Factory boundary non-methane total hydrocarbon and benzene series analyzer structure
By using a slider-threaded bolt linkage structure and a magnetic chuck design, the problem of easy damage to the testing pipeline is solved, enabling flexible adjustment of the delivery pipe and stable storage of the probe, extending its service life and improving the convenience of testing and environmental cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-06
AI Technical Summary
The detection tubing of existing non-methane total hydrocarbon and benzene series analyzers is exposed, making it susceptible to bending, breakage, and friction damage. It has a short service life and cannot be fixed and stored, resulting in inconvenience in detection.
The height of the delivery pipe is adjusted by a slider and threaded bolt linkage structure, the detection probe is fixed by a magnetic chuck, the pipeline is protected by a silicone rubber elastic conical cover, and the sliding bearing and anti-slip texture design reduce friction, so as to achieve flexible adjustment and stable storage of the pipeline.
It extends the service life of the testing pipeline, prevents probe detachment, improves the convenience and stability of testing, and ensures the cleanliness of the testing environment.
Smart Images

Figure CN223977214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of analysis and detection of non-methane total hydrocarbons and benzene series compounds, specifically a structure for a factory boundary non-methane total hydrocarbon and benzene series compound analyzer. Background Technology
[0002] Non-methane total hydrocarbons (NMHC) and benzene series compounds analysis are important components of environmental monitoring, used to assess the degree of air pollution and health risks.
[0003] In the prior art, such as in publication number CN206920398U, an online analyzer for non-methane total hydrocarbons and benzene series is disclosed, which includes a detector, a multi-way valve one, a multi-way valve two, a first chromatographic column, a second chromatographic column, a third chromatographic column, a fourth chromatographic column, a first quantitative loop, a second quantitative loop, a third quantitative loop, a first carrier gas source, a second carrier gas source, a third carrier gas source, a fourth carrier gas source, a three-way solenoid valve, a four-way connector, a sample inlet, and a sample outlet;
[0004] Although the aforementioned patent uses two multi-way valves and one detector, along with four chromatographic columns and four quantitative loops to form three carrier gas channels and two backflush channels, it can detect the content of non-methane total hydrocarbons and benzene series compounds in the sample gas. However, during the detection period, the detection pipeline is exposed to the outside, which is at risk of bending and damage, affecting the use of the next detection. In addition, during the detection period, the delivery pipe comes into contact with the ground and friction occurs, reducing its service life. Furthermore, the detection device cannot be fixed and stored, making the detection inconvenient. Therefore, in order to address the above problems, a new structure for a factory boundary non-methane total hydrocarbon and benzene series compound analyzer is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, during testing, the exposed testing pipeline is at risk of bending and breakage, affecting subsequent testing. Furthermore, the delivery pipe comes into contact with the ground during testing, causing friction and reducing its lifespan. The testing device cannot be securely stored, leading to inconvenience. This invention proposes a structure for a factory boundary non-methane total hydrocarbon and benzene series analyzer.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The structure of the non-methane total hydrocarbon and benzene series analyzer at the plant boundary of this utility model includes an analyzer body; a square groove is provided on the side of the analyzer body, a conveying pipe is provided inside the square groove, a square frame is fixedly connected to the surface of the square groove, a longitudinal sliding groove is opened on the surface of the square frame, a slider is slidably connected inside the longitudinal sliding groove, a limiting groove is opened on the side of the square frame, a threaded bolt is slidably connected inside the limiting groove, an elastic limiting piece is provided at one end of the threaded bolt, sliding bearings are provided on both sides of the top of the slider, the sliding bearings are slidably connected to the inner side wall of the longitudinal sliding groove, a circular hole groove is opened inside the slider, an elastic conical cover is provided inside the circular hole groove, the conveying pipe passes through the interior of the elastic conical cover; a detection probe is provided at one end of the conveying pipe, A magnetic absorbing pieces are provided on both sides of the detection probe, an embedding groove is opened on the side of the analyzer body, and a B magnetic absorbing piece is provided on the inner wall of the embedding groove.
[0007] Preferably, a display module is provided on the surface of the analyzer body, and a sensing module is provided inside the analyzer body, with the display module and the sensing module being electrically connected.
[0008] Preferably, the contact surfaces of the magnetic absorbing sheet A and the magnetic absorbing sheet B are planar structures and the magnetic absorbing surfaces are coated with an anti-oxidation coating. The magnetic absorbing sheet A is fixedly connected to the detection probe by a snap fastener.
[0009] Preferably, the elastic conical cover is made of silicone rubber and has an annular sealing protrusion on its inner wall, the annular sealing protrusion being interference-fitted with the outer wall of the conveying pipe.
[0010] Preferably, the sliding surface of the sliding bearing is coated with a graphite lubricating layer, and the inner wall surface of the longitudinal groove is polished.
[0011] Preferably, the end of the threaded bolt is provided with anti-slip texture, and the elastic limiting piece is made of spring steel and its surface is covered with a rubber buffer layer.
[0012] The advantages of this utility model are:
[0013] 1. This utility model achieves height adjustment and fixation of the conveying pipe through the linkage adjustment structure design of the slider and the threaded bolt. The rotating threaded bolt pushes the elastic limiting piece against the inner wall of the limiting groove, and the sliding bearing moves smoothly along the longitudinal sliding groove. This solves the problem of easy contact and wear of the conveying pipe with the ground in traditional detectors, and extends the service life of the pipeline. The optimized structure of the anti-slip texture at the end of the threaded bolt and the rubber buffer layer of the elastic limiting piece increases the twisting friction, and the rubber buffer layer disperses the local stress during locking, solving the problem of component deformation caused by slippage or excessive compression of the threaded bolt, and enhancing the reliability of adjustment.
[0014] 2. The planar magnetic attraction structure design of magnetic A and magnetic B of this utility model allows the detection probe to be fixed in the embedding groove by magnetic attraction when stored. The planar contact enhances the adsorption stability, and the anti-oxidation coating prevents corrosion failure of the magnetic surface, thus solving the problem of probe detachment or damage caused by exposure. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the analyzer body structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the square frame and slider structure of this utility model;
[0019] Figure 4 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0020] In the diagram: 1. Analyzer body; 2. Square groove; 3. Delivery pipe; 4. Square frame; 5. Longitudinal slide groove; 6. Slider; 7. Limiting groove; 8. Threaded bolt; 9. Elastic limiting piece; 10. Sliding bearing; 11. Elastic conical cover; 12. Detection probe; 13. A magnetic absorbing piece; 14. Embedding groove; 15. B magnetic absorbing piece; 16. Display module; 17. Sensing module. Detailed Implementation
[0021] 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 scope of protection of the present utility model.
[0022] Please see Figures 1-4As shown, a structure for a plant boundary non-methane total hydrocarbon and benzene series analyzer includes an analyzer body 1; a square groove 2 is provided on the side of the analyzer body 1, a conveying pipe 3 is provided inside the square groove 2, a square frame 4 is fixedly connected to the surface of the square groove 2, a longitudinal sliding groove 5 is opened on the surface of the square frame 4, a slider 6 is slidably connected inside the longitudinal sliding groove 5, a limiting groove 7 is opened on the side of the square frame 4, a threaded bolt 8 is slidably connected inside the limiting groove 7, an elastic limiting piece 9 is provided at one end of the threaded bolt 8, sliding bearings 10 are provided on both sides of the top of the slider 6, the sliding bearings 10 are slidably connected to the inner wall of the longitudinal sliding groove 5, a circular hole groove is opened inside the slider 6, an elastic conical cover 11 is provided inside the circular hole groove, the conveying pipe 3 passes through the interior of the elastic conical cover 11; a detection probe 12 is provided at one end of the conveying pipe 3, A magnetic absorbing pieces 13 are provided on both sides of the detection probe 12, an embedding groove 14 is opened on the side of the analyzer body 1, and a B magnetic absorbing piece 15 is provided on the inner wall of the embedding groove 14.
[0023] During operation, rotating the threaded bolt 8 pushes the elastic limiting piece 9 to press against the inner wall of the limiting groove 7. The slider 6 moves up and down along the longitudinal slide groove 5 via the sliding bearing 10 to adjust the height of the delivery pipe 3. The detection probe 12 is attracted and fixed in the embedding groove 14 by the magnetic suction piece A 13 and the magnetic suction piece B 15. The elastic conical cover 11 rises and falls with the slider 6 to adaptively extend and retract, protecting the delivery pipe 3 from bending. This achieves flexible adjustment of the height of the delivery pipe 3 and probe storage and protection, solving the risks of pipeline wear and probe exposure.
[0024] Furthermore, a display module 16 is provided on the surface of the analyzer body 1, and a sensing module 17 is provided inside the analyzer body 1. The display module 16 and the sensing module 17 are electrically connected.
[0025] During operation, the sensing module 17 collects the detection signal from the detection probe 12 in real time, processes it, and transmits it to the display module 16 to display the concentration data of non-methane total hydrocarbons and benzene series compounds. The modules are electrically connected through internal circuit boards, and the data visualization provides intuitive feedback on the detection results, improving monitoring efficiency and ease of operation.
[0026] Furthermore, the contact surfaces of magnetic absorbing sheet A 13 and magnetic absorbing sheet B 15 are planar structures and the magnetic absorbing surfaces are coated with an anti-oxidation coating. Magnetic absorbing sheet A 13 is fixedly connected to the detection probe 12 by a snap fastener.
[0027] During operation, magnetic 13 A and magnetic 15 B are in planar contact to enhance magnetic attraction. The anti-oxidation coating is applied to the magnetic surface using an electroplating process. The snap-fit structure rivets magnetic 13 A to both sides of the detection probe 12. Planar magnetic attraction prevents adsorption displacement, the anti-oxidation coating extends the magnetic life, and the snap-fit fixation prevents the probe from falling off.
[0028] Furthermore, the elastic conical cover 11 is made of silicone rubber and has an annular sealing protrusion on its inner wall, which is interference-fitted with the outer wall of the conveying pipe 3.
[0029] During operation, the inner wall of the elastic conical cover 11 made of silicone rubber is molded with an annular sealing protrusion. During installation, it tightly wraps around the outer wall of the delivery pipe 3 through an interference fit, forming a radial sealing barrier. The elastic seal adapts to the expansion and contraction of the pipeline, blocking external dust pollution and ensuring the cleanliness of the testing environment.
[0030] Furthermore, the sliding surface of the sliding bearing 10 is coated with a graphite lubricating layer, and the inner wall surface of the longitudinal groove 5 is polished.
[0031] During operation, the surface of the sliding bearing 10 is coated with a graphite lubricating layer to reduce the coefficient of friction. The inner wall of the longitudinal groove 5 is mechanically polished to form a mirror surface, reducing the moving resistance of the slider 6. The synergistic effect of lubrication and polishing makes the height adjustment smooth and without jamming, and extends the service life of the groove and bearing.
[0032] Furthermore, the end of the threaded bolt 8 is provided with anti-slip texture, and the elastic limiting piece 9 is made of spring steel and its surface is covered with a rubber buffer layer.
[0033] During operation, the rolled cross anti-slip texture at the end of the threaded bolt 8 increases the twisting friction. The spring steel base surface of the elastic limit piece 9 is vulcanized and coated with a rubber buffer layer to disperse the locking stress. The anti-slip texture improves the operating grip, and the rubber buffer layer reduces the rigid impact between the threaded bolt 8 and the limit groove 7.
[0034] Working principle: Rotating the threaded bolt 8 pushes the elastic limiting piece 9 to press against the inner wall of the limiting groove 7, driving the slider 6 to rise and fall along the longitudinal slide groove 5 to adjust the height of the conveying pipe 3. The elastic conical cover 11 moves with the slider 6 to adaptively extend and retract, protecting the conveying pipe 3 from bending. The detection probe 12 is attracted and fixed in the embedded groove 14 by magnetic suction piece A 13 and magnetic suction piece B 15. The sensing module 17 collects data and provides real-time feedback through the display module 16. The graphite lubricating layer of the sliding bearing 10 and the polished surface of the longitudinal slide groove 5 reduce frictional resistance. The sealing protrusion of the elastic conical cover 11 blocks contaminants. The anti-slip texture of the threaded bolt 8 and the rubber buffer layer ensure stable adjustment.
[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A structure of a plant boundary non-methane hydrocarbon and benzene series analyzer characterized by: The utility model provides an analysis appearance, including analysis appearance body (1), one side of analysis appearance body (1) is provided with square groove (2), the inside of square groove (2) is provided with conveying pipe (3), square frame (4) is fixedly connected on the surface of square groove (2), longitudinal sliding slot (5) is seted up on the surface of square frame (4), the inside sliding connection of longitudinal sliding slot (5) is connected with sliding block (6), the side of square frame (4) is provided with limit groove (7), the inside sliding connection of limit groove (7) is connected with threaded bolt (8), threaded bolt (8) one end is provided with elastic limit piece (9), the both sides of sliding block (6) top are provided with sliding bearing (10), sliding bearing (10) is connected in the inside wall of longitudinal sliding slot (5) slidingly, the inside of sliding block (6) is provided with round hole groove, the inside of round hole groove is provided with elastic conical cover (11), conveying pipe (3) penetrates the inside of elastic conical cover (11); One end of conveying pipe (3) is provided with detection probe (12), both sides of detection probe (12) are provided with A magnetic attraction piece (13), the side of analysis appearance body (1) is provided with embedded groove (14), the inner wall of embedded groove (14) is provided with B magnetic attraction piece (15).
2. The analyzer according to claim 1, wherein: The surface of analysis appearance body (1) is provided with display module (16), the inside of analysis appearance body (1) is provided with sensing module (17), and the display module (16) is electrically connected with the sensing module (17).
3. The analyzer of claim 1, wherein: The contact surface of A magnetic attraction piece (13) and B magnetic attraction piece (15) is a plane structure, and the magnetic attraction surface is coated with an oxidation-resistant coating, and the A magnetic attraction piece (13) and the detection probe (12) are fixedly connected through buckles.
4. The analyzer of claim 1, wherein: The material of the elastic conical cover (11) is silicone rubber, and an annular sealing protrusion is formed on the inner wall of the elastic conical cover (11), and the annular sealing protrusion is in interference fit with the outer wall of the conveying pipe (3).
5. The structure of a plant boundary non-methane total hydrocarbon and benzene series analyzer according to claim 1, characterized in that: The sliding surface of the sliding bearing (10) is coated with a graphite lubricating layer, and the inner wall surface of the longitudinal sliding slot (5) is polished.
6. The structure of a plant boundary non-methane total hydrocarbon and benzene series analyzer according to claim 1, characterized in that: The end of the threaded bolt (8) is provided with an anti-slip pattern, and the material of the elastic limit piece (9) is spring steel, and the surface is coated with a rubber buffer layer.
Citation Information
Patent Citations
Non -methane total hydrocarbon benzene series thing on line analyzer
CN206920398U