CN202114712U - Swinging-type power tool capable of quickly changing working head - Google Patents
Swinging-type power tool capable of quickly changing working head Download PDFInfo
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- CN202114712U CN202114712U CN201020697859XU CN201020697859U CN202114712U CN 202114712 U CN202114712 U CN 202114712U CN 201020697859X U CN201020697859X U CN 201020697859XU CN 201020697859 U CN201020697859 U CN 201020697859U CN 202114712 U CN202114712 U CN 202114712U
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- working head
- pendulum
- power tool
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Abstract
The utility model provides a swinging-type power tool capable of quickly changing a working head, which has simple and compact structure, low cost, and is convenient and quick to change the working head. The swinging-type power tool comprises a hollow working mandrel for driving the working head; and the working head is fastened between a working head receiving end of the working mandrel and a nut. The swinging-type power tool drives a screw rod getting through the working mandrel to be in thread connection with the nut by a twisting unit arranged on the upper part of the swinging power tool, so that the working head is fastened.
Description
Technical field
The utility model relates to a kind of hand-hold power tool, especially the pendulum-type power tool.
From the known a kind of pendulum-type power tool of CN100460148C, CN201067900 and CN101043987A; Working head is through being threaded between the working head receiving terminal that is fastened on tightening member and work arbor between work arbor and tightening member; Working head need could be installed and removed through revolving tool; And revolve between tool and the pendulum-type power tool is not one, normally external.Change in the working head operating process each, all inquire for the tool that revolves of tightening member, use inconvenient.Even the pendulum-type power tool through improvement after, will revolve tool and be fixed on the cable cover(ing), change working head at every turn, take that to revolve tool also be cumbersome, revolve tool and also be prone to lose.
From the known another kind of pendulum-type power tool of CN1946517A; This pendulum-type power tool has the work arbor that is used to drive working head; Working head cooperates through the latch assembly in the work arbor and tightening member; Be fastened between the retaining part on the tool end of tightening member and said work arbor, the slip through mobile device realizes latch assembly to the clamping and releasing of tightening member, and it is comparatively convenient to change working head.But the complex structure of this latch assembly, required precision height require work arbor inside that bigger cavity volume is arranged again simultaneously, so that flexible member and latch assembly are set, so the manufacturing cost of product is higher, is unfavorable for the extensive use of product.
The purpose of the utility model is: provide a kind of simple in structure, cheaply, and change working head pendulum-type power tool comparatively easily.
The utility model is realized through following technical scheme:
A kind of pendulum-type power tool of able to quickly change working head; The pendulum-type power tool comprises the work arbor of the hollow that is used to drive working head; Working head is fastened between the working head receiving terminal and nut of work arbor, and described pendulum-type power tool is through executing and turn round the unit and drive the screw rod that passes work arbor and the fastening working head of being threaded of nut at an upper portion thereof is set.
The advantage of the utility model is: execute and turn round the top that the unit is arranged on the pendulum-type power tool, when changing working head, direct control is executed and is turned round the nut that fastening working head just can tightened or unscrew in the unit.Need not to take, put back to and revolve tool, also just do not revolve the inconvenience that tool is lost naturally.
This pendulum-type power tool can further improve through the measure of describing in the following technical scheme and be perfect.
The outer surface of nut has the setting of work arbor being carried out profile locking joint.Execute through operation and to turn round that the unit is tightened or when unscrewing nut, can prevent that nut from rotating with screw rod.
Pass the screw rod of work arbor and be arranged to releasable connection or on-disconnectable the connection with work arbor.Through primary nut or back-up ring or elastomer are set at the screw flight end, prevent that in the use, screw rod comes off out from work arbor.
Execute and turn round the unit and be fixedly connected with screw rod and be integral.Operation is executed and is turned round the unit and just can directly drive screw rod, structure with operate all simple.
Execute to turn round and be set to clutch between unit and the screw rod and be connected.Pendulum-type power tool when work, execute and turn round the unit and be in and the screw rod released state, execute turn round the unit can be with the work arbor reciprocally swinging; When need changing working head, make to execute and turn round the unit and engage, just can tighten or unscrew nut with screw rod.
