CN115979520A - Fuel pipeline gas tightness detection device - Google Patents
Fuel pipeline gas tightness detection device Download PDFInfo
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- CN115979520A CN115979520A CN202310054547.9A CN202310054547A CN115979520A CN 115979520 A CN115979520 A CN 115979520A CN 202310054547 A CN202310054547 A CN 202310054547A CN 115979520 A CN115979520 A CN 115979520A
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- support frame
- fuel pipeline
- fixed mounting
- locating rack
- mounting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention provides a fuel pipeline air tightness detection device, which relates to the technical field of pipeline detection, and comprises a blowing blockage detection assembly and a leakage detection assembly, wherein the blowing blockage detection assembly comprises a first support frame, a first blowing pump is fixedly installed at one end of the upper surface of a fixing plate, an electric clamp is installed on the upper surface of the fixing plate, the leakage detection assembly comprises a second support frame, a limiting plate is connected with a wire groove, a second blowing pump is installed on a first positioning frame, and a third blowing pump is installed on a second positioning frame.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a fuel pipeline air tightness detection device.
Background
The fuel pipeline is a pipeline for conveying fuel and gas, and at present, in order to ensure the quality of the fuel pipeline, the fuel pipeline needs to be detected, for example, a pipeline air tightness detection device with the patent application number of CN202222253737.7 belongs to the technical field of pipeline test equipment, and comprises a water tank, a first fixing mechanism which is arranged on one side inside the water tank and used for fixing the end part of the pipeline, a second fixing mechanism which is arranged on the other side inside the water tank and used for fixing the other end part of the pipeline, an air inlet mechanism which is arranged on the second fixing mechanism and blows towards the inside of the pipeline, and a limiting mechanism which is arranged inside the water tank and used for compressing the pipeline; the limiting mechanism comprises a fixing seat, a pressing plate and a first driving piece, wherein the fixing seat is accepted below the pipeline, the pressing plate is arranged above the fixing seat in a sliding mode and is used for pressing the pipeline, and the first driving piece drives the pressing plate to ascend and descend. The gas pipeline airtightness detection device comprises a conduit and a shell, the right side of an installation cavity is communicated with a communicating pipe, and the other end of the communicating pipe penetrates through a water cavity and extends to the inside of the water cavity; the bottom in the mounting shell is tightly attached with a movable plate, the upper end face of the movable plate is fixedly connected with a movable rod, the upper end of the movable rod penetrates through the mounting shell and extends to the upper part of the mounting shell, a spring is fixedly connected between the movable plate and the mounting shell, and the upper end face of the movable rod is fixedly connected with a mounting block, so that when the alarm device breaks down, whether gas leakage occurs at the position of the conduit joint or not can be conveniently observed and judged, and the problem that the leakage at the position of the conduit joint cannot be found in time due to the failure of the alarm device in the detection process is avoided, and solved current device and made the pipe directly be located the aquatic, water easily infiltrates the problem in the pipe when pipe joint takes place to leak, but above-mentioned technical scheme, when examining the pipeline, can have foreign matter such as dust in the pipeline, after the detection is accomplished, repairs again, and present device can only detect the pipeline gas tightness, and whether the condition of pipeline jam detects out, influences the efficiency that detects.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a fuel pipeline air tightness detection device, which solves the problems that when a pipeline is detected, foreign matters such as dust exist in the pipeline, the pipeline is repaired again after the detection is finished, and the detection efficiency is influenced because the air tightness of the pipeline can only be detected by the conventional device, and the condition that whether the pipeline is blocked cannot be detected.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a fuel pipeline air tightness detection device comprises an air blowing blockage detection assembly and a leakage detection assembly, wherein the air blowing blockage detection assembly comprises a first support frame, first support rods are fixedly installed on the upper surface of the first support frame at equal intervals, a fixed plate is fixedly installed at the upper ends of a plurality of first support rods, positioning rods are slidably installed on two sides of the upper surface of the fixed plate, a support rod is fixedly installed between every two positioning rods, a first air blowing pump is fixedly installed at one end of the upper surface of the fixed plate, and an electric clamp is installed on the upper surface of the fixed plate;
leak hunting subassembly includes the second support frame, second support frame upper end fixed mounting has the roof-rack, fixed surface installs the wire casing on the roof-rack, roof-rack upper surface one end slidable mounting has the limiting plate, the limiting plate is connected with the wire casing, fixed surface installs first locating rack on the limiting plate, install second air-blowing pump on the first locating rack, roof-rack upper surface other end fixed mounting has the second locating rack, install the third air-blowing pump on the second locating rack.
Preferably, first support frame lower surface equidistance fixed mounting has a plurality of first supporting bases, a plurality of first universal wheel are installed to first support frame lower surface equidistance, install the storage case on the first support frame.
Preferably, first slide rails are fixedly mounted on two sides of the upper surface of the fixing plate, a plurality of first slide blocks are slidably mounted in the middle of the first slide rails, and a plurality of positioning rods are fixedly mounted on the upper surfaces of the first slide blocks respectively.
Preferably, the positioning rods are all high and low, and a stop block is fixedly mounted in the middle of each supporting rod.
Preferably, a supporting plate is fixedly mounted on the upper surface of one of the first sliding blocks, a mounting rod is fixedly mounted on the upper surface of the supporting plate, and a funnel is fixedly mounted at one end of the mounting rod.
Preferably, a dust collection box is fixedly mounted on the side face of the first supporting rod, a suction pump is mounted at an opening of the dust collection box, and an output end of the suction pump is connected with a leakage opening at one end of the funnel through a vent pipe.
Preferably, a plurality of second supporting bases are fixedly installed on the lower surface of the second supporting frame in an equidistant mode, a plurality of second universal wheels are installed on the lower surface of the second supporting frame in an equidistant mode, a gas tank is fixedly installed on the second supporting frame, and a control console is fixedly installed on the side face of the second supporting frame.
Preferably, the second support frame upper surface fixed mounting has a mounting bracket, mounting bracket upper surface one side fixed mounting has the switch board, mounting bracket upper surface one side fixed mounting has the display, the horizontal pole is all installed to the one side that first locating rack, second locating rack are close to each other.
Preferably, the second sliding rails are fixedly mounted on two sides of the upper surface of the top frame, the second sliding blocks are slidably mounted in the middle of the second sliding rails, and the limiting plate is fixedly mounted between the upper surfaces of the two second sliding blocks.
Preferably, sliding surface installs first splint on the first locating rack, fixed surface installs first pneumatic cylinder on the first locating rack, first pneumatic cylinder output sets up on first splint, sliding surface installs the second splint on the second locating rack, fixed surface installs the second pneumatic cylinder on the second locating rack, the second pneumatic cylinder output sets up at the second splint.
The invention provides a fuel pipeline air tightness detection device. The method has the following beneficial effects:
1. placing a plurality of fuel pipelines on a supporting rod, sequentially sleeving one end of each fuel pipeline on a first blowing pump, working through an electric clamp at the moment, clamping two sides of each fuel pipeline by the electric clamp, tightly sleeving the fuel pipelines on the first blowing pumps, working through the first blowing pumps at the moment, detecting whether the fuel pipelines are ventilated or not and whether the fuel pipelines are blocked or not, arranging the other ends of the fuel pipelines on a funnel at the same time of detection, working through a suction pump at the moment, and producing suction force to extract dust in the fuel pipelines in advance, make the dust inhale inside the dust collection box, and the fuel pipeline is through inhaling through one end, one end is through blowing, can be relaxed more will burn the inside dust of fuel pipeline and foreign matter blow clean, make this device when detecting, can clean fuel pipeline inside, the convenience of this device has been improved, and the equal fixed mounting in fixed plate upper surface both sides has first slide rail, two equal slidable mounting in first slide rail middle parts have a plurality of first sliders, a plurality of locating levers are fixed mounting at first slider upper surface respectively, can adjust the position of locating lever at will, make this device can detect the fuel pipeline of different length.
2. The method comprises the steps of firstly working through a wire groove, driving a limiting plate to move, adjusting the distance between a first positioning frame and a second positioning frame, adjusting the distance between a second air blowing pump and a third air blowing pump, detecting fuel pipelines with different lengths, adjusting the positions to proper positions, sleeving two ends of each fuel pipeline on the second air blowing pump and the third air blowing pump respectively, stretching out and drawing back through an output end of a first hydraulic cylinder and an output end of a second hydraulic cylinder, driving a first clamping plate and a second clamping plate to move, clamping two ends of each fuel pipeline respectively through the first clamping plate and the second clamping plate, arranging two ends of each fuel pipeline on the second air blowing pump and the third air blowing pump respectively, working through the second air blowing pump and the third air blowing pump, working the fuel pipelines, displaying the quality of detected fuel pipelines through a display, storing the fuel pipelines with the quality not being closed inside a storage box, and facilitating workers to collect the fuel pipelines with the quality not being closed uniformly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall side view internal structure of the present invention;
FIG. 3 is a schematic view of the top frame structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in the present invention;
FIG. 5 is an enlarged view of the structure at B in the present invention;
fig. 6 is an enlarged schematic view of the structure at C in the present invention.
Wherein, 1, the air blowing blockage detecting component; 101. a first support frame; 102. a first support bar; 103. a first support base; 104. a first universal wheel; 105. a first slider; 106. a material storage box; 107. a fixing plate; 108. a first slide rail; 109. positioning a rod; 110. a stay bar; 111. an electric clamp; 112. a first blower pump; 113. a dust collection box; 114. a suction pump; 115. mounting a rod; 116. a stopper; 117. a funnel; 118. a support plate; 2. a leak detection assembly; 201. a gas tank; 202. a console; 203. a second support frame; 204. a second universal wheel; 205. a second support base; 206. a mounting frame; 207. a power distribution cabinet; 208. a display; 209. a top frame; 210. a second slide rail; 211. a wire slot; 212. a second slider; 213. a limiting plate; 214. a first positioning frame; 215. a cross bar; 216. a second positioning frame; 217. a second blower pump; 218. a first splint; 219. a first hydraulic cylinder; 220. a third blower pump; 221. a second hydraulic cylinder; 222. a second splint.
Description of the preferred embodiment
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a fuel pipeline airtightness detection apparatus, including a blowing blockage detection assembly 1 and a leak detection assembly 2, where the blowing blockage detection assembly 1 includes a first support frame 101, first support rods 102 are fixedly installed on an upper surface of the first support frame 101 at equal intervals, a fixing plate 107 is fixedly installed at upper ends of the first support rods 102, positioning rods 109 are slidably installed on both sides of an upper surface of the fixing plate 107, a support rod 110 is fixedly installed between every two positioning rods 109, a first blowing pump 112 is fixedly installed at one end of an upper surface of the fixing plate 107, and an electric clamp 111 is installed on an upper surface of the fixing plate 107;
As shown in fig. 2 and 4, a plurality of first supporting bases 103 are fixedly installed on the lower surface of the first supporting frame 101 at equal intervals, a plurality of first universal wheels 104 are installed on the lower surface of the first supporting frame 101 at equal intervals, a storage tank 106 is installed on the first supporting frame 101, first sliding rails 108 are fixedly installed on two sides of the upper surface of the fixing plate 107, a plurality of first sliding blocks 105 are slidably installed in the middle of each of the first sliding rails 108, a plurality of positioning rods 109 are fixedly installed on the upper surface of each of the first sliding blocks 105, a plurality of positioning rods 109 are respectively and fixedly installed on the upper surfaces of the first sliding blocks 105, a stop dog 116 is fixedly installed in the middle of each of the supporting rods 110, a supporting plate 118 is fixedly installed on the upper surface of each of the supporting plates 118, a funnel 117 is fixedly installed on one end of each of the mounting rods 115, a dust collection tank 113 is fixedly installed on the side surface of each of the first supporting rod 102, a suction pump 114 is installed on the tank port of the dust collection tank 113, an output end of the suction pipe is connected with a leak port of the funnel 117 through a vent pipe, and the electric suction pump 111 is used for detecting whether the dust collection tank is blocked by the electric blowing pipe, and the electric blowing pipe 112, so that the electric blowing pipe is clamped on the electric blowing pipe, and whether the electric blowing pipe is detected, and the fuel pipeline is through inhaling through one end, one end is through blowing, can be more relaxed blow clean with the inside dust and the foreign matter of fuel pipeline, make this device when detecting, can clean fuel pipeline inside, the convenience of this device has been improved, and the equal fixed mounting in fixed plate 107 upper surface both sides has first slide rail 108, equal slidable mounting has a plurality of first sliders 105 in two first slide rails 108 middle parts, a plurality of locating levers 109 are fixed mounting respectively on first slider 105 upper surface, can adjust the position of locating lever 109 at will, make this device can detect the fuel pipeline of different length.
As shown in fig. 2, 3, 5, and 6, a plurality of second supporting bases 205 are fixedly installed on the lower surface of the second supporting frame 203 at equal intervals, a plurality of second universal wheels 204 are installed on the lower surface of the second supporting frame 203 at equal intervals, a gas tank 201 is fixedly installed on the second supporting frame 203, a console 202 is fixedly installed on the side surface of the second supporting frame 203, an installation frame 206 is fixedly installed on the upper surface of the second supporting frame 203, a power distribution cabinet 207 is fixedly installed on one side of the upper surface of the installation frame 206, a display 208 is fixedly installed on one side of the upper surface of the installation frame 206, a cross rod 215 is installed on the side where the first positioning frame 214 and the second positioning frame 216 are close to each other, second sliding rails 210 are fixedly installed on both sides of the upper surface of the top frame 209, second sliding blocks 212 are slidably installed in the middle parts of the second sliding rails 210, and a limiting plate 213 is fixedly installed between the upper surfaces of the two second sliding blocks 212, the upper surface of the first positioning frame 214 is slidably provided with a first clamping plate 218, the upper surface of the first positioning frame 214 is fixedly provided with a first hydraulic cylinder 219, the output end of the first hydraulic cylinder 219 is arranged on the first clamping plate 218, the upper surface of the second positioning frame 216 is slidably provided with a second clamping plate 222, the upper surface of the second positioning frame 216 is fixedly provided with a second hydraulic cylinder 221, the output end of the second hydraulic cylinder 221 is arranged on the second clamping plate 222, the second hydraulic cylinder 221 works through a wire groove 211 to drive the limiting plate 213 to move, so that the distance between the first positioning frame 214 and the second positioning frame 216 is adjusted to adjust the distance between the second blowing pump 217 and the third blowing pump 220, so that fuel pipelines with different lengths are detected, the position is adjusted to a proper position, and at the moment, two ends of the fuel pipelines are respectively sleeved on the second blowing pump 217, the third blowing pump 220, on third blow pump 220, stretch out and draw back through first pneumatic cylinder 219 and second pneumatic cylinder 221 output this moment, can drive first splint 218 and second splint 222 this moment and remove, make first splint 218 and second splint 222 clip the both ends of fuel pipeline respectively, make the fuel pipeline both ends equally divide and do not set up at second blow pump 217, on the third blow pump 220, this moment through second blow pump 217, third blow pump 220 works, thereby come to carry out leak hunting work to the fuel pipeline, and can demonstrate the quality that detects fuel pipeline through display 208, and the fuel pipeline that the quality does not pass the pass, and the quality can be stored inside storage case 106, be convenient for the staff collects in unison to the fuel pipeline that the quality does not pass the pass.
The working principle is as follows: when the blockage of the fuel pipeline needs to be detected, at the moment, a plurality of fuel pipelines are firstly placed on the supporting rod 110, at the moment, one end of each fuel pipeline is sequentially sleeved on the first blowing pump 112, at the moment, the electric clamp 111 works to clamp two sides of each fuel pipeline, the fuel pipelines can be tightly sleeved on the first blowing pump 112, at the moment, the first blowing pump 112 works to blow, so that whether the fuel pipelines are ventilated or not and whether the fuel pipelines are blocked or not are detected, and at the same time of detection, the other end of each fuel pipeline is arranged on the funnel 117, at the moment, the suction pump 114 works, so that suction force can be generated, dust in the fuel pipelines can be firstly extracted, the dust is sucked into the dust collection box 113, and one end of each fuel pipeline is sucked and blown through the suction, so that the dust and foreign matters in the fuel pipelines can be more easily blown out, the device can clean the interior of a fuel pipeline during detection, the convenience of the device is improved, the first slide rails 108 are fixedly mounted on the two sides of the upper surface of the fixing plate 107, the first slide blocks 105 are slidably mounted in the middle of the two first slide rails 108, the positioning rods 109 are respectively and fixedly mounted on the upper surfaces of the first slide blocks 105, the positions of the positioning rods 109 can be adjusted at will, the device can detect fuel pipelines with different lengths, after detection of blockage by blowing is completed, the device firstly works through the thread groove 211 to drive the limiting plate 213 to move, so that the distance between the first positioning frame 214 and the second positioning frame 216 is adjusted, the distance between the second blowing pump 217 and the third blowing pump 220 is adjusted, the fuel pipelines with different lengths are detected, and the positions are adjusted to be proper positions, at this moment, the two ends of the fuel pipeline are respectively sleeved on the second blowing pump 217 and the third blowing pump 220, the output ends of the first hydraulic cylinder 219 and the second hydraulic cylinder 221 stretch out and draw back at this moment, the first clamping plate 218 and the second clamping plate 222 can be driven to move at this moment, the two ends of the fuel pipeline are respectively clamped by the first clamping plate 218 and the second clamping plate 222, the two ends of the fuel pipeline are uniformly arranged on the second blowing pump 217 and the third blowing pump 220, the second blowing pump 217 and the third blowing pump 220 work at this moment, and therefore leakage detection work can be carried out on the fuel pipeline, the quality of detection of the fuel pipeline can be displayed through the display 208, the fuel pipeline with the quality not being closed can be stored inside the storage box 106, and the worker can conveniently and uniformly collect the fuel pipelines with the quality not being closed.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and obvious variations and modifications may be made within the scope of the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a fuel pipeline gas tightness detection device, examines stifled subassembly (1), leak hunting subassembly (2) including blowing, its characterized in that: the air blowing blockage detection assembly (1) comprises a first support frame (101), first support rods (102) are fixedly mounted on the upper surface of the first support frame (101) at equal intervals, a fixing plate (107) is fixedly mounted at the upper ends of the first support rods (102), positioning rods (109) are slidably mounted on two sides of the upper surface of the fixing plate (107), a support rod (110) is fixedly mounted between every two positioning rods (109), a first air blowing pump (112) is fixedly mounted at one end of the upper surface of the fixing plate (107), and an electric clamp (111) is mounted on the upper surface of the fixing plate (107);
leak hunting subassembly (2) include second support frame (203), second support frame (203) upper end fixed mounting has roof-rack (209), fixed surface installs wire casing (211) on roof-rack (209), surface one end slidable mounting has limiting plate (213) on roof-rack (209), limiting plate (213) are connected with wire casing (211), fixed surface installs first locating rack (214) on limiting plate (213), install second blower pump (217) on first locating rack (214), surface other end fixed mounting has second locating rack (216) on roof-rack (209), install third blower pump (220) on second locating rack (216).
2. The fuel pipeline airtightness detection apparatus according to claim 1, wherein: first support frame (101) lower surface equidistance fixed mounting has a plurality of first supporting bases (103), a plurality of first universal wheel (104) are installed to first support frame (101) lower surface equidistance, install storage case (106) on first support frame (101).
3. The fuel pipeline airtightness detection apparatus according to claim 2, wherein: the fixed plate (107) upper surface both sides all fixed mounting have first slide rail (108), two equal slidable mounting in first slide rail (108) middle part has a plurality of first slider (105), a plurality of locating lever (109) fixed mounting is respectively at first slider (105) upper surface.
4. The fuel pipeline airtightness detection apparatus according to claim 3, wherein: the positioning rods (109) are all high and low, and a stop block (116) is fixedly mounted in the middle of each support rod (110).
5. The fuel pipeline airtightness detection apparatus according to claim 4, wherein: one of them fixed surface installs backup pad (118) on first slider (105), fixed surface installs installation pole (115) on backup pad (118), installation pole (115) one end fixed mounting has funnel (117).
6. The fuel pipeline airtightness detection apparatus according to claim 5, wherein: the dust collection box (113) is fixedly mounted on the side face of the first supporting rod (102), the suction pump (114) is mounted at a box opening of the dust collection box (113), and the output end of the suction pump (114) is connected with a leakage opening at one end of the funnel (117) through a vent pipe.
7. The fuel pipeline airtightness detection apparatus according to claim 6, wherein: second support frame (203) lower surface equidistance fixed mounting has a plurality of second support base (205), a plurality of second every phenomenon wheel (204) are installed to second support frame (203) lower surface equidistance, fixed mounting has gas pitcher (201) on second support frame (203), second support frame (203) side fixed mounting has control cabinet (202).
8. The fuel pipeline airtightness detection apparatus according to claim 7, wherein: fixed surface installs mounting bracket (206) on second support frame (203), mounting bracket (206) upper surface one side fixed mounting has switch board (207), mounting bracket (206) upper surface one side fixed mounting has display (208), horizontal pole (215) are all installed to the one side that first locating rack (214), second locating rack (216) are close to each other.
9. The fuel pipeline airtightness detection apparatus according to claim 8, wherein: the equal fixed mounting second slide rail (210) in roof-rack (209) upper surface both sides, the equal slidable mounting in second slide rail (210) middle part has second slider (212), limiting plate (213) fixed mounting is between two second slider (212) upper surfaces.
10. The fuel pipeline airtightness detection apparatus according to claim 9, wherein: first locating rack (214) upper surface slidable mounting has first splint (218), fixed surface installs first pneumatic cylinder (219) on first locating rack (214), first pneumatic cylinder (219) output sets up on first splint (218), fixed surface installs second splint (222) on second locating rack (216), fixed surface installs second pneumatic cylinder (221) on second locating rack (216), second pneumatic cylinder (221) output sets up at second splint (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310054547.9A CN115979520A (en) | 2023-02-03 | 2023-02-03 | Fuel pipeline gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310054547.9A CN115979520A (en) | 2023-02-03 | 2023-02-03 | Fuel pipeline gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115979520A true CN115979520A (en) | 2023-04-18 |
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ID=85970189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310054547.9A Pending CN115979520A (en) | 2023-02-03 | 2023-02-03 | Fuel pipeline gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115979520A (en) |
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2023
- 2023-02-03 CN CN202310054547.9A patent/CN115979520A/en active Pending
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