Auxiliary device for indoor air sampling

Abstract

The utility model provides an auxiliary device for indoor air sampling, comprising a suction cup, a support rod, a fixing clamp and a calibrator; the suction cup is made of rubber material and is adsorbed on the surface of the sampler by pressure; the support rod is located on the suction cup and fixedly connected to the suction cup; the fixing clamp is located at the upper end of the support rod and is connected to the support rod; the calibrator is located on the fixing clamp and is fixedly connected to the fixing clamp. The utility model provides an auxiliary device for indoor air sampling, which uses a suction cup to adsorb the auxiliary device on a sampler or an experimental platform, and then clamps the adsorption tube and the air port of the sampler by the fixing clamp, and then adjusts the support rod to keep it in a vertical direction, loosens the fixing clamp by the locking nut, rotates its angle until the calibrator is perpendicular to the ground, so that the fixing clamp and the equipment clamped by it are in a vertical state, and then the locking nut is locked to maintain the position for sampling, thereby improving the accuracy of the experiment and reducing the complexity of manual operation.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for indoor air sampling. Background Art

[0002] Referring to GB50325-2020 "Standard for Indoor Environmental Pollution Control of Civil Building Engineering", when testing indoor environmental pollutants such as TVOC, benzene, toluene, and xylene, it is necessary to use 2,6-p-phenyl diphenyl ether porous polymer-graphitized carbon black-X composite adsorption tubes or Tenax-TA adsorption tubes and activated carbon adsorption tubes for sampling.

[0003] The specification requires that the adsorption tube be connected vertically to the air inlet of the air sampler. This will cause the following problems on the existing sampling equipment: (1) The equipment cannot accurately control the direction of the adsorption tube.

[0004] (2) The orientation of the adsorption tube is unstable and can easily change during the sampling process.

[0005] (3) It is not possible to maintain the same orientation during multiple measurements, and the repeatability is not strong. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an auxiliary device for indoor air sampling, aiming to use a simple structure to determine the direction of the adsorption tube, and at the same time use a calibrator on the device to judge and modify the precise position of the adsorption tube, thereby improving detection accuracy and reducing operational difficulty.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: an auxiliary device for indoor air sampling, including a suction cup, a support rod, a fixing clamp and a calibrator; the suction cup is made of rubber material and is adsorbed on the surface of the sampler by pressure; the support rod is located on the suction cup and is fixedly connected to the suction cup; the fixing clamp is located at the upper end of the support rod and is connected to the support rod; the calibrator is located on the fixing clamp and is fixedly connected to the fixing clamp.

[0008] Furthermore, the fixing clamp is provided with a rotating shaft, and is hingedly connected to the support rod via the rotating shaft, so that the fixing clamp rotates around the support rod.

[0009] Furthermore, the calibration instrument adopts a laser angle meter, which is fixed on one side of the fixing clamp and faces vertically downward.

[0010] Furthermore, the support rod is made of soft metal material to achieve rotation at any angle in space.

[0011] Furthermore, the suction cup is made of rubber material and can be adsorbed on the platform in the laboratory through pressure.

[0012] Furthermore, a locking nut is provided on one side of the fixing clamp, and the locking nut is connected to the fixing clamp and is used to lock or loosen the fixing clamp so that it is fixed or rotated on the support rod.

[0013] Compared with the prior art, the utility model provides an auxiliary device for indoor air sampling, which uses a suction cup to adsorb the auxiliary device on a sampler or an experimental platform, and then clamps the adsorption tube and the air port of the sampler through a fixing clamp, and then adjusts the support rod to keep it in a vertical direction, and then loosens the fixing clamp through a locking nut, rotates its angle until the calibrator is perpendicular to the ground, so that the fixing clamp and the equipment clamped by it are in a vertical state, and then locks the locking nut to maintain the position for sampling, thereby improving the accuracy of the experiment and reducing the complexity of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The schematic diagram of the structure of the utility model is shown.

[0015] Among them: 1. Suction cup, 2. Support rod, 3. Fixing clamp, 4. Calibrator, 5. Rotating shaft, 6. Locking nut, 7. Sampler, 8. Inlet pipe, 9. Adsorption tube. DETAILED DESCRIPTION

[0016] As shown in the figure, an auxiliary device for indoor air sampling includes a suction cup 1, a support rod 2, a fixing clamp 3 and a calibrator 4; the suction cup 1 is made of rubber material and is adsorbed on the surface of the sampler 7 by pressure; the support rod 2 is located on the suction cup 1 and is fixedly connected to the suction cup 1; the fixing clamp 3 is located at the upper end of the support rod 2 and is connected to the support rod 2; the calibrator 4 is located on the fixing clamp 3 and is fixedly connected to the fixing clamp 3.

[0017] Furthermore, the fixing clamp 3 is provided with a rotating shaft 5 , which is hingedly connected to the support rod 2 via the rotating shaft 5 , so that the fixing clamp 3 rotates around the support rod 2 .

[0018] Furthermore, the calibration instrument 4 adopts a laser angle meter, which is fixed on one side of the fixing clamp 3 and faces vertically downward.

[0019] Furthermore, the support rod 2 is made of soft metal material to achieve rotation at any angle in space.

[0020] Furthermore, the suction cup 1 is made of rubber material and can be adsorbed on the platform in the laboratory through pressure.

[0021] Furthermore, a locking nut 6 is provided on one side of the fixing clamp 3 , and the locking nut 6 is connected to the fixing clamp 3 and is used to lock or loosen the fixing clamp 3 so that it is fixed or rotated on the support rod 2 .

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than a restrictive technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution should be included in the scope of the claims of the utility model.

Claims

1. An auxiliary device for indoor air sampling, characterized in that: It includes a suction cup, a support rod, a fixing clamp and a calibrator; the suction cup is made of rubber material and is adsorbed on the surface of the sampler by pressure; the support rod is located on the suction cup and is fixedly connected to the suction cup; the fixing clamp is located at the upper end of the support rod and is connected to the support rod; the calibrator is located on the fixing clamp and is fixedly connected to the fixing clamp.

2. An auxiliary device for indoor air sampling according to claim 1, characterized in that: The fixing clamp is provided with a rotating shaft, and is hingedly connected to the supporting rod via the rotating shaft, so that the fixing clamp rotates around the supporting rod.

3. An auxiliary device for indoor air sampling according to claim 1, characterized in that: The calibration instrument adopts a laser angle meter, which is fixed on one side of the fixing clamp and faces vertically downward.

4. The auxiliary device for indoor air sampling according to claim 1, characterized in that: The support rod is made of soft metal material and can be rotated at any angle in space.

5. The auxiliary device for indoor air sampling according to claim 1, characterized in that: The suction cup is made of rubber material and can be adsorbed on the platform in the laboratory through pressure.

6. The auxiliary device for indoor air sampling according to claim 1, characterized in that: A locking nut is provided on one side of the fixing clamp, and the locking nut is connected to the fixing clamp and is used to lock or loosen the fixing clamp so that it is fixed or rotated on the support rod.

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