CN109633227B - Split type metering box cable port plugging assembly - Google Patents
Split type metering box cable port plugging assembly Download PDFInfo
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- CN109633227B CN109633227B CN201811609938.8A CN201811609938A CN109633227B CN 109633227 B CN109633227 B CN 109633227B CN 201811609938 A CN201811609938 A CN 201811609938A CN 109633227 B CN109633227 B CN 109633227B
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 206010019477 Hemivertebra Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
Abstract
The invention relates to the technical field of metering boxes, and provides a split type cable port plugging component of a metering box, which is formed by buckling two spiral semi-cones through a connecting mechanism, wherein each spiral semi-cone comprises a plurality of sections of spiral layers, each section of spiral layer is arranged at the same height, and the plurality of sections of spiral layers are integrally designed; at the wire inlet of the metering box, two spiral semi-cones which are buckled together are arranged along the wire inlet direction of the wire inlet from the large-opening end to the small-opening end; at the outlet of batch meter, two lock-ups are in the same place spiral half centrum is by the big mouth end to the little mouth end along the outlet direction setting of outlet to the realization promotes life cycle to the effective shutoff of batch meter inlet and outlet, and on-the-spot convenient operation can satisfy the shutoff of the cable mouth in multiple aperture moreover, extensive applicability.
Description
Technical Field
The invention belongs to the technical field of metering boxes, and particularly relates to a cable port plugging assembly of a split type metering box.
Background
The metering box is the total of metering devices and auxiliary equipment necessary for metering electric energy, and comprises an electric energy meter, a voltage for metering, a current transformer and a secondary circuit thereof, an electric energy metering screen, a cabinet, a box and the like.
At present, a cable inlet and a cable outlet of a metering box are generally protected by a plastic component or a rubber ring, gaps exist at the cable inlet and the cable outlet of the metering box due to different diameters of the cables connected or led out, vine plants and small animals easily enter the metering box along the gaps, and great hidden dangers are brought to safety. The common plugging method mainly comprises two methods, namely, the fireproof plugging mud is adopted for plugging, and the defect that the plugging material is easy to soften and fall off due to the rise of temperature exists. And secondly, the foaming material is adopted for plugging, so that the defects of long plugging process, inconvenience in subsequent cable maintenance and replacement and the like exist.
In conclusion, the plugging method for the cable inlet and the cable outlet of the conventional metering box has the defects of complex plugging operation, short service cycle after plugging and inconvenience for subsequent maintenance and replacement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a split type metering box cable port plugging assembly, and aims to solve the problems that in the prior art, a plugging method for a cable inlet and a cable outlet of a metering box is complex in plugging operation, short in service cycle after plugging and inconvenient to maintain and replace subsequently.
The technical scheme provided by the invention is as follows: a split type metering box cable port plugging assembly is formed by buckling two spiral semi-cones through a connecting mechanism, each spiral semi-cone comprises a plurality of sections of spiral layers, each section of spiral layer is arranged at the same height, the plurality of sections of spiral layers are integrally designed, and the connecting mechanism comprises a convex column and a concave hole which are matched with each other;
at the wire inlet of the metering box, two spiral semi-cones which are buckled together are arranged along the wire inlet direction of the wire inlet from the large-opening end to the small-opening end;
and at the outlet of the metering box, the two spiral semi-conical bodies which are buckled together are arranged along the outlet direction of the outlet from the large opening end to the small opening end.
As an improved scheme, the convex column is arranged on the buckling surface of one of the spiral semi-conical bodies;
the concave hole is arranged on the buckling surface of the other spiral semi-cone body.
As an improved scheme, the convex columns are provided with waist lines, and the concave holes are internally provided with concave grains.
As an improved scheme, the split type metering box cable port plugging assembly further comprises a fixing binding strip arranged at the lower part of the spiral semi-cone body.
As an improved scheme, the spiral semi-cone body and the fixing tie are made of nitrile rubber.
As an improved scheme, the radius R corresponding to the circular arc of the spiral layer of each section of the spiral semi-cone body positioned at the wire inlet is calculated by the following formula:
the device comprises a metering box, a sealing component, a metering box inlet, a sealing component and a sealing component, wherein X is the opening caliber of a large opening end of the sealing component positioned on one side of the metering box inlet, X is the opening caliber of a small opening end of the sealing component positioned on one side of the metering box inlet, Deltax is the difference of the opening calibers of two adjacent spiral layers, h is the height of each spiral layer, and the caliber X, the caliber X, the difference Deltax and the height h of the opening calibers of the two adjacent spiral layers are known numbers.
As an improved scheme, the calculation formula of the difference Δ x between the opening diameters of two adjacent spiral layers is as follows:
wherein n is the number of the spiral semi-cone and is a known number.
As an improved scheme, the radius R corresponding to the circular arc of the spiral layer of each section of the spiral semi-cone positioned at the outlet is calculated as follows:
y is the opening caliber of the large opening end of the plugging component on one side of the outlet of the metering box, Y is the opening caliber of the small opening end of the plugging component on one side of the outlet of the metering box, delta Y is the difference of the opening calibers of two adjacent spiral layers, h is the height of each spiral layer, and the calibers Y, the calibers Y, the difference delta Y of the opening calibers of the two adjacent spiral layers and the height h are known numbers.
As an improved scheme, the calculation formula of the difference Δ y between the opening diameters of two adjacent spiral layers is as follows:
wherein n is the number of the spiral semi-cone and is a known number.
In the embodiment of the invention, the split metering box cable port plugging component is formed by buckling two spiral semi-cones through a connecting mechanism, each spiral semi-cone comprises a plurality of sections of spiral layers, each section of spiral layer is arranged at the same height, and the plurality of sections of spiral layers are integrally designed; at the wire inlet of the metering box, two spiral semi-cones which are buckled together are arranged along the wire inlet direction of the wire inlet from the large-opening end to the small-opening end; at the outlet of batch meter, two lock-ups are in the same place spiral half centrum is by the big mouth end to the little mouth end along the outlet direction setting of outlet to the realization promotes life cycle to the effective shutoff of batch meter inlet and outlet, and on-the-spot convenient operation can satisfy the shutoff of the cable mouth in multiple aperture moreover, extensive applicability.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a cable port plugging assembly of a split metering box provided by the invention;
FIG. 2 is a schematic structural view of a spiral hemi-cone provided by the present invention;
FIG. 3 is a schematic view of the structure of the cable inlet and outlet at the bottom of the metering box provided by the present invention;
FIG. 4 is a schematic structural view of the convex pillar provided by the present invention;
FIG. 5 is a schematic view of a dimple provided in accordance with the present invention;
FIG. 6 is a schematic structural view of a fixing tie provided by the present invention;
wherein, 1-spiral half cone, 2-spiral layer, 3-wire inlet, 4-wire outlet, 5-convex column, 6-concave hole, 7-waist line, 8-concave line and 9-fixing tie strip.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic structural diagram of a cable port plugging assembly of a split-type metering box provided by the invention, and for convenience of explanation, only parts related to an embodiment of the invention are shown in the diagram.
As shown in connection with figure 2 of the drawings,
the split metering box cable port plugging component is formed by buckling two spiral semi-cones 1 through a connecting mechanism, each spiral semi-cone 1 comprises a plurality of sections of spiral layers 2, each section of spiral layer 2 is arranged at the same height, and the plurality of sections of spiral layers 2 are integrally designed;
at a wire inlet 3 of the metering box, two spiral semi-conical bodies 1 which are buckled together are arranged along the wire inlet direction of the wire inlet 3 from a large-opening end to a small-opening end;
at the outlet 4 of the metering box, the two spiral half cones 1 which are buckled together are arranged along the outlet direction of the outlet 4 from the large opening end to the small opening end.
As shown in the schematic diagram of the inlet and outlet of the cable at the bottom of the metering box in fig. 3, the incoming cable is connected to the inlet switch of the metering box through the inlet 3, and the outgoing cable is connected to the client-side switch through the outlet 4;
the number of the commonly used metering box meter positions comprises 1, 2, 4, 6, 9 and 15, and the diameter ranges of the corresponding cable inlet 3 and outlet 4 are also larger. Due to the fact that the diameter span of the cable port is large, in order to save cost and meet the requirement of being convenient for field installation, the plugging assembly shown in the figure 1 can adopt two specifications to meet the requirement of more products.
In this embodiment, the two spiral-shaped hemivertebras 1 are fastened together by means of a connection mechanism which can be used in the following way:
coupling mechanism includes mutually supporting projection 5 and shrinkage pool 6, wherein:
the convex column 5 is arranged on the buckling surface of one spiral semi-cone 1;
the concave hole 6 is arranged on the buckling surface of the other spiral semi-cone 1;
of course, a convex column may be disposed on one side of one of the spiral semi-cones, and a concave hole may be disposed on the other side, as shown in fig. 2;
the convex column 5 is provided with a waist line 7, the concave hole 6 is internally provided with concave lines 8, as shown in fig. 4 and 5, wherein the waist line 7 on the convex column 5 is designed to increase friction force and prevent falling after being inserted into the concave hole 6, and the concave lines 8 are arranged to discharge internal air along the concave lines 8 after the convex column 5 is inserted into the concave hole 6, so that the convex column can be conveniently and easily inserted.
In the embodiment of the invention, the spiral semi-cone 1 is made of nitrile rubber, and has good wear resistance and compressibility.
In this embodiment, the cable port plugging assembly of the split-type metering box further comprises a fixing tie 9 disposed at the lower part of the spiral semi-cone 1, as shown in fig. 6, wherein:
two half centrums of spiral 1 of split type batch meter cable port shutoff subassembly are connected and are accomplished the back, tie up at the lower extreme, play with two lock be in the same place with cable closely laminate and fixed action, fixed bundle 9 adopt with half centrum 1 the same material of spiral, ensure to have the same life with the main assembly, fixed bundle 9 upper cylinder of strip be middle outstanding design, when inserting bundle a hole locking function.
In the embodiment of the present invention, the setting of the arc surface of each spiral layer 2 of the spiral half cone 1 is important, and the constraint effect on the cable is obvious, so that when designing the spiral half cone 1, the radius corresponding to the arc needs to be calculated, which is specifically realized as follows: the radius R corresponding to the circular arc of the spiral layer 2 of each section of the spiral semi-cone body 1 positioned at the wire inlet 3 is calculated as follows:
wherein, X is the aperture of the large opening end of the plugging component at one side of the inlet 3 of the metering box, X is the aperture of the small opening end of the plugging component at one side of the inlet 3 of the metering box, Δ X is the difference of the aperture of the two adjacent spiral layers 2, h is the height of each spiral layer 2, and the aperture X, the aperture X, the difference Δ X of the aperture of the two adjacent spiral layers 2 and the height h are known numbers.
In this embodiment, the calculation formula of the difference Δ x between the aperture diameters of the two adjacent spiral layers 2 is:
wherein n is the number of the sections of the spiral semi-cone 1 and is a known number.
Correspondingly, the radius R corresponding to the circular arc of the spiral layer 2 of each section of the spiral semi-cone 1 at the outlet 4 is calculated as:
y is the opening caliber of the large opening end of the plugging component positioned on one side of the outlet 4 of the metering box, Y is the opening caliber of the small opening end of the plugging component positioned on one side of the outlet 4 of the metering box, delta Y is the difference of the opening calibers of two adjacent spiral layers 2, h is the height of each spiral layer 2, and the calibers Y, the calibers Y, the difference delta Y of the opening calibers of two adjacent spiral layers 2 and the height h are known numbers.
In this embodiment, the calculation formula of the difference Δ y between the aperture diameters of the two adjacent spiral layers 2 is:
wherein n is the number of the sections of the spiral semi-cone 1 and is a known number.
The above description is given for a specific calculation procedure only, and is not intended to limit the present invention.
For convenience of explanation, the specific installation process of the cable port plugging component of the split metering box is given as follows:
when the cable is installed on site, one of the spiral semi-cones is inserted into the cable port from top to bottom from the upper part of the cable inlet and the cable outlet of the metering box to wrap the cable, and the cable is stopped when the diameter of the spiral layer 2 is larger than that of the cable inlet and the cable outlet and cannot move downwards continuously;
then the other spiral semi-cone body is wrapped by the cable by the same operation, and finally the two spiral semi-cone bodies are connected into a whole through the convex column 5 and the concave hole 6;
if the caliber of the lower end of the spiral semi-cone body is too small to be connected in the connection process, the lower end part can be cut off by a cutter at a proper position according to the reality and then connected.
In the embodiment of the invention, the split metering box cable port plugging component is formed by buckling two spiral semi-cones 1 through a connecting mechanism, each spiral semi-cone 1 comprises a plurality of sections of spiral layers 2, each section of spiral layer 2 is arranged at the same height, and the plurality of sections of spiral layers 2 are integrally designed; at a wire inlet 3 of the metering box, two spiral semi-conical bodies 1 which are buckled together are arranged along the wire inlet direction of the wire inlet 3 from a large-opening end to a small-opening end; at outlet 4 of batch meter, two lock together half centrum 1 of spiral is held to the osculum end by the macrostoma and is followed outlet 4's direction setting of being qualified for the next round of competitions to the realization promotes life cycle to the effective shutoff of batch meter inlet 3 and outlet 4, and on-the-spot convenient operation can satisfy the shutoff of the cable mouth in multiple aperture moreover, extensive applicability.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (5)
1. A split type metering box cable port plugging assembly is characterized by being formed by buckling two spiral semi-cones through a connecting mechanism, wherein each spiral semi-cone comprises a plurality of sections of spiral layers, each section of spiral layer is arranged at the same height, the plurality of sections of spiral layers are integrally designed, and the connecting mechanism comprises a convex column and a concave hole which are matched with each other;
at the wire inlet of the metering box, two spiral semi-cones which are buckled together are arranged along the wire inlet direction of the wire inlet from the large-opening end to the small-opening end;
at the outlet of the metering box, two spiral semi-cones which are buckled together are arranged along the outlet direction of the outlet from the large opening end to the small opening end;
the radius R corresponding to the circular arc of the spiral layer of each section of the spiral semi-cone body positioned at the wire inlet is calculated as follows:
wherein, X is the aperture of the large opening end of the plugging component on one side of the inlet of the metering box, and X is the aperture of the small opening end of the plugging component on one side of the inlet of the metering box，
The difference of the opening calibers of two adjacent spiral layers is shown, h is the height of each spiral layer, and the calibers X and the calibers X are the difference of the opening calibers of two adjacent spiral layers
And the height h is a known number;
the difference of the opening diameters of the two adjacent spiral layers
The calculation formula of (A) is as follows:
wherein n is the number of the sections of the spiral semi-cone and is a known number;
the radius R corresponding to the circular arc of the spiral layer of each section of the spiral semi-cone positioned at the outlet is calculated as follows:
wherein Y is the opening caliber of the large opening end of the plugging component positioned at one side of the outlet of the metering box, Y is the opening caliber of the small opening end of the plugging component positioned at one side of the outlet of the metering box,
is the difference of the opening calibers of two adjacent spiral layers, h is the height of each spiral layer, and the calibers Y and Y are the difference of the opening calibers of two adjacent spiral layers
And the height h is a known number;
the difference of the opening diameters of the two adjacent spiral layers
The calculation formula of (A) is as follows:
wherein n is the number of the sections of the spiral semi-cone and is a known number;
when the cable is installed on site, one of the spiral semi-cones is inserted into the cable port from top to bottom from the upper part of the cable inlet and the cable outlet of the metering box to wrap the cable, and the cable is stopped when the diameter of the spiral layer is larger than that of the cable inlet and the cable outlet and cannot move downwards continuously;
then the other spiral semi-cone body is wrapped by the cable by the same operation, and finally the two spiral semi-cone bodies are connected into a whole through the convex column and the concave hole;
if the caliber of the lower end of the spiral semi-cone body is too small to be connected in the connection process, the lower end part can be cut off by a cutter at a proper position according to the reality and then connected.
2. The split metering box cable port plugging assembly of claim 1, wherein the post is disposed on a buckling surface of one of the spiral semi-cones;
the concave hole is arranged on the buckling surface of the other spiral semi-cone body.
3. The split metering box cable port plugging assembly of claim 2, wherein a waist line is arranged on the convex column, and a concave line is arranged in the concave hole.
4. The split metering tank cable port plugging assembly of claim 1, further comprising a fixing tie disposed at a lower portion of the spiral semi-cone.
5. The split metering tank cable port plugging assembly of claim 4, wherein the spiral semi-cone and the fixing tie are made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609938.8A CN109633227B (en) | 2018-12-27 | 2018-12-27 | Split type metering box cable port plugging assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609938.8A CN109633227B (en) | 2018-12-27 | 2018-12-27 | Split type metering box cable port plugging assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109633227A CN109633227A (en) | 2019-04-16 |
| CN109633227B true CN109633227B (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811609938.8A Expired - Fee Related CN109633227B (en) | 2018-12-27 | 2018-12-27 | Split type metering box cable port plugging assembly |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3090871B2 (en) * | 1996-02-29 | 2000-09-25 | 日本安全産業株式会社 | Insulated terminal cover for distribution line |
| CN102062261A (en) * | 2010-11-18 | 2011-05-18 | 正泰电气股份有限公司 | Self-sealing type cable incoming and outgoing device of switch equipment |
| CN202309003U (en) * | 2011-09-05 | 2012-07-04 | 欧司朗股份有限公司 | Electric cable sealing member for electronic module and electronic module |
| CN103858295A (en) * | 2011-10-07 | 2014-06-11 | 菲尼克斯电气公司 | Cable feedthrough and method for assembling a cable feedthrough |
| CN104242217A (en) * | 2014-09-25 | 2014-12-24 | 安徽恒晶电缆集团有限公司 | Simple convenient-to-mount cable protection pipe |
| CN204156491U (en) * | 2014-11-06 | 2015-02-11 | 国家电网公司 | Cable interface shutoff headgear |
| CN204668897U (en) * | 2015-06-02 | 2015-09-23 | 江阴市峭岐讯达塑料厂 | Cable mouth of pipe shutoff plug |
| CN205070376U (en) * | 2015-10-15 | 2016-03-02 | 长虹塑料集团英派瑞塑料股份有限公司 | Cable seal fixed head |
| CN105673297A (en) * | 2016-04-07 | 2016-06-15 | 嵊泗县陈久海洋生物集养有限公司 | Cable leakage stopper of water flow generator |
| CN207994590U (en) * | 2018-04-04 | 2018-10-19 | 南阳防爆（苏州）特种装备有限公司 | Cable sealing ring for high-voltage motor |
| CN208043889U (en) * | 2018-04-25 | 2018-11-02 | 广东电网有限责任公司 | A kind of string holes plugging device and electric meter box |
| CN208209445U (en) * | 2018-06-05 | 2018-12-07 | 中国海底电缆建设有限公司 | Mouth blocks under Submarine Optical/cable fan platform J-type pipe |
-
2018
- 2018-12-27 CN CN201811609938.8A patent/CN109633227B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3090871B2 (en) * | 1996-02-29 | 2000-09-25 | 日本安全産業株式会社 | Insulated terminal cover for distribution line |
| CN102062261A (en) * | 2010-11-18 | 2011-05-18 | 正泰电气股份有限公司 | Self-sealing type cable incoming and outgoing device of switch equipment |
| CN202309003U (en) * | 2011-09-05 | 2012-07-04 | 欧司朗股份有限公司 | Electric cable sealing member for electronic module and electronic module |
| CN103858295A (en) * | 2011-10-07 | 2014-06-11 | 菲尼克斯电气公司 | Cable feedthrough and method for assembling a cable feedthrough |
| CN104242217A (en) * | 2014-09-25 | 2014-12-24 | 安徽恒晶电缆集团有限公司 | Simple convenient-to-mount cable protection pipe |
| CN204156491U (en) * | 2014-11-06 | 2015-02-11 | 国家电网公司 | Cable interface shutoff headgear |
| CN204668897U (en) * | 2015-06-02 | 2015-09-23 | 江阴市峭岐讯达塑料厂 | Cable mouth of pipe shutoff plug |
| CN205070376U (en) * | 2015-10-15 | 2016-03-02 | 长虹塑料集团英派瑞塑料股份有限公司 | Cable seal fixed head |
| CN105673297A (en) * | 2016-04-07 | 2016-06-15 | 嵊泗县陈久海洋生物集养有限公司 | Cable leakage stopper of water flow generator |
| CN207994590U (en) * | 2018-04-04 | 2018-10-19 | 南阳防爆（苏州）特种装备有限公司 | Cable sealing ring for high-voltage motor |
| CN208043889U (en) * | 2018-04-25 | 2018-11-02 | 广东电网有限责任公司 | A kind of string holes plugging device and electric meter box |
| CN208209445U (en) * | 2018-06-05 | 2018-12-07 | 中国海底电缆建设有限公司 | Mouth blocks under Submarine Optical/cable fan platform J-type pipe |
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| CN109633227A (en) | 2019-04-16 |
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