CN106586723A - Wire winding module - Google Patents
Wire winding module Download PDFInfo
- Publication number
- CN106586723A CN106586723A CN201611239437.6A CN201611239437A CN106586723A CN 106586723 A CN106586723 A CN 106586723A CN 201611239437 A CN201611239437 A CN 201611239437A CN 106586723 A CN106586723 A CN 106586723A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- wind spring
- rotating shaft
- spiral module
- accommodating chamber
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a wire winding module, and solves the technical problems of no facilitation of low cost, integration and miniaturization of the module due to more parts of the wire winding module in the prior art. The wire winding module comprises a rotating shaft; the rotating shaft is coated with a rotating wheel; a winding spring accommodating cavity is formed in the upper part of the rotating wheel; a winding spring is mounted in the winding spring accommodating cavity; a piece-shaped cover plate is mounted in an upper end opening of the winding spring accommodating cavity; a clamping part is arranged at the upper end of the rotating shaft; a clamping hole is formed in center of the cover plate to connect with the clamping part; the rotating shaft supports the cover plate through the clamping part; the cover plate can rotate around the rotating shaft; multiple male buckles are arranged on the side wall of the winding spring accommodating cavity; correspondingly, the cover plate is provided with multiple female buckles connected with the male buckles; and a preset distance is formed between the lower surface of the cover plate after installation and the upper edge of the winding spring. The piece-shaped cover plate is arranged on the rotating wheel, so that the upper cover structure of the wire winding module can be simplified, the size of the wire winding module is reduced, and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of wire accommodating device, and in particular to a kind of spiral module.
Background technology
The auxiliary equipment for being provided with wire, such as earphone, mouse, keyboard etc. will be used in many electronic equipments.For
Using more convenient, spiral module is devised in these auxiliary equipments more and more, for receiving wire or holding wire.
Runner, wind spring and chocking construction are usually provided with spiral module, wire is wrapped on runner, in the elastic return masterpiece of wind spring
Wire can be automatically retracted with, during withdrawal, chocking construction can prevent runner from rotating, prevent the withdrawal of runner from moving
Make such that it is able to which the wire of reserved suitable length does not withdraw.
Generally, assemble wind spring cavity be arranged on runner, and be provided with lid fastened, it is upper lid adopt plastic parts with
Mitigate module weight.In order to prevent the cavity top and bottom friction of wind spring and assembling wind spring, on cavity bottom and the top of assembling wind spring
Portion is provided with a metallic gasket, and can also be provided with snap ring at top prevents metallic gasket from coming off, and is then fastened using upper lid
Encapsulation.
As shown in Figure 1, Figure 2, shown in Fig. 3, upper lid 14 is fastened with runner 10, follows runner 10 to rotate.Metallic gasket 11 with turn
6 top clamping of axle, and snap ring 15 is set fixes, pad 11 keeps fixing with rotating shaft 6.The spiral module parts of this spline structure
It is more, it is unfavorable for the cost degradation of module, integrated and miniaturization.
The content of the invention
In view of the above problems, the invention provides a kind of spiral module, arranges lamellar in the wind spring accommodating chamber upper end of runner
Cover plate replacing original upper lid, lamellar cover plate and the wall clamping of wind spring accommodating chamber side, rotating shaft upper end supports the rotation of lamellar cover plate, cover plate
After installation, lower surface can both prevent wind spring from deviating from wind spring top edge spaced a predetermined distance, so, turn avoid and send out with wind spring
Raw friction, has reached the technical purpose for reducing spiral module size and reducing manufacturing cost.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
The invention provides a kind of spiral module, including rotating shaft, runner is arranged with the rotating shaft, the runner top sets
Wind spring accommodating chamber is equipped with, wind spring is installed in the wind spring accommodating chamber, lamellar is installed at the wind spring accommodating chamber upper end open
Cover plate, the rotating shaft upper end are provided with Access Division, and the cover plate central is provided with hole clipping and is connected with the Access Division, the rotating shaft
The cover plate is supported by Access Division and the cover plate can be rotated around the rotating shaft；Set on the side wall of the wind spring accommodating chamber
Some pin threads are equipped with, some boxes are correspondingly arranged on the cover plate and are connected with the pin thread, lower surface after the cover plate installation
With the wind spring top edge spaced a predetermined distance.
Further, the pin thread is inversed l-shaped claw, and the box is the open-work being arranged on the cover plate.
Further, the pin thread is made into integration with the runner, is arranged between the side wall of both sides and the wind spring accommodating chamber
Jagged, the pin thread upper end is higher by the side wall upper edge of the wind spring accommodating chamber.
Further, one section of wind spring is formed using two breach on the side wall of the wind spring accommodating chamber fix armstand, the volume
Spring outer ring movable end is connected to the wind spring and fixes in armstand.
Further, the Access Division of the rotating shaft upper end be radial ringed draw-in groove, the outside diameter of the radial ringed draw-in groove
Less than the hole clipping internal diameter of the cover plate, the rotating shaft upper end is provided with axial joint-cutting, and the wind spring inner ring fixing end is connected to institute
State in axial joint-cutting.
Further, the edge that a radial direction straight slot connects the cover plate is provided with from the center hole clipping of the cover plate,
Access Division outside diameter of the width of the straight slot less than the rotating shaft upper end, outside bullet when the straight slot both sides are squeezed
Property dilatating and deformable, when the cover plate is connected with the rotating shaft, the Access Division of the rotating shaft enters the card along the straight slot
Kong Zhong.
Further, the rotating shaft upper end is provided with the projection that one section of diameter reduces, and the hole clipping of the cover plate central is set in
On the projection, the outside diameter of the projection is less than the hole clipping internal diameter of the cover plate, and the projection top is provided with retaining pawl.
Further, the cover plate adopts metal material, the wind spring accommodating chamber bottom be provided with metallic gasket hold it is described
Wind spring.
Further, the wind spring accommodating chamber bottom arranges fluted, and the metallic gasket is arranged in the groove.
Further, the spiral module also includes bottom end cover, and the rotating shaft is arranged on the bottom end cover, the bottom end cover
Side is provided with rotatable stop button, is provided with one piece of magnetic devices, in the suction of the magnetic devices on the bottom end cover
Under force action, stop button is braked to the runner automatically, prevents runner from withdrawing wire rod.
The spiral module arranged using said structure has advantages below：
The present invention can simplify the superstructure of spiral module by lamellar cover plate is arranged on runner.In the volume of runner
One group of cantilever pin thread is set on the wall of spring accommodating chamber side, one group of box is accordingly set on the cover board, and is provided with the cover board
One hole clipping, blocks the screens on main shaft.So design can prevent wind spring from deviating from, and can prevent wind spring again with upper lid friction.
Compared to existing technology, invention removes Shang Gai, a metallic gasket and snap ring, reduce spiral module size,
Manufacturing cost is reduced, spiral module more cost degradation, integrated and miniaturization is made.
Description of the drawings
Fig. 1 is the axonometric chart of spiral module in prior art, and in figure, spiral module is not provided with lid；
Fig. 2 is the axonometric chart of the adopted upper lid of spiral module in prior art；
Fig. 3 is the sectional view of spiral module in prior art；
Fig. 4 is the exploded view of spiral module of the present invention；
Fig. 5 is the axonometric chart of spiral module of the present invention, is watched from bottom；
Fig. 6 is the axonometric chart of spiral module of the present invention, is watched from top；
Fig. 7 is the exploded view of spiral module of the present invention, and in figure, runner, wind spring, wire rod, bottom end cover, FPC connection terminals be still
Fit together；
Fig. 8 is the sectional view of spiral module of the present invention；
Fig. 9 is the axonometric chart of the adopted runner of spiral module of the present invention；
Figure 10 is the axonometric chart of the adopted cover plate of spiral module of the present invention.
In figure：1. nail is fixed；2. stop button；3. garment bag；4. magnetic devices；5. bottom end cover；6. rotating shaft；7.FPC connects
Connecting terminal；8. circuit connects shell fragment；9. wire rod；10. runner；10-1. pin threads；10-2. wind spring accommodating chamber；10-3. centre bores；
10-4. wind springs fix armstand；10-5. shell fragment installation position；10-6. winding slots；10-7. ratchets；11. pads；12. wind springs；13. lids
Plate；13-1. boxes；13-2. hole clippings；Cover on 14.；15. snap rings.
Specific embodiment
The present invention design concept be：
It is more for the parts of spiral module in prior art, it is unfavorable for the cost degradation of module, integrated and small-sized
The technical problem of change, the present invention arrange lamellar cover plate, lamellar cover plate and wind spring accommodating chamber side in the wind spring accommodating chamber upper end of runner
Wall clamping, rotating shaft upper end support the rotation of lamellar cover plate, cover plate to install after lower surface with wind spring top edge spaced a predetermined distance, so
Can both prevent wind spring from deviating from, and turn avoid and occur to rub with wind spring, reached reduction spiral module size and reduction is manufactured into
This technical purpose.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment 1
As Fig. 4, Fig. 5, Fig. 6, Fig. 8 show one of embodiments of the invention, in this embodiment, a kind of spiral module,
Including rotating shaft 6, runner 10 in rotating shaft 6, is arranged with, 10 top of runner is provided with wind spring accommodating chamber 10-2, in wind spring accommodating chamber 10-2
Wind spring 12 is installed, lamellar cover plate 13 is installed at wind spring accommodating chamber 10-2 upper end open, 6 upper end of rotating shaft is provided with Access Division,
Cover plate 13 is provided centrally with hole clipping 13-2 and is connected with the Access Division, and rotating shaft 6 supports cover plate 13 by Access Division and cover plate 13 can
Rotate around rotating shaft 6.
Cover plate 13 with the connected mode of runner 10 is：Some pin thread 10-1 are provided with the side wall of wind spring accommodating chamber 10-2,
It is correspondingly arranged on some box 13-1 to be connected with pin thread 10-1 on cover plate 13.
As shown in figure 8, cover plate 13 install after lower surface and 12 top edge of wind spring spaced a predetermined distance, be so designed that be in order to
There is friction with cover plate 13 when preventing 12 dilatation of wind spring.
As shown in Figure 9, Figure 10, pin thread 10-1 is inversed l-shaped claw, and box 13-1 is the open-work being arranged on cover plate 13.
Claw direction is outward or inward.
Pin thread 10-1 is made into integration with runner 10, and jagged (being somebody's turn to do is arranged between the side wall of both sides and wind spring accommodating chamber 10-2
Breach be conducive to pin thread 10-1 deformation so as to box 13-1 clampings), pin thread 10-1 upper ends are higher by the side of wind spring accommodating chamber 10-2
Wall upper edge.
As shown in Fig. 7, Fig. 9, one section of wind spring is formed using two breach on the side wall of wind spring accommodating chamber 10-2 and fix armstand
10-4, the movable end of 12 outer ring of wind spring are connected to wind spring and fix in armstand 10-4, and wind spring 12 is driven in 10 rotary course of runner
Elastic deformation realizes accumulation of energy.
As shown in Fig. 4, Fig. 6, the Access Division of 6 upper end of rotating shaft is radial ringed draw-in groove, the radial ringed draw-in groove it is cylindrical straight
Hole clipping 13-2 internal diameter of the footpath less than cover plate 13,6 upper end of rotating shaft is provided with axial joint-cutting.
As shown in fig. 7, the fixing end of 12 inner ring of wind spring is connected in the axial joint-cutting of 6 upper end of rotating shaft.
The edge that a radial direction straight slot connects cover plate 13, the straight slot are provided with from center hole clipping 13-2 of cover plate 13
Width less than 6 upper end of rotating shaft Access Division outside diameter, straight slot both sides outside elastic changeable diameter when being squeezed, cover plate 13
When being connected with rotating shaft 6, the Access Division of rotating shaft 6 is entered in hole clipping 13-2 along the straight slot.It is so designed that to be to prevent rotating shaft 6
Voluntarily separate with cover plate 13.
Cover plate 13 adopts metal material, can adopt stainless steel substrates, or alcu alloy film.
As shown in figure 8, wind spring accommodating chamber 10-2 bottom is provided with metallic gasket 11.Metallic gasket 11 can adopt rustless steel
Piece, or alcu alloy film.Metallic gasket 11 holds wind spring 12, prevents friction wind spring accommodating chamber 10-2 of wind spring 12 bottom.
In order to fix metallic gasket 11, wind spring accommodating chamber 10-2 bottom arranges fluted, and it is recessed that metallic gasket 11 is arranged on this
In groove.As shown in Figure 9 it can be seen that the design of the groove.
In this embodiment, the other structures and patent of invention " a kind of magnetic-type spiral module " of spiral module
(CN106115383A) it is similar disclosed in, but also have any different, see following contrast description：
The spiral module of the present embodiment also includes bottom end cover 5, and rotating shaft 6 is arranged on bottom end cover 5, and 5 side of bottom end cover is installed
There is rotatable stop button 2 (stop button 2 is rotated around fixed nail 1), on bottom end cover 5, be provided with one piece of magnetic devices 4,
Under the suction-combining force effect of magnetic devices 4, stop button 2 is braked to runner 10 automatically, prevents runner 10 from withdrawing wire rod 9.Magnetic
Device 4 can adopt permanent magnet, can also adopt electric magnet.
What magnetic devices 4 adsorbed is the claw of stop button 2, and ratchet 10-7, such as Fig. 6, figure are equipped with runner 10
7th, shown in Fig. 9.It is so designed that and one block of Magnet can be saved on stop button 2, compared to existing technology the structure of stop button 2
It is simplified.
In order to reduce the runner 10 of the abrasion plastic cement material of stop button 2 of metal material, wear on the claw of stop button 2
It is cased with garment bag 3.Garment bag 3 is made using high-abrasive material, for example POM.
Circuit connection structure in the spiral module of the present embodiment may be referred to a kind of patent of invention " magnetic-type spiral mould
Group " (CN106115383A) disclosed in content, the folding and unfolding process of wire rod is also similar with the patent, and here is not described in detail.
Embodiment 2
In the present embodiment, with embodiment 1 except that, rotating shaft upper end is provided with the projection that one section of diameter reduces, lid
The hole clipping at plate center is set on the projection, and the outside diameter of the projection is less than the hole clipping internal diameter of cover plate, and the projection top is arranged
There is retaining pawl, cover plate is crossed into retaining pawl by applying appropriate pressure when cover plate is installed.It is so designed that, avoids the need on cover plate
The straight slot of connection hole clipping is set again, it is also possible to reach the technical purpose for allowing rotating shaft upper end to support cover plate rotation, and structure
It is simpler.
Other structures are in the same manner as in Example 1, and here is not repeated description.
Presently preferred embodiments of the present invention is these are only, protection scope of the present invention is not intended to limit.It is all at this
Any modification, equivalent substitution and improvements made within bright spirit and principle etc., are all contained in protection scope of the present invention.
Claims (10)
1. a kind of spiral module, including rotating shaft, is arranged with runner in the rotating shaft, the runner top is provided with wind spring receiving
Chamber, is provided with wind spring in the wind spring accommodating chamber, it is characterised in that be provided with lamellar lid at the wind spring accommodating chamber upper end open
Plate, the rotating shaft upper end are provided with Access Division, and the cover plate central is provided with hole clipping and is connected with the Access Division, and the rotating shaft is led to
Cross the Access Division support cover plate and the cover plate can be rotated around the rotating shaft；Arrange on the side wall of the wind spring accommodating chamber
Have some pin threads, some boxes be correspondingly arranged on the cover plate and be connected with the pin thread, the cover plate install after lower surface with
The wind spring top edge is spaced a predetermined distance.
2. spiral module according to claim 1, it is characterised in that the pin thread is inversed l-shaped claw, the box is
The open-work being arranged on the cover plate.
3. spiral module according to claim 2, it is characterised in that the pin thread is made into integration with the runner, both sides
Arrange jagged and the side wall of the wind spring accommodating chamber between, the pin thread upper end is higher by the side wall top of the wind spring accommodating chamber
Edge.
4. spiral module according to claim 1, it is characterised in that lacked using two on the side wall of the wind spring accommodating chamber
Mouth forms one section of wind spring and fixes armstand, and wind spring outer ring movable end is connected to the wind spring and fixes in armstand.
5. spiral module according to claim 1, it is characterised in that the Access Division of the rotating shaft upper end is radial ringed card
Groove, the outside diameter of the radial ringed draw-in groove are less than the hole clipping internal diameter of the cover plate, and the rotating shaft upper end is provided with axially cuts
Seam, the wind spring inner ring fixing end are connected in the axial joint-cutting.
6. spiral module according to claim 5, it is characterised in that be provided with from the center hole clipping of the cover plate
Radial direction straight slot connects the edge of the cover plate, and the width of the straight slot is cylindrical less than the Access Division of the rotating shaft upper end straight
Footpath, outside elastic changeable diameter when the straight slot both sides are squeezed, when the cover plate is connected with the rotating shaft, the rotating shaft
Access Division is entered in the hole clipping along the straight slot.
7. spiral module according to claim 1, it is characterised in that the rotating shaft upper end is provided with what one section of diameter reduced
Projection, the hole clipping of the cover plate central are set on the projection, and the outside diameter of the projection is less than the hole clipping of the cover plate
Internal diameter, the projection top are provided with retaining pawl.
8. spiral module according to claim 1, it is characterised in that the cover plate adopts metal material, the wind spring to hold
Receiving bottom of chamber portion is provided with metallic gasket and holds the wind spring.
9. spiral module according to claim 8, it is characterised in that the wind spring accommodating chamber bottom arranges fluted, institute
State metallic gasket to be arranged in the groove.
10. spiral module according to claim 1, it is characterised in that the spiral module also includes bottom end cover, described turn
Axle is arranged on the bottom end cover, and the bottom end cover side is provided with rotatable stop button, is provided with the bottom end cover
One piece of magnetic devices, under the suction-combining force effect of the magnetic devices, stop button is braked to the runner automatically, is prevented
Runner withdraws wire rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239437.6A CN106586723A (en) | 2016-12-28 | 2016-12-28 | Wire winding module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239437.6A CN106586723A (en) | 2016-12-28 | 2016-12-28 | Wire winding module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106586723A true CN106586723A (en) | 2017-04-26 |
Family
ID=58604740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611239437.6A Pending CN106586723A (en) | 2016-12-28 | 2016-12-28 | Wire winding module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106586723A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585635A (en) * | 2017-08-30 | 2018-01-16 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of netting twine storage box |
| CN114705898A (en) * | 2022-03-31 | 2022-07-05 | 南通大学 | Damage-proof ammeter based on contraction type and capable of conveniently storing cords |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726538A (en) * | 1986-08-11 | 1988-02-23 | Alert Stamping & Mfg. Co., Inc. | Pulley for extension cord reel |
| EP0462846A2 (en) * | 1990-06-21 | 1991-12-27 | Paul C. Burke | Retractable reel, assembly for telephone extension cord |
| DE29903184U1 (en) * | 1999-02-22 | 1999-05-12 | Techno Finish GmbH, 99846 Seebach | Centrifugal brake for cable drums |
| US6053447A (en) * | 1999-02-23 | 2000-04-25 | Spencer Products Company | Tape measure |
| CN202897692U (en) * | 2009-05-13 | 2013-04-24 | 张正平 | Personal portable device keeper |
| CN106115383A (en) * | 2016-08-18 | 2016-11-16 | 青岛歌尔声学科技有限公司 | A kind of magnetic-type spiral module |
| CN206457111U (en) * | 2016-12-28 | 2017-09-01 | 歌尔科技有限公司 | A kind of spiral module |
-
2016
- 2016-12-28 CN CN201611239437.6A patent/CN106586723A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726538A (en) * | 1986-08-11 | 1988-02-23 | Alert Stamping & Mfg. Co., Inc. | Pulley for extension cord reel |
| EP0462846A2 (en) * | 1990-06-21 | 1991-12-27 | Paul C. Burke | Retractable reel, assembly for telephone extension cord |
| DE29903184U1 (en) * | 1999-02-22 | 1999-05-12 | Techno Finish GmbH, 99846 Seebach | Centrifugal brake for cable drums |
| US6053447A (en) * | 1999-02-23 | 2000-04-25 | Spencer Products Company | Tape measure |
| CN202897692U (en) * | 2009-05-13 | 2013-04-24 | 张正平 | Personal portable device keeper |
| CN106115383A (en) * | 2016-08-18 | 2016-11-16 | 青岛歌尔声学科技有限公司 | A kind of magnetic-type spiral module |
| CN206457111U (en) * | 2016-12-28 | 2017-09-01 | 歌尔科技有限公司 | A kind of spiral module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585635A (en) * | 2017-08-30 | 2018-01-16 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of netting twine storage box |
| CN114705898A (en) * | 2022-03-31 | 2022-07-05 | 南通大学 | Damage-proof ammeter based on contraction type and capable of conveniently storing cords |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |