Novel checking device for respiratory volume of comprehensive detector of respirator

Abstract

The utility model belongs to the field of checking of special equipment checking devices, and particularly relates to a novel checking device for the breathing air volume of a comprehensive detector of a respirator, which comprises an air volume testing pipeline, a flow meter is arranged at one end, close to an air outlet, of the air volume testing pipeline, and the air volume testing pipeline is connected with a pumping pipeline in parallel. The two ends of the pumping pipeline are connected with the air flow testing pipeline, the pumping pipeline is provided with an air pump conveying towards the flow meter, the air flow testing pipeline between the two ends of the pumping pipeline is provided with an air supply one-way valve, the air flow testing pipeline in front of the air supply one-way valve is provided with a pressure controller II and an air bag, and the pressure controller II is electrically connected with the air pump. And performing feedback control on the air pump. According to the utility model, the pumping pipeline and the air pump are introduced and matched with the pressure controller II, so that the residual gas can be effectively conveyed to the flowmeter when the air bag is contracted to the tail section, and the residual gas in the air bag and the pipeline is reduced, thereby improving the accurate measurement of the flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of novel verification device of respirator comprehensive detector breath volume, belong to the verification field of special equipment testing device. BACKGROUND

[0002] Respirator comprehensive detector has a function for simulating human breathing (simulating artificial lung), in order to ensure that it has higher test ability, it needs to be verified by user in a planned manner periodically, to find out whether the equipment maintains test ability in time, if there is a problem, measures can be taken in time, so as to ensure the test ability and level of detection agency, therefore, a kind of gas volume checking device is designed and made, unstable airflow can be converted into stable airflow suitable for flow test device collection, only the exhaled gas volume is measured. But in actual use, it is found that when the air bag is contracted to the end section, the pressure is insufficient, it is difficult to send the remaining gas to the flowmeter through the pipeline, residual gas appears in the air bag and pipeline, thereby affecting the accurate measurement of flow, so that the measurement result is small.

[0003] Therefore, the device needs to be improved. UTILITY MODEL CONTENT

[0004] According to the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a novel verification device of respirator comprehensive detector breath volume with more accurate measurement results to solve the above problems.

[0005] The novel verification device of respirator comprehensive detector breath volume, comprising a gas volume test pipeline, one end of the gas volume test pipeline is an external machine interface, the other end is a gas outlet, the end of the gas volume test pipeline close to the external machine interface is provided with an exhalation one-way valve, a suction port is provided between the exhalation one-way valve and the external machine interface, and a suction one-way valve is provided at the suction port;The end of the gas volume test pipeline close to the gas outlet is provided with a flowmeter, the gas volume test pipeline is connected with a suction and delivery pipeline in parallel, the two ends of the suction and delivery pipeline are connected with the gas volume test pipeline, a gas pump for delivering to the flowmeter direction is provided on the suction and delivery pipeline, a gas delivery one-way valve is provided on the gas volume test pipeline between the two ends of the suction and delivery pipeline, a pressure controller II and an air bag are provided on the gas volume test pipeline before the gas delivery one-way valve, and the pressure controller II is electrically connected with the gas pump to feedback control the gas pump.

[0006] The utility model discloses can convert the unstable airflow to the stable airflow suitable for the collection of flow test device, only measures the exhaled gas volume, uses two check valves, and the inlet air is directly inhaled air, and the exhaled gas is connected subsequent pipeline, carries out flow collection. The air bag is used to buffer, when the detector inhales, the air bag slowly sends the gas into the flowmeter through the air sending check valve, and in this process, the air pump works and slowly pumps the gas in the air bag into the flowmeter and measures. Pressure controller II is used for monitoring the air pressure of air volume test pipeline and air bag, when the air pressure is higher than the set value, the air pump opens, when the air pressure is lower than the set value (such as negative pressure), the air pump closes, prevents causing air pump overload and pipeline component damage.

[0007] The air volume test pipeline before pressure controller II is equipped with electromagnetic valve, and pressure controller I is equipped between electromagnetic valve and exhalation check valve, and pressure controller I is electrically connected with electromagnetic valve and carries out feedback control. Pressure controller I is used to control electromagnetic valve, when the pipeline pressure rises when exhaling, pressure controller I output signal controls electromagnetic valve to open, and the gas flows, and closes when inhaling. Electromagnetic valve opens when exhaling and closes when inhaling along with the breathing action. The detector inhales to block the exhalation pipeline, prevents the gas in the air bag from entering the left side pipeline, causes the test data to be small and brings error.

[0008] Preferably, the air volume test pipeline before the flowmeter is equipped with a flow regulating valve to adjust the flow of the exhalation pipeline to the measurable amount within the accuracy range of the flowmeter.

[0009] Preferably, the air bag is provided with a plurality of air bags to increase the air storage capacity.

[0010] The air volume test pipeline and the pumping pipeline are located in the box, the external machine interface and the gas outlet are separately arranged at both ends of the box, and the display screen of the flowmeter is arranged on the box. The entire pipeline is connected inside the box, the left side is the inlet, the inlet is connected with the respirator comprehensive detector through the hose outside, the right side is the outlet, and the outlet is directly connected with the atmosphere.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] By introducing the pumping pipeline and the air pump, cooperating with the pressure controller II, the remaining gas in the air bag can be effectively transported to the flowmeter when the air bag is contracted to the end section, the residual gas in the air bag and the pipeline is reduced, the accurate measurement of the flow is improved, and the problem of small measurement result is avoided. Moreover, the air pump is intelligently controlled, the air pump is closed when the air pressure is lower than the set value (such as negative pressure), which can prevent the air pump from being overloaded and the pipeline components from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure principle drawing of the utility model.

[0014] In the figure: 1. External unit interface; 2. Inhalation port; 3. Inhalation check valve; 4. Exhalation check valve; 5. Pressure controller I; 6. Solenoid valve; 7. Gas volume test pipeline; 8. Air bag; 9. Flow regulating valve; 10. Pressure controller II; 11. Air pump; 12. Pumping pipeline; 13. Gas supply check valve; 14. Flow meter; 15. Gas outlet; 16. Box. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described herein.

[0017] For example, multiple embodiments may have various modifications and various forms, and it should be understood that the scope of rights of the present invention includes equivalents that can implement the technical idea.

[0018] like Figure 1 As shown, this embodiment is implemented through the following technical solutions: it includes a housing 16, within which is disposed a gas volume test line 7. The gas volume test line 7 has an external unit interface 1 at one end and a gas outlet 15 at the other end, with the external unit interface 1 and the gas outlet 15 being located at opposite ends of the housing 16. An exhalation check valve 4 is disposed on the end of the gas volume test line 7 near the external unit interface 1, an inhalation port 2 is disposed between the exhalation check valve 4 and the external unit interface 1, and an inhalation check valve 3 is disposed at the inhalation port 2. A flow meter 14 is disposed on the end of the gas volume test line 7 near the gas outlet 15, and a flow regulating valve 9 is disposed on the gas volume test line 7 before the flow meter 14. The display screen of the flow meter 14 is disposed on the housing 16. The gas volume test pipeline 7 is connected in parallel with a pumping pipeline 12, both ends of the pumping pipeline 12 are connected to the gas volume test pipeline 7, and the pumping pipeline 12 is provided with an air pump 11 that transports air in the direction of the flow meter 14. The gas volume test pipeline 7 between the two ends of the pumping pipeline 12 is provided with an air supply check valve 13, and the gas volume test pipeline 7 before the air supply check valve 13 is provided with a pressure controller II10 and multiple air bags 8. The pressure controller II10 is electrically connected to the air pump 11 to perform feedback control on the air pump 11.

[0019] In addition, a solenoid valve 6 is provided on the gas volume test pipeline 7 before the pressure controller II10, and a pressure controller I5 is provided between the solenoid valve 6 and the exhalation one-way valve 4. The pressure controller I5 is electrically connected to the solenoid valve 6 to perform feedback control on the solenoid valve 6.

[0020] The utility model discloses can convert the unstable airflow to the stable airflow suitable for the collection of flow test device, only the measurement of the exhaled gas amount, use two check valves, the air intake directly inhales air, and the exhaled gas is connected subsequent pipeline, carries out flow collection. Air bag 8 is used to buffer, when the detector inhales, air bag 8 slowly sends gas into flowmeter 14 through gas sending check valve 13, and in this process, air pump 11 works through suction and delivery pipeline 12 and also slowly pumps the gas in air bag 8 into flowmeter 14 to measure. Pressure controller II 10 is used for monitoring the air pressure of gas amount test pipeline 7 and air bag 8, when the air pressure is higher than the set value, air pump 11 opens, when the air pressure is lower than the set value (such as negative pressure), air pump 11 closes, prevents causing air pump overload and pipeline component damage.

[0021] Pressure controller I 5 is used to control electromagnetic valve 6, when exhaling, the pressure in pipeline rises, and pressure controller I 5 output signal controls electromagnetic valve 6 to open, and gas flows, and inhales when closing. Electromagnetic valve 6 follows the breathing action, and opens when exhaling, and closes when inhaling. The detector inhales to block the exhale pipeline, prevents the gas in air bag 8 from entering the left pipeline, causes the test data to be small and brings the error.

[0022] The utility model discloses through introducing suction and delivery pipeline 12 and air pump 11, cooperate pressure controller II 10, ensure that air bag 8 can effectively transport the residual gas to flowmeter 14 when contracting to the end section, reduce the residual gas in air bag 8 and pipeline, thereby improve the accurate measurement of flow, avoid the problem that the measurement result is small.

[0023] Of course, the above-mentioned content is only the preferred embodiment of the utility model, can not be considered for limiting the embodiment range of the utility model. The utility model also is not limited to the above example, and the equal change and improvement of ordinary skill in the art within the essential range of the utility model, all should be attributed to the patent coverage range of the utility model.

Claims

1. A novel breathing volume calibration device for a comprehensive respirator detector, comprising a volume test pipeline (7), one end of the volume test pipeline (7) being an external machine interface (1), and the other end being a gas outlet (15), an exhalation check valve (4) being provided at the end of the volume test pipeline (7) close to the external machine interface (1), an inhalation port (2) being provided between the exhalation check valve (4) and the external machine interface (1), and an inhalation check valve (3) being provided at the inhalation port (2); a flow meter (14) being provided at the end of the volume test pipeline (7) close to the gas outlet (15), and characterized in that: The gas volume test pipeline (7) is connected in parallel with a pumping pipeline (12), both ends of the pumping pipeline (12) are connected to the gas volume test pipeline (7), an air pump (11) for delivering air in the direction of a flow meter (14) is provided on the pumping pipeline (12), an air supply check valve (13) is provided on the gas volume test pipeline (7) between the two ends of the pumping pipeline (12), a pressure controller II (10) and an air bag (8) are provided on the gas volume test pipeline (7) before the air supply check valve (13), and the pressure controller II (10) is electrically connected to the air pump (11) to perform feedback control on the air pump (11).

2. The novel breath volume calibration device for a comprehensive respirator detector according to claim 1, characterized in that: A solenoid valve (6) is provided on the gas volume test pipeline (7) before the pressure controller II (10), and a pressure controller I (5) is provided between the solenoid valve (6) and the exhalation one-way valve (4). The pressure controller I (5) is electrically connected to the solenoid valve (6) to perform feedback control on the solenoid valve (6).

3. The novel breath volume calibration device for a comprehensive respirator detector according to claim 1, characterized in that: A flow regulating valve (9) is provided on the gas volume test pipeline (7) before the flow meter (14).

4. The novel breath volume calibration device for a comprehensive respirator detector according to claim 1, characterized in that: There are multiple air bags (8).

5. The novel breath volume calibration device for a comprehensive respirator detector according to claim 1, characterized in that: The gas volume test pipeline (7) and the pumping pipeline (12) are located in the box (16), the external machine interface (1) and the gas outlet (15) are respectively arranged at both ends of the box (16), and the display screen of the flow meter (14) is arranged on the box (16).

Images