Atmospheric pollutant sampling head

Abstract

The utility model discloses an atmospheric pollutant sampling head which comprises a sampling box, a conveying pipe, a filtering belt, a filtering mechanism and a fixing mechanism, the sampling box is provided with an air inlet, the conveying pipe is communicated with the sampling box, the filtering belt is arranged in the sampling box, the filtering mechanism is arranged in the sampling box and used for replacing filtering specifications according to different environments, and the fixing mechanism is arranged in the sampling box. The fixing mechanism is arranged in the sampling box and used for fixing the filtering belt, the filtering mechanism comprises a flow guide box, a rotating shaft and a driving assembly, the atmospheric pollutant sampling head facilitates rapid replacement of the filtering belts of different specifications, the cover does not need to be disassembled manually, time and labor are saved, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, and particularly relates to an air pollutant sampling head. Background Technique

[0002] The air pollutant sampling head is an important component for collecting air pollutant samples, consisting of an air inlet, a filtering device, a collection container, etc. The air inlet ensures the collection of representative samples, and the filtering device guarantees the accuracy of the samples. It plays a key role in environmental monitoring and air quality research, providing data support for evaluating pollution conditions and formulating treatment measures.

[0003] When the existing air pollutant sampling head is in use, usually the lid is unscrewed, the filter layer is put into the sampling head, the lid is tightened, and then the air pollutant sampling head is screwed onto the sampling device for sampling. However, for different pollutions, different filter layers need to be replaced. When replacing the filter layer, the operator unscrews the lid again, replaces the filter layer, and then screws the lid back onto the sampling head, which is time-consuming and laborious, reducing the sampling efficiency. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the utility model provides an air pollutant sampling head to solve the problem that in the existing technology when replacing the filter layer, the operator unscrews the lid again, replaces the filter layer, and then screws the lid back onto the sampling head, which is time-consuming and laborious, reducing the sampling efficiency as mentioned in the background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: An air pollutant sampling head, comprising: a sampling box, a conveying pipe, a filter belt, a filtering mechanism, and a fixing mechanism;

[0008] An air inlet is opened on the sampling box;

[0009] The conveying pipe is communicated with the sampling box;

[0010] The filter belt is arranged in the sampling box;

[0011] The filtering mechanism is arranged in the sampling box and is used for replacing the filtering specifications according to different environments;

[0012] The fixing mechanism is arranged in the sampling box and is used for fixing the filter belt.

[0013] Preferably, the filtering mechanism comprises: a diversion box, a rotating shaft, and a driving component;

[0014] The diversion box is fixedly connected inside the sampling box. Two chutes are provided on the diversion box, and the filter belt is arranged between the two chutes;

[0015] A plurality of rotating shafts are provided. The plurality of rotating shafts are all rotatably connected inside the sampling box, and the filter belt is drivingly connected between the plurality of rotating shafts;

[0016] The driving assembly is arranged on the sampling box and is used to drive the rotating shaft to rotate.

[0017] Further, the driving assembly includes: a driving rod and a handle;

[0018] The driving rod is fixedly connected to one of the rotating shafts;

[0019] The handle is fixedly connected to the driving rod.

[0020] Still further, the fixing mechanism includes: a fixing frame, a fixing block and a stretching assembly;

[0021] The fixing frame is arranged inside the diversion box;

[0022] Two fixing blocks are provided. The two fixing blocks are both fixedly connected to the fixing frame;

[0023] The stretching assembly is arranged on the sampling box and the diversion box and is used to drive the fixing frame to move.

[0024] As a further solution of the present application, the stretching assembly includes: a sliding frame and a spring;

[0025] The sliding frame is fixedly connected to the fixing frame, and the sliding frame is slidably arranged on the sampling box and the diversion box;

[0026] A plurality of springs are provided. The plurality of springs are all sleeved on the sliding frame, and the plurality of springs are all arranged between the fixing frame and the diversion box.

[0027] As a still further solution of the present application, a handle is fixedly connected to the sliding frame.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present utility model provides an air pollutant sampling head, which has the following beneficial effects:

[0030] 1. In the present utility model, through the arrangement of the filtering mechanism, it is convenient to quickly replace filter belts of different specifications.

[0031] 2. In the present utility model, through the arrangement of the fixing mechanism, it is convenient to seal and fix the filter belt, improving the filtering effect.

[0032] 3. In the present utility model, through the cooperation among the sampling box, the conveying pipe, the filter belt, the filtering mechanism and the fixing mechanism, it is convenient to quickly replace filter belts of different specifications without manually disassembling the lid, which is time-saving and labor-saving, and improves the sampling efficiency. Description of the Drawings

[0033] Figure 1 It is a schematic structural diagram of the whole application;

[0034] Figure 2 It is a schematic sectional structural diagram of the application;

[0035] Figure 3 It is a schematic structural diagram of the filtering mechanism and the fixing mechanism of the application;

[0036] Figure 4 It is a schematic structural diagram of the fixing mechanism of the application.

[0037] In the figure: 1, sampling box; 2, conveying pipe; 3, filter belt; 4, diversion box; 5, rotating shaft; 6, driving rod; 7, handle; 8, fixing frame; 9, fixing block; 10, sliding frame; 11, spring; 12, handle. Detailed Embodiment

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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.

[0039] Please refer to Figures 1 to 4 , an air pollutant sampling head, comprising: a sampling box 1, a conveying pipe 2, a filter belt 3, a filtering mechanism and a fixing mechanism. An air inlet is provided on the sampling box 1. The conveying pipe 2 is connected to the sampling box 1. The filter belt 3 is arranged in the sampling box 1. Through the cooperation among the sampling box 1, the conveying pipe 2, the filter belt 3, the filtering mechanism and the fixing mechanism, it is convenient to quickly replace filter belts 3 of different specifications without manually disassembling the lid, which is time-saving and labor-saving, and improves the sampling efficiency.

[0040] Among them, a filtering mechanism is arranged in the sampling box 1 and is used to change the filtering specifications according to different environments. The filtering mechanism includes: a diversion box 4, a rotating shaft 5 and a driving component. The diversion box 4 is fixedly connected in the sampling box 1. Two sliding grooves are formed in the diversion box 4. The filter belt 3 is arranged between the two sliding grooves. A plurality of rotating shafts 5 are provided. The plurality of rotating shafts 5 are all rotatably connected in the sampling box 1. The filter belt 3 is drivingly connected between the plurality of rotating shafts 5. The driving component is arranged on the sampling box 1 and is used to drive the rotating shaft 5 to rotate. The driving component includes: a driving rod 6 and a handle 7. The driving rod 6 is fixedly connected to one of the rotating shafts 5. The handle 7 is fixedly connected to the driving rod 6. Specifically, when it is necessary to replace the filter belt 3 of different specifications, the operator rotates the handle 7 to drive the driving rod 6 to rotate. The rotation of the driving rod 6 drives one of the rotating shafts 5 to rotate. Through the transmission of the filter belt 3, a plurality of rotating shafts 5 are driven to rotate synchronously, so as to replace the filter holes of different specifications on the filter belt 3.

[0041] Among them, a fixing mechanism is arranged in the sampling box 1 and is used to fix the filter belt 3. The fixing mechanism includes: a fixing frame 8, a fixing block 9 and a stretching component. The fixing frame 8 is arranged in the diversion box 4. Two fixing blocks 9 are provided. The two fixing blocks 9 are both fixedly connected to the fixing frame 8. The stretching component is arranged on the sampling box 1 and the diversion box 4 and is used to drive the fixing frame 8 to move. The stretching component includes: a sliding frame 10 and a spring 11. A handle 12 is fixedly connected to the sliding frame 10. The sliding frame 10 is fixedly connected to the fixing frame 8. The sliding frame 10 is slidably arranged on the sampling box 1 and the diversion box 4. A plurality of springs 11 are provided. The plurality of springs 11 are all sleeved on the sliding frame 10. The plurality of springs 11 are all arranged between the fixing frame 8 and the diversion box 4. Specifically, the fixing frame 8 and the fixing block 9 are pressed down by the elastic force of the spring 11, so as to tightly press the filter belt 3 in the sampling box 1, and then the filter belt 3 is hermetically fixed at the connection between the sampling box 1 and the conveying pipe 2.

[0042] To sum up, when the air pollutant sampling head needs to replace the filter belt 3 of different specifications, the operator rotates the handle 7 to drive the driving rod 6 to rotate. The rotation of the driving rod 6 drives one of the rotating shafts 5 to rotate. Through the transmission of the filter belt 3, a plurality of rotating shafts 5 are driven to rotate synchronously, so as to replace the filter holes of different specifications on the filter belt 3. When replacing the filter belt 3, the operator needs to pull up the handle 12 to lift the sliding frame 10, the fixing frame 8 and the fixing block 9, so that the fixing block 9 is away from the filter belt 3, thus facilitating the rotation of the filter belt 3. After replacement, the fixing frame 8 and the fixing block 9 are pressed down by the elastic force of the spring 11, so as to tightly press the filter belt 3 in the sampling box 1, and then the filter belt 3 is hermetically fixed at the connection between the sampling box 1 and the conveying pipe 2.

[0043] It should be added that the filter belt 3 is provided with filter holes of different specifications. When replacing the filter holes of different specifications, the filter belt 3 is only driven on multiple rotating shafts 5 to achieve quick replacement. Through the setting of the diversion box 4, when one position of the filter belt 3 filters, other positions will not be affected.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An atmospheric pollutant sampling head, characterized in that: include: A sampling box (1), wherein the sampling box (1) is provided with an air inlet; A delivery tube (2), the delivery tube (2) being connected to the sampling box (1); A filter belt (3), wherein the filter belt (3) is arranged in the sampling box (1); A filtering mechanism, the filtering mechanism being arranged in the sampling box (1) and being used for changing filtering specifications according to different environments; A fixing mechanism, wherein the fixing mechanism is arranged in the sampling box (1) and is used to fix the filter belt (3).

2. An air pollutant sampling head according to claim 1, characterized in that: The filtering mechanism comprises: A flow guide box (4), the flow guide box (4) is fixedly connected to the sampling box (1), two chutes are provided on the flow guide box (4), and the filter belt (3) is arranged between the two chutes; A rotating shaft (5), wherein a plurality of the rotating shafts (5) are provided, and the plurality of the rotating shafts (5) are all rotatably connected in the sampling box (1), and the filter belt (3) is transmission-connected between the plurality of the rotating shafts (5); A driving assembly, wherein the driving assembly is arranged on the sampling box (1) and is used to drive the rotating shaft (5) to rotate.

3. An air pollutant sampling head according to claim 2, characterized in that: The drive assembly comprises: A driving rod (6), wherein the driving rod (6) is fixedly connected to one of the rotating shafts (5); A handle (7), wherein the handle (7) is fixedly connected to the driving rod (6).

4. The air pollutant sampling head according to claim 3, characterized in that: The fixing mechanism comprises: A fixing frame (8), wherein the fixing frame (8) is arranged in the flow guide box (4); A fixing block (9), wherein two fixing blocks (9) are provided, and both fixing blocks (9) are fixedly connected to the fixing frame (8); A stretching assembly, wherein the stretching assembly is arranged on the sampling box (1) and the flow guide box (4) and is used to drive the fixing frame (8) to move.

5. The air pollutant sampling head according to claim 4, characterized in that: The stretching assembly comprises: A slide (10), the slide (10) being fixedly connected to the fixed frame (8), and the slide (10) being slidably arranged on the sampling box (1) and the flow guide box (4); A spring (11), wherein a plurality of the springs (11) are provided, the plurality of springs (11) are all sleeved on the slide frame (10), and the plurality of springs (11) are all arranged between the fixed frame (8) and the guide box (4).

6. The air pollutant sampling head according to claim 5, characterized in that: A handle (12) is fixedly connected to the slide frame (10).

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