A time-delayed liquid releasing device for preventing oil adhesion on a ship

Abstract

This invention relates to the field of cleaning device technology, and in particular to a delayed-release liquid device for preventing oil spills on ships. The device includes a thrower, a housing, a transmission mechanism, an adjusting switch, and a puncture assembly. The housing consists of an operating shell and a receiving shell connected to each other. The operating shell is connected to the launching end of the thrower, and the receiving shell stores cleaning liquid and has a puncture surface at its end. The transmission mechanism is located inside the operating shell, including an axially arranged rotating shaft, a first bevel gear fixed to the end of the rotating shaft, and a delay mechanism mounted on the rotating shaft. A partially exposed adjusting switch can drive the first bevel gear to rotate, achieving pre-adjustment of the mechanism. The puncture assembly is located inside the operating shell, with a fixed shaft. A rotating sleeve is linked to the delay mechanism and can rotate around the fixed shaft. A sliding sleeve is threaded into the rotating sleeve, and a pin that can extend into the receiving shell is fixed to the end of the sliding sleeve. This device can achieve targeted delayed liquid release, effectively preventing premature splashing and contamination of the ship by cleaning liquid.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a delayed-release liquid device for preventing oil fouling on ships. Background Technology

[0002] When ships navigate or operate in nearshore waters, ports, rivers, and areas near industrial wastewater discharges, large amounts of industrial oil slicks, waste oil from ships, and suspended grease often float on the water surface, creating large areas of oil-polluted water. During navigation, the ship's hull is in continuous contact with the oil on the water surface. The oil easily adheres to the hull's outer plating and gradually accumulates and solidifies, forming a difficult-to-remove oily sludge. Once oil adheres to the hull surface, it directly alters the smoothness of the hull's surface, increasing water friction resistance during navigation, leading to increased energy consumption and higher fuel costs. Simultaneously, the adhered oil will erode the hull's protective coating over time, damaging the anti-corrosion paint film structure and exposing the hull's metal substrate directly to the aquatic environment, accelerating hull corrosion, oxidation, and aging. This not only shortens the ship's maintenance cycle and increases maintenance costs but, in severe cases, can also affect the structural strength of the ship's equipment and reduce navigational safety. Furthermore, the oil adhering to the hull can migrate and spread with the ship's navigation, carrying oil from locally polluted areas to cleaner waters, further expanding the pollution range, disrupting the aquatic ecological balance, and causing continuous harm to aquatic life.

[0003] Currently, the treatment of oil spills on water surfaces mainly involves manual spraying, tank dumping, and direct application of cleaning agents. These methods involve directly applying oil-removing cleaning solutions to the polluted water surface, using the agents to decompose and emulsify the oil, thereby improving the water pollution situation. However, existing methods generally have significant technical flaws. During the direct application of conventional cleaning solutions, interference from ship traffic, water waves, and water flow causes the cleaning solution to easily splash and disperse. Large amounts of the solution can directly adhere to the ship's hull during its fall, not only failing to remove the oil but also exacerbating the pollution due to the chemical components of the cleaning agent adhering to the oil, causing secondary corrosion to the ship's protective coating. Furthermore, traditional application methods cannot control the timing of the cleaning solution release. The solution rapidly diffuses and dilutes after entering the water, making it difficult to form a stable oil barrier layer in front of the ship's path. This prevents pre-treatment of oil spills in the area the ship is traveling in, resulting in poor oil barrier performance, low agent utilization, and limited protective effect.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a delayed release device for preventing oil fouling on ships. Summary of the Invention

[0005] The purpose of this invention is to provide a delayed release device for preventing oil spills on ships, which can solve the problem that existing methods for treating oil spills on the water surface cannot simultaneously meet the needs of ship navigation protection and oil spill cleanup.

[0006] The delayed release device for preventing oil fouling on ships provided in this application adopts the following technical solution: A delayed-release liquid release device for preventing oil fouling on ships includes: Throwing device; The device housing includes an operating shell and a receiving shell connected together. One end of the outer wall of the operating shell is connected to the launching end of the thrower. The receiving shell is filled with cleaning fluid, and the end of the receiving shell away from the operating shell is provided with a puncture surface. A transmission mechanism is disposed within the operating housing. The transmission mechanism includes a rotating shaft, a first bevel gear, and a delay mechanism. The rotating shaft is axially arranged along the operating housing. The first bevel gear is fixed to one end of the rotating shaft, and the delay mechanism is disposed on the rotating shaft. An adjustment switch is partially exposed outside the device housing, and the adjustment switch can drive the first bevel gear to rotate. The puncture assembly includes a fixed shaft, a rotating sleeve, a sliding sleeve, and a pin. The fixed shaft is disposed inside the operating housing. The rotating sleeve is linked to the delay mechanism and can rotate axially around the fixed shaft. The sliding sleeve is sleeved on the fixed shaft and its outer wall is threadedly connected to the rotating sleeve. The pin is disposed at one end of the sliding sleeve and can penetrate the operating housing and extend into the receiving housing. The rotating adjustment switch causes the rotating sleeve to rotate with a delay, which in turn causes the sliding sleeve to move on the fixed shaft, and the tip of the ejector pin can pierce the surface to be pierced.

[0007] Optionally, the adjustment switch includes a rotating handwheel, a connecting shaft, and a second bevel gear. The rotating handwheel is disposed in the device housing. One end of the connecting shaft is connected to the rotating handwheel, and the other end extends through the outer wall of the device housing into the operating shell and is fixed at the end of the second bevel gear. The second bevel gear meshes with the first bevel gear, and rotating the rotating handwheel can drive the first bevel gear to rotate.

[0008] Optionally, one end of the operating housing is connected to the launching end of the launcher and the other end is provided with a threaded port, and the receiving housing can be screwed onto the threaded port of the operating housing.

[0009] Optionally, the operating housing is provided with a connecting handle, and a traction rope is connected to the operating handle.

[0010] Optionally, the delay mechanism includes a ratchet base, a mainspring, a transmission bridge, a fixed gear, an escape wheel, an escape fork, an upper connecting rod, a ratchet, a pawl, a pawl shaft, a limiting shaft, and a rubber band. One end of the mainspring is fixed to the rotating shaft, and the other end is fixed to the ratchet base. The fixed gear is coaxially mounted on the rotating shaft and fixed to the ratchet base. The ratchet base is connected to the inner wall of the operating housing. The transmission bridge is fixed to the end of the rotating shaft away from the first bevel gear. The upper connecting rod is linked to the transmission bridge, and the ratchet is connected to the upper connecting rod. The escape wheel is connected to the transmission bridge and its lower end can mesh with the fixed gear. The escape fork is hinged to the transmission bridge and can swing to contact the escape wheel. The pawl shaft is connected to the upper connecting rod and its end is connected to the pawl. The limiting shaft is disposed on the upper connecting rod. One end of the rubber band is sleeved on the limiting shaft and the other end is sleeved on the pawl. The pawl can mesh with the ratchet. The rotation of the first bevel gear can drive the ratchet to rotate with a delayed deceleration. The rotating sleeve is connected to the ratchet and rotates with the ratchet.

[0011] Optionally, the delay mechanism further includes a hairspring handle, a hairspring mechanism, and a hairspring element. The hairspring handle is connected to the transmission bridge, the hairspring mechanism is connected to the hairspring handle, and one end of the hairspring element is fixed to the upper connecting rod and the other end is fixed to the hairspring mechanism. When the escape fork swings, one end contacts the escape wheel and the other end contacts the hairspring handle.

[0012] The operating housing has several limiting holes at one end, the ejector pin moves within the limiting holes, and the inner wall of the limiting holes is provided with a sealing element.

[0013] Optionally, the operating housing is further provided with a support shaft and a third bevel gear. The support shaft is coaxially arranged with the rotating shaft and is connected to the inner wall of the operating housing near the launching end of the launcher. The third bevel gear is arranged on the support shaft and meshes with the first bevel gear.

[0014] Optionally, the material density of the operating shell and the receiving shell is greater than the density of water.

[0015] Optionally, the operating housing is provided with a sealing mechanism at the through-hole of the connecting shaft.

[0016] In summary, this application includes at least one of the following beneficial technical effects: The present invention discloses a delayed release device for preventing oil contamination on ships. The device housing is divided into an operating shell and a receiving shell, which realizes complete separation between the mechanical transmission area and the cleaning fluid storage area. When the delayed mechanism drives the rotating sleeve to rotate axially around the fixed shaft, the rotational motion is converted into the linear feed motion of the sliding sleeve by the threaded pair, which drives the ejector pin to move forward at a uniform speed and slowly. This realizes the operation logic of throwing, delaying in the air, and accurately puncturing and releasing the liquid after landing in the water, effectively avoiding the problems of premature leakage of cleaning fluid and splashing of medicine to contaminate the hull. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a delayed release device for preventing oil fouling on ships in this embodiment.

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a delayed release device for preventing oil fouling on ships in this embodiment.

[0020] Figure 3 This is a schematic diagram of the structure of a delayed-release liquid removal device (removal device housing) for preventing oil fouling on ships in this embodiment. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the structure of a delayed-release liquid removal device (removal device housing) for preventing oil fouling on ships in this embodiment. Figure 2 .

[0022] Figure 5 yes Figure 4 A magnified view of the node at point A in the middle.

[0023] Explanation of reference numerals in the attached figures: 1. Device housing; 11. Operating housing; 111. Connecting handle; 12. Receiving housing; 121. Puncture surface; 2. Transmission mechanism; 21. Rotating shaft; 22. First bevel gear; 23. Delay mechanism; 231. Ratchet base; 232. Mainspring; 233. Transmission bridge; 234. Fixed gear; 235. Escape wheel; 236. Escape fork; 237. Upper connecting rod; 238. Rubber band; 239. Pawl; 3. Adjusting switch; 31. Rotating handwheel; 32. Connecting shaft; 33. Second bevel gear; 4. Puncture assembly; 41. Fixed shaft; 42. Rotating sleeve; 43. Sliding sleeve; 44. Ejector pin. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0025] This application discloses a delayed release device for preventing oil spills on ships.

[0026] refer to Figures 1-5 A delayed-release liquid release device for preventing oil spills on ships includes a thrower, a device housing 1, a transmission mechanism 2, an adjusting switch 3, and a puncture assembly 4. The device housing 1 includes an operating shell 11 and a receiving shell 12 connected together. One end of the outer wall of the operating shell 11 is connected to the launching end of the thrower. The receiving shell 12 contains cleaning liquid, and the end of the receiving shell 12 away from the operating shell 11 has a puncture surface 121. The transmission mechanism 2 is disposed inside the operating shell 11 and includes a rotating shaft 21, a first bevel gear 22, and a delay mechanism 23. The rotating shaft 21 is axially arranged along the operating shell 11, the first bevel gear 22 is fixed to one end of the rotating shaft 21, and the delay mechanism 23 is disposed on the rotating shaft 21. The adjusting switch 3 is partially exposed outside the device housing 1 and can drive the first bevel gear 22 to rotate. The puncture assembly 4 includes a fixed shaft 41, a rotating sleeve 42, a sliding sleeve 43, and a pin 44. The fixed shaft 41 is disposed inside the operating housing 11. The rotating sleeve 42 is linked to the delay mechanism 23 and can rotate axially around the fixed shaft 41. The sliding sleeve 43 is sleeved on the fixed shaft 41, and its outer wall is threadedly connected to the rotating sleeve 42. The pin 44 is disposed at one end of the sliding sleeve 43 and can penetrate the operating housing 11 and extend into the receiving housing 12. Rotating the adjusting switch 3 causes the rotating sleeve 42 to rotate with a delay, which in turn causes the sliding sleeve 43 to move on the fixed shaft 41. The end of the pin 44 can puncture the surface 121 to be punctured.

[0027] This design divides the device housing 1 into a separate structure of an operating housing 11 and a receiving housing 12, achieving complete separation between the mechanical transmission area and the cleaning fluid storage area. The operating housing 11 houses all the transmission mechanisms 2, the delay mechanism 23, and the puncture drive structure. The receiving housing 12 independently and sealed to store the cleaning fluid, effectively preventing the cleaning fluid from soaking, corroding, or adhering to the precision mechanical transmission components. When the delay mechanism 23 drives the rotating sleeve 42 to rotate axially around the fixed shaft 41, the rotational motion is converted into the linear feed motion of the sliding sleeve 43 via the threaded joint, driving the ejector pin 44 to move forward at a uniform and slow speed. This structure abandons the instantaneous impact puncture method, relying on dual control of mechanical delay and threaded feed to precisely control the feed stroke and timing of the ejector pin 44. This device can stably realize the operational logic of throwing in flight, mid-air delay, and precise puncture and release of liquid after landing in water, effectively avoiding the problems of premature leakage of cleaning fluid and splashing of the cleaning fluid onto the hull.

[0028] Furthermore, the adjusting switch 3 includes a rotating handwheel 31, a connecting shaft 32, and a second bevel gear 33. The rotating handwheel 31 is disposed in the device housing 1. One end of the connecting shaft 32 is connected to the rotating handwheel 31, and the other end extends through the outer wall of the device housing 1 into the operating housing 11, where the second bevel gear 33 is fixed at its end. The second bevel gear 33 meshes with the first bevel gear 22. Rotating the rotating handwheel 31 can drive the first bevel gear 22 to rotate. When the device housing 1 is connected to the launcher, the operator turns the rotating handle to drive the ejector pin 44 to move with a delayed deceleration. The launcher is then used to launch the launcher in a designated direction. Once the ejector pin 44 pierces the surface to be pierced 121, the cleaning fluid is released. Furthermore, in an optional embodiment, the operating housing 11 is also provided with a support shaft and a third bevel gear. The support shaft is coaxially disposed with the rotating shaft 21 and is connected to the inner wall of the operating housing 11 near the launching end of the launcher. The third bevel gear is disposed on the support shaft and meshes with the first bevel gear 22. The third bevel gear can further stabilize the transmission mechanism 2 within the operating housing 11, and the rotation of the first bevel gear 22 can drive the third bevel gear to rotate on the support shaft.

[0029] In an optional embodiment, one end of the operating shell 11 is connected to the launching end of the thrower, and the other end is provided with a threaded port. The receiving shell 12 can be screwed onto the threaded port of the operating shell 11. Furthermore, the operating shell 11 is provided with a connecting handle 111, and a traction rope is connected to the operating handle. It should be noted that the length of the traction rope should be greater than the distance of the launching device shell 1. After the pin 44 punctures the puncture surface 121 and releases the cleaning fluid, the operator can pull the traction rope to retrieve the device. For easier use next time, the receiving shell 12 can be unscrewed to replace the puncture surface 121, and the cleaning fluid inside the receiving shell 12 can be refilled for future use.

[0030] In an optional embodiment, the delay mechanism 23 includes a ratchet base 231, a mainspring 232, a transmission bridge 233, a fixed gear 234, an escape wheel 235, an escape fork 236, an upper connecting rod 237, a ratchet, a pawl 239, a pawl 239 shaft, a limiting shaft, and a rubber band 238. One end of the mainspring 232 is fixed to the rotating shaft 21, and the other end is fixed to the ratchet base 231. The fixed gear 234 is coaxially disposed on the rotating shaft 21 and fixed to the ratchet base 231. The ratchet base 231 is connected to the inner wall of the operating housing 11. The transmission bridge 233 is fixed to the end of the rotating shaft 21 away from the first bevel gear 22. The upper connecting rod 237 is linked to the transmission bridge. The escapement frame 233 has a ratchet connected to the upper connecting rod 237. The escape wheel 235 is connected to the transmission bridge 233, and its lower end can mesh with the fixed gear 234. The escape fork 236 is hinged to the transmission bridge 233 and can swing to contact the escape wheel 235. The pawl 239 is shaft-connected to the upper connecting rod 237, and its end is connected to the pawl 239. A limiting shaft is set on the upper connecting rod 237. One end of a rubber band 238 is sleeved on the limiting shaft, and the other end is sleeved on the pawl 239. The pawl 239 can mesh with the ratchet. The rotation of the first bevel gear 22 can drive the ratchet to rotate with a delayed deceleration. The rotating sleeve 42 is connected to the ratchet and rotates with it. Figure 3 As shown, the delay mechanism 23 is typically the delay mechanism 23 found in traditional clocks, designed to allow the piercing assembly 4 to delay and slow down the piercing process of the piercing surface 121.

[0031] Furthermore, the delay mechanism 23 also includes a hairspring handle, a hairspring mechanism, and a hairspring element. The hairspring handle is connected to the transmission bridge 233, the hairspring mechanism is connected to the hairspring handle, and one end of the hairspring element is fixed to the upper connecting rod 237 and the other end is fixed to the hairspring mechanism. When the escape fork 236 swings, one end contacts the escape wheel 235 and the other end contacts the hairspring handle. The hairspring element increases the stability of the ratchet rotation. The hairspring element, together with the escape fork 236, forms an oscillation system, relying on its own vortex elasticity to repeatedly rebound, limiting the swing frequency of the escape fork 236 and constraining the rotation rhythm of the escape wheel 235. The hairspring element plays a role in damping speed regulation and delaying stabilization.

[0032] In an optional embodiment, a plurality of limiting holes are provided on one end of the operating housing 11, and the ejector pin 44 moves within the limiting holes. A sealing element is provided on the inner wall of the limiting holes. The sealing element prevents the cleaning fluid inside the receiving housing 12 from entering the operating housing 11, thereby preventing contamination or corrosion of the internal structure of the operating housing 11 by the cleaning fluid. A sealing mechanism is provided at the penetration point of the connecting shaft 32 in the operating housing 11. Since the handwheel submerges below the water surface due to gravity when the device is launched onto the water surface, the sealing mechanism prevents water from entering the operating housing 11. The sealing mechanism can be a sealing ring; it should be noted that the material density of the operating housing 11 and the receiving housing 12 is greater than the density of water. The device housing 1 allows the entire device to float on the water surface, enabling the cleaning fluid to clean oil stains on the water surface.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A delayed-release device for preventing oil fouling on ships, characterized in that, include: Throwing device; The device housing (1) includes an operating housing (11) and a receiving housing (12) connected together. One end of the outer wall of the operating housing (11) is connected to the launching end of the thrower. The receiving housing (12) is filled with cleaning fluid, and the end of the receiving housing (12) away from the operating housing (11) is provided with a puncture surface (121). A transmission mechanism (2) is provided inside the operating housing (11). The transmission mechanism (2) includes a rotating shaft (21), a first bevel gear (22), and a delay mechanism (23). The rotating shaft (21) is axially arranged along the operating housing (11). The first bevel gear (22) is fixed at one end of the rotating shaft (21). The delay mechanism (23) is provided on the rotating shaft (21). The regulating switch (3) is partially exposed outside the device housing (1), and the regulating switch (3) can drive the first bevel gear (22) to rotate; The puncture assembly (4) includes a fixed shaft (41), a rotating sleeve (42), a sliding sleeve (43), and a pin (44). The fixed shaft (41) is disposed inside the operating housing (11). The rotating sleeve (42) is linked to the delay mechanism (23) and can rotate axially around the fixed shaft (41). The sliding sleeve (43) is sleeved on the fixed shaft (41), and its outer wall is threadedly connected inside the rotating sleeve (42). The pin (44) is disposed at one end of the sliding sleeve (43). The pin (44) can penetrate the operating housing (11) and extend into the receiving housing (12). Among them, rotating the adjustment switch (3) causes the rotating sleeve (42) to rotate with a delay, thereby causing the sliding sleeve (43) to move on the fixed shaft (41), and the end of the pin (44) can pierce the surface to be pierced (121).

