Sealing structure suitable for reversing valve rod of flow meter

Abstract

The utility model discloses a flow meter reversing valve rod sealing structure which comprises a flow meter body, a sealing assembly and a connecting assembly are arranged on the flow meter body, and the sealing assembly comprises a reversing valve rod and a U-shaped groove. The reversing valve is simple in structure and reasonable in design, the sealing assembly and the connecting assembly are arranged, the sealing assembly comprises the reversing valve rod and the U-shaped groove, the connecting assembly comprises the wall connecting plug and the airflow switch, the wall connecting plug can be matched with equipment of various different specifications according to requirements, and the airflow switch can control and adjust the gas flow. The U-shaped groove arranged on the flowmeter main body is matched with the O-shaped ring on the reversing valve rod, the reversing valve rod replaces an original through hole through conversion of oxygen uptake and atomization after the reversing valve rod is matched with the flowmeter main body to move, air tightness is improved, and the service life of the O-shaped ring of the reversing valve rod is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and particularly relates to a sealing structure suitable for a flow meter reversing valve rod. Background Art

[0002] An oxygen inhalation flow meter is one of the commonly used oxygen delivery instruments in modern medical use. When inhaling oxygen, humidifying liquid is required, and the flow meter is used in cooperation with a humidifying bottle for containing the humidifying liquid. When atomizing, it can be switched to the gas atomization state.

[0003] Deficiencies of the prior art:

[0004] At present, a utility model of CN207785613U discloses an adjustable oxygen inhalation and oxygen atomization conversion integrated oxygen flow meter, including an air flow conversion switch. Oxygen inhalation switch buttons and atomization switch buttons are respectively arranged at both ends of the air flow conversion switch. A straight through hole and a U-shaped bent hole are arranged side by side in the middle of the air flow conversion switch. The operation is to rotate and pull the air flow conversion switch to align the straight through hole and the U-shaped bent hole with the corresponding flow channels to realize the switching between the flow channels. The air flow conversion switch is arranged inside the oxygen flow meter, and the air flow conversion switch transmits the force applied at both ends. It is made of hard materials, and the tightness between the adjacent flow channels blocked by the air flow conversion switch is low, and oxygen or mist can penetrate through the gap. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealing structure suitable for a flow meter reversing valve rod to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sealing structure suitable for a flow meter reversing valve rod, including a flow meter main body, a sealing component and a connection component are arranged on the flow meter main body. The sealing component includes:

[0007] A reversing valve rod, the reversing valve rod penetrates and is connected to the flow meter main body, and an O-ring is installed on the reversing valve rod;

[0008] A U-shaped groove, the U-shaped groove is arranged inside the flow meter main body.

[0009] Preferably, the O-ring installed on the reversing valve rod matches the U-shaped groove.

[0010] Preferably, the connection component includes a wall socket joint and an air flow switch. The wall socket joint penetrates and is connected to the flow meter main body and is perpendicular to the installation direction of the reversing valve rod. The air flow switch is connected to the wall socket joint and installed on the flow meter main body.

[0011] Preferably, the flow meter main body is connected with a flow meter scale component, and the flow range of the flow meter scale component is 1 L / min to 10 L / min.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For a sealing structure applicable to a flow meter reversing valve rod, by providing a sealing component and a connecting component, the sealing component includes a reversing valve rod and a U-shaped groove, and the connecting component includes a wall socket joint and an air flow switch. The wall socket joint can be matched with various different specifications of equipment according to requirements, and the air flow switch can control and adjust the size of the gas flow. The U-shaped groove provided on the flow meter main body is paired with the O-ring on the reversing valve rod. After the reversing valve rod is paired with the flow meter main body and moves, the conversion between oxygen inhalation and atomization is achieved, replacing the original through hole, improving the airtightness, and effectively prolonging the service life of the O-ring of the reversing valve rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of a partial structure of the present utility model;

[0016] In the figure: 110, flow meter main body; 120, reversing valve rod; 130, U-shaped groove; 140, wall socket joint; 150, air flow switch; 160, flow meter scale component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0019] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, the meaning of "several" is two or more unless otherwise clearly and specifically defined.

[0021] Embodiment

[0022] Please refer to Figure 1-2 As shown, a technical solution for the sealing structure of a flow meter reversing valve rod provided by this utility model includes a flow meter main body 110. A sealing component and a connection component are provided on the flow meter main body 110. The sealing component includes a reversing valve rod 120 and a U-shaped groove 130. The reversing valve rod 120 is connected through the flow meter main body 110. An O-ring is installed on the reversing valve rod 120. The U-shaped groove 130 is arranged inside the flow meter main body 110. The reversing valve rod 120 can complete the transfer of oxygen inhalation and atomization through paired movement with the flow meter main body 110. The O-ring installed on the reversing valve rod 120 matches the U-shaped groove 130, replacing the original through hole, ensuring airtightness and effectively increasing the service life of the O-ring on the reversing valve rod 120; the connection component includes a wall socket connector 140 and an air flow switch 150. The wall socket connector 140 is connected through the flow meter main body 110 and is installed perpendicular to the installation direction of the reversing valve rod 120. The wall socket connector 140 can be connected to various different specifications of equipment according to hospital equipment. The air flow switch 150 is connected to the wall socket connector 140 and installed on the flow meter main body 110. The air flow switch 150 can adjust the size of the gas flow. The flow meter main body 110 is connected with a flow meter scale component 160, and the flow range of the flow meter scale component 160 is 1 L / min to 10 L / min.

[0023] The working principle of this utility model is as follows:

[0024] When a sealing structure of a flow meter reversing valve stem according to this embodiment is in use, a sealing component and a connecting component are provided. The sealing component includes a reversing valve stem 120 and a U-shaped groove 130, and the connecting component includes a wall socket joint 140 and an air flow switch 150. The wall socket joint 140 can match various different specifications of devices according to requirements, and the air flow switch 150 can control and adjust the size of the gas flow. The U-shaped groove 130 provided on the flow meter main body 110 is paired with the O-ring on the reversing valve stem 120. After the reversing valve stem 120 is paired with the flow meter main body 110 and moves, the conversion between oxygen inhalation and atomization is completed, replacing the original through hole, improving airtightness, and effectively prolonging the service life of the O-ring of the reversing valve stem 120.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure suitable for a flow meter reversing valve stem, comprising a flow meter main body (110), characterized in that: A sealing component and a connection component are provided on the flow meter main body (110). The sealing component includes: A reversing valve rod (120) which penetrates and is connected to the flow meter main body (110), and an O-ring is installed on the reversing valve rod (120); A U-shaped groove (130) which is arranged inside the flow meter main body (110).

2. The sealing structure of the flow meter reversing valve stem according to claim 1 is characterized in that: The O-ring installed on the reversing valve rod (120) is matched with the U-shaped groove (130).

3. A sealing structure for the flow meter reversing valve stem according to claim 1, characterized in that: The connection component includes a wall socket connector (140) and an air flow switch (150). The wall socket connector (140) penetrates and is connected to the flow meter main body (110) and is installed perpendicular to the installation direction of the reversing valve rod (120). The air flow switch (150) is connected to the wall socket connector (140) and installed on the flow meter main body (110).

4. A sealing structure for the reversing valve stem of a flow meter according to claim 1, characterized in that: The flow meter main body (110) is connected with a flow meter scale component (160), and the flow range of the flow meter scale component (160) is 1 L / min to 10 L / min.

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