Door-free weather-tight shutter with fireproof and electromagnetic shielding functions

Abstract

The invention discloses a door-free weather-tight shutter with fireproof and electromagnetic shielding functions, which comprises a frame, an insect-proof and rat-proof net is arranged on the front side in the frame, a shutter structure and a multi-layer high-shielding waveguide structure which are positioned behind the insect-proof and rat-proof net are further arranged in the frame, and the shutter structure comprises a plurality of blades which are uniformly arranged up and down; a plurality of fireproof sealing strips are fixed to the frame, and when the shutter is closed, each fireproof sealing strip can seal a gap between every two adjacent blades. By arranging the multi-layer high-shielding waveguide structure and conducting fireproof treatment on the positions of the blades of the shutter, effective ventilation of the interior of a cabin is guaranteed, meanwhile, fireproof, electromagnetic shielding and wind and rain prevention are achieved, and therefore the diversified function requirements of the door-free wind and rain tight shutter in the ship ventilation field are met.

Description

Technical Field

[0001] The invention relates to a doorless weathertight shutter with fire prevention and electromagnetic shielding functions, belonging to the technical field of ship ventilation, fire prevention and electromagnetic shielding. Background Art

[0002] In ship ventilation systems, doorless weathertight shutters are often installed on the external bulkheads to meet cabin ventilation and wind and rain protection requirements.

[0003] Nowadays, with the diversity of tasks undertaken by ships, the external environment of cabins is becoming more and more complex, and the requirements for doorless weathertight shutters are becoming higher and higher. For ships with external escape routes, the opening of doorless weathertight shutters will destroy the fire-resistant integrity of the bulkhead, and the doorless weathertight shutters must have fireproof functions or add fire dampers with corresponding fireproof levels; for ships with complex electromagnetic radiation environments, external electromagnetic radiation will enter the cabin through doorless weathertight shutters, affecting the safety of personnel in the cabin and the normal operation of electronic equipment, and the doorless weathertight shutters must have electromagnetic shielding functions or add electromagnetic shielding ventilation components with corresponding shielding levels.

[0004] However, the functions of doorless weatherproof shutters on the market are relatively simple, they only have the function of weatherproof, but not the function of electromagnetic shielding or fire prevention; although there are some valve components that are not shutters that have electromagnetic shielding or fire prevention functions, such as fire dampers that have fire prevention functions, they are not weatherproof or electromagnetic shielding; electromagnetic shielding ventilation components have electromagnetic shielding functions, but they are not weatherproof or fireproof.

[0005] Even if the doorless weathertight shutters, electromagnetic shielding ventilation components, and fire dampers are simply stacked and used, the functions of the three cannot be perfectly combined. Fire protection loopholes or electromagnetic shielding loopholes are likely to exist. In addition, the joint use of the three requires high installation space and cost, that is, it takes up more space, is more expensive, and may make the layout unfeasible in some occasions.

[0006] In summary, since the fireproof damper does not have the electromagnetic shielding function and the electromagnetic shielding ventilation assembly does not have the fireproof function, the joint application of the three makes it impossible to perfectly achieve the wind and rainproof, fireproof and electromagnetic shielding functions. Summary of the invention

[0007] The technical problem to be solved by the present invention is: how to make the doorless weathertight shutter have electromagnetic shielding and fireproof functions on the basis of ship ventilation and weathertightness.

[0008] In order to solve the above technical problems, the technical solution of the present invention is to provide a doorless, wind and rainproof shutter with fireproof and electromagnetic shielding functions, which is characterized in that it includes a frame, an insect and rodent-proof net is provided on the front side of the frame, and a shutter structure and a multi-layer high-shielding waveguide structure are also provided behind the insect and rodent-proof net in the frame. The shutter structure includes a plurality of blades evenly arranged up and down, and a plurality of fireproof sealing strips are fixed on the frame. When the shutter is closed, each fireproof sealing strip can close a gap between two adjacent blades.

[0009] Preferably, a blade fire barrier strip made of fireproof material is provided on the back of each blade; when the shutter is closed, the blade fire barrier strips on the backs of any two adjacent blades overlap with the upper and lower sides of a corresponding fireproof sealing strip between the two adjacent blades.

[0010] Preferably, the multi-layer high-shielding waveguide structure is arranged between the louver structure and the insect and rodent proof net.

[0011] Preferably, both ends of one side of each blade are rotatably connected to the rear side of the frame, and a connecting plate is provided in front of the blade, on which one end of multiple small connecting ears are hinged at equal intervals from top to bottom, and the other end of each small connecting ear is hinged to the other side of a blade.

[0012] Preferably, a transmission shaft parallel to the horizontal plane is passed through the bottom of the frame, and both ends of the transmission shaft are connected to the connecting plate through connecting seats respectively. A reducer is connected to the middle of the transmission shaft, and a worm is provided in the reducer for meshing transmission with the worm gear, and a handwheel is connected to the front end of the worm. The worm rotates under the driving action of the handwheel, and the transmission shaft rotates through the reducer, thereby driving the connecting plate to move up and down, and the connecting plate then drives the small connecting ear to move, thereby controlling the opening and closing of the blades.

[0013] Preferably, a drainage hole is provided at the bottom of the frame; an anti-leakage baffle is provided at the bottom of the frame to prevent electromagnetic signals from leaking through the worm holes and the drainage hole; the anti-leakage baffle is made of electromagnetic wave-proof material as a whole.

[0014] Preferably, the insect and rodent proof net is surrounded by a net frame, and the net frame is connected to a multi-layer high-shielding waveguide structure.

[0015] Preferably, the mesh frame is connected to the multi-layer high-shielding waveguide structure by bolts, and a mounting seat plate is provided at the tail of the bolts to prevent some electromagnetic signals from leaking through the bolt connection; the mounting seat plate is made of electromagnetic wave-proof material.

[0016] Preferably, the multi-layer high-shielding waveguide structure is composed of a plurality of hexagonal waveguide cavities, which can effectively shield electromagnetic signals.

[0017] Preferably, the frame is provided with a pair of lifting ears for hanging the blinds at a high place; and the front part of the frame is provided with a nameplate for recording the relevant information of the blinds.

[0018] The present invention adds electromagnetic shielding design and fireproof design on the basis of conventional doorless weatherproof shutters, and takes into account electromagnetic shielding leakage (providing a multi-layer high-shielding waveguide structure, or a high-shielding waveguide structure and an anti-leakage baffle) and fireproof integrity (providing a fireproof sealing strip, or a blade fireproof strip and a fireproof sealing strip), so that it has the functions of weatherproof, fireproof and electromagnetic shielding.

[0019] The present invention arranges a multi-layer high-shielding waveguide structure and performs fireproof treatment on the position of the shutter blades, thereby ensuring effective ventilation inside the cabin while achieving fire prevention, electromagnetic shielding and wind and rain protection, thereby meeting the diverse functional requirements of doorless wind and rain-tight shutters in the field of ship ventilation.

[0020] The present invention specifically includes the following beneficial effects: after the doorless weathertight shutter is installed on a ship, the doorless weathertight shutter can be fireproofed by designing the shutter blades, and the highest fireproof grade can reach A60. At the same time, by arranging a multi-layer high-shielding waveguide structure on the shutter frame, the doorless weathertight shutter can be provided with an electromagnetic shielding function. In addition, the present invention has a simple structure, is easy to manufacture, does not affect the ventilation effect of the original shutter, and takes into account both economy and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of a doorless weathertight shutter with fireproof and electromagnetic shielding functions;

[0022] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0023] Figure 3 Schematic diagram of the blades opening and closing. DETAILED DESCRIPTION

[0024] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0025] The present invention provides a doorless weathertight shutter with fireproof and electromagnetic shielding functions, such as Figure 1 and Figure 2As shown, it includes a frame 1, which is made of SUS316L material or equivalent steel material as a whole. A blade 2 is installed on the rear side of the frame 1 (the side close to the inside I of the bulkhead), and the blade 2 is made of SUS316L material or other anti-corrosion and anti-corrosion materials. A connecting plate 5 is installed in front of the blade 2 (the side close to the outside O of the bulkhead), and the connecting plate 5 is made of SUS316L material or other anti-corrosion and anti-corrosion materials. A plurality of small connecting ears 6 are hinged on the connecting plate 5 at equal intervals from top to bottom. The small connecting ears 6 are made of SUS316L material or other anti-corrosion and anti-corrosion materials, and the other end of each small connecting ear 6 is hinged to the blade 2 respectively. A transmission shaft 7 parallel to the horizontal plane is penetrated through the bottom of the frame 1, and both ends of the transmission shaft 7 are connected to the connecting plate 5 through connecting seats respectively. A reducer 8 is installed in the middle of the transmission shaft 7, and a worm 9 meshing with the worm gear is installed in the reducer 8. A handwheel 10 is installed at the front end of the worm 9. The worm 9 rotates under the driving action of the handwheel 10, and the transmission shaft 7 is driven by the reducer 8 to rotate, thereby linking the connecting plate 5 to move up and down, and the connecting plate 5 drives the small connecting ear 6 to move, so as to control the opening and closing of the blade 2. The structural design is reasonable and the wind and rain tightness is strong. Even in the case of wind and waves, it is not easy for water to penetrate into the cabin, thereby ensuring the normal ventilation of the shutters.

[0026] like Figure 2 As shown, an insect and rat-proof net 13 is installed on the front side of the frame 1. The four sides of the insect and rat-proof net 13 are connected to the inner wall of the front side of the frame 1. The insect and rat-proof net 13 is made of titanium alloy material or other anti-corrosion and corrosion-resistant materials. The insect and rat-proof net 13 can prevent insects, rats and dust from entering the blinds. A multi-layer high-shielding waveguide structure 14 is installed on the middle side of the frame 1. The multi-layer high-shielding waveguide structure 14 is composed of a number of hexagonal waveguide cavities and can effectively shield electromagnetic signals. A net frame 15 is arranged around the insect and rat-proof net 13. The net frame 15 is made of SUS316L material or other anti-corrosion and corrosion-resistant materials. The net frame 15 is connected to the multi-layer high-shielding waveguide structure 14 by bolts 17. In order to prevent some electromagnetic signals from leaking through the bolt connection, a mounting seat plate 16 is arranged at the tail of the bolt 17. The mounting seat plate 16 is made of SUS316L material or other electromagnetic wave-proof materials. A drainage hole 11 facing outward is arranged at the bottom of the frame 1. An anti-leakage baffle 12 is provided at the bottom of the frame 1. The anti-leakage baffle 12 is made of SUS316L material or other electromagnetic wave-proof material. The anti-leakage baffle 12 can prevent electromagnetic signals from leaking through gaps such as worm holes and drainage holes.

[0027] like Figure 2 and Figure 3 As shown, a plurality of fireproof sealing strips 3 are fixed on the frame 1, and each fireproof sealing strip 3 is arranged between two adjacent blades 2. When the shutter is closed, the fireproof sealing strip 3 can close the gap between the adjacent blades 2.

[0028] like Figure 3As shown, a blade fire stop strip 4 is provided on the back of the blade 2. The blade fire stop strip 4 is made of fireproof material. When the shutter is closed, the blade fire stop strip 4 can prevent fire. The blade fire stop strip 4 on the back of any two adjacent blades 2 overlaps with the upper and lower sides of a corresponding fireproof sealing strip 3 between the two adjacent blades 2. The blade fire stop strip 4 and the fireproof sealing strip 3 are combined to achieve a better fireproof effect. The fireproof grade of the doorless weathertight shutter using the present invention can reach A60 grade.

[0029] like Figure 2 As shown, a pair of lifting ears 18 are provided on the frame 1. The lifting ears 18 are made of SUS316L material or equivalent steel material, and the lifting ears 18 enable the shutter to be hoisted and used at a high place.

[0030] like Figure 1 As shown, a nameplate 19 is provided at the front of the frame 1. The nameplate 19 is made of SUS316L material or other anti-corrosion and anti-corrosion materials. Relevant information about the shutter can be noted on the nameplate 19 to facilitate operation.

Claims

1. A doorless weathertight shutter with fireproof and electromagnetic shielding functions, characterized in that: The invention comprises a frame (1), wherein an insect and rodent proof net (13) is arranged on the front side of the frame (1), and a shutter structure and a multi-layer high-shielding waveguide structure (14) are also arranged in the frame (1) behind the insect and rodent proof net (13). The shutter structure comprises a plurality of blades (2) evenly arranged up and down, and a plurality of fireproof sealing strips (3) are fixed on the frame (1). When the shutter is closed, each fireproof sealing strip (3) can close a gap between two adjacent blades (2).

2. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: A blade fire stop strip (4) made of fireproof material is provided on the back of each blade (2); when the shutter is closed, the blade fire stop strips (4) on the back of any two adjacent blades (2) overlap with the upper and lower sides of a corresponding fireproof sealing strip (3) between the two adjacent blades (2).

3. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: The multi-layer high-shielding waveguide structure (14) is arranged between the shutter structure and the insect and rodent proof net (13).

4. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: Both ends of one side of each blade (2) are rotatably connected to the inner rear side of the frame (1), and a connecting plate (5) is provided in front of the blade (2). One end of a plurality of small connecting ears (6) are hingedly connected to the connecting plate (5) at equal intervals from top to bottom, and the other end of each small connecting ear (6) is hingedly connected to the other side of a blade (2).

5. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 4, characterized in that: A transmission shaft (7) parallel to the horizontal plane is passed through the bottom of the frame (1), and both ends of the transmission shaft (7) are connected to the connecting plate (5) through connecting seats respectively. A reducer (8) is connected to the middle of the transmission shaft (7), and a worm (9) meshing with the worm gear is provided in the reducer (8), and a hand wheel (10) is connected to the front end of the worm (9); the worm (9) rotates under the driving action of the hand wheel (10), and the transmission shaft (7) is rotated through the reducer (8), thereby driving the connecting plate (5) to move up and down, and the connecting plate (5) drives the small connecting ear (6) to move, thereby controlling the opening and closing of the blade (2).

6. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 5, characterized in that: The frame (1) is provided with a drainage hole (11) at the bottom; the frame (1) is provided with an anti-leakage baffle (12) at the bottom to prevent electromagnetic signals from leaking through the worm hole and the drainage hole (11); the anti-leakage baffle (12) is entirely made of electromagnetic wave-impermeable material.

7. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: The insect and rodent proof net (13) is provided with a net frame (15) around it, and the net frame (15) is connected to a multi-layer high-shielding waveguide structure (14).

8. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 7, characterized in that: The mesh frame (15) is connected to the multi-layer high-shielding waveguide structure (14) via bolts (17). A mounting seat plate (16) is provided at the tail of the bolts (17) to prevent partial electromagnetic signals from leaking through the bolt connection. The mounting seat plate (16) is made of electromagnetic wave-proof material.

9. A doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: The multi-layer high-shielding waveguide structure (14) is composed of a plurality of hexagonal waveguide cavities and can effectively shield electromagnetic signals.

10. The doorless weathertight shutter with fireproof and electromagnetic shielding functions as claimed in claim 1, characterized in that: The frame (1) is provided with a pair of lifting ears (18) for hanging the blinds at a high place; and the front part of the frame (1) is provided with a nameplate (19) for recording relevant information of the blinds.

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