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CN110847778A - Marine electric fireproof door - Google Patents

Marine electric fireproof door Download PDF

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Publication number
CN110847778A
CN110847778A CN201911042442.1A CN201911042442A CN110847778A CN 110847778 A CN110847778 A CN 110847778A CN 201911042442 A CN201911042442 A CN 201911042442A CN 110847778 A CN110847778 A CN 110847778A
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CN
China
Prior art keywords
door
door leaf
fire
door frame
synchronous belt
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
Application number
CN201911042442.1A
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Chinese (zh)
Inventor
李洪聪
蒋恒深
丁平
吴朋朋
赵瑞芳
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Wuxi Haihe Equipment Technology Ltd
Original Assignee
Wuxi Hongmeng Marine Technology Co Ltd
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Publication date
Application filed by Wuxi Hongmeng Marine Technology Co Ltd filed Critical Wuxi Hongmeng Marine Technology Co Ltd
Priority to CN201911042442.1A priority Critical patent/CN110847778A/en
Publication of CN110847778A publication Critical patent/CN110847778A/en
Pending legal-status Critical Current

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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
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/161—Profile members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
    • 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
    • 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
    • E06B7/30—Peep-holes; Devices for speaking through; Doors having windows

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Special Wing (AREA)

Abstract

本发明涉及一种移门，具体说是船用电动防火门。它包括支撑板，支撑板上有门洞，门洞的四周有门框，门框的上方有导柱，导柱的底部连接有门页。所述门页对应的那个门框侧壁的四周有沿门框周向布置的防火圈。其特点是门页与导柱间有同步带传动机构。同步带传动机构包括与导柱侧壁相连的从动带轮和主动带轮，从动带轮和主动带轮与导柱间均呈转动状配合，从动带轮与主动带轮的高度相同，且二者间呈平行并排布置，从动带轮与主动带轮间套连有同步带，同步带上固定有安装块，安装块的下部与门页相固连。所述主动带轮连接有驱动电机，驱动电机电气连接有控制器。该防火门的重量较小，能耗较少。

Figure 201911042442

The invention relates to a sliding door, in particular to a marine electric fire door. It comprises a support plate, a door hole is arranged on the support plate, a door frame is arranged around the door hole, a guide post is arranged above the door frame, and a door leaf is connected to the bottom of the guide post. Fire rings arranged along the circumferential direction of the door frame are arranged around the side wall of the door frame corresponding to the door leaf. Its characteristic is that there is a synchronous belt transmission mechanism between the door leaf and the guide column. The synchronous belt transmission mechanism includes a driven pulley and a driving pulley that are connected to the side wall of the guide column. The driven pulley and the driving pulley are all rotating with the guide column. The height of the driven pulley and the driving pulley is the same. , and the two are arranged in parallel and side by side, a synchronous belt is sleeved between the driven pulley and the driving pulley, a mounting block is fixed on the synchronous belt, and the lower part of the mounting block is fixedly connected with the door leaf. The driving pulley is connected with a driving motor, and the driving motor is electrically connected with a controller. The fire door is lighter in weight and consumes less energy.

Figure 201911042442

Description

一种船用电动防火门A marine electric fire door

技术领域technical field

本发明涉及一种移门，具体说是安装在各类船舶上的船用电动防火门。The invention relates to a sliding door, in particular to a marine electric fire door installed on various ships.

背景技术Background technique

目前，行业内使用的防火门包括竖向布置的门框，门框的上方有水平布置的导柱，导柱的纵向与支撑板平行，导柱的底部连接有门页，门页与导柱间呈沿导柱的纵向活动状配合。门页与导柱间有用于推动门页移动的驱动油缸，驱动油缸连接有液压系统。所述门页对应的那个门框侧壁的四周有沿门框周向布置的防火圈。这种防火门为液压移门，需要配备液压系统，液压系统中需要有大量的液压油，导致整个防火门的重量较大。而且，液压系统运行时能耗较高。At present, the fire doors used in the industry include a vertically arranged door frame, a horizontally arranged guide column above the door frame, the longitudinal direction of the guide column is parallel to the support plate, the bottom of the guide column is connected with a door leaf, and the door leaf and the guide column are arranged in a vertical direction. Fitting in the longitudinal direction of the guide column. Between the door leaf and the guide post, there is a driving oil cylinder for pushing the door leaf to move, and the driving oil cylinder is connected with a hydraulic system. Fire rings arranged along the circumferential direction of the door frame are arranged around the side wall of the door frame corresponding to the door leaf. This kind of fire door is a hydraulic sliding door, which needs to be equipped with a hydraulic system, and a large amount of hydraulic oil is required in the hydraulic system, resulting in a large weight of the entire fire door. Moreover, the hydraulic system consumes a lot of energy during operation.

发明内容SUMMARY OF THE INVENTION

本发明要解决的技术问题是提供一种船用电动防火门，该防火门的重量较小，能耗较少。The technical problem to be solved by the present invention is to provide a marine electric fire door, which has less weight and less energy consumption.

为解决上述问题，提供以下技术方案：To solve the above problems, the following technical solutions are provided:

本发明的船用电动防火门包括竖向布置的支撑板，支撑板上有门洞，门洞的四周有门框，门框上方的支撑板上有水平布置的导柱，导柱的纵向与支撑板平行，导柱的底部连接有门页，门页与导柱间呈沿导柱的纵向活动状配合。所述门页对应的那个门框侧壁的四周有沿门框周向布置的防火圈。其特点是所述门页与导柱间有同步带传动机构。所述同步带传动机构包括与导柱侧壁相连的从动带轮和主动带轮，从动带轮和主动带轮与导柱间均呈转动状配合，从动带轮与主动带轮的高度相同，且二者间呈平行并排布置，从动带轮与主动带轮间套连有同步带，同步带上固定有安装块，安装块的下部与门页相固连。所述主动带轮连接有驱动电机，驱动电机电气连接有控制器。The marine electric fire door of the present invention comprises a vertically arranged support plate, a door hole on the support plate, a door frame around the door hole, a horizontally arranged guide post on the support plate above the door frame, the longitudinal direction of the guide post is parallel to the support plate, and the guide post is parallel to the support plate. The bottom of the column is connected with a door leaf, and the door leaf and the guide post are in a movable fit along the longitudinal direction of the guide post. Fire rings arranged along the circumferential direction of the door frame are arranged around the side wall of the door frame corresponding to the door leaf. It is characterized in that there is a synchronous belt transmission mechanism between the door leaf and the guide post. The synchronous belt transmission mechanism includes a driven pulley and a driving pulley connected to the side wall of the guide column. The height is the same, and the two are arranged in parallel and side by side. A synchronous belt is sleeved between the driven pulley and the driving pulley. The synchronous belt is fixed with a mounting block, and the lower part of the mounting block is fixedly connected with the door leaf. The driving pulley is connected with a drive motor, and the drive motor is electrically connected with a controller.

其中，所述门页和门框均呈中空状，门页内腔的顶部、底部和两侧均覆盖有防火板，靠近门页的门框一侧的内壁上覆盖有防火板，门页和门框中均填充有耐火陶瓷棉。The door leaf and the door frame are both hollow, the top, bottom and both sides of the inner cavity of the door leaf are covered with fireproof boards, and the inner wall of the door frame side close to the door leaf is covered with fireproof boards, and the door leaf and the door frame are covered with fireproof boards. All filled with refractory ceramic wool.

所述门页的上部有防火玻璃窗。The upper part of the door leaf is provided with a fireproof glass window.

所述门页的下部有消防口，消防口上有挡板。The lower part of the door leaf is provided with a fire outlet, and a baffle plate is arranged on the fire outlet.

所述同步带传动机构的外侧覆盖有防火罩，所述同步带为耐高温同步带。The outer side of the synchronous belt transmission mechanism is covered with a fireproof cover, and the synchronous belt is a high temperature resistant synchronous belt.

所述门页的前竖边上有防夹开关，防夹开关与所述控制器间呈电气连接。An anti-pinch switch is arranged on the front vertical edge of the door leaf, and the anti-pinch switch is electrically connected with the controller.

所述门页对应的那个门框侧壁上有沿门框周向布置的环形凹槽，环形凹槽内有密封圈，密封圈的一侧从环形凹槽的口部伸出。所述防火圈有两个，它们分为位于环形凹槽两侧的门框上。The side wall of the door frame corresponding to the door leaf is provided with an annular groove arranged along the circumferential direction of the door frame, a sealing ring is arranged in the annular groove, and one side of the sealing ring protrudes from the mouth of the annular groove. There are two fire rings, which are divided into the door frames on both sides of the annular groove.

采取以上方案，具有以下优点：The above scheme has the following advantages:

由于本发明的船用电动防火门的门页与导柱间有同步带传动机构，同步带传动机构包括与导柱侧壁相连的从动带轮和主动带轮，从动带轮与主动带轮间套连有同步带，同步带上固定有安装块，安装块的下部与门页相固连，主动带轮连接有驱动电机，驱动电机电气连接有控制器。这种电动防火门利用电机带动同步带驱动门页进行开闭，同步带系统与背景技术中液压系统相比，无需液压油，从而大大降低了整个防火门的重量。而且，电机驱动与液压驱动相比，能耗较低。Because there is a synchronous belt transmission mechanism between the door leaf and the guide column of the marine electric fire door of the present invention, the synchronous belt transmission mechanism includes a driven pulley and a driving pulley connected to the side wall of the guide column. The driven pulley and the driving pulley A synchronous belt is connected to the intermediate sleeve, a mounting block is fixed on the synchronous belt, the lower part of the mounting block is fixedly connected with the door leaf, the driving pulley is connected with a driving motor, and the driving motor is electrically connected with a controller. This electric fire door uses a motor to drive a synchronous belt to drive the door leaf to open and close. Compared with the hydraulic system in the prior art, the synchronous belt system does not require hydraulic oil, thereby greatly reducing the weight of the entire fire door. Moreover, the electric motor drive consumes less energy than the hydraulic drive.

附图说明Description of drawings

图1是本发明的船用电动防火门的结构示意图；Fig. 1 is the structural representation of the marine electric fire door of the present invention;

图2是图1在省略门框和支撑板后的A-A向剖视示意图；Fig. 2 is the A-A sectional schematic diagram after omitting the door frame and the support plate of Fig. 1;

图3是图1在省略支撑板后的B-B向剖视示意图；Fig. 3 is the B-B sectional schematic diagram after omitting the support plate of Fig. 1;

图4是本发明的船用电动防火门在防火罩处于分解状态下的立体示意图。4 is a perspective view of the marine electric fire door of the present invention when the fire cover is in a disassembled state.

具体实施方式Detailed ways

以下结合附图对本发明做进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings.

如图1~4所示，本发明的船用电动防火门包括竖向布置的支撑板1，支撑板1上有门洞6，门洞6的四周有门框5，门框5上方的支撑板1上有水平布置的导柱8，导柱8的纵向与支撑板1平行，导柱8的底部连接有门页3，门页3与导柱8间呈沿导柱8的纵向活动状配合。所述门页3对应的那个门框5侧壁的四周有沿门框5周向布置的防火圈17。所述门页3与导柱8间有同步带传动机构。所述同步带传动机构包括与导柱8侧壁相连的从动带轮11和主动带轮9，从动带轮11和主动带轮9与导柱8间均呈转动状配合，从动带轮11与主动带轮9的高度相同，且二者间呈平行并排布置，从动带轮11与主动带轮9间套连有同步带13，同步带13上固定有安装块12，安装块12的下部与门页3相固连。所述主动带轮9连接有驱动电机10，驱动电机10电气连接有控制器。As shown in Figures 1 to 4, the marine electric fire door of the present invention includes a vertically arranged support plate 1, the support plate 1 has a door hole 6, the door frame 5 is arranged around the door hole 6, and the support plate 1 above the door frame 5 has a horizontal The guide post 8 is arranged. The longitudinal direction of the guide post 8 is parallel to the support plate 1 . The bottom of the guide post 8 is connected with a door leaf 3 . Fire rings 17 arranged along the circumferential direction of the door frame 5 are arranged around the side wall of the door frame 5 corresponding to the door leaf 3 . There is a synchronous belt transmission mechanism between the door leaf 3 and the guide column 8 . The synchronous belt transmission mechanism includes a driven pulley 11 and a driving pulley 9 which are connected to the side wall of the guide column 8. The driven pulley 11 and the driving pulley 9 and the guide column 8 cooperate in a rotating manner. The height of the pulley 11 and the driving pulley 9 are the same, and the two are arranged in parallel side by side. The lower part of 12 is fixedly connected with door leaf 3. The driving pulley 9 is connected with a driving motor 10, and the driving motor 10 is electrically connected with a controller.

为了提高防火效果，所述门页3和门框5均呈中空状，门页3内腔的顶部、底部和两侧均覆盖有防火板14，靠近门页3的门框5一侧的内壁上覆盖有防火板14，门页3和门框5中均填充有耐火陶瓷棉15。In order to improve the fire prevention effect, the door leaf 3 and the door frame 5 are both hollow, the top, bottom and both sides of the inner cavity of the door leaf 3 are covered with fireproof boards 14, and the inner wall of the door frame 5 side of the door leaf 3 is covered with There is a fireproof board 14, and the door leaf 3 and the door frame 5 are filled with refractory ceramic wool 15.

为了便于观察，所述门页3的上部有防火玻璃窗4。In order to facilitate observation, the upper part of the door leaf 3 is provided with a fireproof glass window 4 .

为了便于消防，所述门页3的下部有消防口，消防口上有挡板7。In order to facilitate fire fighting, the lower part of the door leaf 3 is provided with a fire outlet, and there is a baffle plate 7 on the fire outlet.

为了保护同步带传动机构，所述同步带传动机构的外侧覆盖有防火罩2，所述同步带13为耐高温同步带13。In order to protect the timing belt transmission mechanism, the outer side of the timing belt transmission mechanism is covered with a fireproof cover 2 , and the timing belt 13 is a high temperature resistant timing belt 13 .

为了防止出现夹伤人的意外，所述门页3的前竖边上有防夹开关18，防夹开关18与所述控制器间呈电气连接。In order to prevent the accident of pinching people, an anti-pinch switch 18 is provided on the front vertical edge of the door leaf 3, and the anti-pinch switch 18 is electrically connected to the controller.

为了进一步提高防火效果，所述门页3对应的那个门框5侧壁上有沿门框5周向布置的环形凹槽，环形凹槽内有密封圈16，密封圈16的一侧从环形凹槽的口部伸出。所述防火圈17有两个，它们分为位于环形凹槽两侧的门框5上。In order to further improve the fire prevention effect, the side wall of the door frame 5 corresponding to the door leaf 3 has an annular groove arranged along the circumferential direction of the door frame 5, and there is a sealing ring 16 in the annular groove, and one side of the sealing ring 16 extends from the annular groove mouth protruding. There are two fire rings 17, which are divided into the door frames 5 on both sides of the annular groove.

本发明的电动防火门利用电机带动同步带13驱动门页3进行开闭，同步带13系统与背景技术中液压系统相比，无需液压油，从而大大降低了整个防火门的重量。而且，电机驱动与液压驱动相比，能耗较低。在关门时，一旦有人通过，碰到防夹开关18后，防夹开关18被压缩，控制器立即控制电机反转，门会立刻打开，避免事故发生。The electric fire door of the present invention uses the motor to drive the synchronous belt 13 to drive the door leaf 3 to open and close. Compared with the hydraulic system in the background art, the synchronous belt 13 system does not require hydraulic oil, thereby greatly reducing the weight of the entire fire door. Moreover, the electric motor drive consumes less energy than the hydraulic drive. When the door is closed, once someone passes through and touches the anti-pinch switch 18, the anti-pinch switch 18 is compressed, the controller immediately controls the motor to reverse, and the door opens immediately to avoid accidents.

Claims (7)

1. The marine electric fireproof door comprises a supporting plate (1) which is vertically arranged, wherein a door opening (6) is formed in the supporting plate (1), a door frame (5) is arranged on the periphery of the door opening (6), a guide pillar (8) which is horizontally arranged is arranged on the supporting plate (1) above the door frame (5), the longitudinal direction of the guide pillar (8) is parallel to the supporting plate (1), a door leaf (3) is connected to the bottom of the guide pillar (8), and the door leaf (3) is movably matched with the guide pillar (8) in the longitudinal direction; the periphery of the side wall of the door frame (5) corresponding to the door leaf (3) is provided with a fire collar (17) which is arranged along the circumferential direction of the door frame (5); it is characterized in that a synchronous belt transmission mechanism is arranged between the door leaf (3) and the guide post (8); the synchronous belt transmission mechanism comprises a driven belt wheel (11) and a driving belt wheel (9) which are connected with the side wall of the guide pillar (8), the driven belt wheel (11), the driving belt wheel (9) and the guide pillar (8) are in rotating fit, the driven belt wheel (11) and the driving belt wheel (9) are the same in height and are arranged in parallel, a synchronous belt (13) is sleeved between the driven belt wheel (11) and the driving belt wheel (9), a mounting block (12) is fixed on the synchronous belt (13), and the lower part of the mounting block (12) is fixedly connected with the door leaf (3); the driving belt wheel (9) is connected with a driving motor (10), and the driving motor (10) is electrically connected with a controller.
2. Marine electric fireproof door according to claim 1, wherein the door leaf (3) and the door frame (5) are hollow, the top, bottom and both sides of the inner cavity of the door leaf (3) are covered with fireproof plates (14), the inner wall of the door frame (5) near the door leaf (3) is covered with fireproof plates (14), and the door leaf (3) and the door frame (5) are filled with fireproof ceramic wool (15).
3. Marine electrically operated fire door according to claim 1, characterised in that the upper part of the door leaf (3) is provided with a fire-resistant glass window (4).
4. Marine fire door according to claim 1, characterised in that the lower part of the leaf (3) is provided with a fire opening, which is provided with a flap (7).
5. Marine electric fireproof door according to claim 1, characterised in that the synchronous belt drive mechanism is covered with a fireproof cover (2) on the outside, and the synchronous belt (13) is a high temperature resistant synchronous belt (13).
6. Marine electrically operated fire door according to claim 1, characterised in that the front vertical edge of the door leaf (3) is provided with an anti-pinch switch (18), the anti-pinch switch (18) being electrically connected to the control.
7. Marine electric fireproof door according to any one of claims 1 to 5, characterized in that the side wall of the door frame (5) corresponding to the door leaf (3) is provided with an annular groove arranged along the circumferential direction of the door frame (5), a sealing ring (16) is arranged in the annular groove, and one side of the sealing ring (16) extends out of the opening of the annular groove; the number of the fire collars (17) is two, and the fire collars are divided into two door frames (5) positioned on two sides of the annular groove.
CN201911042442.1A 2019-10-30 2019-10-30 Marine electric fireproof door Pending CN110847778A (en)

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Application Number Priority Date Filing Date Title
CN201911042442.1A CN110847778A (en) 2019-10-30 2019-10-30 Marine electric fireproof door

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Application Number Priority Date Filing Date Title
CN201911042442.1A CN110847778A (en) 2019-10-30 2019-10-30 Marine electric fireproof door

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CN201911042442.1A Pending CN110847778A (en) 2019-10-30 2019-10-30 Marine electric fireproof door

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687308A (en) * 2017-10-24 2018-02-13 宁波欧尼克科技有限公司 A kind of new airtight automatically-controlled door
CN109386215A (en) * 2018-11-06 2019-02-26 无锡德林防务装备股份有限公司 A kind of sound insulated fire door
CN211736944U (en) * 2019-10-30 2020-10-23 无锡宏盟海洋科技有限公司 Marine electric fireproof door

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687308A (en) * 2017-10-24 2018-02-13 宁波欧尼克科技有限公司 A kind of new airtight automatically-controlled door
CN109386215A (en) * 2018-11-06 2019-02-26 无锡德林防务装备股份有限公司 A kind of sound insulated fire door
CN211736944U (en) * 2019-10-30 2020-10-23 无锡宏盟海洋科技有限公司 Marine electric fireproof door

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