CN208740859U - A kind of suction inlet component and its scrubbing brush - Google Patents

A kind of suction inlet component and its scrubbing brush Download PDF

Info

Publication number
CN208740859U
CN208740859U CN201721738844.1U CN201721738844U CN208740859U CN 208740859 U CN208740859 U CN 208740859U CN 201721738844 U CN201721738844 U CN 201721738844U CN 208740859 U CN208740859 U CN 208740859U
Authority
CN
China
Prior art keywords
suction inlet
scraping article
inlet component
dust
suction
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
Application number
CN201721738844.1U
Other languages
Chinese (zh)
Inventor
周松亮
林卓明
杨涌
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.)
Wave Speed Asia Enterprises
Original Assignee
Wave Speed Asia Enterprises
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 Wave Speed Asia Enterprises filed Critical Wave Speed Asia Enterprises
Priority to CN201721738844.1U priority Critical patent/CN208740859U/en
Application granted granted Critical
Publication of CN208740859U publication Critical patent/CN208740859U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The utility model discloses a kind of suction inlet component and its scrubbing brushes, wherein the suction inlet component includes the suction inlet of channel-shaped, be equipped in the suction inlet can swing scraping article, the bottom end of scraping article beyond the suction inlet bottom end and with ground face contact, so that the scraping article is contradicted the suction inlet when swinging forward or backward.When suction inlet component moves forward; under the action of frictional ground force; scraping article is swung backward; and then the air flue of suction inlet second half section is sealed; the subsequent air-flow lattice in ground are broken simultaneously; it enables air-flow that can only be entered by suction inlet front end, concentrates on suction at front end inlet, dust can follow air-flow to be inhaled into dust catcher.When suction inlet component moves backward, similarly.The suction inlet component increases dust collection efficiency, improves cleaning effect, and suction inlet component can be cleared up after drawing before pushing away.

Description

A kind of suction inlet component and its scrubbing brush
Technical field
The utility model relates to dust collection equipment field more particularly to a kind of suction inlet component and using the suction inlet component Scrubbing brush.
Background technique
According to statistics, people daily an average of about 80% or more time spend indoors, therefore, indoor air quality pair The relationship of human health just seems more closely with important, the more room air of dust, is easy to induce chronic respiratory disease, Also it will increase the incidence of allergy, therefore, dust is the formidable enemy of human health.
In the prior art, dust catcher is widely used and reduces house dust, dust catcher sucks sundries and dust in predetermined region To execute cleaning function.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of suction inlet components, by being had in cleaning process Effect ground distribution aspirating unit, concentrates the suction of suction inlet, improves pick-up performance.
In order to solve the above technical problems, technical solution provided by the utility model are as follows:
A kind of suction inlet component, the suction inlet including channel-shaped, be equipped in the suction inlet slot can swing scraping article, The bottom end of scraping article beyond the suction inlet bottom end and with ground face contact, when swinging the scraping article forward or backward contradict described in Suction inlet.
Further, the scraping article is fabricated from a flexible material.
Further, the scraping article is supported in bracket, and the bracket is fixedly connected with the suction inlet, the top of the bracket End is connect with the top of the scraping article.
Further, the top of the scraping article is equipped with axis, and the scraping article is hinged by axis and the bracket.
Further, the U-type groove for accommodating the axis is offered on the bracket, U-type groove has a necking, necking Size is less than the diameter of the axis.
Further, the axis is made of hard material.
Further, the scraping article and the axis are integrally formed.
Another technical problem to be solved in the utility model is to provide a kind of scrubbing brush, by being had in cleaning process Effect ground distribution aspirating unit, concentrates the suction of suction inlet, improves pick-up performance.
In order to solve the above technical problems, technical solution provided by the utility model are as follows:
A kind of scrubbing brush, including suction inlet component, suction inlet component include the suction inlet of channel-shaped, it is characterised in that: the suction Be equipped among dirt mouth slot can swing scraping article, the bottom end of the bottom end of scraping article beyond the suction inlet and with ground face contact, The scraping article is set to contradict the suction inlet when swinging forward or backward.
Further, including the big dirt region for collecting large volume rubbish and the micronic dust area for collecting fine dust The inlet in the micronic dust region is arranged in domain, the suction inlet component.
It further, further include motor and hairbrush, the inlet in the big dirt region is provided with big dirt suction inlet, and hairbrush is set It sets at big dirt suction inlet, the rotation direction of hairbrush is towards the big dirt region, the hairbrush of the turning end of motor and the hairbrush Axis connection is simultaneously rotated with electric brush.
The utility model has the beneficial effects that
When pushing the scrubbing brush with the suction inlet component to move forward, under the action of frictional ground force, scraping article can be to Preceding swing is swung backward.When scraping article is swung forward or backward, on the one hand dust is made effectively to be swept into suction area, prevents ash Dirt escapes from suction area;On the other hand so that suction inlet is distributed air flue by scraping article, concentrate the suction at suction inlet.When suction inlet group When part moves forward, under the action of frictional ground force, scraping article is swung backward, and is contradicted on horizontal baffle, and then by suction inlet The air flue of rear end seals, while the subsequent air-flow lattice in ground being broken, and enables air-flow that can only be entered by suction inlet front end, makes at suction inlet Suction increase, dust can follow air-flow to be inhaled into dust catcher, increase dust collection efficiency, improve cleaning effect.When suction inlet group When part moves backward, under the action of frictional ground force, scraping article is swung forward, is contradicted on horizontal baffle, and then by suction inlet The air flue of front end seals, while the air-flow lattice before ground being broken, and enables air-flow that can only be entered by suction inlet rear end, makes at suction inlet Suction increase, dust can follow air-flow to be inhaled into dust catcher, increase dust collection efficiency, improve cleaning effect, suction inlet component It can be cleared up after being drawn before pushing away.
Detailed description of the invention
Fig. 1 is the status diagram of the utility model suction inlet component and its scrubbing brush preferred embodiment;
Fig. 2 is another status diagram of the utility model suction inlet component and its scrubbing brush preferred embodiment;
Fig. 3 is the partial enlarged view of A in Fig. 1;
Fig. 4 is the partial enlarged view of B in Fig. 2;
Fig. 5 is the bottom view of the utility model suction inlet component;
Fig. 6 is the bottom view of the utility model suction inlet component and its scrubbing brush preferred embodiment.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.
Embodiment 1
Fig. 1-Fig. 5 is please referred to, is a preferred embodiment of the utility model, the suction inlet component 100, the suction including channel-shaped Dirt mouth 110, be equipped among 110 slot of suction inlet can swing scraping article 120, the bottom end of scraping article 120 exceeds the suction The bottom end of dirt mouth 110 and with ground face contact, so that the scraping article 120 is contradicted the suction inlet 110 when swinging forward or backward.When When suction inlet component 100 moves forward, under the action of frictional ground force, scraping article 120 is swung backward, and is contradicted in suction inlet 110 On, and then the air flue of 110 rear end of suction inlet is sealed, while the subsequent air-flow lattice in ground being broken, enable air-flow can only be by suction inlet 110 front ends enter, and increase the suction at suction inlet 110, and dust can follow air-flow to be inhaled into dust catcher, increase dust suction effect Rate improves cleaning effect.When suction inlet component 100 moves backward, under the action of frictional ground force, scraping article 120 is to forward swing It is dynamic, it contradicts on suction inlet 110, and then the air flue of 110 front end of suction inlet is sealed, while the air-flow lattice before ground being broken, It enables air-flow that can only be entered by 110 rear end of suction inlet, increases the suction at suction inlet 110, dust can follow air-flow to be inhaled into suction In dirt device, increase dust collection efficiency, improve cleaning effect, suction inlet component 100 can be cleared up after drawing before pushing away.It is fixed in the application The direction that adopted user pushes suction inlet component 100 to move forward is front direction, and front is rear direction in the opposite direction.Below Above-mentioned each component part is further described in detail respectively.
