CN212091346U - Dust collecting equipment who possesses categorised function - Google Patents
Dust collecting equipment who possesses categorised function Download PDFInfo
- Publication number
- CN212091346U CN212091346U CN201921001164.0U CN201921001164U CN212091346U CN 212091346 U CN212091346 U CN 212091346U CN 201921001164 U CN201921001164 U CN 201921001164U CN 212091346 U CN212091346 U CN 212091346U
- Authority
- CN
- China
- Prior art keywords
- box body
- wall surface
- box
- block
- drawer
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 49
- 239000004744 fabric Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 description 7
- 239000011435 rock Substances 0.000 description 5
- 239000010893 paper waste Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to the technical field of dust removing equipment, and discloses dust removing equipment with classification function, which comprises a first box body, wherein the first box body is of an internally hollow structure, the left side wall surface of the first box body is provided with an opening, the bottom wall surface inside the first box body is fixedly provided with a bracket, and the upper wall surface of the bracket is fixedly provided with a motor, the utility model discloses a ball body is arranged, wind power is blown onto the ball body through an oblique opening, then the ball body begins to swing to the left side, then the ball body impacts the ball body, then the ball body swings left and right, then a movable block inside the ball body swings left and right, a spring is impacted back and forth, the swinging speed of the ball body is increased, and then the screen is swung by matching with the homopolar repulsion principle of a connecting block and a magnet, and the operation is repeated, then dust can fall into a drawer below, the arrangement can distinguish large-particle impurities from dust and then distinguish the large-particle impurities from the dust.
Description
Technical Field
The utility model relates to a dust collecting equipment technical field specifically is a dust collecting equipment who possesses categorised function.
Background
The factory can produce a lot of dust and large-particle impurities (such as paper scraps, leaves and the like) when processing and producing, so dust removal equipment is needed in the factory, but the dust removal equipment in the market at present cannot distinguish the dust and the large-particle impurities, and then the large-particle impurities and the dust which are distinguished are treated in a distinguishing way.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art not enough, the utility model provides a dust collecting equipment who possesses categorised function possesses advantages such as dust and wastepaper can distinguish apart, has solved dust collecting equipment on the existing market, can't distinguish dust and large granule debris apart, then carries out difference treatment to the large granule debris and the dust that distinguish apart.
(II) technical scheme
In order to realize the above-mentioned dust and wastepaper purpose of distinguishing, the utility model provides a following technical scheme: a dust removing device with a classification function comprises a first box body, wherein the first box body is of a hollow structure, an opening is formed in the left side wall surface of the first box body, a support is fixedly installed on the inner bottom wall surface of the first box body, a motor is fixedly installed on the upper side wall surface of the support, a fan blade of the type is fixed on a transmission shaft on the left side of the motor, a cross block is fixedly installed on the right side of the first box body, the inner portion of the cross block is of a hollow structure, the upper side wall surface of the cross block is flush with the upper side wall surface of the first box body, the width of the first box body is the same as that of the cross block, round holes are respectively formed in one side wall surface of the first box body, which corresponds to the cross block, the cross block is communicated with the first box body, an inclined plate is fixedly installed on the inner bottom wall surface of the cross block, the inclined plate is, the upper wall surface of the second box body is flush with the upper wall surface of the transverse block, the width of the second box body is the same as that of the transverse block, a round hole is respectively formed in one side wall surface of the second box body corresponding to the transverse block, the second box body is communicated with the transverse block, the inside of the second box body is of a hollow structure, two holes are formed in the front of the second box body, the two holes formed in the second box body are communicated with the inside of the second box body, two grooves are respectively formed in the left and right inner walls of the second box body, the two grooves in the same side wall surface of the second box body vertically correspond to each other, two drawers are arranged in the second box body, lugs are respectively and fixedly mounted on the left and right side walls of each drawer, each lug is a square block, the width of each lug is the same as that of a vertical groove, and the drawers are movably connected with the second box body through, the two drawers correspond to each other up and down, the drawers are of hollow structures, the hollow parts inside the drawers above penetrate through the upper wall surface and the lower wall surface of the drawer above, the hollow parts of the drawers below penetrate through the upper wall surface of the drawer below, the drawer above is internally and movably provided with a screen, the screen is arc-shaped, the left side and the right side of the screen are respectively and fixedly provided with connecting blocks, the connecting blocks are square blocks, the two connecting blocks correspond to each other left and right, the connecting block on the right side is movably connected with the inner wall on the right side of the box body II through a hinge, the rectangular block is fixedly arranged on the wall on the left side of the connecting block on the left side, a vertical groove is formed in the inner wall on the left side of the box body II, the width of the vertical groove is the same as that of the rectangular block, the connecting block on the left side is movably connected with the, the lower wall surface of the left connecting block is made of a magnet anode, the upper wall surface of the magnet is a magnet anode, the magnet corresponds to the left connecting block up and down, the upper wall surface of the inclined plate, the left wall surface of the box body II and the left wall surface of the upper drawer are all provided with inclined openings, a filter screen is arranged in the opening on the inclined plate and is flush with the upper wall surface of the inclined plate, the lower end of the inclined opening faces towards the screen mesh of the screen mesh, a transverse plate is fixedly arranged on the left inner wall of the upper drawer, a shaking rod is movably arranged on the lower wall surface of the transverse plate through a rotating shaft, a round ball is fixedly arranged on the lower wall surface of the shaking rod, the position of the round ball corresponds to the inclined opening on the upper drawer left and right, a plastic rod is fixedly arranged on the upper wall surface of the screen mesh, a ball body is fixedly arranged above the plastic rod, the ball body is positioned corresponding to the ball body left and right, springs are fixedly arranged on the left wall surface and the right wall surface of the long groove respectively, and a movable block is arranged in the long groove.
Preferably, the opening is a circular hole, and the opening is communicated with the inside of the first box body.
Preferably, the support is formed by combining an upright rectangular block and a transverse rectangular block.
Preferably, the transverse block is a transverse rectangular block.
Preferably, the recess is a rectangular slot.
(III) advantageous effects
Compared with the prior art, the utility model provides a dust collecting equipment who possesses categorised function possesses following beneficial effect:
1. this dust collecting equipment who possesses categorised function, through having set up the spheroid, wind-force blows to the ball through the bevel connection on, then the ball begins to sway to the left side, then the ball strikes the spheroid, then the spheroid sways about, then the inside movable block of spheroid rocks about, make a round trip to strike the spring, increase spheroidal speed of swaying, the homopolar repellent's of deuterogamying connecting block and magnet principle makes the screen cloth rock, so relapse, then the dust is along with the upper and lower activity of screen cloth, can fall into the drawer of below through the hole on the screen cloth, such setting can distinguish large granule debris and dust apart, then do difference processing to large granule debris and dust.
2. This dust collecting equipment who possesses classification function, through having set up swash plate and bevel connection, the dust can get into the top drawer through the bevel connection, then during the piece of great granule can get into the top drawer through the swash plate, such setting can be distinguished at dust and piece entering top drawer in-process, has made things convenient for subsequent process of classifying in the drawer.
3. This dust collecting equipment who possesses categorised function through having set up the drawer, and two drawers can be separately collected dust and large granule debris, then convenient subsequent processing to wastepaper and large granule debris.
Drawings
FIG. 1 is a schematic perspective view of a dust removing apparatus;
FIG. 2 is a three-dimensional exploded view of the upper drawer
FIG. 3 is a schematic front view of a dust removing apparatus;
fig. 4 is a partially enlarged view of a portion a in fig. 3.
In the figure: 1 box body I, 2 openings, 3 transverse blocks, 4 box bodies II, 5 drawers, 6 supports, 7 motors, 8 round holes, 9 inclined plates, 10 grooves, 11 convex blocks, 12 vertical grooves, 13 connecting blocks, 14 rectangular blocks, 15 magnets, 16 screens, 17 transverse plates, 18 inclined openings, 19 rocking rods, 20 round balls, 21 plastic rods, 22 spheres, 23 elongated slots, 24 springs and 25 movable blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a dust removing device with a classifying function comprises a box body 1, wherein the box body 1 is of a hollow structure, the left side wall surface of the box body 1 is provided with an opening 2, the opening 2 is a circular hole, the opening 2 is communicated with the inside of the box body 1, a bracket 6 is fixedly arranged on the inner bottom wall surface of the box body 1, the bracket 6 is formed by combining a vertical rectangular block and a transverse rectangular block, as shown in fig. 3, the upper wall surface of the bracket 6 is fixedly provided with a motor 7, a transmission shaft on the left side of the motor 7 is fixedly provided with a fan blade, the fan blade arranged on the transmission shaft of the motor 7 is reversely arranged, the fan blade blows to the right side, the right side of the box body 1 is fixedly provided with a transverse block 3, the transverse block 3 is a transverse rectangular block, and the inside of the transverse block 3 is of a hollow structure, the upper wall surface of the transverse block 3 is flush with the upper wall surface of the box body I1, the width of the box body I1 is the same as that of the transverse block 3, round holes 8 are respectively formed in one side wall surface of the box body I1 corresponding to the transverse block 3, the transverse block 3 is communicated with the box body I1, an inclined plate 9 is fixedly installed on the inner bottom wall surface of the transverse block 3, the inclined plate 9 is a triangular plate, the upper wall surface of the inclined plate 9 is arc-shaped, the right side of the transverse block 3 is fixedly installed with a box body II 4, the upper wall surface of the box body II 4 is flush with the upper wall surface of the transverse block 3, the width of the box body II 4 is the same as that of the transverse block 3, the round holes 8 are respectively formed in one side wall surface of the box body II 4 corresponding to the transverse block 3, the box body II 4 is communicated with the transverse block 3, the inner part of the box body II 4 is of a hollow, two holes formed in the second box body 4 are communicated with the inside of the second box body 4, two grooves 10 are respectively formed in the left inner wall and the right inner wall of the second box body 4, the grooves 10 are rectangular grooves, the two grooves 10 in the same side wall surface of the second box body 4 vertically correspond to each other, the grooves 10 in the second box body 4 horizontally correspond to each other, two drawers 5 are arranged in the second box body 4, protruding blocks 11 are respectively and fixedly mounted on the left side wall and the right side wall of each drawer 5, the protruding blocks 11 are square blocks, the width of each protruding block 11 is the same as that of each vertical groove 10, the drawers 5 are movably connected with the second box body 4 through the clamping of the protruding blocks 11 and the grooves 10, the two drawers 5 vertically correspond to each other, the inside of each drawer 5 is of a hollow structure, the hollow part in the upper drawer 5 penetrates through the upper wall surface and the lower wall surface of the upper drawer 5, and the hollow part in, the upper side is movably provided with a screen 16 in the drawer 5, the screen 16 is arc-shaped, the left side and the right side of the screen 16 are respectively fixedly provided with a connecting block 13, the connecting block 13 is a square block, the two connecting blocks 13 correspond left and right, the right side connecting block 13 is movably connected with the right side inner wall of the box body II 4 through a hinge, the left side wall surface of the connecting block 13 is fixedly provided with a rectangular block 14, the left side inner wall of the box body II 4 is provided with a vertical groove 12, the width of the vertical groove 12 is the same as that of the rectangular block 14, the left side connecting block 13 is movably connected with the left side inner wall of the box body II 4 through the rectangular block 14 and the vertical groove 12, a magnet 15 is fixedly arranged in the left side inner wall of the box body II 4, the lower wall surface of the left side connecting block 13 is made of a magnet anode, the upper wall surface of the magnet 15 is a, inclined openings 18 are formed in the upper wall surface of the inclined plate 9, the left side wall surface of the box body II 4 and the left side wall surface of the upper drawer 5, when the bottom wall surface of a left side projection 11 of the upper drawer 5 is attached to the bottom inner wall of the left side groove 10, the three inclined openings 18 are communicated with each other, a filter screen is arranged in an opening in the inclined plate 9, the caliber of the filter screen can only allow dust to pass through, the filter screen is flush with the upper wall surface of the inclined plate 9, the lower end of the inclined opening 18 faces to a screen 16 of the screen 16, a transverse plate 17 is fixedly arranged on the left side inner wall of the upper drawer 5, a shaking rod 19 is movably arranged on the lower wall surface of the transverse plate 17 through a rotating shaft, a round ball 20 is fixedly arranged on the lower wall surface of the shaking rod 19, the position of the round ball 20 corresponds to the left and right of the inclined opening, a ball body 22 is fixedly arranged above the plastic rod 21, an elongated slot 23 is formed in the ball body 22, the elongated slot 23 is a rectangular slot, the ball body 22 corresponds to the ball 20 in the left-right direction, springs 24 are fixedly arranged on the left wall surface and the right wall surface of the elongated slot 23 respectively, a movable block 25 is arranged in the elongated slot 23, firstly, a power supply is turned on, the motor 7 drives the fan blades to rotate, the fan blades blow air to the right side, so that the fan blades can generate adsorption force to the left side, then the fan blades rotate to suck dust and paper scraps into the box body 1 through the opening 2, then the dust and the paper scraps can move to the right side, then the dust and the paper scraps can enter the upper drawer 5 through the inclined opening 18 in the inclined plate 9, then larger scraps can fall into the upper drawer 5 through the inclined plate 9, and then wind power is blown onto the ball body 20 through the inclined, then the ball 20 begins to rock to the left side, then ball 20 strikes spheroid 22, then spheroid 22 sways from side to side, then the inside movable block 25 of spheroid 22 rocks from side to side, makes a round trip to strike spring 24, increases the rocking speed of spheroid 22, and the principle of the homopolar repulsion of cooperation connecting block 13 and magnet 15 makes screen cloth 16 rock again, so relapse, then the dust can fall into in the drawer 5 of below through the hole on the screen cloth 16 along with the up-and-down motion of screen cloth 16.
When in use, the utility model is used,
firstly, a power supply is turned on, a motor 7 drives fan blades to rotate, and because the fan blades blow air to the right side, the fan blades can generate adsorption force to the left side, then the fan blades rotate to suck dust and paper scraps into a box body 1 through an opening 2, then the dust and the paper scraps can move to the right side, then the dust and the paper scraps can enter an upper drawer 5 through an inclined opening 18 on an inclined plate 9, then larger scraps can fall into the upper drawer 5 through the inclined plate 9, then wind power is blown onto a round ball 20 through the inclined opening 18, then the round ball 20 starts to swing to the left side, then the round ball 20 impacts a ball body 22, then the ball body 22 swings left and right, then a movable block 25 in the ball body 22 swings left and right to impact a spring 24 back and forth to increase the swing speed of the ball body 22, and then the screen 16 swings by matching with the homopolar repulsion principle of a connecting block 13 and a magnet, this is repeated, and then the dust falls into the drawer 5 below through the holes on the screen 16 as the screen 16 moves up and down.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The dust removing equipment with the classifying function comprises a first box body (1), wherein the first box body (1) is of a hollow structure, an opening (2) is formed in the left side wall surface of the first box body (1), a support (6) is fixedly installed on the inner bottom wall surface of the first box body (1), a motor (7) is fixedly installed on the upper wall surface of the support (6), a fan blade of the type is fixed on a transmission shaft on the left side of the motor (7), a transverse block (3) is fixedly installed on the right side of the first box body (1), a second box body (4) is fixedly installed on the right side of the transverse block (3), two holes are formed in the front of the second box body (4), the two holes formed in the second box body (4) are communicated with the inside of the second box body (4), two drawers (5) are arranged in the second box body (4), the two drawers (5) correspond up and down, and the inside of the drawers, the hollow part in the upper drawer (5) penetrates through the upper wall surface and the lower wall surface of the upper drawer (5), the hollow part in the lower drawer (5) penetrates through the upper wall surface of the lower drawer (5), and a screen (16) is movably arranged in the upper drawer (5);
the screen cloth (16) is arc-shaped, the left side and the right side of the screen cloth (16) are respectively fixedly provided with a connecting block (13), the connecting blocks (13) are square blocks, the two connecting blocks (13) correspond to each other left and right, the right side connecting block (13) is movably connected with the inner wall of the right side of the box body II (4) through hinges, the left side wall surface of the connecting block (13) on the left side is fixedly provided with a rectangular block (14), the inner wall of the left side of the box body II (4) is provided with a vertical groove (12), the width of the vertical groove (12) is the same as that of the rectangular block (14), and the left side connecting block (13) is movably connected with the inner wall of the left side of the box body II (4) through the rectangular block (14;
a magnet (15) is fixedly mounted in the inner wall of the left side of the second box body (4), the lower wall surface of the left side connecting block (13) is made of a magnet anode, the upper wall surface of the magnet (15) is a magnet anode, the magnet (15) vertically corresponds to the left side connecting block (13), an inclined plate (9) is fixedly mounted on the inner bottom wall surface of the transverse block (3), inclined openings (18) are formed in the upper wall surface of the inclined plate (9), the left side wall surface of the second box body (4) and the left side wall surface of the upper drawer (5), and a filter screen is arranged in an opening in the inclined plate (9);
a transverse plate (17) is fixedly installed on the inner wall of the left side of the drawer (5) above, a swinging rod (19) is movably installed on the lower wall surface of the transverse plate (17) through a rotating shaft, a round ball (20) is fixedly installed on the lower wall surface of the swinging rod (19), the position of the round ball (20) corresponds to the left and right of an inclined opening (18) in the upper drawer (5), a plastic rod (21) is fixedly installed on the upper wall surface of the screen (16), a ball body (22) is fixedly installed above the plastic rod (21), an elongated slot (23) is formed in the ball body (22), the elongated slot (23) is a rectangular slot, the position of the ball body (22) corresponds to the left and right of the position of the round ball (20), springs (24) are fixedly installed on the left and right wall surfaces of the elongated slot (23), and a movable block (25) is arranged in the elongated slot (23.
2. The dust removing apparatus with a classifying function according to claim 1, wherein: the inside of horizontal piece (3) is hollow structure, the top wall of horizontal piece (3) flushes with the top wall of box (1), and the width of box (1) is the same with the width of horizontal piece (3), round hole (8) have been seted up respectively on one side wall that box (1) and horizontal piece (3) correspond, horizontal piece (3) and box (1) intercommunication.
3. The dust removing apparatus with a classifying function according to claim 1, wherein: the inclined plate (9) is a triangular plate, and the upper wall surface of the inclined plate (9) is arc-shaped.
4. The dust removing apparatus with a classifying function according to claim 1, wherein: the top wall of box two (4) flushes with the top wall of crosspiece (3), and the width of box two (4) is the same with the width of crosspiece (3), round hole (8) have been seted up respectively on the one side wall that box two (4) and crosspiece (3) correspond, box two (4) and crosspiece (3) intercommunication, the inside of box two (4) is hollow structure.
5. The dust removing apparatus with a classifying function according to claim 1, wherein: two grooves (10) are formed in the left inner wall and the right inner wall of the second box body (4) respectively, the two grooves (10) in the same side wall face in the second box body (4) correspond to each other up and down, and the grooves (10) in the second box body (4) correspond to each other left and right.
6. The dust removing device with a classifying function according to claim 5, wherein: the left side wall and the right side wall of the drawer (5) are respectively and fixedly provided with a convex block (11), the convex blocks (11) are square blocks, the width of the convex blocks (11) is the same as that of the vertical grooves (12), and the convex blocks (11) are movably connected with the grooves (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001164.0U CN212091346U (en) | 2019-06-28 | 2019-06-28 | Dust collecting equipment who possesses categorised function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001164.0U CN212091346U (en) | 2019-06-28 | 2019-06-28 | Dust collecting equipment who possesses categorised function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212091346U true CN212091346U (en) | 2020-12-08 |
Family
ID=73621532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921001164.0U Active CN212091346U (en) | 2019-06-28 | 2019-06-28 | Dust collecting equipment who possesses categorised function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212091346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152612A (en) * | 2021-04-23 | 2021-07-23 | 邵梓茹 | Scenic spot is with preventing wind portable lavatory |
| CN113350943A (en) * | 2021-06-07 | 2021-09-07 | 湖北理工学院 | Dust removal assembly and dust removal device |
-
2019
- 2019-06-28 CN CN201921001164.0U patent/CN212091346U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152612A (en) * | 2021-04-23 | 2021-07-23 | 邵梓茹 | Scenic spot is with preventing wind portable lavatory |
| CN113350943A (en) * | 2021-06-07 | 2021-09-07 | 湖北理工学院 | Dust removal assembly and dust removal device |
| CN113350943B (en) * | 2021-06-07 | 2022-05-31 | 湖北理工学院 | Dust removal components and dust removal devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212091346U (en) | Dust collecting equipment who possesses categorised function | |
| CN108927323A (en) | A kind of working method of sandstone screening plant for building | |
| CN101153738A (en) | Air outlet structure of air conditioner | |
| CN209772681U (en) | Aluminum skimming vibration screening machine | |
| CN108097571B (en) | Irregular shaking type sand screening device | |
| CN112242653A (en) | Anti-swing safety distribution box structure for ship | |
| CN112371309B (en) | Crushing equipment for recycling environment-friendly building materials and working method thereof | |
| CN214718321U (en) | High-efficient screening sand device for construction | |
| CN216180886U (en) | Cutting machine for polymer foam material with waste recovery function | |
| CN214021977U (en) | Wood fiber winnowing machine for producing medium-high density fiberboard | |
| CN213649237U (en) | Garden waterscape platform with anti-skidding function | |
| CN206351112U (en) | A kind of new sand sieving machine | |
| CN216391915U (en) | Standard distortion coefficient synthesizer | |
| CN213890802U (en) | Plastic granules sieve separator | |
| CN211836653U (en) | Gravel and sand dewatering device for building | |
| CN210704202U (en) | Burnishing device for setting equipment of artificial flower | |
| CN113231302A (en) | Semi-automatic pearl sieve separator | |
| CN218873603U (en) | Forge processing garbage collection device | |
| CN112318567A (en) | Cutting device for food machinery | |
| CN219856608U (en) | Engraving device of plank engraver | |
| CN217127193U (en) | Novel magnetic coagulation filtering device | |
| CN219405126U (en) | Mechanism for foaming polypropylene | |
| CN219309287U (en) | Multistage sieving mechanism is used in production of carbon composite material | |
| CN205436566U (en) | Ore deposit hillstone expects high -frequency vibration dust collecting equipment | |
| CN112354904A (en) | Non-woven fabrics processing is with dustproof coiling material device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |