JP7208616B2 - submarine - Google Patents

Description

The present invention relates to submersible craft.

Submersibles are also used for leisure activities such as viewing fish. Leisure submersibles are provided with a transparent canopy above the boarding space so that the outside can be seen, and the canopy separates the boarding space from the outside. You can also open and close the canopy to get on and off.

Here, the canopy that can be opened and closed may be flooded from its periphery during diving. Therefore, as disclosed in Patent Document 1, for example, water intrusion is prevented.

JP 2011-195126 A

The prevention of water intrusion is realized by providing an O-ring made of rubber, for example, in the opening and closing portion with which the periphery of the canopy is pressed to prevent water from flowing between the canopy and the opening and closing portion. It utilizes the fact that the canopy is pressed against the opening/closing part due to the differential pressure between the inside and outside of the boarding space.

At shallow depths, the water pressure outside the boarding space is small, and the differential pressure between the inside and outside of the boarding space is extremely small. For this reason, the pressure contact of the canopy is weak, and there is a possibility that it will be flooded. For the comfort of passengers, the inside of the boarding space is adjusted to about 1 atmospheric pressure. Then, before diving starts, there is no differential pressure between the inside and outside of the boarding space, and the canopy is not pressed against the opening/closing part. If you dive in this state, there is a high risk that you will be submerged when you start diving.

Conventionally, the canopy was fixed by means such as hinges to prevent flooding. However, in the hinged position, the canopy periphery is pressed against the closure with non-uniform force depending on the position of the hinge. As a result, there is a possibility that water will enter from a portion where the pressure contact force is weak.

Accordingly, it is an object of the present invention to provide a submersible that has a canopy that can be opened and closed but is not flooded at the start of diving.

The submarine of the present invention is
A canopy that can be opened and closed that separates the boarding space from the outside,
a pressure accumulator provided in the boarding space;
and a pump for sending air in the boarding space to the pressure accumulator.

According to this feature, the air pressure in the boarding space can be made lower than the external pressure (the air pressure on the surface of the water in the surfaced state) before the start of diving, and the canopy can be pressed against the opening/closing part. Prevents submergence at the start of diving.

The submarine of the present invention is
It is characterized by comprising a differential pressure gauge for measuring the pressure difference between the boarding space and the outside.

According to this feature, it is possible to know the strength with which the canopy is pressed against the opening/closing part, and it is possible to reliably prevent water intrusion.

The submarine of the present invention is
A driving unit that drives the pump,
The drive unit drives the pump when the pressure difference measured by the differential pressure gauge is less than a predetermined value, and does not drive the pump when the pressure difference measured by the differential pressure gauge is greater than or equal to the predetermined value. do.

According to this feature, the differential pressure of the predetermined value is reliably achieved by the drive unit. Here, the predetermined value may be designed based on the structure of the canopy and the like. For example, it can be 50 hectopascals.

The submarine of the present invention is
The canopy is characterized by comprising an opening/closing part with which the periphery of the canopy is uniformly pressed.

According to this feature, there is no portion of weak pressure contact on the periphery of the canopy, and it is possible to reliably prevent water intrusion based on differential pressure. Here, "uniformly" means that the peripheral edge of the canopy is a plane, and when a force is applied in the direction normal to the plane, the pressure per unit area on that plane is substantially the same.

The submarine of the present invention is
The opening/closing part may include an O-ring.

This feature provides a specific structure in which the canopy periphery is uniformly pressed.

According to the present invention, it is possible to provide a submersible that has a canopy that can be opened and closed but is not flooded when diving starts.

FIG. 1 is a diagram showing a submarine. FIG. 2 is a cross-sectional view showing the structure of the submersible. FIG. 3 is a diagram showing a state in which the canopy is opened. FIG. 4 is a plan view showing the opening/closing part. FIG. 5 is a cross-sectional view showing the opening/closing part.

Examples of the present invention will be described below.

FIG. 1 is a diagram showing a submarine. A submarine 1 is provided with a transparent canopy 2, and the canopy 2 is opened and closed for boarding and alighting. The lower end of the canopy 2 abuts on the opening/closing part 3 to prevent water intrusion during diving.

FIG. 2 is a cross-sectional view showing the structure of the submersible. 2 shows a cross section taken along the line CC in FIG. 1; The canopy 2 separates a boarding space 4 inside the submarine 1 from the outside.

The boarding space 4 is provided with a seat 41 to ensure the comfort of the passenger, and is also provided with a pressure accumulator 5 . A differential pressure gauge 6 is provided to measure the pressure difference between the boarding space 4 and the outside.

FIG. 3 is a diagram showing a state in which the canopy is opened. The canopy 2 rotates around a hinge 21 to open and close. The hinge 21 is provided at a location that does not affect contact between the canopy 2 and the opening/closing portion 3 .

FIG. 4 is a plan view showing the opening/closing part. As shown in FIG. 4A, the opening/closing part 3 has a circular shape matching the periphery (bottom surface) of the canopy 2, and its surface is planar. The peripheral edge of the canopy 2 is also planar, and the peripheral edge of the canopy 2 is evenly (with substantially equal pressure) pressed against the opening/closing part 3 . There is no portion on the periphery of the canopy 2 where pressure contact with the opening/closing portion 3 is weak.

Here, the opening/closing part 3 preferably has an O-ring 31 as shown in FIG. 4(B). The O-ring 31 is an elastic body such as rubber, and its elasticity adheres to the canopy 2 to prevent water intrusion.

FIG. 5 is a cross-sectional view showing the opening/closing part. It has an O-ring 31 shown in FIG. 4(B). When the canopy 2 is opened, the O-ring 31 protrudes from the opening/closing portion 3 as shown in FIG. 5(A). When the canopy 2 is closed, the O-ring 31 is compressed and closely attached to the canopy 2 as shown in FIG. 5(B). This close contact prevents water intrusion.

The prevention of flooding at the start of diving will be described below.

Before starting diving, the canopy 2 is closed and the pump 51 is operated to send the air in the boarding space 4 to the pressure accumulator 5. - 特許庁This makes the air pressure inside the boarding space 4 lower than outside.

As a result, the peripheral edge of the canopy 2 is pressed against the opening/closing portion 3 due to the differential pressure. Here, since the canopy 2 is uniformly press-contacted, a portion of the peripheral edge of the canopy 2 is not easily separated from the opening/closing portion 3 (water is not flooded).

The pressure contact strength can be grasped by the differential pressure gauge 6 . The amount of air sent to the pressure accumulator can be adjusted so that the differential pressure is sufficient to prevent submergence at the start of diving.

If the pump is driven by electricity, for example, the pump 51 is driven by a driving section (not shown), and the driving section receives a signal from the differential pressure gauge 6 and stops the pump 51 when a predetermined differential pressure is reached. to achieve a predetermined differential pressure.

Here, a predetermined differential pressure value may be determined as a design matter, and may be, for example, 50 hectopascals. The external pressure is 1000 hectopascals and the air pressure inside the boarding space 4 is 950 hectopascals.

Start the dive with a predetermined differential pressure or greater. This can prevent water intrusion.

The submarine has a canopy that can be opened and closed, but is not flooded when diving starts. Use by many marine leisure providers is conceivable.

1 Submersible 2 Canopy 21 Hinge 3 Opening/closing part 31 O-ring 4 Boarding space 41 Seat 5 Pressure accumulator 51 Pump 6 Differential pressure gauge

Claims (3)

A canopy that can be opened and closed that separates the boarding space from the outside,
a pressure accumulator provided in the boarding space;
a pump that sends air in the boarding space to the pressure accumulator ;
a differential pressure gauge that measures the pressure difference between the boarding space and the outside;
a drive unit for driving the pump;
with
The drive unit drives the pump when the pressure difference measured by the differential pressure gauge is less than a predetermined value, and does not drive the pump when the pressure difference measured by the differential pressure gauge is greater than or equal to the predetermined value. Do , submarine. 2. A submersible boat according to claim 1 , characterized by comprising an opening/closing part with which the periphery of said canopy is uniformly pressed. 3. Submersible craft according to claim 2 , characterized in that the opening/closing part comprises an O-ring.

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