CN113634380A - Prevent rotation irrigation spray head of jam - Google Patents
Prevent rotation irrigation spray head of jam Download PDFInfo
- Publication number
- CN113634380A CN113634380A CN202110911097.1A CN202110911097A CN113634380A CN 113634380 A CN113634380 A CN 113634380A CN 202110911097 A CN202110911097 A CN 202110911097A CN 113634380 A CN113634380 A CN 113634380A
- Authority
- CN
- China
- Prior art keywords
- water
- spray head
- fixedly connected
- air
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/023—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements comprising a pneumatic motor actuated by a depression created by the liquid flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
- B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
- B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
- B05B3/0472—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements the spray jet actuating a movable deflector which is successively moved out of the jet by jet action and brought back into the jet by spring action
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- Nozzles (AREA)
Abstract
The invention relates to the technical field of sprinkling irrigation, and discloses an anti-clogging rotary irrigation spray head which comprises a water guide pipe, a spray head, a spring and an air cavity, wherein a ball bearing is placed in the joint of the lower sides of the water guide pipe and the spray head, the top end of the water guide pipe is fixedly connected with a fixing plate, and the side surface of the fixing plate is movably connected with the inner wall of the spray head. According to the invention, by designing the spring, the air cylinder, the air cavity, the pressure spring, the baffle and the baffle, water is pumped into the water guide pipe through mechanical power, water flow acts on the push plate, the push plate is pushed to move upwards through the water flow to extrude the air cylinder by the push plate and press air in the air cylinder into the air cavity through the air channel, so that the pressure of the air is increased, meanwhile, the baffle is pushed to move upwards through the push plate to open the air cavity by the baffle so as to release the extruded air at the water outlet, so that the water flow pressure at the water outlet is increased, and the water flow with increased pressure impacts the spray pipe, so that large particles of fertilizer which are not melted in the water flow are prevented from blocking the spray pipe, and the sprinkling efficiency is reduced.
Description
Technical Field
The invention relates to the technical field of sprinkling irrigation, in particular to an anti-blocking rotary irrigation spray head.
Background
The sprinkling irrigation is an irrigation method which utilizes machinery and power equipment to spray water into the air through a spray head or a nozzle so that the water falls into the field in a raindrop state.
Both can practice thrift labour cost when fertilizeing to the crop through the sprinkling irrigation, can improve the utilization ratio of fertilizer again, nevertheless can cause the jam to the sprinkling irrigation head at some undissolved fertilizer large granules of sprinkling irrigation in-process, lead to the sprinkling irrigation efficiency of sprinkling irrigation head to reduce, simultaneously because the sprinkling irrigation head is with spraying the state and spray, lead to near the crop of sprinkling irrigation head can only receive a small amount of irrigation when the sprinkling irrigation head starts and closes, cause the cover face of sprinkling irrigation incomplete, influence the growth and the development of crop.
Disclosure of Invention
Aiming at the defects of the existing irrigation spray head in the use process in the background technology, the invention provides the anti-blocking rotary irrigation spray head which has the advantages that the spray head can be prevented from being blocked through the extrusion of gas, crops near the spray head can be sprayed, and the technical problems in the background technology are solved.
The invention provides the following technical scheme: a rotary irrigation spray head capable of preventing blockage comprises a water guide pipe, a spray head, a spring and an air cavity, wherein a ball is placed in the joint of the lower sides of the water guide pipe and the spray head, a fixing plate is fixedly connected to the top end of the water guide pipe, the side face of the fixing plate is movably connected with the inner wall of the spray head, a through hole is formed in the middle of the fixing plate, a water through pipe is fixedly arranged inside the fixing plate, a water through groove is formed in the joint of the fixing plate and the spray head, an extrusion plate is fixedly connected inside the water through groove, an air bag is fixedly connected to the rear side of the extrusion plate inside the water through groove, a water spray groove is formed in the side wall of the spray head, an air vent groove is formed in the side wall of the top end of the spray head, an air cylinder is fixedly connected to the middle of the top face of an inner cavity of the spray head, a piston is movably connected inside the air cylinder, and a push rod is fixedly connected to the middle of the lower side face of the piston, the upper side wall of the water outlet hole is fixedly connected with a pressure spring, the bottom end of the pressure spring is fixedly connected with a baffle, the upper side face of the baffle is located on the inner side of the pressure spring and is fixedly connected with a connecting rod, and the connecting rod is located inside the air cavity and is fixedly connected with a stop block.
Preferably, the top end of the spring is fixedly connected with a push plate, the side face of the push plate is in movable contact with the inner side wall of the spray head, and the upper side face of the push plate is fixedly connected with the push rod.
Preferably, the side wall of the spray head is positioned on the upper side of the spray pipe and is provided with an air cavity, and the vent groove is communicated with the air cavity.
Preferably, when the air bag is extruded by the extrusion plate, water flow enters the water spraying groove, and the water spraying groove is communicated with the air bag.
Preferably, the water pipe is designed into an arc-shaped water pipe, and one end of the water pipe extending into the through hole is provided with a downward opening.
The invention has the following beneficial effects:
1. according to the invention, by designing the spring, the air cylinder, the air cavity, the pressure spring, the baffle and the baffle, water is pumped into the water guide pipe through mechanical power, water flow acts on the push plate, the push plate is pushed to move upwards through the water flow to extrude the air cylinder by the push plate and press air in the air cylinder into the air cavity through the air channel, so that the pressure of the air is increased, meanwhile, the baffle is pushed to move upwards through the push plate to open the air cavity by the baffle so as to release the extruded air at the water outlet, so that the water flow pressure at the water outlet is increased, and the water flow with increased pressure impacts the spray pipe, so that large particles of fertilizer which are not melted in the water flow are prevented from blocking the spray pipe, and the sprinkling efficiency is reduced.
2. According to the invention, by designing the ball, the fixed plate, the water through groove, the extrusion plate, the air bag and the water spraying groove, when water flows through the through hole, part of water flows through the water through pipe and enters the water through groove, the spray head rotates outside the water guide pipe under the action of the ball, when the extrusion plate extrudes the air bag, the water flows enter the water spraying groove and are communicated through the air bag, so that air pressure in the air bag is extruded into the water spraying groove, finally, the water flow in the water spraying groove is sprayed out through the air in the air bag and the self-impact force of the water flow, and only a small part of the water flow enters the water through pipe and the water spraying groove, so that the impact force of the water flow in the water spraying groove is smaller, the distance of the water flow sprayed out from the water spraying groove is closer, the spray irrigation on crops near the spray head is realized, and the spray irrigation is more uniform.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the sprinkling irrigation state of the present invention;
FIG. 3 is a schematic view of a water trough structure at the connection between the spray head and the fixing plate according to the present invention;
FIG. 4 is a schematic structural view of the fixed plate and the nozzle at the joint in a non-rotated state according to the present invention;
FIG. 5 is a schematic view of a rotating structure of the joint between the fixing plate and the nozzle of the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: 1. a water conduit; 11. a ball bearing; 12. a fixing plate; 13. a through hole; 14. a water pipe; 2. a spray head; 21. a water trough; 22. a pressing plate; 23. an air bag; 24. a water spraying groove; 25. a vent channel; 26. an air cylinder; 27. a piston; 28. a push rod; 29. a water outlet hole; 291. a pressure spring; 292. a baffle plate; 293. a connecting rod; 294. a stopper; 3. a nozzle; 4. a spring; 41. pushing the plate; 5. an air cavity.
Detailed Description
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.
Referring to fig. 1-6, an anti-clogging rotary irrigation nozzle comprises a water guide pipe 1, a nozzle 2 is movably sleeved on the upper portion of the water guide pipe 1, a ball 11 is placed in the joint of the lower sides of the water guide pipe 1 and the nozzle 2, a fixing plate 12 is fixedly connected to the top end of the water guide pipe 1, the side surface of the fixing plate 12 is movably connected to the inner wall of the nozzle 2, a through hole 13 is formed in the middle of the fixing plate 12, a water through pipe 14 is fixedly arranged inside the fixing plate 12, the water through pipe 14 is designed to be an arc-shaped water pipe, one end of the water through pipe 14 extending into the through hole 13 is arranged to be opened downwards, one end of the water through pipe 14 extends into the through hole 13, a water through groove 21 is formed at the joint of the fixing plate 12 and the nozzle 2, it is ensured that part of water flow can enter the water through pipe 14 into the water through groove 21 when the water flow passes through hole 13, a squeezing plate 22 is fixedly connected to the inside of the water through groove 21, an air bag 23 is fixedly connected to the rear side of the squeezing plate 22, the side wall of the spray head 2 is provided with a water spraying groove 24, when the extrusion plate 22 extrudes the air bag 23, water enters the water spraying groove 24, the water spraying groove 24 is communicated with the air bag 23, the water in the water spraying groove 24 can be sprayed out by the self impact force and the air in the air bag 23, the air bag 23 is communicated with the water spraying groove 24, the side wall at the top end of the spray head 2 is provided with a vent groove 25, the middle part of the top surface of the inner cavity of the spray head 2 is fixedly connected with an air cylinder 26, the inner part of the air cylinder 26 is movably connected with a piston 27, the middle part of the lower side surface of the piston 27 is fixedly connected with a push rod 28, the upper part of the outer side surface of the spray head 2 is fixedly connected with a spray pipe 3, the upper side surface of the fixed plate 12 is positioned at the outer side of the through hole 13 and is fixedly connected with a spring 4, the top end of the spring 4 is fixedly connected with a push plate 41, the side surface of the push plate 41 is movably contacted with the inner side wall of the spray head 2, the upper side surface of the push plate 41 is fixedly connected with the push rod 28, so that the piston 27 can be pushed by the push plate 41 when the water acts on the push plate 41, air cavity 5 has been seted up to the lateral wall of shower nozzle 2 is located the upside of spray tube 3, air channel 25 and air cavity 5 intercommunication, make the inside gas of inflator 26 get into in the air cavity 5 when receiving piston 27 extrusion, the last lateral wall fixedly connected with pressure spring 291 of apopore 29, the bottom fixedly connected with baffle 292 of pressure spring 291, the inboard fixedly connected with connecting rod 293 that the side was located pressure spring 291 on the baffle 292, connecting rod 293 is located the inside fixedly connected with dog 294 of air cavity 5, guaranteed that baffle 292 receives the effect of push pedal 41 back accessible pressure spring 291 and connecting rod 293 to make the dog 294 shift up and open air cavity 5 and make the compressed gas release in the air cavity 5 in apopore 29 department, increase the pressure of apopore 29 department rivers.
When water flows through the water guide pipe 1, a small part of water flows through the through hole 13 and enters the water through pipe 14 into the water through groove 21, and drives the nozzle 2 to rotate around the water guide pipe 1 through the ball 11, and simultaneously, the air in the air bag 23 enters the water spraying groove 24 through the extrusion of the extrusion plate 22 to the air bag 23, at this time, the water flows enter the water spraying groove 24 due to the movement of the extrusion plate 22, and simultaneously, the water flows in the water spraying groove 24 are sprayed out through the water pressure of the water flows and the air extruded in the air bag 23, because the water pressure of the water flows is small and the length of the water spraying groove 24 is long, the impact force of the sprayed water flows is small, the sprinkling irrigation on crops near the nozzle 2 is realized, meanwhile, most of the water flows enter the nozzle 2 through the through hole 13 and act on the push plate 41, so that the push plate 41 moves upwards and drives the push rod 28 and the piston 27 to squeeze the air in the air cylinder 26 into the air cavity 5, at this time, because the action of the push plate 41 on the baffle 292 makes the connecting rod 293 push the stopper 294 to move upwards to open the air cavity 5, compressed gas in the air cavity 5 is released at the water outlet hole 29, the pressure of water flow at the water outlet hole 29 is increased, the water flow impacts the water outlet hole 29 and the spray pipe 3, large fertilizer particles which are not dissolved in the water flow are prevented from being blocked at the spray pipe 3, and the sprinkling irrigation efficiency is reduced.
The use method (working principle) of the invention is as follows:
firstly, the water in the water guide pipe 1 is led to pass through by mechanical power, the water flows into the water passing groove 21 after entering the water passing pipe 14 through the through hole 13, the spray head 2 rotates on the water guide pipe 1 through the action of the ball 11 by the action of the water flow on the extrusion plate 22, the air bag 23 is extruded by the extrusion plate 22, the air in the air bag 23 is extruded into the water spraying groove 24, meanwhile, the water flows into the water spraying groove 24 through the action of the extrusion plate 22, the water flows are sprayed out through the air in the air bag 23 and the water pressure of the water flow, so as to achieve the sprinkling irrigation on crops near the spray head 2, meanwhile, most of the water flows enter the spray head 2 through the through hole 13 and act on the push plate 41, the push plate 41 moves upwards and pushes the baffle 292, meanwhile, the push rod 28 pushes the piston 27 to extrude the air in the air cylinder 26 into the air cavity 5 through the air channel 25 by the movement of the push plate 41, the baffle 294 moves upwards and opens the baffle 5, compressed gas in the air cavity 5 is released at the water outlet hole 29, so that the water flow pressure of the water outlet hole 29 and the water flow pressure of the spraying pipe 3 are increased, the water flow pressure of the spraying pipe 3 is impacted, large particles of fertilizer in water flow are prevented from blocking the spraying pipe 3, and the sprinkling irrigation efficiency and the growth and development of crops are influenced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (5)
1. The utility model provides a prevent rotation irrigation spray nozzle of jam, includes aqueduct (1), shower nozzle (2), spring (4) and air cavity (5), its characterized in that: a ball (11) is placed in a joint of the lower sides of the water guide pipe (1) and the spray head (2), a fixing plate (12) is fixedly connected to the top end of the water guide pipe (1), the side face of the fixing plate (12) is movably connected with the inner wall of the spray head (2), a through hole (13) is formed in the middle of the fixing plate (12), a water through pipe (14) is fixedly arranged inside the fixing plate (12), a water through groove (21) is formed at the joint of the fixing plate (12) and the spray head (2), an extrusion plate (22) is fixedly connected inside the water through groove (21), an air bag (23) is fixedly connected to the rear side of the extrusion plate (22) inside the water through groove (21), a water spraying groove (24) is formed in the side wall of the spray head (2), an air vent groove (25) is formed in the side wall of the top end of the spray head (2), and an air cylinder (26) is fixedly connected to the middle of the top surface of an inner cavity of the spray head (2), the inside swing joint of inflator (26) has piston (27), middle part fixedly connected with push rod (28) of piston (27) downside, the last side wall fixedly connected with pressure spring (291) of apopore (29), the bottom fixedly connected with baffle (292) of pressure spring (291), the inboard fixedly connected with connecting rod (293) that the side was located pressure spring (291) on the side of going up of baffle (292), connecting rod (293) are located inside fixedly connected with dog (294) of air cavity (5).
2. The anti-clogging rotary irrigation sprinkler according to claim 1, further comprising: the top end of the spring (4) is fixedly connected with a push plate (41), the side face of the push plate (41) is in movable contact with the inner side wall of the spray head (2), and the upper side face of the push plate (41) is fixedly connected with the push rod (28).
3. The anti-clogging rotary irrigation sprinkler according to claim 1, further comprising: the side wall of the spray head (2) is positioned on the upper side of the spray pipe (3) and is provided with an air cavity (5), and the vent groove (25) is communicated with the air cavity (5).
4. The anti-clogging rotary irrigation sprinkler according to claim 1, further comprising: when the air bag (23) is extruded by the extrusion plate (22), water flows into the water spraying groove (24), and the water spraying groove (24) is communicated with the air bag (23).
5. The anti-clogging rotary irrigation sprinkler according to claim 1, further comprising: the water through pipe (14) is designed to be an arc-shaped water pipe, and one end, extending into the through hole (13), of the water through pipe (14) is arranged to be downward in opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911097.1A CN113634380A (en) | 2021-08-10 | 2021-08-10 | Prevent rotation irrigation spray head of jam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911097.1A CN113634380A (en) | 2021-08-10 | 2021-08-10 | Prevent rotation irrigation spray head of jam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113634380A true CN113634380A (en) | 2021-11-12 |
Family
ID=78420294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110911097.1A Withdrawn CN113634380A (en) | 2021-08-10 | 2021-08-10 | Prevent rotation irrigation spray head of jam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113634380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893486A (en) * | 2021-11-23 | 2022-01-07 | 王海祥 | Fire-fighting auxiliary equipment capable of protecting human body |
| CN115124103A (en) * | 2022-05-07 | 2022-09-30 | 北京中矿博能节能科技有限公司 | Crystal separation elution system and use method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005092413A1 (en) * | 2004-03-26 | 2005-10-06 | Bespak Plc | Dispenser |
| CN204448338U (en) * | 2014-12-20 | 2015-07-08 | 孙力 | A kind of reciprocating drip irrigation emitter preventing blocking |
| CN206064661U (en) * | 2016-08-29 | 2017-04-05 | 江苏国农泵业有限公司 | A kind of rotating spraying header structure of sprinkler pipe network |
| KR20180107919A (en) * | 2017-03-23 | 2018-10-04 | 경 곤 김 | Paint spray device |
| CN211745901U (en) * | 2019-11-06 | 2020-10-27 | 徐州市铜山区汉王镇农业服务发展有限公司 | Irrigation equipment of ecological agriculture |
| CN211832207U (en) * | 2019-12-12 | 2020-11-03 | 西藏瑞华资本管理有限公司 | Rotary irrigation spray head for agricultural irrigation |
| CN213029379U (en) * | 2020-08-20 | 2021-04-23 | 新疆惠利灌溉科技股份有限公司 | Water-saving anti-blocking sprinkling irrigation device |
| CN113083540A (en) * | 2021-04-03 | 2021-07-09 | 荆淑巧 | Farmland irrigation shower nozzle |
-
2021
- 2021-08-10 CN CN202110911097.1A patent/CN113634380A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005092413A1 (en) * | 2004-03-26 | 2005-10-06 | Bespak Plc | Dispenser |
| CN204448338U (en) * | 2014-12-20 | 2015-07-08 | 孙力 | A kind of reciprocating drip irrigation emitter preventing blocking |
| CN206064661U (en) * | 2016-08-29 | 2017-04-05 | 江苏国农泵业有限公司 | A kind of rotating spraying header structure of sprinkler pipe network |
| KR20180107919A (en) * | 2017-03-23 | 2018-10-04 | 경 곤 김 | Paint spray device |
| CN211745901U (en) * | 2019-11-06 | 2020-10-27 | 徐州市铜山区汉王镇农业服务发展有限公司 | Irrigation equipment of ecological agriculture |
| CN211832207U (en) * | 2019-12-12 | 2020-11-03 | 西藏瑞华资本管理有限公司 | Rotary irrigation spray head for agricultural irrigation |
| CN213029379U (en) * | 2020-08-20 | 2021-04-23 | 新疆惠利灌溉科技股份有限公司 | Water-saving anti-blocking sprinkling irrigation device |
| CN113083540A (en) * | 2021-04-03 | 2021-07-09 | 荆淑巧 | Farmland irrigation shower nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893486A (en) * | 2021-11-23 | 2022-01-07 | 王海祥 | Fire-fighting auxiliary equipment capable of protecting human body |
| CN113893486B (en) * | 2021-11-23 | 2022-08-09 | 王海祥 | Fire-fighting auxiliary equipment capable of protecting human body |
| CN115124103A (en) * | 2022-05-07 | 2022-09-30 | 北京中矿博能节能科技有限公司 | Crystal separation elution system and use method thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211112 |
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| WW01 | Invention patent application withdrawn after publication |