Unmanned aerial vehicle and waterproof container

Abstract

The waterproof container (50) comprises: a container body (52) having an opening (56) on the bottom surface when the unmanned aerial vehicle is in a landing state; a waterproof door (58) that opens outward and is installed on the container body (52) in a manner that can close the opening (56); an elastic sealing member (70) that is interposed between the container body (52) and the waterproof door (58) and is used to close the waterproof door (58) in a liquid-tight manner; a first door closing mechanism (92) that maintains the waterproof door (58) in a first door closing state; and a second door closing mechanism (94) that prevents the waterproof door (58) from moving in an opening direction in the second door closing state, wherein the second door closing state is a state in which the waterproof door (58) is pushed in a direction that opposes the elastic force of the elastic sealing member (70) from the first door closing state.

Description

Technical Field

[0001] The invention relates to an unmanned aerial vehicle and a waterproof container. Background Art

[0002] It is expected that the use of unmanned aerial vehicles (UAVs) in marine transportation will increase in the future. There is a UAV that has a float such as a buoyant member (such as foamed polystyrene) and a hollow air chamber (Patent Documents 1 and 2).

[0003] Background Art Literature

[0004] Patent Literature

[0005] Patent Document 1: International Publication No. 2018 / 042610

[0006] Patent Document 2: Japanese Patent Application Publication No. 2015-117003 Summary of the invention

[0007] [Problems to be solved by the invention]

[0008] Ideally, the pontoon should be as small as possible, but a large pontoon is required to handle large cargo. Therefore, it is desirable to use the container as a pontoon, but if the container is not completely sealed, it cannot function as a pontoon. Alternatively, if the door of the container is not completely closed, it cannot maintain waterproofness.

[0009] The object of the present invention is to ensure the airtightness of the container.

[0010] [Technical means to solve the problem]

[0011] (1) The unmanned aerial vehicle of the present invention is characterized in that it is provided with a waterproof container for accommodating cargo, and the waterproof container comprises: a container body having an opening on the bottom surface when the unmanned aerial vehicle is in a landed state; a waterproof door that opens outward and is installed in the container body in a manner that can close the opening; an elastic sealing member that is interposed between the container body and the waterproof door and is used to close the waterproof door liquid-tightly; a first door closing mechanism that maintains the waterproof door in a first door closing state; and a second door closing mechanism that prevents the waterproof door from moving in an opening direction in the second door closing state, the second door closing state being a state in which the waterproof door is pushed in a direction that opposes the elastic force of the elastic sealing member from the first door closing state.

[0012] According to the present invention, when the waterproof door is pushed by an external force, the airtightness of the waterproof door can be improved from the first closed state to the second closed state, thereby ensuring the airtightness of the waterproof container.

[0013] (2) According to the unmanned aerial vehicle described in (1), it may also be characterized in that: the waterproof door is a double door including a first door and a second door.

[0014] (3) The unmanned aerial vehicle according to (1) or (2), may also be characterized in that the elastic seal is also interposed between the first door and the second door.

[0015] (4) The unmanned aerial vehicle according to any one of (1) to (3), wherein the first door closing mechanism and the second door closing mechanism are included in a multi-stage locking mechanism.

[0016] (5) The unmanned aerial vehicle according to any one of (1) to (4) may further include a pressure regulating valve installed in the container body.

[0017] (6) The unmanned aerial vehicle according to any one of (1) to (5), wherein the waterproof door includes a float.

[0018] (7) According to any one of (1) to (6), the unmanned aerial vehicle may also be characterized in that: the waterproof door has a first side end along the opening and closing rotation axis, and a second side end on the opposite side of the first side end, and the outer surface of the waterproof door is a surface drawn by parallel movement of the rotation axis and is inclined toward the direction of the first side end.

[0019] (8) The unmanned aerial vehicle according to (7) may also be characterized in that: the outer surface is a curved surface.

[0020] (9) The unmanned aerial vehicle according to any one of (1) to (8), may also be characterized by further comprising a parachute.

[0021] (10) The unmanned aerial vehicle according to any one of (1) to (9) may further include a wireless device that performs at least one of sending and receiving signals.

