CN104107949A - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
- Publication number
- CN104107949A CN104107949A CN201310132827.3A CN201310132827A CN104107949A CN 104107949 A CN104107949 A CN 104107949A CN 201310132827 A CN201310132827 A CN 201310132827A CN 104107949 A CN104107949 A CN 104107949A
- Authority
- CN
- China
- Prior art keywords
- guard shield
- connecting rod
- casing
- rotating shaft
- circular saw
- 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
Abstract
The invention discloses an electric circular saw. A fixed rod, a first connecting rod and a second connecting rod are arranged between a shield and a shell to form a four-rod linkage, so that the shield is driven to stably ascend or descend relative to the shell when the first connecting rod and the second connecting rod swing, the height of a portion, which is exposed out of a through hole in the bottom of the shield, of a circular saw blade is adjusted, and the circular saw blade can be used for cutting materials under different conditions. The electric circular saw is simple in structure; the height of the shield can be conveniently adjusted relative to the shell in a using process, so that the circular saw blade can be exposed out of the shield when used for cutting the materials; and the electric circular saw is high in reliability and has high using performance.
Description
Technical field
the present invention relates to a kind of electric circular saw, relate in particular to the conveniently adjusted electric circular saw of a kind of guard shield height.
?
Background technology
in prior art, the saw blade of electric circular saw is arranged on casing and by motor and drives rotationally, thereby on casing, being also provided with guard shield protects saw blade, the both sides of guard shield are respectively equipped with convex tendon, on casing, be provided with accordingly groove, convex tendon is inserted in groove and forms approximate rail structure, and guard shield can vertically be slided up and down on casing, by regulating the just position of adjustable guard shield on casing of the slip locations of convex tendon in groove, so that exposing, saw blade realizes cutting.Yet electric circular saw often produces a large amount of dusts in cutting process, dust easily enters in the slide rail between guard shield and casing, causes the guard shield retardance of sliding on casing, seriously affects the serviceability of electric circular saw.
?
Summary of the invention
the object of this invention is to provide a kind of electric circular saw being easy to use.
for achieving the above object, the technical solution used in the present invention is: a kind of electric circular saw, described electric circular saw comprises casing, for the handle gripping for user, on described casing, be provided with rotationally saw blade, for driving the driving mechanism of described saw blade rotation, on described saw blade, have at least part to expose the outside at described casing, described electric circular saw also comprises matching with described casing and is around in the guard shield in described saw blade outside, described guard shield is arranged on the bottom of described casing up and down, the bottom of described guard shield also offers and supplies described saw blade to pass and expose the through hole outside described guard shield, between described casing and described guard shield, be provided with for regulating the governor motion of described guard shield height, described governor motion comprises first connecting rod and the second connecting rod that can drive the relatively described casing lifting of described guard shield while swinging, on described casing, be provided with regularly fixed bar, described first connecting rod, one end of described second connecting rod is respectively by the first rotating shaft, the second rotating shaft is connected on the both ends of described fixed bar rotationally, described first connecting rod, the other end of described second connecting rod is respectively by the 3rd rotating shaft, the 4th rotating shaft is connected on described guard shield rotationally, described the first rotating shaft, described the second rotating shaft, described the 3rd rotating shaft, the equal along continuous straight runs of axial line of described the 4th rotating shaft distributes and is arranged in parallel.
preferably, the axial line of described fixed bar vertically distributes.
preferably, the bottom of described casing is provided with many push rods, and the axial line of described push rod vertically distributes, and on described push rod, is arranged with spring, conflicts respectively on described casing, described guard shield in the two ends of described spring.
utilization due to technique scheme, the present invention compared with prior art has following advantages: a kind of electric circular saw of the present invention, wherein by fixed bar, first connecting rod, second connecting rod formation quadric chain are set between guard shield and casing, make first connecting rod, second connecting rod drive the relative casing of guard shield to carry out lifting stably when swinging, thereby adjust saw blade, expose the height of guard shield bottom through-hole and meet the cutting of saw blade under different condition.This electric circular saw simple in structure, in use can adjust the height of the relative casing of guard shield easily, thereby make saw blade expose guard shield, cuts outward, and its reliability is high, and has good durability.
?
Accompanying drawing explanation
accompanying drawing 1 is the overall structure schematic diagram of electric circular saw in the present invention;
accompanying drawing 2 is the use view of electric circular saw in the present invention.
?
The specific embodiment
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
referring to the electric circular saw shown in Fig. 1～2, this electric circular saw comprises casing 1, the handle 2 for gripping for user, on casing 1, be provided with rotationally saw blade 3, and the driving mechanism (not shown) for driving saw blade 3 rotations to cut, driving mechanism can adopt motor.A part for saw blade 3 is housed in the inner chamber of casing 1, remainder exposes the outside at casing 1, the bottom of casing 1 is provided with guard shield 4, and guard shield 4 can be arranged on casing 1 bottom up and down, and the part that saw blade 3 exposes casing 1 outside can be housed in the inner chamber of guard shield 4.The bottom of guard shield 4 also offers for saw blade 3 and passes and expose the through hole (not shown) outside guard shield 4, and when the relative casing 1 of guard shield 4 rises, saw blade 3 just passes through hole outside, now can treat cut workpiece and carry out cutting processing.In the present embodiment, the bottom of casing 1 is provided with many push rod (not shown)s, the axial line of push rod vertically distributes, on push rod, be arranged with spring 12, conflicting respectively on casing 1 and guard shield 4 in the two ends of spring 12, so just can under the uncut state of this electric circular saw, all the time guard shield 4 be conflicted in the bottom of casing 1, makes guard shield 4 keep the cover of saw blade 3 to establish, when needs cut, overcome spring force and can make the up saw blade 3 that exposes of guard shield 4 carry out cutting processing.
shown in Fig. 1～2, between guard shield 4 and casing 1, be provided with for regulating the governor motion of guard shield 4 height, this governor motion is included in first connecting rod 6 and the second connecting rod 7 that can drive guard shield 4 relative casing 1 liftings while swinging, on casing 1, be provided with regularly fixed bar 5, one end of first connecting rod 6 is connected to one end of fixed bar 5 rotationally by the first rotating shaft 8, the other end of first connecting rod 6 is connected on guard shield 4 rotationally by the 3rd rotating shaft 10, one end of second connecting rod 7 is connected to the other end of fixed bar 5 rotationally by the second rotating shaft 9, the other end of second connecting rod 7 is connected on guard shield 4 rotationally by the 4th rotating shaft 11.The equal along continuous straight runs of axial line of above-mentioned the first rotating shaft 8, the second rotating shaft 9, the 3rd rotating shaft 10, the 4th rotating shaft 11 distributes and is arranged in parallel.
like this, between first connecting rod 6 and line, first connecting rod 6, second connecting rod 7 and the fixed bar 5 of second connecting rod 7 transit point on guard shield 4, just formed quadric chain, when first connecting rod 6, second connecting rod 7 swing up and down, guard shield 4 just swings up and down thereupon.Under uncut state, guard shield 4 is positioned at the bottom of casing 1, and saw blade 3 is housed in the inner chamber of casing 1 and guard shield 4, as shown in Figure 1 completely; When needs cut, as shown in Figure 2, operator's hand is upwards pressed one end of guard shield 4, first connecting rod 6, second connecting rod 7 just upwards swing around the first rotating shaft 8, the second rotating shaft 9 respectively, the whole casing 1 relatively of guard shield 4 is upwards swung reposefully, like this, saw blade 3 just passes to realize and has cut from the through hole of guard shield 4 bottoms.After cutting completes, unclamp the pressure holding to guard shield 4, under the elastic acting force of spring 12 and the effect of guard shield 4 self gravitations, guard shield 4 is fallen, and first connecting rod 6, second connecting rod 7 rotate the relative casing 1 of guard shield 4 is declined reposefully around the first rotating shaft 8, the second rotating shaft 9 respectively.
shown in Fig. 1, Fig. 2, the axial line of fixed bar 5 vertically distributes, arranging of first connecting rod 6, second connecting rod 7 need require to arrange according to the lifting of guard shield 4 relative casings 1, if need, guarantee that the relative casing 1 of guard shield 4 vertically stably carries out lifting, first connecting rod 6, second connecting rod 7, fixed bar 5, and the four-bar linkage structure that first connecting rod 6, the line of second connecting rod 7 tie point on guard shield 4 form is parallelogram.While realizing the skew of certain angle in the process that needs guard shield 4 in lifting, referring to the present embodiment shown in Fig. 1, Fig. 2, the different setting of length of first connecting rod 6, second connecting rod 7, like this, first connecting rod 6, second connecting rod 7 there will be certain pendulum angle poor while swinging, and make guard shield 4 that the skew of respective angles can occur.The angle value that the difference in length value of first connecting rod 6 and second connecting rod 7 and the 3rd rotating shaft 10, the position of the 4th rotating shaft 11 are offset is as required determined.
in sum, on electric circular saw in the present invention, by being set between guard shield 4 and casing 1, fixed bar 5, first connecting rod 6, second connecting rod 7 form quadric chains, make first connecting rod 6, second connecting rod 7 drive the relative casing 1 of guard shield 4 to carry out lifting stably when swinging, thereby adjust saw blade 3, expose the height of guard shield 4 bottom through-holes and meet the cutting of saw blade 3 under different condition.This electric circular saw simple in structure, in use can adjust the height of the relative casing of guard shield easily, thereby make saw blade expose guard shield, cuts outward, and its reliability is high, and has good serviceability.
above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. an electric circular saw, described electric circular saw comprises casing, for the handle gripping for user, on described casing, be provided with rotationally saw blade, for driving the driving mechanism of described saw blade rotation, on described saw blade, have at least part to expose the outside at described casing, described electric circular saw also comprises matching with described casing and is around in the guard shield in described saw blade outside, described guard shield is arranged on the bottom of described casing up and down, the bottom of described guard shield also offers and supplies described saw blade to pass and expose the through hole outside described guard shield, it is characterized in that: between described casing and described guard shield, be provided with for regulating the governor motion of described guard shield height, described governor motion comprises first connecting rod and the second connecting rod that can drive the relatively described casing lifting of described guard shield while swinging, on described casing, be provided with regularly fixed bar, described first connecting rod, one end of described second connecting rod is respectively by the first rotating shaft, the second rotating shaft is connected on the both ends of described fixed bar rotationally, described first connecting rod, the other end of described second connecting rod is respectively by the 3rd rotating shaft, the 4th rotating shaft is connected on described guard shield rotationally, described the first rotating shaft, described the second rotating shaft, described the 3rd rotating shaft, the equal along continuous straight runs of axial line of described the 4th rotating shaft distributes and is arranged in parallel.
2. a kind of electric circular saw according to claim 1, is characterized in that: the axial line of described fixed bar vertically distributes.
3. a kind of electric circular saw according to claim 1, it is characterized in that: the bottom of described casing is provided with many push rods, the axial line of described push rod vertically distributes, and on described push rod, is arranged with spring, conflicts respectively on described casing, described guard shield in the two ends of described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132827.3A CN104107949B (en) | 2013-04-17 | 2013-04-17 | A kind of electrotrephine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132827.3A CN104107949B (en) | 2013-04-17 | 2013-04-17 | A kind of electrotrephine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104107949A true CN104107949A (en) | 2014-10-22 |
| CN104107949B CN104107949B (en) | 2016-08-17 |
Family
ID=51705043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310132827.3A Active CN104107949B (en) | 2013-04-17 | 2013-04-17 | A kind of electrotrephine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104107949B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180885A (en) * | 2015-05-08 | 2016-12-07 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN109202172A (en) * | 2017-06-30 | 2019-01-15 | 苏州宝时得电动工具有限公司 | Portable electric annular saw |
| CN110449657A (en) * | 2019-08-21 | 2019-11-15 | 常州赛迪工具有限公司 | A kind of mini saw of liftable hand-held of bottom plate |
| CN110449973A (en) * | 2019-08-21 | 2019-11-15 | 常州赛迪工具有限公司 | A kind of protective device of mini saw movable shield manually |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10180701A (en) * | 1996-12-27 | 1998-07-07 | Makita Corp | Circular saw machine |
| DE20209464U1 (en) * | 2002-06-19 | 2003-10-30 | Metabowerke Gmbh | Circular saw table has saw gap wedge adjacent to saw blade and with height adjustable cover hood |
| CN201776519U (en) * | 2010-08-24 | 2011-03-30 | 奉化市威优特电器有限公司 | Electric circular saw with double movable guards |
| CN201841313U (en) * | 2010-01-29 | 2011-05-25 | 南京德朔实业有限公司 | Electric circular saw |
| BRPI1001822A2 (en) * | 2010-06-30 | 2012-03-27 | Silva Roberto Antonio Tavares Da | auto-lift protection enhancement for circular saw |
| CN102407381A (en) * | 2010-09-21 | 2012-04-11 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
-
2013
- 2013-04-17 CN CN201310132827.3A patent/CN104107949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10180701A (en) * | 1996-12-27 | 1998-07-07 | Makita Corp | Circular saw machine |
| DE20209464U1 (en) * | 2002-06-19 | 2003-10-30 | Metabowerke Gmbh | Circular saw table has saw gap wedge adjacent to saw blade and with height adjustable cover hood |
| CN201841313U (en) * | 2010-01-29 | 2011-05-25 | 南京德朔实业有限公司 | Electric circular saw |
| BRPI1001822A2 (en) * | 2010-06-30 | 2012-03-27 | Silva Roberto Antonio Tavares Da | auto-lift protection enhancement for circular saw |
| CN201776519U (en) * | 2010-08-24 | 2011-03-30 | 奉化市威优特电器有限公司 | Electric circular saw with double movable guards |
| CN102407381A (en) * | 2010-09-21 | 2012-04-11 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180885A (en) * | 2015-05-08 | 2016-12-07 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN106180885B (en) * | 2015-05-08 | 2018-09-07 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN109202172A (en) * | 2017-06-30 | 2019-01-15 | 苏州宝时得电动工具有限公司 | Portable electric annular saw |
| CN110449657A (en) * | 2019-08-21 | 2019-11-15 | 常州赛迪工具有限公司 | A kind of mini saw of liftable hand-held of bottom plate |
| CN110449973A (en) * | 2019-08-21 | 2019-11-15 | 常州赛迪工具有限公司 | A kind of protective device of mini saw movable shield manually |
| CN110449973B (en) * | 2019-08-21 | 2024-02-27 | 常州赛迪工具有限公司 | Protective device of manual mini saw movable shield |
| CN110449657B (en) * | 2019-08-21 | 2024-02-27 | 常州赛迪工具有限公司 | Hand-held mini saw with liftable bottom plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104107949B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104107949A (en) | Electric circular saw | |
| CN103746318A (en) | Line patrol operation obstacle removing device | |
| CN107073607B (en) | Pipe cutting equipment and its cutter head transmission system | |
| CN204094229U (en) | A kind of cutting machine | |
| CN204868284U (en) | Tool change mechanism of brill machine of attacking | |
| CN104772522A (en) | Handheld cutter | |
| CN203722127U (en) | Line patrol operation obstacle removing device | |
| CN109317754A (en) | Autoamtic cutter is used in a kind of production of customization plate | |
| CN204471475U (en) | Straight knife machine | |
| WO2014086376A3 (en) | Hand-held miter saw | |
| CN205766894U (en) | A kind of trimming machine for stones | |
| CN108453841A (en) | A kind of novel timber cutting equipment | |
| CN208906530U (en) | A kind of arc Cutting Automation equipment given birth to for customizing plate | |
| CN109015927A (en) | A kind of timber processing dust protected cutter device | |
| CN204209034U (en) | A kind of device being used for bending, cut off electric elements connecting pins | |
| CN104162612B (en) | A kind of device being used for bending, cut off electric elements connecting pins | |
| CN208867261U (en) | A kind of photo frame cutting device for processing | |
| CN204196002U (en) | A kind of brick cutting device improving cutting accuracy | |
| CN202985646U (en) | Safety protection device for manual able saw | |
| CN207283060U (en) | A kind of driving mechanism of cable steel first cutting machine cast-cutting saw slice | |
| CN202062474U (en) | Bevel edge cutting device of wooden strip | |
| FR3042175B1 (en) | TOOLS FOR THE HANDLING OF AN AIRCRAFT TURBOREACTOR NACELLE | |
| CN207239287U (en) | A kind of positioning stop gauge of pipe cutting machine | |
| CN104400115A (en) | Double-saw-blade reciprocating saw | |
| CN203738140U (en) | Cutting tool |
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 |