A device for calibrating a spirometer

Abstract

The utility model relates to a lung function appearance technical field provides a kind of lung function appearance calibration device, including workbench, the top of the workbench is close to left side fixed installation has pump machine, the left side fixed installation of pump machine has first air outlet pipeline, the inner wall left side fixed embedding of first air outlet pipeline has connecting pipeline, the left side fixed installation of first air outlet pipeline has first gasket, first gasket fixedly covers the outer surface of connecting pipeline, the utility model, when using, not only can be through the cooperation of first gasket and second gasket, ensure the sealing between the air inlet pipeline of lung function appearance and calibration device, to avoid air leakage problem, ensure that gas flow accurately reaches lung function appearance, ensure the accuracy of calibration process, simultaneously when pump machine operates, by flowmeter real-time measurement air flow, ensure the accurate collection of gas flow data, provide reliable basis for the calibration of lung function appearance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lung function appearance technical field especially relates to a lung function appearance calibration device. BACKGROUND

[0002] The lung function appearance (Spirometer) is a kind of medical instrument for evaluating respiratory system function, and the lung function appearance calibration device is the key equipment to ensure the measurement accuracy of lung function appearance, and the calibration device can effectively correct the measurement error of lung function appearance, improve the reliability and diagnostic accuracy of instrument.

[0003] The existing lung function appearance calibration device and the air inlet pipeline connection mode of lung function appearance are usually by directly sleeving or embedding the air inlet pipeline of lung function appearance on the air outlet pipeline of calibration device, however, this connection mode has certain hidden danger, and air leakage problem is easily caused, since sealing is not complete, gas is prone to leakage when passing through connecting part, if there is small gap or gap between interfaces when gas flows, gas flow can escape, resulting in actual flow lower than expectation, which not only reduces the flow of calibration gas, but also can affect the calibration accuracy of lung function appearance. SUMMARY

[0004] The utility model discloses a kind of lung function appearance calibration devices, to solve the problem of the prior art that the air inlet pipeline of lung function appearance is directly sleeved or embedded on the air outlet pipeline of calibration device, this connection mode has certain hidden danger, and air leakage problem is easily caused.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a lung function appearance calibration device, including workbench, the top of the workbench is fixedly installed with pump machine near left side, the left side of the pump machine is fixedly installed with first air outlet pipeline, the inner wall left side of the first air outlet pipeline is fixedly embedded with connecting pipeline, the left side of the first air outlet pipeline is fixedly installed with first sealing pad, the first sealing pad is fixedly sleeved on the outer surface of the connecting pipeline, the both sides of the first air outlet pipeline are all set with sliding slot, the inner surface of two sliding slots is all slidably connected with sliding block, the outer side of two sliding blocks is fixedly installed with sleeve, the inner wall of the sleeve is provided with second sealing pad, the second sealing pad is movably sleeved on the outer surface of the first air outlet pipeline, the both sides of the sleeve are screw-connected with two first bolts.

[0006] As a preferred embodiment, the right side of the pump machine is fixedly installed with second air outlet pipeline, and the right side of the second air outlet pipeline is fixedly installed with air cylinder.

[0007] The technical effect of the above further scheme is: then the air inside air cylinder can be extracted through second air outlet pipeline.

[0008] As a preferred implementation form, the bottom of the air cylinder is fixedly installed on the top right side of the workbench, and the inside of the second air outlet pipeline is provided with a flow meter.

[0009] The technical effect of the further scheme is that the air cylinder can store air.

[0010] As a preferred implementation form, the top of the air cylinder is fixedly installed with a first air inlet pipeline, and the top of the first air inlet pipeline is fixedly installed with a filter.

[0011] The technical effect of the further scheme is that the first air inlet pipeline can inject air into the air cylinder.

[0012] As a preferred implementation form, the inside of the filter is movably embedded with a filter plate, the inside of the first air inlet pipeline is provided with a one-way valve, and the inner wall of the filter is provided with a positioning groove on both sides.

[0013] The technical effect of the further scheme is that the filter plate can filter air.

[0014] As a preferred implementation form, the filter plate is fixedly installed with a positioning column on both sides, and the two positioning columns are matched with the positioning groove.

[0015] The technical effect of the further scheme is that the positioning column can slide through the positioning groove.

[0016] As a preferred implementation form, the left outer surface of the filter plate is movably sleeved with a connecting piece, and the left side of the filter is provided with a plurality of threaded grooves.

[0017] The technical effect of the further scheme is that the connecting piece can be sleeved on the outer surface of the filter plate.

[0018] As a preferred implementation form, the inside of the connecting piece is screw-connected with a plurality of second bolts, the plurality of second bolts are matched with the threaded grooves, and the top of the filter is fixedly installed with a second air inlet pipeline.

[0019] The technical effect of the further scheme is that the second bolt can be rotated to be separated from the threaded groove.

[0020] Compared with the prior art, the utility model has the advantages and positive effects that,

[0021] 1. The utility model discloses, when using, not only can through the cooperation of first sealing gasket and second sealing gasket, the sealing property between the lung function instrument air inlet pipeline and calibration device is ensured, to avoid the air leakage problem, guarantee the gas flow accurate to reach the lung function instrument, ensure the accuracy of calibration process, simultaneously when pump machine runs, through flowmeter real -time measurement air flow, the accurate collection of gas flow data is ensured for the calibration of lung function instrument provides reliable basis, the air inlet pipeline of lung function instrument is directly sleeved or embedded in the air outlet pipeline of calibration device in prior art, and this kind of connecting mode has certain hidden danger, and the air leakage problem is easily caused.

[0022] 2. The utility model discloses, when using, through the setting of connecting piece and positioning column structure, not only can through filter plate to the air filtration, guarantee the air quality of entering air cylinder, personnel is convenient to the filter plate and removes replacement simultaneously, reduced the complexity and time in replacement process, improved equipment maintenance efficiency. ACCURACY

[0023] Figure 1 It is the rear view three -dimensional structure schematic diagram of the calibration device of lung function instrument provided by the utility model;

[0024] Figure 2 It is the first air inlet pipeline cross section three -dimensional structure schematic diagram of the calibration device of lung function instrument provided by the utility model;

[0025] Figure 3 It is the front view three -dimensional structure schematic diagram of the calibration device of lung function instrument provided by the utility model;

[0026] Figure 4 It is the filter piece cross section three -dimensional structure schematic diagram of the calibration device of lung function instrument provided by the utility model.

[0027] LEGEND:

[0028] 1, workbench;101, pump machine;102, first air outlet pipeline;103, connecting pipeline;104, sliding groove;105, sliding block;106, sleeve;107, first sealing gasket;108, second sealing gasket;109, first bolt;110, second air outlet pipeline;111, air cylinder;112, flowmeter;2, first air inlet pipeline;201, check valve;202, filter piece;203, positioning groove;204, filter plate;205, positioning column;206, connecting piece;207, second bolt;208, thread groove;209, second air inlet pipeline. DETAILED DESCRIPTION

[0029] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment 1, please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a lung function instrument calibration device, including workbench 1, the top of workbench 1 is close to left side and is fixedly installed with pump 101, the left side of pump 101 is fixedly installed with first air outlet pipe 102, the inner wall left side of first air outlet pipe 102 is fixedly embedded with connecting pipe 103, the left side of first air outlet pipe 102 is fixedly installed with first gasket 107, first gasket 107 is fixedly sleeved in the outer surface of connecting pipe 103, the both sides of first air outlet pipe 102 are all set with sliding slot 104, the inner surface of two sliding slots 104 is all slidingly connected with sliding block 105, the outside of two sliding blocks 105 is fixedly installed with sleeve 106, the inner wall of sleeve 106 is provided with second gasket 108, second gasket 108 is movably sleeved in the outer surface of first air outlet pipe 102, the both sides of sleeve 106 are all screw-connected with two first bolts 109, the right side of pump 101 is fixedly installed with second air outlet pipe 110, the right side of second air outlet pipe 110 is fixedly installed with air cylinder 111, the bottom of air cylinder 111 is fixedly installed in the top right side of workbench 1, the inside of second air outlet pipe 110 is provided with flowmeter 112.

[0031] In this embodiment, the operator first places the air intake pipe of the pulmonary function instrument onto the outer surface of the connecting pipe 103, with one end of it fitting against the left side of the first sealing gasket 107. Then, the operator pulls the sleeve 106 to the left, causing the slider 105 to slide to the left on the inner surface of the groove 104. This causes the sleeve 106 to slide synchronously to the left on the outer surface of the first air outlet pipe 102. As the sleeve 106 slides, it causes the second sealing gasket 108 to move synchronously, allowing the second sealing gasket 108 to cover the area where the air intake pipe of the pulmonary function instrument meets the first sealing gasket 107. Next, the operator rotates the first bolt 109, causing one end of it to fit against the outer wall of the first air outlet pipe 102 and the air intake pipe of the pulmonary function instrument, thus securing the sleeve 106. Then, the operator can start the pump 101 via the power supply system on the workbench 1. During operation, the pump 101 draws air from the air cylinder 111 through the second air outlet pipe 110 into the pump 101. Inside the pump 101, as air flows through the second outlet pipe 110, it passes through the flow meter 112 to obtain air flow data. After entering the pump 101, the air is transferred by the pump 101, so that the air passes through the first outlet pipe 102 and the connecting pipe 103 into the air intake pipe of the pulmonary function instrument. The air is then transported into the pulmonary function instrument through the air intake pipe. At the same time, the personnel compare the changes in the values ​​on the pulmonary function instrument with the changes in the values ​​on the flow meter 112 to calibrate the pulmonary function instrument. In addition, the cooperation of the first sealing gasket 107 and the second sealing gasket 108 ensures the airtightness between the air intake pipe of the pulmonary function instrument and the calibration device to avoid air leakage and ensure that the gas flow accurately reaches the pulmonary function instrument, ensuring the accuracy of the calibration process. At the same time, when the pump 101 is running, the flow meter 112 measures the air flow in real time to ensure accurate collection of gas flow data, providing a reliable basis for the calibration of the pulmonary function instrument.

[0032] Example 2, as Figures 1 to 4 The air cylinder 111 shown has a first air inlet pipe 2 fixedly installed on its top. A filter element 202 is fixedly installed on the top of the first air inlet pipe 2. A filter plate 204 is movably embedded inside the filter element 202. A one-way valve 201 is provided inside the first air inlet pipe 2. Positioning grooves 203 are provided on both sides of the inner wall of the filter element 202. Positioning posts 205 are fixedly installed on both sides of the filter plate 204. Both positioning posts 205 match the positioning grooves 203. A connector 206 is movably fitted on the outer left side of the filter plate 204. Multiple threaded grooves 208 are provided on the left side of the filter element 202. Multiple second bolts 207 are threaded inside the connector 206. The multiple second bolts 207 match the threaded grooves 208. A second air inlet pipe 209 is fixedly installed on the top of the filter element 202.

[0033] In the embodiment, the personnel can open the one-way valve 201, inject air into the second air inlet pipe 209, make the air enter the inside of the first air inlet pipe 2 through the filter plate 204 in the filter 202, and transport the inside of the air cylinder 111 through the first air inlet pipe 2 to store the air. Meanwhile, the personnel can reverse the second bolt 207 to make it separate from the threaded groove 208, pull the connecting piece 206 to the left side to make it separate from the left outer surface of the filter plate 204, then pull the filter plate 204 to the left, drive the positioning column 205 to slide to the left in the positioning groove 203, and then make the filter plate 204 separate from the filter 202 to replace the filter plate 204. Through the structure of the connecting piece 206 and the positioning column 205, the air can be filtered through the filter plate 204 to ensure the air quality entering the cylinder 111, and the filter plate 204 is convenient to disassemble and replace, which reduces the complexity and time in the replacement process and improves the equipment maintenance efficiency.

[0034] Working principle: in use, personnel first set the air inlet pipeline of the lung function instrument on the outer surface of the connecting pipeline 103, and make one end of it fit the left side of the first sealing gasket 107, pull the sleeve 106 to the left side to drive the sliding block 105 to slide on the inner surface of the sliding groove 104, and then make the sleeve 106 slide synchronously on the outer surface of the first air outlet pipeline 102. When the sleeve 106 slides, it will drive the second sealing gasket 108 to move synchronously, so that the second sealing gasket 108 can cover the fit between the air inlet pipeline of the lung function instrument and the first sealing gasket 107. Then personnel rotate the first bolt 109 to make one end of it fit the outer wall of the first air outlet pipeline 102 and the air inlet pipeline of the lung function instrument, so as to fix the sleeve 106. Then personnel can start the pump 101 on the workbench 1 through the power supply system of the pump 101, so that the pump 101 can draw the air in the air cylinder 111 into the interior of the pump 101 when it is running, and the air will pass through the flow meter 112 when it flows through the second air outlet pipeline 110, so as to obtain the flow data of the air. After the air enters the interior of the pump 101, it will be transported by the pump 101, so that the air enters the interior of the first air outlet pipeline 102 and the connecting pipeline 103 and the air inlet pipeline of the lung function instrument, and the air is transported into the interior of the lung function instrument through the air inlet pipeline. At the same time, personnel can calibrate the lung function instrument by comparing the value change on the flow meter 112 with the value change on the lung function instrument. The cooperation of the first sealing gasket 107 and the second sealing gasket 108 can ensure the sealing between the air inlet pipeline of the lung function instrument and the calibration device, so as to avoid air leakage problem and ensure that the gas flow accurately reaches the lung function instrument, ensuring the accuracy of the calibration process. At the same time, the flow meter 112 can measure the air flow in real time when the pump 101 is running, ensuring the accurate collection of gas flow data and providing reliable basis for the calibration of the lung function instrument.

[0035] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A pulmonary function instrument calibration device, comprising a workbench (1), characterized in that: A pump (101) is fixedly installed on the top of the workbench (1) near the left side. A first air outlet pipe (102) is fixedly installed on the left side of the pump (101). A connecting pipe (103) is fixedly embedded on the left side of the inner wall of the first air outlet pipe (102). A first sealing gasket (107) is fixedly installed on the left side of the first air outlet pipe (102). The first sealing gasket (107) is fixedly sleeved on the outer surface of the connecting pipe (103). Slide grooves (104) are provided on both sides of the first air outlet pipe (102). Slider (105) is slidably connected to the inner surface of the two slide grooves (104). A sleeve (106) is fixedly installed on the outer side of the two sliders (105). A second sealing gasket (108) is provided on the inner wall of the sleeve (106). The second sealing gasket (108) is movably sleeved on the outer surface of the first air outlet pipe (102). Two first bolts (109) are threadedly connected to both sides of the sleeve (106).

2. The pulmonary function instrument calibration device according to claim 1, characterized in that: A second air outlet pipe (110) is fixedly installed on the right side of the pump (101), and an air cylinder (111) is fixedly installed on the right side of the second air outlet pipe (110).

3. The pulmonary function instrument calibration device according to claim 2, characterized in that: The bottom of the air cylinder (111) is fixedly installed on the top right side of the workbench (1), and a flow meter (112) is installed inside the second air outlet pipe (110).

4. The pulmonary function instrument calibration device according to claim 3, characterized in that: The top of the air cylinder (111) is fixedly installed with a first air inlet pipe (2), and the top of the first air inlet pipe (2) is fixedly installed with a filter element (202).

5. A pulmonary function instrument calibration device according to claim 4, characterized in that: The filter element (202) has a filter plate (204) movably embedded inside, and the first air intake pipe (2) is provided with a one-way valve (201). The filter element (202) has positioning grooves (203) on both sides of its inner wall.

6. A pulmonary function instrument calibration device according to claim 5, characterized in that: Positioning posts (205) are fixedly installed on both sides of the filter plate (204), and both positioning posts (205) are matched with the positioning groove (203).

7. A pulmonary function instrument calibration device according to claim 6, characterized in that: A connector (206) is movably fitted on the left outer surface of the filter plate (204), and multiple threaded grooves (208) are opened on the left side of the filter element (202).

8. A pulmonary function instrument calibration device according to claim 7, characterized in that: The connector (206) has multiple second bolts (207) internally threaded, and the multiple second bolts (207) are all matched with the threaded groove (208). The top of the filter element (202) is fixedly installed with a second air intake pipe (209).

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