JPH055697U - Drainage structure of snorkel - Google Patents

Abstract

(57) [Abstract] [Purpose] After ensuring the original function of the check valve to prevent the inflow of water from the drainage port, devise the method of supporting the valve body to ensure prompt and reliable drainage of inflow water. To do. [Structure] A drain port is opened between an air intake port and a suction port, a valve body of a check valve is provided outside the drain port, and the valve body is pivotally supported near its periphery, and A pressure chamber is provided around the drain to surround the valve body. Further, a valve body of the second check valve is provided outside the air intake port so as to be pivotally supported near the peripheral edge thereof, and a float is provided outside the pivotally supporting portion of the valve body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a drainage structure for a snorkel used as a swimming equipment. Related to improved drainage performance.

[0002]

[Prior art]

  Generally, a snorkel is widely known as a swimming tool. This snorkel Is a U-shaped tube with one end raised to serve as an air intake, and the lower end lower than this When you use it, you can hold the mouthpiece with your mouth and the air intake will come out above the water surface. By swimming like this, it is possible to breathe in the water.

[0003]   With such a snorkel, water may enter through the air intake or the intake while swimming. This inflow may need to be drained as appropriate. Therefore, conventionally, in FIG. As shown, open a drainage port [a] between the air intake port and the suction port, and A rubber-made check valve valve [B] is placed on the outside of [B], and the valve rod [C] A drainage structure fixed to [d] has been proposed. This one is a valve while swimming The body [b] receives water pressure and closes, preventing the inflow of water. And the inflow water collects In case of draining it in water, open the valve by blowing it in through the mouth. Let the inflow water push out with your breath. On the other hand, when draining over water, the inflow water accumulates. When it goes out on the water in a standing state, the weight of the inflowing water causes the peripheral edge of the valve element (b) to bend downward and the valve seat Since it is separated from [e], the inflow water can be discharged from between the valve body [b] and the valve seat [e]. .

[0004]

[Problems to be solved by the device]

  However, in the above-mentioned conventional one, when the inflow water is drained on the water, the bending of the valve body [b] Since it is configured to open only by valve, it takes time before the valve starts to open, Drainage is completed late. Also, when the amount of inflow water is small, it is necessary to bend the valve body [b]. Therefore, to drain it, you have to blow it out of the mouth and force it to open. However, there was an aspect that was not easy to use.

[0005]   The present invention has been made paying attention to such a point, and its purpose is to After ensuring the original function of the check valve to prevent the inflow of water from the drain, , By devising the method of supporting the valve body, drainage of inflow water on the water It is to provide a drainage structure that can be swiftly and reliably performed.

[0006]

[Means for Solving the Problems]

  In order to achieve the above object, the first aspect of the present invention is to provide a drainage port between an air intake port and a suction port. The front of the drainage structure of the snorkel in which the check valve valve body is provided outside the drainage port. To give And, on the other hand, the valve body is pivotally supported near its periphery and The pressure chamber is provided around the drain port so as to surround the valve body.

[0007]   Further, according to claim 2, the valve element of the second check valve is further provided outside the air intake port. It is provided so as to be pivotally supported near the edge, and the float is provided outside the pivotal support portion of the valve body. It is configured.

[0008]

[Action]

  According to the first aspect, the valve body receives water pressure and closes during swimming, thereby preventing inflow of water. So In the case of, when entering the water, the water flow is directed to the pressure chamber toward the valve body, Immediate closing prevents immediate inflow of water.

[0009]   In addition, if the inflow water collects and is drained in water, it must be sucked in as in the past. If you breathe in through the mouth and forcefully open the valve, the inflow water will be pushed out with the breath. .

[0010]   On the other hand, when draining on the water, if the inflow water accumulates on the water and the valve body Swivels immediately around the pivotal part due to its own weight and the weight of the inflowing water to quickly open the valve and inflow Since the water is drained, the drainage of the inflow water will be completed in a short time.

[0011]   In claim 2, the second check valve is closed by the buoyancy acting on the float during swimming, and the air collecting Inflow of water from the inlet is prevented. And when you get out on the water, the weight of the float The second check valve opens and the air is taken in through the air intake, so the inflow water collects. When it is present, drainage of inflow water from the drain is promoted.

[0012]

【Example】

  Examples will be described below. 1 to 5 show a snorkel equipped with the drainage structure of the embodiment. 1 is a snorkel, and the snorkel 1 is a U-shaped tube. The end is raised to make the air intake port 2, and the other end lower than this is made the suction port 3. , Swim with mouth 3 when using, so that air intake 2 is exposed above the water surface By doing so, it is possible to breathe in the water.

[0013]   Between the air intake port 2 and the suction port 3 of the snorkel 1 as shown in FIG. The drainage port 4 is opened to the inside, and the drainage port 4 is provided with a check valve 5. Valve of the check valve 5 The body 5a has a thin plate-like shape as shown in FIG. 3, and is arranged outside the drainage port 4. . A pivot shaft 5b is integrally provided on the periphery of the valve body 5a, and the pivot shaft 5b is attached to It is loosely fitted to the rack 1 and pivotally supports the valve body 5a near the periphery. 5d Is an O-ring provided on the valve seat 5c around the drainage port 4, and is a valve body 5a when the valve is opened. To ensure water tightness.

[0014]   Reference numeral 6 denotes a bulging portion provided around the drainage port 4, and the bulging portion 6 is provided inside the bulging portion 6. Is provided so that the pressure chamber 7 surrounds the valve body 5a.

[0015]   Further, the air intake port 2 is provided with a second check valve 8. The second check valve 8 Has the same configuration as the check valve 5. That is, as shown in FIG. 4 and FIG. The valve body 8a of the two-way check valve 8 has a thin plate shape and is arranged outside the air intake port 2. The periphery of the air intake port 2 is raised, and a valve seat 8c is formed on the upper surface thereof. An annular groove is formed in the valve seat 8c, and an O-ring 8d is fitted in the annular groove. valve The body 8a is pivotally supported to the side of the air intake port via a pivot shaft 8b. Also, the valve body 8 A float 8d is attached to the outside of the pivot shaft (pivot portion) 8b of a.

[0016]   Next, the operation of the above-described embodiment will be described. During swimming, the valve body 8a receives water pressure and closes. Water is prevented from flowing in. In that case, when entering the water, the water flow is directed to the pressure chamber 7. The valve body 8a is swept away to the valve body 8a and the valve body 8a is immediately closed. Can be stopped.

[0017]   In addition, if the inflow water collects and is drained in water, it must be sucked in as in the past. If you breathe in through the mouth and forcefully open the valve, the inflow water will be pushed out with the breath. .

[0018]   And, as a feature of the present invention, when draining on water, inflow water is accumulated When going out on the water, the valve body 8a rotates about the pivot shaft 8b under its own weight and the weight of the inflow water. Open promptly and the inflow water is discharged. Therefore, due to the bending of the valve body as in the past, If the valve body 8a starts to open more quickly than the one that opens the valve, and drainage can be completed immediately. Both can reliably open and drain the valve regardless of the amount of inflow water.

[0019]   Further, in the case where the second check valve 8 is provided, the submergence is increased so that the air intake port 2 is submerged. Then, the second check valve 8 is closed by the buoyancy acting on the float 8d, and the air from the air intake port 2 Inflow of water is prevented. Then, when it gets on the water, the second non-return is caused by the weight of the float 8d. Since the valve 8 is opened and air is taken in through the air intake port 2, inflow water is accumulated. Occasionally, the drainage of the inflow water from the drainage port 4 can be promoted, and the completion of drainage can be further accelerated. it can.

[0020]   Although the check valves 5 and 8 are structured, the pivot shafts 5b and 8 are different from the valve bodies 5a and 8a. b may be provided integrally or may be provided separately. In short, the valve bodies 5a and 8a are It may be pivotally provided near the periphery.

[0021]

[Effect of device]

  As explained above, the device of claim 1 has the valve element of the check valve pivoted in the vicinity of its periphery. Since it was supported, when inflow water accumulates, when draining this in water as in the past Breathe in through the mouth and forcefully open the valve, pushing out the inflow water with the breath. Can be drained, especially when drained on the water, it will come out on the water with the inflow water accumulated When the valve body rotates around the pivot part under its own weight and the weight of inflow water, The valve opens faster than the valve that opens due to the bending of the valve body, and the inflow water is drained. Therefore, drainage of inflow water can be completed in a short time, and regardless of the amount of inflow water. The valve can be opened reliably for drainage. In addition, a pressure chamber was provided around the drain port surrounding the valve body. Therefore, when entering the water, the valve body will immediately close due to the water flow, and the inflow of water can be reliably prevented. In addition, the check valve's original function of preventing the inflow of water from the drain can be secured.

[0022]   Further, the invention of claim 2 further comprises a valve element of a second check valve on the outside of the air intake port. It is provided so as to be pivotally supported near its periphery, and the float is placed outside the pivotal support of the valve body. Since it is provided, it is possible to prevent the inflow of water from the air intake port while swimming and keep it above the water. If the inflow water is accumulated due to air intake from the air intake port, The drainage of inflow water from the water outlet can be promoted, and the completion of drainage of inflow water can be further accelerated. It

[Brief description of drawings]

FIG. 1 is a front view of a snorkel,

FIG. 2 is a vertical front view around the drainage port,

FIG. 3 is a plan view of the check valve,

FIG. 4 is a vertical sectional side view around the air intake port,

FIG. 5 is a plan view of an air intake port before the valve body is assembled,

FIG. 6 is a view corresponding to FIG. 2 of a conventional one.

[Explanation of symbols]

1 snorkel 2 Air intake 3 mouthpiece 4 drainage outlet 5 Check valve 5a valve body 5b pivot 7 Pressure chamber 8 Second check valve 8a valve body 8b Pivot axis (Pivot part) 8d float

Claims (2)

[Scope of utility model registration request] 1. In a snorkel drainage structure in which a drainage port is opened between an air intake port and a suction port, and a valve body of a check valve is provided outside the drainage port, the valve body is provided near its periphery. A snorkel drainage structure, which is provided so as to be pivotally supported, and a pressure chamber is provided around the drainage port so as to surround the valve body. 2. The valve body of the second check valve is provided outside the air intake port so as to be pivotally supported near the periphery thereof, and the float is provided outside the pivotal support portion of the valve body. Drainage structure of the snorkel described.