Sampling method of intelligent sampling all-in-one machine

Abstract

The invention relates to the technical field of automatic sampling equipment, and discloses a sampling method of an intelligent sampling all-in-one machine, which comprises the following steps in sequence: identity verification, double-loop electrostatic discharge, multi-channel safety linkage detection, sampling bottle taking and placing, material sampling, sampling bottle returning, operation recording and the like. The intelligent sampling all-in-one machine integrates a controller, an identity verification module, an electrostatic discharge device, a safety interlocking device, a storage barrel with an unlocking driving mechanism and other parts, and is matched with a limit switch to realize full-process automatic control of sampling; the problems that in traditional manual sampling, sampling bottles are prone to being lost and damaged, the process is not standardized, and the safety risk is high are solved, the method has the advantages of being standard and controllable in operation, comprehensive in safety protection, accurate in sampling bottle control, adaptive to anti-explosion scenes and the like, is suitable for industrial scenes such as tank car material sampling, can remarkably reduce the consumable cost and potential safety hazards, and has good application prospects. And the sampling efficiency and the quality traceability are improved.

Description

Technical Field

[0001] This invention relates to the technical field of automated sampling equipment, and more specifically, to a sampling method for an integrated intelligent sampling machine. Background Technology

[0002] In the material quality inspection process during tanker unloading operations, material sampling is a crucial preliminary step to ensure the compliance of subsequent unloading and that the material quality meets standards.

[0003] Currently, this sampling process generally relies on traditional manual operation, where operators manually locate and retrieve sampling bottles after the tanker truck stops, and then conduct on-site sampling. The entire process lacks standardized and automated equipment support, resulting in several significant defects in practical applications. For example, under the current model, sampling bottles lack dedicated centralized storage and management mechanisms, and are mostly stored scattered in temporary storage areas or toolboxes, making them prone to loss, damage, and other problems due to improper management. Furthermore, it is impossible to track the usage status of sampling bottles in real time (such as whether they have been returned or are in good condition), resulting in some reusable sampling bottles being left idle due to loss or unclear status, increasing the procurement cost of sampling consumables and wasting resources. Summary of the Invention

[0004] The purpose of this invention is to provide a sampling method for an intelligent sampling integrated machine, which aims to solve the problem that sampling bottles are easily lost or damaged in the prior art.

[0005] This invention provides a sampling method for an integrated intelligent sampling machine, comprising the following steps: S1: After the tanker truck stops at the designated sampling area, the operator authenticates the identity through the identity verification module of the intelligent sampling machine; the intelligent sampling machine includes a controller, an identity verification module, an electrostatic discharge device, a safety interlock device, and a storage bucket; the storage bucket is equipped with an unlocking drive mechanism; the identity verification module, electrostatic discharge device, safety interlock device, and unlocking drive mechanism are electrically connected to the controller respectively; S2: After identity verification, the operator initiates the electrostatic discharge procedure and discharges static electricity from the human body and equipment through the electrostatic discharge device; the safety interlock device includes an electrostatic grounding detection unit, a vehicle static detection unit, and an operation authorization verification unit. S3: After completing the electrostatic discharge, the intelligent sampling integrated machine performs a preset multi-safety interlock detection procedure to confirm that all safety conditions are met; S4: After the safety interlock test is passed, the controller controls the unlocking drive mechanism to unlock the door cover plate on the storage bucket used to seal the opening for taking out and putting out the sample bottle from the opening for taking out and putting out the sample bottle. S5: The operator carries the sampling bottle to the sampling port of the tanker truck to sample the material. S6: After sampling is completed, the sampling bottle is placed back into the storage container, and the operator verifies his / her identity again through the identity verification module; S7: After identity verification, the unlocking drive mechanism is activated to close and lock the door cover. The intelligent sampling integrated machine records the complete operation information of this sampling and completes the sampling and bottle return process.

[0006] Furthermore, the identity verification module in steps S1 and S6 adopts a card swipe verification method, whereby operators complete the entry and verification of identity information by swiping a pre-authorized identity card.

[0007] Furthermore, in step S2, the electrostatic discharge device includes a human body electrostatic discharge ball and an electrostatic grounding clamp, forming a dual-loop electrostatic discharge structure to release static electricity from the human body and static electricity between the equipment and the tanker truck, respectively.

[0008] Furthermore, in step S3, the multi-safety interlocking detection procedure consists of 7 steps, including equipment grounding detection, electrostatic discharge status detection, door closure status detection, sampling bottle storage status detection, explosion-proof environment compliance detection, overload protection status detection, and emergency stop button reset detection. Only after all detection items pass can the process proceed to step S4.

[0009] Furthermore, the operation processes of steps S1 to S7 are all controlled through the explosion-proof operation panel of the intelligent sampling integrated machine. During steps S3 to S7, if the equipment detects an abnormal situation, it will immediately trigger the emergency stop button and overload protection device, cut off the equipment power supply, and issue an audible and visual alarm signal.

[0010] Furthermore, in step S4, the storage container has an internal cavity, and an isolation container for storing the sampling bottle is provided in the internal cavity. A first limit switch for monitoring whether the sampling bottle is stored is installed on the inner side wall of the internal cavity. The monitoring end of the first limit switch penetrates through the side wall of the isolation container and is exposed in the isolation container for contact monitoring with the sampling bottle. The first limit switch is electrically connected to the controller. The top of the isolation bucket extends through the top of the storage bucket and is exposed to the outside. An independent retrieval and placement opening is formed on the top of the isolation bucket, and the door cover is connected to the unlocking drive mechanism. In step S6, the sampling bottle is placed back into the isolation container inside the storage container. The isolation container positions and guides the sampling bottle. Only after the first limit switch detects the sampling bottle's arrival signal can the identity verification in step S7 be performed.

[0011] Furthermore, the unlocking drive mechanism includes a door hinge and a driver. One end of the door hinge is connected to the door cover plate, and the other end of the door hinge vertically penetrates the storage bin and is exposed at the bottom of the storage bin. The driver is installed at the bottom of the storage bin and has a telescopic push rod. A touch rod is connected to the outer end of the telescopic push rod. The touch rod is connected to the other end of the door hinge through the door hinge arm, and the touch rod slides in cooperation with the door hinge arm. The door hinge arm is provided with a guide groove for the touch rod to pass through, and the guide groove extends along the length of the door hinge arm.

[0012] Furthermore, a second limit switch and a third limit switch are provided on the bottom of the storage bin. The second limit switch and the third limit switch are respectively located on both sides of the touch rod, and the second limit switch and the third limit switch are electrically connected to the controller. When the driver receives an open signal, the driver retracts the touch rod via a telescopic push rod, during which the touch rod separates from the second limit switch until the touch rod touches the third limit switch. The second and third limit switches then transmit signals to the controller. The touch rod drives the door hinge to rotate via the door hinge arm, and the door hinge moves the door cover away from the loading / unloading port to open the isolation bucket.

[0013] Furthermore, a limiting ring extends upward from the top of the storage container, and the limiting ring is arranged around the circumference of the retrieval opening. The height of the limiting ring is higher than the height of the retrieval opening. An arc-shaped notch for the door cover to move is opened on one side of the limiting ring. The arc-shaped notch extends laterally through one side of the limiting ring, and the bottom surface of the arc-shaped notch is flush with the end face of the retrieval opening. An elastically deformable sealing layer is provided at the bottom of the door cover. The shape of the sealing layer corresponds to the retrieval opening. An outer sealing ring extends outward from the door cover on the outer side of the sealing layer. The outer sealing ring is arranged around the circumference of the sealing layer and is arranged in an upwardly curved arc shape. When the door cover is placed over the opening, the sealing layer closes the opening to form an inner sealing structure, and the door cover forms an outer sealing structure through the outer sealing ring and the inner sidewall of the limiting ring.

[0014] Furthermore, the inner wall of the isolation barrel is provided with a plurality of buffer isolation strips, which extend along the height direction of the isolation barrel and are arranged at intervals around the circumference of the isolation barrel. The outer surface of the buffer isolation strips is arranged in an arc shape in the circumference. The outer wall of the isolation barrel has a side opening through which the first limit switch passes. The inner wall of the isolation barrel is provided with an elastically deformable membrane that seals the side opening. The monitoring end of the first limit switch monitors a pressure greater than the elastic deformation force of the membrane.

[0015] Compared with existing technologies, the sampling method of the intelligent sampling integrated machine provided by this invention constructs a standardized and automated control system for the entire sampling process, completely changing the disorderly state of traditional manual sampling. It achieves initial control of operation permissions through identity verification, eliminates safety hazards through electrostatic discharge, and builds a solid safety barrier for the sampling process through multiple safety interlocking detections. The placement and return of sampling bottles are all completed under the control of the equipment, and with complete operation information recording, the entire sampling process can be traced. This effectively solves the problem of loss and damage caused by scattered storage of sampling bottles, while improving the standardization and safety of the sampling process and reducing the impact of human factors on sampling quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sampling method of the intelligent sampling all-in-one machine provided by the present invention; Figure 2 This is a three-dimensional schematic diagram of the intelligent sampling integrated machine provided by the present invention; Figure 3 This is a partial frontal three-dimensional schematic diagram of the intelligent sampling integrated machine provided by the present invention; Figure 4 This is a partial bottom-view three-dimensional schematic diagram of the intelligent sampling integrated machine provided by the present invention; Figure 5 This is a three-dimensional schematic diagram of the storage bucket and unlocking drive mechanism provided by the present invention; Figure 6 This is a cross-sectional structural diagram of the limiting ring, door cover plate, and isolation bucket provided by the present invention; Figure 7 This is a cross-sectional structural diagram of the isolation bucket and the first limit switch provided by the present invention.

[0017] In the diagram: 10 sampling unit, 20 explosion-proof operation panel, 30 machine door, 40 human body static discharge ball, 50 static grounding clamp, 60 key manager, 70 storage bucket, 80 unlocking drive mechanism, 90 sampling bottle body, 11 receiving cavity, 71 pick-up and drop-off port, 72 door cover, 73 isolation bucket, 74 first limit switch, 75 limit ring, 76 arc-shaped notch, 721 sealing layer, 722 outer sealing ring, 731 buffer isolation strip, 732 side wall opening, 733 membrane, 81 driver, 82 door hinge, 83 telescopic push rod, 84 touch rod, 85 door hinge arm, 86 second limit switch, 87 third limit switch, 91 extraction handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Reference Figure 1-7 The image shown is a preferred embodiment of the present invention.

[0022] The sampling method of the intelligent sampling all-in-one machine includes the following steps: S1: After the tanker truck stops at the designated sampling area, the operator authenticates the identity through the identity verification module of the intelligent sampling integrated machine 10; the intelligent sampling integrated machine 10 includes a controller, an identity verification module, an electrostatic discharge device, a safety interlock device, and a storage tank 70; the storage tank 70 is equipped with an unlocking drive mechanism 80; the identity verification module, the electrostatic discharge device, the safety interlock device, and the unlocking drive mechanism 80 are electrically connected to the controller respectively. S2: After identity verification, the operator initiates the electrostatic discharge procedure and discharges static electricity from the human body and equipment through the electrostatic discharge device; the safety interlock device includes an electrostatic grounding detection unit, a vehicle static detection unit, and an operation authorization verification unit. S3: After completing the electrostatic discharge, the intelligent sampling all-in-one machine 10 performs a preset multi-safety interlocking detection procedure to confirm that all safety conditions are met; S4: After the safety interlock test is passed, the controller controls the unlocking drive mechanism 80 to unlock the door cover 72 on the storage bucket 70 used to seal the take-out port 71, and the operator takes out the sampling bottle 90 from the take-out port 71. S5: The operator carries the sampling bottle 90 to the sampling port of the tanker truck to sample the material; S6: After sampling is completed, put the sampling bottle 90 back into the storage bucket 70, and the operator verifies his identity again through the identity verification module; S7: After identity verification, unlock the drive mechanism 80, close and lock the door cover 72, and the intelligent sampling integrated machine 10 records the complete operation information of this sampling, completing the sampling and bottle return process.

[0023] The sampling method of the aforementioned intelligent sampling integrated machine establishes a standardized and automated control system for the entire sampling process, completely changing the disorderly state of traditional manual sampling. It achieves initial control over operation permissions through identity verification, eliminates safety hazards through electrostatic discharge, and establishes a robust safety barrier for the sampling process through multiple safety interlocking detections. The placement and return of sampling bottles are all completed under the control of the equipment, and with complete operation information recording, the entire sampling process can be traced. This effectively solves the problem of loss and damage caused by scattered storage of sampling bottles, while improving the standardization and safety of the sampling process and reducing the impact of human factors on sampling quality.

[0024] The intelligent sampling integrated machine 10 has an external opening in the receiving cavity 11, and the storage bucket 70 is located in the receiving cavity 11. The front end of the intelligent sampling integrated machine 10 is provided with a door 30 for sealing the external opening. The machine body is also equipped with a key manager 60 for storing car keys. The key manager 60 is electrically connected to the controller and is used to store vehicle keys. It is only unlocked after the sampling bottle body 90 is returned and the electrostatic clip is put back. In step S3, after the electrostatic discharge is completed, the operator puts the car key into the key manager 60.

[0025] The top of the sampling bottle 90 is equipped with an extraction handle 91.

[0026] In this embodiment, the identity verification module in steps S1 and S6 adopts a card swipe verification method, whereby the operator completes the identity information entry and verification by swiping a pre-authorized identity card.

[0027] The pre-authorized card swipe verification method simplifies the identity verification process, improves operational efficiency, and avoids errors caused by manual data entry. The pre-authorized card can accurately limit operation permissions, prevent unauthorized personnel from interfering with the sampling process, and ensure the professionalism and seriousness of the sampling operation. At the same time, the card swipe verification information can be stored synchronously, providing identity association evidence for subsequent operation traceability and further strengthening the control of the sampling process.

[0028] In this embodiment, in step S2, the electrostatic discharge device includes a human body electrostatic discharge ball 40 and an electrostatic grounding clamp 50, forming a dual-loop electrostatic discharge structure to release the static electricity of the human body and the static electricity between the equipment and the tank truck, respectively.

[0029] The dual-circuit electrostatic discharge structure fills the gaps in the traditional single electrostatic discharge method. The human body electrostatic discharge ball 40 specifically eliminates static electricity on the operator's body, while the electrostatic grounding clamp 50 solves the problem of static electricity accumulation between the equipment and the tank truck. The dual protection can effectively avoid safety accidents such as material combustion, explosion or pollution caused by static electricity. It is especially suitable for sampling scenarios of flammable and explosive materials, greatly improving the safety protection level of the sampling process and ensuring the safety of personnel, equipment and materials.

[0030] In this embodiment, step S3 involves seven safety interlocking tests, including equipment grounding test, electrostatic discharge status test, door 30 closed status test, sampling bottle storage status test, explosion-proof environment compliance test, overload protection status test, and emergency stop button reset test. Only after all tests are passed can the process proceed to step S4.

[0031] Seven safety interlocking checks comprehensively cover key safety risk points in the sampling process, from basic equipment status (grounding), static electricity control, equipment component status (machine door 30, sampling bottle 90), to environmental compliance (explosion-proof), equipment protection (overload), and emergency mechanisms (emergency stop button), forming a comprehensive safety screening. The process can only proceed if all items pass, minimizing the overall accident risk caused by single-point safety hazards, ensuring that the sampling process strictly follows safety regulations, and adapting to the high-standard safety requirements of industrial scenarios.

[0032] In this embodiment, the operation process of steps S1 to S7 is controlled by the explosion-proof operation panel 20 of the intelligent sampling integrated machine 10. During steps S3 to S7, if the equipment detects an abnormal situation, it will immediately trigger the emergency stop button and overload protection device, cut off the equipment power supply, and issue an audible and visual alarm signal.

[0033] The explosion-proof control panel 20 is specifically designed for flammable and explosive sampling environments, preventing environmental safety accidents caused by the control panel and expanding the applicability of the equipment. The abnormal handling mechanism enables timely risk mitigation, power cut-off can prevent equipment failure from escalating, and audible and visual alarm signals can quickly remind operators to handle problems and reduce losses caused by accidents. The centralized control throughout the process improves the convenience of operation while ensuring the stability and safety of equipment operation.

[0034] In this embodiment, in step S4, the storage container 70 has an internal cavity, and an isolation container 73 for storing the sampling bottle 90 is provided in the internal cavity. A first limit switch 74 for monitoring whether the sampling bottle 90 is stored is installed on the inner side wall of the internal cavity. The monitoring end of the first limit switch 74 penetrates through the side wall of the isolation container 73 and is exposed in the isolation container 73 for contact monitoring with the sampling bottle 90. The first limit switch 74 is electrically connected to the controller. The top of the isolation bucket 73 extends through the top of the storage bucket 70 and is exposed on its exterior. An independent access port 71 is formed on the top of the isolation bucket 73. The door cover 72 is connected to the unlocking drive mechanism 80. In step S6, the sampling bottle 90 is placed back into the isolation container 73 inside the storage container 70. The isolation container 73 positions and guides the sampling bottle 90. Only after the first limit switch 74 detects the sampling bottle 90 in place can the identity verification in step S7 be performed.

[0035] The isolation container 73 provides precise guidance and positioning for the sampling bottle 90, ensuring that the sampling bottle 90 is stored in a fixed posture, avoiding damage caused by collisions or tilting during storage, and preventing the sampling bottle 90 from being placed haphazardly, which would affect the efficiency of picking and placing. The first limit switch 74 can monitor the contact with the sampling bottle 90 and provide real-time feedback on the position status of the sampling bottle 90 (whether it is stored or returned to the correct location), and transmit the signal to the controller to realize the position control of the sampling bottle 90, thus solving the problem of the lack of effective monitoring of the sampling bottle 90 and the inability to confirm the return status in the prior art. The door cover 72 is linked with the unlocking drive mechanism 80 and can only be opened after the safety interlock conditions are met and the controller unlocking command is received, forming an authorized access mechanism for the sampling bottle 90, preventing unauthorized personnel from taking the sampling bottle 90 without authorization, and further strengthening the closed-loop control of the sampling bottle 90. The opening 71 at the top of the isolation container 73, combined with the door cover 72, ensures convenient access and reduces contamination of the sampling bottle 90 by the external environment, making it particularly suitable for sampling scenarios where high material purity is required.

[0036] The storage container 70 is equipped with multiple isolation containers 73 for storing sample bottles 90. The multiple isolation containers 73 are arranged side by side in sequence, and the height between adjacent door covers 72 is arranged in a stepped manner to avoid collisions when swiping the card.

[0037] In this embodiment, the unlocking drive mechanism 80 includes a door hinge 82 and a driver 81. One end of the door hinge 82 is connected to the door cover plate 72, and the other end of the door hinge 82 vertically penetrates the storage bin 70 and is exposed at the bottom of the storage bin 70. The driver 81 is installed at the bottom of the storage bin 70 and has a telescopic push rod 83. A touch rod 84 is connected to the outer end of the telescopic push rod 83. The touch rod 84 is connected to the other end of the door hinge 82 through the door hinge arm 85, and the touch rod 84 slides with the door hinge arm 85. The door hinge arm 85 is provided with a guide groove through which the touch rod 84 passes, and the guide groove extends along the length of the door hinge arm 85.

[0038] The unlocking drive mechanism 80 adopts a precise mechanical transmission design. The linear motion of the telescopic push rod 83 driving the touch rod 84 is converted into the rotational motion of the door hinge 82 through the door hinge arm 85, realizing the stable opening and closing of the door cover 72. The guide groove ensures smooth sliding cooperation between the touch rod 84 and the door hinge arm 85, avoiding jamming and improving the stability and reliability of the mechanism. This structure has high transmission efficiency and strong durability, which can reduce the frequency and cost of equipment maintenance and ensure the smooth operation of the sampling bottle picking and placing process.

[0039] In this embodiment, a second limit switch 86 and a third limit switch 87 are provided on the bottom of the storage bucket 70. The second limit switch 86 and the third limit switch 87 are located on both sides of the touch rod 84, and the second limit switch 86 and the third limit switch 87 are electrically connected to the controller. When the driver 81 receives the open signal, the driver 81 drives the touch rod 84 to retract via the telescopic push rod 83. During this process, the touch rod 84 separates from the second limit switch 86 until the touch rod 84 touches the third limit switch 87. The second limit switch 86 and the third limit switch 87 respectively transmit signals to the controller. The touch rod 84 drives the door hinge 82 to rotate via the door hinge arm 85. The door hinge 82 drives the door cover plate 72 away from the loading and unloading port 71, thereby opening the isolation bucket 73.

[0040] The second limit switch 86 and the third limit switch 87 form a bidirectional travel limit, which precisely limits the movement range of the touch rod 84, thereby accurately controlling the opening angle of the door cover 72 and avoiding excessive structural stress caused by excessive opening of the door cover 72 or poor sealing caused by incomplete closing. The second limit switch 86 and the third limit switch 87 are electrically connected to the controller, respectively, and feed back the travel signal of the touch rod 84 to the controller in real time, so that the controller can accurately grasp the opening and closing status of the door cover 72, realize the closed-loop control of "unlock command - drive action - travel feedback - status confirmation", and improve the accuracy and controllability of equipment operation.

[0041] In this embodiment, a limiting ring 75 extends upward from the top of the storage bucket 70. The limiting ring 75 is arranged around the circumference of the opening 71. The height of the limiting ring 75 is higher than the height of the opening 71. An arc-shaped notch 76 for the door cover 72 to move is opened on one side of the limiting ring 75. The arc-shaped notch 76 passes through one side of the limiting ring 75 laterally. The bottom surface of the arc-shaped notch 76 is flush with the end face of the opening 71. An elastically deformable sealing layer 721 is provided at the bottom of the door cover 72. The shape of the sealing layer 721 corresponds to the opening 71. An outer sealing ring 722 extends outward from the door cover 72 on the outer side of the sealing layer 721. The outer sealing ring 722 is arranged around the circumference of the sealing layer 721 and is arranged in an upward curved arc shape. When the door cover 72 covers the opening 71, the sealing layer 721 closes the opening 71 to form an inner sealing structure, and the door cover 72 forms an outer sealing structure with the inner wall of the limiting ring 75 through the outer sealing ring 722.

[0042] The inner and outer sealing structures form a double protection. The sealing layer 721 can effectively block external dust and impurities from entering the storage container 70, protecting the sampling bottle 90 and the materials inside the bottle from contamination. The outer sealing ring 722 is an upward-curved arc shape that fits tightly against the inner wall of the limiting ring 75, enhancing the sealing effect and preventing material volatilization and leakage. The arc-shaped notch 76 on the limiting ring 75 provides adaptation space for the movement of the door cover 72, avoiding collision between the door cover 72 and the limiting ring 75 when the door cover 72 moves, ensuring the smooth opening and closing of the door cover 72, and extending the service life of the equipment components.

[0043] In this embodiment, a plurality of buffer isolation strips 731 are protruding on the inner wall of the isolation barrel 73. The buffer isolation strips 731 extend along the height direction of the isolation barrel 73, and the plurality of buffer isolation strips 731 are arranged at intervals around the circumference of the isolation barrel 73. The outer surface of the buffer isolation strips 731 is arranged in an arc shape in the circumference. The outer wall of the isolation barrel 73 has a side wall opening 732 through which the first limit switch 74 passes. The inner wall of the isolation barrel 73 is provided with an elastically deformable membrane 733, which covers the side wall opening 732. The monitoring end of the first limit switch 74 monitors a pressure greater than the elastic deformation force of the membrane 733.

[0044] The arc-shaped buffer isolation strip 731 can buffer and reduce shock during the handling of the sampling bottle, reducing friction and collision between the sampling bottle body 90 and the inner wall of the isolation barrel 73, effectively protecting the sampling bottle body 90. The membrane 733 seals the side opening 732 to prevent dust or foreign objects from entering the isolation barrel 73 and to prevent materials from entering the side opening 732 and affecting the normal operation of the first limit switch 74, ensuring the stability of the monitoring component. The monitoring pressure of the first limit switch 74 is greater than the deformation force of the membrane 733, ensuring that the monitoring end can penetrate the membrane 733 and accurately contact the sampling bottle body 90, realizing accurate monitoring of the state of the sampling bottle body 90, and balancing component protection and monitoring accuracy.

[0045] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling method for an intelligent sampling all-in-one machine, characterized in that, Includes the following steps: S1: After the tanker truck stops at the designated sampling area, the operator authenticates the identity through the identity verification module of the intelligent sampling machine; the intelligent sampling machine includes a controller, an identity verification module, an electrostatic discharge device, a safety interlock device, and a storage bucket; the storage bucket is equipped with an unlocking drive mechanism; the identity verification module, electrostatic discharge device, safety interlock device, and unlocking drive mechanism are electrically connected to the controller respectively; S2: After identity verification, the operator initiates the electrostatic discharge procedure and discharges static electricity from the human body and equipment through the electrostatic discharge device; the safety interlock device includes an electrostatic grounding detection unit, a vehicle static detection unit, and an operation authorization verification unit. S3: After completing the electrostatic discharge, the intelligent sampling integrated machine performs a preset multi-safety interlock detection procedure to confirm that all safety conditions are met; S4: After the safety interlock test is passed, the controller controls the unlocking drive mechanism to unlock the door cover plate on the storage bucket used to seal the opening for taking out and putting out the sample bottle from the opening for taking out and putting out the sample bottle. S5: The operator carries the sampling bottle to the sampling port of the tanker truck to sample the material. S6: After sampling is completed, the sampling bottle is placed back into the storage container, and the operator verifies his / her identity again through the identity verification module; S7: After identity verification, the unlocking drive mechanism is activated to close and lock the door cover. The intelligent sampling integrated machine records the complete operation information of this sampling and completes the sampling and bottle return process.

2. The sampling method of the intelligent sampling integrated machine as described in claim 1, characterized in that, The identity verification module in steps S1 and S6 adopts a card swipe verification method, whereby operators complete the entry and verification of identity information by swiping a pre-authorized identity card.

3. The sampling method of the intelligent sampling integrated machine as described in claim 1, characterized in that, In step S2, the electrostatic discharge device includes a human body electrostatic discharge ball and an electrostatic grounding clamp, forming a dual-loop electrostatic discharge structure to release static electricity from the human body and static electricity between the equipment and the tank truck, respectively.

4. The sampling method of the intelligent sampling integrated machine as described in claim 3, characterized in that, In step S3, the multi-safety interlocking test procedure consists of 7 steps, including equipment grounding test, electrostatic discharge status test, door closing status test, sampling bottle storage status test, explosion-proof environment compliance test, overload protection status test, and emergency stop button reset test. Only after all test items pass the test can the process proceed to step S4.

5. The sampling method of the intelligent sampling integrated machine as described in claim 4, characterized in that, The operation process from step S1 to step S7 is controlled through the explosion-proof operation panel of the intelligent sampling integrated machine. During steps S3 to S7, if the equipment detects an abnormal situation, it will immediately trigger the emergency stop button and overload protection device, cut off the equipment power supply, and issue an audible and visual alarm signal.

6. The sampling method of the intelligent sampling integrated machine as described in any one of claims 1 to 5, characterized in that, In step S4, the storage container has an internal cavity, and an isolation container for storing the sampling bottle is provided in the internal cavity. A first limit switch for monitoring whether the sampling bottle is stored is installed on the inner side wall of the internal cavity. The monitoring end of the first limit switch penetrates through the side wall of the isolation container and is exposed in the isolation container for contact monitoring with the sampling bottle. The first limit switch is electrically connected to the controller. The top of the isolation bucket extends through the top of the storage bucket and is exposed to the outside. An independent retrieval and placement opening is formed on the top of the isolation bucket, and the door cover is connected to the unlocking drive mechanism. In step S6, the sampling bottle is placed back into the isolation container inside the storage container. The isolation container positions and guides the sampling bottle. Only after the first limit switch detects the sampling bottle's arrival signal can the identity verification in step S7 be performed.

7. The sampling method of the intelligent sampling integrated machine as described in claim 6, characterized in that, The unlocking drive mechanism includes a door hinge and a driver. One end of the door hinge is connected to the door cover plate, and the other end of the door hinge vertically penetrates the storage bin and is exposed at the bottom of the storage bin. The driver is installed at the bottom of the storage bin and has a telescopic push rod. A touch rod is connected to the outer end of the telescopic push rod. The touch rod is connected to the other end of the door hinge through the door hinge arm, and the touch rod slides in cooperation with the door hinge arm. The door hinge arm is provided with a guide groove for the touch rod to pass through, and the guide groove extends along the length of the door hinge arm.

8. The sampling method of the intelligent sampling integrated machine as described in claim 7, characterized in that, The bottom of the storage bin is provided with a second limit switch and a third limit switch. The second limit switch and the third limit switch are respectively located on both sides of the touch rod. The second limit switch and the third limit switch are respectively electrically connected to the controller. When the driver receives an open signal, the driver retracts the touch rod via a telescopic push rod, during which the touch rod separates from the second limit switch until the touch rod touches the third limit switch. The second and third limit switches then transmit signals to the controller. The touch rod drives the door hinge to rotate via the door hinge arm, and the door hinge moves the door cover away from the loading / unloading port to open the isolation bucket.

9. The sampling method of the intelligent sampling integrated machine as described in claim 8, characterized in that, The storage container has a limiting ring extending upward from its top. The limiting ring is arranged around the circumference of the retrieval opening, and its height is higher than that of the retrieval opening. An arc-shaped notch for the door cover to move is opened on one side of the limiting ring. The arc-shaped notch extends laterally through one side of the limiting ring, and its bottom surface is flush with the end face of the retrieval opening. The bottom of the door cover is provided with an elastically deformable sealing layer. The shape of the sealing layer corresponds to the retrieval opening. The outer side of the sealing layer has an outer sealing ring extending outward from the door cover. The outer sealing ring is arranged around the circumference of the sealing layer and is arranged in an upwardly curved arc shape. When the door cover is placed over the opening, the sealing layer closes the opening to form an inner sealing structure, and the door cover forms an outer sealing structure through the outer sealing ring and the inner sidewall of the limiting ring.

10. The sampling method of the intelligent sampling integrated machine as described in claim 6, characterized in that, Multiple buffer isolation strips are protruding on the inner wall of the isolation barrel. The buffer isolation strips extend along the height direction of the isolation barrel, and the multiple buffer isolation strips are arranged at intervals around the circumference of the isolation barrel. The outer surface of the buffer isolation strips is arranged in an arc shape in the circumference. The outer wall of the isolation barrel has a side opening through which the first limit switch passes. The inner wall of the isolation barrel is provided with an elastically deformable membrane that seals the side opening. The monitoring end of the first limit switch monitors a pressure greater than the elastic deformation force of the membrane.

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