft screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20110213 |