CN102372196A - Uniform-speed wire-returning wire winder for dust collector - Google Patents
Uniform-speed wire-returning wire winder for dust collector Download PDFInfo
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- CN102372196A CN102372196A CN2010102551157A CN201010255115A CN102372196A CN 102372196 A CN102372196 A CN 102372196A CN 2010102551157 A CN2010102551157 A CN 2010102551157A CN 201010255115 A CN201010255115 A CN 201010255115A CN 102372196 A CN102372196 A CN 102372196A
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- wheel disc
- stopping
- spring
- wire
- lateral wall
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Abstract
The invention discloses a uniform-speed wire-returning wire winder for a dust collector. The uniform-speed wire-returning wire winder comprises a supporting plate provided with a cambered surface guard plate, an inside wheel disc, an outside wheel disc, a wire winding wheel which connects the inside wheel disc and the outside wheel disc into a whole, a coil spring box arranged in a circular groove of the outside wheel disc, and a coil spring arranged in the coil spring box, wherein one side, which is close to the supporting plate, of the guard plate inwards bends to form a curved side surface; and the inside wheel disc is provided with a braking assembly which generates outward displacement along with the increase of centrifugal force so as to fulfill the aim of uniform-speed wire returning. The outer edge of the inside wheel disc of the uniform-speed wire-returning wire winder is provided with the braking assembly which generates outward displacement along with the increase of the centrifugal force; and when the wire returning speed is overhigh, a brake pad of the braking assembly moves outwards and rubs the curved side surface of the guard plate to generate frictional resistance, so that the wire returning speed is reduced, the wire winder can return wires at a uniform speed, and a series of problems which are triggered by overhigh wire returning speed are prevented.
Description
Technical field
The invention belongs to the power lead wind of dust collecting fan; Particularly relate to a kind of on the inboard wheel disc of winder, the setting and increase brake assemblies to outer displacement with centnifugal force; The bent side friction of brake assemblies and backplate produces resistance, prevents the at the uniform velocity loop line winder of winder loop line excessive velocities.
Background technology
Dust collecting fan is a kind of sanitation and hygiene electrical installation, is used for removing the dust in ground, carpet, wall, furniture, clothing and various slits.In general; Dust collecting fan mainly comprises aspirator and suction line; With electrical motor and blower fan is that the aspirator that dominant shape becomes is arranged in the body; Suction line comprises suction nozzle and aspirate tube, and the air suctiton inlet of the oriented under shed of suction nozzle and telescopic pipe and flexible pipe through aspirate tube communicate with the ventilation inlet of body inner blower.
During the dust collecting fan running, the impeller high speed revolution of motor drives blower fan removes dust collecting fan in-to-in air exhaustion, forms instantaneous vacuum in the inside of dust collecting fan, and forms a quite high Negative Pressure Difference between the ambient atmosphere.Under the effect of this Negative Pressure Difference, near the dust the suction nozzle sucks in the dust bucket in the body through air suctiton inlet together with air.The air that contains dust after filtering, is discharged to the dust collecting fan outside from air extractor duct again in the dust bucket of body.Like this, just reach the effect of dusting, clean floor.The suction rate of dust collecting fan is divided into a plurality of retainings that control, and adapts to the scope of operation of different cleaning objects such as ground, bed surface, carpet, sofa, corner, so that aspirate dust everywhere better.
Profile classification according to dust collecting fan can be divided into vertical type dust collector, horizontal (pot type) dust collecting fan and portable dust collector etc.
The horizontal dust collector general structure comprises that mainly suction nozzle, the dust suction that forms air path system just managed by the motor of dust collector that imports electric current generation suction, hose, filtering installation, the dust collect plant of gathering indraft.The body top of horizontal dust collector is provided with the suction pipe interface that connects hose, and After-Body is provided with the air discharge grille of discharging pure air; Be respectively arranged with source switch button, power adjustment button and coil winder press key on the body.
Because the horizontal dust collector body is short and small, power lead inconvenience also can't hang on the fuselage.For keeping the attractive in appearance and complete of body profile; Winder with wind spring structure is set in vacuum cleaner bottom usually; And be provided with the button that control reeler rotates at body surface, and spaced winding has power lead in the winder wheel disc, and power-line plug is retained in the rear portion at the drain pan back side; Supply to pull out attaching plug and power lead during use, tighten wind spring; Use the elastic force effect recover power lead of back at wind spring.
Fig. 1 is prior art horizontal dust collector body drain pan and winder structure block diagram; Fig. 2 is the structural perspective of prior art winder; Fig. 3 is the supporting plate structure block diagram of prior art winder and one of which side.To shown in Figure 3, both sides, body base 1 rear portion are provided with to be convenient to dust collecting fan and to move caster wheel 2 like Fig. 1.Dividing plate 3 on the base 1 is anterior to form the control of dust spaces, but is provided with the dust collect plant of installation or removal in the control of dust space, and dividing plate 3 rear portions are formed with the back space that air is discharged through filter after electric components such as winder 4, dust sucting motor are set and the dedusting.The control of dust space of front part of a body and the dividing plate 3 between the back space are provided with the motor ventilation inlet (not shown) of filtering installation.
The recovery of power lead and apparatus for displaying when winder 4 is the dust collecting fan operation, winder 4 comprise the inboard wheel disc 9 that is installed on the stay bearing plate 8, outside wheel disc 10 and the reel 7 that inboard wheel disc 9 and outside wheel disc 10 are combined as a whole.During take-up, the power lead that an end is connected with attaching plug 6 is wrapped on the reel 7, is wrapped in power lead on the reel 7 between inboard wheel disc 9 and outside wheel disc 10, therefore can not deviate from.Stay bearing plate 8 central authorities of reel 7 and winder one side setting are formed with the concentric circles shaft hole 12 that enwinding spring axis 11 has been installed; One of them end of stay bearing plate 8 criss crosss of cross shape shape is formed with plug position-limited rack 13, and stay bearing plate 8 criss crosss wherein another end are provided with loop line button 14.The outer rim of stay bearing plate 8 is provided with the cambered surface backplate 18 of two inboard wheel discs of protection and outside wheel disc, and it is terminal that the two ends of backplate 18 are connected respectively to stay bearing plate 8 criss crosss, and inboard wheel disc 9 directions of a side direction of backplate 18 nearly stay bearing plates are bent to form bent side 19.
The lateral surface central authorities of outside wheel disc 10 are formed with the circular groove concentric with enwinding spring axis; The coil spring box 16 of captiveing joint with enwinding spring axis 11 is installed in the circular groove; Wind spring (not shown) dish is 16 li of coil spring boxs, and wind spring one end is connected with coil spring box 16, and the wind spring draw-in groove (not shown) of formation is connected on the other end and the enwinding spring axis 11; Drive reel 7 rotations when pulling out power lead, wind spring is tightened up; During take-up, press loop line button 14, wind spring utilizes self elastic force recovery, then makes reel 7 loosen contrarotation, power lead is twined regain.Plug position-limited rack 13 stops attaching plug 6, and reel 7 take-ups are stopped.
But there is following problem in the winder of aforesaid prior art dust collecting fan:
When pressing the loop line button, power lead is regained in the elastic force effect turning down of winder wind spring in coil spring box, because the elastic force of wind spring is bigger, spring is fully at all elastic energies of abrupt release.Speed was very fast when power lead was regained, and reached as high as 6m/s, and can't reduce recovery speed.Like this, cause winder clot or damage easily, influence the service life of winder.Power lead also is easy to because of twining confusion, the inhomogeneous stuck phenomenon that produces in the process of unrolling at a high speed simultaneously, and is especially obvious when power lead length is long, causes the power lead revolution not smooth.Thereby reduced the convenience degree that the user uses, consequent complaint also has a lot.
Summary of the invention
The present invention is exactly in order to solve in the prior art; The problem that the loop line excessive velocities of winder is brought; And provide a kind of on the inboard wheel disc of winder, the setting to increase brake assemblies to outer displacement with centnifugal force; The bent side friction of brake assemblies and backplate produces resistance, prevents the at the uniform velocity loop line winder of winder loop line excessive velocities.
The present invention realizes by following technical scheme:
A kind of at the uniform velocity loop line winder of dust collecting fan; Comprise the stay bearing plate that is provided with the cambered surface backplate, inboard wheel disc, outside wheel disc and the reel that inboard wheel disc and outside wheel disc are combined as a whole; And the wind spring that is arranged on setting in interior coil spring box of outside wheel disc circular groove and the coil spring box; Be bent to form bent side in the side direction of backplate near stay bearing plate, inboard wheel disc is provided with centnifugal force and increases the brake assemblies to outer displacement.
Described brake assemblies comprises fan-shaped madial wall and the lateral wall that be that is connected on the inboard wheel disc; Being arranged in the middle of madial wall and the lateral wall can the inside and outside horse of stopping that moves, and is fixedly connected on the spring of stopping sheet and madial wall, lateral wall and stopping and be provided with between the horse of the horse outer rim of stopping.
Described madial wall is the identical concentric fan-shaped plan of size with lateral wall, and integrally formed with inboard wheel disc, midfeather one fixed gap of madial wall and lateral wall.
The described horse outside of stopping is fan-shaped, inserts the middle space of madial wall and lateral wall; Fan-shaped dual-side rear portion is parallel, and the inner edge of the horse of stopping is the outstanding protrusion that forms in both sides to the left and right, and inside sidewall and lateral wall direction are provided with spring bearing on two protrusions.
The inner edge left and right symmetrically of described madial wall and lateral wall is provided with the spring perch that madial wall and lateral wall are combined as a whole; Spring one end is wrapped on the spring bearing, and the other end is connected with spring perch.
Described spring perch is the cylindrical shape of a boring and an end opening, and is integrally formed with madial wall and lateral wall; Spring inserts and contacts with the spring perch bottom from an end of spring perch opening.
The described sheet of stopping is the rubber sheet of stopping, and is and the arc of inboard wheel disc concentric with radius, and the sheet outer rim of stopping and inboard wheel disc outer rim are formed a circle; The middle groove that connects the horse of stopping that is formed with of the sheet inner edge of stopping, the sheet inner edge both sides of stopping contact with lateral wall with madial wall respectively.
Advantage and good effect that the present invention has are:
At the uniform velocity loop line winder of the present invention increases the brake assemblies to outer displacement in the outer rim setting of the inboard wheel disc of winder with centnifugal force.When the loop line excessive velocities, the sheet of stopping of brake assemblies outwards moves, and rubs with the bent side of backplate, produce friction drag, thereby reduction loop line speed makes at the uniform velocity loop line of winder, prevents winder loop line excessive velocities and causes a series of problem.
Description of drawings
Fig. 1 is prior art horizontal dust collector body drain pan and winder structure block diagram;
Fig. 2 is the structural perspective of prior art winder;
Fig. 3 is the supporting plate structure block diagram of prior art winder and one of which side;
Fig. 4 is the structural perspective of winder of the present invention;
Fig. 5 is the front view of winder stay bearing plate of the present invention;
Fig. 6 is the front view that winder of the present invention removes stay bearing plate;
Fig. 7 is a C portion enlarged drawing among Fig. 6;
Fig. 8 is the decomposition chart of the stop sheet and the horse of stopping of the present invention;
Fig. 9 is an A-A cutaway view among Fig. 6;
Figure 10 is a D portion enlarged drawing among Fig. 9;
Figure 11 is a B-B cutaway view among Fig. 6;
Figure 12 is an E portion enlarged drawing among Figure 11;
Figure 13 is the structural representation of the stop sheet and the bent side friction of backplate of brake assemblies of the present invention.
Major part nomenclature in the accompanying drawing:
1. base 2. castors 3. dividing plates
4. winder 5. power leads 6. attaching plugs
7. reel 8. stay bearing plates 9. inboard wheel discs
10. outside wheel disc 11. enwinding spring axis 12. shaft holes
13. plug position-limited rack 14. loop line buttons 15. grooves
16. coil spring box 17. protrusions 18. backplates
The horse 19. bent side 20. brake assemblies 21. are stopped
25. spring bearing 26. madial walls 27. lateral walls
The specific embodiment
Followingly the present invention is carried out detailed explanation with reference to accompanying drawing and embodiment.The parts identical with prior art have used identical symbol in the accompanying drawing of the present invention.
Fig. 4 is the structural perspective of winder of the present invention.As shown in Figure 4, at the uniform velocity loop line winder of the present invention comprises inboard wheel disc 9, outside wheel disc 10 that is installed on the stay bearing plate 8 and the reel 7 that inboard wheel disc 9 and outside wheel disc 10 are combined as a whole.The power lead 5 that one end is connected with attaching plug 6 is wrapped on the reel 7, is wrapped in power lead 5 on the reel 7 between inboard wheel disc 9 and outside wheel disc 10, therefore can not deviate from.Stay bearing plate 8 central authorities of reel 7 and winder one side setting are formed with the concentric circles shaft hole that enwinding spring axis 11 has been installed; One of them end of stay bearing plate 8 criss crosss of cross shape is formed with plug position-limited rack 13, and stay bearing plate 8 criss crosss wherein another end are provided with loop line button 14.The outer rim of stay bearing plate 8 is provided with the cambered surface backplate 18 of two inboard wheel discs of protection and outside wheel disc.The lateral surface central authorities of outside wheel disc 10 are formed with the circular groove concentric with enwinding spring axis; The coil spring box 16 of captiveing joint with enwinding spring axis 11 is installed in the circular groove; The wind spring dish is in coil spring box 16, and wind spring one end is connected with coil spring box 16, and the wind spring draw-in groove that forms on the other end and the enwinding spring axis 11 is connected.
Drive reel 7 rotations when pulling out power lead 5, wind spring is tightened up; During take-up, press loop line button 14, wind spring utilizes self elastic force recovery, then makes reel 7 loosen contrarotation, power lead is twined regain.Stopped by plug position-limited rack 13 that until attaching plug 6 take-up stops.
Fig. 5 is the front view of winder stay bearing plate of the present invention.As shown in Figure 5, stay bearing plate 8 is the cross shape shape, and the outer rim of stay bearing plate 8 is provided with two cambered surface backplates 18.It is terminal that the two ends of backplate 18 are connected respectively to stay bearing plate 8 criss crosss, is bent to form bent side 19 in the side direction of backplate 18 near stay bearing plate.
Fig. 6 is the front elevation that winder of the present invention removes stay bearing plate; Fig. 7 is a C portion enlarged drawing among Fig. 6; Fig. 8 be the present invention stop sheet with stop the decomposition chart of horse; Fig. 9 is an A-A cutaway view among Fig. 6; Figure 10 is a D portion enlarged drawing among Fig. 9; Figure 11 is a B-B cutaway view among Fig. 6; Figure 12 is an E portion enlarged drawing among Figure 11.
To shown in Figure 12, inboard wheel disc 9 is a concentric circles with outside wheel disc 10, and inboard wheel disc is more smaller than the diameter of outside wheel disc like Fig. 6.Brake assemblies 20 is arranged on the outward flange of inboard wheel disc, and brake assemblies 20 comprises madial wall 26, lateral wall 27, be arranged on the horse 21 of stopping in the middle of madial wall and the lateral wall, be fixedly connected on stop sheet 22 and madial wall, lateral wall and and the spring 24 stopping and be provided with between the horse of the horse outer rim of stopping.
As shown in Figure 8, horse 21 outsides of stopping are fan-shaped, the space in the middle of insertion madial wall 26 and the lateral wall 27; The stop inboard of horse is stretched out in the middle of madial wall and the lateral wall and is extended a segment distance; Fan-shaped dual-side rear portion is parallel; Thereby make the inboard rectangular of the horse of stopping, the inner edge of rectangle is two side-prominent to the left and right, forms protrusion 17; To the horse lateral direction of stopping, promptly inwardly sidewall and lateral wall direction are formed with outstanding spring bearing 25 on the protrusion.
The sheet 22 stopped adopts the big rubber of the friction coefficient sheet of stopping, and is fixed on the horse 21 of stopping through quadric injection mould, and the sheet 22 of stopping is and the arc of inboard wheel disc concentric with radius, when static, and circle of the common composition of the sheet outer rim of stopping and inboard wheel disc outer rim.Stopping is formed with the stop groove 15 of horse of captive joint in the middle of the sheet inner edge, and the sheet inner edge both sides of stopping contact with lateral wall 27 with madial wall 26 respectively.The sheet outer rim of the stopping ratio sheet inner edge of stopping is thick slightly, more wear-resisting.
When winder 4 was static, brake assemblies 20 received the constraint of spring 24 elastic force, and it stops sheet 22 outer rims and inboard wheel disc 9 outer rims on same circumference, and the sheet inner edge of stopping contacts with lateral wall 27 with madial wall 26.
Down in the face of the present invention at the uniform velocity the working process of loop line winder carry out detailed explanation.
When dust collecting fan used, after power lead 5 was drawn out, the wind spring in the coil spring box 16 was in the state of tightening up.Dust collecting fan work finishes, and when needing to regain power lead, presses loop line button 14, and wind spring utilizes self elastic force recovery, makes reel 7 contrarotations, power lead is twined regain.During reel 7 rotations, inboard wheel disc 9 together rotates with outside wheel disc 10 and reel, and the brake assemblies 20 on the inboard wheel disc is together rotation also.Quickening along with loop line speed; The centnifugal force that brake assemblies 20 receives is increasing, and when loop line speed reached certain critical value, the horse 21 of stopping will be above the elastic force of two springs 24 with the centnifugal force that the sheet 22 of stopping receives; Thereby outside displacement takes place in the horse 21 of stopping; The sheet outer rim of stopping is contacted with the bent side 19 of bracing frame 8 upper guard boards 18 and rub, produce friction drag, reduce loop line speed.When loop line speed is reduced to critical value when following, the horse 21 of stopping is little with the centnifugal force that the sheet 22 of stopping receives, and the horse of stopping moves inward under the effect of spring 24 elastic force with the sheet of stopping and resets, and friction drag disappears.Under the wind spring effect, loop line speed can be accelerated once more.Produce friction drag after loop line speed is accelerated once more again, so repeatedly, make the loop line speed of winder reach dynamic balance, thereby realize the at the uniform velocity loop line of winder.Because loop line speed is reduced to critical value when following, the horse 21 of stopping is little with the centnifugal force that the sheet 22 of stopping receives, and the horse of stopping moves inward under the effect of spring 24 elastic force with the sheet of stopping and resets, the friction drag disappearance, and therefore, winder can not stop operating because of resistance is excessive.
Claims (7)
1. the at the uniform velocity loop line winder of a dust collecting fan; Comprise the stay bearing plate (8) that is provided with cambered surface backplate (18), inboard wheel disc (9), outside wheel disc (10) and the reel (7) that inboard wheel disc and outside wheel disc are combined as a whole; And the wind spring that is arranged on setting in interior coil spring box (16) of outside wheel disc circular groove and the coil spring box; Be bent to form bent side (19) in the side direction of backplate (18) near stay bearing plate, it is characterized in that: inboard wheel disc (9) is provided with centnifugal force and increases the brake assemblies (20) to outer displacement.
2. the at the uniform velocity loop line winder of dust collecting fan according to claim 1; It is characterized in that: brake assemblies (20) comprises fan-shaped madial wall (26) and the lateral wall (27) that be that is connected on the inboard wheel disc; Being arranged in the middle of madial wall and the lateral wall can the inside and outside horse of stopping (21) that moves, and is fixedly connected on the sheet of stopping (22) and madial wall, the lateral wall of the horse outer rim of stopping and the spring (24) of stopping and being provided with between the horse.
3. the at the uniform velocity loop line winder of dust collecting fan according to claim 2; It is characterized in that: madial wall (26) is the identical concentric fan-shaped plan of size with lateral wall (27); And integrally formed with inboard wheel disc (9), midfeather one fixed gap of madial wall and lateral wall.
4. the at the uniform velocity loop line winder of dust collecting fan according to claim 2 is characterized in that: be fan-shaped outside the horse of stopping (21), insert the middle space of madial wall and lateral wall; Fan-shaped dual-side rear portion is parallel, and the inner edge of the horse of stopping is the outstanding protrusion (17) that forms in both sides to the left and right, and inside sidewall and lateral wall direction are provided with spring bearing (25) on two protrusions.
