CN111795779A - Water pressure detection device for water tap sealing performance - Google Patents
Water pressure detection device for water tap sealing performance Download PDFInfo
- Publication number
- CN111795779A CN111795779A CN202010887592.9A CN202010887592A CN111795779A CN 111795779 A CN111795779 A CN 111795779A CN 202010887592 A CN202010887592 A CN 202010887592A CN 111795779 A CN111795779 A CN 111795779A
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- cavity
- fixedly arranged
- shaft
- water
- turbine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 230000000149 penetrating Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000000903 blocking Effects 0.000 claims description 6
- 239000002965 rope Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a water pressure detection device for the sealing performance of a water faucet, which comprises a device body, wherein a driving cavity is arranged in the device body, a motor is fixedly arranged on the rear end wall of the driving cavity, the front end of the motor is in power connection with a driving shaft, a friction wheel is fixedly arranged at one end, close to a turbine shaft, of the driving shaft, the two friction wheels are in friction connection, the turbine shaft penetrating through the front end wall of the driving cavity is rotatably arranged on the front end wall of the driving cavity, and centrifugal wheels are fixedly arranged on the turbine shaft and the driving shaft.
Description
Technical Field
The invention relates to the technical field related to water pressure detection, in particular to a water pressure detection device for the sealing performance of a faucet.
Background
Tap water systems have been around the lives of thousands of households over the years, and the tightness of the tap water system, which is the last ring, is important.
The water pressure detection is used as the tightness detection, the accuracy of the water pressure detection is second to that of the air pressure detection, but the water pressure detection medium is easy to obtain, and the effect is convenient to observe.
Disclosure of Invention
The invention aims to provide a water pressure detection device for the sealing performance of a faucet, which realizes automatic detection of the sealing performance of the faucet, is easy to observe and reduces the cost.
The invention is realized by the following technical scheme.
The invention relates to a water pressure detection device for the sealing performance of a faucet, which comprises a device body, wherein a driving cavity is arranged in the device body, a motor is fixedly arranged on the rear end wall of the driving cavity, the front end of the motor is in power connection with a driving shaft, a friction wheel is fixedly arranged at one end, close to the turbine shaft, of the driving shaft, the two friction wheels are in friction connection, the front end wall of the driving cavity is rotatably provided with the turbine shaft penetrating through the front end wall of the driving cavity, the turbine shaft and the driving shaft are respectively and fixedly provided with a centrifugal wheel, the outer surface of the centrifugal wheel is provided with a centrifugal sliding cavity with an opening far away from the driving shaft, a centrifugal sliding block is slidably arranged in the centrifugal sliding cavity, a centrifugal spring is fixedly arranged between the centrifugal sliding cavity and the end wall of one side, close to the driving shaft, of the centrifugal, the pressing plate is positioned on the centrifugal wheel, the upper end of the pressing plate at the rear side is fixedly connected with a first pull rope, the upper end of the pressing plate at the front side is fixedly connected with a second pull rope, the device body is internally provided with a water storage cavity at the left side, a water pipe communicated with the water storage cavity and the outside is arranged in the device body, a turbine rotating cavity communicated with the water through pipe is arranged in the top wall of the water through pipe, the front end of the turbine shaft extends into the turbine rotating cavity, a turbine positioned in the turbine rotating cavity is fixedly arranged on the turbine shaft, a turbine plate is fixedly arranged on the turbine, the lower end of the turbine plate extends into the water through pipe, a stop block sliding cavity penetrating through the water through pipe is arranged in the side wall of the water through pipe, the stop block is arranged in the stop block sliding cavity in a sliding mode, the upper end of the stop block is fixedly connected with the second pull rope, and the lower end of the stop block is fixedly connected with the first pull rope.
Preferably, a detection cavity is arranged in the bottom wall of the water service pipe, a first communicating cavity communicated with the water service pipe and the detection cavity is arranged in the top wall of the detection cavity, a drainage pipe is fixedly arranged in the first communicating cavity, a sealing block fixedly connected with the bottom wall of the water service pipe is fixedly arranged at the upper end of the drainage pipe, a first drainage cavity communicated with the drainage pipe is arranged in the drainage pipe, an air bag is fixedly arranged at the bottom of the drainage pipe, a rack is arranged in the bottom wall of the detection cavity in a sliding manner, a bearing plate is fixedly arranged at the upper end of the rack, a faucet is arranged on the upper end surface of the bearing plate, a faucet cavity is arranged in the faucet, a second spring is fixedly arranged between the lower end surface of the bearing plate and the bottom wall of the detection cavity, a rotating cavity is arranged in the right end wall of the detection cavity, the air bag is communicated with the second communicating cavity through a vent pipe.
Preferably, a first fixed block is fixedly arranged in the rotating cavity, an inflating cavity with a downward opening is arranged on the lower end face of the first fixed block, two inflating guide rods are fixedly arranged on the top wall of the inflating cavity, an inflating slide plate is slidably arranged on the inflating guide rods, an inflating spring is fixedly arranged between the inflating slide plate and the top wall of the inflating cavity, an air inlet communicated with the inflating cavity and the rotating cavity is arranged in the top wall of the inflating cavity, a second fixed block is fixedly arranged in the air inlet, a guide rod is slidably arranged in the second fixed block, a first block is fixedly arranged at the upper end of the guide rod, an air inlet spring is fixedly arranged between the first block and the second fixed block, the lower end face of the first block is abutted against the upper end face of the first fixed block, a floating block is fixedly arranged on the bottom wall of the rotating cavity, a floating cavity is arranged in the floating block, and a floating plate is slidably arranged, the kickboard with it is fixed to be equipped with the kickboard spring to float between the chamber diapire, the fixed ejector pin that is equipped with in kickboard upper end, be equipped with in the first fixed block and link up the return-air chamber of first fixed block, the ejector pin upper end is passed the return-air chamber upwards stretches out, the fixed second sprue that is equipped with in ejector pin upper end, under the second sprue terminal surface with first fixed block up end butt, it link up to be equipped with in the chamber left end wall floats the drainage mouth of chamber left end wall, be equipped with the intercommunication in the detection chamber left end wall detect the chamber with the second drainage chamber of drainage mouth.
Preferably, a transmission cavity is arranged in the bottom wall of the detection cavity, a gear shaft is rotatably arranged between the front end wall and the rear end wall of the transmission cavity, a gear is fixedly arranged on the gear shaft, the lower end of the rack extends into the transmission cavity to be meshed with the gear, a first belt pulley is fixedly arranged on the gear shaft, a belt pulley shaft is rotatably arranged between the front end wall and the rear end wall of the transmission cavity, a second belt pulley is fixedly arranged on the belt pulley shaft, the second belt pulley is in transmission connection with the first belt pulley through a first belt, a third belt pulley is fixedly arranged on the belt pulley shaft, a cam shaft is rotatably arranged between the front end wall and the rear end wall of the rotating cavity, the pneumatic sliding plate is characterized in that a fourth belt pulley is fixedly arranged on the cam shaft, the fourth belt pulley is in transmission connection with the third belt pulley through a second belt, a cam is fixedly arranged on the cam shaft, and the cam is abutted to the pneumatic sliding plate.
The invention has the beneficial effects that: the invention has simple structure and simple operation, can realize automatic blockage, irrigation and tightness detection of the water faucet through a series of mechanical actions only by putting the water faucet to be detected into the device and starting the motor, simulates the use condition of a normal water faucet, and has low detection cost and simple observation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a water pressure detecting device for water faucet sealing performance according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view, partially in section, taken along the line B-B of FIG. 1, illustrating the present invention;
FIG. 4 is an enlarged schematic view of the invention at C of FIG. 2;
fig. 5 is an enlarged schematic view of the invention at D in fig. 1.
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The water pressure detection device for the water faucet tightness described in conjunction with fig. 1-5 includes a device body 10, a driving cavity 54 is provided in the device body 10, a motor 51 is fixedly provided on a rear end wall of the driving cavity 54, a driving shaft 52 is dynamically connected to a front end of the motor 51, a friction wheel 60 is fixedly provided on one end of the driving shaft 52 close to the turbine shaft 59, the two friction wheels 60 are in friction connection, the turbine shaft 59 penetrating through a front end wall of the driving cavity 54 is rotatably provided on the front end wall of the driving cavity 54, a centrifugal wheel 53 is fixedly provided on both the turbine shaft 59 and the driving shaft 52, a centrifugal sliding cavity 72 having an opening far away from the driving shaft 52 is provided on an outer surface of the centrifugal wheel 53, a centrifugal slider 71 is slidably provided in the centrifugal sliding cavity 72, a centrifugal spring 73 is fixedly provided between the centrifugal slider 71 and an end wall of the centrifugal sliding cavity 72, a first spring 55 is fixedly arranged on the top wall of the driving cavity 54, a pressing plate 56 is fixedly arranged at the lower end of the first spring 55, the pressing plate 56 is positioned on the centrifugal wheel 53, a first pull rope 15 is fixedly connected at the upper end of the pressing plate 56 at the rear side, a second pull rope 12 is fixedly connected at the upper end of the pressing plate 56 at the front side, a water storage cavity 41 at the left side is arranged in the device body 10, a water service pipe 14 which is communicated with the water storage cavity 41 and the outside is arranged in the device body 10, a turbine rotating cavity 39 which is communicated with the water service pipe 14 is arranged in the top wall of the water service pipe 14, the front end of a turbine shaft 59 extends into the turbine rotating cavity 39, a turbine 40 which is positioned in the turbine rotating cavity 39 is fixedly arranged on the turbine shaft 59, a turbine plate 38 is fixedly arranged on the turbine 40, the lower end of the turbine plate 38 extends into the water service pipe 14, and a stopper sliding, a stop block 13 is arranged in the stop block sliding cavity 11 in a sliding mode, the upper end of the stop block 13 is fixedly connected with the second pull rope 12, and the lower end of the stop block 13 is fixedly connected with the first pull rope 15.
Beneficially, be equipped with in the diapire of water service pipe 14 and detect chamber 25, be equipped with in the detection chamber 25 roof and communicate the water service pipe 14 with detect the first intercommunication chamber 16 in chamber 25, first intercommunication chamber 16 internal fixation is equipped with drainage tube 17, drainage tube 17 upper end fixed be equipped with sealed piece 36 of water service pipe 14 diapire fixed connection, be equipped with in the drainage tube 17 and link up the first drainage chamber 37 of drainage tube 17, drainage tube 17 bottom fixed is equipped with gasbag 18, it is equipped with rack 22 to slide in the chamber 25 diapire, rack 22 upper end fixed is equipped with loading board 21, tap 20 has been placed to loading board 21 up end, be equipped with tap chamber 19 in tap 20, loading board 21 down end with it is equipped with second spring 23 to fix between the chamber 25 diapire to detect, be equipped with in the chamber 25 right-hand member wall and rotate chamber 34, be equipped with in the chamber 25 right-hand member wall and communicate detect chamber 25 with the second intercommunication chamber that rotates chamber 34 26, the air bag 18 communicates with the second communicating chamber 26 through a vent pipe 24.
Beneficially, a first fixed block 45 is fixedly arranged in the rotating cavity 34, an inflating cavity 46 with a downward opening is arranged on the lower end face of the first fixed block 45, two inflating guide rods 47 are fixedly arranged on the top wall of the inflating cavity 46, an inflating sliding plate 33 is slidably arranged on the inflating guide rods 47, an inflating spring 48 is fixedly arranged between the inflating sliding plate 33 and the top wall of the inflating cavity 46, an air inlet 76 communicated with the inflating cavity 46 and the rotating cavity 34 is arranged in the top wall of the inflating cavity 46, a second fixed block 78 is fixedly arranged in the air inlet 76, a guide rod 74 is slidably arranged in the second fixed block 78, a first blocking block 75 is fixedly arranged at the upper end of the guide rod 74, an air inlet spring 77 is fixedly arranged between the first blocking block 75 and the second fixed block 78, the lower end face of the first blocking block 75 is abutted to the upper end face of the first fixed block 45, and a floating block 32 is fixedly arranged on the bottom wall of the rotating cavity, the detection device is characterized in that a floating cavity 31 is arranged in the floating block 32, a floating plate 29 is arranged in the floating cavity 31 in a sliding mode, a floating plate spring 30 is fixedly arranged between the floating plate 29 and the bottom wall of the floating cavity 31, an ejector rod 43 is fixedly arranged at the upper end of the floating plate 29, an air return cavity 44 penetrating through the first fixing block 45 is arranged in the first fixing block 45, the upper end of the ejector rod 43 penetrates through the air return cavity 44 to extend upwards, a second block 42 is fixedly arranged at the upper end of the ejector rod 43, the lower end face of the second block 42 is abutted to the upper end face of the first fixing block 45, a drainage port 28 penetrating through the left end wall of the floating cavity 31 is arranged in the left end wall of the floating cavity 31, and a second drainage cavity 27 communicating the detection cavity 25 with the drainage port 28 is arranged in the.
Beneficially, a transmission cavity 57 is arranged in the bottom wall of the detection cavity 25, a gear shaft 64 is rotatably arranged between the front end wall and the rear end wall of the transmission cavity 57, a gear 63 is fixedly arranged on the gear shaft 64, the lower end of the rack 22 extends into the transmission cavity 57 to be meshed with the gear 63, a first belt pulley 68 is fixedly arranged on the gear shaft 64, a belt pulley shaft 66 is rotatably arranged between the front end wall and the rear end wall of the transmission cavity 57, a second belt pulley 70 is fixedly arranged on the belt pulley shaft 66, the second belt pulley 70 is in transmission connection with the first belt pulley 68 through a first belt 69, a third belt pulley 67 is fixedly arranged on the belt pulley shaft 66, a cam shaft 50 is rotatably arranged between the front end wall and the rear end wall of the rotation cavity 34, a fourth belt pulley 49 is fixedly arranged on the cam shaft 50, and the fourth belt pulley 49 is in transmission connection with the third belt, the cam shaft 50 is fixedly provided with a cam 35, and the cam 35 is abutted against the inflation sliding plate 33.
Placing the water tap 20 on the bearing plate 21, plugging the air bag 18 into the water tap cavity 19, pressing the bearing plate 21 downwards by the water tap 20 to drive the rack 22 to move downwards, thereby driving the gear 63 to rotate, thereby driving the first belt pulley 68 to rotate through the gear shaft 64, thereby driving the second belt pulley 70 to rotate through the first belt 69, thereby driving the third belt pulley 67 to rotate through the belt pulley shaft 66, thereby driving the fourth belt pulley 49 to rotate through the second belt 65, thereby driving the cam 35 to rotate through the cam shaft 50, thereby driving the inflation sliding plate 33 to move upwards and downwards, thereby pressing the air in the inflation cavity 46 into the air bag 18 and sealing the water tap cavity 19; when the water tap 20 is not leaking water, the pressure in the water tap cavity 19 increases, the turbine 40 cannot rotate, the turbine shaft 59 cannot rotate, the second pull rope 12 is pulled tight, water is discharged from the water pipe 14, when the water tap 20 is leaking water, the water in the water tap cavity 19 leaks out and enters the floating cavity 31, the floating plate 29 is jacked up, the jacking rod 43 is driven to move upwards, the air return cavity 44 is communicated, air in the air bag 18 is discharged, and the motor 51 stops.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a water pressure detection device of tap leakproofness, includes the device body, its characterized in that: a driving cavity is arranged in the device body, a motor is fixedly arranged on the rear end wall of the driving cavity, the front end of the motor is in power connection with a driving shaft, friction wheels are fixedly arranged at one end, close to the turbine shaft, of the driving shaft, the two friction wheels are in friction connection, the turbine shaft penetrating through the front end wall of the driving cavity is rotationally arranged on the front end wall of the driving cavity, centrifugal wheels are fixedly arranged on the turbine shaft and the driving shaft, a centrifugal sliding cavity with an opening far away from the driving shaft is arranged on the outer surface of each centrifugal wheel, a centrifugal slider is slidably arranged in the centrifugal sliding cavity, a centrifugal spring is fixedly arranged between the centrifugal slider and the end wall, close to one side of the driving shaft, of the centrifugal sliding cavity, a first spring is fixedly arranged on the top wall of the driving cavity, a pressing plate is fixedly arranged at the lower end of the first spring, the front side clamp plate upper end fixedly connected with second stay cord, the internal left retaining chamber that is equipped with of device, the internal intercommunication that is equipped with of device retaining chamber and outside water service pipe, be equipped with the intercommunication in the water service pipe roof the turbine of water service pipe rotates the chamber, the turbine shaft front end stretches into the turbine rotates the intracavity, the fixed turbine that is located on the turbine shaft the intracavity is rotated to the turbine, the fixed turbine board that is equipped with on the turbine, the turbine board lower extreme stretches into in the water service pipe, be equipped with in the water service pipe lateral wall and link up the dog sliding chamber of water service pipe, the slip of dog sliding intracavity is equipped with the dog, the dog upper end with second stay cord fixed connection, the dog lower extreme with first stay cord fixed connection.
2. The water pressure detecting device for the sealing performance of the water faucet as recited in claim 1, wherein: a detection cavity is arranged in the bottom wall of the water service pipe, a first communication cavity for communicating the water service pipe with the detection cavity is arranged in the top wall of the detection cavity, a drainage tube is fixedly arranged in the first communicating cavity, a sealing block fixedly connected with the bottom wall of the water through tube is fixedly arranged at the upper end of the drainage tube, a first drainage cavity which is communicated with the drainage tube is arranged in the drainage tube, an air bag is fixedly arranged at the bottom of the drainage tube, a rack is arranged in the bottom wall of the detection cavity in a sliding manner, a bearing plate is fixedly arranged at the upper end of the rack, a water faucet is arranged on the upper end surface of the bearing plate, a water tap cavity is arranged in the water tap, a second spring is fixedly arranged between the lower end surface of the bearing plate and the bottom wall of the detection cavity, the detection device is characterized in that a rotating cavity is arranged in the right end wall of the detection cavity, a second communicating cavity which is communicated with the detection cavity and the rotating cavity is arranged in the right end wall of the detection cavity, and the air bag is communicated with the second communicating cavity through a vent pipe.
3. The water pressure detecting device for the sealing performance of the water faucet as recited in claim 2, wherein: a first fixed block is fixedly arranged in the rotating cavity, an inflation cavity with a downward opening is arranged on the lower end face of the first fixed block, two inflation guide rods are fixedly arranged on the top wall of the inflation cavity, an inflation slide plate is slidably arranged on the inflation guide rods, an inflation spring is fixedly arranged between the inflation slide plate and the top wall of the inflation cavity, an air inlet communicated with the inflation cavity and the rotating cavity is arranged in the top wall of the inflation cavity, a second fixed block is fixedly arranged in the air inlet, a guide rod is slidably arranged in the second fixed block, a first blocking block is fixedly arranged at the upper end of the guide rod, an air inlet spring is fixedly arranged between the first blocking block and the second fixed block, the lower end face of the first blocking block is abutted against the upper end face of the first fixed block, a floating block is fixedly arranged on the bottom wall of the rotating cavity, a floating cavity is arranged in the floating block, and a floating, the kickboard with it is fixed to be equipped with the kickboard spring to float between the chamber diapire, the fixed ejector pin that is equipped with in kickboard upper end, be equipped with in the first fixed block and link up the return-air chamber of first fixed block, the ejector pin upper end is passed the return-air chamber upwards stretches out, the fixed second sprue that is equipped with in ejector pin upper end, under the second sprue terminal surface with first fixed block up end butt, it link up to be equipped with in the chamber left end wall floats the drainage mouth of chamber left end wall, be equipped with the intercommunication in the detection chamber left end wall detect the chamber with the second drainage chamber of drainage mouth.
4. The water pressure detecting device for the sealing performance of the water faucet as recited in claim 2, wherein: a transmission cavity is arranged in the bottom wall of the detection cavity, a gear shaft is rotatably arranged between the front end wall and the rear end wall of the transmission cavity, a gear is fixedly arranged on the gear shaft, the lower end of the rack extends into the transmission cavity to be meshed with the gear, a first belt pulley is fixedly arranged on the gear shaft, a belt pulley shaft is rotatably arranged between the front end wall and the rear end wall of the transmission cavity, a second belt pulley is fixedly arranged on the belt pulley shaft, the second belt pulley is in transmission connection with the first belt pulley through a first belt, a third belt pulley is fixedly arranged on the belt pulley shaft, a cam shaft is rotatably arranged between the front end wall and the rear end wall of the rotating cavity, the pneumatic sliding plate is characterized in that a fourth belt pulley is fixedly arranged on the cam shaft, the fourth belt pulley is in transmission connection with the third belt pulley through a second belt, a cam is fixedly arranged on the cam shaft, and the cam is abutted to the pneumatic sliding plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887592.9A CN111795779A (en) | 2020-08-28 | 2020-08-28 | Water pressure detection device for water tap sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887592.9A CN111795779A (en) | 2020-08-28 | 2020-08-28 | Water pressure detection device for water tap sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795779A true CN111795779A (en) | 2020-10-20 |
Family
ID=72834468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010887592.9A Withdrawn CN111795779A (en) | 2020-08-28 | 2020-08-28 | Water pressure detection device for water tap sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111795779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394691A (en) * | 2020-11-04 | 2021-02-23 | 魏起鹏 | Automatic generate current device of nitrogenous fertilizer based on wisdom agricultural |
-
2020
- 2020-08-28 CN CN202010887592.9A patent/CN111795779A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394691A (en) * | 2020-11-04 | 2021-02-23 | 魏起鹏 | Automatic generate current device of nitrogenous fertilizer based on wisdom agricultural |
| CN112394691B (en) * | 2020-11-04 | 2022-09-13 | 菁农(江苏)信息技术有限公司 | Automatic generate current device of nitrogenous fertilizer based on wisdom agricultural |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201020 |