CN103707274B - Electric tool push-rod assembly - Google Patents
Electric tool push-rod assembly Download PDFInfo
- Publication number
- CN103707274B CN103707274B CN201310743073.5A CN201310743073A CN103707274B CN 103707274 B CN103707274 B CN 103707274B CN 201310743073 A CN201310743073 A CN 201310743073A CN 103707274 B CN103707274 B CN 103707274B
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- China
- Prior art keywords
- push rod
- projection
- catch
- brace
- electric tool
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Abstract
The present invention proposes a kind of electric tool push-rod assembly, it comprises push rod, driver element, it also comprises and is rotatably connected on driver element, and the push rod catch of the plane at its rotary motion trace place and the axes normal of push rod, described push rod catch is also provided with flexible restoring organ, described push rod is 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 elongated hole, the top of described push rod catch is provided with columniform second projection, described push rod brace is provided with and can props up the second projection thus the push rod catch is rotated the 3rd projection when mobile.Adopt this structure, putting back-end can be propped up when electric tool works, and push rod can be made again when push rod moves backward to move freely.
Description
Technical field
The present invention relates to a kind of 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 main shaft extended on gun barrel direction, electric tool output shaft is in the exit in gun barrel direction, it is a cutter dop, casing is built with motor, drum-type tool magazine and transmission device, drum-type tool magazine is cylindrical structure, the axis of drum-type tool magazine and the axis being parallel of cutter dop are in main shaft, drum-type tool magazine annular on self is provided with the cutter room parallel with main shaft, these cutter rooms occupy the lap position aligned with cutter dop respectively according to the position of rotation of drum-type tool magazine, in this lap position, corresponding cutter can shift between cutter room and cutter dop, described be displaced through be in cutter dop coaxial, the push-rod assembly of the operation saddle form led in hull outside realizes.Drum-type tool magazine is formed on housing equally, and run through by the power transmission shaft of transmission device in the central area that drum-type tool magazine is surrounded by cutter room, turning cylinder is passed this tool magazine and is connected with cutter dop drive-type by gear, can rotate by carry its tools dop.
With magnet on the push rod adopting this structure electric instrument, in use, the cutter in cutter room is shifted onto in cutter dop by driven forward push-rod assembly, when changing cutter, promotes push-rod assembly backward, the cutter in cutter dop can be sucked back in cutter room.But it still has following deficiency, cutter can rotate when will use, although now push rod can prop up cutter, prevent in cutter retraction electric tool, but the rear end of push rod does not then have device to be used for propping up push rod, anti-throw-out lever retreats, but also will when changing cutter, just no longer prop up putting back-end, thus push rod can be made to move backward.Therefore be badly in need of one at present and can prop up putting back-end when electric tool works, and the electric tool push-rod assembly that push rod moves freely can be made again when push rod moves backward.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defect of prior art, provides one and can prop up putting back-end when electric tool works, and can make again the electric tool push-rod assembly that push rod moves 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, and push rod is used for the position of cutter being pushed over cutter dop; Driver element, rotates for driving cutter dop;
It also comprises and is rotatably connected on driver element, and the push rod catch of the plane at its rotary motion trace place and the axes normal of push rod, described push rod catch is also provided with flexible restoring organ, push rod catch faces push rod in its natural state, and offset with putting back-end face, under flexible restoring organ is in and stores power state, push rod catch rotates thus to side-shift, deviates from the position of pushrod movement;
Described push rod is 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 elongated hole, first projection of described push rod is slidably fitted in elongated 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 second projection, and described push rod brace is provided with and can props up the second projection thus the push rod catch is rotated the 3rd projection when mobile.
After adopting said structure, the present invention has the following advantages: when electric tool works, and in the raw, now, rear end face and the push rod catch of push rod offset flexible restoring organ, therefore can prevent the cutter of electric tool from moving backward.
When changing cutter, promote pusher button to move backward, push rod brace is driven to move backward, thus protruding the second projection promoted on push rod catch of the 3rd on push rod brace, thus push rod catch is rotated allow out position, facilitate push rod to promote backward freely, flexible restoring organ is in and stores power state simultaneously.
And push rod brace is provided with elongated hole, the first projection on push rod can be slided in elongated hole, like this at the beginning, first projection is in the rear end of elongated hole, when push rod brace moves backward, because the first projection is slided in elongated hole, therefore push rod is motionless, now, push rod brace backward movement push rod catch is rotated, until push rod catch allows open position completely to side, when namely not propping up putting back-end face again, first projection slides into the front end of elongated hole, offsets with elongated hole front end, thus push rod brace just can drive push rod to move backward.Thus 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, structure is simple, and cost is lower.
Do described 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 push rod catch is moved.The power of fore-and-aft direction is converted to the power of side direction.
The described end face of the 3rd projection and the junction of two sides are equipped with chamfering.This structure is adopted to make the second projection relative to smooth more during the 3rd projection movement.
