CN109249084A - Shield opening mechanism and electric tool - Google Patents
Shield opening mechanism and electric tool Download PDFInfo
- Publication number
- CN109249084A CN109249084A CN201710572556.1A CN201710572556A CN109249084A CN 109249084 A CN109249084 A CN 109249084A CN 201710572556 A CN201710572556 A CN 201710572556A CN 109249084 A CN109249084 A CN 109249084A
- Authority
- CN
- China
- Prior art keywords
- shield
- dynamic
- opening mechanism
- operating parts
- flexible strand
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of electric tool and dynamic shield opening mechanisms.The dynamic shield opening mechanism is used for electric tool, electric tool includes determining shield and dynamic shield, dynamic shield opening mechanism includes operating parts and flexible strand, operating parts includes operation portion and driving portion, operating parts can be rotated around operation portion relative to shield is determined, flexible strand is set around the driving portion of operating parts, and one end of flexible strand is determined shield relatively and fixed, and the relatively dynamic shield of the opposite other end is fixed.Electric tool, including main body, motor, work package, be fixedly connected on main body determine shield, can relative to determine shield rotation dynamic shield and above-mentioned dynamic shield opening mechanism, motor is set in main body, and drives work package rotation, determines shield and dynamic shield covers at outside work package.It in the electric tool for moving shield opening mechanism using this, by the way that flexible strand to be wound around on operating parts, is driven and is rotated by operating parts, the stroke of operating parts can be designed smaller, and the overall mechanism size for moving shield opening mechanism is also smaller.
Description
Technical field
The present invention relates to power tools technology field, in particular to a kind of shield opening mechanism and electric tool.
Background technique
The electric tools such as electric circular saw have a wide range of applications in numerous areas such as architectural engineerings, and electric circular saw, which generally comprises, to be revolved
The saw blade turned, the dynamic shield determining shield and being rotatably mounted being configured at around saw blade, determine shield and dynamic shield are provide with
To protect user not hurt by saw blade outside saw blade, when work, dynamic shield determines shield relatively and turns an angle with dew
A part of saw blade processes workpiece out.
A kind of opening mechanism of dynamic shield is that operating parts is directly connected to flexible strand dynamic shield is driven to open, in dynamic shield opening
During, the stroke of operating parts is larger, is not easy to arrange, size is also bigger, so that structure is not compact, user's operation is inconvenient.
Summary of the invention
Based on this, it is necessary to provide a kind of compact-sized, user's operation easily moves shield opening mechanism.
It there is a need to provide a kind of electric tool.
A kind of dynamic shield opening mechanism, is used for electric tool, and the electric tool includes main body, is fixedly connected on the master
Body determines shield, can be set in shaft relative to the dynamic shield and work package for determining shield rotation, the work package, the dynamic shield
Cover can be rotated around the shaft, and the dynamic shield opening mechanism includes operating parts and flexible strand, and the operating parts includes operation portion
And driving portion, the operating parts is relatively described to determine the movable setting of shield, and the flexible strand is set around the described of the operating parts
Driving portion, and one end of the flexible strand is relatively described determines shield and fix.
In the electric tool for moving shield opening mechanism using this, by the way that flexible strand to be wound around on operating parts, by operating parts
Movement is driven, the stroke of operating parts can be designed smaller, and the overall mechanism size for moving shield opening mechanism is also smaller, so that structure
It is compact, and manipulation operations part is only needed to move i.e. openable dynamic shield, it is easy to operate.
In one embodiment, the operating parts is determined in shield set on described.
In one embodiment, the dynamic shield opening mechanism further includes the fixed turntable of the relatively described dynamic shield, institute
The other end for stating flexible strand is fixedly connected on the turntable；The turntable is equipped with the second lug, the other end of the flexible strand
It is fixedly connected on second lug of the turntable.
In one embodiment, the operating parts can determine shield rotation relative to described around the operation portion.
In one embodiment, the driving portion is sheave portion, and the flexible strand is set around the sheave portion.
In one embodiment, the dynamic shield opening mechanism further includes guide wheel, and the flexible strand is set around described lead
On wheel, the guide wheel is relatively described to be determined shield and fixes, and is located at the driving portion and the phase of the flexible strand of the operating parts
Between one end fixed to the dynamic shield.
In one embodiment, the driving part of the operating parts determines shield with described respectively in the flexible strand
Between the relatively-stationary both ends of dynamic shield.
In one embodiment, the dynamic shield opening mechanism further includes that the operation portion of the relatively described operating parts is solid
Fixed handle, the handle, which is exposed to, described to be determined outside shield.
A kind of electric tool, including main body, motor, work package, be fixedly connected on the main body determine shield, can opposite institute
The dynamic shield and above-mentioned dynamic shield opening mechanism for determining shield rotation are stated, the motor is set in the main body, and drives the work
Workpiece rotation, it is described to determine shield and the dynamic shield covers at outside the work package.
In this electric tool, by the way that flexible strand to be wound around on operating parts, is driven and rotated by operating parts, the stroke of operating parts
It can be designed smaller, the overall mechanism size for moving shield opening mechanism is also smaller.
In one embodiment, the main body is equipped with first lug to be fixedly connected with one end of the flexible strand.
Detailed description of the invention
Fig. 1 is the first state structure sectional view of the electric tool of one embodiment of the invention；
Fig. 2 is the second status architecture cross-sectional view of electric tool shown in Fig. 1；
Fig. 3 is electric tool first state stereoscopic schematic diagram shown in Fig. 1；And
Fig. 4 is electric tool the second state stereoscopic schematic diagram shown in Fig. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements between the two.When an element is considered as " connection " another element, it be can be directly
It is connected to another element or may be simultaneously present element between the two.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Fig. 1 and Fig. 2 are please referred to, the electric tool of one embodiment of the invention includes main body 12, is fixedly connected on main body 12
Determine shield 14, can relative to determine shield 14 rotation dynamic shield 16 (see Fig. 3) and dynamic shield opening mechanism 18.Dynamic shield opening mechanism
18 include operating parts 182 and flexible strand 184, and operating parts 182 includes operation portion 1822 and driving portion 1824, and operating parts 182 can be around
Operation portion 1822 is rotated relative to shield 14 is determined, and flexible strand 184 is set around the driving portion 1824 of operating parts 182, and flexible strand 184
One end is determined shield 14 relatively and is fixed, and the relatively dynamic shield 16 of the opposite other end is fixed.
It is appreciated that operating parts 182 can also be non-relative to the rotation of shield 14 is determined in another embodiment, and shield 14 is determined relatively
It is mobile, it can equally make flexible strand 184 that dynamic shield 16 be driven to move, only need operation portion 182 that can determine the movement of shield 14, and then band relatively
The dynamic flexible strand 184 set on driving portion 1824 is adjusted to different location；In another embodiment, flexible strand 184 can not also be around
Set on driving portion 1824, such as aperture can be opened up on driving portion 1824, flexible strand 184 is passed through into the tap operation part 182 and is transported
Flexible strand 184 can be driven to adjust position during dynamic to drive dynamic shield 16 to open.Flexible strand 184 can be tightrope, steel wire
Rope etc..
In this electric tool, operating parts 182 can be made to determine the movement of shield 14 relatively, so that driving portion 1824 is driven to swing, if
It is raised or puts down with driving portion 1824 in the flexible strand 184 of driving portion 1824, thus can make the relatively dynamic shield 16 of flexible strand 184
Fixed one end drives dynamic shield 16 to rotate, so that shield be made to open or close.By the way that flexible strand 184 is wound around operating parts
It on 182, is driven and is moved by operating parts 182, the stroke of operating parts 182 can be designed smaller, move the entirety of shield opening mechanism 18
Mechanism size is also smaller, so that it is compact-sized, and manipulation operations part is only needed to move i.e. openable dynamic shield 16, it is easy to operate.
In the present embodiment, operating parts 182, which is set to, to be determined in shield 14.Determined in shield 14 by the way that operating parts 182 to be set to, can be made
Entire mechanical appearance is beautiful, and arranges convenience.
In the present embodiment, as shown in figure 3, the other end of flexible strand 184 corresponds to dynamic shield 16 determines the expansion of shield 14 relatively
The position of end 162 fix, convenient for opening dynamic shield 16.Further, fixed one end of the relatively dynamic shield 16 of flexible strand 184
, in this way can be convenient for rationally setting operating parts 182 positioned at the inside of dynamic shield 16, the i.e. side close to the shaft of work package, and grasp
182 length of workpiece can be smaller, keeps total more compact.
In the present embodiment, main body 12 is equipped with first lug 122 to be fixedly connected with one end of flexible strand 184.It is appreciated that
One end of flexible strand 184 is also securable to determine shield 14.Specifically, the middle part for determining shield 14 is fixed in one end of flexible strand 184.
