Dust particle counter calibration device

By designing a dust particle counter calibration device, the airflow channel is closed and connected by rotating the valve rod, which solves the problem of cumbersome operation of disassembling hoses and pipes in the existing technology, and achieves the effect of simplifying the calibration process and improving the detection accuracy.

CN224095622UActive Publication Date: 2026-04-07SUZHOU GUOFANG METROLOGY GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing dust particle counters require frequent disassembly of hoses and pipes during calibration, increasing operational intensity, easily damaging components, and potentially introducing impurities that interfere with calibration results.

Method used

A dust particle counter calibration device was designed. By rotating the toggle valve rod on the adjusting valve block, the input end of the external hose is closed and the internal airflow channel is connected. Calibration is performed using an airflow calibration module, avoiding cumbersome disassembly operations, and forming a closed airflow circulation system inside.

Benefits of technology

It simplifies the calibration process, saves time and labor costs, ensures the accuracy of test results, reduces the possibility of airflow leakage, and improves the stability of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224095622U_ABST
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Abstract

The utility model relates to a dust particle counter calibration device applied to the field of calibration devices, which comprises a dust particle counting calibration device main body, an airflow calibration module is arranged on the left side of the upper end of the dust particle counting calibration device main body, and the rear end of the dust particle counting calibration device main body is symmetrically and fixedly connected with channel ports. The rear ends of the two channel ports are fixedly connected with a second hollow pipe and a first hollow pipe respectively, the rear end of the second hollow pipe is fixedly connected with a hollow stand column, an efficient circulation middle connecting pipe is fixedly connected between the second hollow pipe and the first hollow pipe, and the rear end of the hollow stand column is fixedly connected with a connecting pipe opening. According to the dust particle counter calibration device, the operation of frequently disassembling an external connection hose and a connecting pipe in efficient circulation is effectively avoided, closing of the input end of the external connection hose and communication of an internal airflow channel are achieved by rotating a shifting valve rod on the adjusting valve block, calibration can be achieved by starting the airflow calibration module, and the calibration process is simplified.
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Description

Technical Field

[0001] This utility model relates to a calibration device, and more particularly to a dust particle counter calibration device applied in the field of calibration devices. Background Technology

[0002] In many fields such as modern industrial production, scientific research experiments, and medical and health care, the number and size distribution of dust particles have a crucial impact on product quality, experimental results, and environmental cleanliness. As the core equipment for accurately detecting dust particles, the accuracy of the detection results of the dust particle counter is directly related to the effectiveness and reliability of related work.

[0003] Chinese patent CN211122438U discloses a dust particle counter, including a body with a button on the bottom surface of the front end. This invention uses a designed anti-misoperation plate located at the end of the button to prevent accidental operation. A designed mounting bracket supports the anti-misoperation plate, and a designed connecting plate connects the anti-misoperation plate to the mounting bracket. A designed mounting rod not only secures the anti-misoperation plate but also prevents the return spring from deviating.

[0004] When calibrating existing dust particle counters, it is necessary to frequently disassemble and reassemble components such as hoses and pipes connected to the dust particle counter. This not only increases the workload of operators, but also easily damages components due to repeated disassembly and reassembly, thereby affecting the service life of the equipment. Moreover, the disassembly process may introduce new impurities that interfere with the calibration results. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that existing dust particle counters require frequent disassembly and disassembly of components such as hoses and pipes connected to the dust particle counter during calibration. This not only increases the workload of operators, but also easily causes damage to components due to repeated disassembly and assembly, thereby affecting the service life of the equipment. Moreover, new impurities may be introduced during the disassembly process, interfering with the calibration results.

[0006] To address the aforementioned issues, this utility model provides a dust particle counter calibration device, comprising a dust particle counting calibration equipment body, an airflow calibration module disposed on the upper left side of the dust particle counting calibration equipment body, channel ports symmetrically and fixedly connected to the rear end of the dust particle counting calibration equipment body, a second hollow tube and a first hollow tube respectively fixedly connected to the rear end of the two channel ports, a hollow column fixedly connected to the rear end of the second hollow tube, a high-efficiency circulation central pipe fixedly connected between the second hollow tube and the first hollow tube, a connecting pipe port fixedly connected to the rear end of the hollow column, a multi-stage adaptive stepped clamp fixedly connected to the rear end of the connecting pipe port, an external flexible hose installed at the rear end of the multi-stage adaptive stepped clamp, and an adjusting valve block installed at the inner end of the hollow column.

[0007] In the aforementioned dust particle counter calibration device, the device avoids the cumbersome operation of frequently disassembling the external hose and the high-efficiency circulation pipe. During the testing process, the input end of the external hose can be closed and the internal airflow channel can be connected by rotating the toggle valve rod on the adjustment valve block. Calibration can then be performed by turning on the airflow calibration module, which greatly simplifies the calibration process and saves time and labor costs.

[0008] As a further improvement to this application, a smart touch control panel is fixedly connected to the front left side of the main body of the dust particle counting calibration device, and the adjustment valve block includes a toggle valve rod.

[0009] As a further improvement to this application, the toggle valve rod extends out of the hollow column, and the outer three sides of the adjusting valve block are provided with transmission ring hole channels.

[0010] As a further improvement of this application, the upper and lower sides of the outer end of the adjusting valve block are symmetrically provided with annular sliding grooves, and the upper and lower sides of the inner sidewall of the hollow column are symmetrically fixedly connected with stabilizing guide sliders.

[0011] As another improvement of this application, multiple guide sliders are slidably connected to corresponding annular grooves, and sealing rings are symmetrically fixedly connected to the upper and lower sides of the outer end of the adjusting valve block.

[0012] As a further improvement to this application, the sealing ring and the inner wall of the hollow column are in contact with each other, and the outer end of the multi-stage adaptive stepped clamp is fixedly connected with a threaded anti-loosening outer layer.

[0013] As a further improvement to this application, the multi-stage adapter stepped hose clamp is engaged with the external connecting hose through a threaded anti-detachment outer layer, and the two channel ports are interconnected with the airflow calibration module.

[0014] In summary, this device avoids the cumbersome operation of frequently disassembling external hoses and high-efficiency circulation connecting pipes. During testing, the input end of the external hose can be closed and the internal airflow channel can be connected by rotating the toggle valve rod on the adjusting valve block. Calibration can then be performed by activating the airflow calibration module, greatly simplifying the calibration process and saving time and labor costs. By setting up the airflow calibration module and enabling calibration during testing, potential errors are eliminated, ensuring the accuracy of the test results. The closed airflow circulation system formed inside the device ensures stable airflow circulation between the first hollow tube, the high-efficiency circulation connecting pipe, and the first hollow tube, providing excellent conditions for accurate calibration. The cooperation between the guide slider and the annular groove inside the adjusting valve block, as well as the contact between the sealing ring and the inner wall of the hollow column, ensure the stability of the adjusting valve block rotation and the sealing of the airflow channel. This design reduces the possibility of airflow leakage, avoids interference with the test results due to unstable airflow, and improves the overall stability of the device. Attached Figure Description

[0015] Figure 1 This is a front axonometric view of the main body of the dust particle counting calibration device according to the first and second embodiments of this application;

[0016] Figure 2 This is a rear axonometric view of the main body of the dust particle counting calibration device according to the first embodiment of this application;

[0017] Figure 3 This is the first embodiment of the present application. Figure 2 A partially truncated enlarged schematic diagram of the main body of the dust particle counting calibration equipment;

[0018] Figure 4 This is a top view schematic diagram of the adjusting valve block according to the first embodiment of this application;

[0019] Figure 5 This is an exploded view of the hollow column according to the first embodiment of this application;

[0020] Figure 6 This is an axonometric view of the adjusting valve block according to the first embodiment of this application;

[0021] Figure 7 This is a schematic diagram of a multi-level adapter ladder clamp according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Main body of dust particle counting calibration equipment; 2. Intelligent touch control panel; 3. First hollow tube; 4. High-efficiency circulation connecting pipe; 5. Connecting pipe port; 6. Multi-level adaptive stepped pipe clamp; 7. External connecting hose; 8. Hollow column; 9. Adjusting valve block; 10. Actuating valve stem; 11. Transmission ring hole channel; 12. Annular slide groove; 13. Stabilizing guide slider; 14. Threaded anti-detachment outer layer; 15. Sealing ring; 16. Airflow calibration module; 17. Channel port; 18. Second hollow tube. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figures 1-6 A dust particle counter calibration device is shown, including a dust particle counting calibration device body 1. An airflow calibration module 16 is provided on the upper left side of the dust particle counting calibration device body 1. Channel ports 17 are symmetrically fixedly connected to the rear end of the dust particle counting calibration device body 1. A second hollow tube 18 and a first hollow tube 3 are fixedly connected to the rear end of the two channel ports 17, respectively. A hollow column 8 is fixedly connected to the rear end of the second hollow tube 18. A high-efficiency circulation central pipe 4 is fixedly connected between the second hollow tube 18 and the first hollow tube 3. A connecting port 5 is fixedly connected to the rear end of the hollow column 8. A multi-stage adaptive stepped clamp pipe 6 is fixedly connected to the rear end of the connecting port 5. An external connecting hose 7 is installed at the rear end of the multi-stage adaptive stepped clamp pipe 6. An adjusting valve block 9 is installed at the inner end of the hollow column 8.

[0027] Figures 1-6 The front left side of the dust particle counting calibration device body 1 is fixedly connected to an intelligent touch control panel 2. The adjustment valve block 9 includes a toggle valve rod 10, which extends out of the hollow column 8. The outer end of the adjustment valve block 9 has transmission ring hole channels 11 on three sides. The upper and lower sides of the outer end of the adjustment valve block 9 are symmetrically provided with annular sliding grooves 12. The upper and lower sides of the inner wall of the hollow column 8 are symmetrically fixedly connected to stabilizing sliders 13. Multiple stabilizing sliders 13 are slidably connected to the corresponding annular sliding grooves 12. The upper and lower sides of the outer end of the adjustment valve block 9 are symmetrically fixedly connected to sealing rings 15, which are in contact with the inner wall of the hollow column 8.

[0028] Figures 1-6The diagram illustrates that during dust particle counting, the external hose 7 is secured to the connecting port 5 using the threaded anti-detachment outer layer 14 on the multi-stage adapter stepped clamp 6, creating a sealed connection between the external hose 7 and the device. The operator starts the device via the intelligent touch control panel 2. At this time, the input end of the external hose 7 is open, allowing the external airflow to enter the device through the hose 7. The airflow sequentially passes through the connecting port 5, hollow column 8, second hollow tube 18, high-efficiency circulation central pipe 4, first hollow tube 3, and channel port 17, finally reaching the airflow calibration module 16 for calibration and testing. During this process, the airflow calibration module 16 counts and analyzes the dust particles in the airflow to obtain accurate detection data. To ensure the accuracy of the detection results, calibration may be required midway. In this case, the operator can change the airflow direction by rotating the toggle valve rod 10 on the adjusting valve block 9. The device has a transmission ring channel 11 on its surface and symmetrical annular grooves 12 on its upper and lower outer ends. A guide slider 13 is symmetrically fixed to the upper and lower inner walls of the hollow column 8, and the guide slider 13 slides between the guide slider 13 and the annular grooves 12. Simultaneously, a sealing ring 15 symmetrically fixed to the upper and lower outer ends of the adjusting valve block 9 contacts the inner wall of the hollow column 8. This structural design ensures the stability and sealing of the adjusting valve block 9's rotation. When the valve rod 10 is rotated, the adjusting valve block 9 rotates, closing the input end of the external connecting hose 7 and connecting the channels between the second hollow tube 18, the first hollow tube 3, and the high-efficiency circulation connecting pipe 4. At this time, the airflow calibration module 16 is activated, forming a closed airflow circulation system inside the device. The airflow circulates between the second hollow tube 18, the high-efficiency circulation connecting pipe 4, and the first hollow tube 3. The airflow is calibrated and adjusted by the airflow calibration module 16 to eliminate potential errors and improve detection accuracy.

[0029] Second implementation method:

[0030] Figure 2 , Figure 7 A dust particle counter calibration device is shown. The outer end of the multi-stage adaptive stepped clamp tube 6 is fixedly connected with a threaded anti-detachment outer layer 14. The multi-stage adaptive stepped clamp tube 6 is engaged with the external connecting hose 7 through the threaded anti-detachment outer layer 14. The two channel ports 17 are interconnected with the airflow calibration module 16. The threaded anti-detachment outer layer 14 on the outside of the multi-stage adaptive stepped clamp tube 6 can be connected to external connecting hoses 7 of different sizes, which makes the device adaptable to external connecting hoses 7 of different specifications and expands the applicability of the device.

[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A dust particle counter calibration device, characterized in that: The device includes a dust particle counting calibration device body (1). An airflow calibration module (16) is located on the upper left side of the dust particle counting calibration device body (1). Channel ports (17) are symmetrically fixedly connected to the rear end of the dust particle counting calibration device body (1). A second hollow tube (18) and a first hollow tube (3) are respectively fixedly connected to the rear ends of the two channel ports (17). A hollow column (8) is fixedly connected to the rear end of the second hollow tube (18). The second hollow tube (18) and the first hollow column (3)... A high-efficiency circulation pipe (4) is fixedly connected between the pipes (3). A connecting pipe port (5) is fixedly connected to the rear end of the hollow column (8). A multi-stage adaptive stepped clamp pipe (6) is fixedly connected to the rear end of the connecting pipe port (5). An external connecting hose (7) is installed at the rear end of the multi-stage adaptive stepped clamp pipe (6). An adjusting valve block (9) is installed at the inner end of the hollow column (8). A transmission ring hole channel (11) is opened on three sides of the outer end of the adjusting valve block (9). The adjusting valve block (9) includes a toggle valve rod (10).

2. The dust particle counter calibration device according to claim 1, characterized in that: The front left side of the dust particle counting calibration device body (1) is fixedly connected to an intelligent touch control panel (2), and the toggle valve rod (10) extends out of the hollow column (8).

3. The dust particle counter calibration device according to claim 1, characterized in that: The multiple transmission ring channels (11) are interconnected with the corresponding second hollow tube (18), the high-efficiency circulation connecting pipe (4), and the external connecting hose (7).

4. The dust particle counter calibration device according to claim 1, characterized in that: The adjusting valve block (9) has symmetrically opened annular sliding grooves (12) on the upper and lower sides of its outer end, and the hollow column (8) has symmetrically fixed guide sliders (13) on the upper and lower sides of its inner sidewall.

5. The dust particle counter calibration device according to claim 4, characterized in that: Multiple guide sliders (13) are slidably connected to corresponding annular grooves (12), and sealing rings (15) are symmetrically fixedly connected to the upper and lower sides of the outer end of the adjusting valve block (9).

6. The dust particle counter calibration device according to claim 5, characterized in that: The sealing ring (15) and the inner wall of the hollow column (8) are in contact with each other, and the outer end of the multi-stage adaptive stepped tube (6) is fixedly connected with a threaded anti-detachment outer layer (14).

7. A dust particle counter calibration device according to claim 6, characterized in that: The multi-stage adaptive stepped tube clamp (6) engages with the external connecting hose (7) through the threaded anti-detachment outer layer (14), and the two channel ports (17) are interconnected with the airflow calibration module (16).

Citation Information

Patent Citations

  • Dust particle counter

    CN211122438U