Aerodynamic centralized air intake and exhaust device for ship plating

Abstract

A kind of aerodynamic centralized air intake and exhaust device of ship outer plate, multiple air vents are opened on cabin bulkhead, and each air vent is provided with aerodynamic centralized air intake and exhaust device, the air intake and exhaust device includes coaming, and is provided at the circumferential edge position of air vent;Ventilation cover, coaming is set on;Surrounding well, coaming and ventilation cover are all contained in surrounding well cavity, which is formed in the inner side of cabin bulkhead;Transmission connecting rod mechanism is used to realize the opening and closing of ventilation cover, and one end is inserted into surrounding well cavity;Pneumatic mechanism is installed on the outside of surrounding well and is connected with the one end of transmission connecting rod mechanism in surrounding well;Manual operating mechanism is installed on the outside of surrounding well and is also connected with the one end of transmission connecting rod mechanism in surrounding well.The advantages are as follows: avoid the corrosive damage of seawater to equipment and cabin bulkhead;Good effect of preventing sea wave invasion and meeting weather tightness requirement, good radar wave stealth performance;Realize hand-automatic integrated design and double centralized control, meet the use requirements in emergency or combat readiness situation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of marine equipment, and particularly relates to a pneumatic centralized air intake and exhaust device for a ship outer plate. BACKGROUND

[0002] In order to ensure the stable operation of a ship for a long time, important machine rooms such as a bow equipment cabin and a bow side push cabin are generally arranged at a bow part of the ship. Since the equipment arranged in the cabin will emit a large amount of heat during operation, a ventilation opening and a ventilation device are arranged at a corresponding cabin position of the ship bow equipment cabin and the bow side push cabin. Specifically, a ventilation opening is opened on the ship outer plate, and a ventilation system is arranged to timely exhaust the heat in the equipment cabin to the outside space, so as to ensure the normal operation of the important equipment and ensure that the air quality in the cabin meets the requirements of personnel work and life. The existing arrangement mode of the ship ventilation opening is generally to directly open the opening on the cabin outer plate. The opening will affect the overall appearance of the ship, and a visual pitted feeling is generated, which is very unsightly. Therefore, a ventilation cover plate is arranged at the opening. When the cabin inside needs to be ventilated, the ventilation cover plate is opened to realize air intake and exhaust operation.

[0003] There are also relevant technical information about such ventilation openings and ventilation cover plates in existing Chinese patent documents, such as CN216546576U (a ventilation cover plate for a ship cabin cover), CN207241957U (a ship cabin cover), CN206255153U (a rainproof cover with heating and rainwater separation), etc. A typical example is the ship quick-opening ventilation cover disclosed in CN116409430A, which sets a side hook connecting rod on one side of the cover plate and a locking assembly at the lower part of the cover plate, and fixes the lower end of the side hook connecting rod to the cover plate through a fastening bolt and connects the upper part to the cover plate through a limiting bolt. When working, the cover plate is opened or closed by using an operating lever, and the cover plate is locked in the open state by using the limiting bolt, finally realizing the quick opening and closing of the cover plate, which has the advantages of flexible and convenient operation, fast opening and closing response speed, and can also meet the requirements of ship classification society for rainproof. However, this scheme has the common problems of the above-mentioned patent documents: on the one hand, the manual control lever is needed to open or close the cover plate, and since there are many ventilation cover plates and each has a large weight, it is very difficult to open them, and there is a certain safety hazard in the closing process; on the other hand, during the opening of the cover plate, seawater will inevitably flow into the cabin through the ventilation opening, causing seawater to accumulate in the cabin and increasing the overall humidity, leading to corrosion and damage of the equipment in the cabin, and the above-mentioned documents do not provide technical inspiration on how to prevent seawater from entering the cabin and avoid equipment corrosion. In addition, for military ships, in order to improve their stealth performance and improve their technical and tactical level, the sealing effect of the ventilation opening must be ensured when it is closed, otherwise the electromagnetic wave entering from the ventilation opening will be refracted back to the outside after multiple refractions, which will easily form a strong RCS (fusion communication) target, affecting the stealth performance of the entire ship body. The existing cabin ventilation cover plate cannot meet the RCS requirement after being closed, affecting the combat performance of military ships.

[0004] Therefore, it is necessary to reasonably improve the existing cabin ventilation cover plate, and the technical solution to be introduced below is produced in this background. SUMMARY

[0005] The present application aims to provide a ship outer plate pneumatic centralized ventilation device which helps to prevent equipment corrosion and improve equipment service life by setting a surrounding well inside the cabin bulkhead, and helps to achieve superior anti-sea wave invasion effect and superior radar wave stealth performance by setting a two-section ventilation cover with inner and outer plates, and facilitates manual and automatic dual centralized control to improve use convenience and meet various environmental use requirements.

[0006] The purpose of the present application is achieved by a kind of aerodynamic centralized air intake and exhaust device of ship outer plate, several air vents are opened in cabin bulkhead, and a aerodynamic centralized air intake and exhaust device is respectively arranged at each air vent, the aerodynamic centralized air intake and exhaust device includes a coaming, the coaming is protrudingly formed at the circumferential edge position of air vent;A ventilation cover is used to open or close the air vent, and the ventilation cover is sleeved on the coaming;A coffer is formed inside the cabin bulkhead, and the coffer is internally formed as a coffer cavity, the coaming and ventilation cover are all accommodated in the coffer cavity;A transmission linkage mechanism is used to realize the opening and closing of ventilation cover, and one end of the transmission linkage mechanism is inserted into the coffer cavity;A pneumatic mechanism is fixedly installed on the outside of the coffer and is in transmission connection with the end of transmission linkage mechanism inside the coffer;A manual operating mechanism is also fixedly installed on the outside of the coffer and is in transmission connection with the end of transmission linkage mechanism inside the coffer.

[0007] In a specific embodiment of the present application, the coaming includes a top panel, side panels formed on both sides thereof and a bottom panel, the coaming is inserted into the coffer cavity, and the bottom panel is arranged to extend obliquely towards the coffer cavity.

[0008] In another specific embodiment of the present application, the ventilation cover includes an outer sealing plate, an inner sealing plate and a connecting frame body arranged therebetween;The outer sealing plate is used to cover the air vent, and when the air vent is in a closed state, a gap is formed between the circumferential outer edge of the outer sealing plate and the inner wall of the air vent, and at this time, the inner sealing plate is arranged at the end position of the coaming away from the air vent;The plate area of the outer sealing plate is smaller than that of the inner sealing plate, the connecting frame body includes a tapered portion and a connecting cylinder portion, one end of the tapered portion is formed on the inner side surface of the outer sealing plate and the tapered portion is arranged to extend and expand towards the connecting frame body, that is, the cross-sectional area of the tapered portion gradually increases from one end close to the outer sealing plate to the other end, the connecting cylinder portion is formed at the end position of the tapered portion away from the outer sealing plate, and the connecting cylinder portion is connected to one side surface of the inner sealing plate, and a sealing ring stop edge is formed at the circumferential edge of the inner sealing plate towards the air vent, the space between the connecting cylinder portion and the sealing ring stop edge forms a sealing ring fitting groove, a sealing ring is fitted in the sealing ring fitting groove, when the air vent is in a closed state, the end part of the coaming away from the air vent is inserted into the sealing ring fitting groove and abuts on the sealing ring, and the space between the coaming and the connecting frame body forms a sealing drainage chamber.

[0009] In still another specific embodiment of the present application, a coffer drainage opening is further arranged at the bottom of the coffer, and an inspection cover is detachably installed on the coffer.

[0010] In still another specific embodiment of the present application, a plurality of air outlet openings are formed in the enclosure, and a fixed shutter is installed in the air outlet openings.

[0011] In still another specific embodiment of the present application, the transmission linkage mechanism comprises a mounting bracket, a power input shaft, a lower rocker arm, a connecting rod, an upper rocker arm, a transmission shaft and a pair of guide rods; the mounting bracket is arranged outside the enclosure and fixedly installed on the body of the enclosure, the power input shaft is slidingly connected to the mounting bracket and is in transmission connection with the pneumatic mechanism and the manual operating mechanism, the power input shaft penetrates into the enclosure, one end of the lower rocker arm is provided with a lower rocker arm sleeve, and the other end of the lower rocker arm is hingedly connected to one end of the connecting rod, the lower rocker arm sleeve is sleeved on and fixed to the power input shaft; the transmission shaft is transversely arranged at a position close to the top end of the rear part of the ventilation cover, a pair of transmission shaft positioning plates are arranged on the cabin bulkhead and spaced apart from each other on the left and right sides of the ventilation cover, the transmission shaft penetrates through the two transmission shaft positioning plates and is in transmission connection therewith, one end of the upper rocker arm is provided with an upper rocker arm sleeve, the upper rocker arm sleeve is fixedly sleeved on the end of the transmission shaft, and the other end of the upper rocker arm is hingedly connected to the other end of the connecting rod away from the lower rocker arm, so as to connect the connecting rod and the transmission shaft, one end of each of the two guide rods is provided with a guide rod connecting sleeve, the guide rod connecting sleeve is sleeved on the shaft body of the transmission shaft and is fixedly connected thereto, a guide groove is formed in the guide rod and extends from the other end of the guide rod away from the guide rod connecting sleeve to the middle part of the guide rod, a guide shaft is arranged in the guide groove and is in sliding fit with the guide groove and can reciprocatingly slide in the guide groove; two pairs of guide shaft connecting plates are arranged on the side surface of the ventilation cover opposite to the ventilation opening and close to the bottom end, and the two ends of the guide shaft are hingedly connected to the guide shaft connecting plates on the left and right sides thereof.

[0012] In a further specific embodiment of the present application, the pneumatic mechanism comprises a cylinder body, a piston rod, a lifting rod, a sliding shaft and a pneumatic swing arm; the cylinder body is arranged outside the enclosure and fixedly installed on the enclosure, the piston rod is arranged in the cylinder body and vertically extends and is capable of extending and retracting relative to the cylinder body, the lifting rod is sleeved on the upper end of the piston rod and is provided with a lifting rod connecting plate at the upper end thereof, the lifting rod connecting plate is arranged transversely and is provided with a lifting rod connecting plate through slot, the sliding shaft is in sliding fit with the lifting rod connecting plate through slot and is capable of reciprocating sliding in the lifting rod connecting plate through slot, one end of the pneumatic swing arm is hinged to the sliding shaft, and the other end of the pneumatic swing arm constitutes a pneumatic swing arm sleeve which is sleeved and fixed on the shaft body of the power input shaft.

