CN112012968A - Gravity supercharging hydraulic ram - Google Patents
Gravity supercharging hydraulic ram Download PDFInfo
- Publication number
- CN112012968A CN112012968A CN202010798273.0A CN202010798273A CN112012968A CN 112012968 A CN112012968 A CN 112012968A CN 202010798273 A CN202010798273 A CN 202010798273A CN 112012968 A CN112012968 A CN 112012968A
- Authority
- CN
- China
- Prior art keywords
- water
- deflection
- tank
- pressure
- valve
- 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.)
- Pending
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 238000005192 partition Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
- F04F7/02—Hydraulic rams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the technical field of hydroelectric equipment and discloses a gravity-boosted water hammer pump which comprises a valve body, a high-pressure tank, a water outlet, a water inlet and a water outlet, wherein the water inlet and the water outlet are respectively connected to two ends of the valve body, and the high-pressure tank is arranged at the upper end of the valve body. The gravity-boosted water hammer pump drives the valve of the water outlet to rotate through deflection of the deflection water tank, and in the process, water flow is utilized to accelerate unbalance, so that the valve of the water outlet is closed more instantaneously, the instantaneous pressure of the water hammer phenomenon is enhanced, higher instantaneous water pressure is obtained, the opening state of the valve is more stable, and the maximum flow rate in the water pipe is facilitated; on the other hand, the piston cylinder is driven to stretch and contract through the gravity change of the deflection water tank, instantaneous pressure generated by a water hammer phenomenon is actively absorbed and released when the piston cylinder is compressed, instantaneous resistance of high-pressure water flowing is reduced, and high-pressure absorption and utilization capacity is improved.
Description
Technical Field
The invention relates to the technical field of hydroelectric equipment, in particular to a gravity-boosted hydraulic ram pump.
Background
The hydraulic ram is a kind of power equipment which does not consume energy, can change the low water head energy into the advanced water lifting device of the high water head energy, generally speaking, can about 15 percent of the water pressure that flows in the water pipe rises to the height equivalent to 5 times of the drop height of the inlet tube, please refer to 5, its structure mainly includes the structure such as inlet tube, pump body, net weight load valve, check valve, pressure tank and outlet pipe, when the running water of the inlet tube flows through near the net weight load valve, the impact force of rivers makes the net weight load valve close, the kinetic energy is converted into the pressure energy in the tube, the check valve is washed open, the running water enters the pressure tank, wherein a part of water rises to certain height along the outlet pipe, with the pressure reduction of the inlet tube, the load valve of gravity opens, the check valve closes at the same time, this process is repeated constantly, promote the water to higher height under.
On the one hand, in the in-process of water hammer pump operation, utilize the impact force that water flows to make the dead weight load valve close, utilize water hammer phenomenon to become the kinetic energy of water pressure energy, water hammer phenomenon is related to the speed that the valve was closed, the more sudden that the valve was closed promptly, water hammer phenomenon is more obvious, the pressure energy of conversion is big more, and in the current structure, in the water hammer dead weight load valve in-process, the passageway diminishes by big, be a gradual change process, it is not rapid enough, can not be the biggest convert kinetic energy into pressure energy, secondly, after water hammer effect, it is too short to open the interval of closing again, rivers do not reply the biggest kinetic energy state, the conversion of the pressure energy of further restriction.
On the other hand, when the water hammer phenomenon takes place, during flowing water got into the overhead tank, the inside air of compression overhead tank, along with the increase of compression tank internal pressure, the resistance of intaking is big more, along with the pressure increase in the overhead tank promptly, has restricted the water yield that the single got into the overhead tank, reduces the efficiency that the single promoted.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the technical scheme of the gravity-boosted water hammer pump, which has the advantages of higher efficiency, higher utilization rate of instantaneous high pressure and the like, and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides a water hammer pump of gravity pressure boost, includes valve body, pressure-tank, delivery port, water inlet and outlet, the both ends of valve body are connected with water inlet and outlet respectively, the upper end of valve body is located to the pressure-tank, the bottom of pressure-tank lateral wall is equipped with the delivery port, the drainage side of outlet is equipped with the deflection basin that is the seesaw setting, one side of deflection basin is equipped with the pouring opening, the one side water receiving of deflection basin is poured through the pouring opening when its slope, the control valve on the drive outlet is opened or is closed when the basin rotates that deflects, the upper portion intercommunication of pressure-tank has the connecting bend, the connecting bend intercommunication has the connecting lever, the one end of deflection basin is through connecting lever and piston cylinder swing joint and drive piston cylinder flexible, and the drive piston cylinder stretches out when the valve of deflection basin drive outlet is closed.
Preferably, the control valve is a butterfly valve or a ball valve, and a control shaft of the control valve is in transmission connection with a rotating shaft of the deflection water tank through a gear.
Preferably, the diameter of the gear on the deflection water tank is larger than that of the gear on the control valve, the gear on the deflection water tank and the gear on the control valve are both half gears, when the deflection water tank is horizontal, the control valve and the gear on the deflection water tank are at the meshing initial position, and at the moment, the control valve is in an opening state.
Preferably, the deflection water tank is a cuboid, a partition plate is arranged in the middle of the deflection water tank, a weight box is arranged on one side, close to the piston cylinder, of the deflection water tank, a water receiving tank is arranged on the other side of the deflection water tank, and the length of the weight box is larger than that of the water receiving tank.
Preferably, the counterweight structure in the deflection water tank is an elastic water bag, half of water is contained in the water bag, and an additional water delivery device is arranged on the water receiving tank of the deflection water tank.
The invention has the following beneficial effects:
1. this water hammer pump of gravity pressure boost, the valve through the deflection drive outlet of deflection basin rotates to at this in-process, utilize rivers to flow with higher speed unbalance, what make the outlet valve close has the instantaneity more, reinforcing water hammer phenomenon takes place momentary pressure, obtain higher instantaneous water pressure, improve the efficiency of work, secondly, the open mode of valve is more stable, does benefit to the velocity of flow arrival maximum value in the water pipe, further improves instantaneous pressure, improves the operating pressure of water pump.
2. This water hammer pump of gravity pressure boost, it is flexible through the gravity change drive piston cylinder that deflects the basin, the initiative absorbs the water hammer phenomenon and takes place instantaneous pressure to release when the piston cylinder compression, reduce the high-pressure water and flow instantaneous resistance, improve high-pressure absorption and utilization ability, this time, the gravity that deflects the basin also converts water pressure into, and further improvement is to highly compressed utilization efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1 of the present invention;
FIG. 3 is a schematic view of the structure of the deflection water tank of the present invention during draining;
FIG. 4 is a schematic view of the driving structure of the deflection water tank of the present invention;
fig. 5 is a schematic diagram of a conventional hydraulic ram.
In the figure: 1. a valve body; 2. a high-pressure tank; 3. a water outlet; 4. a water inlet; 5. a water outlet; 6. a deflection water tank; 7. pouring a spout; 8. a control valve; 9. a piston cylinder; 10. connecting a bent pipe; 11. a lever is connected.
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, a gravity-boosted hydraulic ram includes a valve body 1, a high-pressure tank 2, a water outlet 3, a water inlet 4 and a water outlet 5, wherein both ends of the valve body 1 are respectively connected with the water inlet 4 and the water outlet 5, wherein the water inlet 4 is obliquely arranged, the high-pressure tank 2 is arranged at the upper end of the valve body 1, the high-pressure tank 2 is communicated with the valve body 1 through a one-way valve, the bottom of the side wall of the high-pressure tank 2 is provided with the water outlet 3, the water outlet 5 is provided with a water deflection tank 6 on the water discharge side, one side of the water deflection tank 6 is provided with a dumping port 7, one side of the water deflection tank 6 receives water and dumps out through the dumping port 7 when the water deflection tank 6 is tilted, the weight of both sides is unbalanced, the water deflection tank 6 deflects to one side, the water deflection tank 6 drives a control valve 8 on the water outlet 5 to open or close when, the one end of basin 6 that deflects is through connecting lever 11 and 9 swing joint of piston cylinder and drive piston cylinder 9 flexible, and drive piston cylinder 9 stretches out when the valve that 6 drive waterspout of basin 6 that deflects is closed, when piston cylinder 9 stretches out, expand the volume of high-pressure tank 2, reduce 2 internal gas pressures of high-pressure tank, when the water hammer effect takes place, the flowing water gets into in high-pressure tank 2 more easily, when piston cylinder 9 retracts, compressed gas, make the atmospheric pressure of high-pressure tank 2 increase, and then increase 3 play water pressure of delivery port, help water is promoted to higher height.
Referring to fig. 2, the control valve 8 is a butterfly valve or a ball valve, a control shaft of the control valve 8 is in transmission connection with a rotating shaft of the deflection water tank 6 through a gear, specifically, the rotating shaft in the middle of the deflection water tank 6 and the control shaft of the control valve 8 are both provided with gears, and the two groups of gears are meshed with each other, so that the deflection water tank 6 rotates when the weight is unbalanced, the rotating shaft is driven to rotate, and the control valve 8 is driven to open or close.
Wherein, the gear diameter on the basin 6 that deflects is greater than the gear on the control valve 8, and the gear ratio is greater than 1, and the less turned angle in basin 6 that deflects just can drive 8 wide-angle rotations of control valve, and the gear on the basin 6 that deflects and the gear on the control valve 8 are half-gear, and when the basin 6 level deflects, the gear on control valve 8 and the basin 6 that deflects is in the engaged initial position, and control valve 8 is in the open mode this moment, and when control valve 8 closed, the gear lost the engaged state, avoids the gear to lock each other.
Referring to fig. 3 and 4, the deflection water tank 6 is a cuboid, a partition plate is arranged in the middle of the deflection water tank 6, a rotating shaft penetrates through the partition plate, a weight box is arranged on one side, close to the piston cylinder 9, of the deflection water tank 6, a water receiving box is arranged on the other side of the deflection water tank, the length of the weight box is larger than that of the water receiving box, a weight structure moving along with an inclination angle is arranged in the weight box, and when the deflection water tank 6 deflects to one side, the weight structure moves to be unbalanced at an accelerated speed, rotates at an accelerated speed.
Wherein, the counter weight structure in the basin 6 that deflects is for having elastic water pocket, contain half water in the water pocket, when the basin 6 that deflects to a lopsidedness, rivers are to low one side, with higher speed unbalance, simultaneously when compression piston cylinder 9, the quality of the basin 6 that deflects is concentrated, play better compression effect, be equipped with extra water supply device on the water receiving tank of the basin 6 that deflects, water supply device lug connection water inlet 4's upper reaches, the process of deflecting of the basin 6 that deflects with higher speed, the interval of twice water hammer phenomenon is adjusted or reduced, and the work efficiency is improved.
The working principle and the working process of the invention are as follows:
the flowing water enters the valve body 1 from the water inlet 4 and is discharged from the water outlet 5, the deflection water tank 6 deflects along with the increase of the water amount of the deflection water tank 6, the control valve 8 is driven to rotate and close, the water hammer phenomenon occurs in the valve body 1, the pressure is increased, the check valve between the valve body 1 and the high-pressure tank 2 is flushed, the high-pressure water enters the high-pressure tank 2, the deflection water tank 6 rotates at the same time, the piston cylinder 9 is driven to extend, the air pressure in the high-pressure tank 2 is reduced, the resistance of the high-pressure water entering the high-pressure tank 2 is reduced, the high-pressure water enters the high-pressure tank 2 with the reduced resistance, the energy loss is reduced, the high-pressure water is lifted to a higher position along the water inlet 4, the water naturally flows out and becomes lighter along with the inclination of the deflection water tank 6, the deflection water tank 6, the pressure energy of absorbing the buffer memory with the gas in the high-pressure tank 2 releases the water pressure that changes, send the high-pressure water that gets into in the high-pressure tank 2 to higher position totally, when deflecting basin 6 counter rotation, control valve 8 is opened, and the water receiving tank of deflecting basin 6 holds the water, repeats above-mentioned process.
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 water hammer pump of gravity pressure boost, includes valve body (1), pressure vessel (2), delivery port (3), water inlet (4) and outlet (5), the both ends of valve body (1) are connected with water inlet (4) and outlet (5) respectively, the upper end of valve body (1), its characterized in that are located in pressure vessel (2): the bottom of overhead tank (2) lateral wall is equipped with delivery port (3), the drainage side of outlet (5) is equipped with and is deflection basin (6) that the seesaw set up, one side of deflection basin (6) is equipped with pouring opening (7), deflection basin (6) unilateral water receiving is poured through pouring opening (7) when its slope, control valve (8) on drive outlet (5) are opened or are closed when deflection basin (6) rotate, the upper portion intercommunication of overhead tank (2) has connecting elbow (10), connecting elbow (10) intercommunication has connecting lever (9), the one end of deflection basin (6) is through connecting lever (11) and piston cylinder (9) swing joint and drive piston cylinder (9) flexible, and drive piston cylinder (9) stretch out when the valve of deflection basin (6) drive outlet (5) is closed.
2. A gravity-fed ram pump as claimed in claim 1, wherein: the control valve (8) is a butterfly valve or a ball valve, and a control shaft of the control valve (8) is in transmission connection with a rotating shaft of the deflection water tank (6) through a gear.
3. A gravity-fed ram pump as claimed in claim 2, wherein: the diameter of a gear on the deflection water tank (6) is larger than that of a gear on the control valve (8), the gear on the deflection water tank (6) and the gear on the control valve (8) are both half gears, when the deflection water tank (6) is horizontal, the control valve (8) and the gear on the deflection water tank (6) are at the meshing initial position, and the control valve (8) is in an opening state at the moment.
4. A gravity-fed ram pump as claimed in claim 1, wherein: the deflection water tank (6) is a cuboid, a partition plate is arranged in the middle of the deflection water tank (6), one side, close to the piston cylinder (9), of the deflection water tank (6) is a weight box, the other side of the deflection water tank is a water receiving tank, and the length of the weight box is larger than that of the water receiving tank.
5. A gravity-fed ram pump as claimed in claim 4, wherein: the weight structure in the deflection water tank (6) is an elastic water bag, half of water is contained in the water bag, and an additional water delivery device is arranged on the water receiving tank of the deflection water tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010798273.0A CN112012968A (en) | 2020-08-11 | 2020-08-11 | Gravity supercharging hydraulic ram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010798273.0A CN112012968A (en) | 2020-08-11 | 2020-08-11 | Gravity supercharging hydraulic ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112012968A true CN112012968A (en) | 2020-12-01 |
Family
ID=73499474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010798273.0A Pending CN112012968A (en) | 2020-08-11 | 2020-08-11 | Gravity supercharging hydraulic ram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112012968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118360957A (en) * | 2024-06-19 | 2024-07-19 | 山西建筑工程集团有限公司 | Protection device for cutting excavation |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988002445A1 (en) * | 1986-10-03 | 1988-04-07 | Shinei Isa | Hydraulic ram |
| US4930993A (en) * | 1989-07-07 | 1990-06-05 | Han Tai Kang | Energy regenerative apparatus for a water hammer type pump |
| CN2588073Y (en) * | 2002-04-11 | 2003-11-26 | 岳起鹏 | Pressure increased potential energy pump |
| CN201080902Y (en) * | 2007-03-28 | 2008-07-02 | 陈乔 | Lever type self-pouring water bucket gravitational force piston-type pump |
| RU2489603C1 (en) * | 2012-06-06 | 2013-08-10 | Михаил Иванович Голубенко | Hydraulic ram |
| CN105145285A (en) * | 2015-08-07 | 2015-12-16 | 柳超 | Energy-saving watering sprinkler based on hydraulic ram |
| CN105179329A (en) * | 2015-08-07 | 2015-12-23 | 柳超 | Efficient hydraulic ram |
| CN205401746U (en) * | 2016-03-03 | 2016-07-27 | 上海阳一阀门有限公司 | Flange formula electric butterfly valve |
| CN208089954U (en) * | 2018-03-30 | 2018-11-13 | 良工阀门集团有限公司 | A kind of butterfly valve that can quickly open |
| CN109882455A (en) * | 2019-04-15 | 2019-06-14 | 姜沣城 | A kind of hydraulic ram |
| CN111120713A (en) * | 2020-02-04 | 2020-05-08 | 韩国昊 | Butterfly valve |
-
2020
- 2020-08-11 CN CN202010798273.0A patent/CN112012968A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988002445A1 (en) * | 1986-10-03 | 1988-04-07 | Shinei Isa | Hydraulic ram |
| US4930993A (en) * | 1989-07-07 | 1990-06-05 | Han Tai Kang | Energy regenerative apparatus for a water hammer type pump |
| CN2588073Y (en) * | 2002-04-11 | 2003-11-26 | 岳起鹏 | Pressure increased potential energy pump |
| CN201080902Y (en) * | 2007-03-28 | 2008-07-02 | 陈乔 | Lever type self-pouring water bucket gravitational force piston-type pump |
| RU2489603C1 (en) * | 2012-06-06 | 2013-08-10 | Михаил Иванович Голубенко | Hydraulic ram |
| CN105145285A (en) * | 2015-08-07 | 2015-12-16 | 柳超 | Energy-saving watering sprinkler based on hydraulic ram |
| CN105179329A (en) * | 2015-08-07 | 2015-12-23 | 柳超 | Efficient hydraulic ram |
| CN205401746U (en) * | 2016-03-03 | 2016-07-27 | 上海阳一阀门有限公司 | Flange formula electric butterfly valve |
| CN208089954U (en) * | 2018-03-30 | 2018-11-13 | 良工阀门集团有限公司 | A kind of butterfly valve that can quickly open |
| CN109882455A (en) * | 2019-04-15 | 2019-06-14 | 姜沣城 | A kind of hydraulic ram |
| CN111120713A (en) * | 2020-02-04 | 2020-05-08 | 韩国昊 | Butterfly valve |
Non-Patent Citations (2)
| Title |
|---|
| 吴达人: "《泵原理、计算与结构第13版》", 31 December 1991, 机械工业出版社 * |
| 李大志: "《农用水泵技术问答》", 31 January 1979, 陕西人民出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118360957A (en) * | 2024-06-19 | 2024-07-19 | 山西建筑工程集团有限公司 | Protection device for cutting excavation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201158815Y (en) | Pull-type hydraulic self-control gravity conversion opening and closing gate | |
| CN102678431A (en) | Wave energy conversion system | |
| CN112012968A (en) | Gravity supercharging hydraulic ram | |
| CN112096926A (en) | Hydraulic pressure slowly closes formula check valve for hydraulic engineering | |
| CN103527391B (en) | Ocean wave power generation system | |
| CN114790717B (en) | Dykes and dams buffering wave-proof device for water conservancy construction | |
| CN202732210U (en) | Fluid pressure converting energy interrupted collecting cylinder | |
| CN112726547A (en) | Energy-saving type fishing and driving integrated device | |
| CN108502942A (en) | Energy-saving sewage treatment equipment | |
| CN110946055A (en) | Energy-conserving irrigation device | |
| GB2522092A (en) | Rigid body dynamics-based hydropower technology | |
| CN107676312A (en) | A kind of two-step supercharging noise-reduction type hydraulic ram | |
| CN103032387B (en) | Coriolis vortex fluid pressure intensity conversion double-strike water hammer pump | |
| CN114251217A (en) | Small-size stationary flow hydroelectric power generation system | |
| CN112533446B (en) | Converter system and converter cooling water system thereof | |
| CN113294405A (en) | Combined hydraulic cylinder with floating cylinder body | |
| CN108180104A (en) | Hydro-motor based on reversal valve | |
| CN101463618A (en) | Water energy vacuum water saver | |
| CN2311623Y (en) | Structure of energy-free water feeder | |
| CN118462542B (en) | Gas compression system for recycling ionic liquid | |
| CN221941518U (en) | Three-in-one water-lifting and power generation integrated pumping station | |
| CN111441897A (en) | Siphon type water circulation intelligent power generation device system | |
| CN105545828A (en) | Vortex booster water hammer pump | |
| CN110723783A (en) | A seawater desalination device utilizing wave energy | |
| CN218644870U (en) | Butterfly check valve of two-way buffering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201201 |