Gas sampling device for environmental protection detection

Abstract

The utility model discloses a gas sampling device for environmental protection detection, which comprises a base, a telescopic tube is arranged on the base, a fixing plate is arranged at one end of the telescopic tube, a sampling tube is arranged on the fixing plate, a driving mechanism is arranged on the outer wall of the base, and a gas outlet is formed in the outer wall of the base. And one end of the driving mechanism is fixedly connected with the outer wall of the lower side of the fixing plate. When in use, the tube body of the sampling tube is kept in a state that air can circulate, the telescopic tube is driven to extend by the driving mechanism, so that air enters the telescopic tube, and after reciprocating for several times, gas in the telescopic tube is fully exchanged and sampled gas fully enters along with repeated entering and exiting of airflow, so that sampling is completed; the sampling pipe can be closed through the control valve, so that the end of the sampling pipe is in a sealed state, air flow is prevented from entering the sampling pipe, and the telescopic pipe is driven to move to a laboratory for detection in a moving manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas sampling technical field, concretely relates to a gas sampling device for environmental protection detection. BACKGROUND

[0002] The factory waste gas is discharged into the atmosphere and pollutes the air, these substances enter the human body through different ways of respiratory tract, some directly produce harm, some have accumulation effect, and can more seriously harm the health of human.

[0003] The application number: CN202321714820.8 discloses a kind of gas sampling device for environmental protection detection, solve the problem of inaccurate detection result caused by dilution of collected gas.But in actual use, the state of gas entry or discharge cannot be estimated when sampling, and the gas flow direction when gas sampling cannot be embodied, leading to the effect of sampling can not be ideal, the result of sampling cannot be understood, leading to the problem of undesirable detection effect.

[0004] Therefore, the above technical problems should be improved to improve the effect of gas detection. SUMMARY

[0005] The utility model discloses a kind of gas sampling device for environmental protection detection, to solve the problem that the state of gas entry or discharge cannot be estimated when sampling, possibly leading to undesirable sampling effect.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of gas sampling device for environmental protection detection, including base, the upper of the base is provided with telescopic pipe, one end of the telescopic pipe is provided with fixed plate, the fixed plate is provided with sampling tube, the outer wall of the base is provided with drive mechanism, one end of the drive mechanism is fixedly connected with the outer wall of the lower side of the fixed plate;The drive mechanism includes screw seat, threaded rod and drive motor, the base is provided with notch, the screw seat is rotatably installed in the notch, one end of the screw seat is fixedly connected with the output end of the drive motor, and the drive motor is fixedly installed on the base.

[0007] Preferably, the outer wall of the lower side of the fixed plate is provided with inverted slide rod, the base is provided with inverted slide groove, and the inverted slide rod is slidably installed in the inverted slide groove.

[0008] Preferably, the outer wall of the upper side of the base is provided with mounting port, one end of the telescopic pipe is fixedly connected with the inner wall of the mounting port, the mounting port is provided with protruding block, the protruding block is movably connected with the inner wall of the telescopic pipe and the inner wall of the lower side of the fixed plate.

[0009] Preferably, the sampling pipe is connected with an air outlet pipe, one end of the air outlet pipe is fixedly installed on the outer wall of the sampling pipe, and the one end of the air outlet pipe is provided with a sealing plug.

[0010] Preferably, a control valve is arranged at the port of the sampling pipe, the outer wall of the upper side of the fixed plate is provided with a support rod, and one end of the support rod is fixedly connected with the outer wall of the sampling pipe.

[0011] Preferably, an air inlet head is arranged at the port of the sampling pipe, and a rotating blade is rotatably installed on the air inlet head.

[0012] The technical effects and advantages of the utility model are as follows: in use, the pipe body of the sampling pipe is kept in an air flow state, the telescopic pipe is extended by the driving mechanism, air enters the telescopic pipe, and after reciprocating several times, the gas in the telescopic pipe is fully exchanged, the sampled gas fully enters, sampling is completed, the sampling pipe can be closed by the control valve, the end of the sampling pipe is in a sealed state, air flow is blocked, the telescopic pipe is displaced to the laboratory for detection by the moving mode, during detection, the test tube or other mode is placed at the end of the air outlet pipe for step-by-step sampling, the telescopic pipe is retracted by the driving mechanism, the gas is gradually discharged from the air outlet pipe, sampling is realized, and the operation is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a base section structure schematic view of the utility model;

[0015] Figure 3 It is an initial state schematic view of the utility model.

[0016] In the drawing: 1, base; 2, telescopic pipe; 3, fixed plate; 4, air inlet head; 5, sampling pipe; 6, mounting port; 7, driving mechanism; 8, threaded seat; 9, threaded rod; 10, driving motor; 11, slot; 12, reverse slide rod; 13, reverse slide groove; 14, air outlet pipe; 15, sealing plug; 16, control valve; 17, support rod; 18, lug; 19, rotating blade. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] The utility model provides a gas sampling device for environmental protection detection as Figures 1-3 The utility model provides a gas sampling device for environmental protection detection as The outer wall of the base 1 is provided with a drive mechanism 7, one end of the drive mechanism 7 is fixedly connected with the outer wall of the lower side of the fixed plate 3. The outer wall of the upper side of the base 1 is provided with a mounting port 6, one end of the telescopic pipe 2 is fixedly connected with the inner wall of the mounting port 6, the mounting port 6 is provided with a protruding block 18, the protruding block 18 is movably connected with the inner wall of the telescopic pipe 2 and the inner wall of the lower side of the fixed plate 3. In use, keep the pipe body of the sampling pipe 5 in the state of circulating air, drive the telescopic pipe 2 to extend through the drive mechanism 7, then make the inside of the telescopic pipe 2 enter air, and after reciprocating several times, make the gas in the inside of the telescopic pipe 2 fully exchange, the sampled gas fully enters, complete sampling, at this time, the end of the sampling pipe 5 is in the sealed state through the control valve 16, block the air flow from entering, and through the moving mode, drive the telescopic pipe 2 to displace to the laboratory for detection, when detecting, can place a test tube or other mode for step sampling through the end of the air outlet pipe 14, make the gas gradually discharge from the air outlet pipe 14 through the drive mechanism 7 to retract the telescopic pipe 2, realize the sampling, drive the threaded rod 9 to retract through the drive motor 10, the single-trip threaded rod 9 makes the gas in the inside of the telescopic pipe 2 reduce the mixing with external gas, avoid the problem that the detection data is inaccurate due to the dilution or pollution of the sampling gas.

[0019] Specifically, the drive mechanism 7 includes a threaded seat 8, a threaded rod 9 and a drive motor 10, the base 1 is provided with a slot 11, the threaded seat 8 is rotatably installed in the slot 11, one end of the threaded seat 8 is fixedly connected with the output end of the drive motor 10, and the drive motor 10 is fixedly installed on the base 1. The outer wall of the lower side of the fixed plate 3 is provided with an inverted slide rod 12, the base 1 is provided with an inverted slide groove 13, and the inverted slide rod 12 is slidably installed in the inverted slide groove 13. Figure 2As shown, when the driving motor 10 drives the threaded seat 8 in the slot 11 to rotate, the threaded rod 9 will be driven to rise gradually. At this time, the telescopic tube 2 will be extended upward until the telescopic tube 2 is at the maximum extension distance at the highest position. The driving motor 10 runs in the reverse direction, so that the threaded seat 8 drives the threaded rod 9 to retract, thereby driving the telescopic tube 2 to contract inward and discharge the internal gas. This reciprocating process can fully collect the sampled gas inside the telescopic tube 2, and the telescopic tube 2 remains in an extended state, thereby completing the sampling. After sampling, the port of the sampling tube 5 can be closed by the control valve 16 to avoid To prevent the gas inside the telescopic tube 2 from mixing with the external gas during transportation, which would cause inaccurate test data, and when performing sampling, the sealing plug 15 can be opened and the driving mechanism 7 can be cooperated to discharge the gas through the port of the gas outlet pipe 14, and the sampling can be performed at the port of the gas outlet pipe 14. After the threaded rod 9 is fully retracted, the driving mechanism 7 stops running, and the sampling of the sampled gas is completed manually for testing. A protrusion 18 is provided in the mounting port 6, so that after the telescopic tube 2 is fully retracted, the protrusion 18 touches the inner wall of the telescopic tube 2, thereby reducing the trapped gas and making full use of the sampled gas.

[0020] Specifically, the sampling tube 5 is connected to an air outlet pipe 14, one end of which is fixedly mounted on the outer wall of the sampling tube 5, and a sealing plug 15 is provided at one end of the air outlet pipe 14. A control valve 16 is provided at the port of the sampling tube 5, and a support rod 17 is provided on the outer wall of the upper side of the fixing plate 3, and one end of the support rod 17 is fixedly connected to the outer wall of the sampling tube 5. An air inlet head 4 is provided at the port of the sampling tube 5, and a rotating blade 19 is rotatably mounted on the air inlet head 4. Please refer to the attached Figure 1 As shown, the sampling tube 5 and the outlet pipe 14 are in a tree branch Y shape, and a support rod 17 is provided between the sampling tube 5, the outlet pipe 14 and the cover plate to maintain the stability of the sampling tube 5 and the outlet pipe 14. A control valve 16 is provided on the sampling tube 5 to achieve the purpose of controlling the inflow and outflow and storage of airflow. A sealing plug 15 is provided on the outlet pipe 14 to facilitate the control of gas sampling. When sampling, the air inlet head 4 will drive the rotating blade 19 to rotate as the airflow enters or discharges, thereby achieving the purpose of visualizing the airflow direction.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas sampling device for environmental detection, characterized by: The invention comprises a base (1), a telescopic tube (2) is provided on the base (1), a fixing plate (3) is provided at one end of the telescopic tube (2), a sampling tube (5) is provided on the fixing plate (3), a driving mechanism (7) is provided on the outer wall of the base (1), and one end of the driving mechanism (7) is fixedly connected to the outer wall of the lower side of the fixing plate (3); The driving mechanism (7) comprises a threaded seat (8), a threaded rod (9) and a driving motor (10); a notch (11) is provided on the base (1); the threaded seat (8) is rotatably mounted in the notch (11); one end of the threaded seat (8) is fixedly connected to the output end of the driving motor (10); and the driving motor (10) is fixedly mounted on the base (1).

2. A gas sampling device for environmental detection according to claim 1, characterized in that: The outer wall of the lower side of the fixed plate (3) is provided with a reverse sliding rod (12), and the base (1) is provided with a reverse sliding groove (13), and the reverse sliding rod (12) is slidably installed in the reverse sliding groove (13).

3. A gas sampling device for environmental detection according to claim 2, characterized in that: An installation opening (6) is provided on the outer wall of the upper side of the base (1), one end of the telescopic tube (2) is fixedly connected to the inner wall of the installation opening (6), a protrusion (18) is provided in the installation opening (6), and the protrusion (18) is movably connected to the inner wall of the telescopic tube (2) and the inner wall of the lower side of the fixed plate (3).

4. A gas sampling device for environmental detection according to claim 1, characterized in that: The sampling tube (5) is connected to an air outlet pipe (14), one end of the air outlet pipe (14) is fixedly mounted on the outer wall of the sampling tube (5), and one end of the air outlet pipe (14) is provided with a sealing plug (15).

5. A gas sampling device for environmental detection according to claim 4, characterized in that: A control valve (16) is provided at the port of the sampling tube (5), and a support rod (17) is provided on the outer wall of the upper side of the fixing plate (3), with one end of the support rod (17) fixedly connected to the outer wall of the sampling tube (5).

6. A gas sampling device for environmental detection according to claim 1, characterized in that: An air inlet head (4) is provided at the port of the sampling tube (5), and a rotating blade (19) is rotatably mounted on the air inlet head (4).

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