As shown in Fig. 3, Fig. 4 and Fig. 5, which includes suction inlet 110, scraping article 120 and bracket 130.
Suction inlet 110 includes side wall 111, cavity 112 and suction inlet 113.Side wall 111 includes front side wall 1111 and rear side Wall 1112, front side wall 1111 and rear wall 1112 are oppositely arranged, and front side wall 1111 and rear wall 1112 are preferably made of plate, and two Person is parallel to each other, and vertical with front direction respectively.In the present embodiment, the section of side wall 111 is preferably rectangular, certainly may be used To be the shapes such as round, oval, semicircle, trapezoidal.
Open cavity 112 is formed between front side wall 1111 and rear wall 1112.Cavity 112 is for sucking dust, up and down Both ends open, the lower ending opening of hollow cavity 112 are the suction inlet 113 that dust enters suction inlet 110, and the upper end of cavity 112 is opened Mouth with the dust storage tank of dust catcher for being connected to.
The bottom end of front side wall 1111 and rear wall 1112 is respectively equipped with horizontal baffle 1113, and horizontal baffle 1113 is to cavity 112 extend, and form suction inlet 113, so that the size of suction inlet 113 is less than the size of cavity 112, increase at suction inlet 113 Strength makes dust be easier to enter cavity 112.Simultaneously because suction inlet 113 inside cavity 112 it is larger, dust suck after very It is easy that air-flow is followed to flow into dust storage tank.
In one embodiment of the application, front side wall 1111, rear wall 1112 and horizontal baffle 1113 can be separated and be made It makes and fits together again, can also be integrally formed, suction inlet 110 is made to become an entirety.
Be equipped in cavity 112 can swing scraping article 120, the bottom length of scraping article 120 exceeds 1111 He of front side wall The bottom end of rear wall 1112, under the action of frictional ground force, scraping article 120 can swing or swing backward forward, make scraping article 120 to It is preceding or horizontal baffle 1113 is contradicted when swinging backward.As shown in Fig. 1 and Fig. 3, when suction inlet component 100 moves forward, on ground Under the action of the frictional force of face, scraping article 120 is swung backward, and is contradicted on horizontal baffle 1113, and then by 110 rear end of suction inlet Air flue sealing, while the subsequent air-flow lattice in ground being broken, it enables air-flow that can only be entered by 110 front end of suction inlet, makes suction inlet 113 The suction at place increases, and dust can follow air-flow to be inhaled into dust catcher, increases dust collection efficiency, improves cleaning effect.Such as Fig. 2 and figure Shown in 4, when suction inlet component 100 moves backward, under the action of frictional ground force, scraping article 120 is swung forward, is contradicted in water On flat baffle 1113, and then the air flue of 110 front end of suction inlet is sealed, while the air-flow lattice before ground being broken, enables air-flow only It can be entered by 110 rear end of suction inlet, increase the suction at suction inlet 113, dust can follow air-flow to be inhaled into dust catcher, Increase dust collection efficiency, improve cleaning effect, suction inlet component 100 can be cleared up after drawing before pushing away.
Certainly, in one embodiment of the application, it can also be not provided with horizontal baffle 1113, scraping article 120 directly contradicts On front side wall 1111 or rear wall 1112.In order to improve the effect of scraping article 120, the left and right transverse width of scraping article 120 and sucking Mouthfuls 113 it is of same size.
In order to make suction inlet component 100 can adapt to broken terrain or barrier, scraping article 120 is preferably by flexible material Material is made, flexible material can bending deformation, can achieve better cleaning effect.It is soft in some embodiments of the present application Property material be rubber, polyorganosiloxane resin, epoxy resin, styrene thermoplastic elastomers' material, polyolefine thermoplastic elastomer material, At least one of thermoplastic polyurethane, polyester type elastomer body, polyamide thermoplastic elastic material.It is highly preferred that in order to improve The wearability and resistance to ag(e)ing of scraping article 120, scraping article 120 are made of thermoplastic polyurethane rubber.
In one embodiment of the application, scraping article 120 is supported in bracket 130, is fixed in cavity 112 by bracket 130, Bracket 130 is fixedly connected with side wall 111, and the top of bracket 130 is connect with the top of scraping article 120.
Specifically, bracket 130 is substantially domed, and the top of bracket 130 is connect with the top of scraping article 120, the bottom of bracket 130 End is fixedly connected with horizontal baffle 1113.In another embodiment of the application, the bottom end of bracket 130 and front side wall 1111 or Rear wall 1112 is fixedly connected.The number of bracket 130 has multiple, is evenly distributed on the suction inlet 113 of suction inlet component 100.It is excellent The both ends of selection of land, front side wall 1111 or rear wall 1112 pass through two brackets 130 respectively and link together.Bracket 130 can be with Side wall 111 is separately manufactured, then bracket 130 is fixed on side wall 111.Preferably, bracket 130 and side wall 111 are integrally formed.
Since scraping article 120 is fabricated from a flexible material, the top of scraping article 120 can be directly fixedly connected with bracket 130, By the bending deformation of scraping article 120, the function of swing is realized.
In order to which above-mentioned function is better achieved, further, as shown in figure 3, the top of scraping article 120 is equipped with axis 121, scraping article 120 is hinged by axis 121 and bracket 130.Axis 121 is preferably made of hard material, such as the hard such as metal or ABS engineering plastics Plastics.The hole matched with axis 121 or slot (not shown) can be set on bracket 130, axis 121 passes through the hole or slot, and It is rotated in the hole or slot.
In the preferred embodiment of the application, the U type groove for accommodating axis 121, U-type groove are offered on bracket 130 With a necking, the size of necking is less than the diameter of the axis 121.Bracket 130 is preferably made of elastic material, can slightly become Scraping article 120 can be dismantled or be installed at any time, cleaned with facilitating to scraping article 120 by shape, user.
In order to increase the intensity of suction inlet component 100, scraping article 120 is preferably integrally formed with axis 121.Certainly, scraping article 120 With axis 121 can also respective thermoplastic shaping, be then fixed together again.Further, suction inlet component 100 in order to prevent Because friction generates loud noise during traveling, rubber pad can also be installed (in figure not in the lower end surface of suction inlet component 100 It shows).It is mobile in order to facilitate suction inlet component 100, ball can also be embedded in (in figure not in the lower end surface of suction inlet component 100 It shows).
Embodiment 2
A kind of scrubbing brush including above-mentioned suction inlet component 100, further includes shell 400, divides as shown in figs. 1,2 and 6 Partition 500 and motor.Cavity in shell 400 is separated into big dirt region 200 and micronic dust region 300 by demarcation plate 500.The area great Chen It is set side by side before and after domain 200 and micronic dust region 300, for collecting large volume rubbish, micronic dust region 300 is used in big dirt region 200 Collect fine dust.The inlet in micronic dust region 300 is arranged in suction inlet component 100.
The inlet in big dirt region 200 is provided with big dirt suction inlet 210, and the size of big dirt suction inlet 210 is greater than above-mentioned suction Dirt mouth component 100.And hairbrush 220 is provided at big dirt suction inlet 210, the horizontal setting of hairbrush 220 is in big dirt suction inlet At 210, and the rotation direction of hairbrush 220 is towards big dirt region 200, and the hairbrush axis connection of the turning end of motor and hairbrush 220 is simultaneously It can be rotated with electric brush 220.
Bulk or heavier sundries, are rotated by hairbrush 220, and the heavier rubbish of bulk is swept into big dirt region 200 It is interior.Dust then enters micronic dust region 300 by suction inlet component 100, at this time since bulk or heavier sundries have been collected Into big dirt region 200, therefore suction inlet component 100 can be designed comparatively fine, to improve at suction inlet component 100 to ash The suction of dirt.
As depicted in figs. 1 and 2, in figure arrow direction be rubbish and dust flow direction.When pushing scrubbing brush forward, such as scheme Shown in 1, under the action of frictional ground force, scraping article 120 is swung backward, and is contradicted on horizontal baffle 1113, and then seal sucking The second half section of mouth 113, increase the strength at suction inlet 113, increase dust collection efficiency, improves cleaning effect.As shown in Fig. 2, to When pulling scrubbing brush afterwards, under the action of frictional ground force, scraping article 120 is swung forward, contradicts the Jin Erfeng on horizontal baffle 1113 The firmly front half section of suction inlet 113 increases the strength at suction inlet 113, increases dust collection efficiency, improves cleaning effect.
Comparative test 1
The application carries out the comparison of dust removal ability on floor using common in the market certain brand dust catcher and embodiment 2. Certain brand dust catcher bottom is dust absorption adapter connector, is equivalent to the scrubbing brush of the present embodiment;Top is motor and the component for collecting dust.It is real Apply the scrubbing brush in example 2, can be adapted at the top of certain brand dust catcher in comparative example 1.
In this comparative example, top is all made of the motor of certain brand dust catcher and collects the component of dust, and bottom is adopted respectively As a comparison case with the original-pack dust absorption adapter connector of certain brand, test is compared with the scrubbing brush of embodiment 2.
The weight m2 of weighing 35.0g normative mineral dirt m1 and one piece of rag, record.35.0g normative mineral dirt is carefully equal It is distributed on the test floor of 0.7m*1m, the dust absorption adapter connector of certain brand dust catcher is installed with bottom, while changing one evenly A clean dirt bag carries out dust-absorbing test after so that it is run 3min.Dust catcher is existed with "the" shape mode, the speed of about 0.5m/s It is moved on test face, until passing fully through test face.The remaining dust on test face is wiped to one with the rag m2 after weighing It opens on clean bright A4 paper, the dust on paper is carefully poured among rag, the heavy m3 of the rag after weighing wiping, record.Weight Repetition measurement tries five times.
Calculate floor dust removal ability, FR=[m1- (m3-m2)]/m1*100%.
The dust absorption adapter connector of certain brand dust catcher and top are separated, by the top of the scrubbing brush of embodiment 2 and certain brand dust catcher Portion installs.Repeat above-mentioned experiment.
The comparative test of dust removal ability on 1 floor of table
When comparative example carries out dust-absorbing test, due to not stopped effectively to dust, at the edge on test floor Remain a large amount of dust;And embodiment 2 hinders dust due to being provided with scraping article 130120 at suction inlet component 100 Gear is sucked into the dust for testing floor edge also in dirt bag.As can be seen that under equal conditions, the scrubbing brush of embodiment 2 will not Dust is omitted, cleaning is more thorough, more efficient.
Comparative test 2
Floor joint cleaner assay is carried out using method identical with comparative test 1,35.0g normative mineral dirt is carefully equal It is distributed in the floor joint of 1m long evenly, calculates separately the dust removal ability FR ' of comparative example Yu embodiment 2.
The comparative test of 2 floor joint dust removal ability of table
When comparative example carries out dust-absorbing test, since suction inlet size is larger, strength is smaller, to the dust in floor joint Cleaning capacity is weaker;And embodiment 2 is moved forward or backward due to being provided with scraping article 130120, scrubbing brush at suction inlet component 100 When dynamic, suction inlet component 100 has half that can be sealed by scraping article 130120, and the size of suction inlet component 100 is made to reduce half, gas Power increases substantially, and then significantly improves to the dust cleaning capacity in floor joint.As can be seen that under equal conditions, The scrubbing brush strength of embodiment 2 is bigger, and cleaning is more thorough, more efficient.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality It, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from this with novel thought The design of utility model, belongs to the protection scope of the utility model.

Claims (10)

1. a kind of suction inlet component, the suction inlet (110) including channel-shaped, it is characterised in that: installed in suction inlet (110) slot Have can swing scraping article (120), the bottom end of the bottom end of scraping article (120) beyond the suction inlet (110) and with ground face contact, The scraping article (120) is set to contradict the suction inlet (110) when swinging forward or backward.
2. suction inlet component according to claim 1, it is characterised in that: the scraping article (120) is to be fabricated from a flexible material 's.
3. suction inlet component according to claim 2, it is characterised in that: the scraping article (120) is supported in bracket (130), The bracket (130) is fixedly connected with the suction inlet (110), the top of the bracket (130) and the top of the scraping article (120) End connection.
4. suction inlet component according to claim 3, it is characterised in that: the top of the scraping article (120) is equipped with axis (121), the scraping article (120) is hinged by axis (121) and the bracket (130).
5. suction inlet component according to claim 4, it is characterised in that: offer on the bracket (130) for accommodating The U-type groove of the axis (121), U-type groove have a necking, and the size of necking is less than the diameter of the axis (121).
6. suction inlet component according to claim 4, it is characterised in that: the axis (121) is made of hard material.
7. suction inlet component according to claim 4, it is characterised in that: the scraping article (120) and the axis (121) one Molding.
8. a kind of scrubbing brush, including suction inlet component (100), suction inlet component (100) includes the suction inlet (110) of channel-shaped, special Sign is: be equipped among suction inlet (110) slot can swing scraping article (120), the bottom end of scraping article (120) exceeds institute State the bottom end of suction inlet (110) and with ground face contact, so that the scraping article (120) is contradicted the suction inlet when swinging forward or backward (110)。
9. scrubbing brush according to claim 8, it is characterised in that: including the big dirt region for collecting large volume rubbish (200) it is arranged with the micronic dust region (300) for collecting fine dust, the suction inlet component (100) in the micronic dust region (300) inlet.
10. scrubbing brush according to claim 9, it is characterised in that: further include motor and hairbrush (220), the big dirt region (200) inlet is provided with big dirt suction inlet (210), and hairbrush (220) is arranged at big dirt suction inlet (210), hairbrush (220) Rotation direction towards the big dirt region (200), the hairbrush axis connection of the turning end of motor and the hairbrush (220) simultaneously drives Hairbrush (220) rotation.
CN201721738844.1U 2017-12-13 2017-12-13 A kind of suction inlet component and its scrubbing brush Active CN208740859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721738844.1U CN208740859U (en) 2017-12-13 2017-12-13 A kind of suction inlet component and its scrubbing brush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721738844.1U CN208740859U (en) 2017-12-13 2017-12-13 A kind of suction inlet component and its scrubbing brush

Publications (1)

Publication Number Publication Date
CN208740859U true CN208740859U (en) 2019-04-16

Family

ID=66051476

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721738844.1U Active CN208740859U (en) 2017-12-13 2017-12-13 A kind of suction inlet component and its scrubbing brush

Country Status (1)

Country Link
CN (1) CN208740859U (en)

Similar Documents

Publication Publication Date Title
US7584522B1 (en) Vertical cyclonic vacuum assembly
CN109907694A (en) A kind of suction inlet component and its scrubbing brush
CN103269630A (en) Vacuum cleaner
CN211534250U (en) Dust box and mobile robot including dust box and cleaning system including mobile robot
CN105559703B (en) Cradle and there is its sweeping robot
CN109760452A (en) A kind of black board eraser with chalk-dust collector
US8161600B2 (en) Dust collecting pipe for vacuum cleaner
CN207949740U (en) A kind of dust catcher can be used for cleaning inner corner trim dust accumulation
CN104688135B (en) A kind of accessory structure applied on dust catcher
CN215305436U (en) Dust-collecting part of domestic dust collector convenient for replacement and cleaning
CN208740859U (en) A kind of suction inlet component and its scrubbing brush
US6286177B1 (en) Under cabinet vacuum device
CN106175591A (en) A kind of dust collection port structure
CN205636605U (en) Villous floats thing refuse collecting vehicle
CN208879151U (en) A kind of carpenter's plank processing dust removing machine
CN104799763B (en) A kind of barber shop hair cleaning plant
CN209680318U (en) A kind of intake stack electrostatic dust collection equipment
CN209450456U (en) Automatically the mopping device for sweeping all-in-one machine is dragged
CN216854099U (en) Education lectern that has dust absorption function
CN108939467A (en) A kind of table tennis circulating collection machine
CN105852737B (en) A kind of multi-functional mop
CN209529035U (en) A kind of flapper and scrubbing brush applied in dust suction cleaning equipment
CN201987459U (en) Multifunctional dust catcher
CN101422341A (en) Fixation rack with cover of dust-collecting bag for dust collector
CN209300992U (en) A kind of scrubbing brush air inlet duct and dust catcher

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant