CN104440804A - Dustproof electric tool - Google Patents
Dustproof electric tool Download PDFInfo
- Publication number
- CN104440804A CN104440804A CN201310689974.0A CN201310689974A CN104440804A CN 104440804 A CN104440804 A CN 104440804A CN 201310689974 A CN201310689974 A CN 201310689974A CN 104440804 A CN104440804 A CN 104440804A
- Authority
- CN
- China
- Prior art keywords
- dust
- electric tool
- dustproof
- dustproof sheet
- housing
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Abstract
The invention discloses a dustproof electric tool. The dustproof electric tool comprises a machine body and a dustproof device for preventing dust from entering the machine body. The dustproof device comprises a shell and dustproof pieces, wherein the shell stretches forwards and backwards in the length direction of the machine body and is provided with a inner cavity, and the dustproof pieces are arranged in the inner cavity and can slide in the forward-and-backward direction of the shell. The rear end of the shell is closed and further provided with communicating holes allowing the dustproof pieces to pass through, multiple air inflow grooves for allowing the inner cavity and the external environment to be communicated are formed in the peripheral side wall of the shell, the dustproof pieces are provided with multiple air inflow holes, buckle parts are arranged at the front ends of the dustproof pieces, concave parts capable of being fixedly buckled to the buckle parts are arranged on the peripheral side wall of the inner cavity, when the buckle parts and the concave parts are fixedly buckled, the air inflow grooves are covered with the dustproof pieces, and at least part of the air inflow holes are communicated with the air inflow grooves. Compared with the prior art, the dustproof effect is guaranteed, the strength of the dustproof pieces is improved, and use of the electric tool is not affected.
Description
Technical field
The present invention relates to a kind of electric tool, particularly relate to a kind of electric tool with dust guard.
Background technology
Electric tool operationally, its motor can generate heat, therefore need to dispel the heat to it with heat abstractors such as fans, the housing of electric tool will inevitably offer for inspiration outside air to reduce the air inlet of motor temperature, for angle grinding machine, the width of its air inlet is generally and is not less than 3mm, but electric tool is often at dust, use in the enclosure space that soot density is larger, these impurity will be inner by air inlet entering tool like this, of long duration machine failure will inevitably be made, therefore for electric tool, certain dirt exclusion capabilities must be possessed.In the utility model patent that the name being CN203019328 at publication number is called " electric tool detachable air inlet Air Filter chip architecture ", describe a kind of dust-proof mesh sheet, this dust-proof mesh sheet is attached to the inner side of housing, cover the position of air inlet, and can dismantle from housing, but owing to needing to utilize the elasticity of dust-proof mesh sheet self outwards to move when it is dismantled, of long duration be easy to fracture, the name being CN101925443 at publication number is called in the patent of invention of " hand held electric tool with dust guard ", describe a kind of dust-proof mesh sheet be enclosed within outside housing of electric tool, but this annex be set in outside housing will inevitably make whole grip portions thicker, have impact on feel when user uses, and often and the external world touch, be easy to come off, Air Filter sheet is exposed to dust for a long time simultaneously, in the environment that soot density is larger, mesh is above easy to blocking, the air inlet of electric tool is directly all blocked by such meeting, at this moment this dust-proof mesh sheet has not only lost its original effect, the heat radiation of motor also can be made to be deteriorated.
Summary of the invention
The object of this invention is to provide a kind of dust-proof electric tool, this dust guard can realize blocks dust, dust enters electric tool inside, user can be facilitated again to operate this dust guard.
In order to overcome the defect of prior art, the invention provides a kind of dust-proof electric tool, comprise body, dust guard in described body is entered for preventing dust, described dust guard comprises the housing with hollow cavity extended before and after the length direction of described body, be located at the dustproof sheet that also can slide along the fore-and-aft direction of described housing in described inner chamber, described housing rear end is closed, the rear end of described housing offers the intercommunicating pore that described dustproof sheet can be made to pass through, the circumferential side wall of described housing offer multiple for being communicated with described inner chamber and extraneous air intake duct, described dustproof sheet has multiple fresh air inlet, it is characterized in that: the front end of described dustproof sheet has clamping part, the circumferential side wall of described inner chamber has and can fix the depressed part of buckle with described clamping part, when described clamping part and described depressed part fix buckle, described dustproof sheet covers described air intake duct, at least part of described fresh air inlet is communicated with described air intake duct.
Preferably, multiple described air intake duct extends along the fore-and-aft direction of described housing.
Further preferably, the circumferential side wall of described inner chamber is provided with the chute that the fore-and-aft direction along described housing extends, and described dustproof sheet can along described slide, and described depressed part is located at the front side of described chute.
Further preferably, the rear end of described dustproof sheet is provided with for gripping and the pulling portion of sliding to dustproof sheet described in tractive.
Preferably, the shape of described fresh air inlet is the one in circle, rhombus or rectangle.
Further preferably, described fresh air inlet is circular, and its diameter is 1mm, and the width of described air intake duct is not more than 3mm.
The dust-proof electric tool of the present invention effectively can reduce the probability of impurity entering tool inside, simultaneously simple structure and stable, does not affect other functions of electric tool.
Accompanying drawing explanation
Accompanying drawing 1 is the stereogram of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 2 is the side view of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 3 is the first state sectional view of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 4 is the second state sectional view of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 5 is the third state sectional view of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 6 is front view and the sectional view thereof of dust guard in the dust-proof electric tool of the present invention;
Accompanying drawing 7 is the schematic diagram of dustproof sheet in the dust-proof electric tool of the present invention.
In accompanying drawing:
1-housing, 2-dustproof sheet;
11-air intake duct, 12-chute, 13-depressed part, 14-intercommunicating pore;
21-fresh air inlet, 22-clamping part, 23-pulling portion.
Detailed description of the invention
Below in conjunction with accompanying drawing being preferred embodiment described in detail to the dust-proof electric tool of the present invention.
See accompanying drawing 1-7, the dust-proof electric tool of the present invention comprises body, dust guard.The body of body and general electric tool, it has length direction, and dust guard is generally positioned at the rear portion of body.Dust guard comprises the housing 1 prolonging and extend before and after the length direction of body, the inner chamber that housing 1 has, motor, transmission mechanism are all located in this inner chamber, the sidewall of housing 1 offers multiple air intake duct 11, the circumferential side wall of housing 1 inner chamber is provided with the chute 12 extended along the longitudinal direction, is provided with depressed part 13 in the side of chute 12; The back-end closure of housing 1, intercepts inner chamber with extraneous; The dustproof sheet 2 that can slide along housing 1 fore-and-aft direction is provided with in the inner chamber of housing 1, dustproof sheet 2 has multiple fresh air inlet 21, in the present embodiment, dustproof sheet 2 can slide along chute 12, when dustproof sheet 2 slides into bottom chute 12 forward completely, just cover air intake duct 11, have part fresh air inlet 21 to be communicated with air intake duct, the dust-proof electric tool of now the present invention is also in dust-proof state simultaneously; Be provided with clamping part 22 in the front end of dustproof sheet 2, when electric tool is in dust-proof state, clamping part 22 is just fixed with depressed part 13 bayonet socket; Pulling portion 23 is provided with in the rear end of dustproof sheet 2, intercommunicating pore 14 with pulling portion 23 mating shapes and corresponding with chute 12 is offered in the rear end of housing 1, pulling portion 23 is stretched out outside housing 1 by intercommunicating pore 14, if promote or pull pulling portion 23, dustproof sheet 2 can along chute 12 slide anteroposterior, according to the above-mentioned definition to fore-and-aft direction, on dustproof sheet 2, the one end at clamping part 22 place is front end, and the one end at pulling portion 23 place is rear end.
When user works under the environment that dust, dust are little, best radiating effect is had in order to make the motor of electric tool, by pulling pulling portion 23, dustproof sheet 2 can be taken out in intercommunicating pore 14, such air intake duct 11 is in communication with the outside completely, air intake space is comparatively large, and the radiating effect of motor is better.And when user is at dust, when working under the environment that dust is comparatively intensive, the importance now preventing these impurity from entering electric tool inside is greater than the importance of the radiating effect of motor, therefore need to use dustproof sheet 2: intercommunicating pore 14 is inserted in the front end of dustproof sheet 2, because intercommunicating pore 14 is corresponding with the position of chute 12, therefore dustproof sheet 2 aligns with chute 12 automatically, promote pulling portion 23 again, dustproof sheet 2 forwards slides along chute 12, when the clamping part 22 of dustproof sheet 2 front end slides into depressed part 13 place, clamping part 22 relies on natural resiliency to be close in depressed part 13, such dustproof sheet 2 is fixed by buckle, now air intake duct 11 is covered completely by dustproof sheet 2, inner chamber can only be kept to be communicated with extraneous by the fresh air inlet 21 on dustproof sheet 2, but intake is very limited, effectively can prevent extraneous dust like this, dust enters inner chamber by air intake duct 11.When taking out dustproof sheet 2, also only need pull a little pulling portion 23, clamping part 22 is made to depart from depressed part 13, this operation only can cause a little deformation of clamping part 22 in natural resiliency deformation range, when dustproof sheet 2 is drawn out of completely, dustproof sheet 2 can restore to the original state again, whole process is not subject to directly vertical with glide direction power, significantly reducing the probability that dustproof sheet 2 ruptures because excessively using, the present invention can be stood and repeatedly use.
Preferably, air intake duct 11 extends along the longitudinal direction, is divided into relative two groups; Dustproof sheet 2 is arranged in pairs, and each dustproof sheet 2 can cover one group of air intake duct when being in dust-proof state; Intercommunicating pore 14 is arranged in pairs, and its shape is circular arc, with the shape of cross section of corresponding dustproof sheet 2.
The shape of fresh air inlet 21 can be preferably the one in circle, rhombus or rectangle, for circle, the diameter of circle can be set to 1mm, be set to by the width of air intake duct 11 simultaneously and be not less than 3mm, can reach good dust-proof effect like this.
The present invention, compared to prior art, both ensure that dust-proof effect, turn improved the intensity of dustproof sheet, did not affect the use of electric tool simultaneously.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. a dust-proof electric tool, comprise body, dust guard in described body is entered for preventing dust, described dust guard comprises the housing (1) with hollow cavity extended before and after the length direction of described body, be located at the dustproof sheet (2) that also can slide along the fore-and-aft direction of described housing (1) in described inner chamber, described housing (1) back-end closure, the rear end of described housing (1) offers the intercommunicating pore (14) that described dustproof sheet (2) can be made to pass through, the circumferential side wall of described housing (1) offer multiple for being communicated with described inner chamber and extraneous air intake duct (11), described dustproof sheet (2) has multiple fresh air inlet (21), it is characterized in that: the front end of described dustproof sheet (2) has clamping part (22), the circumferential side wall of described inner chamber has can with the depressed part (13) of the fixing buckle of described clamping part (22), when described clamping part (22) buckle fixing with described depressed part (13), described dustproof sheet (2) covers described air intake duct (11), at least part of described fresh air inlet (21) is communicated with described air intake duct (11).
2. dust-proof electric tool according to claim 1, is characterized in that: multiple described air intake duct (11) extends along the fore-and-aft direction of described housing (1).
3. dust-proof electric tool according to claim 2, it is characterized in that: the circumferential side wall of described inner chamber is provided with the chute (12) that the fore-and-aft direction along described housing (1) extends, described dustproof sheet (2) can slide along described chute (12), and described depressed part (13) is located at the front side of described chute (12).
4. dust-proof electric tool according to claim 3, is characterized in that: the rear end of described dustproof sheet (2) is provided with for gripping and the pulling portion (23) of sliding to dustproof sheet described in tractive (2).
5. dust-proof electric tool according to claim 1, is characterized in that: the shape of described fresh air inlet (21) is the one in circle, rhombus or rectangle.
6. dust-proof electric tool according to claim 7, is characterized in that: described fresh air inlet (21) is for circular, and its diameter is 1mm, and the width of described air intake duct (11) is not more than 3mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689974.0A CN104440804B (en) | 2013-12-17 | A kind of dust-proof electric tool | |
| CN201611116041.2A CN106625458A (en) | 2013-12-17 | 2013-12-17 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689974.0A CN104440804B (en) | 2013-12-17 | A kind of dust-proof electric tool |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611116041.2A Division CN106625458A (en) | 2013-12-17 | 2013-12-17 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104440804A true CN104440804A (en) | 2015-03-25 |
| CN104440804B CN104440804B (en) | 2016-11-30 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437167A (en) * | 2015-11-18 | 2016-03-30 | 宁波工程学院 | Dustproof electric tool |
| CN108472802A (en) * | 2015-12-17 | 2018-08-31 | 罗伯特·博世有限公司 | Hand held power machine with filter-carrier |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550319A (en) * | 1949-02-07 | 1951-04-24 | Porter Cable Machine Co | Air filter head for portable abrading machines |
| EP1247612A1 (en) * | 2001-04-04 | 2002-10-09 | Robert Bosch Gmbh | Hand-held machine tool with dust extraction |
| CN201226121Y (en) * | 2008-04-25 | 2009-04-22 | 佛山市顺德区顺达电脑厂有限公司 | Fixed structure for hard disk |
| JP2010036260A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Portable tool |
| CN101925443A (en) * | 2008-02-15 | 2010-12-22 | 梅塔波沃克有限公司 | Dust-protected hand-held power tool |
| CN202108822U (en) * | 2011-06-03 | 2012-01-11 | 赵良才 | Modified plastic connecting piece |
| CN102990118A (en) * | 2011-09-09 | 2013-03-27 | 启东市东云机电有限公司 | High temperature prevention electric hand drill |
| CN203019328U (en) * | 2012-02-06 | 2013-06-26 | 陈伟 | Electric tool detachable air inlet dust-proof mesh structure |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550319A (en) * | 1949-02-07 | 1951-04-24 | Porter Cable Machine Co | Air filter head for portable abrading machines |
| EP1247612A1 (en) * | 2001-04-04 | 2002-10-09 | Robert Bosch Gmbh | Hand-held machine tool with dust extraction |
| CN101925443A (en) * | 2008-02-15 | 2010-12-22 | 梅塔波沃克有限公司 | Dust-protected hand-held power tool |
| CN201226121Y (en) * | 2008-04-25 | 2009-04-22 | 佛山市顺德区顺达电脑厂有限公司 | Fixed structure for hard disk |
| JP2010036260A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Portable tool |
| CN202108822U (en) * | 2011-06-03 | 2012-01-11 | 赵良才 | Modified plastic connecting piece |
| CN102990118A (en) * | 2011-09-09 | 2013-03-27 | 启东市东云机电有限公司 | High temperature prevention electric hand drill |
| CN203019328U (en) * | 2012-02-06 | 2013-06-26 | 陈伟 | Electric tool detachable air inlet dust-proof mesh structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437167A (en) * | 2015-11-18 | 2016-03-30 | 宁波工程学院 | Dustproof electric tool |
| CN108472802A (en) * | 2015-12-17 | 2018-08-31 | 罗伯特·博世有限公司 | Hand held power machine with filter-carrier |
| US11485006B2 (en) | 2015-12-17 | 2022-11-01 | Robert Bosch Gmbh | Hand-held power tool comprising a filter support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106625458A (en) | 2017-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |