Sewage sampling bottle for environmental detection

Abstract

The application belongs to the technical field of environmental detection equipment, and discloses a sewage sampling bottle for environmental detection. The application comprises a cup body and a connecting frame fixed to the top of the cup body. A stepped water inlet is arranged through the side wall of one side of the cup body. The size of the water inlet close to the inner side of the cup body is larger than that close to the outer side of the cup body. An installation plate is fixed between the inner walls of the cup body. The installation plate is provided with a baffle for cooperating with the water inlet and a driving mechanism for controlling the opening and closing of the baffle. The driving mechanism is arranged to control the closing or opening of the water inlet by the baffle.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, and in particular to a wastewater sampling bottle for environmental monitoring. Background Technology

[0002] Wastewater sampling bottles are specialized containers used in environmental monitoring for collecting, preserving, and transporting wastewater samples. Their core function is to ensure that wastewater samples maintain their original characteristics throughout the entire process from collection to testing, providing accurate and reliable samples for subsequent water quality analysis.

[0003] Chinese utility model patent CN212568048U discloses a wastewater sampling bottle for environmental testing, comprising a cup body, a top cover movably mounted on the top of the cup body, and a connecting line movably mounted on the top of the top cover. A top plate is fixedly mounted on the end of the connecting line away from the top cover. A rotating rod is movably mounted at the center of the inner wall of the bottom of the cup body, and a turntable is fixedly sleeved on the outer wall of the rotating rod. An adjusting rod is movably sleeved inside the outer side of the cup body, and a wheel is fixedly mounted on the end of the adjusting rod inside the cup body. A sealing plate is fixedly mounted on the inner wall of the cup body, and a sliding rod is movably sleeved on the inner side of the outer edge of the sealing plate. An adjusting plate is fixedly mounted on the top of the end of the sliding rod above the sealing plate. A fixed frame is mounted on the inner wall of the cup body, and a moving rod is movably sleeved on the inner side of the center of the vertical part of the fixed frame. A closing plate is fixedly mounted on the end of the moving rod near the inlet. A spring is wound around the outer side of the moving rod, and the spring is located between the closing plate and the inner wall of the fixed frame.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In the above-mentioned equipment, when water flows into the cup through the inlet, the pressure of the water flow is required to force the closing plate to open. When the cup is full, the water flow inside the cup forces the closing plate to close. However, when the staff needs to collect sewage from a shallower location, the pressure of the sewage is insufficient to overcome the elasticity of the spring and force the closing plate to open, which is not conducive to the collection of sewage. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a wastewater sampling bottle for environmental monitoring.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a wastewater sampling bottle for environmental testing, comprising a cup body and a connecting frame fixed to the top of the cup body, wherein a stepped water inlet is provided through the side wall of one side of the cup body, the size of the water inlet near the inner side of the cup body is larger than its size near the outer side of the cup body, an mounting plate is fixed between the inner walls of the cup body, and a baffle for cooperating with the water inlet and a drive mechanism for controlling the opening and closing of the baffle are provided on the mounting plate.

[0007] By adopting the above technical solution, when workers need to collect wastewater, they connect to an external robotic arm or rope via a connecting frame. The robotic arm or rope then lowers the cup into the wastewater. Workers use a drive mechanism to open a baffle, allowing wastewater to enter the cup through the inlet. After sampling, workers use the drive mechanism to close the inlet, and finally, the robotic arm or rope lifts the cup above the wastewater surface, completing the wastewater collection. This application changes the traditional design where the baffle is forced to open or close the inlet by water pressure, ensuring the effective collection of wastewater.

[0008] Furthermore, the driving mechanism includes a connecting assembly, which consists of four sets evenly distributed. Each set of the connecting assembly includes a sliding sleeve fixed to the side of the mounting plate near the baffle and a sliding rod fixed to the side of the baffle near the mounting plate and slidably engaged with the sliding sleeve. The end of the sliding rod away from the baffle has a through slot, and a fixing rod is fixed in the slot. The connecting assembly also includes a fixing strip fixed to the side of the mounting plate near the baffle, a rotating rod rotatably mounted on the fixing strip, and a swing rod fixedly sleeved on the rotating rod. The swing rod has a through hole for the fixing rod to slide and engage. The side walls on both sides of the sliding sleeve have through slots for the swing rod to pass through. The driving mechanism also includes a transmission assembly for driving the four sets of rotating rods to rotate synchronously.

[0009] By adopting the above technical solution, when the staff needs to open or close the water inlet, the staff can drive the four sets of rotating rods to rotate synchronously through the transmission component, so that the rotating rod drives the swing rod to rotate. Since the sliding rod and the sliding sleeve are in sliding cooperation, and the fixed rod and the slotted hole are in sliding cooperation, the swing rod drives the sliding rod to slide, which in turn drives the baffle to move, thereby realizing the action of opening or closing the water inlet.

[0010] Furthermore, the transmission assembly includes a drive motor fixed to the side of the mounting plate near the baffle, a worm gear fixed to the output end of the drive motor, and a worm wheel coaxially fixed to the end of the rotating rod and meshing with the worm gear. The ends of the two rotating rods on the same side of the drive motor are fixed to the top and bottom of the worm wheel respectively. There are two worm wheels symmetrically distributed on both sides of the drive motor. A controller and a battery electrically connected to the drive motor are fixed on the side wall of the mounting plate.

[0011] By adopting the above technical solution, when it is necessary to control the synchronous rotation of four sets of rotating rods, the operator can drive the drive motor to rotate through the controller. The drive motor drives the worm fixed to its output end, the worm wheel meshing with the worm, and the rotating rod fixed to the worm wheel to rotate, thus realizing the opening or closing of the baffle.

[0012] Furthermore, an annular rubber sheet is attached and fixed to the side wall of the water inlet near the baffle, and a pressure sensor is embedded in the side wall of the annular rubber sheet near the mounting plate. The pressure sensor is electrically connected to the controller.

[0013] By adopting the above technical solution, the annular rubber sheet is made of rubber material, which has a certain degree of softness and compressibility. When the operator drives the baffle to close the water inlet, the cooperation between the baffle and the annular rubber sheet forms a good sealing effect, preventing sewage leakage. The pressure sensor can detect the pressure applied by the baffle and transmit the pressure to the controller in the form of an electrical signal. When the pressure value reaches the preset value, the drive motor stops working to avoid damage to the drive mechanism due to excessive operation of the drive motor.

[0014] Furthermore, a filter screen is provided on the outer wall of the cup body to prevent debris from entering the water inlet.

[0015] By adopting the above technical solution, the filter screen reduces the entry of algae and other debris from the wastewater into the cup, preventing them from entering the inlet and affecting wastewater sampling, and potentially interfering with subsequent testing.

[0016] Furthermore, a counterweight is fixed to the bottom of the cup.

[0017] By adopting the above technical solution and setting the counterweight, the overall weight of the sewage sampling bottle is increased, allowing the sewage sampling bottle to sink quickly so that sewage sampling can be carried out.

[0018] Furthermore, an acoustic sensor for measuring the distance between the water inlet and the riverbed is provided on one side wall of the cup body. A through hole is provided through the counterweight at the position corresponding to the acoustic sensor. The acoustic sensor is electrically connected to the controller.

[0019] By adopting the above technical solution, before sewage sampling, staff can set the sewage sampling depth through the controller. The acoustic sensor monitors the distance between the inlet and the riverbed in real time and transmits the data to the controller. When the distance reaches the sampling depth, the controller controls the drive motor to run and opens the baffle, thereby sampling the sewage at the specified depth.

[0020] Furthermore, a liquid level sensor for measuring the liquid level inside the cup is fixed inside the cup, and the liquid level sensor is electrically connected to the controller.

[0021] By adopting the above technical solution and setting up a liquid level sensor, the water level in the cup is monitored in real time. When the sewage level in the cup reaches the set value, the controller controls the drive motor and causes the baffle to close the water inlet, thus completing the sewage sampling work.

[0022] In summary, this utility model has the following beneficial effects: When staff need to collect sewage, they connect to an external robotic arm or rope via a connecting frame, and then place the cup into the sewage using the robotic arm or rope. The staff can then use a drive mechanism to open the baffle, allowing sewage to enter the cup from the inlet. After sampling, the staff can use the drive mechanism to close the inlet with the baffle, and finally use the robotic arm or rope to lift the cup above the sewage surface, thus completing the collection of sewage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 yes Figure 1 Another perspective on the overall structure; Figure 3 This is a schematic diagram illustrating the structure of the connecting component in an embodiment of this utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram illustrating the structure of the drive mechanism in an embodiment of this utility model; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is an exploded view of an embodiment of the present invention to highlight the swing arm and the sliding arm.

[0024] In the diagram: 1. Cup body; 11. Connecting frame; 12. Inlet; 13. Baffle; 14. Annular rubber sheet; 15. Pressure sensor; 16. Filter screen; 2. Mounting plate; 3. Drive mechanism; 31. Connecting assembly; 311. Sliding sleeve; 3111. Through groove; 312. Sliding rod; 3121. Groove; 3122. Fixing rod; 313. Fixing strip; 314. Rotating rod; 315. Swinging rod; 3151. Straight hole; 32. Transmission assembly; 321. Drive motor; 322. Worm gear; 323. Worm wheel; 4. Controller; 5. Battery; 6. Protective shell; 7. Weight; 71. Through hole; 8. Acoustic sensor; 9. Liquid level sensor. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-7 As shown in the figure, this application discloses a wastewater sampling bottle for environmental testing, including a cup body 1, a mounting plate 2, a baffle 13, and a driving mechanism 3. A connecting frame 11 is fixed to the top of the cup body 1, which is used to connect to an external robotic arm or rope. A stepped inlet 12 is provided through one side wall of the cup body 1, and the size of the inlet 12 near the inner side of the cup body 1 is larger than the size near the outer side of the cup body 1. The mounting plate 2 is fixed to the inner wall of the cup body 1, and the baffle 13 is disposed on the mounting plate 2 and cooperates with the inlet 12.

[0027] The drive mechanism 3 is mounted on the mounting plate 2 and is used to control the opening and closing of the baffle 13. The drive mechanism 3 includes a connecting assembly 31 and a transmission assembly 32. The connecting assembly 31 has four sets evenly distributed, each including a sliding sleeve 311, a sliding rod 312, a fixing strip 313, a rotating rod 314, and a swing rod 315. The sliding sleeve 311 is fixed to the side of the mounting plate 2 near the baffle 13, and through grooves 3111 are provided on both sides of the sliding sleeve 311. The sliding rod 312 is fixed to the side of the baffle 13 near the mounting plate 2, and the sliding rod 312 slides in cooperation with the sliding sleeve 311. A slot 3121 is provided at the end of the sliding rod 312 away from the baffle 13, and a fixing rod 3122 is fixed inside the slot 3121. The fixing strip 313 is fixed to the side of the mounting plate 2 near the baffle 13, and the rotating rod 314 is rotatably mounted on the fixing strip 313. The swing rod 315 is fixedly sleeved on the rotating rod 314, and a slotted hole 3151 is provided through the swing rod 315. The slotted hole 3151 is slidably engaged with the fixed rod 3122.

[0028] The transmission assembly 32 drives four sets of rotating rods 314 to rotate synchronously. The transmission assembly 32 includes a drive motor 321, a worm gear 322, and a worm wheel 323. The drive motor 321 is fixed to the side of the mounting plate 2 near the baffle 13. In this embodiment, a protective shell 6 is provided on the side of the mounting plate 2 near the baffle 13 to prevent the drive motor 321 from being corroded by sewage. In this embodiment, the rotating rods 314 pass through the protective shell 6 and are rotatably connected. The rotating rods 314 and the protective shell 6 are sealed during rotation by a rotary shaft seal. The rotary shaft seal is a conventional setting in the mechanical field and will not be described in detail here. The worm gear 322 is fixed to the output end of the drive motor 321, and the axis of the worm gear 322 coincides with the axis of the output end of the drive motor 321. The worm gear 323 is coaxially fixed to the end of the rotating rod 314 and meshes with the worm 322. The top and bottom of the worm gear 323 are respectively fixed to the ends of the two rotating rods 314 on the same side of the drive motor 321 that are close to each other. There are two worm gears 323 and they are symmetrically distributed on both sides of the drive motor 321. In this embodiment, a controller 4 (the controller 4 can be a Siemens S7-1200 model) and a battery 5 are fixed on the side wall of the mounting plate 2. Both the controller 4 and the battery 5 are electrically connected to the drive motor 321.

[0029] When staff need to collect wastewater, they connect to an external robotic arm or rope via the connecting frame 11. The robotic arm or rope then lowers the cup 1 into the wastewater. The staff uses the controller 4 to drive the drive motor 321, which in turn drives the worm gear 322 fixed to its output end, the worm wheel 323 meshing with the worm gear 322, the rotating rod 314 fixed to the worm wheel 323, and the swing rod 315 fixed to the rotating rod 314. Due to the sliding rod 312 and the sliding sleeve 311... The sliding engagement, with the fixed rod 3122 slidingly engaging with the slotted hole 3151, allows the swing rod 315 to drive the sliding rod 312 to slide, which in turn causes the sliding rod 312 to move the baffle 13, thereby opening the inlet 12. Wastewater enters the cup body 1 from the inlet 12. After sampling, the staff can use the controller 4 to drive the drive mechanism 3 to close the inlet 12 with the baffle 13. Finally, the cup body 1 is lifted off the wastewater surface by a mechanical arm or rope connection, thus completing the collection of wastewater.

[0030] In this embodiment, an annular rubber sheet 14 is attached and fixed to the side wall of the inlet 12 near the baffle 13, and the annular rubber sheet 14 abuts against the baffle 13. A pressure sensor 15 is embedded in the side wall of the annular rubber sheet 14 near the mounting plate 2, and the pressure sensor 15 is electrically connected to the controller 4. The annular rubber sheet 14 is made of rubber material and has a certain degree of softness and compressibility. When the operator drives the baffle 13 to close the inlet 12, the cooperation between the baffle 13 and the annular rubber sheet 14 forms a good sealing effect, preventing sewage leakage. The pressure sensor 15 can detect the pressure applied by the baffle 13 and transmit the pressure to the controller 4 in the form of an electrical signal. When the pressure value reaches the preset value, the drive motor 321 stops working to avoid damage to the drive mechanism 3 due to excessive operation of the drive motor 321.

[0031] In this embodiment, a filter screen 16 is provided on the outer wall of the cup body 1. The filter screen 16 is used to prevent debris from entering the inlet 12. The filter screen 16 reduces the possibility of algae and other debris in the sewage entering the cup body 1, preventing them from entering the inlet 12 and affecting sewage sampling, or even interfering with subsequent testing. In this embodiment, a counterweight 7 is fixed to the bottom of the cup body 1. The counterweight 7 increases the overall weight of the sewage sampling bottle, allowing it to sink quickly for sewage sampling.

[0032] In this embodiment, an acoustic sensor 8 (which can be a Maxbotix MB7740 model) is installed on the side wall of one side of the cup body 1. The acoustic sensor emits ultrasonic waves, which propagate unobstructed through the through-hole of the counterweight to the riverbed. After receiving the echo, the distance is calculated by the speed of sound and the time difference, and the data is transmitted to the controller. When the distance from the inlet to the riverbed reaches the set sampling depth, the controller drives the motor to open the baffle to complete the sampling of sewage at the specified depth. The acoustic sensor is used to measure the distance between the inlet 12 and the riverbed, and the acoustic sensor 8 is electrically connected to the controller 4. A through-hole 71 is provided through the counterweight 7 at the position corresponding to the acoustic sensor 8. Before sewage sampling, the staff can set the sewage sampling depth through the controller 4. The acoustic sensor 8 monitors the distance between the inlet 12 and the riverbed in real time and transmits the data to the controller 4. When the distance reaches the sampling depth, the controller 4 controls the drive motor 321 to run and open the baffle 13, thereby sampling sewage at the specified depth.

[0033] In this embodiment, a liquid level sensor 9 is fixed inside the cup body 1 (the liquid level sensor 9 can be an E+HFMX167 model, which is a hydrostatic contact level gauge. It senses the hydrostatic pressure of the sewage inside the cup body 1 through a pressure-sensitive element, converts the pressure signal into an analog quantity, and transmits it to the controller 4. The controller calculates the liquid level based on a preset sewage density, and when the set value is reached, it controls the drive motor to close the baffle, completing the sampling process). The liquid level sensor 9 is used to measure the internal liquid level height, and it is electrically connected to the controller 4. The liquid level sensor 9 monitors the water level height inside the cup body 1 in real time. When the sewage level inside the cup body 1 reaches the set value, the controller 4 controls the drive motor 321 and causes the baffle 13 to close the inlet 12, completing the sewage sampling process.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A wastewater sampling bottle for environmental testing, comprising a cup body (1) and a connecting frame (11) fixed to the top of the cup body (1), characterized in that: A stepped water inlet (12) is provided through one side wall of the cup body (1). The size of the water inlet (12) near the inside of the cup body (1) is larger than the size near the outside of the cup body (1). An installation plate (2) is fixed between the inner walls of the cup body (1). The installation plate (2) is provided with a baffle (13) for cooperating with the water inlet (12) and a drive mechanism (3) for controlling the opening and closing of the baffle (13).

2. The wastewater sampling bottle for environmental monitoring according to claim 1, characterized in that: The driving mechanism (3) includes a connecting assembly (31), which is arranged in four groups and evenly distributed. Each group of the connecting assembly (31) includes a sliding sleeve (311) fixed to the side of the mounting plate (2) near the baffle (13) and a sliding rod (312) fixed to the side of the baffle (13) near the mounting plate (2) and slidingly engaged with the sliding sleeve (311). The end of the sliding rod (312) away from the baffle (13) is provided with a slot (3121), and a fixing rod (3122) is fixed in the slot (3121). The connecting assembly (31) also includes a fixing rod. The mounting plate (2) includes a fixed strip (313) near the baffle (13), a rotating rod (314) rotatably mounted on the fixed strip (313), and a swing rod (315) fixedly sleeved on the rotating rod (314). The swing rod (315) has a through hole (3151) for sliding cooperation with the fixed rod (3122). The side walls on both sides of the sliding sleeve (311) have through slots (3111) for the swing rod (315) to pass through. The driving mechanism (3) also includes a transmission assembly (32) for driving the four sets of rotating rods (314) to rotate synchronously.

3. A wastewater sampling bottle for environmental monitoring according to claim 2, characterized in that: The transmission assembly (32) includes a drive motor (321) fixed to the side of the mounting plate (2) near the baffle (13), a worm (322) fixed to the output end of the drive motor (321), and a worm wheel (323) coaxially fixed to the end of the rotating rod (314) and meshing with the worm (322). The ends of the two rotating rods (314) on the same side of the drive motor (321) that are close to each other are fixed to the top and bottom of the worm wheel (323) respectively. There are two worm wheels (323) symmetrically distributed on both sides of the drive motor (321). A controller (4) and a battery (5) that are electrically connected to the drive motor (321) are fixed on the side wall of the mounting plate (2).

4. A wastewater sampling bottle for environmental monitoring according to claim 3, characterized in that: An annular rubber sheet (14) is attached and fixed to the side wall of the inlet (12) near the baffle (13). A pressure sensor (15) is embedded in the side wall of the annular rubber sheet (14) near the mounting plate (2). The pressure sensor (15) is electrically connected to the controller (4).

5. A wastewater sampling bottle for environmental monitoring according to claim 3, characterized in that: The outer wall of the cup body (1) is provided with a filter screen (16) to prevent debris from entering the water inlet (12).

6. A wastewater sampling bottle for environmental monitoring according to claim 5, characterized in that: A counterweight (7) is fixed to the bottom of the cup body (1).

7. A wastewater sampling bottle for environmental monitoring according to claim 6, characterized in that: An acoustic sensor (8) for measuring the distance between the inlet (12) and the riverbed is provided on one side wall of the cup body (1). A through hole (71) is provided on the counterweight (7) at the position corresponding to the acoustic sensor (8). The acoustic sensor (8) is electrically connected to the controller (4).

8. A wastewater sampling bottle for environmental monitoring according to claim 3, characterized in that: The cup body (1) is equipped with a liquid level sensor (9) for measuring the liquid level inside, and the liquid level sensor (9) is electrically connected to the controller (4).

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