[0022] (11) The waterproof container of the present invention is characterized in that it comprises: a container body having an opening on the bottom surface; a double-opening waterproof door that opens outward and is installed on the container body in a manner that can close the opening, and includes a first door and a second door; an elastic sealing member that is interposed between the first door and the second door and the container body respectively, and is used to close the waterproof door liquid-tightly; a first door closing mechanism that maintains the first door and the second door in a first door closing state respectively; and a second door closing mechanism that prevents the first door and the second door from moving in an opening direction respectively in the second door closing state, and the second door closing state is a state in which the first door and the second door are pushed in a direction that opposes the elastic force of the elastic sealing member respectively from the first door closing state.

[0023] According to the present invention, when the waterproof door is pushed by an external force, the airtightness of the waterproof door is improved from the first door-closed state to the second door-closed state. Thus, the airtightness of the waterproof container can be ensured.

[0024] (12) The waterproof container according to (11), wherein the elastic seal is also interposed between the first door and the second door.

[0025] (13) The waterproof container according to (11) or (12), wherein the first door closing mechanism and the second door closing mechanism are included in a multi-stage locking mechanism.

[0026] (14) The waterproof container according to any one of (11) to (13) may also be characterized by further comprising a pressure regulating valve installed on the container body.

[0027] (15) The waterproof container according to any one of (11) to (14), wherein the first door and the second door each include a float.

[0028] (16) According to any one of (11) to (15), the waterproof container may also be characterized in that: the first door and the second door respectively have a first side end along the rotation axis of opening and closing, and a second side end on the opposite side of the first side end; the outer surface of each of the first door and the second door is a surface drawn by moving the rotation axis parallel to each other, and is inclined toward the direction of the first side end.

[0029] (17) According to the waterproof container described in (16), it may also be characterized in that: the inclined surface is a curved surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view of the unmanned aerial vehicle of an embodiment.

[0031] Figure 2 yes Figure 1 A side view of the unmanned aerial vehicle is shown.

[0032] Figure 3 This is a functional block diagram of the device body.

[0033] Figure 4 It is a side view showing the details of the waterproof container.

[0034] Figure 5 yes Figure 4 A cross-sectional view of the waterproof container taken along line VV is shown.

[0035] Figure 6 It is a figure which shows the state which opened the waterproof door.

[0036] Figure 7 It is a figure which shows the 2nd closed state of a waterproof door.

[0037] Figure 8 It is a diagram showing a first variation of the unmanned aerial vehicle according to the embodiment.

[0038] Fig. 9 It is a diagram showing a second variation of the unmanned aerial vehicle according to the embodiment. DETAILED DESCRIPTION

[0039] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention can be implemented in various forms within the scope of the gist thereof, and the description of the embodiments illustrated below is not to be construed as being limited thereto.

[0040] Figure 1 It is a top view of the unmanned aerial vehicle of an embodiment. Figure 2 yes Figure 1 The side view of the unmanned aerial vehicle shown in FIG. 1 is shown in FIG. 1. In the following description, the X1 direction and the X2 direction are referred to as the right and left directions, respectively. The Y1 direction and the Y2 direction are referred to as the front and the rear, respectively. The direction along the plane formed by X1-X2 and Y1-Y2 is referred to as the horizontal direction. The Z1 direction and the Z2 direction are referred to as the top and the bottom, respectively.

[0041] Unmanned aerial vehicles are used to deliver daily necessities, food, electronic equipment, books and other goods 10. The delivery destination includes isolated islands, and the flight path includes water paths such as the sea, rivers and lakes. Unmanned aerial vehicles can be remotely controlled wirelessly, and can also fly autonomously after specifying the target location (landing location).

[0042] The unmanned aerial vehicle is a multi-rotor aircraft that can take off and land in a vertical direction. The unmanned aerial vehicle has a plurality of propellers 12 and a plurality of motors 14 that rotate the propellers 12 respectively. The motor 14 may be located directly below the center of the propeller 12 or not directly below. The propellers 12 and the motor 14 are arranged at equal intervals in a circumferential direction centered on a device body 16. The unmanned aerial vehicle has a device body 16 at its center.

[0043] The unmanned aerial vehicle has a plurality of support arms 18 extending in a horizontal direction from a device body 16. The support arms 18 support the motor 14 at a position away from the device body 16. The support arms 18 have an extension 20 further extending from the position of the motor 14. The extension 20 supports a guard cable 22 that surrounds the plurality of propellers 12 as a whole at its end.

[0044] The unmanned aerial vehicle has a support frame 24. The support frame 24 has, for example, a frame upper portion 28 supporting the device body 16 and the battery 26, and a frame lower portion 30 extending downward from the frame upper portion 28. The frame upper portion 28 has two horizontal rods 32 that are separated in the left-right direction and extend in the horizontal direction.

[0045] The frame lower portion 30 has a plurality of feet 34 extending downward from the horizontal rod 32. The frame lower portion 30 has a plurality of lower end rods 36 extending in the horizontal direction and connected to the lower ends of the plurality of feet 34. The lower end of the frame lower portion 30 (i.e., the lower end rod 36) is located below the lower end of the waterproof container 50 described below, supports the unmanned aerial vehicle on the ground when the unmanned aerial vehicle lands, and prevents the waterproof container 50 from contacting the ground.

[0046] The structure of the support frame 24 is not limited to the above example. For example, the support frame 24 may include a plate-shaped support base on which the battery 26 and the device body 16 are mounted, and the legs 34 may extend downward from the support base.

[0047] The unmanned aerial vehicle has one or more batteries 26. The motor 14 is driven by the power supplied from the battery 26. The battery 26 is arranged at the center of the unmanned aerial vehicle. The battery 26 is supported by a support frame 24 arranged at the center of the unmanned aerial vehicle.

[0048] Figure 3 1 is a functional block diagram of the device body 16. The device body 16 includes a control device 38, a motor drive device 40, a wireless device 42, and a sensor group 44. The device body 16 includes a housing 46 ( Figure 1 and Figure 2 ). In addition, the device body 16 may include a battery that stores electric power to be supplied to the control device 38 in addition to the battery 26 for driving the motor 14.

[0049] The sensor group 44 includes, for example, a three-axis gyro sensor, a three-axis acceleration sensor, and the like. The three-axis gyro sensor outputs, for example, a signal corresponding to the pitch angle, roll angle, and yaw angle of the unmanned aerial vehicle. The three-axis acceleration sensor outputs a signal corresponding to the acceleration of the unmanned aerial vehicle in the front-to-back direction, the acceleration in the left-to-right direction, and the acceleration in the up-and-down direction. The types of sensors included in the sensor group 44 are not limited thereto. For example, the sensor group 44 may also include a geomagnetic sensor that outputs a signal corresponding to the direction of the unmanned aerial vehicle.

[0050] The wireless device 42 is a device responsible for at least one of sending or receiving signals. The wireless device 42 includes, for example, a GPS (Global Positioning System) receiver. The wireless device 42 includes, for example, a beacon transmitter, which sends a signal containing its own location information, i.e., a beacon. By using the beacon, the location of an unmanned aerial vehicle with an unknown location can be identified and quickly retrieved.

[0051] The wireless device 42 may also include a receiver and a transmitter, wherein the receiver receives instructions from an external operation input device (not shown), and the transmitter sends the status of the unmanned aerial vehicle to the external operation input device. The external operation input device is, for example, a personal computer or a dedicated input device for the user of the unmanned aerial vehicle (the operator who monitors the flight). The wireless device 42 outputs the content of the received signal to the control device 38, or sends a signal obtained from the control device 38. The unmanned aerial vehicle may also have an antenna 48 connected to the wireless device 42. The antenna 48 is, for example, installed on the upper part of the device body 16 (see Figure 2 ).

[0052] The motor driver 40 receives power from the battery 26 and supplies the motor 14 with power corresponding to the command value received from the control device 38. The motor 14 rotates at a speed corresponding to the power (voltage) supplied from the motor driver 40. The unmanned aerial vehicle includes a motor driver 40 for each of the plurality of motors 14.

[0053] The control device 38 includes a storage device and a microprocessor that executes a program stored in the storage device. The control device 38 controls the motor 14 based on the signal (information) input from the sensor group 44 and the signal (information) input from the wireless device 42. The control device 38 controls the rotation speed of each of the plurality of motors 14 based on the signal input from the sensor group 44, thereby controlling the posture (pitch angle, roll angle, yaw angle) and movement (forward, backward, ascend, descend, leftward movement, rightward movement) of the unmanned aerial vehicle.

[0054] The control device 38 can also determine whether the unmanned aerial vehicle has landed on water or landed. And, when it is determined that the unmanned aerial vehicle has landed on water or landed, the control device 38 can send this situation through the wireless device 42.

