VOCS online monitor

Abstract

The invention relates to the technical field of environment monitoring equipment, and discloses a VOCS online monitor, which comprises a monitor assembly, the monitor assembly comprises a monitor body, the outer surface of the monitor body is fixedly connected with a display screen, and the bottom of the monitor body is fixedly connected with a bearing rod. Through cooperative operation of the monitor assembly and the filtering assembly, a collecting pipe is inserted into the input end of a dust collection pump, a filtering net is located at the front end of a monitoring groove to achieve preliminary filtering, a locking base is inserted into a locking groove and pushes a fixing base to reset under the action of a spring damper to form interlocking, and a reset rod slides along a limiting groove to remove interlocking; the effect of stable installation and convenient disassembly and assembly of the filter structure is driven, so that large-particle dust and impurities in external air are effectively intercepted, pollutants are prevented from entering the monitor body to influence the monitoring precision, meanwhile, it is ensured that the filter screen does not loosen or shift in the monitoring process, the structural stability and maintenance convenience of the device are improved, and the monitoring efficiency is improved. The service life of the monitor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring equipment technology, and in particular to an online VOCs monitoring instrument. Background Technology

[0002] With the increasing demands for real-time and accurate VOCs monitoring in areas such as industrial environmental supervision, air pollution prevention and control, and smart factory construction, online VOCs monitoring instruments are needed for continuous online monitoring and treatment of VOCs emissions from chemical industrial parks, painting workshops, printing companies, oil refining plants, warehousing and logistics centers, and other locations. In practical use, VOCs online monitors with similar structures still have many shortcomings. For example, the air intake filter structure of traditional VOCs online monitors is mostly fixed or threaded, which is troublesome to disassemble and clean. Moreover, the filter components are easily clogged by dust after long-term use, resulting in a decrease in air intake and a deterioration in monitoring accuracy. At the same time, traditional VOCs online monitors are mostly fixed cross-sectional areas, which cannot adjust the air intake according to changes in VOCs concentration. The response is lagging at high concentrations and easily affected by airflow fluctuations at low concentrations. Therefore, it is necessary to design a VOCs online monitor. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides an online VOCs monitoring instrument.

[0004] This invention is achieved using the following technical solution: an online VOCs monitor, comprising a monitor assembly, the monitor assembly including a monitor body, a display screen fixedly connected to the outer surface of the monitor body, a support rod fixedly connected to the bottom of the monitor body, a monitoring slot formed inside the monitor body, a dust pump fixedly connected inside the monitoring slot, and further comprising: A filter assembly, the filter assembly including a manifold inserted into the input end of a vacuum pump, a locking seat fixedly connected to the top of the manifold, and the locking seat fixedly connected to the inside of the monitoring tank via a fixing seat; An adjustment assembly, comprising a dust-blocking plate rotatably connected inside the manifold, wherein a rotating plate is fixedly connected to the outer surface of the dust-blocking plate via a connecting plate; A lifting assembly, comprising a mounting bracket fixedly connected to the outer surface of the monitor body, wherein a connecting bracket is movably mounted inside the mounting bracket via a cylinder; A limiting component, comprising a limiting rod fixedly connected to the front end of the monitoring instrument body via a mounting base, wherein a rotating plate is rotatably connected to the outer surface of the limiting rod.

[0005] As a further improvement to the above solution, the output end of the vacuum pump is fixedly connected to an output pipe, the output pipe is fixedly connected to the input end of the monitoring instrument body, the input end of the vacuum pump is connected to a manifold, and the front end of the manifold is fixedly connected to a filter screen.

[0006] The above technical solution enables the generation of air intake filtration and stable airflow delivery, thereby intercepting large particulate impurities before the air enters the monitoring instrument body, reducing the impact of pollutants on the monitoring components, while ensuring a fixed airflow path and stable air intake, providing a clean air source for subsequent accurate monitoring.

[0007] As a further improvement to the above solution, a locking seat is fixedly connected to the top of the manifold, and a locking groove is provided on the top of the locking seat inside the monitor body. A movable groove is provided on the inner wall of the locking groove, and a spring damper is fixedly connected to the inner wall of the locking groove.

[0008] The above technical solution enables the formation of a locking and positioning structure for the filter assembly, allowing the manifold to enter a preset locking position after insertion. The elastic force of the spring damper provides clamping force for subsequent interlocking, improving the reliability and positioning accuracy of the filter assembly installation.

[0009] As a further improvement to the above solution, the bottom of the spring damper is fixedly connected to a fixed seat, the fixed seat is slidably installed inside the movable groove, and a reset rod is fixedly connected to the outer surface of the fixed seat. The reset rod is slidably installed inside the limiting groove, and the limiting groove is opened inside the monitoring instrument body.

[0010] The above technical solution enables the automatic interlocking and manual unlocking of the filter components, thereby achieving stable installation and convenient disassembly of the filter screen, preventing the filter screen from loosening during monitoring, simplifying maintenance operations, and improving the ease of use of the device.

[0011] As a further improvement to the above solution, a rotating rod is rotatably connected inside the manifold, a dust-blocking plate is fixedly connected at the center of the outer surface of the rotating rod, and connecting plates are fixedly connected to both sides of the outer surface of the rotating rod.

[0012] The above technical solution enables the formation of an angle adjustment structure for the air intake channel, allowing the dust barrier to rotate synchronously with the rotating rod, thereby adjusting the cross-sectional area of ​​the air intake channel and providing a suitable air intake control method for monitoring different concentrations of VOCs.

[0013] As a further improvement to the above solution, the multiple connecting plates are connected by a mounting plate. An adjusting plate is fixedly connected to the side of the outer surface of the connecting plate away from the mounting plate. A connecting rod is fixedly connected to the inner wall of the adjusting plate. A rotating plate is fixedly connected to the center of the outer surface of the connecting rod.

[0014] The above technical solution enables the coordinated adjustment of multiple dust-blocking plates, thereby ensuring that multiple dust-blocking plates can operate synchronously, making the air intake channel adjustment more uniform and stable, avoiding local airflow turbulence, and improving the consistency and reliability of air intake adjustment.

[0015] As a further improvement to the above solution, a movable rod is rotatably connected to the inner wall of the mounting bracket, a worm gear is fixedly connected to the outer surface of the movable rod, a cylinder is fixedly connected inside the mounting bracket, and a worm is fixedly connected to the output end of the cylinder.

[0016] The above technical solution enables precise lifting drive and self-locking basic structure forming effect, thereby using cylinder to provide stable driving force and using worm gear meshing characteristics to achieve high-precision adjustment, providing a reliable power source for intake volume control.

[0017] As a further improvement to the above solution, the worm and the worm wheel mesh with each other, a connecting frame is fixedly connected to the top of the worm, a push plate is fixedly connected to the top of the connecting frame, a fastening rod is fixedly connected inside the push plate, and a rotating plate is fastened to the outer surface of the fastening rod.

[0018] The above technical solution enables the transformation of lifting motion into dust barrier angle adjustment, thereby achieving linkage between cylinder drive and dust barrier action, making air intake adjustment automated and precise, while ensuring the adjustment process is stable and controllable.

[0019] As a further improvement to the above solution, a mounting base is fixedly connected to the front end of the monitoring instrument body, a limit rod is fixedly connected inside the mounting base, a rotating plate is rotatably connected to the outer surface of the limit rod, and the limit rod is located at the center position inside the rotating plate.

[0020] The above technical solution enables the rotating plate to rotate stably and achieve a limiting effect, thereby providing a fixed rotation center for the dust barrier adjustment, avoiding adjustment errors caused by plate offset, and improving the accuracy of air intake adjustment and structural stability.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes the coordinated operation of the monitoring and filtering components. The manifold is connected to the input end of the dust pump, and the filter screen is positioned at the front end of the monitoring slot for initial filtration. The locking seat is inserted into the locking slot and, under the action of the spring damper, pushes the fixed seat to reset, forming an interlock. The reset rod slides along the limiting slot to release the interlock, resulting in a stable installation and convenient disassembly of the filtering structure. This effectively intercepts large particles of dust and impurities in the external air, preventing pollutants from entering the monitoring instrument and affecting monitoring accuracy. At the same time, it ensures that the filter screen does not loosen or shift during monitoring, improving the structural stability and ease of maintenance of the device, and extending the service life of the monitoring instrument.

[0022] This invention utilizes the coordinated operation of adjustment, lifting, and limiting components. A cylinder drives a worm gear to rise and fall, meshing with a worm wheel for precise transmission. A connecting frame drives a push plate, and a latching rod pulls a rotating plate to rotate around a limiting rod. The rotating rod is then rotated via the connecting rod, adjustment plate, connecting plate, and mounting plate, allowing for adjustment of the dust-blocking plate angle. A dust pump delivers filtered air through an output pipe to the monitoring instrument for detection. Data is displayed in real-time on a screen. The worm gear structure self-locks after power failure, ensuring precise adjustment of the air intake and stable monitoring status. This allows for flexible adjustment of the air intake channel cross-sectional area based on VOCs concentration, meeting different needs for rapid monitoring of high concentrations and precise monitoring of low concentrations. Simultaneously, it prevents airflow fluctuations and external forces from causing dust-blocking plate angle shifts, ensuring stable and reliable monitoring data and improving the device's monitoring accuracy and applicability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a schematic diagram of the internal cross-section of the overall structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the internal structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C; Figure 7 For the present invention Figure 5 An enlarged schematic diagram of the structure at point D.

[0024] Explanation of key symbols: 1. Monitoring Instrument Components; 101. Monitoring Instrument Body; 102. Display Screen; 103. Support Rod; 104. Monitoring Socket; 105. Dust Pump; 106. Output Pipe; 2. Filter Assembly; 201. Manifold; 202. Filter Screen; 203. Locking Seat; 204. Locking Slot; 205. Movable Slot; 206. Spring Damper; 207. Fixed Seat; 208. Limit Slot; 209. Reset Rod; 3. Adjustment Assembly; 301. Rotating rod; 302. Dust barrier plate; 303. Connecting plate; 304. Mounting plate; 305. Adjusting plate; 306. Connecting rod; 307. Rotating plate; 4. Lifting assembly; 401. Mounting bracket; 402. Movable rod; 403. Worm gear; 404. Cylinder; 405. Worm; 406. Connecting bracket; 5. Limiting assembly; 501. Push plate; 502. Fastening rod; 503. Mounting base; 504. Limiting rod. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example:

[0026] Please combine Figure 1-7 This embodiment of an online VOCs monitoring device includes a monitoring device assembly 1, which includes a monitoring device body 101. A display screen 102 is fixedly connected to the outer surface of the monitoring device body 101, and a support rod 103 is fixedly connected to the bottom of the monitoring device body 101. A monitoring slot 104 is formed inside the monitoring device body 101, and a dust pump 105 is fixedly connected inside the monitoring slot 104. The device also includes: The filter assembly 2 includes a manifold 201 that is inserted into the input end of the vacuum pump 105. A locking seat 203 is fixedly connected to the top of the manifold 201. The locking seat 203 is fixedly connected to the inside of the monitoring tank 104 through a fixing seat 207. Adjustment component 3 includes a dustproof plate 302 rotatably connected inside the manifold 201, and a rotating plate 307 is fixedly connected to the outer surface of the dustproof plate 302 via a connecting plate 303. The lifting assembly 4 includes a mounting bracket 401 fixedly connected to the outer surface of the monitor body 101, and a connecting bracket 406 is movably mounted inside the mounting bracket 401 via a cylinder 404. The limiting component 5 includes a limiting rod 504 fixedly connected to the front end of the monitoring instrument body 101 via a mounting base 503, and a rotating plate 307 rotatably connected to the outer surface of the limiting rod 504.

[0027] The output end of the vacuum pump 105 is fixedly connected to the output pipe 106, which is fixedly connected to the input end of the monitoring instrument body 101. The input end of the vacuum pump 105 is connected to the manifold 201, and the front end of the manifold 201 is fixedly connected to the filter screen 202.

[0028] A locking seat 203 is fixedly connected to the top of the manifold 201. A locking groove 204 is provided on the top of the locking seat 203 inside the monitor body 101. A movable groove 205 is provided on the inner wall of the locking groove 204. A spring damper 206 is fixedly connected to the inner wall of the locking groove 204.

[0029] A fixed base 207 is fixedly connected to the bottom of the spring damper 206. The fixed base 207 is slidably installed inside the movable groove 205. A reset rod 209 is fixedly connected to the outer surface of the fixed base 207. The reset rod 209 is slidably installed inside the limiting groove 208. The limiting groove 208 is opened inside the monitoring instrument body 101.

[0030] The locking seat 203 abuts against the fixed seat 207, causing the fixed seat 207 to retract inward along the movable groove 205 under the elastic force of the spring damper 206. After the manifold 201 is installed in place, the spring damper 206 resets and pushes the fixed seat 207 to lock the locking seat 203, thus achieving interlocking between the two.

[0031] A rotating rod 301 is rotatably connected inside the manifold 201. A dustproof plate 302 is fixedly connected at the center of the outer surface of the rotating rod 301. Connecting plates 303 are fixedly connected to both sides of the outer surface of the rotating rod 301.

[0032] Multiple connecting plates 303 are connected by mounting plates 304. An adjusting plate 305 is fixedly connected to the side of the outer surface of the connecting plate 303 away from the mounting plate 304. A connecting rod 306 is fixedly connected to the inner wall of the adjusting plate 305. A rotating plate 307 is fixedly connected to the center of the outer surface of the connecting rod 306.

[0033] A movable rod 402 is rotatably connected to the inner wall of the mounting bracket 401. A worm gear 403 is fixedly connected to the outer surface of the movable rod 402. A cylinder 404 is fixedly connected inside the mounting bracket 401. A worm gear 405 is fixedly connected to the output end of the cylinder 404.

[0034] The worm 405 meshes with the worm wheel 403. A connecting frame 406 is fixedly connected to the top of the worm 405. A push plate 501 is fixedly connected to the top of the connecting frame 406. A fastening rod 502 is fixedly connected inside the push plate 501. A rotating plate 307 is fastened to the outer surface of the fastening rod 502.

[0035] The front end of the monitoring instrument body 101 is fixedly connected to a mounting base 503. A limiting rod 504 is fixedly connected inside the mounting base 503. A rotating plate 307 is rotatably connected to the outer surface of the limiting rod 504. The limiting rod 504 is located at the center inside the rotating plate 307.

[0036] Multiple connecting plates 303 are linked together through mounting plate 304, which drives the rotating rod 301 inside the manifold 201 to rotate, thereby realizing the angle adjustment of the dust blocking plate 302. When multiple dust blocking plates 302 are in a parallel state, the air intake channel of the manifold 201 is fully opened. As the dust pump 105 works, the external air is filtered by the filter screen 202 and enters the monitoring tank 104 quickly and smoothly, meeting the needs of rapid monitoring of high concentration VOCs. When the cylinder 404 drives the worm gear 405 to rise, the push plate 501 drives the rotating plate 307 to rotate in the opposite direction, so that the dust blocking plate 302 tilts at an angle, reducing the cross-sectional area of ​​the air intake channel and reducing the air intake volume, which is suitable for accurate monitoring of low concentration VOCs and improves the accuracy of monitoring data.

[0037] The implementation principle of the VOCs online monitoring instrument in this application embodiment is as follows: During assembly, the manifold 201 is inserted into the input end of the dust pump 105, so that the filter 202 fixed at the front end of the manifold 201 is at the front end of the monitoring slot 104, thus intercepting large particles of dust and impurities in the external air in advance, preventing pollutants from entering the monitoring instrument body 101 and affecting the monitoring accuracy. The locking seat 203 fixed at the top of the manifold 201 is simultaneously inserted into the locking slot 204 inside the monitoring instrument body 101. The locking seat 203 abuts against the fixing seat 207, causing the fixing seat 207 to spring back. Under the elastic force of the spring damper 206, it retracts inward along the movable groove 205. After the manifold 201 is installed in place, the spring damper 206 resets and pushes the fixed seat 207 to lock the locking seat 203, realizing the interlock between the two and ensuring that the filter screen 202 does not loosen or shift during the monitoring process. When it is necessary to clean or replace the filter screen 202, pull the reset rod 209 inside the limit groove 208 to slide upward, causing the fixed seat 207 to disengage from the locking seat 203. The manifold 201 can be removed by manually releasing the interlock state, which greatly reduces the maintenance difficulty and improves the practicality of the device. The rotating plate 307 of the adjusting component 3, away from the connecting rod 306, is fastened to the surface of the fastening rod 502. The mounting base 503 of the limiting component 5 is fixed to the front end of the monitor body 101. The limiting rod 504 fixed inside it passes through the center of the rotating plate 307, providing a stable rotation fulcrum for the rotating plate 307 and preventing it from shifting during rotation. The mounting bracket 401 of the lifting component 4 is fixed to the outer surface of the monitor body 101. The outer surface of the movable rod 402 rotatably connected to its inner wall is fixed with a worm gear 403. The starting cylinder 404 drives the worm 405 to descend. Because the worm 405 meshes with the worm gear 403, the lifting amplitude of the worm 405 can be precisely controlled through gear transmission to avoid over-adjustment. The worm 405 drives the push plate 501 to descend synchronously through the connecting bracket 406 fixed at the top. The fastening rod 502 inside the push plate 501 pulls the rotating plate 307. 7. Rotating around the limiting rod 504 as the center, the connecting rod 306 is adjusted upwards. The connecting rod 306 drives the connecting plate 303 to move through the adjusting plate 305. Multiple connecting plates 303 are linked through the mounting plate 304, which drives the rotating rod 301 inside the manifold 201 to rotate, thereby realizing the angle adjustment of the dust blocking plate 302. When multiple dust blocking plates 302 are in a parallel state, the air intake channel of the manifold 201 is fully opened. As the dust pump 105 works, the external air is filtered by the filter screen 202 and enters the monitoring tank 104 quickly and smoothly, meeting the needs of rapid monitoring of high concentration VOCs. When the cylinder 404 drives the worm gear 405 to rise, the pushing plate 501 drives the rotating plate 307 to rotate in the opposite direction, so that the angle of the dust blocking plate 302 is tilted, reducing the cross-sectional area of ​​the air intake channel and reducing the air intake volume, which is suitable for accurate monitoring of low concentration VOCs and improves the accuracy of monitoring data. After the vacuum pump 105 starts, it draws outside air into the monitoring tank 104 through the manifold 201 and filter 202. The filtered air is then delivered to the input end of the monitoring instrument 101 through the output pipe 106 at the output end of the vacuum pump 105. The monitoring instrument 101 detects and analyzes the VOCs concentration in the air, and the detection results are displayed on the display screen 102 in real time for easy viewing by staff. During the adjustment process of the worm gear 405 by the cylinder 404, the meshing structure between the worm wheel 403 and the worm gear 405 not only improves the adjustment accuracy. Furthermore, after the cylinder 404 is de-energized, the self-locking characteristic of the worm gear transmission can be used to lock the position of the worm 405, preventing the dust blocking plate 302 from shifting due to airflow impact or external force, ensuring stable air intake and guaranteeing the consistency of monitoring data. At the same time, the filter screen 202 and the dust blocking plate 302 form a double protection. The filter screen 202 intercepts particulate impurities, and the dust blocking plate 302 adjusts the air intake. Combined with the stable air extraction of the dust pump 105, the gas entering the monitoring instrument body 101 is kept in a stable state, avoiding airflow fluctuations from affecting the detection accuracy.

