Enamel kettle liquid anti-blocking on-line sampling device

Abstract

The utility model relates to sampling device technical field, concretely is a kind of on-line sampling device for preventing the blockage of enamel kettle liquid, including sampling box, hoisting structure, rotating structure, clamping structure, water scraping structure, limiting structure, first valve, second valve, first pipeline, third valve, second pipeline, fourth valve, third pipeline, first sealing cover, connecting shaft, protective door, observation window, second threaded sleeve and second sealing cover;Water scraping frame in water scraping structure is scraped to the water droplet on observation window at the same time door is opened, to avoid forgetting to scrape water droplet and lead to inconvenient observation of the sample state inside sampling box when sampling, automatically install sampling bottle by the rotation of connecting seat in rotating structure, improve the flexibility when installing, after sampling, rotating structure and clamping structure are used in cooperation to facilitate the sealing of sampling bottle quickly, avoid that sample contacts oxygen in large quantities, the accuracy of detection data is influenced, after sampling is completed, sampling device can be cleaned again.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically to an online sampling device for preventing clogging of liquid in an enamel-lined autoclave. Background Technology

[0002] The most basic function of a sampling valve is to collect samples. By opening and closing the sampling valve, the required samples can be taken out from the pipe or container for subsequent analysis, testing, monitoring and other purposes. The sampling valve can be installed on the pipe or container and set according to the type and location of the sample to be collected, so as to ensure that the collected samples are representative and accurate.

[0003] However, during sampling, the sampling valve requires the sampling bottle to be installed by engaging a threaded sleeve inside the sampling box. This installation method, where the operator screws the sampling bottle onto the threaded sleeve, offers limited flexibility. Furthermore, when there is a significant temperature difference between indoors and outdoors, water droplets may condense on the observation window. During sampling, these droplets can affect the transparency and clarity of the observation window, interfering with the observation of the sample. After sampling, the operator must remove the sampling bottle from the sampling box and then thread the sealing cap onto the bottle. If the sample in the bottle comes into contact with excessive oxygen during this process, it may lead to a decline in quality, affecting the accuracy of the test data. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an online sampling device for preventing clogging of enamel-lined reactor liquid.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an online sampling device for preventing blockage of enamel kettle liquid, including a sampling box, a first valve installed on the sampling box, a second valve installed on the first valve, a first pipe installed on the second valve, a third valve installed on the first pipe, a second pipe installed on the first valve, a fourth valve installed on the second pipe, and a third pipe installed on the fourth valve. The following components are included: a lifting structure installed inside the sampling box; a rotating structure installed between the lifting structure and the sampling box; a clamping structure installed inside the sampling box; a connecting shaft rotatably connected to the sampling box; a protective door fixedly connected to the connecting shaft; an observation window installed on the protective door; and a squeegee structure provided on the protective door. The wiper structure includes four mounting blocks fixedly connected to the protective door and guide rails fixedly connected between every two mounting blocks. A wiper frame is slidably connected to the guide rails. The wiper frame is slidably connected to the protective door. A drive shaft is rotatably connected to a groove in the wiper frame. An installation shaft is rotatably connected to the protective door. A connecting rod is fixedly connected to the installation shaft. The drive shaft is rotatably connected to the connecting rod. A rotating rod is fixedly connected to the installation shaft. A torsion spring is fixedly connected between the installation shaft and the protective door.

[0006] Specifically, the protective door is fixed to the sampling box by a limiting structure. The limiting structure includes a sliding sleeve fixedly connected to the protective door and a limiting rod slidably connected to the sliding sleeve. The sampling box is provided with a limiting groove that cooperates with the limiting rod. The limiting rod has a trapezoidal structure. A fixing rod is fixedly connected to the bottom of the limiting rod. A tension spring is fixedly connected between the fixing rod and the sliding sleeve.

[0007] Specifically, a fixed shaft is fixedly connected to the fixed rod, a roller is rotatably connected to the fixed shaft, and a drive ring is fixedly connected to the mounting shaft, with the roller and drive ring in rolling engagement.

[0008] Specifically, the lifting structure includes two mounting rods fixedly connected inside the sampling box and a mounting frame fixedly connected between the two mounting rods. A hydraulic rod is installed inside the mounting frame, and a mounting plate is installed at the telescopic end of the hydraulic rod.

[0009] Specifically, a guide shaft is fixedly connected to the bottom of the mounting plate, and a fixing block is fixedly connected to the mounting frame. The guide shaft and the fixing block are slidably connected.

[0010] Specifically, the rotating structure includes a rotating shaft rotatably connected to the mounting plate and a connecting seat fixedly connected to the rotating shaft. The connecting seat is slidably connected to the mounting plate. A sampling bottle is installed on the connecting seat. A first threaded sleeve is fixedly connected inside the sampling box. The sampling bottle is threadedly connected to the first threaded sleeve.

[0011] Specifically, a rubber block is fixedly connected to the sampling bottle, the rubber block engages with the connecting seat, and the bottom of the connecting seat has a through hole.

[0012] Specifically, a first motor is installed at the bottom of the mounting plate, the rotating shaft is fixedly connected to the output shaft of the first motor, and a protective cover is fixedly connected to the bottom of the mounting plate.

[0013] Specifically, the clamping structure includes a first lead screw rotatably connected to the sampling box and an adjusting frame threadedly connected to the first lead screw. A guide post is fixedly connected inside the sampling box. The adjusting frame is slidably connected to the guide post. A second lead screw is rotatably connected inside the adjusting frame. Two adjusting plates are slidably connected inside the adjusting frame. A clamping block is fixedly connected to the adjusting plate. The adjusting plate is threadedly connected to the second lead screw. The threads at both ends of the second lead screw are in opposite directions.

[0014] Specifically, a rubber pad is fixedly connected to the clamping block, and a first sealing cover is clamped between the two rubber pads. A second motor is installed on the adjusting frame, and the second lead screw is fixedly connected to the output shaft of the second motor. A third motor is installed on the sampling box, and the first lead screw is fixedly connected to the output shaft of the third motor. A second threaded sleeve is fixedly connected to the bottom of the sampling box, and a second sealing cover is rotatably connected to the second threaded sleeve.

[0015] The beneficial effects of this utility model are: (1) The online sampling device for preventing blockage of enamel kettle liquid described in this utility model has a scraper structure on the protective door. The protective door is fixed to the sampling box through a limiting structure. The limiting rod in the limiting structure engages with the sampling box, which facilitates the fixing of the protective door. When the door is opened, the scraper frame in the scraper structure scrapes away the water droplets on the observation window, avoiding forgetting to scrape away the water droplets and making it inconvenient to observe the state of the sample inside the sampling box during sampling.

[0016] (2) The online sampling device for preventing blockage of enamel kettle liquid described in this utility model has a lifting structure installed in the sampling box. The lifting structure facilitates the adjustment of the height of the sampling bottle.

[0017] (3) The online sampling device for preventing clogging of enamel kettle liquid described in this utility model has a rotating structure installed between the lifting structure and the sampling box, and a clamping structure installed inside the sampling box. The sampling bottle is automatically installed by rotating the connecting seat in the rotating structure, which improves the flexibility of installation. After sampling, the rotating structure and the clamping structure work together to quickly seal the sampling bottle, avoiding the sample from coming into contact with a large amount of oxygen, which would affect the accuracy of the detection data. After sampling, the sampler can be cleaned again. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an online sampling device for preventing clogging of enamel-lined autoclave liquid provided by this utility model; Figure 2 This is a schematic diagram of the connection structure between the mounting rod and the sampling box of this utility model; Figure 3 This is a schematic diagram of the connection structure between the mounting frame and the mounting rod of this utility model; Figure 4 This is a schematic diagram of the connection structure between the first threaded sleeve and the sampling box of this utility model; Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of part A. Figure 6 This is a schematic diagram of the connection structure between the mounting block and the protective door of this utility model; Figure 7 for Figure 6 The diagram shown is an enlarged view of the structure of section B. Figure 8 This is a schematic diagram of the connection structure between the adjustment frame and the first lead screw of this utility model.

[0020] In the diagram: 1. Sampling box; 2. Lifting structure; 201. Mounting rod; 202. Mounting frame; 203. Hydraulic rod; 204. Mounting plate; 205. Fixing block; 206. Guide shaft; 3. Rotating structure; 301. Rotating shaft; 302. Connecting seat; 303. Sampling bottle; 304. Rubber block; 305. Through hole; 306. First motor; 307. First threaded sleeve; 308. Protective cover; 4. Clamping structure; 401. First lead screw; 402. Adjusting frame; 403. Guide column; 404. Adjusting plate; 405. Clamping block; 406. Rubber pad; 407. Second lead screw; 408. Second motor; 409. Third motor; 5. Squeegee structure; 50 1. Mounting block; 502. Guide rail; 503. Wiper frame; 504. Drive shaft; 505. Connecting rod; 506. Mounting shaft; 507. Rotating rod; 508. Torsion spring; 6. Limiting structure; 601. Sliding sleeve; 602. Limiting rod; 603. Limiting groove; 604. Fixing rod; 605. Fixing shaft; 606. Roller; 607. Drive ring; 608. Tension spring; 7. First valve; 8. Second valve; 9. First pipe; 10. Third valve; 11. Second pipe; 12. Fourth valve; 13. Third pipe; 14. First sealing cover; 15. Connecting shaft; 16. Protective door; 17. Observation window; 18. Second threaded sleeve; 19. Second sealing cover. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the online sampling device for preventing clogging of enamel kettle liquid according to this utility model includes a sampling box 1, a first valve 7 installed on the sampling box 1, a second valve 8 installed on the first valve 7, a first pipe 9 installed on the second valve 8, a third valve 10 installed on the first pipe 9, a second pipe 11 installed on the first valve 7, a fourth valve 12 installed on the second pipe 11, and a third pipe 13 installed on the fourth valve 12; a lifting structure 2 installed inside the sampling box 1, a rotating structure 3 installed between the lifting structure 2 and the sampling box 1, a clamping structure 4 installed inside the sampling box 1, a connecting shaft 15 rotatably connected to the sampling box 1, a protective door 16 fixedly connected to the connecting shaft 15, and a clamping structure 4 installed inside the sampling box 1. The protective door 16 includes an observation window 17 and a wiper structure 5. The wiper structure 5 includes four mounting blocks 501 fixedly connected to the protective door 16 and guide rails 502 fixedly connected between each pair of mounting blocks 501. A wiper frame 503 is slidably connected to the guide rails 502. The wiper frame 503 is slidably connected to the protective door 16. A drive shaft 504 is rotatably connected to the groove in the wiper frame 503. An installation shaft 506 is rotatably connected to the protective door 16. A connecting rod 505 is fixedly connected to the installation shaft 506. The drive shaft 504 is rotatably connected to the connecting rod 505. A rotating rod 507 is fixedly connected to the installation shaft 506. A torsion spring 508 is fixedly connected between the installation shaft 506 and the protective door 16.

[0023] Specifically, such as Figure 1 , Figure 6 and Figure 7The protective door 16 is fixed to the sampling box 1 by a limiting structure 6. The limiting structure 6 includes a sliding sleeve 601 fixedly connected to the protective door 16 and a limiting rod 602 slidably connected to the sliding sleeve 601. The sampling box 1 is provided with a limiting groove 603 that cooperates with the limiting rod 602. The limiting rod 602 has a trapezoidal structure, and a fixing rod 604 is fixedly connected to the bottom of the limiting rod 602. The fixing rod 604 and the sliding sleeve 601 are... A tension spring 608 is fixedly connected to the fixed rod 604. A fixed shaft 605 is fixedly connected to the fixed rod 604. A roller 606 is rotatably connected to the fixed shaft 605. A drive ring 607 is fixedly connected to the mounting shaft 506. The roller 606 and the drive ring 607 roll in cooperation. When the protective door 16 is opened, the rotating rod 507 drives the mounting shaft 506 to rotate 90 degrees. When the mounting shaft 506 rotates, the torsion spring 508 deforms, and at the same time, the mounting shaft 506 drives the drive ring. When drive ring 607 rotates, the protrusion on drive ring 607 abuts against roller 606, causing roller 606 to drive fixed rod 604 downward. As fixed rod 604 moves downward, tension spring 608 extends, and simultaneously fixed rod 604 causes limit rod 602 to no longer engage with limit groove 603 on sampling box 1. Limit rod 602 engaging with sampling box 1 facilitates the fixing of protective door 16. At the same time, mounting shaft 506 drives connecting rod 505 to rotate 90 degrees, connecting... The lever 505 causes the drive shaft 504 to roll in the groove on the wiper frame 503, thereby allowing the wiper frame 503 to slide with the two guide rails 502. The guide rails 502 make the wiper frame 503 slide more smoothly. At the same time, the wiper frame 503 will wipe away the water droplets on the observation window 17. By opening the door, the wiper frame 503 wipes away the water droplets on the observation window 17, avoiding forgetting to wipe away the water droplets, which would make it inconvenient to observe the state of the sample inside the sampling box 1 during sampling.

[0024] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the lifting structure 2 includes two mounting rods 201 fixedly connected to the sampling box 1 and a mounting frame 202 fixedly connected between the two mounting rods 201. A hydraulic rod 203 is installed inside the mounting frame 202. A mounting plate 204 is installed at the telescopic end of the hydraulic rod 203. A guide shaft 206 is fixedly connected to the bottom of the mounting plate 204. A fixing block 205 is fixedly connected to the mounting frame 202. The guide shaft 206 and the fixing block 205 are slidably connected. Before sampling, the first valve 7 and the fourth valve 12 can be opened, followed by the third valve 10. Water then enters the second valve 8 from the first pipe 9 through the external water channel connected to the third valve 10. The water cleans the sampler and finally flows out from the sampling point. The water flows out from the bottom of box 1 and the third pipe 13. When cleaning, the second sealing cap 19 is not threaded into the second threaded sleeve 18 to drain the water. After cleaning, the fourth valve 12 and the third valve 10 are closed in sequence. Then, the sampling bottle 303 is placed on the connecting seat 302, and the rubber block 304 is engaged with the connecting seat 302. At this time, the protective door 16 can be closed. After closing, the hydraulic rod 203 is activated. When the telescopic end of the hydraulic rod 203 extends, it will drive the mounting plate 204 to move upward. The mounting plate 204 will drive the guide shaft 206 and the fixed block 205 to slide. The sliding of the guide shaft 206 and the fixed block 205 makes the movement of the mounting plate 204 more stable. The mounting plate 204 and the hydraulic rod 203 cooperate to facilitate the adjustment of the height of the sampling bottle 303.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8As shown, the rotating structure 3 includes a rotating shaft 301 rotatably connected to the mounting plate 204 and a connecting seat 302 fixedly connected to the rotating shaft 301. The connecting seat 302 is slidably connected to the mounting plate 204. A sampling bottle 303 is mounted on the connecting seat 302. A first threaded sleeve 307 is fixedly connected inside the sampling box 1. The sampling bottle 303 is threadedly connected to the first threaded sleeve 307. A rubber block 304 is fixedly connected to the sampling bottle 303. The rubber block 304 engages with the connecting seat 302. A through hole 305 is provided at the bottom of the connecting seat 302. A first motor 306 is mounted at the bottom of the mounting plate 204. The rotating shaft 301 is fixedly connected to the output shaft of the first motor 306. A protective cover 308 is fixedly connected to the sampling box 1. The clamping structure 4 includes a first lead screw 401 rotatably connected to the sampling box 1 and an adjusting frame 402 threadedly connected to the first lead screw 401. A guide post 403 is fixedly connected to the sampling box 1. The adjusting frame 402 is slidably connected to the guide post 403. A second lead screw 407 is rotatably connected to the adjusting frame 402. Two adjusting plates 404 are slidably connected to the adjusting frame 402. A clamping block 405 is fixedly connected to the adjusting plate 404. The adjusting plate 404 is threadedly connected to the second lead screw 407. The threads at both ends of the second lead screw 407 are opposite in direction. A rubber pad 406 is fixedly connected to the clamping block 405. A first tight clamping structure is formed between the two rubber pads 406. The cap 14, the adjusting frame 402 is equipped with a second motor 408, the second lead screw 407 is fixedly connected to the output shaft of the second motor 408, the sampling box 1 is equipped with a third motor 409, the first lead screw 401 is fixedly connected to the output shaft of the third motor 409, the bottom of the sampling box 1 is fixedly connected with a second threaded sleeve 18, the second threaded sleeve 18 is rotatably connected to a second sealing cap 19, and the third motor 409 is started at the same time. When the output shaft of the third motor 409 rotates, it drives the first lead screw 401 to rotate. The first lead screw 401 will drive the adjusting frame 402 and the guide post 403 to slide. The adjusting frame 402 will adjust the position of the two clamping blocks 405. When it moves to above the bottle cap, the bottle cap and the two clamping blocks 405 are aligned. 5. Alignment: By starting the second motor 408, the output shaft of the second motor 408 rotates, driving the second lead screw 407 to rotate. The second lead screw 407 threadedly drives the two adjusting plates 404 to slide towards each other. The adjusting plates 404 drive the clamping block 405 to move, causing the clamping block 405 to clamp the rubber pad 406 to hold the first sealing cover 14. At this time, by starting the first motor 306, the output shaft of the first motor 306 rotates, driving the rotating shaft 301 to rotate. The rotating shaft 301 drives the connecting seat 302 to rotate. The rotation of the connecting seat 302 causes the sampling bottle 303 to rotate through the rubber block 304. The sampling bottle 303 will rotate relative to the first sealing cover 14, causing the sampling bottle 303 to disengage from the first sealing cover 14. During rotation, the mounting plate 204 can continuously descend.After the sampling bottle 303 is detached from the first sealing cap 14, the position of the adjusting frame 402 is adjusted by rotating the first lead screw 401, causing the adjusting frame 402 to move the first sealing cap 14 to the side. Then, the mounting plate 204 rises, and the first motor 306 drives the connecting seat 302 to rotate, so that the sampling bottle 303 is threadedly engaged with the first threaded sleeve 307. At this time, the sampling bottle 303 is installed on the first threaded sleeve 307. The automatic installation of the sampling bottle 303 is achieved by rotating the connecting seat 302, which improves the flexibility of installation. At this point, by opening the second valve 8, which is connected to the sampling device, the sample flows into the sampling bottle 303 to complete the sampling. After sampling, the position of the first sealing cap 14 is adjusted by the adjusting frame 402, and the connecting seat 302 rotates to facilitate sealing between the sampling bottle 303 and the first sealing cap 14. This allows for quick sealing of the sampling bottle 303 after sampling, preventing the sample from coming into contact with large amounts of oxygen, which could affect the accuracy of the test data. After sampling, the sampler can be cleaned again.

[0026] In use, when the protective door 16 is opened, the rotating rod 507 drives the mounting shaft 506 to rotate 90 degrees. When the mounting shaft 506 rotates, the torsion spring 508 deforms. Simultaneously, the mounting shaft 506 drives the drive ring 607 to rotate. When the protrusion on the drive ring 607 abuts against the roller 606, the roller 606 causes the fixing rod 604 to move downwards. When the fixing rod 604 moves downwards, the tension spring 608 extends. At the same time, the fixing rod 604 causes the limiting rod 602 to no longer engage with the limiting groove 603 on the sampling box 1. The engagement of the limiting rod 602 with the sampling box 1 facilitates... The protective door 16 serves a fixing function, while the mounting shaft 506 drives the connecting rod 505 to rotate 90 degrees. The connecting rod 505 causes the drive shaft 504 to roll in the groove on the wiper frame 503, thereby allowing the wiper frame 503 to slide with the two guide rails 502. The guide rails 502 make the wiper frame 503 slide more smoothly. At the same time, the wiper frame 503 will remove the water droplets on the observation window 17. By opening the door, the wiper frame 503 removes the water droplets on the observation window 17, avoiding forgetting to remove the water droplets and making it inconvenient to observe the state of the sample inside the sampling box 1 during sampling. Before sampling, open the first valve 7 and the fourth valve 12, then open the third valve 10. Water will then enter the second valve 8 from the first pipe 9 via the external water channel connected to the third valve 10. The water will clean the sampler and eventually flow out from the bottom of the sampling box 1 and the third pipe 13. During cleaning, ensure the second sealing cap 19 is not threaded onto the second threaded sleeve 18 to drain the water. After cleaning, close the fourth valve 12 and the third valve 10 in sequence, then place the sampling bottle 303 inside. Place it on the connecting seat 302, and at the same time, the rubber block 304 engages with the connecting seat 302. At this time, the protective door 16 can be closed. After closing, start the hydraulic rod 203. When the telescopic end of the hydraulic rod 203 extends, it will drive the mounting plate 204 to move upward. The mounting plate 204 will drive the guide shaft 206 and the fixed block 205 to slide. Through the sliding of the guide shaft 206 and the fixed block 205, the movement of the mounting plate 204 is more stable. The cooperation between the mounting plate 204 and the hydraulic rod 203 makes it easy to adjust the height of the sampling bottle 303. Simultaneously, the third motor 409 is activated. When the output shaft of the third motor 409 rotates, it drives the first lead screw 401 to rotate. The first lead screw 401 then drives the adjusting frame 402 to slide against the guide post 403. The adjusting frame 402 adjusts the position of the two clamping blocks 405. When it moves above the bottle cap, it aligns the bottle cap with the two clamping blocks 405. Then, the second motor 408 is activated. When the output shaft of the second motor 408 rotates, it drives the second lead screw 407 to rotate. The second lead screw 407 then drives the two adjusting plates 404 to slide towards each other. The section plate 404 drives the clamping block 405 to move, causing the clamping block 405 to drive the rubber pad 406 to clamp the first sealing cover 14. At this time, by starting the first motor 306, the output shaft of the first motor 306 rotates, driving the rotating shaft 301 to rotate. The rotating shaft 301 drives the connecting seat 302 to rotate. The rotation of the connecting seat 302 will drive the sampling bottle 303 to rotate through the rubber block 304. The sampling bottle 303 will rotate relative to the first sealing cover 14, causing the sampling bottle 303 to detach from the first sealing cover 14. During rotation, the mounting plate 204 can be continuously... The sampling bottle 303 descends, and after it disengages from the first sealing cap 14, the position of the adjusting frame 402 is adjusted by rotating the first lead screw 401. This causes the adjusting frame 402 to move the first sealing cap 14 to the side. Then, the mounting plate 204 rises, and the first motor 306 drives the connecting seat 302 to rotate, causing the sampling bottle 303 to engage with the first threaded sleeve 307. At this point, the sampling bottle 303 is installed on the first threaded sleeve 307. The automatic installation of the sampling bottle 303 is achieved by rotating the connecting seat 302, improving the flexibility of the installation process. The activity is then activated by opening the second valve 8. Since the second valve 8 is connected to the sampling device, the sample will flow into the sampling bottle 303 to complete the sampling. After sampling, the position of the first sealing cap 14 is adjusted by adjusting the adjustment frame 402, and the connecting seat 302 rotates to facilitate the sealing of the sampling bottle 303 and the first sealing cap 14. After sampling, it is easy to quickly seal the sampling bottle 303 to avoid the sample coming into contact with a large amount of oxygen, which would affect the accuracy of the detection data. After sampling, the sampler can be cleaned again.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An online sampling device for preventing clogging of enamel-lined autoclave liquid, characterized in that, Includes a sampling box (1), a first valve (7) installed on the sampling box (1), a second valve (8) installed on the first valve (7), a first pipe (9) installed on the second valve (8), a third valve (10) installed on the first pipe (9), a second pipe (11) installed on the first valve (7), a fourth valve (12) installed on the second pipe (11), and a third pipe (13) installed on the fourth valve (12); The following structures are installed in the sampling box (1): a lifting structure (2), a rotating structure (3) between the lifting structure (2) and the sampling box (1), a clamping structure (4) in the sampling box (1), a connecting shaft (15) rotatably connected to the sampling box (1), a protective door (16) fixedly connected to the connecting shaft (15), an observation window (17) installed on the protective door (16), and a squeegee structure (5) provided on the protective door (16). The wiper structure (5) includes four mounting blocks (501) fixedly connected to the protective door (16) and guide rails (502) fixedly connected between each pair of mounting blocks (501). A wiper frame (503) is slidably connected to the guide rail (502). The wiper frame (503) is slidably connected to the protective door (16). A drive shaft (504) is rotatably connected to the groove in the wiper frame (503). An installation shaft (506) is rotatably connected to the protective door (16). A connecting rod (505) is fixedly connected to the installation shaft (506). The drive shaft (504) is rotatably connected to the connecting rod (505). A rotating rod (507) is fixedly connected to the installation shaft (506). A torsion spring (508) is fixedly connected between the installation shaft (506) and the protective door (16).

2. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 1, characterized in that: The protective door (16) is fixed to the sampling box (1) by a limiting structure (6). The limiting structure (6) includes a sliding sleeve (601) fixedly connected to the protective door (16) and a limiting rod (602) slidably connected to the sliding sleeve (601). The sampling box (1) is provided with a limiting groove (603) that cooperates with the limiting rod (602). The limiting rod (602) has a trapezoidal structure. A fixing rod (604) is fixedly connected to the bottom of the limiting rod (602). A tension spring (608) is fixedly connected between the fixing rod (604) and the sliding sleeve (601).

3. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 2, characterized in that: A fixed shaft (605) is fixedly connected to the fixed rod (604), a roller (606) is rotatably connected to the fixed shaft (605), and a drive ring (607) is fixedly connected to the mounting shaft (506). The roller (606) and the drive ring (607) are in rolling cooperation.

4. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 1, characterized in that: The lifting structure (2) includes two mounting rods (201) fixedly connected to the sampling box (1) and a mounting frame (202) fixedly connected between the two mounting rods (201). A hydraulic rod (203) is installed in the mounting frame (202), and a mounting plate (204) is installed at the telescopic end of the hydraulic rod (203).

5. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 4, characterized in that: The bottom of the mounting plate (204) is fixedly connected to a guide shaft (206), and a fixing block (205) is fixedly connected to the mounting frame (202). The guide shaft (206) and the fixing block (205) are slidably connected.

6. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 4, characterized in that: The rotating structure (3) includes a rotating shaft (301) rotatably connected to the mounting plate (204) and a connecting seat (302) fixedly connected to the rotating shaft (301). The connecting seat (302) is slidably connected to the mounting plate (204). A sampling bottle (303) is installed on the connecting seat (302). A first threaded sleeve (307) is fixedly connected inside the sampling box (1). The sampling bottle (303) is threadedly connected to the first threaded sleeve (307).

7. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 6, characterized in that: A rubber block (304) is fixedly connected to the sampling bottle (303). The rubber block (304) engages with the connecting seat (302). The bottom of the connecting seat (302) is provided with a through hole (305).

8. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 7, characterized in that: The mounting plate (204) is equipped with a first motor (306) at the bottom, the rotating shaft (301) is fixedly connected to the output shaft of the first motor (306), and a protective cover (308) is fixedly connected to the bottom of the mounting plate (204).

9. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 1, characterized in that: The clamping structure (4) includes a first lead screw (401) rotatably connected to the sampling box (1) and an adjusting frame (402) threadedly connected to the first lead screw (401). A guide post (403) is fixedly connected inside the sampling box (1). The adjusting frame (402) is slidably connected to the guide post (403). A second lead screw (407) is rotatably connected inside the adjusting frame (402). Two adjusting plates (404) are slidably connected inside the adjusting frame (402). A clamping block (405) is fixedly connected to the adjusting plate (404). The adjusting plate (404) is threadedly connected to the second lead screw (407). The threads at both ends of the second lead screw (407) are in opposite directions.

10. The online sampling device for preventing clogging of enamel-lined autoclave liquid according to claim 9, characterized in that: A rubber pad (406) is fixedly connected to the clamping block (405), and a first sealing cover (14) is clamped between the two rubber pads (406). A second motor (408) is installed on the adjusting frame (402), and the second lead screw (407) is fixedly connected to the output shaft of the second motor (408). A third motor (409) is installed on the sampling box (1), and the first lead screw (401) is fixedly connected to the output shaft of the third motor (409). A second threaded sleeve (18) is fixedly connected to the bottom of the sampling box (1), and a second sealing cover (19) is rotatably connected to the second threaded sleeve (18).

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