[0055] The components constituting the device body 16 are not necessarily housed in the common housing 46. For example, the housing housing the motor drive device 40 may be separate from the housing housing the control device 38 and the wireless device 42. In addition, the housing housing the control device 38 may be separate from the housing housing the wireless device 42.

[0056] It is desirable that the housing (eg housing 46) housing the motor 14, battery 26, sensor group 44, control device 38, etc. has waterproof properties. With such a configuration, even if the unmanned aerial vehicle falls over after landing in water, malfunction can be avoided.

[0057] The unmanned aerial vehicle has a waterproof container 50 for accommodating the cargo 10 (see Figure 2 The waterproof container 50 is, for example, a rectangular parallelepiped. The waterproof container 50 is mounted on the support frame 24. For example, the waterproof container 50 is mounted on the lower side of the frame upper portion 28. In addition, the waterproof container 50 is located inside the plurality of legs 34. The device body 16 is located on the upper side of the waterproof container 50.

[0058] The waterproof container 50 is configured to be liquid-tight. That is, the waterproof container 50 is configured so that external moisture does not penetrate into the waterproof container 50. By making the waterproof container 50 liquid-tight, when the unmanned aerial vehicle lands on water, the buoyancy of the waterproof container 50 can be obtained.

[0059] Figure 4 It is a side view showing the details of the waterproof container 50 . Figure 5 yes Figure 4 The waterproof container 50 is a cross-sectional view taken along the line VV shown in FIG. The waterproof container 50 has a container body 52. ​​The container body 52 is made of a water-impermeable material such as carbon, plastic, or metal.

[0060] A pressure regulating valve 54 (for example, a check valve) is attached to the container body 52. ​​The pressure regulating valve 54 discharges gas when the internal pressure rises, and can also automatically close at an appropriate internal pressure.

[0061] The container body 52 has an opening 56 on the bottom surface when the unmanned aerial vehicle is in the landing state, and the cargo 10 can be carried in or out through the opening 56 ( Figure 2 ). A waterproof door 58 is installed on the container body 52 to close the opening 56. The waterproof door 58 can be opened and closed manually or by an actuator (not shown).

[0062] The waterproof door 58 has a door body 60. The door body 60 is made of a water-impermeable material such as carbon, plastic or metal. The waterproof door 58 has a pontoon 62. For example, the pontoon 62 is attached to the outer side of the door body 60. The pontoon 62 is, for example, a resin foam, or a bag or box filled with gas. As the resin foam, there are expanded polystyrene, polyvinyl chloride foam, etc. The pontoon 62 is not limited to the example of constituting the entire outer surface of the waterproof door 58, and its position and shape can be changed.

[0063] Figure 61 is a diagram showing a state where the waterproof door 58 is opened. The waterproof door 58 is a double door that opens outward and includes a first door 58A and a second door 58B. The waterproof door 58 (each of the first door 58A and the second door 58B) has a first side end 66 along a rotation axis 64 for opening and closing, and a second side end 68 on the opposite side of the first side end 66. The outer surface (surface of the floating boat 62) of the waterproof door 58 (each of the first door 58A and the second door 58B) is a surface drawn by parallel movement of the rotation axis 64, and is inclined in the direction of the first side end 66. The outer surface is a curved surface.

[0064] The waterproof container 50 has an elastic seal 70 for closing the waterproof door 58 in a liquid-tight manner. The elastic seal 70 is interposed between the container body 52 and the waterproof door 58. The elastic seal 70 is compressed (elastically deformed) between the container body 52 and the waterproof door 58. As a result, the gap between the container body 52 and the waterproof door 58 disappears, and liquid-tightness is achieved.

[0065] An elastic seal 72 (for example, a first elastic seal 72A and a second elastic seal 72B) is also interposed between the first door 58A and the second door 58B. The first elastic seal 72A has a concave portion, and the second elastic seal 72B has a convex portion, and the concave portion and the convex portion are engaged with each other. Figure 6 As shown, the side wall is inclined to expand the recess, thereby making it easier for the convex portion to enter the recess. Figure 6 In the example of FIG. 1 , no pontoon is provided below the first elastic seal 72A and the second elastic seal 72B, but a pontoon may be provided.

[0066] The waterproof container 50 has a locking mechanism 74 (e.g., a latch) for the waterproof door 58. The locking mechanism 74 is located at a position corresponding to the second side end 68 (opposite to the rotation axis 64) of the waterproof door 58 after closing. Figure 5 As shown in FIG. 1 , the locking mechanism 74 is provided on the container body 52 (on both sides along the rotation axis 64). The locking mechanism 74 includes a locking part 78 having a plurality of claws 76 (a first claw 76A and a second claw 76B) arranged therein. The locking part 78 is held by a mounting portion 80 of the container body 52 so as to be able to move linearly only in a direction D along the rotation axis 64. In addition, the locking part 78 is arranged outside the waterproof door 58, and the spring 82 is compressed to apply a force to the locking part 78 in a direction close to the waterproof door 58.

[0067] When the waterproof door 58 is closed, a part of it (engagement portion 84) hits the inclined outer surface 86 of the first claw 76A. The inclined outer surface 86 is inclined relative to the linear movement direction of the locking part 78. The inclined outer surface 86 is inclined relative to the direction toward the opening and closing trajectory of the waterproof door 58. Therefore, when the engagement portion 84 of the waterproof door 58 pushes the outer surface, the locking part 78 moves in the direction away from the waterproof door 58 against the force of the spring 82. In addition, the engagement portion 84 is engaged with the inner surface 88 of the first claw 76A. The inner surface 88 is parallel to the linear movement direction of the locking part 78, for example, and is not inclined relative to this direction.

[0068] A pin 90 is attached to the lock member 78. By pulling the pin 90 in a direction away from the waterproof door 58 against the force of the spring 82, the engagement between the first claw 76A and the engagement portion 84 can be released.

[0069] The waterproof container 50 has a first door closing mechanism 92 (for example, a first claw 76A). The first door closing mechanism 92 is included in the multi-stage (two or more stages) locking mechanism 74. The first door closing mechanism 92 is used to maintain the first closed state of the waterproof door 58. Figure 4 As shown, the first door 58A and the second door 58B are respectively engaged with the first claw 76A ( Figure 5 ) is the first door-closed state. In the first door-closed state, the elastic seal 70 is less compressed, so there is a case where the airtightness is insufficient.

[0070] Figure 7 7 is a diagram showing the second closed state of the waterproof door 58. The waterproof container 50 has a second closed door mechanism 94 (e.g., the second claw 76B). The second closed door mechanism 94 is included in the multi-stage locking mechanism 74. In the second closed door state, the second closed door mechanism 94 prevents the waterproof door 58 from moving in the door opening direction. The second closed door state is a state in which the waterproof door 58 is pushed in a direction opposing the elastic force of the elastic seal 70 from the first closed door state. For example, when the unmanned aerial vehicle lands on water, the waterproof door 58 may be pushed.

[0071] According to the present embodiment, when the waterproof door 58 is pushed by an external force, the airtightness of the waterproof door 58 can be improved from the first closed state to the second closed state, thereby ensuring the airtightness of the waterproof container 50. In particular, if the outer surface of the waterproof door 58 is a curved surface, the direction of the external force can more easily improve the airtightness of the waterproof door 58. Examples of the external force include the impact caused by the collision of the waterproof door 58 with water and the buoyancy generated by the floating boat 62.

[0072] Figure 8 FIG. 1 is a diagram showing a first variation of the unmanned aerial vehicle of the embodiment. The waterproof door 58 improves the airtightness when the unmanned aerial vehicle lands on water, so it is ideal to land on water with the waterproof door 58 facing downward. Figure 8 The container 50 is shown with a parachute 196. The parachute 196 is deployed, for example, after detecting an abnormality of the unmanned aerial vehicle. Thus, the waterproof container 50 can be immersed in water when the waterproof door 58 is facing downward, that is, when the unmanned aerial vehicle is in a horizontal or nearly horizontal posture.

[0073] Fig. 9 2 is a diagram showing a second variation of the unmanned aerial vehicle of the embodiment. In this example, a first door closing mechanism 292 (e.g., first claw 276A) and a second door closing mechanism 294 (e.g., second claw 276B) are present around the rotation axis 264 of the waterproof door 258. The first claw 276A and the second claw 276B move around the rotation axis 264 as the waterproof door 258 is opened and closed.

[0074] Even if the first claw 276A and the second claw 276B want to move in the direction of opening the waterproof door 258, they are blocked by the engaging portion 284. The engaging portion 284 is formed integrally with a lever 298. The lever 298 is mounted on the container body 252 in a manner that allows it to swing around an axis parallel to the rotation axis 264 of the waterproof door 258. In addition, the stretched spring 282 applies a force to the lever 298 in a direction that causes the engaging portion 284 to approach the first claw 276A and the second claw 276B. When the waterproof door 258 moves in the direction of closing, the lever 298 swings in a manner that pushes the engaging portion 284 upward through the first claw 276A and the second claw 276B. As a result, the waterproof door 258 can be closed without being restricted by the engaging portion 284. Furthermore, when the first closed state or the second closed state is to be released, the control rod 298 can be moved in a direction away from the first claw 276A or the second claw 276B of the engagement portion 284. In addition, since the control rod 298 passes through the container body 252, it is covered by the outer cover 200 to achieve waterproofing.

[0075] The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the configuration described in the embodiments may be replaced by a configuration that is substantially the same, a configuration that exhibits the same effects, or a configuration that can achieve the same purpose.

Claims

1. An unmanned aerial vehicle, characterized in that: Have a waterproof container for the goods, and The waterproof container has: a container body having an opening on a bottom surface when the unmanned aerial vehicle is in a landed state; a waterproof door, which opens outward and is mounted on the container body in a manner capable of closing the opening; An elastic sealing member, interposed between the container body and the waterproof door, for closing the waterproof door liquid-tightly; a first door closing mechanism for maintaining the waterproof door in a first door closing state; and The second door closing mechanism prevents the waterproof door from moving in the door opening direction in the second door closing state, wherein the second door closing state is a state in which the waterproof door is pushed in a direction opposing the elastic force of the elastic seal from the first door closing state, so that the elastic seal is more compressed than in the first door closing state.

2. The unmanned aerial vehicle according to claim 1, characterized in that: The waterproof door is a double-opening door comprising a first door and a second door.

3. The unmanned aerial vehicle according to claim 2, characterized in that: The elastic seal is also interposed between the first door and the second door.

4. The unmanned aerial vehicle according to claim 1, characterized in that: The first door closing mechanism and the second door closing mechanism are included in a multi-stage locking mechanism.

5. The unmanned aerial vehicle according to claim 1, characterized in that: A pressure regulating valve is also provided on the container body.

6. The unmanned aerial vehicle according to claim 1, characterized in that: The waterproof door is provided with a pontoon.

7. The unmanned aerial vehicle according to any one of claims 1 to 6, characterized in that: The waterproof door has a first side end portion along a rotation axis for opening and closing, and a second side end portion on the opposite side of the first side end portion. The outer surface of the waterproof door is a surface drawn by parallel translation of the rotation axis, and is inclined toward the first side end.

8. The unmanned aerial vehicle according to claim 7, characterized in that: The outer surface is a curved surface.

9. The unmanned aerial vehicle according to any one of claims 1 to 6, characterized in that: Also has a parachute.

10. The unmanned aerial vehicle according to any one of claims 1 to 6, characterized in that: A wireless device is also provided for at least one of transmitting and receiving signals.

11. A waterproof container, characterized in that: have: A container body having an opening at a bottom surface; A double-opening waterproof door, which opens outward and is installed on the container body in a manner that the opening can be closed, and includes a first door and a second door; An elastic sealing member, interposed between the first door and the second door and the container body, for closing the waterproof door liquid-tightly; a first door closing mechanism for maintaining the first door and the second door in a first door closing state; and The second door closing mechanism prevents the first door and the second door from moving toward the door opening direction respectively in the second door closing state, wherein the second door closing state is a state in which the first door and the second door are pushed toward the direction opposing the elastic force of the elastic seal respectively from the first door closing state, so that the elastic seal is more compressed than in the first door closing state.

12. The waterproof container according to claim 11, characterized in that: The elastic seal is also interposed between the first door and the second door.

13. The waterproof container according to claim 11, characterized in that: The first door closing mechanism and the second door closing mechanism are included in a multi-stage locking mechanism.

14. The waterproof container according to claim 11, characterized in that: A pressure regulating valve is also provided on the container body.

15. The waterproof container according to claim 11, characterized in that: The first door and the second door each include a floating boat.

16. The waterproof container according to any one of claims 11 to 15, characterized in that: The first door and the second door each have a first side end portion along a rotation axis for opening and closing, and a second side end portion located on the opposite side of the first side end portion; The outer surface of each of the first door and the second door is a surface drawn by parallel translation of the rotation axis, and is inclined toward the first side end portion.

17. The waterproof container according to claim 16, characterized in that: The outer surface is a curved surface.

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