2. The delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The adjustment switch (3) includes a rotating handwheel (31), a connecting shaft (32), and a second bevel gear (33). The rotating handwheel (31) is disposed on the device housing (1). One end of the connecting shaft (32) is connected to the rotating handwheel (31), and the other end extends through the outer wall of the device housing (1) into the operating shell (11) and is fixed at the end with the second bevel gear (33). The second bevel gear (33) meshes with the first bevel gear (22). Rotating the rotating handwheel (31) can drive the first bevel gear (22) to rotate.

3. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The operating shell (11) is connected to the launching end of the thrower at one end and has a threaded port at the other end. The receiving shell (12) can be screwed onto the threaded port of the operating shell (11).

4. A delayed-release device for preventing oil fouling on ships according to claim 3, characterized in that, The operating housing (11) is provided with a connecting handle (111), and a traction rope is connected to the operating handle.

5. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The delay mechanism (23) includes a ratchet base (231), a mainspring (232), a transmission bridge (233), a fixed gear (234), an escape wheel (235), an escape fork (236), an upper connecting rod (237), a ratchet, a pawl (239), a pawl (239) shaft, a limiting shaft, and a rubber band (238). One end of the mainspring (232) is fixed to the rotating shaft (21), and the other end is fixed to the ratchet base (231). The fixed gear (234) is coaxially arranged on the rotating shaft (21) and fixed to the ratchet base (231). The ratchet base (231) is connected to the inner wall of the operating housing (11). The transmission bridge (233) is fixed to the end of the rotating shaft (21) away from the first bevel gear (22). The upper connecting rod (237) is linked to the transmission bridge (233), the ratchet is connected to the upper connecting rod (237), the escape wheel (235) is connected to the transmission bridge (233) and the lower end of the escape wheel (235) can mesh with the fixed gear (234), the escape fork (236) is hinged to the transmission bridge (233) and can swing to contact the escape wheel (235), the pawl (239) is axially connected to the upper connecting rod (237) and the end is connected to the pawl (239), the limiting shaft is set on the upper connecting rod (237), one end of the rubber band (238) is sleeved on the limiting shaft and the other end is sleeved on the pawl (239), and the pawl (239) can mesh with the ratchet; The first bevel gear (22) can drive the ratchet to rotate with a delayed deceleration, and the rotating sleeve (42) is connected to the ratchet and rotates with the ratchet.

6. A delayed-release device for preventing oil fouling on ships according to claim 5, characterized in that, The delay mechanism (23) further includes a hairspring handle, a hairspring frame and a hairspring component. The hairspring handle is connected to the transmission bridge (233), the hairspring frame is connected to the hairspring handle, and one end of the hairspring component is fixed to the upper connecting rod (237) and the other end is fixed to the hairspring frame. When the escape fork (236) swings, one end contacts the escape wheel (235) and the other end contacts the hairspring handle.

7. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The operating shell (11) has several limiting holes on one end, the ejector pin (44) moves within the limiting holes, and the inner wall of the limiting holes is provided with a sealing element.

8. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The operating housing (11) is also provided with a support shaft and a third bevel gear. The support shaft is coaxially arranged with the rotating shaft (21). The support shaft is connected to the inner wall of the operating housing (11) near the launching end of the thrower. The third bevel gear is arranged on the support shaft and meshes with the first bevel gear (22).

9. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The material density of the operating shell (11) and the receiving shell (12) is greater than that of water.

10. A delayed-release device for preventing oil fouling on ships according to claim 1, characterized in that, The operating housing (11) is provided with a sealing mechanism at the through-hole of the connecting shaft (32).

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