A windproof structure of a marine searchlight

Abstract

The present application relates to the technical field of ship lighting, in particular to a marine searchlight windproof structure. The problem of reducing the device structure, reducing the wind resistance, and utilizing the ship compressed gas resource to cool the searchlight is solved. It comprises a lamp cylinder and a front cover fixed to the front end of the lamp cylinder, the lamp cylinder is connected with an inner cylinder assembly capable of opening and closing the rear end, the inner cylinder assembly is connected with a ship compressed gas system, a windproof assembly for dispersing and decompressing the gas is arranged in the inner cylinder assembly, a lamp holder is connected with the inside of the lamp cylinder, and a lamp is connected in the middle of the lamp holder. It is mainly used for ship searchlight windproof cooling.

Description

Technical Field

[0001] This invention relates to the field of marine lighting technology, and in particular to a windproof structure for a marine searchlight. Background Technology

[0002] Marine searchlights, as critical lighting equipment for nighttime navigation, search and rescue, and navigational marking, typically employ high-power light sources such as xenon lamps and LED arrays. Their luminous efficiency is only about 30%-40%, with most electrical energy converted into heat, leading to a rapid increase in internal temperature. Traditional cooling methods rely on three main approaches: natural convection cooling, which involves heat exchange between the metal casing and the air, but this is hampered by the compact space and limited airflow in ship cabins, and the strong winds at sea can create stagnant zones on the casing, resulting in low cooling efficiency; forced air cooling, which requires additional fans and heat sinks, necessitating the design of louvered or labyrinthine windproof structures to resist strong winds and salt spray, but these structures significantly increase wind resistance and reduce cooling efficiency while blocking external airflow. Furthermore, moving parts and windproof baffles are at high risk of corrosion and jamming in salt spray environments, requiring frequent maintenance; and circulating liquid cooling, which requires independent pump sets, coolant circuits, and expansion tanks, resulting in a complex, heavy, and costly system with the potential for coolant leakage leading to electrical insulation failure.

[0003] All of the above solutions require additional dedicated cooling devices and windproof structures for the searchlights. The two are poorly coordinated, and their heat dissipation efficiency drops sharply or even fails in strong winds. This not only occupies limited ship space but also increases energy consumption and maintenance burden. Meanwhile, modern ships are generally equipped with compressed air systems for main engine startup, miscellaneous air, horns, and control systems. These systems typically operate at pressures of 0.7-3.0 MPa, with exhaust temperatures of approximately 50-80°C, and operate around the clock. This air source is characterized by stable pressure, controllable flow, and dryness; however, aside from driving equipment, a large amount of this gas is directly discharged or depressurized for use, leaving its cooling potential untapped.

[0004] In summary, a windproof structure for marine searchlights is proposed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention aims to propose a windproof structure for marine searchlights. The technical problem to be solved is to reduce the structure of the device, reduce wind resistance, and utilize the ship's compressed gas resources to cool the searchlight.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a windproof structure for a marine searchlight, comprising a lamp tube and a front cover fixed at its front end, wherein the lamp tube is connected to an inner cylinder assembly capable of opening and closing its rear end, the inner cylinder assembly is connected to the ship's compressed gas system, and the inner cylinder assembly is provided with a windproof component for dispersing and reducing gas pressure, the lamp holder is connected to the inside of the lamp tube, and a lamp is connected to the middle of the lamp holder.

[0007] Furthermore, the lamp tube includes a slide rail, a connecting block, and a rear sealing groove. The slide rail is disposed inside the lamp tube and is slidably connected to the inner cylinder assembly. The connecting block is connected to the inner cylinder assembly via a single-axis cylinder. A sealing ring is provided in the rear sealing groove to keep the internal space of the lamp tube sealed when the inner cylinder assembly is closed with the lamp tube.

[0008] Furthermore, the inner cylinder assembly includes a cylinder body, an end cap, a side slide rail, and an air inlet. The cylinder body is located inside the cylinder body, the end cap is located at one end of the cylinder body, and the end cap can be opened and closed with the rear sealing groove. The side slide rail is located on the cylinder body and is slidably connected to the slide rail. The air inlet is located on the end cap.

[0009] Furthermore, a sealing groove is provided on the side of the end cap near the rear sealing groove, and a sealing ring is provided in the groove.

[0010] Furthermore, the single-shaft cylinder is provided with two air ports, which are connected to the air inlet and exhaust ports provided on the end cover.

[0011] Furthermore, the windproof assembly includes a wind duct and an inner cup. The wind duct is fixed to the end cap, and the inner cup is fixed to the middle of the wind duct, with the opening of the inner cup facing the air inlet.

[0012] Furthermore, the inner bowl includes a flared section and a tightening section. The flared section is fixed to the back plate, with its opening away from the back plate; the tightening section is fixed at the opening of the flared section.

[0013] Furthermore, the windbreak assembly also includes a drain pipe connected to the lowest point of the inner bowl.

[0014] Furthermore, the upper part of the drain pipe is provided with a float and a positioning seat that restricts the position of the float.

[0015] The advantages of this invention are: By configuring the lamp housing and cylinder, the internal seal of the device is maintained when the lights are off, and the internal cooling gas is allowed to flow outwards when the lights are on. Using marine compressed air avoids corrosion from high moisture and salt content in the air, reducing the complexity of the internal structure. A windbreak assembly collects and discharges any residual water and oil in the compressed air, and depressurizes and diverts the incoming air. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the windproof structure for a marine searchlight according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a windproof structure for a marine searchlight according to the present invention; Figure 3 This is a first-view sectional view of a windproof structure for a marine searchlight according to the present invention. Figure 4 This is a second-view sectional view of a windproof structure for a marine searchlight according to the present invention. Figure 5 This is a schematic diagram of the structure of the lamp tube described in this invention; Figure 6 This is a schematic diagram of the inner cylinder assembly described in this invention; Figure 7 This is a structural schematic diagram of the inner cylinder assembly described in this invention from another perspective; Figure 8 This is a schematic diagram of the windshield assembly described in this invention; Figure 9 This is a cross-sectional view of the windshield assembly described in this invention; Figure 10 As described in this invention Figure 9 Enlarged view of section A in the middle.

[0017] Explanation of markings in the diagram: Lamp tube 1; slide rail 1-1, connecting block 1-2 and rear sealing groove 1-3; front cover 1-4; front cover 2; inner cylinder assembly 3; cylinder body 3-1, end cover 3-2, side slide rail 3-3 and air inlet 3-4; drain outlet 3-5; air inlet and outlet 3-6; lamp holder 4; lamp 5; single-axis cylinder 6; rod 6-1; cylinder 6-2; air pipe 6-3; wind baffle assembly 7; air duct 7-1 and inner cup 7-2; flared section 7-2-1 and tightening section 7-2-2; back plate 7-2-3; air outlet 7-2-4; drain pipe 7-3; float 7-4; positioning seat 7-5; air inlet 7-6. Detailed Implementation

[0018] Referring to the accompanying drawings, this embodiment provides a windproof structure for a marine searchlight, including a lamp tube 1 and a front cover 2 fixed to its front end. The lamp tube 1 is connected to an inner cylinder assembly 3 capable of opening and closing its rear end. The inner cylinder assembly 3 is connected to the ship's compressed gas system. Inside the inner cylinder assembly 3 is a windbreak assembly 7 for dispersing and reducing gas pressure. A lamp holder 4 is connected to the interior of the lamp tube 1, and a lamp is connected to the middle of the lamp holder 4. The ship's compressed gas system is connected to the inner cylinder assembly 3 via a pressure reducing valve. First, a single-axis cylinder 6 is controlled to extend, causing the inner cylinder assembly 3 to move and open the channel between the inner cylinder assembly 3 and the lamp tube 1, connecting the interior of the lamp tube 1 to the outside. When the lamp is lit, heat is generated and discharged outwards, while simultaneously gas is supplied to the inner cylinder assembly 3. The gas first passes through the windbreak assembly 7 for pressure reduction and removal of moisture and oil, then flows into the interior of the inner cylinder assembly 3 to cool the lamp. The heat-exchanged gas first passes through the glass on the front cover 2, which helps remove fogging from the glass, and then flows out of the lamp tube 1 through the gap between the inner cylinder assembly 3 and the lamp tube 1. After use, the inner cylinder assembly 3 can be closed to the lamp tube 1, and an airflow of appropriate pressure can be injected inside to prevent external air and water from entering.

[0019] In this embodiment, the lamp tube 1 includes a slide rail 1-1, a connecting block 1-2, and a rear sealing groove 1-3. The slide rail 1-1 is disposed inside the lamp tube 1 and is slidably connected to the inner cylinder assembly 3. The connecting block 1-2 is connected to the inner cylinder assembly 3 via a single-axis cylinder 6. A sealing ring is provided in the rear sealing groove 1-3 to keep the internal space of the lamp tube 1 sealed when the inner cylinder assembly 3 and the lamp tube 1 are closed. The slide rail 1-1 defines the direction and position of movement of the inner cylinder assembly 3, which always moves along the axis. The connecting block 1-2 is connected to the single-axis cylinder 6, which pushes the inner cylinder assembly 3 to move, realizing the relative movement between the inner cylinder assembly 3 and the lamp tube 1, thereby opening the lamp tube 1 and connecting its internal space to the outside.

[0020] In this embodiment, the inner cylinder assembly 3 includes a cylinder body 3-1, an end cap 3-2, a side slide rail 3-3, and an air inlet 3-4. The cylinder body 3-1 is located inside the cylinder body 1, and the end cap 3-2 is located at one end of the cylinder body 3-1. The end cap 3-2 can be opened and closed with the rear sealing groove 1-3. The side slide rail 3-3 is located on the cylinder body 3-1 and is slidably connected to the slide rail 1-1. The air inlet 3-4 is located on the end cap 3-2. The cylinder body 3-1 divides the internal space of the inner cylinder 1 into two parts and extends the airflow channel. The end cap 3-2 is used to open and close with the lamp tube 1; when open, it is used for exhaust, and when closed, it is used for sealing. The side slide rail 3-3 is connected to the slide rail 1-1, allowing the cylinder body 3-1 to move within the position defined by the slide rail 1-1. The air inlet 3-4 is connected to the compressed air system on the ship, supplying gas for cooling.

[0021] In this embodiment, the end cap 3-2 is provided with a sealing groove on the side near the rear sealing groove 1-3, and a sealing ring is provided in the groove. This is used to increase the sealing performance, maintain high pressure inside, and prevent external gas or moisture from entering the interior.

[0022] In this embodiment, the single-axis cylinder 6 has two air ports, which are connected to the inlet and outlet ports 3-6 provided on the end cover 3-2. The inlet and outlet ports are connected to the air pipe 6-3 of the single-axis cylinder 6 and are used to control the direction of the moving rod 6-1. When air enters from one side, the gas enters the cylinder 6-2 and pushes the piston to move the rod 6-1.

[0023] In this embodiment, the windbreak assembly 7 includes a wind duct 7-1 and an inner bowl 7-2. The wind duct 7-1 is fixed to the end cap 3-2, and the inner bowl 7-2 is fixed to the middle of the wind duct 7-1, with its opening facing the air inlet 3-4. The inner bowl 7-2 is used to block the gas entering through the air inlet 3-4, thereby reducing the wind speed and allowing water and oil in the compressed gas to be discharged. An air inlet 7-6 is provided between the wind duct 7-1 and the inner bowl 7-2 to allow gas to enter the interior of the cylinder 3-1.

[0024] In this embodiment, the inner bowl 7-2 includes a flared section 7-2-1 and a tightening section 7-2-2. The flared section 7-2-1 is fixed to the back plate 7-2-3, with its opening away from the back plate 7-2-3; the tightening section 7-2-2 is fixed to the opening of the flared section 7-2-1. Gas is first blown onto the back plate 7-2-3, then diffuses outwards. It first passes through the flared section 7-2-1 to further slow down, and then passes through the tightening section 7-2-2 for partial obstruction, causing water vapor and other gases to flow downwards and be discharged through the drain pipe 7-3.

[0025] In this embodiment, the windbreak assembly 7 further includes a drain pipe 7-3, which is connected to the lowest point of the inner bowl 7-2.

[0026] In this embodiment, the upper part of the drain pipe 7-3 is provided with a float 7-4 and a positioning seat 7-5 to limit the position of the float. The float 7-4 remains sealed when the device is working normally. When the buoyancy provided by the accumulated water and oil is large enough, the float 7-4 is lifted to discharge the water and oil, and then falls back down. Since the internal air pressure is greater than the external air pressure, the float 7-4 will press tightly against the upper part of the drain pipe 7-3 to form a seal.

[0027] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A windproof structure for a marine searchlight, comprising a lamp tube (1) and a front cover (2) fixed to its front end, characterized in that, The lamp tube (1) is connected to an inner cylinder assembly (3) that can open and close its rear end. The inner cylinder assembly (3) is connected to the ship's compressed gas system. The inner cylinder assembly (3) is provided with a windproof assembly (7) that disperses and reduces the pressure of the gas. The lamp holder (4) is connected to the inside of the lamp tube (1). A lamp is connected to the middle of the lamp holder (4). The lamp tube (1) includes a slide rail (1-1), a connecting block (1-2), and a rear sealing groove (1-3). The slide rail (1-1) is located inside the lamp tube (1) and is slidably connected to the inner cylinder assembly (3). The connecting block (1-2) is connected to the inner cylinder assembly (3) through a single-axis cylinder (6). A sealing ring is provided in the rear sealing groove (1-3). When the inner cylinder assembly (3) is closed with the lamp tube (1), the internal space of the lamp tube (1) is sealed. The inner cylinder assembly (3) includes a cylinder body (3-1), an end cap (3-2), a side slide rail (3-3), and an air inlet (3-4). The cylinder body (3-1) is located in the lamp tube (1). The end cap (3-2) is located at one end of the cylinder body (3-1). The end cap (3-2) can be opened and closed with the rear sealing groove (1-3). The side slide rail (3-3) is located on the cylinder body (3-1) and is slidably connected to the slide rail (1-1). The air inlet (3-4) is located on the end cap (3-2).

2. The windproof structure for a marine searchlight according to claim 1, characterized in that: The end cap (3-2) has a sealing groove on the side near the rear sealing groove (1-3), and a sealing ring is provided in the groove.

3. The windproof structure for a marine searchlight according to claim 2, characterized in that: The single-shaft cylinder (6) is provided with two air ports, which are connected to the air inlet and outlet ports (3-6) provided on the end cover (3-2).

4. The windproof structure for a marine searchlight according to claim 3, characterized in that: The windproof assembly (7) includes a wind duct (7-1) and an inner bowl (7-2). The wind duct (7-1) is fixed on the end cap (3-2), and the inner bowl (7-2) is fixed in the middle of the wind duct (7-1). The opening of the inner bowl (7-2) faces the air inlet (3-4).

5. The windproof structure for a marine searchlight according to claim 4, characterized in that: The inner bowl (7-2) includes a flared section (7-2-1) and a tightening section (7-2-2). The flared section (7-2-1) is fixed on the back plate (7-2-3) with its opening away from the back plate (7-2-3). The tightening section (7-2-2) is fixed at the opening of the flared section (7-2-1).

6. The windproof structure for a marine searchlight according to claim 5, characterized in that: The windproof assembly (7) also includes a drain pipe (7-3) connected to the lowest point of the inner bowl (7-2).

7. The windproof structure for a marine searchlight according to claim 6, characterized in that: The upper part of the drain pipe (7-3) is provided with a float (7-4) and a positioning seat (7-5) to limit the position of the float.

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