CN106475968A - It is applied to the percussion release device on axial screw shooter - Google Patents
It is applied to the percussion release device on axial screw shooter Download PDFInfo
- Publication number
- CN106475968A CN106475968A CN201610978775.5A CN201610978775A CN106475968A CN 106475968 A CN106475968 A CN 106475968A CN 201610978775 A CN201610978775 A CN 201610978775A CN 106475968 A CN106475968 A CN 106475968A
- Authority
- CN
- China
- Prior art keywords
- thin portion
- percussion
- diameter
- hole
- release device
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
- B25C1/146—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil operated by a hammer blow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The present invention relates to a kind of axial trigger type screw shooter, it is characterized in that:It is thick portion that banking pin includes bottom, is middle thin portion on thick portion, middle thin portion is thin portion, and thin portion and middle thin portion form stage, forms lower stage between thin portion and thick portion;Groove width is less than middle thin portion diameter, is more than thin portion diameter;Through-hole diameter is less than thick portion diameter, is more than middle thin portion diameter;There is percussion inclined-plane in main set.The beneficial effects of the present invention is:Braking latch structure is changed, original thin portion is decomposed into thin portion and middle thin portion structure, thin portion is made to complete before and after's limit function, thin portion only completes by compression function, this makes it possible to make banking pin integrally to move down degree and reduce (thin portion is located in groove) just can be released, the most direct effect is exactly that taper key structure is readily modified as ring ramp structure, reduces process and assemble difficulty, reduce manufacturing cost, in addition can also cancel the percussion groove design after circumferential registration design and through hole.
Description
Technical field
The invention discloses a kind of percussion release device, it is especially suitable for axial direction screw shooter and uses.
Background technology
Screw shooter is to fire the thrust producing gunpowder explosion generation in nail shooting pill, nail shooting pill as power using firing pin, makes
Bar of pinching moves and nailing is squeezed into the instrument of building body.
Existing screw shooter, its percussion lock principle is:Firing pin passes through striker spring compress energy storage, and (now firing pin is hindered ferrum limit
System).Then cocking, the seesaw of trigger promotes resistance ferrum, under the thrust of spring, the free rapid reach of firing pin, front
End impact nail shooting pill drain pan, makes nail shooting pill explode and produces thrust, impact nailing by bucking bar, fulfil assignment task.
The percussion lock of existing screw shooter, trigger is all to design before handle it is necessary to be moved with palm, such structure side
Formula has the disadvantages that when using:
1. during top surface operation, such as in ceiling operation, workmen must use ladder or scaffold, allows handss energy
Reach the standard of screw shooter trigger position, could construct it is obvious that such work efficiency is extremely low, and the labor of workmen
Fatigue resistance is very big, also has potential safety hazard.
2., during Ground Operation, workmen also must bend over to operate, and so works for a long time, the body of workmen
Chronic injury can be subject to.
3., it is sometimes desirable to the metope of construction during the operation of side, due to the presence of landform restriction or barrier, also make construction
Personnel can not be close, equally there is also the situation of constructional difficulties.
In order to solve the above problems, occur in that axial screw shooter product in recent years, such as the application before the present inventor is special
Profit:The axially percussion screw shooter (patent No.:CN201520748109.3), the shortcoming that just can overcome traditional screw shooter, will be original
Move seesaw with palm and discharge the mode that firing pin mode is changed to circular motion release firing pin in firing pin set, make operator very convenient
Axial force distribution can fulfil assignment, cooperation with extension rod, just smoothly achieve remote operation, thus overcoming originally necessary
The disadvantage of short-range operation.Achieve preferable application effect.
But, in the configuration aspects of existing axial screw shooter, especially fire release device category, exist following
Technical deficiency:
The patent of application before the present inventor:The axially percussion screw shooter (patent No.:CN201520748109.3), possess general
All over the meaning of property, as example, we illustrate:
The critical component of percussion release device is banking pin, and banking pin is installed on hammer, and first has to and fire
Set associated movement, compression mainspring simultaneously stores power, this stage, and banking pin is the equal of connecting between percussion set and hammer
Rigid body connector.After mobile storage power is to setting degree, need release percussion it is necessary to make the connection of banking pin disengaging and percussion set
System, enables the rapid reach that hammer is independent, realizes the rapid strike effect to bucking bar, can hit nail in order to bucking bar
Bullet, completes percussion task.
In order to complete above-mentioned action, use the structure of described below:Banking pin is installed on hammer, its mounting seat
Inside there is top spring, make banking pin be subject to a thrust upwards all the time, and banking pin is stage structure, top is thin portion, bottom
For thick portion, and thin portion top is curved surface;Percussion set is provided with groove, there is a through hole groove end, and through hole rear portion is also hit
Send out groove, the width of groove is less than the diameter of banking pin thin portion, through hole with diameter greater than thin portion diameter and be less than thick portion diameter.
First stage (stores the power stage):Banking pin is located in through hole, and has uptrend in the presence of pushes away spring, but
The stage that thick portion, thin portion are formed is blocked by through hole;Simultaneously as the width of groove, percussion groove is less than the diameter of thin portion, then
Thin portion nor movable, defines the effect of rigid body connector, the anterior power of screw shooter can by fire set-banking pin-
Hammer.
Second stage (percussion stage):In moving process, the taper key (percussion key) of main set inwall can enter percussion groove, and
Touch banking pin top, and oppress it and compress downwards, so that banking pin is integrally moved down, until top is located at percussion set inwall
Interior.At this moment, hammer is just no longer influenced by effect of contraction, moves forward rapidly under mainspring effect.
Phase III (reseting stage):After percussion process terminates, in the presence of back-moving spring, hammer, banking pin phase
Move to after percussion set, when moving on to lead to the hole site after banking pin, will eject again, complete to reset.
View of the above, it will be seen that above-mentioned structure is clearly present following shortcoming:
Fabrication technology is complicated, taper key (percussion key) structure in especially main set, forms larger difficulty in processing
Degree:The diameter of bore of main set is less, can only cut into percussion key, not only working (machining) efficiency is low, and manufactures in the way of wire cutting
Relatively costly, in addition machining accuracy is poor, and roughness is higher, and the quality that such form processing directly affects whole equipment refers to
Mark;The problem of circumferential registration (key, groove cooperation) precision is also existed on whole assembling mode;In order to solve this problem, this
A person of good sense has also applied for patent:Abaculus formula axial direction screw shooter (application number:201610383377.9), key will be fired as external part
It is assembled to master after processing to put, but inherently do not overcome the deficiency.
Content of the invention
It is an object of the invention to provide a kind of percussion release device being applied on axial screw shooter is to make up prior art
Not enough.
The present invention is to realize purpose employed technical scheme comprise that:
A kind of percussion release device being applied on axial screw shooter, including percussion set, hammer and main set, percussion has put
Groove, groove end is through hole;It is provided with hammer under banking pin, banking pin and have top spring;It is characterized in that:
It is thick portion that banking pin includes bottom, is middle thin portion on thick portion, middle thin portion is thin portion, and thin portion is formed with middle thin portion
Upper stage, forms lower stage between middle thin portion and thick portion;
Groove width is less than middle thin portion diameter, is more than thin portion diameter;
Through-hole diameter is less than thick portion diameter, is more than middle thin portion diameter;
There is percussion inclined-plane in main set.
Optimize:Percussion inclined-plane is anchor ring or incomplete anchor ring.
Optimize:Percussion inclined-plane is curved surface;Thin portion top is curved surface.
The beneficial effects of the present invention is:By braking latch structure be changed, original thin portion be decomposed into thin portion with
Thin portion structure, makes middle thin portion complete before and after's limit function, and thin portion only completes by compression function, and thick portion still completes upper limit work(
Energy.This makes it possible to make banking pin integrally to move down degree and reduce (thin portion is located in groove) just can be released, the most direct effect
It is exactly that taper key structure is readily modified as ring ramp structure, reduce process and assemble difficulty, reduce manufacturing cost, in addition can also take
Percussion groove design after the circumferential registration that disappears design and through hole.
Below by embodiment, and the invention will be further described to combine accompanying drawing.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the exploded sketch of Fig. 1.
Fig. 3 is the three-dimensional view of Fig. 2.
Fig. 4 is the structural representation of groove, through hole.
Fig. 5 is the structural representation of banking pin.
Fig. 6 is banking pin lock-out state and groove fit structure schematic diagram.
Fig. 7 is banking pin release conditions and groove fit structure schematic diagram.
Fig. 8 is the installation cooperation schematic diagram of firing pin and hammer.
Fig. 9 is the partial enlarged drawing of Fig. 8.
Figure 10 is the structural representation of hammer.
Specific embodiment
In in figure:1 is percussion set, and 2 is hammer, covers based on 3, and 4 is groove, and 5 is through hole, and 6 is banking pin, and 7 is top spring, 8
For thick portion, 9 is middle thin portion, and 10 is thin portion, and 11 is upper stage, and 12 is lower stage, and 13 is percussion face, and 14 is back-moving spring, and 15 are
Mainspring, 16 is firing pin, and 17 is installing hole, and 18 is annular groove, and 19 is check ring, and 20 is the inner face of installing hole, and 21 is firing pin
The rear end face of head, 27 is the front end face of firing pin head, and 22 is reset guide groove, and 23 is return pin, and 24 is surface of subsidence a, and 25 are
Reset hole, 26 is surface of subsidence b.
Embodiment:
Screw shooter front end is against on matrix and compresses, and percussion set 1 moves backward in main set 3.Now, banking pin 6 is located at
Move in through hole 5, its thin portion 10 drives hammer 2 to be moved rearwards by (as shown in Figure 6) simultaneously.In above-mentioned motor process, hit
Mainspring 15 is compressed by hammer 2.
When moving to setting position, in main set 3, percussion face 13 can touch the top sphere of thin portion 10, makes banking pin 6
Entirety is compressed downwards.
When upper stage 11 is positioned at main set 3 inner periphery, now thin portion 10 is located in through hole 5 (groove 4), due to thin portion 10
Size little, so now, the effect of contraction of banking pin 6 lost efficacy, and hammer 2 drives banking pin 6 fast in the presence of mainspring 15
Speed reach, completes percussion task.As shown in Figure 7.
After percussion process terminates, in the presence of back-moving spring 14, whole member reset, banking pin 6 is in top spring
Under effect, wherein thin portion 9 is located in through hole 5 again.
The another question that the present invention can also solve is:The installation fixed form of firing pin 16 and hammer 2.
Firing pin before and the installation fixed form of hammer are all that pin-and-hole connects, and each percussion pin-and-hole will bear larger
Strength is so that pin-and-hole is easily damaged.
The present invention changes the installation fixed form (as shown in Figure 8) of firing pin 16 and hammer 2:The head of firing pin 16 stretches into peace
In dress hole 17, until the rear end face 21 of firing pin head touches the inner face 20 of installing hole, complete the rear spacing of firing pin 16.This
When, check ring 19 compression is attached to release in annular groove 18, the part that check ring 19 protrudes from annular groove 18 will limit
The front end face 27 of firing pin head, completes the front limit of firing pin 16.So, firing pin 16 will firmly be installed on hammer 2, this
The advantage of sample is, load part is end face, and its damage probability is significantly less than pin-and-hole fit structure.
In addition, as shown in Figure 4:Return pin 23 when resetting, can to reset guide groove 22 end have impact, real
Border use when, such impact can make reset guide groove 22 end oxygen blast cyanidation so that percussion set 1 cannot main set 3
Interior movement, makes whole machine scrap.The present invention covers in the percussion behind reset guide groove 22 end and is provided with surface of subsidence in 1 outer circumferential walls
A24, substantially provides a deformation receiving space, makes oxygen blast cyanidation will not increase the external diameter of percussion set 1, thus overcoming
Above shortcoming.
Also pass through the reset hole 25 on hammer 2 due to return pin 23, so hammer 2 equally also occurs that tympanites become simultaneously
Shape leads to scrap, and based on same mentality of designing, is also provided with surface of subsidence on forward and backward hammer 2 outer wall of reset hole 25
B26, (because the front and back ends of reset hole 25 are intended to stress).As shown in Figure 9.
Claims (7)
1. a kind of percussion release device being applied on axial screw shooter, including percussion set, hammer and main set, percussion has put logical
Groove, groove end is through hole;It is provided with hammer under banking pin, banking pin and have top spring;Hammer front end is provided with firing pin, its feature
It is:
It is thick portion that banking pin includes bottom, is middle thin portion on thick portion, middle thin portion is thin portion, and thin portion and middle thin portion form rank
Platform, forms lower stage between middle thin portion and thick portion;
Groove width is less than middle thin portion diameter, is more than thin portion diameter;
Through-hole diameter is less than thick portion diameter, is more than middle thin portion diameter;
There is percussion face in main set.
2. a kind of percussion release device being applied on axial screw shooter according to claim 1, is characterized in that:Percussion face
It is for inclined-plane or curved surface.
3. a kind of percussion release device being applied on axial screw shooter according to claim 1 and 2, is characterized in that:Hit
Fermentation is anchor ring or incomplete anchor ring.
4. a kind of percussion release device being applied on axial screw shooter according to claim 1 and 2, is characterized in that:Carefully
Portion top is curved surface.
5. a kind of percussion release device being applied on axial screw shooter according to claim 1 and 2, is characterized in that:Hit
Pin is installed on the installation in the hole on hammer, and installing hole inwall has annular groove, has check ring in annular groove, and check ring can limit and hit
The coming off of pin.
6. a kind of percussion release device being applied on axial screw shooter according to claim 1 and 2, is characterized in that:Hit
Reset guide groove is had on hair net, the outer circumferential walls behind reset guide groove end are provided with surface of subsidence a.
7. a kind of percussion release device being applied on axial screw shooter according to claim 1 and 2, is characterized in that:Hit
Reset hole is had on hammer, the forward and backward outer wall of reset hole is provided with surface of subsidence b.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610978775.5A CN106475968A (en) | 2016-11-08 | 2016-11-08 | It is applied to the percussion release device on axial screw shooter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610978775.5A CN106475968A (en) | 2016-11-08 | 2016-11-08 | It is applied to the percussion release device on axial screw shooter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106475968A true CN106475968A (en) | 2017-03-08 |
Family
ID=58271832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610978775.5A Withdrawn CN106475968A (en) | 2016-11-08 | 2016-11-08 | It is applied to the percussion release device on axial screw shooter |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106475968A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109623738A (en) * | 2018-12-08 | 2019-04-16 | 宜宾市南溪区鑫盛技术开发有限公司 | Fixed pin type axial direction nailing device |
CN112060015A (en) * | 2020-09-09 | 2020-12-11 | 南京腾亚精工科技股份有限公司 | Axial ail shooter firing mechanism |
CN112276865A (en) * | 2020-10-19 | 2021-01-29 | 南京腾亚精工科技股份有限公司 | Axial nail gun trigger |
CN113290529A (en) * | 2020-02-21 | 2021-08-24 | 尼特罗塞特有限责任公司 | Apparatus for installing explosively driven fasteners |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2314903Y (en) * | 1997-12-15 | 1999-04-21 | 李正和 | Trigger device for nail firing gun |
CN102120323A (en) * | 2010-01-08 | 2011-07-13 | 上海林荣金属制品有限公司 | Primer mixture free caseless pin driver |
CN104354142A (en) * | 2014-10-22 | 2015-02-18 | 四川南山射钉紧固器材有限公司 | Nail pipe safety appliance for strip nail gun |
CN105196252A (en) * | 2015-09-24 | 2015-12-30 | 宜宾市南溪区科诚机电厂 | Axial-percussive nail shotting device |
CN205343005U (en) * | 2016-02-19 | 2016-06-29 | 绍兴市汉科光电科技有限公司 | Ail shooter of nail adjustable length |
CN205415507U (en) * | 2015-12-15 | 2016-08-03 | 四川南山射钉紧固器材有限公司 | Gunpowder ail shooter suitable for various furred ceilings and on --spot installation |
CN105881455A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区鑫盛技术开发有限公司 | Embedded-block type axial powder-actuated tool |
CN105881454A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区科诚机电厂 | Muffled axial powder-actuated tool |
CN105881453A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区科诚机电厂 | Axial powder-actuated tool with empty shooting prevention function |
CN206527705U (en) * | 2016-11-08 | 2017-09-29 | 宜宾市南溪区科诚机电厂 | Applied to the percussion release device on axial nailing device |
-
2016
- 2016-11-08 CN CN201610978775.5A patent/CN106475968A/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2314903Y (en) * | 1997-12-15 | 1999-04-21 | 李正和 | Trigger device for nail firing gun |
CN102120323A (en) * | 2010-01-08 | 2011-07-13 | 上海林荣金属制品有限公司 | Primer mixture free caseless pin driver |
CN104354142A (en) * | 2014-10-22 | 2015-02-18 | 四川南山射钉紧固器材有限公司 | Nail pipe safety appliance for strip nail gun |
CN105196252A (en) * | 2015-09-24 | 2015-12-30 | 宜宾市南溪区科诚机电厂 | Axial-percussive nail shotting device |
CN205415507U (en) * | 2015-12-15 | 2016-08-03 | 四川南山射钉紧固器材有限公司 | Gunpowder ail shooter suitable for various furred ceilings and on --spot installation |
CN205343005U (en) * | 2016-02-19 | 2016-06-29 | 绍兴市汉科光电科技有限公司 | Ail shooter of nail adjustable length |
CN105881455A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区鑫盛技术开发有限公司 | Embedded-block type axial powder-actuated tool |
CN105881454A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区科诚机电厂 | Muffled axial powder-actuated tool |
CN105881453A (en) * | 2016-06-02 | 2016-08-24 | 宜宾市南溪区科诚机电厂 | Axial powder-actuated tool with empty shooting prevention function |
CN206527705U (en) * | 2016-11-08 | 2017-09-29 | 宜宾市南溪区科诚机电厂 | Applied to the percussion release device on axial nailing device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109623738A (en) * | 2018-12-08 | 2019-04-16 | 宜宾市南溪区鑫盛技术开发有限公司 | Fixed pin type axial direction nailing device |
CN113290529A (en) * | 2020-02-21 | 2021-08-24 | 尼特罗塞特有限责任公司 | Apparatus for installing explosively driven fasteners |
CN112060015A (en) * | 2020-09-09 | 2020-12-11 | 南京腾亚精工科技股份有限公司 | Axial ail shooter firing mechanism |
CN112276865A (en) * | 2020-10-19 | 2021-01-29 | 南京腾亚精工科技股份有限公司 | Axial nail gun trigger |
CN112276865B (en) * | 2020-10-19 | 2024-06-04 | 南京腾亚精工科技股份有限公司 | Percussion device of axial nail gun |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106475968A (en) | It is applied to the percussion release device on axial screw shooter | |
CN206527705U (en) | Applied to the percussion release device on axial nailing device | |
CN105196252A (en) | Axial-percussive nail shotting device | |
CN105881454A (en) | Muffled axial powder-actuated tool | |
CN109940557A (en) | The axial nailing device of quick ejection | |
CN205415507U (en) | Gunpowder ail shooter suitable for various furred ceilings and on --spot installation | |
US4134527A (en) | Powder charge operated apparatus | |
CN205043730U (en) | Axial percussion ail shooter | |
CN207578324U (en) | Axial nailing device | |
CN205043729U (en) | Axial percussion formula ail shooter | |
CN107932434A (en) | Without mainspring nailing device | |
CN102120323A (en) | Primer mixture free caseless pin driver | |
CN210790845U (en) | Firing mechanism and hammering type nail shooter with same | |
CN205674142U (en) | Abaculus formula axial nailing device | |
CN205765975U (en) | Air defense percussion profile shaft is to screw shooter | |
CN105881453A (en) | Axial powder-actuated tool with empty shooting prevention function | |
CN105881455A (en) | Embedded-block type axial powder-actuated tool | |
CN204450440U (en) | New use for explosive formula drives ail shooter | |
CN207682328U (en) | A kind of no mainspring nailing device | |
CN207171980U (en) | Fixed firing pin type nailing device | |
CN112264964B (en) | Nail shooter firing device | |
US20060027087A1 (en) | Firing pin actuation and reset mechanism for a powder actuated setting tool and method | |
CN211053595U (en) | Switch firing device of manual nail gun | |
CN106737423A (en) | Safe nailing device | |
CN205057959U (en) | Automatic bullet device that send of ail shooter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 644100 Fengxiang Street 159, Nanxi District, Yibin City, Sichuan Province Applicant after: Yibin Nanxi District Kemin Electromechanical Co.,Ltd. Address before: 644100 Fengxiang Street 159, Nanxi District, Yibin City, Sichuan Province Applicant before: YIBIN NANXI DISTRICT KECHENG ELECTROMECHANICAL FACTORY |
|
CB02 | Change of applicant information | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170308 |
|
WW01 | Invention patent application withdrawn after publication |