VOC (volatile organic compound) monitoring device easy to replace quickly
The design of the loading and unloading mechanism and dust cover solves the problem of inaccurate monitoring data caused by unstable installation of the water settling filter, enabling quick replacement and stable connection, and improving the ease of operation and data accuracy of the VOC monitoring device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JUYANG PRO-ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
In existing VOC monitoring devices, the installation of water-based filters is cumbersome and unstable, affecting the uniformity and stability of gas flow and resulting in inaccurate monitoring data.
The installation and removal mechanism, including a fixed cylinder, insert block, slot, telescopic rod and spring design, enables quick installation and removal of the water settling filter, ensures connection stability, and protects the display screen with a dust cover.
It enables quick replacement of the water settling filter, improves maintenance efficiency and the accuracy of monitoring data, while protecting the display screen and enhancing the ease of operation and data reliability of the device.
Smart Images

Figure CN224152445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of VOC monitoring devices, specifically a VOC monitoring device that is easy to replace quickly. Background Technology
[0002] VOC monitoring devices are widely used in industrial safety testing, indoor air quality testing, detection of hazardous substances, and environmental protection testing. A water-based filter is installed at the air inlet of the device to prevent moisture, oil mist, or dust in the air from entering the instrument and affecting the test values.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN221124479U) discloses an easily replaceable VOC monitoring device, comprising a device body, a button, a display screen, an air inlet pipe, and a water-settling filter body. The device body is equipped with a button and a display screen. An air inlet pipe is located at the top of the device body, and a water-settling filter body is mounted on the air inlet pipe. The top of the water-settling filter body has two mounting holes, and a retaining ball body is installed inside each mounting hole. A return spring is fixedly installed on the side of the two retaining ball bodies that are close to each other.
[0004] The aforementioned patent utilizes a design incorporating mounting holes, a retaining ball, and a return spring. This design addresses the common problems of cumbersome installation and low practicality of traditional VOC monitoring devices with water-based filters. Specifically, the water-based filter body features a retaining ball and a return spring. When the filter body is inserted into the air inlet pipe, the retaining ball is secured through the mounting holes, simplifying installation and improving worker efficiency. However, the use of the return spring and retaining ball may cause some wobbling. This wobbling could affect the stability of the connection between the filter and the air inlet pipe, interfering with the uniformity and stability of gas flow. This could lead to unstable gas composition and flow rate entering the monitoring device, potentially resulting in inaccurate data from the VOC monitoring device and failing to accurately reflect the actual VOC concentration in the environment.
[0005] Therefore, this invention provides a VOC monitoring device that is easy to replace quickly, in order to solve the above-mentioned problems. Utility Model Content
[0006] This invention provides a VOC monitoring device that is easy to replace quickly, aiming to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a VOC monitoring device that is easy to replace quickly, comprising a device body, an air inlet pipe fixedly installed on the device body, a water settling filter body disposed above the air inlet pipe, and a loading and unloading mechanism disposed inside the water settling filter body for easy replacement.
[0008] The loading and unloading mechanism includes a fixed cylinder fixedly installed inside the water settling filter body, a mounting block fixedly installed on the inner wall of the water settling filter body, a telescopic rod fixedly installed on the mounting block, an insert fixedly installed on the movable end of the telescopic rod, a first spring sleeved on the telescopic rod, and a slot opened inside the air inlet pipe for the insert to be inserted.
[0009] As a preferred technical solution of this application, the air intake pipe is slidably installed inside the fixed cylinder, the insert block passes through the fixed cylinder, one end of the first spring is fixedly connected to one side of the insert block, and the other end of the first spring is fixedly connected to one side of the mounting block.
[0010] As a preferred technical solution of this application, a second spring is provided inside the water settling filter body, and a pad is slidably connected inside the water settling filter body, with the fixing cylinder passing through the pad.
[0011] As a preferred technical solution of this application, the second spring is sleeved on the side surface of the fixed cylinder, one end of the second spring is fixedly connected to the bottom inner wall of the water settling filter body, and the other end of the second spring is fixedly connected to the bottom of the pad.
[0012] As a preferred technical solution of this application, a control block is slidably connected inside the water-sinking filter body, and a sliding groove is opened inside the water-sinking filter body for the control block to slide. Multiple inclined blocks are fixedly connected to the bottom of the control block, and the inclined surface of the inclined block is in contact with the inclined surface of the insertion block.
[0013] As a preferred technical solution of this application, a display screen is fixedly connected to one side of the main body of the device, a dust cover is provided on one side of the display screen, a slider is fixedly connected to the bottom of the dust cover, and a slide rail is provided inside the main body of the device for the slider to slide.
[0014] This utility model has a simple structure and is easy to use. Through the installation and removal mechanism, the water settling filter body in the VOC monitoring device can be quickly replaced, thereby improving maintenance efficiency and operational convenience. At the same time, the plug is inserted into the slot, thereby realizing the rapid installation of the water settling filter body and achieving stable installation and fixation of the water settling filter body, effectively preventing shaking during use, and thus enhancing the accuracy of monitoring data. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a VOC monitoring device that is easy to replace quickly;
[0016] Figure 2 This is a cross-sectional schematic diagram of the main body of a VOC monitoring device that is easy to replace quickly;
[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a schematic diagram of the installation of a plug in a VOC monitoring device that is easy to replace quickly;
[0019] Figure 5 This is a schematic diagram of the installation of the inclined block in a VOC monitoring device that is easy to replace quickly;
[0020] Figure 6 This is a schematic diagram of the installation of the display screen in a VOC monitoring device that is easy to replace quickly.
[0021] In the picture:
[0022] 1. Main body of the device; 2. Air inlet pipe; 3. Water settling filter body; 4. Fixing cylinder; 5. Mounting block; 6. Telescopic rod; 7. First spring; 8. Insert block; 9. Slot; 10. Second spring; 11. Pad; 12. Control block; 13. Inclined block; 14. Slide groove; 15. Display screen; 16. Dust cover; 17. Slider; 18. Slide rail. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] This invention provides a VOC monitoring device that is easy to and quickly replace, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the easily replaceable VOC monitoring device includes a device body 1, an air inlet pipe 2 fixedly installed on the device body 1, a water settling filter body 3 located above the air inlet pipe 2, and a loading and unloading mechanism located inside the water settling filter body 3 for easy replacement.
[0025] The loading and unloading mechanism includes a fixed cylinder 4 fixedly installed inside the water settling filter body 3, a mounting block 5 fixedly installed on the inner wall of the water settling filter body 3, a telescopic rod 6 fixedly installed on the mounting block 5, an insert block 8 fixedly installed on the movable end of the telescopic rod 6, a first spring 7 sleeved on the telescopic rod 6, and a slot 9 opened inside the air inlet pipe 2 for the insert block 8 to be inserted.
[0026] The intake pipe 2 is slidably installed inside the fixed cylinder 4, the insert block 8 passes through the fixed cylinder 4, one end of the first spring 7 is fixedly connected to one side of the insert block 8, and the other end of the first spring 7 is fixedly connected to one side of the mounting block 5.
[0027] When using this easy-to-replace VOC monitoring device, to install the water-sink filter body 3, simply align the air inlet pipe 2 with the fixing cylinder 4 and insert it directly. The air inlet pipe 2 will contact the inclined surface of the insert block 8, thereby squeezing the insert block 8 to both sides. The insert block 8 drives the telescopic rod 6 to move, and at the same time, the insert block 8 squeezes the first spring 7, causing the first spring 7 to deform. When the slot 9 and the insert block 8 are on the same horizontal line, under the elastic force of the first spring 7, the insert block 8 is pushed to move, so that the insert block 8 is inserted into the inside of the slot 9, thereby realizing the quick installation of the water-sink filter body 3.
[0028] Furthermore, to facilitate the removal and replacement of the water settling filter body 3 from the main body 1, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a second spring 10 is provided inside the water settling filter body 3, and a pad 11 is slidably connected inside the water settling filter body 3, with the fixing cylinder 4 passing through the pad 11.
[0029] The second spring 10 is sleeved on the side surface of the fixed cylinder 4. One end of the second spring 10 is fixedly connected to the bottom inner wall of the water settling filter body 3, and the other end of the second spring 10 is fixedly connected to the bottom of the pad 11.
[0030] The water settling filter body 3 has a control block 12 slidably connected inside. The water settling filter body 3 has a sliding groove 14 for the control block 12 to slide. The bottom of the control block 12 is fixedly connected to multiple inclined blocks 13, and the inclined surface of the inclined block 13 is in contact with the inclined surface of the insert block 8.
[0031] When using this easy-to-replace VOC monitoring device, if it is necessary to remove the water-sink filter body 3, press down on the control block 12. The control block 12 drives the inclined block 13 to move. The inclined surface of the inclined block 13 and the inclined surface of the insertion block 8 press against each other, causing the insertion block 8 to move to both sides. The insertion block 8 drives the telescopic rod 6 to move. At the same time, the insertion block 8 presses against the first spring 7. Under the elastic force of the first spring 7, the insertion block 8 moves out of the slot 9. At this time, the water-sink filter body 3 can be removed from the device body 1, which facilitates the replacement of the water-sink filter body 3 and improves the ease of use of the VOC monitoring device. At the same time, the bottom of the inclined block 13 is in contact with the top of the pad 11. When the inclined block 13 moves downward, it pushes the pad 11 downward and presses the second spring 10. After removing the water-sink filter body 3 from the device body 1, the elastic potential energy of the second spring 10 pushes the control block 12 and the inclined block 13 upward until they return to the initial position for easy use next time.
[0032] Furthermore, in order to protect the main body 1 of the device, such as... Figure 1 , Figure 2 and Figure 6 As shown, a display screen 15 is fixedly connected to one side of the main body 1 of the device, a dust cover 16 is provided on one side of the display screen 15, a slider 17 is fixedly connected to the bottom of the dust cover 16, and a slide rail 18 for the slider 17 to slide is provided inside the main body 1 of the device.
[0033] When in use, the dust cover 16 of this easily replaceable VOC monitoring device is slidably connected to the main body 1 of the device via the cooperation of the slider 17 and the slide rail 18. This allows the dust cover 16 to be easily opened or closed, effectively preventing dust from falling onto the display screen 15, ensuring the clarity of the display screen 15, and improving the effectiveness of the VOC monitoring device. The display screen 15 is used to display the monitoring data and working status of the VOC monitoring device, allowing users to intuitively understand the real-time situation of the VOC monitoring device. When the display screen 15 needs to be used, simply slide the dust cover 16 to one side along the slide rail 18 to open it. The operation is simple and convenient. When the display screen 15 is not needed, slide the dust cover 16 to the opposite direction along the slide rail 18 to close it, which can effectively protect the display screen 15.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A VOC monitoring device that is easily and quickly replaceable, characterized by: The easily replaceable VOC monitoring device includes a device body (1), an air inlet pipe (2) fixedly installed on the device body (1), a water settling filter body (3) set above the air inlet pipe (2), and a loading and unloading mechanism set inside the water settling filter body (3) for easy replacement. The loading and unloading mechanism includes a fixed cylinder (4) fixedly installed inside the water settling filter body (3), an installation block (5) fixedly installed on the inner wall of the water settling filter body (3), a telescopic rod (6) fixedly installed on the installation block (5), an insert block (8) fixedly installed on the movable end of the telescopic rod (6), a first spring (7) sleeved on the telescopic rod (6), and a slot (9) opened inside the air inlet pipe (2) for the insert block (8) to be inserted.
2. The VOC monitoring device of claim 1, wherein: The air intake pipe (2) is slidably installed inside the fixed cylinder (4), the insert (8) passes through the fixed cylinder (4), one end of the first spring (7) is fixedly connected to one side of the insert (8), and the other end of the first spring (7) is fixedly connected to one side of the mounting block (5).
3. The VOC monitoring device of claim 1, wherein: The water settling filter body (3) is provided with a second spring (10) inside, and a pad (11) is slidably connected inside the water settling filter body (3). The fixed cylinder (4) passes through the pad (11).
4. The VOC monitoring device of claim 3, wherein: The second spring (10) is sleeved on the side surface of the fixed cylinder (4), one end of the second spring (10) is fixedly connected to the bottom inner wall of the water settling filter body (3), and the other end of the second spring (10) is fixedly connected to the bottom of the pad (11).
5. A VOC monitoring device that is easily and quickly replaceable according to claim 4, characterized in that: The water settling filter body (3) has a control block (12) slidably connected inside. The water settling filter body (3) has a sliding groove (14) for the control block (12) to slide inside. The bottom of the control block (12) is fixedly connected to a plurality of inclined blocks (13), and the inclined surface of the inclined block (13) is in contact with the inclined surface of the insert block (8).
6. The VOC monitoring device of claim 1, wherein: A display screen (15) is fixedly connected to one side of the main body (1) of the device. A dust cover (16) is provided on one side of the display screen (15). A slider (17) is fixedly connected to the bottom of the dust cover (16). A slide rail (18) is provided inside the main body (1) of the device for the slider (17) to slide.
Citation Information
Patent Citations
VOC (volatile organic compound) monitoring device easy to replace quickly
CN221124479U