CN108852149B - Rechargeable silence dust extraction - Google Patents
Rechargeable silence dust extraction Download PDFInfo
- Publication number
- CN108852149B CN108852149B CN201810672330.3A CN201810672330A CN108852149B CN 108852149 B CN108852149 B CN 108852149B CN 201810672330 A CN201810672330 A CN 201810672330A CN 108852149 B CN108852149 B CN 108852149B
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- cup
- mop
- air inlet
- air outlet
- dust
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- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
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- 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
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The invention discloses a charging type silent dust collection device, which comprises a machine body, a dust collection motor and a charging battery pack for supplying power to the dust collection motor; the machine body is provided with a mop seat, a body air inlet pipe, a body air outlet and a dust cup clamped with the machine body, and the body air outlet is provided with noise reduction cotton; the dust cup comprises a cup body and a cup cover clamped with the cup body, a cup air inlet and a cup air outlet are formed in the cup body, a filter cylinder for separating the cup air inlet and the cup air outlet is arranged in the cup body, and a plurality of filter holes are formed in the filter cylinder; the body air inlet pipe, the cup air inlet, the cup air outlet, the dust collection motor air inlet end, the dust collection motor air outlet end and the body air outlet are communicated in sequence; the mop base is provided with a bottom inlet, a mop inner cavity and an upper connecting pipe which is connected with the body air inlet pipe in a clamping manner in sequence, the upper connecting pipe is communicated with the body air inlet pipe, and the mop base is provided with a main floor wheel. The invention has the beneficial effects that: can charge, it is convenient to use, need not external wire during the operation, and cleaning power is strong, the silence is effectual.
Description
Technical Field
The invention belongs to the technical field of dust collectors, and particularly relates to a charging type silent dust collection device.
Background
With the development of the times and the improvement of the living standard, dust collecting equipment, in particular household dust collectors, have been widely applied. A vacuum cleaner is an electric appliance that uses an electric motor (dust suction motor) to generate negative air pressure in a sealed housing to suck dust or garbage. The existing dust collector has the main function of recovering and cleaning dust and garbage on floors, carpets and the like at home. However, the conventional vacuum cleaner still has shortcomings in the aspects of convenience in operation, silencing effect and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a rechargeable silent dust collector which can be charged, is convenient to use, does not need an external wire during operation, and has strong cleaning capability and good silent effect.
A charging type silent dust collector comprises
The dust collection device comprises a machine body, a dust collection motor and a rechargeable battery pack for supplying power to the dust collection motor;
the machine body is provided with a mop seat, a body air inlet pipe, a body air outlet and a dust cup clamped with the machine body, and the body air outlet is provided with noise reduction cotton;
the dust cup comprises a cup body and a cup cover clamped with the cup body, a cup air inlet and a cup air outlet are formed in the cup body, a filter cylinder for separating the cup air inlet and the cup air outlet is arranged in the cup body, and a plurality of filter holes are formed in the filter cylinder;
the body air inlet pipe, the cup air inlet, the cup air outlet, the dust collection motor air inlet end, the dust collection motor air outlet end and the body air outlet are communicated in sequence;
the mop base is provided with a bottom inlet, a mop inner cavity and an upper connecting pipe which is connected with the body air inlet pipe in a clamping manner in sequence, the upper connecting pipe is communicated with the body air inlet pipe, and the mop base is provided with a main floor wheel.
When the invention is used, the main body is pushed to drive the main land wheel to roll on the ground, and the mop seat moves on the ground. The dust collection motor sucks air, the garbage on the ground enters the dust cup through the bottom inlet, the inner cavity of the mop, the upper connecting pipe, the body air inlet pipe and the cup air inlet along with the air flow, the garbage which cannot pass through the filter holes is isolated by the filter cartridge and is left in the dust cup, and the air flow is discharged outside through the air inlet end of the dust collection motor, the air exhaust end of the dust collection motor and the body air outlet. The cotton of making an uproar falls on the body air exit can effectively reduce the noise of airing exhaust, plays the silence effect. When the mop is not needed, the upper connecting pipe can be separated from the air inlet pipe of the mop body, and then the upper connecting pipe is connected with other dust suction pipes or dust suction structures for dust suction.
Preferably, the machine body is provided with an external flat suction pipe, the inlet end of the external flat suction pipe can be clamped and communicated with the air inlet pipe of the machine body, the machine body is provided with a temporary seat, and the external flat suction pipe is clamped and connected with the temporary seat. After the upper connecting pipe is separated from the air inlet pipe, the external flat suction pipe can be pulled down, connected to the air inlet pipe and then subjected to dust collection.
Preferably, the periphery of the bottom of the mop seat is provided with a rubber surrounding edge, the upper end of the rubber surrounding edge is fixed with the bottom of the mop seat, a gap is formed between the bottom of the mop seat and the ground, and the front end of the rubber surrounding edge is provided with an opening. The rubber surrounding edge is in contact with the ground, and the front end of the rubber surrounding edge is provided with the opening, so that a dust collection space can be effectively surrounded, the dust collection effect can be improved, and partial noise transmitted from the bottom inlet can be effectively isolated.
Preferably, an inner filtering cavity is arranged between the filter cylinder and the air outlet of the cup, an inner filtering sponge is arranged in the inner filtering cavity, and the inner filtering sponge is positioned in the dust cup. The inner filtering sponge can play a role in secondary filtering, so that the micro-dust in the airflow is separated and kept in the dust cup.
Preferably, a first cylinder body, a second cylinder body and a bottom sealing plate for sealing a bottom inlet are arranged in the inner cavity of the mop, an active piston in sliding sealing fit with the first cylinder body is arranged in the first cylinder body, the active piston divides the interior of the first cylinder body into an active cavity and a first cavity communicated with the atmosphere, a first piston rod is arranged on the active piston, a return spring is arranged in the active cavity, one end of the return spring is connected with the active piston, the other end of the return spring is connected with the first cylinder body, a front hole is arranged on the mop seat, the first piston rod penetrates through the front hole and is in sliding sealing fit with the front hole, an auxiliary suction hole is arranged at the lower part of the front end of the mop seat, a front sealing plate for sealing the auxiliary suction hole is arranged on the first piston rod, the front sealing plate is arranged in the inner cavity of the mop, a passive piston in sliding sealing fit with the second cylinder body is arranged in the second cylinder body, the passive piston divides, the driven piston is provided with a second piston rod, the second piston rod is connected with the bottom sealing plate, the driving cavity is communicated with the driven cavity through an air pipe, and the driving piston is arranged between the first piston rod and the reset spring. When the mop seat is used for cleaning, the wall corners (between the wall body and the ground) are difficult to directly face the bottom inlet, so that the mop seat is difficult to clean. In this scheme, the user pushes away the organism and removes, and the mop seat removes thereupon, and after the mop seat was close the wall body, first piston rod pressurized was retreated, and preceding shrouding leaves vice suction hole, and some gas gets into passive chamber in the initiative intracavity to drive the removal of second piston rod, the import at the end of the shrouding seal of end. At the moment, the suction force is concentrated at the auxiliary suction hole, and the mop seat is automatically converted into side suction from 'down suction', so that the corner can be effectively cleaned. Then, the user can make the mop seat get away from the wall body, each structure resets under the action of the reset spring, and the mop seat restores to suck down.
Preferably, the first piston rod is provided with a top plate outside the inner cavity of the mop, the top plate is provided with an elastic block, and the top plate is arranged between the elastic block and the first piston rod. The elastic block is used for contacting the wall surface, so that the wall body can be prevented from being damaged by collision and scraping.
Preferably, the bottom sealing plate is connected with the mop base in a sliding mode, and the second piston rod is connected with the bottom sealing plate through a plurality of support rods. The second piston rod is connected with the bottom sealing plate through the support rod.
Preferably, the first cylinder body is fixed with the mop base through the cylinder body frame, the second cylinder body is fixed with the bottom in the mop base, the sliding direction of the driving piston is horizontal, and the sliding direction of the driven piston is horizontal. The first cylinder body is fixed by the cylinder body frame, and the second cylinder body can be directly fixed with the mop base. The sliding direction of the driving piston and the sliding direction of the driven piston are horizontal, and the stability of the installation and the working process is facilitated.