In the present embodiment, dynamic shield opening mechanism 18 further includes the fixed turntable 186 of relatively dynamic shield 16, flexible strand 184
The other end be fixedly connected on turntable 186.Specifically, turntable 186 is equipped with the second lug 1862, the other end of flexible strand 184
It is fixedly connected on the second lug 1862 of turntable 186.It is appreciated that turntable 186 can also omit, directly by the another of flexible strand 184
One end is fixedly connected on dynamic shield 16.Specifically, moving shield 16 includes expansion with first state (such as Fig. 3 of masking work part
It is shown) and open to expose the second state (as shown in Figure 4) of work package, first state lower rotary table 186 is connect with flexible strand 184
Place and the second state lower rotary table 186 and 184 junction of flexible strand are located at shaft of the bottom plate of electric tool Jing Guo work package
Vertical line L1 (see Fig. 3 and Fig. 4) two sides.
In the present embodiment, moving shield opening mechanism 18 further includes guide wheel 188, and flexible strand 184 is set around on guide wheel 188, leads
Wheel 188 is determined shield 14 relatively and is fixed, and solid positioned at the relatively dynamic shield 16 of the driving portion 1824 of operating parts 182 and flexible strand 184
Between fixed one end.I.e. 184 one end of flexible strand is wound around on guide wheel 188 after being fixed on dynamic shield 16, further around being set to driving portion
On 1824, guide wheel 188 can be oriented to flexible strand 184, avoid disorder cable.
In the present embodiment, the driving portion 1824 of operating parts 182 be located at flexible strand 184 respectively with determine shield 14 and dynamic shield 16
Between relatively-stationary both ends.
In the present embodiment, dynamic shield opening mechanism 18 further includes the fixed handle of the operation portion 1822 of opposite operating parts 182
189, handle 189, which is exposed to, to be determined outside shield 14.When operation, hand-holdable handle 189 is to drive operating parts 182 around 1822 turns of operation portion
It is dynamic, determine to be convenient to operation outside shield 14 since handle 189 is exposed to.
In the present embodiment, dynamic shield opening mechanism 18 further includes replying part (not shown), to make its time to the application of handle 189
The restoring force of original state is arrived again, and shield 16 is moved under original state and determines the expansion of shield 14 relatively.Specifically, replying part can be drawing
Spring.It is appreciated that replying part can also be other elastic components or the magnetic parts such as torsional spring.
In the present embodiment, electric tool further includes motor and work package, and motor is set in main body 12, and work package is driven to turn
It is dynamic, determine shield 14 and dynamic shield 16 covers at outside work package, work package is set in shaft, and dynamic shield can be rotated around the shaft and be beaten
On or off is closed.Specifically, work package can be saw blade, and electric tool can be electric circular saw.
When not using electric tool, referring to Fig. 3, dynamic shield 16 is in the state for determining the expansion of shield 14 relatively；Work as electricity
When power driven tools work, referring to Fig. 4, being manually operable handle 189 makes its swing, so that operating parts 182 be driven to rotate certain angle
Degree, and then one end of flexible strand 184 is driven to rotate certain distance, the dynamic shield 16 fixed relative to the end rotates with it certain angle
Degree, that is, rotate as with determine shield 14 gathering state；After hours, the restoring force for replying part can drive dynamic shield 16 automatic
Return back to the state of expansion.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of dynamic shield opening mechanism, is used for electric tool, the electric tool includes main body, is fixedly connected on the main body
Determine shield, can relative to it is described determine shield rotation dynamic shield and work package, the work package be set to shaft on, the dynamic shield
It can be rotated around the shaft, which is characterized in that the dynamic shield opening mechanism includes operating parts and flexible strand, the operating parts packet
Operation portion and driving portion are included, the operating parts is relatively described to determine the movable setting of shield, and the flexible strand is set around the operation
The driving portion of part, and one end of the flexible strand is relatively described determines shield and fix, the relatively described dynamic shield of the opposite other end
Cover is fixed.
2. dynamic shield opening mechanism according to claim 1, which is characterized in that the operating parts determines shield set on described
It is interior.
3. dynamic shield opening mechanism according to claim 1, which is characterized in that the dynamic shield opening mechanism further includes phase
The turntable fixed to the dynamic shield, the other end of the flexible strand are fixedly connected on the turntable；The turntable is equipped with the
Two lugs, the other end of the flexible strand are fixedly connected on second lug of the turntable.
4. dynamic shield opening mechanism according to claim 1, which is characterized in that the operating parts can be around the operation portion phase
Shield rotation is determined to described.
5. dynamic shield opening mechanism according to claim 1 or 4, which is characterized in that the driving portion is sheave portion, described
Flexible strand is set around the sheave portion.
6. dynamic shield opening mechanism according to claim 5, which is characterized in that the dynamic shield opening mechanism further includes leading
Wheel, the flexible strand is set around on the guide wheel, and the guide wheel is relatively described determine shield and fix, and positioned at the institute of the operating parts
Between the one end for stating the relatively described dynamic shield fixation of driving portion and the flexible strand.
7. dynamic shield opening mechanism according to claim 5, which is characterized in that the driving part of the operating parts in
The flexible strand is determined between shield and the relatively-stationary both ends of dynamic shield with described respectively.
8. dynamic shield opening mechanism according to claim 1, which is characterized in that the dynamic shield opening mechanism further includes phase
To the handle that the operation portion of the operating parts is fixed, the handle, which is exposed to, described to be determined outside shield.
9. a kind of electric tool, which is characterized in that including main body, motor, work package, be fixedly connected on the main body determine shield
Cover, can relative to it is described determine shield rotate dynamic shield and claim 1-8 any one described in dynamic shield opening mechanism, it is described
Motor is set in the main body, and drives work package rotation, described to determine shield and the dynamic shield covers at the work
Outside part.
10. electric tool according to claim 9, which is characterized in that the main body is equipped with first lug and is connected with fixed
Connect one end of the flexible strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572556.1A CN109249084B (en) | 2017-07-13 | 2017-07-13 | Shield opening mechanism and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572556.1A CN109249084B (en) | 2017-07-13 | 2017-07-13 | Shield opening mechanism and electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109249084A true CN109249084A (en) | 2019-01-22 |
| CN109249084B CN109249084B (en) | 2019-08-27 |
Family
ID=65050721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710572556.1A Active CN109249084B (en) | 2017-07-13 | 2017-07-13 | Shield opening mechanism and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109249084B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10124439A1 (en) * | 2001-05-18 | 2002-11-21 | Bosch Gmbh Robert | Protective hood of an electric angle grinder has an expanding clamp band held around a shaped housing collar about which it may be turned and clamped |
| CN2565572Y (en) * | 2002-08-12 | 2003-08-13 | 宁波经济技术开发区中强电动工具有限公司 | Self locking device of bias cutter protective hood |
| US7377202B1 (en) * | 1999-05-14 | 2008-05-27 | Makita Corporation | Lighted power tools |
| CN201172127Y (en) * | 2008-03-17 | 2008-12-31 | 圣杰机器工业股份有限公司 | Circular sawing machining with protecting-hood safety positioning structure |
| CN201760667U (en) * | 2010-06-28 | 2011-03-16 | 南京德朔实业有限公司 | Miter saw |
| CN102658398A (en) * | 2010-01-04 | 2012-09-12 | 泉峰(中国)贸易有限公司 | Electric tool |
| CN104858494A (en) * | 2014-02-21 | 2015-08-26 | 苏州宝时得电动工具有限公司 | Cutter |
| CN205852466U (en) * | 2016-07-28 | 2017-01-04 | 黄姣 | Electric angle grinder abrasive cut-off wheel guard shield |
-
2017
- 2017-07-13 CN CN201710572556.1A patent/CN109249084B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7377202B1 (en) * | 1999-05-14 | 2008-05-27 | Makita Corporation | Lighted power tools |
| DE10124439A1 (en) * | 2001-05-18 | 2002-11-21 | Bosch Gmbh Robert | Protective hood of an electric angle grinder has an expanding clamp band held around a shaped housing collar about which it may be turned and clamped |
| CN1462222A (en) * | 2001-05-18 | 2003-12-17 | 罗伯特·博施有限公司 | Hand electric tool comprising guard |
| CN2565572Y (en) * | 2002-08-12 | 2003-08-13 | 宁波经济技术开发区中强电动工具有限公司 | Self locking device of bias cutter protective hood |
| CN201172127Y (en) * | 2008-03-17 | 2008-12-31 | 圣杰机器工业股份有限公司 | Circular sawing machining with protecting-hood safety positioning structure |
| CN102658398A (en) * | 2010-01-04 | 2012-09-12 | 泉峰(中国)贸易有限公司 | Electric tool |
| CN201760667U (en) * | 2010-06-28 | 2011-03-16 | 南京德朔实业有限公司 | Miter saw |
| CN104858494A (en) * | 2014-02-21 | 2015-08-26 | 苏州宝时得电动工具有限公司 | Cutter |
| CN205852466U (en) * | 2016-07-28 | 2017-01-04 | 黄姣 | Electric angle grinder abrasive cut-off wheel guard shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109249084B (en) | 2019-08-27 |
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