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CN1065466C - Hand electric tool with dust collecting device - Google Patents

Hand electric tool with dust collecting device Download PDF

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Publication number
CN1065466C
CN1065466C CN96112160A CN96112160A CN1065466C CN 1065466 C CN1065466 C CN 1065466C CN 96112160 A CN96112160 A CN 96112160A CN 96112160 A CN96112160 A CN 96112160A CN 1065466 C CN1065466 C CN 1065466C
Authority
CN
China
Prior art keywords
air
pipe box
out pipe
valve
connector
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.)
Expired - Fee Related
Application number
CN96112160A
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Chinese (zh)
Other versions
CN1151343A (en
Inventor
K·沃斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN1151343A publication Critical patent/CN1151343A/en
Application granted granted Critical
Publication of CN1065466C publication Critical patent/CN1065466C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • A47L9/1454—Self-sealing closures, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • 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
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

A hand machine tool having an extraction nozzle (22), and a dust bag (28) or filtering bag, the opening (30) of which detachably encompasses the extraction nozzle (22), is protected against swarf and dust escaping from the dust bag into the interior of the fan chamber by nozzle (22) having at its free end a valve, which closes the extraction nozzle (22) as soon as the motor of the hand machine tool is switched off. The valve opens the nozzle (22) when the motor is switched back on. The valve is formed by a fitting piece (26) which carries the dust bag. In the absence of air flow, a thin-walled end region (40) of the fitting piece (26) collapses and folds downwards under the effect of gravity.

Description

具有吸尘装置的手持电动工具Hand-held electric tools with dust extraction device

本发明涉及一种带有尘袋或过滤漏斗以及与手持电动工具相连的连接件以承接尘袋或过滤漏斗的手持电动工具。The invention relates to a hand-held electric tool with a dust bag or filter funnel and a connecting piece connected with the hand-held electric tool to receive the dust bag or filter funnel.

DE-GM 9316626公开了一种具有吸尘装置的手持电动工具，其尘袋或过滤漏斗可以牢靠密封地接在手持电动工具的进风管套上，进风管套或风机室不能密封可能倒流的尘屑，手持电动工具带着与其相连的充满了的尘袋移动时，尘土和切屑就会进入进风管套或风机室内。再度开机时可能在风机室内卡死风机并使电机停机，导致烧毁电机绕组，损坏手持电动工具或工作面。DE-GM 9316626 discloses a hand-held electric tool with a dust suction device. The dust bag or filter funnel can be securely and sealedly connected to the air inlet pipe sleeve of the hand-held electric tool. When the hand-held power tool is moved with the full dust bag connected to it, the dust and chips will enter the air inlet pipe sleeve or fan chamber. When starting up again, the fan may be stuck in the fan chamber and the motor will be stopped, resulting in burning of the motor windings and damage to hand-held electric tools or working surfaces.

另外，还存在这样的危害，手持电动工具停车后，尘屑会存留于出风管套处，如取下尘袋，再开机时会被抛向四周环境。In addition, there is also such a danger that after the hand-held electric tool is stopped, dust will remain in the air outlet pipe sleeve. If the dust bag is removed, it will be thrown to the surrounding environment when it is turned on again.

本发明的目的在于提供一种具有吸尘装置的手持电动工具，其具有结构简单和工作效率高的连接件，在空气流停止时可防止尘屑的泄漏。The object of the present invention is to provide a hand-held electric tool with a dust suction device, which has a simple structure and a high-efficiency connecting member, and can prevent the leakage of dust when the air flow is stopped.

根据本发明，提供一种具有装尘袋或过滤袋的出风管套的手持电动工具，尘袋口可拆地套在出风管套上，其特征是，出风管套的自由端有阀门，只要吸尘工作一旦停止即关闭出风管套，只要吸尘工作一开始就打开出风管套。According to the present invention, there is provided a hand-held electric tool with an air outlet pipe cover containing a dust bag or a filter bag. The mouth of the dust bag is detachably set on the air outlet pipe cover. Valve, as soon as the dust suction work stops, the air outlet pipe cover will be closed, and as long as the dust suction work starts, the air outlet pipe cover will be opened.

根据本发明，还提供一种连接到手持电动工具出风管套上的并用于接纳尘袋的连接件，其特征为，在开口端有阀，由出风气流打开出风管套，无出风气流时关闭出风管套。According to the present invention, there is also provided a connecting piece connected to the air outlet pipe cover of the hand-held electric tool and used for receiving the dust bag, which is characterized in that there is a valve at the opening end, and the air outlet pipe cover is opened by the air outlet airflow, and there is no outlet. Close the outlet duct cover when the wind is blowing.

具有上述特征的本发明手持电动工具或承接过滤袋和尘袋的连接件的优点为，风机停车，即马达停机时，自动封闭手持电动工具的出风管套，封闭风机室，尘屑不能逆着尘的方向运动而进入风机室内，不装尘袋，再开机时也不会向四周抛出尘屑。The advantage of the hand-held electric tool or the connecting piece for receiving the filter bag and the dust bag of the present invention with the above-mentioned characteristics is that when the fan stops, that is, when the motor stops, the air outlet pipe sleeve of the hand-held electric tool is automatically closed, the fan chamber is closed, and the dust cannot be reversed. The dust moves in the direction of the dust and enters the fan room. There is no dust bag, and it will not throw dust around when it is turned on again.

只要尘袋和连接件一同与加工件脱离，连接件即封闭其入口，因此转移尘袋时没有尘屑进入的危险。As soon as the dust bag is separated from the workpiece together with the connecting part, the connecting part closes its inlet, so there is no risk of dust entering when transferring the dust bag.

下面参照附图进一步描述本发明的实施例。Embodiments of the present invention will be further described below with reference to the accompanying drawings.

图1为具有尘袋的本发明手持电动工具的纵断面图，图2为图1尘袋部位的放大断面图，图3为图2电机停机时的视图，图4为本发明连接件的透视图。Fig. 1 is a longitudinal sectional view of the hand-held electric tool of the present invention with a dust bag, Fig. 2 is an enlarged sectional view of the dust bag in Fig. 1, Fig. 3 is a view when the motor of Fig. 2 is stopped, and Fig. 4 is a perspective view of the connector of the present invention picture.

图1中手持电动工具10包括带有手柄12的机壳11，其手柄12装有通断电的开关钮13，其尾部引出电源线15。The hand-held electric tool 10 in FIG. 1 includes a casing 11 with a handle 12, the handle 12 is equipped with a switch button 13 for turning on and off the power, and a power cord 15 is drawn out from its tail.

手持电动工具10的下端装有带吸尘孔16的砂轮盘14，由没有详细画出的电机旋转驱动其砂轮盘14。砂轮盘14上方、手持电动工具机壳11下部的风机室20内有风机18，它由上述电机(未示出)驱动，电机起动后，把空气经出风管套22从风机室20中鼓出，从而在砂轮盘14下而形成负压，撕裂工件上的废屑。箭头组36示出了气流或吸出物运动的方向。The lower end of the hand-held power tool 10 is equipped with a grinding wheel disc 14 with a dust suction hole 16, and its grinding wheel disc 14 is driven by a motor that is not shown in detail. There is a fan 18 in the fan chamber 20 above the grinding wheel disc 14 and at the bottom of the hand-held electric tool casing 11, which is driven by the above-mentioned motor (not shown). out, thereby forming a negative pressure under the grinding wheel disc 14, tearing the waste on the workpiece. Arrow set 36 shows the direction of airflow or aspirate movement.

出风管套22末端为出口24，通过流出口吸出物排出壳体11并与连接件26搭接，连接件26上有尘袋28，其尘袋28通过其袋口30防脱离地套接连接件26，朝向手柄12的尘袋28的上区域带有搭连板32，可插入支架框34，而支架框34可推移地装于机壳11手柄12的区域。The end of the outlet pipe sleeve 22 is an outlet 24, through which the aspirated matter is discharged out of the housing 11 and overlapped with the connecting piece 26. There is a dust bag 28 on the connecting piece 26, and the dust bag 28 is socketed through its bag opening 30 to prevent detachment The connecting piece 26 has a connecting plate 32 facing the upper area of the dust bag 28 of the handle 12, which can be inserted into the support frame 34, and the support frame 34 is movably installed in the area of the handle 12 of the casing 11.

图2把出风管套22区域进行了放大，连接件用力套连在该区域，连接件26有一如图中剖面线所示的厚前部38，壁厚2-4mm。Fig. 2 enlarges the region of the air outlet pipe cover 22, and the connecting piece is firmly sleeved in this region. The connecting piece 26 has a thick front portion 38 as shown by the cross-hatching line in the figure, and the wall thickness is 2-4mm.

接着连接件26的第一部分38的是第二部分40，其内外径向开口部逐渐加大，壁厚0．2mm。Next to the first part 38 of the connector 26 is a second part 40 with progressively larger inner and outer radial openings and a wall thickness of 0.2 mm.

排出的气流由鼓气作用呈管形对准出风管套22的轴线流过连接件26的后部分40。The exhausted air flows through the rear portion 40 of the connecting piece 26 in a tubular shape aligned with the axis of the air outlet sleeve 22 by the blowing action.

图3与图2相对，电机断电，风机18停止工作，故无气流通过出风管套22及连接26，由于没有排气气流和鼓气效应，连接件26的后薄壁部分0瘪缩，并在重力作用下下垂，从而像阀瓣一样封住连接件26和出风管套22，这样尘屑便不能经连接件26从尘袋28内出来进入出风管套22后进入风机室20，免除了卡死风机18的隐患。Figure 3 is opposite to Figure 2, the motor is powered off, the fan 18 stops working, so no air flow passes through the outlet pipe sleeve 22 and the connection 26, because there is no exhaust air flow and air blowing effect, the rear thin-walled part 0 of the connection piece 26 shrinks , and droop under the action of gravity, so as to seal the connecting piece 26 and the air outlet pipe cover 22 like a valve disc, so that the dust cannot come out of the dust bag 28 through the connecting piece 26, enter the air outlet pipe cover 22 and then enter the fan room 20. The hidden danger of blower fan 18 being stuck is avoided.

特别在移动手持电动工具，在关机但有振动的情况下，确保了尘袋28中的尘屑不会出来进入手持电动工具的内部。Especially in the mobile hand-held electric tool, when the machine is turned off but there is vibration, it is ensured that the dust in the dust bag 28 will not come out and enter the interior of the hand-held electric tool.

连接件26前部有一套环42，它与袋口30套接并防止尘袋28脱落而卡紧。There is a collar 42 at the front of the connector 26, which is socketed with the pocket opening 30 and prevents the dust bag 28 from coming off and clamping.

图4为连接件26的透视图，由图可见，厚壁的前部分38具有与出风管套22吻合的印圆柱形，它向后到后部分40过渡为圆柱形。后部分40嗽叭筒形向开口部加大，以减慢流过的带尘气流，并防止细尘流出尘袋28。FIG. 4 is a perspective view of the connector 26. It can be seen from the figure that the thick-walled front portion 38 has a cylindrical shape matching the air outlet sleeve 22, and it transitions from the rear to the rear portion 40 into a cylindrical shape. The rear part 40 has a trumpet shape and enlarges toward the opening, so as to slow down the dusty airflow passing through and prevent the fine dust from flowing out of the dust bag 28 .

连接件26的后部分40形成一个弯软管道，在没有排出气流时，没有鼓气效应瘪缩下垂，起阀瓣作用。The rear part 40 of the connecting piece 26 forms a bent flexible pipe, and when there is no exhaust air flow, it does not collapse and sag due to the blowing effect, and acts as a valve flap.

下垂的位置和程度可由连接件长度与壁厚的比例决定。The location and degree of sagging can be determined by the ratio of the length of the connector to the thickness of the wall.

尘袋底部有一可撕封口以摘除尘袋。There is a tear-off seal at the bottom of the dust bag to remove the dust bag.

Claims (11)

1. the electric hand tool (10) that has the air-out pipe box (22) of dress dirt bag (28) or filter bag, dirt sack (30) detachably is enclosed within on the air-out pipe box (22), it is characterized in that, the free end of air-out pipe box (22) has valve (26), as long as in a single day dust suction work stop promptly to close air-out pipe box (22), as long as air-out pipe box (22) is opened in dust suction work at the very start.
2. electric hand tool as claimed in claim 1 is characterized by, with diaphragm valve or shutter-type valve as valve (26).
3. electric hand tool as claimed in claim 1 is characterized by, and as valve (26), can be under himself weight effect flat contracts saggingly with thin walled hose, and no air-out air-flow is an air blowing process when interrupting, and sealing air-out pipe box (22) does not allow dirt consider to be worth doing to pass through.
4. electric hand tool as claimed in claim 3 is characterized by, and valve (26) is the hose type valve especially, make the connector anticreep and land and be connected on the air-out pipe box (22), and slip-off preventing ground has dirt bag (28).
5. electric hand tool as claimed in claim 4 is characterized by, and connector (26) flexibly is enclosed within on the air-out pipe box (22) securely with the inwall rubbing action, and especially prevents to pin dirt bag (28) with its outer wall annular protrusion by projection with coming off.
6. as the described electric hand tool of one of claim 1 to 5, it is characterized in that valve (26) is opened by dust-absorbing airflow, does not close when having air-flow.
7. as claim 1 preamble, be connected to connector (26) on the electric hand tool air-out pipe box (22) and that be used to admit dirt bag (28), it is characterized by, valve (40) is arranged at openend, open air-out pipe box (22) by the air-out air-flow, close air-out pipe box (22) during no air-out air-flow.
8. connector as claimed in claim 7, it is characterized by its forward part (38) wall thickness about 2 to 4mm, and cross section and air-out pipe box (22) coincide, particularly make ellipse towards air-out pipe box (22), and its rear section (40) make the curved flexible pipe of circular cross-section, and wall thickness is less than 1mm.
9. connector as claimed in claim 8 is characterized by, and rear section (40) wall thickness 0.1 of connector (26) is to 0.5mm, and diameter is the loud-speaker tubular towards opening direction and strengthens.
10. as the connector of one of above claim, it is characterized in that the material selection rubber plastic.
11. as one of above claim described connector, it is characterized by, between rear section (40) and the forward part (38) bending part arranged.
CN96112160A 1995-08-19 1996-08-19 Hand electric tool with dust collecting device Expired - Fee Related CN1065466C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19530542.6 1995-08-19
DE19530542A DE19530542A1 (en) 1995-08-19 1995-08-19 Hand machine tool with dust extraction device

Publications (2)

Publication Number Publication Date
CN1151343A CN1151343A (en) 1997-06-11
CN1065466C true CN1065466C (en) 2001-05-09

Family

ID=7769890

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96112160A Expired - Fee Related CN1065466C (en) 1995-08-19 1996-08-19 Hand electric tool with dust collecting device

Country Status (5)

Country Link
CN (1) CN1065466C (en)
CH (1) CH691283A5 (en)
DE (1) DE19530542A1 (en)
GB (1) GB2304407B (en)
IT (1) IT1283790B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101096097B (en) * 2006-06-28 2013-12-25 罗伯特·博世有限公司 Dust collection device for handheld electrical tool
CN104227140A (en) * 2014-08-29 2014-12-24 常州武进长城工具有限公司 Dust suction file

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JPH11138435A (en) * 1997-11-07 1999-05-25 Makita Corp Attachment structure for dust collecting bag of power tool having dust collector
DE19941620A1 (en) * 1999-09-01 2001-03-08 Bosch Gmbh Robert Hand tool
DE10041906B4 (en) * 2000-08-25 2011-06-09 Hilti Aktiengesellschaft Grinder with dust extraction
DE10047543A1 (en) 2000-09-22 2002-04-11 Bosch Gmbh Robert Abrasives and abrasives for an electrical grinding tool and electrical grinding tool
DK1428621T3 (en) 2002-12-09 2005-10-24 Black & Decker Inc Planer
DK1428615T5 (en) 2002-12-09 2007-11-12 Black & Decker Inc Planer
GB0228656D0 (en) 2002-12-09 2003-01-15 Black & Decker Inc Planer
DK1428616T3 (en) 2002-12-09 2007-10-08 Black & Decker Inc Planer
GB0228654D0 (en) 2002-12-09 2003-01-15 Black & Decker Inc Planer
GB0228657D0 (en) 2002-12-09 2003-01-15 Black & Decker Inc Planer
US8087977B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder
JP4747850B2 (en) 2006-01-20 2011-08-17 日立工機株式会社 Dust collector
DE102007036783A1 (en) * 2007-08-03 2009-02-05 Robert Bosch Gmbh Hand tool with a dust extraction device
CN102615569B (en) * 2012-04-28 2014-03-26 东山电器（珠海）有限公司 High-speed grinding machine
CN103521006A (en) * 2013-10-25 2014-01-22 苏州宇洋环保设备制造有限公司 Spraying-blowing device of bag-type dust remover used for isolating corrosive dust
CN103962621A (en) * 2014-05-09 2014-08-06 陈婷 Planer tool limiter of electric planer
CN105710103A (en) * 2016-01-27 2016-06-29 太仓权阡机械自动化有限公司 Industrial dust remover
US10818450B2 (en) 2017-06-14 2020-10-27 Black & Decker Inc. Paddle switch
CN110313699B (en) * 2019-07-04 2025-01-10 深圳市微笑地球控股有限公司 Water bottle bag
CN112720160A (en) * 2020-12-28 2021-04-30 南京顺遂姐商贸有限公司 Polishing equipment for plastic production
CN114274049B (en) * 2022-01-10 2023-03-21 常州赛迪工具有限公司 Electric tool dust collection structure and handheld electric sander with same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101096097B (en) * 2006-06-28 2013-12-25 罗伯特·博世有限公司 Dust collection device for handheld electrical tool
CN104227140A (en) * 2014-08-29 2014-12-24 常州武进长城工具有限公司 Dust suction file

Also Published As

Publication number Publication date
CH691283A5 (en) 2001-06-29
GB2304407A (en) 1997-03-19
GB9616898D0 (en) 1996-09-25
DE19530542A1 (en) 1997-02-20
ITMI961740A0 (en) 1996-08-09
ITMI961740A1 (en) 1998-02-09
GB2304407B (en) 1997-09-17
CN1151343A (en) 1997-06-11
IT1283790B1 (en) 1998-04-30

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