The invention has the beneficial effects that: the portable cleaning device can be charged, is convenient to use, does not need an external wire during operation, and has strong cleaning capability and good silencing effect; when the invention is used, the main body is pushed to drive the main land wheel to roll on the ground, and the mop seat moves on the ground. The dust collection motor sucks air, the garbage on the ground enters the dust cup through the bottom inlet, the inner cavity of the mop, the upper connecting pipe, the body air inlet pipe and the cup air inlet along with the air flow, the garbage which cannot pass through the filter holes is isolated by the filter cartridge and is left in the dust cup, and the air flow is discharged outside through the air inlet end of the dust collection motor, the air exhaust end of the dust collection motor and the body air outlet. The cotton of making an uproar falls on the body air exit can effectively reduce the noise of airing exhaust, plays the silence effect. When the mop is not needed, the upper connecting pipe can be separated from the air inlet pipe of the mop body, and then the upper connecting pipe is connected with other dust suction pipes or dust suction structures for dust suction; after the upper connecting pipe is separated from the air inlet pipe, the external flat suction pipe can be pulled down, connected to the air inlet pipe and then subjected to dust collection; the inner filtering sponge can play a role in secondary filtering, so that the micro-dust in the airflow is separated and retained in the dust cup; when the mop seat is used for cleaning, the wall corners (between the wall body and the ground) are difficult to directly face the bottom inlet, so that the mop seat is difficult to clean. In this embodiment, the user pushes the body to move, the mop base moves along with the body, and after the mop base approaches the wall, the elastic block contacts the wall and retreats under pressure to drive the first piston rod to move, the front sealing plate leaves the auxiliary suction hole, and a part of gas in the driving cavity enters the driven cavity to drive the second piston rod to move, and the bottom sealing plate seals the bottom inlet. At the moment, the suction force is concentrated at the auxiliary suction hole, and the mop seat is automatically converted into side suction from 'down suction', so that the corner can be effectively cleaned. Then, the user can make the mop seat get away from the wall body, each structure resets under the action of the reset spring, and the mop seat restores to suck down. In addition, the top plate is used as a framework, and the elastic block is used as a contact part with the wall body, so that the wall body can be effectively protected, and the wall body is prevented from being damaged by collision and scraping.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the internal structure of embodiment 1 of the present invention;
FIG. 3 is a front view of embodiment 1 of the present invention;
FIG. 4 is a partial structural view of embodiment 2 of the present invention;
fig. 5 is an enlarged view at a in fig. 4.
In the figure; the mop cleaning machine comprises a machine body 1, a dust collection motor 2, a mop base 3, a bottom inlet 31, a rubber surrounding edge 32, a bottom sealing plate 33, an auxiliary suction hole 34, a front sealing plate 35, a dust cup 4, a cup body 41, a cup cover 42, a filter cylinder 43, an inner filter sponge 44, an external flat suction pipe 5, a first cylinder body 6, an active cavity 6a, a first cavity 6b, an active piston 61, a first piston rod 62, a return spring 63, a top plate 64, an elastic block 65, a second cylinder body 7, a passive cavity 7a, a second cavity 7b, a passive piston 71, a second piston rod 72 and a support rod 73.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Example 1: as shown in figures 1, 2 and 3,
a charging type silent dust collector comprises
The dust collection device comprises a machine body 1, a dust collection motor 2 and a rechargeable battery pack for supplying power to the dust collection motor;
the machine body is provided with a mop seat 3, a body air inlet pipe, a body air outlet and a dust cup 4 clamped with the machine body, and the body air outlet is provided with noise reduction cotton;
the dust cup comprises a cup body 41 and a cup cover 42 clamped with the cup body, a cup air inlet and a cup air outlet are arranged on the cup body, a filter cylinder 43 for separating the cup air inlet and the cup air outlet is arranged in the cup body, and a plurality of filter holes are formed in the filter cylinder;
the body air inlet pipe, the cup air inlet, the cup air outlet, the dust collection motor air inlet end, the dust collection motor air outlet end and the body air outlet are communicated in sequence;
the mop base is provided with a bottom inlet 31, a mop inner cavity and an upper connecting pipe which is clamped with the body air inlet pipe, the bottom inlet 31, the mop inner cavity and the upper connecting pipe are sequentially communicated, the upper connecting pipe is communicated with the body air inlet pipe, and the mop base is provided with a main floor wheel.
When the invention is used, the main body is pushed to drive the main land wheel to roll on the ground, and the mop seat moves on the ground. The dust collection motor sucks air, the garbage on the ground enters the dust cup through the bottom inlet, the inner cavity of the mop, the upper connecting pipe, the body air inlet pipe and the cup air inlet along with the air flow, the garbage which cannot pass through the filter holes is isolated by the filter cartridge and is left in the dust cup, and the air flow is discharged outside through the air inlet end of the dust collection motor, the air exhaust end of the dust collection motor and the body air outlet. The cotton of making an uproar falls on the body air exit can effectively reduce the noise of airing exhaust, plays the silence effect. When the mop is not needed, the upper connecting pipe can be separated from the air inlet pipe of the mop body, and then the upper connecting pipe is connected with other dust suction pipes or dust suction structures for dust suction.
The machine body is provided with an external flat suction pipe 5, the inlet end of the external flat suction pipe can be clamped and communicated with the air inlet pipe, the machine body is provided with a temporary seat, and the external flat suction pipe is clamped and connected with the temporary seat. After the upper connecting pipe is separated from the air inlet pipe, the external flat suction pipe can be pulled down, connected to the air inlet pipe and then subjected to dust collection.
