Manual adjustment type oxygen delivery valve

Abstract

The utility model belongs to the technical field of oxygen supply valves, and particularly relates to a manual adjustment type oxygen delivery valve which comprises a valve seat, and a first air inlet connector, a second air inlet connector and an air outlet connector are arranged on the valve seat. The first air inlet connector and the second air inlet connector can communicate with the air outlet connector through an air supplementing channel or / and a constant flow channel in the valve seat. The second air inlet connector is connected with a one-way valve connector; a gulp valve element is arranged in the gulp channel, and a constant flow valve element is arranged in the constant flow channel. According to the scheme, two parallel oxygen supply channels, namely the air supply channel and the constant flow channel, are arranged in the oxygen delivery valve, so that the oxygen supply flow of the constant flow channel can be ensured under the condition that the air supply channel is completely closed, and the safety of diving activities is ensured. The oxygen delivery valve is provided with two air inlet connectors and one air outlet connector, so that switching of two oxygen sources is facilitated, and oxygen supply during underwater diving activities can be guaranteed more effectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen supply valves, and in particular relates to a manually adjustable oxygen delivery valve. Background Art

[0002] When diving equipment is in use, it is often necessary to configure an oxygen delivery valve to ensure oxygen supply. However, the minimum shutoff amount of the existing oxygen delivery valve is zero. In an underwater emergency, it is easy to be affected by human operation and cause the oxygen to be completely shut off, causing danger during diving. In addition, when the oxygen is exhausted, if a third-party oxygen source is to be delivered, the original oxygen passage is often required to be removed. If it is not replaced in time, it will also affect the danger of underwater diving activities.

[0003] Therefore, it is necessary to design an oxygen delivery valve that can ensure that the minimum oxygen amount is not zero and is convenient for other oxygen sources to access. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the present invention provides a manually adjustable oxygen delivery valve.

[0005] The technical solution adopted by the utility model is:

[0006] A manually adjustable oxygen delivery valve comprises a valve seat, on which a first air inlet interface, a second air inlet interface and an air outlet interface are arranged; an air supply channel and a constant flow channel are arranged inside the valve seat; the first air inlet interface and the second air inlet interface can both be connected to the air outlet interface through the air supply channel and / or the constant flow channel; a one-way valve joint is connected at the second air inlet interface; an air supply valve core for air flow control is arranged in the air supply channel, and a constant flow valve core for air flow control is arranged in the constant flow channel.

[0007] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the constant flow valve core is connected to a constant flow knob, the free end of the constant flow knob extends to the side wall of the valve seat and is used to control the tightening or loosening of the constant flow valve core.

[0008] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: a protective cover is arranged on the valve seat; the constant flow knob is covered by the protective cover.

[0009] As an alternative or supplement to the above manually regulated oxygen delivery valve: a protective cap is threadedly connected to the valve seat.

[0010] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the constant flow valve core is threadedly matched with the side wall of the constant flow channel; when the constant flow valve core is tightened or loosened, the gap between the constant flow valve core and the side wall of the constant flow channel is reduced or increased to achieve gas flow control in the constant flow channel.

[0011] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the air supply valve core is connected to an air supply knob, the free end of which extends out of the side wall of the valve seat and is used to control the tightening or loosening of the air supply valve core.

[0012] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the air supply valve core is threadedly matched with the side wall of the air supply channel; when the air supply valve core is tightened or loosened, the gap between the air supply valve core and the side wall of the air supply channel is reduced or increased to achieve air flow control in the air supply channel.

[0013] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the one-way valve connector includes a one-way valve seat, a valve head, a valve core and a compression spring; the external thread of the one-way valve seat is sealingly connected to the second air inlet interface, one end of the valve head is sealingly connected to the internal thread of the one-way valve seat, a one-way channel is arranged in the valve head, the one-way channel can be connected to the second air inlet interface, the valve core is against the channel opening of the one-way channel, and the two ends of the compression spring are respectively against the one-way valve seat and the valve core; when the valve core is in an open state, the one-way channel is connected to the air replenishment channel and the constant flow channel.

[0014] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the valve seat is in the shape of a hexahedron.

[0015] As an alternative or supplement to the above-mentioned manually adjustable oxygen delivery valve: the first air inlet interface and the first air inlet interface are both provided with internal threads.

[0016] The beneficial effects of the utility model are:

[0017] 1. The oxygen delivery valve in this scheme is provided with two parallel oxygen supply channels, namely, an air supply channel and a constant flow channel. When the air supply channel is completely shut off, the oxygen supply gas flow of the constant flow channel can be guaranteed, thereby ensuring the safety of diving activities.

[0018] 2. The oxygen delivery valve in this solution is equipped with two air inlet interfaces and one air outlet interface, which facilitates the switching of two oxygen sources and can more effectively ensure the oxygen supply during underwater diving activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the structure of the manually adjustable oxygen delivery valve in this scheme;

[0021] Figure 2 It is a cross-sectional structural diagram of the manually adjustable oxygen delivery valve in this scheme;

[0022] Figure 3 It is a cross-sectional structural diagram of a one-way valve joint.

