CN215926861U - Tunnel side wall crack reinforcing apparatus - Google Patents
Tunnel side wall crack reinforcing apparatus Download PDFInfo
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- CN215926861U CN215926861U CN202122535265.XU CN202122535265U CN215926861U CN 215926861 U CN215926861 U CN 215926861U CN 202122535265 U CN202122535265 U CN 202122535265U CN 215926861 U CN215926861 U CN 215926861U
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 4
- 230000007547 defect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a tunnel side wall crack reinforcing device which comprises a tunnel side wall body, wherein side wall cracks are arranged on the right side of the tunnel side wall body, two inserting grooves formed in the right side of the tunnel side wall body are formed in the front side and the rear side of each side wall crack, clamping grooves are formed in the inner wall of one side, close to each other, of the two inserting grooves opposite to each other up and down, and a quick-mounting reinforcing device is arranged on the right side of the tunnel side wall body; the quick-mounting reinforcing device comprises a reinforcing plate which is movably contacted with the right side of the tunnel side wall body. The rapid fixing device is simple and convenient to operate, the clamping mode of realizing different orientations with the inserted rod by rapidly driving the clamping block to extend out can avoid the phenomenon that the inserted rod is loosened and separated due to impact factors such as vibration, and the like, so that the reinforcing plate can be conveniently and rapidly and stably fixed, the falling risk of the reinforcing plate is reduced, the stability of reinforcing work is improved, the reinforcing plate can be conveniently and rapidly disassembled and assembled, the follow-up overhaul work of personnel on cracks is facilitated, and the use requirements are met.
Description
Technical Field
The utility model relates to the technical field of crack reinforcement, in particular to a tunnel side wall crack reinforcement device.
Background
The road tunnel passes through a mountain body, the engineering geology and hydrology conditions are complex, and due to the limitation of design and construction technology, different problems often occur in the constructed road tunnel, when rock mass around the tunnel is broken and water seepage is high, the arch waist of the tunnel is excessively extruded, so that cracks occur in the side wall of the tunnel, the quality of the tunnel is affected, and then people begin to reinforce the cracks of the side wall of the tunnel, the common reinforcing mode is that reinforcing is performed by fixing reinforcing plates at two sides of the cracks, and the fixing mode is that a plurality of bolts or fixing cones are used for fixing;
the existing tunnel side wall crack reinforcing device has the advantages that the reinforcing plate is fixed by the bolts or the fixing cones, so that the stability is low, and the reinforcing plate is easily loosened and falls off due to the influence of impact factors such as vibration and the like, so that the reinforcing plate falls off and the reinforcing effect is lost; the device has the defect that the reinforcing plate cannot be conveniently and quickly stably fixed, and the using requirement cannot be met, so that the device for reinforcing the cracks of the side wall of the tunnel is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a tunnel side wall crack reinforcing device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a tunnel side wall crack reinforcing device comprises a tunnel side wall body, wherein side wall cracks are arranged on the right side of the tunnel side wall body, two inserting grooves formed in the right side of the tunnel side wall body are formed in the front side and the rear side of each side wall crack, clamping grooves are formed in the inner wall, close to each other, of one side of each inserting groove, opposite to each other up and down, and a quick-mounting reinforcing device is arranged on the right side of the tunnel side wall body;
the fast-assembly reinforcing device comprises a reinforcing plate which is in movable contact with the right side of a tunnel side wall body, the left side of the reinforcing plate is fixedly connected with four insertion rods in a rectangular shape, the insertion rods are clamped with corresponding insertion grooves, rectangular grooves are formed in the sides, close to each other, of the two insertion rods which are opposite up and down, clamping blocks matched with the corresponding clamping grooves are sleeved in the rectangular grooves in a sliding mode, springs are fixedly connected between the inner walls, far away from the openings, of the rectangular grooves and the corresponding clamping blocks, first grooves, with the right sides being provided with the openings, are formed in the sides, far away from each other, of the two clamping blocks which are opposite up and down, the right side of the reinforcing plate is fixedly connected with two rectangular boxes, with the left sides being provided with the openings, two rectangular grooves are formed in the right side of the reinforcing plate, a movable rod is in movable contact with the inner wall of the right side of each rectangular box, two extrusion driving mechanisms are fixedly connected with the left sides of the movable rods, and the left ends of the extrusion driving mechanisms extend into the corresponding rectangular grooves, the extrusion driving mechanism is hinged to the inner wall, close to the clamping groove, of one side of the corresponding first groove, the rectangular groove is rotatably installed on the inner wall, away from the opening, of one side of the rectangular groove, the right side of the threaded driving mechanism extends to the outside of the corresponding rectangular box, and the moving rod is sleeved on the corresponding threaded driving mechanism in a threaded mode.
Preferably, extrusion actuating mechanism includes the connecting rod that horizontal pole and slope set up, and two relative connecting rod symmetries from top to bottom set up, the right-hand member of horizontal pole and the left side fixed connection of the carriage release lever that corresponds, the left end of horizontal pole extend to the rectangular channel that corresponds in, the both ends of connecting rod are articulated mutually with the one side that the horizontal pole that corresponds is close to the draw-in groove and the one side inner wall that first recess is close to the draw-in groove respectively.
Preferably, the thread driving mechanism comprises a screw, a knob and four handle bars, the left end of the screw is rotatably mounted with the inner wall of the left side of the corresponding rectangular groove, the right end of the screw extends out of the corresponding rectangular box and is fixedly connected with the left side of the knob, the moving bar is sleeved on the corresponding screw in a thread manner, and the top, the bottom, the front side and the rear side of the knob are respectively fixedly connected with the corresponding handle bars.
Preferably, the tapered structure is established to one side that two fixture blocks relative from top to bottom are close to each other, and the second recess has all been seted up to one side that two fixture blocks relative from top to bottom kept away from each other, and its open-ended one side inner wall is kept away from to the second recess and the one end fixed connection that the draw-in groove is close to with the spring that corresponds.
Preferably, a first square hole in sliding connection with the outer side of the corresponding cross rod is formed in the inner wall of the right side of the rectangular groove.
Preferably, the left side of the reinforcing plate is provided with two second square holes which are respectively connected with the outer sides of the corresponding cross rods in a sliding manner.
Preferably, the right side of the moving rod is provided with a threaded hole in threaded connection with the corresponding screw.
Preferably, a rotating groove is formed in the inner wall of the left side of the rectangular groove, a first bearing is fixedly sleeved in the rotating groove, a rotating hole is formed in the inner wall of the right side of the rectangular box, a second bearing is fixedly sleeved in the rotating hole, and the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved with the outer side of the corresponding screw rod.
Compared with the prior art, the utility model has the beneficial effects that:
the reinforcing plate is moved leftwards through the matching of the tunnel side wall body, the inserting grooves, the clamping grooves, the reinforcing plates, the inserting rods, the rectangular grooves, the rectangular boxes, the second grooves, the clamping blocks, the springs, the first grooves, the transverse rods, the connecting rods, the moving rods, the screw rods and the knobs with the rectangular grooves, the reinforcing plate drives the four inserting rods to be respectively inserted into the corresponding inserting grooves, the knob is rotated forwards to drive the corresponding screw rods to rotate, the rotation of the screw rods can drive the corresponding moving rods to move leftwards, the moving rods drive the corresponding two transverse rods to move leftwards, the transverse rods drive the corresponding connecting rods to obliquely rotate and extrude the clamping blocks, under the extrusion force, the fixture blocks extend out of the corresponding clamping grooves and are clamped into the corresponding clamping grooves, the springs are stretched, and the phenomenon that the inserting rods are loosened and separated due to impact factors such as vibration can be avoided through the clamping mode that the fixture blocks and the corresponding inserting rods are in different directions, so that the fixing stability of the reinforcing plate is improved;
when the reinforcing plate needs to be disassembled to overhaul a crack subsequently, the knob is rotated reversely to drive the screw to rotate, the cross rod is changed to move back to the right and drives the corresponding connecting rod to rotate to loosen the extrusion force on the clamping block, the spring in a stretching state drives the corresponding clamping block to be separated from the clamping groove, the clamping is removed, and the reinforcing plate can be moved to the right to drive the four inserting rods to be separated from the corresponding inserting grooves respectively, so that the reinforcing plate is convenient to disassemble and assemble by personnel.
The rapid fixing device is simple and convenient to operate, the clamping mode of realizing different orientations with the inserted rod by rapidly driving the clamping block to extend out can avoid the phenomenon that the inserted rod is loosened and separated due to impact factors such as vibration, and the like, so that the reinforcing plate can be conveniently and rapidly and stably fixed, the falling risk of the reinforcing plate is reduced, the stability of reinforcing work is improved, the reinforcing plate can be conveniently and rapidly disassembled and assembled, the follow-up overhaul work of personnel on cracks is facilitated, and the use requirements are met.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a crack reinforcing device for a side wall of a tunnel according to the present invention;
FIG. 2 is a schematic diagram of a right-view structure of a quick-mounting reinforcing device for a tunnel side wall crack reinforcing device according to the present invention;
FIG. 3 is an enlarged view of part A of FIG. 1;
fig. 4 is a schematic sectional structural view of a quick-mounting reinforcing device of a tunnel side wall crack reinforcing device according to the present invention.
In the figure: 100 tunnel side wall bodies, 101 inserting grooves, 102 clamping grooves, 1 reinforcing plate, 2 inserting rods, 3 rectangular grooves, 4 rectangular boxes, 5 second grooves, 6 clamping blocks, 7 springs, 8 first grooves, 9 cross rods, 10 connecting rods, 11 moving rods, 12 screw rods, 13 knobs and 14 rectangular grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a tunnel side wall crack reinforcing device comprises a tunnel side wall body 100, a side wall crack is arranged on the right side of the tunnel side wall body 100, two insertion grooves 101 formed in the right side of the tunnel side wall body 100 are formed in the front side and the rear side of the side wall crack, a clamping groove 102 is formed in the inner wall of one side, close to each other, of the two insertion grooves 101 opposite to each other up and down, and a quick-mounting reinforcing device is arranged on the right side of the tunnel side wall body 100;
the fast-assembling type reinforcing device comprises a reinforcing plate 1 which is in movable contact with the right side of a tunnel side wall body 100, four inserting rods 2 are fixedly connected to the left side of the reinforcing plate 1 in a rectangular shape, the inserting rods 2 are clamped with corresponding inserting grooves 101, rectangular grooves 14 are formed in the sides, close to each other, of the two inserting rods 2 which are opposite up and down, clamping blocks 6 which are matched with corresponding clamping grooves 102 are sleeved in the rectangular grooves 14 in a sliding mode, springs 7 are fixedly connected between the inner walls, far away from the openings, of the rectangular grooves 14 and the corresponding clamping blocks 6, first grooves 8 which are arranged in a mode that the right sides are provided with openings are formed in the sides, far away from each other, of the two clamping blocks 6 which are opposite up and down, a rectangular box 4 which is arranged in a mode that the left sides of the reinforcing plate 1 are both provided with openings, two rectangular grooves 3 are formed in the right side of the reinforcing plate 1, a movable rod 11 is in movable contact with the inner walls on the right sides of the rectangular box 4, and two extrusion driving mechanisms are fixedly connected to the left sides of the movable rod 11, the left end of each extrusion driving mechanism extends into the corresponding rectangular groove 14, each extrusion driving mechanism is hinged with the inner wall of one side, close to the clamping groove 102, of the corresponding first groove 8, a thread driving mechanism is rotatably mounted on the inner wall of one side, far away from the opening, of each rectangular groove 3, the right side of each thread driving mechanism extends out of the corresponding rectangular box 4, and the movable rod 11 is sleeved on the corresponding thread driving mechanism in a threaded manner;
the extrusion driving mechanism comprises a cross rod 9 and connecting rods 10 which are obliquely arranged, the two connecting rods 10 which are opposite up and down are symmetrically arranged, the right end of the cross rod 9 is fixedly connected with the left side of a corresponding moving rod 11, the left end of the cross rod 9 extends into a corresponding rectangular groove 14, and two ends of each connecting rod 10 are respectively hinged with one side of the corresponding cross rod 9, which is close to the clamping groove 102, and the inner wall of one side of the first groove 8, which is close to the clamping groove 102;
the thread driving mechanism comprises a screw rod 12, a knob 13 and four handle rods, the left end of the screw rod 12 is rotatably installed with the inner wall of the left side of the corresponding rectangular groove 3, the right end of the screw rod 12 extends out of the corresponding rectangular box 4 and is fixedly connected with the left side of the knob 13, the movable rod 11 is sleeved on the corresponding screw rod 12 in a threaded manner, and the top, the bottom, the front side and the rear side of the knob 13 are respectively and fixedly connected with the corresponding handle rods.
