CN214838466U

CN214838466U - Marine fire prevention air brake device of institutional advancement

Info

Publication number: CN214838466U
Application number: CN202120813964.3U
Authority: CN
Inventors: 钱文华; 支英超; 陈凯恩; 谭晓璐; 钱文东; 胡慕荣; 施秋明
Original assignee: Changshu Haixin Ship Machinery Manufacture Co ltd
Current assignee: Changshu Haixin Ship Machinery Manufacture Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-23
Anticipated expiration: 2031-04-19

Abstract

A structure-improved marine fireproof air brake device comprises a cylinder body, wherein a front end wind blocking seat of a flashboard is arranged on the front cavity wall of a cylinder body cavity, and a rear end wind blocking seat of the flashboard is arranged on the rear cavity wall; a linkage rod and a group of gate plates; the first flashboard limiting strip and the second flashboard limiting strip; the flashboard opening and closing pneumatic actuating mechanism is arranged on the outer wall of the barrel; the method is characterized in that: in the group of flashboards, the edge parts of the opposite sides of two adjacent flashboards form mutually compensated staggered matching structures with the thickness being half of that of the flashboards, and when the edge part of the flashboard panel of one flashboard extends out to press the adjacent flashboard panel pressing sealing wing of the edge part of the flashboard panel of the other flashboard to press the adjacent flashboard panel pressing sealing wing, the edge part of the flashboard bottom plate of the other flashboard extends out to press the adjacent flashboard bottom plate pressing sealing wing of the edge part of the flashboard bottom plate of one flashboard; the linkage rod is hinged with the flashboard panel. The self-sealing effect is good; all the shutters can be kept at the same level.

Description

Marine fire prevention air brake device of institutional advancement

Technical Field

The utility model belongs to the technical field of the boats and ships component, concretely relates to institutional advancement's marine fire prevention air brake device.

Background

The fire damper for ships is a common fire protection facility equipped on ships, is usually located between two fire protection areas, i.e. is usually arranged on two adjacent bulkheads of the ships, and is closed to reduce the oxygen content of the protected space (cut off the communication between the protected space and the outside atmosphere), isolate the fire source, cut off the spread of fire, and the like.

As is known in the art, shutters are important parts of the structural architecture of fire dampers, and are generally required to have a severe fire rating, for example, when tested in some form according to the corresponding standard requirements, not to allow deformation and not to allow a temperature rise within a specified reasonable time or not to exceed a specified value.

In the published chinese patent literature, it is seen that technical information related to marine fire protection fans, for example, CN207161811U recommends a "new fire protection damper", and the specific structure of the patent can be referred to in paragraph 0013 of the specification, since the thermal insulation layer is provided in the interlayer of the shutter (called blade) described therein, it can be considered that the sandwich structure can exhibit good thermal insulation. For another example, CN205007479U provides a "sealing device for a fire damper for a ship", which is substantially a sealing strip formed by silicone rubber, and the sealing strip is adhered to the upper and lower sides of the damper when in use, and after the damper is rotated to a closed state, the sealing cavities on the two sides of the sealing strip can effectively seal the gap between the damper and the mounting frame, as described in paragraphs 0007 and paragraphs 0015 to 0017 of the specification of CN 205007479U.

From a reading of the patent literature, which is not limited to the above examples: although both patents are addressed to improve the fire, thermal and/or sealing properties of the shutter, there are the following general disadvantages: since a group of gate plates is opened or closed (i.e. closed) under the action of the linkage pull rod, and since the gap between the two adjacent gate plates in the length direction is unavoidable, only the difference of the gap size is enough, neither of the two patents can achieve the desired closing and sealing effect between the gate plates when the fireproof air gate is in the closed state, and the technical proposal to be described below is generated under the background.

Disclosure of Invention

The utility model aims at providing a help being in the flash disk under the closure state and enabling the length direction's of each double-phase adjacent flash disk marginal position form crisscross each other and can embody good self sealss effect, be favorable to not only can make all flashboards fully keep in same horizontal plane under the closure state but also can play the marine fire prevention air brake device of institutional advancement of excellent sealing effect to the clearance between each double-phase adjacent flash disk.

