Underwater breathing apparatus

Abstract

The application discloses an underwater breathing device, which comprises a main body, a liquid channel penetrating through the main body is arranged in the main body, a plurality of groups of first dissolved oxygen extraction membranes are arranged in the liquid channel and used for extracting dissolved oxygen in water, a first gas channel is further arranged on the liquid channel, the first dissolved oxygen extraction membranes are communicated with the first gas channel, an air outlet pipe is arranged on the first gas channel, one end of the air outlet pipe is communicated with the first gas channel, and the other end of the air outlet pipe penetrates through the surface of the main body. The application overcomes the shortcomings of traditional diving devices, such as being heavy, poor sustainability and limited activity range, and realizes the two-in-one fusion of the dissolved oxygen extraction membrane and the semi-submersible slide, so that the underwater breathing device is free from the restraint of compressed air bottles, and the flexibility, duration and safety of underwater diving are improved.

Description

Technical Field

[0001] This invention relates to the field of underwater breathing equipment, and more particularly to an underwater breathing device. Background Technology

[0002] Existing diving equipment for soldiers or civilians generally uses compressed air cylinders or closed-circuit respirators (CCR) to supply the oxygen needed for underwater activities. These devices are bulky, have limited capacity, and require frequent replacement. As a result, the range and time of underwater activities are limited, as are the movement abilities. The presence of residual oxygen anxiety also increases the body's energy consumption and distracts attention during underwater activities. Summary of the Invention

[0003] In view of the above-mentioned defects in the existing technology, the purpose of the present invention is to provide an underwater breathing device that can free underwater breathing from the constraints of compressed air cylinders, thereby improving the flexibility, duration and safety of underwater diving.

[0004] The present invention provides an underwater breathing device, comprising a main body, wherein a liquid channel is provided through the main body; multiple sets of first dissolved oxygen extraction membranes are provided in the liquid channel for extracting dissolved oxygen from the water; a first gas channel is also provided on the liquid channel, wherein the first dissolved oxygen extraction membranes are connected to the first gas channel; an outlet pipe is provided on the first gas channel, wherein one end of the outlet pipe is connected to the first gas channel and the other end extends out of the surface of the main body.

[0005] Furthermore, the first dissolved oxygen extraction membrane of the present invention comprises two parallel membrane layers, with a screen disposed between the two membrane layers. Furthermore, the first dissolved oxygen extraction membrane of the present invention is connected to the inner wall of the liquid channel, and a gas extraction sealing component is provided at the connection.

[0006] Furthermore, the gas extraction sealing assembly of the present invention includes a flow channel connector, which is directly or indirectly installed on the inner wall of the liquid channel. The first dissolved oxygen extraction membrane is fixed to the flow channel connector and communicates with the first gas channel through the flow channel connector.

[0007] Furthermore, a second dissolved oxygen extraction membrane is provided on a portion of the surface of the main body of the present invention, and a second gas channel is also provided on the surface of the main body. The second dissolved oxygen extraction membrane is connected to the second gas channel, and the second gas channel is connected to the gas outlet pipe.

[0008] Furthermore, the second dissolved oxygen extraction membrane of the present invention includes a membrane sheet, and a screen is disposed between the membrane sheet and the surface of the main body.

[0009] Furthermore, the membrane material of the present invention is PTFE.

[0010] Furthermore, the surface of the membrane described in this invention is coated with an antibacterial coating.

[0011] Furthermore, the liquid channel of the present invention is provided with a filter screen at the channel opening.

[0012] Furthermore, the present invention also includes a thruster, a battery, and a control panel. The thruster is located at one end of the liquid channel, the battery is located inside the main body, and the control panel is located on the surface of the main body. The control panel is used to control the thruster, and the battery is used to power the control panel and the thruster.

[0013] Furthermore, the main body of the present invention has a flat, streamlined structure.

[0014] Furthermore, the main body surface of the present invention is provided with a gripping portion.

[0015] The technical solution provided by this invention has the following advantages compared with the prior art: (1) Based on the response to solve the pain points of existing diving, this invention starts by solving the problems of bulky breathing devices, short duration and limited range of motion. It applies a two-in-one fusion method of dissolved oxygen extraction membrane and semi-submersible skid to achieve underwater breathing free from the constraints of compressed air cylinders, thereby improving the flexibility, duration and safety of underwater diving. (2) This invention cleverly utilizes the pressure naturally formed underwater, such as the pressure of 300 kPa at a depth of 30 meters. This pressure helps the dissolved oxygen extraction membrane extract dissolved oxygen in the water without the need for power. This helps to work with low energy consumption and increase the duration of underwater activities. It is very beneficial to eliminate the anxiety of residual oxygen when a soldier or individual is underwater. It helps to reduce energy consumption during human activities, concentrate attention, and improve underwater flexibility and responsiveness. (3) This invention avoids the carbon footprint of traditional compressed air production and storage and transportation, and directly utilizes dissolved oxygen from seawater, which is in line with the trend of sustainable technology and is eco-friendly; (4) The main body is shaped like a skateboard, which is popular with individuals, has good comfort, and is also entertaining and recreational, which meets the needs of human life progress. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0017] Figure 2 yes Figure 1 A magnified view of region A in the middle.

[0018] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure along the B-B direction.

[0019] Figure 4 This is a schematic diagram of the liquid channel structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the first dissolved oxygen extraction membrane of the present invention. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0022] Example 1

[0023] See Figures 1-4 This embodiment discloses an underwater breathing device, including a main body 1, a liquid channel 2 penetrating the main body 1, multiple sets of first dissolved oxygen extraction membranes 3 in the liquid channel 2 for extracting dissolved oxygen from the water, a first gas channel 4 on the liquid channel 2, the edge of the first dissolved oxygen extraction membrane 3 communicating with the first gas channel 4, and an exhaust pipe 5 on the first gas channel 4, one end of the exhaust pipe 5 communicating with the first gas channel 4, and the other end extending out of the surface of the main body 1.

[0024] The underwater breathing apparatus is mainly used during diving. When a user is diving with the underwater breathing apparatus, water flows through the liquid channel 2. Under the pressure of the water, dissolved oxygen in the water permeates through the first dissolved oxygen extraction membrane 3 and enters the interior of the first dissolved oxygen extraction membrane 3. Then, the oxygen is collected through the first gas channel 4 and discharged through the exhaust pipe 5. The exhaust pipe 5 can be connected to an external breathing apparatus to provide oxygen to the user.

[0025] See Figure 5 In this embodiment, the first dissolved oxygen extraction membrane assembly 3 includes two parallel membrane sheets 31, with a screen 32 disposed between the two membrane sheets 31. Water flows over the outside of the two membrane sheets 31, and under the transmembrane pressure of the deep water, oxygen in the water permeates through the membrane sheets 31 and enters the space between the two membrane sheets 31.

[0026] Membrane 31 is a polymer membrane with hydrophobic properties. This hydrophobicity causes the surface tension of the liquid (water) to be greater than the capillary force within the membrane pores, preventing the liquid from wetting and passing through. Water is "blocked" outside the membrane pores, while gases dissolved in the water can diffuse selectively and under pressure to reach the other side of the membrane. In this embodiment, dissolved oxygen passes through membrane 31 to reach the gas channels of the sieve 32 structure based on this principle. In this embodiment, membrane 31 is made of polytetrafluoroethylene (PTFE), with a hydrophobic microporous structure and a pore size of approximately 0.01–0.1 μm.

[0027] The function of the screen 32 is to support the two membrane layers 31, increase the structural strength of the first dissolved oxygen extraction membrane 3, and provide oxygen flow space between the two membrane layers 31, preventing them from sticking together or collapsing under water pressure. The screen 32 itself has a mesh, the mesh density of which can be designed according to water depth and pressure. A multi-layer support structure, such as a honeycomb support, can also be used to ensure the pressure resistance of the first dissolved oxygen extraction membrane 3 underwater. The material of the screen 32 can be polyester fiber non-woven fabric or 3D woven mesh, etc.

[0028] See Figures 1-3 The number of first dissolved oxygen extraction membranes 3 is set according to actual needs; the more membranes, the larger the total area and the greater the oxygen production. Multiple sets of first dissolved oxygen extraction membranes 3 are arranged parallel to each other and parallel to the direction of the liquid channel 2. This ensures that the water flow is not obstructed and that oxygen can be extracted from a sufficient amount of flowing water in real time. Water continuously enters from one end of the liquid channel 2, and as it flows through the first dissolved oxygen extraction membranes 3, oxygen is extracted from the water under pressure, and then flows out from the other end of the liquid channel 2.

[0029] Generally, the human body requires 1-2 liters of oxygen per minute. In underwater environments, such as diving, the demand is even higher, increasing to 3-5 liters per minute. Therefore, approximately 500-900 kg / min of water is needed to supply oxygen. Since typical diving activities take place at depths of less than 50 meters in near-shore waters, theoretically, the larger the number and area of ​​the first dissolved oxygen extraction membrane 3, the better, considering factors such as underwater pressure, water flow velocity, and the contact area between the water and the micropores in the membrane 31. This embodiment, through its design, can achieve an oxygen supply rate of 3-7 liters per minute to meet the high oxygen demand of the human body during underwater activities.

[0030] In this embodiment, the surface of the membrane 31 is coated with an antibacterial coating, which can reduce the adhesion of microorganisms in the water and extend its service life; the coating material can be polyethylene glycol, titanium dioxide, etc.

[0031] See Figures 1-2 In this embodiment, a filter screen 6 is provided at the channel opening of the liquid channel 2. The filter screen 6 is generally set at the water inlet of the liquid channel 2. The filter screen 6 is connected to the inner wall of the liquid channel 2 and can filter impurities in the water to prevent impurities in the water from clogging the micropores on the membrane 31 when the water flows through the first dissolved oxygen extraction membrane 3.

[0032] See Figures 3-4 In this embodiment, the first dissolved oxygen extraction membrane 3 is connected to the inner wall of the liquid channel 2, and a gas extraction sealing assembly 7 is provided at the connection. The gas extraction sealing assembly 7 is a flow channel connector, which is installed on the inner wall of the liquid channel. The edge of the first dissolved oxygen extraction membrane 3 is fixed to the flow channel connector and communicates with the first gas channel 4 through the flow channel connector, so that the oxygen in the screen 32 can be collected into the first gas channel 4 through the flow channel connector.

[0033] In this embodiment, the main body 1 has a flat, streamlined structure, resembling the shape of a surfboard, which allows for better movement in water and minimizes water resistance. Simultaneously, to ensure a large area of ​​the first dissolved oxygen extraction membrane 3, the main body 1 has a relatively large volume. Its flat shape makes it easy for users to carry while diving; it can be worn on the back or resting on the main body 1.

[0034] The main body 1 has a grip part 11 on its surface. The grip part 11 can be a handle. When the user lies on the main body 1, he / she can hold the handle with his / her hand for easy control. When the user carries the main body 1 on his / her back, the strap can be passed through the handle for easy binding.

[0035] See Figure 3 The air outlet pipe 5 on the surface of the main body 1 is equipped with an interface 51, which can be connected to the breathing apparatus. When diving, the user simply puts on the breathing apparatus and connects the breathing apparatus's air inlet pipe to the interface 51 of the air outlet pipe 5, which is very convenient.

[0036] Example 2

[0037] See Figures 1-3 The difference between this embodiment and Embodiment 1 is that it also includes a second dissolved oxygen extraction membrane 8.

[0038] The second dissolved oxygen extraction membrane 8 is disposed on a portion of the surface of the main body 1, generally located on the side that is not in contact with the human body. Since the human body mainly comes into contact with the upper surface of the main body 1, the second dissolved oxygen extraction membrane 8 is disposed on the lower surface and side of the main body 1.

