CN111305731A - Opening and closing system for climate conversion device of subway shielding door - Google Patents
Opening and closing system for climate conversion device of subway shielding door Download PDFInfo
- Publication number
- CN111305731A CN111305731A CN202010122956.4A CN202010122956A CN111305731A CN 111305731 A CN111305731 A CN 111305731A CN 202010122956 A CN202010122956 A CN 202010122956A CN 111305731 A CN111305731 A CN 111305731A
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- CN
- China
- Prior art keywords
- frame
- opening
- fixed
- climate
- blades
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/08—Louvre doors, windows or grilles
- E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
- E06B7/086—Louvre doors, windows or grilles with rotatable lamellae interconnected for concurrent movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
- F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
- F24D13/026—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements in door, windows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/002—Air heaters using electric energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding means
- F24H9/0063—Guiding means in air channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/20—Heat consumers
- F24D2220/2009—Radiators
- F24D2220/2036—Electric radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Abstract
The invention belongs to the technical field of subway shield doors, and particularly relates to an opening and closing system for a climate conversion device of a subway shield door, which comprises a frame assembly, wherein the frame assembly comprises two side frames, four baffle frames are fixedly arranged between opposite sides of the two side frames, the tops and the bottoms of the four baffle frames are respectively and fixedly provided with an upper cover plate and a lower bottom plate, one opposite sides of the two side frames are fixedly connected with three connecting shafts through bearings, one opposite end of each connecting shaft penetrates through the corresponding side frame and extends to a position between the opposite sides of the two side frames, and a blade is fixedly arranged between the opposite ends of each connecting shaft. The three connecting shafts can be driven to rotate simultaneously through the actuating mechanism, so that the three blades are driven to rotate simultaneously, the unified adjustment of the blades can be realized by adopting one actuating mechanism, and the size of the climate conversion device can be reduced.
Description
Technical Field
The invention relates to the technical field of subway shielded doors, in particular to an opening and closing system for a climate conversion device of a subway shielded door.
Background
The subway shield door is a high-tech product integrating the subjects of building, machinery, materials, electronics, information and the like, and is applied to a subway platform; the platform and the train running area are separated by the shielding door, and the automatic opening and the automatic closing of the shielding door are controlled by the control system.
In order to improve the environment of waiting for a vehicle and improve the comfort level of waiting for the vehicle, the existing subway shield door is provided with a climate conversion device, the climate conversion device is utilized to ventilate a waiting area, the air quality in the waiting area is improved, and meanwhile, the heat dissipation and ventilation effects are achieved in summer, so that the energy is saved, the environment is protected, the opening and closing mechanism is the main structure of the climate conversion device, the circulation of air and the adjustment of air flow flux are achieved through the opening and closing mechanism, and the existing climate conversion device further has the following defects:
1. the design of the opening and closing structure is complex, and a plurality of power devices are required to independently control each air plate, so that the size of the climate conversion device is large, and the uniform driving and adjustment of the air plates cannot be realized;
2. the climate conversion device can only realize ventilation in summer, and can only be kept in a closed state in winter, an independent heating device is needed to be used for heating the interior of the subway, the climate conversion device cannot be fully utilized, resource waste is caused, resources cannot be further saved, and energy conservation and environmental protection of the climate conversion device are reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an opening and closing system for a climate conversion device of a subway shielding door, which solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: an opening and closing system for a climate conversion device of a subway shielded door comprises a frame assembly, wherein the frame assembly comprises two side frames, four baffle frames are fixedly arranged between opposite sides of the two side frames, the tops and the bottoms of the four baffle frames are respectively and fixedly provided with an upper cover plate and a lower base plate, the opposite sides of the two side frames are respectively and fixedly connected with three connecting shafts through bearings, the opposite ends of each two connecting shafts penetrate through the corresponding side frames and extend to the positions between the opposite sides of the two side frames, blades are fixedly arranged between the opposite ends of each two connecting shafts, the blades are three and equidistantly and vertically arranged in the frame assembly, gaps are formed between every two adjacent blades, and an executing mechanism for simultaneously driving the three connecting shafts to rotate forwards or reversely is arranged on the outer side of one side frame, and a heating device for heating wind is arranged in the frame assembly.
As a preferred technical scheme, the executing mechanism comprises a transmission shaft and three connecting shaft rods, the transmission shaft is fixed on the outer side of the side frame through bearings, the three connecting shaft rods are fixedly sleeved on the corresponding connecting shafts respectively, one ends of the three connecting shaft rods are hinged with connecting rods, one ends of the connecting rods are hinged with transmission rods I, one ends, far away from the connecting rods, of the transmission rods I are hinged with transmission rods II, one ends, far away from the transmission rods I, of the transmission rods II are fixedly sleeved on the transmission shaft, and the executing mechanism further comprises a power mechanism for driving the transmission shaft to rotate.
As a preferred technical scheme of the present invention, the power mechanism is an electric actuator, an output end of the electric actuator is fixedly connected to one end of the transmission shaft, and the power mechanism is fixedly provided with an installation plate fixed to an outer side of the side frame.
As a preferred technical solution of the present invention, the heating device includes a fixing frame disposed inside the frame assembly, the fixing frame is fixedly installed inside the frame assembly, and the heating device further includes a bracket assembly for installing the fixing frame.
As a preferred technical scheme, the support assembly comprises two air deflectors, the two air deflectors are respectively fixed at the bottom of the upper cover plate and the top of the lower bottom plate, a bell-mouth-shaped ventilation cavity is formed between the two air deflectors, reinforcing plates are fixedly mounted on the opposite sides of the two air deflectors, connecting plates are fixedly mounted on the two reinforcing plates, and the fixing frame is fixed on the two connecting plates.
(III) advantageous effects
Compared with the prior art, the invention provides an opening and closing system for a climate conversion device of a subway shielding door, which has the following beneficial effects:
1. this subway shield door weather conversion device is with opening and close system can drive three connecting axle simultaneously through actuating mechanism and take place to rotate to drive three blade simultaneously and take place to rotate, adopt an actuating mechanism can realize the unified regulation of a plurality of blades like this, can reduce weather conversion device's volume.
2. This subway shield door weather conversion equipment is with system of opening and close, through the inside design that increases heating device at frame subassembly, also can normal use weather conversion equipment when winter, cold wind is when frame subassembly enters into subway inside, utilize heating device to carry out the thermal treatment to cold wind, consequently, the wind that blows off through frame subassembly is the warm braw, the use of current heating system has been reduced, wherein the wind of the inside circulation of frame subassembly is that the train traveles the in-process and produces, consequently, do not need extra device to produce the distinguished and admirable, thereby compare advantage and the advantage that has environmental protection and energy saving with heating system.
Drawings
FIG. 1 is a perspective elevation view of the present invention;
FIG. 2 is a rear view of the three-dimensional structure of the present invention;
FIG. 3 is a perspective view of a portion of the present invention;
FIG. 4 is a perspective sectional view of the present invention;
fig. 5 is a perspective view of a portion of the frame assembly of the present invention.
In the figure: 1. a frame assembly; 101. a side frame; 102. a frame blocking frame; 103. an upper cover plate; 104. a lower base plate; 2. a connecting shaft; 3. a blade; 4. an actuator; 401. a drive shaft; 402. a connecting shaft rod; 403. a connecting rod; 404. a transmission rod I; 405. a transmission rod II; 406. a power mechanism; 407. mounting a plate; 5. a heating device; 501. a fixing frame; 502. an electric heating tube; 503. an air deflector; 504. a reinforcing plate; 505. a connecting plate.
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.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: an opening and closing system for a climate conversion device of a subway shielded door comprises a frame assembly 1, wherein the frame assembly 1 comprises two side frames 101, four baffle frames 102 are fixedly arranged between opposite sides of the two side frames 101, the tops and the bottoms of the four baffle frames 102 are respectively and fixedly provided with an upper cover plate 103 and a lower base plate 104, the opposite sides of the two side frames 101 are fixedly connected with three connecting shafts 2 through bearings, the opposite ends of each connecting shaft 2 penetrate through the corresponding side frames 101 and extend to the positions between the opposite sides of the two side frames 101, blades 3 are fixedly arranged between the opposite ends of each connecting shaft 2, the blades 3 are three and are vertically arranged in the frame assembly 1 at equal intervals, gaps exist between every two adjacent blades 3, an executing mechanism 4 which drives the three connecting shafts 2 or rotates forwards and backwards simultaneously is arranged on the outer side of one side frame 101, the frame assembly 1 is internally provided with heating means 5 for heating the wind.
In the embodiment, a complete frame assembly 1 is formed by the mutual matching of two side frames 101, four baffle frames 102, an upper cover plate 103 and a lower bottom plate 104, the frame assembly 1 is used for providing installation positions and moving spaces for structures such as blades 3, an actuating mechanism 4, a heating device 5 and the like, wherein the complete frame assembly 1 is provided with two openings, one opening can be opened and closed due to the existence of the blades 3, and therefore wind generated in the running process of a train can enter the interior of a waiting room through the opening; in the invention, the three connecting shafts 2 can be driven to rotate simultaneously through the actuating mechanism 4, so that the three blades 3 are driven to rotate simultaneously, thus the uniform adjustment of a plurality of blades 3 can be realized by adopting one actuating mechanism 4, and the volume of the climate conversion device can be reduced; according to the invention, through the design of adding the heating device 5 in the frame assembly 1, the climate conversion device can be normally used in winter, and when cold air enters the subway through the frame assembly 1, the cold air is heated by the heating device 5, so that the air blown out from the frame assembly 1 is warm air, the use of the existing heating device is reduced, wherein the air circulating in the frame assembly 1 is generated in the running process of a train, and therefore, an additional device is not needed to generate air flow, and the climate conversion device has the advantages and advantages of environmental protection and energy saving compared with the heating device.
Specifically, the actuating mechanism 4 includes a transmission shaft 401 and three connecting shaft rods 402, the transmission shaft 401 is fixed on the outer side of the side frame 101 through a bearing, the three connecting shaft rods 402 are respectively and fixedly sleeved on the corresponding connecting shafts 2, one end of each connecting shaft rod 402 is hinged to a connecting rod 403, one end of each connecting rod 403 is hinged to a transmission rod i 404, one end, away from the connecting rod 403, of each transmission rod i 404 is hinged to a transmission rod ii 405, one end, away from the transmission rod i 404, of each transmission rod ii 405 is fixedly sleeved on the transmission shaft 401, and the actuating mechanism 4 further includes a power mechanism 406 for.
In this embodiment, the power mechanism 406 drives the transmission shaft 401 to rotate, so as to open and close the three blades 3, wherein the opening operation of the blades 3 is as follows: the power mechanism 406 drives the transmission shaft 401 to rotate clockwise, the transmission rod II 405 is fixed on the transmission shaft 401, therefore, the transmission rod II 405 rotates clockwise along with the transmission shaft 401, at the moment, the transmission rod II 405 drives the transmission rod I404 to move upwards in the rotating process, then the transmission rod I404 drives the connecting rod 403 to move upwards, and as one end of the connecting rod 402 is hinged with the connecting rod 403 and the other end of the connecting rod is fixed with the connecting shaft 2, the connecting rod 402 can be driven to rotate anticlockwise in the upwards moving process, and at the moment, the blade 3 can be driven to rotate to open an opening which is shielded by the blade 3; similarly, the closing operation of the blade 3 is directly performed by driving the transmission shaft 401 to rotate counterclockwise through the power mechanism 406.
Specifically, the power mechanism 406 is an electric actuator, an output end of the electric actuator is fixedly connected with one end of the transmission shaft 401, an installation plate 407 is fixedly installed on the power mechanism 406, and the installation plate 407 is fixed on the outer side of the side frame 101.
In this embodiment, the electric actuator is directly adopted to drive the transmission shaft 401 to rotate, and the electric actuator has the advantages of light weight, precision, wear resistance, high safety, convenience in use and the like, so that the electric actuator is suitable for being used as the power mechanism 406 for driving the transmission shaft 401 to rotate.
Specifically, heating device 5 includes fixed frame 501, and fixed frame 501 sets up in the inside of frame subassembly 1, and the inside fixed mounting of fixed frame 501 has a plurality of electric heating pipe 502, and heating device 5 still includes the bracket component of the fixed frame 501 of installation.
In this embodiment, when the climate switching device is used in winter, the blades 3 rotate under the action of the actuating mechanism 4, cold air smoothly enters the inside of the frame assembly 1 through the opening of the frame assembly 1, and at this time, the cold air can enter the interior of the waiting room only through the electric heating pipe 502, so that the cold air is heated under the action of the electric heating pipe 502, the air entering the interior of the waiting room is warm air, and the climate switching device can be used in winter.
Specifically, the bracket assembly includes two air deflectors 503, the two air deflectors 503 are respectively fixed at the bottom of the upper cover plate 103 and the top of the lower base plate 104, a bell mouth-shaped ventilation cavity is formed between the two air deflectors 503, reinforcing plates 504 are respectively and fixedly mounted on opposite sides of the two air deflectors 503, connecting plates 505 are respectively and fixedly mounted on the two reinforcing plates 504, and the fixing frame 501 is fixed on the two connecting plates 505.
In this embodiment, through the design of two deflectors 503, a bell mouth-shaped ventilation cavity can be formed between two deflectors 503, so that the cold air entering the inside of the frame assembly 1 is guided by the two deflectors 503 to be collected inside the ventilation cavity, thereby reducing the design of the structural size of the fixed frame 501, and meanwhile, collecting the cold air, which is beneficial to fully heating the cold air, the fixation of the fixed frame 501 can be completed through the matching of the reinforcing plate 504 and the connecting plate 505, and the structural strength of the fixed frame 501 is high.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a subway shielded door weather conversion device is with opening and close system which characterized in that: the novel fan blade assembly comprises a frame assembly (1), wherein the frame assembly (1) comprises two side frames (101), four blocking frames (102) are fixedly arranged between one opposite sides of the two side frames (101), the tops and the bottoms of the four blocking frames (102) are respectively and fixedly provided with an upper cover plate (103) and a lower base plate (104), one opposite sides of the two side frames (101) are respectively and fixedly connected with three connecting shafts (2) through bearings, one opposite ends of every two connecting shafts (2) penetrate through the corresponding side frames (101) and extend to a position between the opposite sides of the two side frames (101), blades (3) are fixedly arranged between the opposite ends of every two connecting shafts (2), the number of the blades (3) is three, the blades are arranged in the frame assembly (1) at equal intervals and are vertically arranged in every two adjacent blades (3), and gaps exist between every two adjacent blades (3), an actuating mechanism (4) which simultaneously drives the three connecting shafts (2) to rotate forwards or backwards is arranged on the outer side of one side frame (101), and a heating device (5) for heating wind is arranged in the frame assembly (1).
2. The opening and closing system for the climate converting device of the metro shielding door according to claim 1, wherein: the actuating mechanism (4) comprises a transmission shaft (401) and three connecting shaft rods (402), the transmission shaft (401) is fixed to the outer side of the side frame (101) through a bearing, the three connecting shaft rods (402) are fixedly connected to the corresponding connecting shafts (2) in a sleeved mode respectively, one end of each connecting shaft rod (402) is hinged to a connecting rod (403), one end of each connecting rod (403) is hinged to a transmission rod I (404), one end, far away from the connecting rod (403), of the transmission rod I (404) is hinged to a transmission rod II (405), one end, far away from the transmission rod I (404), of the transmission rod II (405) is fixedly connected to the transmission shaft (401) in a sleeved mode, and the actuating mechanism (4) further comprises a power mechanism (406) for.
3. The opening and closing system for the climate converting device of the metro shielding door according to claim 2, wherein: the power mechanism (406) is an electric actuator, the output end of the electric actuator is fixedly connected with one end of the transmission shaft (401), an installation plate (407) is fixedly installed on the power mechanism (406), and the installation plate (407) is fixed on the outer side of the side frame (101).
4. The opening and closing system for the climate converting device of the metro shielding door according to claim 1, wherein: heating device (5) are including fixed frame (501), fixed frame (501) set up in the inside of frame subassembly (1), the inside fixed mounting of fixed frame (501) has a plurality of electric heating pipe (502), heating device (5) are still including the bracket component of the fixed frame of installation (501).
5. The opening and closing system for the climate converting device of the metro shielding door according to claim 1, wherein: the support assembly comprises two air deflectors (503), the two air deflectors (503) are respectively fixed to the bottom of the upper cover plate (103) and the top of the lower bottom plate (104), a bell-mouth-shaped ventilation cavity is formed between the two air deflectors (503), reinforcing plates (504) are fixedly mounted on the two opposite sides of the two air deflectors (503), connecting plates (505) are fixedly mounted on the two reinforcing plates (504), and the fixing frame (501) is fixed to the two connecting plates (505).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122956.4A CN111305731A (en) | 2020-02-27 | 2020-02-27 | Opening and closing system for climate conversion device of subway shielding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122956.4A CN111305731A (en) | 2020-02-27 | 2020-02-27 | Opening and closing system for climate conversion device of subway shielding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111305731A true CN111305731A (en) | 2020-06-19 |
Family
ID=71151765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010122956.4A Pending CN111305731A (en) | 2020-02-27 | 2020-02-27 | Opening and closing system for climate conversion device of subway shielding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111305731A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2400735Y (en) * | 1999-10-20 | 2000-10-11 | 何旭东 | Positive temperature coefficient electric-heating boby hot-air curtain machine |
| CN2432488Y (en) * | 2000-06-30 | 2001-05-30 | 沈阳金威热敏材料有限公司 | Hot air screen machine |
| CN201903145U (en) * | 2010-12-28 | 2011-07-20 | 广州精益汽车空调有限公司 | Ventilation shutter blind for air-conditioner |
| CN203793329U (en) * | 2013-12-31 | 2014-08-27 | 南京康尼机电股份有限公司 | Electric conversion device for platform screen door |
| CN110030658A (en) * | 2019-05-13 | 2019-07-19 | 轨道交通节能北京市工程研究中心有限公司 | A kind of unilateral or bilateral outlet air ultra-thin vertical air curtain |
-
2020
- 2020-02-27 CN CN202010122956.4A patent/CN111305731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2400735Y (en) * | 1999-10-20 | 2000-10-11 | 何旭东 | Positive temperature coefficient electric-heating boby hot-air curtain machine |
| CN2432488Y (en) * | 2000-06-30 | 2001-05-30 | 沈阳金威热敏材料有限公司 | Hot air screen machine |
| CN201903145U (en) * | 2010-12-28 | 2011-07-20 | 广州精益汽车空调有限公司 | Ventilation shutter blind for air-conditioner |
| CN203793329U (en) * | 2013-12-31 | 2014-08-27 | 南京康尼机电股份有限公司 | Electric conversion device for platform screen door |
| CN110030658A (en) * | 2019-05-13 | 2019-07-19 | 轨道交通节能北京市工程研究中心有限公司 | A kind of unilateral or bilateral outlet air ultra-thin vertical air curtain |
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Application publication date: 20200619 |
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| RJ01 | Rejection of invention patent application after publication |