CN112915796B - Membrane separation equipment for volatile organic compounds - Google Patents
Membrane separation equipment for volatile organic compounds Download PDFInfo
- Publication number
- CN112915796B CN112915796B CN202110086312.9A CN202110086312A CN112915796B CN 112915796 B CN112915796 B CN 112915796B CN 202110086312 A CN202110086312 A CN 202110086312A CN 112915796 B CN112915796 B CN 112915796B
- Authority
- CN
- China
- Prior art keywords
- plate
- alcohol
- block
- swinging
- wall
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
- B01D63/063—Tubular membrane modules with membranes on a surface of a support tube on the inner surface thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a volatile organic compound membrane separation device which structurally comprises a top cover, a separator and a knob, wherein the knob is arranged at the upper end position of the top cover, the separator is in threaded connection with the lower end of the top cover, the separator can swing downwards along a frame body through thrust generated when alcohol is guided downwards, so that the alcohol can be discharged downwards through a gap between a swing plate and the inner wall of the frame body, an upward thrust is generated through an elastic sheet, the swing plate can push the swing plate to swing upwards to reset when the thrust of the alcohol is lost, the swing plate can block the alcohol, the situation that the alcohol is discharged reversely through the inside after being volatilized is effectively avoided, the push-assisting sheet generates continuous outward thrust on the outer touch plate, the outer touch plate can extrude the inner wall of the frame, and therefore the alcohol in the frame can be extruded downwards.
Description
Technical Field
The invention relates to the field of membrane separation equipment, in particular to volatile organic compound membrane separation equipment.
Background
The volatile organic compound membrane separator is mainly used for separating a volatile organic compound solid-liquid mixture, the volatile organic compound solid-liquid mixture is introduced into the volatile organic compound membrane separator, the sealing cover is screwed to prevent the volatile organic compound solid-liquid mixture from volatilizing into the outside air, and finally the volatile organic compound solid-liquid mixture liquid can be introduced below through the internal separation layer for storage, and based on the above description, the inventor finds that the existing volatile organic compound membrane separator mainly has the following defects, for example:
because the volatilization speed of alcohol is fast, if the mixture of alcohol and solid is separated inside the volatile organic compound membrane separator, the situation that the volatilized alcohol is easy to enter the outside air when the sealing cover of the volatile organic compound membrane separator is opened due to the fact that the alcohol is filtered to the lower part of the separation layer and is reversely led out through the separation layer is easy to occur.
Disclosure of Invention
In order to solve the problems, the invention provides a volatile organic compound membrane separation device.
In order to realize the purpose, the invention is realized by the following technical scheme: a volatile organic compound membrane separation device structurally comprises a top cover, a separator and a knob, wherein the knob is installed at the upper end of the top cover, and the separator is in threaded connection with the lower end of the top cover; the separator comprises a separation layer, an outer tube and a lower connecting tube, wherein the separation layer is fixedly embedded in the inner position of the outer tube, and the lower connecting tube is welded at the bottom position of the outer tube.
As a further optimization of the invention, the separation layer comprises a guide-in block, a lower row of cavities, a plate body and an external frame, the guide-in block is embedded in the inner position of the lower row of cavities, the lower row of cavities and the plate body are of an integrated structure, the plate body penetrates between the two external frames, and the upper end of the guide-in block is of an arc concave surface structure.
As a further optimization of the invention, the lead-in block comprises a frame body, elastic pieces and swinging plates, wherein the elastic pieces are installed between the bottom of the swinging plates and the inner side of the frame body, the swinging plates are hinged with the inner wall of the frame body, the number of the swinging plates is four, and two of the swinging plates are uniformly distributed in a staggered manner on the inner walls of the left side and the right side of the frame body.
As a further optimization of the invention, the swinging plate comprises a plate surface, a connecting block, a complex elastic sheet and a vibrating block, wherein the connecting block is fixed at the upper end of the inner wall of the plate surface, the complex elastic sheet is suspended on the side of the connecting block, the vibrating block is connected with the tail end of the complex elastic sheet, and the vibrating block is made of alloy steel with higher density.
In a further preferred embodiment of the present invention, the guide block includes a pull-back strip, a frame, a guide plate, and an extrusion mechanism, the pull-back strip is mounted between the extrusion mechanism and an inner wall of the guide plate, the guide plate is fixed to an inner wall of the frame, the extrusion mechanism is movably engaged with a middle portion of the guide plate, and the extrusion mechanism can be lowered by sliding down along the guide plate by a thrust force generated by alcohol on the extrusion mechanism.
As a further optimization of the invention, the extrusion mechanism comprises a middle block, a linkage plate, two boosting sheets and two outer touch plates, wherein the linkage plate is movably clamped with the inside of the middle block, the boosting sheets are fixed between the inner wall of the outer touch plates and the outer surface of the middle block, the inner sides of the outer touch plates are attached to the outer sides of the linkage plate, and the two outer touch plates are uniformly and symmetrically distributed on the left side and the right side of the middle block through the matching of the linkage plate.
As a further optimization of the invention, the outer touch plate comprises a carrying plate, a carrying plate and outer convex blocks, the inner side of the carrying plate is attached to the outer side of the carrying plate, the outer convex blocks are fixed on the outer surface of the carrying plate, and five outer convex blocks are uniformly distributed on the outer side of the carrying plate in a fan shape.
The invention has the following beneficial effects:
1. through the thrust to producing when alcohol is led in downwards, can make and swing downwards along the framework to make alcohol discharge downwards through the clearance between swing board and the framework inner wall, rethread elastic sheet produces ascending thrust, can make the swing board promote the swing board when losing the thrust of alcohol and go up the pendulum and reset, thereby make the swing board can block alcohol, the effectual back of having avoided alcohol to volatilize can be through the reverse exhaust condition in inside.
2. Produce through the boosting piece and last outside thrust to outer touch panel, can make outer touch panel produce the extrusion to the inner wall of frame, so make the inside alcohol of frame can be extruded downwards, if effectual inside alcohol of having avoided the piece of leading clears away in time, then can make the inside alcohol of piece of leading upwards volatilize the clean condition.
Drawings
FIG. 1 is a schematic structural diagram of a membrane separation device for volatile organic compounds according to the present invention.
Fig. 2 is a schematic structural view of a front section of the separator of the present invention.
FIG. 3 is a schematic structural diagram of a front cross section of a separation layer according to the present invention.
Fig. 4 is a schematic structural view of a front half section of a lower cavity of the invention.
FIG. 5 is a front half-sectional view of the swing plate of the present invention.
FIG. 6 is a front half-section structural diagram of the inlet block of the present invention.
Fig. 7 is a front half-section structural schematic diagram of the extrusion mechanism of the present invention.
Fig. 8 is a schematic structural diagram of a front cross section of the external contact plate of the present invention.
In the figure: the device comprises a top cover-1, a separator-2, a knob-3, a separation layer-21, an outer pipe-22, a lower connecting pipe-23, a lead-in block-a 1, a lower discharge cavity-a 2, a plate body-a 3, an external frame-a 4, a frame body-a 11, an elastic sheet-a 12, a swinging plate-a 13, a plate surface-b 1, a connecting block-b 2, a complex elastic sheet-b 3, a vibrating block-b 4, a pull-back strip-c 1, a frame-c 2, a guide plate-c 3, an extrusion mechanism-c 4, a middle block-c 41, a linkage plate-c 42, a boosting sheet-c 43, an external touch plate-c 44, a carrying plate-d 1, a carrying plate-d 2 and an external convex block-d 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-5:
the invention provides a volatile organic compound membrane separation device which structurally comprises a top cover 1, a separator 2 and a knob 3, wherein the knob 3 is arranged at the upper end position of the top cover 1, and the separator 2 is in threaded connection with the lower end of the top cover 1; the separator 2 comprises a separation layer 21, an outer tube 22 and a lower connecting tube 23, wherein the separation layer 21 is embedded in the outer tube 22, and the lower connecting tube 23 is welded at the bottom of the outer tube 22.
The separating layer 21 comprises an introducing block a1, a lower row of cavities a2, a plate body a3 and an external frame a4, the introducing block a1 is embedded in the inner position of the lower row of cavities a2, the lower row of cavities a2 and the plate body a3 are of an integrated structure, the plate body a3 penetrates between the two external frames a4, the upper end of the introducing block a1 is of an arc concave structure, and alcohol can be introduced into the introducing block a1 for conduction.
The guide block a1 comprises a frame body a11, elastic pieces a12 and swing plates a13, wherein the elastic pieces a12 are installed between the bottom of the swing plates a13 and the inner side of the frame body a11, the swing plates a13 are hinged with the inner wall of the frame body a11, four swing plates a13 are arranged, two of the four swing plates a13 are uniformly distributed in a staggered manner on the inner walls of the left side and the right side of the frame body a11, the swing plates a13 can swing downwards along the frame body a11 through the thrust generated by alcohol on the swing plates a13, so that the alcohol can be discharged downwards through the gap between the swing plates a13 and the frame body a11, and the swing plates a13 can block the alcohol which is volatilized and ascended.
Wherein, swing board a13 includes face b1, links up piece b2, compound shell fragment b3, vibrating mass b4, it is fixed in face b 1's inner wall upper end position to link up piece b2, compound shell fragment b3 hangs on linking up the avris of piece b2, vibrating mass b4 is connected with compound shell fragment b 3's end, vibrating mass b4 adopts the great alloy steel material of density, and through the power of getting rid of that the mechanism swing produced, can make vibrating mass b4 produce the striking vibration to face b 1's inner wall under compound shell fragment b 3's cooperation to can accelerate the flow velocity of face b1 upper surface alcohol.
The detailed using method and function of the embodiment are as follows:
in the present invention, the separation layer 21 inside the separator 2 can separate the mixture of alcohol and solid, so that alcohol can be introduced into the introduction block a1, so that the introduction block a1 can introduce alcohol downward below the separation layer 21, and c13 can swing downward along the frame a11 by the thrust generated to c13 when alcohol is introduced downward, so that alcohol can be discharged downward through the gap between the swing plate a13 and the inner wall of the frame a11, and further, the elastic piece a12 generates upward thrust, so that the swing plate a13 can push the swing plate a13 to swing upward and return when the thrust of alcohol is lost, so that the swing plate a13 can block alcohol, and the vibration block b4 can generate impact vibration to the inner wall of the plate b1 by the cooperation of the return spring b3 by the swinging force generated by the swinging of the swing plate a13, so that the discharge speed of alcohol on the upper surface of the plate b1 can be accelerated, and the situation that alcohol can be discharged reversely through the inside of the separator 12 after the alcohol volatilizes can be effectively avoided.
Example 2
As shown in fig. 6-8:
the guide block a1 comprises a pull-back strip c1, a frame c2, a guide plate c3 and an extrusion mechanism c4, the pull-back strip c1 is installed between the inner walls of the extrusion mechanism c4 and the guide plate c3, the guide plate c3 is fixed on the inner wall of the frame c2, the extrusion mechanism c4 is movably clamped with the middle of the guide plate c3, the extrusion mechanism c4 can slide downwards along the guide plate c3 to descend through the thrust generated by alcohol on the extrusion mechanism c4, and the extrusion mechanism c4 which is not pushed by the alcohol can be pulled to ascend and reset through the pull-back strip c 1.
The extrusion mechanism c4 comprises a middle block c41, a linkage plate c42, two boosting sheets c43 and an outer contact plate c44, the linkage plate c42 is movably clamped with the inside of the middle block c41, the boosting sheets c43 are fixed between the inner wall of the outer contact plate c44 and the outer surface of the middle block c41, the inner side of the outer contact plate c44 is attached to the outer side of the linkage plate c42, the two outer contact plates c44 are arranged and are uniformly distributed on the left side and the right side of the middle block c41 in a symmetrical mode through the matching of the linkage plate c42, the boosting sheets c43 generate continuous outward thrust on the outer contact plate c44, and the outer side of the outer contact plate c44 can extrude the inner wall of an object.
Wherein, outer touch panel c44 is including carrying board d1, accepting board d2, outer lug d3, carry board d 1's inboard and the outside of accepting board d2 and laminate mutually, outer lug d3 is fixed in the surface position of accepting board d2, outer lug d3 is equipped with five, and evenly is fan-shaped distribution in the outside of accepting board d2, can take out alcohol through the recess that the drop produced between outer lug d3 and the carrying board d 1.
The detailed use method and action of the embodiment are as follows:
in the invention, because the internal gap of the guiding block a1 still contains part of alcohol after the alcohol is guided, if the alcohol is not cleaned in time, the alcohol in the guiding block a1 can volatilize completely upwards, the pressure generated by the alcohol in the guiding block a1 on the extrusion mechanism c4 can make the extrusion mechanism c4 slide and contract downwards along the guide plate c3, the extrusion mechanism c4 losing the alcohol thrust can be pulled by the pull-back strip c1 to slide and reset along the guide plate c3, the pushing-assisting sheet c43 generates continuous outward thrust on the external contact plate c44, the external contact plate c44 can press the inner wall of the frame c2, so the alcohol in the frame c2 can be extruded downwards, more alcohol can be taken out through the groove generated by the fall between the external convex block d3 and the carrying plate d1, and the collected alcohol can be guided and discharged downwards when the external contact plate c44 contracts, and the condition that the alcohol in the guiding block a1 volatilizes completely can be effectively avoided if the alcohol in time is not cleaned.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (1)
1. The utility model provides a volatile organic compounds membrane separation equipment which the structure includes top cap (1), separator (2), knob (3), the upper end position in top cap (1), its characterized in that are installed in knob (3): the separator (2) is in threaded connection with the lower end of the top cover (1);
the separator (2) comprises a separation layer (21), an outer pipe (22) and a lower connecting pipe (23), wherein the separation layer (21) is fixedly embedded in the inner position of the outer pipe (22), and the lower connecting pipe (23) is welded at the bottom position of the outer pipe (22);
the separation layer (21) comprises a guide block (a 1), a lower-row cavity (a 2), a plate body (a 3) and an external frame (a 4), the guide block (a 1) is embedded in the inner position of the lower-row cavity (a 2), the lower-row cavity (a 2) and the plate body (a 3) are of an integrated structure, and the plate body (a 3) penetrates between the two external frames (a 4);
the guide block (a 1) comprises a frame body (a 11), an elastic piece (a 12) and a swinging plate (a 13), wherein the elastic piece (a 12) is installed between the bottom of the swinging plate (a 13) and the inner side of the frame body (a 11), and the swinging plate (a 13) is hinged with the inner wall of the frame body (a 11);
the swing plate (a 13) comprises a plate surface (b 1), a connecting block (b 2), a complex elastic sheet (b 3) and a vibrating block (b 4), the connecting block (b 2) is fixed at the upper end of the inner wall of the plate surface (b 1), the complex elastic sheet (b 3) is suspended on the side of the connecting block (b 2), and the vibrating block (b 4) is connected with the tail end of the complex elastic sheet (b 3);
the guide block (a 1) comprises a pull-back strip (c 1), a frame (c 2), a guide plate (c 3) and an extrusion mechanism (c 4), the pull-back strip (c 1) is installed between the extrusion mechanism (c 4) and the inner wall of the guide plate (c 3), the guide plate (c 3) is fixed at the position of the inner wall of the frame (c 2), and the extrusion mechanism (c 4) is movably clamped with the middle of the guide plate (c 3);
the extrusion mechanism (c 4) comprises a middle block (c 41), a linkage plate (c 42), a boosting sheet (c 43) and an outer contact plate (c 44), the linkage plate (c 42) is movably clamped with the inside of the middle block (c 41), the boosting sheet (c 43) is fixed between the inner wall of the outer contact plate (c 44) and the outer surface of the middle block (c 41), and the inner side of the outer contact plate (c 44) is attached to the outer side of the linkage plate (c 42);
the outer touch plate (c 44) comprises a carrying plate (d 1), a bearing plate (d 2) and an outer convex block (d 3), the inner side of the carrying plate (d 1) is attached to the outer side of the bearing plate (d 2), and the outer convex block (d 3) is fixed on the outer surface of the bearing plate (d 2); the separation layer (21) in the separator (2) can separate the mixture of alcohol and solid, so that the alcohol can be introduced into the introduction block (a 1), the introduction block (a 1) can introduce the alcohol downwards to the lower part of the separation layer (21), the swinging plate (a 13) can swing downwards along the frame body (a 11) through the thrust generated on the swinging plate (a 13) when the alcohol is introduced downwards, so that the alcohol can be discharged downwards through a gap between the swinging plate (a 13) and the inner wall of the frame body (a 11), the elastic sheet (a 12) generates an upward thrust, the swinging plate (a 13) can push the swinging plate (a 13) to swing upwards to reset when the thrust of the alcohol is lost, so that the swinging plate (a 13) can block the alcohol, the swinging plate (a 13) can generate a throwing force through swinging of the swinging plate (a 13), the swinging block (b 4) can impact the inner wall of the plate (b 1) under the matching of the surface (b 3) of the elastic sheet, the vibrating plate (a) can generate a throwing force to accelerate the impact on the inner wall of the plate (b 1) to discharge of the alcohol, and the alcohol can be discharged through the vibrating plate (b 12) at an effective speed, and the situation that the alcohol can be discharged through the reverse volatilization of the upper surface (b 12) can be avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086312.9A CN112915796B (en) | 2021-01-22 | 2021-01-22 | Membrane separation equipment for volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110086312.9A CN112915796B (en) | 2021-01-22 | 2021-01-22 | Membrane separation equipment for volatile organic compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112915796A CN112915796A (en) | 2021-06-08 |
| CN112915796B true CN112915796B (en) | 2022-12-06 |
Family
ID=76164574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110086312.9A Active CN112915796B (en) | 2021-01-22 | 2021-01-22 | Membrane separation equipment for volatile organic compounds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112915796B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK572282A (en) * | 1981-12-24 | 1983-06-25 | Leipzig Chemieanlagen | Flat membrane-SEPARATING APPARATUS |
| CN106272648A (en) * | 2016-08-30 | 2017-01-04 | 安徽安特食品股份有限公司 | Reclaimer cut by a kind of strip solid alcohol |
| CN210778089U (en) * | 2019-11-29 | 2020-06-16 | 宁波合盛磁业有限公司 | Oil bath demagnetization equipment |
| CN211725360U (en) * | 2019-12-10 | 2020-10-23 | 宁夏红枸杞产业有限公司 | A retrieve filtration system for containing volatile composition feed liquid |
| CN111825207A (en) * | 2020-07-13 | 2020-10-27 | 广州佳优华信息科技有限公司 | Biological filtration equipment |
| CN112156538A (en) * | 2020-10-12 | 2021-01-01 | 何国容 | Ecological treatment facility of domestic sewage |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207361071U (en) * | 2017-06-27 | 2018-05-15 | 辽宁隆舸清道夫环保科技有限公司 | A kind of solid-liquid separating municipal garbage collecting box |
| CN111592911A (en) * | 2020-05-31 | 2020-08-28 | 黄海群 | Oil fluid separator |
-
2021
- 2021-01-22 CN CN202110086312.9A patent/CN112915796B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK572282A (en) * | 1981-12-24 | 1983-06-25 | Leipzig Chemieanlagen | Flat membrane-SEPARATING APPARATUS |
| CN106272648A (en) * | 2016-08-30 | 2017-01-04 | 安徽安特食品股份有限公司 | Reclaimer cut by a kind of strip solid alcohol |
| CN210778089U (en) * | 2019-11-29 | 2020-06-16 | 宁波合盛磁业有限公司 | Oil bath demagnetization equipment |
| CN211725360U (en) * | 2019-12-10 | 2020-10-23 | 宁夏红枸杞产业有限公司 | A retrieve filtration system for containing volatile composition feed liquid |
| CN111825207A (en) * | 2020-07-13 | 2020-10-27 | 广州佳优华信息科技有限公司 | Biological filtration equipment |
| CN112156538A (en) * | 2020-10-12 | 2021-01-01 | 何国容 | Ecological treatment facility of domestic sewage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112915796A (en) | 2021-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104791870B (en) | A kind of efficiently Jing Yin lampblack absorber | |
| CN112915796B (en) | Membrane separation equipment for volatile organic compounds | |
| CN111825207A (en) | Biological filtration equipment | |
| CN111420520A (en) | Waste gas treatment equipment | |
| CN208161249U (en) | A kind of water dust scrubber equipped with foam removal mechanism | |
| CN218513522U (en) | Waste lead storage battery copper pole column recycling device | |
| CN214577138U (en) | Coal mine operation ventilation unit | |
| CN204506278U (en) | A kind of dust absorption blackboard eraser | |
| CN112227470B (en) | Stable air pressure equipment | |
| CN111592911A (en) | Oil fluid separator | |
| CN113789939A (en) | Robot of building intelligence spraying | |
| CN209997355U (en) | mounting plate device capable of being mounted and drawn out quickly | |
| CN211635661U (en) | Air outlet opening and closing device of pulse bag type dust collector | |
| CN112822887A (en) | Integrated form environmental protection equipment control operation case | |
| CN111998350A (en) | High-efficient pyrolysis gasification stove of domestic waste pyrolysis gasification gas boosting | |
| CN219023476U (en) | Release agent recoverer | |
| CN219399491U (en) | Antifog formula blade aspirator | |
| CN111023852A (en) | Sliding closure formula fixed point fume extractor | |
| CN206870201U (en) | Plastic collector | |
| CN118049659B (en) | Incineration exhaust gas treatment device and treatment method | |
| CN217847565U (en) | Novel maintenance-free insulator for electric precipitation | |
| CN207429852U (en) | Organic solid waste pyrolysis installation | |
| CN214777778U (en) | Antioxidant cosmetic soft bottle | |
| CN2170309Y (en) | Self-baking anode side-inserted Al electrolytic cell with waste gas separation purifier | |
| CN111200090A (en) | Automatic gas separating plate of pure colloid storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221116 Address after: 342800 Industrial Park, Ningdu County, Ganzhou City, Jiangxi Province Applicant after: JIANGXI YONGTONG TECHNOLOGY CO.,LTD. Address before: Shanghai Langji membrane separation equipment Engineering Co., Ltd., 149 Jianshe Road, Caojing Town, Jinshan District, Shanghai Applicant before: Zhou Ting |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |