CN107756203B - Purifying mechanism and electric tool - Google Patents
Purifying mechanism and electric tool Download PDFInfo
- Publication number
- CN107756203B CN107756203B CN201610668862.0A CN201610668862A CN107756203B CN 107756203 B CN107756203 B CN 107756203B CN 201610668862 A CN201610668862 A CN 201610668862A CN 107756203 B CN107756203 B CN 107756203B
- Authority
- CN
- China
- Prior art keywords
- purification
- purifying
- main body
- inlet
- outlet
- 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.)
- Active
Links
- 238000000746 purification Methods 0.000 claims abstract description 65
- 239000000428 dust Substances 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000010926 purge Methods 0.000 description 38
- 238000001816 cooling Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The purifying mechanism comprises a purifying main body, wherein a purifying channel is arranged in the purifying main body, the purifying channel rotates along the circumferential direction by taking the central line of the purifying main body as an axis and extends along the axial direction, and a purifying inlet, a purifying outlet and a dust discharging port are formed in the purifying main body; the purification inlet sets up along the tangential direction of purification main part and communicates with the one end of purification passageway, and the purification export sets up in purification passageway axis direction and communicates with the other end of the relative purification inlet of purification passageway, and the dust exhaust mouth sets up in purification main part along the tangential direction of purification main part and keeps away from one side of purification inlet and communicates with purification passageway. According to the electric tool, the purification channel is arranged, so that external air entering tangentially along the purification inlet rotates to the purification outlet along the inner wall of the purification channel, dust mixed in the air is settled under the action of centrifugal force and discharged through the dust discharge port, and the interior of the electric tool is cooled and radiated. The invention also provides an electric tool with the purifying mechanism.
Description
Technical Field
The present invention relates to an electric tool for grinding, cutting or polishing, and more particularly, to a cleaning mechanism and an electric tool with the same.
Background
The angle grinder and polisher are one kind of common electric tool and have the main operation principle of grinding, polishing, etc. with the grinding wheel fixed onto the output shaft and rotating with the output shaft.
Since the power tool rotates at a very high speed and accumulates a very large amount of heat during operation, a ventilation opening is usually provided in a surface of the housing, and a cooling air flow is formed through the ventilation opening to load the driving member with the cooling air flow for cooling and heat dissipation. However, dust is often entrained in the air entering from the outside, and when the dust enters the inside of the driving part and is deposited, the driving part is obviously damaged, thereby greatly reducing the service life of the electric tool.
Disclosure of Invention
Based on this, it is necessary to provide a purge mechanism for purging gas that enters the interior of the power tool to extend the useful life of the power tool.
It is also necessary to provide a power tool with the purge mechanism.
The purifying mechanism comprises a purifying main body, wherein a purifying channel is arranged in the purifying main body, the purifying channel rotates along the circumferential direction by taking the central line of the purifying main body as an axis and extends along the axial direction, and the purifying main body is provided with a purifying inlet, a purifying outlet and a dust discharging port; the purification inlet is arranged along the tangential direction of the purification main body and is communicated with one end of the purification channel, the purification outlet is arranged on the axial direction of the purification channel and is communicated with the other end of the purification inlet opposite to the purification channel, and the dust exhaust port is arranged on one side, away from the purification inlet, of the purification main body and is communicated with the purification channel along the tangential direction of the purification main body.
In one embodiment, the purifying channel is formed by spiral rotation along the axial direction by taking the central line of the purifying body as an axis.
In one embodiment, the purge passage tapers from the purge inlet to the purge outlet with a diameter that is gradually smaller.
In one embodiment, the purifying mechanism comprises a front cover, the front cover comprises a ventilation pipe and a fixed edge formed by extending one end of the ventilation pipe along the circumferential direction, the purifying main body is sleeved outside the ventilation pipe and fixed on the fixed edge, and the ventilation pipe and the purifying main body are coaxially arranged and comprise an inlet end communicated with the purifying outlet and an outlet end opposite to the inlet end.
In one embodiment, the purifying mechanism comprises a rear cover, wherein the rear cover is arranged at one end of the purifying main body far away from the front cover and is blocked at one end of the purifying main body, which is provided with the purifying outlet.
An electric tool comprising the above-described cleaning mechanism.
In one embodiment, the electric tool includes a housing and a driving motor, the housing includes a housing and an end cover, the housing includes a first end and a second end located in an extension direction, the end cover is disposed on the first end and defines a housing cavity with the housing, the purifying mechanism is housed in the housing cavity and is pressed against the end cover, and the driving motor is disposed in the housing cavity and is close to the second end.
In one embodiment, the electric tool includes a guide fan disposed in the housing, the first end and the second end are respectively provided with an air inlet and an air outlet, which are communicated with the accommodating cavity, the purifying inlet and the air inlet are aligned in the purifying mechanism, the outlet end of the purifying outlet of the purifying mechanism faces the driving motor, and the guide fan is disposed at one end, far away from the purifying mechanism, of the driving motor and is located between the air inlet and the air outlet.
In one embodiment, the electric tool includes a control assembly disposed between the driving motor and the purifying mechanism, one end of the purifying mechanism is fixedly mounted on the control assembly, and the other end of the purifying mechanism is pressed against the end cover.
In one embodiment, the power tool is an angle grinder.
The electric tool is provided with the purification mechanism, and the purification mechanism is provided with the purification channel, so that external air entering tangentially along the purification inlet rotates to the purification outlet along the inner wall of the purification channel. In this process, particles such as dust mixed in the air are settled under the action of centrifugal force and discharged through the dust discharge port, and the purified air flows into the electric tool through the purification outlet so as to cool and dissipate heat in the electric tool. Thus, by means of purifying the external air before introducing, particulate matters are prevented from entering and depositing in various parts of the electric tool, such as a motor, and the service life of the electric tool is prolonged.
Drawings
FIG. 1 is a cross-sectional view of an electric tool according to the present invention in an axial direction;
FIG. 2 is a schematic diagram showing a combination of a purifying mechanism and a part of a housing in the electric tool shown in FIG. 1;
FIG. 3 is a schematic view of the purification mechanism shown in FIG. 1;
FIG. 4 is a cross-sectional view of the purification mechanism shown in FIG. 3 taken along the direction B1-B1;
fig. 5 is a cross-sectional view of the purification mechanism shown in fig. 3 taken along the direction B2-B2.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, in a preferred embodiment of the present invention, a power tool 100 includes a housing 10, a driving motor 20 disposed in the housing 10, a working head 30 rotatably disposed on the housing 10, a transmission mechanism 40 connected between the driving motor 20 and the working head 30, a control assembly 50, and a purifying mechanism 60. The purifying mechanism 60 is disposed in the casing 10, and is used for purifying the external air entering the casing 10, so that the purified air cools and dissipates heat of the driving motor 20. In this embodiment, the electric tool 100 is an angle grinder, and the working head 30 disposed on the casing 10 is a corresponding grinding wheel. It should be understood that in other embodiments, the power tool 100 may be another tool such as a polisher, and the working head 30 may be a corresponding polishing head, which is not limited herein.
The housing 10 includes a housing 11 and an end cap 13. The housing 11 includes a first end 110 and a second end 112 in an elongated direction. The end cap 13 is disposed on the first end 110 of the housing 11, and defines a receiving cavity 15 with the housing 11. The first end 110 and the second end 112 of the housing 11 are respectively provided with an air inlet (not shown) and an air outlet (not shown) which are communicated with the accommodating cavity 15. In this particular embodiment, the end cap 13 is secured to the second end 112 of the housing 11 by means of screws. It will be appreciated that in other embodiments, the end cap 13 may be secured by other securing means, not limited herein.
The drive motor 20, the control unit 50, and the purge mechanism 60 are disposed in the housing 11 in this order along the extension direction of the housing 11. The driving motor 20 is disposed in the accommodating cavity 15 and near the second end 112 of the housing 11, for providing a rotational driving force to the working head 30. The control assembly 50 is disposed between the drive motor 20 and the purge mechanism 60 for controlling the drive motor 20. The purifying mechanism 60 is disposed in the accommodating cavity 15 and near the first end 110 of the housing 11.
Specifically, the drive motor 20 includes a rotor shaft 21, and the power tool 100 further includes a blower fan 70 disposed within the housing 11. The rotor shaft 21 is disposed in the housing 11 along the axial direction, and the air guiding fan 70 is disposed at one end of the driving motor 20, which is far away from the purifying mechanism 60, and is located between the air inlet and the air outlet. Thus, when the diversion fan 70 rotates along with the rotor shaft 21, a negative pressure cavity is formed in the whole accommodating cavity 15, external cold air enters the accommodating cavity 15 from the air inlet, flows through the whole driving motor 20 along the axial direction of the rotating shaft 21, and carries heat generated by the driving motor 20 to be discharged from the air outlet, so that cooling and heat dissipation of the driving motor 20 are realized.
The control unit 50 is a main switch unit in this embodiment, and is used to control the on/off of the driving motor 20.
Referring to fig. 2 and 3, one end of the purifying mechanism 60 is fixedly mounted on the control assembly 50, and the end cover 13 is pressed against the end of the purifying mechanism 60 away from the control assembly 50 to stably fix the purifying mechanism 60 to the casing 10. The purge mechanism 60 includes a purge body 61, and a front cover 62 and a rear cover 63 provided on opposite sides of the purge body 61.
Referring to fig. 4 and 5, specifically, a purifying channel 610 is disposed in the purifying body 61, the purifying channel 610 rotates circumferentially around a center line of the purifying body 61 and extends in a tapered manner along an axial direction, and a purifying inlet 612, a purifying outlet 614 and a dust exhaust port 616 are formed in the purifying body 61. The purge inlet 612 is disposed along a tangential direction of the purge body 61 and communicates with one end of the purge passage 610, the purge outlet 614 is disposed in an axial direction of the purge passage 610 and communicates with the other end of the purge passage 610 opposite to the purge inlet 612, and the dust discharge port 616 is disposed along a tangential direction of the purge body 61 at a side of the purge body 61 away from the purge inlet 612 and communicates with the purge passage 610.
Further, the purge passage 610 is formed by rotating spirally in the axial direction about the center line of the purge body 61, and the diameter of the purge passage 610 gradually decreases from the purge inlet 612 toward the purge outlet 614, that is, the purge passage 610 is a tapered spiral passage. Thus, when the outside air enters the purge inlet 612 tangentially from the air inlet, it flows to one end of the purge outlet 614 in a spiral rotation manner under the guidance of the purge channel 610, and the particulate matters entrained in the air are settled under the centrifugal force and discharged from the dust discharge port 616.
The front cover 62 includes a ventilation pipe 620 and a fixing edge 622 formed by extending one end of the ventilation pipe 620 in a circumferential direction, the purification body 61 is sleeved outside the ventilation pipe 620 and fixed on the fixing edge 622, and the ventilation pipe 620 is coaxially disposed with the purification body 61 and includes an inlet end 621 communicating with the purification outlet 614 and an outlet end 623 opposite to the inlet end 621. Since the receiving chamber 15 is under negative pressure by the flow-guiding fan 70, the purified air flowing out from the purifying outlet 614 enters the ventilating pipe 620 through the inlet end 621 of the ventilating pipe 620 and rapidly flows into the receiving chamber 15 through the outlet end 623 to cool each component disposed in the receiving chamber 15. In this particular embodiment, the securing edge 622 secures the entire purification mechanism 60 to the control assembly 50 using screws. It will be appreciated that in other embodiments, the purging mechanism 60 may be secured to other components of the power tool 100 by other securing means, such as, but not limited to, the inner wall of the housing 11.
The rear cover 63 is disposed at an end of the purifying body 61 far from the front cover 62, and is plugged at an end of the purifying body 61 where the purifying outlet 614 is disposed, so as to ensure a negative pressure state in the accommodating cavity 15, and further guide the purified air to enter the accommodating cavity 15 from the purifying outlet 614 through the ventilating pipe 620.
The electric tool 100 of the present invention is provided with the purge mechanism 60, and the purge mechanism 60 is provided with the spiral purge passage 610 so that the outside air entering tangentially along the purge inlet 612 is spirally rotated along the inner wall of the purge passage 610 to the purge outlet 614. In this process, particles such as dust mixed in the air are settled by centrifugal force and discharged through the dust discharge port 616, and the purified air flows into the interior of the electric tool 100 through the purification outlet 614 to cool and dissipate heat inside the electric tool 100. In this way, by means of the first purification and then introduction of the external air, the particulate matter is prevented from entering and depositing in the respective components of the electric tool 100, such as the driving motor 20, etc., thereby extending the service life of the electric tool 100.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. An electric tool, characterized in that: the electric tool comprises a shell, a driving motor, a diversion fan, a purifying mechanism, a working head and a transmission mechanism, wherein the transmission mechanism is connected between the driving motor and the working head;
the shell comprises a shell body and an end cover, the shell body comprises a first end and a second end which are positioned in the extending direction, the end cover is arranged on the first end and is jointly defined with the shell body to form a containing cavity, the driving motor, the guide fan and the purifying mechanism are arranged in the containing cavity, and an air inlet and an air outlet which are communicated with the containing cavity are respectively formed in the first end and the second end in a penetrating manner; the guide fan is arranged at one end of the driving motor, which is far away from the purifying mechanism, and is positioned between the air inlet and the air outlet;
the purifying mechanism comprises a purifying main body, a purifying channel is arranged in the purifying main body, the purifying channel rotates circumferentially by taking the central line of the purifying main body as an axis and extends axially, and a purifying inlet, a purifying outlet and a dust exhaust port are formed in the purifying main body; the purification inlet is arranged along the tangential direction of the purification main body and is communicated with one end of the purification channel, the purification outlet is arranged along the axial direction of the purification channel and is communicated with the other end of the purification channel opposite to the purification inlet, the dust discharge port is arranged on one side of the purification main body away from the purification inlet along the tangential direction of the purification main body and is communicated with the purification channel, and the purification inlet is aligned with the air inlet;
the purifying channel is formed by spirally rotating along the axial direction by taking the central line of the purifying main body as an axis;
the purification channel gradually reduces in diameter and extends from the purification inlet to the purification outlet.
2. The power tool of claim 1, wherein: the purification mechanism comprises a front cover, the front cover comprises a ventilation pipe and a fixed edge formed by extending one end of the ventilation pipe along the circumferential direction, the purification main body is sleeved outside the ventilation pipe and fixed on the fixed edge, and the ventilation pipe and the purification main body are coaxially arranged and comprise an inlet end communicated with the purification outlet and an outlet end opposite to the inlet end.
3. The power tool of claim 2, wherein: the purification mechanism comprises a rear cover, wherein the rear cover is arranged at one end of the purification main body far away from the front cover and is blocked at one end of the purification main body, which is provided with the purification outlet.
4. The power tool of claim 1, wherein: the purifying mechanism is propped against the end cover, and the driving motor is close to the second end.
5. The power tool of claim 2, wherein: the outlet end of the ventilation tube faces the drive motor.
6. The power tool of claim 1, wherein: the electric tool comprises a control assembly arranged between the driving motor and the purifying mechanism, one end of the purifying mechanism is fixedly arranged on the control assembly, and the other end of the purifying mechanism is propped against the end cover.
7. The power tool of claim 1, wherein: the electric tool is an angle grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668862.0A CN107756203B (en) | 2016-08-15 | 2016-08-15 | Purifying mechanism and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668862.0A CN107756203B (en) | 2016-08-15 | 2016-08-15 | Purifying mechanism and electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107756203A CN107756203A (en) | 2018-03-06 |
| CN107756203B true CN107756203B (en) | 2023-12-08 |
Family
ID=61259782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610668862.0A Active CN107756203B (en) | 2016-08-15 | 2016-08-15 | Purifying mechanism and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107756203B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1953948A (en) * | 1930-01-16 | 1934-04-10 | Bieth Tom Conrad | Separator |
| US4311494A (en) * | 1977-09-26 | 1982-01-19 | Facet Enterprises, Inc. | Axial flow gas cleaning device |
| JPS61263662A (en) * | 1985-04-19 | 1986-11-21 | ザ・ブラツク・クロ−ソン・カンパニ− | Centrifugal cleaner |
| JP2001121039A (en) * | 1999-10-26 | 2001-05-08 | Ishikawajima Harima Heavy Ind Co Ltd | Solid separation apparatus |
| EP1097749A1 (en) * | 1999-11-05 | 2001-05-09 | Bayerische Motoren Werke Aktiengesellschaft | Cyclone air filter with electrostatic separator |
| US6350292B1 (en) * | 1998-11-24 | 2002-02-26 | Lg Electronics Inc. | Cyclone collector for a vacuum cleaner having a flow guide |
| CN1347294A (en) * | 1999-02-24 | 2002-05-01 | Lg电子株式会社 | Cyclone dust collector in vacuum cleaner |
| FR2857274A1 (en) * | 2003-07-08 | 2005-01-14 | Liebherr Aerospace Gmbh | Water separator for air conditioning units in especially aircraft has separating chamber located around housing for collecting of water deposited on inner wall of housing and running into separating sump |
| CN2920421Y (en) * | 2006-06-09 | 2007-07-11 | 翟煜东 | Longitudinal gap internal circulation cyclone separator |
| CN101125423A (en) * | 2006-08-14 | 2008-02-20 | 苏州宝时得电动工具有限公司 | Hand-held electric tool |
| JP2013049115A (en) * | 2011-08-31 | 2013-03-14 | Makita Corp | Filtering device |
| WO2015033414A1 (en) * | 2013-09-05 | 2015-03-12 | ボルボ ラストバグナー アクチエボラグ | Gas-liquid separation device |
| CN104772704A (en) * | 2015-04-22 | 2015-07-15 | 南通大富士木工机械制造有限公司 | Cyclone grinding dust collection table |
| CN204546301U (en) * | 2015-04-22 | 2015-08-12 | 南通大富士木工机械制造有限公司 | Whirlwind polishing dust-collecting platform |
| EP2946887A1 (en) * | 2014-05-20 | 2015-11-25 | Black & Decker Inc. | Particle separation assembly for power tool |
| JP2016007680A (en) * | 2014-06-25 | 2016-01-18 | 日立工機株式会社 | Electric tool |
| CN206140259U (en) * | 2016-08-15 | 2017-05-03 | 苏州宝时得电动工具有限公司 | Purify mechanism and electric tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006255808A (en) * | 2005-03-15 | 2006-09-28 | Hitachi Koki Co Ltd | Power tool with dust collection function |
| US9119511B2 (en) * | 2007-03-02 | 2015-09-01 | Carl L. C. Kah, Jr. | Centrifugal dirt separation configurations for household-type and shop-type vacuum cleaners |
| US8800682B2 (en) * | 2010-10-01 | 2014-08-12 | Black & Decker Inc. | Dust extraction for power tools |
-
2016
- 2016-08-15 CN CN201610668862.0A patent/CN107756203B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1953948A (en) * | 1930-01-16 | 1934-04-10 | Bieth Tom Conrad | Separator |
| US4311494A (en) * | 1977-09-26 | 1982-01-19 | Facet Enterprises, Inc. | Axial flow gas cleaning device |
| JPS61263662A (en) * | 1985-04-19 | 1986-11-21 | ザ・ブラツク・クロ−ソン・カンパニ− | Centrifugal cleaner |
| US6350292B1 (en) * | 1998-11-24 | 2002-02-26 | Lg Electronics Inc. | Cyclone collector for a vacuum cleaner having a flow guide |
| CN1347294A (en) * | 1999-02-24 | 2002-05-01 | Lg电子株式会社 | Cyclone dust collector in vacuum cleaner |
| JP2001121039A (en) * | 1999-10-26 | 2001-05-08 | Ishikawajima Harima Heavy Ind Co Ltd | Solid separation apparatus |
| EP1097749A1 (en) * | 1999-11-05 | 2001-05-09 | Bayerische Motoren Werke Aktiengesellschaft | Cyclone air filter with electrostatic separator |
| FR2857274A1 (en) * | 2003-07-08 | 2005-01-14 | Liebherr Aerospace Gmbh | Water separator for air conditioning units in especially aircraft has separating chamber located around housing for collecting of water deposited on inner wall of housing and running into separating sump |
| CN2920421Y (en) * | 2006-06-09 | 2007-07-11 | 翟煜东 | Longitudinal gap internal circulation cyclone separator |
| CN101125423A (en) * | 2006-08-14 | 2008-02-20 | 苏州宝时得电动工具有限公司 | Hand-held electric tool |
| JP2013049115A (en) * | 2011-08-31 | 2013-03-14 | Makita Corp | Filtering device |
| WO2015033414A1 (en) * | 2013-09-05 | 2015-03-12 | ボルボ ラストバグナー アクチエボラグ | Gas-liquid separation device |
| EP2946887A1 (en) * | 2014-05-20 | 2015-11-25 | Black & Decker Inc. | Particle separation assembly for power tool |
| JP2016007680A (en) * | 2014-06-25 | 2016-01-18 | 日立工機株式会社 | Electric tool |
| CN104772704A (en) * | 2015-04-22 | 2015-07-15 | 南通大富士木工机械制造有限公司 | Cyclone grinding dust collection table |
| CN204546301U (en) * | 2015-04-22 | 2015-08-12 | 南通大富士木工机械制造有限公司 | Whirlwind polishing dust-collecting platform |
| CN206140259U (en) * | 2016-08-15 | 2017-05-03 | 苏州宝时得电动工具有限公司 | Purify mechanism and electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107756203A (en) | 2018-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7691164B2 (en) | Suction device | |
| US8698362B2 (en) | Electric power tool with an electric motor | |
| US9821433B2 (en) | Particle separation assembly for power tool | |
| CN105307821B (en) | Electric tool | |
| US20200230723A1 (en) | Blower for circular saw | |
| US8435096B2 (en) | Dust-proof structure for machine tools | |
| CA2611141C (en) | Centrifugal channel impeller with enlarged vanes | |
| US20070056759A1 (en) | Handheld power tool | |
| US20050230134A1 (en) | Power tool | |
| RU2508977C2 (en) | Processing machine driven by motor | |
| JP2006507135A (en) | Hand-held machine tool with dust box | |
| EP1065028B1 (en) | A drive spindle | |
| US7412961B2 (en) | Intake device | |
| CN107756203B (en) | Purifying mechanism and electric tool | |
| WO2015025498A1 (en) | Blower | |
| WO2017047046A1 (en) | Temperature conditioning unit, temperature conditioning system, and vehicle | |
| JP2012210691A (en) | Dust collecting adapter and power tool provided with dust collecting adapter | |
| US20200099275A1 (en) | Air Pre-Cleaning Assembly and Electric Tool having Same | |
| CN108312018B (en) | Hand-held electric tool | |
| CN206140259U (en) | Purify mechanism and electric tool | |
| CN116292421A (en) | Cooling air guide at electric hair dryer | |
| KR100808205B1 (en) | Motor assembly for vacuum cleaner | |
| JP2006315121A (en) | Power tool | |
| CN110962016B (en) | Angle grinder | |
| JP2000117634A (en) | Chip dust treatment structure for power tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |