CN108005564B - Spring torsion regulator - Google Patents
Spring torsion regulator Download PDFInfo
- Publication number
- CN108005564B CN108005564B CN201810081112.2A CN201810081112A CN108005564B CN 108005564 B CN108005564 B CN 108005564B CN 201810081112 A CN201810081112 A CN 201810081112A CN 108005564 B CN108005564 B CN 108005564B
- Authority
- CN
- China
- Prior art keywords
- surrounding edge
- shell
- spring
- pushing block
- layer surrounding
- 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.)
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Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/62—Counterweighting arrangements
Abstract
A spring torsion regulator comprises a shell, wherein a regulating wheel is arranged on the side surface of the shell, and a circle of ratchet teeth is arranged on the side surface of the regulating wheel facing the shell; the side of the shell is also provided with a gear table, one end of the gear table is provided with a bulge, the bulge is matched with the ratchet, and the other end of the gear table is connected with an elastic piece. The side surface of the shell is provided with a circular ring-shaped outer surrounding edge, a middle surrounding edge and an inner surrounding edge which are sequentially arranged at intervals from outside to inside; the middle layer surrounding edge and the inner layer surrounding edge are equal in height, and the outer layer surrounding edge is lower than the middle layer surrounding edge in height. The spring torsion regulator also comprises an adjusting button, the adjusting button comprises a poking piece and a pushing block, the poking piece is connected with the pushing block through a connecting block, the pushing block is arc-shaped, the arc-shaped is matched with the radian of the outer surrounding edge or the middle surrounding edge, and one end of the pushing block is provided with helical teeth. The spring torsion regulator occupies smaller transverse space, can maximally spread the curtain, greatly reduces other acting forces generated in the process of regulating the spring, and can more rapidly regulate the torsion of the spring rod.
Description
Technical Field
The invention relates to the technical field of curtains, in particular to a spring torsion regulator.
Background
Along with the development and progress of society, curtain products are continuously updated, and spring system curtains which are sold in the market at present comprise spring rolling curtains, stay-cord-free rolling curtains and stay-cord-free rainbow curtains. The curtain is provided with a spring rod at one end of the scroll, and the torsion of the spring rod needs to be regulated to be balanced with the gravity of the curtain underbeam and curtain cloth in the production and use process.
In the prior art, the torsion adjustment of the spring rod is laborious, the adjustment configuration occupies a large space, the width of the cloth is quite different from the width of the actual window frame, and the installation is not attractive.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, the torsion adjustment of a spring rod is laborious, and the adjustment configuration occupies a large space.
In order to solve the technical problems, the invention adopts the following technical scheme:
a spring torsion regulator comprises a shell, wherein a regulating wheel is arranged on the side surface of the shell, and a circle of ratchet teeth is arranged on the side surface of the regulating wheel facing the shell; the side of the shell is also provided with a gear table, one end of the gear table is provided with a bulge, the bulge is matched with the ratchet, and the other end of the gear table is connected with an elastic piece.
The side surface of the shell is provided with a circular ring-shaped outer surrounding edge, a middle surrounding edge and an inner surrounding edge which are sequentially arranged at intervals from outside to inside, and the distance between the outer surrounding edge and the middle surrounding edge is not smaller than the height of the ratchet teeth; the middle layer surrounding edge and the inner layer surrounding edge are equal in height, and the outer layer surrounding edge is lower than the middle layer surrounding edge in height.
The spring torsion regulator also comprises an adjusting button, the adjusting button comprises a poking piece and a pushing block, the poking piece is connected with the pushing block through a connecting block, the pushing block is arc-shaped, the arc-shaped is matched with the radian of the surrounding edge of the outer layer or the surrounding edge of the middle layer, and one end of the pushing block is provided with bevel teeth;
the outer layer peripheral edge is provided with a first notch, the connecting block is arranged in the first notch, and the width of the connecting block is smaller than that of the first notch; the plectrum is located the outer surrounding edge outside, and the ejector pad is located between outer surrounding edge and the middle level surrounding edge.
The outer side of the poking piece is provided with wavy lines.
The middle layer surrounding edge is provided with a second notch, two edges of the second notch are provided with two connecting plates, the two connecting plates extend to the inner layer surrounding edge and form a chute with the inner layer surrounding edge, an elastic piece is arranged in the chute, and the gear table is movably arranged in the chute.
Two sides of the second notch of the middle surrounding edge are provided with two flanges at intervals, and the pushing block can move between the two flanges.
One end of the tooth table, which is connected with the elastic piece, is provided with a counter bore, and one end of the elastic piece stretches into the counter bore.
The elastic piece is a spring or a shrapnel.
The center of the adjusting wheel is provided with a square hole, and the periphery of the adjusting wheel is provided with a circle of gear teeth at intervals;
the adjusting wheel is provided with a positioning column towards the center of the side face of the shell, the positioning column is slotted along the radial direction, the center of the surrounding edge of the inner layer of the shell is provided with a through hole, and the diameter of the through hole is matched with the diameter of the positioning column; the adjusting wheel is buckled on the periphery of the outer layer, and the positioning column is inserted in the through hole.
The top of the bulge at one end of the tooth table is arc-shaped.
Compared with the prior art, the spring torsion regulator has the technical effects that the structure is simple, the occupied transverse space is small, the problem that the width of the window curtain is occupied due to the fact that the transverse space of the regulator is too large is avoided, the window curtain width can be maximized, other acting forces generated in the process of regulating the spring by the regulator are greatly reduced, the torsion of a spring rod can be regulated more quickly, the prestress of the window curtain of a spring system can be regulated conveniently and quickly, and therefore the problem that the torsion of the spring system is difficult to regulate is solved. The spring torsion adjuster is an adjustable bidirectional adjuster formed by the cooperation of the gear table, the adjusting button and the inner side ratchet of the adjusting wheel, and the opposite direction adjustment can be realized by pressing the adjusting button when the opposite direction adjustment is needed.
Drawings
FIG. 1 is an exploded view of a spring torsion adjuster of the present invention;
FIG. 2 is a perspective view of the housing of the present invention;
FIG. 3 is a perspective view of the adjustment wheel of the present invention;
FIG. 4 is a perspective view of a gear stage of the present invention;
FIG. 5 is a perspective view of an adjustment button of the present invention;
FIG. 6 is a perspective view of the gear stage and adjustment button of the present invention assembled to a housing;
FIG. 7 is a perspective view of the adjustment wheel, gear stage and adjustment button of the present invention assembled to a housing;
fig. 8 is a schematic structural view of a spring rod of the present invention.
In the figure, 1, a shell, 11, a through hole, 2, an outer surrounding edge, 21, a first notch, 3, a middle surrounding edge, 31, a connecting plate, 32, a chute, 33, a flange, 4, an inner surrounding edge, 5, an adjusting wheel, 51, ratchets, 52, square holes, 53, a positioning column, 54, gear teeth, 55, a groove, 6, a gear table, 61, a bulge, 62, an arc, 63, a counter bore, 7, an elastic piece, 8, an adjusting button, 81, a poking piece, 82, a wave pattern, 83, a push block, 84, a helical tooth, 85, a connecting block, 9, a spring rod, 91 and a connecting piece.
Detailed Description
As shown in fig. 1, a spring torsion adjuster comprises a shell 1, wherein an adjusting wheel 5 is arranged on the side surface of the shell 1, and a circle of ratchet teeth 51 are arranged on the side surface of the adjusting wheel 5 facing the shell 1; the side of the shell 1 is also provided with a gear table 6, one end of the gear table 6 is provided with a bulge 61, and the other end is connected with an elastic piece 7. The protrusion 61 is engaged with the ratchet 51, and the top of the protrusion 61 is arc-shaped.
As shown in fig. 2-7, the side surface of the shell 1 is provided with a circular ring-shaped outer surrounding edge 2, a middle surrounding edge 3 and an inner surrounding edge 4 which are sequentially arranged at intervals from outside to inside, and the distance between the outer surrounding edge 2 and the middle surrounding edge 3 is not smaller than the height of the ratchet teeth 51; the middle layer surrounding edge 3 and the inner layer surrounding edge 4 are equal in height, and the outer layer surrounding edge 2 is lower than the middle layer surrounding edge 3 in height; the adjusting wheel 5 is buckled on the outer layer surrounding edge 2, a positioning column 53 is arranged at the center of the side surface of the adjusting wheel 5 facing the shell 1, a through hole 11 is arranged at the center of the inner layer surrounding edge 4 of the shell, and the diameter of the through hole is matched with the diameter of the positioning column; when the adjusting wheel 5 is buckled on the outer surrounding edge 2, the positioning column 53 is inserted into the through hole, so that the adjusting wheel is fixed on the shell. In the actual manufacturing process, the diameter of the through hole is slightly smaller than that of the positioning column, and the positioning column is radially grooved 55, so that the diameter of the positioning column can be elastically changed within a certain range, and the positioning column can be matched with the diameter of the through hole better and clamped.
The spring torsion regulator also comprises an adjusting button 8, the adjusting button 8 comprises a pulling piece 81 and a pushing block 83, the pulling piece 81 and the pushing block 83 are connected through a connecting block 85, the pushing block 83 is arc-shaped, the arc-shaped is matched with the outer layer surrounding edge 2 or the middle layer surrounding edge 3 in radian, and one end of the pushing block 83 is provided with an inclined tooth 84; the thickness of the pushing block is equal to the height of the outer layer surrounding edge.
The outer layer surrounding edge 2 is provided with a first notch 21, the connecting block 85 is arranged in the first notch 21, and the width of the connecting block 85 is smaller than that of the first notch 21; the pulling piece 81 is positioned outside the outer surrounding edge 2, and the pushing block 83 is positioned between the outer surrounding edge 2 and the middle surrounding edge 3.
The outside of the plectrum 81 is provided with a wave 82. When the pulling piece 81 is manually pulled to adjust the button 8, the friction force between the finger and the pulling piece 81 can be increased.
The middle layer surrounding edge 3 is provided with a second notch, two edges of the second notch are provided with two connecting plates 31, the two connecting plates 31 extend to the inner layer surrounding edge 4 and form a chute 32 with the inner layer surrounding edge 4, an elastic piece 7 is arranged in the chute 32, and the gear table 6 is movably arranged in the chute 32. The thickness of the tooth platform is equal to the height of the surrounding edge of the middle layer. The sum of the thickness of the pushing block and the thickness of the ratchet teeth is not greater than the thickness of the gear table.
Two flanges 33 are arranged on two sides of the second notch of the middle surrounding edge 3 at intervals of a preset distance, and the pushing block 83 can move between the two flanges 33.
One end of the gear table 6 connected with the elastic piece 7 is provided with a counter bore 63, and one end of the elastic piece 7 stretches into the counter bore 63. The elastic member 7 is a spring or a shrapnel.
The center of the adjusting wheel 5 is provided with a square hole 52, and the periphery of the adjusting wheel 5 is provided with a circle of gear teeth 54 at intervals, so that the adjusting wheel 5 can be manually rotated conveniently.
The working process of the invention is as follows:
as shown in fig. 8, one end of the spring rod 9 is provided with a connecting piece 91, the center of the connecting piece 91 is provided with a square upright post, and the square upright post is inserted into a square hole 52 in the center of the adjusting wheel 5 to complete the connection between the spring rod 9 and the spring torsion adjuster. The spring torsion regulator is connected with the spring rod 9, and the specification of the spring rod 9 can be 25mm, 28mm and other specifications, so that the spring torsion regulator can be applied to various spring system curtains such as spring roller curtains, stay-cord-free roller curtains and stay-cord-free rainbow curtains.
In use, the spring torque is adjusted by rotating the adjustment wheel 5 clockwise in fig. 7. When the adjusting wheel 5 rotates positively, the ratchet teeth 51 squeeze the gear table 6, a component force exists on the acting force of the ratchet teeth 51 to the gear table 6 towards the center of the middle surrounding edge 3, the gear table 6 slides along the sliding groove 32 and compresses the spring, so that the ratchet teeth 51 can smoothly pass over the protrusions 61 on the gear table 6, and the adjusting wheel 5 can continue to rotate. When the protrusion 61 on the gear table 6 is at the lowest point of the tooth groove of the ratchet 51, the gear table 6 is ejected under the action of the spring force, so that the locking of the adjusting wheel 5 is realized and the rotation is not reversed, and the rotation is anticlockwise in fig. 7.
When the adjusting wheel 5 is required to rotate reversely, the adjusting button 8 is pushed in the anticlockwise direction, the inclined teeth 84 on the push block 83 squeeze the protrusions 61 on the gear table 6, and as the tops of the protrusions 61 are circular arcs 62, the inclined teeth 84 can easily generate acting force towards the center of the middle-layer surrounding edge 3 on the gear table 6, the gear table 6 slides along the sliding groove 32 and compresses the spring and keeps away from the ratchet teeth 51, at the moment, the ratchet teeth 51 are not acted by the acting force of the gear table 6, and the adjusting wheel 5 can realize forward and reverse rotation.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the invention.
Claims (7)
1. The spring torsion regulator is characterized by comprising a shell (1), wherein an adjusting wheel (5) is arranged on the side surface of the shell (1), and a circle of ratchet teeth (51) are arranged on the side surface of the adjusting wheel (5) facing the shell (1); the side surface of the shell (1) is also provided with a gear table (6), one end of the gear table (6) is provided with a bulge (61), the bulge (61) is matched with the ratchet (51), and the other end is connected with an elastic piece (7);
the side surface of the shell (1) is provided with a circular ring-shaped outer surrounding edge (2), a middle surrounding edge (3) and an inner surrounding edge (4) which are sequentially arranged at intervals from outside to inside, and the distance between the outer surrounding edge (2) and the middle surrounding edge (3) is not smaller than the height of the ratchet teeth (51); the middle layer surrounding edge (3) and the inner layer surrounding edge (4) are equal in height, and the outer layer surrounding edge (2) is lower than the middle layer surrounding edge (3);
the spring torsion regulator further comprises an adjusting button (8), the adjusting button (8) comprises a poking piece (81) and a pushing block (83), the poking piece (81) and the pushing block (83) are connected through a connecting block (85), the pushing block (83) is arc-shaped, the arc-shaped is matched with the radian of the outer surrounding edge (2) or the middle surrounding edge (3), and one end of the pushing block (83) is provided with a bevel gear (84);
a first notch (21) is formed in the outer-layer surrounding edge (2), a connecting block (85) is arranged in the first notch (21), and the width of the connecting block (85) is smaller than that of the first notch (21); the pulling piece (81) is positioned at the outer side of the outer layer surrounding edge (2), and the pushing block (83) is positioned between the outer layer surrounding edge (2) and the middle layer surrounding edge (3);
one end of the gear table (6) connected with the elastic piece (7) is provided with a counter bore (63), and one end of the elastic piece (7) stretches into the counter bore (63).
2. Spring torsion regulator according to claim 1, characterized in that the outside of the paddle (81) is provided with corrugations (82).
3. The spring torsion regulator according to claim 2, wherein a second notch is arranged on the middle surrounding edge (3), two connecting plates (31) are arranged on two edges of the second notch, the two connecting plates (31) extend onto the inner surrounding edge (4) and form a sliding groove (32) with the inner surrounding edge (4), an elastic piece (7) is arranged in the sliding groove (32), and the gear table (6) is movably arranged in the sliding groove (32).
4. A spring torque regulator according to claim 3, characterized in that two flanges (33) are provided on both sides of the second gap of the middle peripheral edge (3) at a predetermined distance, the push block (83) being movable between the two flanges (33).
5. Spring torsion regulator according to claim 1, characterized in that the elastic element (7) is a spring or a leaf spring.
6. The spring torsion regulator according to claim 1, wherein the center of the regulating wheel (5) is provided with a square hole (52), and a circle of gear teeth (54) are arranged at intervals on the periphery of the regulating wheel (5);
a positioning column (53) is arranged at the center of the side surface of the adjusting wheel (5) facing the shell (1), the positioning column (53) is radially grooved (55), a through hole (11) is arranged at the center of the peripheral edge (4) of the inner layer of the shell, and the diameter of the through hole is matched with the diameter of the positioning column; the adjusting wheel (5) is buckled on the outer surrounding edge (2), and the positioning column (53) is inserted in the through hole.
7. Spring torsion regulator according to claim 1, characterized in that the top of the projection (61) at one end of the tooth table (6) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081112.2A CN108005564B (en) | 2018-01-29 | 2018-01-29 | Spring torsion regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081112.2A CN108005564B (en) | 2018-01-29 | 2018-01-29 | Spring torsion regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005564A CN108005564A (en) | 2018-05-08 |
| CN108005564B true CN108005564B (en) | 2023-12-05 |
Family
ID=62066437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081112.2A Active CN108005564B (en) | 2018-01-29 | 2018-01-29 | Spring torsion regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005564B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3119717U (en) * | 2005-12-15 | 2006-03-09 | 智永 王 | Curtain up-and-down moving device |
| KR20090085431A (en) * | 2008-02-04 | 2009-08-07 | 정감익 | Winding apparatus for roll screen |
| CN201303826Y (en) * | 2008-11-06 | 2009-09-09 | 晟铭电子科技股份有限公司 | Curtain drawstring receiving mechanism |
| KR20110006378A (en) * | 2009-07-14 | 2011-01-20 | 김성수 | Winding apparatus for roll screen |
| KR101318404B1 (en) * | 2012-06-14 | 2013-10-16 | 박해성 | Lifting device of curtain |
| CN203769627U (en) * | 2014-01-06 | 2014-08-13 | 杭州万事达装饰用品有限公司 | Roller shutter rolling device |
| CN203978248U (en) * | 2014-07-15 | 2014-12-03 | 王芳明 | A kind of energy-storaging spring governor motion of applying on roller shutter |
| KR20150014599A (en) * | 2013-07-30 | 2015-02-09 | 김대영 | Roll blind |
| TW201532569A (en) * | 2014-02-18 | 2015-09-01 | Ya-Ying Lin | Cordless roller blinds and reeling device thereof |
| CN205036281U (en) * | 2015-08-26 | 2016-02-17 | 广州丰鼎五金制品有限公司 | Elasticity curtain rollback mechanism that can ask for files for examination |
| CN106193979A (en) * | 2016-08-29 | 2016-12-07 | 无锡市绿色情丝帘业有限公司 | A kind of torque force adjusting mechanism and structure of rolling thereof |
| CN107345471A (en) * | 2017-07-06 | 2017-11-14 | 王芳明 | A kind of spring curtain balancer and its without drawstring window treatment |
| CN207813469U (en) * | 2018-01-29 | 2018-09-04 | 郑州名扬窗饰材料有限公司 | A kind of spring torsion adjuster |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2015678B1 (en) * | 2015-10-29 | 2017-05-29 | Coulisse Bv | Roller blind system comprising a releasably mountable spring operated roller blind. |
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2018
- 2018-01-29 CN CN201810081112.2A patent/CN108005564B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3119717U (en) * | 2005-12-15 | 2006-03-09 | 智永 王 | Curtain up-and-down moving device |
| KR20090085431A (en) * | 2008-02-04 | 2009-08-07 | 정감익 | Winding apparatus for roll screen |
| CN201303826Y (en) * | 2008-11-06 | 2009-09-09 | 晟铭电子科技股份有限公司 | Curtain drawstring receiving mechanism |
| KR20110006378A (en) * | 2009-07-14 | 2011-01-20 | 김성수 | Winding apparatus for roll screen |
| KR101318404B1 (en) * | 2012-06-14 | 2013-10-16 | 박해성 | Lifting device of curtain |
| KR20150014599A (en) * | 2013-07-30 | 2015-02-09 | 김대영 | Roll blind |
| CN203769627U (en) * | 2014-01-06 | 2014-08-13 | 杭州万事达装饰用品有限公司 | Roller shutter rolling device |
| TW201532569A (en) * | 2014-02-18 | 2015-09-01 | Ya-Ying Lin | Cordless roller blinds and reeling device thereof |
| CN203978248U (en) * | 2014-07-15 | 2014-12-03 | 王芳明 | A kind of energy-storaging spring governor motion of applying on roller shutter |
| CN205036281U (en) * | 2015-08-26 | 2016-02-17 | 广州丰鼎五金制品有限公司 | Elasticity curtain rollback mechanism that can ask for files for examination |
| CN106193979A (en) * | 2016-08-29 | 2016-12-07 | 无锡市绿色情丝帘业有限公司 | A kind of torque force adjusting mechanism and structure of rolling thereof |
| CN107345471A (en) * | 2017-07-06 | 2017-11-14 | 王芳明 | A kind of spring curtain balancer and its without drawstring window treatment |
| CN207813469U (en) * | 2018-01-29 | 2018-09-04 | 郑州名扬窗饰材料有限公司 | A kind of spring torsion adjuster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005564A (en) | 2018-05-08 |
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