Adjusting device for multi-gas-path portable instrument

Abstract

The utility model discloses an adjusting device for a multi-gas-path portable instrument, which comprises an adjusting gas sample gas storage bottle and a connecting hose, an electromagnetic valve is arranged in the top end of the adjusting gas sample gas storage bottle, a gas outlet pipe is fixed at the top end of the adjusting gas sample gas storage bottle, the other end of the gas outlet pipe is fixedly connected with a shunting gas pipe, and the shunting gas pipe is fixedly connected with the connecting hose. The flow dividing air pipe is provided with an air inlet end and two output ends, the air inlet end of the flow dividing air pipe is connected with the air outlet pipe, a screwing end block is fixed to the top end of the connecting hose, and threads are formed in the inner wall of the screwing end block and the inner walls of the two output ends of the flow dividing air pipe. According to the utility model, a single methane portable instrument and a CO portable instrument can be adjusted, a plurality of methane portable instruments and CO portable instruments can also be adjusted at the same time, flexible selection can be carried out according to the number of the methane portable instruments and the CO portable instruments which need to be adjusted, a large amount of adjustment operation time is saved, and the adjustment efficiency of the methane portable instruments and the CO portable instruments is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-gas-path adjustment devices, in particular to a adjustment device for a multi-gas-path portable instrument. Background Art

[0002] During the mining process, the concentration of methane and carbon monoxide in the mine tunnel needs to be tested to ensure the safety of the miners working in the mine and to avoid excessive concentrations of methane and carbon monoxide in the mine tunnel, which may cause breathing difficulties or even suffocation for the workers.

[0003] When detecting the methane and carbon monoxide concentrations in the mine tunnel, a portable methane detector and a portable CO detector need to be used. Before the portable methane detector and the portable CO detector are detected, the portable methane detector and the portable CO detector need to be calibrated to avoid errors in the data detected by the portable methane detector and the portable CO detector. When calibrating the portable methane detector and the portable CO detector, the portable methane detector and the portable CO detector are connected to the flow meter, and then the flow meter is connected to the gas sample bottle, and the gas sample in the gas sample bottle is input into the portable methane detector and the portable CO detector through the flow meter, and the portable methane detector and the portable CO detector are calibrated according to the flow meter readings.

[0004] When using a gas sample bottle and a flow meter to calibrate a portable methane detector and a portable CO detector, only a single portable methane detector or portable CO detector can be calibrated. It takes a long time to calibrate multiple portable methane detectors and portable CO detectors, and each time one is detected, the flow meter and the portable methane detector or portable CO detector need to be reconnected, resulting in low calibration efficiency. Therefore, this does not meet existing needs. In this regard, we propose a calibration device for multi-gas-path portable instruments. Utility Model Content

[0005] The purpose of the present utility model is to provide a calibration device for multi-gas-path portable instruments to solve the problems raised in the above-mentioned background technology that when a portable methane detector and a portable CO detector are calibrated using a gas sample bottle and a flow meter, only a single portable methane detector or a portable CO detector can be calibrated, and it takes a long time to calibrate multiple portable methane detectors and portable CO detectors, and the flow meter and the portable methane detector or the portable CO detector need to be reconnected for each detection, resulting in low calibration efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calibration device for a multi-gas-path portable instrument, comprising an adjusting gas sample storage cylinder and a connecting hose, an electromagnetic valve being provided inside the top end of the adjusting gas sample storage cylinder, an air outlet pipe being fixed to the top end of the adjusting gas sample storage cylinder, a diversion air pipe being fixedly connected to the other end of the air outlet pipe, the diversion air pipe having an air inlet end and two output ends, the air inlet end of the diversion air pipe being connected to the air outlet pipe, a screw-on end block being fixed to the top end of the connecting hose, and threads being provided on the inner wall of the screw-on end block and the inner walls of the two output ends of the diversion air pipe.

[0007] Preferably, both output ends of the diversion air pipe are connected to a connecting air pipe, the bottom end of the connecting air pipe is connected to a secondary diversion air pipe, the secondary diversion air pipe is connected to the screw-on end block by a connecting air pipe, the connecting air pipe and the diversion air pipe are perpendicular to each other in space, and the secondary diversion air pipe and the connecting air pipe are on the same plane in space.

[0008] Preferably, the secondary diversion air pipe has an air inlet end and two air output ends, and the inner walls of the air inlet end and the air output end of the secondary diversion air pipe are both provided with threads.

[0009] Preferably, both ends of the connecting air pipe are fixed with screw-on end pipes, and the outer side of the screw-on end pipe is provided with a connection thread. The screw-on end pipes at the ends of the connecting air pipe are connected to the output end of the diversion air pipe, the air inlet end and output end of the secondary diversion air pipe and the screw-on end block through threads.

[0010] Preferably, a connecting ring is installed between the screw-on end block and the output end of the diverter air pipe, and butt-end pipes are fixed to both ends of the connecting ring.

[0011] Preferably, the outer surfaces of the two butt-end pipes are provided with threads with the same rotation direction, and the butt-end pipes are connected to the output end of the shunt air pipe and the rotary end block by threads.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model utilizes connecting air pipes to connect a secondary shunt air pipe with a shunt air pipe, two secondary shunt air pipes, and a secondary shunt air pipe with a screw-on end block, so that the airflow output from the outlet pipe can be distributed to multiple connecting hoses, so that the airflow can flow to the flow meters connected to the multiple connecting hoses. The methane portable meter and the CO portable meter connected to the multiple flow meters can be tested synchronously, saving a lot of adjustment operation time and improving the adjustment efficiency of the methane portable meter and the CO portable meter.

[0014] 2. The utility model directly connects the connecting hose and the screw-on end block to the output end of the shunt gas pipe, so that the gas path of a single methane portable meter, a CO portable meter, two methane portable meters, or two CO portable meters can be calibrated. Flexible selection can be made according to the number of methane portable meters and CO portable meters, thereby improving the calibration efficiency of the methane portable meters and CO portable meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0016] Figure 2 This is a schematic structural diagram of the second embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model connecting the trachea;

[0018] Figure 4 This is a structural diagram of the butt-end pipe of the utility model.

[0019] In the figure: 1. Adjusting gas sample storage cylinder; 2. Outlet pipe; 3. Diverter pipe; 4. Connecting pipe; 5. Secondary diverter pipe; 6. Connecting hose; 7. Screw-on end block; 8. Connecting ring; 9. Screw-on end pipe; 10. Docking end pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The first embodiment Figure 1 and Figure 3 As shown, a calibration device for a multi-gas path portable instrument comprises a regulating gas sample storage cylinder 1 and a connecting hose 6, an electromagnetic valve is provided inside the top of the regulating gas sample storage cylinder 1, an outlet pipe 2 is fixed to the top of the regulating gas sample storage cylinder 1, the other end of the outlet pipe 2 is fixedly connected to a shunt pipe 3, the shunt pipe 3 has an air inlet end and two output ends, the air inlet end of the shunt pipe 3 is connected to the air outlet pipe 2, a screw-on end block 7 is fixed to the top of the connecting hose 6, and the inner wall of the screw-on end block 7 and the inner wall of the two output ends of the shunt pipe 3 are both open. It is provided with threads, and the two output ends of the diversion air pipe 3 are connected to the connecting air pipe 4. The bottom end of the connecting air pipe 4 is connected to the secondary diversion air pipe 5. The secondary diversion air pipe 5 is connected to the screw-on end block 7 by the connecting air pipe 4. The connecting air pipe 4 and the diversion air pipe 3 are perpendicular to each other in space. The secondary diversion air pipe 5 and the connecting air pipe 4 are on the same plane in space, ensuring that the secondary diversion air pipes 5 connected to the two connecting air pipes 4 will not contact or interfere with each other, and ensuring that there is enough space between the two adjacent connecting hoses 6.

[0022] The secondary diversion air pipe 5 has an air inlet end and two output ends. The inner walls of the air inlet end and the output end of the secondary diversion air pipe 5 are provided with threads. The two end ends of the connecting air pipe 4 are fixed with screw-on end pipes 9. The outer side of the screw-on end pipe 9 is provided with a connection thread. The screw-on end pipe 9 at the end of the connecting air pipe 4 is connected to the output end of the diversion air pipe 3, the air inlet end and the output end of the secondary diversion air pipe 5 and the screw-on end block 7 by threads. The connecting air pipe 4 can be used to connect the secondary diversion air pipe 5 to the diversion air pipe 3, the two secondary diversion air pipes 5, and the secondary diversion air pipe 5 to the screw-on end block 7, so that the airflow output from the outlet pipe 2 can be distributed to multiple connecting hoses 6, so that the airflow can flow to the flow meters connected to the multiple connecting hoses 6, and the methane portable meter and the CO portable meter connected to the multiple flow meters can be synchronously detected, saving a lot of adjustment operation time and improving the adjustment efficiency of the methane portable meter and the CO portable meter.

[0023] The second embodiment Figure 2 and Figure 4 As shown, it includes a regulating gas sample storage cylinder 1 and a connecting hose 6. An electromagnetic valve is provided inside the top of the regulating gas sample storage cylinder 1. An outlet pipe 2 is fixed to the top of the regulating gas sample storage cylinder 1. The other end of the outlet pipe 2 is fixedly connected to a diversion air pipe 3. The diversion air pipe 3 has an air inlet end and two output ends. The air inlet end of the diversion air pipe 3 is connected to the air outlet pipe 2. A screw-on end block 7 is fixed to the top of the connecting hose 6. The inner wall of the screw-on end block 7 and the inner wall of the two output ends of the diversion air pipe 3 are both provided with threads.

[0024] A connecting ring 8 is installed between the screw-on end block 7 and the output end of the shunt air pipe 3. A butt-end pipe 10 is fixed to both end ends of the connecting ring 8. The outer surfaces of the two butt-end pipes 10 are provided with threads with the same rotation direction. The butt-end pipe 10 is threadedly connected to the output end of the shunt air pipe 3 and the screw-on end block 7. The connecting hose 6, the screw-on end block 7 and the output end of the shunt air pipe 3 are directly connected. The gas path can be calibrated for a single methane portable meter, a CO portable meter or two methane portable meters or two CO portable meters. Flexible selection can be made according to the number of methane portable meters and CO portable meters, thereby improving the calibration efficiency of the methane portable meter and the CO portable meter.

[0025] Working principle: First, according to the methane portable meter and CO portable meter that need to be calibrated, choose to directly use the screw-on end block 7 to connect to the diversion air pipe 3, or use the connecting air pipe 4 and the secondary diversion air pipe 5 for diversion. When the number of methane portable meters and CO portable meters is less than or equal to two, use the connecting ring 8 and the docking end pipe 10 to directly connect the screw-on end block 7 to the output end of the diversion air pipe 3. When the number of methane portable meters and CO portable meters is greater than two, use the connecting air pipe 4 and the secondary diversion air pipe 5 to connect to the output end of the diversion air pipe 3, and connect the connecting hose 6 and the screw-on end block 7 to the bottom end of the connecting air pipe 4 connected to the output end of the secondary diversion air pipe 5, add a detection branch, and then connect the connecting hose 6 to the flow meter, and the methane to be calibrated The portable instrument and the CO portable instrument are connected to the flow meter. After the connection is completed, the electromagnetic valve at the top of the regulating gas sample storage cylinder 1 is opened, so that the calibrated gas sample in the regulating gas sample storage cylinder 1 enters the gas outlet pipe 2 from the regulating gas sample storage cylinder 1, and then follows the diversion gas pipe 3, the screw-on end block 7, and the connecting hose 6 to enter the flow meter and the methane portable instrument and the CO portable instrument, or the gas sample follows the diversion gas pipe 3, the connecting gas pipe 4, the secondary diversion gas pipe 5, the screw-on end block 7, and the connecting hose 6 to enter the flow meter and the methane portable instrument and the CO portable instrument. A single methane portable instrument and CO portable instrument can be calibrated, or multiple methane portable instruments and CO portable instruments can be calibrated at the same time, saving a lot of calibration operation time and improving the calibration efficiency of the methane portable instrument and the CO portable instrument.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A calibration device for a multi-gas-path portable instrument, comprising a regulating gas sample storage cylinder (1) and a connecting hose (6), wherein an electromagnetic valve is provided inside the top end of the regulating gas sample storage cylinder (1), and characterized in that: An outlet pipe (2) is fixed to the top of the regulating gas sample storage bottle (1), and the other end of the outlet pipe (2) is fixedly connected to a diversion pipe (3), and the diversion pipe (3) has an air inlet end and two output ends. The air inlet end of the diversion pipe (3) is connected to the outlet pipe (2), and a screw-on end block (7) is fixed to the top of the connecting hose (6), and the inner wall of the screw-on end block (7) and the inner walls of the two output ends of the diversion pipe (3) are both provided with threads.

2. The multi-gas-path portable instrument calibration device according to claim 1, characterized in that: Both output ends of the diverter air pipe (3) are connected to a connecting air pipe (4); the bottom end of the connecting air pipe (4) is connected to a secondary diverter air pipe (5); the secondary diverter air pipe (5) and the screw-on end block (7) are connected via the connecting air pipe (4); the connecting air pipe (4) and the diverter air pipe (3) are perpendicular to each other in space; and the secondary diverter air pipe (5) and the connecting air pipe (4) are located on the same plane in space.

3. The multi-gas-path portable instrument calibration device according to claim 2, characterized in that: The secondary shunt air pipe (5) has an air inlet end and two air outlet ends, and the inner walls of the air inlet end and the air outlet end of the secondary shunt air pipe (5) are both provided with threads.

4. The device for calibrating a multi-gas-path portable instrument according to claim 3, characterized in that: Both ends of the connecting air pipe (4) are fixed with screw-on end pipes (9), and the outer side of the screw-on end pipe (9) is provided with a connection thread. The screw-on end pipe (9) at the end of the connecting air pipe (4) is connected to the output end of the branch air pipe (3), the air inlet end and the output end of the secondary branch air pipe (5), and the screw-on end block (7) through threads.

5. The multi-gas-path portable instrument calibration device according to claim 1, characterized in that: A connecting ring (8) is installed between the screw-on end block (7) and the output end of the diverter air pipe (3), and both ends of the connecting ring (8) are fixed with butt-end pipes (10).

6. The device for calibrating a multi-gas-path portable instrument according to claim 5, characterized in that: The outer surfaces of the two butt-end pipes (10) are provided with threads with the same rotation direction, and the butt-end pipes (10) are connected to the output end of the diverter air pipe (3) and the screw-on end block (7) by threads.

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