[0013] In a further specific embodiment of the present application, the manual operating mechanism comprises a steering wheel disc, a steering transmission rod and a steering transmission box, the steering wheel disc is arranged at one end of the steering transmission rod, the other end of the steering transmission rod is inserted into the steering transmission box, the steering transmission box is fixedly installed on the mounting bracket of the transmission linkage mechanism, one end of the power input shaft is also inserted into the steering transmission box, and the steering transmission rod and the power input shaft are in transmission connection.

[0014] In a further specific embodiment of the present application, a bearing seat is fixedly installed on each of the two transmission shaft positioning plates and at a position corresponding to the transmission shaft, the transmission shaft passes through the two bearing seats and is in rotational connection with the bearing seats, and the transmission shaft and the bearing in the bearing seat are in fit connection.

[0015] In yet another specific embodiment of the present application, a positioning mechanism is further connected to the top of the fence, which includes a pair of positioning swing arms and a pair of cover body connecting arms. The two positioning swing arms are spaced apart and each has an L-shaped plate structure, and each has a positioning swing arm fixed portion and a positioning swing arm bending portion bent at the upper end of the positioning swing arm fixed portion. The positioning swing arm fixed portions of the two positioning swing arms are respectively fixedly installed on the side panels on both sides of the fence, and a positioning swing arm hinged sleeve is formed at the end of the positioning swing arm bending portion away from the positioning swing arm fixed portion. The positioning swing arm hinged sleeve is sleeved on the shaft of the transmission shaft and is hinged with the transmission shaft. The two cover body connecting arms are also spaced apart and have an L-shaped plate structure. Each of the two cover body connecting arms has a cover body connecting arm hinged portion and a cover body connecting arm fixed portion bent on the cover body connecting arm hinged portion. The cover body connecting arm fixed portion and the cover body connecting arm hinged portion are perpendicular to each other. Two pairs of cover body connecting arm hinged plates are formed on the top panel of the fence at positions corresponding to the two cover body connecting arms. One end of the cover body connecting arm hinged portion passes through the two cover body connecting arm hinged plates and is hinged with the cover body connecting arm hinged plates through a hinge shaft. The cover body connecting arm fixed portion is fixedly installed on the top of the side surface of the ventilation cover opposite to the ventilation opening.

[0016] The technical effect of the technical scheme provided by the application is that: first, by arranging the surrounding well capable of covering the ventilation opening in the cabin bulkhead, and the surrounding plate and the ventilation cover are contained in the surrounding well cavity, and the pneumatic mechanism and the manual operating mechanism are installed outside the surrounding well, on the one hand, when the ventilation cover is in the open state, seawater can flow into the surrounding well cavity through the ventilation opening, the surrounding well can collect seawater and discharge it outward through the surrounding well drain port at the bottom, avoiding the corrosive damage of seawater to the equipment and the cabin bulkhead, on the other hand, a plurality of air outlets are also arranged on the surrounding well, the fixed louver is arranged on the air outlet and can be connected with the air pipe, the exhaust ventilation operation is realized, and the applicability is good; second, the ventilation cover is a two-section inner and outer plate structure including an outer sealing plate and an inner sealing plate, and a connecting frame body is arranged between the outer sealing plate and the inner sealing plate, when the outer sealing plate is closed at the ventilation opening, a gap is formed between the outer edge of the outer sealing plate and the inner side wall of the surrounding plate, and the end of the surrounding plate abuts on the sealing ring in the sealing ring fitting groove, so that the surrounding plate and the connecting frame body form a sealed drainage chamber, seawater can enter the sealed drainage chamber through the gap between the outer sealing plate and the surrounding plate, and seawater can flow out of the gap again due to the closed rear end of the sealed drainage chamber and the inclined state of the sealed drainage chamber, achieving excellent anti-sea wave invasion effect and meeting the weather-tight requirement, and the ventilation cover can form an integral whole with the cabin bulkhead after being closed, which is beautiful and clean, and has excellent radar wave stealth performance; third, the pneumatic mechanism and the manual operating mechanism are in transmission connection with the transmission connecting rod mechanism, realizing the hand-automatic integrated design and double centralized control, which is time-saving and labor-saving, very convenient, and when the cylinder body of the pneumatic mechanism has no gas, the ventilation cover can be opened or closed for emergency driving operation through the manual operating mechanism, meeting the use requirement in emergency or combat readiness situation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the embodiment of the application.

[0018] Figure 2 It is the overall structure diagram of the embodiment of the application. Figure 1 It is the overall structure diagram of the embodiment of the application.

[0019] Figure 3 It is the overall structure diagram of the embodiment of the application.

[0020] Figure 4 It is the overall structure diagram of the embodiment of the application.

[0021] Figure 5 It is the overall structure diagram of the embodiment of the application.

[0022] Figure 6 It is the overall structure diagram of the embodiment of the application.

[0023] Figure 7 This is a schematic diagram of the connection mechanism between the positioning mechanism and the ventilation cover in this invention.