In the utility model, the sides of two clamping blocks 6 which are opposite up and down and close to each other are both designed to be conical structures, the sides of the two clamping blocks 6 which are opposite up and down and far from each other are both provided with second grooves 5, the inner walls of the sides of the second grooves 5 which are far from the openings are fixedly connected with the ends of the corresponding springs 7 which are close to the clamping grooves 102, the right side inner walls of the rectangular grooves 14 are provided with first square holes which are in sliding connection with the outer sides of the corresponding cross rods 9, the left side of the reinforcing plate 1 is provided with two second square holes which are in sliding connection with the outer sides of the corresponding cross rods 9 respectively, the right side of the movable rod 11 is provided with threaded holes which are in threaded connection with the corresponding screw rods 12, the left side inner walls of the rectangular grooves 3 are provided with rotating grooves, first bearings are fixedly sleeved in the rotating grooves, the right side inner walls of the rectangular boxes 4 are provided with rotating holes, second bearings are fixedly sleeved in the rotating holes, and the inner rings of the second bearings and the inner rings of the first bearings are fixedly sleeved with the outer sides of the corresponding screw rods 12, the rapid fixing device is simple and convenient to operate, the clamping mode of realizing different orientations with the inserting rod 2 by rapidly driving the clamping block 6 to extend out can avoid the phenomenon that the inserting rod 2 is loosened and separated due to impact factors such as vibration, and the like, so that the reinforcing plate 1 can be conveniently and rapidly and stably fixed, the falling risk of the reinforcing plate is reduced, the stability of reinforcing work is improved, the reinforcing plate 1 can be conveniently and rapidly disassembled and assembled, the follow-up maintenance work of a crack by a worker can be facilitated, and the use requirement can be met.
The working principle is as follows: when in use, two inserting grooves 101 are arranged on the two sides of the crack on the outer side of the tunnel side wall body 100 in advance, the clamping grooves 102 with different directions are arranged on the inner wall of one side, which is close to the two inserting grooves 101, opposite to each other, of the two inserting grooves, then when the reinforcing plate 1 is fixed, the reinforcing plate 1 is moved leftwards, the reinforcing plate 1 drives the four inserting rods 2 to be respectively inserted into the corresponding inserting grooves 101, at the moment, the handle rod is rotated to drive the corresponding knob 13 to rotate forwards, the knob 13 drives the corresponding screw 12 to rotate, under the action of the threaded hole arranged on the moving rod 11, the screw 12 rotates to drive the corresponding moving rod 11 to move leftwards, the moving rod 11 drives the corresponding two cross rods 9 to move leftwards, the cross rods 9 drive the corresponding connecting rods 10 to obliquely rotate and extrude the fixture blocks 6 in the direction close to the clamping grooves 102, under the extrusion force, the fixture blocks 6 are clamped into the clamping grooves 102 in the direction close to the corresponding clamping grooves 102, the spring 7 is stretched, the clamping groove 102 limits the inserted link 2 through the corresponding clamping block 6 at the moment, so that the locking of the reinforcing plate 1 is realized, and the phenomenon that the inserted link 2 is loosened and separated due to impact factors such as vibration can be avoided through a clamping mode that the clamping block 6 and the corresponding inserted link 2 are in different directions, so that the effect of fixing the inserted link 2 by pricking is realized, the fixing stability of the reinforcing plate 1 is improved, the falling risk of the reinforcing plate is reduced, and the reinforcing stability is improved;
when the reinforcing plate 1 needs to be disassembled and repaired subsequently, the knob 13 is rotated reversely to drive the screw 12 to rotate, the movement process is the same as that of the knob 13 rotating forwardly, the cross rod 9 is changed to move back rightwards at the moment, the corresponding connecting rod 10 is driven to rotate to loosen the extrusion force on the fixture block 6, the elasticity of the spring 7 in the stretching state drives the corresponding fixture block 6 to move back and retract into the rectangular groove 14, the fixture block 6 is separated from the corresponding clamping groove 102, the fixture block is released from being clamped, the reinforcing plate 1 can be moved rightwards at the moment to drive the four inserting rods 2 to be separated from the corresponding inserting grooves 101 respectively, the disassembly is completed, and the disassembly of the reinforcing plate 1 is facilitated for personnel.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A tunnel side wall crack reinforcing device comprises a tunnel side wall body (100), wherein side wall cracks are arranged on the right side of the tunnel side wall body (100), two inserting grooves (101) formed in the right side of the tunnel side wall body (100) are formed in the front side and the rear side of each side wall crack, the tunnel side wall crack reinforcing device is characterized in that clamping grooves (102) are formed in the inner wall, close to each other, of one side of each inserting groove (101) which is opposite to each other up and down, and a quick-mounting reinforcing device is arranged on the right side of the tunnel side wall body (100);
the fast-assembly reinforcing device comprises a reinforcing plate (1) which is in movable contact with the right side of a tunnel side wall body (100), the left side of the reinforcing plate (1) is fixedly connected with four insertion rods (2) in a rectangular shape, the insertion rods (2) are clamped with corresponding insertion grooves (101), rectangular grooves (14) are formed in one sides, close to each other, of the two insertion rods (2) which are opposite up and down, clamping blocks (6) matched with corresponding clamping grooves (102) are sleeved in the rectangular grooves (14) in a sliding mode, springs (7) are fixedly connected between the inner walls, far away from the openings, of the rectangular grooves (14) and the corresponding clamping blocks (6), first grooves (8) with the right sides arranged for the openings are formed in one sides, far away from each other, of the two clamping blocks (6) which are opposite up and down, two rectangular boxes (4) with the left sides arranged for the openings are fixedly connected to the right sides of the reinforcing plate (1), and two rectangular grooves (3) are formed in the right side of the reinforcing plate (1), movable contact has carriage release lever (11) on the right side inner wall of rectangle box (4), and two extrusion actuating mechanism of left side fixedly connected with of carriage release lever (11), extrusion actuating mechanism's left end extend to in corresponding rectangular channel (14), and extrusion actuating mechanism is articulated mutually with one side inner wall that first recess (8) that correspond are close to draw-in groove (102), rotate on keeping away from its open-ended one side inner wall rectangle recess (3) and install screw thread actuating mechanism, outside screw thread actuating mechanism's right side extended to corresponding rectangle box (4), carriage release lever (11) screw thread bush was established on the screw thread actuating mechanism that corresponds.
2. The tunnel sidewall crack reinforcing device according to claim 1, wherein the extrusion driving mechanism comprises a cross rod (9) and connecting rods (10) which are obliquely arranged, the two connecting rods (10) which are opposite up and down are symmetrically arranged, the right end of the cross rod (9) is fixedly connected with the left side of the corresponding moving rod (11), the left end of the cross rod (9) extends into the corresponding rectangular groove (14), and the two ends of the connecting rod (10) are respectively hinged with one side of the corresponding cross rod (9) close to the clamping groove (102) and the inner wall of one side of the first groove (8) close to the clamping groove (102).
3. The tunnel sidewall crack reinforcing apparatus of claim 1, wherein the screw driving mechanism comprises a screw (12), a knob (13) and four handle bars, the left end of the screw (12) is rotatably installed with the left inner wall of the corresponding rectangular groove (3), the right end of the screw (12) extends to the outside of the corresponding rectangular box (4) and is fixedly connected with the left side of the knob (13), the movable bar (11) is threadedly sleeved on the corresponding screw (12), and the top, the bottom, the front side and the rear side of the knob (13) are respectively fixedly connected with the corresponding handle bars.
4. The tunnel sidewall crack strengthening device as claimed in claim 1, wherein the sides of the two vertically opposite clamping blocks (6) close to each other are both provided with a tapered structure, the sides of the two vertically opposite clamping blocks (6) far away from each other are both provided with a second groove (5), and the inner wall of the second groove (5) far away from the opening is fixedly connected with the end of the corresponding spring (7) close to the clamping groove (102).
5. The crack strengthening device for the side wall of the tunnel according to claim 2, wherein the right inner wall of the rectangular groove (14) is provided with a first square hole which is slidably connected with the outer side of the corresponding cross rod (9).
6. The crack strengthening device for the tunnel side wall as claimed in claim 2, wherein the left side of the strengthening plate (1) is provided with two second square holes which are respectively connected with the outer sides of the corresponding cross bars (9) in a sliding manner.
7. The crack reinforcement device for the side wall of the tunnel according to claim 3, characterized in that the right side of the movable rod (11) is provided with a threaded hole in threaded connection with the corresponding screw (12).
8. The tunnel sidewall crack reinforcing device as claimed in claim 3, wherein a rotating groove is formed on the left inner wall of the rectangular groove (3), a first bearing is fixedly sleeved in the rotating groove, a rotating hole is formed on the right inner wall of the rectangular box (4), a second bearing is fixedly sleeved in the rotating hole, and both the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved with the outer side of the corresponding screw (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122535265.XU CN215926861U (en) | 2021-10-21 | 2021-10-21 | Tunnel side wall crack reinforcing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122535265.XU CN215926861U (en) | 2021-10-21 | 2021-10-21 | Tunnel side wall crack reinforcing apparatus |
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CN215926861U true CN215926861U (en) | 2022-03-01 |
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Application Number | Title | Priority Date | Filing Date |
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CN202122535265.XU Expired - Fee Related CN215926861U (en) | 2021-10-21 | 2021-10-21 | Tunnel side wall crack reinforcing apparatus |
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CN (1) | CN215926861U (en) |
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2021
- 2021-10-21 CN CN202122535265.XU patent/CN215926861U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220301 |
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