Oxygen flowmeter

Abstract

The utility model discloses an oxygen flowmeter which comprises a pipeline, a flowmeter and a control valve, forty limiting holes are formed in the side face, attached to a cylindrical assembling base, of a valve body, springs are installed in the limiting holes, balls are installed at the ends, facing the limiting holes, of the springs, and the diameter of the balls is larger than that of the limiting holes. The part, used for driving the ball, of the arranged spring can stretch into one limiting hole, so that when the cylindrical assembling base is rotated to drive the valve element to rotate by a quarter circle through the valve rod, the process that a channel in the valve element communicates with the interior of a pipeline and the process that the channel is closed can be completed; the purpose of opening and closing the control valve can be achieved in the process of rotating the quarter circle of the valve element, ten limiting holes are distributed in the quarter circle of the valve body, and in other words, the control of adjusting the oxygen discharge flow in ten gears can be achieved through the cooperation of the ball beads and the limiting holes. The purpose of rapidly, conveniently and accurately controlling the oxygen discharge flow can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an oxygen flow meter. Background Art

[0002] The float oxygen inhaler is an instrument with an input pressure of <15Mpa and an output pressure of 0.25Mpa. It is mainly used in the oxygen supply system of the medical center, for emergency oxygen supply in medical units and oxygen inhalation for hypoxic patients, and as a device for inhalation flow control in scientific research institutions, industrial and mining industries, etc. The oxygen inhaler has accurate flow, is easy to use and safe. It is an essential device for oxygen treatment of patients in the emergency room and ward of the hospital.

[0003] The buoy-type oxygen inhaler currently used has an oxygen flow meter of the floating type, which is not intuitive to use. It is difficult to adjust the oxygen flow quickly and accurately, resulting in inconvenience in use. For example, a Chinese patent with a publication (announcement) number of CN213911840U discloses a timer-type oxygen flow meter, including an oxygen flow meter, a timer, a gas flow sensor and a sensing tube. A display screen, a timing button and a reset button are provided on the outside of the timer, a battery is provided on the inside of the timer, one end of the sensing tube is connected to the oxygen outlet of the oxygen flow meter, the inner diameter of the sensing tube matches the outer diameter of the oxygen outlet of the oxygen flow meter, and the gas flow sensor is inserted into the sensing tube and connected to the timing dial.

[0004] Although the timer-type oxygen flow meter provided by the above utility model has the advantages of accurate timing and reasonable billing, it still has the defects of the currently used buoy-type oxygen inhaler during use. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides an oxygen flow meter.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an oxygen flow meter, the main technical solutions adopted include:

[0007] A pipeline, on which a flow meter for measuring the oxygen flow rate and a control valve for controlling the oxygen flow rate are installed, wherein:

[0008] The control valve comprises a valve body, a valve core, a valve stem, and a cylindrical fitting seat, wherein the valve body is fixedly mounted on the pipeline, the valve core is rotatably mounted inside the valve body, and the passage on the valve core can communicate with the inside of the pipeline, the valve stem is fixedly mounted on the valve core, and one end of the valve stem away from the valve core movably extends to the outside of the valve body, the cylindrical fitting seat is fixedly mounted on one end of the valve stem away from the valve core, and the cylindrical fitting seat is fitted with the valve body;

[0009] Forty limiting holes are provided on one side surface where the valve body and the cylindrical fitting seat are in contact, and an installation hole is provided on one side surface where the cylindrical fitting seat and the valve body are in contact, a spring is installed in the installation hole, a ball is installed at one end of the spring facing the limiting hole, the diameter of the ball is larger than the diameter of the limiting hole, and under the action of the spring, part of the ball can extend into one of the limiting holes.

[0010] The above oxygen flow meter, wherein: a mounting block is fixedly mounted on the outside of the valve body, an indicator arrow is provided on the mounting block, and ten numbers 0-9 cooperating with the indicator arrow are provided on an end surface of the cylindrical fitting seat away from the valve body.

[0011] The above oxygen flow meter, wherein: a spring seat is fixedly mounted on the surface of the ball, and the spring seat is clamped inside one end of the spring facing the limiting hole.

[0012] The above oxygen flow meter, wherein: a handle is fixedly mounted on an end surface of the cylindrical fitting seat away from the valve body.

[0013] The above oxygen flow meter, wherein: an oxygen inlet connector is fixedly installed at one end of the pipeline close to the control valve, and an oxygen outlet connector is fixedly installed at one end of the pipeline close to the flow meter.

[0014] The utility model has at least the following beneficial effects:

[0015] The oxygen flow meter provided by the utility model is mainly composed of a pipeline, a flow meter and a control valve, wherein the control valve is mainly composed of a valve body, a valve core, a valve stem and a cylindrical fitting seat, and at the same time, forty limiting holes are opened on one side surface where the valve body and the cylindrical fitting seat are in contact, and a mounting hole is opened on one side surface where the cylindrical fitting seat and the valve body are in contact, and a spring is installed in the mounting hole, and a ball is installed at one end of the spring facing the limiting hole, the diameter of the ball is larger than the diameter of the limiting hole, and the part of the spring used to drive the ball can extend into one of the limiting holes, and the setting enables the process of connecting and closing the channel on the valve core and the inside of the pipeline to be completed when the cylindrical fitting seat is rotated to drive the valve core to rotate a quarter of a circle through the valve stem, that is, the process of rotating the valve core a quarter of a circle can complete the purpose of opening and closing the control valve, and 10 limiting holes are distributed on a quarter of a circle of the valve body, that is, through the cooperation of the ball and the limiting hole, the control of the oxygen exhaust flow rate can be completed in 10 gears, and the purpose of quickly, conveniently and accurately controlling the oxygen exhaust flow rate can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of an oxygen flow meter provided in an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram of an oxygen flow meter from another perspective provided in an embodiment of the utility model;

[0019] Figure 3 A partial cross-sectional structural schematic diagram of an oxygen flow meter provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a partial explosion structure of an oxygen flow meter provided in an embodiment of the utility model;

[0021] Figure 5 A schematic structural diagram of a cylindrical mounting seat in an oxygen flow meter provided in an embodiment of the utility model;

[0022] Figure 6 A schematic cross-sectional view of a cylindrical mounting seat in an oxygen flow meter provided by an embodiment of the utility model;

[0023] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Description of Figure Numbers:

[0025] 1. Pipeline; 101. Oxygen inlet connector; 102. Oxygen outlet connector;

[0026] 2. Flow meter;

[0027] 3. Control valve; 301. Valve body; 302. Cylindrical mounting seat; 303. Valve core; 304. Valve stem; 305. Mounting block; 306. Indicator arrow; 307. Handle; 308. Limit hole; 309. Ball; 310. Spring seat; 311. Spring; 312. Mounting hole. DETAILED DESCRIPTION

[0028] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Example

[0030] Please refer to Figures 1 to 7As shown, an oxygen flow meter provided in this embodiment includes: a pipeline 1, on which a flow meter 2 for measuring the oxygen flow and a control valve 3 for controlling the oxygen flow are installed.

[0031] Among them, the control valve 3 includes a valve body 301, a valve core 303, a valve stem 304, and a cylindrical fitting seat 302. The valve body 301 is fixedly installed on the pipeline 1, the valve core 303 is rotatably installed inside the valve body 301, and the channel on the valve core 303 can be connected with the inside of the pipeline 1. The valve stem 304 is fixedly installed on the valve core 303, and one end of the valve stem 304 away from the valve core 303 is movably extended to the outside of the valve body 301. The cylindrical fitting seat 302 is fixedly installed on one end of the valve stem 304 away from the valve core 303, and the cylindrical fitting seat 302 is fitted with the valve body 301.

[0032] Among them, forty limiting holes 308 are opened on one side surface where the valve body 301 and the cylindrical fitting seat 302 are in contact, and an installation hole 312 is opened on one side surface where the cylindrical fitting seat 302 and the valve body 301 are in contact, and a spring 311 is installed in the installation hole 312, and a ball 309 is installed at one end of the spring 311 facing the limiting hole 308, the diameter of the ball 309 is larger than the diameter of the limiting hole 308, and under the action of the spring 311, part of the ball 309 can extend into one of the limiting holes 308.

[0033] The oxygen flow meter adopting the above technical solution is mainly composed of a pipeline 1, a flow meter 2 and a control valve 3, wherein the control valve 3 is mainly composed of a valve body 301, a valve core 303, a valve stem 304 and a cylindrical fitting seat 302, and at the same time, forty limiting holes 308 are opened on one side of the valve body 301 and the cylindrical fitting seat 302, and a mounting hole 312 is opened on one side of the cylindrical fitting seat 302 and the valve body 301, and a spring 311 is installed in the mounting hole 312, and a ball 309 is installed at one end of the spring 311 facing the limiting hole 308, and the diameter of the ball 309 is larger than the diameter of the limiting hole 308, and the spring 311 is installed. The portion used to drive the ball 309 can extend into one of the limiting holes 308. This arrangement enables the cylindrical fitting seat 302 to rotate the valve core 303 through the valve stem 304 to drive the valve core 303 to rotate a quarter of a circle, which can complete the process of connecting and closing the channel on the valve core 303 with the inside of the pipeline 1. That is, the process of rotating the valve core 303 a quarter of a circle can complete the purpose of opening and closing the control valve 3. There are 10 limiting holes 308 distributed on a quarter of a circle of the valve body 301. That is to say, through the cooperation of the ball 309 and the limiting holes 308, 10 levels of control of the oxygen exhaust flow rate can be completed, which can achieve the purpose of quickly, conveniently and accurately controlling the oxygen exhaust flow rate.

[0034] In order to facilitate understanding of the current gear position of the control valve 3, a mounting block 305 is fixedly installed on the outside of the valve body 301, and an indicator arrow 306 is provided on the mounting block 305. At the same time, ten numbers 0-9 that cooperate with the indicator arrow 306 are provided on the end face of the cylindrical mounting seat 302 away from the valve body 301.

[0035] In order to prevent the ball 309 from separating from the spring 311, a spring seat 310 is fixedly installed on the surface of the ball 309, and the spring seat 310 is clamped inside the end of the spring 311 facing the limiting hole 308, which can prevent the ball 309 from separating from the spring 311, thereby improving the structural stability of the control valve 3.

[0036] In order to facilitate the operation of the control valve 3 , a handle 307 is fixedly mounted on an end surface of the cylindrical fitting seat 302 away from the valve body 301 .

[0037] In order to facilitate the connection of the oxygen flow meter to the oxygen supply system, an oxygen inlet connector 101 is fixedly installed at one end of the pipeline 1 close to the control valve 3 , and an oxygen outlet connector 102 is fixedly installed at one end of the pipeline 1 close to the flow meter 2 .

[0038] Working principle: When the oxygen flow meter is used, the oxygen inlet connector 101 is connected to the oxygen supply end, and the oxygen outlet connector 102 is connected to the patient's oxygen inhalation end, and then the control valve 3 is operated by the handle 307. At the same time, the gear of the oxygen flow output is controlled by referring to the indicator arrow 306 and the ten numbers 0-9 to meet the oxygen inhalation needs of different patients.

[0039] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An oxygen flow meter, characterized in that: include: A pipeline (1), on which a flow meter (2) for measuring the oxygen flow rate and a control valve (3) for controlling the oxygen flow rate are installed, wherein: The control valve (3) comprises a valve body (301), a valve core (303), a valve stem (304), and a cylindrical fitting seat (302); the valve body (301) is fixedly mounted on the pipeline (1); the valve core (303) is rotatably mounted inside the valve body (301), and a channel on the valve core (303) can communicate with the inside of the pipeline (1); the valve stem (304) is fixedly mounted on the valve core (303), and one end of the valve stem (304) away from the valve core (303) movably extends to the outside of the valve body (301); the cylindrical fitting seat (302) is fixedly mounted on one end of the valve stem (304) away from the valve core (303), and the cylindrical fitting seat (302) is arranged in close contact with the valve body (301); Forty limiting holes (308) are provided on one side surface where the valve body (301) and the cylindrical fitting seat (302) are in contact with each other, and a mounting hole (312) is provided on one side surface where the cylindrical fitting seat (302) and the valve body (301) are in contact with each other, a spring (311) is installed in the mounting hole (312), a ball (309) is installed at one end of the spring (311) facing the limiting hole (308), the diameter of the ball (309) is larger than the diameter of the limiting hole (308), and under the action of the spring (311), part of the ball (309) can extend into one of the limiting holes (308).

2. The oxygen flow meter according to claim 1, characterized in that: A mounting block (305) is fixedly mounted on the outside of the valve body (301), and an indication arrow (306) is provided on the mounting block (305). Ten numbers 0-9 that cooperate with the indication arrow (306) are provided on an end surface of the cylindrical mounting seat (302) away from the valve body (301).

3. The oxygen flow meter according to claim 1, characterized in that: A spring seat (310) is fixedly mounted on the surface of the ball (309), and the spring seat (310) is clamped inside one end of the spring (311) facing the limiting hole (308).

4. The oxygen flow meter according to claim 2, characterized in that: A handle (307) is fixedly mounted on an end surface of the cylindrical fitting seat (302) away from the valve body (301).

5. The oxygen flow meter according to any one of claims 1 to 4, characterized in that: An oxygen inlet connector (101) is fixedly installed at one end of the pipeline (1) close to the control valve (3), and an oxygen outlet connector (102) is fixedly installed at one end of the pipeline (1) close to the flow meter (2).

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