Accompanying drawing explanation
The structural representation of push-rod assembly when Fig. 1 is electric tool of the present invention work;
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, 1.1, first is protruding, and 2, driver element, 3, push rod catch, 3.1, second is protruding, and 4, push rod brace, 4.1, elongated hole, the 4.2, the 3rd is protruding, and 4.3, side, 4.4, end face, 5, pusher button, 6, extension spring.
Detailed description of the invention
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 the position of cutter dop by cutter; Driver element 2, rotates for driving cutter dop;
It also comprises and is rotatably connected on driver element 2, and the push rod catch 3 of the axes normal of the plane at its rotary motion trace place and 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, described push rod catch 3 is also provided with flexible restoring organ, push rod catch 3 faces push rod 1 in its natural state, and offset with push rod 1 rear end face, under flexible restoring organ is in and stores power state, push rod catch 3 rotates thus to side-shift, deviate from the position that push rod 1 moves, spring return mechanism 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.
Described push rod 1 is 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 elongated hole 4.1, first projection 1.1 of described push rod 1 is slidably fitted in elongated 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, promotes for people.The described i.e. push rod 1 that moves axially moves forward and backward.
The top of described push rod catch 3 is provided with columniform second projection 3.1, and described push rod brace 4 is provided with and can props up second protruding 3.1 thus the 3rd projection 4.2 that push rod catch 3 is rotated when mobile.Described 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, thus promotion push rod catch 3 rotates.
The end face 4.4 of described 3rd projection 4.2 is equipped with chamfering with the junction of two sides 4.3.Smooth more when adopting this structure to make 4.2 motion protruding relative to the 3rd of the second projection 3.1.
When electric tool works, 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, push rod catch 3 is offseted with the rear end face of push rod 1, therefore can prevent the cutter of electric tool from moving backward.
When changing cutter, as shown in Figure 2, promote pusher button to move backward, push rod brace is driven to move backward, thus the 3rd on push rod brace 4 protruding 4.2 promotes the second projection 3.1 on push rod catch, thus make push rod catch lateral rotation allow out position, push rod 1 is facilitated to promote backward freely, flexible restoring organ is in and stores 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, thus push rod can be moved forward and backward smoothly.
And push rod brace 4 is provided with elongated hole 4.1, the first projection 1.1 on push rod 1 can be slided in elongated hole, like this at the beginning, as shown in Figure 1, first projection 1.1 is in the rear end of elongated hole 4.1, when push rod brace 4 moves backward, because the first projection 1.1 is slided in elongated hole 4.1, therefore push rod 1 is motionless, now, push rod brace 4 backward movement push rod catch 3 is rotated to side, until push rod catch 3 allows open position completely, when namely not propping up push rod 1 rear end face again, first projection 1.1 slides into the front end of elongated hole 4.1, as shown in Figure 2, first protruding 1.1 offsets with elongated hole 4.1 front end, thus push rod brace 4 just can drive push rod 1 to move backward.Make push rod 1 when moving backward, that has reserved one section of push rod catch avoids distance, thus anti-throw-out lever has some setbacks when moving backward.
Claims (3)
1. an electric tool push-rod assembly, it comprises push rod (1), and push rod (1) is for shifting the position of cutter dop onto by cutter; Driver element (2), rotates for driving cutter dop;
It is characterized in that: it also comprises and is rotatably connected on driver element (2), and the push rod catch (3) of the axes normal of the plane at its rotary motion trace place and push rod (1), described push rod catch (3) is also provided with flexible restoring organ, push rod catch (3) faces push rod (1) in its natural state, and offset with push rod (1) rear end face, under flexible restoring organ is in and stores power state, push rod catch (3) rotates thus to side-shift, deviates from the position that push rod (1) moves;
Described push rod (1) is 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 elongated hole (4.1), first projection (1.1) of described push rod (1) is slidably fitted in elongated 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 second projection (3.1), and described push rod brace (4) is provided with and can props up the second projection (3.1) thus the 3rd projection (4.2) that push rod catch (3) is rotated when mobile;
Described flexible restoring organ is extension spring (6), and described extension spring (6) one end is connected on driver element (2), and the other end is connected on push rod catch (3).
2. electric tool push-rod assembly according to claim 1, is characterized in that: two sides (4.3) of described 3rd projection (4.2) are inclined-plane.
3. electric tool push-rod assembly according to claim 2, is characterized in that: the described end face (4.4) of the 3rd projection (4.2) and the junction of two sides (4.3) are equipped with chamfering.
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 CN103707274A (en) | 2014-04-09 |
| CN103707274B true 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) |
Families Citing this family (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 (5)
| 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 |
| CN203622383U (en) * | 2013-12-30 | 2014-06-04 | 宁波市海联电器有限公司 | Electric tool push rod component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2008203750B2 (en) * | 2007-01-04 | 2013-05-30 | Duron Plastics Limited | Multiple-bit hand tool with locking axial post |
-
2013
- 2013-12-30 CN CN201310743073.5A patent/CN103707274B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103707274A (en) | 2014-04-09 |
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