Passive anti-ship roll pillow

Abstract

The utility model discloses a passive type anti-ship roll pillow based on pneumatic linkage, which comprises a pillow body and a flexible filling supporting layer, and a closed pneumatic linkage unit is arranged in the pillow body. The unit comprises a central main air bag, left and right confrontation air bags and an air path connecting assembly connecting the air bags. The air path assembly comprises a supporting air path and a reset air path, and one-way valves are arranged on the air path assembly. When the ship is tilted, the head pressure drives the gas to fill into the opposite confrontation air bag through the supporting air path to provide support. When the ship is righted, the central main air bag absorbs the gas back through the reset air path under the action of the elastic reset member, so that the confrontation air bag is reset. The utility model is completely based on the passive pneumatic principle and does not need power, realizes the self-adaptive and reliable anti-roll function and effectively improves the sleep quality of the seafarers.

Description

Technical Field

[0001] This utility model relates to the fields of marine equipment and ergonomics, and in particular to a passive anti-roll pillow that is suitable for swaying environments such as ships and can automatically provide dynamic lateral support for the head of the sleeper. Background Technology

[0002] For seafarers and passengers at sea, the rolling motion of a ship caused by wind and waves is a major factor affecting sleep quality and physical health. This periodic tilting causes continuous relative rolling and displacement between the head and pillow during sleep, which can easily lead to waking up, stiff neck, cervical fatigue, and even exacerbate seasickness symptoms.

[0003] Existing ordinary pillows are statically designed and cannot cope with dynamic tilting environments, resulting in a lack of stable head support. While some smart adjustable pillows using sensors and electronic control units are powerful in ideal environments, they suffer from complex structures, high costs, reliance on electricity, and poor reliability, safety, and maintainability in the harsh environments unique to ships (such as high humidity, salt spray corrosion, and continuous vibration). Especially in scenarios such as ocean-going cargo ships, military vessels, and small fishing boats, the requirements for maintenance-free operation, environmental tolerance, and cost control are extremely stringent.

[0004] Therefore, the market urgently needs a passive anti-roll device that is simple in structure, requires no external energy, can automatically respond to ship roll, and has high environmental tolerance. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a passive anti-ship roll pillow based on pneumatic linkage. It is not only simple in structure and requires no electricity, but also solves the problem of balancing the directionality of movement, trigger sensitivity and comfort in complex vibration environments through a precisely designed passive pneumatic system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A passive anti-ship roll pillow based on pneumatic linkage, comprising a pillow body and a flexible filling support layer filled inside it. The pillow body also includes a closed pneumatic linkage unit, which comprises a central main airbag, a left counteracting airbag, and a right counteracting airbag. The central main airbag is horizontally laid on the upper part or inside the flexible filling support layer, and its wall is embedded with or combined with an elastic reset element, so that the airbag can actively rebound and reset after being deformed by pressure. The left and right counteracting airbags are located on the left and right sides of the central main airbag, respectively. The pneumatic linkage unit also includes an air path connection assembly, which includes: the lower right part of the central main airbag is connected to the bottom of the left counteracting airbag through a first support air path, and the first support air path is provided with a first support one-way valve that only allows gas to flow from the central main airbag to the left counteracting airbag; the lower right part of the central main airbag is connected to the bottom of the left counteracting airbag through a first reset air path, and the first reset air path is provided with a first reset one-way valve that only allows gas to flow from the left counteracting airbag back to the central main airbag. The lower left part of the central main airbag is connected to the bottom of the right counteracting airbag through a second supporting air passage. The second supporting air passage is equipped with a second supporting one-way valve that only allows gas to flow from the central main airbag to the right counteracting airbag. The lower left part of the central main airbag is connected to the bottom of the right counteracting airbag through a second reset air passage. The second reset air passage is equipped with a second reset one-way valve that only allows gas to flow from the right counteracting airbag back to the central main airbag.

[0007] Compared with the prior art, the present invention has the following beneficial effects: 1. Fully passive and highly reliable: It works entirely based on mechanical and pneumatic principles, requiring no electricity. This fundamentally eliminates the risk of short circuits and corrosion in the harsh marine environment. It is impact-resistant, maintenance-free, and has a long service life.

[0008] 2. Dynamic Support and Sustained Operation: Through a cross-flow air path and one-way valve assembly design, it can automatically and instantly provide contralateral support to the bow during ship rolling. The gas circulates within a closed system with a constant total volume, capable of withstanding an unlimited number of continuous rolls.

[0009] 3. Compact structure and high comfort: It mainly uses mature flexible materials and pneumatic components, with high integration, no noise during operation, and gentle support that does not affect sleep.

[0010] 4. Quick and reliable reset: The unique elastic reset component design ensures that the system can actively and quickly reset after the ship returns to normal, preparing for continuous rolling. Attached Figure Description

[0011] Figure 1 is a longitudinal cross-sectional view of the overall structure of this utility model.

[0012] Figure 2 is a top view schematic diagram of the pneumatic linkage unit of this utility model.

[0013] Figure 3 is a longitudinal cross-sectional view of the central main airbag, showing the distribution of the elastic reset components.

[0014] The labels in the diagram are as follows: 1-Pillow body; 2-Central main airbag; 3-Left counteracting airbag; 4-Right counteracting airbag; 5-First support check valve; 6-First reset check valve; 7-Second support check valve; 8-Second reset check valve; 9-Elastic reset element. Detailed Implementation

[0015] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] As shown in Figures 1 to 3, this utility model provides a passive anti-ship roll pillow based on pneumatic linkage. The pillow body (1) is filled with memory foam, latex particles or down as a flexible filling support layer. A closed pneumatic linkage unit made of thermoplastic polyurethane (TPU) through an integral welding process is embedded in the support layer and located on top of it.

[0017] The pneumatic linkage unit includes a central main airbag (2), a left counteracting airbag (3), and a right counteracting airbag (4). The central main airbag (2) has two or more annular TPU elastic ribs evenly distributed along its circumference as elastic reset elements (9) in its inner wall.

[0018] The central main airbag (2) is connected to the counter-airbags on both sides through four independent air passages to form a cross-circulation air passage system: the lower right side of the central main airbag (2) is connected to the bottom of the left counter-airbag (3) through the first support air passage, and the first support one-way valve (5) is provided on the air passage.

[0019] The lower right side of the central main airbag (2) is connected to the bottom of the left counter-airbag (3) through the first reset air passage, and the first reset check valve (6) is provided on the air passage.

[0020] The lower left side of the central main airbag (2) is connected to the bottom of the right counter-airbag (4) through the second support air passage, which is equipped with a second support check valve (7).

[0021] The lower left side of the central main airbag (2) is connected to the bottom of the right counter-airbag (4) through the second reset air passage, and the air passage is equipped with a second reset check valve (8).

[0022] The volume of the central main airbag (2) is designed to be 1.8 times the maximum volume of the left counter-airbag (3). The bodies of the left counter-airbag (3) and the right counter-airbag (4) are made of TPU with a Shore hardness of 93A, while the body of the central main airbag (2) is made of TPU with a Shore hardness of 88A, to balance support strength and rebound comfort. The pillow body (1) is detachably connected to the core via a zipper for easy maintenance and cleaning.

[0023] Working principle: In a stationary state: the central main airbag (2) remains naturally inflated, maintaining the initial air pressure inside. The left and right counter-airbags (3) and (4) are in a contracted state without inflation. All one-way valves are closed.

[0024] Ship tilts to starboard (support phase): The user's head presses against the right side of the pillow, compressing the right side of the central main airbag (2). The air pressure on the right side increases, driving the gas to open the first support check valve (5) and fill the left counterbalance airbag (3) through the first support air passage, causing it to inflate and provide stable support from the left side of the user's head.

[0025] Ship Righting (Reset Phase): Ship righting reduces the pressure on the right side of the head against the pillow. At this time, the compressed central main airbag (2) attempts to rebound under the restoring force of the elastic reset element (9); simultaneously, the left counter-airbag (3), due to its higher internal air pressure than the central main airbag, also exerts its contractile force on the system. Under the combined action of these two forces, the central main airbag (2) tends to contract as a whole, creating a negative pressure inside. This negative pressure acts on the first reset air passage, opening the first reset check valve (6), drawing the gas in the left counter-airbag (3) back into the central main airbag (2), causing the left counter-airbag (3) to contract and reset.

[0026] To port: The working principle is the same, but the direction is opposite. The second support check valve (7) and the second support air passage inflate and support the starboard counterbalance airbag (4); to right the ship, the second reset check valve (8) and the second reset air passage reset the ship. (Instruction manual 4 100002 2023.03) This invention combines closed-loop pure pneumatic linkage with elastic reset to achieve automatic, passive, silent, comfortable, and long-term stable adaptive adjustment to ship roll, effectively improving the sleep quality of users in swaying environments.

Claims

1. A passive anti-ship roll pillow based on pneumatic linkage, comprising a pillow body (1) and a flexible filling support layer filled therein, characterized in that: The pillow body (1) is provided with a closed pneumatic linkage unit, which includes: a central main airbag (2), which is horizontally laid on the upper part or inside the flexible filling support layer, and the wall of the central main airbag (2) is reinforced with an elastic reset member (9); a left counteracting airbag (3) and a right counteracting airbag (4), which are located on the left and right sides of the central main airbag (2) respectively; and an air passage connection assembly, including: a first support air passage connecting the lower right side of the central main airbag (2) and the bottom of the left counteracting airbag (3), which is provided with a first support one-way valve (5) that only allows gas to flow from the central main airbag (2) to the left counteracting airbag (3); and a first reset air passage connecting the lower right side of the central main airbag (2) and the bottom of the left counteracting airbag (3), which is provided with a first reset one-way valve (6) that only allows gas to flow from the left counteracting airbag (3) back to the central main airbag (2). A second support air passage connecting the lower left side of the central main airbag (2) and the bottom of the right counter-airbag (4), wherein the second support air passage is provided with a second support check valve (7) that only allows gas to flow from the central main airbag (2) to the right counter-airbag (4); A second reset air passage connecting the lower left side of the central main airbag (2) and the bottom of the right counter-airbag (4), wherein the second reset air passage is provided with a second reset check valve (8) that only allows gas to flow from the right counter-airbag (4) back to the central main airbag (2).

2. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: The elastic resetting element is an elastic rib, spring or elastic fiber mesh that is distributed circumferentially around the central main airbag (2).

3. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: The pneumatic linkage unit is formed from thermoplastic polyurethane, silicone, or flexible PVC materials through an integral welding or blow molding process.

4. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: The pillow body (1) and the pneumatic linkage unit are detachably connected.

5. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: The bodies of the left counter-airbag (3) and the right counter-airbag (4) are made of a flexible material with a Shore hardness of 90A to 95A, and the body of the central main airbag (2) is made of a flexible material with a Shore hardness of 85A to 90A.

6. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: The volume of the central main airbag (2) is 1.5 to 2 times the volume of each of the left counter-airbag (3) and the right counter-airbag (4).

7. A passive anti-ship roll pillow based on pneumatic linkage according to claim 1, characterized in that: In the initial state, the central main airbag (2) is in a naturally relaxed state, and the left and right counter-airbags (3) and (4) are in a contracted state without inflation.

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