Toxic gas analysis sampler

Abstract

The utility model discloses a poisonous gas analysis sampler, which belongs to the field of air detection and comprises a tripod, a base is fixedly arranged at the top of the tripod, a fixing plate is fixedly connected to the top of the base close to the side edge, a box body is fixedly connected to one side of the fixing plate, an adjusting assembly is arranged in the box body and fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the base. A locking assembly is arranged on the surface of the supporting plate, a sampling gun is arranged in the locking assembly, an output port is formed in the top of the tail end of the sampling gun, the top of the base is in threaded connection with a machine shell, a drying inserting groove and a collecting inserting groove are formed in the machine shell, a gas path assembly is arranged on one side of the collecting inserting groove, and a detector is arranged in the gas path assembly. A control terminal is arranged outside the machine shell. By arranging the adjusting assembly, the pitching angle of the sampling gun can be adjusted through the rotating handle, the effect of collecting toxic gas at a high position and a low position is achieved, by arranging the gas path assembly, gas retained in equipment can be exhausted, and the accuracy of data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection, in particular to a toxic gas analysis sampler. Background Art

[0002] A toxic gas analysis sampler can collect and analyze gas pollutants in the air of the environment to be detected. Various toxic gases are generated during industrial production and house decoration. It is necessary to analyze the relevant data of toxic gases in time and take targeted measures for treatment to avoid harming physical health;

[0003] There are many types of toxic gases. Toxic gases with a density less than that of air will accumulate on the roof, and toxic gases with a density greater than that of air will sink to the ground. If more accurate data is to be obtained, it is only possible to adjust the height of the bracket or have the detector hold the sampling gun to take samples at appropriate positions;

[0004] Before collecting samples, there is irrelevant air remaining in the sampling gun and the gas path. During analysis, it will affect the accuracy of the toxic gas concentration data. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the prior art that it is inconvenient to collect samples at high or low positions during air detection and the interference of the remaining gas cannot be excluded, and to propose a toxic gas analysis sampler.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A toxic gas analysis sampler includes a tripod. A base is fixedly arranged at the top of the tripod. A fixing plate is fixedly connected to the top of the base near the side. A box body is fixedly connected to one side of the fixing plate. An adjusting component is arranged in the box body. The adjusting component is fixedly connected to a supporting plate. A locking component is arranged on the surface of the supporting plate. A sampling gun is arranged in the locking component. An output port is arranged at the top of the end of the sampling gun. A casing is threadedly connected to the top of the base. A drying slot and a collection slot are opened inside the casing. An air path component is arranged on one side of the collection slot. A detector is arranged in the air path component. A control terminal is arranged outside the casing.

[0008] Preferably, the adjusting component includes a worm gear. One side of the worm gear is rotatably connected to the fixing plate. The other side of the worm gear is fixedly connected to the supporting plate. The worm teeth at the bottom of the worm gear are engaged with a worm. One end of the worm is rotatably connected to the inner wall of the box body. The other end of the worm passes through the box body and is fixedly connected to a turning handle.

[0009] Preferably, the locking component includes a clamping groove and a fixing ring. The clamping groove is formed on the surface of the pallet, the bottom of the fixing ring is fixedly connected to the pallet, a rotating shaft is arranged on one side of the fixing ring, and a buckle is arranged on the other side of the fixing ring corresponding to the rotating shaft.

[0010] Preferably, the size of the drying slot matches that of common U-shaped drying tubes and wash bottles, and the size of the collection slot matches that of a 205 ml impact absorption bottle.

[0011] Preferably, the gas path component includes an air inlet pipe. A conversion valve is fixedly installed at the bottom of the air inlet pipe. One end of the conversion valve is fixedly connected to an air outlet pipe, the other end of the conversion valve is fixedly connected to an exhaust pipe, the output end of the exhaust pipe is threadedly connected to an exhaust fan, the output end of the air outlet pipe is fixedly connected to the input end of a detector, and the output end of the detector is fixedly connected to the input end of an air pump.

[0012] Preferably, the signal input ends of the conversion valve, the detector and the air pump are electrically connected to the signal output end of a control terminal.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting the adjusting component, the present utility model can drive the worm to drive the worm gear to rotate by shaking the turning handle, drive the pallet to rotate around the worm gear through the worm gear, and then adjust the pitching angle of the sampling gun. When the angle adjustment is completed, the angle is fixed through the self-locking property of the worm, so as to achieve the function of adjusting and locking the pitching angle of the sampling gun, and further realize the function of collecting toxic gases at high and low positions.

[0015] 2. By setting the gas path component, the present utility model can discharge the gas remaining inside the device. By closing the first air outlet pipe through the conversion valve, the remaining gas can be discharged through the second air outlet pipe under the action of the exhaust fan. By closing the second air outlet pipe through the conversion valve, the sample gas can enter the detector, so as to achieve the effect of discharging the remaining gas and improving the sample quality, and further improve the accuracy of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a toxic gas analysis sampler proposed by the present utility model;

[0017] Figure 2 is a gas path structural schematic diagram of a toxic gas analysis sampler proposed by the present utility model;

[0018] Figure 3 is a pitching mechanism structural schematic diagram of a toxic gas analysis sampler proposed by the present utility model;

[0019] Figure 4Schematic structural diagram of a housing of a toxic gas analysis sampler proposed by the present utility model;

[0020] Figure 5 Schematic structural diagram of a gas circuit assembly of a toxic gas analysis sampler proposed by the present utility model.

[0021] In the figure: 1, tripod; 2, base; 3, fixing plate; 4, box body; 5, worm gear; 6, worm; 7, turning handle; 8, support plate; 9, card slot; 10, fixing ring; 11, rotating shaft; 12, buckle; 13, sampling gun; 14, output port; 15, housing; 16, drying slot; 17, collection slot; 18, intake pipe; 19, conversion valve; 20, outlet pipe; 21, exhaust pipe; 22, exhaust fan; 23, detector; 24, air pump; 25, control terminal. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , a toxic gas analysis sampler includes a tripod 1. A base 2 is fixedly arranged at the top of the tripod 1. A fixing plate 3 is fixedly connected to the top of the base 2 near the side. A box body 4 is fixedly connected to one side of the fixing plate 3. An adjusting assembly is arranged in the box body 4. The adjusting assembly is fixedly connected to a support plate 8. A locking assembly is arranged on the surface of the support plate 8. A sampling gun 13 is arranged in the locking assembly. An output port 14 is arranged at the top end of the sampling gun 13. The base 2 is threadedly connected to a housing 15 at the top. A drying slot 16 and a collection slot 17 are opened inside the housing 15. A gas circuit assembly is arranged on one side of the collection slot 17. A detector 23 is arranged in the gas circuit assembly. A control terminal 25 is arranged outside the housing 15.

[0024] Furthermore, the adjusting assembly includes a worm gear 5. One side of the worm gear 5 is rotatably connected to the fixing plate 3. The other side of the worm gear 5 is fixedly connected to the support plate 8. The spiral teeth at the bottom of the worm gear 5 are engaged with a worm 6. One end of the worm 6 is rotatably connected to the inner wall of the box body 4. The other end of the worm 6 passes through the box body 4 and is fixedly connected to a turning handle 7. By shaking the turning handle 7, the worm 6 can be driven to drive the worm gear 5 to rotate. The support plate 8 is driven to rotate around the worm gear 5 by the worm gear 5, and then the sampling gun 13 is driven to rotate synchronously, realizing the function of adjusting the pitching angle of the sampling gun 13.

[0025] It should be noted that: after the angle adjustment is completed, the position of the support plate 8 is fixed by the self-locking property of the worm 6.

[0026] Furthermore, the locking assembly includes a card slot 9 and a fixing ring 10. The card slot 9 is opened on the surface of the support plate 8. The bottom of the fixing ring 10 is fixedly connected to the support plate 8. A rotating shaft 11 is provided on one side of the fixing ring 10, and a buckle 12 is provided on the other side of the fixing ring 10 corresponding to the rotating shaft 11. Through the card slot 9 and the fixing ring 10, the sampling gun 13 can be locked on the surface of the support plate 8. By rotating the fixing ring 10, the fixing ring 10 can be made to closely adhere to the sampling gun 13. By rotating the buckle 12, the fixing ring 10 can be locked, thereby completing the locking of the sampling gun 13.

[0027] It should be noted that: the size of the card slot 9 matches the butt of the sampling gun 13, and the size of the fixing ring 10 matches the barrel of the sampling gun 13, so that the sampling gun 13 can be placed on the surface of the support plate 8.

[0028] Furthermore, the size of the drying slot 16 matches common U-shaped drying tubes and wash bottles, and the size of the collection slot 17 matches 250 ml impact absorption bottles. By setting different buffer bottles in the drying slot 16, various toxic gases can be dried, improving the versatility of this toxic gas analysis sampler.

[0029] It should be noted that: both ends of the drying slot 16 are set as rectangular holes for placing U-shaped drying tubes, and the center of the drying slot 16 is set as a circular hole for placing wash bottles.

[0030] Furthermore, the gas path assembly includes an intake pipe 18. A conversion valve 19 is fixedly installed at the bottom of the intake pipe 18. One end of the conversion valve 19 is fixedly connected to an outlet pipe 20, and the other end of the conversion valve 19 is fixedly connected to an exhaust pipe 21. The output end of the exhaust pipe 21 is threadedly connected to an exhaust fan 22. The output end of the outlet pipe 20 is fixedly connected to the input end of a detector 23. The output end of the detector 23 is fixedly connected to the input end of an air pump 24. By closing the outlet pipe 20 leading to the detector 23 through the conversion valve 19, the retained gas can be discharged through the exhaust fan 22 before sampling. After the retained gas is discharged, the gas path leading to the detector 23 is switched through the conversion valve 19, achieving the effect of discharging the retained gas and improving the sample quality.

[0031] Furthermore, the signal input ends of the conversion valve 19, the detector 23, and the air pump 24 are electrically connected to the signal output end of a control terminal 25.

[0032] When the utility model is in use, the tripod 1 is adjusted to a suitable height, and the output port 14 of the sampling gun 13, the buffer bottle, the impinger bottle, and the intake pipe 18 are connected through a hose to complete the gas path connection. Then, the sampling gun 13 is placed in the tray 8, and the fixing ring 10 is rotated until it is close to the sampling gun 13. Finally, the fixing ring 10 is locked by the buckle 12;

[0033] Before working, by shaking the turning handle 7 clockwise, the worm 6 is driven to rotate clockwise, and the worm 6 drives the worm wheel 5 to rotate, so as to adjust the elevation angle of the tray 8. By shaking the turning handle 7 counterclockwise, the worm 6 is driven to rotate counterclockwise, and the worm 6 drives the worm wheel 5 to rotate in the reverse direction, so as to adjust the depression angle of the tray 8. When adjusted to the appropriate position, the turning handle 7 is released, and the tray 8 can be locked by the self-locking property of the worm 6 to complete the work preparation;

[0034] During work, the exhaust time is set by using the control terminal 25 according to the on-site conditions. During exhaust, according to the program settings, the switching valve 19 closes the outlet pipe 20, and the gas path is set as: intake pipe 18, switching valve 19, exhaust pipe 21, exhaust fan 22. At the same time, the exhaust fan 22 is turned on, and the stagnant gas is discharged from the device through the exhaust fan 22. After the exhaust time ends, the switching valve 19 closes the exhaust pipe 21 and opens the outlet pipe 20, and the gas path is changed to: intake pipe 18, switching valve 19, outlet pipe 20, detector 23, air pump 24. At the same time, the exhaust fan 22 is turned off and the detector 23 is turned on. Under the action of the air pump 24, the sample gas is inhaled and analyzed by the detector 23. After the analysis is completed, the gas sample will be stored in the impinger bottle, and the analysis data will be stored in the control terminal 25. A paper report can be obtained by connecting a Bluetooth printer to the control terminal 25.

[0035] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the utility model.

Claims

1. A toxic gas analysis sampler, comprising a tripod (1), characterized in that: The tripod (1) is fixedly provided with a base (2) on the top, a fixing plate (3) is fixedly connected to the top of the base (2) near the side, a box body (4) is fixedly connected to one side of the fixing plate (3), an adjustment component is arranged inside the box body (4), the adjustment component is fixedly connected to the support plate (8), a locking component is arranged on the surface of the support plate (8), a sampling gun (13) is arranged inside the locking component, an output port (14) is arranged at the top of the end of the sampling gun (13), a housing (15) is threadedly connected to the top of the base (2), a drying slot (16) and a collection slot (17) are provided inside the housing (15), a gas path component is arranged on one side of the collection slot (17), a detector (23) is arranged inside the gas path component, and a control terminal (25) is arranged outside the housing (15).

2. A toxic gas analysis sampler according to claim 1, characterized in that: The adjustment assembly comprises a worm wheel (5), one side of the worm wheel (5) is rotatably connected to the fixed plate (3), the other side of the worm wheel (5) is fixedly connected to the support plate (8), the vortex at the bottom of the worm wheel (5) is meshed with a worm (6), one end of the worm (6) is rotatably connected to the inner wall of the box body (4), and the other end of the worm (6) passes through the box body (4) and is fixedly connected to the turning handle (7).

3. A toxic gas analysis sampler according to claim 1, characterized in that: The locking assembly comprises a card slot (9) and a fixing ring (10), wherein the card slot (9) is provided on the surface of the support plate (8), the bottom of the fixing ring (10) is fixedly connected to the support plate (8), a rotating shaft (11) is provided on one side of the fixing ring (10), and a buckle (12) is provided on the other side of the fixing ring (10) at a position corresponding to the rotating shaft (11).

4. A toxic gas analysis sampler according to claim 1, characterized in that: The size of the drying slot (16) matches a common U-shaped drying tube and a washing bottle, and the size of the collecting slot (17) matches a 250 ml impact absorption bottle.

5. A toxic gas analysis sampler according to claim 1, characterized in that: The air path assembly comprises an air inlet pipe (18), a conversion valve (19) is fixedly installed at the bottom of the air inlet pipe (18), one end of the conversion valve (19) is fixedly connected to an air outlet pipe (20), the other end of the conversion valve (19) is fixedly connected to an exhaust pipe (21), the output end of the exhaust pipe (21) is threadedly connected to an exhaust fan (22), the output end of the air outlet pipe (20) is fixedly connected to an input end of a detector (23), and the output end of the detector (23) is fixedly connected to an input end of an air pump (24).

6. A toxic gas analysis sampler according to claim 5, characterized in that: The signal input ends of the conversion valve (19), the detector (23) and the air pump (24) are electrically connected to the signal output end of the control terminal (25).

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