CN107575451A - A kind of easy-to-dismount expansion bolt - Google Patents
A kind of easy-to-dismount expansion bolt Download PDFInfo
- Publication number
- CN107575451A CN107575451A CN201710952438.3A CN201710952438A CN107575451A CN 107575451 A CN107575451 A CN 107575451A CN 201710952438 A CN201710952438 A CN 201710952438A CN 107575451 A CN107575451 A CN 107575451A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- extension
- expansion bolt
- easy
- dismount
- 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
Landscapes
- Earth Drilling (AREA)
- Dowels (AREA)
Abstract
A kind of easy-to-dismount expansion bolt, including bolt, sleeve pipe and nut, described sleeve pipe include sleeve sections and expansion arc, and the outer end of described sleeve pipe is provided with the extension to stretch out along sleeve pipe generatrix direction.During installation, expansion bolt is inserted in mounting hole until after required depth, by hand or by instrument by 90 degree of the extension outward bending of sleeve pipe, the second bending segment is bonded with installation wall or ground, can play controlling and restriction effect when subsequently tightening nut to the depth of sleeve pipe and rotation.During dismounting, first back out nut and tap bolt, then broken or levered up the second bending segment, you can by vice or nipper plier it is very convenient, firmly clamp extension end bite, sleeve pipe is outwards extracted into mounting hole.Meanwhile the present invention, without existing expansion bolt production technology is changed, also without increase production procedure, the cutting size or diel that need to only change existing production process middle sleeve can be achieved, therefore will not additionally increase cost relative to existing product.
Description
Technical field
The invention belongs to mechanical engineering technical field, is related to a kind of device for being used to anchor or fix, more particularly to one
The easy-to-dismount expansion bolt of kind.
Background technology
Expansion bolt is made up of parts such as sleeve pipe and bolts, suitable for making anchor on concrete or brick wall, ground
Solid, have the characteristics that easy to use, connection is firm, cheap.As shown in figure 1, be a kind of most widely used, price most
For cheap expansible anchor of metal, including bolt 1, sleeve pipe 2, plain cushion 3, spring pad 4 and nut 5, described sleeve pipe 2 is justified for integral type
Barrel structure, the inner for going deep into wall are provided with the dilatation joint 24 of more than 2, sleeve pipe 2 are divided for sleeve sections 23 and expansion arc 25.Such
After the expansion bolt installation of type, due to the sleeve pipe abundant distending inside wall, it is generally difficult to removed.Particularly
When sleeve pipe integrally gos deep into inside mounting hole, it is difficult to clamp sleeve pipe by instruments such as vice or nipper pliers, only pulled with outside
Bolt at all can not take out setscrew from mounting hole.
To solve the problems, such as that expansion bolt is not easy to remove, Chinese patent CN2011201908858 discloses a kind of expanding screw
Bolt, mounting hole can be pulled out sleeve pipe by the pull bar for being arranged on inside screw, which greatly improves the system of expansion bolt
Cause this, it is difficult to dominate the market on a large scale.Chinese patent CN982218613, CN2016205322862, CN2017200556204
Etc. the dismountable expansion bolt for disclosing several structure proximates, by setting the structure such as step or outer overlap in sleeve pipe outer end, limit
The outer end of sleeve pipe processed enters mounting hole, so as to when dismantling expansion bolt, clamp step or outer with vice or nipper plier
Overlap, sleeve pipe is pulled into out mounting hole.Following drawback be present in the technical scheme：First, step or outer overlap are relatively thin and be close to wall
Body, it is not easy to vice or nipper plier clamping；Second, being limited by step or outer overlap, sleeve pipe is difficult to entirety and enters mounting hole
In, for the thicker wall of heat-insulation layer or decorative layer or ground, the expansion arc of sleeve pipe is possible to be difficult to be deep into concrete or brick
The inside of the blank walls such as body, install failure risk be present；Third, the complex manufacturing that setscrew will be caused, and then cause to produce
The production cost of product improves.
The reason for causing complex manufacturing, is specific as follows：Two kinds of production technologies of sleeve pipe generally use of setscrew are entered
Row large-scale production, the first is from the steel (iron) of suitable diameter and thickness pipe, directly cuts shaping, second is from conjunction
Steel (iron) plate of suitable thickness, first according to mould cutting or punch forming, tubular is then rolled into again, that is, completes processing.For upper
Technical scheme is stated, if setting step or outer overlap in sleeve pipe outer end, the base of shaping must be produced in the existing technological process of production
On plinth, the process that is further added by step welding or punching press forms step or outer by way of welding or punching press in sleeve pipe outer end
Flash structure.Production process increase, necessarily improves production cost.
The content of the invention
The defects of it is an object of the invention to overcome prior art, there is provided a kind of simple production process, cost are cheap, installation
Dependable performance, easy-to-dismount expansion bolt afterwards.
To achieve the above object, present invention employs following technical scheme：
A kind of easy-to-dismount expansion bolt, including bolt 1, sleeve pipe 2 and nut 5, described sleeve pipe 2 include the He of sleeve sections 23
Expansion arc 25；The outer end of described sleeve pipe 2 is provided with the extension 21 to stretch out along the generatrix direction of sleeve pipe 2, the extension 21
Development length is more than the wall thickness of sleeve pipe 2, and the width of the extension 21 is the 1/20 to 1/6 of the circumferential length of sleeve pipe 2.
Further, the extension 21 and the sleeve sections 23 and the integrated punching of expansion arc 25 of sleeve pipe 2 are molded, or one cutting
Shaping.
Further, the end that the extension 21 stretches out is provided with bite 22, and the width of the bite 22 is more than
The width of extension 21.
Further, one kind being shaped as in rectangle, circle, ellipse, triangle, trapezoidal or rhombus of the bite.
Further, extension 21, sleeve sections 23, dilatation joint 24 and the one of expansion arc 25 of the bite 22 and sleeve pipe 2
Punch forming, or integral cutting forming.
Further, the extension 21 of described sleeve pipe 2 can keep not broken with 90 degree of outward bending and after restoring to the original state.
Further, the quantity of the extension 21 is one or more.
Present invention additionally comprises following technical scheme：
A kind of easy-to-dismount expansion bolt, including bolt 1, sleeve pipe 2 and nut 5, described sleeve pipe 2 include the He of sleeve sections 23
Expansion arc 25；The outer end of described sleeve pipe 2 is provided with the extension 21 to stretch out along the generatrix direction of sleeve pipe 2, the extension 21
Development length is more than the wall thickness of sleeve pipe 2, and the width of the extension 21 is 1/20,1/15,1/12, the 1/ of the circumferential length of sleeve pipe 2
10th, 1/8 or 1/6；The end that the extension 21 stretches out is provided with bite 22, and the width of the bite 22 is more than extension
The width of section 21, one kind being shaped as in rectangle, circle, ellipse, triangle, trapezoidal or rhombus of the bite 22.
Further, the sleeve sections 23 of described sleeve pipe 2, expansion arc 25, extension 21 and the shaping of the integrated punching of bite 22, or
Integral cutting forming.
Further, the extension 21 of described sleeve pipe 2 can keep not broken with 90 degree of outward bending and after restoring to the original state.
Further, the quantity of the extension 21 is one or more.
The present invention additionally uses following technical scheme：
A kind of easy-to-dismount expansion bolt, including bolt 1, sleeve pipe 2, spring pad 4 and nut 5, described sleeve pipe 2 include set
Cylinder section 23 and expansion arc 25；The outer end of described sleeve pipe 2 is provided with the extension 21 to stretch out along the generatrix direction of sleeve pipe 2, described to prolong
The development length for stretching section 21 is 1 times, 1.5 times, 2 times, 2.5 times or 3 times of the radius of sleeve pipe 2；The width of the extension 21 is set
1/20,1/15,1/12,1/10,1/8 or the 1/6 of the circumferential length of pipe 2；The end that the extension 21 stretches out is provided with clamping
Point 22, the width of the bite 22 are more than the width of extension 21, and the bite 22 is shaped as rectangle, circle, ellipse
One kind in shape, triangle, trapezoidal or rhombus.
Further, the sleeve sections 23 of described sleeve pipe 2, expansion arc 25, extension 21 and the shaping of the integrated punching of bite 22, or
Integral cutting forming.
Further, the extension 21 of described sleeve pipe 2 can keep not broken with 90 degree of outward bending and after restoring to the original state.
Further, the quantity of the extension 21 is one or more.
A kind of easy-to-dismount expansion bolt of the present invention is inserted expansion bolt in mounting hole until institute when being installed
After needing depth, by hand or by instrument by 90 degree of the extension outward bending of sleeve pipe, make the second bending segment and installation wall or ground
Face is bonded, and during follow-up tightening nut, the second bending segment can play control and restriction effect to the depth of sleeve pipe, and limit
Sleeve pipe processed improves the installation quality and performance of expansion bolt in mounting hole inner rotation, improves reliable during use
Property.When dismantling expansion bolt, nut is backed out first and taps bolt, make bolt is inner to be separated with casing expandable section, then broken
Or lever up the second bending segment, you can by vice or nipper plier it is very convenient, firmly clamp extension end bite,
Sleeve pipe is outwards extracted into mounting hole.The present invention is without existing expansion bolt production technology is changed, also no increase production procedure,
The cutting size or diel that existing production process middle sleeve need to only be changed can be achieved, therefore relative to existing product not
Manufacturing cost can additionally be increased.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the expansion bolt using prior art；
Fig. 2 is a kind of overall structure diagram of easy-to-dismount expansion bolt of the present invention；
Fig. 3 is a kind of overall structure diagram of the sleeve pipe of easy-to-dismount expansion bolt of the present invention；
Fig. 4 is a kind of overall structure diagram of the easy-to-dismount expansion bolt of the present invention in installation process；
Fig. 5 is the structural representation after a kind of easy-to-dismount expansion bolt installation of the present invention；
Fig. 6 is a kind of schematic shapes of the extension bite of easy-to-dismount expansion bolt of the present invention.
Embodiment
Below in conjunction with accompanying drawing 2 to 6, a kind of specific embodiment party of easy-to-dismount expansion bolt of the present invention is further illustrated
Formula.A kind of easy-to-dismount expansion bolt of the present invention is not limited to the following description.
As shown in Figures 2 and 3, a kind of easy-to-dismount expansion bolt, including bolt 1, sleeve pipe 2, plain cushion 3 and nut 5, it is described
Sleeve pipe 2 includes sleeve sections 23 and expansion arc 25.The outer end of described sleeve pipe 2 is provided with the extension to stretch out along the generatrix direction of sleeve pipe 2
Section 21, the end that the extension 21 stretches out is provided with bite 22.The bite and 22 with the extension 21 of sleeve pipe 2,
Sleeve sections 23 and the shaping of the integrated punching of expansion arc 25, or integral cutting forming.
As shown in Figures 4 and 5, the extension 21 of described sleeve pipe 2 has 90 degree of outward bending and kept after restoring to the original state continuous
The characteristic split.Because sleeve pipe 2, in expansion bolt installation process, expansion arc 25 will coordinate with the coniform bottom of bolt 1
Produce deformation and expand laterally, this requires sleeve pipe 2 when producing selection, it is necessary to which selection has sufficiently ductile raw material.
Therefore, extension 21 integrally formed with sleeve pipe 2 also necessarily has identical toughness, it is possible to achieve bending and recovery, and keep
Enough intensity is not broken.During actual use, extension 21 should be along the axis direction outward bending of vertical pipes 2, shape after bending
Into bent angle 212, the first bending segment 211 insertion mounting hole of the rear end of bent angle 212, spacing and control is played to the fitting depth of sleeve pipe 2
Make and use；Second bending segment 213 of the front end of bent angle 212 is bonded with installation wall or ground, has the work(that limiting boot 2 rotates
Energy, improve the installation quality and performance of expansion bolt.The bent angle 212 can go deep into according to the installation of sleeve pipe 2, be arranged on and prolong
Stretch 21 middle optional position of section, and extension 21 and the junction of sleeve sections 23.The design need not change existing expanding screw
Bolt production technology, also without increase production procedure, it is only necessary to change cutting size or the diel of existing production process middle sleeve
It can be achieved, therefore will not additionally increase manufacturing cost relative to existing product.
As an alternative embodiment, the development length of the extension 21 should be greater than the wall thickness of sleeve pipe 2, in order to
Form bent angle 212.A variety of development lengths can be set in the extension 21, expansion bolt is applied to that there is different-thickness to protect
The wall of warm layer or decorative layer or ground, to ensure that sleeve pipe 2 can be positioned at suitable depth in mounting hole as needed, so as to
Ensure that the front end expansion arc 25 of sleeve pipe 2 is combined with blank walls such as concrete or brick bodies.Preferably, the development length of the extension 21
For 1 times of the radius of sleeve pipe 2,1.5 times, 2 times, 2.5 times or 3 times.
As an alternative embodiment, the width of the extension 21 may be configured as the 1/20 of the circumferential length of sleeve pipe 2
To 1/6.The width size of the extension 21 of sleeve pipe 2 will have influence on the convenience of installation or removal expansion bolt.Specifically, work as width
When setting bigger than normal, the radian of extension 21 is larger, intensity is higher, is not easy to be bent into the knuckle 212 to form 90 degree during installation；
When width is set it is less than normal when, extension 21 is difficult to provide enough intensity, is possible to fracture it at knuckle 212 during dismounting,
Or broken when outwards pulling, so as to cause dismounting to fail.Meanwhile extension 21 optimum width set also with expanding screw
The specification of bolt is relevant, and when expansion bolt is relatively large in diameter, the thickness of sleeve pipe 2 is also larger, can suitably reduce the width of extension 21
Degree；Conversely, then need the width of appropriate increase extension 21.With reference to JB/ZQ4763-2006 expansion bolt national standards, by described in
The width of extension 21 is arranged to the standard value such as 1/20,1/15,1/12,1/10,1/8 or 1/6 of the circumferential length of sleeve pipe 2, with difference
The expansion bolt of specification carries out Optimum Matching, refers to following table：
As an alternative embodiment, the bite 22 can be set to different shapes, but to ensure its width
More than the width of extension 21, in order to which the instruments such as vice or nipper plier clamp.As shown in a to f in Fig. 6, the bite
Shape can be rectangle, circle, ellipse, triangle, one kind in trapezoidal or rhombus.Variously-shaped bite 22 has
The advantages of different：A is rectangle, consistent with the shape of jaw, can obtain preferable clamping effect；B is circular, in installation process not
Easily installation surface is caused to wear or damaged；C is ellipse, can be before extension total length is not increased relative to circular b
Put, there is provided bigger holding area；D is triangle, and two base angles of triangle can be recessed with jaw in unloading process
Groove combines, and its drift angle is advantageous to be tilted by instruments such as flat mouth screwdrivers when obtaining preferably clamping effect, while dismantling
And separated with metope；E is isosceles trapezoid, and underlying two acute angles can also be combined with the groove of jaw, preferably be pressed from both sides
Holding effect fruit, while its total length is less than the technical scheme using triangle；F is rhombus, and the drift angle of both sides can be in unloading process
In combined with the groove of jaw, its drift angle is advantageous to utilize flat mouth screwdriver etc. when obtaining preferably clamping effect, while dismantling
Instrument is tilted and separated with mounting surface.
As an alternative embodiment, the extension 21 could be arranged to one or symmetrical multiple.Its purpose
It is, by setting multiple extensions 21, control and restriction effect of the extension 21 to sleeve pipe 2 in installation process can be strengthened.
The application method of the present invention is as follows：
During installation, expansion bolt is inserted first in the mounting hole of wall 6 until required depth；Then by hand or by work
90 degree of the extension outward bending of sleeve pipe is formed knuckle (as shown in Figure 4) by tool, the second bending segment is bonded with mounting surface；Finally
Tightening nut is fixed, and the effect after fixing is as shown in Figure 5.During tightening nut, the second bending segment can be to the depth of sleeve pipe
Degree plays control and restriction effect, and limiting boot improves the installation quality and property of expansion bolt in mounting hole inner rotation
Energy.
During dismounting, nut is backed out first and taps bolt, make bolt is inner to be separated with casing expandable section, then broken by hand
Or lever up the second bending segment by instruments such as flat mouth screwdrivers, you can by vice or nipper plier it is very convenient, firmly press from both sides
The bite of tight extension end, mounting hole is outwards extracted by sleeve pipe.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (7)
1. a kind of easy-to-dismount expansion bolt, including bolt, sleeve pipe and nut, described sleeve pipe includes sleeve sections and expansion arc,
It is characterized in that：The outer end of described sleeve pipe is provided with the extension to stretch out along sleeve pipe generatrix direction, the extension of the extension
Length is more than the wall thickness of sleeve pipe, and the width of the extension is the 1/20 to 1/6 of sleeve pipe circumferential length.
2. easy-to-dismount expansion bolt according to claim 1, it is characterised in that：The extension and the sleeve of sleeve pipe
Section and the shaping of expansion arc integrated punching, or integral cutting forming.
3. easy-to-dismount expansion bolt according to claim 1, it is characterised in that：The end that the extension stretches out
End is provided with bite, and the width of the bite is more than the width of extension.
4. easy-to-dismount expansion bolt according to claim 3, it is characterised in that：The bite is shaped as square
One kind in shape, circle, ellipse, triangle, trapezoidal or rhombus.
5. easy-to-dismount expansion bolt according to claim 3, it is characterised in that：The extension of the bite and sleeve pipe
Section, sleeve sections and the shaping of expansion arc integrated punching, or integral cutting forming.
6. the easy-to-dismount expansion bolt according to any claim in claim 1 to 5, it is characterised in that：It is described
The extension of sleeve pipe can keep not broken with 90 degree of outward bending and after restoring to the original state.
7. easy-to-dismount expansion bolt according to claim 6, it is characterised in that：The quantity of the extension is one
It is or multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952438.3A CN107575451B (en) | 2017-10-13 | 2017-10-13 | A kind of easy-to-dismount expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952438.3A CN107575451B (en) | 2017-10-13 | 2017-10-13 | A kind of easy-to-dismount expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575451A true CN107575451A (en) | 2018-01-12 |
| CN107575451B CN107575451B (en) | 2019-11-01 |
Family
ID=61037230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710952438.3A Active CN107575451B (en) | 2017-10-13 | 2017-10-13 | A kind of easy-to-dismount expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575451B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963426A (en) * | 2021-02-01 | 2021-06-15 | 中建三局集团有限公司 | Recyclable quick-release bolt for fixing template and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110144766A1 (en) * | 2008-06-19 | 2011-06-16 | Shreedhar Kale | Allograft Bone Plugs, Systems and Techniques |
| CN203926273U (en) * | 2014-04-03 | 2014-11-05 | 上海电机学院 | A kind of setscrew |
| CN104235141A (en) * | 2014-10-08 | 2014-12-24 | 张永兰 | Expansion bolt |
| US20160074927A1 (en) * | 2013-11-19 | 2016-03-17 | Fu-Chuan Hsu | Self-drilling expansion fastener and method of forming same |
| CN206429502U (en) * | 2017-01-16 | 2017-08-22 | 朱彬鹏 | A kind of dismountable expansion bolt |
-
2017
- 2017-10-13 CN CN201710952438.3A patent/CN107575451B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110144766A1 (en) * | 2008-06-19 | 2011-06-16 | Shreedhar Kale | Allograft Bone Plugs, Systems and Techniques |
| US20160074927A1 (en) * | 2013-11-19 | 2016-03-17 | Fu-Chuan Hsu | Self-drilling expansion fastener and method of forming same |
| CN203926273U (en) * | 2014-04-03 | 2014-11-05 | 上海电机学院 | A kind of setscrew |
| CN104235141A (en) * | 2014-10-08 | 2014-12-24 | 张永兰 | Expansion bolt |
| CN206429502U (en) * | 2017-01-16 | 2017-08-22 | 朱彬鹏 | A kind of dismountable expansion bolt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963426A (en) * | 2021-02-01 | 2021-06-15 | 中建三局集团有限公司 | Recyclable quick-release bolt for fixing template and use method thereof |
| CN112963426B (en) * | 2021-02-01 | 2022-06-17 | 中建三局集团有限公司 | Recyclable quick-release bolt for fixing template and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107575451B (en) | 2019-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102950217B (en) | The forming method of special-shaped pipe end and special-shaped die of clamping dies used | |
| CN107575451A (en) | A kind of easy-to-dismount expansion bolt | |
| JP2013049061A (en) | Method for production of weld steel pipe, and the weld steel pipe | |
| CN202087858U (en) | Adjustable special clamp for thinning inner wall of opening syphon | |
| JP2010167440A (en) | Method of correcting shape of pipe end of uoe metallic pipe | |
| CN102773815B (en) | A kind of weldment coaxiality tool | |
| KR101635764B1 (en) | Adjustable length connection socket | |
| CN109667819A (en) | A kind of dismountable expansion bolt casing | |
| CN206999682U (en) | A kind of portable domestic pipeline maintenance instrument | |
| CN203426297U (en) | Clamp used for bending pipe | |
| CN202239321U (en) | Special-shaped die of clamping dies | |
| US20100313627A1 (en) | Split Die | |
| JP2002178026A (en) | Manufacturing method for uoe pipe | |
| CN202349390U (en) | Fixing clip capable of quickly installing pipe | |
| CN206811003U (en) | A kind of swollen height regulating device and electric tube expander | |
| US2797726A (en) | Flanging tool for forming radial flanges | |
| JP2009180360A (en) | Tapered screw member and its manufacturing method | |
| JP5036356B2 (en) | Pipe bending method and apparatus | |
| CN110586779B (en) | Bulging tool for isolating pipe of high-pressure cooler | |
| WO2015158075A1 (en) | Ellipticity-controllable flanged connecting pipe | |
| CN209986833U (en) | Pipe blocking device convenient to disassemble and maintain and used for producing seamless steel pipes | |
| CN1947882A (en) | Method for producing flat heat-radiating tubes | |
| CN203765579U (en) | Corrugated press pliers | |
| CN204503875U (en) | The swan neck system of adjustable flexibility | |
| CN210358763U (en) | Corrugated pipe single-wave forming tool for solar energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191011 Address after: No.1, No.7 Middle School, ximailiantang village, Nan'an City, Quanzhou City, Fujian Province Applicant after: Chen Shaojun Address before: Room 303, No. 1, amber County, No. 20, Xiguan Road, North Street of Changping District City, Beijing City, Beijing Applicant before: Deng Weina |
|
| TA01 | Transfer of patent application right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221206 Address after: 214261 Scientific Innovation Park on the West Bank of Taihu Lake, Zhoutie Town, Yixing City, Wuxi City, Jiangsu Province 23-101 Patentee after: Yixing Mingying Standard Parts Co.,Ltd. Address before: No. 1, No. 7 Middle School, Ximeiliantang Village, Nan'an City, Quanzhou City, Fujian Province, 362399 Patentee before: Chen Shaojun |
|
| TR01 | Transfer of patent right |