CN108444351A - A kind of miniature precision directional blasting instrument - Google Patents
A kind of miniature precision directional blasting instrument Download PDFInfo
- Publication number
- CN108444351A CN108444351A CN201810455361.3A CN201810455361A CN108444351A CN 108444351 A CN108444351 A CN 108444351A CN 201810455361 A CN201810455361 A CN 201810455361A CN 108444351 A CN108444351 A CN 108444351A
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- Prior art keywords
- bar
- rotation
- secondary bar
- miniature precision
- slot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of miniature precision directional blasting instruments, belong to miniature precision explosion field.A kind of miniature precision directional blasting instrument, including fixed outer bar, the fixation outer bar left end internal activity is socketed with rotation mobile jib, the rotation mobile jib right end internal whorl is connected with rotation secondary bar, fixing sleeve is connected to bottom envelope bar inside the fixation outer bar right end, it is installed with protection stock on the right side of the bottom envelope bar, it is tilted on the right side of the protection stock and is installed with positioning brace, the positioning brace right end is installed with fixed quarter butt, the rotation secondary bar, bottom envelope bar is both provided with corresponding through slot with protection stock inner hub location, the positioning brace is internally provided with locating slot；It may be implemented directly directly to drill in designated position, will not generate destruction to other positions, keep bore operation more accurate.
Description
Technical field
The present invention relates to miniature precision explosion fields, more specifically to a kind of miniature precision directional blasting instrument.
Background technology
In practical accurate bursting work, due to being operated at some crucial small-sized positions, so large size can not be used
Drilling work, but when using miniature bur, narrow due to working environment can not make the fitting of entire bored machine make industry
Face operation can only can not just ensure the accuracy of drilling, use the device at this time at this time in the local operation far from operation interface
Precise positioning may be implemented, and can also simultaneously be realized by the device and place detonator operation, realize a kind of instrument completion
Multiple operations reduce operation process, and reduce the case where operation is slipped up.
Invention content
1. technical problems to be solved
For existing in the prior art in accurate bursting work, fixed-point drill can not be carried out to device inside simultaneously by detonator
The problem of placement, the purpose of the present invention is to provide a kind of miniature precision directional blasting instruments, it may be implemented carrying out precision
When the work of bursting work, fixed-point drill is carried out to device inside and places detonator simultaneously.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of miniature precision directional blasting instrument, including fixed outer bar, fixation outer bar left end internal activity socket
There are rotation mobile jib, the rotation mobile jib right end internal whorl to be connected with rotation secondary bar, the fixation outer bar right end inside is solid
Surely it is socketed with bottom envelope bar, protection stock is installed on the right side of the envelope bar of the bottom, is tilted on the right side of the protection stock
It is installed with positioning brace, the positioning brace right end is installed with fixed quarter butt, the rotation secondary bar, bottom envelope
Bar and protection stock inner hub location be both provided with it is corresponding run through slot, the positioning brace is internally provided with locating slot,
Locator is rotatably connected to by rotary shaft inside the locating slot, it is described, it is connected with the second secondary bar in the rotation secondary bar,
Second secondary bar lower end is placed in locating slot, and it is secondary by connecting shaft B and second that rotary shaft side is installed on the locator
Bar bottom end is connected.
Preferably, there are two mounting groove, the bottom is sealed bar and is protected for both sides setting up and down inside the rotation secondary bar
It is both provided with protector corresponding with mounting groove inside shield stock, two mounting groove inside left-ends pass through connecting shaft A
It is connected separately with the first pull rod and the second pull rod, slidably connects the first secondary bar in the protector, under first pull rod
End is connected with the sliding of the first secondary bar, and the second pull rod lower end is connected with the sliding of the second secondary bar, first secondary bar and second
Secondary bar upper end offers firm spacing sliding chamber, and first pull rod and the second pull rod lower end have been fixedly connected with and firm limit
The corresponding firm position limiting slide block of chamber is slided, the protection stock bottom is provided with outlet slot, the protection mobile jib outlet at bottom
Rack is installed with inside at slot, the first secondary bar bottom end is rotatably connected to the rotate gear being meshed with rack, institute
The rotate gear internal whorl stated is connected with rotation swing arm, and the rotation swing arm right end accompanies small-sized detonator.