[0024] In the diagram: 1. Bulkhead, 11. Ventilation opening, 12. Drive shaft positioning plate, 121. Bearing seat; 2. Cofferdam, 21. Top panel, 211. Hinge plate of cover connecting arm, 22. Side panel, 23. Bottom panel; 3. Ventilation cover, 31. Outer sealing plate, 32. Inner sealing plate, 321. Sealing ring retainer, 322. Sealing ring fitting groove, 33. Connecting frame, 331. Conical part, 332. Connecting cylinder part, 34. Sealing ring, 35. Guide shaft connecting plate; 4. Well, 41. Well cavity, 42. Well drainage outlet, 43. Inspection cover, 44. Air outlet, 441. Fixed louver; 5. Transmission linkage mechanism, 51. Mounting bracket, 52. Power input shaft, 53. Lower rocker arm, 531. Lower rocker arm sleeve, 54. Connecting rod, 55. Upper rocker arm. 551. Upper rocker arm sleeve; 56. Drive shaft; 57. Guide rod; 571. Guide rod connecting sleeve; 572. Guide groove; 573. Guide shaft; 6. Pneumatic mechanism; 61. Cylinder body; 62. Piston rod; 63. Lifting rod; 631. Lifting rod connecting plate; 6311. Lifting rod connecting plate through groove; 64. Sliding shaft; 65. Pneumatic swing arm; 651. Pneumatic swing arm sleeve; 7. Manual operating mechanism; 71. Control wheel; 72. Control transmission rod; 73. Control transmission box; 8. Positioning mechanism; 81. Positioning swing arm; 811. Positioning swing arm fixing part; 812. Positioning swing arm bending part; 8121. Positioning swing arm hinge sleeve; 82. Cover connecting arm; 821. Cover connecting arm hinge part; 822. Cover connecting arm fixing part; 9. Sealed drainage chamber. Detailed Implementation

[0025] To better understand the technical essence and beneficial effects of the present invention, detailed descriptions will be provided below using embodiments. However, the descriptions of the embodiments are not intended to limit the scope of the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0026] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are, unless otherwise specified, based on... Figure 1 The position and state are based on the present invention and should not be construed as a particular limitation on the technical solution provided by the present invention.

[0027] Please see Figure 1 and combined Figures 2 to 7The application discloses a kind of aerodynamic centralized air intake and exhaust device of ship outer plate, and several air vents 11 are opened on cabin bulkhead 1.As the technical points of the technical scheme provided by the application: a aerodynamic centralized air intake and exhaust device is respectively arranged at each of the aforementioned air vents 11, which can be used for ship bow ventilation and can withstand wave impact, specifically including a coaming 2, which is protrudingly formed at the circumferential edge position of the air vent 11, and the coaming 2 is perpendicular to the aforementioned cabin bulkhead 1;A ventilation cover 3 is used to open or close the aforementioned air vent 11, and the ventilation cover 3 is sleeved on the aforementioned coaming 2;A well 4 is formed inside the cabin bulkhead 1, and the well 4 is internally formed as a well cavity 41, and the coaming 2 and the ventilation cover 3 are both accommodated in the well cavity 41;A transmission linkage mechanism 5 is used to realize the opening and closing of the ventilation cover 3, and one end of the transmission linkage mechanism 5 penetrates into the aforementioned well cavity 41;An air-operated mechanism 6 is fixedly installed on the outside of the aforementioned well 4 and is in transmission connection with the end of the transmission linkage mechanism 5 inside the well 4;A manual operating mechanism 7 is also fixedly installed on the outside of the aforementioned well 4 and is in transmission connection with the end of the transmission linkage mechanism 5 inside the well 4.

[0028] It is worth mentioning that the air-operated mechanism 6 and the manual operating mechanism 7 in the device are both arranged outside the well 4, which can effectively isolate seawater splashing through the barrier of the well 4, meet the corrosion prevention requirement, avoid damage of the air-operated mechanism 6 and the manual operating mechanism 7 caused by rust, and facilitate connection of air circuit and electric circuit and subsequent maintenance and repair work.

[0029] In the embodiment, the coaming 2 includes a top panel 21, side panels 22 formed on both sides thereof and a bottom panel 23, the coaming 2 penetrates into the aforementioned well cavity 41, and the bottom panel 23 extends obliquely towards the well cavity 41, the obliquely arranged bottom panel 23 can facilitate overturning movement of the ventilation cover 3 and avoid component interference.

[0030] Please continue to see Figure 1 and combine Figure 4 with Figure 6The ventilation cover 3 comprises an outer sealing plate 31, an inner sealing plate 32 and a connecting frame body 33 arranged between the two plates. The outer sealing plate 31 is arranged on the ventilation port 11 and has a gap between its outer edge and the inner wall of the ventilation port 11 when the ventilation port 11 is closed. The inner sealing plate 32 is arranged on the end of the surrounding plate 2 away from the ventilation port 11. The area of the outer sealing plate 31 is smaller than that of the inner sealing plate 32. The connecting frame body 33 comprises a tapered portion 331 and a connecting cylinder portion 332. The tapered portion 331 is arranged on the inner side surface of the outer sealing plate 31 and extends towards the connecting frame body 33. The cross-sectional area of the tapered portion 331 gradually increases from one end to the other end. The connecting cylinder portion 332 is arranged on the end of the tapered portion 331 away from the outer sealing plate 31 and is connected to one side surface of the inner sealing plate 32. A sealing ring stopper 321 is arranged on the circumferential edge of the inner sealing plate 32 towards the ventilation port 11. The space between the sealing ring stopper 321 and the connecting cylinder portion 332 forms a sealing ring fitting groove 322. A sealing ring 34 is fitted in the sealing ring fitting groove 322. When the ventilation port 11 is closed, the end of the surrounding plate 2 away from the ventilation port 11 is inserted into the sealing ring fitting groove 322 and is arranged on the sealing ring 34. The space between the surrounding plate 2 and the connecting frame body 33 forms a sealing drainage chamber 9.

[0031] It should be noted that: Figure 3 With Figure 4As shown, when the outer sealing plate 31 is closed at the vent 11, a gap is formed between the outer edge of the outer sealing plate 31 and the inner side wall of the coaming 2, and the end of the coaming 2 abuts on the sealing ring 34 in the sealing ring fitting groove 322, so that when the coaming 2 and the connecting frame body 33 form the sealed drainage chamber 9, seawater can enter the sealed drainage chamber 9 through the gap between the outer sealing plate 31 and the coaming 2, and seawater can flow out of the gap again due to the closed rear end of the sealed drainage chamber 9 and the inclined state of the sealed drainage chamber 9, achieving excellent drainage effect; at the same time, after the ventilation cover 3 is closed, the cabin bulkhead 1 has excellent radar wave stealth effect and meets the corresponding RCS (Radar Cross Section) requirements, and according to the HJB180-1998 total RCS calculation method, the YS louver half-cycle RCS per square meter in the X and Ku wave bands is not greater than 0.4㎡, and the internal cavity scattering reduction effect of the ventilation cover 3 is better than -10dB; and after the ventilation cover 3 is completed, a water flushing test needs to be performed according to CB*3273-85 "Ship Aerodynamic Ventilation Cover Closed to Meet the Weatherproof Requirements, Tightness Test of Ship Doors, Windows, and Covers", the nozzle diameter is 16mm and the water pressure at the nozzle outlet is 0.2MPa, the nozzle distance from the sealing surface is less than or equal to 1.5m, the time is 3min, and the inside of the equipment is guaranteed to have no water droplets seeping out, so as to have excellent waterproof and seawave invasion prevention performance.

[0032] In the present embodiment, a coaming drainage opening 42 is further provided at the bottom of the aforementioned coaming 4, and a maintenance cover 43 is detachably installed on the coaming 4.

[0033] Further, a plurality of coaming air outlets 44 are further provided on the coaming 4, and a fixed louver 441 is installed at the coaming air outlets 44; a wind pipe can be connected to the coaming air outlets 44, facilitating ventilation and exhaust operation.

[0034] Please refer to Figure 2 and combine with Figure 3 and Figure 5The transmission linkage 5 comprises a mounting bracket 51, a power input shaft 52, a lower rocker arm 53, a connecting rod 54, an upper rocker arm 55, a transmission shaft 56 and a pair of guide rods 57. The mounting bracket 51 is arranged outside the enclosure 4 and fixedly mounted on the body of the enclosure 4. The power input shaft 52 is slidingly connected to the mounting bracket 51 and drivingly connected to the pneumatic mechanism 6 and the manual operating mechanism 7. The power input shaft 52 penetrates into the enclosure 4. The lower rocker arm 53, the connecting rod 54, the upper rocker arm 55, the transmission shaft 56 and the pair of guide rods 57 are arranged in the enclosure cavity 41. One end of the lower rocker arm 53 is provided with a lower rocker arm sleeve 531. The other end of the lower rocker arm 53 is hingedly connected to one end of the connecting rod 54. The lower rocker arm sleeve 531 is sleeved on the power input shaft 52 and fixedly connected thereto. The transmission shaft 56 is transversely arranged near the top end of the rear part of the ventilation cover 3. A pair of transmission shaft positioning plates 12 are arranged on the cabin bulkhead 1 and spaced apart on the left and right sides of the ventilation cover 3. The transmission shaft 56 penetrates through the two transmission shaft positioning plates 12 and drivingly connected thereto. One end of the upper rocker arm 55 is provided with an upper rocker arm sleeve 551. The upper rocker arm sleeve 551 is fixedly sleeved on one end of the transmission shaft 56. The other end of the upper rocker arm 55 is hingedly connected to the other end of the connecting rod 54 away from the lower rocker arm 53, thereby connecting the connecting rod 54 and the transmission shaft 56. The other ends of the two guide rods 57 are provided with guide rod connecting sleeves 571. The guide rod connecting sleeves 571 are sleeved on the shaft body of the transmission shaft 56 and fixedly connected thereto. A guide groove 572 is formed in the guide rod 57 and extends from the other end of the guide rod 57 away from the guide rod connecting sleeve 571 to the middle part of the guide rod 57. A guide shaft 573 is arranged in the guide groove 572 and slidingly connected to the guide groove 572 and can reciprocatingly slide in the guide groove 572. Two pairs of guide shaft connecting plates 35 are arranged on the side surface of the ventilation cover 3 opposite to the ventilation port 11 and near the bottom end. The two ends of the guide shaft 573 are hingedly connected to the guide shaft connecting plates 35 on the left and right sides, respectively.

[0035] In the embodiment, the pneumatic mechanism 6 comprises a cylinder body 61, a piston rod 62, a lifting rod 63, a sliding shaft 64 and a pneumatic swing arm 65. The cylinder body 61 is arranged outside the enclosure 4 and fixedly installed on the enclosure 4. The piston rod 62 is arranged in the cylinder body 61 and vertically extends and is capable of extending and retracting relative to the cylinder body 61. The lifting rod 63 is sleeved on the upper end of the piston rod 62 and a lifting rod connecting plate 631 is arranged on the upper end of the lifting rod 63. The lifting rod connecting plate 631 is arranged transversely and a lifting rod connecting plate through slot 6311 is formed on the lifting rod connecting plate 631. The sliding shaft 64 is slidably connected with the lifting rod connecting plate through slot 6311. One end of the pneumatic swing arm 65 is hingedly connected with the sliding shaft 64 and the other end of the pneumatic swing arm 65 is provided with a pneumatic swing arm sleeve 651 which is sleeved and fixed on the shaft body of the power input shaft 52.

[0036] Further, the manual operating mechanism 7 comprises a steering wheel 71, a steering transmission rod 72 and a steering transmission box 73. The steering wheel 71 is arranged at one end of the steering transmission rod 72 and the other end of the steering transmission rod 72 is arranged in the steering transmission box 73. The steering transmission box 73 is fixedly installed on the mounting bracket 51 of the transmission linkage mechanism 5. One end of the power input shaft 52 is also arranged in the steering transmission box 73. The steering transmission rod 72 and the power input shaft 52 are transmissionally connected.

[0037] When the ventilation cover 3 needs to be turned over, the pneumatic mechanism 6 is controlled to work by the electromagnetic valve box. The piston rod 62 and the lifting rod 63 are moved and drive the sliding shaft 64 and the pneumatic swing arm 65 to move. The pneumatic swing arm 65 is rotated and drives the power input shaft 52 to rotate. The power input shaft 52 further drives the lower rocker arm 53, the connecting rod 54 and the upper rocker arm 55 to move in linkage. The transmission shaft 56 is rotated and drives the two guide rods 57 to rotate. The guide rods 57 drive the guide shaft 573 connected therewith to move and turn over the ventilation cover 3. Thus, the ventilation cover 3 is opened or closed. When the cylinder body 61 of the pneumatic mechanism 6 has no gas source, the power input shaft 52 is rotated by rotating the steering wheel 71 of the manual operating mechanism 7. Thus, the ventilation cover 3 is manually opened or closed.

[0038] In the embodiment, a bearing seat 121 is fixedly installed on each of the two transmission shaft positioning plates 12 and corresponds to the transmission shaft 56. The transmission shaft 56 passes through the two bearing seats 121 and is rotationally connected with the bearing seats 121. The transmission shaft 56 and the bearing in the bearing seat 121 are connected together.

[0039] Further, please refer to Figure 7 , the top of the aforementioned fence 2 is also connected with a positioning mechanism 8, the aforementioned positioning mechanism 8 comprises a pair of positioning swing arms 81 and a pair of cover connecting arms 82; two aforementioned positioning swing arms 81 are arranged at intervals and are both L-shaped plate structures, and both of the two positioning swing arms 81 have a positioning swing arm fixed part 811 and a positioning swing arm bending part 812 which is bent at the upper end of the positioning swing arm fixed part 811, the positioning swing arm fixed parts 811 of the two aforementioned positioning swing arms 81 are respectively fixedly installed on the side panels 22 on both sides of the aforementioned fence 2, and a positioning swing arm hinge sleeve 8121 is formed at the end of the positioning swing arm bending part 812 away from the positioning swing arm fixed part 811, the positioning swing arm hinge sleeve 8121 is sleeved on the shaft body of the aforementioned transmission shaft 56 and is hinged with the transmission shaft 56; two aforementioned cover connecting arms 82 are also arranged at intervals and are L-shaped plate structures, both of the two aforementioned cover connecting arms 82 have a cover connecting arm hinge part 821 and a cover connecting arm fixed part 822 which is bent on the cover connecting arm hinge part 821, and the cover connecting arm fixed part 822 and the cover connecting arm connecting part 821 are formed in a perpendicular state, and two pairs of cover connecting arm hinge plates 211 are formed on the top panel 21 of the aforementioned fence 2 and at positions corresponding to the two cover connecting arms 82, one end of the aforementioned cover connecting arm hinge part 821 is threaded through the two cover connecting arm hinge plates 211 and is hinged with the cover connecting arm hinge plates 211 through a hinge shaft, and the aforementioned cover connecting arm fixed part 822 is fixedly installed on the top position of the side surface of the aforementioned ventilation cover 3 opposite to the aforementioned ventilation port 11, and the cover connecting arm fixed part 822 can be fixedly connected with the ventilation cover 3 by welding.

[0040] Please refer to Figure 1 and in combination with Figures 2 to 7 , the applicant briefly describes the working principle of the technical solution provided by the present application: first, when the ship is normally sailing, the ventilation cover 3 at the bow of the ship is in an open state, as shown in Figure 4 and Figure 5As shown, at this time, the ventilation opening 11 is ventilated, and seawater can enter the enclosure cavity 41 through the ventilation opening 11 and be discharged outward through the enclosure drain 42, thereby effectively reducing the corrosive damage of seawater to the equipment; when the ship needs to close the ventilation cover 3 in other situations such as performing corresponding combat tasks or being in an environment with large waves, wind and rain, etc., the electromagnetic valve box drives the working of the pneumatic mechanism 6, so that the piston rod 62 moves upward and drives the lifting rod 63 and the pneumatic swing arm 65 to move together, and drives the power input shaft 52 of the transmission linkage mechanism 5 to rotate, and the power input shaft 52 drives the lower rocker arm 53, the connecting rod 54 and the upper rocker arm 55 to move, so that the transmission shaft 56 rotates, and drives the guide pull rod 57 to rotate downward around the transmission shaft 56, the guide shaft 573 also moves in the guide groove 572 of the guide pull rod 57, and finally drives the ventilation cover 3 to move towards the ventilation opening 11 and finally move to be flush with the ship cabin bulkhead 1, when the pneumatic mechanism 6 is broken, the cylinder body can also drive the power input shaft 52 to rotate by rotating the aforementioned manual operation mechanism 7, and the rotation of the ventilation cover 3 is realized through the transmission of the transmission linkage mechanism 5, as Figure 2 With Figure 3 As shown, at this time, the ventilation cover 3 is in a closed state and closed at the ventilation opening 11, the ventilation cover 3 can not be displaced and deflected after being subjected to wave beating, the ventilation cover 3 can form an integral whole with the ship cabin bulkhead 1, can have good radar wave stealth effect and excellent visual effect, and also has superior performance of preventing wave invasion and rainwater; when the ventilation cover 3 needs to be opened again, the pneumatic mechanism 6 or the manual operation mechanism 7 can be driven to make the transmission linkage mechanism 5 drive the ventilation cover 3 to flip backward, so that the ventilation opening 11 is in an open state again.

[0041] In summary, the technical scheme provided by the present application remedies the shortcomings in the prior art, successfully completes the invention task, and truly realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A centralized air supply and exhaust device for a ship's outer plate, a plurality of air vents (11) are formed on the cabin bulkhead (1), characterized in that: A pneumatic centralized air intake and exhaust device is arranged at each said air vent (11), which includes a coaming (2) protruding at the circumferential edge of the air vent (11), an air cover (3) for opening or closing the air vent (11), which is sleeved on the coaming (2), a coaming well (4) formed inside the cabin bulkhead (1), the coaming (2) and the air cover (3) are both accommodated in the coaming well (41), a transmission linkage (5) for opening and closing the air cover (3), one end of which is inserted into the coaming well (41), a pneumatic mechanism (6) fixedly installed outside the coaming well (4) and in transmission connection with one end of the transmission linkage (5) inside the coaming well (4), and a manual operating mechanism (7) also fixedly installed outside the coaming well (4) and in transmission connection with one end of the transmission linkage (5) inside the coaming well (4).

2. The aerodynamic centralized air intake and exhaust system for a ship's hull as claimed in claim 1, wherein: The coaming (2) includes a top panel (21), side panels (22) formed on both sides thereof and a bottom panel (23), which is inserted into the coaming well (41) and extends obliquely towards the coaming well (41).

3. The aerodynamic centralized air intake and exhaust system for a ship according to claim 1, wherein: The ventilation cover (3) comprises an outer sealing plate (31), an inner sealing plate (32) and a connecting frame body (33) arranged between the two; the outer sealing plate (31) is arranged at the ventilation opening (11), and when the ventilation opening (11) is in a closed state, a gap is formed between the circumferential outer edge of the outer sealing plate (31) and the inner wall of the ventilation opening (11), and at this time, the inner sealing plate (32) is arranged at the end position of the surrounding plate (2) away from the ventilation opening (11); the plate area of the outer sealing plate (31) is smaller than that of the inner sealing plate (32), the connecting frame body (33) comprises a tapered portion (331) and a connecting cylinder portion (332), one end of the tapered portion (331) is arranged on the inner side surface of the outer sealing plate (31) and extends towards the connecting frame body (33), that is, the cross-sectional area of the tapered portion (331) gradually increases from one end close to the outer sealing plate (31) to the other end, the connecting cylinder portion (332) is arranged at the end position of the tapered portion (331) away from the outer sealing plate (31), and is connected to one side surface of the inner sealing plate (32), and a sealing ring stop edge (321) is arranged at the circumferential edge of the inner sealing plate (32) towards the ventilation opening (11), the space between the sealing ring stop edge (321) and the connecting cylinder portion (332) forms a sealing ring fitting groove (322), a sealing ring (34) is fitted and installed in the sealing ring fitting groove (322), when the ventilation opening (11) is in a closed state, the end portion of the surrounding plate (2) away from the ventilation opening (11) is inserted into the sealing ring fitting groove (322) and is arranged on the sealing ring (34), and the space between the surrounding plate (2) and the connecting frame body (33) forms a sealing drainage chamber (9).

4. The aerodynamic centralized air intake and exhaust system for a ship according to claim 1, wherein: A surrounding well drainage opening (42) is further arranged at the bottom of the surrounding well (4), and an inspection cover (43) is detachably installed on the surrounding well (4).

5. The aerodynamic centralized air intake and exhaust system for a ship according to claim 1, wherein: A plurality of surrounding well air outlets (44) are further arranged on the surrounding well (4), and a fixed louver (441) is further installed at the surrounding well air outlet (44).

6. The aerodynamic centralized air intake and exhaust system for a ship according to claim 2, wherein: The transmission linkage (5) comprises a mounting bracket (51), a power input shaft (52), a lower rocker arm (53), a connecting rod (54), an upper rocker arm (55), a transmission shaft (56) and a pair of guide pull rods (57); the mounting bracket (51) is arranged outside the enclosure (4) and fixedly installed on the body of the enclosure (4), the power input shaft (52) is slidingly connected to the mounting bracket (51), and the power input shaft (52) is in transmission connection with the pneumatic mechanism (6) and the manual operating mechanism (7); the power input shaft (52) penetrates into the enclosure (4); one end of the lower rocker arm (53) is provided with a lower rocker arm sleeve (531), and the other end of the lower rocker arm (53) is hingedly connected to one end of the connecting rod (54) in the length direction; the lower rocker arm sleeve (531) is sleeved on the power input shaft (52) and fixedly connected thereto; the transmission shaft (56) is transversely arranged at a position close to the top end of the rear end of the ventilation cover (3); a pair of transmission shaft positioning plates (12) are arranged on the cabin bulkhead (1) and spaced apart on the left and right sides of the ventilation cover (3); the transmission shaft (56) penetrates through the two transmission shaft positioning plates (12) and is in transmission connection with them; one end of the upper rocker arm (55) is provided with an upper rocker arm sleeve (551) fixedly sleeved on the end of the transmission shaft (56) in the length direction; the other end of the upper rocker arm (55) is hingedly connected to the end of the connecting rod (54) away from the lower rocker arm (53) in the length direction, so as to realize the connection between the connecting rod (54) and the transmission shaft (56); one end of each of the two guide pull rods (57) is provided with a guide pull rod connecting sleeve (571) sleeved on the shaft body of the transmission shaft (56) and fixedly connected thereto; a guide groove (572) is formed in the guide pull rod (57) and extends from the other end of the guide pull rod (57) away from the guide pull rod connecting sleeve (571) to the middle of the guide pull rod (57); a guide shaft (573) is arranged in the guide groove (572) and slidingly matched with the guide groove (572) and capable of reciprocating in the guide groove (572); two pairs of guide shaft connecting plates (35) are arranged on the side surface of the ventilation cover (3) opposite to the air vent (11) and close to the bottom end; and the two ends of the guide shaft (573) are hingedly connected to the guide shaft connecting plates (35) on the left and right sides, respectively.

7. The aerodynamic centralized air intake and exhaust system for a ship according to claim 6, characterized in that: The pneumatic mechanism (6) comprises a cylinder body (61), a piston rod (62), a lifting rod (63), a sliding shaft (64) and a pneumatic swing arm (65); the cylinder body (61) is arranged outside the enclosure (4) and fixedly installed on the enclosure (4), the piston rod (62) is arranged in the cylinder body (61), and the piston rod (62) extends vertically and can be telescopically extended relative to the cylinder body (61), the lifting rod (63) is sleeved on the upper end of the piston rod (62), and a lifting rod connecting plate (631) is arranged on the upper end of the lifting rod (63), the lifting rod connecting plate (631) is arranged transversely, and a lifting rod connecting plate through groove (6311) is formed in the lifting rod connecting plate (631), the sliding shaft (64) is slidably connected with the lifting rod connecting plate through groove (6311) and can reciprocate in the lifting rod connecting plate through groove (6311), and one end of the pneumatic swing arm (65) is hingedly connected with the sliding shaft (64), and the other end of the pneumatic swing arm (65) is provided with a pneumatic swing arm sleeve (651), and the pneumatic swing arm sleeve (651) is sleeved and fixed on the shaft body of the power input shaft (52).

8. The aerodynamic centralized air intake and exhaust system for a ship according to claim 6, wherein: The manual operating mechanism (7) comprises a steering wheel disc (71), a steering transmission rod (72) and a steering transmission box (73), the steering wheel disc (71) is arranged at one end of the steering transmission rod (72), the other end of the steering transmission rod (72) is arranged in the steering transmission box (73), the steering transmission box (73) is fixedly installed on the mounting bracket (51) of the transmission linkage mechanism (5), and one end of the power input shaft (52) is also arranged in the steering transmission box (73), and the steering transmission rod (72) and the power input shaft (52) are transmissionally connected.

9. The aerodynamic centralized air intake and exhaust system for a ship according to claim 6, wherein: Two bearing seats (121) are fixedly installed on the transmission shaft positioning plates (12) and correspond to the positions of the transmission shaft (56), the transmission shaft (56) passes through the two bearing seats (121) and is rotationally connected with the bearing seats (121), and the transmission shaft (56) and the bearing in the bearing seat (121) are connected together.

10. The aerodynamic centralized air intake and exhaust system for a ship according to claim 6, wherein: A positioning mechanism (8) is also connected to the top of the fence (2), which includes a pair of positioning swing arms (81) and a pair of cover connecting arms (82); two positioning swing arms (81) are arranged at intervals and are both L-shaped plate structures, and both have a positioning swing arm fixing part (811) and a positioning swing arm bending part (812) bent at the upper end of the positioning swing arm fixing part (811). The positioning swing arm fixing parts (811) of the two positioning swing arms (81) are respectively fixedly installed on the side panels (22) on both sides of the fence (2), and a positioning swing arm hinge sleeve (8121) is formed at the end of the positioning swing arm bending part (812) away from the positioning swing arm fixing part (811). The positioning swing arm hinge sleeve (8121) is sleeved on the shaft of the transmission shaft (56) and is hinged with the transmission shaft (56); two cover connecting arms (82) are also arranged at intervals and are L-shaped plate structures, both have a cover connecting arm hinge part (821) and a cover connecting arm fixing part (822) bent on the cover connecting arm hinge part (821), and the cover connecting arm fixing part (822) and the cover connecting arm hinge part (821) are perpendicular, and two pairs of cover connecting arm hinge plates (211) are formed on the top panel (21) of the fence (2) and at positions corresponding to the two cover connecting arms (82). One end of the cover connecting arm hinge part (821) is threaded through the two cover connecting arm hinge plates (211) and is hinged with the cover connecting arm hinge plates (211) through a hinge shaft, and the cover connecting arm fixing part (822) is fixedly installed on the top of the side surface of the ventilation cover (3) opposite to the ventilation port (11).

Images