CN103707274A - Electric tool push rod assembly - Google Patents
Electric tool push rod assembly Download PDFInfo
- Publication number
- CN103707274A CN103707274A CN201310743073.5A CN201310743073A CN103707274A CN 103707274 A CN103707274 A CN 103707274A CN 201310743073 A CN201310743073 A CN 201310743073A CN 103707274 A CN103707274 A CN 103707274A
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- push rod
- projection
- catch
- push
- electric tool
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Abstract
The invention provides an electric tool push rod assembly. The electric tool push rod assembly comprises a push rod and a driving unit and further comprises a push rod stop piece, wherein the push rod stop piece is rotatably connected to the driving unit and the plane where the rotating track is located is perpendicular to the axis of the push rod. An elastic reset mechanism is further arranged on the push rod stop piece. A push rod connection piece and a push rod button are further arranged on the push rod. A first protrusion is arranged on the push rod. A long hole is formed in the push rod connection piece. A cylindrical second protrusion is arranged at the top end of the push rod stop piece. A third protrusion which can abut against the second protrusion when moving in order to ensure that the push rod stop piece rotates is arranged on the push rod connection piece. Due to the adoption of the structure, the rear end of the push rod can be propped up when an electric tool works and the push rod can move freely when being moved backwards.
Description
Technical field
The present invention relates to a kind ofly with drum-type tool magazine, and rotatable tool storehouse is to change electric tool push-rod assembly used in the hand held electric tool of cutter.
Background technology
Publication number is that the Chinese patent application of CN101563192 discloses a kind of electric tool with drum-type tool magazine.This electric tool has pistol-shaped casing, and there is the upwardly extending main shaft in gun barrel side, electric tool output shaft is in the exit of gun barrel direction, it is a cutter dop, motor is housed in casing, drum-type tool magazine and transmission device, drum-type tool magazine is cylindrical structure, the axis of the axis of drum-type tool magazine and cutter dop is parallel to main shaft, drum-type tool magazine annular on self is provided with the cutter chamber parallel with main shaft, these cutter chambers occupy according to the position of rotation of drum-type tool magazine the lap position aligning with cutter dop respectively, in this lap position, corresponding cutter can shift between cutter chamber and cutter dop, described transfer is passed through in coaxial with cutter dop, the push-rod assembly of the operation saddle form being led in hull outside is realized.Drum-type tool magazine is formed on housing equally, and by the power transmission shaft of transmission device, run through in the central area that drum-type tool magazine is surrounded by cutter chamber, turning cylinder passes this tool magazine and is connected with cutter dop drive-type by gear, can be with cutter dop to rotate.
Adopt on the push rod of this structure electric instrument with magnet, in use, promote forward push-rod assembly the cutter in cutter chamber is shifted onto in cutter dop, while changing cutter, promote backward push-rod assembly, the cutter in cutter dop can be sucked back in cutter chamber.But it still has following deficiency, when will using, cutter can rotate, although now push rod can prop up cutter, prevent in cutter retraction electric tool, but the rear end of push rod does not have device to be used for propping up push rod, and anti-throw-out lever retreats, but also will be when changing cutter, just no longer prop up putting back-end, thereby can make push rod move backward.Therefore urgent need is a kind of at present can prop up putting back-end when electric tool is worked, and the electric tool push-rod assembly that can make again push rod move freely when push rod moves backward
Summary of the invention
Technical problem to be solved by this invention is, overcome the defect of prior art, provide a kind of and can when electric tool is worked, prop up putting back-end, and the electric tool push-rod assembly that can make again push rod move freely when push rod moves backward.
For solving the problems of the technologies described above, the present invention proposes a kind of electric tool push-rod assembly, and it comprises push rod, the position of push rod for cutter is pushed over to cutter dop; Driver element, for driving cutter dop to rotate;
It also comprises and being rotatably connected on driver element, and the push rod catch that the plane at its rotary motion trace place is vertical with the axis of push rod, on described push rod catch, be also provided with flexible restoring organ, at nature lower push-rod catch, face push rod, and offset with putting back-end face, at flexible restoring organ in holding under power state, thereby push rod catch rotates to side skew, the position of departing from pushrod movement;
On described push rod, be also provided with push rod brace and pusher button, described push rod is provided with the first projection, described push rod brace is provided with slotted hole, the first projection of described push rod is slidably fitted in slotted hole, described pusher button is connected with push rod brace, for promoting push rod brace and push rod, moves axially;
The top of described push rod catch is provided with columniform the second projection, thereby described push rod brace is provided with and when mobile, can props up the 3rd projection that the second projection is rotated push rod catch.
Adopt after said structure, the present invention has the following advantages: when electric tool is worked, in the raw, now, the rear end face of push rod and push rod catch offset flexible restoring organ, therefore can prevent that the cutter of electric tool from moving backward.
When changing cutter, promoting pusher button moves backward, drive push rod brace to move backward, thereby the projection of the 3rd on push rod brace promotes the second projection on push rod catch, thereby push rod catch is rotated allow out position, facilitate push rod to promote backward freely, flexible restoring organ is in holding power state simultaneously.
And push rod brace is provided with slotted hole, the first projection on push rod can be slided in slotted hole, like this at the beginning, the first projection is in the rear end of slotted hole, when push rod brace moves backward, because the first projection is slided in slotted hole, therefore push rod is motionless, now, push rod brace is mobile backward makes push rod catch rotate to side, until push rod catch allows open position completely, while not propping up again putting back-end face, the first projection slides into the front end of slotted hole, offset, thereby push rod brace just can drive push rod to move backward with slotted hole front end.Thereby anti-throw-out lever has some setbacks when moving backward.
As preferably, described flexible restoring organ is extension spring, and described extension spring one end is connected on driver element, and the other end is connected on push rod catch.Adopt extension spring as flexible restoring organ, simple in structure, cost is lower.
Do described the 3rd projection two sides be inclined-plane.Adopt this structure, two sides of the 3rd projection can offset with the second projection, and promote the second projection and make push rod catch motion.The power of fore-and-aft direction is converted to the power of side direction.
Described the 3rd end face of projection and the junction of two sides are equipped with chamfering.More smoothly smooth and easy while adopting this structure to make the second projection with respect to the 3rd projection movement.
Accompanying drawing explanation
The structural representation of push-rod assembly when Fig. 1 is electric tool work of the present invention;
Fig. 2 is the structural representation of push-rod assembly of the present invention when promoting backward;
Fig. 3 is the structural representation of push-rod assembly of the present invention after promoting backward;
As shown in the figure: 1, push rod, the 1.1, first projection, 2, driver element, 3, push rod catch, the 3.1, second projection, 4, push rod brace, 4., slotted hole, the 4.2, the 3rd projection, 4.3, side, 4.4, end face, 5, pusher button, 6, extension spring.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As shown in Figure 1, 2, 3, the invention provides a kind of electric tool push-rod assembly, it comprises push rod 1, and push rod 1 is for pushing over cutter the position of cutter dop; Driver element 2, for driving cutter dop to rotate;
It also comprises and being rotatably connected on driver element 2, and the push rod catch 3 that the plane at its rotary motion trace place is vertical with the axis of push rod 1, in the present embodiment, driver element 2 comprises gearbox, push rod catch 3 is rotatably connected on gearbox, gearbox is a cylindrical structural, the axis that push rod catch 3 rotates is identical with the axis of gearbox, on described push rod catch 3, be also provided with flexible restoring organ, at nature lower push-rod catch 3, face push rod 1, and offset with push rod 1 rear end face, at flexible restoring organ in holding under power state, thereby push rod catch 3 rotates and is offset to side, depart from the position of push rod 1 motion, the mechanism of spring reset described in the present embodiment is an extension spring 6, and push rod catch 3 is provided with drag hook, and one end of extension spring 6 is hooked on this drag hook, and the other end is fixed on the shell of gearbox.
On described push rod 1, be also provided with push rod brace 4 and pusher button 5, described push rod 1 is provided with the first projection 1.1, described push rod brace 4 is provided with slotted hole 4.1, the first projection 1.1 of described push rod 1 is slidably fitted in slotted hole 4.1, push rod brace 4 can drive push rod 1 to move forward and backward, described pusher button 5 is connected with push rod brace 4, for promoting push rod brace 4 and push rod 1 moves axially; Pusher button 5 stretches out outside the casing of electric tool, for people, promotes.Described moving axially is that push rod 1 moves forward and backward.
The top of described push rod catch 3 is provided with columniform the second projection 3.1, thereby described push rod brace 4 is provided with and when mobile, can props up the 3rd projection 4.2 that the second projection 3.1 is rotated push rod catch 3.Described the 3rd projection 4.2 two sides 4.3 be inclined-plane.When push rod brace 4 moves, side 4.3 and the second projection 3.1 offset, and the power of fore-and-aft direction are converted to the power of side surface direction, thereby promote push rod catch 3, rotate.
The end face 4.4 of described the 3rd projection 4.2 is equipped with chamfering with the junction of two sides 4.3.More smoothly smooth and easy while adopting this structure to make the second projection 3.1 with respect to the 3rd projection 4.2 motion.
When electric tool is worked, as shown in Figure 1, push rod moves forward to maximum position, now flexible restoring organ in the raw, extension spring 6 hauls push rod catch 3, and push rod catch 3 and the rear end face of push rod 1 are offseted, and therefore can prevent that the cutter of electric tool from moving backward.
When changing cutter, as shown in Figure 2, promoting pusher button moves backward, drive push rod brace to move backward, thereby the second projection 3.1 that the projection of the 3rd on push rod brace 4 4.2 promotes on push rod catch, thereby make push rod catch lateral rotation allow out position, facilitate push rod 1 to promote backward freely, flexible restoring organ is in holding power state simultaneously, as shown in Figure 3, when push rod 1 continues to promote backward, push rod 1 props up the anti-throw-out lever catch 3 of push rod catch 3 and resets, thereby push rod can be moved forward and backward smoothly.
