JPH04108565U - Underwater breathing apparatus - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an underwater breathing device that blocks the vent hole and prevents water from entering the breathing gas supply device when the mouthpiece is removed from the mouth. [Structure] The ventilation hole 5 of the connecting short pipe 3 of the breathing gas supply device 2 to which the mouthpiece 4 is connected is closed on the breathing gas supply device 2 side with a lid 9b, and the mouthpiece 4 is inserted into the mouth. A closing member 9 is provided which, when attached, pushes the lid 9b toward the respiratory gas supply device 2 to release the obstruction.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a snorkeling device used for skin diving and scuba diving. related to underwater breathing equipment such as pipes and regulators.

0002

[Conventional technology]

In this type of underwater breathing apparatus, the mouthpiece breathing hole and the breathing gas supply vent Because the mouthpiece is in communication with the mouthpiece, if it is removed from the mouth underwater, Water enters the breathing gas supply device through the breathing hole in the gas tank.

0003 For this reason, when using a snorkel, if water gets in, you can blow into it to supply air. Drain the water from your mouth, or install a check valve on the air supply pipe and blow into the air supply pipe. The internal pressure inside the tank was increased to open the check valve and drain out the water that had entered.

0004 In addition, open types that use compressed air as a breathing gas and release the exhaust into the water, Install a check valve on the breathing gas supply, and if water gets in, blow in or The check valve uses the pressure of breathing gas to increase the internal pressure inside the breathing gas supply device. was opened and the water that had entered was drained out.

[0005] In addition, a mixture of oxygen, nitrogen, helium, hydrogen, etc. can be used as a breathing gas, and the exhaust gas can be re-exhausted. The semi-closed type and closed type used have a valve at the opening that can be opened and closed by hand, and the circulation circuit This prevented water from entering inside.

[0006]

[Problem that the idea aims to solve]

However, in the case of an open type, infiltrated water must be drained each time, and circulation is required. In the case of a ring type, it is cumbersome to operate the valve by hand each time, and furthermore, there are If water entered, it could cause trouble.

[0007] Therefore, with this invention, when the mouthpiece is removed from the mouth, it closes the ventilation hole and supplies breathing gas. The purpose is to provide an underwater breathing apparatus that prevents water from entering the vessel. Ru.

[0008]

[Means to solve the problem]

In order to achieve the above purpose, the mouthpiece for a breathing apparatus of the present invention is the first invention. is connected to a connecting short tube with a vent to the breathing gas supply which communicates with the breathing gas source. Connect the flange that fits into the mouth and the mouthpiece that has a breathing hole that communicates with the ventilation hole. In the underwater breathing apparatus, a closing member can be slid into the ventilation hole and the breathing hole. and a lid body that closes the breathing gas supply side of the vent hole at one end of the closing member. the closing member is biased toward the mouthpiece, and the other end is provided with a bullet that protrudes from the breathing hole. At the same time, the closure member is placed at the other end of the closure member so as to allow the closure member to breathe when inserted into the mouth. It is characterized by the formation of a flange that pushes toward the gas supply device.

[0009] Further, in the second invention, the breathing gas supply is controlled in conjunction with the sliding of the closing member. It is characterized by the provision of an on-off valve mechanism that opens and closes the connection between the supply device and the breathing gas source.

0010

[Effect]

With the first configuration, the lid body is elastic when the mouthpiece is removed from the mouth. It is energized by the emitting member and closes the breathing gas supply side of the vent, preventing water from entering. Stop. Also, when you put the mouthpiece in your mouth, it may protrude from the breathing hole of the mouthpiece. The flange is pushed by the teeth and the closing member is pushed towards the breathing gas supply device, blocking the vent hole. is released and breathing gas is introduced.

[0011] Further, with the second configuration, when the mouthpiece is attached to the mouth, the closing member can be used as a breathing gasket. When the breathing gas supplier is pushed toward the breathing gas supply side, the Since the on-off valve is opened, the mouthpiece is placed in the mouth and the breathing gas source is removed. Breathing gas is provided.

0012

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0013] 1 and 2 show a first embodiment of the present invention, in which an underwater breathing apparatus 1 includes a breathing gasket. A mouthpiece 4 is connected to a short connecting pipe 3 of the mouthpiece supply device 2, and a mouthpiece 4 is connected to the short connecting pipe 3. The mouthpiece 4 has a flange that fits into the mouth and has protrusions 6 for biting. 7 and a breathing hole 8 communicating with the ventilation hole 5 are formed.

[0014] Further, a closing member 9 is slidably inserted into the ventilation hole 5. this closure The member 9 includes a hollow cylindrical body 9a that is longer than the vent hole 5, and a breathing gas supply device for the cylindrical body 9a. The lid body 9b attached to the 2nd side end and the mouthpiece 4 side end of the cylindrical body 9a. It has a flange 9c attached thereto.

[0015] Moreover, this closing member 9 is connected to the back surface of the lid body 9b and the breathing gas supply device 2 facing thereto. A coil spring 10 compressed between the flange 9c and the wall of the mouthpiece It protrudes to approximately the same position as the biting protrusions 6, 6 of the base 4.

[0016] The cylindrical body 9a has a breathing gas introduction hole 9d formed on the breathing gas supply device 2 side. In addition, the lid body 9b has a hole 5 that contacts the side wall surface of the vent hole 5 of the breathing gas supply device 2 to close the vent hole 5. A sealing packing 9e is provided.

[0017] The underwater breathing apparatus 1 configured in this way has a mouthpiece 4 shown in FIG. When the lid body 9b is separated from the ventilation hole 5 due to the biasing force of the coil spring 10, to prevent water from entering the breathing gas supply device 2 from the breathing hole 8 of the mouthpiece 4. and prevent.

[0018] In addition, when the mouthpiece 4 shown in Fig. 2 is attached to the mouth, Since the flange 7 is fitted between the lips and teeth, the flange 9c hits the teeth and the closure member 9 prevents breathing. Since it is pushed toward the gas supply device 2 side and the ventilation hole 5 is unblocked by the lid body 9b, The breathing gas in the breathing gas supply device 2 flows through the breathing gas introduction hole 9d of the cylinder 9a into the mouthpiece. It is introduced into the breathing hole 8 of the space 4 and can breathe.

[0019] Therefore, as soon as the mouthpiece 4 is removed from the mouth, the vent hole 5 is blocked and water is released. This prevents water from entering, so even if you put the mouthpiece 4 in your mouth again, the so-called water will not drain. You can resume breathing without straining.

[0020] Therefore, the present invention should not be applied to underwater breathing devices such as snorkels and regulators. For example, you can easily change the mouthpiece from a snorkel to a regulator, etc.

[0021] 3 and 4 show that the closing member 11 is suddenly closed when the mouthpiece 4 is removed from the mouth. This shows the second embodiment of the present invention, which prevents the vent hole 5 from opening even when pressed. The ventilation hole 5 of the short tube 3 and the breathing hole 8 of the mouthpiece 4 are formed in an elliptical shape, and the closing part The hollow cylindrical body 11a of the material 11 is similarly formed into an elliptical shape, and the cylindrical body 11a is , when the ventilation hole 5 is closed, the portion 11b housed in the connecting short pipe 3 and the ventilation hole 8 The part 11c protruding from the breathing hole 8 is divided into two parts, and the part 11c protruding from the breathing hole 8 is divided into two parts. When the protruding part 11c is rotated 90 degrees, the short part of the part 11b is It is locked to the circular part and acts as a stopper, preventing the closing member 11 from being pushed.

[0022] In addition, when attaching the mouthpiece 4 to the mouth, from the above locked state to the breathing hole If the part 11c protruding from 8 is rotated 90 degrees around the axis and attached, the result shown in FIG. The closing member 11 is pushed toward the breathing gas supply device 2 so as to Similarly, the breathing gas in the breathing gas supply device 2 is introduced into the breathing hole 8 of the mouthpiece 4. I can breathe.

[0023] 5 and 6 show a third embodiment of the present invention, in which an underwater breathing apparatus 20 is used for breathing. A connecting short pipe 22 is connected to one wall of the gas supply device 21, and a breathing gas source (Fig. (not shown) respectively, and a mouth pipe is connected to the connecting short pipe 22. A breathing gas introduction pipe 23 is connected to a gas supply pipe 4, and an on-off valve 24 is provided in the breathing gas introduction pipe 23.

[0024] The closing member 25, which is slidably inserted into the ventilation hole 22a of the connecting short pipe 22, Similar to the second embodiment, the hollow cylinder is divided into two parts: a storage cylinder part 25a and a protruding cylinder part 25b. It has a body and is configured to be lockable by rotating the protruding cylindrical portion 25b by 90 degrees. There is.

[0025] Further, a push rod 25d is provided on the back surface of the lid body 25c of the closing member 25. A coil spring 26 is wound around the push rod 25d.

[0026] The on-off valve 24 is connected to a valve body 24b by a coil spring 27 wound around a valve stem 24a. This is a device that keeps the breathing gas introduction pipe 23 closed at all times, and is provided at the tip of the valve stem 24a. When the operating end side of the lever 24c is pushed, the valve opens, and the push rod 25d closes the valve. When the member 25 is pushed, it is provided at a position where it pushes the operating end side of the lever 24c.

[0027] With this configuration, as shown in FIG. When the ventilation hole 22a of the connecting short pipe 22 is closed by the connecting tube 25c, breathing gas cannot be introduced. The pipe 23 is closed by the on-off valve 24, but the figure shows the mouthpiece 4 attached to the mouth. In state 6, the closing member 25 is pushed and the lid body 25c unblocks the ventilation hole 22a. At the same time, the push rod 25d provided on the back of the lid body 25c acts as an on-off valve. Push the operating end side of the lever 24c of 24 to open the breathing gas introduction tube 23 and supply the breathing gas. Air from the source is introduced into the breathing gas supply 21 to allow breathing through the mouthpiece 4. Ru.

[0028] Therefore, when the mouthpiece 4 is removed from the mouth, the breath from the breathing gas source It is possible to cut off the supply of intake gas and prevent water from entering the breathing gas supply device 21. When the mouth piece 4 is placed in the mouth, breathing gas is supplied from the breathing gas source, so the There is no need to open and close the on-off valve from the breathing gas source as in the past, simplifying the operating procedure. be converted into

[0029] In addition, when the mouthpiece 4 is attached to the mouth, breathing gas is supplied from the breathing gas source. This eliminates troubles caused by forgetting to open the on-off valve, and furthermore, the mouthpiece 4 When you remove the breather from your mouth, the supply of breathing gas from the breathing gas source is cut off, so Breathing gas in the gas source can be used effectively.

[0030] In addition, in each of the above embodiments, a hollow cylinder is provided in the ventilation hole of the connecting short pipe and the breathing hole of the mouthpiece. Although I explained it as something that slides the body, it is also a plate or rod that does not block the ventilation holes and breathing holes. It may also be a closing member for sliding things.

[0031]

[Effect of the idea]

As described above, the first invention of the present invention is to In a medium-sized breathing apparatus, there is a One end is provided with a lid that closes the breathing gas supply side of the ventilation hole, and the other end is provided with a lid that closes the breathing gas supply side of the ventilation hole. A closing member protruding from the breathing hole of the base is slidably inserted into the ventilation hole, and the closing member is slidably inserted into the ventilation hole. The chain member is biased toward the mouthpiece side by the elastic member, and the other end of the closure member is biased toward the mouthpiece side. , since a flange is formed that pushes the closing member toward the breathing gas supply device when it is inserted into the mouth, When the mouthpiece is removed from the mouth, the lid body is urged by the resilient member and closes to the vent hole. Close the breathing gas supply side of the device to prevent water from entering. Also, mouthpiece When the breather is placed in the mouth, the flange is pressed by the teeth and the closing member is pushed towards the breathing gas supply side. The vent is unblocked and breathing gas is introduced.

[0032] In addition, in the second invention, in conjunction with the pushing of the closing member toward the breathing gas supply device, , a valve opening mechanism is provided to open the on-off valve between the breathing gas supply device and the breathing gas source. If the ventilation hole of the connecting short pipe is blocked by the lid of the closing member, the on-off valve will close. However, when the mouthpiece is attached to the mouth, the closing member is pushed. The lid unblocks the vent and opens the on-off valve to remove air from the breathing gas source. Breathing can be done through the mouthpiece by introducing the inhaled gas into the breathing gas supply device.

[0033] Therefore, when the mouthpiece is removed from the mouth, breathing from the breathing gas source It can cut off the gas supply and prevent water from entering the breathing gas supply device. When the breather is placed in the mouth, breathing gas is supplied from the breathing gas source, so there is no need to worry about This eliminates the need to open and close the on-off valve from a breathing gas source, simplifying the operating procedure. .

[0034] In addition, when the mouthpiece is placed in the mouth, breathing gas is supplied from the breathing gas source. This eliminates troubles caused by forgetting to open the on-off valve, and also allows you to easily remove the mouthpiece from your mouth. The supply of breathing gas from the breathing gas source is cut off when the breathing gas is removed. Breathing gas in the source can be used effectively.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the underwater breathing apparatus according to the first embodiment of the present invention with the ventilation holes closed.

FIG. 2 is a cross-sectional view of the underwater breathing apparatus according to the first embodiment of the present invention with the ventilation holes open;

FIG. 3 is a perspective view of the underwater breathing apparatus according to the second embodiment of the present invention with the ventilation holes closed;

FIG. 4 is a perspective view of the underwater breathing apparatus according to the second embodiment of the present invention with the ventilation holes open;

FIG. 5 is a sectional view of the underwater breathing apparatus according to the third embodiment of the present invention with the ventilation holes closed;

FIG. 6 is a cross-sectional view of the underwater breathing apparatus according to the third embodiment of the present invention with the vents open;

[Explanation of symbols]

1, 20... Underwater breathing apparatus, 2, 21... Breathing gas supply device,
3, 22... Connection short pipe, 4... Mouthpiece, 5, 22a...
Ventilation hole, 7... Tsuba for fitting into the mouth, 8... Breathing hole, 9, 11,
25... Closing member, 9b, 25c... Lid, 9c... Flange, 1
0, 26...Coil spring, 24...Opening/closing valve

Claims (2)

[Scope of utility model registration request] Claim 1: A connecting short pipe in which a ventilation hole is formed for a breathing gas supply device that communicates with a breathing gas source, and a flange for fitting into the mouth;
In an underwater breathing apparatus that is connected to a mouthpiece formed with a breathing hole that communicates with the ventilation hole, a closing member is slidably inserted into the ventilation hole and the breathing hole, and one end of the closing member is connected to a mouthpiece formed with a breathing hole that communicates with the ventilation hole. A lid that closes the gas supply side is provided, and an elastic member is provided that urges the closing member toward the mouthpiece side and projects the other end from the breathing hole, and the other end of the closing member is provided with a resilient member that closes the mouthpiece. An underwater breathing apparatus characterized by forming a flange that pushes a closing member toward a breathing gas supply device when fitted. 2. The underwater breathing apparatus according to claim 1, further comprising an on-off valve mechanism that opens and closes between the breathing gas supply device and the breathing gas source in conjunction with the sliding of the closing member.