CN220188149U - Sampling equipment for gaseous sample for environment detection - Google Patents

Abstract

The utility model relates to the technical field of environment gaseous state detection equipment, and discloses a gaseous state sample sampling equipment for environment detection, which comprises a servo motor, wherein an automatic lifting mechanism is arranged at the output end of the servo motor, the automatic lifting mechanism comprises a reciprocating screw rod, the reciprocating screw rod is cylindrical, the bottom of the reciprocating screw rod is fixedly connected with the output end of the servo motor, a lifting clamping sleeve is movably arranged on the outer wall of the reciprocating screw rod, a movable clamping block is movably arranged in the lifting clamping sleeve, and the automatic lifting mechanism is arranged to enable a sampled multidirectional air suction head to reciprocate up and down, so that the multidirectional air suction head is convenient to sample air in all directions, the diversity of the gaseous state samples is improved, the detection precision is improved, and the condition that the detection result of the gaseous state sample accords with the current environment detection is ensured.

Description

A sampling device for gaseous samples for environmental testing

Technical field

The utility model relates to the technical field of environmental gas detection equipment, and in particular to a gas sample sampling equipment for environmental detection.

Background technique

The process of collecting samples of pollutants in the atmosphere or samples of contaminated air. There are two types of collection methods: one is to pass a large amount of air through a liquid absorbent or solid adsorbent to enrich pollutants with lower concentrations in the atmosphere, such as air extraction method and membrane filter method. The other type uses containers (glass bottles, plastic bags, etc.) to collect air containing pollutants. The former measures the average concentration of pollutants in the atmosphere during the sampling time; the latter measures the instantaneous concentration or the average concentration within a short period of time. The method of sampling should be determined according to the purpose of sampling and the site conditions. The samples sampled should be representative. The sampling efficiency must be high, the operation must be simple, and subsequent analysis and measurement must be convenient to obtain reliable basic data on gas pollution.

However, the existing sampling equipment for gaseous samples for environmental testing can generally only sample gases on one horizontal plane. Due to the different weights of various impurities and pollutants and gases in the air, the air is distributed in a high and low state. Sampling at the same height will cause Inaccurate measurement results may occur.

Therefore, the technical problem to be solved by this utility model is how to improve the sampling effect of the gas sample sampling equipment to improve the accuracy of gas sample measurement.

To this end, we propose a sampling device for gaseous samples for environmental testing.

Utility model content

The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a sampling device for gaseous samples for environmental detection.

In order to achieve the above purpose, the present utility model adopts the following technical solution. A sampling device for gaseous samples for environmental detection, including a servo motor. The output end of the servo motor is provided with an automatic lifting mechanism. The automatic lifting mechanism includes a reciprocating screw rod. , the reciprocating screw is cylindrical, and the bottom of the reciprocating screw is fixedly connected to the output end of the servo motor. A lifting card sleeve is movably installed on the outer wall of the reciprocating screw, and a movable clamping block is movably installed inside the lifting card sleeve.

Preferably, the outer wall of the reciprocating screw rod is provided with a reciprocating thread groove, and the movable clamping block is movably connected with the reciprocating thread groove, and a multi-directional air extraction head is fixedly installed on the right side wall of the lifting ferrule.

Preferably, a connecting metal pipe is fixedly installed on the left side wall of the lifting ferrule, and the connecting metal pipe is in the shape of a circular tube.

Preferably, an exhaust hose is fixedly installed on the left side wall of the connecting metal pipe.

Preferably, a limited movable wheel is movably installed on the middle end of the outer wall of the connecting metal pipe, and the limited movable wheel is in the shape of a roller.

Preferably, a limiting bracket is movably installed on the outer wall of the limiting movable wheel, and the limiting bracket is N-shaped.

Preferably, the bottom of the limiting bracket is fixedly connected to the top left side of the servo motor.

Preferably, the inner wall of the limiting bracket is provided with a limiting slot, and the limiting slot is rectangular.

Preferably, the outer wall of the limiting movable wheel is movably connected to the limiting slot.

beneficial effects

The utility model provides a gaseous sample sampling device for environmental detection. It has the following beneficial effects:

(1) This gaseous sample sampling equipment for environmental testing is equipped with an automatic lifting mechanism. The automatic lifting mechanism can reciprocate the multi-directional air extraction head for sampling up and down, which facilitates the multi-directional air extraction head to fully conduct air sampling. Azimuth sampling not only improves the diversity of gaseous samples and improves detection accuracy, but also ensures that gaseous sample detection results conform to the current environmental testing conditions.

(2) This gaseous sample sampling equipment for environmental testing is provided with a limit bracket, a limit slot and a limit movable wheel. The limit bracket limits the multi-directional air extraction head through the limit slot. The up and down reciprocating movement in the limit slot ensures that the entire device is more stable when moving up and down, improving the stability and service life of the entire device.

(3) This kind of gaseous sample sampling equipment for environmental testing is equipped with a multi-directional air extraction head. The multi-directional air extraction head adopts the setting of a multi-directional air extraction head and uses multiple air extraction holes to conduct all-round analysis of the air. Sampling further improves the accuracy of gaseous sample detection.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic structural diagram of the reciprocating screw rod of the present utility model;

Figure 3 is a schematic diagram of the internal structure of the limiting bracket of the present invention.

Legend: 10. Servo motor; 11. Reciprocating screw rod; 12. Lifting ferrule; 13. Movable clamp block; 14. Reciprocating thread groove; 15. Multi-directional air extraction head; 16. Connecting metal pipe; 17. Air extraction Hose; 18. Limit bracket; 24. Limit slot; 25. Limit movable wheel.

Detailed ways

Embodiment 1: A sampling device for gaseous samples for environmental testing, as shown in Figure 1, including a servo motor 10. The output end of the servo motor 10 is provided with an automatic lifting mechanism. The automatic lifting mechanism includes a reciprocating screw 11, a reciprocating wire. The rod 11 is cylindrical, and the bottom of the reciprocating screw rod 11 is fixedly connected to the output end of the servo motor 10. A lifting clamp sleeve 12 is movably installed on the outer wall of the reciprocating screw rod 11, and a movable clamping block 13 is movably installed on the inner wall of the lifting clamp sleeve 12. , a multi-directional air extraction head 15 is fixedly installed on the right side wall of the lifting ferrule 12, and a connecting metal pipe 16 is fixedly installed on the left side wall of the lifting ferrule 12. The connecting metal pipe 16 is in the shape of a circular tube, and the left side of the connecting metal pipe 16 An air extraction hose 17 is fixedly installed on the wall. An automatic lifting mechanism is provided. The automatic lifting mechanism can reciprocate the multi-directional air extraction head 15 for sampling up and down, making it convenient for the multi-directional air extraction head 15 to sample the air in all directions. It not only improves the diversity of gaseous samples and improves the detection accuracy, but also ensures that the gaseous sample detection results are in line with the current environmental testing conditions.

Embodiment 2: Based on Embodiment 1, as shown in Figure 2, the outer wall of the reciprocating screw rod 11 is provided with a reciprocating thread groove 14, and the movable clamping block 13 is movably connected to the reciprocating thread groove 14, and a limiting bracket is provided. 18. The limit card slot 24 and the limit movable wheel 25. The limit bracket 18 limits the multi-directional air extraction head 15 to move up and down in the limit card slot 24 through the limit card slot 24, which can ensure that the entire equipment moves up and down. It is more stable when moving back and forth, improving the stability and service life of the entire device.

Embodiment 3: On the basis of Embodiment 1 and Embodiment 2, as shown in Figure 3, a limited movable wheel 25 is movably installed on the middle end of the outer wall of the connecting metal pipe 16. The limited movable wheel 25 is in the shape of a roller, and the limited movable wheel 25 is movable. A limit bracket 18 is movably installed on the outer wall of the wheel 25. The limit bracket 18 is N-shaped, and the bottom of the limit bracket 18 is fixedly connected to the top left side of the servo motor 10. A limit slot 24 is provided on the inner wall of the limit bracket 18. The limit slot 24 is rectangular, and the outer wall of the limit movable wheel 25 is movably connected to the limit slot 24. A multi-directional air extraction head 15 is provided. The multi-directional air extraction head 15 adopts the setting of the multi-directional air extraction head 15. , using multiple air extraction holes to sample the air in an all-round way, further improving the accuracy of gaseous sample detection.

The working principle of the utility model: by placing the device on the ground and turning on the switch of the servo motor 10, the output end of the servo motor 10 drives the reciprocating screw 11 to start rotating, and the reciprocating screw 11 drives the movable card through the reciprocating thread groove 14 The block 13 moves up and down, and the movable block 13 drives the multi-directional air extraction head 15 to move up and down through the lifting card sleeve 12. By opening the air extraction device of the sampling equipment, the air extraction device passes through the air extraction hose 17, connecting metal pipe 16, The lifting card sleeve 12 and the multi-directional air extraction head 15 draw air at different heights into the sampling bag, so that the air can be sampled and tested in an all-round way, which improves the diversity and detection accuracy of gaseous samples. At the same time, the limit bracket 18 passes the limit The position card slot 24 restricts the limit movable wheel 25 to move up and down in the limit card slot 24, which can ensure that the entire device is more stable when it moves up and down, and improves the stability and service life of the entire device.

The basic principles and main features of the present utility model and the advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the present utility model is defined by the appended claims and their equivalents.

Claims (9)

1. A sampling device for gaseous samples for environmental testing, including a servo motor (10), characterized in that: the output end of the servo motor (10) is provided with an automatic lifting mechanism, and the automatic lifting mechanism includes a reciprocating screw (11 ), the reciprocating screw rod (11) is cylindrical, and the bottom of the reciprocating screw rod (11) is fixedly connected to the output end of the servo motor (10). A lifting ferrule (12) is movably installed on the outer wall of the reciprocating screw rod (11). , a movable clamping block (13) is installed inside the lifting clamp sleeve (12). 2. The gaseous sample sampling equipment for environmental testing according to claim 1, characterized in that: the outer wall of the reciprocating screw (11) is provided with a reciprocating thread groove (14), and the movable clamping block (13) is connected to the reciprocating threaded groove (14). The threaded groove (14) is movably connected, and a multi-directional air extraction head (15) is fixedly installed on the right wall of the lifting ferrule (12). 3. The gaseous sample sampling equipment for environmental testing according to claim 1, characterized in that: a connecting metal pipe (16) is fixedly installed on the left wall of the lifting ferrule (12), and the connecting metal pipe (16) Round tube shape. 4. The gaseous sample sampling equipment for environmental detection according to claim 3, characterized in that: a suction hose (17) is fixedly installed on the left side wall of the connecting metal pipe (16). 5. The sampling equipment for gaseous samples for environmental testing according to claim 4, characterized in that: a limited movable wheel (25) is movably installed at the middle end of the outer wall of the connecting metal pipe (16), and the limited movable wheel (25) ) is in the shape of a roller. 6. The gaseous sample sampling equipment for environmental testing according to claim 5, characterized in that: a limit bracket (18) is movably installed on the outer wall of the limit movable wheel (25), and the limit bracket (18) is in the shape of N. shape. 7. The gaseous sample sampling device for environmental detection according to claim 6, characterized in that: the bottom of the limit bracket (18) is fixedly connected to the top left side of the servo motor (10). 8. The gaseous sample sampling equipment for environmental testing according to claim 7, characterized in that: the inner wall of the limit bracket (18) is provided with a limit slot (24), and the limit slot (24) is rectangular. . 9. The gas sample sampling device for environmental detection according to claim 5, characterized in that: the outer wall of the limit movable wheel (25) is movably connected to the limit slot (24).