CN204803819U - Anti -blow system and sweeping machine of sweeping machine - Google Patents
Anti -blow system and sweeping machine of sweeping machine Download PDFInfo
- Publication number
- CN204803819U CN204803819U CN201520264732.1U CN201520264732U CN204803819U CN 204803819 U CN204803819 U CN 204803819U CN 201520264732 U CN201520264732 U CN 201520264732U CN 204803819 U CN204803819 U CN 204803819U
- Authority
- CN
- China
- Prior art keywords
- blowing
- sweeping machine
- blow
- noise elimination
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an anti -blow system and sweeping machine of sweeping machine. The anti -blow system includes anti -blow fan and anti -blow flow path, the import and the atmosphere intercommunication of anti -blow fan, the export of anti -blow fan with the import intercommunication of anti -blow flow path, the export and the anti -blow interface intercommunication of anti -blow flow path, wherein, the anti -blow interface set up in on the sucking disc of sweeping machine and with the inner chamber intercommunication of sucking disc. Because this anti -blow system has adopted and has been independent of the anti -blow fan that cleans with outside the centrifugal fan, what anti -blow adopted comes from external clear air to do not have the anti -blow who carries the dust who comes from the dustbin and directly arrange to the atmosphere, reduced the secondary raise dust.
Description
Technical field
The utility model relates to environmental sanitation mechanical field, particularly a kind of back-blowing system of sweeping machine and sweeping machine.
Background technology
In environmental sanitation mechanical field, the main working parts of sweeping machine is cleaning centrifugal blower, brush and sucker.The main working process of sweeping machine is as follows: in sweeping machine traveling, the course of work, under the effect of brush, the dust on road surface and foreign material are collected near sucker, cleaning centrifugal blower runs up simultaneously, higher negative pressure is produced in dustbin, under higher suction function, dust and foreign material are inhaled into dustbin via the suction inlet of sucker.In order to improve the sweeping efficiency of sweeping machine, road surface being picked up by suction more clean, single or multiple back-blowing interface is often set on sucker, so that part foreign material are blown afloat, be more conducive to sucker suction and pick up.
The back-blowing system be connected with back-blowing interface of prior art, directly as back-blowing wind regime using the air-flow of cleaning centrifugal blower outlet, then the back-blowing pipeline and back-blowing interface that are connected to the outlet of this cleaning centrifugal blower is flowed through, finally blow to road surface from the back blow port bottom sucker, the program effectively can utilize the exit flow of cleaning centrifugal blower.
Realizing in process of the present utility model, inventor finds that above prior art has following weak point:
1, the dust bringing cleaning centrifugal blower into through air-flow also directly can drain into air, causes reentrainment of dust;
If 2 draw several back-blowing pipeline from the outlet of cleaning centrifugal blower and introduce sucker simultaneously, back-blowing quantity not sufficient may be caused;
3, the aerodynamic noise source produced in cleaning centrifugal blower inside directly can be transmitted to the external world via back-blowing pipeline, brings noise problem;
4, the control of back-blowing start and stop and air quantity must regulate the valve block being positioned at cleaning centrifugal blower exit, and inconvenient operating personnel realize this operation in driver's cabin.
Utility model content
The purpose of this utility model is the back-blowing system and the sweeping machine that provide a kind of sweeping machine, can reduce the reentrainment of dust of back-blowing system.
The utility model first aspect provides a kind of back-blowing system of sweeping machine, described back-blowing system comprises back-blowing blower fan and back-blowing stream, the import of described back-blowing blower fan is communicated with air, the outlet of described back-blowing blower fan and the inlet communication of described back-blowing stream, the outlet of described back-blowing stream and back-blowing orifice, wherein, described back-blowing interface be arranged at described sweeping machine sucker on and with the inner space of described sucker.
Further, described back-blowing stream comprises noise elimination air channel.
Further, described back-blowing stream also comprises back-blowing pipeline, and described noise elimination air channel is arranged at the upstream of described back-blowing pipeline, or the two ends in described noise elimination air channel are respectively arranged with described back-blowing pipeline.
Further, described back-blowing pipeline is flexible plastic corrugated conduit or vulcanie pipeline.
Further, described sucker comprises multiple back-blowing interface, and described back-blowing stream comprises and the multiple outlet one to one of described multiple back-blowing interface.
Further, described back-blowing blower fan be arranged at described sweeping machine chassis on or be arranged on the sucker of described sweeping machine.
Further, described back-blowing system also comprises control device, described control device comprises the on off control portion for controlling the start and stop of described back-blowing blower fan and/or the gear control part for controlling described back-blowing blower fan gear, and described control device is positioned at the driver's cabin of described sweeping machine.
Further, described back-blowing system also comprises noise elimination protective cover, and described noise elimination protective cover covers at described back-blowing blower fan outside and has air intake and air outlet.
Further, described air intake comprises the multiple fresh air inlets on the cover wall being arranged at described noise elimination protective cover.
The utility model second aspect provides a kind of sweeping machine, comprises sucker and back-blowing system, wherein, and the back-blowing system of the sweeping machine of described back-blowing system according to any one of the utility model first aspect.
The back-blowing system of the sweeping machine provided based on the utility model and sweeping machine, the back-blowing system of sweeping machine comprises back-blowing blower fan and back-blowing stream, the import of back-blowing blower fan is communicated with air, the outlet of back-blowing blower fan and the inlet communication of back-blowing stream, the outlet of back-blowing stream and back-blowing orifice.Because this back-blowing system have employed the back-blowing blower fan outside independent of cleaning centrifugal blower, the clean air that what back-blowing adopted is from the external world, thus the back-blowing carrying dust do not had from dustbin directly drains into air, decrease reentrainment of dust.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will become clear.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the back-blowing system of the sweeping machine of the utility model first embodiment.
Fig. 2 is the structural representation of the back-blowing system of the sweeping machine of the utility model second embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the utility model and application or use.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing manual.In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
The back-blowing system of the sweeping machine of each embodiment of the utility model comprises back-blowing blower fan and back-blowing stream, the import of back-blowing blower fan is communicated with air, the outlet of back-blowing blower fan and the inlet communication of back-blowing stream, the outlet of back-blowing stream and back-blowing orifice.On the sucker that back-blowing interface is arranged at sweeping machine and with the inner space of sucker.
Because this back-blowing system have employed the back-blowing blower fan outside independent of cleaning centrifugal blower, the clean air that what back-blowing adopted is from the external world, thus the back-blowing carrying dust do not had from dustbin directly drains into air, decrease reentrainment of dust.The more important thing is, when utilizing the air-out of cleaning centrifugal blower as back-blowing wind regime, due to cleaning with centrifugal blower air-out from dustbin, often carry dust and part steam, therefore, be difficult to the back-blowing stream between cleaning centrifugal blower and the back-blowing interface of sucker arranges silencing means, otherwise dust and steam stick on silencing means inwall, its soundproof effect can be had a strong impact on for a long time, even lost efficacy, and adopt independently after back-blowing blower fan, the clean air that what back-blowing adopted is from the external world, drier, thus provide the foundation to the noise reducing back-blowing system for arranging noise elimination air channel on back-blowing stream.
Wherein, back-blowing blower fan is preferably centrifugal blower.The setting position of back-blowing blower fan can have multiple change, such as, can be arranged on the chassis of sweeping machine, also can be arranged on the sucker of sweeping machine.Control device for the start and stop and gear that control back-blowing blower fan is then preferably placed in the driver's cabin of sweeping machine.
The quantity of back-blowing interface can be one or more, and corresponding to the quantity of back-blowing interface, the outlet of back-blowing runner also can be one or more, thus with back-blowing interface one_to_one corresponding.
Back-blowing stream preferably includes noise elimination air channel, may also be only back-blowing pipeline, also can comprise other annex beyond noise elimination air channel and/or back-blowing pipeline, such as flow control valve etc.When arranging back-blowing pipeline and noise elimination air channel in back-blowing stream, noise elimination air channel can be arranged at the upstream of back-blowing pipeline simultaneously, also can be to be arranged between one section of back-blowing pipeline.
In addition, this back-blowing system can also comprise other annex such as noise elimination protective cover for the protection of back-blowing blower fan.
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described.
First embodiment
Fig. 1 is the structural representation of the back-blowing system of the sweeping machine of the utility model first embodiment.
As shown in Figure 1, the back-blowing system 10 of the sweeping machine of the first embodiment comprises back-blowing blower fan and back-blowing stream.
The import of back-blowing blower fan is communicated with air, the outlet of back-blowing blower fan and the inlet communication of back-blowing stream.In first embodiment, back-blowing blower fan is back-blowing centrifugal blower 12, and back-blowing centrifugal blower 12 is separate with cleaning centrifugal blower 50.Back-blowing centrifugal blower 12 and cleaning centrifugal blower 50 are all arranged on the chassis of sweeping machine.Back-blowing centrifugal blower 12 is arranged in the middle part of the chassis of sweeping machine.
Back-blowing centrifugal blower 12 object is set and is to provide independently dust free back-blowing wind regime.Back-blowing centrifugal blower 12 can pass through electric power or hydraulic-driven.The control device controlling back-blowing centrifugal blower 12 is arranged in driver's cabin.Control device is provided with the on off control portion for controlling back-blowing centrifugal blower 12 start and stop and/or the gear control part for controlling back-blowing centrifugal blower 12 gear, so that operating personnel determine the opening and closing of back-blowing system 10 and the selection of air force according to pavement behavior.
The back-blowing stream of the first embodiment comprises noise elimination air channel 13 and is arranged at noise elimination air channel 13 back-blowing pipeline 14.Wherein noise elimination air channel 13 is arranged at the upstream of back-blowing pipeline 14.
As shown in Figure 1, sucker 60 has the left and right sides, top that two back-blowing interfaces, 61, two back-blowing interfaces 61 are arranged at sucker 60 respectively altogether.The back-blowing stream of corresponding back-blowing system 10 has two of connecting one to one with two back-blowing interfaces 61 respectively and exports.
The import in noise elimination air channel 13 and the import of back-blowing stream, be positioned at the middle part in noise elimination air channel 13, and respectively there is an outlet at the two ends in noise elimination air channel 13.The import in noise elimination air channel 13 connects the outlet of back-blowing centrifugal blower 12.The noise elimination effect in this noise elimination air channel 13 can weaken the aerodynamic noise of back-blowing centrifugal blower 12 inside generation, reduces and is transmitted to extraneous radiated noise via back-blowing air-flow.Namely it is an easy resistance noise reduction device, possesses the function of air splitter passage and noise elimination noise reduction simultaneously.
Two sections of back-blowing pipelines 14 are had in first embodiment.The outlet at two ends, Silenced air channel 13 connects one section of back-blowing pipeline 14 separately.Namely the outlet of every section of back-blowing pipeline 14 is the outlet of back-blowing stream.The outlet of each back-blowing pipeline 14 connects corresponding back-blowing interface 61.Back-blowing pipeline 14 is preferably plastic film capicitor or vulcanie pipeline.
Back-blowing centrifugal blower 12 sucks back-blowing from air, flow through Silenced air channel 13 from the back-blowing of back-blowing centrifugal blower 12 outlet outflow and carry out noise elimination noise reduction and shunting, back-blowing interface 61 is flowed into again by both sides back-blowing pipeline 14, and then flow into the inner chamber of sucker 60, and blow to ground from the back blow port bottom sucker 60.
The present embodiment also provides a kind of sweeping machine with back-blowing system 10.
Second embodiment
Fig. 2 is the structural representation of the back-blowing system of the sweeping machine of the utility model second embodiment.
As shown in Figure 2, the back-blowing system 20 of the sweeping machine of the second embodiment comprises back-blowing blower fan, back-blowing stream and noise elimination protective cover 21.
In second embodiment, back-blowing blower fan is back-blowing centrifugal blower, and back-blowing centrifugal blower is separate with cleaning centrifugal blower.In the middle part of the end face that back-blowing centrifugal blower is arranged at sucker 60 and sucker 60 for connect dustbin two suction inlets 62 between.Dust and foreign material are picked up into dustbin from two suction inlets 62 of sucker 60 by suction.Noise elimination protective cover 21 covers at the outside of back-blowing centrifugal blower, does not therefore indicate back-blowing centrifugal blower in fig. 2.
Noise elimination protective cover 21 covers at back-blowing centrifugal blower outside and has air intake and air outlet.The import of back-blowing centrifugal blower is communicated with air by multiple fresh air inlets of noise elimination protective cover 21.The outlet of back-blowing centrifugal blower is by the inlet communication of the air outlet on noise elimination protective cover 21 and back-blowing stream.
As shown in Figure 2, in the second embodiment preferably, air intake comprises the multiple fresh air inlets be arranged on the cover wall of noise elimination protective cover 21.Arranging of multiple fresh air inlet can play certain filtration, avoids the impurity such as larger particle to enter back-blowing system.
The object arranging back-blowing centrifugal blower is to provide independently dust free back-blowing wind regime.Back-blowing centrifugal blower can pass through electric power or hydraulic-driven.The control device controlling back-blowing centrifugal blower is arranged in driver's cabin.Control device is provided with the on off control portion for controlling back-blowing centrifugal blower 12 start and stop and/or the gear control part for controlling back-blowing centrifugal blower 12 gear, so that operating personnel determine the opening and closing of back-blowing system 20 and the selection of air force according to pavement behavior.
As shown in Figure 2, sucker 60 has the left and right sides, top that two back-blowing interfaces, 61, two back-blowing interfaces 61 are arranged at sucker 60 respectively altogether.The back-blowing stream of corresponding back-blowing system 20 has two of connecting one to one with two back-blowing interfaces 61 respectively and exports.
The back-blowing stream of the second embodiment comprise two sections of back-blowing pipelines 22 and with two sections of back-blowing pipelines 22, two sections of noise elimination air channels 24 one to one.Every section of noise elimination air channel 24 is positioned on corresponding back-blowing pipeline 22.Preferably every section of noise elimination air channel 13 is arranged between one section of corresponding back-blowing pipeline 14.Namely the two ends in noise elimination air channel 24 are respectively arranged with back-blowing pipeline 22.
As shown in Figure 2, the back-blowing stream of being drawn from the outlet of back-blowing centrifugal blower by the air outlet of noise elimination protective cover 21 is divided into two-way, and every road correspondence connects the import of one section of back-blowing pipeline 22, the wherein import of back-blowing pipeline 22 and the import of back-blowing stream.Corresponding noise elimination air channel 24 is added in the middle of every section of back-blowing pipeline 22.Noise elimination air channel 24 can weaken the aerodynamic noise that back-blowing centrifugal blower produces, and reduces and is transmitted to extraneous radiated noise via back-blowing air-flow.The outlet of every section of back-blowing pipeline 22 and the outlet of back-blowing stream, a back-blowing interface 61 of the corresponding connecting sucker 60 of outlet of every section of back-blowing pipeline 22.Back-blowing pipeline 22 is preferably flexible plastic corrugated conduit or vulcanie pipeline.
Back-blowing centrifugal blower sucks back-blowing from air, the back-blowing flowed out from the outlet of back-blowing centrifugal blower flows into two sections of back-blowing pipelines 22 and then noise elimination noise reduction is carried out in the noise elimination air channel 24 flowed through every section of back-blowing pipeline 22 respectively, back-blowing interface 61 is flowed into again by the outlet of back-blowing pipeline 22, and then flow into the inner chamber of sucker 60, and blow to ground from the back blow port bottom sucker 60.
The present embodiment also provides a kind of sweeping machine with this back-blowing system 20.
Known according to above description, the above embodiment tool of the utility model has the following advantages:
Because this back-blowing system have employed the back-blowing blower fan outside independent of cleaning centrifugal blower, the clean air that what back-blowing adopted is from the external world, thus the back-blowing carrying dust do not had from dustbin directly drains into air, decrease reentrainment of dust.
Owing to being provided with independently back-blowing blower fan, back-blowing blower fan with the export volume of required back-blowing stream and the quantity Matching of back-blowing interface can be set, thus, the shortcoming of the back-blowing quantity not sufficient that back-blowing may cause from cleaning centrifugal blower outlet extraction can be overcome.
Owing to arranging noise elimination air channel in back-blowing stream, therefore, can also overcome utilize cleaning centrifugal blower to export air-flow as back-blowing time, the aerodynamic noise source that cleaning centrifugal blower inside produces directly is transmitted to extraneous the problem bringing noise via back-blowing pipeline.
Owing to being installed in the driver's cabin of sweeping machine by the control device of the start and stop and gear that control back-blowing blower fan, handled easily personnel realize the associative operation that back-blowing controls in driver's cabin.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (10)
1. the back-blowing system of a sweeping machine, it is characterized in that, described back-blowing system comprises back-blowing blower fan and back-blowing stream, the import of described back-blowing blower fan is communicated with air, the outlet of described back-blowing blower fan and the inlet communication of described back-blowing stream, the outlet of described back-blowing stream and back-blowing orifice, wherein, on the sucker that described back-blowing interface is arranged at described sweeping machine and with the inner space of described sucker.
2. the back-blowing system of sweeping machine according to claim 1, is characterized in that, described back-blowing stream comprises noise elimination air channel.
3. the back-blowing system of sweeping machine according to claim 2, it is characterized in that, described back-blowing stream also comprises back-blowing pipeline, and described noise elimination air channel is arranged at the upstream of described back-blowing pipeline, or the two ends in described noise elimination air channel are respectively arranged with described back-blowing pipeline.
4. the back-blowing system of sweeping machine according to claim 2, is characterized in that, described back-blowing pipeline is flexible plastic corrugated conduit or vulcanie pipeline.
5. the back-blowing system of sweeping machine according to any one of claim 1 to 4, is characterized in that, described sucker comprises multiple back-blowing interface, and described back-blowing stream comprises and the multiple outlet one to one of described multiple back-blowing interface.
6. the back-blowing system of sweeping machine according to any one of claim 1 to 4, is characterized in that, on the chassis that described back-blowing blower fan is arranged at described sweeping machine or be arranged on the sucker of described sweeping machine.
7. the back-blowing system of sweeping machine according to any one of claim 1 to 4, it is characterized in that, described back-blowing system also comprises control device, described control device comprises the on off control portion for controlling the start and stop of described back-blowing blower fan and/or the gear control part for controlling described back-blowing blower fan gear, and described control device is positioned at the driver's cabin of described sweeping machine.
8. the back-blowing system of sweeping machine according to any one of claim 1 to 4, is characterized in that, described back-blowing system also comprises noise elimination protective cover, and described noise elimination protective cover covers at described back-blowing blower fan outside and has air intake and air outlet.
9. the back-blowing system of sweeping machine according to claim 8, is characterized in that, described air intake comprises the multiple fresh air inlets on the cover wall being arranged at described noise elimination protective cover.
10. a sweeping machine, comprises sucker and back-blowing system, it is characterized in that, described back-blowing system is the back-blowing system of sweeping machine according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264732.1U CN204803819U (en) | 2015-04-28 | 2015-04-28 | Anti -blow system and sweeping machine of sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264732.1U CN204803819U (en) | 2015-04-28 | 2015-04-28 | Anti -blow system and sweeping machine of sweeping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204803819U true CN204803819U (en) | 2015-11-25 |
Family
ID=54588668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264732.1U Active CN204803819U (en) | 2015-04-28 | 2015-04-28 | Anti -blow system and sweeping machine of sweeping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204803819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586844A (en) * | 2015-04-28 | 2016-05-18 | 徐工集团工程机械股份有限公司 | Reverse blowing system of road sweeper and road sweeper |
-
2015
- 2015-04-28 CN CN201520264732.1U patent/CN204803819U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586844A (en) * | 2015-04-28 | 2016-05-18 | 徐工集团工程机械股份有限公司 | Reverse blowing system of road sweeper and road sweeper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203855919U (en) | Blowing and suction type pavement cleaning device | |
| CN105586844A (en) | Reverse blowing system of road sweeper and road sweeper | |
| WO2009039624A3 (en) | Pick-up head having a re-circulating air system for a mobile sweeping vehicle | |
| CN103982218B (en) | The directed dedusting fan of a kind of mine | |
| CN204803819U (en) | Anti -blow system and sweeping machine of sweeping machine | |
| CN203890563U (en) | Sectional-type dust exhaust device for roving frame | |
| CN102852109A (en) | Air sucking and blowing machine with air inlet valve structure | |
| CN202506276U (en) | Underground dust collection system | |
| CN204862969U (en) | Pressure -vaccum formula dust catcher | |
| CN202619573U (en) | Dust collector with self-cleaning function | |
| CN106149605A (en) | A kind of sweeping machine air-transport system and sweeping machine thereof | |
| CN201339612Y (en) | Anti-sandstorm device of ventilator of drawing motor of engine | |
| CN202626913U (en) | Blowing and suction machine with air intake valve structure | |
| CN110486869A (en) | A kind of air purifier of built-in flexible aspiration channel | |
| CN208321528U (en) | A kind of cleaning systems of pipeline dust | |
| CN206919309U (en) | A kind of New-air purifying system | |
| CN207142495U (en) | A kind of improved tail yarn cleaning machine | |
| CN110236444A (en) | The dust catcher of energy self-cleaning filter device | |
| CN206008286U (en) | The split type filtration system of dry type dust collecting and cleaning vehicles | |
| CN204684885U (en) | A kind of novel dust removing system | |
| CN204325991U (en) | One sweeps pipeline equipment circulating current air outlet wet type device for reducing dust | |
| CN204432625U (en) | Movable water-saving automobile cleaner | |
| CN209155446U (en) | A kind of high-efficiency tobacco cloud Flash Gas Compression Skid System | |
| CN206343002U (en) | DISA lines penetrate sand vent gas scrubber | |
| CN202705593U (en) | Open-end spinning splicing dolly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |