CN106939912A - A kind of connector for goods shelf - Google Patents
A kind of connector for goods shelf Download PDFInfo
- Publication number
- CN106939912A CN106939912A CN201710306371.6A CN201710306371A CN106939912A CN 106939912 A CN106939912 A CN 106939912A CN 201710306371 A CN201710306371 A CN 201710306371A CN 106939912 A CN106939912 A CN 106939912A
- Authority
- CN
- China
- Prior art keywords
- connector
- pipe
- resilient sleeve
- goods shelf
- present
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000005489 elastic deformation Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005034 decoration Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001192 hot extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 206010061619 Deformity Diseases 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
- F16B7/025—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts with the expansion of an element inside the tubes due to axial movement towards a wedge or conical element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
Abstract
The present invention relates to a kind of connector for goods shelf, including tapered cup nut（1）, tightening member（2）, resilient sleeve（3）, detection lid（4）, suspension member（5）And hexagon socket head cap screw（6）, belong to storage facilities technical field.The tightening member of the present invention（2）Left and right ends are compressed with the round tube inner wall being connected, and can be realized 2 points of fastenings of connecting circular tube, be improved the fastening means of known expansion bolt.Resilient sleeve（3）With side compression outside the pipe of local deformation, the mechanical energy of alternate load generation can be absorbed, it is ensured that connector of the invention connects reliable when bearing alternate load with the pipe being connected.Detection lid（4）The tightness connected between connector and connecting circular tube that the present invention can be detected by relatively rotating.The present invention proposes compressing the local deformation position of connecting circular tube by way of strengthening and connecting between guard frame rail, to enable to be reliably connected by connector between shelf post and crossbeam, have a wide range of application.
Description
One, technical fields
The present invention relates to a kind of connector for goods shelf, belong to storage facilities technical field.
Two, background technologies
Shelf are as a kind of important logistics equipment, the frame structure that mostly metal rod is formed by connecting with connector, main bag
Include column, crossbeam and laminate.Mainly there are welding, bolt connection and the connection of butterfly button between the column and crossbeam of shelf.At present
Some pipes or square pipe connecting piece are occurred in that, the connection for pipe or square tube.Application No. 201120029155.X practicality
New patent proposes a kind of connector for goods shelf, enables to square tube to be directly plugged in together, and forms shelf, completely dispenses with spiral shell
Bolt, is convenient to mount and dismount fast, but the bonding strength do not locked between design, pipe fitting is not high.Application No.
201520059357.7 utility model patent proposes a kind of pipe connector, with tapered cup nut and tubular configured joint, screws
After bolt, tapered cup nut enters tubular configured joint so that tubular configured joint is extended out, and produces interference fit with pipe, is connected firmly.Application
Number a kind of connecting component for goods shelf is it is also proposed for 201620199258.3 utility model patent, with column connecting piece and crossbeam
Connector.The crossbeam connector carries expanding end, hexagon socket head cap screw and tapered cup nut, and expanding end is columnar structured, is carried
Axial notch, the pipe as crossbeam and swelling are can be inserted into tapered cup nut with compression, diameter increase, expansion is merged.This kind of company
Fitting utilizes the fastening principle of expansion bolt, realizes the connection and fastening of pipe.The principle of expansion bolt fastening is to utilize taper
The taper of nut produces frictional force to promote tube expansion to expand, and reaches the purpose of fastening.Expansion bolt is generally used for static load
Fastening parts, it is unreliable when bearing alternate load.
The crossbeam connector of the utility model of Application No. 201620199258.3, during Light Duty Rack use, due to
Goods is picked and placeed, collided and other accidentalia, and the degree of crook of guard frame rail is continually changing, and crossbeam connector bears alternating download
Lotus so that crossbeam connector loosens, and is easily released from the pipe of guard frame rail, causes shelf unstability.
In order to avoid shelf unstability, strengthen the fastening performance of connector for goods shelf, it is ensured that the column of shelf is connected with crossbeam can
Lean on, the present invention improves the crossbeam connector of the utility model of Application No. 201620199258.3, it is proposed that a kind of connector for goods shelf.
The three, content of the invention
It is an object of the invention to improve the crossbeam connector of the utility model of Application No. 201620199258.3, and propose one kind
Connector for goods shelf, can strengthen the fastening performance of connector for goods shelf, it is ensured that the connection of shelf post and crossbeam is reliable.
A kind of connector for goods shelf, including tapered cup nut 1, tightening member 2, resilient sleeve 3, detection lid 4, suspension member 5 and interior six
Corner bolt 6, as shown in Figure 1.The right side of tightening member 2 carries axial pass trough, compresses and expands with tapered cup nut 1, with being connected
Round tube inner wall compress, round tube inner wall of the left side with fastener recess 21 and local deformation is compressed, and realizes connecting circular tube
2 points of fastenings.The resilient sleeve 3 is columnar structured, with sleeve recess 31, on the outside of the pipe for being connected in connection, and with office
The outer side compression of pipe of portion's deformation, can produce elastic deformation, absorb the mechanical energy that alternate load is produced, it is ensured that company of the invention
Fitting is connected reliable when bearing alternate load with the pipe as guard frame rail.Detection lid 4 can detect the connection of the present invention
The tightness connected between part and connecting circular tube, it is ensured that connection is reliable.
The tapered cup nut 1 carries convex edge in outer conical surface, coordinates with the axial pass trough of the right-hand member of tightening member 2, carries
Screwed hole, is screwed with merging with the end of thread of hexagon socket head cap screw 6.
The right side of tightening member 2 is columnar structured at the position of axial pass trough, is easy to compress tapered cup nut 1 and swollen
It is swollen, compressed with the round tube inner wall being connected；Left side carries axial centre unthreaded hole at the position of fastener recess 21 so that interior hexagonal spiral shell
Bolt 6 is passed through.The left end of fastener recess 21 of the tightening member 2 is deep, and right-hand member is shallow, with certain taper, it can be ensured that the present invention
Connector be connected reliable with the pipe as guard frame rail, also allow for assembling.Due to tightening member 2 right-hand member and left end all with
The pipe fastening of connection, realizes 2 points of fastenings of connecting circular tube, can be prevented effectively from the connector and connecting circular tube of the present invention
Between axial rotation, it is ensured that connection is reliable.
The resilient sleeve 3 is columnar structured, with sleeve recess 31, on the outside of the pipe for being connected in connection, and with office
The outer side compression of pipe of portion's deformation.Axial direction of the sleeve recess 31 along resilient sleeve 3, left end is deep, and right-hand member is shallow, with fastening
The identical taper of part groove 21, fits and compresses the local deformation position of connecting circular tube.The resilient sleeve 3 is flexible,
When connecting circular tube bears alternate load, elastic deformation can be produced, the deformation recovery for promoting local deformation position to produce, therefore, it is possible to
Absorb the mechanical energy that alternate load is produced.
The detection lid 4 is thin wall cylinder-shaped structure, and left side center carries circular hole so that hexagon socket head cap screw 6 is passed through；It is left
End face carries equally distributed radial projection 41, and the radial groove 51 with suspension member 5 can detect the company of the present invention with compression is merged
The tightness connected between fitting and connecting circular tube；Left end right flank compresses the left end of resilient sleeve 3, accommodates resilient sleeve 3,
With decoration function, cleaning is also allowed for.When the connector fastening of the present invention, hexagon socket head cap screw 6 is tightened so that radial projection 41
It can not be rotated with the radial groove 51 of suspension member 5 with compression, detection lid 4 is merged relative to suspension member 5；When the connector of the present invention loosens
When, because tapered cup nut 1, fastener recess 21 and sleeve recess 31 are all tapered, therefore axial dimension necessarily changes, and makes
Obtain and loosened between radial projection 41 and the radial groove 51 of suspension member 5, detection lid 4 can be rotated relative to suspension member 5.Therefore, lid 4 is detected
The tightness connected between connector and connecting circular tube that the present invention can be detected, it is ensured that connection is reliable.
The left side of suspension member 5 carries lacing film, and the column connecting piece grafting with shelf, right side carries counterbore, interior for accommodating
The head of hex bolts 6 and fastening, right side carry radial groove 51.
The head of the hexagon socket head cap screw 6 coordinates with the counterbore of suspension member 5.The end of thread of the hexagon socket head cap screw 6 and taper
Nut 1 is screwed so that tightening member 2, resilient sleeve 3, detection lid 4 and suspension member 5 are compressed, and realizes connector and the connection of the present invention
Pipe is fastened.
The installation process of connector of the present invention is as follows：1）Unscrew hexagon socket head cap screw 6 first, it is ensured that fastener recess 21 is complete
Expose detection lid 4, tapered cup nut 1 and tightening member 2 are then fully inserted into connecting circular tube.2）Tapped using hammer and fastener
The corresponding mouth of pipe of groove 21 side obtains axial almost plane, then with flat chisel, utilizes the impulsive force of hammer so that mouth of pipe side
Facial disfigurement, is caught in fastener recess 21, obtains and the corresponding deformation of fastener recess 21.3）By resilient sleeve 3 and detection lid 4 according to
It is secondary to be caught in mouth of pipe outer surface to the right；If can not be caught in, it can continue to correct the deformation of mouth of pipe side.4）Hexagon socket head cap screw 6 is tightened,
Ensure that detection lid 4 can not be rotated relative to suspension member 5.
Stretching experiment shows that the first failpoint of the present invention is the screw thread company between tapered cup nut 1 and hexagon socket head cap screw 6
Connect, the second failpoint is the grafting between the lacing film and column connecting piece of suspension member 5.These failpoints can be by increasing structure
Intensity is improved.
The beneficial effects of the invention are as follows：The connector of the present invention improves the utility model of Application No. 201620199258.3
Crossbeam connector, enable to shelf post to be reliably connected with crossbeam by connector, can be prevented effectively from shelf
Bear to release and unstability during alternate load.The left and right ends of tightening member 2 of the present invention are compressed with the round tube inner wall being connected, Neng Goushi
2 points of fastenings of existing connecting circular tube, improve the fastening means of known expansion bolt.The resilient sleeve 3 of the present invention and local deformation
The outer side compression of pipe, the mechanical energy of alternate load generation can be absorbed, it is ensured that connector of the invention and be used as guard frame rail
Pipe connect reliable when bearing alternate load.The detection lid 4 of the present invention can detect the company of the present invention by relatively rotating
The tightness connected between fitting and connecting circular tube, it is ensured that connection is reliable.The present invention is proposed by compressing connecting circular tube
The mode connected between guard frame rail is strengthened at local deformation position, and the improvement for other connectors and expansion bolt also has
There is certain reference significance.The cross section structure of the present invention carries out the connection that simple modifications can be used for the rod members such as square tube, angle steel and channel-section steel,
Have a wide range of application.
Four, are illustrated
Fig. 1 is general structure schematic diagram of the invention.
Description of reference numerals：Tapered cup nut 1, tightening member 2, fastener recess 21, resilient sleeve 3, sleeve recess 31, inspection
Survey lid 4, radial projection 41, suspension member 5, radial groove 51 and hexagon socket head cap screw 6.
Five, embodiments
Technical scheme is described in detail below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 for the present invention general structure schematic diagram, including tapered cup nut 1, tightening member 2, resilient sleeve 3, detection lid
4th, suspension member 5 and hexagon socket head cap screw 6, can realize with the pipe as guard frame rail and be reliably connected.The tapered cup nut 1 is cylindrical
Convex edge is carried on the conical surface, hole, preferably medium carbon steel bar is threaded, by excellent suitability for press forming, then drilling and tapping.
The right side of tightening member 2 carries axial pass trough, and left side carries fastener recess 21；It is at the position of axial pass trough
Columnar structured, left side carries axial centre unthreaded hole at the position of fastener recess 21.The right side of tightening member 2 is axially logical
The machined shaping of the preferred stainless steel pipe in position of groove, position preferred stainless steel bar warp of the left side in fastener recess 21
Machining shapes, and is then shaped again through grinding after two parts welding.The left end of fastener recess 21 of the tightening member 2
Deep, right-hand member is shallow, with certain taper, it is desirable to is able to ensure that and be connected reliability with the pipe as guard frame rail, and is easy to assembling, its
The preferred curved surface in cross section, the boundary curve of the cross section is seamlessly transitted.
The resilient sleeve 3 is columnar structured, with sleeve recess 31, can produce elastic deformation, preferred alloy spring
The machined shaping of steel board.
The detection lid 4 is thin wall cylinder-shaped structure, and left side center carries circular hole, and left side carries equally distributed footpath
To raised 41, preferably stainless steel pipe is shaped through hot extrusion, then is surface-treated.
The left side of suspension member 5 carries lacing film, and right side carries counterbore, and right side carries radial groove 51.The lacing film is preferred
Stainless steel materials are stamping, and the preferred stainless steel pipe in position of the right side counterbore of suspension member 5 is shaped through hot extrusion, two
Welding forming is passed through in part again.
The hexagon socket head cap screw 6 carries head and the end of thread, preferably known hexagon socket head cap screw standard component.
Above-mentioned implementation is only the preferred embodiment of the present invention, is not construed as limiting the invention.Meeting the present invention
Structure and performance requirement under the conditions of, change material and manufacturing process, all within protection scope of the present invention.
Claims (5)
1. a kind of connector for goods shelf, including tapered cup nut（1）, tightening member（2）, resilient sleeve（3）, detection lid（4）, suspension member
（5）And hexagon socket head cap screw（6）, it is characterised in that the tightening member（2）Right side carries axial pass trough, with tapered cup nut（1）Pressure
It is tight and expand, compressed with the round tube inner wall being connected, left side carries fastener recess（21）Compressed with the round tube inner wall of local deformation,
Realize 2 points of fastenings of connecting circular tube；The resilient sleeve（3）To be columnar structured, with sleeve recess（31）, it is connected in
On the outside of the pipe of connection, and with side compression outside the pipe of local deformation, elastic deformation can be produced, absorb what alternate load was produced
Mechanical energy, it is ensured that connector of the invention is connected reliable when bearing alternate load with the pipe as guard frame rail；Detection lid
（4）The tightness connected between connector and connecting circular tube that the present invention can be detected, it is ensured that connection is reliable.
2. according to a kind of connector for goods shelf described in claim 1, it is characterised in that the tightening member（2）Right side is axially logical
The position of groove is columnar structured, and left side is in fastener recess（21）Position carry axial centre unthreaded hole so that interior hexagonal spiral shell
Bolt（6）Pass through；The tightening member（2）Fastener recess（21）With tapered, it can be ensured that connector and work of the invention
Connect reliable for the pipe of guard frame rail, also allow for assembling.
3. according to a kind of connector for goods shelf described in claim 1, it is characterised in that the sleeve recess（31）Along resilient sleeve
（3）Axial direction, carry and fastener recess（21）Identical taper.
4. according to a kind of connector for goods shelf described in claim 1, it is characterised in that the suspension member（5）Left side carries lacing film, with
The column connecting piece grafting of shelf, right side carries counterbore, for accommodating hexagon socket head cap screw（6）Head and fastening, right side band
There is radial groove（51）.
5. according to a kind of connector for goods shelf described in claim 1, it is characterised in that the detection lid（4）For thin wall cylinder-shaped knot
Structure, left side center carries circular hole so that hexagon socket head cap screw（6）Pass through；Left side carries equally distributed radial projection（41）,
With suspension member（5）Radial groove（51）Compress, connected between connector and connecting circular tube that the present invention can be detected with merging
Tightness；Left end right flank compresses resilient sleeve（3）Left end, accommodate resilient sleeve（3）, with decoration function, also allow for
Cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306371.6A CN106939912B (en) | 2017-05-04 | 2017-05-04 | Goods shelf connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306371.6A CN106939912B (en) | 2017-05-04 | 2017-05-04 | Goods shelf connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106939912A true CN106939912A (en) | 2017-07-11 |
| CN106939912B CN106939912B (en) | 2023-01-13 |
Family
ID=59464134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710306371.6A Active CN106939912B (en) | 2017-05-04 | 2017-05-04 | Goods shelf connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939912B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588078A (en) * | 2017-08-09 | 2018-01-16 | 宁波市镇海甬鼎紧固件制造有限公司 | A kind of bolt be easy to locking and can be locking |
| CN110748189A (en) * | 2019-11-11 | 2020-02-04 | 广东博智林机器人有限公司 | Spray pipe floating support mechanism and building inner wall hole plugging robot |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1369236A (en) * | 1972-05-23 | 1974-10-02 | British Iron Steel Research | Space frames |
| GB2093517A (en) * | 1981-02-21 | 1982-09-02 | Ibrahim Kemal | Securing means |
| DE29813772U1 (en) * | 1998-08-01 | 1998-11-05 | Modulares Raum Design S A R L | Mounting system for frame or support structure constructions |
| DE102004021144A1 (en) * | 2004-04-29 | 2005-11-24 | Schütze GmbH & Co. KG | Arrangement for torque transmission into pipe made of fiber compound material, comprising complementary conical elements |
| CH702886A2 (en) * | 2010-03-19 | 2011-09-30 | Paul Soltermann | Connection sleeve for processing bamboo-beam for manufacturing panel wall, has anchoring part pushed into recess till to predetermined depth, where anchoring of bolt into wall of beam takes place through tapering of pipe end with cap |
| CN103109096A (en) * | 2010-09-08 | 2013-05-15 | Zf腓特烈斯哈芬股份公司 | Bracket-less clamping assembly |
| CN103715862A (en) * | 2012-10-01 | 2014-04-09 | 通用电气能源能量变换技术有限公司 | Mechanical assemblies |
| CN206845611U (en) * | 2017-05-04 | 2018-01-05 | 鲁东大学 | A kind of connector for goods shelf |
-
2017
- 2017-05-04 CN CN201710306371.6A patent/CN106939912B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1369236A (en) * | 1972-05-23 | 1974-10-02 | British Iron Steel Research | Space frames |
| GB2093517A (en) * | 1981-02-21 | 1982-09-02 | Ibrahim Kemal | Securing means |
| DE29813772U1 (en) * | 1998-08-01 | 1998-11-05 | Modulares Raum Design S A R L | Mounting system for frame or support structure constructions |
| DE102004021144A1 (en) * | 2004-04-29 | 2005-11-24 | Schütze GmbH & Co. KG | Arrangement for torque transmission into pipe made of fiber compound material, comprising complementary conical elements |
| CH702886A2 (en) * | 2010-03-19 | 2011-09-30 | Paul Soltermann | Connection sleeve for processing bamboo-beam for manufacturing panel wall, has anchoring part pushed into recess till to predetermined depth, where anchoring of bolt into wall of beam takes place through tapering of pipe end with cap |
| CN103109096A (en) * | 2010-09-08 | 2013-05-15 | Zf腓特烈斯哈芬股份公司 | Bracket-less clamping assembly |
| CN103715862A (en) * | 2012-10-01 | 2014-04-09 | 通用电气能源能量变换技术有限公司 | Mechanical assemblies |
| CN206845611U (en) * | 2017-05-04 | 2018-01-05 | 鲁东大学 | A kind of connector for goods shelf |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588078A (en) * | 2017-08-09 | 2018-01-16 | 宁波市镇海甬鼎紧固件制造有限公司 | A kind of bolt be easy to locking and can be locking |
| CN110748189A (en) * | 2019-11-11 | 2020-02-04 | 广东博智林机器人有限公司 | Spray pipe floating support mechanism and building inner wall hole plugging robot |
| CN110748189B (en) * | 2019-11-11 | 2021-08-06 | 广东博智林机器人有限公司 | Spray pipe floating support mechanism and building inner wall hole plugging robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106939912B (en) | 2023-01-13 |
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