CN112221038B - Multifunctional automatic fire fighting system - Google Patents
Multifunctional automatic fire fighting system Download PDFInfo
- Publication number
- CN112221038B CN112221038B CN202011116855.2A CN202011116855A CN112221038B CN 112221038 B CN112221038 B CN 112221038B CN 202011116855 A CN202011116855 A CN 202011116855A CN 112221038 B CN112221038 B CN 112221038B
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- motor
- fire
- fixedly connected
- fighting system
- isolation door
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- 239000000779 smoke Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims description 56
- 230000007246 mechanism Effects 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/24—Operating or controlling mechanisms
-
- 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)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Special Wing (AREA)
Abstract
The invention discloses a multifunctional automatic fire fighting system, wherein each first motor is electrically connected with a market power supply, the output end of each second motor is sleeved with a transmission gear, the transmission gear is meshed with a clamping piece, the clamping piece corresponds to a first limit plate, the signal output end of a smoke alarm is connected with the signal input end of a main controller, the signal input end of a storage battery is connected with the signal output end of the main controller, the second motor is electrically connected with the storage battery, when a fire disaster occurs, the smoke alarm transmits an alarm signal to the main controller, the market power supply is turned off, the first motor stops working, the second motor rotates the transmission gear under the power supply of the storage battery to separate a second limit plate from the first limit plate, the flexible isolating door falls under the action of self gravity and seals the area on fire, thereby isolating the fire and reducing the property loss of merchants.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a multifunctional automatic fire fighting system.
Background
Along with the continuous development of social economy, more markets of market appear at people's one's side more, and the market the inside has the special cabinet of selling all kinds of article, in case the market breaks out a fire, does not have any fire protection isolation facilities between each special cabinet, along with the development of the condition of a fire, produces chain reaction easily for more merchants cause great loss of property.
Disclosure of Invention
The invention aims to provide a multifunctional automatic fire-fighting system, and aims to solve the technical problems that in the prior art, once a fire disaster occurs in a market, no fire-fighting isolation facilities exist among all special cabinets, chain reaction is easy to generate along with the development of the fire condition, and more merchants cause great property loss.
In order to achieve the purpose, the multifunctional automatic fire fighting system comprises a main controller, a smoke alarm, an isolation mechanism and a storage battery, wherein the isolation mechanism comprises a power device and a flexible isolation door, the power device comprises two first motors, two output gears, a rotating shaft and two clamping mechanisms, the rotating shaft is fixedly connected with the flexible isolation door and is positioned at one end, far away from the ground, of the flexible isolation door, two ends of the rotating shaft are respectively provided with a tooth part, each first motor is fixedly connected with a wall surface and is positioned at two sides of the flexible isolation door, the output end of each first motor is provided with one output gear, each output gear is respectively meshed with one tooth part, each first motor is electrically connected with a market power supply, and each clamping mechanism comprises a second motor, a first clamping mechanism and a second clamping mechanism, Drive gear and card are held the piece, second motor and wall fixed connection, and be located the both sides of flexible isolation door, and be located the below of first motor, every the output of second motor all overlaps and is equipped with drive gear, drive gear with the meshing of card holding, the one end that flexible isolation door is close to ground is provided with first limiting plate, card hold the piece with first limiting plate is corresponding, smoke alarm sets up at the wall top, the master controller with the battery all sets up in the wall body, smoke alarm's signal output part with the signal input part of master controller is connected, the signal input part of battery with the signal output part of master controller is connected, the second motor with battery electric connection.
Wherein, the card is held the piece and is included first slip frame, ratch and second limiting plate, the one end and the wall fixed connection of first slip frame, and be located the top of second motor, the ratch with drive gear meshes, and is located the inside of first slip frame, the second limiting plate with ratch fixed connection, and be located one side that the wall was kept away from to the ratch.
The multifunctional automatic fire-fighting system further comprises a sinking plate, wherein the sinking plate is fixedly connected with the flexible isolation door and is positioned at one end, far away from the isolation mechanism, of the flexible isolation door.
Wherein, multi-functional automatic fire extinguishing system still includes buffer layer and fire prevention frame, fire prevention frame with sink board fixed connection, and be located sink the board and keep away from the one end of flexible isolation door, the buffer layer with sink board fixed connection, and be located sink the board and keep away from the one end of flexible isolation door, and be located the inside of fire prevention frame.
The multifunctional automatic fire fighting system further comprises a fire box, the fire box is fixedly connected with the wall surface and located at one end, far away from the ground, of the flexible isolation door, and the isolation mechanism is located inside the fire box.
The fireproof box is characterized in that a first placing plate and a second placing plate are arranged inside the fireproof box, the first motor is in threaded connection with the first placing plate and is located above the first placing plate, and the second motor is in threaded connection with the second placing plate and is located above the second placing plate.
The invention has the beneficial effects that: the rotating shaft is fixedly connected with the flexible isolating door, the two ends of the rotating shaft are respectively provided with a tooth part, the output end of each first motor is provided with one output gear, each output gear is respectively meshed with one tooth part, each first motor is electrically connected with a power supply of a shopping mall, the output end of each second motor is sleeved with the transmission gear, the transmission gear is meshed with the clamping piece, one end of the flexible isolating door close to the ground is provided with a first limiting plate, the clamping piece corresponds to the first limiting plate, the smoke alarm is arranged on the top of the wall, the main controller and the storage battery are both arranged in the wall, the signal output end of the smoke alarm is connected with the signal input end of the main controller, and the signal input end of the storage battery is connected with the signal output end of the main controller, the second motor with battery electric connection, under the normal condition first motor drives the axis of rotation rotates to the rolling epaxial flexible isolation door, the battery is right the second motor power supply, the second motor drives drive gear rotates, makes the card hold the piece with first limiting plate supports and holds, and the conflagration comes temporarily, the smoke alarm with alarm signal transmission extremely the master controller, the market power is closed, first motor stop work, the second motor is in under the power supply of battery, through rotating drive gear makes the second limiting plate with first limiting plate separation, flexible isolation door falls under the effect of self gravity, will catch fire regional seal to cut off the condition of a fire, reduce trade company's loss of property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a side view of the isolation mechanism of the present invention.
Fig. 2 is a structural sectional view taken along line a-a of fig. 1 according to the present invention.
Fig. 3 is a schematic structural diagram of the power plant of the present invention.
Fig. 4 is a schematic view of the structure of the fire extinguishing apparatus of the present invention.
Fig. 5 is a schematic structural view of the control mechanism of the present invention.
FIG. 6 is a functional block diagram of the operational flow of the present invention.
1-a main controller, 2-a smoke alarm, 3-an isolation mechanism, 4-a storage battery, 5-a power device, 6-a flexible isolation door, 7-a first motor, 8-an output gear, 9-a rotating shaft, 10-a clamping mechanism, 11-a tooth part, 12-a second motor, 13-a transmission gear, 14-a clamping piece, 15-a first limiting plate, 16-a first sliding frame, 17-a toothed rod, 18-a second limiting plate, 19-a sinking plate, 20-a buffer layer, 21-a fireproof frame, 22-a fireproof box, 23-a first placing plate, 24-a second placing plate, 25-a fire extinguishing device, 26-a water storage box, 27-a shunt body, 28-a water outlet pipe, 29-a third motor, 30-a rotating gear, 31-tooth block, 32-second sliding frame, 33-baffle.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 6, the present invention provides a multifunctional automatic fire fighting system, including a main controller 1, a smoke alarm 2, an isolation mechanism 3 and a storage battery 4, where the isolation mechanism 3 includes a power device 5 and a flexible isolation door 6, the power device 5 includes two first motors 7, two output gears 8, a rotating shaft 9 and two retaining mechanisms 10, the rotating shaft 9 is fixedly connected to the flexible isolation door 6 and is located at one end of the flexible isolation door 6 away from the ground, two ends of the rotating shaft 9 are both provided with tooth portions 11, each first motor 7 is fixedly connected to the wall surface and is located at two sides of the flexible isolation door 6, an output end of each first motor 7 is provided with one output gear 8, each output gear 8 is engaged with one tooth portion 11, each first motor 7 is electrically connected to a market power supply, each of the holding mechanisms 10 comprises a second motor 12, a transmission gear 13 and a holding member 14, the second motor 12 is fixedly connected with the wall surface, and are positioned at two sides of the flexible isolating door 6 and below the first motor 7, the output end of each second motor 12 is sleeved with the transmission gear 13, the transmission gear 13 is meshed with the retaining piece 14, one end of the flexible isolating door 6 close to the ground is provided with a first limiting plate 15, the retaining member 14 corresponds to the first limiting plate 15, the smoke alarm is arranged on the top of the wall, the main controller 1 and the storage battery 4 are both arranged in a wall body, the signal output end of the smoke alarm 2 is connected with the signal input end of the main controller 1, the signal input end of the storage battery 4 is connected with the signal output end of the main controller 1, and the second motor 12 is electrically connected with the storage battery 4.
In this embodiment, the rotating shaft 9 is fixedly connected to the flexible isolation door 6, two ends of the rotating shaft 9 are respectively provided with a tooth portion 11, each first motor 7 is fixedly connected to a wall surface and located on two sides of the flexible isolation door 6, an output end of each first motor 7 is provided with one output gear 8, each output gear 8 is respectively engaged with one tooth portion 11, each first motor 7 is electrically connected to a power supply of a shopping mall, the second motor 12 is fixedly connected to the wall surface and located on two sides of the flexible isolation door 6 and located below the first motor 7, an output end of each second motor 12 is sleeved with the transmission gear 13, the transmission gear 13 is engaged with the clamping member 14, and one end of the flexible isolation door 6 close to the ground is provided with a first limiting plate 15, the clamping piece 14 corresponds to the first limiting plate 15, the smoke alarm is arranged on the top of a wall, the main controller 1 and the storage battery 4 are both arranged in the wall, the signal output end of the smoke alarm 2 is connected with the signal input end of the main controller 1, the signal input end of the storage battery 4 is connected with the signal output end of the main controller 1, the second motor 12 is electrically connected with the storage battery 4, the first motor 7 drives the rotating shaft 9 to rotate under normal conditions, so that the flexible isolating door 6 on the rotating shaft 9 is wound, the storage battery 4 supplies power to the second motor 12, the second motor 12 drives the transmission gear 13 to rotate, the clamping piece 14 is abutted against the first limiting plate 15, when a fire disaster occurs, the smoke alarm 2 transmits an alarm signal to the main controller 1, market power is closed, first motor 7 stop work, second motor 12 is in under the power supply of battery 4, through rotating drive gear 13 makes second limiting plate 18 with first limiting plate 15 separation, flexible isolation door 6 falls under the effect of self gravity, will catch fire regional seal to cut off the condition of a fire, reduce trade company's loss of property.
Further, the clamping member 14 includes a first sliding frame 16, a rack bar 17 and a second limiting plate 18, one end of the first sliding frame 16 is fixedly connected to the wall surface and is located above the second motor 12, the rack bar 17 is engaged with the transmission gear 13 and is located inside the first sliding frame 16, and the second limiting plate 18 is fixedly connected to the rack bar 17 and is located on one side of the rack bar 17 away from the wall surface.
In this embodiment, the rack bar 17 is fixedly connected to the second limiting plate 18, and is integrally formed during manufacturing, so that the structure is firmer, the second motor 12 drives the transmission gear 13 to rotate, thereby driving the rack bar 17 to move, and the second limiting plate 18 abuts against the first limiting plate 15.
Further, the multifunctional automatic fire-fighting system further comprises a sinking plate 19, wherein the sinking plate 19 is fixedly connected with the flexible isolation door 6 and is positioned at one end, far away from the isolation mechanism 3, of the flexible isolation door 6.
In this embodiment, sunken board 19's weight is heavier, and the condition of a fire comes temporarily, second motor 12 takes to second limiting plate 18 with first limiting plate 15 separates the back sunken board 19 self under the action of gravity, make flexible isolation door 6 is quick more keep apart the condition of a fire, reduces the loss.
Further, multi-functional automatic fire extinguishing system still includes buffer layer 20 and fire prevention frame 21, fire prevention frame 21 with sunken board 19 fixed connection, and be located sunken board 19 is kept away from the one end of flexible insulated door 6, buffer layer 20 with sunken board 19 fixed connection, and be located sunken board 19 is kept away from the one end of flexible insulated door 6, and is located the inside of fire prevention frame 21.
In this embodiment, when the buffer layer 20 makes the sinking plate 19 descend rapidly, a part of the impact force is reduced, so that the loss of the flexible isolation door 6 is reduced, and the fireproof frame 21 is placed on the buffer layer 20 and cannot be burnt.
Further, multi-functional automatic fire extinguishing system still includes fire prevention case 22, fire prevention case 22 and wall fixed connection to be located the one end on ground is kept away from to flexible insulated door 6, isolation mechanism 3 is located the inside of fire prevention case 22.
In this embodiment, the fire resistant enclosure 22 protects the isolation mechanism 3 from being burned by fire.
Further, a first placing plate 23 and a second placing plate 24 are provided inside the fire resistant box 22, the first motor 7 is screwed to the first placing plate 23 and located above the first placing plate 23, and the second motor 12 is screwed to the second placing plate 24 and located above the second placing plate 24.
In this embodiment, the first motor 7 is connected to a wall surface through the first placing plate 23, and the second motor 12 is connected to the wall surface through the second placing plate 24, so that the operation is more convenient during installation and maintenance.
Further, multi-functional automatic fire extinguishing systems still includes extinguishing device 25, extinguishing device 25 includes water storage box 26, reposition of redundant personnel 27 and a plurality of outlet pipe 28, water storage box 26 is located the inside of wall body, water storage box 26 is provided with the delivery port, reposition of redundant personnel 27 with water storage box 26 fixed connection, and with the delivery port is corresponding, and is a plurality of outlet pipe 28 all with reposition of redundant personnel 27 is kept away from the one end fixed connection of delivery port, and evenly distributed is in around reposition of redundant personnel 27.
In this embodiment, through smoke alarm 2 transmits for 1 alarm signal of master controller, battery 4 drives second motor 12 rotates, makes when flexible isolation door 6 keeps apart the condition of a fire, water in the water storage box 26 passes through the delivery port, the flow direction shunt body 27 is put out a fire through a plurality of outlet pipe 28 is to the isolation region to delay the development of the condition of a fire, reduce the loss of trade company.
Further, extinguishing device 25 still includes control mechanism, control mechanism includes third motor 29, rotating gear 30, tooth piece 31, second sliding frame 32 and baffle 33, third motor 29 with divide fluid 27 fixed connection, and be located divide the top of fluid 27, divide the inside of fluid 27 to be provided with second sliding frame 32, tooth piece 31 is located the inside of second sliding frame 32, the output pot head of third motor 29 is equipped with rotating gear 30, rotating gear 30 with tooth piece 31 meshes, baffle 33 with tooth piece 31 fixed connection, and be located in the water storage box 26, and with the delivery port is corresponding, third motor 29 with battery 4 electric connection.
In this embodiment, after the master controller 1 receives the alarm signal, the storage battery 4 supplies power to the third motor 29, the third motor 29 is driven by the rotating gear 30, and the tooth block 31 moves to make the baffle 33 far away from the water outlet, so that the water in the water storage tank 26 flows from the water outlet to the flow dividing body 27.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A multifunctional automatic fire-fighting system, which is characterized in that,
the intelligent smoke alarm comprises a master controller, a smoke alarm, an isolation mechanism and a storage battery, wherein the isolation mechanism comprises a power device and a flexible isolation door, the power device comprises two first motors, two output gears, a rotating shaft and two clamping mechanisms, the rotating shaft is fixedly connected with the flexible isolation door and is positioned at one end, far away from the ground, of the flexible isolation door, both ends of the rotating shaft are respectively provided with a tooth part, each first motor is fixedly connected with the wall surface and is positioned at both sides of the flexible isolation door, the output end of each first motor is provided with one output gear, each output gear is respectively meshed with one tooth part, each first motor is electrically connected with a power supply of a shopping mall, each clamping mechanism comprises a second motor, a transmission gear and a clamping piece, and the second motor is fixedly connected with the wall surface, the smoke alarm device is arranged on the top of a wall, the main controller and the storage battery are arranged in the wall, the signal output end of the smoke alarm device is connected with the signal input end of the main controller, the signal input end of the storage battery is connected with the signal output end of the main controller, and the second motor is electrically connected with the storage battery;
the multifunctional automatic fire-fighting system also comprises a fire extinguishing device, wherein the fire extinguishing device comprises a water storage tank, a flow dividing body and a plurality of water outlet pipes, the water storage tank is positioned inside a wall body, the water storage tank is provided with a water outlet, the flow dividing body is fixedly connected with the water storage tank and corresponds to the water outlet, and the plurality of water outlet pipes are all fixedly connected with one end of the flow dividing body, which is far away from the water outlet, and are uniformly distributed around the flow dividing body;
the fire extinguishing device further comprises a control mechanism, the control mechanism comprises a third motor, a rotating gear, a tooth block, a second sliding frame and a baffle, the third motor is fixedly connected with the branch fluid and is located above the branch fluid, the inside of the branch fluid is provided with the second sliding frame, the tooth block is located inside the second sliding frame, the output end of the third motor is sleeved with the rotating gear, the rotating gear is meshed with the tooth block, the baffle is fixedly connected with the tooth block and is located in the water storage box, and the water outlet is corresponding to the water outlet, and the third motor is electrically connected with the storage battery.
2. The multifunctional automated fire fighting system of claim 1,
the multifunctional automatic fire-fighting system further comprises a sinking plate, wherein the sinking plate is fixedly connected with the flexible isolation door and is positioned at one end, far away from the isolation mechanism, of the flexible isolation door.
3. The multifunctional automated fire fighting system of claim 2,
the multifunctional automatic fire-fighting system further comprises a buffer layer and a fire-fighting frame, wherein the fire-fighting frame is fixedly connected with the sinking plate and is located at one end of the flexible isolation door, the buffer layer is fixedly connected with the sinking plate and is located at one end of the flexible isolation door, and the sinking plate is located at one end of the flexible isolation door and is located inside the fire-fighting frame.
4. The multifunctional automated fire fighting system of claim 1,
the multifunctional automatic fire fighting system further comprises a fire box, the fire box is fixedly connected with the wall surface and located at one end, far away from the ground, of the flexible isolation door, and the isolation mechanism is located inside the fire box.
5. The multifunctional automated fire fighting system of claim 4,
the fireproof box is characterized in that a first placing plate and a second placing plate are arranged inside the fireproof box, the first motor is in threaded connection with the first placing plate and is located above the first placing plate, and the second motor is in threaded connection with the second placing plate and is located above the second placing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011116855.2A CN112221038B (en) | 2020-10-19 | 2020-10-19 | Multifunctional automatic fire fighting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011116855.2A CN112221038B (en) | 2020-10-19 | 2020-10-19 | Multifunctional automatic fire fighting system |
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| CN112221038A CN112221038A (en) | 2021-01-15 |
| CN112221038B true CN112221038B (en) | 2022-04-08 |
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| CN202011116855.2A Active CN112221038B (en) | 2020-10-19 | 2020-10-19 | Multifunctional automatic fire fighting system |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWM385597U (en) * | 2010-04-07 | 2010-08-01 | China Steel Corp | Anti-falling safety device of electric rolling door |
| TW201408860A (en) * | 2012-08-31 | 2014-03-01 | zhong-xian Xie | Roller shutter mechanism with functions of fire proof, smoke proof, and escape |
| CN106761349B (en) * | 2016-12-01 | 2018-05-25 | 重庆金华兴门业有限公司 | A kind of safety door |
| CN207212178U (en) * | 2017-08-16 | 2018-04-10 | 深圳市宝盾门业科技有限公司 | A kind of triggering fire resistance rolling shutter door certainly |
| CN208552910U (en) * | 2018-04-17 | 2019-03-01 | 郑州大学 | A kind of novel flexible fire resisting shutter |
| CN210033221U (en) * | 2019-01-28 | 2020-02-07 | 上海华岑建材有限公司 | Outer sunshade shading wind-proof roller shutter |
| CN110182277A (en) * | 2019-05-13 | 2019-08-30 | 盐城品迅智能科技服务有限公司 | A kind of the material binding mechanism and picking fixing means of tubing loading floor truck |
| CN210977242U (en) * | 2019-07-30 | 2020-07-10 | 江西三星阿兰德科技有限公司 | Stable rolling door machine brake structure |
| CN210858500U (en) * | 2019-09-30 | 2020-06-26 | 衢州瑞泰门控科技有限公司 | Electric smoke-blocking vertical wall protective cover |
| CN210866845U (en) * | 2019-12-03 | 2020-06-26 | 常州百鸿电器有限公司 | Fireproof power distribution cabinet |
| CN211549541U (en) * | 2020-01-15 | 2020-09-22 | 漳州艾达机电设备有限公司 | Fire prevention rolling slats door machine with damper |
| CN111764809A (en) * | 2020-08-18 | 2020-10-13 | 黄族辉 | Self-triggering system of fireproof roller shutter |
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Address after: Room 302-1, No. 12 Bianzhong East Road, Chengqiao Street, Liuhe District, Nanjing City, Jiangsu Province, 210000 Patentee after: Zhongtongan Construction Group Co.,Ltd. Country or region after: China Address before: 211504 room 302-1, 12 Bianzhong East Road, Chengqiao street, Liuhe District, Nanjing City, Jiangsu Province Patentee before: Nanjing Zhongtong Fire Technology Co.,Ltd. Country or region before: China |