CN210020928U - Intelligent active fire extinguishing device - Google Patents
Intelligent active fire extinguishing device Download PDFInfo
- Publication number
- CN210020928U CN210020928U CN201920458962.XU CN201920458962U CN210020928U CN 210020928 U CN210020928 U CN 210020928U CN 201920458962 U CN201920458962 U CN 201920458962U CN 210020928 U CN210020928 U CN 210020928U
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- fixed
- fire
- plate
- servo motor
- mounting
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000007921 spray Substances 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000009970 fire resistant effect Effects 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 15
- 239000012141 concentrate Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses an intelligent active fire extinguishing device, which comprises a fixed plate, an installation pipe vertically passing through the fixed plate and rotationally connected with the fixed plate, a mounting plate fixed at the lower end of the installation pipe, a mounting frame fixed at the bottom of the mounting plate, a spray header, a solenoid valve communicated with the spray header, a water inlet pipe with one end communicated with a fire-fighting high-pressure water source and the other end communicated with the solenoid valve, and a control part arranged on the fixed plate; the control part comprises a plurality of temperature sensors fixed on the bottom surface of the fixing plate and a controller fixed on the upper surface of the fixing plate, the controller is electrically connected with the temperature sensors and the electromagnetic valves respectively, and the plurality of temperature sensors are uniformly distributed around the axis of the mounting pipe; the fixed plate is also provided with a driving part which is driven by the controller and drives the mounting pipe to rotate. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization for the fire water is concentrated and is sprayed the position to indoor conflagration breaing out, has saved the fire water, and fire extinguishing effect is good.
Description
Technical Field
The utility model relates to an indoor field of putting out a fire, in particular to intelligence initiative extinguishing device.
Background
Present indoor use's consumption equipment mostly arranges the fire hazard of installing on indoor roof and feels the detector with the cigarette, and when detecting there is flue gas or flame, the water spray solenoid valve in the detector is felt with the cigarette to the fire hazard opens for fire-fighting water spouts down from the roof, thereby reaches the effect of putting out a fire. However, the smoke detector for fire generally has a plurality of positions uniformly arranged on an indoor roof, when a fire locally occurs indoors, the smoke detector for fire on the roof sprays water simultaneously, so that all positions in the room are sprayed with water, waste of fire-fighting water is caused, the fire-fighting water is difficult to concentrate on the position where the fire occurs, and the fire-fighting effect is general.
Therefore, an intelligent active fire extinguishing device is urgently needed, the fire extinguishing device can concentrate fire-fighting water to be sprayed to the indoor fire-fighting position, the fire-fighting water is saved, and the fire extinguishing effect is good.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing an intelligence initiative extinguishing device, this extinguishing device make the fire-fighting water concentrate and spray to the position of indoor emergence conflagration, have saved the fire-fighting water, and fire extinguishing effect is good.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an intelligent active fire extinguishing device comprises a fixed plate embedded on an indoor ceiling, an installation pipe vertically penetrating through the fixed plate and rotatably connected with the fixed plate, an installation plate fixed at the lower end of the installation pipe, an installation frame fixed at the bottom of the installation plate, a spray header arranged on the installation frame, an electromagnetic valve arranged at the upper end of the installation pipe and communicated with the spray header, a water inlet pipe with one end communicated with a fire-fighting high-pressure water source and the other end communicated with the electromagnetic valve, and a control part arranged on the fixed plate; the control part comprises a plurality of temperature sensors fixed on the bottom surface of the fixing plate and a controller fixed on the upper surface of the fixing plate, the controller is electrically connected with the temperature sensors and the electromagnetic valves respectively, and the plurality of temperature sensors are uniformly distributed around the axis of the mounting pipe; and the fixed plate is also provided with a driving part which is driven by the controller and drives the mounting pipe to rotate.
Through adopting above-mentioned technical scheme, when the conflagration takes place for indoor somewhere position, the temperature sensor who is close to this position detects the temperature rise in this position and sends signal to controller, the work of controller drive division, make the installation pipe rotate, thereby make and set up mounting bracket and the shower head that installs the pipe lower extreme and rotate, until the shower head is aimed at the position of taking place the conflagration, controller transmission opening signal to solenoid valve this moment, make shower head spun fire control water concentrate and spray the position of taking place the conflagration in indoor, the fire control water has been saved, the fire extinguishing effect has been strengthened.
The utility model is further arranged in that the driving part comprises a fixed frame fixed on the upper surface of the fixed plate, a first servo motor fixed on the fixed frame, a first gear fixed on the output shaft of the first servo motor and a second gear sleeved on the upper end of the mounting pipe and fixed with the mounting pipe, and the second gear is meshed with the first gear; the first servo motor is electrically connected with the controller.
Through adopting above-mentioned technical scheme, when being close to the temperature sensor send signal to the controller of conflagration, the controller sends drive signal to a servo motor for a servo motor's output shaft rotates, has driven first gear and second gear rotation, has driven the installation pipe and has rotated, and first servo motor stall when the delivery port orientation indoor conflagration position of shower head makes the interior spun fire control water of shower head spray to the conflagration position.
The utility model discloses further set up to, be fixed with the first fire-resistant cover of making by refractory material on the mount, a servo motor set up in the first fire-resistant cover.
Through adopting above-mentioned technical scheme, first servo motor sets up in the first fire-resistant cover that refractory material made for first servo motor avoids the harm of conflagration.
The utility model is further arranged in such a way that one end of the spray head, which is far away from the water outlet of the spray head, is rotatably connected with the inner side wall of the mounting frame, and a second servo motor is fixed on the mounting frame; the axis of the output shaft of the second servo motor is superposed with the rotation axis of the spray header, the output shaft of the second servo motor is fixed with the spray header, and the second servo motor is electrically connected with the controller.
Through adopting above-mentioned technical scheme, when the delivery port of shower head aimed at the position of conflagration, the work of controller control second servo motor drives the shower head and rotates for fire control water that erupts from the shower head sprays a plurality of positions in this position, thereby has enlarged the scope of spraying of fire control water, has strengthened fire control effect.
The utility model discloses further set up to, still be fixed with the fire-resistant cover of second of being made by refractory material on the mounting bracket, second servo motor set up in the fire-resistant cover of second.
Through adopting above-mentioned technical scheme, second servo motor sets up in the second fire-resistant cover that refractory material made for second servo motor avoids the harm of conflagration.
The utility model discloses further set up to, the solenoid valve with be equipped with fire hose between the shower head, fire hose set up in the installation, fire hose one end with the solenoid valve intercommunication, the other end passes the mounting panel and with the shower head intercommunication.
Through adopting above-mentioned technical scheme, when the shower head rotated, the relative position of shower head and solenoid valve changed, and at this moment, the fire-resistant hose bending deformation for the fire-fighting water still flows to in the shower head from the solenoid valve smoothly.
The utility model is further arranged in that the spray head comprises a fixed column which is rotationally connected with the mounting plate and is fixed with the output shaft of the second servo motor, a water inlet sleeve which is fixed with the fixed column and is communicated with the fire-resistant hose, a horn tube which is fixed at the opening end of the water inlet sleeve and a water outlet plate which is fixed in the horn tube; a plurality of water outlet holes are formed in the water outlet plate.
Through adopting above-mentioned technical scheme, when the solenoid valve was opened, the intraductal high pressure water of intaking passed through the fire-resistant hose and got into in the water inlet sleeve and got into the horn tube, and finally the intraductal high pressure fire-fighting water of horn tube erupts from a plurality of apopores on the water outlet plate, has disperseed the injection of fire-fighting water, has enlarged the fire-fighting water and has sprayed the area in the conflagration position, has strengthened the fire extinguishing effect.
The utility model discloses further set up to, the axis of apopore is skew the axis of horn tube is radial setting.
Through adopting above-mentioned technical scheme, the axis of apopore is radially for the spray direction dispersion of the water column that erupts from the shower head is favorable to expanding the fire control water and sprays in the area of conflagration position, has strengthened the fire control effect.
To sum up, the utility model discloses a beneficial technological effect does:
1. when a fire breaks out at a certain indoor position, the temperature sensor close to the position detects the temperature rise of the position and sends a signal to the controller, the controller drives the driving part to work, so that the installation pipe rotates, the installation frame and the spray header arranged at the lower end of the installation pipe rotate until the spray header is aligned to the position where the fire breaks out, and at the moment, the controller sends an opening signal to the electromagnetic valve, so that the fire-fighting water sprayed by the spray header is sprayed to the position where the fire breaks out indoors in a centralized manner, the fire-fighting water is saved, and the fire-fighting effect is enhanced;
2. when the water outlet of the spray header is aligned to the direction of a fire disaster, the controller controls the second servo motor to work to drive the spray header to rotate, so that the fire-fighting water sprayed from the spray header is sprayed at a plurality of positions in the direction, the spraying range of the fire-fighting water is expanded, and the fire-fighting effect is enhanced;
3. when the electromagnetic valve is opened, high-pressure water in the water inlet pipe enters the water inlet sleeve through the fire-resistant hose and enters the horn tube, and finally high-pressure fire-fighting water in the horn tube is ejected from the plurality of water outlet holes in the water outlet plate, so that the ejection of the fire-fighting water is dispersed, the area of the fire-fighting water ejected to a fire position is enlarged, and the fire-fighting effect is enhanced.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
fig. 2 is a schematic view of the internal structure of the embodiment.
In the figure: 1. a fixing plate; 2. installing a pipe; 21. rotating the disc; 3. mounting a plate; 4. a mounting frame; 41. a second servo motor; 42. a second refractory cover; 5. a shower head; 51. fixing a column; 52. a water inlet sleeve; 53. a flare tube; 54. a water outlet plate; 541. a water outlet hole; 6. an electromagnetic valve; 61. a fire-resistant hose; 7. a water inlet pipe; 8. a drive section; 81. a fixed mount; 811. a first refractory cover; 82. a first servo motor; 83. a first gear; 84. a second gear; 9. a control unit; 91. a temperature sensor; 92. and a controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an intelligent active fire extinguishing apparatus comprises a fixing plate 1, a mounting pipe 2, a mounting plate 3, a mounting rack 4, a spray header 5, an electromagnetic valve 6, a water inlet pipe 7, a driving part 8 and a control part 9. The fixed plate 1 is of a circular plate-shaped structure, is embedded on an indoor ceiling and is fixed with the ceiling, and the bottom surface of the fixed plate 1 is flush with the bottom surface of the ceiling. The mounting tube 2 is in a circular tube shape, vertically penetrates through the center of the bottom surface of the fixing plate 1 and is rotatably connected with the fixing plate 1. The mounting plate 3 is circular plate-shaped, the axis of the mounting plate coincides with the axis of the mounting pipe 2, and the upper surface of the mounting plate 3 is fixed with the end face of the lower end of the mounting pipe 2. The mounting bracket 4 is a plate-shaped structure with a U-shaped cross section, two ends of the mounting bracket are downward, and the upper surface of the mounting bracket 4 is fixed with the bottom surface of the mounting plate 3.
As shown in fig. 2, the shower head 5 includes a fixed column 51, a water inlet sleeve 52, a bell pipe 53 and a water outlet plate 54, and as shown in fig. 1, the fixed column 51 is a cylindrical structure, one end of which is disposed in the mounting frame 4 and is rotatably connected with an inner side wall of one side of the mounting frame 4, and a rotation axis of the fixed column 51 passes through an axis thereof and is perpendicular to the axis. Be equipped with second servo motor 41 and second fire-resistant cover 42 on the mounting bracket 4, second servo motor 41 is fixed with the lateral wall of mounting bracket 4, and the output shaft of second servo motor 41 passes the inside wall of mounting bracket 4 and fixed with fixed column 51 outer wall. The second refractory cover 42 is a rectangular box-shaped structure, made of a ceramic material, and is sleeved on the second servo motor 41, and the surface of the opening of the second refractory cover 42 is fixed to the outer side wall of the mounting frame 4 close to the second servo motor 41. The water inlet sleeve 52 is of a sleeve-shaped structure with a circular cross section, and the end face of the closed end of the water inlet sleeve is fixed with the end face of the fixed column 51 far away from the mounting frame 4. The cross section of the flared tube 53 is circular, one end of the flared tube is opened relatively, the other end of the flared tube is opened relatively, and the smaller end of the flared tube is fixed to the open end face of the water inlet sleeve 52. The water outlet plate 54 is a circular plate, the axis of the water outlet plate coincides with the axis of the bell pipe 53, and the arc surface of the water outlet plate 54 is fixed with the inner wall of the bell pipe 53. The circular surface of the water outlet plate 54 is provided with water outlet holes 541, the cross sections of the water outlet holes 541 are circular and are distributed over the circular surface of the water outlet plate 54, and the axes of the water outlet holes 541 deviate from the axis of the bell-mouthed tube 53 and are inclined radially, so that water columns jetted from the water outlet plate 54 are scattered and jetted.
As shown in fig. 1 and 2, a rotary disc 21 is provided at the upper end of the mounting tube 2, the rotary disc 21 is disc-shaped, the axis thereof coincides with the axis of the mounting tube 2, and the bottom surface of the rotary disc 21 is rotatably connected to the upper end of the mounting tube 2. The electromagnetic valve 6 is embedded in the center of the upper surface of the rotating disc 21 and fixed with the rotating disc 21, the water inlet pipe 7 is in a circular pipe shape, one end of the water inlet pipe is communicated with the electromagnetic valve 6, and the other end of the water inlet pipe is communicated with a high-pressure fire-fighting water source of a house. A fire-resistant hose 61 is arranged between the electromagnetic valve 6 and the spray header 5, the fire-resistant hose 61 is made of fire-resistant rubber material, one end of the fire-resistant hose is communicated with the electromagnetic valve 6, and the other end of the fire-resistant hose sequentially penetrates through the upper surfaces of the mounting plate 3 and the mounting frame 4 and is fixed and communicated with the outer wall of the water inlet sleeve 52. The driving part 8 includes a fixing frame 81, a first servo motor 82, a first gear 83 and a second gear 84, the fixing frame 81 is an L-shaped plate structure, and one end of the fixing frame 81 is vertically downward and fixed to the upper surface of the fixing plate 1. The first servo motor 82 is fixed on the upper surface of the fixing frame 81, and the output shaft of the first servo motor 82 penetrates through the upper surface of the fixing frame 81. The axis of the first gear 83 coincides with the axis of the output shaft of the first servomotor 82, and the upper end surface of the first gear 83 is fixed to the end of the output shaft of the first servomotor 82. The second gear 84 is disposed on the upper side of the fixing plate 1, sleeved on the mounting tube 2 and fixed to the outer wall of the mounting tube 2, and the second gear 84 is engaged with the first gear 83. The fixing frame 81 is further provided with a first fire-resistant cover 811, the first fire-resistant cover 811 is rectangular box-shaped, the opening of the first fire-resistant cover 811 faces downward and is sleeved on the first servo motor 82, and the opening surface of the first fire-resistant cover 811 is fixed with the upper surface of the fixing frame 81.
As shown in fig. 2, the control unit 9 includes four temperature sensors 91 and a controller 92, the temperature sensors 91 are disposed at the lower side of the fixing plate 1 and fixed to the bottom surface of the fixing plate 1, and the four temperature sensors 91 are uniformly distributed around the axis of the fixing plate 1. The controller 92 is disposed on the fixing plate 1 and fixed to the upper surface of the fixing plate 1, and the controller 92 is electrically connected to the temperature sensor 91, the first servo motor 82, the second servo motor 41, and the solenoid valve 6, respectively.
The working principle of the embodiment is as follows: when a fire breaks out at a certain indoor place, the temperature detected by the temperature sensor 91 close to the position exceeds the standard firstly, so that the temperature sensor 91 sends a signal to the controller 92, the controller 92 sends a driving signal to the first servo motor 82, the first gear 83 and the second gear 84 rotate to drive the installation pipe 2 to rotate, the installation plate 3, the installation frame 4 and the spray pipe rotate until the larger opening of the horn 53 of the spray pipe faces the fire, the controller 92 sends an opening signal to the electromagnetic valve 6 and sends a driving signal to the second servo motor 41, so that the spray head 5 sprays fire-fighting water to the fire, meanwhile, the second servo motor 41 drives the fixed column 51 to rotate, so that the fire-fighting water sprayed from the horn 53 is scattered to the fire, the fire-fighting water is saved, and the fire-fighting effect is good.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an intelligence initiative extinguishing device, characterized by: the device comprises a fixed plate (1) embedded on an indoor suspended ceiling, an installation pipe (2) vertically penetrating through the fixed plate (1) and rotatably connected with the fixed plate, an installation plate (3) fixed at the lower end of the installation pipe (2), an installation frame (4) fixed at the bottom of the installation plate (3), a spray header (5) arranged on the installation frame (4), an electromagnetic valve (6) arranged at the upper end of the installation pipe (2) and communicated with the spray header (5), a water inlet pipe (7) with one end communicated with a fire-fighting high-pressure water source and the other end communicated with the electromagnetic valve (6), and a control part (9) arranged on the fixed plate (1); the control part (9) comprises a plurality of temperature sensors (91) fixed on the bottom surface of the fixing plate (1) and a controller (92) fixed on the upper surface of the fixing plate (1), the controller (92) is respectively electrically connected with the temperature sensors (91) and the electromagnetic valve (6), and the temperature sensors (91) are uniformly distributed around the axis of the mounting pipe (2); the fixed plate (1) is also provided with a driving part (8) which is driven by the controller (92) and drives the mounting pipe (2) to rotate.
2. An intelligent active fire suppression device as claimed in claim 1, wherein: the driving part (8) comprises a fixing frame (81) fixed on the upper surface of the fixing plate (1), a first servo motor (82) fixed on the fixing frame (81), a first gear (83) fixed on an output shaft of the first servo motor (82) and a second gear (84) sleeved on the upper end of the mounting pipe (2) and fixed with the mounting pipe, and the second gear (84) is meshed with the first gear (83); the first servo motor (82) is electrically connected to the controller (92).
3. An intelligent active fire suppression device as claimed in claim 2, wherein: a first fireproof cover (811) made of fireproof materials is fixed on the fixing frame (81), and the first servo motor (82) is arranged in the first fireproof cover (811).
4. An intelligent active fire suppression device as claimed in claim 2, wherein: one end, far away from the water outlet of the spray head (5), of the spray head is rotatably connected with the inner side wall of the mounting frame (4), and a second servo motor (41) is fixed on the mounting frame (4); the axis of the output shaft of the second servo motor (41) is overlapped with the rotation axis of the spray head (5), the output shaft of the second servo motor (41) is fixed with the spray head (5), and the second servo motor (41) is electrically connected with the controller (92).
5. An intelligent active fire suppression device as claimed in claim 4, wherein: a second fireproof cover (42) made of fireproof materials is further fixed on the mounting frame (4), and the second servo motor (41) is arranged in the second fireproof cover (42).
6. An intelligent active fire suppression device as claimed in claim 4, wherein: solenoid valve (6) with be equipped with fire-resistant hose (61) between shower head (5), fire-resistant hose (61) set up in installation pipe (2), fire-resistant hose (61) one end with solenoid valve (6) intercommunication, the other end passes mounting panel (3) and with shower head (5) intercommunication.
7. An intelligent active fire suppression device as claimed in claim 6, wherein: the spray head (5) comprises a fixed column (51) which is rotationally connected with the mounting plate (3) and is fixed with an output shaft of the second servo motor (41), a water inlet sleeve (52) which is fixed with the fixed column (51) and is communicated with the fire-resistant hose (61), a flared tube (53) which is fixed at the opening end of the water inlet sleeve (52) and a water outlet plate (54) which is fixed in the flared tube (53); the water outlet plate (54) is provided with a plurality of water outlet holes (541).
8. An intelligent active fire suppression device as claimed in claim 7, wherein: the axis of the water outlet hole (541) deviates from the axis of the horn pipe (53) and is radially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920458962.XU CN210020928U (en) | 2019-04-04 | 2019-04-04 | Intelligent active fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920458962.XU CN210020928U (en) | 2019-04-04 | 2019-04-04 | Intelligent active fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210020928U true CN210020928U (en) | 2020-02-07 |
Family
ID=69358376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920458962.XU Expired - Fee Related CN210020928U (en) | 2019-04-04 | 2019-04-04 | Intelligent active fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210020928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368448A (en) * | 2021-05-17 | 2021-09-10 | 上海景文同安机电消防工程有限公司 | Energy-concerving and environment-protective fire-fighting equipment for building |
| CN113730850A (en) * | 2021-10-11 | 2021-12-03 | 北京灵兰阁科技有限公司 | Quick response's data storage server computer lab extinguishing device and electronic equipment |
| CN114051868A (en) * | 2021-12-21 | 2022-02-18 | 上海辰山植物园 | Rapid cultivation method of rhizoma bletillae tissue culture seedlings |
-
2019
- 2019-04-04 CN CN201920458962.XU patent/CN210020928U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368448A (en) * | 2021-05-17 | 2021-09-10 | 上海景文同安机电消防工程有限公司 | Energy-concerving and environment-protective fire-fighting equipment for building |
| CN113730850A (en) * | 2021-10-11 | 2021-12-03 | 北京灵兰阁科技有限公司 | Quick response's data storage server computer lab extinguishing device and electronic equipment |
| CN114051868A (en) * | 2021-12-21 | 2022-02-18 | 上海辰山植物园 | Rapid cultivation method of rhizoma bletillae tissue culture seedlings |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |