Two-way control valve group for breathing air path

Abstract

The utility model relates to the technical field of breathing gas circuit bidirectional control valve groups, and discloses a breathing gas circuit bidirectional control valve group which comprises a control valve body, one side of the control valve body is provided with a concentration control assembly for controlling the concentration of gas inhaled by a patient, and the other side of the control valve body is provided with a control valve. A one-way assembly for preventing gas exhausted by a patient from penetrating through the concentration control assembly is arranged in the concentration control assembly; by arranging the concentration control assembly, the one-way assembly, the limiting assembly and the fixing assembly, when a patient uses the breathing gas path two-way control valve set to assist in breathing, the limiting assembly is matched with the one-way assembly, so that air can enter the concentration control assembly, and then the air enters the breathing gas path two-way control valve set to be mixed with oxygen to reduce the oxygen concentration; the fixing assembly can control the rotating angle of the limiting assembly, so that the oxygen concentration can be reduced, oxygen poisoning caused by the fact that the concentration of oxygen inhaled by a patient is too high is avoided, and the oxygen concentration can be adjusted according to patients of different physiques.

Description

Technical Field

[0001] The utility model relates to the technical field of a two-way control valve group for a breathing air circuit, and in particular to a two-way control valve group for a breathing air circuit. Background Art

[0002] The respiratory air circuit two-way control valve group is a device used to control the flow of gas in the respiratory air circuit. It can realize two-way control of the air circuit as needed. It is usually used in medical, industrial and other fields. When the respiratory air circuit two-way control valve group is used in the medical field, it is often used to control the flow of gas in the respiratory air circuit. It allows the gas to flow freely in two directions, thereby realizing the normal operation of the respiratory equipment.

[0003] The respiratory airway refers to the channel system involved in gas exchange and flow, especially the part related to the patient's breathing. It mainly involves oxygen supply, carbon dioxide emission and the delivery of anesthetic gases. When the patient breathes, the two-way control valve group of the respiratory airway will separate the oxygen intake pipe and the carbon dioxide exhaust pipe to prevent the patient from inhaling and exhaling carbon dioxide and ensure the oxygen concentration of oxygen inhalation. However, when the patient breathes oxygen, oxygen and air need to be mixed to reduce the oxygen concentration, because some patients will suffer from oxygen poisoning if they breathe high-purity oxygen for a long time. According to the different physical conditions of each person, the required oxygen purity content is also different. Therefore, it is necessary to design a respiratory airway two-way control valve group design that can control the oxygen concentration inhaled by the patient. Utility Model Content

[0004] In order to solve the technical problem that a respiratory air circuit two-way control valve group cannot assist a patient in adjusting the oxygen inhalation concentration, the utility model provides a respiratory air circuit two-way control valve group.

[0005] The utility model is implemented by the following technical scheme: a respiratory airway two-way control valve group, including a control valve body, one side of the control valve body is provided with a concentration control component for controlling the concentration of the patient's inhaled gas, the interior of the concentration control component is provided with a one-way component for preventing the patient's exhaled gas from passing through the concentration control component, one side of the one-way component is provided with a limiting component for adjusting the opening range of the one-way component, and one side of the limiting component is provided with a fixing component for fixing the limiting component after the adjustment of the limiting component is completed.

[0006] Through the above technical solution, when using the two-way control valve group of the respiratory airway, by rotating the limiting component, the one-way component can be opened when the patient breathes, allowing oxygen and air to mix and reduce the oxygen concentration.

[0007] As a further improvement of the above solution, the concentration control assembly includes a connecting pipe fixedly connected to one side of the control valve body, a control box fixedly connected to one end of the connecting pipe, and an air intake pipe fixedly connected to one side of the control box.

[0008] Through the above technical solution, air enters the control box and the connecting pipe from the air intake pipe, and is mixed with oxygen inside the control valve body to reduce the oxygen concentration.

[0009] As a further improvement of the above-mentioned scheme, the one-way component includes a rotating block installed inside the control box and provided with a torsion spring inside, a connecting rod fixedly installed on one side of the rotating block, a fixed plate fixedly installed on one side of the connecting rod, and a baffle fixedly installed on one side of the fixed plate, one side of the baffle being in contact with one end of the intake pipe.

[0010] Through the above technical solution, the baffle will block one end of the air intake pipe to prevent carbon dioxide from being discharged from the air intake pipe and then inhaled by the patient.

[0011] As a further improvement of the above scheme, the limiting component includes a rotating column rotatably installed inside the control box, a connecting plate fixedly installed on one side of the rotating column and a rubber column fixedly installed on one side of the connecting plate, and one side of the rubber column is in contact with one side of the fixed plate.

