CN105437167A - Dustproof electric tool - Google Patents
Dustproof electric tool Download PDFInfo
- Publication number
- CN105437167A CN105437167A CN201510797367.5A CN201510797367A CN105437167A CN 105437167 A CN105437167 A CN 105437167A CN 201510797367 A CN201510797367 A CN 201510797367A CN 105437167 A CN105437167 A CN 105437167A
- Authority
- CN
- China
- Prior art keywords
- seal sleeve
- air outlet
- electric tool
- bellows
- 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
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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
- B25F5/008—Cooling means
Abstract
The invention discloses a dustproof electric tool which comprises a shell, air outlets and a sealed sheath. The sealed sheath is provided with through holes which are matched with the air outlets in number and position, and a stopping block is arranged on the inner side wall of the sealed sheath. The dustproof electric tool further comprises a push mechanism arranged on one side of the stopping block. The push mechanism comprises a closely-arranged corrugated pipe; one end of the corrugated pipe is connected with the stopping block, and the other end of the corrugated pipe is fixed to the shell; gas is introduced into the corrugated pipe to enable the corrugated pipe to expand and elongate when heated. Compared with the prior art, when the dustproof electric tool is at a normal temperature, the air outlets are sealed by the side wall of the sealed sheath so that dust cannot come into the tool; when the dustproof electric tool is at a high temperature, the through holes and the air outlets are communicated so that a motor can be cooled conveniently, and safety and practicality are achieved.
Description
Technical field
The invention belongs to field of power tools, particularly relate to a kind of dust-proof electric tool.
Background technology
Electric tool, such as electric drill, electric hammer, percussion drill etc., its structure mainly comprises housing, is provided with motor in housing, and the outer wall that housing is positioned at motor position sets out air port.Air outlet is mainly used in electric tool heat in use to distribute, and causes damage to prevent motor overheating.
But said structure also exists certain problem, owing to having air outlet, the dust therefore in environment enters enclosure interior easily via air outlet.Dust easily causes harmful effect to the serviceability of electric tool when enclosure interior accumulation is too much, and greatly can reduce the service life of electric tool.
Be " 201520370934.4 " to this number of patent application, name is called the structure disclosing a kind of electric tool in the utility model patent of " electric tool ", it comprises housing, is positioned at the motor of housing rear end and is positioned at the air outlet that the outer wall of motor position is arranged at housing, after electric tool, end housing is provided with opening, rotate in described opening and seal sleeve is set, described seal sleeve is provided with air outlet quantity and position to the through hole mated.In use, rotary seal sleeve makes air outlet be in opening to above-mentioned electric tool, now can proper heat reduction; When being in unused state, rotary seal sleeve makes air outlet be in closed condition, and now dust will be difficult to enter electric tool inside.
Although said structure solves electric tool dust when not using and easily enters inner problem, but it is existing defects still: 1) because this electric tool adds extra operating procedure, namely need the rotary seal sleeve when non-usage that air outlet is closed, and rotary seal sleeve makes air outlet be opened in use, what operating procedure was become is more loaded down with trivial details, is unfavorable for its promotion and implementation; 2) operating personnel easily forget and open seal sleeve thus heat in electric tool use procedure cannot be shed in time, cause electric tool to damage.
Based on the problems referred to above, the applicant devises a kind of structure of electric tool, see Fig. 1, comprise housing 1, be positioned at the motor 2 of housing 1 rear end and be positioned at the air outlet 3 that the outer wall of motor position is arranged at described housing 1, be positioned at described air outlet 3 position in described housing 1 inside and seal sleeve 4 is set, described seal sleeve 4 is provided with the through hole 40 with air outlet quantity and location matches, a protruding block 41 is had in described seal sleeve 4 arranged outside, the chute 10 slided for described protruding block 41 is provided with at described housing 1 inwall, also comprise a return unit 42, described return unit 42 makes described seal sleeve have the trend of reverse rotation, described chute 10 one end is provided with electromagnet 43, described electromagnet 43 and described motor 2 link (namely electromagnet 43 is connected in the supply line 100 of motor 2) with make described motor 2 when starting described electromagnet 43 must electric must magnetic, described protruding block 41 is the material that can be attracted by electromagnet, when described protruding block 41 is attracted to make it by described electromagnet 43 and described electromagnet leans, described air outlet 3 is communicated with the through hole 40 on described seal sleeve 4, when described electromagnet 43 loss of excitation, described seal sleeve 4 rotates and makes its sidewall block described air outlet 3 under the effect of return unit.
Said structure makes electric tool only just open air outlet for heat radiation when starting, but in use find its still existing problems, if electric tool only starts a bit of time and just cuts out, its motor temperature is not very high, does not need necessity of heat radiation; In addition, when each two states starting electric tool and closedown electric tool frequently switches, seal sleeve change rotation repeatedly resets, and makes return unit easily produce mechanical fatigue.The problems referred to above, urgently to be resolved hurrily.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of dust-proof electric tool.
The present invention is achieved through the following technical solutions: dust-proof electric tool, comprise housing, be positioned at the motor of housing rear end and be positioned at the air outlet that the outer wall of motor position is arranged at described housing, be positioned at described air outlet position in described enclosure interior and seal sleeve is set, described seal sleeve is provided with the through hole with air outlet quantity and location matches, described seal sleeve madial wall is provided with block, also comprise the pushing mechanism being arranged on block side, described pushing mechanism comprises the bellows of airtight setting, one end of described bellows is connected with described block, the other end and the housing of described bellows are fixed, in bellows, passing into gas can expand elongation to make bellows when being heated, when motor temperature is in normal temperature range, described seal sleeve its sidewall under the effect of bellows blocks described air outlet, when motor temperature is higher than normal temperature, described bellows extends and promotes described block, make described seal sleeve turn to described air outlet and be communicated with position with the through hole on described seal sleeve.
In technique scheme, also comprise a return unit, described return unit makes described seal sleeve have the trend of rotation.
In technique scheme, described return unit is be arranged on torsion spring or the wind spring that described seal sleeve is rotationally connected place.
In technique scheme, a protruding block is had in described seal sleeve arranged outside, the chute slided for described protruding block is provided with in described inner walls, when described protruding block is positioned at described chute one end, described air outlet is communicated with the through hole on seal sleeve, when described protruding block is positioned at the chute other end, the sidewall of described seal sleeve blocks described air outlet.
In technique scheme, described housing comprises the L-type mounting bracket being shaped in its inside, and the other end of described bellows is fixed on this L-type mounting bracket.
The present invention has following beneficial effect: electric tool of the present invention when motor is in normal temperature, air outlet close by seal sleeve sidewall, can not enter to make dust; When motor is higher than normal temperature, through hole is communicated with air outlet, can realize the heat radiation of motor easily, easy to use, safe and practical.
Accompanying drawing explanation
Fig. 1 is the structural representation in background technology.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the cross-sectional schematic along A-A place in Fig. 1.
Fig. 4 be seal sleeve with housing coordinate schematic diagram.
Fig. 5 is the variable condition figure of bellows.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
See Fig. 1 to Fig. 5, dust-proof electric tool, dust-proof electric tool, comprise housing 1, be positioned at the motor 2 of housing 1 rear end and be positioned at the air outlet 3 that the outer wall of motor position is arranged at described housing 1, be positioned at described air outlet 3 position in described housing 1 inside and seal sleeve 4 is set, described seal sleeve 4 is provided with the through hole 40 with air outlet quantity and location matches, and described housing 1 comprises the L-type mounting bracket 11 being shaped in its inside.
Described seal sleeve 4 madial wall is provided with block 5, also comprise the pushing mechanism 6 being arranged on block 5 side, described pushing mechanism 6 comprises the bellows 60 of airtight setting, and one end of described bellows 60 is connected with described block 5, and the other end of described bellows 60 is fixed on L-type mounting bracket 11.In bellows 60, passing into gas can expand elongation to make bellows 60 when being heated, when motor temperature is in normal temperature range, described seal sleeve 4 its sidewall under the effect of bellows 60 blocks described air outlet 3, when motor 2 temperature is higher than normal temperature, described bellows 60 extends and promotes described block 5, makes described seal sleeve 4 turn to described air outlet 3 and is communicated with position with the through hole 40 on described seal sleeve 4.
Preferably, also comprise a return unit 42, described return unit 42 makes described seal sleeve 4 have the trend of rotation.Described return unit 42 is rotationally connected the torsion spring w at place for being arranged on described seal sleeve 4, certain described torsion spring also can replace with wind spring, and a demand fulfillment return unit can make described seal sleeve 4 have the trend of rotation.Due to the setting of return unit 42, make seal sleeve 4 under return unit and bellows acting in conjunction, the air outlet on its sidewall blocking housing.Namely make when motor is in normal temperature, air outlet is closed.
A protruding block 41 is had in described seal sleeve 4 arranged outside, the chute 10 slided for described protruding block 41 is provided with at described housing 1 inwall, when described protruding block 41 is positioned at described chute 10 one end, described air outlet 3 is communicated with the through hole 40 on seal sleeve 4, when described protruding block 41 is positioned at chute 10 other end, the sidewall of described seal sleeve 4 blocks described air outlet 3.Said structure is mainly used in preventing at bellows because variations in temperature is excessive, and causing its transition to promote described block and cause through hole 40 and air outlet 3 to aim at and cause cannot the problem of smooth ventilation.
That more than enumerates is only specific embodiments of the invention, obviously, the invention is not restricted to above embodiment.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should belong to protection scope of the present invention.
Claims (5)
1. dust-proof electric tool, comprise housing (1), be positioned at the motor (2) of housing (1) rear end and be positioned at the air outlet (3) that the outer wall of motor position is arranged at described housing (1), be positioned at described air outlet (3) position in described housing (1) inside and seal sleeve (4) is set, described seal sleeve (4) is provided with the through hole (40) with air outlet quantity and location matches, it is characterized in that: described seal sleeve (4) madial wall is provided with block (5), also comprise the pushing mechanism (6) being arranged on described block (5) side, described pushing mechanism (6) comprises the bellows (60) of airtight setting, one end of described bellows (60) is connected with described block (5), the other end of described bellows (60) and housing (1) are fixed, in described bellows (60), passing into gas can expand elongation to make described bellows (60) when being heated, when motor temperature is in normal temperature range, described seal sleeve (4) its sidewall under the effect of described bellows (60) blocks described air outlet (3), when described motor (2) temperature is higher than normal temperature, described bellows (60) extends and promotes described block (5), make described seal sleeve (4) turn to described air outlet (3) and be communicated with position with the through hole (40) on described seal sleeve (4).
2. dust-proof electric tool as claimed in claim 1, also comprises a return unit (42), and described return unit (42) makes described seal sleeve (4) have the trend of rotation.
3. dust-proof electric tool as claimed in claim 2, is characterized in that: described return unit (42) is rotationally connected torsion spring or the wind spring at place for being arranged on described seal sleeve (4).
4. as the dust-proof electric tool in claims 1 to 3 as described in any one, it is characterized in that: have a protruding block (41) in described seal sleeve (4) arranged outside, the chute (10) slided for described protruding block (41) is provided with at described housing (1) inwall, when described protruding block (41) is positioned at described chute (10) one end, described air outlet (3) is communicated with the described through hole (40) on described seal sleeve (4), when described protruding block (41) is positioned at described chute (10) other end, the sidewall of described seal sleeve (4) blocks described air outlet (3).
5. dust-proof electric tool as claimed in claim 1, is characterized in that: described housing (1) comprises the L-type mounting bracket (11) being shaped in its inside, and the other end of described bellows (60) is fixed on this L-type mounting bracket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797367.5A CN105437167B (en) | 2015-11-18 | 2015-11-18 | Dust-proof electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797367.5A CN105437167B (en) | 2015-11-18 | 2015-11-18 | Dust-proof electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437167A true CN105437167A (en) | 2016-03-30 |
| CN105437167B CN105437167B (en) | 2017-10-13 |
Family
ID=55548039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510797367.5A Active CN105437167B (en) | 2015-11-18 | 2015-11-18 | Dust-proof electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105437167B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049016A (en) * | 2017-05-12 | 2017-08-18 | 重庆杰鑫直饮水净化设备有限公司 | Convenient and healthy water dispenser |
| CN111404305A (en) * | 2019-06-03 | 2020-07-10 | 电子科技大学中山学院 | New energy automobile motor end cover and bearing room structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205055Y (en) * | 1994-05-09 | 1995-08-09 | 陈福成 | Heat protector of electric motor |
| CN101230993A (en) * | 2008-02-04 | 2008-07-30 | 美的集团有限公司 | Insect-proof induction cooker |
| JP2010036260A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Portable tool |
| CN101892893A (en) * | 2010-07-02 | 2010-11-24 | 辽宁工程技术大学 | Engineering machinery engine energy-saving cooling fan |
| US20100323593A1 (en) * | 2008-02-15 | 2010-12-23 | Volker Hoeschele | Dust-protected hand-held power tool |
| CN104440804A (en) * | 2013-12-17 | 2015-03-25 | 苏州宝时得电动工具有限公司 | Dustproof electric tool |
| CN204686831U (en) * | 2014-10-15 | 2015-10-07 | 宁波耀升工具实业有限公司 | Electric tool |
-
2015
- 2015-11-18 CN CN201510797367.5A patent/CN105437167B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205055Y (en) * | 1994-05-09 | 1995-08-09 | 陈福成 | Heat protector of electric motor |
| CN101230993A (en) * | 2008-02-04 | 2008-07-30 | 美的集团有限公司 | Insect-proof induction cooker |
| US20100323593A1 (en) * | 2008-02-15 | 2010-12-23 | Volker Hoeschele | Dust-protected hand-held power tool |
| JP2010036260A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Portable tool |
| CN101892893A (en) * | 2010-07-02 | 2010-11-24 | 辽宁工程技术大学 | Engineering machinery engine energy-saving cooling fan |
| CN104440804A (en) * | 2013-12-17 | 2015-03-25 | 苏州宝时得电动工具有限公司 | Dustproof electric tool |
| CN204686831U (en) * | 2014-10-15 | 2015-10-07 | 宁波耀升工具实业有限公司 | Electric tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049016A (en) * | 2017-05-12 | 2017-08-18 | 重庆杰鑫直饮水净化设备有限公司 | Convenient and healthy water dispenser |
| CN111404305A (en) * | 2019-06-03 | 2020-07-10 | 电子科技大学中山学院 | New energy automobile motor end cover and bearing room structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437167B (en) | 2017-10-13 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Bu Xiaowei Inventor after: Liang Rong Inventor after: Ji Yingping Inventor before: Liang Rong |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210317 Address after: 518109 708, Huiyi building, 9 Zhongxin Road, Taoyuan community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hongyue Information Technology Co.,Ltd. Address before: 315016 Zhejiang Province, Ningbo city Haishu District cypress Road No. 89 Patentee before: Ningbo University of Technology |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220628 Address after: 223800 No.15 Hangzhou Road, Longhe New Town Economic Development Zone, Sucheng District, Suqian City, Jiangsu Province Patentee after: Suqian Mingdong Electric Appliance Co.,Ltd. Address before: 518109 708, Huiyi building, 9 Zhongxin Road, Taoyuan community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Hongyue Information Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |