CN105161910A - Plug convenient to plug and unplug - Google Patents
Plug convenient to plug and unplug Download PDFInfo
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- CN105161910A CN105161910A CN201510590632.2A CN201510590632A CN105161910A CN 105161910 A CN105161910 A CN 105161910A CN 201510590632 A CN201510590632 A CN 201510590632A CN 105161910 A CN105161910 A CN 105161910A
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- lever
- plug
- insulating frame
- connecting pin
- header body
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Abstract
The invention discloses a plug convenient to plug and unplug. The plug comprises a plug body, an insulation frame arranged in the plug body and insertion sheets fixedly arranged on the insulation frame. One end of each insertion sheet is connected with a wire, and the other end thereof extends from the lower end of the plug body. The plug also comprises a lever linkage mechanism and a control mechanism. The lever linkage mechanism comprises a plurality of levers in head-tail connection in sequence and arranged around the insulation frame; the adjacent two levers are symmetrically connected; the middle portion of each lever is movably connected with the plug body through a pin shaft; and one end of each lever is movably connected with the insulation frame through a connecting pin, and the lower side of the other end thereof is connected with the bottom surface of the plug body through a reset spring. The control mechanism comprises a control button, wherein the control button is arranged on the upper surface of the plug body. The levers comprise the first lever. The control button is connected with the upper side of one end, connected with the reset spring, of the first lever through a connecting rod. The plug has the advantages of convenient plugging and unplugging, simple structure, wide application range and high practicality.
Description
Technical field
The invention belongs to electric field, it relates to a kind of plug, is related specifically to one and conveniently plugs plug.
Background technology
The electric equipments such as TV, computer, wiring board are widely used in the middle of the every field closely bound up with people's daily life, these electric equipments have a common ground, be exactly that they all comprise for connecting the plug of power supply, in use, by plug is inserted in receptacle sockets, to realize the connection of electrical equipment and power supply.Be provided with metal clips in general receptacle sockets, after the contact pin of plug inserts the jack of socket, contact pin clamps by metal clips.When unplugg, often cause plug to be difficult to extract due to the too tight of the metal clips card in the contact pin of plug and jack, namely use effort and inconvenient.Even in unplugg process, especially little of the elderly's strength extracts one section of contact pin, and at this moment continuing unplugg may touch contact pin, causes potential safety hazard.
In order to overcome above-mentioned technical problem, the patent No. be 201310504349.4 Chinese invention patent disclose a kind of plug easy to plug, it comprises header body, elastic squeezing unit and bracing or strutting arrangement.The major part of elastic squeezing unit and bracing or strutting arrangement is all located in header body; Plug is inserted on socket, and the bracing or strutting arrangement of bottom surface is extruded in header body; Press elasticity extruding, due to the conversion of the elastic squeezing unit of header body inside and the miter angle power of bracing or strutting arrangement, the feet of bracing or strutting arrangement ejects downwards, thus whole plug and socket is separated.When using the plug of this structure, as long as user's one hand pressing elastic squeezing unit just can be pulled out plug easily, avoid two hands and remove unplugg or the trouble of unplugg that tramps with one's feet, also for handicapped crowd provides conveniently, also eliminate potential safety hazard simultaneously.
But, this plug easy to plug, in use, be pressed on socket by feet top, so that plug is ejected, namely in this action, socket can bear the very large pressure that feet applies, therefore when using this plug, have very high requirement to the mechanical strength of socket panel, otherwise can because the active force of feet by socket panel to damaging by pressure, therefore this plug easy to plug also exists the shortcoming of the little and poor practicability of the scope of application.
Summary of the invention
Simple, the applied widely and practical convenience of a kind of structure is the object of the present invention is to provide to plug plug.
To achieve these goals, the technical solution used in the present invention is:
One conveniently plugs plug, the inserted sheet comprising header body, be located at the insulating frame of header body inside and be fixed on insulating frame, and one end of this inserted sheet is connected with wire, and the other end extends from the below of header body; The present invention also comprises lever linkage structure and controlling organization; Wherein lever linkage structure comprises the multiple head and the tail connected lever be successively located at around insulating frame, and adjacent two lever symmetries connect, the middle part of each lever is flexibly connected by bearing pin with header body, one end of each lever is flexibly connected by connecting pin with insulating frame, and the downside of the other end is connected with the underrun back-moving spring of header body; This controlling organization comprises control button, and the upper surface of header body is located at by this control button, and this lever comprises the first lever, and the upside that this control button is connected one end of back-moving spring with the first lever is connected by connecting rod.
Above-mentioned one conveniently plugs plug, and the centre of this back-moving spring is provided with gag lever post, and the lower end of this gag lever post is fixed in header body, and this connecting rod is hollow structure, and the upper end of the gag lever post corresponding with this connecting rod is run through the first lever and extends in connecting rod.
Above-mentioned one conveniently plugs plug, this lever also comprises the second lever, 3rd lever, 4th lever and the 5th lever, the downside of the head of this first lever is connected with underrun first back-moving spring of header body, upside is connected by connecting rod with control button, the afterbody of this first lever is connected by the first connecting pin with the head of the second lever, this first connecting pin and insulating frame are fixedly linked, the afterbody of this second lever is connected by the first contiguous block with the head of the 3rd lever, the downside of this first contiguous block is connected with underrun second back-moving spring of jack body, the afterbody of the 3rd lever is connected by the second connecting pin with the head of the 4th lever, this second connecting pin and insulating frame are fixedly linked, the afterbody of the 4th lever is connected by the second contiguous block with the head of the 5th lever, the downside of this second contiguous block is connected with the underrun of jack body the 3rd back-moving spring, the afterbody of the 5th lever and insulating frame are movably connected by the 3rd connecting pin.
Above-mentioned one conveniently plugs plug, and this first connecting pin, the second connecting pin and the 3rd connecting pin are located on described insulating frame uniformly.
Above-mentioned one conveniently plugs plug, and this insulating frame is equilateral triangle structure, and the position, middle on three articles of limits of insulating frame is located at respectively by this first connecting pin, the second connecting pin and the 3rd connecting pin.
Above-mentioned one conveniently plugs plug, this first lever and the second lever offer the cotter way matched with the first connecting pin, 3rd lever and the 4th lever offer the cotter way matched with the second connecting pin, the 5th lever offers the cotter way matched with the 3rd connecting pin.
Above-mentioned one conveniently plugs plug, one end of this first contiguous block and the afterbody of the second lever are fixedly linked, the other end offers the first location notch, the head of the 3rd lever is provided with first alignment pin corresponding with location notch, one end of this second contiguous block and the afterbody of the 4th lever are fixedly linked, the other end offers location notch, and the head of the 5th lever is provided with second alignment pin corresponding with the second location notch.
Above-mentioned one conveniently plugs plug, and the top of this insulating frame is connected by tensioner spring with header body.
Above-mentioned one conveniently plugs plug, and the below of this insulating frame is provided with positioning tube, and this header body is provided with the reference column matched with positioning tube.
Above-mentioned one conveniently plugs plug, and this insulating frame offers the through hole corresponding with wire.
The invention has the beneficial effects as follows: by being provided with multiple head and the tail connected lever successively around insulating frame, and the middle part of each lever is flexibly connected by bearing pin with header body, one end of each lever is flexibly connected by connecting pin with insulating frame, the downside of the other end is connected with the underrun back-moving spring of header body, and the upside of the first lever is connected with control button by connecting rod, in normal use procedure, under the elastic force effect of back-moving spring, one end that lever is connected with insulating frame has downward active force, namely the inserted sheet on insulating frame is made can be exposed to the downside of header body fully, thus ensure normal use of the present invention, when plug pulled up by needs, by pressing control button, namely back-moving spring can be compressed, lever can rotate around bearing pin, now by the transmission of lever, insulating frame upwards can be pushed up, namely make the inserted sheet on insulating frame shrink in header body, so time can facilitate, pull up plug easily.Therefore the present invention is while the convenient plug of realization, the panel of the socket coordinated with plug can not bear very large pressure, also namely the present invention in use, do not have very large requirement to socket, therefore the present invention has applied widely and practical advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is exploded view of the present invention;
Fig. 3 is the cutaway view of Fig. 1 along A-A;
Fig. 4 is the cutaway view of Fig. 1 along B-B;
Fig. 5 is the cutaway view of Fig. 4 along C-C;
Fig. 6 is the cutaway view of Fig. 4 along D-D;
Fig. 7 is the structural representation of pedestal in Fig. 2.
Embodiment
Further understand for making to have architectural feature of the present invention and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figures 1 to 7, one conveniently plugs plug, and the inserted sheet 3 comprising header body 1, be located at the insulating frame 2 of header body 1 inside and be fixed on insulating frame 2, one end of this inserted sheet 3 is connected with wire 4, and the other end extends from the below of header body 1.Wherein jack body comprises pedestal 11 and cover plate 12, and this pedestal 11 is screwed with cover plate 12 and is connected, pedestal offers the jack corresponding with inserted sheet 3, make inserted sheet 3 can do stretching motion along this jack, also namely make under the induced effect of insulating frame 2, shrink in the chamber that inserted sheet 3 can surround to pedestal 11 and cover plate 12.
Move to realize controlling insulating frame 2, the present invention also comprises lever linkage structure 5 and controlling organization 6; Wherein lever linkage structure 5 comprises the multiple head and the tail connected lever 51 be successively located at around insulating frame 2, and adjacent two lever 51 symmetries connect, the middle part of each lever 51 is flexibly connected by bearing pin 52 with header body 1, one end of each lever 51 is flexibly connected by connecting pin 53 with insulating frame 2, and the downside of the other end is connected with the underrun back-moving spring 54 of header body 1.More particularly, lever 51 comprises the first lever 511, second lever 512, the 3rd lever 513, the 4th lever 514 and the 5th lever 515, and joins end to end successively between them, to realize interlock.
Wherein, the downside of the head of the first lever 511 is connected by the first back-moving spring 541 with pedestal 11, middle part is flexibly connected with the bearing pin support 113 on pedestal 11 by the first bearing pin 521, afterbody is connected by the first connecting pin 531 with the head of the second lever 512, this first connecting pin 531 is fixedly linked with insulating frame 2, this first lever 511 and the second lever 521 offer the cotter way matched with the first connecting pin 531, and the first lever 511 is connected along the first connecting pin 531 symmetry with the second lever 512, ensure synchronism and the harmony of the first lever 511 and the motion of the second lever 512 thus.
Wherein, the middle part of the second lever 512 is flexibly connected with the bearing pin support 113 on pedestal 11 by the second bearing pin 522, the afterbody of this second lever 512 is connected by the first contiguous block 551 with the head of the 3rd lever 513, the downside of this first contiguous block 551 is connected by the second back-moving spring 542 with pedestal 11, one end of this first contiguous block 551 and the afterbody of the second lever 512 are fixedly linked, the other end offers location notch, the head of the 3rd lever 513 is provided with the alignment pin corresponding with location notch, this first contiguous block 551 is in the shape of the letter V, and the second lever 512 is connected with the center line symmetry of the 3rd lever 513 about the first contiguous block 551, ensure synchronism and the harmony of the second lever 512 and the motion of the 3rd lever 513 thus.
Wherein, the middle part of the 3rd lever 513 is flexibly connected with the bearing pin support 113 on pedestal 11 by the 3rd bearing pin 523, the afterbody of the 3rd lever 513 is connected by the second connecting pin 532 with the head of the 4th lever 514, this second connecting pin 532 is fixedly linked with insulating frame 2,3rd lever 513 and the 4th lever 524 offer the cotter way matched with the second connecting pin 532, and the 3rd lever 513 is connected along the second connecting pin 532 symmetry with the 4th lever 514, ensure synchronism and the harmony of the 3rd lever 513 and the motion of the 4th lever 514 thus.
Wherein, the middle part of the 4th lever 514 is flexibly connected with the bearing pin support 113 on pedestal 11 by the 4th bearing pin 524, the afterbody of the 4th lever 514 is connected by the second contiguous block 552 with the head of the 5th lever 515, the downside of this second contiguous block 552 is connected by the 3rd back-moving spring 543 with pedestal 11, one end of this second contiguous block 552 and the afterbody of the 4th lever 514 are fixedly linked, the other end offers location notch, the head of the 5th lever 515 is provided with the alignment pin corresponding with location notch, this second contiguous block 552 is in the shape of the letter V, and the 4th lever 514 is connected with the center line symmetry of the 5th lever 515 about the second contiguous block 552, ensure synchronism and the harmony of the 4th lever 514 and the motion of the 5th lever 515 thus.
Wherein, the middle part of the 5th lever 515 is flexibly connected with the bearing pin support 113 on pedestal 11 by the 5th bearing pin 525, the afterbody of the 5th lever 515 and insulating frame 2 are movably connected by the 3rd connecting pin 533,3rd connecting pin 533 is fixed on insulating frame 2, the 5th lever 515 offers the cotter way matched with the 3rd connecting pin 533.
First lever 511, second lever 512 of the present invention, the 3rd lever 513, the 4th lever 514 and the 5th lever 515 adopt the mode of this interlock head and the tail to be connected successively, and the motion of all levers 51 all possesses synchronism and harmony, can ensure thus to drive insulating frame 2 to be in the state of level all the time, also the motion namely realizing multiple inserted sheet 3 is consistent, thus makes that inserted sheet 3 is easier to be extracted from the jack of socket.
In addition, by all levers 51 are designed to serial verb construction, when controlling whole lever linkage structure 5, that also can design is more simple.As controlling organization 6 of the present invention comprises control button 61, the upper surface of header body 1 is located at by this control button 61, namely on cover plate 12, the upside that control button 61 is connected one end of the first back-moving spring 541 with the first lever 511 is connected by connecting rod 62, the centre of this first back-moving spring 541 is provided with gag lever post 111, this connecting rod 62 is hollow structure, the lower end of this gag lever post 111 is fixing on the base 11, upper end is run through the first lever 511 and is extended in connecting rod 62, can to the first back-moving spring 541 by gag lever post 111, first lever 511 and connecting rod 62 position, namely the compactness that whole controlling organization 6 coordinates with lever linkage structure 5 and reliability is ensured.
The present invention passes through the cooperation of lever linkage structure 5 and controlling organization 6, can be implemented in normal use procedure, under the elastic force effect of back-moving spring 54, the connecting pin 53 that lever 51 is connected with insulating frame 2 has downward active force, namely make the inserted sheet 3 on insulating frame 2 can be exposed to the downside of pedestal 11 fully, thus ensure normal use of the present invention; When plug pulled up by needs, by pressing control button 61, namely back-moving spring 54 can be compressed, lever 51 can rotate around bearing pin 52, now by the transmission of lever 51, insulating frame 2 upwards can be pushed up, namely make the inserted sheet 3 on insulating frame 2 shrink in pedestal 11, so time can facilitate, pull up plug easily.The present invention is while the convenient plug of realization thus, the panel of the socket coordinated with plug can not bear very large pressure, also namely the present invention in use, do not have very large requirement to socket, therefore the present invention has applied widely and practical advantage.
In the present invention, first connecting pin 531, second connecting pin 532 and the 3rd connecting pin 533 are located on described insulating frame 2 uniformly, in particular, the equilateral triangle structure of insulating frame 2 to be three corners be chamfering, the position, middle on three articles of limits of insulating frame 2 is located at respectively by this first connecting pin 531, second connecting pin 532 and the 3rd connecting pin 533, design can optimize the component distribution of whole header body 1 inside thus, makes structure of the present invention more simple, compact and firm.
Certainly, insulating frame 2 in the present invention does not limit to and triangular structure, and it can also be that circle waits other structures, and the quantity of lever 51 is also not limited to five, meet multiple lever 51 and adopt linked manner, and connecting pin 53 can be carried on the back stably and bears insulating frame 2 and move.
In order to ensure practicality of the present invention further, tensioner spring 7 is provided with above insulating frame 2, insulating frame 2 is connected by tensioner spring 7 with the cover plate 12 of header body 1, given pressure downward for insulating frame 2 one by tensioner spring 7, namely ensure that namely the inserted sheet 3 on insulating frame 2 can reach the downside of pedestal 11 fully, also ensure the reliability that the present invention is connected with socket further.
In order to ensure the stability that insulating frame 2 in the vertical direction moves, the below of insulating frame 2 is provided with positioning tube 21, and this pedestal 11 is provided with the reference column 112 matched with positioning tube 21, makes insulating frame 2 to move stably by the vertical direction thus.Insulating frame 2 offers the through hole 22 corresponding with wire 4, wire 4 is welded on corresponding inserted sheet 3 through through hole 22.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection range of application claims is defined by appending claims and equivalent thereof.
Claims (10)
1. convenience plugs a plug, the inserted sheet comprising header body, be located at the insulating frame of header body inside and be fixed on insulating frame, and one end of described inserted sheet is connected with wire, and the other end extends from the below of header body; It is characterized in that, also comprise lever linkage structure and controlling organization;
Described lever linkage structure comprises the multiple head and the tail connected lever be successively located at around insulating frame, and adjacent two lever symmetries connect, the middle part of described each lever is flexibly connected by bearing pin with header body, one end of described each lever is flexibly connected by connecting pin with insulating frame, and the downside of the other end is connected with the underrun back-moving spring of header body;
Described controlling organization comprises control button, and the upper surface of header body is located at by described control button, and described lever comprises the first lever, and the upside that described control button is connected one end of back-moving spring with the first lever is connected by connecting rod.
2. one according to claim 1 conveniently plugs plug, it is characterized in that, the centre of described back-moving spring is provided with gag lever post, the lower end of described gag lever post is fixed in header body, described connecting rod is hollow structure, and the upper end of the gag lever post corresponding with described connecting rod is run through the first lever and extends in connecting rod.
3. one according to claim 1 conveniently plugs plug, it is characterized in that, described lever also comprises the second lever, 3rd lever, 4th lever and the 5th lever, the downside of the head of described first lever is connected with underrun first back-moving spring of header body, upside is connected by connecting rod with control button, the afterbody of described first lever is connected by the first connecting pin with the head of the second lever, described first connecting pin and insulating frame are fixedly linked, the afterbody of described second lever is connected by the first contiguous block with the head of the 3rd lever, the downside of described first contiguous block is connected with underrun second back-moving spring of jack body, the afterbody of described 3rd lever is connected by the second connecting pin with the head of the 4th lever, described second connecting pin and insulating frame are fixedly linked, the afterbody of described 4th lever is connected by the second contiguous block with the head of the 5th lever, the downside of described second contiguous block is connected with underrun the 3rd back-moving spring of jack body, the afterbody of described 5th lever is connected by the 3rd connecting pin with insulating frame.
4. one according to claim 3 conveniently plugs plug, it is characterized in that, described first connecting pin, the second connecting pin and the 3rd connecting pin are located on described insulating frame uniformly.
5. one according to claim 4 conveniently plugs plug, it is characterized in that, described insulating frame is equilateral triangle structure, and the position, middle on three articles of limits of insulating frame is located at respectively by described first connecting pin, the second connecting pin and the 3rd connecting pin.
6. one according to claim 3 conveniently plugs plug, it is characterized in that, described first lever and the second lever offer the cotter way matched with the first connecting pin, described 3rd lever and the 4th lever offer the cotter way matched with the second connecting pin, described 5th lever offers the cotter way matched with the 3rd connecting pin.
7. one according to claim 3 conveniently plugs plug, it is characterized in that, one end of described first contiguous block and the afterbody of the second lever are fixedly linked, the other end offers location notch, the head of described 3rd lever is provided with the alignment pin corresponding with location notch, one end of described second contiguous block and the afterbody of the 4th lever are fixedly linked, and the other end offers location notch, and the head of described 5th lever is provided with the alignment pin corresponding with location notch.
8. the one according to any one of claim 1 ~ 7 conveniently plugs plug, it is characterized in that, the top of described insulating frame is connected by tensioner spring with header body.
9. one according to claim 8 conveniently plugs plug, it is characterized in that, the below of described insulating frame is provided with positioning tube, and described header body is provided with the reference column matched with positioning tube.
10. one according to claim 8 conveniently plugs plug, it is characterized in that, described insulating frame offers the through hole corresponding with wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510590632.2A CN105161910B (en) | 2015-09-10 | 2015-09-10 | The convenient plug plug of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510590632.2A CN105161910B (en) | 2015-09-10 | 2015-09-10 | The convenient plug plug of one kind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105161910A true CN105161910A (en) | 2015-12-16 |
| CN105161910B CN105161910B (en) | 2017-09-12 |
Family
ID=54802710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510590632.2A Active CN105161910B (en) | 2015-09-10 | 2015-09-10 | The convenient plug plug of one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105161910B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4307136A1 (en) * | 1993-03-06 | 1994-09-08 | Bosch Gmbh Robert | Detachable plug connection |
| JP2003132998A (en) * | 2001-10-19 | 2003-05-09 | Atsushi Yamazaki | Receptacle easy of pulling out of plug |
| CN2593401Y (en) * | 2002-12-13 | 2003-12-17 | 冯超 | Power source plug disengagement apparatus |
| KR20050024530A (en) * | 2003-09-03 | 2005-03-10 | 위정순 | Plug socket for eataching plug |
| CN201820959U (en) * | 2010-10-12 | 2011-05-04 | 宁波唯尔电器有限公司 | Plug easy to unplug |
| CN202145512U (en) * | 2011-08-11 | 2012-02-15 | 李境杰 | Power socket with improved structure |
| KR101303167B1 (en) * | 2011-12-14 | 2013-09-09 | 양용식 | A Plug using A Leverage Effect |
| CN203674475U (en) * | 2013-12-15 | 2014-06-25 | 渭南高新区晨星专利技术咨询有限公司 | Electric plug |
-
2015
- 2015-09-10 CN CN201510590632.2A patent/CN105161910B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4307136A1 (en) * | 1993-03-06 | 1994-09-08 | Bosch Gmbh Robert | Detachable plug connection |
| JP2003132998A (en) * | 2001-10-19 | 2003-05-09 | Atsushi Yamazaki | Receptacle easy of pulling out of plug |
| CN2593401Y (en) * | 2002-12-13 | 2003-12-17 | 冯超 | Power source plug disengagement apparatus |
| KR20050024530A (en) * | 2003-09-03 | 2005-03-10 | 위정순 | Plug socket for eataching plug |
| CN201820959U (en) * | 2010-10-12 | 2011-05-04 | 宁波唯尔电器有限公司 | Plug easy to unplug |
| CN202145512U (en) * | 2011-08-11 | 2012-02-15 | 李境杰 | Power socket with improved structure |
| KR101303167B1 (en) * | 2011-12-14 | 2013-09-09 | 양용식 | A Plug using A Leverage Effect |
| CN203674475U (en) * | 2013-12-15 | 2014-06-25 | 渭南高新区晨星专利技术咨询有限公司 | Electric plug |
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| Publication number | Publication date |
|---|---|
| CN105161910B (en) | 2017-09-12 |
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Effective date of registration: 20191202 Address after: 233010 No. 409 Wuwan Road, Yuhui District, Bengbu City, Anhui Province Patentee after: Bengbu Jinshi New Material Co., Ltd. Address before: High tech Development Zone, Hubei city of Xiaogan province Xiao Han 432000 science and Technology Industrial Park No. 3 Silver Lake Avenue building 212 room Patentee before: XIAOGAN YUANDA NEW MATERIAL TECHNOLOGY CO., LTD. |
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Effective date of registration: 20200526 Address after: 221600 No.19, Tianjin Road, Peixian Economic Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Ximei irrigation and drainage equipment Co., Ltd Address before: 233010 No. 409 Wuwan Road, Yuhui District, Bengbu City, Anhui Province Patentee before: BENGBU JINSHI NEW MATERIAL Co.,Ltd. |
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