[0012] Through the above technical solution, the rubber column can limit the baffle by rotating the rotating column.

[0013] As a further improvement of the above solution, one end of the rotating column passes through the control box and extends to the outside thereof, an arc-shaped scale plate is fixedly mounted on one side of the control box, and a pointer matched with the arc-shaped scale plate is fixedly mounted on one side of the rotating column.

[0014] Through the above technical solution, after the rotating column is rotated, the pointer and the arc-shaped scale plate can be observed to know the angle of the baffle opening.

[0015] As a further improvement of the above scheme, a sliding groove is provided on one side of the rotating column, and the fixing assembly includes a fixing block slidably arranged inside the sliding groove and a limiting plate fixedly installed on one side of the control box, and a plurality of fixing grooves matched with the fixing block are provided on one side of the limiting plate, and a lifting rod is fixedly installed on one side of the fixing block.

[0016] Through the above technical solution, after the rotating column is rotated, the fixing block can be used in conjunction with the limiting plate to lock the rotating column and prevent it from rotating.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model arranges a concentration control component, a one-way component, a limiting component and a fixing component. When a patient uses a two-way control valve group for breathing assistance, the limiting component can be used in conjunction with the one-way component to allow air to enter the concentration control component, and mix with oxygen before entering the two-way control valve group for breathing to reduce the oxygen concentration. The fixing component can control the rotation angle of the limiting component. This arrangement can reduce the oxygen concentration to prevent the patient from inhaling too high an oxygen concentration and causing oxygen poisoning, and can also adjust the oxygen concentration for patients with different physical conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the control box of the utility model;

[0021] Figure 3 For this utility model Figure 1 A-section structure enlarged view.

[0022] Description of main symbols:

[0023] 1. Control valve body; 201. Connecting pipe; 202. Control box; 203. Inlet pipe; 301. Rotating block; 302. Connecting rod; 303. Fixed plate; 304. Baffle; 401. Rotating column; 402. Connecting plate; 403. Rubber column; 501. Fixed block; 502. Limiting plate; 6. Arc scale plate; 7. Pointer; 8. Lifting rod. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Please combine Figure 1-Figure 3 A respiratory airway bidirectional control valve group of this embodiment includes a control valve body 1, a concentration control component for controlling the concentration of the patient's inhaled gas is provided on one side of the control valve body 1, a one-way component for preventing the patient's exhaled gas from passing through the concentration control component is provided inside the concentration control component, a limiting component for adjusting the opening range of the one-way component is provided on one side of the one-way component, and a fixing component for fixing the limiting component after the adjustment of the limiting component is completed is provided on one side of the limiting component.

[0026] Combination Figure 1 and Figure 2The concentration control component includes a connecting pipe 201 fixedly connected to one side of the control valve body 1, a control box 202 fixedly connected to one end of the connecting pipe 201, and an intake pipe 203 fixedly connected to one side of the control box 202. Air enters the control box 202 and the connecting pipe 201 from the intake pipe 203, and is mixed with oxygen inside the control valve body 1 to reduce the oxygen concentration.

[0027] Combination Figure 2 The one-way component includes a rotating block 301 installed inside the control box 202 and provided with a torsion spring, a connecting rod 302 fixedly installed on one side of the rotating block 301, a fixing plate 303 fixedly installed on one side of the connecting rod 302, and a baffle 304 fixedly installed on one side of the fixing plate 303. One side of the baffle 304 is in contact with one end of the air inlet pipe 203. The baffle 304 will block one end of the air inlet pipe 203 to prevent carbon dioxide from being discharged from the air inlet pipe 203 and then inhaled by the patient.

[0028] Combination Figure 2 and Figure 3 The limiting component includes a rotating column 401 rotatably mounted inside the control box 202, a connecting plate 402 fixedly mounted on one side of the rotating column 401, and a rubber column 403 fixedly mounted on one side of the connecting plate 402. One side of the rubber column 403 is in contact with one side of the fixing plate 303. One end of the rotating column 401 passes through the control box 202 and extends to the outside thereof. An arc scale plate 6 is fixedly mounted on one side of the control box 202. A pointer 7 adapted to the arc scale plate 6 is fixedly mounted on one side of the rotating column 401. A sliding groove is provided on one side of the rotating column 401. The fixed component includes a sliding setting The fixed block 501 inside the sliding groove and the limit plate 502 fixedly installed on one side of the control box 202, one side of the limit plate 502 is provided with multiple fixing grooves compatible with the fixed block 501, and a lifting rod 8 is fixedly installed on one side of the fixed block 501. When the rotating column 401 rotates, the rubber column 403 can limit the baffle 304. After the rotating column 401 is rotated, the pointer 7 and the arc scale plate 6 can be observed to know the angle of the baffle 304. After the rotating column 401 is rotated, the fixed block 501 can be used to cooperate with the limit plate 502, so that the rotating column 401 can be locked and cannot rotate.

[0029] The implementation principle of a two-way control valve group for a breathing air circuit in the embodiment of the present application is as follows: when a patient uses the two-way control valve group for a breathing air circuit to assist breathing, the lifting rod 8 can be lifted to lift the fixed block 501. The fixed block 501 loses the restriction of the limit plate 502, which allows the rotating column 401 to rotate. The rotation of the rotating column 401 allows the connecting plate 402 to move with the rubber column 403, thereby canceling the fixing effect of the baffle 304. In this way, when the patient breathes, the baffle 304 will open due to suction to allow external air to pass through the control box 202 into the control valve body 1 and mix with oxygen, thereby reducing the oxygen concentration. When the patient exhales, the rotating block 301 with an internal torsion spring will cooperate with the connecting rod 302 and the fixed plate 303 to allow the baffle 304 to open. The plate 304 blocks the air inlet pipe 203, so that the exhaled carbon dioxide can only go out from the exhaust pipe of the control valve body 1, preventing the carbon dioxide just exhaled from being inhaled by the patient again. The rotation angle of the rotating column 401 can be controlled according to the patient's physique, that is, the opening amplitude of the baffle 304 can be controlled. The larger the opening amplitude of the baffle 304 is, the more air will enter, and vice versa. Just observe the arc scale plate 6. When the rotation angle is adjusted, the rotating column 401 can be locked by using the fixing block 501 to cooperate with the fixing groove of the limit plate 502 to prevent the rotating column 401 from rotating by itself. This setting can not only reduce the oxygen concentration to prevent the patient from inhaling too high an oxygen concentration and causing oxygen poisoning, but also adjust the oxygen concentration for patients with different physiques.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A respiratory airway bidirectional control valve assembly, comprising a control valve body (1), characterized in that: One side of the control valve body (1) is provided with a concentration control component for controlling the concentration of the patient's inhaled gas, the interior of the concentration control component is provided with a one-way component for preventing the patient's exhaled gas from passing through the concentration control component, one side of the one-way component is provided with a limiting component for adjusting the opening range of the one-way component, and one side of the limiting component is provided with a fixing component for fixing the limiting component after the adjustment of the limiting component is completed.

2. A breathing airway bidirectional control valve assembly as claimed in claim 1, characterized in that: The concentration control component comprises a connecting pipe (201) fixedly connected to one side of the control valve body (1), a control box (202) fixedly connected to one end of the connecting pipe (201), and an air intake pipe (203) fixedly connected to one side of the control box (202).

3. A breathing airway bidirectional control valve assembly as claimed in claim 2, characterized in that: The one-way component comprises a rotating block (301) installed inside the control box (202) and provided with a torsion spring inside, a connecting rod (302) fixedly installed on one side of the rotating block (301), a fixing plate (303) fixedly installed on one side of the connecting rod (302), and a baffle (304) fixedly installed on one side of the fixing plate (303), wherein one side of the baffle (304) is in contact with one end of the intake pipe (203).

4. A breathing airway bidirectional control valve assembly as claimed in claim 3, characterized in that: The limiting component comprises a rotating column (401) rotatably mounted inside the control box (202), a connecting plate (402) fixedly mounted on one side of the rotating column (401), and a rubber column (403) fixedly mounted on one side of the connecting plate (402), wherein one side of the rubber column (403) is in contact with one side of the fixing plate (303).

5. A breathing airway bidirectional control valve assembly as claimed in claim 4, characterized in that: One end of the rotating column (401) passes through the control box (202) and extends to the outside thereof; an arc-shaped scale plate (6) is fixedly mounted on one side of the control box (202); and a pointer (7) adapted to the arc-shaped scale plate (6) is fixedly mounted on one side of the rotating column (401).

6. A respiratory airway bidirectional control valve assembly as claimed in claim 4, characterized in that: A sliding groove is provided on one side of the rotating column (401), and the fixing assembly includes a fixing block (501) slidably arranged inside the sliding groove and a limiting plate (502) fixedly installed on one side of the control box (202), and a plurality of fixing grooves adapted to the fixing block (501) are provided on one side of the limiting plate (502), and a lifting rod (8) is fixedly installed on one side of the fixing block (501).

Images