CN202166508U - Intelligent airtightness checking instrument of self-rescuer - Google Patents
Intelligent airtightness checking instrument of self-rescuer Download PDFInfo
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- CN202166508U CN202166508U CN2011203100766U CN201120310076U CN202166508U CN 202166508 U CN202166508 U CN 202166508U CN 2011203100766 U CN2011203100766 U CN 2011203100766U CN 201120310076 U CN201120310076 U CN 201120310076U CN 202166508 U CN202166508 U CN 202166508U
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- intelligent self
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- 238000003825 pressing Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000003245 coal Substances 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract 3
- 238000012797 qualification Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 230000002222 downregulating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to an intelligent airtightness checking instrument of a self-rescuer. The intelligent airtightness checking instrument comprises a working chamber (1), a checking station (2), a sealing press device (4) and a compaction device (5), wherein the checking station is arranged at the upper end of the working chamber; the sealing press device is detachably connected with the outer side of the checking station by a connector (3); the sealing press device comprises a pressing board (41) connected adjustably and a sealing cover (42) positioned above the pressing board; a hollow cavity (421) is arranged at the center of the sealing cover and is used for containing the compaction device; the compaction device is provided with an eccentric wheel (52); and the eccentric wheel is pressed downward onto the pressing board, or the eccentric wheel is released from the pressing board, the working station can be sealed and pressed or opened. The airtightness checking instrument also comprises a control checking system that is connected with the working chamber, provides automatic pressurization and checking and can be used for comparing automatically, displaying the pressure value of the whole process accurately, judging the qualification automatically, recording the qualified number and reporting the checking result in an acousto-optic form. The intelligent airtightness checking instrument is simple in structure, is convenient to operate, can greatly improve the automatic level of the checking of the self-rescuer, provides the high-accuracy pressure testing result and is used for checking a self-rescuer produced by a self-rescuer manufacturer and a self-rescuer used in a coal mine.
Description
Technical field
The utility model relates to a kind of airtight tester, specifically is the airtight tester of intelligent self-rescuer of a kind of high accuracy number demonstration and voice report type.
Background technology
Self-rescuer is when breaking out of fire under coal mine, gas, coal dust explosion, coal and gas are outstanding; Preventing a kind of respiratory protection utensil of carrying into well personnel poisonous gas poisoning or anoxia asphyxia, is a kind of important device that the self-rescue of miner escape is used when under the coal mine disaster accident taking place.And airtight verification is one of main means of inspection self-rescuer quality.The airtight tester of present self-rescuer relies on earlier artificial pressurized operation chamber to make the pressure of operating room rise to the big probable value of a setting, the air pressure that cooperates water manometer to come the testing chamber then, and whether measure the self-rescuer sealing in view of the above qualified; Or, take out certain negative pressure with vacuum pump to the Jia Shui of seal glass operating room, whether estimate verification self-rescuer sealing qualified.Like this, reviewer's labour intensity is big in checkout procedure, while reason manual control pressure, and each check results reads inconvenience, is difficult to guarantee the reliability of check and the requirement of precision.And a good self-rescuer is the important device that personnel's hedging is made in the down-hole, so the accuracy of detection and the convenient and reliable operation property that improve the airtight verification of self-rescuer are necessary.
The utility model content
In order to overcome the deficiency of above-mentioned prior art; Solve problems such as the big and reading numerical values out of true of artificial pressure control, labour intensity, the utility model provides a kind of intelligent self-rescuer airtight tester, adopts eccentric wheel structure; One key operation is easy to operate; Automatically accomplish pressurization, pressure detection, condition processing, with the working method that digitize voice and LCD are informed the subscriber checking result, easy to use.
The airtight tester of intelligent self-rescuer of the utility model comprises: operating room, monitor station, envelope pressure device and hold down gag; Said monitor station is fixedly arranged on the upper end of operating room; Said envelope pressure device removably is connected through web member with the outside of monitor station; Said envelope pressure device comprises pressing plate that is connected through adjustable screw and the capping that is positioned at this pressing plate top, and the central authorities of this capping have a cavity, and said hold down gag is arranged in this cavity through its centrally-pivoted axle; This hold down gag comprises eccentric wheel, and this eccentric wheel is used to press down or unclamps said pressing plate and then operating room envelope is pressed or opened.
Further, said web member is front support rod and back support rod, and said front support rod and back support rod pass the bolt hole in the said envelope pressure device outside and the monitor station outside respectively, removably are connected with monitor station thereby will seal pressure device.
Further, said hold down gag also comprises eccentric rod and handle, and handle is connected with the upper end of eccentric rod through screw thread, and said eccentric wheel is installed in the lower end of eccentric rod through deep groove ball bearing.
Further, the upper surface centre of said pressing plate is equipped with a regulating block, and this regulating block aligns with the centrally-pivoted axle of the said hold down gag of top mutually.
Further, the upper surface of said monitor station is provided with O-ring seal.
Further, the upper surface of said capping is provided with an eccentric wheel stop means, and this stop means comprises that the adjusting seat and the level of the center through hole the right edge that is fixed on said capping are located in the adjuster bar of regulating in the seat.
Further; The both sides of said capping are respectively equipped with T shape through hole, and said screw is located in respectively in the corresponding T shape through hole, and the lower end of screw is connected with said pressing plate again; Each screw is arranged with spring outward, and spring is compressed between the bottom of head and corresponding T shape through hole of this screw.
Further, said capping is provided with the screw cover plate that is used to cover each T shape through hole.
Further, said operating room is the cylindrical container of open upper end, and said monitor station is an annular platform, and both match at the internal diameter identical appearance.
Further; The airtight tester of said intelligent self-rescuer also comprises the control and detection system of joining with the operating room; This control and detection system is made up of master control circuit board and the pressure unit that is connected with this master control circuit board, solid-state relay, LCD MODULE, voice module and check results pilot lamp, and solenoid valve links to each other with solid-state relay respectively with force (forcing) pump; Wherein, pressure unit connects the operating room, is used for the pressure of testing chamber and will detects the single-chip microcomputer that data pass to master control circuit board; The single-chip microcomputer of master control circuit board is accomplished the pressure on the number process is detected and conversion, operates said solenoid valve, force (forcing) pump, LCD, solid-state relay and check results pilot lamp according to measurement result; Said solid-state relay drives force (forcing) pump work, and force (forcing) pump is operating room's pressurization; Said LCD is used to show testing process information; Said voice module is used for the speech signal amplification and delivers to sending of loudspeaker implementation language.
The airtight tester of this intelligent self-rescuer; Automatically pressurize through control and detection system, stop pressurization automatically after pressurization is accomplished, automatically relatively; The force value that accurately shows whole process; Automatically it is qualified to judge whether, and with light emitting diode and voice dual mode report testing result, and the record passing number.
In sum, compared with prior art, the useful technique effect of the airtight tester of intelligent self-rescuer of the utility model is:
1. improved the automatization level of self-rescuer verification greatly.The user only need put into the operating room with self-rescuer, after operating room's envelope is pressed, can pass through a key operation, accomplishes pressurization, pressure detection, condition processing automatically, and informs the subscriber checking result with digitize voice and 12864 LCDs.
2. high-precision pressure test result can be provided.Owing to adopted high-precision pressure unit, guaranteed result's precision in the context of detection of pressure, its pressure precision is 1Pa.
3. alleviated the labour intensity of operation greatly.Owing to adopted the envelope pressure device of mechanical work-saving device eccentric wheel structure, the user only needs just can the finish the work envelope pressure of chamber of operating grip gently, as long as and press start key and just can accomplish testing process.
4. has the function that voice and LCD are informed testing result.When accomplish the testing process instrument can differentiate according to the data result that detects whether qualified, and with voice suggestion " airtight being up to the standards " or " gas leakage, defective ", and value that can the decline of liquid crystal display pressure.
5. how many functions that has the record passing number can be when the qualified quantity of inferior check product by recording user.
The utility model is simple in structure, and is easy to operate, can improve the automatization level of self-rescuer verification greatly, and high-precision pressure test result can be provided, and is mainly used in the detection of the used self-rescuer of self-rescuer and colliery of self-rescuer manufacturer production.
Description of drawings
Fig. 1 is the sectional front view of the utility model.
Fig. 2 is the block scheme of the control and detection system of the utility model.
Among the figure:
The 2-of 1-operating room monitor station 3-web member 4-seals pressure device
5-hold down gag 6-eccentric wheel stop means 21-O-ring seal 31-front support rod
32-back support rod 41-pressing plate 42-capping 43-screw
44-regulating block 421-cavity 422-T shape through hole 423-screw cover plate
51-eccentric rod 52-eccentric wheel 53-handle 61-regulates seat
The 62-adjuster bar
Concrete embodiment
Below in conjunction with accompanying drawing the concrete structure and the principle of work of the utility model are done further detailed description.
As shown in Figure 1, the airtight tester of intelligent self-rescuer of the utility model comprises operating room 1, monitor station 2, web member 3, envelope pressure device 4 and hold down gag 5.Said operating room 1 is the cylindrical container of open upper end, and said monitor station 2 is an annular platform, and it is fixedly arranged at the upper end of operating room 1, and both match at the internal diameter identical appearance.Envelope pressure device 4 mainly is made up of pressing plate 41 and the capping 42 that is positioned at pressing plate 41 tops, is connected through adjustable screw 43 between pressing plate 41 and the capping 42.Envelope pressure device 4 is connected through web member 3 with the outside of monitor station 2; Web member 3 is front support rod 31 and back support rod 32 here, and front support rod 31 passes the bolt hole that seals the pressure device 4 and monitor station 2 outsides respectively with back support rod 32 and will seal pressure device 4 and removably be connected with monitor station 2.The central authorities of capping 42 have a big through hole to form a cavity 421, and said hold down gag 5 just is arranged in this cavity 421.Hold down gag 5 is to be located in the cavity 421 through the centrally-pivoted axle that is fixed on cavity 421 inwalls.This hold down gag 5 comprises eccentric rod 51, eccentric wheel 52 and handle 53, and handle 53 is connected with the upper end of eccentric rod 51 through screw thread, and eccentric wheel 52 is installed in the lower end of eccentric rod 51 through deep groove ball bearing.
The upper surface centre of said pressing plate 41 is equipped with a regulating block 44, and this regulating block 44 aligns with the centrally-pivoted axle of the hold down gag 5 of top mutually.Regulating block 44 can be connected with pressing plate 41 through connectors such as bolts.Through the handle 53 of operating said hold down gag 5, can utilize eccentric wheel 52 to apply downward pressure for regulating block 44, to pressing down regulating block 44, thereby monitor station 2 is pressed to, compresses and sealed to pressing plate 41.Upper surface at monitor station 2 is provided with O-ring seal 21.When operating grip 53, eccentric wheel 52 can be regulated the decrement of O-ring seal 21 when pressing down regulating block 44.
The upper surface of said capping 42 also is provided with an eccentric wheel stop means 6, and this stop means 6 comprises that the adjusting seat 61 and the level of the center through hole the right edge that is fixed on capping 42 are located in the adjuster bar of regulating in the seat 61 62.Stop means 6 is used to limit the swing position of eccentric rod 51; Adjuster bar 62 stretches out the length of regulating seat 61 also can be regulated, and regulates the swing position of eccentric rod 51 with this.
As stated, be connected through adjustable screw 43 between pressing plate 41 and the capping 42 of envelope pressure device 4.As shown in Figure 1; Be respectively equipped with T shape through hole 422 in the both sides of capping 42, said screw 43 is located in respectively in the T shape through hole 422, and the lower end of screw 43 is connected with pressing plate 41 again; And the outer springs that are arranged with of screw 43, spring is compressed between the bottom of head and T shape through hole 422 of screw 43.In capping 42, also be provided with the screw cover plate 423 that is used to cover each T shape through hole 422, so that screw 43 restrictions and envelope are pressed within the T shape through hole 422.Preferably, pressing plate 41 is made up of top board and lower platen two boards, and top board is provided with three threaded holes, is respectively applied for screw 43 to be connected with regulating block 44.Preferably, front support rod 31 is bolts with back support rod 32.
At first, cramp bar 31 before pulling down is raised envelope pressure device 4 and hold down gag 5, thereby opens wide operating room 1.Then, product to be checked is put into operating room 1, put into corresponding filling block, cramp bar 31 and fastening nut locking before loading onto.At this moment, operating grip 53 again, utilize eccentric wheel 52 to pressing down regulating block 44, and then pressing plate 41 is pressed to monitor station 2 and monitor station 2 envelopes are pushed down, thereby work air chamber and a pressurization of a detection and the container that keep-ups pressure are provided.
The utility model also provides a kind of supporting tester control and detection system for the airtight tester of intelligent self-rescuer, and itself and operating room join.As shown in Figure 2, this control and detection system is made up of pressure unit, force (forcing) pump, solenoid valve, solid-state relay, 12864 LCDs, voice module, button and pilot lamp, master control circuit board.
Pressure unit connects the operating room, is mainly used in the detection of pressure, monitors pressurizeing and keep-uping pressure, and data are passed to the single-chip microcomputer of master control circuit board.Force (forcing) pump is operating room's pressurization, and the Single-chip Controlling solid-state relay by master control circuit board makes force (forcing) pump work, and electromagnetic switch is opened, and through flexible pipe connection electromagnetic switch gas is pressed into the operating room, thereby operating room's pressure rises; When the single-chip microcomputer of master control circuit board detects operating room's pressure and equals setting value, turn-off electromagnetic switch, turn-off solid-state relay and stop pressurization.The effect of CS is the testing process that starts single.Master control circuit board mainly is used to provide power supply and with accomplishing the pressure on the number process is detected and conversion, removes to operate respective electrical magnet valve, force (forcing) pump, LCD, solid-state relay, loudspeaker, check results pilot lamp according to the result who measures.LCD shows the information in the testing process, like the process status of each grade section and pressure value, pressure decline numerical value, qualified quantity etc.Voice module mainly amplifies speech signal, and delivers to loudspeaker and accomplish sending of language.Power supply is handled after the civil power step-down by Switching Power Supply, distinguishes supply pressure transmitter, CS, master control circuit board, LCD, check results pilot lamp, start-up operation switch and voice module then.
Self-rescuer to be detected is put in the operating room, and put into corresponding filling block, the effect of filling block is the space difference of replenishing the different shared operating rooms of the volume of its self-rescuer.The operating grip bar makes it operating room constituted the container of a sealing then.Press starting switch,, drive force (forcing) pump and solenoid valve, pressurize to the operating room by solid-state relay by the Single-chip Controlling solid-state relay of master control circuit board.Simultaneously, when the single-chip microcomputer of master control circuit board detects the force value that is sent by pressure unit, when being pressurized to the pressure (5500P or 13730P are optional) that presets, turn-off solid-state relay, turn-off solenoid valve, stop the force (forcing) pump pressurization.Behind the 10s, when pressure is in steady state (SS), reads force value and be original pressure value (be not less than 5000P or 13340P is optional).Malleation in the operating room is kept,, read the force value that the retention time finishes again through the retention time of 15s.The difference of the force value that original pressure value and retention time finish is exactly the value that pressure descends; The required value of the standard of this difference and the airtight verification of self-rescuer compared (drop-out value of filtering type is not more than 98P; The drop-out value of isolation type is not more than 78P), whether draw test product qualified.According to the result who detects, through Single-chip Controlling liquid crystal display displays result, and with the passing number renewal, the check results pilot lamp indicates qualified and underproof state then.At last,, testing result is seen off with the mode of sound through Single-chip Controlling voice power amplifier, thus the testing of completion single.
Claims (10)
1. airtight tester of intelligent self-rescuer; Comprise: operating room (1), monitor station (2), envelope pressure device (4) and hold down gag (5); It is characterized in that: said monitor station (2) is fixedly arranged on the upper end of operating room (1); Said envelope pressure device (4) removably is connected through web member (3) with the outside of monitor station (2); Said envelope pressure device (4) comprises the pressing plate (41) that is connected through adjustable screw (43) and is positioned at the capping (42) of this pressing plate (41) top, and the central authorities of this capping (42) have a cavity (421), and said hold down gag (5) is arranged in this cavity (421) through its centrally-pivoted axle; This hold down gag (5) comprises eccentric wheel (52), and this eccentric wheel (52) is used to press down or unclamps said pressing plate (41) and then operating room (1) envelope is pressed or opened.
2. the airtight tester of intelligent self-rescuer according to claim 1; It is characterized in that: said web member (3) comprises front support rod (31) and back support rod (32), and said front support rod (31) and back support rod (32) pass said envelope pressure device (4) outside respectively and will seal pressure device (4) with bolt hole outside the monitor station (2) and removably be connected with monitor station (2).
3. the airtight tester of intelligent self-rescuer according to claim 2; It is characterized in that: said hold down gag (5) also comprises eccentric rod (51) and handle (53); Said handle (53) is connected with the upper end of said eccentric rod (51), and said eccentric wheel (52) is installed in the lower end of said eccentric rod (51) through deep groove ball bearing.
4. the airtight tester of intelligent self-rescuer according to claim 3 is characterized in that: the upper surface centre of said pressing plate (41) is equipped with a regulating block (44), and this regulating block (44) aligns with the centrally-pivoted axle of the said hold down gag (5) of top mutually.
5. according to the airtight tester of each described intelligent self-rescuer of claim 1-4; It is characterized in that: the upper surface of said capping (42) is provided with an eccentric wheel stop means (6), and this stop means (6) comprises that the adjusting seat (61) and the level of the center through hole the right edge that is fixed on said capping (42) are located in the adjuster bar of regulating in the seat (61) (62).
6. the airtight tester of intelligent self-rescuer according to claim 5; It is characterized in that: the both sides of said capping (42) are respectively equipped with T shape through hole (422); Said screw (43) passes corresponding T shape through hole (422) respectively; The lower end of said screw (43) is connected with pressing plate (41) again, and the outer spring that is arranged with of each said screw (43), and spring is compressed between the bottom of head and corresponding T shape through hole (422) of this screw (43).
7. the airtight tester of intelligent self-rescuer according to claim 6 is characterized in that: said capping (42) is provided with the screw cover plate (423) that is used to cover each T shape through hole (422).
8. according to claim 1-4, the airtight tester of 6 or 7 each described intelligent self-rescuers, it is characterized in that: the upper surface of said monitor station (2) is provided with O-ring seal (21).
9. the airtight tester of intelligent self-rescuer according to claim 8 is characterized in that: said operating room (1) is the cylindrical container of open upper end, and said monitor station (2) is an annular platform, and both match at the internal diameter identical appearance.
10. the airtight tester of intelligent self-rescuer according to claim 9; It is characterized in that: the airtight tester of said intelligent self-rescuer also comprises the control and detection system of joining with the operating room; This control and detection system is made up of master control circuit board and the pressure unit that is connected with master control circuit board, solid-state relay, LCD MODULE, voice module and check results pilot lamp, and solenoid valve links to each other with solid-state relay respectively with force (forcing) pump; Wherein, pressure unit connects the operating room, is used for the pressure of testing chamber and will detects the single-chip microcomputer that data pass to master control circuit board; The single-chip microcomputer of master control circuit board is accomplished the pressure on the number process is detected and conversion, operates said solenoid valve, force (forcing) pump, LCD, solid-state relay and check results pilot lamp according to measurement result; Solid-state relay drives force (forcing) pump work, and force (forcing) pump is operating room's pressurization; LCD is used to show testing process information; Voice module is used for the speech signal amplification and delivers to sending of loudspeaker implementation language.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203100766U CN202166508U (en) | 2011-08-24 | 2011-08-24 | Intelligent airtightness checking instrument of self-rescuer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203100766U CN202166508U (en) | 2011-08-24 | 2011-08-24 | Intelligent airtightness checking instrument of self-rescuer |
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| Publication Number | Publication Date |
|---|---|
| CN202166508U true CN202166508U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203100766U Expired - Fee Related CN202166508U (en) | 2011-08-24 | 2011-08-24 | Intelligent airtightness checking instrument of self-rescuer |
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| Country | Link |
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| CN (1) | CN202166508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728109A (en) * | 2013-12-23 | 2014-04-16 | 西安轨道交通装备有限责任公司 | Quick connector for pressure maintaining test |
| CN104897346A (en) * | 2015-06-30 | 2015-09-09 | 南车南京浦镇车辆有限公司 | Bogie sleeper beam air plugging device |
-
2011
- 2011-08-24 CN CN2011203100766U patent/CN202166508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728109A (en) * | 2013-12-23 | 2014-04-16 | 西安轨道交通装备有限责任公司 | Quick connector for pressure maintaining test |
| CN104897346A (en) * | 2015-06-30 | 2015-09-09 | 南车南京浦镇车辆有限公司 | Bogie sleeper beam air plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WANG LIHUI WU BIN WANG SHENGCHU GUO JIANXIANG LONG WENBIN Effective date: 20130911 Owner name: HUNAN COAL MINE SAFETY EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LU JIANWEI Effective date: 20130911 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130911 Address after: In the 410013 Hunan province Changsha city view of Sandy Ridge Industrial Park Patentee after: Hunan Coal Mine Safety Equipment Co., Ltd. Address before: Yuelu District City, Hunan province 410013 Changsha view of Sandy Ridge Industrial Park Patentee before: Lu Jianwei Patentee before: Wang Lihui Patentee before: Wu Bin Patentee before: Wang Shengchu Patentee before: Guo Jianxiang Patentee before: Long Wenbin |
|
| 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: 20120314 Termination date: 20170824 |