[0023] In the figure: 1-valve seat; 11-hanging ear; 12-air outlet interface; 13-first air inlet interface; 2-air supply knob; 21-air supply valve core; 3-one-way valve connector; 31-one-way valve seat; 32-valve head; 33-valve core; 34-compression spring; 4-protective cover; 5-constant flow knob; 51-constant flow valve core. DETAILED DESCRIPTION

[0024] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only some of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of this solution.

[0025] Example 1

[0026] like Figures 1 to 3 As shown, this embodiment designs a manually adjustable oxygen delivery valve, including a valve seat 1, a one-way valve connector 3, a constant flow valve core 51 and an air supply valve core 21 and other structures.

[0027] The valve seat 1 can adopt a polyhedral structure, such as a hexahedral structure. A hanging ear 11 is arranged on the outer side of the valve seat 1, and the hanging ear 11 can facilitate the installation of the valve seat 1.

[0028] A first air inlet interface 13, a second air inlet interface and an air outlet interface 12 are arranged on the valve seat 1. The first air inlet interface 13, the second air inlet interface and the air outlet interface 12 all have internal threads, so as to facilitate connection with external pipelines.

[0029] An air supply channel and a constant flow channel are provided inside the valve seat 1, and the first air inlet interface 13 and the second air inlet interface can be connected to the air outlet interface 12 through the air supply channel and / or the constant flow channel, that is, the oxygen entering from the first air inlet interface 13 can flow to the air outlet interface 12 through either the air supply channel or the constant flow channel, and the oxygen entering from the second air inlet interface can also flow to the air outlet interface 12 through either the air supply channel or the constant flow channel.

[0030] The one-way valve connector 3 is connected to the second air inlet interface, and oxygen can enter the second air inlet interface through the one-way valve connector 3 , and the one-way valve connector 3 can also prevent oxygen from flowing out through the one-way valve connector 3 .

[0031] The air supply valve core 21 is arranged in the air supply channel, and the air supply valve core 21 is used for controlling the air flow rate in the air supply channel. The air supply valve core 21 is connected to the air supply knob 2, and the free end of the air supply knob 2 extends to the outside of the side wall of the valve seat 1, and is used to control the tightening or loosening of the air supply valve core 21. When the air supply knob 2 is rotated, the movement of the air supply valve core 21 in the air supply channel can be controlled, so as to realize the oxygen amount control in the air supply channel. The air supply valve core 21 can be matched with the side wall thread of the air supply channel; when the air supply valve core 21 is tightened or loosened, the gap between the air supply valve core 21 and the side wall of the air supply channel is reduced or increased, so as to realize the air flow rate control in the air supply channel.

[0032] A constant flow valve core 51 is arranged in the constant flow channel, and the constant flow valve core 51 is used for controlling the amount of gas in the constant flow channel. The constant flow valve core 51 is connected to a constant flow knob 5, the free end of which extends to the side wall of the valve seat 1, and is used to control the tightening or loosening of the constant flow valve core 51. When the constant flow knob 5 is rotated, the movement of the constant flow valve core 51 in the constant flow channel can be controlled, thereby realizing the control of the amount of oxygen in the constant flow channel. The constant flow valve core 51 can be threadedly matched with the side wall of the constant flow channel; when the constant flow valve core 51 is tightened or loosened, the gap between the constant flow valve core 51 and the side wall of the constant flow channel is reduced or increased to realize the amount of gas in the constant flow channel.

[0033] In order to prevent the constant flow valve core 51 from remaining motionless when not necessary, a protective cover 4 may be provided on the valve seat 1; the constant flow knob 5 is shielded by the protective cover 4. The protective cover 4 is threadedly connected to the valve seat 1.

[0034] The one-way valve connector 3 includes a one-way valve seat 31, a valve head 32, a valve core 33, a compression spring 34 and other components. The one-way valve seat 31 is tubular, and the outer wall of the one-way valve seat 31 is provided with an external thread, and the inner wall of the one-way valve seat 31 is provided with an internal thread; the external thread of the one-way valve seat 31 can be connected with the internal thread of the second air inlet interface, and the one-way valve seat 31 and the valve seat 1 are sealed and connected. One end of the valve head 32 is tubular and has an external thread. The external thread of the valve head 32 can cooperate with the internal thread of the one-way valve seat 31 to achieve a sealed connection between the valve head 32 and the one-way valve seat 31. A one-way channel is provided in the valve head 32, and the one-way channel can be connected to the second air inlet interface. The valve core 33 abuts against the channel opening of the one-way channel, and the two ends of the compression spring 34 abut against the one-way valve seat 31 and the valve core 33 respectively; when the valve core 33 is in an open state, the one-way channel is connected to the air supply channel and the constant flow channel.

[0035] The oxygen delivery valve in this embodiment is provided with two oxygen supply channels, namely, a gas supply channel and a constant flow channel, which are parallel to each other. When the gas supply channel is completely closed, the oxygen supply volume of the constant flow channel can be guaranteed, thereby ensuring the safety of diving activities. The oxygen delivery valve is provided with two air inlet interfaces and one air outlet interface 12, thereby facilitating the switching of the two oxygen sources and more effectively ensuring the oxygen supply during underwater diving activities.

[0036] When the manually adjustable oxygen delivery valve of this embodiment is in use, under normal circumstances, the oxygen cylinder is connected to the first air inlet interface 13 through a pipeline, and the oxygen mask is connected to the air outlet interface 12 through a pipeline. After the oxygen enters the valve seat 1, it can flow to the air outlet interface 12 through the air supply channel and the constant flow channel. When the air supply knob 2 is rotated, the tightness of the air supply can be changed, thereby changing the air flow in the air supply channel. That is, when the air supply channel is bent and closed due to misoperation, the constant flow channel can also ensure a certain amount of oxygen delivery. The oxygen flow in the constant flow channel is adjusted by the constant flow valve core 51.

[0037] When the oxygen cylinder connected to the first air inlet interface 13 has a problem of insufficient oxygen, another oxygen cylinder can be connected to the one-way valve joint 3 through a pipe. The ejector pin at the head of the pipe can push open the one-way valve core 33, thereby ensuring that the oxygen in the other oxygen cylinder can flow to the air outlet interface 12 through the second air inlet interface.

[0038] The above embodiments are merely examples for the purpose of clarifying the description, and are not intended to limit the implementation methods; it is not necessary and impossible to list all implementation methods exhaustively. However, obvious changes or modifications derived therefrom are still within the scope of protection of the present technology.

Claims

1. A manually adjustable oxygen delivery valve, characterized in that: The invention comprises a valve seat (1), on which a first air inlet interface (13), a second air inlet interface and an air outlet interface (12) are arranged; an air supply channel and a constant flow channel are arranged inside the valve seat (1); the first air inlet interface (13) and the second air inlet interface can both be connected to the air outlet interface (12) through the air supply channel and / or the constant flow channel; a one-way valve joint (3) is connected to the second air inlet interface; an air supply valve core (21) for air flow control is arranged in the air supply channel, and a constant flow valve core (51) for air flow control is arranged in the constant flow channel.

2. The manually adjustable oxygen delivery valve according to claim 1, characterized in that: The constant flow valve core (51) is connected to a constant flow knob (5), the free end of the constant flow knob (5) extends to the side wall of the valve seat (1), and is used to control the tightening or loosening of the constant flow valve core (51).

3. The manually adjustable oxygen delivery valve according to claim 2, characterized in that: A protective cover (4) is provided on the valve seat (1); and a constant flow knob (5) is shielded by the protective cover (4).

4. The manually adjustable oxygen delivery valve according to claim 3, characterized in that: The protective cover (4) is threadedly connected to the valve seat (1).

5. The manually adjustable oxygen delivery valve according to claim 2, characterized in that: The constant flow valve core (51) is threadedly matched with the side wall of the constant flow channel; when the constant flow valve core (51) is tightened or loosened, the gap between the constant flow valve core (51) and the side wall of the constant flow channel is reduced or increased, so as to realize the air flow control in the constant flow channel.

6. The manually adjustable oxygen delivery valve according to claim 1, characterized in that: The air supply valve core (21) is connected to an air supply knob (2), the free end of the air supply knob (2) extends outside the side wall of the valve seat (1), and is used to control the tightening or loosening of the air supply valve core (21).

7. The manually adjustable oxygen delivery valve according to claim 6, characterized in that: The air supply valve core (21) is threadedly matched with the side wall of the air supply channel; when the air supply valve core (21) is tightened or loosened, the gap between the air supply valve core (21) and the side wall of the air supply channel is reduced or increased, so as to realize air flow control in the air supply channel.

8. The manually adjustable oxygen delivery valve according to any one of claims 1 to 7, characterized in that: The one-way valve connector (3) comprises a one-way valve seat (31), a valve head (32), a valve core (33) and a compression spring (34); the external thread of the one-way valve seat (31) is sealedly connected to the second air inlet interface, one end of the valve head (32) is sealedly connected to the internal thread of the one-way valve seat (31), a one-way channel is arranged in the valve head (32), the one-way channel can be connected to the second air inlet interface, the valve core (33) abuts against the channel opening of the one-way channel, and the two ends of the compression spring (34) abut against the one-way valve seat (31) and the valve core (33) respectively; when the valve core (33) is in an open state, the one-way channel is connected to the air supply channel and the constant flow channel.

9. The manually adjustable oxygen delivery valve according to claim 1, characterized in that: The valve seat (1) is in the shape of a hexahedron.

10. The manually adjustable oxygen delivery valve according to claim 1, characterized in that: The first air inlet interface (13) and the first air inlet interface (13) are both provided with internal threads.

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