[0038] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A VOCs online monitoring device, comprising a monitoring device assembly (1), the monitoring device assembly (1) comprising a monitoring body (101), a display screen (102) fixedly connected to the outer surface of the monitoring body (101), a support rod (103) fixedly connected to the bottom of the monitoring body (101), a monitoring slot (104) provided inside the monitoring body (101), and a dust pump (105) fixedly connected inside the monitoring slot (104), characterized in that, Also includes: The filter assembly (2) includes a manifold (201) inserted into the input end of the vacuum pump (105), and a locking seat (203) is fixedly connected to the top of the manifold (201). The locking seat (203) is fixedly connected to the inside of the monitoring tank (104) through a fixing seat (207). Adjustment component (3), the adjustment component (3) includes a dustproof plate (302) rotatably connected inside the manifold (201), and a rotating plate (307) is fixedly connected to the outer surface of the dustproof plate (302) through a connecting plate (303); The lifting assembly (4) includes a mounting bracket (401) fixedly connected to the outer surface of the monitor body (101), and a connecting bracket (406) is movably mounted inside the mounting bracket (401) via a cylinder (404). The limiting component (5) includes a limiting rod (504) fixedly connected to the front end of the monitoring instrument body (101) via a mounting base (503), and a rotating plate (307) is rotatably connected to the outer surface of the limiting rod (504).

2. The VOCs online monitoring instrument as described in claim 1, characterized in that: The output end of the vacuum pump (105) is fixedly connected to the output pipe (106), the output pipe (106) is fixedly connected to the input end of the monitoring instrument body (101), the input end of the vacuum pump (105) is connected to the manifold (201), and the front end of the manifold (201) is fixedly connected to the filter screen (202).

3. The VOCs online monitoring instrument as described in claim 2, characterized in that: The top of the manifold (201) is fixedly connected to a locking seat (203), and the top of the locking seat (203) is provided with a locking groove (204) opened inside the monitor body (101). The inner wall of the locking groove (204) is provided with a movable groove (205), and the inner wall of the locking groove (204) is fixedly connected to a spring damper (206).

4. The VOCs online monitoring instrument as described in claim 3, characterized in that: The bottom of the spring damper (206) is fixedly connected to a fixed seat (207), which is slidably installed inside the movable groove (205). A reset rod (209) is fixedly connected to the outer surface of the fixed seat (207), which is slidably installed inside the limiting groove (208), which is opened inside the monitoring instrument body (101).

5. The VOCs online monitoring instrument as described in claim 1, characterized in that: The manifold (201) is rotatably connected to a rotating rod (301), a dustproof plate (302) is fixedly connected to the center of the outer surface of the rotating rod (301), and connecting plates (303) are fixedly connected to both sides of the outer surface of the rotating rod (301).

6. The VOCs online monitoring instrument as described in claim 5, characterized in that: The multiple connecting plates (303) are connected by mounting plates (304). An adjusting plate (305) is fixedly connected to the side of the outer surface of the connecting plate (303) away from the mounting plate (304). A connecting rod (306) is fixedly connected to the inner wall of the adjusting plate (305). A rotating plate (307) is fixedly connected to the center of the outer surface of the connecting rod (306).

7. The VOCs online monitoring instrument as described in claim 1, characterized in that: The inner wall of the mounting bracket (401) is rotatably connected to a movable rod (402), the outer surface of the movable rod (402) is fixedly connected to a worm gear (403), the inside of the mounting bracket (401) is fixedly connected to a cylinder (404), and the output end of the cylinder (404) is fixedly connected to a worm (405).

8. The VOCs online monitoring instrument as described in claim 7, characterized in that: The worm (405) meshes with the worm wheel (403). A connecting frame (406) is fixedly connected to the top of the worm (405). A push plate (501) is fixedly connected to the top of the connecting frame (406). A fastening rod (502) is fixedly connected inside the push plate (501). A rotating plate (307) is fastened to the outer surface of the fastening rod (502).

9. The VOCs online monitoring instrument as described in claim 1, characterized in that: The front end of the monitoring instrument body (101) is fixedly connected to a mounting base (503), and a limiting rod (504) is fixedly connected inside the mounting base (503). A rotating plate (307) is rotatably connected to the outer surface of the limiting rod (504), and the limiting rod (504) is located at the center inside the rotating plate (307).

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