CN211849194U - Cleaning and dust removing equipment - Google Patents
Cleaning and dust removing equipment Download PDFInfo
- Publication number
- CN211849194U CN211849194U CN202020369182.0U CN202020369182U CN211849194U CN 211849194 U CN211849194 U CN 211849194U CN 202020369182 U CN202020369182 U CN 202020369182U CN 211849194 U CN211849194 U CN 211849194U
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- China
- Prior art keywords
- dust
- chamber
- sweeping
- filtering
- filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 171
- 238000004140 cleaning Methods 0.000 title claims abstract description 49
- 239000002904 solvent Substances 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000010408 sweeping Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 17
- 238000009288 screen filtration Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 241001417527 Pempheridae Species 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a clean dust collecting equipment, include: the box body comprises a dust collection chamber and a filter chamber; the filtering chamber is internally stored with solvent, the air inlet of the filtering chamber is communicated with the dust absorption chamber, and the air in the dust absorption chamber is sucked into the filtering chamber through the air suction device, and the filtering chamber is provided with an air outlet, and the air inlet and the air outlet of the filtering chamber are both positioned above the liquid level of the solvent; the first filter screen is positioned between the air inlet and the air outlet of the filter chamber, rotates through the driving mechanism and is contacted with the solvent in the rotating process; the dust suction device is arranged in the dust suction chamber; the cleaning device is arranged at the bottom of the dust collection chamber and is used for cleaning dust raised on the ground so as to be sucked into the dust collection chamber by the dust collection device; wherein, the gas that contains the dust in the dust suction chamber under the effect of the device that induced drafts gets into in the filter chamber, and the gas is discharged by the gas vent after passing through first filter screen filtration. The equipment can thoroughly remove dust and has good dust removal effect.
Description
Technical Field
The utility model belongs to the technical field of remove dust, especially, relate to a clean dust collecting equipment.
Background
Civil engineering is a general term for the scientific and technological process of building various engineering facilities. The method refers to applied materials, equipment and technical activities such as surveying, designing, constructing, maintaining and repairing, a large amount of dust is generated in the civil engineering construction process and accumulated on the ground, once wind blows, the dust can be scattered everywhere, and if the dust is not cleaned, the dust can cause damage to the bodies of workers in long-time work.
The existing sweeping and dust removing equipment for civil engineering is used for sweeping dust accumulated on the ground, and then absorbing and storing the swept dust.
The prior art can not further treat the dust, is easy to cause secondary pollution of the dust and has poor dust removal effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a clean dust collecting equipment, this equipment can thoroughly clear away the dust, and dust removal effect is good.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a sweeping dust removal apparatus comprising:
the box body comprises a dust collection chamber and a filter chamber; the filtering chamber is internally stored with a solvent, an air inlet of the filtering chamber is communicated with the dust absorption chamber, air in the dust absorption chamber is sucked into the filtering chamber through an air suction device, the filtering chamber is provided with an air outlet, and the air inlet and the air outlet of the filtering chamber are both positioned above the liquid level of the solvent;
the first filter screen is positioned between the air inlet and the air outlet of the filter chamber, and rotates through the driving mechanism and contacts with the solvent in the rotating process;
the dust suction device is arranged in the dust suction chamber;
the cleaning device is arranged at the bottom of the dust collection chamber and is used for cleaning dust raised from the ground so as to be sucked into the dust collection chamber by the dust collection device;
and the air containing the dust in the dust suction chamber enters the filter chamber under the action of the air suction device, is filtered by the first filter screen and then is discharged from the air outlet.
According to the utility model discloses an embodiment, actuating mechanism is for locating first pivot in the filter chamber, first filter screen is located in the pivot, just first pivot is in order rotatory through the drive of first drive arrangement.
According to the utility model discloses an embodiment, dust extraction includes the suction fan, the suction chamber bottom is equipped with the dust absorption mouth, the vertical second pivot that is equipped with in the suction chamber, the second pivot is passed through the drive of second drive arrangement in order rotatory, the suction fan is located the second pivot just is located the dust absorption mouth, the second pivot drives the suction fan is rotatory in order to inhale the dust.
According to the utility model discloses an embodiment, cleaning device includes the brush cleaner, the second pivot is worn to locate the dust absorption mouth, the bottom of second pivot is located the below of dust absorption mouth just is equipped with the brush cleaner, the second pivot drives the brush cleaner is rotatory in order to clean.
According to the utility model discloses an embodiment, including locating a plurality of clean brushes in the filter chamber, first filter screen rotate the in-process with clean brush contact is in order to clear away the adhesion on the first filter screen the dust.
According to the utility model discloses an embodiment, including locating screw rod in the filter chamber, the screw rod rotate connect in on the filter chamber wall, it is a plurality of clean brush pass through the nut connect in the screw rod, and every first filter screen all correspond with one clean brush contact.
According to the utility model discloses an embodiment, the filter chamber bottom is equipped with the watering slotted hole, just the watering slotted hole is equipped with the second filter screen, the solvent warp the watering slotted hole is unrestrained.
According to the utility model discloses an embodiment, including the mounting bracket, the box is located on the mounting bracket, the mounting bracket is equipped with handle and its bottom and is equipped with the gyro wheel.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the embodiment of the utility model provides an in set up box, dust extraction, cleaning device, first pivot and first filter screen. The cleaning device cleans dust accumulated on the ground, so that the dust is sucked into a dust suction chamber arranged in the box body by the dust suction device after being lifted, the dust accumulated on the ground can be efficiently removed, and the dust is difficult to be directly sucked by the dust suction device with thick dust accumulated on the ground, so the dust is firstly lifted by the cleaning device; dust enters the dust collection chamber and then enters the filter chamber through the air suction device to be filtered by the first filter screen, and the first filter screen rotates through the first rotating shaft to be in contact with a solvent in the filter chamber, so that the first filter screen is stained with the solvent, the solvent can better adsorb the dust, the dust can be easily adhered to a wet object, and a certain amount of dust can be dissolved by the solvent, so that the dust removal effect is better, for example, the dust of calcium carbonate can be dissolved in an acidic solvent; and when the first filter screen contacts with the solvent, part of dust on the first filter screen enters the solvent, so that the effect of cleaning the first filter screen is achieved.
(2) The embodiment of the utility model provides an in dust extraction includes the suction fan, the suction fan rotates with the dust absorption through the second pivot, cleaning device includes the brush cleaner, the brush cleaner also rotates in order to clean ground through the second pivot, that is to say the second pivot drives suction fan and brush cleaner simultaneously and rotates in order to clean and remove dust, makes the compact cost-saving of overall structure, need not to set up two sets of power unit, and makes suction fan and brush cleaner linkage in step, and dust removal effect is better, also makes the operation more simple and convenient.
(3) The embodiment of the utility model provides an in the filter chamber be equipped with a plurality of clean brushes, first filter screen rotate the in-process with the rotatory contact of clean brush in order to clear away the dust of adhesion on first filter screen, further clear away the dust on the first filter screen of adhesion through clean brush, make first filter screen filter effect better.
(4) The embodiment of the utility model provides an in the filter chamber screw rod, screw rod rotate to be connected on the filter chamber wall, and a plurality of clean brushes pass through the nut to be connected in the screw rod, make the aversion that can realize clean brush of rotating the screw rod, can conveniently control the contact of clean brush and first filter screen and part.
(5) The embodiment of the utility model provides an in the bottom of filter chamber be equipped with the watering slotted hole, make the solvent can spill subaerially to moist ground prevents the raise dust.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a sweeping and dust-removing apparatus of the present invention;
FIG. 2 is a front view of a sweeping and dust-removing apparatus of the present invention;
fig. 3 is a partial enlarged view of the dust removing device of the present invention.
Description of reference numerals:
1: a box body; 2: a dust collection chamber; 3: a filtering chamber; 4: a solvent; 5: an exhaust port; 6: a first rotating shaft; 7: a first driving device; 8: a first filter screen; 9: an air suction fan; 10: a dust suction port; 11: a second rotating shaft; 12: a second driving device; 13: cleaning with a brush; 14: cleaning the brush; 15: a screw; 16: a watering slot hole; 17: a second filter screen; 18: a mounting frame; 19: a handle; 20: a roller; 21: an air suction device; 22: a rotating wheel; 23: a window is penetrated; 24: a card holder; 25: a clamping block; 26: a spring.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
Referring to fig. 1 to 3, the core of the utility model is to provide a clean dust collecting equipment, including box 1, dust extraction, cleaning device and at least one first filter screen 8, cleaning device cleans ground and raises the dust and make it inhale dust absorption room 2 by dust extraction, and the dust gets into in the dust absorption room 2 back rethread suction device 21 and gets into filter chamber 3 and filter by first filter screen 8, and first filter screen 8 is stained with solvent 4 and can adsorb the dust better, and dissoluble partial dust. The equipment can thoroughly remove dust and has good dust removal effect.
The box body 1 comprises a dust suction chamber 2 and a filter chamber 3, that is, two cavities are arranged in the box body 1, but the dust suction chamber 2 and the filter chamber 3 can also be formed by two independent box bodies 1. A dust collection device is arranged in the dust collection chamber 2, a cleaning device is arranged at the bottom of the dust collection chamber 2 and used for cleaning dust accumulated on the ground to lift the dust, the dust collection device is used for absorbing the dust lifted by the cleaning device into the dust collection chamber 2, the dust is lifted by the cleaning device firstly because the dust accumulated on the common ground is thick, and the dust collection device is difficult to directly suck the dust, so that the dust is lifted by the cleaning device firstly, the dust collection effect is better, and the dust accumulated on the ground can be removed; the air inlet of the filter chamber 3 is communicated with the dust suction chamber 2, and the air in the dust suction chamber 2 is sucked into the filter chamber 3 through the air suction device 21, that is, the dust in the dust suction chamber 2 is sucked into the filter chamber 3 for filtering, and the filtered air is discharged through the air outlet 5 of the filter chamber 3.
Store up solvent 4 and be equipped with at least one first filter screen 8 in the filter chamber 3, first filter screen 8 is located between the air inlet of filter chamber 3 and gas vent 5, and the air inlet of filter chamber 3 and gas vent 5 all are located 4 liquid levels of solvent, make the gas of taking the dust discharge from gas vent 5 through first filter screen 8 filtration after the air inlet entering of filter chamber 3, filter through first filter screen 8 and detach the dust, make the dust can't cause secondary pollution. And the first filter 8 is rotated by the driving mechanism and contacts the solvent 4 during the rotation.
The filter chamber 3 is further provided with a first rotating shaft 6 which can be driven to rotate by a first driving device 7, the first driving device 7 can be a motor and is arranged at one end of the first rotating shaft 6, the first filter screens 8 are arranged on the first rotating shaft 6, the first filter screens 8 can rotate through the first rotating shaft 6, and the first filter screens 8 are in contact with the solvent 4 for a part of time or all the time in the rotating process, so that dust on the first filter screens 8 can be washed away by the solvent 4, and the solvent 4 can be stained on the first filter screens 8, so that dust can be better filtered, because the dust can be more easily adhered to wet objects, and some dust can be dissolved by the solvent 4, the dust removing effect is better, for example, calcium carbonate dust can be dissolved in the acid solvent 4.
In the preferred scheme, first pivot 6 level sets up, and it is located 4 liquid levels of solvent, and first filter screen 8 is circular, and it closely cooperates or has very little clearance with the inner wall of filter chamber 3, makes the dust can not spill and all filter through first filter screen 8, makes the filter effect better, and circular first filter screen 8 part soaks in solvent 4.
The dust chamber 2 and the filter chamber 3 are communicated through a pipeline, and the air suction device 21 is arranged on the pipeline or at the opening of the pipeline, and the air suction device 21 can be a fan.
Specifically, dust extraction includes suction fan 9, 2 bottoms in dust absorption room are equipped with dust absorption mouth 10, the vertical second pivot 11 that is equipped with in the dust absorption room 2, and second pivot 11 rotates and connects on 2 walls in dust absorption room, second pivot 11 passes through the drive of second drive arrangement 12 with rotatory, suction fan 9 locates second pivot 11 and is located dust absorption mouth 10 department, perhaps is located inside the dust absorption room 2, second pivot 11 drives suction fan 9 rotatory, make dust absorption mouth 10 go out and produce suction in order to absorb external dust. Further, the second driving device 12 is a motor and is disposed at the top end of the second rotating shaft 11.
Cleaning device includes sweeper brush 13, and second pivot 11 wears to locate dust absorption mouth 10, and the bottom of second pivot 11 is located the below of dust absorption mouth 10 and is connected with sweeper brush 13, and sweeper brush 13 bottom contact ground, and second pivot 11 drives sweeper brush 13 rotatory, and sweeper brush 13 is rotatory in order to clean ground and make the dust raise.
In a further optimized scheme, a plurality of cleaning brushes 14 are arranged in the filtering chamber 3, the first filtering net 8 can be contacted with the cleaning brushes 14 to rub against each other all the time or part of the time in the rotating process so as to remove the dust filtered by the first filtering net 8 and adhered to the first filtering net 8, the solvent 4 stained on the first filtering net 8 can also increase the effect of cleaning the first filtering net 8 by the cleaning brushes 14, and otherwise, the dust on the cleaning brushes 14 can also be cleaned by the solvent 4. The dust accumulated on the filter screen is removed through the cleaning brush 14, the self-cleaning of the first filter screen 8 is realized, and meanwhile, the first filter screen 8 always keeps a good filtering effect, so that the dust removing effect of the whole equipment is better.
In the concrete scheme, the level is equipped with screw rod 15 in the filter chamber 3, screw rod 15 rotates to be connected on 3 walls of filter chamber, a plurality of cleaning brush 14 pass through the nut and connect in screw rod 15, that is to say, cleaning brush 14 upper end is equipped with the nut, and connect on the nut outer wall, nut threaded connection is in screw rod 15, every first filter screen 8 all corresponds and a cleaning brush 14 contact, in this embodiment, first filter screen 8 and cleaning brush 14 are six, and cleaning brush 14 all is located same one side of first filter screen 8, screw rod 15 one end is connected with runner 22, and runner 22 is located the 3 outsides of filter chamber. The rotating wheel 22 is rotated by hand to rotate the screw 15, because the screw 15 is rotationally connected to the wall of the filtering chamber 3, the screw 15 only rotates without axial movement, and the nut is in threaded connection with the screw 15, the screw 15 rotates to drive the nut to rotate and axially move along the screw 15, the cleaning hairbrush 14 is heavy, the nut cannot rotate circumferentially, so that the displacement of the cleaning hairbrush 14 is realized, and the contact and separation of the cleaning hairbrush 14 and the first filtering screen 8 can be conveniently controlled.
In a further scheme, a water spraying groove hole 16 is formed in the bottom of the filtering chamber 3, the water spraying groove hole 16 is in a grid shape, a second filtering net 17 is arranged on the water spraying groove hole 16, the solvent 4 can be sprayed through the water spraying groove hole 16, an end cover is further arranged on the water spraying groove hole 16, and the solvent 4 can be prevented from being sprayed when the water spraying device is not used. The solvent 4 can be water or other neutral, acidic, alkaline solvent 4, etc., and when the solvent 4 is water or other non-polluted solvent 4, the solvent 4 can be sprinkled on the ground through the sprinkling slot 16 to wet the ground and prevent dust.
Specifically, be equipped with cassette 24 on the hole wall of watering slotted hole 16, two upper and lower extension portions are radially extended along watering slotted hole 16 to cassette 24, are equipped with fixture block 25 on two upper and lower extension portions, and second filter screen 17 joint is between two fixture blocks 25, and is equipped with spring 26 between fixture block 25 and the second filter screen 17, and spring 26 can compress tightly second filter screen 17 and make the cooperation fasten, also can play shockproof effect. The fixture block 25 and the spring 26 can also realize the detachment and installation of the second filter 17, so that the second filter 17 can be cleaned conveniently.
For convenient removal, still include mounting bracket 18, box 1 locates on mounting bracket 18, and mounting bracket 18 is equipped with handle 19 and its bottom is equipped with gyro wheel 20, and gyro wheel 20 is the universal wheel, and is equipped with arresting gear, and accessible hand push handle 19 removes whole equipment.
The working process of the present invention is further explained as follows:
firstly, the handle 19 is pushed by hand to move the cleaning and dust removing equipment to a place needing cleaning and dust removing, then the second driving device 12 is opened to enable the second rotating shaft 11 to rotate, the second rotating shaft 11 drives the suction fan 9 and the cleaning brush 13 to rotate at high speed, so that the ground is cleaned and dust is removed, and dust raised during cleaning is sucked into the dust collection chamber 2; at the same time, the air suction device 21 is started to suck the air with dust in the dust suction chamber 2 into the filter chamber 3.
And meanwhile, the first driving device 7 is started to drive the first rotating shaft 6 to rotate so as to enable the first filter screen 8 to rotate, the air with dust enters through the air inlet of the filter chamber 3 and is filtered by the first filter screen 8 to be discharged from the exhaust port 5, and the dust is filtered by the first filter screen 8.
Meanwhile, the rotating wheel 22 is manually rotated to rotate the screw 15, so as to control the contact and separation of the cleaning brush 14 and the first filter screen 8, and achieve the purpose of cleaning the first filter screen 8. Meanwhile, the solvent 4 is sprinkled on the ground through the sprinkling slot holes 16, and the ground is moistened to prevent dust. The filtering chamber is also provided with a through window 23 for observing the residual amount of the solvent so as to replenish the solvent at the right moment.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (8)
1. A sweeping dust removing device is characterized by comprising:
the box body comprises a dust collection chamber and a filter chamber; the filtering chamber is internally stored with a solvent, an air inlet of the filtering chamber is communicated with the dust absorption chamber, air in the dust absorption chamber is sucked into the filtering chamber through an air suction device, the filtering chamber is provided with an air outlet, and the air inlet and the air outlet of the filtering chamber are both positioned above the liquid level of the solvent;
the first filter screen is positioned between the air inlet and the air outlet of the filter chamber, and rotates through the driving mechanism and contacts with the solvent in the rotating process;
the dust suction device is arranged in the dust suction chamber;
the cleaning device is arranged at the bottom of the dust collection chamber and is used for cleaning dust raised from the ground so as to be sucked into the dust collection chamber by the dust collection device;
and the air containing the dust in the dust suction chamber enters the filter chamber under the action of the air suction device, is filtered by the first filter screen and then is discharged from the air outlet.
2. The sweeping and dust-removing device of claim 1, wherein the driving mechanism is a first rotating shaft disposed in the filtering chamber, the first filtering net is disposed on the rotating shaft, and the first rotating shaft is driven by a first driving device to rotate.
3. The sweeping and dust-removing device of claim 1, wherein the dust suction device comprises a suction fan, a dust suction opening is formed in the bottom of the dust suction chamber, a second rotating shaft is vertically arranged in the dust suction chamber and driven to rotate by a second driving device, the suction fan is arranged on the second rotating shaft and located at the dust suction opening, and the second rotating shaft drives the suction fan to rotate to suck dust.
4. The sweeping and dust-removing device of claim 3, wherein the sweeping device comprises a sweeping brush, the second rotating shaft penetrates through the dust suction port, the bottom end of the second rotating shaft is located below the dust suction port and is provided with the sweeping brush, and the second rotating shaft drives the sweeping brush to rotate for sweeping.
5. The sweeping dust collecting apparatus defined in claim 1, including cleaning brushes disposed in said filter chamber, said first filter screen being in contact with said cleaning brushes during rotation to remove said dust adhering to said first filter screen.
6. The sweeping and dust-removing device of claim 5, comprising a screw rod disposed in the filtering chamber, the screw rod being rotatably connected to the wall of the filtering chamber, a plurality of cleaning brushes being connected to the screw rod via nuts, and each of the first filtering meshes being in contact with one of the cleaning brushes.
7. The sweeping dust collecting apparatus as set forth in claim 1, wherein said filtering chamber is provided at the bottom thereof with a water sprinkling slot hole through which said solvent is sprinkled, and said water sprinkling slot hole is provided with a second filtering net.
8. The sweeping and dedusting apparatus as set forth in claim 1, comprising a mounting frame, wherein the box body is provided on the mounting frame, the mounting frame is provided with a handle and a roller is provided at the bottom thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369182.0U CN211849194U (en) | 2020-03-20 | 2020-03-20 | Cleaning and dust removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369182.0U CN211849194U (en) | 2020-03-20 | 2020-03-20 | Cleaning and dust removing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211849194U true CN211849194U (en) | 2020-11-03 |
Family
ID=73135047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020369182.0U Expired - Fee Related CN211849194U (en) | 2020-03-20 | 2020-03-20 | Cleaning and dust removing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211849194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999814A (en) * | 2021-03-17 | 2021-06-22 | 刘蒙蒙 | Portable small region dust collecting equipment of supporting of mining usefulness |
| CN115253572A (en) * | 2022-07-06 | 2022-11-01 | 浙江欧耐力新材料有限公司 | Special dust collecting equipment for PVC floor production workshop |
-
2020
- 2020-03-20 CN CN202020369182.0U patent/CN211849194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999814A (en) * | 2021-03-17 | 2021-06-22 | 刘蒙蒙 | Portable small region dust collecting equipment of supporting of mining usefulness |
| CN115253572A (en) * | 2022-07-06 | 2022-11-01 | 浙江欧耐力新材料有限公司 | Special dust collecting equipment for PVC floor production workshop |
| CN115253572B (en) * | 2022-07-06 | 2024-02-09 | 浙江欧耐力新材料有限公司 | Special dust collecting equipment for PVC floor production workshop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |