A multi-cavity sampler for chemical production detection

Abstract

The present invention discloses a multi-cavity sampler for chemical production detection, which specifically relates to the field of sampling technology, including a slot column, a screw, a driving motor and a multi-cavity synchronous closed positioning sampling mechanism; wherein the multi-cavity synchronous closed positioning sampling mechanism includes a sleeve block, a ring groove plate, a linkage hole ring, a plurality of sampling cavity tubes and a guide column; and also includes a synchronous liquid inlet sealing sampling mechanism and a displacement sampling sensor component. The present invention has the advantages of enabling a plurality of limited groove barrels to be closed and enter a sampling position of a specified depth through a multi-cavity synchronous closed positioning sampling mechanism, and can realize multi-cavity synchronous static closed sampling of chemical production detection liquid, greatly improving the sampling accuracy, thereby solving the problem that it is difficult to know whether a specific sampling liquid is a sampling specimen at that position, and it is difficult to realize multi-cavity synchronous static closed sampling of chemical production detection liquid, resulting in poor sampling accuracy.

Description

Technical Field

[0001] The present invention relates to the field of sampling technology, and more specifically, to a multi-cavity sampler for chemical production detection. Background Art

[0002] The multi-cavity sampler used in chemical production testing has independent test sample liquids, and the carrying mechanism of the multi-cavity sampler can form multiple independent test sample liquids, thereby avoiding interference between different sample liquids and ensuring the purity and representativeness of each sample liquid. Secondly, comparative testing can be performed. Through the multi-cavity sampler, sewage from different locations can be extracted to form multiple comparative sample liquids, and then the accuracy of the final test results can be improved through comparative testing.

[0003] In the existing published technical literature, the Chinese patent announcement number CN113567199A discloses a multi-cavity sampler for detecting industrial wastewater discharged from petrochemical enterprises. This technology mainly forms multiple independent detection sample liquids through a carrying mechanism, thereby avoiding the interference between different detections, which is conducive to improving the accuracy of the detection results. The sampling mechanism in this invention can complete the simultaneous extraction and storage of multiple independent detection sample liquids, thereby improving the efficiency of sewage extraction work, and can also realize the operation of extracting sewage at different depths, thereby improving the accuracy of the final detection result by forming multiple comparative detections. However, this sampling extraction technology has the following problems.

[0004] During the chemical production inspection process, although a multi-cavity sampler is required to sample the chemical production inspection liquid for inspection and data index checking, during the sampling process, the chemical production inspection liquid is continuously sampled by drawing it, which will cause the chemical production inspection liquid to flow at a high speed. At the same time, the chemical production inspection liquid at other positions will flow irregularly to the sampling position here, resulting in a large flow change at the sampling position. It is difficult to know whether the specific sampling liquid is the sampling specimen at this position. Therefore, it is difficult to realize multi-cavity synchronous static closed sampling of the chemical production inspection liquid, resulting in poor sampling accuracy. For this reason, a multi-cavity sampler for chemical production inspection is needed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a multi-cavity sampler for chemical production detection, comprising a groove column, the inner wall of the groove column is rotatably connected to a screw, the top of the groove column is fixedly installed with a driving motor, the driving motor is used to drive the screw to rotate, and the outer wall of the screw is provided with a multi-cavity synchronous closed positioning sampling mechanism; the multi-cavity synchronous closed positioning sampling mechanism comprises a sleeve block threadedly arranged on the outer wall of the screw, the sleeve block is slidably connected to the groove column, one side of the sleeve block is fixedly connected to a ring groove plate, and the ring groove plate One end of the linkage hole ring is fixedly connected to the inner wall of the linkage hole ring; a plurality of sampling cavity tubes are fixedly connected to the inner wall of the linkage hole ring, and a guide column is provided on one side of each of the sampling cavity tubes, and the outer wall of the guide column is slidably connected to the limiting groove cylinder, and the limiting groove cylinder and the sampling cavity tube are fixedly connected; a limiting cavity is provided inside the limiting groove cylinder, and a sealing rubber ring is slidably connected to the outer wall of the limiting groove cylinder, and a linkage ring is bonded to the outer wall of the sealing rubber ring; a synchronous liquid inlet sealing sampling mechanism is provided on the upper surface of the ring groove plate; a displacement sampling sensor component is provided at the bottom end of the limiting groove cylinder.

[0006] Preferably, the output end of the driving motor is fixedly connected to the screw, and the outer wall of the sleeve block and the inner wall of the slot column are both smooth surfaces; multiple sampling cavity tubes are arranged in a circular ring with equal spacing. Multiple guide columns are arranged in a circular ring with equal spacing, and a gap is provided between the bottom end of the sampling cavity tube and the bottom end of the inner wall of the limiting slot barrel. The outer wall of the driving motor is fixedly connected to a holding column, and a controller is fixedly installed on the top of the holding column, and a battery fixedly connected to the holding column is provided on one side of the controller. The top of each sampling cavity tube is fixedly connected to a sampling pump, and the output end of the sampling pump is fixedly connected to an extraction tube, and the outer wall of the extraction tube is threadedly connected to a sampling bottle; a sleeve frame fixedly connected to the slot column is provided below the driving motor, and multiple guide columns are fixedly connected to the sleeve frame, and a chassis is fixedly installed at the bottom of the slot column, and multiple guide columns are fixedly connected to the chassis. A distance sensor is provided on one side of one of the guide columns and close to the chassis, and the distance sensor is fixedly connected to the chassis.

[0007] When this technology is in use, the drive motor drives the screw to rotate, the sleeve block will drive the annular groove plate to move downward, and the linkage hole ring will cause multiple sampling chamber tubes to move downward synchronously. The limit groove barrel slides down along the outer wall of the guide column, and the annular groove plate drives the linkage electric cylinder to move downward. The linkage electric cylinder can move downward with the annular groove plate, and the connecting ring can also move downward. The connecting ring drives multiple L-shaped strips to move downward, and the outer retaining barrel drives the connecting block to move downward in linkage. The connecting block drives the hole frame to move the linkage ring downward. The limit groove barrel and the sealing rubber ring can be inserted into the chemical production detection liquid container synchronously, and the distance sensor can sense the distance to the bottom of the limit groove barrel. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the drive motor is turned off by the controller, and multiple limit groove barrels can move to the specified depth position at the same time.

[0008] Preferably, the synchronous liquid inlet sealing sampling mechanism comprises a linkage electric cylinder fixedly arranged on the upper surface of the ring groove plate; the output end of the linkage electric cylinder is fixedly connected with a connection ring, the outer wall of the output end of the linkage electric cylinder is slidably connected with the ring groove plate, the lower surface of the connection ring is fixedly connected with a plurality of L-shaped strips, the bottom end of the L-shaped strip is fixedly connected with an outer retaining tube, the upper and lower surfaces of each outer retaining tube are fixedly connected with an outward expansion retaining tube, and one side of the inner wall of the outer retaining tube is fixedly connected with a connection block; one side of the connection block is fixedly connected with a hole frame, the inner wall of the hole frame is bonded with a guide frame, the hole frame is fixedly connected with the linkage ring, the outer wall of the outer retaining tube and the position adjacent to the L-shaped strip are fixedly connected with a sleeve block, the inner wall of the sleeve block is slidably connected with a support rod, and the two outward expansion retaining tubes are fixedly connected with the support rod; the upper surface of the guide frame is fixedly installed with a sensing block. The plurality of L-shaped strips are arranged in a circular ring with equal spacing, and the vertical cross-section of the L-shaped strip is L-shaped.

[0009] When this technology is in use, the controller starts the linkage electric cylinder, which pushes the connecting ring downward, and the L-shaped bar drives the outer retaining cylinder downward, which enables the sleeve block to move downward. The outer retaining cylinder drives the connecting block downward, which enables the hole frame to move downward, and the hole frame drives the linkage ring downward, and the sealing rubber ring slides down from the outer wall of the limiting groove cylinder. The limiting cavity in the limiting groove cylinder is opened, so that the chemical production detection liquid can fill the limiting cavity at this depth position, and at the same time, the chemical production detection liquid in the external range can be blocked by the two external expansion retaining cylinders and the outer retaining cylinder, and the limiting cavity can accurately sample the chemical production detection liquid at this depth position.

[0010] Preferably, the displacement sampling sensor assembly includes a bracket fixedly arranged at the bottom end of the limit groove cylinder; a groove body is opened on one side of the inner wall of the bracket, a lower pressure sensor is installed on the top of the inner wall of the groove body, and the lower pressure sensor is fixedly connected to the bracket; a sleeve bracket is fixedly connected to one side of the bracket, and an upper pressure sensor is fixedly installed on the top of the inner wall of the sleeve bracket. The center point of the output end of the upper pressure sensor is on the same vertical line as the center point of the output end of the lower pressure sensor, and the sleeve bracket is used to support the upper pressure sensor.

[0011] When this technology is in use, the sensing block will approach the position of the lower pressure sensor, and the bracket supports the lower pressure sensor inside the slot body. The sensing block begins to move downward and squeezes and contacts the sensing end of the lower pressure sensor. In this way, the controller can continue to start the linkage electric cylinder to drive the connecting ring to move upward, and the multiple L-shaped strips respectively drive the multiple peripheral retaining cylinders to move upward synchronously. The connecting block causes the hole frame to move upward, and the hole frame drives the guide frame to move upward. The linkage ring drives the sealing rubber ring to move upward, so that the sealing rubber ring can encapsulate the outer wall of the limit slot barrel, and the inside of the limit slot barrel can be filled with chemical production detection liquid, and external sealing and isolation can be achieved. The chemical production detection liquid at this depth can be sealed inside the limit cavity for storage and sampling. When the sensing block contacts the sensing end of the upper pressure sensor, the linkage electric cylinder is immediately closed through the controller.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention uses a multi-cavity synchronous closed positioning sampling mechanism. A driving motor drives the screw to rotate, and the screw rotates inside the groove column. The sleeve block drives the annular groove plate to move downward, and the annular groove plate drives the linkage hole ring to move downward. The sampling cavity tube drives the limit groove barrel to move downward, and the limit groove barrel enters the chemical production detection liquid container. The annular groove plate drives the linkage electric cylinder to move downward, and the connecting ring drives multiple L-shaped strips to move downward. The L-shaped strip drives the outer retaining barrel to move downward, and the limit groove barrel and the sealing rubber ring can be synchronously inserted into the chemical production detection liquid container. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the driving motor is turned off by the controller, and the multiple limit groove barrels can be closed and enter the sampling position of the specified depth to ensure that the sampling liquid is the sampling specimen at this position. The multi-cavity synchronous static closed sampling of the chemical production detection liquid can be realized, and the sampling accuracy is greatly improved.

[0014] 2. The present invention utilizes a synchronous liquid inlet sealing sampling mechanism, and the linkage electric cylinder pushes the connecting ring downward, and the connecting ring drives multiple L-shaped strips to move downward synchronously, and the outer retaining cylinder drives two outer expansion retaining cylinders to move downward synchronously, and the outer retaining cylinder can make the sleeve block move downward, and the outer retaining cylinder drives the connecting block to move downward, and the connecting block makes the hole frame move downward, and the linkage ring drives the sealing ring to move downward, and the sealing ring slides down from the outer wall of the limiting groove cylinder to open the limiting cavity in the limiting groove cylinder, and the chemical production detection liquid can fill the limiting cavity at this depth position, and the chemical production detection liquid in the external range can be blocked by the two outer expansion retaining cylinders and the outer retaining cylinder to avoid the impact flow of the external chemical production detection liquid, so that multiple limiting cavities can sample the chemical production detection liquid at this depth position, and avoid large flow changes at the sampling position, and can realize multi-cavity synchronous static closed sampling of the chemical production detection liquid, thereby greatly improving the sampling accuracy.

[0015] 3. The present invention uses a displacement sampling sensor component. The hole frame drives the sensing block to move downward. The sensing block will approach the position of the lower pressure sensor. The bracket supports the lower pressure sensor inside the slot body. In this way, the sensing block is no longer in contact with the upper pressure sensor. The sensing block starts to move downward and squeezes and contacts the sensing end of the lower pressure sensor. The linkage electric cylinder is started to drive the connecting ring to move upward until the sealing rubber ring can seal the outer wall of the limit slot barrel. The interior of the limit slot barrel can be filled with chemical production detection liquid, and external sealing and isolation can be achieved. After the upper pressure sensor senses the pressure value, the linkage electric cylinder is immediately closed through the controller, so that the limit cavity can quickly sample the chemical production detection liquid at this depth position, and then the position of the limit cavity continues to be closed for sampling. In this way, multi-cavity synchronous static closed sampling of the chemical production detection liquid can be accurately achieved, greatly improving the sampling accuracy.

[0016] According to the mutual influence of the above-mentioned multiple effects, firstly, multiple limit groove cylinders can close the sampling position entering the specified depth, and secondly, the chemical production detection liquid can fill the limit cavity at this depth position, and the chemical production detection liquid in the external range can be blocked by two external expansion blocking cylinders and the outer blocking cylinder, and multiple limit cavities are closed again, and finally the sensing block starts to move down and squeezes and contacts with the sensing end of the lower pressure sensor, and the linkage electric cylinder is started to drive the connecting ring to move up. After the upper pressure sensor senses the pressure value, the linkage electric cylinder is immediately closed through the controller. In summary, multiple limit cavities can accurately sample the chemical production detection liquid at this depth position, avoid large flow changes at the sampling position, and avoid impact flow interference caused by external chemical production detection liquid, and can realize multi-cavity synchronous static closed sampling of chemical production detection liquid, greatly improving the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the multi-cavity sampler for chemical production detection of the present invention.

[0018] Figure 2 It is a schematic diagram of the partial structure of the connection between the guide column and the sleeve frame of the present invention.

[0019] Figure 3 It is a schematic diagram of the local structure of the vertical section of the peripheral retaining cylinder of the present invention.

[0020] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the outer retaining cylinder and the outward expansion retaining cylinder of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the multi-cavity sampler for chemical production detection according to the present invention when viewed from above.

[0022] Figure 6 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0023] Figure 7 It is a schematic diagram of the partial structure of the connection between the slot column and the chassis of the present invention.

[0024] Figure 8 It is a schematic diagram of the local structure of the vertical section of the connection between the connecting ring and the L-shaped strip of the present invention.

[0025] Fig. 9 It is a schematic diagram of the local structure of the vertical section of the connection between the limiting groove cylinder and the bracket of the present invention.

[0026] Fig.10 It is a schematic diagram of the front view structure of the displacement sampling sensor component of the present invention.

[0027] The accompanying drawings are marked as follows: 1. slot column; 2. screw; 3. drive motor; 4. sleeve block; 5. ring slot plate; 6. linkage hole ring; 7. sampling cavity tube; 8. guide column; 9. limit slot cylinder; 10. limit cavity; 11. sealing rubber ring; 12. linkage ring; 13. holding column; 14. controller; 15. battery; 16. sampling pump; 17. extraction tube; 18. sampling bottle; 19. sleeve frame; 20. chassis; 21. distance sensor; 22. linkage electric cylinder; 23. connecting ring; 24. L-shaped bar; 25. outer stop cylinder; 26. outward stop cylinder; 27. connecting block; 28. hole frame; 29. ​​guide frame; 30. sleeve block; 31. support rod; 32. induction block; 33. bracket; 34. slot body; 35. lower pressure sensor; 36. sleeve bracket; 37. upper pressure sensor. DETAILED DESCRIPTION

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

[0029] As attached Figure 1-10 A multi-channel sampler for chemical production detection is shown. The multi-channel sampler for chemical production detection is provided with a multi-channel synchronous closed positioning sampling mechanism, a synchronous liquid inlet sealing sampling mechanism, and a displacement sampling sensor component. The arrangement of each mechanism and component enables multiple limit cavities 10 to accurately sample the chemical production detection liquid at this depth position, avoiding large flow changes at the sampling position and impact flow interference caused by external chemical production detection liquid. It can realize multi-channel synchronous static closed sampling of chemical production detection liquid, greatly improving the sampling accuracy. The specific structural arrangement of each mechanism and component is as follows.

[0030] In this technical solution, as shown in the attached Figure 1-6 As shown, the outer wall of the screw 2 is provided with a multi-cavity synchronous closed positioning sampling mechanism; the multi-cavity synchronous closed positioning sampling mechanism includes a sleeve block 4 threadedly arranged on the outer wall of the screw 2, the sleeve block 4 is slidably connected to the groove column 1, one side of the sleeve block 4 is fixedly connected to a ring groove plate 5, and one end of the ring groove plate 5 is fixedly connected to a linkage hole ring 6; the inner wall of the linkage hole ring 6 is fixedly connected to a plurality of sampling cavity tubes 7, one side of each sampling cavity tube 7 is provided with a guide column 8, the outer wall of the guide column 8 is slidably connected to a limiting groove cylinder 9, and the limiting groove cylinder 9 is fixedly connected to the sampling cavity tube 7; a limiting cavity 10 is provided inside the limiting groove cylinder 9, the outer wall of the limiting groove cylinder 9 is slidably connected to a sealing rubber ring 11, and the outer wall of the sealing rubber ring 11 is bonded with a linkage ring 12; the upper surface of the ring groove plate 5 is provided with a synchronous liquid inlet sealing sampling mechanism; the bottom end of the limiting groove cylinder 9 is provided with a displacement sampling sensor component. The output end of the driving motor 3 is fixedly connected to the screw 2, and the outer wall of the sleeve block 4 and the inner wall of the slot column 1 are both smooth surfaces; a plurality of sampling cavity channel tubes 7 are arranged in a circular ring with equal spacing. A plurality of guide columns 8 are arranged in a circular ring with equal spacing, and a gap is provided between the bottom end of the sampling cavity channel tube 7 and the bottom end of the inner wall of the limiting slot cylinder 9.

[0031] In this technical solution, as shown in the attached Figure 1-6As shown, the outer wall of the driving motor 3 is fixedly connected to a holding column 13, and a controller 14 is fixedly installed on the top of the holding column 13. A battery 15 fixedly connected to the holding column 13 is provided on one side of the controller 14, so that the sampling personnel can hold the outer wall of the holding column 13 with their hands and move the holding column 13 downward. The holding column 13 drives the driving motor 3 to move downward, and the controller 14 is powered by the battery 15. The controller 14 starts the driving motor 3 to realize the driving operation of the driving motor 3.

[0032] The top of each sampling cavity tube 7 is fixedly connected to a sampling pump 16, the output end of the sampling pump 16 is fixedly connected to an extraction tube 17, the outer wall of the extraction tube 17 is threadedly connected to a sampling bottle 18, and a sleeve 19 fixedly connected to the slot column 1 is provided below the driving motor 3, and multiple guide columns 8 are fixedly connected to the sleeve 19. In order to start multiple sampling pumps 16 synchronously through the controller 14, multiple sampling cavity tubes 7 can respectively extract the chemical production detection liquid sealed inside the limiting slot cylinder 9, and can realize multi-cavity sampling operation for chemical production detection liquid at different positions. At the same time, the slot column 1 supports the sleeve 19, and the sleeve 19 supports multiple guide columns 8, which can provide stable support force for multiple guide columns 8.

[0033] In this technical solution, as shown in the attached Figure 7 As shown, a chassis 20 is fixedly installed at the bottom end of the slot column 1, and multiple guide columns 8 are fixedly connected to the chassis 20. A distance sensor 21 is provided on one side of one of the guide columns 8 and close to the chassis 20. The distance sensor 21 is fixedly connected to the chassis 20, so that the slot column 1 drives the chassis 20 to move downward, and the chassis 20 contacts the chemical production detection liquid container. At the same time, the bottom end of the chassis 20 fits the bottom end of the inner wall of the container, and the distance sensor 21 can sense the distance of the bottom end of the limit slot cylinder 9. When the distance value sensed by the distance sensor 21 is the same as the distance value set by the controller 14, the drive motor 3 is turned off by the controller 14.

[0034] In this technical solution, as shown in the attached Figure 4-8 As shown, the synchronous liquid inlet sealing sampling mechanism includes a linkage electric cylinder 22 fixedly arranged on the upper surface of the ring groove plate 5; the output end of the linkage electric cylinder 22 is fixedly connected to a connecting ring 23, the outer wall of the output end of the linkage electric cylinder 22 is slidingly connected to the ring groove plate 5, the lower surface of the connecting ring 23 is fixedly connected to a plurality of L-shaped strips 24, the bottom end of the L-shaped strip 24 is fixedly connected to an outer retaining cylinder 25, and the upper and lower surfaces of each outer retaining cylinder 25 are fixedly connected to an outward expansion retaining cylinder 26.

[0035] A connection block 27 is fixedly connected to one side of the inner wall of the outer retaining cylinder 25; a hole frame 28 is fixedly connected to one side of the connection block 27, a guide frame 29 is bonded to the inner wall of the hole frame 28, and the hole frame 28 is fixedly connected to the linkage ring 12. A sleeve block 30 is fixedly connected to the outer wall of the outer retaining cylinder 25 and located at a position adjacent to the L-shaped strip 24. A support rod 31 is slidably connected to the inner wall of the sleeve block 30. Both of the two outer expansion retaining cylinders 26 are fixedly connected to the support rod 31; an induction block 32 is fixedly installed on the upper surface of the guide frame 29. Multiple L-shaped strips 24 are arranged in a circular ring with equal spacing, and the vertical cross-section of the L-shaped strip 24 is L-shaped.

[0036] In this technical solution, as shown in the attached Figure 9-10 As shown, the displacement sampling sensor assembly includes a bracket 33 fixedly arranged at the bottom end of the limiting groove cylinder 9; a groove body 34 is provided on one side of the inner wall of the bracket 33, and a lower pressure sensor 35 is installed on the top of the inner wall of the groove body 34, and the lower pressure sensor 35 is fixedly connected to the bracket 33; a sleeve bracket 36 is fixedly connected to one side of the bracket 33, and an upper pressure sensor 37 is fixedly installed on the top of the inner wall of the sleeve bracket 36. The center point of the output end of the upper pressure sensor 37 is on the same vertical line as the center point of the output end of the lower pressure sensor 35, and the sleeve bracket 36 is used to support the upper pressure sensor 37.

[0037] The use principle of the multi-cavity sampler for chemical production detection of the present invention is as follows:

[0038] Step 1. During placement, the sampling personnel hold the outer wall of the holding column 13 with their hands to move the holding column 13 downward, the holding column 13 drives the driving motor 3 to move downward, the driving motor 3 drives the slot column 1 to move downward, the slot column 1 drives the chassis 20 to move downward, the chassis 20 is moved into the chemical production detection liquid container, and at the same time, the bottom end of the chassis 20 is attached to the bottom end of the inner wall of the container, so that multiple guide columns 8 can be located at three positions respectively.

[0039] Step 2: When sampling multiple cavities synchronously and closed, the controller 14 is powered by the battery 15, and the controller 14 starts the drive motor 3, which drives the screw 2 to rotate, and the screw 2 rotates inside the groove column 1. At the same time, the drive motor 3 screw 2 drives the sleeve block 4 to move downward under the action of the thread transmission force, and the sleeve block 4 will drive the annular groove plate 5 to move downward, and the annular groove plate 5 drives the linkage hole ring 6 to move downward, and the linkage hole ring 6 makes multiple sampling cavity tubes 7 move downward synchronously. The sampling cavity tube 7 drives the limit groove barrel 9 to move downward, and the limit groove barrel 9 slides down along the outer wall of the guide column 8, and at the same time, the limit groove barrel 9 enters the chemical production detection liquid container.

[0040] At the same time, the annular groove plate 5 drives the linkage electric cylinder 22 to move downward, and the linkage electric cylinder 22 can move downward with the annular groove plate 5, so that the connecting ring 23 is also moved downward, and the connecting ring 23 drives multiple L-shaped strips 24 to move downward, and the L-shaped strips 24 drive the outer retaining tube 25 to move downward, and the outer retaining tube 25 drives the connecting block 27 to move downward in linkage, and the connecting block 27 drives the hole frame 28 to make the linkage ring 12 move downward, and the linkage ring 12 drives the sealing rubber ring 11 to move downward synchronously. In this way, the limit groove cylinder 9 and the sealing rubber ring 11 can be inserted into the chemical production detection liquid container synchronously, and the distance sensor 21 can sense the distance of the bottom end of the limit groove cylinder 9. When the distance value sensed by the distance sensor 21 is the same as the distance value set by the controller 14, the driving motor 3 is turned off by the controller 14, and the multiple limit groove cylinders 9 can move to the specified depth position, and the sealing rubber ring 11 and the linkage ring 12 can both realize the sealing operation on the outside of the limit groove cylinder 9, and the multiple limit groove cylinders 9 can be closed to the sampling position of the specified depth.

[0041] Step 3: When sampling and sensing the liquid seal and displacement sampling synchronously, the linkage electric cylinder 22 is started by the controller 14, and the ring groove plate 5 remains stationary, so that the linkage electric cylinder 22 pushes the connecting ring 23 downward, and the connecting ring 23 drives the multiple L-shaped strips 24 to move downward synchronously, and the L-shaped strips 24 drive the outer retaining tube 25 to move downward, and the outer retaining tube 25 drives the two outer expansion retaining tubes 26 to move downward synchronously, and the outer retaining tube 25 can make the sleeve 30 move downward. At the same time, the sleeve 30 drives the support rod 31 downward, and the outer retaining tube 25 drives the connecting block 27 downward, and the connecting block 27 makes the hole frame 28 move downward, and in the process of the hole frame 28 moving downward, it drives the guide frame 29 to move downward, and the hole frame 28 will drive the linkage ring 12 downward, and the linkage ring 12 drives the sealant ring 11 downward, and the sealant ring 11 slides down from the outer wall of the limit groove tube 9. Open the limiting cavity 10 in the limiting groove cylinder 9, so that the chemical production detection liquid can fill the limiting cavity 10 at this depth position, and at the same time, the chemical production detection liquid in the external range can be blocked by the two outward expansion blocking cylinders 26 and the outer blocking cylinder 25 to prevent other flowing chemical production detection liquids from impacting the position of the limiting cavity 10, so that the limiting cavity 10 can accurately sample the chemical production detection liquid at this depth position.

[0042] When the hole frame 28 drives the induction block 32 to move downward, the induction block 32 will approach the position of the lower pressure sensor 35, and at the same time, the limit groove cylinder 9 supports the bracket 33, and the bracket 33 supports the lower pressure sensor 35 inside the groove body 34, so that the induction block 32 is no longer in contact with the upper pressure sensor 37, so that the induction block 32 starts to move downward and squeezes and contacts the sensing end of the lower pressure sensor 35. In this way, the controller 14 can continue to start the linkage electric cylinder 22 to drive the connecting ring 23 to move upward, the connecting ring 23 drives the multiple L-shaped bars 24 to move upward, and the multiple L-shaped bars 24 drive the multiple peripheral blocking cylinders 25 to move upward synchronously, and the peripheral blocking cylinders 25 drive the connecting block 27 to move upward, and the connecting block 27 makes the hole frame 28 move upward, and the hole frame 28 drives the guide frame 29 to move upward.

[0043] At the same time, the hole frame 28 drives the linkage ring 12 to move upward, and the linkage ring 12 drives the sealing rubber ring 11 to move upward, so that the sealing rubber ring 11 can seal the outer wall of the limiting groove barrel 9, and the inside of the limiting groove barrel 9 can be filled with chemical production detection liquid, and the external sealing isolation is achieved. The chemical production detection liquid at this depth position can be sealed to the inside of the limiting cavity 10 for storage and sampling. When the induction block 32 contacts the sensing end of the upper pressure sensor 37, the bracket 33 supports the sleeve bracket 36, and the sleeve bracket 36 supports the upper pressure sensor 37. After the upper pressure sensor 37 senses the pressure value, the linkage electric cylinder 22 is immediately closed through the controller 14.

[0044] Step 4: During sampling and storage, multiple sampling pumps 16 are started synchronously through the controller 14, so that multiple sampling cavity tubes 7 respectively extract the chemical production detection liquid sealed inside the limiting groove cylinder 9, so that the chemical production detection liquid enters the sampling pump 16 along the sampling cavity tube 7, is transported to the extraction tube 17 by the sampling pump 16, and is poured into the sampling bottle 18 by the extraction tube 17. The sampling bottle 18 can realize the storage operation of the chemical production detection liquid, realize multiple sampling cavity tubes 7, and realize multi-cavity sampling operation of the chemical production detection liquid at different positions. After sampling, the sampling bottle 18 is rotated, and the threads between the sampling bottle 18 and the extraction tube 17 are separated, and the sampling bottle 18 can be sent to the designated detection room for detection.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-cavity sampler for chemical production detection, comprising a slot column (1), the inner wall of the slot column (1) being rotatably connected to a screw rod (2), a top end of the slot column (1) being fixedly mounted with a drive motor (3), the drive motor (3) being used to drive the screw rod (2) to rotate, characterized in that: The outer wall of the screw (2) is provided with a multi-cavity synchronous closed positioning sampling mechanism; The multi-cavity synchronous closed positioning sampling mechanism comprises a sleeve block (4) threadedly arranged on the outer wall of the screw rod (2), the sleeve block (4) being slidably connected to the groove column (1), a ring groove plate (5) being fixedly connected to one side of the sleeve block (4), and a linkage hole ring (6) being fixedly connected to one end of the ring groove plate (5); The inner wall of the linkage hole ring (6) is fixedly connected to a plurality of sampling cavity tubes (7), one side of each of the sampling cavity tubes (7) is provided with a guide column (8), the outer wall of the guide column (8) is slidably connected to a limiting groove cylinder (9), and the limiting groove cylinder (9) is fixedly connected to the sampling cavity tube (7); A limiting cavity (10) is provided inside the limiting groove cylinder (9), a sealing rubber ring (11) is slidably connected to the outer wall of the limiting groove cylinder (9), and a linkage ring (12) is bonded to the outer wall of the sealing rubber ring (11); A synchronous liquid inlet sealing sampling mechanism is provided on the upper surface of the annular groove plate (5), and the synchronous liquid inlet sealing sampling mechanism comprises a linkage electric cylinder (22) fixedly arranged on the upper surface of the annular groove plate (5); The output end of the linkage electric cylinder (22) is fixedly connected to a connection ring (23); the outer wall of the output end of the linkage electric cylinder (22) is slidably connected to the ring groove plate (5); a plurality of L-shaped strips (24) are fixedly connected to the lower surface of the connection ring (23); the bottom end of the L-shaped strip (24) is fixedly connected to an outer retaining cylinder (25); the upper surface and the lower surface of each outer retaining cylinder (25) are fixedly connected to an outer expansion retaining cylinder (26); and one side of the inner wall of the outer retaining cylinder (25) is fixedly connected to a connection block (27); A hole frame (28) is fixedly connected to one side of the connection block (27), a guide frame (29) is bonded to the inner wall of the hole frame (28), the hole frame (28) is fixedly connected to the linkage ring (12), a sleeve block (30) is fixedly connected to the outer wall of the outer retaining cylinder (25) and located at a position adjacent to one side of the L-shaped strip (24), a support rod (31) is slidably connected to the inner wall of the sleeve block (30), and the two outer expansion retaining cylinders (26) are fixedly connected to the support rod (31); A sensing block (32) is fixedly mounted on the upper surface of the guide frame (29), and a plurality of L-shaped strips (24) are arranged in a circular ring at equal intervals, and the vertical cross-section of the L-shaped strips (24) is L-shaped; A displacement sampling sensor component is provided at the bottom end of the limiting groove cylinder (9).

2. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: The output end of the driving motor (3) is fixedly connected to the screw rod (2), and the outer wall of the sleeve block (4) and the inner wall of the slot column (1) are both smooth surfaces; The plurality of sampling cavity tubes (7) are arranged in a circular shape and are equidistantly distributed.

3. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: The plurality of guide posts (8) are arranged in a circular ring at equal intervals, and a gap is provided between the bottom end of the sampling cavity tube (7) and the bottom end of the inner wall of the limiting groove cylinder (9).

4. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: A gripping column (13) is fixedly connected to the outer wall of the driving motor (3), a controller (14) is fixedly mounted on the top of the gripping column (13), and a battery (15) fixedly connected to the gripping column (13) is provided on one side of the controller (14).

5. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: The top end of each sampling cavity tube (7) is fixedly connected to a sampling pump (16), the output end of the sampling pump (16) is fixedly connected to an extraction tube (17), and the outer wall of the extraction tube (17) is threadedly connected to a sampling bottle (18); A sleeve frame (19) fixedly connected to the slot column (1) is provided below the driving motor (3), and the plurality of guide columns (8) are all fixedly connected to the sleeve frame (19).

6. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: A chassis (20) is fixedly mounted on the bottom end of the slot column (1), and a plurality of the guide columns (8) are fixedly connected to the chassis (20). A distance sensor (21) is provided on one side of one of the guide columns (8) and close to the chassis (20), and the distance sensor (21) is fixedly connected to the chassis (20).

7. The multi-cavity sampler for chemical production detection according to claim 1, characterized in that: The displacement sampling sensor assembly comprises a bracket (33) fixedly arranged at the bottom end of the limiting groove cylinder (9); A groove body (34) is provided on one side of the inner wall of the bracket (33), a downward pressure sensor (35) is installed on the top of the inner wall of the groove body (34), and the downward pressure sensor (35) is fixedly connected to the bracket (33); A sleeve bracket (36) is fixedly connected to one side of the bracket (33), and an upper pressure sensor (37) is fixedly mounted on the top of the inner wall of the sleeve bracket (36).

8. The multi-cavity sampler for chemical production detection according to claim 7, characterized in that: The center point of the output end of the upper pressure sensor (37) and the center point of the output end of the lower pressure sensor (35) are located on the same vertical line, and the sleeve bracket (36) is used to support the upper pressure sensor (37).

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