Airtight structure of air brake blade for ship

Abstract

The utility model discloses an airtight structure of an air brake blade for a ship and belongs to the technical field of ship facilities. Comprising an air brake frame body and a group of blade assemblies which are rotatably arranged in the air brake frame body at intervals, the blade assembly comprises a frame, a first sealing plate fixed to one side of the frame, a second sealing plate fixed to the other side of the frame, a pair of rotating shafts arranged on the front side face and the rear side face of the frame correspondingly, and a first sealing strip fixed to one end face of the frame. The first sealing strip is fixed to one end face of the frame, the second sealing strip is fixed to the other end face of the frame, the side sealing strips are fixed to the front side face and the rear side face of the frame respectively, every two adjacent blade assemblies are located on the same plane in the closed state, and the first sealing strip of one blade assembly and the second sealing strip of the other blade assembly jointly seal the gap between the two blade assemblies. The side sealing strips extend in the length direction of the front side face and the rear side face of the frame and abut against the inner side wall of the air brake frame all the time. The air brake has the advantages that the sealing effect of the air brake is greatly improved, and the air tightness and fire resistance of a ship are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship facilities, and particularly relates to an airtight structure of a wind gate blade for a warship. Background Art

[0002] As is well known, warships travel on the sea for a long time, and the marine environment is relatively harsh. Generally, air ducts on the ship need to be provided with wind gates. The function of the wind gate is not only to close when the warship needs to maintain an airtight environment, but also to block air by closing the wind gate in case of a fire. The current wind gate structure often uses a structure in which the blades rotate and abut against each other to close. However, the structures of the wind gate blades are different, and their sealing performances are also different. The better the sealing performance, the better the airtightness inside the warship, and it is easier to extinguish the fire in case of a fire. In the prior art, some sealing structures will set sealing strips on the blades to improve the sealing effect, but usually there is only a single sealing and pressure needs to be applied to achieve the best sealing effect. This simple abutting against each other cannot give full play to the excellent sealing effect of the sealing strip.

[0003] In the prior art, for example, a "marine fireproof wind gate" provided by Chinese Patent Application Publication No. CN113082567 uses the above-mentioned rotating abutting structure between the blades, and its sealing performance cannot reach the expected effect. Especially, gaps will be generated at the positions where the blades rotate at both ends, allowing a small amount of air to continuously enter the cabin through the gaps, thus affecting the airtightness and fireproof effect of the warship.

[0004] In view of the above situation, it is necessary to design an airtight structure of a wind gate blade for a warship with simple structure, low cost and good sealing effect. Therefore, the applicant has made a beneficial design, and the technical solution to be introduced below is generated under this background. Summary of the Utility Model

[0005] The task of the utility model is to provide an airtight structure of a wind gate blade for a warship, which helps to improve the blade sealing structure so as to seal the gaps between the blades and between the blades and the frame body, and is beneficial to improving the sealing effect of the wind gate and further improving the airtightness and fireproof performance of the warship.

[0006] The task of the utility model is accomplished in this way: an airtight structure of a wind brake blade for a ship, comprising a wind brake frame and a group of blade assemblies rotatably and spaced apart in the wind brake frame, the blade assembly comprising a frame, a first sealing plate fixed on one side of the frame, a second sealing plate fixed on the other side of the frame, a pair of rotating shafts respectively arranged on the front and rear side surfaces of the frame, a first sealing strip fixed on one end surface of the frame, a second sealing strip fixed on the other end surface of the frame and a pair of side sealing strips respectively fixed on the front and rear side surfaces of the frame, two adjacent blade assemblies are in the same plane in a closed state and the first sealing strip of one blade assembly and the second sealing strip of the other blade assembly jointly close the gap between the two blade assemblies, and the side sealing strips respectively extend along the length directions of the front and rear side surfaces of the frame and always abut against the inner side wall of the wind brake frame.

[0007] In a specific embodiment of the present utility model, the wind brake frame is formed with a wind brake cavity which passes through from left to right, and a circle of flange edges are respectively arranged on the left and right side edges of the wind brake frame, an upper guard edge is arranged on the upper side wall of the wind brake cavity along the front-to-back direction, and a lower guard edge is arranged on the lower side wall of the wind brake cavity along the front-to-back direction, and the blade assembly is rotatably supported on the front and rear side walls of the wind brake cavity through a rotating shaft.

[0008] In another specific embodiment of the present invention, the cross-sections of the first sealing strip and the second sealing strip are in the shape of the letter "P" and are both hollow structures.

[0009] In another specific embodiment of the utility model, the side sealing strip is constituted as a pair of connected hollow sealing strip structures, and the side sealing strip is sleeved on the rotating shaft through the connected position and fixed to the frame through fasteners. The pair of hollow sealing strips of the side sealing strip respectively clamp the rotating shaft in the middle and always rotate frictionally against the wind gate frame.

[0010] In another specific embodiment of the present invention, the first sealing strip is configured with a first sealing strip connecting edge, the first sealing strip connecting edge is clamped between the first sealing plate and the frame, and the first sealing plate and the frame fix the first sealing strip connecting edge via fasteners.

[0011] In another specific embodiment of the utility model, the second sealing strip is configured with a second sealing strip connecting edge, the second sealing strip connecting edge is clamped between the second sealing plate and the frame, and the second sealing plate and the frame fix the second sealing strip connecting edge by fasteners.

[0012] In a further specific embodiment of the present utility model, the first sealing plate extends towards the side with the first sealing strip and protrudes from the frame, and one side of the first sealing strip abuts against the first sealing plate; the second sealing plate extends towards the side with the second sealing strip and protrudes from the frame, and one side of the second sealing strip abuts against the second sealing plate; the front and rear sides of the first sealing plate and the second sealing plate protrude from the frame and do not contact the air damper frame body, and both sides of the side sealing strip abut against the first sealing plate and the second sealing plate respectively.

[0013] In a still further specific embodiment of the present utility model, the number of the blade assemblies is at least one and completely encloses the air damper frame body in the closed state.

[0014] After the present utility model adopts the above structure, the beneficial effects are as follows: Due to the double-channel sealing between the blade assemblies and the rotary sealing between the blade assemblies and the air damper frame body, the sealing effect of the air damper is greatly improved, and thus the airtightness and fire resistance of the ship are improved. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model in the open state;

[0016] Figure 2 It is a schematic structural diagram of an embodiment of the present utility model in the closed state;

[0017] Figure 3 It is a cross-sectional view of the blade assembly of the present utility model;

[0018] Figure 4 It is an assembly schematic diagram of the side sealing strip of the present utility model.

[0019] In the figure: 1. Air damper frame body, 11. Air damper cavity, 12. Flange edge, 13. Upper stop edge, 14. Lower stop edge; 2. Blade assembly, 21. Frame, 22. First sealing plate, 23. Second sealing plate, 24. Rotating shaft, 25. First sealing strip, 251. First sealing strip connecting edge, 26. Second sealing strip, 261. Second sealing strip connecting edge, 27. Side sealing strip. Detailed Description of the Specific Embodiment

[0020] The following combines the drawings to describe in detail the specific embodiment of the present utility model, but the description of the embodiment is not a limitation to the technical solution. Any change in form rather than substance based on the concept of the present utility model should be regarded as the protection scope of the present utility model.

[0021] In the following description, all the directional or azimuthal concepts related to up, down, left, right, front and back are based on Figure 1 the position shown, and thus cannot be understood as a special limitation to the technical solution provided by the present utility model.

[0022] See also Figure 1 Combined with Figure 2 The utility model relates to an airtight structure of a ship wind brake blade, comprising a wind brake frame 1 and a group of blade assemblies 2 rotatably arranged in intervals in the wind brake frame 1. The technical innovation of the utility model is that the blade assembly 2 comprises a frame 21, a first sealing plate 22 fixed on one side of the frame 21, a second sealing plate 23 fixed on the other side of the frame 21, a pair of rotating shafts 24 respectively arranged on the front and rear side surfaces of the frame 21, a first sealing strip 25 fixed on one end surface of the frame 21, a second sealing strip 26 fixed on the other end surface of the frame 21 and a pair of side sealing strips 27 respectively fixed on the front and rear side surfaces of the frame 21, two adjacent blade assemblies 2 are in the same plane in a closed state, and the first sealing strip 25 of one blade assembly 2 and the second sealing strip 26 of the other blade assembly 2 jointly close the gap between the two blade assemblies 2, and the side sealing strips 27 respectively extend along the length direction of the front and rear side surfaces of the frame 21 and always abut against the inner side wall of the wind brake frame 1.

[0023] Furthermore, the aforementioned wind brake frame 1 is formed with a wind brake cavity 11 which passes through from left to right, and a circle of flange edges 12 are respectively provided on the left and right side edges of the aforementioned wind brake frame 1. The aforementioned wind brake frame 1 is fixedly connected to the ship bulkhead through the flange edges 12. An upper retaining edge 13 is provided on the upper side wall of the aforementioned wind brake cavity 11 along the front-to-back direction, and a lower retaining edge 14 is provided on the lower side wall of the aforementioned wind brake cavity 11 along the front-to-back direction. The aforementioned blade assembly 2 is rotatably supported on the front and rear side walls of the wind brake cavity 11 through a rotating shaft 24.

[0024] Furthermore, the aforementioned first sealing plate 22 extends to the side having the first sealing strip 25 and protrudes from the frame 21, and one side of the aforementioned first sealing strip 25 abuts on the first sealing plate 22; the aforementioned second sealing plate 23 extends to the side having the second sealing strip 26 and protrudes from the frame 21, and the second sealing strip 26 therefore abuts on the second sealing plate 23; the front and rear side edges of the aforementioned first sealing plate 22 and the second sealing plate 23 protrude from the frame 21 without contacting the wind damper frame 1, and the two sides of the aforementioned side sealing strip 27 abut on the first sealing plate 22 and the second sealing plate 23 respectively.

[0025] Furthermore, the number of the aforementioned blade assemblies 2 is at least one and they completely enclose the wind damper frame 1 in the closed state. In the present embodiment, the number of the aforementioned blade assemblies 2 is preferably two, wherein the second sealing strip 26 of the aforementioned blade assembly 2 located at the top is sealed against the upper side wall of the wind damper frame 1 in the closed state, and the first sealing strip 25 of the aforementioned blade assembly 2 located at the bottom is sealed against the lower side wall of the wind damper frame 1 in the closed state.

[0026] See also Figure 3, the cross-sections of the aforementioned first sealing strip 25 and second sealing strip 26 are in the shape of the letter "P" and are both hollow structures; the aforementioned first sealing strip 25 is formed with a first sealing strip connecting edge 251, and the aforementioned first sealing strip connecting edge 251 is clamped between the first sealing plate 22 and the frame 21, and the first sealing plate 22 and the frame 21 are riveted to fix the first sealing strip connecting edge 251; the aforementioned second sealing strip 26 is formed with a second sealing strip connecting edge 261, and the aforementioned second sealing strip connecting edge 261 is clamped between the second sealing plate 23 and the frame 21, and the second sealing plate 23 and the frame 21 are riveted to fix the second sealing strip connecting edge 261.

[0027] Please refer to Figure 4 , the aforementioned side sealing strip 27 is configured as a pair of connected hollow sealing strip structures, the aforementioned side sealing strip 27 is sleeved on the rotating shaft 24 through the connected position and is riveted to the frame 21 by rivets, and the pair of hollow sealing strips of the aforementioned side sealing strip 27 respectively clamp the rotating shaft 24 in the middle and always abut against the air damper frame body 1 and rotate by friction.

[0028] Please continue to refer to Figures 1 to 4 , when it is necessary to open the air damper for ventilation, the aforementioned blade assembly 2 is rotated to a state where they are parallel to each other through the operating mechanism ( Figure 1 state), at this time, there are gaps between adjacent two of the aforementioned blade assemblies 2 and between the blade assembly 2 and the air damper frame body 1, and air can flow through the gaps; when it is necessary to close the air damper, the aforementioned blade assembly 2 is rotated around the rotating shaft 24 to a state where they are in the same plane through the operating mechanism ( Figure 2 shown), at this time, there is a gap between adjacent two of the aforementioned blade assemblies 2, and at this time, the first sealing strip 25 of the aforementioned blade assembly 2 located above abuts against the frame 21 of the blade assembly 2 below, and the second sealing strip 26 of the aforementioned blade assembly 2 located below abuts against the frame 21 of the blade assembly 2 above, so that both openings on both sides of the gap are sealed by two sealing strips at the same time. At the same time, in the closed state, one side edge of the aforementioned blade assembly 2 at the uppermost position abuts against the upper stop edge 13, and one side edge of the aforementioned blade assembly 2 at the lowermost position abuts against the lower stop edge 14. During the opening and closing processes of the above-mentioned air damper, the aforementioned side sealing strip 27 rubs on the frame 21 as the blade assembly 2 rotates, so that the gaps between the front and rear side surfaces of the blade assembly 2 and the air damper frame body 1 are completely sealed, thereby greatly improving the sealing effect of the air damper.

Claims

1. An airtight structure of a ship wind brake blade, comprising a wind brake frame (1) and a group of blade assemblies (2) rotatably arranged in intervals in the wind brake frame (1), characterized in that: The blade assembly (2) comprises a frame (21), a first sealing plate (22) fixed on one side of the frame (21), a second sealing plate (23) fixed on the other side of the frame (21), a pair of rotating shafts (24) respectively arranged on the front and rear side surfaces of the frame (21), a first sealing strip (25) fixed on one end surface of the frame (21), a second sealing strip (26) fixed on the other end surface of the frame (21), and a pair of side sealing strips (27) respectively fixed on the front and rear side surfaces of the frame (21); two adjacent blade assemblies (2) are located on the same plane in a closed state, and the first sealing strip (25) of one blade assembly (2) and the second sealing strip (26) of the other blade assembly (2) jointly close the gap between the two blade assemblies (2); the side sealing strips (27) respectively extend along the length direction of the front and rear side surfaces of the frame (21) and always abut against the inner side wall of the wind damper frame (1).

2. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The damper frame (1) is formed with a damper cavity (11) extending through the left and right sides. The left and right edges of the damper frame (1) are respectively provided with a circle of flange edges (12). An upper retaining edge (13) is provided on the upper side wall of the damper cavity (11) along the front-to-back direction. A lower retaining edge (14) is provided on the lower side wall of the damper cavity (11) along the front-to-back direction. The blade assembly (2) is rotatably supported on the front and rear side walls of the damper cavity (11) via a rotating shaft (24).

3. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The cross-sections of the first sealing strip (25) and the second sealing strip (26) are in the shape of the letter "P" and are both hollow structures.

4. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The side sealing strip (27) is constituted as a pair of connected hollow sealing strip structures. The side sealing strip (27) is sleeved on the rotating shaft (24) through the connected position and fixed to the frame (21) through fasteners. The pair of hollow sealing strips of the side sealing strip (27) respectively clamp the rotating shaft (24) in the middle and always rotate frictionally against the wind damper frame (1).

5. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The first sealing strip (25) is formed with a first sealing strip connecting edge (251), and the first sealing strip connecting edge (251) is clamped between the first sealing plate (22) and the frame (21), and the first sealing strip connecting edge (251) is fixed between the first sealing plate (22) and the frame (21) by a fastener.

6. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The second sealing strip (26) is formed with a second sealing strip connecting edge (261), and the second sealing strip connecting edge (261) is clamped between the second sealing plate (23) and the frame (21), and the second sealing plate (23) and the frame (21) are fixed to the second sealing strip connecting edge (261) by fasteners.

7. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The first sealing plate (22) extends toward the side having the first sealing strip (25) and protrudes from the frame (21), and one side of the first sealing strip (25) abuts against the first sealing plate (22); the second sealing plate (23) extends toward the side having the second sealing strip (26) and protrudes from the frame (21), and one side of the second sealing strip (26) abuts against the second sealing plate (23); the front and rear side edges of the first sealing plate (22) and the second sealing plate (23) protrude from the frame (21) without contacting the wind damper frame (1), and the two sides of the side sealing strip (27) respectively abut against the first sealing plate (22) and the second sealing plate (23).

8. The airtight structure of a ship wind brake blade according to claim 1, characterized in that: The number of the blade assembly (2) is at least one and completely encloses the damper frame (1) in a closed state.

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