Air sampling device

Abstract

The utility model discloses an air sampling device, which relates to the technical field of environment detection, and comprises a synchronous block, the synchronous block is inserted in an operation inner rod, after a handheld assembly is erected, the simultaneous and multi-position / height air suction sampling operation can be realized through four groups of piston assemblies in the handheld assembly, and when sample air is discharged, the synchronous block is inserted into the operation inner rod. The piston assembly at a specific position can be selected according to actual requirements for exhaust detection operation, gas of all the piston assemblies can be exhausted at the same time, the exhaust mode can be selected according to requirements so as to adapt to different detection conditions, and the problems that an existing air sampling device can only sample air in a single area, and the detection efficiency is low are solved. The problems that sampling cannot be carried out at multiple positions / areas at the same time, so that the limitation of a detection result is large, and the accuracy is low are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental detection, and more specifically, particularly relates to an air sampling device. Background Art

[0002] Environmental testing is an operation that conducts detailed site monitoring and analysis of the selected evaluation area. During the environmental testing process, the air in the area needs to be sampled and analyzed, and the air quality status of the area is obtained after subsequent testing.

[0003] As for the existing air sampling devices, they can only sample the air in a single area, and cannot sample in multiple locations / areas at the same time. This leads to large limitations in the detection results and low accuracy. In order to ensure the accuracy of the test results, the existing air sampling devices need to change positions multiple times for sampling. The steps are cumbersome, the use is troublesome, the flexibility is poor, and the practicality is not high. Utility Model Content

[0004] The disclosed embodiment relates to an air sampling device, which has a handheld component and a piston component. After the handheld component is erected, it can realize simultaneous, multi-position / height air suction sampling operations through four groups of piston components inside it. When discharging sample air, the piston component at a specific position can be selected according to actual needs to perform exhaust detection operations, or the gas of all piston components can be discharged at the same time. The discharge method can be selected as needed to adapt to use in different detection situations. It is extremely flexible, adaptable and practical.

[0005] In a first aspect of the present disclosure, an air sampling device is provided, comprising a handheld assembly, the handheld assembly comprising a handheld upright pole and an operating inner pole, the operating inner pole being inserted into the interior of the handheld upright pole; a piston assembly, the piston assembly comprising a pumping piston, a track block and a synchronization block, the piston assembly being provided with four groups, the four groups of piston assemblies being longitudinally arranged inside the handheld upright pole, the number of the piston assemblies being not limited to four groups, and the number thereof can be increased or decreased; the pumping piston being inserted into the interior of the handheld upright pole, and the track block being inserted into the interior of the handheld upright pole, the track block being fixedly mounted at the bottom of the pumping piston, and the synchronization block being inserted into the interior of the operating inner pole.

[0006] In at least some embodiments, a sample cavity is provided inside the handheld pole, and a pumping channel is provided on the top of the sample cavity, and a pumping piston is inserted into the interior of the sample cavity.

[0007] In at least some embodiments, a discharge top spring is provided inside the track block, and two ends of the discharge top spring abut against the inside of the track block and the inside of the handheld pole, respectively.

[0008] In at least some embodiments, a retaining top spring is provided at the bottom of the operating inner rod, and the two ends of the retaining top spring respectively abut against the bottom of the operating inner rod and the inside of the handheld vertical rod, and the elastic force of the retaining top spring is greater than the sum of the elastic forces of all discharge top springs.

[0009] In at least some embodiments, a synchronous top spring is provided on the outside of the synchronous block, and two ends of the synchronous top spring abut against the outer end of the synchronous block and the inside of the operating inner rod respectively.

[0010] In at least some embodiments, the cross-section of the inner end of the synchronization block is a right triangle, and a synchronization groove is provided on the side of the track block. Under the action of the synchronization top spring, when the synchronization block is not pulled by external force, its inner end block is inserted into the interior of the synchronization groove, and when the synchronization block moves downward, the straight edge of the synchronization block and the straight edge of the synchronization groove are engaged.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] After the handheld component is erected, it can realize simultaneous, multi-position / height air suction sampling operations through its internal four groups of piston assemblies. When exhausting the sample air, the piston assembly at a specific position can be selected according to actual needs to perform exhaust detection operations, or the gas of all piston assemblies can be exhausted at the same time. The exhaust method can be selected as needed to adapt to use in different detection situations, which improves the flexibility, adaptability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model in the reset state.

[0015] Figure 3 It is a schematic diagram of the structure of the handheld component of the utility model after being disassembled.

[0016] Figure 4 It is a structural schematic diagram of the track block of the utility model.

[0017] Figure 5 It is a schematic diagram of the structure inside the synchronous block of the utility model when pulling the bottom piston assembly.

[0018] Figure 6 This utility model Figure 5 Schematic diagram of the structure of the subsequent action of the piston assembly.

[0019] Figure 7 It is a schematic diagram of the internal structure when the inner rod of the utility model is pushed and operated.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Handheld assembly; 101. Handheld pole; 1011. Sample chamber; 1012. Pumping channel; 102. Operating inner rod; 1021. Retaining spring;

[0022] 2. Piston assembly; 201. Pumping piston; 202. Track block; 2021. Discharge top spring; 2022. Synchronous groove; 203. Synchronous block; 2031. Synchronous top spring. DETAILED DESCRIPTION

[0023] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0024] As attached Figure 1 To Attachment Figure 7 As shown:

[0025] Embodiment 1: The utility model provides an air sampling device, including a handheld component 1, the handheld component 1 includes a handheld upright pole 101 and an operating inner rod 102, the operating inner rod 102 is inserted into the inside of the handheld upright pole 101; a piston component 2, the piston component 2 includes a pumping piston 201, a track block 202 and a synchronization block 203, the piston component 2 is provided with four groups, the four groups of piston components 2 are longitudinally arranged inside the handheld upright pole 101, the number of piston components 2 is not limited to four groups, and the number can be increased or decreased; the pumping piston 201 is inserted into the inside of the handheld upright pole 101, and the track block 202 is inserted into the inside of the handheld upright pole 101, the track block 202 is fixedly installed at the bottom of the pumping piston 201, and the synchronization block 203 is inserted into the inside of the operating inner rod 102.

[0026] In the disclosed embodiment, a sample chamber 1011 is provided inside the handheld pole 101, and a pumping channel 1012 is provided at the top of the sample chamber 1011. The pumping piston 201 is inserted into the sample chamber 1011, and the sample chamber 1011 can store the drawn air sample.

[0027] In the embodiment of the present disclosure, a discharge top spring 2021 is provided inside the track block 202, and the two ends of the discharge top spring 2021 are respectively against the inside of the track block 202 and the inside of the handheld upright 101. In use, before sampling, it is necessary to discharge the internal gas of all sample cavities 1011 inside the handheld component 1 to ensure the purity of the air used subsequently. When the handheld component 1 is in the reset state, the inner rod 102 is operated to be in the lowest use position under the action of the holding top spring 1021. The operation of the inner rod 102 can be achieved by pushing the inner rod 102 inward to discharge the internal gas of all sample cavities 1011. When the inner rod 102 is pushed upward, the holding top spring 1021 can be compressed, and the synchronization block 203 can move upward synchronously with the operation inner rod 102, thereby releasing the limiting relationship of the synchronization groove 2022 of the synchronization block 203 on the track block 202. Thereafter, under the action of the discharge top spring 2021, the track block 202 and the pumping piston 201 will move upward to discharge the gas inside the sample cavity 1011 for subsequent sampling operations.

[0028] In the embodiment of the present disclosure, a retaining top spring 1021 is provided at the bottom of the operating inner rod 102, and the two ends of the retaining top spring 1021 are respectively against the bottom of the operating inner rod 102 and the inside of the handheld vertical rod 101, and the elastic force of the retaining top spring 1021 is greater than the sum of the elastic forces of all the discharge top springs 2021. In use, after the internal gas of all the sample cavities 1011 in the handheld component 1 is discharged, the handheld component 1 can realize automatic, simultaneous, and multi-position air sampling operation after the operating inner rod 102 is released. After the operating inner rod 102 is released, it will move downward under the action of the retaining top spring 1021. When the operating inner rod 102 moves downward, the synchronization block 203 can move along with the operating inner rod 102. The synchronization block 203 will drive the track block 202 and the pumping piston 201 to move downward synchronously and compress the discharge top spring 2021 under the clamping action of the straight edge of the synchronization groove 2022, so as to draw the external air into the sample chamber 1011 through the pumping channel 1012 for storage. When the operating inner rod 102 moves downward, all the piston assemblies 2 will perform the above action, thereby realizing automated, simultaneous, multi-position air sampling operation, which is convenient and flexible to use and has high sample comprehensiveness.

[0029] In the embodiment of the present disclosure, a synchronization top spring 2031 is provided on the outside of the synchronization block 203, and the two ends of the synchronization top spring 2031 are respectively against the outer end of the synchronization block 203 and the inside of the operating inner rod 102, the inner end cross-section of the synchronization block 203 is a right triangle, and the side of the track block 202 is provided with a synchronization groove 2022. Under the action of the synchronization top spring 2031, when the synchronization block 203 is not pulled by an external force, its inner end block body is inserted into the inside of the synchronization groove 2022, and when the synchronization block 203 moves downward, the straight edge of the block body of the synchronization block 203 and the straight edge of the groove body of the synchronization groove 2022 are clamped. In use, after the sampling is completed, when it is necessary to discharge When the air inside a single sample cavity 1011 is to be detected, it is only necessary to pull the synchronization block 203 at the corresponding position. When the synchronization block 203 is pulled, the synchronization top spring 2031 will be compressed, and the synchronization block 203 will be disengaged from the synchronization groove 2022 to release the limiting relationship of the synchronization block 203 to the track block 202. Thereafter, the track block 202 of the piston assembly 2 at this position will discharge the extracted air inside for detection under the action of the discharge top spring 2021. It is easy to use. If it is necessary to discharge the air inside all sample cavities 1011 for detection, it is only necessary to push the inner rod 102. It is easy to operate, and the sampling and detection operations are fast.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present invention, before sampling, it is necessary to discharge all the internal gases of the sample chamber 1011 in the handheld component 1 to ensure the purity of the air used subsequently. When the handheld component 1 is in the reset state, the inner rod 102 is operated to be in the lowest use position under the action of the top spring 1021. The operation of the inner rod 102 is pushed inward to discharge all the internal gases of the sample chamber 1011. When the inner rod 102 is pushed upward, the top spring 1021 can be compressed, and the synchronization block 203 can move upward synchronously with the operation inner rod 102, thereby releasing the synchronization groove 2022 of the synchronization block 203. The limiting relationship of the track block 202, thereafter, under the action of the discharge top spring 2021, the track block 202 and the pumping piston 201 will move upward to discharge the gas in the sample chamber 1011. When the gas in all the sample chambers 1011 in the handheld component 1 is discharged, the handheld component 1 can realize automatic, simultaneous, and multi-position air sampling operation after the operating inner rod 102 is released. After the operating inner rod 102 is released, it will move downward under the action of the holding top spring 1021. When the operating inner rod 102 moves downward, the synchronization block 203 can follow the movement of the operating inner rod 102. 3 will drive the track block 202 and the pumping piston 201 to move downward synchronously and compress the discharge top spring 2021 under the action of the clamping connection with the straight edge of the synchronous groove 2022, so as to pump the external air into the sample chamber 1011 through the pumping channel 1012 for storage, and when the inner rod 102 moves downward, all the piston assemblies 2 will perform the above action, thereby realizing the automatic, simultaneous, multi-position air sampling operation. After the sampling is completed, the pumping channel 1012 at the corresponding position is connected to the detection equipment through a hose, and the air inside the sample chamber 1011 at the position is discharged for detection. When it is necessary to discharge the air inside a single sample cavity 1011 for detection, it is only necessary to pull the synchronization block 203 at the corresponding position. When the synchronization block 203 is pulled, the synchronization top spring 2031 will be compressed, and the synchronization block 203 will be disengaged from the synchronization groove 2022 to release the limiting relationship of the synchronization block 203 to the track block 202. Thereafter, the track block 202 of the piston assembly 2 at this position will discharge the extracted air inside for detection under the action of the discharge top spring 2021. It is easy to use. If it is necessary to discharge the air inside all sample cavities 1011 for detection, it is only necessary to push the inner rod 102.

[0032] In this article, there are a few points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An air sampling device, characterized in that: include: A handheld assembly, the handheld assembly comprising a handheld upright pole and an operating inner pole, the operating inner pole being inserted into the interior of the handheld upright pole; A piston assembly, the piston assembly includes a pumping piston, a track block and a synchronization block. The piston assembly is provided with four groups, and the four groups of piston assemblies are longitudinally arranged inside the handheld pole. The number of piston assemblies is greater than or less than four groups; the pumping piston is inserted into the inside of the handheld pole, and the track block is inserted into the inside of the handheld pole, the track block is fixedly installed at the bottom of the pumping piston, and the synchronization block is inserted into the inside of the operating inner rod.

2. An air sampling device as claimed in claim 1, characterized in that: A sample cavity is arranged inside the hand-held upright rod, and a pumping channel is arranged on the top of the sample cavity, and a pumping piston is inserted into the sample cavity.

3. An air sampling device as claimed in claim 2, characterized in that: A discharge top spring is arranged inside the track block, and two ends of the discharge top spring respectively abut against the inside of the track block and the inside of the handheld upright pole.

4. An air sampling device as claimed in claim 3, characterized in that: A retaining top spring is provided at the bottom of the operating inner rod, and the two ends of the retaining top spring respectively abut against the bottom of the operating inner rod and the inside of the handheld vertical rod, and the elastic force of the retaining top spring is greater than the sum of the elastic forces of all discharge top springs.

5. An air sampling device as claimed in claim 4, characterized in that: A synchronous top spring is arranged outside the synchronous block, and two ends of the synchronous top spring are respectively against the outer end of the synchronous block and the inside of the operating inner rod.

6. An air sampling device as claimed in claim 5, characterized in that: The inner end cross-section of the synchronization block is a right triangle, and a synchronization groove is provided on the side of the track block. Under the action of the synchronization top spring, when the synchronization block is not pulled by external force, its inner end block is inserted into the synchronization groove, and when the synchronization block moves downward, the straight edge of the synchronization block and the straight edge of the synchronization groove are clamped.

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