CN206747944U - A kind of automatic pre- stubborn machine of box cupling - Google Patents
A kind of automatic pre- stubborn machine of box cupling Download PDFInfo
- Publication number
- CN206747944U CN206747944U CN201720501193.8U CN201720501193U CN206747944U CN 206747944 U CN206747944 U CN 206747944U CN 201720501193 U CN201720501193 U CN 201720501193U CN 206747944 U CN206747944 U CN 206747944U
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- box cupling
- seat
- cylinder
- addendum cone
- tong
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Abstract
The utility model belongs to petroleum machinery equipment technical field, more particularly to a kind of automatic pre- stubborn machine of box cupling.A kind of pre- twist-on hoop of mechanical automation is provided to complete to twist the automatic pre- stubborn machine of box cupling of button.In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of automatic pre- stubborn machine of box cupling, including support body, the support body top are sequentially provided with floating back-up tong, box cupling support frame, main pincers by a lateral opposite side；Floating back-up tong clamps oil pipe one end, treats that twist-on hoop is elevated by box cupling support frame, and concentric with main pincers main shaft, main clamp is immediately bound round, and box cupling support frame is fallen, and main pincers drive box cupling rotation with certain speed and axial advancement, box cupling mutually spin after being contacted with tubing round thread.
Description
Technical field
The utility model belongs to petroleum machinery equipment technical field, more particularly to a kind of automatic pre- stubborn machine of box cupling.
Background technology
With big gauging, the technological transformation and enlarging of the newly-built and original factory of sleeve pipe factory, tubing and casing production domesticization
Process has to develop on a large scale very much.In oil, sleeve pipe production process, shackle equipment is to be only second to the key equipment of machine for threading on box cupling,
The quality of shackle directly influences oil, the switching performance of sleeve pipe and sealing property on box cupling.Current standard to different size,
Buckled on the oil of different grade of steels, sleeve pipe and all give strict torque demand, if torque wrench moment is excessive will to squeeze bad oil, sleeve pipe spiral shell
Line, there is thread gluing, influence to be threadedly coupled intensity and sealing；Torque wrench moment deficiency, then can cause to release, thread off, be poorly sealed
Phenomena such as.
The body of oil pipe is connected with box cupling by a chain for binding criminals line, passes through thread screw on and-off machine twist-on bander's sequence in oil pipe production process at this stage
In, it is necessary in the artificial pre- twist-on hoop of the previous station of thread screw on and-off machine.It is pipelining again because box cupling itself is heavier, this station people
Member's labor intensity is very big, and major pipe factory can be incorporated to the automatic pre- stubborn machine of production line to replace artificial pre- twist-on there is an urgent need to one kind
Hoop, to reduce labor intensity, improve operating efficiency.
The content of the invention
In view of the deficienciess of the prior art, technical problem to be solved in the utility model is to provide a kind of machinery certainly
The pre- twist-on hoop of dynamicization is completed to twist the automatic pre- stubborn machine of box cupling of button.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of automatic pre- stubborn machine of box cupling, bag
Support body is included, the support body top is sequentially provided with floating back-up tong, box cupling support frame, main pincers by a lateral opposite side；Floating back-up tong presss from both sides
Tight oil pipe one end, treats that twist-on hoop is elevated by box cupling support frame, and concentric with main pincers main shaft, main clamp is immediately bound round, and box cupling support frame falls
Under, main pincers drive box cupling to rotate simultaneously axial advancement, box cupling and mutually spun after being contacted with tubing round thread with a constant-speed ratio.
The automatic pre- stubborn machine of above-mentioned box cupling, the floating back-up tong is by lower lock spring spiro rod, regulation spring, back-up tong are fixed up and down
Seat, addendum cone cylinder, the seat that fluctuates, clamping jaw, dead axle, left and right floating seat, left and right adjusting spring, the tight spring lever of side chain, addendum cone groove,
Addendum cone, it is oriented to guide pillar, spacing screw shell, clamping cylinder, back-up roller wheel composition；The back-up tong fixed seat is installed on support body,
The cover for seat that fluctuates is provided with lower lock spring spiro rod in back-up tong fixed seat at left and right sides of a bottom of fluctuating,
The regulation spring housing up and down is on lower lock spring spiro rod and upper and lower regulation spring is connected with back-up tong fixed seat bottom surface；It is described
It is oriented to guide pillar and is provided with spacing screw shell located at a bottom of fluctuating, the guiding guide pillar；The left and right floating seat is sheathed on
Fluctuate in seat, the left and right floating seat long side direction two side is flexibly connected back-up roller wheel and the back-up roller wheel is fixed
In a long side direction two side of fluctuating, the left and right floating seat short side direction two side be flexibly connected the tight spring lever of side chain,
And the tight spring lever of side chain is fixed on a short side direction two side of fluctuating, the left and right adjusting spring housing is tight located at side chain
On spring lever；The addendum cone groove is on the floating seat short side direction two side of left and right, and the addendum cone cylinder is located at the seat that fluctuates
On short side direction two side, the addendum cone cylinder head portions are provided with the addendum cone to be fastened with the addendum cone groove；It is fixed that the clamping jaw passes through
Axle is articulated with the floating seat of left and right, and the clamping cylinder drives clamping jaw folding and clamping cylinder is located at left and right floating seat bottom.
The automatic pre- stubborn machine of above-mentioned box cupling, the box cupling support frame by penetrate probe, box cupling bearing, box cupling support base,
Guide pillar, cylinder, spacing threaded sleeve, cylinder rod composition；The box cupling support base is installed on support body, and the box cupling bearing is set
At the top of box cupling support base, the guide pillar is connected on box cupling bearing through box cupling support base, and the cylinder is located at box cupling
The support base bottom and cylinder is connected by cylinder rod with box cupling bearing, the guide pillar bottom is provided with spacing threaded sleeve,
Described pair is penetrated probe on box cupling bearing.
The automatic pre- stubborn machine of above-mentioned box cupling, the main pincers are by claw, T-shaped sliding block, push-and-pull lever, push-and-pull block, pull bar, master
Axle, big roller gear, ring flange, oil cylinder, motor mount, hydraulic motor, final drive shaft, small cylinder gear, encoder, card
Disk, mainframe box, dynamic torque sensor composition；The mainframe box, which is installed on support body, to move forward and backward, and the final drive shaft is worn
Located at mainframe box, described final drive shaft one end connects hydraulic motor by dynamic torque sensor, the final drive shaft other end connects
Encoder, the small cylinder gear is on final drive shaft；The main shaft is arranged in mainframe box, and the main shaft connects big Cylinder Gear
Wheel, the big roller gear engage with the small cylinder gear, pull bar one end connection oil cylinder, the connection of the pull bar other end
Push-and-pull block, the spindle nose connecting chuck, connecting T-shaped sliding block in the chuck are T-shaped sliding block one end connection claw, T-shaped
Push-and-pull lever is connected between the sliding block other end and the push-and-pull block.
The automatic pre- stubborn machine of above-mentioned box cupling, the addendum cone cylinder of the floating back-up tong switchs to fixed when promoting addendum cone to withstand addendum cone groove
Heart shaped state, addendum cone cylinder recover quick condition when driving addendum cone to recall.
The automatic pre- stubborn machine of above-mentioned box cupling, the hydraulic motor are arranged on motor mount, the motor mount peace
Loaded on mainframe box side wall.
The automatic pre- stubborn machine of above-mentioned box cupling, the oil cylinder are installed on ring flange and are connected with pull bar, the ring flange peace
Loaded on main shaft.
The automatic pre- stubborn machine of above-mentioned box cupling, the final drive shaft is with main axis parallel on mainframe box.
The advantages of the utility model box cupling automatic pre- stubborn machine is：
1st, the automatic pre- stubborn machine of the utility model box cupling, realizes the automated production of the pre- twist-on bander sequence of oil pipe, improves
Production work efficiency, human cost input is saved, and then reduced enterprise's Productive statistics and ensure that the person of operating personnel
Safety, while simple to operate, easy to maintenance, the easy popularization of the present invention.
2nd, the automatic pre- stubborn machine of the utility model box cupling, the back-up tong for clamping oil pipe is float design, and main shaft has axial bullet
Property buffer gear, it is ensured that box cupling screw thread and tubing round thread will not thread alternating, can back-off box cupling and oil pipe site error very well.
3rd, the automatic pre- stubborn machine of the utility model box cupling, floating back-up tong design centering machine, solves relocation mechanism position
It is uncertain.Floating back-up tong is socketed to form realization by three layer box bodies and floated, and floating back-up tong can arbitrarily float up and down, according to not
With job requirements adjustment position；When operation at the beginning, addendum cone head into addendum cone groove limit back-up tong float, now back-up tong for rigidity clamping steel
Pipe.When box cupling and steel tube screw thread start to spin completion recognize pull make when addendum cone withdraw from addendum cone groove, it is radially any that back-up tong recovers steel pipe
Float.Back-up tong in steel pipe radial direction any direction due to that can float, it is ensured that caused by steel pipe linearity deficiency itself
Pipe thread matches the problems such as spinning difficulty with box cupling screw thread, and tube bending problem is neutralized by steel pipe floating.
4th, the automatic pre- stubborn machine of the utility model box cupling, according to job requirements, the bearing for lifting box cupling is driven by the cylinder up and down
Lifting, while be oriented to and positioned by guide pillar in lifting process, required according to different-diameter box cupling, adjust guide pillar upper limit set
To adjust final lift height, ensure that box cupling is coaxial with main pincers main shaft after lifting, be easy to main clamp to hold.
Brief description of the drawings
Fig. 1 is the utility model stereogram；
Fig. 2 is the utility model floating back-up tong structural representation；
Fig. 3 is the utility model floating back-up tong top view；
Fig. 4 is the utility model floating back-up tong stereogram；
Fig. 5 is the utility model box cupling support frame front view；
Fig. 6 is the utility model box cupling support frame right view；
Fig. 7 is the utility model box cupling support frame stereogram；
Fig. 8 is the main wrench structure schematic diagram of the utility model；
Fig. 9 is the main pincers stereogram of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment, as shown in Fig. 1,2,3,4,5,6,7,8,9, a kind of automatic pre- stubborn machine of box cupling, including support body 4, the frame
The top of body 4 is sequentially provided with floating back-up tong 1, box cupling support frame 2, main pincers 3 by a lateral opposite side；Treat that the oil pipe of twist-on hoop reaches in advance
After twisting station, floating back-up tong 1 clamps oil pipe one end, the action of floating back-up tong centering machine cylinder, oil pipe is felt relieved in precalculated position,
Treat that twist-on hoop is elevated by box cupling support frame 2, concentric with main pincers main shaft, main pincers 3 are quick under the promotion of oil cylinder 39 to reach box cupling gripping
Position, clamping cylinder action, main pincers 3 clamp box cupling, and box cupling support frame 2 is fallen, and main pincers 3 drive box cupling to rotate simultaneously with a constant-speed ratio
Axial advancement, while main pincers 3 move under the promotion of oil cylinder 39, box cupling mutually spins after being contacted with tubing round thread, and float the back of the body
The release of 1 centering machine is clamped, recovers quick condition, the main dynamic torque sensor 317 clamped on final drive shaft 312 monitors moment of torsion in real time
Change, is as screwed into place in advance when moment of torsion reaches preset value, and box cupling stops operating, and box cupling is unclamped in the action of oil cylinder 39 of main pincers 3, together
When floating back-up tong 1 the action of clamping cylinder 115 unclamp oil pipe, twist-on terminates, and treats that collar oil line can send out pre- stubborn station.
The hydraulic motor 311 is arranged on motor mount 310, and the motor mount 310 is installed on mainframe box 316
Side wall.The oil cylinder 39 is installed on ring flange 38 and is connected with pull bar 35, and the ring flange 39 is installed on main shaft 36.It is described
Final drive shaft 312 is parallel with main shaft 36 on mainframe box 316.
The effect of floating back-up tong 1 is to clamp oil pipe to be twisted.The floating back-up tong 1 by it is lower lock spring spiro rod 11, adjust bullet up and down
Spring 12, back-up tong fixed seat 13, addendum cone cylinder 14, the seat 15 that fluctuates, clamping jaw 16, dead axle 17, left and right floating seat 18, left and right adjusting
The tight spring lever 110 of spring 19, side chain, addendum cone groove 111, addendum cone 112, guiding guide pillar 113, spacing screw shell 114, clamping cylinder
115th, back-up roller wheel 116 forms；The back-up tong fixed seat 13 is installed on support body 4, and the seat 15 that fluctuates is sheathed on back-up tong
In fixed seat 13, lower lock spring spiro rod 11, the regulation spring 12 up and down are provided with left and right sides of the bottom of seat 15 of fluctuating
It is sheathed on lower lock spring spiro rod 11 and regulation spring 12 is connected with the bottom surface of back-up tong fixed seat 13 up and down；The guiding guide pillar 113
Located at the bottom of seat 15 of fluctuating, the guiding guide pillar 113 is provided with spacing screw shell 114；The left and right floating seat 18 is arranged
In in the seat 15 that fluctuates, the long side direction two side of left and right floating seat 18 is flexibly connected back-up roller wheel 116 and the support
Roller 116 is fixed on the long side direction two side of seat 15 of fluctuating, and the short side direction two side of left and right floating seat 18 activity is even
Connect the tight spring lever 110 of side chain and the tight spring lever 110 of the side chain is fixed on the short side direction two side of seat 15 of fluctuating, it is described
Left and right adjusting spring 19 is sheathed on the tight spring lever 110 of side chain；The addendum cone groove 111 is located at the short side direction two of left and right floating seat 18
In side wall, located at fluctuating on the short side direction two side of seat 15, the end of addendum cone cylinder 14 is provided with the addendum cone cylinder 14
The addendum cone 112 to be fastened with the addendum cone groove 111；The clamping jaw 16 is articulated with left and right floating seat 18 by dead axle 17, described
Clamping cylinder 115 drives the folding of clamping jaw 16 and clamping cylinder 115 is located at the bottom of left and right floating seat 18.
The addendum cone cylinder 14 of the floating back-up tong 1 switchs to centering state, addendum cone when promoting addendum cone 112 to withstand addendum cone groove 111
Cylinder 14 recovers quick condition when driving addendum cone 112 to recall.
The effect of box cupling support frame 2 is to lift box cupling to oil pipe concentric position.The box cupling support frame 2 by penetrate probe 21,
Box cupling bearing 22, box cupling support base 23, guide pillar 24, cylinder 25, spacing threaded sleeve 26, cylinder rod 27 form；The box cupling
Support base 23 is installed on support body 4, and the box cupling bearing 22 is passed through and connect located at the top of box cupling support base 23, the guide pillar 24
Hoop support base 23 is connected on box cupling bearing 22, and the cylinder 25 is located at the bottom of box cupling support base 23 and the cylinder 25
It is connected by cylinder rod 27 with box cupling bearing 22, the bottom of guide pillar 24 is provided with spacing threaded sleeve 26, and described pair is penetrated probe 21
On box cupling bearing 22.Under the effect of cylinder 25, box cupling bearing 22 does lifting action.
The main effect of pincers 3 is to drive box cupling to be connected with oil pipe.It is described it is main pincers 3 by claw 31, T-shaped sliding block 32, push-and-pull lever 33,
Push-and-pull block 34, pull bar 35, main shaft 36, big roller gear 37, ring flange 38, oil cylinder 39, motor mount 310, hydraulic motor
311st, final drive shaft 312, small cylinder gear 313, encoder 314, chuck 315, mainframe box 316,317 groups of dynamic torque sensor
Into；The mainframe box 316 is installed on support body 4 and can moved forward and backward, and the final drive shaft 312 is arranged in mainframe box 316, the master
The one end of power transmission shaft 312 connects hydraulic motor 311 by dynamic torque sensor 317, the other end of final drive shaft 312 connects encoder
314, the small cylinder gear 313 is on final drive shaft 312；The main shaft 36 is arranged in mainframe box 316, and the main shaft 36 connects
Big roller gear 37 is connect, the big roller gear 37 engages with the small cylinder gear 313, and the main shaft 36 is hollow shaft, master
Axle 36 and main rotary shaft 312 are in parallel position relationship, the one end of pull bar 35 connection oil cylinder 39, the connection of the other end of pull bar 35
Push-and-pull block 34, the end connecting chuck 315 of main shaft 36, connecting T-shaped sliding block 32 in the chuck 315, the T-shaped sliding block 32 1
Push-and-pull lever 33 is connected between end connection claw 31, the other end of T-shaped sliding block 32 and the push-and-pull block 34.The action of oil cylinder 39 can band
Dynamic claw 31 does clamping and release action, and hydraulic motor 311 drives clamping jaw 31 to rotate.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that specific implementation of the present utility model is not
Limited by above-mentioned embodiment.Those skilled in the art can be on the premise of without departing from the utility model technical concept, to this
Various modification can be adapted or modification for utility model, and these modifications or modification are also fallen within the scope of protection of the utility model certainly.
Claims (8)
- A kind of 1. automatic pre- stubborn machine of box cupling, it is characterised in that：Including support body（4）, the support body（4）Top is by a lateral opposite side It is sequentially provided with floating back-up tong（1）, box cupling support frame（2）, main pincers（3）；Floating back-up tong（1）Oil pipe one end is clamped, treats twist-on hoop quilt Box cupling support frame（2）Elevate, main pincers concentric with main pincers main shaft（3）Clamp box cupling, box cupling support frame（2）Fall, main pincers（3）With One constant-speed ratio drives box cupling to rotate simultaneously axial advancement, box cupling and mutually spun after being contacted with tubing round thread.
- 2. the automatic pre- stubborn machine of box cupling according to claim 1, it is characterised in that：The floating back-up tong（1）By lower lock spring Screw rod（11）, adjust spring up and down（12）, back-up tong fixed seat（13）, addendum cone cylinder（14）, fluctuate seat（15）, clamping jaw （16）, dead axle（17）, left and right floating seat（18）, left and right adjusting spring（19）, the tight spring lever of side chain（110）, addendum cone groove（111）、 Addendum cone（112）, be oriented to guide pillar（113）, spacing screw shell（114）, clamping cylinder（115）, back-up roller wheel（116）Composition；Institute State back-up tong fixed seat（13）It is installed on support body（4）On, the seat that fluctuates（15）It is sheathed on back-up tong fixed seat（13）It is interior, it is described Fluctuate seat（15）Lower lock spring spiro rod is provided with left and right sides of bottom（11）, the regulation spring up and down（12）It is sheathed on lower lock Spring spiro rod（11）Adjust above and up and down spring（12）With back-up tong fixed seat（13）Bottom surface connects；The guiding guide pillar（113）If In the seat that fluctuates（15）Bottom, the guiding guide pillar（113）Provided with spacing screw shell（114）；The left and right floating seat （18）It is sheathed on the seat that fluctuates（15）It is interior, the left and right floating seat（18）Long side direction two side is flexibly connected back-up roller wheel （116）And the back-up roller wheel（116）It is fixed on the seat that fluctuates（15）Long side direction two side, the left and right floating seat （18）Short side direction two side is flexibly connected the tight spring lever of side chain（110）And the tight spring lever of side chain（110）It is fixed on up and down Floating seat（15）Short side direction two side, the left and right adjusting spring（19）It is sheathed on the tight spring lever of side chain（110）On；The top Bore groove（111）Located at left and right floating seat（18）On short side direction two side, the addendum cone cylinder（14）Located at the seat that fluctuates （15）On short side direction two side, the addendum cone cylinder（14）End is provided with and the addendum cone groove（111）The addendum cone to fasten （112）；The clamping jaw（16）Pass through dead axle（17）It is articulated with left and right floating seat（18）On, the clamping cylinder（115）Driving folder Pawl（16）Folding and clamping cylinder（115）Located at left and right floating seat（18）Bottom.
- 3. the automatic pre- stubborn machine of box cupling according to claim 2, it is characterised in that：The box cupling support frame（2）By being visited to penetrating Head（21）, box cupling bearing（22）, box cupling support base（23）, guide pillar（24）, cylinder（25）, spacing threaded sleeve（26）, cylinder Bar（27）Composition；The box cupling support base（23）It is installed on support body（4）On, the box cupling bearing（22）Bottom is supported located at box cupling Seat（23）Top, the guide pillar（24）Through box cupling support base（23）It is connected to box cupling bearing（22）On, the cylinder（25） Located at box cupling support base（23）Bottom and the cylinder（25）Pass through cylinder rod（27）With box cupling bearing（22）Connection, it is described Guide pillar（24）Bottom is provided with spacing threaded sleeve（26）, described pair is penetrated probe（21）Located at box cupling bearing（22）On.
- 4. the automatic pre- stubborn machine of box cupling according to claim 3, it is characterised in that：The main pincers（3）By claw（31）, it is T-shaped Sliding block（32）, push-and-pull lever（33）, push-and-pull block（34）, pull bar（35）, main shaft（36）, big roller gear（37）, ring flange （38）, oil cylinder（39）, motor mount（310）, hydraulic motor（311）, final drive shaft（312）, small cylinder gear（313）, compile Code device（314）, chuck（315）, mainframe box（316）, dynamic torque sensor（317）Composition；The mainframe box（316）It is installed on Support body（4）On can move forward and backward, the final drive shaft（312）It is arranged in mainframe box（316）, the final drive shaft（312）One end Pass through dynamic torque sensor（317）Connect hydraulic motor（311）, final drive shaft（312）The other end connects encoder（314）, The small cylinder gear（313）Located at final drive shaft（312）On；The main shaft（36）It is arranged in mainframe box（316）, the main shaft （36）Connect big roller gear（37）, the big roller gear（37）With the small cylinder gear（313）Engagement, the pull bar （35）One end connects oil cylinder（39）, pull bar（35）The other end connects push-and-pull block（34）, the main shaft（36）End connecting chuck （315）, the chuck（315）Interior connecting T-shaped sliding block（32）, the T-shaped sliding block（32）One end connects claw（31）, T-shaped sliding block （32）The other end and the push-and-pull block（34）Between connect push-and-pull lever（33）.
- 5. the automatic pre- stubborn machine of box cupling according to claim 4, it is characterised in that：The floating back-up tong（1）Addendum cone cylinder （14）Promote addendum cone（112）Withstand addendum cone groove（111）When switch to centering state, addendum cone cylinder（14）Drive addendum cone（112）Recall Shi Huifu quick conditions.
- 6. the automatic pre- stubborn machine of box cupling according to claim 5, it is characterised in that：The hydraulic motor（311）Installed in horse Up to mounting seat（310）On, the motor mount（310）It is installed on mainframe box（316）Side wall.
- 7. the automatic pre- stubborn machine of box cupling according to claim 6, it is characterised in that：The oil cylinder（39）It is installed on ring flange （38）Upper and pull bar（35）Connection, the ring flange（38）It is installed on main shaft（36）On.
- 8. the automatic pre- stubborn machine of box cupling according to claim 7, it is characterised in that：The final drive shaft（312）With main shaft （36）It is parallel to be located at mainframe box（316）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501193.8U CN206747944U (en) | 2017-05-08 | 2017-05-08 | A kind of automatic pre- stubborn machine of box cupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501193.8U CN206747944U (en) | 2017-05-08 | 2017-05-08 | A kind of automatic pre- stubborn machine of box cupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206747944U true CN206747944U (en) | 2017-12-15 |
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ID=60616760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720501193.8U Withdrawn - After Issue CN206747944U (en) | 2017-05-08 | 2017-05-08 | A kind of automatic pre- stubborn machine of box cupling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903504A (en) * | 2017-05-08 | 2017-06-30 | 青岛金邦诚机电设备有限公司 | A kind of automatic pre- stubborn machine of box cupling |
-
2017
- 2017-05-08 CN CN201720501193.8U patent/CN206747944U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903504A (en) * | 2017-05-08 | 2017-06-30 | 青岛金邦诚机电设备有限公司 | A kind of automatic pre- stubborn machine of box cupling |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230203 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230203 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |