Online atmospheric particulate detection device

Abstract

The utility model belongs to the technical field of atmosphere detection, and particularly relates to an on-line atmosphere detection device for atmospheric particulates, which comprises a shell and a detection device body, and the detection device body is mounted at the inner bottom end of the shell. According to the online atmospheric particulate detection device, when atmospheric particulates are detected, an output shaft of a motor is firstly started to rotate to drive a second threaded rod to rotate on the inner side of a second sleeve rod, and the second sleeve rod is driven to move on the outer side of the second threaded rod until a detection device body in an upper end shell moves to a proper detection height; then an air pump in an L-shaped pipe is started, external air is pumped into the L-shaped pipe from an air inlet hopper, the air is filtered by a drying agent between a second filter screen and a third filter screen in the L-shaped pipe and then enters an adjusting pipe and a connecting pipe, and the air entering the connecting pipe enters a detection device body from the other end to be detected; and meanwhile, a detected result can be displayed through a display screen at the front end.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere detection, in particular to an online atmospheric particle detection device. Background Art

[0002] Nowadays, people pay more and more attention to their living environment, especially the quality of the atmosphere, which prompts people to pay more and more attention to the air quality. The atmospheric detection device refers to the point-by-point detection of the main pollutants in the atmosphere of a region.

[0003] Existing atmospheric detection devices cannot effectively prevent insects and cannot prevent rainwater or other debris from entering the atmospheric detection equipment, resulting in errors in the data detected by the atmospheric detection equipment. In addition, it was found during use that the existing atmospheric detection devices cannot be highly adjusted according to needs, which reduces the practicality and flexibility of the atmospheric detection devices.

[0004] For example, the atmospheric detection device disclosed in Chinese patent CN211179721U rotates the adjustment tube according to the position of the detection equipment to make the retaining ring face the filter to prevent flying insects, rainwater and other debris from entering and affecting the data detected by the atmospheric detection equipment. The housing can be rotated to rotate the detector, and the height of the detector can be raised and lowered by the screw, thereby improving the practicality and flexibility of the detector.

[0005] However, in rainy weather, the atmosphere contains a high amount of water vapor, so the air entering the detection device also contains a large amount of water vapor, which will affect the detection accuracy of the detection device.

[0006] Therefore, we urgently need to provide an online atmospheric particulate matter detection device that prevents excessive water vapor from entering the detection device. Utility Model Content

[0007] The purpose of the present utility model is to provide an online atmospheric detection device for atmospheric particulate matter to solve the problem raised in the above background technology that in rainy weather, the atmosphere contains a high amount of water vapor, and the air entering the detection device also contains a large amount of water vapor, which affects the detection accuracy of the detection device.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an online atmospheric detection device for atmospheric particulate matter, comprising a shell and a detection device body, the detection device body being installed at the inner bottom end of the shell, a display screen being installed at the front end of the shell, the detection device body and the display screen being electrically connected, and an air intake mechanism being connected to the outer end of the shell.

[0009] The air inlet mechanism comprises an L-shaped pipe arranged on the right side of the shell, the lower end of the L-shaped pipe is fixedly connected with an air inlet hopper, the upper left end of the L-shaped pipe is fixedly connected with an adjusting pipe, the lower left end of the L-shaped pipe is fixedly connected with a connecting pipe, the inner side of the left end of the adjusting pipe is fixedly connected with a first filter screen, the inner side of the upper right end of the L-shaped pipe is fixedly connected with a second filter screen, the inside of the second filter screen is connected with a feeding pipe, the inner side of the lower right end of the L-shaped pipe is fixedly connected with a third filter screen, the inside of the third filter screen is connected with a discharging pipe, and the other end of the feeding pipe and the third filter screen is threadedly connected with a cover.

[0010] Further improvements are that the inside of the L-shaped pipe is provided with an air pump, the right end of the detection device body is fixedly connected with the left end of the connecting pipe, the lower end of the feeding pipe is fixedly arranged to the inside of the second filter screen at the middle position, the upper end of the feeding pipe is arranged above the right end of the L-shaped pipe, the upper end of the discharging pipe is fixedly arranged to the inside of the third filter screen at the middle position, and the lower end of the discharging pipe is arranged at the left side of the lower end of the air inlet hopper, so that the drying agent poured into the feeding pipe will slide down between the second filter screen and the third filter screen, and the drying agent between the second filter screen and the third filter screen will slide into the discharging pipe and then slide out of the other end of the discharging pipe.

[0011] Further improvements are that the inside of the adjusting pipe is connected with an adjusting mechanism, the adjusting mechanism comprises a U-shaped plate fixedly connected to the inner side of the adjusting pipe, a bearing is fixedly connected to the inside of the U-shaped plate at the middle position of the bottom, the inner side of the bearing is fixedly connected with a first threaded rod, the upper end of the first threaded rod is welded with a rotating handle, and the outer end of the first threaded rod is connected with a cover plate.

[0012] Further improvements are that a sliding groove is arranged in the adjusting pipe above the U-shaped plate, the front and back sides of the cover plate are slidingly connected with the front and back ends of the inner side of the U-shaped plate, and the outer side of the cover plate is slidingly connected with the inner side of the sliding groove, so that when the cover plate moves, it can only slide in the inner side of the U-shaped plate and the inner side of the sliding groove.

[0013] Further improvements are that a threaded hole is vertically arranged in the middle position of the inside of the cover plate, and the outer side of the first threaded rod is threadedly connected with the inner side of the threaded hole, so that when the rotating handle is rotated to drive the first threaded rod to rotate in the threaded hole, the cover plate can be driven to slide along the inner side of the U-shaped plate.

[0014] Further improvements are that the lower end of the shell is provided with a supporting mechanism, the supporting mechanism comprises a base arranged below the shell, first sleeve rods are welded at the lower sides of the four corners of the shell, limiting rods are welded at the upper sides of the four corners of the base, a second sleeve rod is welded at the middle position of the lower side of the shell, a motor is fixedly connected to the inside of the base at the middle position, and a second threaded rod is fixedly connected to the output shaft of the motor at the upper end.

[0015] A further improvement is that the inner side of the first set of rods is slidingly connected to the outer side of the limit rod, the inner side of the second set of rods is provided with an internal thread, and the outer side of the second threaded rod is threadedly connected to the inner side of the second set of rods, so that when the motor is started and its output shaft rotates to drive the second threaded rod located on the inner side of the second set of rods to rotate, the second set of rods located on the outer side of the second threaded rod can be moved.

[0016] In summary, the present application discloses an online atmospheric detection device for atmospheric particulate matter.

[0017] This technical solution starts the air pump in the L-shaped tube to suck the air at the outer end from the air inlet hopper into the L-shaped tube. When passing between the second filter and the third filter inside the L-shaped tube, the moisture in the air can be absorbed by the desiccant in the second filter and the third filter, so that the air to be tested entering the detection device body from the connecting tube remains dry, ensuring the accuracy of the atmospheric detection results. After the desiccant inside the second filter and the third filter has been used for a period of time, the cover at the outer end of the discharge tube is first opened to discharge the desiccant between the second filter and the third filter from the discharge tube, and then the cover at the outer end of the feed tube is opened to pour the desiccant from the feed tube into the space between the second filter and the third filter. The desiccant between the second filter and the third filter can be replaced, and the desiccant inside the L-shaped tube will become ineffective due to long-term use.

[0018] Furthermore, by rotating the rotating handle to drive the first threaded rod in the threaded hole to rotate, the sealing plate can be driven to slide along the inner side of the U-shaped plate, so that the distance between the bottom end of the sealing plate and the inner bottom end of the U-shaped plate changes, thereby changing the ventilation diameter in the regulating tube, thereby changing the flow rate of the airflow entering the regulating tube and the connecting tube through the L-shaped tube, so as to adjust the flow rate of the airflow entering the connecting tube according to the air intake required by the detection device body.

[0019] Furthermore, by starting the motor and rotating its output shaft to drive the second threaded rod located inside the second set of rods to rotate, the second set of rods located outside the second threaded rods can be moved, and at the same time, the first set of rods located outside the limit rods can be moved, thereby driving the height of the outer shell to move, so that the detection height of the detection device body can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the outer end of the L-shaped tube of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the regulating tube of the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the U-shaped plate of the utility model;

[0025] Figure 6 This is a structural diagram of the first filter screen of the present invention;

[0026] Figure 7 This is a structural diagram of the support mechanism of the present invention.

[0027] In the figure: 1. Housing; 2. Detection device body; 3. Display screen; 401. L-shaped tube; 402. Air inlet hopper; 403. Adjustment tube; 404. Connecting tube; 405. First filter; 406. Second filter; 407. Feed pipe; 408. Third filter; 409. Discharge pipe; 410. Cover; 501. U-shaped plate; 502. Bearing; 503. First threaded rod; 504. Rotating handle; 505. Cover plate; 601. Base; 602. First set of rods; 603. Limit rod; 604. Second set of rods; 605. Motor; 606. Second threaded rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 The utility model provides a technical solution: an online atmospheric detection device for atmospheric particulate matter, comprising a shell 1 and a detection device body 2, the detection device body 2 being installed at the inner bottom end of the shell 1, a display screen 3 being installed at the front end of the shell 1, the detection device body 2 and the display screen 3 being electrically connected, and an air intake mechanism being connected to the outer end of the shell 1.

[0030] The air intake mechanism includes an L-shaped tube 401 arranged on the right side of the outer shell 1, the lower end of the L-shaped tube 401 is fixedly connected to the air intake hopper 402, the upper left end of the L-shaped tube 401 is fixedly connected to the regulating tube 403, the lower left end of the L-shaped tube 401 is fixedly connected to the connecting tube 404, the inner side of the left end of the regulating tube 403 is fixedly connected to the first filter screen 405, the upper inner side of the right end part of the L-shaped tube 401 is fixedly connected to the second filter screen 406, the interior of the second filter screen 406 is connected to the feed pipe 407, the lower inner side of the right end part of the L-shaped tube 401 is fixedly connected to the third filter screen 408, the interior of the third filter screen 408 is connected to the discharge pipe 409, and the other ends of the feed pipe 407 and the third filter screen 408 are threadedly connected to the cover 410.

[0031] The inside of the L-shaped pipe 401 is provided with an air pump, the right end of the detection device body 2 is fixedly connected with the left end of the connecting pipe 404, the lower end of the feeding pipe 407 is fixedly connected with the inside of the second filter screen 406 at the middle position, the upper end of the feeding pipe 407 is located above the right end of the L-shaped pipe 401, the upper end of the discharging pipe 409 is fixedly connected with the inside of the third filter screen 408 at the middle position, and the lower end of the discharging pipe 409 is located at the left side of the lower end of the air inlet 402. Thus, the drying agent poured into the feeding pipe 407 will slide down between the second filter screen 406 and the third filter screen 408, and the drying agent between the second filter screen 406 and the third filter screen 408 will slide down into the discharging pipe 409 and then slide out from the other end of the discharging pipe 409.

[0032] The inside of the adjusting pipe 403 is connected with an adjusting mechanism, the adjusting mechanism comprises a U-shaped plate 501 fixedly connected with the inside of the adjusting pipe 403, a bearing 502 fixedly connected with the inside of the U-shaped plate 501 at the middle position of the bottom end, a first threaded rod 503 fixedly connected with the inside of the bearing 502, a rotating handle 504 welded with the upper end of the first threaded rod 503, an enclosing plate 505 connected with the outer end of the first threaded rod 503, and a sliding groove formed in the adjusting pipe 403 above the U-shaped plate 501. The front and rear sides of the enclosing plate 505 are slidably connected with the front and rear ends of the inside of the U-shaped plate 501, and the outside of the enclosing plate 505 is slidably connected with the inside of the sliding groove. Thus, when the enclosing plate 505 moves, it can only slide in the inside of the U-shaped plate 501 and the inside of the sliding groove, which limits the movement of the enclosing plate 505.

[0033] A threaded hole is vertically formed in the middle position of the inside of the enclosing plate 505, and the outside of the first threaded rod 503 is threadedly connected with the inside of the threaded hole. Thus, when the rotating handle 504 drives the first threaded rod 503 to rotate in the threaded hole, the enclosing plate 505 will slide along the inside of the U-shaped plate 501, so that the distance between the bottom end of the enclosing plate 505 and the bottom end of the inside of the U-shaped plate 501 changes, thereby changing the ventilation diameter in the adjusting pipe 403 to change the flow rate of the airflow from the L-shaped pipe 401 into the adjusting pipe 403 and the connecting pipe 404.

[0034] A supporting mechanism is provided at the lower end of the shell 1, and the supporting mechanism includes a base 601 arranged below the shell 1, a first set of rods 602 are welded at the four corners of the lower side of the shell 1, and a limiting rod 603 is welded at the four corners of the upper side of the base 601. A second set of rods 604 is welded at the middle position of the lower side of the shell 1, and a motor 605 is fixedly connected to the middle position inside the base 601. The upper end of the output shaft of the motor 605 is fixedly connected to the second threaded rod 606. The inner side of the first set of rods 602 is slidably connected to the outer side of the limiting rod 603, and the inner side of the second set of rods 604 is provided with an internal thread, and the outer side of the second threaded rod 606 is threadedly connected to the inner side of the second set of rods 604. When the motor 605 is started and its output shaft rotates to drive the second threaded rod 606 located inside the second set rod 604 to rotate, the second set rod 604 can be moved to the outside of the second threaded rod 606, and at the same time, the first set rod 602 is moved to the outside of the limit rod 603, thereby driving the height of the shell 1 to move, so that the detection height of the detection device body 2 can be adjusted.

[0035] Working principle: When detecting atmospheric particulate matter, first start the motor 605 and rotate its output shaft to drive the second threaded rod 606 located on the inside of the second set rod 604 to rotate, and drive the second set rod 604 located on the outside of the second threaded rod 606 to move until the detection device body 2 inside the upper end shell 1 moves to a suitable detection height, then start the air pump in the L-shaped tube 401, and draw the external air into the L-shaped tube 401 from the air inlet hopper 402. After being filtered by the desiccant between the second filter 406 and the third filter 408 in the L-shaped tube 401, it enters the regulating tube 403 and the connecting tube 404. The air entering the connecting tube 404 will enter the detection device body 2 from the other end for detection, and the detection results will be displayed on the front display screen 3.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. An online atmospheric detection device for atmospheric particulate matter, comprising a housing (1) and a detection device body (2), wherein the detection device body (2) is mounted at the inner bottom end of the housing (1), and is characterized in that: A display screen (3) is installed at the front end of the housing (1), the detection device body (2) and the display screen (3) are electrically connected, and an air intake mechanism is connected to the outer end of the housing (1); The air intake mechanism comprises an L-shaped tube (401) arranged on the right side of the housing (1); the lower end of the L-shaped tube (401) is fixedly connected to an air intake hopper (402); the upper left end of the L-shaped tube (401) is fixedly connected to an adjusting tube (403); the lower left end of the L-shaped tube (401) is fixedly connected to a connecting tube (404); the inner left end of the adjusting tube (403) is fixedly connected to a first filter (405); the L-shaped tube (401) is fixedly connected to an air intake hopper (402); the upper left end of the L-shaped tube (401) is fixedly connected to an adjusting tube (403); the lower left end of the L-shaped tube (401) is fixedly connected to a connecting tube (404); the inner left end of the adjusting tube (403) is fixedly connected to a first filter (405); 01) is fixedly connected to the upper inner side of the right end portion of the L-shaped tube (401), and the interior of the second filter screen (406) is connected to a feed pipe (407). A third filter screen (408) is fixedly connected to the lower inner side of the right end portion of the L-shaped tube (401), and the interior of the third filter screen (408) is connected to a discharge pipe (409). The other ends of the feed pipe (407) and the third filter screen (408) are threadedly connected to a sealing cover (410).

2. The online atmospheric particulate matter detection device according to claim 1, characterized in that: An air pump is installed inside the L-shaped tube (401), the right end of the detection device body (2) is fixedly connected to the left end of the connecting tube (404), the outer side of the lower end of the feeding tube (407) is fixed to the inner middle position of the second filter (406), the upper end of the feeding tube (407) is located above the right end of the L-shaped tube (401), the outer side of the upper end of the discharge tube (409) is fixed to the inner middle position of the third filter (408), and the lower end of the discharge tube (409) is located to the left of the lower end of the air inlet hopper (402).

3. The online atmospheric particulate matter detection device according to claim 1, characterized in that: The regulating tube (403) is internally connected to an regulating mechanism, the regulating mechanism comprising a U-shaped plate (501) fixedly connected to the inner side of the regulating tube (403), a bearing (502) fixedly connected to the middle position of the bottom end of the U-shaped plate (501), a first threaded rod (503) fixedly connected to the inner side of the bearing (502), a rotating handle (504) welded to the upper end of the first threaded rod (503), and a sealing plate (505) connected to the outer end of the first threaded rod (503).

4. The online atmospheric particulate matter detection device according to claim 3, characterized in that: A sliding groove is provided inside the regulating tube (403) above the U-shaped plate (501), the front and rear sides of the sealing plate (505) are slidably connected to the front and rear ends of the inner side of the U-shaped plate (501), and the outer side of the sealing plate (505) is slidably connected to the inner side of the sliding groove.

5. The online atmospheric particulate matter detection device according to claim 3, characterized in that: A threaded hole is vertically opened in the middle of the sealing plate (505), and the outer side of the first threaded rod (503) is threadedly connected to the inner side of the threaded hole.

6. The online atmospheric particulate matter detection device according to claim 1, characterized in that: A support mechanism is provided at the lower end of the housing (1), the support mechanism comprising a base (601) provided below the housing (1), a first set of rods (602) welded at the four corners of the lower side of the housing (1), a limiting rod (603) welded at the four corners of the upper side of the base (601), a second set of rods (604) welded at the middle position of the lower side of the housing (1), a motor (605) fixedly connected to the middle position inside the base (601), and a second threaded rod (606) fixedly connected to the upper end of the output shaft of the motor (605).

7. The online atmospheric particulate matter detection device according to claim 6, characterized in that: The inner side of the first sleeve rod (602) is slidably connected to the outer side of the limiting rod (603), the inner side of the second sleeve rod (604) is provided with an internal thread, and the outer side of the second threaded rod (606) is threadedly connected to the inner side of the second sleeve rod (604).

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