CN201158452Y - Water stop structure of breathing tube - Google Patents

Abstract

The utility model discloses a stagnant water structure of respiratory tube, it contains a cavity body and a set of lid. The hollow body is provided with a first opening end and a second opening end opposite to the first opening end, and the sleeve cover is pivoted on the hollow body and is close to the first opening end. When the sleeve cover is not immersed in the liquid, the sleeve cover can be positioned at one position by the gravity of the sleeve cover, and the outside air outside the two open ends of the hollow body can be in fluid communication with the breathing tube; after one part of the cover is immersed in the liquid, the joint surface of the cover is sealed at the first opening end by the buoyancy provided by the liquid to the cover, so as to achieve the effect of preventing the liquid from entering the hollow body.

Description

Waterproof structure of breathing tube

technical field

The utility model relates to a water-stop structure device for a breathing tube, in particular to a water-stop structure device for a breathing tube used in snorkeling.

Background technique

For those who love snorkeling, the snorkel is one of the indispensable equipment. Even beginners with poor swimming skills can immediately enjoy the fun of snorkeling as long as they learn how to use the snorkel. Therefore, manufacturers are constantly improving, hoping to provide more convenient and better snorkels for snorkeling.

In the snorkel, the water-stop structure is one of the important components. The operation effect of the water-stop structure is the key for divers to consider when choosing a snorkel. The water-stop structure is set at the end of the breathing tube, and there is a floating ball inside. The function of the floating ball is like an air floating barrel. When the breathing tube is buried in the water, the floating ball will float upwards. Appropriate linkage design can seal the snorkel so that seawater cannot enter, allowing snorkelers to easily dive into the sea.

BACKGROUND OF THE INVENTION As shown in FIG. 1A and FIG. 1B , the water-stop structure of the breathing tube mainly includes a main body 10 and a shell 20 , and a shielding device 30 is provided inside the shell 20 . The main body 10 is a hollow tubular body with a hollow opening 14 that can extend to the opening of the original breathing tube. Fasteners 11 , 12 , 13 are provided on the main body 10 for combining with the shell 20 . The housing 20 is in the shape of a bowl, and a shielding device 30 is provided inside. The shielding device 30 includes an orienting movable rod 31 disposed in the shaft hole of the housing 20 , a cover 32 is disposed above it, and a floating member 33 is hooked below the orienting movable rod 31 . The operation principle of the above-mentioned water-stopping structure is that the floating member 33 is buoyed by liquid to push the directional movable rod 31, and the cover body 32 closes the opening 14, so as to achieve the effect of water-stopping of the breathing tube.

Due to the large number of components of the above-mentioned water-stop structure in the background art, not only the assembly is relatively complicated, but also the production cost of the manufacturer is increased. In addition, when the breathing tube of the background technology is actually used, the water-stop structure is automatically closed before the user dives into the water, or the water is easy to enter, so that the function of the breathing tube cannot be performed normally.

US Patent Nos. 7,077,127 and 6,904,910 both disclose a breathing tube device. The water stop valves of the breathing tubes comprise a partition fixed to a connecting device disposed near the opening at the top of the breathing tube. When the breathing tube is immersed in water, a floating device of the breathing tube will drive the connecting device of the water stop valve, and when the opening end of the breathing tube is immersed in water, the connecting device will make the partition close the opening of the breathing tube to stop the water Effect. The main disadvantage of these water stop valves is that there are many components and the assembly is relatively complicated, and the manufacturer needs to consider the cost of the parts and assembly during production.

In view of this, how to simplify the design of the water-stop structure and reduce the cost to ensure the normal operation of the breathing tube is an urgent problem to be solved in the industry.

Utility model content

An object of the present invention is to provide a water-stop structure for a breathing tube, which can achieve the effect of closing or opening the opening of the breathing tube through the cross action of the buoyancy of the liquid and the weight of the water-stop structure.

Another object of the present utility model is to provide a water-stop structure for a breathing tube. The components of this water-stop structure can be integrally formed, and can also be assembled or joined together. Production costs can be reduced.

Another purpose of this utility model is to provide a water-stop structure for breathing tubes. This novel water-stop structure design does not need other driving forces, and the cover itself can directly drive the joint surface to automatically close, and the action is more reliable. , improve the effect of existing breathing tube water stop.

In order to achieve the above purpose, the waterproof structure of the breathing tube disclosed in the utility model includes a hollow body and a cover. The hollow body itself has two opposite open ends, and the cover is pivotally arranged on the hollow body adjacent to the first open end, and can be pivoted to a position therefrom. When the cover is not immersed in liquid, the two open ends can be in a fluid connection through its own gravity; and when a part of the cover is immersed in liquid, the buoyancy provided by the liquid to the cover can make the cover The joint surface of the first open end is sealed to prevent liquid from entering.

The utility model has the advantages that it can simplify the design of the water-stop structure, reduce the cost, and ensure the normal operation of the breathing tube.

In order to make the above-mentioned purpose, technical features, and advantages of the present invention more comprehensible, preferred embodiments are described below in detail with the accompanying drawings.

Description of drawings

FIG. 1A is a three-dimensional schematic diagram of constituent elements of the background technology;

FIG. 1B is a three-dimensional schematic diagram of the background technology;

Figure 2A is a schematic cross-sectional view of the utility model cover not immersed in liquid;

Fig. 2B is a three-dimensional schematic diagram of the utility model cover not immersed in liquid;

Fig. 3A is a schematic cross-sectional view of the cover immersed in the liquid of the utility model;

Fig. 3B is a three-dimensional schematic diagram of the cover immersed in the liquid of the utility model; and

Fig. 4 is a schematic cross-sectional view of a cover immersed in liquid according to another embodiment of the present invention.

Description of main component symbols

10 Body 11 Fastener

12 fasteners 13 fasteners

14 Opening 20 Shell

30 Blocking device 31 Orientation movable rod

32 Cover body 33 Floating part

40 Water-stop structure 41 Hollow body

411 First open end 412 Second open end

50 cover 51 hub

52 joint surface 521 sealing element

53 Closed chamber 54 Vent

55 floats

Detailed ways

Please refer to FIG. 2A and FIG. 2B together, wherein FIG. 2B is a perspective view of a water-stopping structure 40 in a preferred embodiment of the present invention, and FIG. 2A is a schematic cross-sectional view of the water-stopping structure 40 in FIG. 2B . The water-stop structure 40 shown in the figure includes a hollow body 41 and a set of covers 50 . One of the characteristics of the water-stop structure is that it is integrally formed, or assembled or joined in the configuration of most components, which not only eliminates the disadvantage of complex assembly in the background art, but also reduces production costs.

The hollow body 41 has a first open end 411 and a second open end 412 opposite to the first open end 411. The first open end 411 is arranged on the upper end of the hollow body 41 to allow the hollow body 41 to be fluidly connected to the outside world. Environment; the second open end 412 is provided at the lower end of the hollow body 41 for connecting to the breathing tube used by the user.

The cover 50 includes a pivot 51 , a joint surface 52 , a closed chamber 53 and a ventilation hole 54 . In detail, the pivot 51 of the cover 50 is disposed adjacent to the first opening 411 of the hollow body 41 , so that the cover 50 can rotate around the pivot 51 . In addition, the shape of the joint surface 52 is adapted to match the contour of the first open end 411 so that it can seal the first open end 411 of the hollow body 41 to prevent liquid from entering the breathing tube through the first open end 411 . In this embodiment, the joint surface 52 is a part of the cover 50 itself; or, in other embodiments, the joint surface 52 is suitable to be defined on the side wall of the closed chamber 53 at the same time, and faces the first open end 411 , those skilled in the art can change the position of the joint surface 52 , and there is no limitation here.

On the other hand, the overall density of the closed chamber 53 is lower than the density of the liquid, so that when the closed chamber 53 is immersed in the liquid, the buoyancy generated by the liquid can be obtained, and then the sleeve cover 50 is rotated around the pivot 51 to be tightly attached to the hollow body 41 The first open end 411 of. When the cover 50 is not immersed in the liquid, or is only partially immersed in the liquid so that the cover 50 has not yet sealed the first open end 411 of the hollow body 41, the outside air outside the first open end 411 can pass through the vent hole 54 enters the hollow body 41 and communicates through the second open end 412 into the breathing tube.

Please refer to FIG. 2A and FIG. 3A together, which illustrate the operation principle of the water-stop structure 40 . When the cover 50 in the water-stop structure 40 of the present invention pivots between a first position and a second position, a part of it can move along the outline of the hollow body 41, so that the water-stop structure 40 can operate smoothly. Function. In detail, FIG. 2A shows that when the cover 50 of the water-stop structure 40 is not immersed in the liquid, the cover 50 can stay at the first position by its own gravity, so that the outside air can pass through the first open end 411, and The second open end 412 is in fluid communication with the breathing tube so that the diver can breathe air. When a part of the closed chamber 53 of the cover 50 is immersed in the liquid, the closed chamber 53 can use the buoyancy formed by the liquid, so that the cover 50 can pivot on the pivot 51 and stay in the second position. The sleeve cover 50 can just make the joint surface 52 seal to the first opening end 411, and achieve the effect of water-stopping smoothly, as shown in FIG. 3A.

Taking the water-stop structure 40 immersed in seawater as an example, when the cover 50 of the water-stop structure 40 is immersed in seawater, since the density of seawater is substantially between 1.02 and 1.07 grams/cubic centimeter, the utility model closes the chamber 53 The overall density is still lower than that of seawater, so the closed chamber 53 can float on the seawater by buoyancy to make the cover 50 rotate, and then the joint surface 52 can be sealed to the first open end 411, as shown in Figure 3B. Conversely, when the cover 50 of the water-stop structure 40 of the present invention leaves the sea level, the closed chamber 53 will drive the joint surface 52 away from the first opening end 411 due to its own weight, and the outside air will enter through the vent hole 54 at this time. The two open ends 411, 412 of the hollow body 41 of the water-stop structure 40 form a gas communication between the outside air and the breathing tube, so that the diver can breathe air.

In another preferred embodiment of the present invention, the cover 50 of the water-stop structure 40 has a floating body 55 , as shown in FIG. 4 . In this embodiment, the floating body 55 can be made of a material with a density of less than 1.02 grams/cubic centimeter. For example, the material of the floating body 55 can be selected from the following groups: wood, foam and combinations thereof, known in the art Usually knowledgeable people can choose other low-density materials to replace, and there is no limitation here. In addition, whether the structure of the floating body 55 in this embodiment is closed or not is not limited, it depends on its design. In this embodiment, the joint surface 52 can be a part of the sleeve cover 50 itself, or the joint surface 52 can be defined on a side wall of the floating body 55 at the same time, and faces the first opening end.

When a part of the floating body 55 is submerged in the liquid, buoyancy can be formed to make the cover 50 rotate and be sealed to the first opening end 411 to achieve a water-stopping effect. And when the floating body 55 leaves the liquid, the joint surface 52 can be driven away from the first opening end 411 by its own weight, so that the outside air can enter the hollow body 41 of the water-stop structure 40 .

In addition, in a preferred embodiment of the present utility model, the waterproof structure 40 of the present utility model can further be provided with a sealing element 521 on the joint surface 52, as shown in FIG. 2A , so that the first opening end 411 and the joint surface 52 can indeed seal tightly. However, this is only one embodiment. According to the understanding of those skilled in the art, the sealing element 521 can also be arranged at the first opening end 411, for example, a ring (not shown) is arranged so that the joint surface 52 can be Tightly seal with the first open end 411 .

Claims (8)

1. the water sealing structure of a breathing pipe is used to snorkel at liquid, it is characterized in that, this water sealing structure comprises: hollow body, and it has first open end and second open end relative with this first open end; And upper shield, be hubbed at this hollow body and be adjacent to this first open end, and can be switched to the second place from primary importance; Wherein, this upper shield has face of joint, and this upper shield can stay in this primary importance by the gravity of himself, make outside air be fluid with this breathing pipe and be communicated with via this first open end, this second open end, and by this liquid to buoyancy that this upper shield provided, this upper shield can stay in this second place, and makes this face of joint involution in this first open end.

2. water sealing structure as claimed in claim 1 is characterized in that this upper shield has closed chamber, can form this buoyancy when the part of this closed chamber is immersed in this liquid.

3. water sealing structure as claimed in claim 2 is characterized in that this face of joint defines the sidewall of this chamber, and towards this first open end.

4. water sealing structure as claimed in claim 1 is characterized in that this upper shield has buoyancy aid, can form this buoyancy when the part of this buoyancy aid is immersed in this liquid.

5. water sealing structure as claimed in claim 4 is characterized in that the density of this buoyancy aid is less than 1.02 gram/cm3s.

6. water sealing structure as claimed in claim 4 is characterized in that this face of joint defines the sidewall of this buoyancy aid, and towards this first open end.

7. water sealing structure as claimed in claim 1 is characterized in that this upper shield more comprises at least one air extractor vent, and when this face of joint left this first open end, by this air extractor vent, this first open end and second open end constituted gas communication.

8. water sealing structure as claimed in claim 1 is characterized in that, more comprises packing element, is located at least on one of them of this first open end and this face of joint.

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