CN112722856A - Vacuum pipeline transportation system and method - Google Patents
Vacuum pipeline transportation system and method Download PDFInfo
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- CN112722856A CN112722856A CN202110070307.9A CN202110070307A CN112722856A CN 112722856 A CN112722856 A CN 112722856A CN 202110070307 A CN202110070307 A CN 202110070307A CN 112722856 A CN112722856 A CN 112722856A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
- B65G51/18—Adaptations of pipes or tubes; Pipe or tube joints
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- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
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Abstract
The invention discloses a vacuum pipeline transportation system and a method, the structure of the system comprises a sub-vacuum tube and a soft expansion port, the outer expansion port is in clearance fit with the sub-vacuum tube and is movably connected with the sub-vacuum tube, articles are stored in an inner built-in grid, the inner built-in grid is placed on a bottom plate, an open suction block of the vacuum pipe swings through external force, a separation ball in the vacuum pipe moves along the inner part of a separation layer, the required size is expanded according to the space, when arc extrusion strips in the middle part are butted together, the swing suction strip is stressed by an outer pocket layer, the inner part can be uniformly distributed and diffused according to the force butted by the outside, the swing suction strip is integrally changed, the force stressed by the outer layer is applied to the swing suction strip, certain deformation is generated according to the change of the force, the outer support layer can be smoothly jointed and sealed together, and peripheral space can be sealed and isolated when articles are placed in the inner part, when the mouthpiece is closed, the mouthpiece is still in an isolated state, so that outside air cannot enter.
Description
The invention relates to a divisional application of an external compartment object sub-vacuum pipeline transportation system, which is applied for 9, 25 and 2019, and is named as CN 201910908788.9.
Technical Field
The invention belongs to the field of transportation, and particularly relates to a vacuum pipeline transportation system and a vacuum pipeline transportation method.
Background
When the goods are transported through the sub-vacuum pipeline, the air in the pipeline is pumped out, the transporter can rapidly move forward under the condition of no air resistance, and the transported goods are guided by the bottom track to be transported to the appointed position.
Based on the findings of the inventor, the existing sub-vacuum pipeline transportation system mainly has the following defects, such as:
when the transport body is connected with an external outlet to place goods, the gravity of the goods entering the interior of the transport body is different, the transport body clamped on the track at the middle part of the transport body swings, a certain gap is formed between the connecting port and the outlet, and the air of the transport body can enter the track when the air is still in motion.
Therefore, it is desirable to provide a vacuum pipeline transportation system and method.
Disclosure of Invention
In order to solve the problem that when the transportation body is connected with an external outlet to place goods, the gravity of the goods entering the inside of the transportation body is different, the transportation body clamped on the track at the middle part of the transportation body swings, a certain gap is formed between the connection port and the outlet, and the air of the transportation body can run in when the transportation body is not used.
The invention relates to a vacuum pipeline transportation system and a method thereof, which are achieved by the following specific technical means:
the structure of the device comprises a sub-vacuum tube, a soft expansion port and an outer connecting port.
The outer connecting port is in clearance fit with and movably connected with the sub-vacuum tube, and the connecting soft unfolding port is embedded into the sub-vacuum tube.
The outer mouth that links up includes and separates the space layer, separates the adhesive linkage, opens and inhales the piece, built-in check, solid suction head, prolongs core, bottom plate, it runs through in separating the space in situ portion to prolong the core, separate the adhesive linkage and laminate in separating the space surface, it inhales the piece and installs in prolonging inside the core to open, the bottom plate laminates in built-in check inner wall, gu the suction head with prolong the core and be connected.
As a further improvement of the invention, the suction block comprises an extension body, a sticking paste, two arc extrusion strips and two middle partition balls, wherein the sticking paste is attached to the outer surface of the arc extrusion strips, the middle partition balls are embedded in the arc extrusion strips, the extension body is arranged above the arc extrusion strips, and the middle partition balls are of a spherical structure.
As a further improvement of the invention, the adhesion isolating layer comprises an outer sealing layer, an expansion core, a smooth head, an arc sticking strip, an outer expansion angle and an inner expansion strip, wherein the expansion core is embedded in the outer sealing layer, the smooth head is attached to the outer surface of the outer sealing layer, the inner expansion strip is arranged in the arc sticking strip, the outer expansion angle is positioned on the inner wall of the inner expansion strip, the expansion core is of a spherical structure, and seven outer expansion angles are arranged.
As a further improvement of the invention, the arc extrusion strip comprises an inner hollow layer, an outer pocket layer and a swing direction absorption strip, the swing direction absorption strip is embedded in the inner hollow layer, one end of the swing direction absorption strip, which is far away from the inner hollow layer, is connected with the outer pocket layer, and the outer pocket layer is made of rubber materials and has certain resilience.
As a further improvement of the invention, the sticking and sucking patch comprises a patch layer, an inner fixing block, a half parting strip, a curved pocket strip, an oval clip ball and an outer supporting layer, wherein the inner fixing block is embedded in the patch layer, the half parting strip is attached to the outer surface of the patch layer, the oval clip ball is connected with the curved pocket strip, the curved pocket strip is arranged in the outer supporting layer, the oval clip ball is of an oval structure, and the number of the half parting strips is three.
As a further improvement of the invention, the swing suction strip comprises an expansion core strip, a soft edge layer and a middle support body, wherein the expansion core strip is embedded in the soft edge layer, the soft edge layer is attached to the outer surface of the middle support body, eight and four expansion core strips are arranged in one group, and the middle support body is of a spherical structure.
Compared with the prior art, the invention has the following beneficial effects:
the inner part of the built-in grid is stored with articles and is placed on the bottom plate, the opening and suction block is swung by external force, the middle ball of the opening and suction block moves along the inner part of the hollow layer, the inner wall of the inner wall is supported by the outer expansion angle in the inner hollow expansion strip, the distance between the outer expansion of the outer sealing layer is not larger, the smooth head is smoothly extruded along the original path, the expansion core is extruded by the outer wall of the outer part, the required size is expanded according to the space of the interval, when the arc extrusion strips in the middle part are butted together, the swinging suction strip is stressed by the extruded force of the outer pocket layer, the inner part can be uniformly distributed and diffused according to the force butted by the outside, the swinging suction strip is integrally changed, the force stressed by the outer layer is applied to the outer layer, certain deformation is generated according to the change of the force, the outer support layer can be smoothly attached and sealed together, and the peripheral space can be sealed and isolated when the articles are placed in the inner part, when the mouthpiece is closed, the mouthpiece is still in an isolated state, so that outside air cannot enter.
Drawings
Fig. 1 is a schematic structural diagram of a vacuum pipeline transportation system and method of the present invention.
FIG. 2 is a schematic view of the front view of the internal structure of an external mouthpiece according to the present invention.
Fig. 3 is a schematic front view of the internal structure of the suction block of the present invention.
Fig. 4 is a schematic front view of an internal structure of an adhesive barrier layer according to the present invention.
Fig. 5 is a schematic front view of an internal structure of an arc extrusion strip according to the present invention.
Fig. 6 is a schematic front view of the internal structure of the sticking patch of the present invention.
Fig. 7 is a schematic front view of the internal structure of the swing suction strip of the present invention.
In the figure: a sub-vacuum tube-11, a soft expansion mouth-22, an external mouth-33, an isolation layer-aa 1, an isolation layer-aa 2, an open suction block-aa 3, an internal grid-aa 4, a fixed suction head-aa 5, an extension core-aa 6, a bottom plate-aa 7, an extension body-zx 1, a stick suction patch-zx 2, an arc extrusion strip-zx 3, an isolation ball-zx 4, an external sealing layer-tt 01 and a swelling and pressing core-tt 02, the device comprises a smooth head-tt 03, an arc sticking strip-tt 04, an outer expanding angle-tt 05, an inner hollow expansion strip-tt 06, an inner hollow layer-g 11, an outer pocket layer-g 22, a swinging suction strip-g 33, a sticking layer-a 1a, an inner fixed block-a 2a, a half-parting strip-a 3a, a curved pocket strip-a 4a, an oval clip ball-a 5a, an outer support layer-a 6a, an expansion core strip-qw 11, a soft edge layer-qw 22 and a middle support body-qw 33.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 7:
the invention provides a vacuum pipeline transportation system and a method, and the structure of the vacuum pipeline transportation system comprises a sub-vacuum pipe 11, a soft connecting port 22 and an outer connecting port 33.
The outer connecting port 33 is in clearance fit with and movably connected with the sub-vacuum tube 11, and the connecting soft unfolding port 22 is embedded in the sub-vacuum tube 11.
The outer mouthpiece 33 comprises an isolating layer aa1, an isolating layer aa2, an open suction block aa3, an internal grid aa4, a fixed suction head aa5, an extending core aa6 and a bottom plate aa7, the extending core aa6 penetrates through the inside of the isolating layer aa1, the isolating layer aa2 is attached to the outer surface of the isolating layer aa1, the open suction block aa3 is installed inside the extending core aa6, the bottom plate aa7 is attached to the inner wall of the internal grid aa4, and the fixed suction head aa5 is connected with the extending core aa 6.
The opening and sucking block aa3 comprises an extension body zx1, a sticking and sucking paste zx2, arc extrusion strips zx3 and partition balls zx4, wherein the sticking and sucking paste zx2 is stuck to the outer surface of the arc extrusion strips zx3, the partition balls zx4 are embedded into the arc extrusion strips zx3, the extension body zx1 is installed above the arc extrusion strips zx3, the number of the sticking and sucking pastes zx2 is two, the partition balls zx3 are two, the partition balls zx4 are of a sphere structure, the partition balls zx4 fix the overall approximate size range, the extension body zx1 expands the range and the stress area of the middle part, and the sticking and sucking paste zx2 generates certain deformation according to the force applied by the outside.
The adhesive isolation layer aa2 comprises an outer sealing layer tt01, a bulging core tt02, a smooth head tt03, an arc sticking strip tt04, an outer expanding angle tt05 and an inner expanding strip tt06, the bulging core tt02 is embedded in the outer sealing layer tt01, the smooth head tt03 is attached to the outer surface of the outer sealing layer tt01, the inner expanding strip tt06 is installed in the arc sticking strip tt04, the outer expanding angle tt05 is located on the inner wall of the inner expanding strip tt06, the bulging core 02 is of a spherical structure, seven outer expanding angles tt05 are arranged, the smooth head tt03 is of a gradually changing form, the smooth head tt 35can be smoothly extruded and smoothly attached according to the position, the bulging core 02 expands to the size required by the space, and the outer expanding angle tt05 provides certain supporting expansion force for the outer layer tt.
The arc extrusion strip zx3 comprises an inner hollow layer g11, an outer pocket layer g22 and a pendulum direction suction strip g33, the pendulum direction suction strip g33 is embedded into the inner hollow layer g11, the pendulum direction suction strip g33 is connected with the outer pocket layer g22 at one end far away from the inner hollow layer g11, the outer pocket layer g22 is made of rubber materials and has certain resilience, the outer pocket layer g22 can uniformly distribute and diffuse the inner part according to the force resisted by the outside, the pendulum direction suction strip g33 is implemented by the force applied to the outer layer, and certain deformation is generated according to the change of the force.
The sticking and sucking patch zx2 comprises a patch layer a1a, an inner fixing block a2a, a half parting strip a3a, a curved pocket strip a4a, an oval clamping ball a5a and an outer supporting layer a6a, wherein the inner fixing block a2a is embedded in the patch layer a1a, the half parting strip a3a is attached to the outer surface of the patch layer a1a, the oval clamping ball a5a is connected with the curved pocket strip a4a, the curved pocket strip a4a is installed in the outer supporting layer a6a, the oval clamping ball a5a is of an oval structure, the number of the half parting strips a3a is three, the inner fixing block a2a fixes the overall position and shape, the half parting strip a3a is subjected to a hard force on the outer layer, the functions of buffering and protection, and the curved pocket strip a4a changes according to the borne force, and the approximate clamped ball a5a is prevented from being pressed together.
The swing suction strip g33 comprises an inflation core strip qw11, a soft edge layer qw22 and a middle support body qw33, the inflation core strip qw11 is embedded into the soft edge layer qw22, the soft edge layer qw22 is attached to the outer surface of the middle support body qw33, eight and four inflation core strips qw11 are arranged to form a group, the middle support body qw33 is of a sphere structure, the inflation core strip qw11 can give a certain external inflation pushing force to the outer layer, the soft edge layer qw22 has a certain protection force to the inner layer, and the middle support body qw33 can give a certain integral force bearing point.
The specific use mode and function of the embodiment are as follows:
in the invention, when the sub-vacuum tube 11 is stopped at a corresponding position, the outer mouth 33 needs to be opened, articles are stored in the inner grid aa4 and placed on the bottom plate aa7, the open suction block aa3 swings under the external force, the partition ball zx4 moves along the inner part of the partition layer aa1, the partition adhesive layer aa2 connected to zx1 moves along with the partition adhesive layer aa, the outer sealing layer tt01 is clamped in a gap between the partition adhesive layer aa and the partition adhesive layer aa, the expansion of the expanded core tt02 moves, the inner wall is supported in the inner hollow strip tt06 by the outer expansion angle tt05, the distance for the outer sealing layer tt01 to expand is larger, when the article is assembled on the bottom plate 7, the outer extension body zx1 is pressed back by the external force, the smooth head tt03 smoothly contacts with the original path, the expanded core 02 is extruded by the external inner wall aa, the outer pressing force generates an outer pressing layer 01 which can be attached to the outer pressing layer according to the external force, when the extension zx1 moves to a certain position, the corresponding sticking and sucking paste zx2 is collided, when the arc extrusion strips zx3 in the middle are collided, the swinging and sucking strips g33 are stressed by the force of the outer pocket layer g22 being extruded, wherein the support body qw33 drives the soft edge layer qw22 to generate certain deformation, the inflating core qw11 is extruded, the swinging and sucking strips g33 are integrally changed and are attached to the corresponding positions, the outer support layer a6a is contacted subsequently, the curved pocket strip a4a is extruded by external force, the oval clamping ball a5a protects the curved pocket strip, the half partition strip a3a generates certain deformation, and the outer support layer a6a can be attached and sealed together smoothly.
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 to achieve the above technical effects.
Claims (6)
1. The utility model provides an external partition thing sub-vacuum pipeline transportation system, its structure includes sub-vacuum tube (11), links up soft exhibition mouth (22), links up mouth (33) outward, its characterized in that:
the outer connecting port (33) is in clearance fit with and movably connected with the sub-vacuum tube (11), and the connecting soft expansion port (22) is embedded in the sub-vacuum tube (11);
the outer joint mouth (33) comprises an isolating layer (aa1), an isolating adhesive layer (aa2), an open suction block (aa3), an internal grid (aa4), a fixed suction head (aa5), an extending core (aa6) and a bottom plate (aa7), wherein the extending core (aa6) penetrates through the inside of the isolating layer (aa1), the isolating adhesive layer (aa2) is attached to the outer surface of the isolating layer (aa1), the open suction block (aa3) is installed inside the extending core (aa6), the bottom plate aa (aa7) is attached to the inner wall of the internal grid (aa4), and the fixed suction head (aa5) is connected with the extending core (aa 6);
open and inhale piece (aa3) including epitaxial body (zx1), glue and inhale subsides (zx2), the crowded strip of arc (zx3), well septum ball (zx4), it pastes in the crowded strip of arc (zx3) surface to glue to inhale subsides (zx2), well septum ball (zx4) are embedded in the crowded strip of arc (zx3) inside, epitaxial body (zx1) are installed to crowded strip of arc (zx3) top.
2. The system according to claim 1, wherein: the anti-sticking layer (aa2) comprises an outer sealing layer (tt01), a bulging core (tt02), a smooth head (tt03), an arc sticking strip (tt04), an outer expanding angle (tt05) and an inner expanding strip (tt06), wherein the bulging core (tt02) is embedded into the outer sealing layer (tt01), the smooth head (tt03) is attached to the outer surface of the outer sealing layer (tt01), the inner expanding strip (tt06) is installed into the arc sticking strip (tt04), and the outer expanding angle (tt05) is located on the inner wall of the inner expanding strip (tt 06).
3. The system according to claim 1, wherein: the arc extrusion strip (zx3) comprises an inner hollow layer (g11), an outer pocket layer (g22) and a pendulum direction suction strip (g33), wherein the pendulum direction suction strip (g33) is embedded into the inner hollow layer (g11), and one end, far away from the inner hollow layer (g11), of the pendulum direction suction strip (g33) is connected with the outer pocket layer (g 22).
4. The system according to claim 1, wherein: paste and inhale subsides (zx2) including pasting layer (a1a), interior solid piece (a2a), half parting bead (a3a), bent pocket strip (a4a), oval ball (a5a), outer layer (a6a) of supporting, interior solid piece (a2a) is embedded in pasting layer (a1a) inside, half parting bead (a3a) is laminated in pasting layer (a1a) surface, oval ball (a5a) of pressing from both sides is connected with bent pocket strip (a4a), bent pocket strip (a4a) are installed and are supported inside layer (a6a) outward.
5. The system according to claim 3, wherein: the swing suction strip (g33) comprises an inflation core strip (qw11), a soft edge layer (qw22) and a middle support body (qw33), wherein the inflation core strip (qw11) is embedded in the soft edge layer (qw22), and the soft edge layer (qw22) is attached to the outer surface of the middle support body (qw 33).
6. The vacuum pipe transportation system and method according to any one of claims 1-5, wherein:
according to the invention, when the sub-vacuum tube (11) stops at a corresponding position, the outer joint port (33) needs to be opened, articles are stored in the inner grid aa4 and placed on the bottom plate (aa7), the open suction block (aa3) swings under the external force, the partition ball (zx4) moves along the inner part of the partition layer (aa1), the partition layer (aa2) connected to (zx1) moves along with the partition ball, and the outer sealing layer (tt01) is clamped in a gap between the partition ball and the partition layer due to the expansion of the expansion core (tt 02);
the inner wall is supported by an outer expansion angle (tt05) in the inner hollow expansion strip (tt06) and the distance of the outer sealing layer (tt01) is not expanded outwards, when an object is assembled on the bottom plate (aa7), the outer extension body (zx1) of the object is pressed backwards by external force, the smooth head (tt03) is smoothly extruded and contacted along the original path, the expansion core (tt02) is extruded by the outer inner wall, the outer sealing layer (tt01) can be attached to the inner wall more closely according to the extrusion force due to the running of gas, when the outer extension body (zx1) moves to a certain position, the corresponding adhesive patch (zx2) can be abutted, and when the arc extrusion strips (zx3) in the middle part are abutted together, the swing-direction suction strip (g33) is subjected to the extrusion force of the outer pocket (g 22);
wherein, the support body (qw33) will drive the soft edge layer (qw22) to produce certain deformation, extrude its inflation core strip (qw11), let the pendulum to inhale the whole change of strip (g33), laminate in corresponding position, what follow-up contact was just outside to layer (a6a), extrude its curved pocket strip (a4a) through external power, protect it by oval ball (a5a), let half parting bead (a3a) produce certain deformation, let outside laminating that layer (a6a) can be smooth seal together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070307.9A CN112722856A (en) | 2019-09-25 | 2019-09-25 | Vacuum pipeline transportation system and method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910908788.9A CN110683362B (en) | 2019-09-25 | 2019-09-25 | External-partition-object sub-vacuum pipeline transportation system |
| CN202110070307.9A CN112722856A (en) | 2019-09-25 | 2019-09-25 | Vacuum pipeline transportation system and method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910908788.9A Division CN110683362B (en) | 2019-09-25 | 2019-09-25 | External-partition-object sub-vacuum pipeline transportation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112722856A true CN112722856A (en) | 2021-04-30 |
Family
ID=69110589
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910908788.9A Active CN110683362B (en) | 2019-09-25 | 2019-09-25 | External-partition-object sub-vacuum pipeline transportation system |
| CN202110070307.9A Withdrawn CN112722856A (en) | 2019-09-25 | 2019-09-25 | Vacuum pipeline transportation system and method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910908788.9A Active CN110683362B (en) | 2019-09-25 | 2019-09-25 | External-partition-object sub-vacuum pipeline transportation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110683362B (en) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO63926A2 (en) * | 1976-07-01 | 1979-10-31 | Inst Pentru Creatie Stintific | PNEUMATIC TRANSPORTATION INSTALLATION |
| CN101759023B (en) * | 2008-10-27 | 2013-12-25 | 北京银融科技有限责任公司 | Pneumatic pipeline transmission system and method for putting in and taking out transmission carrier |
| DE102010046542A1 (en) * | 2010-09-27 | 2012-03-29 | Putzmeister Engineering Gmbh | Delivery pipe and method for producing a delivery pipe |
| JP5687049B2 (en) * | 2010-12-27 | 2015-03-18 | キヤノンアネルバ株式会社 | Conveying apparatus and vacuum processing apparatus |
| CN104260729B (en) * | 2014-09-12 | 2017-03-08 | 王昕鑫 | A kind of magnetic floats the suction fidelity devices and methods therefor in tunnel |
| CN105800317A (en) * | 2016-04-12 | 2016-07-27 | 周耀龙 | Wind tunnel bullet fixed delivery vehicle |
| CN205855380U (en) * | 2016-08-11 | 2017-01-04 | 林援及 | A kind of shipping magnetic levitation vacuum pipe transmission system |
| CN107618515A (en) * | 2017-09-28 | 2018-01-23 | 苏彬诚 | A kind of vacuum bullet train system for being provided with Vomitory |
| CN108327732A (en) * | 2018-02-08 | 2018-07-27 | 张跃 | A kind of vacuum train trapping access apparatus |
| CN108860170B (en) * | 2018-03-19 | 2020-04-21 | 武汉理工大学 | Vacuum connection system for vacuum pipeline magnetic suspension train |
| CN208411717U (en) * | 2018-05-16 | 2019-01-22 | 苏彬诚 | A kind of sealing system for bullet train vacuum pipe |
| CN209080942U (en) * | 2018-10-29 | 2019-07-09 | 北京拓威能效技术有限公司 | Pipeline switching device |
| CN109532850B (en) * | 2018-11-05 | 2024-03-22 | 中铁二院工程集团有限责任公司 | Passenger boarding and alighting channel for vacuum pipeline maglev vehicle |
| CN209051420U (en) * | 2018-11-08 | 2019-07-02 | 中国铁路设计集团有限公司 | Separation door system for segmented vacuum-pipeline transfer system |
| CN109733419A (en) * | 2019-02-15 | 2019-05-10 | 吕行 | A kind of sealing system that vacuum pipe traffic is out of the station |
| CN110015311A (en) * | 2019-05-15 | 2019-07-16 | 中航长沙设计研究院有限公司 | Sub- vacuum pipe traffic transportation system |
| CN110171712B (en) * | 2019-06-12 | 2020-12-15 | 张鲁国 | Transport pipeline and method of use thereof |
-
2019
- 2019-09-25 CN CN201910908788.9A patent/CN110683362B/en active Active
- 2019-09-25 CN CN202110070307.9A patent/CN112722856A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN110683362B (en) | 2021-07-27 |
| CN110683362A (en) | 2020-01-14 |
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Application publication date: 20210430 |
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