CN214075572U - Air purification device used in cab of coal mine drilling machine equipment - Google Patents
Air purification device used in cab of coal mine drilling machine equipment Download PDFInfo
- Publication number
- CN214075572U CN214075572U CN202022911678.9U CN202022911678U CN214075572U CN 214075572 U CN214075572 U CN 214075572U CN 202022911678 U CN202022911678 U CN 202022911678U CN 214075572 U CN214075572 U CN 214075572U
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- China
- Prior art keywords
- fixedly connected
- plate
- box
- motor
- box body
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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
Links
- 238000004887 air purification Methods 0.000 title claims abstract description 12
- 239000003245 coal Substances 0.000 title claims description 28
- 238000005553 drilling Methods 0.000 title claims description 10
- 239000000428 dust Substances 0.000 claims abstract description 41
- 210000004209 hair Anatomy 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model discloses an air purification device for in colliery rig equipment driver's cabin. The technical key points are as follows: the power distribution box comprises a box body, air inlet and gas outlet have been seted up to the box, the box is close to air inlet one side fixedly connected with dust removal board, the dust removal board is close to air inlet one side and is equipped with ring gear, the meshing has drive gear on the ring gear, drive gear runs through the box and arranges it in it, the first motor of drive gear fixedly connected with, first motor passes through mount fixed connection in the box lateral wall, fixedly connected with brush board on the ring gear, be provided with the brush hair on the brush board, the brush hair laminating is on dust removal board surface setting, brush board central point puts and rotates and is connected with the connecting axle, the connecting axle rotates and is connected with the support frame, support frame fixed connection is in the box inside wall, the box is close to ground one side with the dust removal board and has seted up the through hole, the box passes through hole fixedly connected with the pipeline, the buggy collecting box is connected to the pipeline other end. The utility model has the advantages that: the coal dust is recycled, and resources are saved.
Description
Technical Field
The utility model relates to a coal mining technical field specifically is an air purification device for in colliery rig equipment driver's cabin.
Background
The air purifying equipment is a product capable of adsorbing, decomposing or converting various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde and other decoration pollution, bacteria, allergens and the like) and effectively improving air cleanliness, and is mainly divided into household, commercial, industrial and building products.
There are a number of different technologies and media in air purifiers that enable them to provide clean and safe air to users. Common air purification techniques are: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, superstructure mineralization by light technology, HEPA high efficiency filtration technology, electrostatic precipitation technology, etc.; the material technology mainly comprises the following steps: photocatalyst, active carbon, synthetic fiber, HEPA high-efficiency material, negative ion generator and the like. The existing air purifier is mostly of a composite type, namely, a plurality of purification technologies and material media are adopted at the same time.
The above prior art solution has the following drawbacks: the existing air purification device does not collect and recycle the pulverized coal on the dust removal net.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an air purification device for in colliery rig equipment driver's cabin, its advantage that has: the dust removal board that sets up can filter the buggy in the air, and the buggy that adheres to on the dust removal board can be cleaned through the brush board to collect in leading-in buggy collecting box of buggy through the pipeline, realized the recovery of buggy and recycled, saved the resource.
The above object of the present invention can be achieved by the following technical solutions:
an air purification device used in a cab of a coal mine drilling machine device comprises a box body, wherein an air inlet and an air outlet are formed in the box body, a dust removing plate is fixedly connected to one side, close to the air inlet, of the box body, a ring gear is arranged on one side, close to the air inlet, of the dust removing plate, a transmission gear is meshed with the ring gear and penetrates through the box body to be arranged outside the box body, a first motor is fixedly connected with the transmission gear, the first motor is fixedly connected to the outer side wall of the box body through a fixing frame, a brush plate is fixedly connected to the ring gear, combing hairs are arranged on the brush plate and are attached to the surface of the dust removing plate, a connecting shaft is rotatably connected to the central position of the brush plate, a supporting frame is rotatably connected to the connecting shaft, the supporting frame is fixedly connected to the inner side wall of the box body, and a through hole is formed in one side, close to the ground, of the box body and the dust removing plate, the box body is fixedly connected with a pipeline through the through hole, and the other end of the pipeline is connected with a pulverized coal collecting box.
Through adopting above-mentioned technical scheme, the dust removal board that sets up can filter the buggy in the air, and the buggy that adheres to on the dust removal board can be cleaned through the brush board to collect in leading-in buggy collection box of buggy through the pipeline, realized the recovery of buggy and recycled, saved the resource.
The present invention may be further configured in a preferred embodiment as: a baffle is arranged on one side, close to the air inlet, of the dust removing plate, and a lifting mechanism is arranged on the baffle.
Through adopting above-mentioned technical scheme, the baffle that sets up can be under will through elevating system cleaning the dust removal board in-process, prevents to clean the in-process and causes secondary pollution, also can improve the collection efficiency of buggy simultaneously.
The present invention may be further configured in a preferred embodiment as: elevating system includes the second motor, second motor fixed connection in the box lateral wall, second motor output runs through the connecting plate that is provided with vertical direction and rotates between the two and connect, second motor output fixedly connected with drive sprocket, drive sprocket is connected with driven sprocket through chain drive, driven sprocket fixedly connected with transmission shaft one end, the transmission shaft other end runs through the connecting plate and rotates between the two and connect, fixedly connected with fixed block on the chain, the cover is equipped with the annular plate and sliding connection between the two on the fixed block, annular plate fixed connection in the baffle.
Through adopting above-mentioned technical scheme, the second motor that sets up can drive sprocket rotatory to it is rotatory to drive driven sprocket through the chain, and fixed connection's fixed block can rotate along with the chain on the chain, thereby drives the annular plate and removes, and then drives and goes up and down with annular plate fixed connection's baffle.
The present invention may be further configured in a preferred embodiment as: the pulverized coal collecting box comprises a top plate, the pipeline penetrates through the top plate and is fixedly connected with the top plate and the top plate in front of the top plate and the top plate, the top plate is detachably connected with a water tank, a pulverized coal filtering plate is fixedly connected in the water tank, one side, close to the ground, of the water tank penetrates through a water outlet pipe and is fixedly connected with the water outlet pipe and the water outlet pipe, and a valve is arranged in the water outlet pipe.
Through adopting above-mentioned technical scheme, the water tank of setting can carry out water treatment to the air that thoughtlessly has buggy and accelerate the collection speed of buggy, and the filter of setting can filter the buggy of aquatic, and the apopore of setting can discharge the water in the water tank, and the water tank can conveniently be taken off to the water tank of dismantling the connection of setting to obtain the buggy.
The present invention may be further configured in a preferred embodiment as: the fixing frame comprises an annular fixing plate, the annular fixing plate is sleeved on the first motor and fixedly connected with the first motor and the second motor, the annular fixing plate is fixedly connected with a connecting frame, and the connecting frame is fixedly connected with the outer side wall of the box body.
Through adopting above-mentioned technical scheme, the mount fixed connection motor that sets up can promote the stable effect of motor, improves the reliability of device.
The present invention may be further configured in a preferred embodiment as: an exhaust fan is arranged in the pipeline.
Through adopting above-mentioned technical scheme, the air exhauster of setting can accelerate the collection efficiency to the buggy.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the dust removing plate can filter the pulverized coal in the air, and the pulverized coal attached to the dust removing plate can be cleaned through the brush plate, so that the pulverized coal is collected in the pulverized coal collecting box through a pipeline, the pulverized coal is recycled, and resources are saved.
2. The baffle through setting up can be under will cleaning the dust removal board in-process through elevating system, prevents to clean the in-process and causes secondary pollution, also can improve the collection efficiency of buggy simultaneously.
3. The second motor through setting up can drive sprocket rotatory to it is rotatory to drive driven sprocket through the chain, and fixed connection's fixed block can rotate along with the chain on the chain, thereby drives the annular plate and removes, and then drives and goes up and down with annular plate fixed connection's baffle.
Drawings
FIG. 1 is an overall structure of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a block diagram of a ring gear;
FIG. 4 is a structural view of the support frame;
fig. 5 is a structural view of the elevating mechanism.
Reference numerals: 1. a box body; 2. an air inlet; 3. an air outlet; 4. a dust removal plate; 5. a ring gear; 6. a transmission gear; 7. a first motor; 8. a fixed mount; 81. an annular fixed plate; 82. a connecting frame; 9. a through hole; 10. a pipeline; 11. a pulverized coal collecting box; 111. a top plate; 112. a water tank; 113. a pulverized coal filter plate; 114. a water outlet pipe; 12. a baffle plate; 13. a lifting mechanism; 131. a second motor; 132. a connecting plate; 133. a drive sprocket; 134. a chain; 135. a driven sprocket; 136. a drive shaft; 137. a fixed block; 138. an annular plate; 14. brushing the board; 15. brushing; 16. a connecting shaft; 17. a support frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 3 and fig. 4, the air cleaning device for the cab of the coal mine drilling machine equipment disclosed by the present invention comprises a box body 1, the box body 1 is provided with an air inlet 2 and an air outlet 3, one side of the box body 1 close to the air inlet 2 is fixedly connected with a dust removing plate 4, the dust removing plate 4 is vertically arranged, one side of the dust removing plate 4 close to the air inlet 2 is provided with a ring gear 5, the inner diameter of the ring gear 5 should be larger than the diameter of the dust removing plate 4 and parallel to each other, the ring gear 5 is engaged with a transmission gear 6, the diameter of the transmission gear 6 should be smaller than the outer diameter of the ring gear 5, and the transmission gear 6 penetrates through the box body 1 and is arranged outside the box body, the transmission gear 6 is fixedly connected with a first motor 7, the first motor 7 is a servo motor, the first motor 7 is fixedly connected to the outer side wall of the box body 1 through a fixing frame 8, the ring gear 5 is fixedly connected with a brush plate 14, the improved dust removal device is characterized in that combing hair is arranged on the brush plate, the brushing hair is attached to the surface of the dust removal plate, the brush plate 14 is parallel to the dust removal plate 4, the center of the brush plate 14 is rotatably connected with a connecting shaft 16, the connecting shaft 16 is perpendicular to the dust removal plate 4, the connecting shaft 16 is rotatably connected with a supporting frame 17, the supporting frame 17 is parallel to the dust removal plate 4, the supporting frame 17 is fixedly connected to the inner side wall of the box body 1, the fixed connection mode is through bolt connection, the box body 1 is adjacent to the dust removal plate 4 and is close to one side of the ground, a through hole 9 is formed in the box body 1, a pipeline 10 is fixedly connected with the through hole 9, and the other end of the pipeline 10 is connected with a pulverized coal collecting box 11.
As shown in fig. 1 and 2, a baffle 12 is disposed on the side of the dust-removing plate 4 close to the air inlet 2, the baffle 12 is disposed parallel to the dust-removing plate 4, and a lifting mechanism 13 is disposed on the baffle 12.
As shown in fig. 1, 2 and 5, the lifting mechanism 13 includes a second motor 131, the second motor 131 is a servo motor, the second motor 131 is fixedly connected to the outer side wall of the box 1, the fixed connection mode has no specific requirement, the output end of the second motor 131 is provided with a connecting plate 132 in the vertical direction in a penetrating manner and is rotatably connected with the connecting plate, the output end of the second motor 131 is fixedly connected with a driving sprocket 133, the fixed connection mode is through flat key connection, the driving sprocket 133 is connected with a driven sprocket 135 through a chain 134 in a driving manner, the driven sprocket 135 and the driving sprocket 133 are two identical sprockets which are on the same plane, the driven sprocket 135 is fixedly connected with one end of a transmission shaft 136, the transmission shaft 136 is arranged in a plane perpendicular to the sprocket, the other end of the transmission shaft 136 is connected with the connecting plate 132 in a penetrating manner and is rotatably connected with the two sprockets, a fixed block 137 is, the annular plate 138 is fixedly attached to the baffle plate 12.
As shown in fig. 1, the pulverized coal collecting box 11 includes a top plate 111, the pipeline 10 penetrates through the top plate 111 and is fixedly connected with the top plate 111, the top plate 111 is detachably connected with a water tank 112, a pulverized coal filtering plate 113 is fixedly connected in the water tank 112, one side of the water tank 112 close to the ground is provided with a water outlet pipe 114 in a penetrating manner and is fixedly connected with the water outlet pipe 114, and a valve is arranged in the water outlet pipe 114.
The implementation principle of the embodiment is as follows: when the device is used, air enters the purification device through the air inlet 2, the arranged dust removing plate 4 can filter solid particles mixed with coal dust in the air, the fixed particles can be attached to the surface of the dust removing plate 4, and after the solid particles attached to the dust removing plate 4 reach a certain degree, the baffle 12 can be lowered by the arranged lifting mechanism 13 under the driving of the second motor 131, so that secondary pollution is prevented from being caused in the process of cleaning the dust removing plate 4; after the baffle 12 descends, the first motor 7 is started, and the transmission gear 6 can rotate along with the first motor 7, so that the ring gear 5 meshed with the transmission gear 6 is driven to rotate, and then the brush plate 14 arranged on the ring gear 5 and the dust removing plate 4 are driven to move relatively, and the effect of collecting pulverized coal by cleaning the dust removing plate 4 is achieved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The air purification device for the cab of the coal mine drilling machine equipment comprises a box body (1) and is characterized in that an air inlet (2) and an air outlet (3) are formed in the box body (1), the box body (1) is close to a dust removal plate (4) fixedly connected to one side of the air inlet (2), the dust removal plate (4) is close to one side of the air inlet (2) and is provided with a ring gear (5), a transmission gear (6) is meshed with the ring gear (5), the transmission gear (6) penetrates through the box body (1) and is arranged outside the box body, a first motor (7) is fixedly connected with the transmission gear (6), the first motor (7) is fixedly connected to the outer side wall of the box body (1) through a fixing frame (8), the ring gear (5) is radially close to one side of a center and is fixedly connected with a brush plate (14), and bristles (15) are arranged on the brush plate (14), brush hair (15) laminate in dust removal board (4) surface sets up, brush board (14) central point puts and rotates and is connected with connecting axle (16), connecting axle (16) rotate and are connected with support frame (17), support frame (17) fixed connection in box (1) inside wall, box (1) with dust removal board (4) are close to ground one side and have seted up through hole (9), box (1) passes through hole (9) fixedly connected with pipeline (10), buggy collecting box (11) are connected to the pipeline (10) other end.
2. An air cleaning device used in a cab of a coal mine drilling rig equipment according to claim 1, characterized in that a baffle plate (12) is arranged on one side of the dust removing plate (4) close to the air inlet (2), and a lifting mechanism (13) is arranged on the baffle plate (12).
3. The air purification device for the cab of the coal mine drilling rig equipment as claimed in claim 2, wherein the lifting mechanism (13) comprises a second motor (131), the second motor (131) is fixedly connected to the outer side wall of the box body (1), the output end of the second motor (131) penetrates through a connecting plate (132) which is provided with a vertical direction and is in rotating connection with the connecting plate, the output end of the second motor (131) is fixedly connected with a driving chain wheel (133), the driving chain wheel (133) is in transmission connection with a driven chain wheel (135) through a chain (134), the driven chain wheel (135) is fixedly connected with one end of a transmission shaft (136), the other end of the transmission shaft (136) penetrates through the connecting plate (132) and is in rotating connection with the connecting plate, a fixed block (137) is fixedly connected to the chain (134), an annular plate (138) is sleeved on the fixed block (137) and is in sliding connection with the fixed block (137), the annular plate (138) is fixedly connected to the baffle plate (12).
4. The air purification device for the cab of the coal mine drilling rig equipment is characterized in that the pulverized coal collecting box (11) comprises a top plate (111), the pipeline (10) penetrates through the top plate (111) and is fixedly connected with the top plate (111) in front, a water tank (112) is detachably connected with the top plate (111), a pulverized coal filtering plate (113) is fixedly connected in the water tank (112), a water outlet pipe (114) penetrates through one side, close to the ground, of the water tank (112) and is fixedly connected with the water outlet pipe (114), and a valve is arranged in the water outlet pipe (114).
5. The air purification device for the cab of the coal mine drilling rig equipment as claimed in claim 1, wherein the fixing frame (8) comprises an annular fixing plate (81), the annular fixing plate (81) is sleeved on the first motor (7) and fixedly connected with the first motor and the first motor, the annular fixing plate (81) is fixedly connected with a connecting frame (82), and the connecting frame (82) is fixedly connected to the outer side wall of the box body (1).
6. An air cleaning device for a coal mine drilling rig equipment cab according to claim 1, characterized in that an exhaust fan is arranged in the conduit (10).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022911678.9U CN214075572U (en) | 2020-12-08 | 2020-12-08 | Air purification device used in cab of coal mine drilling machine equipment |
| DE202021106340.8U DE202021106340U1 (en) | 2020-12-08 | 2021-11-19 | Air cleaning device for the cabin of a coal mining drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022911678.9U CN214075572U (en) | 2020-12-08 | 2020-12-08 | Air purification device used in cab of coal mine drilling machine equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214075572U true CN214075572U (en) | 2021-08-31 |
Family
ID=77460792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022911678.9U Expired - Fee Related CN214075572U (en) | 2020-12-08 | 2020-12-08 | Air purification device used in cab of coal mine drilling machine equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214075572U (en) |
| DE (1) | DE202021106340U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845506A (en) * | 2023-02-16 | 2023-03-28 | 华侨大学 | Be used for stone carving sculpture environment dust collecting equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118359349B (en) * | 2024-06-20 | 2024-09-03 | 山东舍科赛斯水处理科技有限公司 | Mining watering device with purification treatment |
-
2020
- 2020-12-08 CN CN202022911678.9U patent/CN214075572U/en not_active Expired - Fee Related
-
2021
- 2021-11-19 DE DE202021106340.8U patent/DE202021106340U1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845506A (en) * | 2023-02-16 | 2023-03-28 | 华侨大学 | Be used for stone carving sculpture environment dust collecting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202021106340U1 (en) | 2021-11-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |