CN208197161U - A kind of tensioning combining mechanism - Google Patents
A kind of tensioning combining mechanism Download PDFInfo
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- CN208197161U CN208197161U CN201820327033.0U CN201820327033U CN208197161U CN 208197161 U CN208197161 U CN 208197161U CN 201820327033 U CN201820327033 U CN 201820327033U CN 208197161 U CN208197161 U CN 208197161U
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- 238000012544 monitoring process Methods 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 8
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- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
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- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model discloses a kind of tensioning combining mechanisms, it includes two tensioning joining racks being oppositely arranged, it is connected with to act against on the tensioning joining rack and abuts against bar on railway plate die, it is corresponding equipped with the stretching rack driven by stretch power mechanism on two opposite tensioning joining racks, the inner end of stretching rack is equipped with the fixation tensioning pawl protruded into for the abnormity nut of the tension rod on railway plate die, tension stress monitoring device is connected on stretching rack, it is rotatably connected on the stretching rack by the driving pivoted housing of locking power device driving rotation, the rotation of driving pivoted housing drives the locking nut on tension rod to rotate and abuts against the side wall of railway plate die.The utility model can clamp tensioning boom end fast and accurately to realize tensioning and can fix tension rod after tensioning, and be consistent multistory reinforced prestressing force, have the advantages that the track plates quality of production is effectively ensured and improve labor efficiency.
Description
Technical field
The utility model relates to a kind of tensioning combining mechanisms.
Background technique
Currently, ballastless track structure form is generally used with the continuous development of China express railway standard of construction.For
The ballastless track structure pattern adapted under different operation conditions is improved, is provided for the going global development strategy of China express railway
Strong technical support, the Ministry of Railways organize III plate-type ballastless track structure of relevant unit's independent research CRTS.
III type track plates of CRTS (pre-stress rail plate) in process of production, are needed to carry out following processing step, be first had to
Clear mould, to guarantee track plates Surface Quality of Concrete, after template is cleaned out, one layer of release agent of even application；Secondly it carries out
The installation lifting of service sleeve, steel reinforcement cage be put into and mantle fiber, after mantle fiber, reinforcing bar just pre-tighten, cushion block is placed into
After carry out reinforced bar stretching, carry out Insulation monitoring after tensioning；Finally, put into concrete into mold and vibrate, steam curing
After put, tear open and demoulding, then carry out water-bath maintenance.
In the technical process of reinforced bar stretching, need to carry out tension to reinforcing bar using stretching machine to make reinforcing bar that there is centainly pre-
Stress, according to the production requirement of pre-stress rail plate, vertically and horizontally reinforcing bar should use single-ended single simultaneous tension mode to track plates, and
It being controlled with single tendon stretch force value, the tensioning of reinforcing bar should uniformly, and loading speed and stretching force all have stringent quantity regulation,
It should be locked after tensioning.I.e. stretching machine needs to complete two work, by reinforced bar stretching and locking, firstly, the end of reinforcing bar
Connection tension rod in portion's (combines the two by first Zhang Gong's skill to pre-tighten), and the end of tension rod is abnormity nut, in stretching process,
The joint head of stretching machine needs to grasp the abnormity nut, and existing stretching machine can not achieve quick and accurate clamping, thus labor
Efficiency of movement is low；Secondly, needing will be fixed on the outside of tension rod and railway plate die, so that reinforcing bar be made to keep during locking
Prestressing force, existing stretching machine can not achieve above-mentioned fixation, thus the problem for be easy to causeing the prestressing force of more reinforcing bars inconsistent,
To make the quality of production of track plates decline.
Utility model content
The technical problems to be solved in the utility model is that in view of the foregoing drawbacks, providing a kind of can fast and accurately clamp tensioning
Boom end makes more to realize tensioning and can fix the pre-stress rail plate reinforced bar stretching machine of tension rod after tensioning
The prestressing force of layer reinforcing bar is consistent.
In order to solve the above-mentioned technical problem, provided tensioning combining mechanism includes two tensioning joining racks being oppositely arranged,
It is structurally characterized in that: the bar that abuts against that can be acted against on railway plate die, two opposite tensioning are connected on the tensioning joining rack
Corresponding equipped with the stretching rack driven by stretch power mechanism on joining rack, the inner end of stretching rack is equipped on railway plate die
The fixation tensioning pawl that the abnormity nut of pull rod protrudes into is connected with tension stress monitoring device, the tensioning joining rack on stretching rack
On be rotatably connected to by locking power device driving rotation driving pivoted housing, drive the rotation of pivoted housing to drive the locking on tension rod
Nut rotates and abuts against the side wall of railway plate die.
After adopting the above structure, the abnormity nut that tension rod itself has is utilized in the utility model, makes abnormity nut position
In fixed tensioning pawl, the fast and accurately clamping of tensioning boom end is realized, and by stretch power mechanism to tension rod
Effective tensioning is carried out, two opposite stretching racks carry out tensioning to same root reinforcing bar, while remembering by tension stress monitoring device
Tension stress is recorded and is detected, to realize the prestressing force of accurate control reinforcing bar, is acted against on railway plate die by abutting against bar,
It can be effectively prevented in the movement of stretching process middle orbit board mold, thus guarantee position of the reinforcing bar in railway plate die, thus
Product quality is improved, additionally by the power drive of locking device, makes to drive pivoted housing rotation to make locking nut rotate, will open
The locking of the position of pull rod and railway plate die, ensure that the prestressing force consistency of more reinforcing bars, improves product quality.
As an improvement, the fixed tensioning pawl includes the corresponding two claw arms for being hinged on stretching rack two sides, the tensioning knot
It closes on frame equipped with claw arm inner end when claw arm inner end is drawn close relatively, two claw arms move out when two claw arms inwardly move
The limit driving device being located remotely from each other.The outer surface of the claw arm is two planes being arranged in turning shape, the limit driving
Device is the limited post being connected on tensioning joining rack, and limited post is fitted on the outer surface of claw arm, when initial position, tensioning
Power mechanism drives stretching rack inwardly to slide, and the position-limiting action that the lateral surface of claw arm encounters limited post makes the inner end of two claw arms
It is located remotely from each other open-shaped state, is caught between the two claws arm for the abnormity nut of tension rod, stretch power mechanism drives tensioning
When frame slides outward, under the position-limiting action of limited post, opposite draw close in claw arm inner end is clamped when two claw arms inwardly move
The abnormity nut realizes the fast and accurately clamping of tensioning boom end.
The stretch power mechanism includes the tensioning oil cylinder being connected on tensioning joining rack, the tension stress monitoring device
The displacement sensor of the skidding distance of stretching rack is monitored including being connected to, and pressure sensing is housed on the piston rod of the tensioning oil cylinder
Device.
The locking power device includes being rotatably connected on the driving pivoted housing tooth driven on tensioning joining rack by power motor
Wheel, the driving pivoted housing outer wall connect and can be sleeved on tension rod with driving pivoted housing gear power, and the inner end of pivoted housing is driven to set
There is the driving rotary head for driving locking nut to rotate.
As a further improvement, the driving pivoted housing includes the driving rotary head and drive sleeve that can be sleeved on tension rod,
Driving rotary head is connect with drive sleeve by self-centering structural dynamic, and drive sleeve passes through spline and driving pivoted housing gear power
Connection, equipped with driving top spring between drive sleeve and tensioning joining rack.The self-centering structure includes being screwed onto driving rotary head
It outer end and is equipped with along the driving symmetrical two centering stud of rotary head, in the driving rotary head and protrudes into drive sleeve and position and centering
The corresponding arms of stud, drive sleeve are equipped with saddle, and saddle can be on saddle equipped with the jack and arms being inserted into for arms
Along drive sleeve radial slippage, being connected by power for driving rotary head and drive sleeve is realized under the cooperation of arms and saddle, it is described
The bottom of centering stud is equipped with the baffle being sleeved on centering stud and the bottom surface of baffle offsets with saddle, baffle and centering stud
Head between equipped with centering top spring.By the setting of above structure, driving rotary head is realized to the locking nut on tension rod
Power drive, to realize the locking of tension rod and railway plate die, and when tension rod and driving rotary head decentraction
(in reality, it is difficult to ensure that every tension rod and driving rotary head are all arranged concentrically), driving rotary head can suitably be swung, and be realized automatic
Centering, so that power drive of the driving rotary head to the locking nut on tension rod be effectively ensured.
In conclusion above scheme has the advantage that the utility model can be pressed from both sides fast and accurately compared with prior art
Tensioning boom end is held to realize tensioning and tension rod can be fixed after tensioning, and keeps multistory reinforced prestressing force
Unanimously, have the advantages that the track plates quality of production is effectively ensured and improve labor efficiency.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram that a kind of embodiment of the utility model is connected on stretching machine；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 be in Fig. 2 A to structural schematic diagram；
Fig. 4 is the stereoscopic schematic diagram of tensioning joining rack internal structure；
Fig. 5 is the structural schematic diagram that locking power device drives driving pivoted housing rotation；
Fig. 6 is the structural schematic diagram of the line B-B section view along Fig. 5；
Fig. 7 is the structural schematic diagram of the line C-C section view along Fig. 6；
Fig. 8 is the structural schematic diagram of railway plate die.
Specific embodiment
As shown in figure 8, the applicant has made a kind of railway plate die 20, substantially to produce pre-stress rail plate
Structure is identical as railway plate die in the prior art, which has die cavity, structure and shape in the die cavity
All in order to make pre-stress rail plate, specific structure is fitted on the side wall of railway plate die 20 and opens without repeating one by one
The end of pull rod 21, tension rod is equipped with abnormity nut 211, can screw this using mechanical system or manual type by spanner
Pull rod, to realize the end of reinforcing bar and the combination of tension rod, existing equipment cannot achieve the quick and accurate of tension rod
Clamping, thus tensioning inefficiency and of poor quality, the middle part of tension rod 21 is additionally provided with the thread segment being exposed on the outside of railway plate die,
Be bolted with locking nut 212 on thread segment, after tension reinforcing steel bar, screw the locking nut on the thread segment, make tension rod with
Railway plate die is fixed, to keep the pretightning force of reinforcing bar, the utility model is exactly to realize above-mentioned stretching process and locked
Journey.
As shown in Figure 1, the utility model gives a kind of embodiment of pre-stress rail plate reinforced bar stretching machine structure, show in figure
What is anticipated out is the structure that the embodiments of the present invention are connected on stretching machine, which includes tensioning rack 1, the tensioning
It is slidably connected in rack 1 on the outside of two opposite side for being oppositely arranged on railway plate die and by of power mechanism driving synchronization lifting
Sliding rack 2 is drawn, is slidably connected in the tensioning rack 1 on the outside of two opposite side for being oppositely arranged on railway plate die and by engine
Structure drives the tensioning sliding rack 2 of synchronization lifting, and the tensioning sliding rack 2 is slidably connected at tensioning by the structure of slide plate and guide rail
In rack 1, naturally it is also possible to be slidably connected using the structure realization of such as guide sleeve and guide post is above-mentioned, the power mechanism includes connecting
It connects in tensioning rack 1 and by the vertical lead screw of engine driving rotation, engine is servo motor, is connected in tensioning sliding rack
There is the screw being screwed on vertical lead screw.In order to improve the stability of tensioning rack and the stability of tensioning sliding rack lifting,
In the present embodiment, the tensioning rack 1 is substantially square comprising four columns, column are connected to ground by foundation bolt
On face, it is connected with connecting cross beam at the top of adjacent two root posts, so that stable tower structure is formed, the tensioning rack
Four corners are respectively provided with vertical lead screw, i.e., four lead screws are arranged altogether, and the vertical lead screw is rotatably connected in column, and phase is arranged altogether
To four tensioning sliding racks of setting, the screw is connected to the both ends of tensioning sliding rack, i.e., is controlled by controller multiple
The synchronous driving lead screw rotation of servo motor, so that tensioning sliding rack be made smoothly to go up and down.
As shown in Figure 1, being connected in tensioning sliding rack 2 by combining slid inside and outside power mechanism drives edge tensioning rack
Draw joining rack 3, in the present embodiment, provided with two pairs of opposite tensioning joining racks 3, i.e., simultaneously to the reinforcing bars of vertical and horizontal into
Row tensioning, railway plate die is placed at the inside and outside middle part for meaning that tensioning rack in the utility model, close to railway plate die
Position is the inside of tensioning rack, far from railway plate die is its outside, tensioning joining rack 3 is slidably connected at tensioning sliding rack
On 2, the combination power mechanism includes the actuator cylinder being connected in tensioning sliding rack 2, the tensioning joining rack 3 and power oil
The piston rod of cylinder is connected by power.
As shown in Figures 1 to 4, it is connected with to act against on the tensioning joining rack 3 and abuts against bar 4 on railway plate die,
It is corresponding equipped with the stretching rack 5 driven by stretch power mechanism on two opposite tensioning joining racks 3, that is, it is opposite to be located at railway plate die
The stretching rack of two sides is oppositely arranged, and two opposite stretching racks can pull the both ends of reinforcing bar simultaneously, and the inner end of stretching rack 5, which is equipped with, to be supplied
The fixation tensioning pawl 6 that the abnormity nut of tension rod on railway plate die protrudes into, the fixed tensioning pawl 6 include that correspondence is hinged on
Two claw arms of stretching rack two sides, on the tensioning joining rack 3 equipped with when two claw arms inwardly move claw arm inner end it is opposite
It draws close, the limit driving device that claw arm inner end is located remotely from each other when two claw arms move out；In the present embodiment, the claw
The outer surface of arm is two planes being arranged in turning shape, and the limit driving device is the limit being connected on tensioning joining rack 3
Column 31, limited post are fitted on the outer surface of claw arm, and when initial position, stretch power mechanism drives stretching rack inwardly to slide,
The position-limiting action that the lateral surface of claw arm encounters limited post makes the inner end of two claw arms be located remotely from each other open-shaped state (i.e. in Fig. 3
State), the abnormity nut 211 of tension rod is caught between the two claws arm, stretch power mechanism drive stretching rack 5 outward slide
When, under the position-limiting action of limited post 31, opposite draw close in claw arm inner end clamps the abnormity spiral shell when two claw arms inwardly move
Mother 211, realizes the fast and accurately clamping of tensioning boom end.Certain above-mentioned limit driving device can also use following knots
Corresponding track is arranged in structure on tensioning joining rack 3, inside and outside two claw arms of fixed tensioning pawl when movement, the limit by track
System, to realize claw arm inner end when claw arm inner end is drawn close relatively, two claw arms move out when two claw arms inwardly move
It is located remotely from each other, in this not go into detail.
Referring to figs. 2 and 3, tension stress monitoring device is connected on stretching rack 5, the stretch power mechanism includes connection
In the tensioning oil cylinder 8 of tensioning joining rack 3, the tension stress monitoring device includes the skidding distance for being connected to monitoring stretching rack 5
Displacement sensor 9, specifically, displacement sensor 9 is connected between piston rod end and the outer wall of tensioning oil cylinder 8, described
Pressure sensor 10 is housed, specifically, which is that piston rod stretches out cylinder sleeve on the piston rod of tensioning oil cylinder 8
The bi-directional drive oil cylinder at both ends, the inner end of piston rod are connect with stretching rack, are arranged land on the piston rod of outer end, piston rod it is outer
End is bolted with screw rod, and above-mentioned pressure sensor is sleeved in land and the outer end of pressure sensor and the head of screw rod offset, and leads to
The monitoring for crossing the displacement sensor and pressure sensor fully ensures that the dynamics of tensioning and the extension elongation of reinforcing bar, that is, guarantees
Reinforcing bar has suitable prestressing force.
With reference to Fig. 2, Fig. 5, Fig. 6 and Fig. 7, it is rotatably connected on the tensioning joining rack 3 and is turned by the driving of locking power device
The rotation of dynamic driving pivoted housing 7, driving pivoted housing 7 drives the locking nut on tension rod to rotate and abuts against the side of railway plate die
Wall.The locking power device includes being rotatably connected on the driving pivoted housing gear driven on tensioning joining rack 3 by power motor 11
12, drive pivoted housing gear to engage with the driving gear on the power output shaft of power motor in the present embodiment, the driving turns
It covers 7 outer walls and connect and can be sleeved on tension rod with driving pivoted housing gear power, the inner end of driving pivoted housing 7, which is equipped with, drives locking screw
The driving rotary head 71 of mother's rotation.The driving pivoted housing 7 includes the driving rotary head 71 and drive sleeve 72 that can be sleeved on tension rod,
In the present embodiment, the end for driving rotary head 71 is cross claw, and the locking nut on above-mentioned tension rod is cross nut, cross
Claw and the cooperation of cross nut drive the locking nut, and driving rotary head 71 is connected with drive sleeve 72 by self-centering structural dynamic
It connects, drive sleeve 72 is connected by power by spline and driving pivoted housing gear 12, is equipped between drive sleeve 72 and tensioning joining rack
Driving top spring 73, after tensioning, power motor starting drives driving pivoted housing gear 12 to rotate, to drive 72 turns of drive sleeve
Dynamic, driving rotary head 71 drives locking nut to rotate, and fixes tension rod with railway plate die, to keep the pretightning force of reinforcing bar.
It is generally known that due in pre-stress rail plate should prefabricated more criss-cross reinforcing bars, thus in multiple driving rotary heads 71 and
In the cohesive process of multiple locking nuts, unavoidable appearance drives the problem of rotary head is with locking nut decentraction, is easy to appear
In conjunction with insecure, in the present embodiment, the self-centering structure includes being screwed onto driving rotary head outer end and along driving rotary head pair
The two centering studs 13 claimed, equipped with protruding into drive sleeve 72 and position is corresponding with stud 13 of feeling relieved slotting in the driving rotary head
Arm, arms is trapezoidal, and drive sleeve 72 is equipped with saddle, saddle be equipped with the jack (jack is also trapezoidal) being inserted into for arms and
Arms can realize driving rotary head and drive sleeve on saddle along drive sleeve radial slippage under the cooperation of arms and saddle
It is connected by power, the bottom of the centering stud is equipped with bottom surface and the saddle phase of the baffle 14 being sleeved on centering stud and baffle
It supports, equipped with centering top spring 15 between baffle 14 and the head for stud of feeling relieved, that is to say, that when driving rotary head is different from locking nut
When the problem of heart occurs, driving rotary head 71 makes to drive rotary head radial slippage certain distance by the fit structure of arms and jack,
Meanwhile top spring compression of feeling relieved, until driving rotary head in conjunction with locking nut, since driving rotary head can be turned in power mechanism
It is dynamic, thus decentraction at any angle, it can all be adjusted, make to drive rotary head in conjunction with locking nut, to be effectively ensured
The process of above-mentioned driving locking nut.
The above is the specific constructive form of the utility model, and the present utility model is not limited to the above embodiments,
For those skilled in the art, equivalent variations and part replacement based on specific structure on the utility model are all practical new at this
In the protection scope of type.
Claims (7)
1. a kind of tensioning combining mechanism, including two tensioning joining racks (3) being oppositely arranged, it is characterized in that: the tensioning joining rack
(3) abutting against bar (4) on railway plate die can be acted against by being connected on, on two opposite tensioning joining racks (3) it is corresponding equipped with by
The stretching rack (5) of stretch power mechanism driving, the inner end of stretching rack (5) are equipped with the special-shaped spiral shell for the tension rod on railway plate die
The fixation tensioning pawl (6) that mother protrudes into is connected with tension stress monitoring device on stretching rack (5), turns on the tensioning joining rack (3)
Dynamic to be connected with by the driving pivoted housing (7) of locking power device driving rotation, the rotation of driving pivoted housing (7) drives the lock on tension rod
Tight nut rotates and abuts against the side wall of railway plate die.
2. tensioning combining mechanism according to claim 1, it is characterized in that: the fixed tensioning pawl includes that corresponding be hinged on is opened
Try to stop people from fighting each other two claw arms of two sides, on the tensioning joining rack (3) equipped with when two claw arms inwardly move claw arm inner end it is opposite
It draws close, the limit driving device that claw arm inner end is located remotely from each other when two claw arms move out.
3. tensioning combining mechanism according to claim 2, it is characterized in that: the outer surface of the claw arm is to set in turning shape
Two planes set, the limit driving device are the limited post (31) being connected on tensioning joining rack (3), and limited post is fitted in card
On the outer surface of pawl arm.
4. tensioning combining mechanism according to claim 1, it is characterized in that: the stretch power mechanism includes being connected to tensioning
Tensioning oil cylinder (8) on joining rack (3), the tension stress monitoring device include be connected to monitoring stretching rack (5) sliding away from
From displacement sensor (9), pressure sensor (10) are housed on the piston rod of the tensioning oil cylinder (8).
5. tensioning combining mechanism described in any one of -4 according to claim 1, it is characterized in that: the locking power device includes
It is rotatably connected on the driving pivoted housing gear (12) driven on tensioning joining rack (3) by power motor (11), the driving pivoted housing (7)
Outer wall connect and can be sleeved on tension rod with driving pivoted housing gear power, and the inner end of driving pivoted housing (7), which is equipped with, drives locking screw
The driving rotary head (71) of mother's rotation.
6. tensioning combining mechanism according to claim 5, it is characterized in that: the driving pivoted housing (7) includes that can be sleeved on to open
Driving rotary head (71) and drive sleeve (72) on pull rod, driving rotary head (71) and drive sleeve (72) pass through self-centering structure
It is connected by power, drive sleeve (72) is connected by power by spline and driving pivoted housing gear (12), drive sleeve (72) and tensioning knot
It closes between frame equipped with driving top spring (73).
7. tensioning combining mechanism according to claim 6, it is characterized in that: the self-centering structure includes being screwed onto driving
Rotary head outer end and along the driving symmetrical two centering studs (13) of rotary head, is equipped in the driving rotary head and protrudes into drive sleeve (72)
And position and centering stud (13) corresponding arms, drive sleeve (72) be equipped with saddle, saddle is equipped with to be inserted into for arms
Jack and arms can realize driving rotary head and driving on saddle along drive sleeve radial slippage under the cooperation of arms and saddle
Sleeve is connected by power, it is described centering stud bottom be equipped be sleeved on centering stud on baffle (14) and the bottom surface of baffle with
Saddle offsets, equipped with centering top spring (15) between baffle (14) and the head for stud of feeling relieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327033.0U CN208197161U (en) | 2018-03-10 | 2018-03-10 | A kind of tensioning combining mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327033.0U CN208197161U (en) | 2018-03-10 | 2018-03-10 | A kind of tensioning combining mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN208197161U true CN208197161U (en) | 2018-12-07 |
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|---|---|---|---|
| CN201820327033.0U Withdrawn - After Issue CN208197161U (en) | 2018-03-10 | 2018-03-10 | A kind of tensioning combining mechanism |
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| CN (1) | CN208197161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274613A (en) * | 2018-03-10 | 2018-07-13 | 山东高速轨道设备材料有限公司 | A kind of tensioning combining mechanism |
-
2018
- 2018-03-10 CN CN201820327033.0U patent/CN208197161U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274613A (en) * | 2018-03-10 | 2018-07-13 | 山东高速轨道设备材料有限公司 | A kind of tensioning combining mechanism |
| CN108274613B (en) * | 2018-03-10 | 2022-08-23 | 山东高速轨道设备材料有限公司 | Tensioning combination mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1020 Changxing Road, Wujing Town Industrial Park, Linqu County, Weifang City, Shandong Province Patentee after: Shandong High Speed Railway Construction Equipment Co., Ltd. Address before: No. 1020 Changxing Road, Wujing Town Industrial Park, Linqu County, Weifang City, Shandong Province Patentee before: SHANDONG HIGH-SPEED RAIL EQUIPMENT MATERIAL CO., LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20220321 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20220321 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |