Industrial wastewater sampling system

Abstract

The invention relates to the technical field of industrial wastewater sampling and discloses an industrial wastewater sampling system.The industrial wastewater sampling system comprises a frame, a connecting frame, a hydraulic cylinder and a rectangular plate, the connecting frame is located in the frame and slidably arranged in parallel, and the bottom of the hydraulic cylinder and the right side of the interior of the connecting frame are fixedly mounted; the upper surface of the rectangular plate and one end of an output shaft of a hydraulic cylinder are fixedly mounted, and a trigger sampling mechanism is arranged in the rectangular plate. According to the industrial wastewater sampling system, when a trigger rod is in contact with the bottom of a canal, a connecting spring and a telescopic rod in a power rebound mechanism are compressed, a third rack is driven to move upwards, a valve switch control mechanism is linked, a first butterfly valve and a second butterfly valve are synchronously closed, and a sampling barrel is sealed; it is ensured that the water sample is captured at the moment when the sampler is stabilized at the target depth and bottom mud is not stirred, and therefore index distortion of suspended solids and adsorptive heavy metal is effectively avoided, and the authenticity of the sample and the accuracy of detection data are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial wastewater sampling, in particular to an industrial wastewater sampling system. BACKGROUND

[0002] Industrial wastewater refers to water containing pollutants and losing original use function generated in industrial production processes, such as processing, cooling, cleaning, disinfection and other links. Its sources are extensive, including chemical industry, metallurgy, printing and dyeing, papermaking, electroplating and other industries. The composition is complex and variable, often containing heavy metals, toxic organic matter, high concentration of acid and alkali, suspended solids and other pollutants. Among them, industrial wastewater sampling is a key link in environmental monitoring and water pollution control. The core goal is to obtain a representative sample that can truly reflect the characteristics of wastewater quality. Sampling points need to be scientifically laid out according to the monitoring purpose, such as workshop discharge port or enterprise total discharge port.

[0003] The industrial wastewater sampling workflow in the prior art usually starts with detailed planning, which clearly defines the sampling point, frequency and method. Then the operator drives the sampling vehicle to the site. First, the working condition is investigated and safety protection is carried out. The selected point is used with a cleaned sampler. According to the water quality fluctuation characteristics, instantaneous samples or mixed samples are collected. The sample is immediately transferred to the pretreated sample bottle, and the preservative is added according to the regulation, sealed, labeled and low-temperature refrigerated. Finally, all samples are sent to the laboratory for analysis together with complete records. During the period, the sample storage time limit and chain management need to be strictly guaranteed to ensure the accuracy and representativeness of the monitoring data.

[0004] When sampling, sampling operation can only be carried out at fixed positions. The concentration of wastewater on the channel cross section may be uneven. Sampling at only one point is not representative. Although the problem of sampling at multiple places can be solved, when sampling at multiple places, the position of the sampling bottle needs to be moved, which will cause the stability of the overall sampling vehicle to be unstable. This not only affects the accurate positioning of the sampling point, but also may introduce operation risks due to the instability of the vehicle body, which damages the spatial representativeness of the sample and the reliability of the data.

[0005] Although the problems of multiple sampling and stable balance of sampling can be solved during sampling, in channels with slow flow rate or sediment, the traditional sampling bottle will disturb the bottom mud when sinking, causing the water sample to mix with the sediment that does not belong to this time point, making the indicators such as suspended solids and heavy metals seriously distorted, deviating from the true water quality condition, so as to mislead the pollution source judgment and treatment efficiency evaluation, and reduce the accuracy during sampling. SUMMARY

[0006] In view of the deficiencies of the prior art, the industrial wastewater sampling system provided by the present application has the advantages of simultaneous sampling at different positions, maintaining stability during sampling, and avoiding interference of water bottom sludge and other impurities during sampling, thereby solving the problems raised in the background art.

[0007] The industrial wastewater sampling structure provided by the present application has the following technical scheme: a vehicle frame, a connecting frame, a hydraulic cylinder and a rectangular plate are provided, the connecting frame is arranged in parallel and slidably in the interior of the vehicle frame, the bottom of the hydraulic cylinder is fixedly installed on the right side in the interior of the connecting frame, the upper surface of the rectangular plate is fixedly installed on one end of the output shaft of the hydraulic cylinder, and a trigger sampling mechanism is arranged in the interior of the rectangular plate. A valve switch control mechanism for converting sampling down pressure into valve control force is arranged at the power input end of the trigger sampling mechanism, and a power rebound mechanism for converting control down force into rebound force is arranged at the power output end of the valve switch control mechanism. The trigger sampling mechanism is composed of the valve switch control mechanism and the power rebound mechanism.

[0008] Preferably, the valve switch control mechanism comprises a sampling cylinder, a butterfly valve one, a control valve rod one, a valve plate one, a gear two, a butterfly valve two, a control valve rod two, a valve plate two and a gear three, the outer surface of the sampling cylinder is fixedly installed on the right side in the interior of the rectangular plate, the outer surface of the butterfly valve one is fixedly installed in the interior of the top end of the sampling cylinder, the outer surface of the control valve rod one is control-installed in the interior of the butterfly valve one, one side of the valve plate one is fixedly installed on one end of the control valve rod one, the temple of the gear two is fixedly installed on the outer surface of the control valve rod one, the outer surface of the butterfly valve two is fixedly installed in the interior of the bottom end of the sampling cylinder, the outer surface of the control valve rod two is control-installed in the interior of the butterfly valve two, one side of the valve plate two is fixedly installed on one end of the control valve rod two, and the interior of the gear three is fixedly installed on the outer surface of the control valve rod two.

[0009] Preferably, the power rebound mechanism comprises a rack three, a fixed block one, a connecting spring, an extension rod, a fixed block two and a trigger rod, the outer surface of the rack three is slidably installed on the inner wall of the rectangular plate, the top of the fixed block one is fixedly installed on the bottom of the rack three, one end of the connecting spring is fixedly installed on the lower surface of the fixed block one, one end of the extension rod is fixedly installed on the lower surface of the fixed block one, the upper surfaces of the fixed block two are fixedly installed on the other ends of the connecting spring and the extension rod, and the top end of the trigger rod is fixedly installed on the lower surface of the fixed block two.

[0010] Preferably, the outer surfaces of the gear two and the control valve rod two are engaged with the front surface of the rack three, for controlling the opening and closing operations of the butterfly valve one and the butterfly valve two.

[0011] Preferably, the upper surface of the frame is fixedly provided with a receiving frame, the upper surface of the receiving frame is provided with a moving balance mechanism, the moving balance mechanism comprises a threaded moving block, a rack one, a gear one, a rack two, a cross plate and a counterweight, the outer surface of the threaded moving block is slidably connected with the inner wall of the receiving frame, the bottom of the rack one is fixedly connected with the upper surface of the threaded moving block, the outer surface of the gear one is engaged with the upper surface of the rack one, the lower surface of the rack two is engaged with the outer surface of the gear one, the lower surface of the cross plate is fixedly connected with the left side of the upper surface of the rack two, and the upper surface of the counterweight is fixedly connected with the lower surface of the cross plate.

[0012] Preferably, the upper surface of the receiving frame is provided with a rectangular groove, the inner wall of the rectangular groove is slidably connected with the outer surface of the bottom end of the counterweight, the left side of the receiving frame is fixedly provided with a driving motor, one end of the output shaft of the driving motor is fixedly provided with a screw rod, the outer surface of the screw rod is threadedly connected with the inner wall of the threaded moving block, and the bottom of the threaded moving block is fixedly connected with the upper surface of the connecting frame.

[0013] Preferably, the right side of the upper surface of the receiving frame is fixedly provided with a fixed plate, the inner wall of the fixed plate is rotatably connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with the inner part of the gear one.

[0014] Preferably, the right side of the receiving frame is fixedly provided with a T-shaped limiting block, the inner wall of the T-shaped limiting block is slidably connected with the outer surface of the rack one, and the inner wall of the T-shaped limiting block is slidably connected with the outer surface of the rack two.

[0015] Preferably, the bottom of the frame is provided with moving wheels on both sides, and the left side of the upper surface of the frame is fixedly provided with a handrail frame.

[0016] An industrial wastewater sampling system, a moving balance and positioning system, a non-disturbance triggering sampling system and an integrated power and bearing system; The moving balance and positioning system drives the screw rod to rotate through the driving motor, drives the threaded moving block and the connecting frame to move transversely and position, and drives the rack one, the gear one and the rack two to move the counterweight in the opposite direction synchronously, so as to provide dynamic stability guarantee for the whole equipment when sampling at the cross point and provide accurate spatial positioning for the non-disturbance triggering sampling system. The non-disturbance triggering sampling system is provided with a hydraulic cylinder to provide downward power to drive the rectangular plate and the sampling cylinder to sink, when the trigger rod contacts the channel bottom, the connecting spring is compressed and the rack three is pushed upward, the gear two and the gear three are instantaneously driven to control the butterfly valve one and the butterfly valve two to be closed synchronously, the instantaneous sealing sampling at the specified depth is completed, the bottom mud disturbance is fundamentally avoided, and the representativeness of the sample is ensured. The integrated power and bearing system is composed of a moving platform based on a frame and moving wheels, manual movement and guidance is realized through a handrail, the internal bearing frame provides installation basis for the moving balance and positioning system, and provides structural support for the hydraulic cylinder and other execution elements, and each subsystem is integrated into a stable and movable organic whole to complete the precise and representative sampling task in complex industrial environment.

[0017] Compared with the prior art, the present application has the following beneficial effects: 1. The industrial wastewater sampling structure, when the trigger rod contacts the channel bottom, the connecting spring and the telescopic rod in the power rebound mechanism are compressed, the driving rack three is raised, the linkage valve switch control mechanism is driven, the butterfly valve one and the butterfly valve two are synchronously closed, the sampling cylinder is sealed, and it is ensured that the water sample is captured at the moment when the sampler is stable at the target depth and the bottom mud is not stirred, so that the distortion of suspended solids and adsorbed heavy metal indicators is effectively avoided, and the authenticity of the sample and the accuracy of the detection data are improved.

[0018] 2. The industrial wastewater sampling structure, when the driving motor drives the screw rod to rotate, the threaded moving block and the connecting frame are driven to move transversely to adjust the sampling position, the rack one fixed on the threaded moving block drives the gear one, and the rack two and the counterweight block on the other side are driven to move reversely and synchronously, the dynamic balance mechanism makes the frame stable on the moving wheel, avoids shaking or tilting caused by the shift of the center of gravity, and guarantees the accurate positioning of the sampling point and the operation safety. DETAILED DESCRIPTION

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present application; Figure 2 It is a schematic diagram of the top view structure of the present application; Figure 1 It is a schematic diagram of the back view structure of the present application; Figure 3 Figure 1 It is a schematic diagram of the bottom view structure of the present application; Figure 4 It is a schematic diagram of the bottom view structure of the present application; Figure 1 It is a schematic diagram of the sectional view structure of the present application; Figure 5 Figure 1 It is a schematic diagram of the sectional view structure of the present application; Figure 6 It is a schematic diagram of the sectional view structure of the present application; Figure 5 It is a schematic diagram of the side view structure of the present application; Figure 7 Figure 5 It is a schematic diagram of the side view structure of the present application; Figure 8 It is a schematic diagram of the side view structure of the present application; Figure 7

[0020] ​​​​As shown in the figure, 1 is a frame, 2 is a moving wheel, 3 is a handrail frame, 4 is a bearing frame, 5 is a driving motor, 6 is a screw rod, 7 is a threaded moving block, 8 is a rack one, 9 is a fixed plate, 10 is a rotating shaft, 11 is a gear one, 12 is a rack two, 13 is a cross plate, 14 is a counterweight, 15 is a rectangular groove, 16 is a T-shaped limiting block, 17 is a connecting frame, 18 is a hydraulic cylinder, 19 is a rectangular plate, 20 is a sampling cylinder, 21 is a butterfly valve one, 22 is a control valve rod one, 23 is a valve plate one, 24 is a gear two, 25 is a butterfly valve two, 26 is a control valve rod two, 27 is a valve plate two, 28 is a gear three, 29 is a rack three, 30 is a fixed block one, 31 is a connecting spring, 32 is an extension rod, 33 is a fixed block two, and 34 is a trigger rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figure 1 , Figure 5 , Figure 7 and Figure 8 , an industrial wastewater sampling structure includes a frame 1, a connecting frame 17, a hydraulic cylinder 18 and a rectangular plate 19, the connecting frame 17 is arranged in parallel inside the frame 1, the bottom of the hydraulic cylinder 18 is fixedly installed on the right side inside the connecting frame 17, the upper surface of the rectangular plate 19 is fixedly installed on one end of the output shaft of the hydraulic cylinder 18, and a trigger sampling mechanism is arranged inside the rectangular plate 19. The power input end of the trigger sampling mechanism is provided with a valve switch control mechanism for converting sampling downward pressure into valve control force, and the power output end of the valve switch control mechanism is provided with a power rebound mechanism for converting control downward force into rebound force. The trigger sampling mechanism is composed of a valve switch control mechanism and a power rebound mechanism. The valve switch control mechanism comprises a sampling cylinder 20, a butterfly valve 21, a control valve rod 22, a valve plate 23, a gear 24, a butterfly valve 25, a control valve rod 26, a valve plate 27, and a gear 28. The outer surface of the sampling cylinder 20 is fixedly installed on the right side of the inside of the rectangular plate 19. The outer surface of the butterfly valve 21 is fixedly installed on the inside of the top end of the sampling cylinder 20. The outer surface of the control valve rod 22 is controlly installed on the inside of the butterfly valve 21. One side of the valve plate 23 is fixedly installed on one end of the control valve rod 22. The temple of the gear 24 is fixedly installed on the outer surface of the control valve rod 22. The outer surface of the butterfly valve 25 is fixedly installed on the inside of the bottom end of the sampling cylinder 20. The outer surface of the control valve rod 26 is controlly installed on the inside of the butterfly valve 25. One side of the valve plate 27 is fixedly installed on one end of the control valve rod 26. The inside of the gear 28 is fixedly installed on the outer surface of the control valve rod 26. The power rebound mechanism comprises a rack 29, a fixed block 30, a connecting spring 31, a telescopic rod 32, a fixed block 33, and a trigger rod 34. The outer surface of the rack 29 is slidingly installed on the inner wall of the rectangular plate 19. The top of the fixed block 30 is fixedly installed on the bottom of the rack 29. One end of the connecting spring 31 is fixedly installed on the lower surface of the fixed block 30. One end of the telescopic rod 32 is fixedly installed on the lower surface of the fixed block 30. The upper surfaces of the fixed block 33 are fixedly installed on the other ends of the connecting spring 31 and the telescopic rod 32. The top end of the trigger rod 34 is fixedly installed on the lower surface of the fixed block 33. The outer surfaces of the gear 24 and the control valve rod 26 are engaged with the front surface of the rack 29, for controlling the opening and closing operations of the butterfly valve 21 and the butterfly valve 25.

[0023] Specifically, the valve switch control mechanism transmits power accurately to the control valve rod 22 and the control valve rod 26 through the engagement transmission of the gear 24, the gear 28, and the rack 29, thereby accurately controlling the opening and closing of the butterfly valve 21 and the butterfly valve 25, ensuring the accuracy and timeliness of the valve switch during sampling, effectively avoiding sampling quantity errors or wastewater leakage caused by inaccurate valve control, improving the reliability and accuracy of sampling, and the power rebound mechanism cooperates with the valve switch control mechanism. When the trigger rod 34 is acted on by an external force, the fixed block 33, the connecting spring 31, and the telescopic rod 32 are driven to move, thereby moving the rack 29, opening the butterfly valve, and after sampling is completed, the elastic force of the connecting spring 31 rebounds the rack 29, closes the sampling, the whole process does not need manual operation, realizes the automation of sampling, improves the sampling efficiency, reduces the labor cost and the influence of human factors on the sampling result, And through the hydraulic cylinder 18 drive rectangular plate 19 down, and then trigger sampling mechanism sampling operation, compared with the traditional sampling method, improve the sampling efficiency, reduce the labor input and operation time, and the sampling down pressure into the valve control force, can accurately control the butterfly valve one 21 and butterfly valve two 25 switch, ensure the accurate interception of wastewater during sampling, avoid the problem of inaccurate sampling or incomplete sampling.

[0024] Please refer to Figure 1 、 Figure 5 And Figure 6 The upper surface of the frame 1 is fixedly installed with a receiving frame 4, the upper surface of the receiving frame 4 is provided with a moving balance mechanism, the moving balance mechanism comprises a threaded moving block 7, a rack one 8, a gear one 11, a rack two 12, a cross plate 13 and a counterweight 14, the outer surface of the threaded moving block 7 is in sliding connection with the inner wall of the receiving frame 4, the bottom of the rack one 8 is fixedly installed with the upper surface of the threaded moving block 7, the outer surface of the gear one 11 is in engagement with the upper surface of the rack one 8, the lower surface of the rack two 12 is in engagement with the outer surface of the gear one 11, the lower surface of the cross plate 13 is fixedly installed with the left side of the upper surface of the rack two 12, the upper surface of the counterweight 14 is fixedly installed with the lower surface of the cross plate 13, the upper surface of the receiving frame 4 is provided with a rectangular groove 15, the inner wall of the rectangular groove 15 is in sliding connection with the outer surface of the bottom end of the counterweight 14, the left side of the receiving frame 4 is fixedly installed with a driving motor 5, one end of the output shaft of the driving motor 5 is fixedly installed with a screw rod 6, the outer surface of the screw rod 6 is in threaded installation with the inner wall of the threaded moving block 7, and the bottom of the threaded moving block 7 is fixedly installed with the upper surface of the connecting frame 17, the right side of the upper surface of the receiving frame 4 is fixedly installed with a fixed plate 9, the inner wall of the fixed plate 9 is rotatably installed with a rotating shaft 10, the outer surface of the rotating shaft 10 is fixedly installed with the inside of the gear one 11, the right side of the receiving frame 4 is fixedly installed with a T-shaped limiting block 16, the inner wall of the T-shaped limiting block 16 is in sliding connection with the outer surface of the rack one 8, and the inner wall of the T-shaped limiting block 16 is in sliding connection with the outer surface of the rack two 12.

[0025] Specifically, the moving balance mechanism can effectively balance the unbalanced force generated by various factors during the operation of the equipment through the setting of the counterweight 14, when the frame 1 and the connecting frame 17 are moving or performing sampling operation, the counterweight 14 adjusts the position accordingly with the movement of the threaded moving block 7, uses its own gravity to offset part of the unstable factors, so that the whole equipment can maintain a good balance state in horizontal and vertical directions, reduces the shaking and vibration, thereby improves the stability and reliability of the equipment operation, prolongs the service life of the equipment, And drive motor 5 drive screw 6 rotation, screw 6 and screw block 7 screw installation, so that screw block 7 can be in the wall of the frame 4 accurate sliding, by controlling the speed and direction of drive motor 5, can accurately control the moving distance and direction of screw block 7, in turn drive the connection frame 17 and the sampling structure below accurate to reach the designated sampling position, meet the position accuracy requirements of industrial wastewater sampling, improve the accuracy of sampling, gear one 11 is engaged with rack one 8 and rack two 12, when screw block 7 moves drive rack one 8, through the transmission of gear one 11, rack two 12 will move in the opposite direction, thereby driving the horizontal plate 13 and the counterweight block 14 move, the horizontal movement of screw block 7 is converted into the reverse movement of counterweight block 14, the automatic adjustment of balance is realized, the inner wall of T type limiting block 16 and the outer surface of rack one 8 and rack two 12 are slidingly connected, which can limit the movement range of the rack, further enhancing the operation safety of the equipment.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , the bottom of the frame 1 both sides are provided with mobile wheel 2, the upper surface of the frame 1 left side is fixedly installed with handrail 3.

[0027] Specifically, the mobile wheel 2 arranged at the bottom of the frame 1 both sides, so that the whole equipment can be easily moved in the industrial field, when the sampling position needs to be changed or work in different areas, the operator only needs to exert a small force to push the handrail 3, which can drive the equipment to move quickly and stably, greatly improving the work efficiency and reducing the labor intensity of manual handling, especially suitable for large area, sampling point scattered industrial wastewater treatment place, and the handrail 3 fixedly installed on the upper surface of the frame 1 left side provides a stable force point for the operator, the operator can conveniently hold the handrail 3 to control the moving direction and speed of the equipment, ensuring that the equipment can accurately reach the target position during movement.

[0028] An industrial wastewater sampling system, mobile balance and positioning system, undisturbed triggering sampling system and integrated power and bearing system; The mobile balance and positioning system drives screw 6 to rotate by drive motor 5, drives screw block 7 and connection frame 17 to move horizontally, and drives rack one 8, gear one 11 and rack two 12 to move synchronously, so that counterweight block 14 moves reversely, which provides dynamic stability guarantee for the whole equipment when sampling at different positions, and provides accurate spatial positioning for the undisturbed triggering sampling system; The undisturbed trigger sampling system is driven by the hydraulic cylinder 18 to push the rectangular plate 19 and the sampling cylinder 20 to sink, when the trigger lever 34 contacts the channel bottom, the connecting spring 31 is compressed and the rack three 29 is pushed up, the gear two 24 and the gear three 28 are driven instantly to control the butterfly valve one 21 and the butterfly valve two 25 to close synchronously, the instantaneous sealing sampling at the specified depth is completed, the bottom mud disturbance is fundamentally avoided and the sample representativeness is ensured; The integrated power and bearing system is based on the frame 1 and the moving wheel 2 to form a moving platform, the manual movement and guidance are realized through the handrail frame 3, the internal bearing frame 4 provides the installation basis for the moving balance and positioning system, and provides the structural support for the execution elements such as the hydraulic cylinder 18, the subsystems are integrated into a stable and movable organic whole, and the precise and representative sampling task in the complex industrial environment is completed.

[0029] Specifically, the moving balance and positioning system drives the screw rod 6 to rotate through the driving motor 5, the threaded moving block 7 and the connecting frame 17 are driven to move and position laterally, the undisturbed trigger sampling system can be provided with extremely precise spatial positioning, the sampling position is ensured to be accurate and accurate, the undisturbed trigger sampling system is driven by the hydraulic cylinder 18 to provide stable and strong downward action, the rectangular plate 19 and the sampling cylinder 20 are pushed to sink to the specified depth, when the trigger lever 34 contacts the channel bottom, the connecting spring 31 can be compressed rapidly and the rack three 29 is pushed up, the gear two 24 and the gear three 28 are driven instantly, the butterfly valve one 21 and the butterfly valve two 25 are precisely controlled to close synchronously, the whole system realizes the automatic and precise sampling process, the time and error of manual operation are reduced, the operator only needs to control the driving motor 5 and the hydraulic cylinder 18 and the like to quickly complete the positioning and sampling operation of the equipment, and the sampling efficiency is greatly improved.

[0030] The working principle is that when the operator pushes the frame 1 through the handrails 3 to different sampling points by means of the moving wheels 2, the driving motor 5 is started, the driving motor 5 drives the screw rod 6 to rotate, the screw rod 6 drives the threaded moving block 7 connected therewith to move horizontally in the receiving frame 4, the threaded moving block 7 drives the entire sampling mechanism including the sampling cylinder 20 and the like below the threaded moving block 7 to move transversely through the connecting frame 17, so as to realize the adjustment of the sampling point, at the same time, the rack one 8 fixed on the threaded moving block 7 moves and drives the gear one 11 engaged therewith to rotate, the gear one 11 drives the other side rack two 12 engaged therewith to move reversely and synchronously, the rack two 12 drives the counterweight block 14 in the rectangular groove 15 through the cross plate 13 to slide, the moving direction of the counterweight block 14 is opposite to the moving direction of the sampling mechanism, the moving balance mechanism realizes real-time offset of the eccentric moment generated by the movement of the sampling mechanism by dynamically adjusting the position of the counterweight block 14, so as to ensure the stable balance of the frame 1 during the entire transverse sampling process, the position is determined and the equipment is stable, the hydraulic cylinder 18 is started, the output shaft of the hydraulic cylinder 18 extends downward, pushes the rectangular plate 19 and the trigger sampling mechanism integrated in the rectangular plate 19 to descend vertically, the sampling cylinder 20 enters the water body, at this time, the butterfly valve one 21 at the top of the sampling cylinder 20 and the butterfly valve two 25 at the bottom are both in the open state, the water flow can smoothly pass through the sampling cylinder 20, and the power rebound mechanism composed of the fixed block two 33, the trigger rod 34 connected at the bottom, the connecting spring 31 and the telescopic rod 32 is in the natural extension state at this time, when the bottom end of the trigger rod 34 contacts the bottom of the channel, the sampling cylinder 20 is located at the preset sampling depth, along with the continuous provision of the slight downward pressure of the hydraulic cylinder 18, the trigger rod 34 is subjected to the upward reaction force, pushes the fixed block two 33 to compress the connecting spring 31 and drives the telescopic rod 32 to contract, the fixed block two 33 moves upward, pushes the fixed block one 30 at the top and the rack three 29 integrated with the fixed block one 30 to slide upward in the rectangular plate 19, the rack three 29 serves as the power input of the valve opening and closing control mechanism, the upward movement of the rack three 29 drives the gear two 24 and the gear three 28 engaged therewith to rotate, the gear two 24 drives the control valve rod one 22 and the valve plate one 23 to rotate, the gear three 28 drives the control valve rod two 26 and the valve plate two 27 to rotate, so that the butterfly valve one 21 and the butterfly valve two 25 are quickly closed, the two ends of the sampling cylinder 20 are instantaneously sealed, the real water sample at the depth is effectively captured, and the bottom mud is avoided from being stirred up.

[0031] In the system device, the driving motor 5 can be selected as 57BYG250C two-phase hybrid stepper motor, the hydraulic cylinder 18 can be selected as MOB40*50 micro hydraulic cylinder, the butterfly valve one 21 and the butterfly valve two 25 are selected as DN50 stainless steel quick closing butterfly valve, the linkage process is that when the driving motor 5 drives the threaded moving block 7 to move horizontally through the screw rod 6, the linkage rack one 8 drives the gear one 11 to make the counterweight block 14 move reversely to maintain balance, when the hydraulic cylinder 18 pushes the sampling cylinder 20 to sink to the contact rod 34 to contact the channel bottom, the compressed connecting spring 31 will immediately push the rack three 29 to move upward, synchronously drive the gear two 24 and the gear three 28 to drive the butterfly valve one 21 and the butterfly valve two 25 to complete the quick closing, and realize the accurate sampling of mechanical transmission.

[0032] It should be noted that the above-mentioned electrical elements and electrical equipment use external power supply, the circuit, electronic components and modules involved in the present application are prior art, and those skilled in the art can realize them without further description, and the content protected by the present application does not involve the improvement of internal structure and method; in addition, in this article, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0033] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An industrial wastewater sampling structure, characterized by: Including frame (1), connecting frame (19), hydraulic cylinder (18) and rectangular plate (19), the connecting frame (17) is located inside the parallel sliding frame (1), the bottom of the hydraulic cylinder (18) is fixedly installed with the right side inside the connecting frame (17), the upper surface of the rectangular plate (19) is fixedly installed with one end of the hydraulic cylinder (18) output shaft, the inside of the rectangular plate (19) is provided with trigger sampling mechanism; The power input end of the trigger sampling mechanism is provided with a valve switch control mechanism for converting sampling down pressure into valve control force, and the power output end of the valve switch control mechanism is provided with a power rebound mechanism for converting control down force into rebound force. The trigger sampling mechanism is composed of the valve switch control mechanism and the power rebound mechanism.

2. An industrial wastewater sampling structure according to claim 1, wherein: The valve switch control mechanism comprises a sampling cylinder (20), a butterfly valve (21), a control valve rod (22), a valve plate (23), a gear (24), a butterfly valve (25), a control valve rod (26), a valve plate (27) and a gear (28), the outer surface of the sampling cylinder (20) is fixedly installed with the right side inside the rectangular plate (19), the outer surface of the butterfly valve (21) is fixedly installed with the inside of the top end of the sampling cylinder (20), the outer surface of the control valve rod (22) is fixedly installed with the inside of the butterfly valve (21), one side of the valve plate (23) is fixedly installed with one end of the control valve rod (22), the temple of the gear (24) is fixedly installed with the outer surface of the control valve rod (22), the outer surface of the butterfly valve (25) is fixedly installed with the inside of the bottom end of the sampling cylinder (20), the outer surface of the control valve rod (26) is fixedly installed with the inside of the butterfly valve (25), one side of the valve plate (27) is fixedly installed with one end of the control valve rod (26), the inside of the gear (28) is fixedly installed with the outer surface of the control valve rod (26).

3. An industrial wastewater sampling structure as claimed in claim 1, wherein: The power rebound mechanism comprises a rack (29), a fixed block (30), a connecting spring (31), a telescopic rod (32), a fixed block (33) and a trigger rod (34), the outer surface of the rack (29) is slidingly installed with the inner wall of the rectangular plate (19), the top of the fixed block (30) is fixedly installed with the bottom of the rack (29), one end of the connecting spring (31) is fixedly installed with the lower surface of the fixed block (30), one end of the telescopic rod (32) is fixedly installed with the lower surface of the fixed block (30), the upper surfaces of the fixed block (33) are fixedly installed with the other end of the connecting spring (31) and the telescopic rod (32), and the top end of the trigger rod (34) is fixedly installed with the lower surface of the fixed block (33).

4. An industrial wastewater sampling structure as claimed in claim 2, wherein: The outer surfaces of the gear (24) and the control valve rod (26) are engaged with the front surface of the rack (29), which is used for controlling the opening and closing operation of the butterfly valve (21) and the butterfly valve (25).

5. The industrial wastewater sampling structure of claim 1, wherein: The upper surface of the frame (1) is fixedly provided with a receiving frame (4), the upper surface of the receiving frame (4) is provided with a moving balance mechanism, the moving balance mechanism comprises a threaded moving block (7), a rack one (8), a gear one (11), a rack two (12), a cross plate (13) and a counterweight block (14), the outer surface of the threaded moving block (7) is slidably connected with the inner wall of the receiving frame (4), the bottom of the rack one (8) is fixedly installed on the upper surface of the threaded moving block (7), the outer surface of the gear one (11) is engaged with the upper surface of the rack one (8), the lower surface of the rack two (12) is engaged with the outer surface of the gear one (11), the lower surface of the cross plate (13) is fixedly installed on the left side of the upper surface of the rack two (12), and the upper surface of the counterweight block (14) is fixedly installed on the lower surface of the cross plate (13).

6. An industrial wastewater sampling structure according to claim 5, wherein: The upper surface of the receiving frame (4) is provided with a rectangular groove (15), the inner wall of the rectangular groove (15) is slidably connected with the outer surface of the bottom end of the counterweight block (14), the left side of the receiving frame (4) is fixedly provided with a driving motor (5), one end of the output shaft of the driving motor (5) is fixedly provided with a screw rod (6), the outer surface of the screw rod (6) is threadedly installed on the inner wall of the threaded moving block (7), and the bottom of the threaded moving block (7) is fixedly installed on the upper surface of the connecting frame (17).

7. An industrial wastewater sampling structure as claimed in claim 5, wherein: The right side of the upper surface of the receiving frame (4) is fixedly provided with a fixed plate (9), the inner wall of the fixed plate (9) is rotatably provided with a rotating shaft (10), and the outer surface of the rotating shaft (10) is fixedly installed in the gear one (11).

8. An industrial wastewater sampling structure as claimed in claim 5, wherein: The right side of the receiving frame (4) is fixedly provided with a T-shaped limiting block (16), the inner wall of the T-shaped limiting block (16) is slidably connected with the outer surface of the rack one (8), and the inner wall of the T-shaped limiting block (16) is slidably connected with the outer surface of the rack two (12).

9. An industrial wastewater sampling structure as claimed in claim 1, wherein: The bottom of the frame (1) is provided with moving wheels (2) on both sides, and the left side of the upper surface of the frame (1) is fixedly provided with a handrail frame (3).

10. An industrial wastewater sampling system characterized by: The moving balance and positioning system, the undisturbed triggering sampling system and the integrated power and bearing system; The moving balance and positioning system drives the screw rod (6) to rotate through the driving motor (5), drives the threaded moving block (7) and the connecting frame (17) to move transversely and be positioned, drives the rack one (8), the gear one (11) and the rack two (12) to move synchronously in the opposite direction, provides dynamic stability guarantee for the whole equipment when sampling at the cross point, and provides accurate spatial positioning for the undisturbed triggering sampling system; The undisturbed triggering sampling system is provided with a hydraulic cylinder (18) to provide downward power to drive the rectangular plate (19) and the sampling cylinder (20) to sink, when the trigger rod (34) contacts the bottom of the channel, the connecting spring (31) is compressed and drives the rack three (29) to go up, instantaneously drives the gear two (24) and the gear three (28) to control the butterfly valve one (21) and the butterfly valve two (25) to be closed synchronously, completes the instantaneous sealing sampling at the specified depth, fundamentally avoids the disturbance of the bottom mud and ensures the representativeness of the sample. The integrated power and bearing system is based on a frame (1) and a moving wheel (2) to form a moving platform, manual movement and guidance are achieved through a handrail frame (3), an internal receiving frame (4) provides a mounting base for a moving balance and positioning system, and provides structural support for an executing element such as a hydraulic cylinder (18), and integrates each subsystem into a stable and movable organic whole, and together completes a precise and representative sampling task in a complex industrial environment.

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