And push rod brace 4 is provided with slotted hole 4.1, the first projection 1.1 on push rod 1 can be slided in slotted hole, like this at the beginning, as shown in Figure 1, the first projection 1.1 is in the rear end of slotted hole 4.1, when push rod brace 4 moves backward, because the first projection 1.1 is slided in slotted hole 4.1, therefore push rod 1 is motionless, now, push rod brace 4 is mobile backward makes push rod catch 3 rotate to side, until push rod catch 3 allows open position completely, while not propping up again push rod 1 rear end face, the first projection 1.1 slides into the front end of slotted hole 4.1, as shown in Figure 2, the first projection 1.1 offsets with slotted hole 4.1 front ends, thereby push rod brace 4 just can drive push rod 1 to move backward.Make push rod 1 when moving backward, reserved the distance of avoiding of one section of push rod catch, thereby anti-throw-out lever has some setbacks when moving backward.
Claims (4)
1. an electric tool push-rod assembly, it comprises push rod (1), push rod (1) is for pushing over cutter the position of cutter dop; Driver element (2), for driving cutter dop to rotate;
It is characterized in that: it also comprises and being rotatably connected on driver element (2), and the push rod catch (3) that the plane at its rotary motion trace place is vertical with the axis of push rod (1), on described push rod catch (3), be also provided with flexible restoring organ, at nature lower push-rod catch (3), face push rod (1), and offset with push rod (1) rear end face, at flexible restoring organ in holding under power state, push rod catch (3) thus rotate to side skew, the position of departing from push rod (1) motion;
On described push rod (1), be also provided with push rod brace (4) and pusher button (5), described push rod (1) is provided with the first projection (1.1), described push rod brace (4) is provided with slotted hole (4.1), first projection (1.1) of described push rod (1) is slidably fitted in slotted hole (4.1), described pusher button (5) is connected with push rod brace (4), for promoting push rod brace (4) and push rod (1) moves axially;
The top of described push rod catch (3) is provided with columniform the second projection (3.1), and described push rod brace (4) is provided with and when mobile, can props up the second projection (3.1) thereby the 3rd projection (4.2) that push rod catch (3) is rotated.
2. electric tool push-rod assembly according to claim 1, is characterized in that: described flexible restoring organ is extension spring (6), and it is upper that described extension spring (6) one end is connected to driver element (2), and the other end is connected on push rod catch (3).
3. electric tool push-rod assembly according to claim 1, is characterized in that: two sides (4.3) of described the 3rd projection (4.2) are inclined-plane.
4. electric tool push-rod assembly according to claim 3, is characterized in that: the end face (4.4) of described the 3rd projection (4.2) is equipped with chamfering with the junction of two sides (4.3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743073.5A CN103707274B (en) | 2013-12-30 | 2013-12-30 | Electric tool push-rod assembly |
| PCT/CN2014/070693 WO2014146506A1 (en) | 2013-11-20 | 2014-01-16 | Electric power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743073.5A CN103707274B (en) | 2013-12-30 | 2013-12-30 | Electric tool push-rod assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103707274A true CN103707274A (en) | 2014-04-09 |
| CN103707274B CN103707274B (en) | 2015-12-02 |
Family
ID=50400810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310743073.5A Expired - Fee Related CN103707274B (en) | 2013-11-20 | 2013-12-30 | Electric tool push-rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103707274B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0152169A1 (en) * | 1984-02-08 | 1985-08-21 | Tekna-Tool, Inc. | Multi-purpose tool |
| US4976175A (en) * | 1989-10-16 | 1990-12-11 | Hung Hsi Chiang | Multipurpose tool |
| CN201304637Y (en) * | 2008-11-12 | 2009-09-09 | 徐伟强 | Rotation control device for handle of electric tool |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
| US20100242689A1 (en) * | 2007-01-04 | 2010-09-30 | Duron Plastics Limited | Multiple-bit hand tool with locking axial post |
| CN203622383U (en) * | 2013-12-30 | 2014-06-04 | 宁波市海联电器有限公司 | Electric tool push rod component |
-
2013
- 2013-12-30 CN CN201310743073.5A patent/CN103707274B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0152169A1 (en) * | 1984-02-08 | 1985-08-21 | Tekna-Tool, Inc. | Multi-purpose tool |
| US4976175A (en) * | 1989-10-16 | 1990-12-11 | Hung Hsi Chiang | Multipurpose tool |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
| US20100242689A1 (en) * | 2007-01-04 | 2010-09-30 | Duron Plastics Limited | Multiple-bit hand tool with locking axial post |
| CN201304637Y (en) * | 2008-11-12 | 2009-09-09 | 徐伟强 | Rotation control device for handle of electric tool |
| CN203622383U (en) * | 2013-12-30 | 2014-06-04 | 宁波市海联电器有限公司 | Electric tool push rod component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103707274B (en) | 2015-12-02 |
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| 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 | ||
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| 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: 20151202 Termination date: 20181230 |