The periphery of the bottom of the mop seat is provided with a rubber surrounding edge 32, the upper end of the rubber surrounding edge is fixed with the bottom of the mop seat, a gap is formed between the bottom of the mop seat and the ground, and the front end of the rubber surrounding edge is provided with an opening. The rubber surrounding edge is in contact with the ground, and the front end of the rubber surrounding edge is provided with the opening, so that a dust collection space can be effectively surrounded, the dust collection effect can be improved, and partial noise transmitted from the bottom inlet can be effectively isolated.
An inner filtering cavity is arranged between the filter cylinder and the air outlet of the cup, an inner filtering sponge 44 is arranged in the inner filtering cavity, and the inner filtering sponge is positioned in the dust cup. The inner filtering sponge can play a role in secondary filtering, so that the micro-dust in the airflow is separated and kept in the dust cup.
Example 2: based on the embodiment 1, as shown in fig. 4 and 5,
a first cylinder body 6, a second cylinder body 7 and a bottom sealing plate 33 for sealing a bottom inlet are arranged in the inner cavity of the mop, an active piston 61 matched with the first cylinder body in a sliding and sealing manner is arranged in the first cylinder body, the interior of the first cylinder body is divided into an active cavity 6a and a first cavity 6b communicated with the atmosphere by the active piston, a first piston rod 62 is arranged on the active piston, a reset spring 63 is arranged in the active cavity, one end of the reset spring is connected with the active piston, the other end of the reset spring is connected with the first cylinder body, a front hole is arranged on the mop seat, the first piston rod penetrates through the front hole and is matched with the front hole in a sliding and sealing manner, an auxiliary suction hole 34 is arranged at the lower part of the front end of the mop seat, a front sealing plate 35 for sealing the auxiliary suction hole is arranged on the first piston rod, the front sealing plate is positioned in the inner cavity of the mop, a passive piston 71 matched with the second cylinder body in a sliding and sealing manner is arranged in the, the driven piston is provided with a second piston rod 72, the second piston rod is connected with the bottom sealing plate, the driving cavity is communicated with the driven cavity through an air pipe, and the driving piston is arranged between the first piston rod and the reset spring. The first piston rod is provided with a top plate 64 which is positioned outside the inner cavity of the mop, the top plate is provided with an elastic block 65, and the top plate is positioned between the elastic block and the first piston rod. The bottom sealing plate is connected with the mop base in a sliding mode, and the second piston rod is connected with the bottom sealing plate through a plurality of support rods 73. The first cylinder body is fixed with the mop base through the cylinder body frame, the second cylinder body is fixed with the bottom in the mop base, the sliding direction of the driving piston is horizontal, and the sliding direction of the driven piston is horizontal.
When the mop seat is used for cleaning, the wall corners (between the wall body and the ground) are difficult to directly face the bottom inlet, so that the mop seat is difficult to clean. In this embodiment, the user pushes the body to move, the mop base moves along with the body, and after the mop base approaches the wall, the elastic block contacts the wall and retreats under pressure to drive the first piston rod to move, the front sealing plate leaves the auxiliary suction hole, and a part of gas in the driving cavity enters the driven cavity to drive the second piston rod to move, and the bottom sealing plate seals the bottom inlet. At the moment, the suction force is concentrated at the auxiliary suction hole, and the mop seat is automatically converted into side suction from 'down suction', so that the corner can be effectively cleaned. Then, the user can make the mop seat get away from the wall body, each structure resets under the action of the reset spring, and the mop seat restores to suck down. In addition, the top plate is used as a framework, and the elastic block is used as a contact part with the wall body, so that the wall body can be effectively protected, and the wall body is prevented from being damaged by collision and scraping.
Claims (6)
1. A charging type silent dust collector is characterized by comprising
The dust collection device comprises a machine body, a dust collection motor and a rechargeable battery pack for supplying power to the dust collection motor;
the machine body is provided with a mop seat, a body air inlet pipe, a body air outlet and a dust cup clamped with the machine body, and the body air outlet is provided with noise reduction cotton;
the dust cup comprises a cup body and a cup cover clamped with the cup body, a cup air inlet and a cup air outlet are formed in the cup body, a filter cylinder for separating the cup air inlet and the cup air outlet is arranged in the cup body, and a plurality of filter holes are formed in the filter cylinder;
the body air inlet pipe, the cup air inlet, the cup air outlet, the dust collection motor air inlet end, the dust collection motor air outlet end and the body air outlet are communicated in sequence;
the mop seat is provided with a bottom inlet, a mop inner cavity and an upper connecting pipe which is clamped with the body air inlet pipe, the bottom inlet, the mop inner cavity and the upper connecting pipe are sequentially communicated, the upper connecting pipe is communicated with the body air inlet pipe, and the mop seat is provided with a main floor wheel;
a first cylinder body, a second cylinder body and a bottom sealing plate for sealing a bottom inlet are arranged in the inner cavity of the mop, an active piston matched with the first cylinder body in a sliding and sealing manner is arranged in the first cylinder body, the interior of the first cylinder body is divided into an active cavity and a first cavity communicated with the atmosphere by the active piston, a first piston rod is arranged on the active piston, a return spring is arranged in the active cavity, one end of the return spring is connected with the active piston, the other end of the return spring is connected with the first cylinder body, a front hole is arranged on the mop seat, the first piston rod penetrates through the front hole and is matched with the front hole in a sliding and sealing manner, an auxiliary suction hole is arranged at the lower part of the front end of the mop seat, a front sealing plate for sealing the auxiliary suction hole is arranged on the first piston rod, the front sealing plate is positioned in the inner cavity of the mop, a passive piston matched with the second cylinder body in a sliding and sealing manner, the driven piston is provided with a second piston rod, the second piston rod is connected with the bottom sealing plate, the driving cavity is communicated with the driven cavity through an air pipe, and the driving piston is arranged between the first piston rod and the reset spring;
the bottom sealing plate is connected with the mop base in a sliding mode, and the second piston rod is connected with the bottom sealing plate through a plurality of support rods.
2. The rechargeable silent dust collector as claimed in claim 1, wherein the body is provided with an external flat suction pipe, the inlet end of the external flat suction pipe is connected to and connected to the air inlet pipe, the body is provided with a temporary seat, and the external flat suction pipe is connected to the temporary seat.
3. The rechargeable silent dust collector as claimed in claim 1, wherein a rubber surrounding edge is provided around the bottom of the mop base, the upper end of the rubber surrounding edge is fixed to the bottom of the mop base, a gap is formed between the bottom of the mop base and the floor, and an opening is provided at the front end of the rubber surrounding edge.
4. The rechargeable silent dust collector as claimed in claim 1, 2 or 3, wherein an inner filter chamber is arranged between the filter cartridge and the cup outlet, an inner filter sponge is arranged in the inner filter chamber, and the inner filter sponge is arranged in the dust cup.
5. The rechargeable silent dust collector as claimed in claim 1, wherein the first piston rod has a top plate disposed outside the cavity of the mop, the top plate has an elastic block, and the top plate is disposed between the elastic block and the first piston rod.
6. The rechargeable silent dust collector as claimed in claim 1, wherein the first cylinder is fixed to the mop base via a cylinder frame, the second cylinder is fixed to the bottom of the mop base, the active piston slides horizontally, and the passive piston slides horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672330.3A CN108852149B (en) | 2018-06-26 | 2018-06-26 | Rechargeable silence dust extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672330.3A CN108852149B (en) | 2018-06-26 | 2018-06-26 | Rechargeable silence dust extraction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108852149A CN108852149A (en) | 2018-11-23 |
| CN108852149B true CN108852149B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810672330.3A Active CN108852149B (en) | 2018-06-26 | 2018-06-26 | Rechargeable silence dust extraction |
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| CN (1) | CN108852149B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413104B (en) * | 2021-03-08 | 2022-09-13 | 杭州博乐工业设计股份有限公司 | Charging device for steam mop |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210571A (en) * | 2010-04-12 | 2011-10-12 | 乐金电子(天津)电器有限公司 | Brush head |
| CN201727457U (en) * | 2010-05-06 | 2011-02-02 | 江苏美的春花电器股份有限公司 | Dust collector |
| CN202776154U (en) * | 2012-08-28 | 2013-03-13 | 莱克电气股份有限公司 | Multifunctional dust collector |
| CN202761189U (en) * | 2012-09-07 | 2013-03-06 | 光荣电业（东莞）有限公司 | Cleaning device with corners concentrating suction |
| CN203280334U (en) * | 2013-05-27 | 2013-11-13 | 莱克电气股份有限公司 | Dust collector with improved motor hood |
| CN105662271B (en) * | 2016-02-18 | 2017-11-10 | 宁波海际电器有限公司 | A kind of portable rotoclone collector |
| CN209153439U (en) * | 2018-06-26 | 2019-07-26 | 宁波海际电器有限公司 | Rechargeable mute dust-collector |
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2018
- 2018-06-26 CN CN201810672330.3A patent/CN108852149B/en active Active
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