CN214622380U - Pipeline inner wall detects uses wireless video viewing device - Google Patents
Pipeline inner wall detects uses wireless video viewing device Download PDFInfo
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- CN214622380U CN214622380U CN202120121789.1U CN202120121789U CN214622380U CN 214622380 U CN214622380 U CN 214622380U CN 202120121789 U CN202120121789 U CN 202120121789U CN 214622380 U CN214622380 U CN 214622380U
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- switch
- rechargeable battery
- micro motor
- protective shell
- connecting rod
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Abstract
The utility model belongs to the technical field of the pipeline maintenance technique and specifically relates to a pipeline inner wall detects uses wireless video viewing device, including probe and connecting rod, the probe is equipped with the protective housing, and internally mounted has camera lens, LED lamp pearl, rechargeable battery, micro motor and circuit board, and the probe passes through bayonet joint, inserting groove with the connecting rod and is connected fixedly, through the on-off control LED lamp pearl luminance on the handle, the visual angle and the nearly object distance of camera lens. The utility model has the advantages of reasonable design, realize the on-off control to the circuit through the electromagnetism meter electrical apparatus, realize the switching to micro motor direction of rotation, and then the control camera lens seesaw, realize the control of visual angle and distance, utilize push type spring switch, realized the safety measure of power supply, separation back outage behind probe and the connecting rod combination, effectively practice thrift the electric quantity, extension equipment life, low cost, easy and simple to handle.
Description
Technical Field
The utility model belongs to the technical field of the pipeline maintenance technique and specifically relates to a pipeline inner wall detects uses wireless video viewing device.
Background
At present, the pipeline technology is generally adopted in all aspects of hydraulic engineering, and compared with the traditional technical means such as ditches, the method is more advanced, saves time, labor and labor, and can effectively save water resources. Breakage of the pipe often occurs after the pipe is used for a long time. And the visible damage on the outside of the pipeline can be timely discovered and repaired. However, the pipeline belongs to a sealing structure, the surface of the interior of the pipeline is peeled off, impact injury and the like sometimes happens in use, due to invisibility, the traditional modes of knocking (listening to sound) and the like depend on the experience of operators on one hand and cannot guarantee that the pipeline is inevitably detected, and on the other hand, the operators with enough experience are rare, so that hidden dangers of various inner walls cannot be found in time.
With the development of electronic information technology, the image probe technology is rapidly introduced into pipeline maintenance work, but the existing flaw detection lens has a very complex structure and high maintenance cost, and faults frequently occur in the operation process due to the adoption of wired signal transmission. In addition, when the flaw detection lens works, due to the fact that different pipeline materials are different, inner diameters are different, environments are different, illuminance of different areas is different, angles of detected parts are various, and an operator is difficult to control and adjust rapidly according to needs on the outside. Therefore, there is a need in the market for a technical solution that can implement image inspection, and can implement rapid adjustment of the angle of view of the lens and the distance between objects during operation, and can effectively transmit video signals.
In addition, the existing technical scheme of the flaw detection lens does not consider the electric quantity loss caused by the accident, for example, the electric quantity of the battery is rapidly consumed due to the short circuit possibly caused by moisture, water flow and the like, and the problem also exists in the storage process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned technical shortcoming and providing a pipeline inner wall detects uses wireless video viewing device.
The utility model provides a technical scheme that technical problem adopted does: the utility model provides a pipeline inner wall detects uses wireless video viewing device, includes probe and connecting rod, the probe comprises protective housing, camera lens, LED lamp pearl, rechargeable battery, micro motor and circuit board, the protective housing is the hollow protective housing of L shape for the cross-section, and the protective housing lower extreme is provided with the inserting groove.
The protective shell is used for protecting each structural part installed inside, providing a protective effect and being made of hard rubber materials or polymer polyester materials and other existing public technologies in order to avoid electromagnetic interference; the rechargeable battery can adopt high-energy-density batteries such as a lithium battery and the like to supply power for other electronic components; the protective housing is installed as an organic whole through inserting groove and connecting rod, facilitates the use.
Protective housing upper portion side is provided with the hourglass head form open slot that holds the camera lens, and the bottom of leaking hopper-shaped open slot is provided with the fixed plate, and the central point of fixed plate is provided with the slotted hole of in-band screw thread, and the terminal surface is provided with a guide rail section of thick bamboo in the fixed plate, the rear portion central point fixedly connected with threaded rod of camera lens is provided with the second gear section of thick bamboo in the guide rail section of thick bamboo, micro motor installs in the inside top of protective housing, installs first gear section of thick bamboo on micro motor's the output shaft, first gear section of thick bamboo, second gear section of thick bamboo mating engagement, the threaded rod passes the slotted hole and stretches into guide rail section of thick bamboo and fixed mounting at the front end central point of second gear section of thick bamboo.
The micro motor is used for providing driving force, drives the rotation of the first gear barrel through the output rod, and then drives the rotation of the second gear barrel, and further drives the rotation of the threaded rod. The threaded rod is in threaded connection with the inner threads of the groove hole and is combined with a screw rod structure which is used as a base, so that when the threaded rod rotates, the distance between the lens at the front end and the fixed plate can be changed, and the adjustment of the video acquisition range is realized.
The battery bin is arranged at the lower part of the rear side of the protective shell, the bin cover is arranged on the battery bin, the rechargeable battery is arranged in the battery bin, the circuit board is arranged in the protective shell, and the rechargeable battery, the circuit board, the micro motor and the LED lamp beads are electrically connected through wires;
the upper end of the connecting rod is provided with a plug-in connector which is of a frame-shaped structure with a U-shaped longitudinal section, the end of the inner side of the connecting rod is provided with a hemispherical pressing block, the rear side of the lower end of the plug-in groove is provided with a pressing type spring switch, and the hemispherical pressing block is matched with the pressing type spring switch;
the longitudinal section of the plug is in a horizontally arranged U shape and is matched with the plug groove, and after the plug and the plug are clamped, the hemispherical pressing block is pressed on the pressing type spring switch, so that the switch K1 in the circuit is switched on. That is, only after the plug is completely connected with the plug slot, the switch K1 in the whole circuit is in a closed state, otherwise, the switch K1 is always in an open state. In order to ensure the effective contact between the hemispherical pressing block and the pressing type spring switch, the plug connector is made of high polymer resin with certain elasticity.
The circuit board is provided with an electromagnetic relay, a WIFI-SOC chip, a variable resistor, a switch K1 and a switch K2, the micro motor and the rechargeable battery form an electric loop through the electromagnetic relay and the switch K1, the LED lamp bead and the rechargeable battery form an electric loop through the switch K1, and the WIFI-SOC chip and the rechargeable battery form an electric loop through the switch K1; the electromagnetic relay forms an electric loop with the rechargeable battery through the switch K1 and the switch K2, and the variable value resistor forms an electric loop with the rechargeable battery.
The switch K1 is used to control whether the rechargeable battery is connected to the circuit, when the switch K1 is in the open state, the rechargeable battery is in the open state in any electric circuit, and no energy source is provided.
The electromagnetic relay is a double-pole four-throw switch, when a circuit where the electromagnetic relay is located is in an access state (namely, when a switch K1 and a switch K2 are both closed), a pole A is connected with a contact 1 and a pole B is connected with a contact 3, the positive pole of the micro motor is connected with the negative pole of the rechargeable battery, the negative pole of the micro motor is connected with the positive pole of the rechargeable battery, and the micro motor rotates clockwise; when a switch K1 of a circuit where the electromagnetic relay is located is closed and a switch K2 is disconnected, the knife A is connected with a contact 2, the knife B is connected with a contact 4, the positive electrode of the micro motor is connected with the positive electrode of the rechargeable battery, the negative electrode of the micro motor is connected with the negative electrode of the rechargeable battery, and the micro motor rotates anticlockwise.
The WIFI-SOC chip is connected with a signal antenna, and the signal antenna is installed on the outer side of the lower end of the L-shaped structure of the protective shell. The WIFI-SOC is a known technology in the prior art, various automobile data recorders are connected with the smart phone through the technology to achieve video synchronous sharing, the technology is mature, the technology can be achieved through existing on-sale components, and the detailed description is omitted.
The circuit board is also connected with a data connection male head through a wire, and the data connection male head extends out of the protective shell;
the handle is installed to the connecting rod rear end, is provided with LED lamp adjust knob, micro motor control knob and the female head of data connection on the handle, LED lamp adjust knob and variable resistance electric connection, and the female head of data connection line suits with the public head of data connection matches, micro motor control knob and switch K2 electric connection.
Public head of data connection and circuit board electric connection for the transmission signal of telecommunication to the realization is to the corresponding control of circuit, owing to relate to the transmission of multiunit circuit signal, and public head of data connection and the female many needles connector that all adopt prior art of data connection are in order to realize the independent control of different shunts.
The LED lamp adjusting knob is used for adjusting the resistance value of the variable resistor so as to adjust the brightness of the LED lamp beads.
The micro motor control knob is used for controlling the electrical connection of the switch K2 so as to realize the on-off control of the electromagnetic relay.
The lower portion of the rear side of the protective shell is further provided with a USB charging port, and the USB charging port is electrically connected with the battery bin. For realizing the direct charging under the rechargeable battery non-disassembly state, set up the USB mouth that charges, use prior art's Micro USB charging wire and connect for its charges, also can take off independent charging behind the rechargeable battery.
Further, the connecting rod is of a hollow telescopic rod-shaped structure. A connecting rod of a telescopic rod structure is mainly used for endoscope of a straight pipeline and belongs to the prior known technology.
Further, the connecting rod is a hollow serpentine pipe. The coiled pipe can be bent, is mainly used for endoscopic observation of the joint or corner of the pipeline, and belongs to the prior known technology.
The principle of the technical scheme is as follows: the micro motor control knob is used for realizing on-off control of the switch K2, so that contacts of an A knife and a B knife of the electromagnetic relay are switched, the connection mode of the anode and the cathode of the micro motor and the anode and the cathode of the rechargeable battery is changed, the rotation direction of the micro motor is switched, the lens moves forwards or backwards through the first gear cylinder, the second gear cylinder and the threaded rod, and the visible angle and the visible range of the lens are controlled; the resistance value of the variable resistor is adjusted by the LED lamp adjusting knob, so that the current of a circuit where the LED lamp beads are located is adjusted, and the illumination brightness of the lamp beads is controlled.
In the technical scheme, due to the existence of the switch K1, only when the plug-in groove is stably plugged with the plug connector, the closing of the switch K1 can be realized by closing the pressing type spring switch, and the rechargeable battery can be connected to the circuit to supply power to each component.
The utility model discloses the beneficial effect who has is: the utility model has the advantages of reasonable design, realize the on-off control to the circuit through the electromagnetism meter electrical apparatus, realize the switching to micro motor direction of rotation, and then the control camera lens seesaw, realize the control of visual angle and distance, utilize push type spring switch, realized the safety measure of power supply, separation back outage behind probe and the connecting rod combination, effectively practice thrift the electric quantity, extension equipment life, low cost, easy and simple to handle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Figure 2 is the utility model discloses hemispherical briquetting, push type spring switch's schematic structure.
Fig. 3 is a connection relationship diagram of each electronic component of the present invention.
Detailed Description
The present invention will be described in detail below with reference to fig. 1 to 3.
As shown in fig. 1-3, the utility model discloses a probe and connecting rod 2, the probe comprises protective housing 1, camera lens 8, LED lamp pearl 9, rechargeable battery 22, micro motor 6 and circuit board 10, protective housing 1 is the hollow protective housing of L shape for the cross-section, and 1 lower extreme of protective housing is provided with inserting groove 1-1.
The protective shell 1 is used for protecting each structural part installed inside, providing a protective effect, and is made of hard rubber materials or polymer polyester materials and other existing public technologies in order to avoid electromagnetic interference; the rechargeable battery 22 can adopt high energy density batteries such as lithium batteries and the like to supply power for other electronic components; the protective shell 1 is integrally installed with the connecting rod 2 through the insertion groove 1-1, and the use is convenient.
The side of the upper portion of the protective shell 1 is provided with a funnel-shaped open slot 1-2 for accommodating a lens 8, the bottom of the funnel-shaped open slot 1-2 is provided with a fixed plate 13, the central portion of the fixed plate 13 is provided with a slotted hole 14 with internal threads, the inner end face of the fixed plate 13 is provided with a guide rail cylinder 27, the rear central portion of the lens 8 is fixedly connected with a threaded rod 15, a second gear cylinder 12 is arranged in the guide rail cylinder 27, the micro motor 6 is arranged above the inner portion of the protective shell 1, a first gear cylinder 11 is arranged on an output shaft of the micro motor 6, the first gear cylinder 11 and the second gear cylinder 12 are matched and meshed, and the threaded rod 15 penetrates through the slotted hole 14 to stretch into the guide rail cylinder 27 and is fixedly arranged at the front central portion of the second gear cylinder 12.
The micro motor 6 is used for providing driving force, and drives the first gear barrel 11 to rotate through the output rod, so as to drive the second gear barrel 12 to rotate, and further drive the threaded rod 15 to rotate. The threaded rod 15 is screwed with the internal thread of the slotted hole 14, and is combined with a basic screw structure, so that when the threaded rod 15 rotates, the lens 8 at the front end changes the distance from the fixed plate 13, and the adjustment of the video acquisition range is realized.
A battery bin 7 is arranged at the lower part of the rear side of the protective shell 1, a bin cover 7-1 is arranged on the battery bin 7, a rechargeable battery 22 is arranged in the battery bin 7, the circuit board 10 is arranged in the protective shell 1, and the rechargeable battery 22, the circuit board 10, the micro motor 6 and the LED lamp beads 9 are electrically connected through wires;
the upper end of the connecting rod 2 is provided with a plug 4, the plug 4 is of a frame-shaped structure with a U-shaped longitudinal section, the inner side end is provided with a hemispherical press block 4-1, the rear side of the lower end of the plug groove 1-1 is provided with a press type spring switch 16, and the hemispherical press block 4-1 is matched with the press type spring switch 16;
the longitudinal section of the plug 4 is in a flat U shape, and is matched with the plug groove 1-1, after the two are clamped, the hemispherical press block 4-1 is pressed against the press type spring switch 16, so that a switch K1 (the reference number is 24 in the figure, the same is used below, and the description is omitted for avoiding digital interference) in the circuit is switched on. That is, only after the connection between the plug 4 and the slot 1-1 is completed, the switch K1 in the whole circuit is in a closed state, otherwise, the switch K1 is always in an open state. In order to ensure the effective contact between the hemispherical pressing block 4-1 and the pressing type spring switch 16, the plug 4 should be made of polymer resin with certain elasticity.
The circuit board 10 is provided with an electromagnetic relay 23, a WIFI-SOC chip 25, a variable resistor 26, a switch K1 and a switch K2 (the reference number in the figure is 28, and the same is used below, so as to avoid digital interference, and the details are not described below), the micro motor 6 forms an electrical loop with the rechargeable battery 22 through the electromagnetic relay 23, the switch K1, the LED lamp bead 9 forms an electrical loop with the rechargeable battery 22 through the switch K1, and the WIFI-SOC chip 25 forms an electrical loop with the rechargeable battery 22 through the switch K1; the electromagnetic relay 23 forms an electric loop with the rechargeable battery 22 through the switch K1 and the switch K2, and the variable resistance 26 forms an electric loop with the rechargeable battery 22.
The switch K1 is used to control whether the rechargeable battery 22 is connected to the circuit, and when the switch K1 is in the off state, the rechargeable battery 22 is in the off state in any electrical circuit and does not provide power.
The electromagnetic relay 23 is a double-pole four-throw switch, when a circuit where the electromagnetic relay 23 is located is in a closed state (namely, when the switch K1 and the switch K2 are both closed), the pole A is connected with the contact 1 and the pole B is connected with the contact 3, the positive pole of the micro motor 6 is connected with the negative pole of the rechargeable battery 22, the negative pole of the micro motor 6 is connected with the positive pole of the rechargeable battery 22, and the micro motor 6 rotates clockwise; when the switch K1 of the circuit where the electromagnetic relay 23 is located is closed and the switch K2 is opened, the A knife is connected with the contact 2, the B knife is connected with the contact 4, the positive pole of the micro motor 6 is connected with the positive pole of the rechargeable battery 22, the negative pole of the micro motor 6 is connected with the negative pole of the rechargeable battery 22, and the micro motor 6 rotates anticlockwise.
The WIFI-SOC chip is connected 25 with a signal antenna 5, and the signal antenna 5 is installed on the outer side of the lower end of the L-shaped structure of the protective shell 1. The WIFI-SOC chip is a known technology in the prior art, various automobile data recorders are connected with the smart phone through the technology to achieve video synchronous sharing, the technology is mature, the technology can be achieved through existing on-sale components, and the detailed description is omitted.
The circuit board 10 is also connected with a data connection male head 19 through a lead 17, and the data connection male head 19 extends out of the protective shell 1;
handle 3 is installed to 2 rear ends of connecting rod, is provided with LED lamp adjust knob 21, micro motor control knob 20 and data connection female head 18 on the handle 3, LED lamp adjust knob 21 and variable value resistance 26 electric connection, and the female head 18 of data connection line matches with the public head 19 of data connection is suitable, micro motor control knob 20 and switch K2 electric connection.
The male data connection head 19 is electrically connected with the circuit board 10 and used for transmitting electric signals, so that corresponding control over a circuit is achieved.
The LED lamp adjusting knob 21 is used for adjusting the resistance value of the variable resistor 26 so as to adjust the brightness of the LED lamp bead 9.
The micro motor control knob 20 is used for controlling the electrical connection of the switch K2 to realize the on-off control of the electromagnetic relay 23.
The lower portion of the rear side of the protective shell 1 is further provided with a USB charging port 27-1, and the USB charging port 27-1 is electrically connected with the battery bin 7. In order to realize the direct charging of the rechargeable battery 22 in the non-disassembled state, a USB charging port is arranged, a Micro USB charging wire and a connector in the prior art are used for charging the rechargeable battery, and the rechargeable battery 22 can be taken down and independently charged.
In this embodiment, the connecting rod 2 is a hollow telescopic rod-shaped structure. A connecting rod of a telescopic rod structure is mainly used for endoscope of a straight pipeline and belongs to the prior known technology.
In other embodiments, the connecting rod may be selected to be a hollow serpentine tube. The coiled pipe can be bent, is mainly used for endoscopic observation of the joint or corner of the pipeline, and belongs to the prior known technology.
The principle of the technical scheme is as follows: the micro motor 20 is used for controlling the knob to realize on-off control of the switch K2, so that contacts of a knife A and a knife B of the electromagnetic relay 23 are switched, the connection mode of the anode and the cathode of the micro motor 6 and the anode and the cathode of the rechargeable battery 22 is changed, the rotation direction of the micro motor 6 is switched, the lens 8 moves forwards or backwards through the first gear cylinder 11, the second gear cylinder 12 and the threaded rod 15, and the control of the visible angle and the range of the lens 8 is realized; the resistance value of the variable resistor 26 is adjusted by the LED lamp adjusting knob 21, so that the current of a circuit where the LED lamp beads 9 are located is adjusted, and the illumination brightness of the lamp beads is controlled.
In the technical scheme, due to the existence of the switch K1, only when the plugging slot 1-1 is firmly plugged with the plug 4, the switch K1 can be closed by closing the press type spring switch 16, and the rechargeable battery 22 can be connected to a circuit to supply power to each component.
When in use, the connecting rod 2 is stably connected with the probe and is arranged in a battery for use. The brightness of the LED lamp beads 9 can be adjusted through the LED lamp adjusting knobs 21; through micro motor control knob 20, can control micro motor 6's direction of rotation, and then control the translation about camera lens 8, realize the regulation to visual angle and nearly object distance.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a pipeline inner wall detects uses wireless video viewing device, includes probe and connecting rod, its characterized in that: the probe consists of a protective shell, a lens, an LED lamp bead, a rechargeable battery, a micro motor and a circuit board, wherein the protective shell is a hollow protective shell with an L-shaped section, the lower end of the protective shell is provided with an insertion groove, the side surface of the upper part of the protective shell is provided with a funnel-shaped open slot for accommodating the lens, the bottom of the funnel-shaped open slot is provided with a fixed plate, the central part of the fixed plate is provided with a slotted hole with internal threads, the inner end surface of the fixed plate is provided with a guide rail cylinder, the central part of the rear part of the lens is fixedly connected with a threaded rod, a second gear cylinder is arranged in the guide rail cylinder, the micro motor is arranged above the protective shell, the output shaft of the micro motor is provided with a first gear cylinder, the first gear cylinder and the second gear cylinder are matched and meshed, the threaded rod penetrates through the slotted hole and extends into the guide rail cylinder and is fixedly arranged at the central part of the front end of the second gear cylinder, the lower part of the rear side of the protective shell is provided with a battery bin, the battery bin is provided with a bin cover, the rechargeable battery is arranged in the battery bin, the circuit board is arranged in the protective shell, and the rechargeable battery, the circuit board, the micro motor and the LED lamp beads are electrically connected through wires;
the upper end of the connecting rod is provided with a plug-in connector which is of a frame-shaped structure with a U-shaped longitudinal section, the end of the inner side of the connecting rod is provided with a hemispherical pressing block, the rear side of the lower end of the plug-in groove is provided with a pressing type spring switch, and the hemispherical pressing block is matched with the pressing type spring switch;
the circuit board is provided with an electromagnetic relay, a WIFI-SOC chip, a variable resistor, a switch K1 and a switch K2, the micro motor and the rechargeable battery form an electric loop through the electromagnetic relay and the switch K1, the LED lamp bead and the rechargeable battery form an electric loop through the switch K1, and the WIFI-SOC chip and the rechargeable battery form an electric loop through the switch K1; the electromagnetic relay forms an electric loop with the rechargeable battery through the switch K1 and the switch K2, and the variable resistance forms an electric loop with the rechargeable battery;
the circuit board is also connected with a data connection male head through a wire, and the data connection male head extends out of the protective shell;
the handle is installed to the connecting rod rear end, is provided with LED lamp adjust knob, micro motor control knob and the female head of data connection on the handle, LED lamp adjust knob and variable resistance electric connection, and the female head of data connection line matches with the public head of data connection, micro motor control knob and switch K2 electric connection.
2. The wireless video observation device for detecting the inner wall of the pipeline according to claim 1, wherein: the lower portion of the rear side of the protective shell is further provided with a USB charging port, and the USB charging port is electrically connected with the battery bin.
3. The wireless video observation device for detecting the inner wall of the pipeline according to claim 1, wherein: the WIFI-SOC chip is connected with a signal antenna, and the signal antenna is installed on the outer side of the lower end of the L-shaped structure of the protective shell.
4. The wireless video observation device for detecting the inner wall of the pipeline according to claim 1, wherein: the connecting rod is a hollow telescopic rod-shaped structure.
5. The wireless video observation device for detecting the inner wall of the pipeline according to claim 1, wherein: the connecting rod is a hollow serpentine pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121789.1U CN214622380U (en) | 2021-01-18 | 2021-01-18 | Pipeline inner wall detects uses wireless video viewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121789.1U CN214622380U (en) | 2021-01-18 | 2021-01-18 | Pipeline inner wall detects uses wireless video viewing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214622380U true CN214622380U (en) | 2021-11-05 |
Family
ID=78436986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120121789.1U Expired - Fee Related CN214622380U (en) | 2021-01-18 | 2021-01-18 | Pipeline inner wall detects uses wireless video viewing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214622380U (en) |
-
2021
- 2021-01-18 CN CN202120121789.1U patent/CN214622380U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211105 Termination date: 20220118 |