Preferably, the locator is made of positioning substrate and locating piece, and the locating piece is fixedly connected on positioning substrate
Upper right side, and locating piece is integrally formed with positioning substrate, and drill bit through-hole is offered on the locating piece.
Preferably, the rotate gear is rotatably connected on by fixed link in the first secondary bar, and the rotate gear rotation connects
It is connected in fixed link, threaded hole corresponding with rotation swing arm is offered in the rotate gear, the rotation swing arm upper end is fixed
It is connected with limit mobile bar, limiting slot corresponding with limit mobile bar is offered in the fixed link
Preferably, the fixation outer bar is provided with mounting hole close to right end position, and the mounting hole internal activity is equipped with
Fixed knob.
Preferably, the positioning brace and protection stock and fixed quarter butt are all at 150 ° of angles.
Preferably, the rotation mobile jib, rotation secondary bar, rotate gear and rotation swing arm outer surface are coated with anticorrosion successively
Coating, wear-resistant paint add conductive mica powder and polypyrrole in the anticorrosive coating, wear-resistant paint.
Preferably, torsional spring is socketed in the rotary shaft, the torsional spring both sides are connected to locating slot inner wall and determine
On the device of position.
3. advantageous effect
Compared with the prior art, the advantage of the invention is that：
（1）When carrying out precise orientation bursting work, fixed knob is first unclamped, rotates clockwise rotation mobile jib later to turn
Dynamic secondary bar slowly rises in rotating mobile jib, and the second secondary bar is driven to rise, specified until rotating to make locator start rotation
Position stops, and is fastened and fixed knob later, is at this time directly inserted directly into drill bit in locator by through hole, can directly exist
Designated position directly drills, and will not generate destruction to other positions, keep bore operation more accurate.
（2）After bore operation, directly drill bit is exited back, unclamp fixed button, rotate counterclockwise rotation mobile jib from
And rotation secondary bar is driven slowly to decline in rotating mobile jib, to drive the first pull rod and the second pull rod to decline, first draw at this time
Bar declines in the first secondary bar, will not drive the first secondary bar, but the second secondary bar can directly be driven to decline, to make locator
Start rotation until the stopping of rotation designated position, continue to decline later, the second secondary bar will not be driven at this time, can but drive the first pair
Bar declines, and to make the intermeshing rotation of turning gear wheel and rack, to drive rotate gear to rotate, rotation swing arm is made slowly to stretch
Go out, to reach designated position, small-sized detonator put down, when operating operation, without taking out instrument, then carries out placement operation,
Can directly placement be reached using the instrument to act on, reduce task difficulty, keep operation more accurate, reduce the generation of error.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is configuration schematic diagram of the present invention；
Fig. 3 is cross-sectional view of the present invention；
Fig. 4 is cross-sectional view of the present invention；
Fig. 5 is the first pull rod and the second pull rod status architecture schematic diagram of the invention；
Fig. 6 is rotate gear enlarged structure schematic diagram of the present invention；
Fig. 7 is rotate gear side structure schematic view of the present invention；
Fig. 8 is torsion spring structure diagram of the present invention；
Fig. 9 is the locator structure schematic diagram of the present invention；
Figure 10 is the rotary shaft cross-sectional view of the present invention.
Figure label explanation：
1 rotation mobile jib, 2 mounting holes, 3 fix outer bars, 4 bottoms envelope bar, 5 protection stocks, 6 positioning braces, 7 fix quarter butts, 8 rotation
Secondary bar, 9 fixed knobs, 10 protectors, 11 are through slot, 12 connecting shaft B, 13 first pull rods, 14 second pull rods, 15 connecting shaft A, 16
Mounting groove, 17 outlet slots, 18 first secondary bars, 19 second secondary bars, 20 rotate gears, 21 rotation swing arms, 22 small-sized detonators, 23 teeth
Item, 24 locators, 25 locating slots, 26 rotary shafts, 27 torsional springs, 28 positioning substrates, 29 locating pieces, 30 drill bit through-holes, 31 limiting slots,
32 fixed links, 33 limit mobile bars.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
Embodiment 1：
Please refer to Fig.1-8, a kind of miniature precision directional blasting instrument, including fixed outer bar 3,3 left end internal activity of fixed outer bar
It is socketed with rotation mobile jib 1, rotation 1 right end internal whorl of mobile jib is connected with rotation secondary bar 8,3 right end of fixed outer bar inside fixing sleeve
It is connected to bottom envelope bar 4, protection stock 5 is installed on the right side of bottom envelope bar 4,5 right side of protection stock, which tilts to be installed with, determines
Position brace 6, positioning 6 right end of brace are installed with fixed quarter butt 7, and rotation secondary bar 8, bottom are sealed in 5 inside of bar 4 and protection stock
Heart position be both provided with it is corresponding run through slot 11, positioning brace 6 be internally provided with locating slot 25, pass through rotation inside locating slot 25
Axis 26 is rotatably connected to locator 24, it rotates and is connected with the second secondary bar 19 in secondary bar 8,19 lower end of the second secondary bar is placed in locating slot
26 side of rotary shaft is installed in 25, on locator 24 by connecting shaft B12 to be connected with 19 bottom end of the second secondary bar, can directly referred to
Direct drilling is set in positioning, will not be generated destruction to other positions, be kept bore operation more accurate.
Rotating 8 inside of secondary bar, there are two mounting groove 16, bottom is sealed inside bar 4 and protection stock 5 and is all provided with for both sides setting up and down
It is equipped with protector corresponding with mounting groove 16 10, two 16 inside left-ends of mounting groove are connected separately with by connecting shaft A15
First pull rod 13 and the second pull rod 14, the first secondary bar 18 is slidably connected in protector 10, and 13 lower end of the first pull rod is secondary with first
The sliding of bar 18 is connected, and 14 lower end of the second pull rod is connected with the sliding of the second secondary bar 19, and the first secondary bar 18 and 19 upper end of the second secondary bar are equal
Firm spacing sliding chamber is offered, the first pull rod 13 and 14 lower end of the second pull rod have been fixedly connected with corresponding with firm spacing sliding chamber
Firm position limiting slide block, 5 bottom of protection stock are provided with outlet slot 17, and inside at 5 outlet at bottom slot 17 of mobile jib is protected to be fixedly mounted
There are rack 23,18 bottom end of the first secondary bar to be rotatably connected to the rotate gear 20 being meshed with rack 23,20 inside spiral shell of rotate gear
Line is connected with rotation swing arm 21, and rotation 21 right end of swing arm accompanies small-sized detonator 22, when operating operation, it is not necessary that instrument is taken out, then
Placement operation is carried out, directly can reach placement using the instrument and act on, reduce task difficulty, keep operation more accurate, subtract
The generation of small error.
Rotate gear 20 is rotatably connected on by fixed link 32 in the first secondary bar 18, and rotate gear 20 is rotatably connected on fixation
On bar 32, threaded hole corresponding with rotation swing arm 21 is offered in rotate gear 20,21 upper end of rotation swing arm is fixedly connected limited
Displacement lever 33 offers limiting slot 31 corresponding with limit mobile bar 33 in fixed link 32, while rotate gear 20 rotates
Rotation swing arm 21 is driven to rotate under the action of threaded hole, and rotate gear 20 rotates under the action of fixed link 32 without upper
Lower movement is moved to rotate swing arm 21, convenient for driving small-sized detonator 22 to move.
Fixed outer bar 3 is provided with mounting hole 2 close to right end position, and 2 internal activity of mounting hole is equipped with fixed knob 9, behaviour
When making, retainer instrument can be reached by fixed knob 9, will not make instrument that unnecessary operation error occur, to make operation
Process is safer.
Brace 6 and protection stock 5 and fixed quarter butt 7 are positioned all at 150 ° of angles, can prevent using the instrument when
When waiting positioning, the case where due to reserved space deficiency so that locator can not being released.
Rotation mobile jib 1, rotation secondary bar 8, rotate gear 20 and rotation swing arm 21 outer surface are coated with anticorrosive coating, resistance to successively
Coating is ground, conductive mica powder and polypyrrole are added in anticorrosive coating, wear-resistant paint, so that its working life is increased, and subtract
Less when in use due to work equipment since insufficient strength is broken, or influence of the electrostatic for work when use.
Torsional spring 27 is socketed in rotary shaft 26,27 both sides of torsional spring are connected on 25 inner wall of locating slot and locator 24,
And it can prevent since when step-down operation is not in place after rising, locator 24 can not return to situation in situ and occur.
Operation principle：When carrying out precise orientation bursting work, fixed knob 9 is first unclamped, rotates clockwise rotation master later
Bar 1 is to drive rotation secondary bar 8 slowly to rise in rotating mobile jib 1, to drive the first pull rod 13 and the second pull rod 14 to rise,
At this time since the first pull rod 13 and 14 initial position of the second pull rod are in different location, the first pull rod 13 is in the first secondary bar 18 at this time
Middle rising will not drive the first secondary bar 18, but the second secondary bar 19 can directly be driven to rise, to make locator 24 start to turn
It is dynamic to be fastened and fixed knob 9 later until the stopping of rotation designated position, directly drill bit is inserted directly into calmly by running through slot 11 at this time
It in the device 24 of position, directly can directly drill in designated position, destruction will not be generated to other positions, keep bore operation more smart
It is close, after bore operation, directly drill bit is exited back, unclamps fixed button 9, rotates counterclockwise rotation mobile jib 1 to drive
Rotation secondary bar 8 slowly declines in rotating mobile jib 1, to drive the first pull rod 13 and the second pull rod 14 to decline, first draws at this time
Bar 13 declines in the first secondary bar 18, will not drive the first secondary bar 18, but due to be socketed on connecting shaft A15 torsional spring 27 and in
Connecting shaft B12 connects, and the second secondary bar 19 but can directly be driven to decline, to make locator 24 start rotation until returning to raw bits
It sets, continues to decline later, the second secondary bar 19 will not be driven at this time, can but drive the first secondary bar 18 to decline, to make rotate gear
20 rotate with the intermeshing of rack 23, to drive rotate gear 20 to rotate, rotation swing arm 21 are made slowly to stretch out, referred to reach
Positioning is set, i.e., small-sized detonator 22 is located at through 11 center of slot, and small-sized detonator 22 is put down, and when operating operation, being not necessarily to will
Instrument takes out, then carries out placement operation, directly can reach placement using the instrument and act on, reduce task difficulty, make operation
It is more accurate, reduce the generation of error, and since positioning brace 6 and protection stock 5 and fixed quarter butt 7 are all at 150 ° of angles,
When can prevent from positioning when using the instrument, the feelings due to reserved space deficiency to which locator 24 can not be released
Condition, device are located at 18 bottom of the first secondary bar using preceding first pull rod, 13 initial position, and 14 initial position of the second pull rod is located at second
The difference at 19 top of secondary bar, initial position can reduce conflicting between boring positioning work and placement operation, reduce operation and lose
The security risk of hair is misquoted, torsional spring 27 is socketed on connecting shaft A15 and is connected in connecting shaft B12, it can be more in actual job
Add laborsaving, and can prevent due to when step-down operation is not in place after rising, locator 24 can not return to situation in situ and occur.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Any one skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；Should all it cover within the scope of the present invention.
Claims (8)
1. a kind of miniature precision directional blasting instrument, including fixed outer bar（3）, it is characterised in that：The fixation outer bar（3）It is left
End internal activity is socketed with rotation mobile jib（1）, the rotation mobile jib（1）Right end internal whorl is connected with rotation secondary bar（8）, institute
The fixation outer bar stated（3）Fixing sleeve is connected to bottom envelope bar inside right end（4）, bar is sealed in the bottom（4）Right side is installed with
Protect stock（5）, the protection stock（5）Right side tilts and is installed with positioning brace（6）, the positioning brace（6）
Right end is installed with fixed quarter butt（7）, the rotation secondary bar（8）, bottom seal bar（4）With protection stock（5）Inside center
Position is both provided with corresponding through slot（11）, the positioning brace（6）It is internally provided with locating slot（25）, the positioning
Slot（25）Inside passes through rotary shaft（26）It is rotatably connected to locator（24）, described, the rotation secondary bar（8）On be connected with second
Secondary bar（19）, second secondary bar（19）Lower end is placed in locating slot（25）In, the locator（24）Upper installation rotary shaft
（26）Side passes through connecting shaft B（12）With the second secondary bar（19）Bottom end is connected.
2. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The rotation secondary bar
（8）There are two mounting grooves for the internal setting of both sides up and down（16）, bar is sealed in the bottom（4）With protection stock（5）Inside is respectively provided with
Have and mounting groove（16）Corresponding protector（10）, two mounting grooves（16）Inside left-end passes through connecting shaft A（15）
It is connected separately with the first pull rod（13）With the second pull rod（14）, the protector（10）Inside slidably connect the first secondary bar（18）,
First pull rod（13）Lower end and the first secondary bar（18）Sliding is connected, second pull rod（14）Lower end and the second secondary bar
（19）Sliding is connected, first secondary bar（18）With the second secondary bar（19）Upper end offers firm spacing sliding chamber, and described first
Pull rod（13）With the second pull rod（14）Lower end has been fixedly connected with firm position limiting slide block corresponding with firm spacing sliding chamber, described
Protect stock（5）Bottom is provided with outlet slot（17）, the protection mobile jib（5）Outlet at bottom slot（17）Place is internal to be fixedly mounted
There is rack（23）, first secondary bar（18）Bottom end is rotatably connected to and rack（23）The rotate gear being meshed（20）, institute
The rotate gear stated（20）Internal whorl is connected with rotation swing arm（21）, the rotation swing arm（21）Right end accompanies small-sized detonator
（22）.
3. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The locator（24）By
Position substrate（28）And locating piece（29）Composition, the locating piece（29）It is fixedly connected on positioning substrate（28）Upper right side, and it is fixed
Position block（29）With positioning substrate（28）It is integrally formed, the locating piece（29）On offer drill bit through-hole（30）.
4. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The rotate gear（20）
Pass through fixed link（32）It is rotatably connected on the first secondary bar（18）On, the rotate gear（20）It is rotatably connected on fixed link（32）
On, the rotate gear（20）On offer with rotation swing arm（21）Corresponding threaded hole, the rotation swing arm（21）Upper end is solid
Surely it is connected with limit mobile bar（33）, the fixed link（32）On offer with limit mobile bar（33）Corresponding limiting slot
（31）.
5. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The fixation outer bar
（3）Right end position is provided with mounting hole（2）, the mounting hole（2）Internal activity is equipped with fixed knob（9）.
6. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The positioning brace
（6）With protection stock（5）With fixed quarter butt（7）All at 150 ° of angles.
7. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The rotation mobile jib
（1）, rotation secondary bar（8）, rotate gear（20）With rotation swing arm（21）Outer surface is coated with anticorrosive coating, wear-resistant paint successively,
Conductive mica powder and polypyrrole are added in the anticorrosive coating, wear-resistant paint.
8. a kind of miniature precision directional blasting instrument according to claim 1, it is characterised in that：The rotary shaft（26）
On be socketed with torsional spring（27）, the torsional spring（27）Both sides are connected to locating slot（25）Inner wall and locator（24）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455361.3A CN108444351B (en) | 2018-05-14 | 2018-05-14 | Small-size precision directional blasting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455361.3A CN108444351B (en) | 2018-05-14 | 2018-05-14 | Small-size precision directional blasting instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108444351A true CN108444351A (en) | 2018-08-24 |
| CN108444351B CN108444351B (en) | 2020-04-28 |
Family
ID=63203269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810455361.3A Active CN108444351B (en) | 2018-05-14 | 2018-05-14 | Small-size precision directional blasting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444351B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955432A (en) * | 2018-07-03 | 2018-12-07 | 六安市叶集区鸿钢电力安装工程有限公司 | A kind of miniature precision directional blasting instrument |
| CN112113473A (en) * | 2020-09-21 | 2020-12-22 | 山东鲁桥建设有限公司 | High-safety soft rock blasting device and using method thereof |
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| CN201874451U (en) * | 2010-08-18 | 2011-06-22 | 山西东华机械有限公司 | Drilling device of hydraulic drilling machine |
| CN202976568U (en) * | 2012-12-17 | 2013-06-05 | 过天琪 | Multifunctional teaching pointer |
| WO2015200933A1 (en) * | 2014-05-28 | 2015-12-30 | Van Dyk André | Tunnelling method |
| CN206556523U (en) * | 2017-01-06 | 2017-10-13 | 中铁四局集团第一工程有限公司 | A kind of Tunnel Blasting drilling-hole positioning device |
| CN206891286U (en) * | 2017-05-26 | 2018-01-16 | 中铁四局集团有限公司 | A kind of positioner of snubber angle |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201874451U (en) * | 2010-08-18 | 2011-06-22 | 山西东华机械有限公司 | Drilling device of hydraulic drilling machine |
| CN202976568U (en) * | 2012-12-17 | 2013-06-05 | 过天琪 | Multifunctional teaching pointer |
| WO2015200933A1 (en) * | 2014-05-28 | 2015-12-30 | Van Dyk André | Tunnelling method |
| CN206556523U (en) * | 2017-01-06 | 2017-10-13 | 中铁四局集团第一工程有限公司 | A kind of Tunnel Blasting drilling-hole positioning device |
| CN206891286U (en) * | 2017-05-26 | 2018-01-16 | 中铁四局集团有限公司 | A kind of positioner of snubber angle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108955432A (en) * | 2018-07-03 | 2018-12-07 | 六安市叶集区鸿钢电力安装工程有限公司 | A kind of miniature precision directional blasting instrument |
| CN112113473A (en) * | 2020-09-21 | 2020-12-22 | 山东鲁桥建设有限公司 | High-safety soft rock blasting device and using method thereof |
| CN112113473B (en) * | 2020-09-21 | 2022-07-15 | 山东高速工程建设集团有限公司 | High-safety soft rock blasting device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108444351B (en) | 2020-04-28 |
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Effective date of registration: 20191206 Address after: 518108 No.3, zone 39, Shiyan town center, Bao'an District, Shenzhen City, Guangdong Province (Hongfa Building) (Office) Applicant after: SHENZHEN HONG-YUAN CONSTRUCTION PROJECT CO.,LTD. Address before: 242300 group seven, No. 433, Wang Xi office, Ningguo, Xuancheng, Anhui Applicant before: Fu Huaning |
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Address after: 518000 No.3, area 39, Central District, Shiyan Town, Bao'an District, Shenzhen City, Guangdong Province (Hongfa Building) (Office) Patentee after: Shenzhen Hongyuan Construction Technology Co.,Ltd. Address before: 518108 No.3, area 39, Central District, Shiyan Town, Bao'an District, Shenzhen City, Guangdong Province (Hongfa Building) (Office) Patentee before: SHENZHEN HONG-YUAN CONSTRUCTION PROJECT CO.,LTD. |
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