A mobile dust particle detection device for a port environment

Abstract

The application belongs to the technical field of dust particle detection, and particularly relates to a mobile dust particle detection device for port environment. The mobile dust particle detection device for port environment is quick to operate and convenient for zero-point calibration. The device comprises a dust detector, a corrector, an extrusion mechanism for automatic zero-point calibration, a push-pull mechanism and the like. The extrusion mechanism is arranged on one side of a connecting seat, and the push-pull mechanism is arranged on the other side of a connecting arm. Through the cooperation of the extrusion mechanism and the push-pull mechanism, accurate and quick zero-point calibration operation can be realized, so that the detection gas path channel and the detection hole can be automatically opened and reset closed. Manual intervention for disassembly, correction and manual inflation is not required, and the convenience of operation can be effectively improved. The whole process has high automation degree and fast response, and is suitable for port emergency rescue, environmental supervision and the like, and can provide real-time and reliable auxiliary decision-making reference for fire warning, personnel protection and the like.

Description

Technical Field

[0001] This invention belongs to the field of dust particle detection technology, specifically a mobile dust particle detection device for port environments. Background Technology

[0002] As cargo distribution centers, ports constantly engage in loading, unloading, transportation, and storage of materials, which easily generate large amounts of dust. To ensure the normal and orderly operation of ports and prevent major emergencies such as fires, regular dust monitoring is necessary.

[0003] Existing dust detection equipment is mostly fixed or portable handheld instruments, mainly composed of light sources, diffusers, receivers, and signal processors. In the dynamic and ever-changing port environment, it is often necessary to comprehensively cover and accurately monitor dust areas at different operating levels and heights; and before each detection, the dust detection instrument must be zero-point calibrated to ensure the accuracy of the detection data.

[0004] However, existing dust detection instruments generally lack automatic calibration functions and still require manual intervention for adjustment. This means that the pipeline of the zero-point calibration device needs to be connected to the dust detection instrument, and the detection chamber on the dust detector needs to be continuously cleaned by manually pressing the air bag repeatedly to achieve the purpose of zero-point calibration. This manual zero-point calibration operation is not convenient enough, and sometimes it is also time-consuming and not timely enough. Summary of the Invention

[0005] To overcome the shortcomings of existing dust detection instruments, which still require manual zero-point calibration, resulting in long processing times and slow operation, this invention provides a mobile dust particle detection device for port environments that is quick to operate and easy to zero-point calibrate, thereby improving the real-time performance and convenience of port environmental monitoring.

[0006] The technical solution of the present invention: A mobile dust particle detection device for port environments includes a mobile base on which a control box, a base, and a rotating seat capable of vertically rotating and adjusting the angle are sequentially arranged. A connecting seat, a dust detector, and a calibrator are sequentially arranged on the rotating seat via telescopic adjustment components. The device also includes a squeezing mechanism and a push-pull mechanism for automatic zero-point calibration. A squeezing mechanism is provided on one side of the connecting seat. The squeezing mechanism includes a connecting arm, a squeezing arm, and a reciprocating drive component. The connecting arm is located on the connecting seat. A squeezing arm driven by the reciprocating drive component is provided on one side of the connecting arm for repeatedly pressing and blowing air into the airbag of the calibrator. A push-pull mechanism is provided on the other side of the connecting arm. The push-pull mechanism includes a protective sleeve whose movement amplitude is controlled and adjusted by the push-pull component. The protective sleeve is movably fitted over the detection hole of the dust detector for blocking or opening the detection hole on the dust detector.

[0007] As a further improvement to the above technical solution, the reciprocating drive component includes a housing, a micro motor, a guide sleeve, and a rocker arm. The housing is provided on one side of the connecting arm, and the air bladder of the dust detector is located inside the housing. The extrusion arm is slidably sleeved on the housing. A guide sleeve with a straight groove is connected to the upper side of the extrusion arm. A micro motor is provided on the upper side of the connecting arm. The output shaft end of the micro motor is connected to the rocker arm, and the end of the rocker arm away from the output shaft of the micro motor extends movably into the straight groove of the guide sleeve. The rocker arm is driven to rotate by the micro motor, so as to drive the guide sleeve and the extrusion arm to reciprocate up and down to extrude air from the air bladder of the dust detector.

[0008] As a further improvement to the above technical solution, the push-pull component includes an electric push rod, a push-pull arm, and a pawl. An electric push rod is provided on the other side of the connecting arm. The telescopic shaft end of the electric push rod is connected to the push-pull arm, and the push-pull arm is slidably sleeved on the connecting arm through a groove on it. The end of the push-pull arm is connected to a pawl, and the pawl is semi-enclosed and locked onto the outer wall of the protective sleeve. By controlling the extension or retraction of the telescopic shaft of the electric push rod, the push-pull arm, the pawl, and the protective sleeve are moved synchronously to precisely control and adjust the opening range of the detection hole.

[0009] As a further improvement to the above technical solution, the dust detector integrates a detection probe, a main unit, and a connecting cable. The detection probe is detachably snapped onto the connecting base, and a detection hole perpendicular to and penetrating the probe's axis is provided on the detection probe for detecting the concentration of dust particles. The main unit is located on one side of the rotating base, and a connecting cable for signal transmission is connected between the main unit and the detection probe.

[0010] As a further improvement to the above technical solution, the calibrator includes a connecting tube, an air bladder, and a one-way filter valve. One end of the connecting tube is connected to one end of the detection probe through a connecting sleeve, and the connecting sleeve is connected to the detection hole to form an air passage. The air bladder is connected to the other end of the connecting tube and is connected to a one-way filter valve that communicates with its interior to control the airflow direction.

[0011] As a further improvement to the above technical solution, the telescopic adjustment component includes a telescopic rod, an air pump, and an air pipe. The telescopic shaft end of the telescopic rod is connected to the connecting seat, and the outer sleeve of the telescopic rod is fixedly sleeved on the rotating seat. The air pump is located on one side of the lower part of the control box, and the air inlet of the air pump is connected to the air inlet end of the telescopic rod by an air pipe.

[0012] As a further improvement to the above technical solution, a sealing structure is also included. The sealing structure includes a bearing seat, a bushing, a sealing cover, and a spiral spring. The bushing is also rotatably connected to the connecting arm, and the bearing seat is detachably inserted into the bushing. One end of the bearing seat is connected to a sealing cover, which is located inside the connecting sleeve and is used to open or close the air passage inside the connecting sleeve. A spiral spring is connected between one side of the bearing seat and the connecting arm to provide a reset function.

[0013] As a further improvement to the above technical solution, an actuating component is also included. The actuating component includes a guide rod, an elastic element, and a lever. The guide rod is movably sleeved on the end of the bushing away from the sealing cover. An elastic element is sleeved on the guide rod. One end of the elastic element is connected to the guide rod, and the other end is connected to the bushing. A lever is connected to the push-pull arm. When the electric push rod is controlled to drive the push-pull arm and the lever to move synchronously, the lever causes the guide rod, the bearing seat, and the bushing to rotate synchronously, thereby driving the sealing cover to open or close the air passage.

[0014] As a further improvement to the above technical solution, the inner side of the lever is designed with a slanted opening to automatically pass over the guide rod during the return stroke; the elastic coefficient of the spiral spring is greater than that of the elastic element.

[0015] As a further improvement to the above technical solution, an angle adjustment mechanism is also included. The angle adjustment mechanism includes a servo motor, a rotating shaft, and gears. The servo motor is installed on the upper side inside the control box. The output shaft of the servo motor is connected to the rotating shaft through a coupling. One end of the rotating shaft is connected to the outer wall of the control box through a bearing. The rotating rod of the base and the rotating shaft are respectively connected by keys to meshing gears. By controlling the servo motor to drive the rotating shaft and gears to rotate, the tilt angle of the rotating seat, telescopic adjustment component, dust detector, and calibrator can be adjusted synchronously.

[0016] The beneficial effects are: 1. Through the coordinated operation of the extrusion mechanism and the push-pull mechanism, accurate and quick zero-point calibration can be achieved, so that the detection gas path and detection hole can be automatically opened and reset and closed, without too much manual intervention to disassemble and calibrate the calibrator and manually inflate, thus effectively improving the convenience of operation; and the whole process is highly automated and responds quickly, which is suitable for scenarios such as port emergency rescue and environmental supervision, and can provide real-time and reliable auxiliary decision-making reference for fire early warning and personnel protection, so as to ensure the orderliness and safety of detection operations.

[0017] 2. The tilt angle of the dust detector is adjusted by a servo motor and raised and lowered by a pneumatic telescopic rod, enabling three-dimensional dust sampling operations at different heights and directions. The overall automation level is high, requiring minimal manual intervention, which helps improve the accuracy of dust particle concentration detection in complex environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the connection structure of the rotating base, telescopic rod, dust detector, and calibrator of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the dust detector and calibrator of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the corrector and extrusion mechanism of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the extrusion mechanism of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the push-pull mechanism of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the sealing structure and the actuating element of the present invention.

[0025] Figure 8 This is a separate diagram of the bearing seat and bushing structure of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the angle adjustment mechanism of the present invention.

[0027] The components in the attached diagram are labeled as follows: 1. Movable base; 2. Control box; 201. Base; 3. Rotary seat; 4. Telescopic rod; 5. Connecting seat; 6. Dust detector; 60. Detection probe; 61. Detection hole; 62. Main unit; 63. Connecting cable; 7. Calibrator; 70. Connecting pipe; 71. Airbag; 72. One-way filter valve; 73. Connecting sleeve; 8. Connecting arm; 9. Shell; 10. Extrusion arm; 11. Micro motor; 12. Guide sleeve; 13. Rocker arm; 14. Electric push rod; 15. Push-pull arm; 150. Slide groove; 16. Claw; 17. Protective sleeve; 18. Shaft seat; 180. Shaft sleeve; 19. Sealing cover; 20. Spiral spring; 21. Guide rod; 22. Elastic element; 23. Pulley; 24. Servo motor; 25. Rotating shaft; 26. Gear; 27. Air pump; 28. Air pipe. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Specific Embodiment 1 of the present invention: A mobile dust particle detection device for port environments is provided, see below. Figures 1 to 9As shown, the device includes a mobile base 1, a control box 2, a base 201, a rotating seat 3, a telescopic adjustment component, a connecting seat 5, a dust detector 6, a calibrator 7, a pressing mechanism, and a push-pull mechanism. The mobile base 1 has integrated casters with built-in brakes and locking functions, facilitating easy movement to the port dust monitoring area. The control box 2 is located on the upper part of the mobile base 1. A rotating seat 3, adjustable for tilt angle, is mounted on the top of the control box 2 via the base 201. A telescopic adjustment component for automatic length control is mounted on the rotating seat 3. A connecting seat 5 is located at the end of the telescopic rod 4 of the telescopic adjustment component. A dust detector 6 for detecting dust particles is detachably mounted on one side of the connecting seat 5, providing auxiliary decision-making for rescue and firefighting. One end of the dust detector 6 is equipped with… The calibrator 7 has a squeezing mechanism on the other side of the connecting seat 5. The squeezing mechanism includes a connecting arm 8, a squeezing arm 10, and a reciprocating drive. The connecting arm 8 is located on one side of the connecting seat 5, and the squeezing arm 10, driven by the reciprocating drive, is located on the other side of the connecting arm 8. This squeezing arm 10 is used to repeatedly press and blow air onto the airbag 71 of the calibrator 7 to achieve automatic zero-point calibration. The other side of the connecting arm 8 has a push-pull mechanism. The push-pull mechanism includes a protective sleeve 17 whose movement amplitude is controlled and adjusted by the push-pull component. The protective sleeve 17 is movably fitted outside the detection hole 61 of the dust detector 6. By controlling the position of the protective sleeve 17 covering the detection hole 61, it is easy to control the size of the opening amplitude of the detection hole 61, which is beneficial for automatically discharging the dust retained in the detection hole 61 during zero-point calibration.

[0030] See Figure 1 , Figure 2 and Figure 6 As shown, the push-pull component includes an electric push rod 14, a push-pull arm 15, and a claw 16. An electric push rod 14 is provided on the other side of the connecting arm 8. The telescopic shaft end of the electric push rod 14 is connected to the push-pull arm 15, and the push-pull arm 15 is slidably sleeved on the connecting arm 8 through the slide groove 150 on it. The end of the push-pull arm 15 is connected to the claw 16, and the claw 16 is semi-enclosed and locked onto the outer wall of the protective sleeve 17. By controlling the extension or retraction of the telescopic shaft of the electric push rod 14, the push-pull arm 15, the claw 16, and the protective sleeve 17 are driven to move synchronously. This can accurately control the opening range of the detection hole 61 or completely close it, ensuring that the zero-point calibration process is not affected by external polluted air, thereby improving the sealing and anti-interference ability of the gas passage.

[0031] See Figures 1 to 3 As shown, the dust detector 6 integrates a detection probe 60, a main unit 62, and a connecting cable 63. The detection probe 60 is detachably snapped onto the connecting seat 5. The detection probe 60 has a detection hole 61 that is perpendicular to the axis and penetrates through it, which is used to detect the concentration of dust particles. The main unit 62 is located on one side of the rotating seat 3. A connecting cable 63 for signal transmission is connected between the main unit 62 and the detection probe 60.

[0032] See Figures 1 to 3 As shown, the calibrator 7 includes a connecting tube 70, an air bladder 71, and a one-way filter valve 72. One end of the connecting tube 70 is connected to one end of the detection probe 60 through a connecting sleeve 73, and the connecting tube 70 is detachably connected to the connecting sleeve 73. The air bladder 71 is connected to and communicates with the other end of the connecting tube 70, and the connecting tube 70 contains a one-way valve that communicates with the internal air passage of the detection probe 60 to prevent backflow of airflow inside the detection probe 60. The air inlet end of the air bladder 71 is connected to a one-way filter valve 72 that communicates with its interior to control the airflow direction.

[0033] See Figure 7 and Figure 8 As shown, it also includes a sealing structure, which includes a shaft seat 18, a shaft sleeve 180, a sealing cover 19, and a spiral spring 20. The shaft sleeve 180 is rotatably connected to the connecting arm 8. One end of the shaft seat 18 has a diamond-shaped rod structure design, and the end of the shaft seat 18 with the diamond-shaped rod is detachably inserted into the shaft sleeve 180. The sealing cover 19 is connected to one end of the shaft seat 18 and is located inside the connecting sleeve 73, used to open or close the air passage within the connecting sleeve 73. A spiral spring 20 is connected between one side of the shaft seat 18 and the connecting arm 8 to provide sealing. The cover 19 provides a reset spring force; here, since the bearing seat 18 and the bushing 180 are designed with a snap-on disassembly structure, and the connecting pipe 70 is detachably connected to the connecting sleeve 73, the dust detector 6 can be easily installed or removed from the connecting seat 5, making it more flexible and convenient to use; by using this mechanical linkage opening and closing control sealing structure, it is possible to effectively avoid the transient electromagnetic field generated during the on and off process when using a solenoid valve alone, which may affect the analog signal circuit of the dust detector 6 through radiation or conduction, thereby causing fluctuations in the measured value.

[0034] See Figure 1 , Figure 2 and Figure 7 As shown, it also includes a toggle element, which includes a guide rod 21, an elastic element 22, and a toggle block 23. The guide rod 21 is movably sleeved on the end of the bushing 180 away from the sealing cover 19. The elastic element 22 is sleeved on the guide rod 21. One end of the elastic element 22 is connected to the guide rod 21, and the other end is connected to the bushing 180. The elastic element 22 is a tension spring, which is used to provide a reset function for the guide rod 21. The push-pull arm 15 is connected to the toggle block 23. When the electric push rod 14 drives the push-pull arm 15 and the toggle block 23 to move synchronously, the toggle block 23 causes the guide rod 21, the bearing seat 18, and the bushing 180 to rotate synchronously, so as to drive the sealing cover 19 to open or close the air passage. The inner side of the toggle block 23 is designed with a beveled structure, and the elastic coefficient of the spiral spring 20 is greater than that of the elastic element 22. It is used to automatically pass over the guide rod 21 during the return stroke to realize a one-way triggering action.

[0035] See Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the reciprocating drive includes a housing 9, a micro motor 11, a guide sleeve 12, and a rocker arm 13. The housing 9 is located on one side of the connecting arm 8, and the air bladder 71 of the dust detector 6 is located inside the housing 9. The extrusion arm 10 is slidably sleeved on the housing 9. The upper side of the extrusion arm 10 is connected to the guide sleeve 12 with a straight groove. The micro motor 11 is located on the upper side of the connecting arm 8. The output shaft end of the micro motor 11 is connected to the rocker arm 13, and the free end of the rocker arm 13 is movably sleeved inside the guide sleeve 12. The micro motor 11 drives the rocker arm 13 to rotate, thereby driving the guide sleeve 12 and the extrusion arm 10 to reciprocate up and down to extrude air from the air bladder 71 of the dust detector 6. This facilitates automated zero-point calibration without manual intervention and helps ensure the accuracy and reliability of long-term monitoring data.

[0036] When using this device, zero-point calibration should be performed first, followed by range calibration to ensure the accuracy of the test data. By controlling the extension shaft of the electric push rod 14 to shorten, the push-pull arm 15 and the chuck 16 move synchronously, causing the chuck 16 to push the protective sleeve 17 to slide synchronously along the axial direction of the detection probe 60, thus slightly opening the detection hole 61. Simultaneously, the push-pull arm 15 also drives the toggle block 23 to move synchronously, causing the toggle block 23 to push the guide rod 21 to overcome the elastic force of the spiral spring 20, driving the shaft seat 18 to rotate, causing the sealing cover 19 to rotate synchronously and remain open, thus opening the air passage within the connecting sleeve 73. Subsequently, the micro electric... When the rocker arm 13 is rotated by the machine 11, the guide sleeve 12 and the extrusion arm 10 move downward along the shell 9 to press the airbag 71. This causes the clean air drawn into the airbag 71 through the one-way filter valve 72 to be blown towards the detection hole 61 through the connecting pipe 70 and the connecting sleeve 73, thereby achieving the purpose of quickly cleaning the probe area in the detection hole 61. When the rocker arm 13 drives the guide sleeve 12 and the extrusion arm 10 to move upward along the shell 9, causing the extrusion arm 10 to disengage from the airbag 71, the airbag 71 returns to its pre-extrusion state under its own elastic force. At this time, the one-way valve in the connecting pipe 70 is closed, so that the airbag 71 only draws in clean air through its one-way filter valve 72; when the reading displayed on the main unit 62 is stable and close to zero, click confirm to quickly complete the zero-point calibration; after calibration, control the electric push rod 14 to continue to retract. At this time, the toggle block 23 further pushes the guide rod 21 to the maximum rotation angle, and under the action of the rebound force of the spiral spring 20, the guide rod 21 automatically rotates in the opposite direction, passing over the inclined structure inside the toggle block 23, realizing automatic disengagement and reactivation. Simultaneously, the sealing cover 19 rotates to close the gas passage, ensuring the stability of the zero-point calibration value and preventing external interference. As the sealing cover 19 closes, the push-pull arm 15 and the claw 16 continue to move the protective sleeve 17 synchronously, completely disengaging the protective sleeve 17 from the detection hole 61 and exposing the detection hole 61. At this point, the range calibrator for the standard concentration gas is inserted into the detection hole 61, and the operation is performed according to the relevant prompts on the main unit 62. After the range value calibration is completed, the range calibrator is removed. In this way, by simply moving the device to the target area so that the detection hole 61 on the detection probe 60 is aligned with the direction of the air vent, real-time and continuous convenient detection of dust particle concentration in the surrounding environment can be achieved.After the test is completed, the electric push rod 14 extends its telescopic shaft, causing the push-pull arm 15 and the claw 16 to reset synchronously. This allows the protective sleeve 17 to completely cover and shield the test hole 61 again, preventing dust and moisture from entering and causing contamination or damage to the device. Simultaneously, the push-pull arm 15 also moves the toggle block 23 to reset synchronously. When the beveled structure on the inner side of the toggle block 23 contacts the upper end of the guide rod 21 and pushes the guide rod 21 downwards, the elastic element 22 is stretched. When the beveled structure completely passes the top of the guide rod 21, the tension of the elastic element 22 pulls the guide rod 21 upwards to reset automatically, thus automatically completing the double sealing of the entire air passage without manual intervention, making it convenient to use. The entire operation requires no manual intervention and has a high degree of automation; it is beneficial for providing auxiliary decision-making in emergency rescue and firefighting situations, ensuring the safety of rescue personnel.

[0037] Specific Embodiment Two of the Invention: Based on Specific Embodiment One, see below Figure 1 As shown, the telescopic adjustment component includes a telescopic rod 4, an air pump 27, and an air pipe 28. The telescopic shaft end of the telescopic rod 4 is connected to the connecting seat 5. The outer sleeve of the telescopic rod 4 is fixedly sleeved on the rotating seat 3. The air pump 27 is located on one side of the lower part of the control box 2. The air inlet of the air pump 27 is connected to the air inlet end of the telescopic rod 4 by an air pipe 28, which facilitates real-time and quick control of the extension or shortening of the telescopic rod 4 to flexibly adapt to the detection requirements of different environments.

[0038] In addition, see Figure 1 and Figure 9 As shown, it also includes an angle adjustment mechanism, which includes a servo motor 24, a rotating shaft 25, and a gear 26. The servo motor 24 is installed on the upper side inside the control box 2. The output shaft of the servo motor 24 is connected to the rotating shaft 25 through a coupling. One end of the rotating shaft 25 is connected to the outer wall of the control box 2 through a bearing. The bottom of the rotating seat 3 has a rotating rod. The rotating seat 3 rotates around the rotating rod. The rotating rod of the rotating seat 3 and the rotating shaft 25 are respectively connected by keys to meshing gears 26. By controlling the servo motor 24 to drive the rotating shaft 25 and gears 26 to rotate, the rotating seat 3, the telescopic adjustment component, the dust detector 6, and the calibrator 7 can be rotated synchronously to adjust the tilt angle, further adapting to the detection requirements of different environments.

[0039] To adapt to dust monitoring needs at different altitudes and wind directions, the servo motor 24 is controlled to rotate, driving the shaft 25 via a coupling. This, in turn, drives the rotating base 3 to rotate and swing vertically via gear 26, allowing for precise adjustment of the overall tilt angle of the dust detector 6. Simultaneously, the air pump 27 is activated, supplying air to the telescopic rod 4 through the air pipe 28. This extends or retracts the telescopic rod 4, causing the connecting base 5 and the dust detector 6 to extend or retract synchronously. This enables multi-dimensional, three-dimensional sampling and detection of dust areas at different altitudes, thereby improving the accuracy of dust particle concentration detection. In summary, this device achieves automated calibration, multi-dimensional adjustment, intelligent control, and mobile monitoring of port dust detection. It significantly improves detection accuracy, efficiency, and adaptability. In emergency situations encountered during port environmental management, such as fires, it can provide timely and accurate auxiliary decision-making for rescue and firefighting, maximizing the safety of rescue personnel.

Claims

1. A mobile dust particle detection device for port environments, comprising a mobile base (1), on which a control box (2), a base (201), and a rotating seat (3) capable of vertical rotation and angle adjustment are sequentially arranged; the rotating seat (3) is provided with a connecting seat (5), a dust detector (6), and a calibrator (7) via telescopic adjustment components, characterized in that, It also includes a squeezing mechanism and a push-pull mechanism for automatic zero-point calibration. A squeezing mechanism is provided on one side of the connecting seat (5). The squeezing mechanism includes a connecting arm (8), a squeezing arm (10), and a reciprocating drive. The connecting arm (8) is provided on the connecting seat (5). A squeezing arm (10) driven by a reciprocating drive is provided on one side of the connecting arm (8) for repeatedly pressing and blowing air into the airbag (71) of the calibrator (7). A push-pull mechanism is provided on the other side of the connecting arm (8). The push-pull mechanism includes a protective sleeve (17) whose movement amplitude is controlled and adjusted by the push-pull component. The protective sleeve (17) is movably fitted outside the detection hole (61) of the dust detector (6) for covering or opening the detection hole (61) on the dust detector (6). The dust detector (6) integrates a detection probe (60), a main unit (62), and a connecting line (63). The detection probe (60) is detachably snapped into the connecting seat. (5) The detection probe (60) has a detection hole (61) that is perpendicular to and penetrates its axis, used to detect the concentration of dust particles. The main unit (62) is located on one side of the rotating seat (3). A connecting line (63) for signal transmission is connected between the main unit (62) and the detection probe (60). The calibrator (7) includes a connecting tube (70), an air bag (71) and a one-way filter valve (72). One end of the connecting tube (70) is connected to one end of the detection probe (60) through a connecting sleeve (73), and the connecting sleeve (73) is connected to the detection hole (61) to form an air passage. The air bag (71) is connected to the other end of the connecting tube (70) and is connected to it. The connecting tube (70) contains a one-way valve that is connected to the air passage inside the detection probe (60). The air inlet end of the air bag (71) is connected to a one-way filter valve (72) that is connected to its interior, used to control the airflow direction.

2. The mobile dust particle detection device for port environments according to claim 1, characterized in that, The reciprocating drive includes a housing (9), a micro motor (11), a guide sleeve (12), and a rocker arm (13). The housing (9) is provided on one side of the connecting arm (8), and the airbag (71) is located inside the housing (9). The extrusion arm (10) is slidably sleeved on the housing (9). The upper side of the extrusion arm (10) is connected to the guide sleeve (12) with a straight groove. The upper side of the connecting arm (8) is provided with a micro motor (11). The output shaft end of the micro motor (11) is connected to the rocker arm (13), and the end of the rocker arm (13) away from the output shaft of the micro motor (11) extends into the straight groove of the guide sleeve (12). The rocker arm (13) is driven to rotate by the micro motor (11) so as to drive the guide sleeve (12) and the extrusion arm (10) to reciprocate up and down to extrude the airbag (71) and blow air.

3. A mobile dust particle detection device for port environments according to claim 2, characterized in that, The push-pull component includes an electric push rod (14), a push-pull arm (15), and a claw (16). An electric push rod (14) is provided on the other side of the connecting arm (8). The telescopic shaft end of the electric push rod (14) is connected to the push-pull arm (15), and the push-pull arm (15) is slidably sleeved on the connecting arm (8) through the slide groove (150) on it. The end of the push-pull arm (15) is connected to the claw (16), and the claw (16) is semi-enclosed and clamped to the outer wall of the protective sleeve (17). By controlling the extension or retraction of the telescopic shaft of the electric push rod (14), the push-pull arm (15), the claw (16), and the protective sleeve (17) are driven to move synchronously to precisely control the opening range of the adjustment detection hole (61).

4. A mobile dust particle detection device for port environments according to claim 1, characterized in that, The telescopic adjustment component includes a telescopic rod (4), an air pump (27), and an air pipe (28). The telescopic shaft end of the telescopic rod (4) is connected to the connecting seat (5). The outer sleeve of the telescopic rod (4) is fixedly sleeved on the rotating seat (3). The air pump (27) is located on one side of the lower part of the control box (2). The air inlet of the air pump (27) is connected to the air inlet end of the telescopic rod (4) by an air pipe (28).

5. A mobile dust particle detection device for port environments according to claim 1, characterized in that, It also includes a sealing structure, which includes a bearing seat (18), a bushing (180), a sealing cover (19) and a spiral spring (20). The bushing (180) is rotatably connected to the connecting arm (8), and the bearing seat (18) is detachably inserted into the bushing (180). One end of the bearing seat (18) is connected to the sealing cover (19), and the sealing cover (19) is located inside the connecting sleeve (73) for opening or closing the air passage inside the connecting sleeve (73). A spiral spring (20) for providing a reset function is connected between one side of the bearing seat (18) and the connecting arm (8).

6. A mobile dust particle detection device for port environments according to claim 5, characterized in that, It also includes a toggle element, which includes a guide rod (21), an elastic element (22) and a toggle block (23). The guide rod (21) is movably sleeved on one end of the bushing (180) away from the bearing seat (18). The elastic element (22) is sleeved on the guide rod (21). One end of the elastic element (22) is connected to the guide rod (21), and the other end of the elastic element (22) is connected to the bushing (180). The toggle block (23) is connected to the push-pull arm (15). When the push-pull arm (15) and the toggle block (23) are moved synchronously by controlling the electric push rod (14), the toggle block (23) causes the guide rod (21), the bearing seat (18), and the bushing (180) to rotate synchronously, so as to drive the sealing cover (19) to open or close the air passage.

7. A mobile dust particle detection device for port environments according to claim 6, characterized in that, The inner side of the lever (23) is designed with a slanted opening to automatically pass over the guide rod (21) during the return stroke; the elastic coefficient of the spiral spring (20) is greater than that of the elastic element (22).

8. A mobile dust particle detection device for port environments according to claim 1, characterized in that, It also includes an angle adjustment mechanism, which includes a servo motor (24), a rotating shaft (25) and a gear (26). The servo motor (24) is installed on the upper side inside the control box (2). The output shaft of the servo motor (24) is connected to the rotating shaft (25) through a coupling. One end of the rotating shaft (25) is connected to the outer wall of the control box (2) through a bearing. The rotating rod of the rotating seat (3) and the rotating shaft (25) are respectively connected to the meshing gears (26) through a key. By controlling the servo motor (24) to drive the rotating shaft (25) and the gear (26) to rotate, the rotating seat (3), the telescopic adjustment component, the dust detector (6) and the calibrator (7) can be rotated synchronously to adjust the tilt angle.

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