The task of the utility model is accomplished in this way, a marine fire prevention air brake device with improved structure, which comprises a cylinder body, wherein a front end wind shield seat of a flashboard is fixed on the front cavity wall of the cylinder body cavity of the cylinder body, and a rear end wind shield seat of the flashboard is fixed on the rear cavity wall of the cylinder body cavity of the cylinder body and at the position corresponding to the front end wind shield seat of the flashboard; the linkage rod is hinged with the group of gate plates, the thickness of the group of gate plates is the same, the front ends of the group of gate plates are pivotally supported on the front-end wind blocking seat of the gate plates, the rear ends of the group of gate plates are pivotally supported on the rear-end wind blocking seat of the gate plates, in the group of gate plates, a gate plate at the middle position is used as a boundary, the number of the gate plates at the two sides of the gate plate at the middle position is equal to each other, and the length of the flashboards at the two sides is gradually shortened towards the cavity wall of the cylinder cavity in a mutually symmetrical state, the flashboard close to the cavity wall of the cylinder cavity has the shortest length and the shape is in a D shape, the group of flashboards respectively comprise a flashboard panel, a flashboard bottom plate and a heat insulation filling layer, wherein the two sides of the flashboard panel and the flashboard bottom plate in the length direction and the two ends of the flashboard bottom plate in the width direction are mutually jointed to form an integral structure, and the heat insulation filling layer is positioned in a space formed by the flashboard panel and the flashboard bottom plate; the first flashboard limiting strip I and the second flashboard limiting strip II are fixed on the cavity wall of the cylinder cavity at the position between the left ends of the flashboard front end wind shielding seat and the flashboard rear end wind shielding seat, and the second flashboard limiting strip II is also fixed on the cavity wall of the cylinder cavity at the position between the right ends of the flashboard front end wind shielding seat and the flashboard rear end wind shielding seat and corresponds to the first flashboard limiting strip I; the flashboard opening and closing pneumatic actuating mechanism is arranged on the outer wall of the barrel at a position corresponding to the front end of the middle flashboard in the group of flashboards and is connected with the front end of the middle flashboard; characterized in that in the group of flashboards, the edge parts of the opposite sides of the two adjacent flashboards in the length direction mutually form a staggered matching structure with the thickness of half of that of each flashboard and the thickness of each flashboard is mutually compensated, and when the edge part of the flashboard panel in the length direction of one flashboard extends out of the adjacent flashboard panel pressing sealing wing which is pressed to the edge part of the flashboard panel of the other flashboard on the opposite side of each two adjacent flashboards, the edge part of the flashboard bottom plate in the length direction of the other flashboard extends out of the adjacent flashboard bottom plate pressing sealing wing which is pressed to the edge part of the flashboard bottom plate of one flashboard; the linkage rod is hinged with the flashboard panel.

In a particular embodiment of the present invention, the front end of the shutter is provided with a shutter front end pivot sleeve equal in number to the group of shutters, and the rear end of the shutter is provided with a shutter rear end pivot sleeve equal in number to the group of shutters, the front end of the group of shutters is pivotally supported on the shutter front end pivot sleeve, and the rear end of the group of shutters is pivotally supported on the shutter rear end pivot sleeve.

In another specific embodiment of the present invention, a shutter front end pivot shaft is fixed to each of the intermediate positions in the front end of the group of shutters and in the width direction through a shutter front end pivot shaft seat, the shutter front end pivot shaft is located in a position corresponding to the shutter front end pivot shaft sleeve and extends into the shutter front end pivot shaft sleeve to be pivotally fitted to the shutter front end pivot shaft sleeve in a state where the shutter front end pivot shaft bushing is added, and a shutter rear end pivot shaft is fixed to each of the intermediate positions in the rear end of the group of shutters and in the width direction through a shutter rear end pivot shaft seat, the shutter rear end pivot shaft is located in a position corresponding to the shutter rear end pivot shaft sleeve and extends into the shutter rear end pivot shaft sleeve to be pivotally fitted to the shutter rear end pivot shaft sleeve in a state where the shutter rear end pivot shaft bushing is added; the flashboard opening and closing pneumatic actuating mechanism is connected with the front end of the flashboard at the front end of the flashboard positioned in the middle of the flashboard in the group of flashboards in a pivoted mode.

In another specific embodiment of the present invention, a front end edge of the set of shutters is fixed below the front end edge of the set of shutters and along the width direction of the set of shutters, and a rear end edge of the set of shutters is fixed below the rear end edge of the set of shutters and along the width direction of the set of shutters, the front end edge of the shutters is matched with the bottom surface of the front end seat of the shutters, and the rear end edge of the shutters is matched with the bottom surface of the rear end seat of the shutters.

In another specific embodiment of the present invention, a gate plate hinge lug is fixed on the right side of the middle position of the length direction of the gate plate panel, and a linkage rod hinge lug is fixed on the linkage rod and at the position corresponding to the gate plate hinge lug, and the linkage rod hinge lug is hinged to the gate plate hinge lug through a linkage rod hinge trunnion.

In yet another specific embodiment of the present invention, the cylinder has a cylindrical structure and cylinder fixing flanges are formed at upper and lower portions of the cylinder, and fixing flange holes are formed at intervals on the cylinder fixing flanges.

In a more specific embodiment of the present invention, at the edge portion of the opposite side of the length direction of each two adjacent shutters, when one of the shutters constitutes a compensation boss gap having a half of the shutter thickness, the other shutter constitutes a compensation boss having a half of the shutter thickness, and the compensation boss gap and the compensation boss are matched with each other.

In yet another specific embodiment of the present invention, the directions in which the adjacent shutter panels force the sealing wings and the adjacent shutter base plates force the sealing wings are opposite to each other.

In a more specific embodiment of the present invention, the cross-sectional shapes of the adjacent gate panel pressing sealing wings and the adjacent gate bottom plate pressing sealing wings are both inverted v-shaped.

In yet another specific embodiment of the present invention, the gate panel and the gate bottom plate are made of thin steel plates with elasticity; the heat insulation filling layer is a rock wool layer, an asbestos layer or a glass fiber layer.

The technical scheme provided by the utility model the technical effect lie in: in one group of gate plates, the edge parts of the opposite sides of the two adjacent gate plates in the length direction form mutually-compensated staggered matching structures with the thickness being half of that of the gate plates, so that a good self-sealing effect can be embodied; when the edge of the gate panel of one of the two adjacent gates extends to the edge of the gate panel of the other gate to press against the sealing wing, the edge of the gate bottom plate of the other gate extends to the edge of the gate bottom plate of the other gate to press against the sealing wing, so that when one gate is closed, all gates are fully maintained on the same horizontal plane, and the gap between two adjacent gates is sealed.

Drawings

Fig. 1 is a schematic view of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged view of a portion B of fig. 2.

Fig. 4 is a schematic view of the set of shutters shown in fig. 1 and 2 in an open state.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, should not be interpreted as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1 to 3, there is shown a barrel 1, a shutter front end wind deflector 12 is fixed on a front cavity wall of a barrel cavity 11 of the barrel 1, and a shutter rear end wind deflector 13 is fixed on a rear cavity wall of the barrel cavity 11 of the barrel 1 and at a position corresponding to the shutter front end wind deflector 12; a linkage rod 2 and a group of gate plates 3 are shown, the linkage rod 2 is hinged with the group of gate plates 3, the thickness of the group of gate plates 3 is the same, the front ends of the gate plates are pivotally supported on the front-end wind shielding seats 12 of the gate plates, the rear ends of the gate plates are pivotally supported on the rear-end wind shielding seats 13 of the gate plates, in the above-mentioned group of gate plates 3, the gate plate located at the center is defined as a gate plate, the number of gate plates at both sides of the gate plate located at the center is equal to each other, and the length of the gate plates located at the two sides is shortened toward the cavity wall of the cylinder cavity 11 one by one in a mutually symmetrical state, and the gate plate close to the cavity wall of the cylinder cavity 11 has the shortest length and is in a D shape, as shown in FIG. 1, the embodiment takes five gate plates as an example, the middle gate plate is used as a boundary, the length of the gate plate is longest, and two gate plates with the same quantity are arranged on two sides. If the inner diameter of the cylinder chamber 11 is increased or the width of the group of gate plates 3 is respectively narrowed so that the number of the group of gate plates 3 is increased to seven, then the gate plate at the middle position is used as a boundary, three gate plates with the same number are respectively arranged at two sides, the lengths of the gate plates at the two sides are gradually shortened towards the direction of the cavity wall of the cylinder chamber 11 in a mutually symmetrical state, and the length of the gate plate close to the cavity wall of the cylinder chamber 11 is shortest and forms a D-shaped shape. Thus, it can be seen that: the front end and the rear end of the shutter 3 form a step shape with a length increasing from the outside to the middle (i.e., from both sides to the middle) to the same extent. The group of the gates 3 each include a gate panel 31, a gate bottom plate 32, and an insulating filler layer 33 (shown in fig. 3), the gate panel 31 and the gate bottom plate 32 are joined to each other at both sides in the longitudinal direction (left and right sides in the position state shown in fig. 1) and at both ends in the width direction (front and rear ends in the position state shown in fig. 1) to form an integral structure, and the insulating filler layer 33 is located in a space formed by the gate panel 31 and the gate bottom plate 32; a first flashboard limiting strip I4 a and a second flashboard limiting strip II 4b are shown, wherein the first flashboard limiting strip I4 a is fixed on the cavity wall of the cylinder cavity 11 at a position corresponding to a position between the left end of the flashboard front-end wind shielding seat 12 and the left end of the flashboard rear-end wind shielding seat 13, and the second flashboard limiting strip II 4b is also fixed on the cavity wall of the cylinder cavity 11 at a position corresponding to a position between the right end of the flashboard front-end wind shielding seat 12 and the right end of the flashboard rear-end wind shielding seat 13 and corresponds to the first flashboard limiting strip I4 a; and the flashboard opening and closing pneumatic actuator 5 is arranged on the outer wall of the barrel 1 at a position corresponding to the front end of the middle flashboard in the group of flashboards 3, and is connected with the front end of the middle flashboard.

Since the left edge of the first gate plate on the left side and the right edge of the second gate plate on the right side in the gate plate 3 are both arc-shaped (also referred to as "C-shaped"), the first gate plate limiting strip i 4a and the second gate plate limiting strip ii 4b are also arc-shaped (also referred to as "C-shaped"). Since the structure, action mechanism, etc. of the shutter opening and closing pneumatic actuator 5 illustrated in fig. 1 belong to the known technologies, for example, refer to the "new fire damper" recommended by chinese patent document CN207161811U and the "limit switch pneumatic actuator" provided by CN110131470A, etc., the applicant will briefly describe the following: the shutter opening and closing pneumatic actuator 5 is normally used in cooperation with an electromagnetic valve or the like, and when the pneumatic actuator is energized, compressed air drives the cylinder to move, so that the group of shutters 3 are rotated by 90 degrees to be opened, and before the shutters are opened, the automatic stop pin 6 shown in the figure is retreated from the shutters. When the power is lost, the air cylinder reversely rotates for 90 degrees, and the group of gate plates 3 are closed. Since the shutters 3 are closed in the air loss state, if the shutters 3 are to be opened, the opening operation is completed by manual driving, for example, by turning the cylinder by 90 ° with an operating handle. Fig. 1 and 3 show a state in which a group of shutters 3 is in a closed state.

Continuing to see fig. 1 to fig. 3, as the technical essential of the technical scheme that the utility model provides: in the group of the gates 3, the edge portions of the opposite sides in the length direction of each two adjacent gates form mutually-compensated staggered matching structures (shown in fig. 2 and 3) each having a thickness of one half of the thickness of the gate, and when the edge portion in the length direction of the gate panel 31 of one of the two adjacent gates extends out of the adjacent gate panel pressing sealing wing 311 pressed to the edge portion of the gate panel 31 of the other one of the two adjacent gates, the edge portion in the length direction of the gate bottom plate 32 of the other one of the two adjacent gates extends out of the adjacent gate bottom plate pressing sealing wing 321 pressed to the edge portion of the gate bottom plate 32 of the one of the two gates; the linkage rod 2 is hinged with the flashboard panel 31. The term "urging" means that the elastic force of the adjacent ram panel urging seal wing 311 of the ram panel 31 and the elastic force of the adjacent ram floor urging seal wing 321 of the ram floor 32 are respectively in contact with the adjacent ram panel 31 and the adjacent ram floor 32.

With attention to fig. 1, shutter front end pivot shaft sleeves 121 equal in number to the one group of shutters 3 are provided on the aforementioned shutter front end windshield 12 and at positions corresponding to the front ends of the aforementioned one group of shutters 3, while shutter rear end pivot shaft sleeves 131 also equal in number to the one group of shutters 3 are provided on the aforementioned shutter rear end windshield 13 and at positions corresponding to the rear ends of the aforementioned one group of shutters 3, the front ends of the aforementioned one group of shutters 3 being pivotally supported on the shutter front end pivot shaft sleeves 121, and the rear ends of the one group of shutters 3 being pivotally supported on the shutter rear end pivot shaft sleeves 131.

A shutter front end pivot shaft 34 is fixed to each of the front ends of the group of shutters 3 and at the widthwise central position thereof via a shutter front end pivot shaft base 341, the position of the shutter front end pivot shaft 34 corresponding to the shutter front end pivot shaft sleeve 121 and extending into the shutter front end pivot shaft sleeve 121 in a state of being fitted with the shutter front end pivot shaft bushing 342 to pivotally engage with the shutter front end pivot shaft sleeve 121, and a shutter rear end pivot shaft 35 is fixed to each of the rear ends of the group of shutters 3 and at the widthwise central position thereof via a shutter rear end pivot shaft base 351, the position of the shutter rear end pivot shaft 35 corresponding to the shutter rear end pivot shaft sleeve 131 and extending into the shutter rear end pivot shaft sleeve 131 in a state of being fitted with the shutter rear end pivot shaft bushing 352 to pivotally engage with the shutter rear end pivot shaft sleeve 131; the shutter opening/closing pneumatic actuator 5 is connected to the shutter front end pivot shaft 34 at the front end of the middle shutter of the group of shutters 3.

Continuing with fig. 1, a shutter front end sealing rib 36a is fixed below the front end edge portions of the aforementioned group of shutters 3 and along the width direction of the group of shutters 3, and a shutter rear end sealing rib 36b is fixed below the rear end edge portions of the group of shutters 3 and also along the width direction of the group of shutters 3, the shutter front end sealing rib 36a engaging with the bottom surface of the aforementioned shutter front end shutter base 12, and the shutter rear end sealing rib 36b engaging with the bottom surface of the aforementioned shutter rear end shutter base 13.

A shutter hinge lug 312 is fixed on the right side of the central position of the shutter panel 31 in the length direction, and a linkage rod hinge lug 21 is fixed on the linkage rod 2 and at the position corresponding to the shutter hinge lug 312, and the linkage rod hinge lug 21 is hinged with the shutter hinge lug 312 through a linkage rod hinge trunnion 211. Therefore, under the action of the linkage rod 2, a group of gate plates 3 can be opened or closed synchronously.

The applicant needs to state that: the number of the group of the shutters 3 is not limited to the illustrated number.

The cylindrical body 1 has a cylindrical structure, cylindrical body fixing flanges 14 are formed at upper and lower portions of the cylindrical body 1, fixing flange holes 141 are opened at intervals in the cylindrical body fixing flanges 14, and the cylindrical body 1 and the cabin partition wall are fixed by bolts at positions corresponding to the fixing flange holes 151 in use.

Referring to fig. 3, when one of the gate plates (for example, the left gate plate shown in fig. 3) has a compensation boss notch 37a with a thickness equal to one half of the gate plate thickness, the other gate plate (for example, the right gate plate shown in fig. 3) forms a compensation boss 37b with a thickness equal to one half of the gate plate thickness, and the compensation boss notch 37a and the compensation boss 37b are matched with each other to achieve a good self-sealing effect.

As can be seen from the schematic views of fig. 2 to 4, the directions of the adjacent shutter panel pressing sealing wing 311 and the adjacent shutter base plate pressing sealing wing 321 are opposite to each other.

As shown in fig. 2 to 4, the cross-sectional shapes of the adjacent shutter panel pressing and sealing wings 311 and the adjacent shutter base plate pressing and sealing wings 321 are each in an inverted-v shape. The inverted V-shaped shape has good pressing and holding effects and cannot influence the opening and closing of the gate plate.

In the present embodiment, the shutter panel 31 and the shutter base plate 32 are thin steel plates having elasticity, for example, metal plates having a thickness of 0.5 to 1.2 mm. The heat insulating filler layer 33 is a rock wool layer, but may be an asbestos layer, a glass fiber layer, or another refractory material such as a silicate.

Referring to fig. 4, it has been mentioned above that the shutter opening and closing pneumatic actuator 5 is energized and compressed air drives the cylinder to rotate 90 ° to open the group of shutters 3, thereby assuming the state shown in fig. 4. The method comprises the following steps: the gate plate hinge lug 312 on the middle gate plate in the group of gate plates 3 drives the linkage rod 2 to move leftwards through the linkage rod hinge lug 21, so that the group of gate plates 3 synchronously rotate 90 degrees and are in an opening state shown in fig. 4. On the contrary, when a fire occurs in the cabin of the ship and the group of the gate plates 3 needs to be closed, the pneumatic actuator 5 is powered off due to the opening and closing of the gate plates, and the group of the gate plates 3 is closed due to the power off and the air loss, namely, the state shown in fig. 1 to 3 is obtained as described above by the applicant.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. A structure-improved marine fireproof air brake device comprises a barrel body (1), wherein a front end wind blocking seat (12) of a flashboard is fixed on the front cavity wall of a barrel body cavity (11) of the barrel body (1), and a rear end wind blocking seat (13) of the flashboard is fixed on the rear cavity wall of the barrel body cavity (11) of the barrel body (1) and at a position corresponding to the front end wind blocking seat (12) of the flashboard; the linkage rod (2) is hinged with the flashboards (3), the flashboards (3) are the same in thickness, the front ends of the flashboards are pivotally supported on the flashboard front end wind blocking seats (12), the rear ends of the flashboards are pivotally supported on the flashboard rear end wind blocking seats (13), in the flashboards (3), a central flashboard is used as a boundary, the quantity of the flashboards on the two sides of the central flashboard is equal to each other, the lengths of the flashboards on the two sides are gradually shortened towards the cavity wall direction of the barrel cavity (11) in a mutually symmetrical state, the length of the flashboard close to the cavity wall of the barrel cavity (11) is shortest and the shape of the flashboard is D-shaped, the flashboard panels (3) are respectively composed of a flashboard panel (31), a flashboard bottom plate (32) and a heat insulation filling layer (33), and the two sides of the flashboard bottom plate (32) in the length direction and the two ends in the width direction are mutually jointed to form the linkage rod (2) and the flashboard bottom plate (32) A monolithic structure, the insulating filling layer (33) is positioned in a space formed by the flashboard panel (31) and the flashboard bottom plate (32) together; the first flashboard limiting strip I (4a) and the second flashboard limiting strip II (4b) are arranged, the first flashboard limiting strip I (4a) is fixed on the cavity wall of the barrel body cavity (11) at a position between the left end corresponding to the flashboard front end wind shielding seat (12) and the left end corresponding to the flashboard rear end wind shielding seat (13), and the second flashboard limiting strip II (4b) is also fixed on the cavity wall of the barrel body cavity (11) at a position between the right end corresponding to the flashboard front end wind shielding seat (12) and the right end corresponding to the flashboard rear end wind shielding seat (13) and corresponds to the first flashboard limiting strip I (4 a); the flashboard opening and closing pneumatic actuator (5) is arranged on the outer wall of the barrel body (1) at a position corresponding to the front end of the middle flashboard in the group of flashboards (3), and is connected with the front end of the middle flashboard; characterized in that in the group of flashboards (3), the edge parts of the opposite sides of the two adjacent flashboards in the length direction form mutually compensated staggered matching structures with the thickness being half of the thickness of each flashboard, and when the edge part of the flashboard panel (31) of one flashboard extends out of the adjacent flashboard panel pressing sealing wing (311) pressing to the edge part of the flashboard panel (31) of the other flashboard on the opposite side of the two adjacent flashboards, the edge part of the flashboard bottom plate (32) of the other flashboard extends out of the adjacent flashboard bottom plate pressing sealing wing (321) pressing to the edge part of the flashboard bottom plate (32) of the one flashboard; the linkage rod (2) is hinged with the flashboard panel (31).

2. The structurally improved fire damper device for ships according to claim 1, characterized in that a damper front end pivot shaft sleeve (121) equal in number to a group of dampers (3) is provided on the damper front end damper base (12) and at a position corresponding to a front end of the group of dampers (3), and a damper rear end pivot shaft sleeve (131) also equal in number to a group of dampers (3) is provided on the damper rear end damper base (13) and at a position corresponding to a rear end of the group of dampers (3), the front end of the group of dampers (3) being pivotally supported on the damper front end pivot shaft sleeve (121), and the rear end of the group of dampers (3) being pivotally supported on the damper rear end pivot shaft sleeve (131).

3. The structurally improved fire damper device for ships according to claim 2, wherein a shutter front end pivot shaft (34) is fixed to each of the front ends of the group of shutters (3) and at the widthwise central position thereof through a shutter front end pivot shaft seat (341), the shutter front end pivot shaft (34) is positioned to correspond to the shutter front end pivot shaft sleeve (121), and extends into the shutter front end pivot shaft sleeve (121) in the state of adding the shutter front end pivot shaft bushing (342) to pivotally engage with the shutter front end pivot shaft sleeve (121), and a shutter rear end pivot shaft (35) is fixed to each of the rear ends of the group of shutters (3) and at the widthwise central position thereof through a shutter rear end pivot shaft seat (351), the shutter rear end pivot shaft (35) is positioned to correspond to the shutter rear end pivot shaft sleeve (131) and extends into the shutter rear end pivot shaft sleeve (131) and the shutter rear end pivot shaft sleeve (352) in the state of adding the rear end pivot shaft (352) The pivot shaft sleeve (131) at the rear end of the plate is in pivot fit; the flashboard opening and closing pneumatic actuating mechanism (5) is connected with a front end pivot shaft (34) of the flashboard positioned at the front end of a flashboard in the middle in a group of flashboards (3).

4. The structurally improved marine fire damper device according to claim 3, wherein a shutter front end sealing rib (36a) is fixed below the front end edge portions of the plurality of shutters (3) and along the width direction of the plurality of shutters (3), and a shutter rear end sealing rib (36b) is fixed below the rear end edge portions of the plurality of shutters (3) and also along the width direction of the plurality of shutters (3), the shutter front end sealing rib (36a) being fitted to the bottom surface of the shutter front end windshield seat (12), and the shutter rear end sealing rib (36b) being fitted to the bottom surface of the shutter rear end windshield seat (13).

5. The structurally improved fire damper device for the ship according to claim 1, wherein a damper hinge lug (312) is fixed to each right side of a central position in a length direction of the damper panel (31), and a link rod hinge lug (21) is fixed to the link rod (2) at a position corresponding to the damper hinge lug (312), and the link rod hinge lug (21) is hinged to the damper hinge lug (312) through a link rod hinge trunnion (211).

6. The structurally improved fire damper device for ships according to claim 1, characterized in that the cylinder (1) has a cylindrical configuration and cylinder fixing flanges (14) are formed at upper and lower portions of the cylinder (1), and fixing flange holes (141) are opened at intervals in the cylinder fixing flanges (14).

7. The structurally improved fire damper apparatus for ships according to claim 1, wherein at the edge portions of the opposite sides in the longitudinal direction of each of the two adjacent gates, when one of the gates is formed with a compensation boss notch (37a) of one half of the gate thickness, the other gate is formed with a compensation boss (37b) of the same one half of the gate thickness, and the compensation boss notch (37a) and the compensation boss (37b) are fitted to each other.

8. The structurally improved marine fire damper apparatus according to claim 1, wherein the directions of the adjacent shutter panel pressing seal wings (311) and the adjacent shutter base plate pressing seal wings (321) are opposite to each other.

9. The structurally improved marine fire damper device according to claim 1 or 8, wherein the cross-sectional shapes of the adjacent shutter panel pressing seal wing (311) and the adjacent shutter bottom plate pressing seal wing (321) are each a-shaped.

10. The structurally improved fire damper device for ships according to claim 1, wherein the shutter panel (31) and the shutter base plate (32) are thin steel plates having elasticity; the heat insulation filling layer (33) is a rock wool layer, an asbestos layer or a glass fiber layer.