CN111021903A - Security door system convenient for rescuing from fire - Google Patents
Security door system convenient for rescuing from fire Download PDFInfo
- Publication number
- CN111021903A CN111021903A CN201911096423.7A CN201911096423A CN111021903A CN 111021903 A CN111021903 A CN 111021903A CN 201911096423 A CN201911096423 A CN 201911096423A CN 111021903 A CN111021903 A CN 111021903A
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- China
- Prior art keywords
- door body
- controller
- door
- sensor
- smoke
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- 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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- 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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
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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
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
Abstract
The invention belongs to the technical field of security doors, and particularly relates to a security door system convenient for rescuing from fire, which comprises: the door frame, install in the door frame and with door frame swivelling joint's door body, be used for spraying the spray set who cools down for the door body, be used for monitoring the sensor of the environment around the door body, with spray set and sensor electric connection controller, the controller is used for receiving the signal of sensor and controls spray set's opening and close. The anti-theft door system convenient for fire rescue detects the surrounding environment through the sensor and sends a signal to the controller, and when the controller judges that the signal exceeds a preset threshold value, the spraying device is controlled to cool the door body, so that the problem that the door body is difficult to normally open due to deformation caused by high-temperature baking is avoided.
Description
Technical Field
The invention belongs to the technical field of security doors, and particularly relates to a security door system convenient for rescuing from fire.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The door with certain safety protection performance and corresponding anti-theft safety level can resist abnormal opening under certain conditions within certain time. Although the security door can guarantee the property safety of users, the security door is not beneficial to escape of people when a fire disaster happens. Under the condition of fire, the existing anti-theft door is baked at high temperature, the door body or the lock tongue of the anti-theft door is easily deformed, so that the anti-theft door is difficult to normally open, personnel escape and are blocked, the escape probability is greatly reduced, and on the other hand, rescue personnel are difficult to enter the house for rescue.
Disclosure of Invention
The invention aims to at least solve the problem that the security door is difficult to normally open in case of fire in the prior art, and the aim is realized by the following technical scheme:
the invention provides a burglary-resisting door system convenient for rescuing in fire, which comprises:
a door frame;
the door body is arranged in the door frame and is rotationally connected with the door frame;
the spraying device is arranged outside the door body and is aligned with the door body, and the spraying device is used for spraying and cooling the door body;
the sensor is used for monitoring the environment around the door body;
and the controller is electrically connected with the spraying device and the sensor and is used for receiving the signal of the sensor and controlling the on-off of the spraying device.
According to the anti-theft door system convenient for fire rescue, provided by the invention, the sensor is used for detecting the surrounding environment and sending a signal to the controller, and when the controller judges that the signal exceeds a preset threshold value, the spraying device is controlled to cool the door body, so that the problem that the door body is difficult to normally open due to deformation caused by high-temperature baking is avoided.
In addition, the burglary-resisting door system for facilitating the rescue of the fire disaster further has the following additional technical characteristics:
in some embodiments of the present invention, the spraying device includes a nozzle whose spraying direction is aligned with the door body, a pipeline for connecting a tap water pipe and the nozzle, and an electric control valve disposed on the pipeline, and the electric control valve is electrically connected to the controller.
In some embodiments of the invention, the security door system further comprises an alarm, the alarm is electrically connected to the controller, and the controller controls the alarm to give an alarm when the controller determines that the received signal exceeds a preset threshold.
In some embodiments of the invention, the controller is capable of controlling the alarm to emit different alarm tones depending on the type of signal received.
In some embodiments of the present invention, the sensor includes a first temperature sensor disposed at an outer side of the door and a second temperature sensor disposed at an inner side of the door, the first temperature sensor is configured to monitor an outdoor temperature and send a first temperature signal to the controller, and the second temperature sensor is configured to monitor an indoor temperature and send a second temperature signal to the controller.
In some embodiments of the invention, the door body is provided with an opening penetrating through the door body, an escape baffle is arranged in the opening, the escape baffle is connected with the door body through a melting layer, and when the temperature reaches the melting temperature of the melting layer, the escape baffle is separated from the door body or can be pushed to be separated from the door body by manpower.
In some embodiments of the invention, the clearance distance between the escape baffle and the door body is more than 50 mm.
In some embodiments of the present invention, the sensor includes a combustible gas detector disposed on an inner side of the door frame or an inner side of the door body, the combustible gas detector is electrically connected to the controller, and the combustible gas detector sends a combustible gas signal to the controller when monitoring that combustible gas is present on the inner side of the door body.
In some embodiments of the invention, the sensor includes a first smoke sensor disposed on an inner side of the door frame or an inner side of the door body, the first smoke sensor is electrically connected to the controller, and the first smoke sensor sends a first smoke signal to the controller when monitoring that smoke exists on the inner side of the door body.
In some embodiments of the invention, the sensor further includes a second smoke sensor disposed on an outer side of the door frame or an outer side of the door body, the security door system further includes an exhaust fan electrically connected to the controller, the exhaust fan is configured to exhaust smoke on an inner side of the door body, the second smoke sensor is electrically connected to the controller, the second smoke sensor sends a second smoke signal to the controller when monitoring that smoke exists on the inner side of the door body, and the exhaust fan is controlled to be turned on when the controller determines that the second smoke signal exceeds a preset smoke threshold.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 is a schematic structural view illustrating an inside view of a fire rescue security door system according to an embodiment of the present invention;
fig. 2 is a schematic structural view illustrating an outside view of a fire rescue security door system according to an embodiment of the present invention;
FIG. 3 schematically shows a cross-sectional view of section A-A in FIG. 1;
the reference symbols in the drawings denote the following:
1: door frame, 2: door body, 3: spray device, 31: a nozzle, 32: piping, 33: electric control valve, 351: first temperature sensor, 352: second temperature sensor, 4: baffle, 5: fusion layer, 6: combustible gas detector, 7: first flue gas sensor, 8: second flue gas sensor, 9: exhaust fan, 10: controller, 11: an alarm;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "second" and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 3, a first aspect of the present invention provides a security door system for facilitating rescue from a fire, the security door system comprising:
a doorframe 1;
the door body 2 is arranged in the door frame 1 and is rotationally connected with the door frame 1;
the spraying device 3 is arranged outside the door body 2 and is aligned with the door body 2, and the spraying device 3 is used for spraying and cooling the door body 2;
the sensor is used for monitoring the environment around the door body 2;
and the controller 10 is electrically connected with the spraying device 3 and the sensor, and the controller 10 is used for receiving a signal of the sensor and controlling the on-off of the spraying device 3.
According to the anti-theft door system convenient for fire rescue, which is provided by the first aspect of the invention, the sensor detects the surrounding environment and sends a signal to the controller 10, and when the controller 10 judges that the signal exceeds the preset threshold value, the spraying device 3 is controlled to cool the door body 2, so that the door body 2 is prevented from being baked at high temperature to cause deformation and difficult to normally open. The sensor can be the sensor that detects temperature, flue gas, combustible gas etc. spray set 3 locates the outside of the door body 2 to insert the running water, utilize the running water to spray the cooling to the door body 2. One end of the spraying device 3 is connected with a tap water pipe, the other end of the spraying device is a nozzle, an electric control valve can be arranged in the middle of the spraying device 3 to control the spraying device 3 to be opened and closed, and the nozzle structure can be a lotus root nozzle or a tube-type nozzle. The sensor sends a detection signal to the controller 10, the controller judges whether fire hazard exists according to the signal of the sensor and a preset threshold value, the controller 10 presets various threshold values, such as alarm threshold values of temperature, smoke and combustible gas, when the received signal exceeds the preset threshold value, the fire hazard is judged to exist, then the controller 10 controls the spraying device 3 to be opened so as to spray and cool the door body 2, and the door body 2 is prevented from being deformed due to high temperature.
In some embodiments of the present invention, the spraying device 3 includes a nozzle 31 with a spraying direction aligned with the door body 2, a pipeline 32 for connecting a tap water pipe and the nozzle 31, and an electronic control valve 33 disposed on the pipeline 32, wherein the electronic control valve 33 is electrically connected with the controller 10. Through setting up spray set 3 to aim at a body 2, utilize sensor monitoring ambient temperature and send temperature signal for controller 10, when controller 10 judged that temperature signal is greater than the predetermined threshold value, control spray set 3 and spray the cooling to a body 2, avoid a body 2 to receive the high temperature and warp.
In some embodiments of the present invention, the security door system further comprises an alarm 11, the alarm 11 is electrically connected to the controller 10, and the controller 10 controls the alarm 11 to give an alarm when the controller 10 determines that the received signal exceeds a preset threshold. The alarm 11 is arranged, so that the controller 10 controls the alarm 11 to give an alarm when finding a fire hazard and reminds a user of avoiding the hazard in time.
In some embodiments of the invention, the controller 10 is capable of controlling the alarm 11 to emit different alarm tones depending on the type of signal received. The alarm 11 can send out different alarm sounds, such as a smoke alarm sound, a combustible alarm sound, a fire alarm sound and the like, and remind a user of avoiding danger in time through different alarm sounds.
In some embodiments of the present invention, the sensors include a first temperature sensor 351 disposed at an outer side of the door body 2 and a second temperature sensor 352 disposed at an inner side of the door body 2, the first temperature sensor 351 is used for monitoring an outdoor temperature and transmitting a first temperature signal to the controller 10, and the second temperature sensor 352 is used for monitoring an indoor temperature and transmitting a second temperature signal to the controller 10. The first temperature sensor 351 is used to detect the temperature of the outside of the security door in order to cope with the case where the ignition point is located outside the user (indicating that the ignition source is at the other person's home), and the second temperature sensor 352 is used to detect the temperature of the inside of the security door in order to cope with the case where the ignition point is located inside the user's room (the ignition source is at the own home).
In some embodiments of the present invention, the door body 2 is provided with an opening penetrating through the door body 2, an escape baffle 4 is arranged in the opening, the escape baffle 4 is connected with the door body 2 through the melting layer 5, and when the temperature reaches the melting temperature of the melting layer 5, the escape baffle 4 is separated from the door body 2 or can be pushed to be separated from the door body 2 by manpower. The fusing layer 5 is made of a hot-melt material, such as hot-melt colloid or hot-melt foam, when the fire becomes strong and the temperature rises to the melting temperature of the hot-melt material, the hot-melt material is melted due to high temperature, the baffle 4 is separated from the door body 2, indoor personnel can push the baffle 4 to expose the opening, and escape can be carried out by utilizing the opening.
In some embodiments of the invention, the distance between the escape flap 4 and the door body 2 is greater than 50 mm. Too close is avoided with the interval of door body 2 to baffle 4 avoids because of baffle 4 or opening take place to warp, leads to the baffle 4 card to be difficult to the condition opened in the opening.
In some embodiments of the present invention, the sensor includes a combustible gas detector 6 disposed on the inner side of the door frame 1 or the inner side of the door body 2, the combustible gas detector 6 is electrically connected to the controller 10, and the combustible gas detector 6 sends a combustible gas signal to the controller 10 when detecting that combustible gas is present on the inner side of the door body 2. Whether combustible gas leaks in the detection chamber is detected by the combustible gas detector 6, when the combustible gas detector 6 detects combustible gas, the controller 10 controls the alarm 11 to send out alarm sound to remind a user to take measures in time (such as checking a gas valve, opening a window for ventilation and the like), and therefore fire hazards caused by gas leakage are eliminated.
In some embodiments of the present invention, the sensor includes a first smoke sensor 7 disposed on the inner side of the door frame 1 or the inner side of the door body 2, the first smoke sensor 7 is electrically connected to the controller 10, and the first smoke sensor 7 sends a first smoke signal to the controller 10 when detecting that smoke exists on the inner side of the door body 2. The fire may be caused by various reasons, and is not limited to the leakage of combustible gas, so that the detection of smoke by the first smoke sensor 7 is beneficial to the identification of the initial stage of the fire. When the first smoke sensor 7 detects smoke, the controller 10 controls the alarm 11 to emit an alarm sound to remind the user to take measures (e.g., extinguishing fire, opening windows, ventilating, etc.) in time.
In some embodiments of the present invention, the sensor further includes a second smoke sensor 8 disposed on the outer side of the door frame 1 or the outer side of the door body 2, the security door system further includes an exhaust fan 9 electrically connected to the controller 10, the door frame 1 is provided with an exhaust outlet, the exhaust fan 9 is mounted on the exhaust outlet, the exhaust fan 9 is used for exhausting smoke inside the door body 2, the second smoke sensor 8 is electrically connected to the controller 10, the second smoke sensor 8 sends a second smoke signal to the controller 10 when monitoring that smoke exists inside the door body 2, and the exhaust fan 9 is controlled to be turned on when the controller 10 determines that the second smoke signal exceeds a preset smoke threshold. A second flue gas sensor 8 is provided for identifying the flue gas outdoors (in the corridor). Because the smoke can permeate into the room through the gap between the door body 2 and the door frame 1, the exhaust fan 9 is needed to be arranged for discharging the smoke in time so as to avoid the damage of the high-temperature smoke to the human body, strive for more escape time for the escape of people, and further improve the escape probability of the people.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a burglary-resisting door system of convenient rescue of conflagration which characterized in that, burglary-resisting door system includes:
a door frame;
the door body is mounted in the door frame and is in pivot connection with the door frame;
the spraying device is arranged outside the door body and is aligned with the door body, and the spraying device is used for spraying and cooling the door body;
the sensor is used for monitoring the environment around the door body;
and the controller is electrically connected with the spraying device and the sensor and is used for receiving the signal of the sensor and controlling the on-off of the spraying device.
2. A fire rescue security door system as claimed in claim 1, wherein the spraying device comprises a nozzle having a spraying direction directed at the door body, a pipeline for connecting a tap water pipe and the nozzle, and an electric control valve disposed on the pipeline, the electric control valve being electrically connected to the controller.
3. A fire rescue security door system as claimed in claim 1, further comprising an alarm electrically connected to the controller, wherein the controller controls the alarm to issue an alarm when the controller determines that the received signal exceeds a preset threshold.
4. A fire rescue security door system as claimed in claim 1, wherein the controller is capable of controlling the alarm to emit different alarm tones according to the type of the received signal.
5. A fire rescue security door system as claimed in claim 1, wherein the sensors include a first temperature sensor disposed outside the door for monitoring outdoor temperature and sending a first temperature signal to the controller, and a second temperature sensor disposed inside the door for monitoring indoor temperature and sending a second temperature signal to the controller.
6. A fire rescue burglary-resisting door system as claimed in claim 1, wherein the door body is provided with an opening penetrating through the door body, an escape baffle is arranged in the opening, the escape baffle is connected with the door body through a melting layer, and when the temperature reaches the melting temperature of the melting layer, the escape baffle is separated from the door body or can be pushed to be separated from the door body by manpower.
7. A fire rescue burglary-resisting door system as claimed in claim 6, wherein the clearance distance between the escape baffle and the door body is more than 50 mm.
8. A fire rescue burglary-resisting door system as claimed in claim 4, wherein the sensor comprises a combustible gas detector arranged on the inner side of the door frame or the inner side of the door body, the combustible gas detector is electrically connected with the controller, and the combustible gas detector sends a combustible gas signal to the controller when detecting that combustible gas exists on the inner side of the door body.
9. A fire rescue burglary-resisting door system as claimed in claim 4, wherein the sensor comprises a first smoke sensor arranged on the inner side of the door frame or the inner side of the door body, the first smoke sensor is electrically connected with the controller, and the first smoke sensor sends a first smoke signal to the controller when detecting that smoke exists on the inner side of the door body.
10. A fire rescue security door system as claimed in claim 9, wherein the sensor further comprises a second smoke sensor disposed on the outer side of the door frame or the outer side of the door body, the security door system further comprises an exhaust fan electrically connected to the controller, the exhaust fan is configured to exhaust smoke from the inner side of the door body, the second smoke sensor is electrically connected to the controller, the second smoke sensor monitors that the inner side of the door body has smoke and sends a second smoke signal to the controller, and when the controller determines that the second smoke signal exceeds a preset smoke threshold, the exhaust fan is controlled to be turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096423.7A CN111021903A (en) | 2019-11-11 | 2019-11-11 | Security door system convenient for rescuing from fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096423.7A CN111021903A (en) | 2019-11-11 | 2019-11-11 | Security door system convenient for rescuing from fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111021903A true CN111021903A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911096423.7A Pending CN111021903A (en) | 2019-11-11 | 2019-11-11 | Security door system convenient for rescuing from fire |
Country Status (1)
| Country | Link |
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| CN (1) | CN111021903A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627690A (en) * | 2020-12-17 | 2021-04-09 | 南通海鹰门窗安装工程有限公司 | Intelligent security burglary-resisting window of fleing |
| CN113332623A (en) * | 2021-06-04 | 2021-09-03 | 台州田月桑时科技有限公司 | Assembled building fire escape system |
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| CN109686025A (en) * | 2018-12-29 | 2019-04-26 | 湖南汇博电子科技股份有限公司 | Fire-fighting and rescue bootstrap technique, device and readable storage medium storing program for executing |
| CN209510120U (en) * | 2018-12-05 | 2019-10-18 | 广西金百大科技有限责任公司 | A kind of fire-proof and thermal-insulation formula fire resistant doorsets |
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| CN201991404U (en) * | 2011-01-13 | 2011-09-28 | 凌立强 | Intelligent active anti-theft door system |
| CN205644847U (en) * | 2016-04-26 | 2016-10-12 | 周志伟 | Bootstrap system of fleing safely |
| CN206246022U (en) * | 2016-12-06 | 2017-06-13 | 刘士扬 | A kind of safe escape door |
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| CN209510120U (en) * | 2018-12-05 | 2019-10-18 | 广西金百大科技有限责任公司 | A kind of fire-proof and thermal-insulation formula fire resistant doorsets |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627690A (en) * | 2020-12-17 | 2021-04-09 | 南通海鹰门窗安装工程有限公司 | Intelligent security burglary-resisting window of fleing |
| CN112627690B (en) * | 2020-12-17 | 2022-04-12 | 南通海鹰门窗安装工程有限公司 | Intelligent security burglary-resisting window of fleing |
| CN113332623A (en) * | 2021-06-04 | 2021-09-03 | 台州田月桑时科技有限公司 | Assembled building fire escape system |
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Application publication date: 20200417 |