Ambient air sampling equipment with intelligent rainproof function

Abstract

The utility model discloses ambient air sampling equipment with an intelligent rainproof function, and relates to the technical field of air sampling equipment, the ambient air sampling equipment comprises an equipment main body, an air collecting mechanism is installed in the middle of the top end of the equipment main body, and rainproof covers are installed on the two sides of the air collecting mechanism; the two sides of the rainproof covers are fixedly provided with connecting blocks, the connecting blocks and the upper end of the equipment body are in sliding limiting, the upper end of the interior of the equipment body is provided with a displacement driving device, the two rainproof covers move oppositely at the same speed, a supporting seat is arranged below the equipment body, and the back of the supporting seat is fixedly provided with a fixing rod in a welded mode. A rainfall sensor is mounted at the top end of the fixing rod, and the problem that water easily permeates into an air collecting mechanism to pollute a sample when the environment air sampling equipment is in a rainy day is solved.

Description

Technical Field

[0001] This utility model relates to the field of air sampling equipment technology, specifically to an environmental air sampling device with intelligent rainproof function. Background Technology

[0002] Ambient air sampling equipment is a specialized instrument used to collect samples of various pollutants in ambient air. Common types include air samplers, which use a power device to draw in a certain amount of air and pass it through a collection medium such as a filter membrane or absorbent liquid to capture gaseous pollutants and particulate matter in the air for subsequent analysis and detection of the type and concentration of pollutants. There are also passive samplers, which rely on principles such as molecular diffusion to collect pollutants in the air without the need for a power drive. They are characterized by simple operation and low cost.

[0003] For example, the Chinese authorized patent CN209139407U, entitled "An Automatic Ambient Air Sampling Device," includes a main body. The main body has a shelf inside its cavity, which is fixedly connected to the main body. A box is located on top of the shelf. The inner cavity of the box has a first partition and a second partition arranged sequentially from top to bottom, with the second partition fixedly connected to the box. A storage cavity is located above the first partition, and a cleaning cavity is located between the first and second partitions. A drive motor is located below the second partition. A threaded rod is installed at the output end of the drive motor, and the top of the threaded rod is movably connected to the box via a bearing. A threaded hole is provided on the first partition, and the threaded hole is movably connected to the threaded rod. A nozzle is installed at the bottom of the first partition, and a purification box is located below the nozzle.

[0004] While the aforementioned existing technologies can collect outdoor air, water can easily seep into the air collection mechanism during rainy weather, contaminating the samples. Although there are air collection devices on the market with waterproof covers, they require manual adjustment. On the one hand, the waterproof cover cannot be opened in time during rainy weather, and on the other hand, the human delay means that the device cannot participate in air sampling in time after the rain stops. Therefore, they do not meet the current needs. To address this, we propose an environmental air sampling device with intelligent rainproof function. Utility Model Content

[0005] The purpose of this invention is to provide an ambient air sampling device with intelligent rainproof function, so as to solve the problem mentioned in the background art that water can easily seep into the air collection mechanism and contaminate the sample in rainy weather.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ambient air sampling device with intelligent rainproof function, comprising a device body, an air collection mechanism installed at the middle position of the top of the device body, rain covers installed on both sides of the air collection mechanism, and connecting blocks fixedly installed on both sides of the rain covers, with the connecting blocks slidingly limited to the upper end of the device body, a displacement driving device provided at the upper end inside the device body to make the two rain covers move towards each other at the same speed, a support base provided at the bottom of the device body, a fixing rod welded and fixed to the back of the support base, and a rain sensor installed at the top of the fixing rod.

[0007] Preferably, the displacement driving device includes two double-threaded transmission rods, one end of which is rotatably connected to the main body of the equipment. Both ends of the double-threaded transmission rods are equipped with threaded sliding blocks, and one end face of the sliding block is fixed to the connecting block.

[0008] Preferably, a dual-axis motor is fixedly installed on one side of the upper part of the main body of the equipment. The output end of the dual-axis motor is fixedly provided with a driving bevel gear, and both ends of the double threaded transmission rod are fixedly provided with a driven bevel gear that meshes with the driving bevel gear.

[0009] Preferably, the main body of the device has a built-in microcontroller, the signal output terminal of the rain sensor is connected to the microcontroller, and the output terminal of the microcontroller is connected to the input terminal of the dual-axis motor.

[0010] Preferably, a groove is provided on the inner side of one side of the rain cover, and a rubber strip is provided on the inner side of the other side of the rain cover, with the rubber strip being inserted into the groove.

[0011] Preferably, the support base has an internal sliding limit lifting seat, and the lifting seat has a screw hole inside. A servo motor is fixedly installed at the lower end inside the support base. The output shaft of the servo motor is equipped with a stud extending into the lifting seat, and the stud is threadedly connected to the screw hole of the lifting seat.

[0012] Preferably, a mounting base is welded and fixed to the top of the lifting seat, and the main body of the equipment is fixed to the mounting base by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model can automatically open and close the rain cover. By installing a rain sensor on the fixed rod, based on the piezoelectric principle, it can accurately sense the pressure changes caused by raindrop impacts and convert them into electrical signals. The sensor has built-in signal amplification and filtering circuits to process weak electrical signals. If rain is detected, the rain sensor sends the signal to the microcontroller, which then activates the dual-axis motor. The output shaft of the dual-axis motor drives the active bevel gear to rotate. Under the meshing of the active bevel gear, it drives two double-threaded transmission rods to rotate synchronously. The friction between the external threads and the sliding block converts the rotational motion into linear motion. This motion is then driven by the connecting block fixed to the sliding block to move the rain cover towards the air collection mechanism until the two rain covers close together, thus shielding the air collection mechanism. This ensures that the sampling equipment can operate normally and stably in rainy weather, avoids rain interference with the sampling results, and improves the accuracy of the sampling data. The entire process is highly automated, responds quickly, and requires no manual intervention, greatly improving the timeliness and efficiency of the equipment in dealing with rainy weather.

[0015] 2. This utility model features a groove on the inner side of one rain cover and a rubber strip inside the other. When the two rain covers are closed at the same speed, the rubber strip is inserted into the groove. Due to the elasticity of the rubber strip, it compresses the surrounding area during the process of entering the groove, thereby improving the sealing performance of the two rain covers after they are closed. This effectively prevents rainwater from entering the interior through gaps, so that the internal air collection mechanism will not be affected under any severe weather conditions.

[0016] 3. This utility model incorporates a lifting structure in the main body of the device. The output shaft of the servo motor drives the stud to rotate, and the external thread of the stud rubs against the internal thread of the lifting seat. Combined with the guiding effect of the inner cavity of the support seat on the lifting seat, the lifting seat drives the main body of the device to move vertically. Operators can conveniently and accurately adjust the height of the device according to actual monitoring needs. Whether it is necessary to collect low-altitude air samples affected by ground dust and vehicle exhaust near the ground, or to raise the device to collect air from different airflow layers at higher altitudes, this can be easily achieved, greatly expanding the applicable scenarios of the device and meeting diverse environmental monitoring tasks. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the support base of this utility model;

[0019] Figure 3 This is a perspective view of the main body of the device according to this utility model;

[0020] Figure 4This is a schematic diagram of the transmission structure of the rain cover of this utility model.

[0021] In the diagram: 1. Support base; 2. Lifting base; 3. Mounting base; 4. Fixing rod; 5. Rain sensor; 6. Main body of the equipment; 7. Air collection mechanism; 8. Rain cover; 9. Connecting block; 10. Servo motor; 11. Stud; 12. Groove; 13. Rubber strip; 14. Double threaded transmission rod; 15. Sliding block; 16. Dual-axis motor; 17. Driving bevel gear; 18. Driven bevel gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 An embodiment of this utility model provides an environmental air sampling device with intelligent rainproof function, including a device body 6, an air collection mechanism 7 installed at the middle position of the top of the device body 6, rain covers 8 installed on both sides of the air collection mechanism 7, and connecting blocks 9 fixedly installed on both sides of the rain covers 8, and the connecting blocks 9 are slidably limited to the upper end of the device body 6. A displacement driving device is provided at the upper end inside the device body 6 to make the two rain covers 8 move towards each other at the same speed. A support base 1 is provided at the bottom of the device body 6, and a fixing rod 4 is welded and fixed to the back of the support base 1. A rain sensor 5 is installed at the top of the fixing rod 4. A microcontroller is built into the device body 6, the signal output terminal of the rain sensor 5 is connected to the microcontroller, and the output terminal of the microcontroller is connected to the input terminal of the dual-axis motor 16.

[0024] In rainy weather, the rain cover 8 can close in time to shield the air collection mechanism, preventing rainwater from entering the equipment and avoiding problems such as short circuits of electronic components due to moisture and rust and corrosion of metal parts. This effectively extends the service life of the equipment, reduces maintenance costs and replacement frequency, improves the reliability and stability of the equipment, and ensures long-term, continuous and stable environmental air sampling.

[0025] Please see Figure 3 and Figure 4 The displacement drive device includes two double-threaded transmission rods 14, one end of which is rotatably connected to the main body 6 of the equipment. Both ends of the double-threaded transmission rods 14 are equipped with threaded sliding blocks 15, and one end face of the sliding block 15 is fixed to the connecting block 9. A dual-axis motor 16 is fixedly installed on one side of the upper end inside the main body 6. The output end of the dual-axis motor 16 is fixedly provided with a driving bevel gear 17. Both ends of the double-threaded transmission rods 14 are fixedly provided with driven bevel gears 18 that mesh with the driving bevel gears 17.

[0026] If rain is detected, the rain sensor 5 sends a signal to the microcontroller, which then activates the dual-axis motor 16. The output shaft of the dual-axis motor 16 drives the active bevel gear 17 to rotate. Under the meshing of the active bevel gear 18, the active bevel gear 17 drives the two double-threaded transmission rods 14 to rotate synchronously. The friction between the external threads and the sliding block 15 converts the rotational motion into linear motion. This motion is then driven by the connecting block 9, which is fixed to the sliding block 15, to move the rain cover 8 toward the air collection mechanism 7 until the two rain covers 8 close together, thus shielding the air collection mechanism 7.

[0027] Please see Figure 3 One side of the rain cover 8 has a groove 12 on its inner side, and the other side of the rain cover 8 has a rubber strip 13 on its inner side. The rubber strip 13 is inserted into the groove 12. When the two rain covers 8 are closed at the same speed, the rubber strip 13 will be inserted into the inside of the groove 12. Since the rubber strip 13 has a certain elasticity, it will squeeze the surrounding area when it enters the groove 12, thereby improving the sealing performance of the two rain covers 8 after they are closed. This effectively prevents rainwater from entering the interior through gaps. Therefore, no matter what kind of severe weather conditions, it will not affect the internal air collection mechanism 7.

[0028] Please see Figure 2 The support base 1 has an internal sliding limit lifting seat 2, and the lifting seat 2 has a screw hole inside. A servo motor 10 is fixedly installed at the lower end inside the support base 1. The output shaft of the servo motor 10 is fitted with a stud 11 that extends into the lifting seat 2, and the stud 11 is threadedly connected to the screw hole of the lifting seat 2. A mounting base 3 is welded and fixed to the top of the lifting seat 2, and the main body 6 of the equipment is fixed to the mounting base 3 by bolts. The output shaft of the servo motor 10 can drive the stud 11 to rotate. The external thread of the stud 11 rubs against the internal screw hole of the lifting seat 2. Combined with the guiding effect of the inner cavity of the support base 1 on the lifting seat 2, the lifting seat 2 drives the main body 6 to make vertical displacement, which greatly expands the applicable scenarios of the equipment and meets diverse environmental monitoring tasks.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An ambient air sampling device with intelligent rainproof function, comprising a main body (6), characterized in that: An air collection mechanism (7) is installed at the middle position of the top of the main body of the device (6). Rain covers (8) are installed on both sides of the air collection mechanism (7). Connecting blocks (9) are fixedly installed on both sides of the rain covers (8). The connecting blocks (9) slide and limit the upper end of the main body of the device (6). A displacement driving device is provided at the upper end of the inside of the main body of the device (6) so that the two rain covers (8) move towards each other at the same speed. A support base (1) is provided below the main body of the device (6). A fixing rod (4) is welded and fixed on the back of the support base (1). A rain sensor (5) is installed at the top of the fixing rod (4).

2. An ambient air sampling device with intelligent rainproof function according to claim 1, characterized in that: The displacement driving device includes two double-threaded transmission rods (14), and one end of the double-threaded transmission rod (14) is rotatably connected to the main body of the equipment (6). Both ends of the double-threaded transmission rod (14) are equipped with threaded sliding blocks (15), and one end face of the sliding block (15) is fixed to the connecting block (9).

3. An ambient air sampling device with intelligent rainproof function according to claim 2, characterized in that: A dual-axis motor (16) is fixedly installed on one side of the upper part of the main body of the equipment (6). The output end of the dual-axis motor (16) is fixedly provided with a driving bevel gear (17). Both ends of the double threaded transmission rod (14) are fixedly provided with a driven bevel gear (18) that meshes with the driving bevel gear (17).

4. An ambient air sampling device with intelligent rainproof function according to claim 2, characterized in that: The main body (6) of the device has a built-in microcontroller. The signal output terminal of the rain sensor (5) is connected to the microcontroller, and the output terminal of the microcontroller is connected to the input terminal of the dual-axis motor (16).

5. An ambient air sampling device with intelligent rainproof function according to claim 1, characterized in that: A groove (12) is provided on the inner side of one side of the rain cover (8), and a rubber strip (13) is provided on the inner side of the other side of the rain cover (8), and the rubber strip (13) is inserted into the groove (12).

6. An ambient air sampling device with intelligent rainproof function according to claim 1, characterized in that: The support base (1) has an internal sliding limit lifting seat (2), and the lifting seat (2) has a screw hole inside. A servo motor (10) is fixedly installed at the lower end inside the support base (1). The output shaft of the servo motor (10) is equipped with a stud (11) extending into the lifting seat (2), and the stud (11) is threadedly connected to the screw hole of the lifting seat (2).

7. An ambient air sampling device with intelligent rainproof function according to claim 6, characterized in that: The top of the lifting seat (2) is welded and fixed with a mounting seat (3), and the main body of the equipment (6) is fixed to the mounting seat (3) by bolts.

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