[0039] The second dissolved oxygen extraction membrane 8 includes a membrane sheet 31, and a screen 32 is provided between the membrane sheet 31 and the surface of the main body 1. The structure and material of the membrane sheet 31 and the screen 32 are the same as those of the first dissolved oxygen extraction membrane 3.

[0040] The surface of the main body 1 is also provided with a second gas channel 9, the edge of the second dissolved oxygen extraction membrane 8 is connected to the second gas channel 9, and the second gas channel 9 is connected to the gas outlet pipe 5.

[0041] This embodiment can further increase the total area of ​​the membrane 31 by designing the second dissolved oxygen extraction membrane 8. Based on the first dissolved oxygen extraction membrane 3 inside the main body 1, the second dissolved oxygen extraction membrane 8 is added to the surface of the main body 1, making full use of the structural design of the main body 1 and increasing the total area of ​​the membrane 31 as much as possible to obtain more oxygen supply.

[0042] Example 3

[0043] See Figure 1The difference between this embodiment and embodiment 1 is that it also includes a thruster 12, a battery 13, and a control panel. The thruster 12 is located at one end of the liquid channel 2, which is generally the outlet end. The battery 13 is located inside the main body 1 and supplies power to the thruster 12 and the control panel. The control panel is located on the surface of the main body 1 and is used to control the thruster 12. The control panel is located near the grip part 11 or is directly integrated into the grip part 11 for easy operation.

[0044] In this embodiment, the addition of a thruster 12 can provide power to the main body 1, facilitating underwater movement; in addition, a steering mechanism can be added to provide users with more functional options.

[0045] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An underwater breathing device, characterized in that: The device includes a main body, within which a liquid channel extends through the main body. Multiple sets of first dissolved oxygen extraction membranes are installed within the liquid channel for extracting dissolved oxygen from water without the need for power. These first dissolved oxygen extraction membranes are arranged parallel to each other and parallel to the direction of the liquid channel. A first gas channel is also provided on the liquid channel, with the first dissolved oxygen extraction membranes communicating with the first gas channel. An outlet pipe is provided on the first gas channel, with one end communicating with the first gas channel and the other end extending through the surface of the main body. The main body has a flat, streamlined structure. A second dissolved oxygen extraction membrane is provided on a portion of the surface of the main body, and a second gas channel is also provided on the surface of the main body. The second dissolved oxygen extraction membrane is connected to the second gas channel, and the second gas channel is connected to the gas outlet pipe.

2. The underwater breathing apparatus according to claim 1, characterized in that: The first dissolved oxygen extraction membrane comprises two parallel membrane layers with a screen between them.

3. The underwater [device] according to claim 1 or 2 The breathing device is characterized by: The first dissolved oxygen extraction membrane is connected to the inner wall of the liquid channel, and a gas extraction sealing component is provided at the connection.

4. The underwater breathing device according to claim 3, characterized in that: The gas extraction sealing assembly includes a flow channel connector, which is directly or indirectly installed on the inner wall of the liquid channel. The first dissolved oxygen extraction membrane is fixed to the flow channel connector and communicates with the first gas channel through the flow channel connector.

5. The underwater breathing apparatus according to claim 1, characterized in that: The second dissolved oxygen extraction membrane includes a membrane sheet, and a screen is disposed between the membrane sheet and the main body surface.

6. The underwater breathing apparatus according to claim 2 or 5, characterized in that: The membrane is made of PTFE.

7. The underwater breathing apparatus according to claim 2 or 5, characterized in that: The surface of the membrane is coated with an antibacterial coating.

8. The underwater breathing apparatus according to claim 1, characterized in that: A filter screen is installed at the inlet of the liquid channel.

9. The underwater breathing apparatus according to claim 1, characterized in that: It also includes a thruster, a battery, and a control panel. The thruster is located at one end of the liquid channel, the battery is located inside the main body, and the control panel is located on the surface of the main body. The control panel is used to control the thruster, and the battery is used to power the control panel and the thruster.

10. The underwater breathing apparatus according to claim 1, characterized in that: The main body surface is provided with a gripping part.

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