Between nut and working head, also be provided with flange, flange is independent component or constitutes one with nut.Flange is set between nut and working head can be increased and the working head contact area, especially is arranged to the butterfly spring flange, can prevent preferably that the nut that causes owing to vibration in the pendulum-type power tool course of work from getting loose.
Execute turn round the unit radial dimension greater than 30mm.Execute and turn round the unit bigger radial dimension is arranged, the operator has the bigger size that grips, and is convenient to screw rod is applied bigger moment of torsion.
Execute and turn round the unit and be provided with collapsible torsion bar or the telescopic torsion bar that increases of increasing.Turn round under the not too big prerequisite of unit profile guaranteeing to execute, increase torsion bar or the telescopic setting that increases torsion bar, increase arm of force length, be convenient to the operator screw rod is applied bigger moment of torsion through collapsible.
Execute and turn round the unit and be provided with the planetary gear transmission and increase and turn round device.The planetary gear transmission is set increases and turn round device, increase torsion effect, be convenient to the operator screw rod is applied bigger moment of torsion through planetary deceleration.
Description of drawings
Fig. 1 is the partial sectional view of the pendulum-type power tool of the utility model.
Fig. 2 is the partial sectional view of the optimization embodiment of the utility model.Executing among the figure turned round the unit and is provided with the collapsible torsion bar that increases, and turns round that clutch is connected between unit and the screw rod but execute, and executing among the figure turns round the unit and screw rod is in released state, and the convexity of nut is inserted in the depression of work arbor, carries out the profile locking with work arbor and engages.
The specific embodiment
As shown in Figure 1: a kind of pendulum-type power tool (10); Pendulum-type power tool (10) comprises the work arbor (12) of the hollow that is used to drive working head (68); Working head (68) is fastened between the working head receiving terminal (36) and nut (30) of said work arbor (12), and pendulum-type power tool (10) is through executing and turn round unit (40) and drive the screw rod (20) that passes work arbor (12) the fastening working head (68) that is threaded with nut (30) at an upper portion thereof is set.
Execute and turn round the top that unit (40) is arranged on pendulum-type power tool (10), under the normal prerequisite of using of the instrument that can not influence, guarantee to execute and turn round unit (40) bigger operating space is arranged, be convenient to the operator and turn round unit (40) and apply bigger torsion executing.Execute and turn round unit (40) bigger radial dimension D is arranged, the operator has the bigger size that grips, and is convenient to screw rod is applied bigger moment of torsion.Turn round the top that unit (40) is arranged on pendulum-type power tool (10) owing to executing simultaneously, when changing working head, direct control is executed and turned round the nut that fastening working head just can tightened or unscrew in the unit, and is very convenient.Need not to take, put back to and revolve tool, also just do not revolve the inconvenience that tool is lost naturally.
As shown in Figure 2: the working head receiving terminal (36) of work arbor (12) is provided with a depression (16), and the convexity (37) of nut (30) can be inserted in the depression (16) of work arbor, carries out the profile locking with work arbor and engages; Working head (68) is fastened between the working head receiving terminal (36) and nut (30) of said work arbor (12), between working head (68) and nut (30), also is provided with flange (39); Execute and turn round unit (40) and be provided with bearing pin (45) and the collapsible torsion bar (47) that increases, the collapsible torsion bar (47) that increases can rotate around bearing pin (45); Execute to turn round and also be provided with the clutch interface (42) that matches with the bar head (22) of screw rod (20) on the unit (40); Executing among the figure turned round the clutch interface (42) of unit (40) and the bar head (22) of screw rod (20) is in released state, and at the end of thread of screw rod (20) primary nut (25) is set.Through primary nut or back-up ring or elastomer are set at the screw flight end, can prevent that screw rod comes off out in the use from work arbor.
The working head receiving terminal (36) of work arbor (12) is provided with a depression (16), and the convexity (37) of nut (30) can be inserted in the depression (16) of work arbor, carries out the profile locking with work arbor and engages.The bossing of nut can be arranged to non-revolved body; Like the regular hexagon post; Depression at work arbor also correspondingly is arranged to regular polygon, is similar to the depression of soket head cap screw, and the convexity of nut just can realize that the profile locking engages with the depression of work arbor like this; Just can prevent that operation from executing turns round the unit and tightens or unscrew in the nut process, the generation of the phenomenon that nut spins with screw rod.Otherwise also can be arranged to the convexity of nut to be recessed into, be arranged to convexity to the depression of work arbor, can realize that also the profile locking engages; The spacing preiection of the spacing working head that the working head receiving terminal of the work arbor that also can utilize is provided with matches with the depression that establishes the nut relevant position and to realize that the profile locking engages.
Turn round unit (40) the clutch interface (42) that matches with the bar head (22) of screw rod (20) go up to be set executing.The cross section of the bar head (22) of screw rod (20) is generally regular hexagon; Lower end at the regular hexagon post of bar head (2) is designed to the cylinder of diameter less than the regular hexagon inscribed circle; Executing the corresponding shape of being arranged on the clutch interface (42) of turning round unit (40) with bar head (22) of regular hexagon (like regular hexagon or 12 stars), execute turn round unit (40) but just can form clutch with screw rod.Turn round the unit and be in and the screw rod released state when executing, execute turn round the unit can be with the pendulum-type power tool work arbor reciprocally swinging of work; When need changing working head, make to execute and turn round the unit and engage, just can tighten or unscrew nut with screw rod.Execute the clutch of turning round unit and screw rod and switch, can execute through plug and turn round the unit and realize.Also can realize executing and turn round unit and screw rod clutch with other structure.Certainly execute to turn round between unit and the screw rod that clutch structure can be set, will execute and turn round the unit and directly be fixedly connected with screw rod and be integral, operation is executed and is turned round the unit and just can directly drive screw rod, this structure with operate all comparatively simple.
The reciprocally swinging work of pendulum-type power tool, need on screw rod, apply bigger moment of torsion (about 10～30N.m), could guarantee working head be fastened on reliably on the work arbor, non-slip.Bigger moment of torsion can be realized through following measure:
1. through being set, realizes the long arm of force.
(1) execute and turn round the unit bigger radial dimension is arranged, execute turn round the unit radial dimension D greater than 30mm, the operator has the bigger size that grips, and is convenient to screw rod is applied bigger moment of torsion.Otherwise, will can not make effectively.
(2) collapsible torsion bar or the telescopic torsion bar that increases of increasing is set executing to turn round on the unit.Turn round under the not too big prerequisite of unit profile guaranteeing to execute, increase torsion bar or the telescopic setting that increases torsion bar, increase arm of force length, be convenient to the operator screw rod is applied bigger moment of torsion through collapsible.Fig. 2 is provided with the collapsible embodiment that increases torsion bar executing to turn round on the unit, execute to turn round unit (40) and be provided with bearing pin (45) and the collapsible torsion bar (47) that increases, and the collapsible torsion bar (47) that increases can rotate around bearing pin (45).When need changing working head,, just can produce a bigger moment of torsion with less power as long as the unfolded formula increases torsion bar and increases the arm of force, with after need only the collapsible torsion bar that increases amounted to back to execute and turned round in the unit, can not influence the normal use of instrument.The telescopic torsion bar that increases is set executing to turn round on the unit, also can reaches same effect.
2. be provided with the planetary gear transmission on the unit and increase and turn round device executing to turn round.The planetary gear transmission is set increases and turn round device, wherein planetary progression is at least one-level, increases torsion effect through planetary deceleration, realizes that the operator realizes screw rod is applied the purpose of bigger moment of torsion.
Between working head and nut, flange is set.Flange can be an independent component, also can be to constitute one with nut to become flanged nut.Flange is set between nut and working head can be increased and the working head contact area, especially is arranged to the butterfly spring flange, can prevent preferably that the nut that causes owing to vibration in the pendulum-type power tool course of work from getting loose.
Above measure is that specific embodiment can be selected for use according to practice situation flexibly to the optimization of embodiment with additional.
Claims (9)
1. the pendulum-type power tool of an able to quickly change working head; The pendulum-type power tool comprises the work arbor of the hollow that is used to drive working head; Working head is fastened between the working head receiving terminal and nut of work arbor, it is characterized in that: described pendulum-type power tool is through executing and turn round the unit and drive the screw rod that passes work arbor and be connected fastening working head with nut thread at an upper portion thereof is set.
2. pendulum-type power tool according to claim 1 is characterized in that: the outer surface of described nut has the setting of work arbor being carried out profile locking joint.
3. pendulum-type power tool according to claim 1 is characterized in that: the described screw rod that passes work arbor is arranged to releasable connection or on-disconnectable the connection with work arbor.
4. pendulum-type power tool according to claim 1 is characterized in that: described executing turned round the unit and is fixedly connected with screw rod and is integral.
5. pendulum-type power tool according to claim 1 is characterized in that: described executing turned round the unit and is arranged to clutch with screw rod and is connected.
6. according to claim 1 or 2 or 3 or 4 or 5 described pendulum-type power tools, it is characterized in that: between described nut and working head, also be provided with flange, flange is independent component or constitutes one with nut.
7. according to claim 1 or 2 or 3 or 4 or 5 described pendulum-type power tools, it is characterized in that: described execute turn round the unit radial dimension greater than 30mm.
8. according to claim 1 or 2 or 3 or 4 or 5 described pendulum-type power tools, it is characterized in that: described execute to turn round be provided with collapsible torsion bar or the telescopic torsion bar that increases of increasing on the unit.
9. according to claim 1 or 2 or 3 or 4 or 5 described pendulum-type power tools, it is characterized in that: described executing turned round the unit and is provided with the planetary gear transmission and increases and turn round device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020697859XU CN202114712U (en) | 2010-12-25 | 2010-12-25 | Swinging-type power tool capable of quickly changing working head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020697859XU CN202114712U (en) | 2010-12-25 | 2010-12-25 | Swinging-type power tool capable of quickly changing working head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114712U true CN202114712U (en) | 2012-01-18 |
Family
ID=45455808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020697859XU Expired - Fee Related CN202114712U (en) | 2010-12-25 | 2010-12-25 | Swinging-type power tool capable of quickly changing working head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114712U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963026A (en) * | 2013-02-05 | 2014-08-06 | 苏州宝时得电动工具有限公司 | Swing power tool |
| CN104440799A (en) * | 2013-09-25 | 2015-03-25 | 苏州宝时得电动工具有限公司 | Power tool |
| CN105234905A (en) * | 2015-10-28 | 2016-01-13 | 利达机电有限公司 | Rapid clamping mechanism for saw blade of multifunctional shovel |
| CN106272269A (en) * | 2015-06-02 | 2017-01-04 | 南京德朔实业有限公司 | Power tool |
| CN106903657A (en) * | 2017-02-13 | 2017-06-30 | 南京德朔实业有限公司 | Power tool |
-
2010
- 2010-12-25 CN CN201020697859XU patent/CN202114712U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963026A (en) * | 2013-02-05 | 2014-08-06 | 苏州宝时得电动工具有限公司 | Swing power tool |
| CN104440799A (en) * | 2013-09-25 | 2015-03-25 | 苏州宝时得电动工具有限公司 | Power tool |
| CN104440799B (en) * | 2013-09-25 | 2017-07-18 | 苏州宝时得电动工具有限公司 | Power tool |
| CN106272269A (en) * | 2015-06-02 | 2017-01-04 | 南京德朔实业有限公司 | Power tool |
| CN105234905A (en) * | 2015-10-28 | 2016-01-13 | 利达机电有限公司 | Rapid clamping mechanism for saw blade of multifunctional shovel |
| CN106903657A (en) * | 2017-02-13 | 2017-06-30 | 南京德朔实业有限公司 | Power tool |
| CN106903657B (en) * | 2017-02-13 | 2019-08-06 | 南京德朔实业有限公司 | Power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20161225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |