Improved structure and use method of marine ventilator

Abstract

The present invention relates to the technical field of ship ventilators, and discloses an improved structure of a ship ventilator, wherein the guide rail assembly comprises a sliding column, the top of the sliding column is fixedly connected to a hollow shell, the outer wall of the sliding column is slidably connected to a sliding block 1, the outer wall of the sliding block 1 is fixedly connected to a connecting frame 2, the end of the connecting frame 2 away from the sliding block 1 is fixedly connected to a circular plate 1, the side of the sliding column away from the sliding block 1 is slidably connected to the sliding block 2, the outer wall of the sliding block 2 is fixedly connected to a connecting plate 1, the end of the connecting plate 1 away from the sliding block 2 is fixedly connected to a fixing plate, and the bottom of the fixing plate is fixedly connected to an annular plate by setting the guide rail assembly to prevent the exhaust port from being blocked due to the displacement of the connection caused by the strong wind and waves at sea.

Description

Technical Field

[0001] The invention relates to the technical field of ship ventilators, and in particular to an improved structure of a ship ventilator and a use method thereof. Background Art

[0002] Ship is a general term for various types of ship equipment. In an era of rapid technological development, people's requirements for the internal environment of ships are gradually increasing. Generally speaking, in order to ensure air circulation, an appropriate number of ventilators need to be installed on the ship. Traditional ship ventilators can basically meet people's usage needs.

[0003] The patent application with application number CN202111568061.4 discloses a silencer and detachable ventilator for ships. Through the cooperation of the sealed cover, the sealing mechanism and the ventilation mechanism, the ship can have two different ventilation operation modes during ventilation operation, which is convenient for switching different ventilation operations according to different weather conditions, effectively improving the protection effect of the ship during ventilation operation, and can perform double sealing operations. Through the setting of silencer components and silencer cotton, the quietness of the device during use is effectively improved.

[0004] During the use of the above-mentioned equipment, if encountering severe weather at sea, a large amount of seawater will hit the ventilator. The ventilation holes will be eroded by seawater for a long time, which will cause rust on the spiral rod on the top, making it difficult to rotate. When encountering severe weather, it is inconvenient to lower the water baffle by rotating the handle. At the same time, due to the long-term erosion of seawater, the connection of the pipe will rust and leak, which is not conducive to the normal operation of the ventilator. Summary of the invention

[0005] The object of the present invention is to provide an improved structure and use method of a marine ventilator to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an improved structure of a marine ventilator, comprising a mounting plate, the interior of the mounting plate is fixedly connected to a lower hollow column, the outer wall of the lower hollow column is fixedly connected to an arc-shaped ring plate, the side of the arc-shaped ring plate away from the lower hollow column is fixedly connected to a protective plate, the bottom of the protective plate is fixedly connected to the mounting plate, the top of the protective plate is fixedly connected to the lower hollow column, the end of the lower hollow column away from the mounting plate is fixedly connected to a sealed component, and the side of the sealed component away from the lower hollow column is fixedly connected to an upper hollow column. The outer wall of the upper hollow column is fixedly connected with an arc-shaped ring plate 2, and the arc-shaped ring plate 2 is fixedly connected with a protective plate 2 on the side away from the upper hollow column. The outer wall of the upper hollow column is fixedly connected with an exhaust plate, the bottom of the protective plate 2 is fixedly connected to the upper hollow column, and the top of the upper hollow column is fixedly connected to the exhaust plate. The outer wall of the exhaust plate is fixedly connected with a hollow shell. The purpose of this arrangement is to enhance the energy absorption effect of the device by installing a protective plate and a hollow shell on the outer wall of the hollow column to prevent the device from being damaged by external force impact, and also includes:

[0007] The switch mechanism comprises a mounting head fixedly connected to the inner wall of the upper hollow column, the top of the mounting head is fixedly connected to a push rod, the outer wall of the push rod is fixedly connected to a fixing ring, the outer wall of the fixing ring is fixedly connected to the upper hollow column, the end of the push rod away from the mounting head is fixedly connected to a connecting frame 1, the end of the connecting frame 1 away from the push rod is fixedly connected to a conical column, the side of the conical column away from the push rod is fixedly connected to a circular plate 1, the outer wall of the circular plate 1 is fixedly connected to a sealing ring, the top of the exhaust plate is fixedly connected to a guide rail assembly, the top of the circular plate 1 is fixedly connected to the A pressurizing component is fixedly connected, and an annular plate is fixedly connected to one end of the pressurizing component away from the circular plate. A sealing block is fixedly connected to the bottom of the annular plate. The purpose of this arrangement is to set a switch mechanism. When the air outlet needs to be closed, just play the push rod. Because the push rod is arranged inside the equipment, it can avoid being eroded by seawater. At the same time, by installing the annular plate and the circular plate, when the air outlet is closed, a separate space is formed inside the hollow shell. When seawater enters the hollow shell from the exhaust plate, it will not flow into the hollow column.

[0008] According to the above technical scheme, the sealing component includes a rubber plate, the outer wall of the rubber plate is fixedly connected with a sealing rubber ring, the top of the rubber plate is provided with a fixing hole, the inner wall of the fixing hole is fixedly connected with a bolt, the outer wall of the bolt is fixedly connected to the lower hollow column, the outer wall of the bolt is fixedly connected to the upper hollow column, and the top of the rubber plate is provided with a positioning hole, and the inner wall of the positioning hole is provided with a pressure equalizing groove. The purpose of such a setting is to install a sealing ring between the upper hollow column and the lower hollow column by setting a sealing component, so as to block the gap between the two, prevent seawater from flowing into the equipment through the gap, causing internal rust, and at the same time, fix the upper hollow column and the lower hollow column to the sealing component together by bolts, limit the position of the upper hollow column and the lower hollow column by the positioning hole, make the bolt easier to install, and enable the rubber plate to deform toward the center after receiving pressure by the pressure equalizing groove, thereby enhancing the protection of the component.

[0009] According to the above technical solution, the guide rail assembly includes a sliding column, the top of the sliding column is fixedly connected to the hollow shell, the outer wall of the sliding column is slidably connected to a slider 1, the outer wall of the slider 1 is fixedly connected to a connecting frame 2, and the end of the connecting frame 2 away from the slider 1 is fixedly connected to a circular plate 1.

[0010] According to the above technical solution, the side of the sliding column away from the slider one is slidably connected to the slider two, the outer wall of the slider two is fixedly connected to the connecting plate one, the end of the connecting plate one away from the slider two is fixedly connected to the fixing plate, and the bottom of the fixing plate is fixedly connected to the annular plate. The purpose of this arrangement is to limit the movement of the circular plate and the annular plate by setting a guide rail assembly to prevent the connection from being offset and unable to block the exhaust port due to strong winds and waves at sea.

[0011] According to the above technical solution, the pressurizing component includes a sliding plate, the bottom of the sliding plate is fixedly connected to the annular plate, the inner wall of the sliding plate is slidably connected to a slider three, the outer wall of the slider three is rotatably connected to a connecting plate two, and the inner wall of the connecting plate two is fixedly connected to a circular plate two.

[0012] According to the above technical solution, the end of the connecting plate 2 away from the slider 3 is rotatably connected to the connecting head 1, the end of the connecting head 1 away from the connecting plate 2 is fixedly connected to the connecting frame 3, and the end of the connecting frame 3 away from the connecting head 1 is fixedly connected to the circular plate 1.

[0013] According to the above technical solution, the inner wall of the connecting head 1 is slidably connected to the sliding frame 1, the bottom of the sliding frame 1 is fixedly connected to the pressure plate, the top of the pressure plate is fixedly connected to the extrusion plate, the outer wall of the pressure plate is fixedly connected to the sliding frame 2, the outer wall of the sliding frame 2 is slidably connected to the connecting head 2, the outer wall of the connecting head 2 is rotatably connected to the connecting plate 2, and the outer wall of the connecting plate 2 is sleeved with an elastic U-shaped rod. The purpose of such a setting is to strengthen the pressure on the annular plate through the sliding plate by setting a pressurizing component, so that the sealing block can be better embedded in the exhaust plate, further enhancing the waterproof performance of the equipment.

[0014] A method for using a marine ventilator comprises the following steps:

[0015] S1. When you need to install a marine ventilator, first align the bottom of the lower hollow column with the vent and put it in. After the bottom of the lower hollow column is embedded in the vent, fix the mounting plate to the ground with screws to complete the bottom installation;

[0016] S2. After installing the lower hollow column, place the sealed component on top of the lower hollow column, align the positioning column of the lower hollow column with the positioning hole on the sealed component, align the positioning column at the bottom of the upper hollow column with the positioning hole and place it on the sealed component, and then fix the three together with bolts;

[0017] S3. After the installation is completed, the horizontal height of the circular plate 1, the sealing ring, the annular plate and the sealing block can be controlled by starting the push rod, and then the air intake state of the marine ventilator can be controlled;

[0018] S4. Finally, close all the ventilation holes, inspect the equipment, and spray water on the equipment with a water gun. After the water spraying is completed, inspect the equipment and its interior for any water leaks.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0020] 1. The present invention sets a sealing component, installs a sealing ring between the upper hollow column and the lower hollow column, blocks the gap between the two, and prevents seawater from flowing into the equipment through the gap to cause internal rust. At the same time, the upper hollow column and the lower hollow column are fixed together with the closed component by bolts, and the positions of the upper hollow column and the lower hollow column are limited by positioning holes, making it easier to install the bolts. The pressure equalizing groove allows the rubber plate to deform toward the center after receiving pressure, thereby enhancing protection of the component.

[0021] 2. The present invention sets a switch mechanism. When the air outlet needs to be closed, it only needs to push the push rod. Because the push rod is arranged inside the equipment, it can avoid being corroded by seawater. At the same time, by installing the annular plate and the circular plate, a separate space is formed inside the hollow shell when the air outlet is closed. When seawater enters the hollow shell from the exhaust plate, it will not flow into the hollow column.

[0022] 3. The present invention limits the movement of the circular plate and the annular plate by setting a guide rail assembly to prevent the connection from being offset and unable to block the exhaust port due to strong sea waves.

[0023] 4. The present invention provides a pressurizing component to strengthen the pressure on the annular plate through the sliding plate, so that the sealing block can be better embedded in the exhaust plate, further enhancing the waterproof performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 is a schematic diagram of a closed assembly of the present invention;

[0028] Figure 4 The present invention Figure 3 A magnified view of middle;

[0029] Figure 5 is a schematic diagram of the switch mechanism of the present invention;

[0030] Figure 6 It is a bottom view of some parts of the switch mechanism of the present invention;

[0031] Figure 7 is a schematic diagram of a guide rail assembly of the present invention;

[0032] Figure 8 is a schematic diagram of a pressurizing assembly of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal parts of the pressurizing assembly of the present invention;

[0034] In the figure: 1. mounting plate; 101. lower hollow column; 102. protection plate 1; 103. arc ring plate 1; 104. upper hollow column; 105. arc ring plate 2; 106. protection plate 2; 107. exhaust plate; 108. hollow shell; 11. closed component; 111. rubber plate; 112. sealing rubber ring; 113. fixing hole; 114. bolt; 115. positioning hole; 116. pressure equalizing groove; 2. switch mechanism; 201. mounting head; 202. push rod; 203. fixing ring; 204. connecting frame 1; 205. conical column; 206. round plate 1; 2 07, sealing ring; 208, annular plate; 209, sealing block; 21, guide rail assembly; 211, sliding column; 212, slider one; 213, connecting frame two; 214, slider two; 215, connecting plate one; 216, fixed plate; 22, pressurizing assembly; 221, sliding plate; 222, slider three; 223, connecting plate two; 224, circular plate two; 225, connector one; 226, connecting frame three; 227, sliding frame one; 228, pressure plate; 229, extrusion plate; 2210, sliding frame two; 2211, connector two; 2212, elastic U-shaped rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For example, see Figure 1-6 The present invention provides a technical solution: an improved structure of a marine ventilator, comprising a mounting plate 1, a lower hollow column 101 is fixedly connected to the interior of the mounting plate 1, an arcuate ring plate 103 is fixedly connected to the outer wall of the lower hollow column 101, a protective plate 102 is fixedly connected to the side of the arcuate ring plate 103 away from the lower hollow column 101, the bottom of the protective plate 102 is fixedly connected to the mounting plate 1, the top of the protective plate 102 is fixedly connected to the lower hollow column 101, and the end of the lower hollow column 101 away from the mounting plate 1 is fixedly connected to a sealed component 11, The closing component 11 is fixedly connected to the upper hollow column 104 on one side away from the lower hollow column 101, and the outer wall of the upper hollow column 104 is fixedly connected to the second arc-shaped ring plate 105, and the second arc-shaped ring plate 105 is fixedly connected to the side away from the upper hollow column 104. The outer wall of the upper hollow column 104 is fixedly connected to the exhaust plate 107, the bottom of the second protective plate 106 is fixedly connected to the upper hollow column 104, the top of the upper hollow column 104 is fixedly connected to the exhaust plate 107, and the outer wall of the exhaust plate 107 is fixedly connected to the hollow shell 108, and also includes:

[0037] The switch mechanism 2 includes a mounting head 201 fixedly connected to the inner wall of the upper hollow column 104, a push rod 202 is fixedly connected to the top of the mounting head 201, a fixing ring 203 is fixedly connected to the outer wall of the push rod 202, the outer wall of the fixing ring 203 is fixedly connected to the upper hollow column 104, the end of the push rod 202 away from the mounting head 201 is fixedly connected to a connecting frame 204, the end of the connecting frame 204 away from the push rod 202 is fixedly connected to a conical column 205, the side of the conical column 205 away from the push rod 202 is fixedly connected to a circular plate 206, the outer wall of the circular plate 206 is fixedly connected to a sealing ring 207, the top of the exhaust plate 107 is fixedly connected to a guide rail assembly 21, the circular plate 206 is fixedly connected to the outer wall of the circular plate 206, and the outer wall of the circular plate 206 is fixedly connected to the outer wall of the circular plate 206. A pressurizing component 22 is fixedly connected to the top of 206, and an annular plate 208 is fixedly connected to the end of the pressurizing component 22 away from the circular plate 206. A sealing block 209 is fixedly connected to the bottom of the circular plate 208. The purpose of this arrangement is to drive the circular plate 206 to move up and down through the push rod 202, and the moving circular plate 206 will drive the sealing ring 207 to move up and down. The up and down movement of the circular plate 206 drives the annular plate 208 and the sealing block 209 to move up and down through the pressurizing component 22. When the air outlet does not need to be closed, the push rod 202 is pushed out, and when the air outlet needs to be closed, the push rod 202 is retracted, the sealing block 209 is embedded in the exhaust plate 107, and the sealing ring 207 blocks the hollow column.

[0038] The sealing component 11 includes a rubber plate 111, the outer wall of which is fixedly connected to a sealing rubber ring 112, a fixing hole 113 is provided at the top of the rubber plate 111, a bolt 114 is fixedly connected to the inner wall of the fixing hole 113, the outer wall of the bolt 114 is fixedly connected to the lower hollow column 101, the outer wall of the bolt 114 is fixedly connected to the upper hollow column 104, a positioning hole 115 is provided at the top of the rubber plate 111, and a pressure equalizing groove 116 is provided on the inner wall of the positioning hole 115. The purpose of this arrangement is to allow the bolt 114 to fix the upper hollow column 104, the sealing plate, and the lower hollow column 101, and the barrel positioning hole 115 square plate facilitates the installation of the bolt 114.

[0039] Embodiment 2 is different from Embodiment 1 in that: Figure 7-Figure 9As shown, the guide rail assembly 21 includes a sliding column 211, the top of the sliding column 211 is fixedly connected to the hollow shell 108, the outer wall of the sliding column 211 is slidably connected to a slider 1 212, the outer wall of the slider 1 212 is fixedly connected to a connecting frame 213, the end of the connecting frame 213 away from the slider 1 212 is fixedly connected to the circular plate 1 206, the side of the sliding column 211 away from the slider 1 212 is slidably connected to a slider 214, the outer wall of the slider 214 is fixedly connected to a connecting plate 1 215, the end of the connecting plate 1 215 away from the slider 214 is fixedly connected to a fixing plate 216, and the bottom of the fixing plate 216 is fixedly connected to the annular plate 208. The purpose of this arrangement is to drive the slider 1 212 and the slider 214 to move along the trajectory of the sliding column 211 through the up and down movement of the circular plate and the annular plate 208, so as to avoid the circular plate and the annular plate 208 from positional displacement.

[0040] The pressurizing assembly 22 comprises a sliding plate 221, the bottom of which is fixedly connected to the annular plate 208, the inner wall of the sliding plate 221 is slidably connected to a sliding block 3 222, the outer wall of the sliding block 3 222 is rotatably connected to a connecting plate 223, the inner wall of the connecting plate 223 is fixedly connected to a circular plate 224, the end of the connecting plate 223 away from the sliding block 3 222 is rotatably connected to a connecting head 1 225, the end of the connecting head 1 225 away from the connecting plate 223 is fixedly connected to a connecting frame 3 226, the end of the connecting frame 3 226 away from the connecting head 1 225 is fixedly connected to the circular plate 1 206, the inner wall of the connecting head 1 225 is slidably connected to a sliding frame 1 227, the bottom of the sliding frame 1 227 is fixedly connected to a pressure plate 228, the top of the pressure plate 228 is fixedly connected to an extrusion plate 229, and the outer wall of the pressure plate 228 is fixedly connected to the sliding frame 22 10. The outer wall of the sliding frame 2210 is slidably connected with the connecting head 2211. The outer wall of the connecting head 2211 is rotatably connected with the connecting plate 223. The outer wall of the connecting plate 223 is sleeved with an elastic U-shaped rod 2212. The purpose of this arrangement is to drive the sliding block 3 222 to move outward along the trajectory of the sliding plate 221 through the connecting head 1 225 and the connecting plate 223 through the movement of the connecting frame 3 226. After the movement, the circular plate 224 of the connecting plate 223 will squeeze the elastic U-shaped rod 2212. When the connecting plate contacts the sliding plate 221, the squeezing plate 229 will squeeze the elastic U-shaped rod 2212, so that the central axis of the elastic U-shaped rod 2212 is deformed, and then the two ends of the elastic U-shaped rod 2212 will have an inward pressure, and the pressure of the sliding plate 221 on the annular plate 208 is enhanced by the pressure.

[0041] A method for using a marine ventilator comprises the following steps:

[0042] S1. When it is necessary to install a marine ventilator, first align the bottom of the lower hollow column 101 with the vent and insert it. After the bottom of the lower hollow column 101 is embedded in the vent, fix the mounting plate 1 to the ground with screws to complete the bottom installation;

[0043] S2. After installing the lower hollow column 101, place the sealed component 11 above the lower hollow column 101, align the positioning column of the lower hollow column 101 with the positioning hole 115 on the sealed component 11, and then align the positioning column at the bottom of the upper hollow column 104 with the positioning hole 115 and place it on the sealed component 11, and then fix the three together with bolts 114;

[0044] S3. After the installation is completed, the horizontal heights of the circular plate 206, the sealing ring 207, the annular plate 208 and the sealing block 209 can be controlled by starting the push rod 202, thereby controlling the air intake state of the marine ventilator;

[0045] S4. Finally, close all the ventilation holes, inspect the equipment, and spray water on the equipment with a water gun. After the water spraying is completed, inspect the equipment and its interior for any water leaks.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved structure of a marine ventilator, comprising a mounting plate (1), wherein a lower hollow column (101) is fixedly connected to the interior of the mounting plate (1), an arc-shaped ring plate (103) is fixedly connected to the outer wall of the lower hollow column (101), a protective plate (102) is fixedly connected to the side of the arc-shaped ring plate (103) away from the lower hollow column (101), the bottom of the protective plate (102) is fixedly connected to the mounting plate (1), the top of the protective plate (102) is fixedly connected to the lower hollow column (101), the end of the lower hollow column (101) away from the mounting plate (1) is fixedly connected to a sealing component (11), and the sealing component (11) is fixedly connected to the mounting plate (1). 1) An upper hollow column (104) is fixedly connected to a side away from the lower hollow column (101), an arc-shaped ring plate (105) is fixedly connected to an outer wall of the upper hollow column (104), a protective plate (106) is fixedly connected to a side of the arc-shaped ring plate (105) away from the upper hollow column (104), an exhaust plate (107) is fixedly connected to the outer wall of the upper hollow column (104), a bottom of the protective plate (106) is fixedly connected to the upper hollow column (104), a top of the upper hollow column (104) is fixedly connected to the exhaust plate (107), and a hollow outer shell (108) is fixedly connected to the outer wall of the exhaust plate (107), characterized in that: Also includes: The switch mechanism (2) comprises a mounting head (201) fixedly connected to the inner wall of an upper hollow column (104); a push rod (202) is fixedly connected to the top of the mounting head (201); a fixing ring (203) is fixedly connected to the outer wall of the push rod (202); the outer wall of the fixing ring (203) is fixedly connected to the upper hollow column (104); an end of the push rod (202) away from the mounting head (201) is fixedly connected to a connecting frame 1 (204); an end of the connecting frame 1 (204) away from the push rod (202) is fixedly connected to a conical column (205), a circular plate (206) is fixedly connected to one side of the conical column (205) away from the push rod (202), a sealing ring (207) is fixedly connected to the outer wall of the circular plate (206), a guide rail assembly (21) is fixedly connected to the top of the exhaust plate (107), a pressurizing assembly (22) is fixedly connected to the top of the circular plate (206), an annular plate (208) is fixedly connected to one end of the pressurizing assembly (22) away from the circular plate (206), and a sealing block (209) is fixedly connected to the bottom of the annular plate (208); The pressurizing assembly (22) comprises a sliding plate (221), the bottom of the sliding plate (221) is fixedly connected to the annular plate (208), the inner wall of the sliding plate (221) is slidably connected to a sliding block three (222), the outer wall of the sliding block three (222) is rotatably connected to a connecting plate two (223), the inner wall of the connecting plate two (223) is fixedly connected to a circular plate two (224), the end of the connecting plate two (223) away from the sliding block three (222) is rotatably connected to a connecting head one (225), the end of the connecting head one (225) away from the connecting plate two (223) is fixedly connected to a connecting frame three (226), the connecting frame three (226) away from the connecting head One end of the first connector (225) is fixedly connected to the first circular plate (206); the inner wall of the first connector (225) is slidably connected to a first sliding frame (227); the bottom of the first sliding frame (227) is fixedly connected to a pressure plate (228); the top of the pressure plate (228) is fixedly connected to an extrusion plate (229); the outer wall of the pressure plate (228) is fixedly connected to a second sliding frame (2210); the outer wall of the second sliding frame (2210) is slidably connected to a second connector (2211); the outer wall of the second connector (2211) is rotatably connected to a second connecting plate (223); and the outer wall of the second connecting plate (223) is sleeved with an elastic U-shaped rod (2212).

2. The improved structure of a marine ventilator according to claim 1, characterized in that: The sealing component (11) comprises a rubber plate (111), the outer wall of the rubber plate (111) is fixedly connected to a sealing rubber ring (112), the top of the rubber plate (111) is provided with a fixing hole (113), the inner wall of the fixing hole (113) is fixedly connected to a bolt (114), the outer wall of the bolt (114) is fixedly connected to the lower hollow column (101), the outer wall of the bolt (114) is fixedly connected to the upper hollow column (104), the top of the rubber plate (111) is provided with a positioning hole (115), and the inner wall of the positioning hole (115) is provided with a pressure equalizing groove (116).

3. The improved structure of a marine ventilator according to claim 2, characterized in that: The guide rail assembly (21) comprises a sliding column (211), the top of the sliding column (211) is fixedly connected to the hollow housing (108), the outer wall of the sliding column (211) is slidably connected to a sliding block 1 (212), the outer wall of the sliding block 1 (212) is fixedly connected to a connecting frame 2 (213), and one end of the connecting frame 2 (213) away from the sliding block 1 (212) is fixedly connected to a circular plate 1 (206).

4. The improved structure of a marine ventilator according to claim 3, characterized in that: The side of the sliding column (211) away from the sliding block one (212) is slidably connected to the sliding block two (214), the outer wall of the sliding block two (214) is fixedly connected to the connecting plate one (215), the end of the connecting plate one (215) away from the sliding block two (214) is fixedly connected to the fixing plate (216), and the bottom of the fixing plate (216) is fixedly connected to the annular plate (208).

5. A method for using a marine ventilator according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. When it is necessary to install a marine ventilator, first align the bottom of the lower hollow column (101) with the vent and insert it. After the bottom of the lower hollow column (101) is embedded in the vent, the mounting plate (1) is fixed to the ground with screws to complete the bottom installation. S2. After installing the lower hollow column (101), place the sealing component (11) above the lower hollow column (101), align the positioning column of the lower hollow column (101) with the positioning hole (115) on the sealing component (11), then align the positioning column at the bottom of the upper hollow column (104) with the positioning hole (115) and place it on the sealing component (11), and then fix the three together with bolts (114); S3. After the installation is completed, the horizontal heights of the circular plate 1 (206), the sealing ring (207), the annular plate (208), and the sealing block (209) can be controlled by simply starting the push rod (202), thereby controlling the air intake state of the marine ventilator; S4. Finally, close all the ventilation holes, inspect the equipment, and spray water on the equipment with a water gun. After the water spraying is completed, inspect the equipment and its interior for any water leaks.

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