5. according to the at the uniform velocity loop line winder of claim 3 or 4 said dust collecting fans, it is characterized in that: the inner edge left and right symmetrically of madial wall (26) and lateral wall (27) is provided with the spring perch (23) that madial wall and lateral wall are combined as a whole; Spring (24) one ends are wrapped on the spring bearing (25), and the other end is connected with spring perch (23).
6. the at the uniform velocity loop line winder of dust collecting fan according to claim 5 is characterized in that: spring perch (23) is for the cylindrical shape of a boring and an end opening, and is integrally formed with madial wall (26) and lateral wall (27); Spring (24) inserts and contacts with the spring perch bottom from an end of spring perch (23) opening.
7. the at the uniform velocity loop line winder of dust collecting fan according to claim 2 is characterized in that: the sheet of stopping (22) is and the arc of inboard wheel disc (9) concentric with radius for the rubber sheet of stopping, and the sheet outer rim of stopping and inboard wheel disc outer rim are formed a circle; The middle groove (15) that connects the horse of stopping that is formed with of the sheet inner edge of stopping, the sheet inner edge both sides of stopping contact with lateral wall (27) with madial wall (26) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010255115.7A CN102372196B (en) | 2010-08-17 | 2010-08-17 | The uniform-speed wire-returning wire winder of dust collecting fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010255115.7A CN102372196B (en) | 2010-08-17 | 2010-08-17 | The uniform-speed wire-returning wire winder of dust collecting fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102372196A true CN102372196A (en) | 2012-03-14 |
| CN102372196B CN102372196B (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010255115.7A Expired - Fee Related CN102372196B (en) | 2010-08-17 | 2010-08-17 | The uniform-speed wire-returning wire winder of dust collecting fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN102372196B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750787A (en) * | 2012-12-30 | 2014-04-30 | 苏州欧圣电气工业有限公司 | Winding device for dust collector |
| CN104337462A (en) * | 2013-07-29 | 2015-02-11 | 苏州莱宝电器有限公司 | Winder for dust collector |
| CN106865363A (en) * | 2017-03-29 | 2017-06-20 | 广州市裘袋贸易有限公司 | A kind of Environmental-protection dust removal device |
| CN106938270A (en) * | 2017-03-29 | 2017-07-11 | 广州市裘袋贸易有限公司 | A kind of operable Environmental-protection dust removal device |
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| CN201056444Y (en) * | 2007-01-25 | 2008-05-07 | 陈剑 | Gas delivery machine automatically returning reel pipe back at low speed |
| CN101176634A (en) * | 2006-11-10 | 2008-05-14 | 乐金电子(天津)电器有限公司 | Braking structure of coil winder of suction sweeper |
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| FR2003517A1 (en) * | 1968-03-08 | 1969-11-07 | Owens Corning Fiberglass Corp | |
| JPH08268649A (en) * | 1995-03-31 | 1996-10-15 | Kaiwa Tec Kk | Oil fence winder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750787A (en) * | 2012-12-30 | 2014-04-30 | 苏州欧圣电气工业有限公司 | Winding device for dust collector |
| CN103750787B (en) * | 2012-12-30 | 2016-06-08 | 苏州欧圣电气工业有限公司 | A kind of Winder for vacuum cleaner |
| CN104337462A (en) * | 2013-07-29 | 2015-02-11 | 苏州莱宝电器有限公司 | Winder for dust collector |
| CN106865363A (en) * | 2017-03-29 | 2017-06-20 | 广州市裘袋贸易有限公司 | A kind of Environmental-protection dust removal device |
| CN106938270A (en) * | 2017-03-29 | 2017-07-11 | 广州市裘袋贸易有限公司 | A kind of operable Environmental-protection dust removal device |
| CN106865363B (en) * | 2017-03-29 | 2017-12-01 | 日照市中腾机械有限责任公司 | A kind of Environmental-protection dust removal device |
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|---|---|
| CN102372196B (en) | 2015-09-09 |
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Effective date of registration: 20160518 Address after: 210014 Yongfeng Road, Qinhuai District, Jiangsu, No. 28, No. Patentee after: Nanjing LG Panda Appliances Co., Ltd. Address before: 300402 Tianjin city Beichen District Xingdian Road Patentee before: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) |
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Granted publication date: 20150909 Termination date: 20170817 |
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