Medium-pressure hose for diving

Abstract

The medium-pressure hose for diving comprises a valve, a first medium-pressure hose body, a second medium-pressure hose body and connector assemblies, the valve is provided with two connecting holes located in the two side ends respectively, internal threads are arranged on the inner walls of the two connecting holes, the connector assemblies are arranged at the two ends of the first medium-pressure hose body and one end of the second medium-pressure hose body respectively, and the connector assemblies are connected with the first medium-pressure hose body and the second medium-pressure hose body. One end of the first medium-pressure hose is connected with the first-stage pressure reducer through the connector assembly, the other end of the first medium-pressure hose is connected with one end of the valve through the connector assembly, and one end of the second medium-pressure hose is connected with the other end of the valve through the connector assembly. When the diving device is used and a certain diving device cannot be closed due to air leakage, a diver can control the on-off of air through the valves arranged in the first medium-pressure hose and the second medium-pressure hose, so that an air leakage fault point is isolated, and particularly, normal working air supply of a main respirator for breathing of the diver is ensured; and therefore, the safety of the whole diving system is indirectly enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to diving appliance technical field, concretely relates to a diving medium pressure hose. BACKGROUND

[0002] Diving medium pressure hose is the key component of diving equipment, responsible for connecting primary pressure reducer and secondary pressure reducer (breather), its main function is to transmit the high pressure cylinder gas after the pressure reduction of primary pressure reducer to breather, so that the diver can obtain oxygen for normal breathing, therefore diving medium pressure hose plays a vital role in the diving process. Among them, primary pressure reducer is usually equipped with multiple medium pressure output ports, in addition to connecting the main breather (secondary pressure reducer) for the diver to breathe, it can also access multiple medium pressure hoses according to demand to supply gas to other diving equipment, such as buoyancy vest, dry suit, and rescue breather.

[0003] However, since all the medium pressure output ports of primary pressure reducer are interconnected structure, therefore the diving equipment connected at the rear end of medium pressure hose must be equipped with valve, and cannot be damaged, otherwise once the single medium pressure access equipment leaks and cannot be closed, it will cause the remaining medium pressure equipment to lose pressure at the same time, especially the main breather for the diver to breathe will not supply gas normally, leading to suffocation. And the diving medium pressure hose on the market does not have a valve structure that can turn on and off the gas, so it cannot independently control the on and off of a single medium pressure hose, and can only control the on and off of the total gas source through the cylinder valve, therefore the prior art has limitations. UTILITY MODEL CONTENTS

[0004] The utility model is carried out in order to solve the above problems, aims at providing a diving medium pressure hose.

[0005] The utility model provides a diving medium pressure hose, one end is connected with primary pressure reducer, is used for conveying gas, has such characteristics, include: valve, first medium pressure hose, second medium pressure hose and joint assembly,

[0006] The valve has two connecting holes on both sides, the inner wall of the two connecting holes is provided with internal thread, the two ends of the first medium pressure hose and one end of the second medium pressure hose are provided with joint assembly, one end of the first medium pressure hose is connected with primary pressure reducer through joint assembly, the other end is connected with one end of the valve through joint assembly, one end of the second medium pressure hose is connected with the other end of the valve through joint assembly;

[0007] The connector assembly includes a connector, an O-ring, and a clamp. The connector is cross-shaped and has a through hole inside along the axial direction. The two sides of the connector are small-diameter sections and the middle is a large-diameter section. The outer diameter of the small-diameter section on one side of the connector is equal to the diameter of the connecting hole, and the outer wall of the small-diameter section is provided with an external thread that meshes with the internal thread. The outer diameter of the small-diameter section on the other side of the connector is equal to the inner diameter of the first medium-pressure hose and the second medium-pressure hose. The O-ring is fitted on the small-diameter section on one side of the connector and fits against the end wall of the large-diameter section. The clamp is located on the small-diameter section on the other side of the connector and is used to fasten the connector to the first medium-pressure hose and the second medium-pressure hose.

[0008] The medium-pressure hose for diving provided by this utility model also has the following features: both the first medium-pressure hose and the second medium-pressure hose are pressure-resistant rubber hoses.

[0009] The medium-pressure hose for diving provided by this utility model also has the following feature: the inner wall of the small-diameter section on the other side of the connector is provided with an annular chamfer facing the inside of the connector.

[0010] The submersible medium-pressure hose provided by this utility model also has the following feature: the valve is a ball valve.

[0011] Functions and effects of utility models

[0012] According to the medium-pressure hose for diving involved in this utility model, when a diving equipment encounters a leak and cannot be shut off, the diver can control the gas flow through valves located in the first and second medium-pressure hoses, thereby isolating the leak point. This ensures the normal operation of the main breathing apparatus for the diver, indirectly enhancing the safety of the entire diving system. Furthermore, because the medium-pressure hose of this utility model has a built-in valve, the connected diving equipment does not need to be equipped with valves, thus enhancing the adaptability of this utility model to diving equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Valve; 2. First medium-pressure hose; 3. Second medium-pressure hose; 4. Connector assembly; 41. Connector; 42. O-ring; 43. Clamp. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0017] Example

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] like Figure 1 As shown, this embodiment provides a medium-pressure hose for diving, including: a valve 1, a first medium-pressure hose 2, a second medium-pressure hose 3, and a connector assembly 4.

[0020] like Figure 1 As shown, valve 1 has two connection holes located on its two ends, and the inner walls of both connection holes are provided with internal threads. Valve 1 is a valve capable of rapid opening and closing and precise flow regulation. In this embodiment, valve 1 is preferably a ball valve. Therefore, valve 1 also has a control handle that controls the rotation of the valve core to open and close the valve, thereby ensuring sufficient airflow within a relatively small size similar to the first medium-pressure hose 2 and the second medium-pressure hose 3, and enabling rapid switching on and off of the gas supply with high reliability.

[0021] like Figure 1 As shown, both ends of the first medium-pressure hose 2 and one end of the second medium-pressure hose 3 are provided with connector assemblies 4. One end of the first medium-pressure hose 2 is connected to the first-stage pressure reducer through the connector assembly 4, and the other end is connected to one end of the valve 1 through the connector assembly 4. One end of the second medium-pressure hose 3 is connected to the other end of the valve 1 through the connector assembly 4.

[0022] In this embodiment, both the first medium-pressure hose 2 and the second medium-pressure hose 3 are preferably pressure-resistant rubber hoses.

[0023] In this embodiment, a connector assembly 4 may also be provided at the other end of the second medium-pressure hose 3 as needed. For example, when the other end of the second medium-pressure hose 3 needs to be connected to diving equipment, a connector assembly 4 can be provided at its other end; when the second medium-pressure hose 3 is used as an auxiliary air supply hose, it is not necessary to provide a connector assembly 4 at its other end, so that the other end of the second medium-pressure hose 3 can be easily inserted into the diver's helmet in emergency use to achieve emergency air supply.

[0024] like Figure 1 As shown, the connector assembly 4 includes a connector 41, an O-ring 42, and a clamp 43. The connector 41 is a cross-shaped shaft with a through hole inside along the axial direction. The two sides of the connector 41 are small-diameter sections and the middle is a large-diameter section. The outer diameter of the small-diameter section on one side of the connector 41 is equal to the diameter of the connecting hole, and the outer wall of the small-diameter section is provided with an external thread that meshes with the internal thread. The outer diameter of the small-diameter section on the other side of the connector 41 is equal to the inner diameter of the first medium-pressure hose 2 and the second medium-pressure hose 3. The O-ring 42 is fitted on the small-diameter section on one side of the connector 41 and fits against the end wall of the large-diameter section. The clamp 43 is provided on the small-diameter section on the other side of the connector 41 and is used to fasten the connector 41 to the first medium-pressure hose 2 and the second medium-pressure hose 3.

[0025] In this embodiment, the inner wall of the small-diameter section on the other side of the connector 41 is provided with an annular chamfer facing the inside of the connector 41.

[0026] When using the diving medium-pressure hose of this utility model, the connector assembly 4 first needs to be fixed to the first medium-pressure hose 2 and the second medium-pressure hose 3. Specifically, first, a clamp 43 is placed on the first medium-pressure hose 2, then the small-diameter section of the other side of a connector 41 is inserted into one end of the first medium-pressure hose 2, and finally, the clamp 43 on the first medium-pressure hose 2 is moved to the small-diameter section on the other side of the connector 41, and a closing machine is used to close the clamp 43 of the first medium-pressure hose 2, thereby fastening the connector 41 to one end of the first medium-pressure hose 2. Following the above steps, connectors 41 can be sequentially installed on the other end of the first medium-pressure hose 2 and one end of the second medium-pressure hose 3.

[0027] Next, the connector 41 at one end of the first medium-pressure hose 2 needs to be connected to the output port of the first-stage pressure reducer, and the connector 41 at the other end needs to be connected to the connection hole on one side of the valve 1. Similarly, the connector 41 at one end of the second medium-pressure hose 3 needs to be connected to the connection hole on the other side of the valve 1. Since the inner walls of the connection holes on both sides of the valve 1 are provided with internal threads, and the outer wall of the small-diameter section on one side of the connector 41 is provided with external threads that mesh with the internal threads, the first medium-pressure hose 2 and the second medium-pressure hose 3 can be connected to the valve 1 via the connector 41. Furthermore, because an O-ring 42 is provided on the small-diameter section on one side of the connector 41, tightening the small-diameter section of the connector 41 into the valve 1 provides a sealing and pressure-maintaining effect, thus completing the installation of this diving medium-pressure hose.

[0028] In addition, a connector 41 can be provided at the other end of the second medium-pressure hose 3 as needed. For example, when the other end of the second medium-pressure hose 3 needs to be connected to diving equipment, a connector 41 can be provided at its other end; when the second medium-pressure hose 3 is used as an auxiliary air supply hose, it is not necessary to provide a connector 41 at its other end, thus facilitating the insertion of the other end of the second medium-pressure hose 3 into the diver's helmet in emergency use, thereby achieving emergency air supply. Especially when a diver encounters an air supply failure while wearing a heavy diving helmet underwater, the structure of the heavy diving helmet makes it impossible to quickly remove it, meaning the effective air supply area is limited to inside the helmet, so it is also impossible to wear an externally provided respirator for breathing. When a diver encounters the above risks, the other end of the second medium-pressure hose 3 can be directly inserted into the helmet through the gap at the neck of the heavy diving helmet, and then the valve 1 can be opened to provide auxiliary air supply, allowing the diver to breathe normally. Therefore, this utility model can directly save the life of a diver in an emergency.

[0029] The role and effect of the embodiments

[0030] According to the medium-pressure hose for diving involved in this utility model, when a diving equipment encounters a leak and cannot be shut off, the diver can control the gas flow through valves located in the first and second medium-pressure hoses, thereby isolating the leak point. This ensures the normal operation of the main breathing apparatus for the diver, indirectly enhancing the safety of the entire diving system. Furthermore, because the medium-pressure hose of this utility model has a built-in valve, the connected diving equipment does not need to be equipped with valves, thus enhancing the adaptability of this utility model to diving equipment.

[0031] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

Claims

1. A medium-pressure hose for diving, one end of which is connected to a primary pressure regulator for conveying gas, characterized in that... include: Valves, first medium-pressure hose, second medium-pressure hose, and fitting assembly. The valve has two connection holes located on both sides, and the inner walls of both connection holes are provided with internal threads. The first medium-pressure hose is provided with the connector assembly at both ends and the second medium-pressure hose is provided with the connector assembly. One end of the first medium-pressure hose is connected to the first-stage pressure reducer through the connector assembly, and the other end is connected to one end of the valve through the connector assembly. One end of the second medium-pressure hose is connected to the other end of the valve through the connector assembly. The connector assembly includes a connector, an O-ring, and a clamp. The connector is cross-shaped and has a through hole inside along its axis. The connector has small-diameter sections on both sides and a large-diameter section in the middle. The outer diameter of the small-diameter section on one side of the connector is equal to the diameter of the connecting hole, and the outer wall of the small-diameter section has an external thread that engages with the internal thread. The outer diameter of the small-diameter section on the other side of the connector is equal to the inner diameter of the first medium-pressure hose and the second medium-pressure hose. The O-ring is fitted on the small-diameter section on one side of the connector and fits against the end wall of the large-diameter section. The clamp is located on the small-diameter section on the other side of the connector and is used to fasten the connector to the first medium-pressure hose and the second medium-pressure hose.

2. The diving medium-pressure hose according to claim 1, characterized in that: in, Both the first medium-pressure hose and the second medium-pressure hose are pressure-resistant rubber hoses.

3. The diving medium-pressure hose according to claim 1, characterized in that: in, The inner wall of the small-diameter section on the other side of the joint is provided with an annular chamfer facing the inside of the joint.

4. The diving medium-pressure hose according to claim 1, characterized in that: in, The valve is a ball valve.

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