Medical ozone flow control device

Abstract

The utility model belongs to the field of gas flow control, and particularly relates to a medical ozone flow control device which comprises a shell, a gas inlet pipeline, a pressure control valve, a flow control valve and a suck-back prevention device. One end of the gas inlet pipeline is connected with a gas supply pipeline of an ozone generator, the other end of the gas inlet pipeline is connected with the pressure control valve, the gas outlet end of the pressure control valve is connected with the flow control valve through a pipeline, and the gas outlet end of the flow control valve is connected with a gas outlet pipeline; the other end of the air outlet pipeline extends out of the shell, one end of the suck-back prevention device is connected with the air outlet pipeline, and the other end of the suck-back prevention device is connected with the air inlet pipeline. According to the device, the pressure of output gas can be stabilized while the ozone supply flow is controlled, and the phenomenon of suck-back caused by too low gas pressure is prevented.

Description

Technical Field

[0001] The utility model relates to the field of gas flow control, in particular to a medical ozone flow control device. Background Art

[0002] Ozone therapy is an effective treatment method in some medical applications, especially in wound healing, pain management, infection control, etc. Medical ozone is generally prepared by an ozone generator, and the prepared ozone needs to be strictly flow-controlled and delivered to the patient's affected area again. However, the existing flow control device for controlling the delivery of ozone cannot correct the pressure of the output gas. If the gas pressure is less than 1 bar, back suction will occur, and the patient cannot be treated in time. Therefore, in view of the above problems, a medical ozone flow control device is designed specifically. Utility Model Content

[0003] The utility model aims to solve the above-mentioned problems and designs a medical ozone flow control device in a targeted manner. The device can stabilize the pressure of the output gas while controlling the flow of ozone supply, thereby preventing the phenomenon of back suction caused by too low gas pressure. When it is detected that the pressure is too low, the backup circuit can be opened in time to adjust the pressure, thus saving the time of manually discovering and handling pressure problems and improving the treatment effect on patients.

[0004] To achieve the above-mentioned purpose, the utility model provides a medical ozone flow control device, comprising: a shell, an air inlet pipeline, a pressure control valve, a flow control valve and an anti-backflow device, the pressure control valve and the flow control valve are fixedly connected inside the shell, one end of the air inlet pipeline is connected to the air supply pipeline of the ozone generator, the other end of the air inlet pipeline is connected to the pressure control valve, the air outlet end of the pressure control valve is connected to the flow control valve through a pipeline, the air outlet end of the flow control valve is connected to the air outlet pipeline, and the other end of the air outlet pipeline extends out of the shell, one end of the anti-backflow device is connected to the air outlet pipeline, and the other end of the anti-backflow device is connected to the air inlet pipeline.

[0005] The flow rate and pressure of ozone can be controlled in the above manner, and then the gas can be output according to demand. When the pressure of the output gas is too low, it can be adjusted in time through the anti-backflow device.

[0006] Furthermore, it also includes an auxiliary air intake device and a first electric three-way valve. The auxiliary air intake device is placed in the shell and connected to the air intake pipeline through the first electric three-way valve. The other end of the auxiliary air intake device passes through the shell and is connected to an external air supply source.

[0007] Furthermore, one end of the anti-backflow device close to the first electric three-way valve is connected between the first electric three-way valve and the pressure control valve.

[0008] Furthermore, the anti-backflow device includes: a pressure sensor, a second electric three-way valve and a reflux pipe, one end of the reflux pipe is connected to the second electric three-way valve, and the other end of the reflux pipe is connected between the second electric three-way valve and the pressure control valve.

[0009] Through the above method, when the pressure sensor detects that the gas pressure is too low, the second electric three-way valve will close the valve in the direction of the outlet pipeline and open the valve in the direction of the return pipeline. The gas returns to the pressure control valve along the return pipeline for pressure adjustment. Subsequently, the valve in the initial pipeline direction is opened, the valve in the direction of the return pipeline is closed, and the gas flows out normally.

[0010] Furthermore, the auxiliary air intake device includes a flow control valve and an auxiliary air intake pipeline, the flow control valve is connected to the auxiliary air intake pipeline, one end of the auxiliary air intake pipeline is connected to the first electric three-way valve, and the other end of the auxiliary air intake pipeline is connected to an external air supply source.

[0011] In the above manner, when other gases are needed for combined use in treatment, the auxiliary air intake pipeline can provide a channel for other gases to enter.

[0012] Furthermore, it also includes an electric control valve, which is connected to an end of the return pipe away from the second electric three-way valve.

[0013] Furthermore, the electric control valve includes a sealing disk, a connecting rod and a micro motor, one end of the connecting rod is connected to the output end of the micro motor, and the other end of the connecting rod passes through the outer wall of the reflux pipe and is fixedly connected to the top of the sealing disk. The sealing disk is vertically placed in the reflux pipe and the outer ring is in contact with the inner wall of the reflux pipe.

[0014] In the above manner, when the reflux pipeline is not needed, the pipeline can be closed by rotating the sealing disk to prevent gas from flowing in.

[0015] In summary, the utility model has the following advantages and beneficial technical effects:

[0016] 1. The utility model is a medical ozone flow control device that can detect the pressure signal of the output gas, timely discover the situation where the gas pressure is too low and perform gas reflux treatment, saving the time of users to discover and handle;

[0017] 2. The utility model provides a medical ozone flow control device with a channel for mixing other gases, and can adapt to multiple ozone treatment scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a medical ozone flow control device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of an electric control valve of a medical ozone flow control device of the utility model;

[0021] Figure 3 It is a schematic diagram of the flow of ozone only in a medical ozone flow control device of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the flow of auxiliary gas introduction into a medical ozone flow control device.

[0023] The reference numerals in the accompanying drawings are:

[0024] 1-housing; 2-intake pipeline; 3-first electric three-way valve; 4-pressure control valve; 5-first flow control valve 51-outlet pipeline;

[0025] 6-anti-backflow device; 61-pressure sensor; 62-second electric three-way valve; 63-reflux pipeline; 64-electric control valve; 641-blocking disk; 642-connecting rod; 643-micro motor;

[0026] 7- auxiliary air intake device; 71- second flow control valve; 72- auxiliary air intake pipeline. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 4 The utility model is further described in detail, and examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limiting the utility model.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of this embodiment, the terms "upper", "lower", "right", etc., and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning. The parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] like Figure 1 As shown, it includes: an outer shell 1, an air intake pipeline 2, a pressure control valve 4, a first flow control valve 5 and an anti-backflow device 6. The pressure control valve 4 and the first flow control valve 5 are fixedly connected to the inside of the outer shell 1 by bolts. One end of the air intake pipeline 2 is connected to the air supply pipeline of the ozone generator, and the other end of the air intake pipeline 2 is connected to the pressure control valve 4. The air outlet end of the pressure control valve 4 is connected to the first flow control valve 5 through a pipeline. The air outlet end of the first flow control valve 5 is connected to an air outlet pipeline 51, and the other end of the air outlet pipeline extends out of the outer shell 1. One end of the anti-backflow device 6 is connected to the air outlet pipeline 51, and the other end of the anti-backflow device 6 is connected to the air intake pipeline 2.

[0031] like Figure 1 As shown, it also includes an auxiliary air intake device 7 and a first electric three-way valve 3. The auxiliary air intake device 7 is placed in the outer shell 1 and fixed to the inner wall of the outer shell 1 by bolts, and is connected to the air intake pipeline 2 through the first electric three-way valve 3. The other end of the auxiliary air intake device 7 passes through the outer shell 1 and is connected to an external air supply source.

[0032] like Figure 1 As shown, one end of the anti-backflow device 6 close to the first electric three-way valve 3 is connected between the first electric three-way valve 3 and the pressure control valve 4 .

[0033] like Figure 1 As shown, the anti-backflow device 6 includes: a pressure sensor 61, a second electric three-way valve 62 and a reflux pipe 63, one end of the reflux pipe 63 is connected to the second electric three-way valve 62, and the other end of the reflux pipe 63 is connected between the second electric three-way valve 62 and the pressure control valve 4.

[0034] like Figure 1 As shown, the auxiliary air intake device 7 includes a second flow control valve 71 and an auxiliary air intake pipeline 72. The second flow control valve 71 is installed on the auxiliary air intake pipeline 72. One end of the auxiliary air intake pipeline 72 is connected to the first electric three-way valve 3, and the other end of the auxiliary air intake pipeline 72 is connected to an external air supply source.

[0035] like Figure 1 and Figure 2 As shown, it also includes an electric control valve 64, which is connected to one end of the return pipe 63 away from the second electric three-way valve 62. The electric control valve 64 includes a sealing disk 641, a connecting rod 642 and a micro motor 643. One end of the connecting rod 642 is connected to the output end of the micro motor 643, and the other end of the connecting rod 642 passes through the outer wall of the return pipe 63 and is fixedly connected to the top of the sealing disk 641. The sealing disk 641 is vertically placed in the return pipe 63 and the outer ring is in contact with the inner wall of the return pipe 63. The sealing disk 641 is rotatably connected to the inside of the return pipe 63 through the connecting rod 642.

[0036] The working principle of a medical ozone flow control device is:

[0037] like Figure 3 and Figure 4 As shown, ozone is introduced through the pressure control valve 4 for air pressure adjustment, and then enters the first flow control valve 5 to adjust the flow rate. The output gas first passes through the pressure sensor. If the pressure is greater than 1 bar, the gas is output normally. If the gas pressure is less than 1 bar, the gas returns to the pressure control valve 4 through the reflux line 63 for pressure adjustment, and then passes through the first flow control valve 5 for flow adjustment. After being output to the pressure sensor, if the pressure meets the setting, it can be output. When auxiliary gas is needed for use, for example, oxygen is needed, the oxygen passes through the second flow control valve 71, and then reaches the first electric three-way valve 3 through the auxiliary air intake line 72, and then mixes with ozone, and then enters the above-mentioned devices in sequence, and then is output.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A medical ozone flow control device, characterized in that: include: A housing (1), an air intake pipeline (2), a pressure control valve (4), a first flow control valve (5) and an anti-backflow device (6); the pressure control valve (4) and the first flow control valve (5) are fixedly connected inside the housing (1); one end of the air intake pipeline (2) is connected to an air supply pipeline of an ozone generator; the other end of the air intake pipeline (2) is connected to the pressure control valve (4); the air outlet end of the pressure control valve (4) is connected to the first flow control valve (5) via a pipeline; the air outlet end of the first flow control valve (5) is connected to an air outlet pipeline (51), and the other end of the air outlet pipeline protrudes from the housing (1); one end of the anti-backflow device (6) is connected to the air outlet pipeline (51), and the other end of the anti-backflow device (6) is connected to the air intake pipeline (2).

2. A medical ozone flow control device according to claim 1, characterized in that: It also comprises an auxiliary air intake device (7) and a first electric three-way valve (3); the auxiliary air intake device (7) is disposed in the housing (1) and connected to the air intake pipeline (2) via the first electric three-way valve (3); the other end of the auxiliary air intake device (7) passes through the housing (1) and is connected to an external air supply source.

3. A medical ozone flow control device according to claim 2, characterized in that: One end of the anti-backflow device (6) close to the first electric three-way valve (3) is connected between the first electric three-way valve (3) and the pressure control valve (4).

4. A medical ozone flow control device according to claim 3, characterized in that: The anti-backflow device (6) comprises: a pressure sensor (61), a second electric three-way valve (62) and a return pipe (63), one end of the return pipe (63) is connected to the second electric three-way valve (62), and the other end of the return pipe (63) is connected between the second electric three-way valve (62) and the pressure control valve (4).

5. A medical ozone flow control device according to claim 2, characterized in that: The auxiliary air intake device (7) comprises a second flow control valve (71) and an auxiliary air intake pipeline (72), wherein the second flow control valve (71) is connected to the auxiliary air intake pipeline (72), one end of the auxiliary air intake pipeline (72) is connected to the first electric three-way valve (3), and the other end of the auxiliary air intake pipeline (72) is connected to an external air supply source.

6. A medical ozone flow control device according to claim 4, characterized in that: It also includes an electric control valve (64), wherein the electric control valve (64) is connected to an end of the return pipe (63) away from the second electric three-way valve (62).

7. A medical ozone flow control device according to claim 6, characterized in that: The electrically controlled valve (64) comprises a blocking disk (641), a connecting rod (642) and a micro motor (643), one end of the connecting rod (642) is connected to the output end of the micro motor (643), the other end of the connecting rod (642) passes through the outer wall of the reflux pipe (63) and is fixedly connected to the top of the blocking disk (641), and the blocking disk (641) is vertically placed in the reflux pipe (63) and the outer ring is in contact with the inner wall of the reflux pipe (63).

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