Wastewater sample collecting device

Abstract

The invention belongs to the technical field of wastewater collection, and discloses a wastewater sample collection device which comprises a water collection barrel, a driving device and a connecting rod, the driving device is arranged at the top of the water collection barrel, and the driving device or the water collection barrel is connected with the connecting rod; a water sampling opening is formed in the bottom of the water sampling barrel and detachably connected with a blocking piece, and the driving device is connected with the blocking piece and used for driving the blocking piece to move upwards or downwards so as to block or open the water sampling opening; the blocking piece is connected with an opening piece, and the bottom of the water sampling barrel is rotationally connected with a plurality of grid plates in the circumferential direction; when the water collecting port is blocked by the blocking piece, the plurality of grid plates are gathered together to form an inverted cone shape, and the opening piece is in contact with the inner wall of the grid plates; when the plugging piece opens the water outlet, the plurality of grid plates are separated from one another under the action of the opening piece; the problem that the accuracy of subsequent detection data is affected due to the fact that an existing wastewater sampling device easily collects impurities and garbage together in the sampling process is solved.

Description

Technical Field

[0001] This invention relates to the field of drilling auxiliary device technology, specifically a wastewater sample collection device. Background Technology

[0002] Wastewater is a general term encompassing water discharged during residential activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other non-useful water such as initial rainwater runoff into drainage pipes and ditches. It typically refers to water that cannot be recycled after certain technical treatments, or water that, after being classified as Class I pollutant, cannot be purified to meet specific standards. Sewer wastewater, as a significant component of wastewater, has a complex and diverse composition. It not only contains organic matter, detergents, and microorganisms generated in daily life but may also contain harmful substances such as heavy metals and chemical agents discharged from industrial production. If this type of wastewater is discharged directly without effective treatment, it will cause serious pollution to the natural environment, including soil, groundwater, rivers, and lakes, disrupting the ecological balance and even threatening human health. Therefore, the scientific collection and accurate testing of sewer wastewater is the primary step in wastewater treatment and a crucial foundation for developing pollution control strategies and ensuring water environment safety.

[0003] Currently, there are two main common methods for wastewater sampling. One method involves personnel directly collecting samples by hand using a sampling bottle. This method is suitable for shallow wastewater or sampling points that are easily accessible, and is relatively simple and direct. The other method, when sampling deeper wastewater, typically uses a water pump to extract the water. The pump's suction force transports the deep wastewater to the sampling container, meeting the needs for collecting samples from different depths. However, these existing wastewater sampling methods often contain large pieces of impurities and debris. These impurities and debris are easily collected during the sampling process, which not only affects the accuracy of subsequent test data, leading to biased results, but also easily clogs the inlet, hindering the smooth progress of sampling. Summary of the Invention

[0004] The present invention aims to provide a wastewater sample collection device that solves the problem that existing wastewater sampling devices tend to collect impurities and garbage along with the sample during the sampling process, which affects the accuracy of subsequent test data.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wastewater sample collection device includes a collection tube, a driving device, and a connecting rod. The driving device is located at the top of the collection tube, and the driving device or the collection tube is connected to the connecting rod. A collection port is provided at the bottom of the collection tube, and a blocking component is detachably connected to the collection port. The driving end of the driving device is connected to the blocking component, and the driving device is used to drive the blocking component to move upward or downward along the axial direction of the collection tube to block or open the collection port. A spreading component is connected to the side of the blocking component away from the inner cavity of the collection tube. A plurality of grid plates are rotatably connected to the bottom of the collection tube along the circumferential direction. When the blocking component blocks the collection port, the plurality of grid plates converge to form an inverted cone shape, and the spreading component contacts the inner wall of the grid plate. When the blocking component opens the collection port, the plurality of grid plates separate under the action of the spreading component.

[0007] Furthermore, the driving device includes a waterproof housing, inside which is a partition. The partition is rotatably connected to a driving gear and a driven gear that mesh with each other. The partition is equipped with a first motor that drives the driving gear to rotate. The first motor is wirelessly connected to a controller for controlling the switching of the first motor. A push rod is connected to the middle of the driven gear via a spline drive. The push rod is connected to the plugging component. The push rod is provided with an external thread. An internally threaded sleeve is connected inside the waterproof housing. The push rod and the internally threaded sleeve are connected by threads.

[0008] Furthermore, the water inlet is shaped like a frustum, the plug is fitted to the water inlet, and the plug is provided with a sealing ring.

[0009] Furthermore, the expanding member includes a connecting seat connected to the blocking member, the connecting seat having a plurality of crossbars evenly spaced along the circumference, and the free end of each crossbar being connected to an annular ring.

[0010] Furthermore, the connecting rod is provided with a plurality of threaded holes evenly spaced along the axial direction, the driving device or water sampling cylinder is connected to a sliding sleeve, the sliding sleeve is slidably sleeved on the outer wall of the connecting rod, and the sliding sleeve is provided with bolts to restrict the sliding of the sliding sleeve.

[0011] Furthermore, the top of the connecting rod is provided with a lifting ring, and the lifting ring is detachably connected to a lifting rope, which is used to connect to a lifting device.

[0012] Furthermore, the lifting device includes a base, a rotatable drum is rotatably connected to the base, a second motor is provided on the base to drive the drum to rotate, and the end of the lifting rope away from the lifting ring is connected to the drum; a counterweight is provided at the bottom of the connecting rod.

[0013] The principles and beneficial effects of the technical solution are as follows:

[0014] 1. This invention provides a wastewater sample collection device, comprising a sampling tube, a driving device, and a connecting rod. The sampling tube is used to collect wastewater samples. The sampling tube or the driving device is connected to the connecting rod so that on-site personnel can place the sampling tube into the wastewater for sampling, avoiding pollution of the personnel by the wastewater. A sampling port is provided at the bottom of the sampling tube, and a blocking component is detachably connected to the sampling port. The driving device is connected to the blocking component and is used to drive the blocking component to move upward or downward along the axial direction of the sampling tube to block or open the sampling port driving device or the sampling tube. A supporting component is connected to the side of the blocking component away from the inner cavity of the sampling tube. Several mesh grids are rotatably connected to the bottom of the sampling tube along the circumferential direction. The mesh size of the mesh grids can be selected according to requirements. The system drives the grid plates to rotate outwards, clearing away surrounding debris and preventing it from entering the water sampling cylinder. Initially, the blocking component blocks the water inlet, and several grid plates converge to form an inverted cone shape, with the expanding component contacting the inner wall of the grid plates. After water sampling, the drive assembly resets the blocking component, closing the water inlet and preventing water sample outflow. When the water sampling cylinder reaches a designated position, the drive assembly moves the blocking component downwards, separating it from the water inlet and opening it. Simultaneously, the expanding component moves downwards with the blocking component, driving several grid plates to rotate outwards, clearing away surrounding debris and preventing it from entering the water sampling cylinder or blocking the inlet, thus improving the accuracy of subsequent detection data and increasing water sampling efficiency. Furthermore, the inverted cone shape of the grid plates in the initial state reduces resistance when wastewater enters the water sampling cylinder, further increasing sampling efficiency.

[0015] 2. The wastewater sample collection device provided by this invention includes a driving device comprising a waterproof housing with a partition inside. The partition is rotatably connected to a meshing drive gear and a driven gear. A first motor drives the drive gear to rotate, and the drive gear drives the driven gear to rotate. The motor is wirelessly connected to a controller for controlling the motor's on / off state, allowing the collector to control the motor's opening and closing. A push rod is connected to the middle of the driven gear via a spline drive. The push rod is connected to a plugging component, allowing it to move axially while rotating. The push rod has an external thread, and an internal thread is connected inside the waterproof housing. The threaded sleeve, push rod, and internal threaded sleeve are connected by threads. The first motor drives the drive gear to rotate, which in turn drives the driven gear to rotate. Under the combined action of the drive gear, spline, and internal threaded sleeve, the driven gear rotates while moving axially along the push rod, thereby causing the blocking part to move downwards in a rotating manner to open the water intake port. This design is convenient to operate, reduces opening resistance, and increases stability. Furthermore, during and after water intake, the position of the blocking part can be locked by the threads to facilitate smooth water intake and prevent water sample leakage during transfer, thus increasing efficiency.

[0016] 3. The wastewater sample collection device provided by this invention has a frustum-shaped water inlet. A plug is fitted into the water inlet, and the plug is equipped with a sealing ring. The frustum shape of the water inlet and the plug allows the plug to be partially pushed out of the water inlet, enabling adjustment of the gap between the plug and the water inlet according to actual conditions, further preventing debris from entering the water collection tube and increasing the accuracy of subsequent test data. Furthermore, it reduces the resistance of the plug opening or closing the water inlet, further increasing the stability of the device. The expansion member consists of a connecting seat, several crossbars, and an annular ring, which further prevents filamentous or strip-shaped debris from entering the water collection tube, further increasing the accuracy of subsequent test data.

[0017] 4. The wastewater sample collection device provided by the present invention has a lifting ring at the top of the connecting rod, and a lifting rope is detachably connected to the lifting ring. The lifting rope is used to connect to the lifting device. For some locations that cannot be accessed through the sewer, the sampling tube can be lowered into the small sewer opening using the lifting device, which is convenient to operate. Specifically, the lifting device includes a base, and a winding drum is rotatably connected to the base. The base is equipped with a second motor that drives the winding drum to rotate. The end of the lifting rope away from the lifting ring is connected to the winding drum. A counterweight is provided at the bottom of the connecting rod. The second motor drives the winding drum to rotate, and the winding drum realizes the winding and unwinding of the lifting rope.

[0018] 5. The wastewater sample collection device provided by this invention addresses the issue that, for wastewater at certain depths, the elements and pollutants contained in wastewater at different depths may vary. To obtain comprehensive and accurate wastewater treatment data, multiple samples need to be taken from wastewater at different depths. Therefore, the connecting rod is provided with several threaded holes at even intervals, and the driving device or water sampling tube is connected to a sliding sleeve. The sliding sleeve is slidably fitted onto the outside of the connecting rod, and the sliding sleeve is provided with bolts to limit the sliding of the sliding sleeve, so as to facilitate the installation of multiple water sampling tubes and adjust the interval between multiple water sampling tubes. It can collect water samples at different depths simultaneously, resulting in high work efficiency and saving time and manpower. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a wastewater sample collection device according to the present invention;

[0020] Figure 2 This is a partial front view of a wastewater sample collection device according to the present invention;

[0021] Figure 3 for Figure 2 Sectional view of AA;

[0022] Figure 4 for Figure 2 Sectional view of BB;

[0023] Figure 5 This is a schematic diagram of the lifting device of a wastewater sample collection device according to the present invention.

[0024] The names of the corresponding labels in the attached diagram are:

[0025] 1. Sampling tube; 2. Water inlet; 3. Mesh grid plate; 4. Spring hinge; 5. Blocking component; 6. Sealing ring; 7. Connecting seat; 8. Crossbar; 9. Annular ring; 10. Waterproof box; 11. Partition plate; 12. Drive gear; 13. First motor; 14. Driven gear; 15. Top rod; 16. Spline; 17. Internal threaded sleeve; 18. Connecting rod; 19. Threaded hole; 20. Sliding sleeve; 21. Bolt; 22. Lifting ring; 23. Base; 24. Winding drum; 25. Second motor. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0027] like Figures 1 to 5 As shown, a wastewater sample collection device includes a water collection cylinder 1, a driving device, and a connecting rod 18. The water collection cylinder 1 is a cylindrical body with a water collection inner cavity. The driving device is located at the top of the water collection cylinder 1. The driving device or the water collection cylinder 1 is connected to the connecting rod 18. In this embodiment, the connecting rod 18 has a plurality of threaded holes 19 evenly spaced along the axial direction. The driving device is connected to a sliding sleeve 20, which is slidably sleeved on the outer wall of the connecting rod 18. The sliding sleeve 20 is provided with bolts 21 to restrict the sliding of the sliding sleeve 20. A water collection port 2 is opened at the bottom of the water collection cylinder 1. A plug 5 is detachably connected to the water collection port 2. The water collection port 2 is frustoconical in shape. The plug 5 is configured to cooperate with the water collection port 2 and is provided with a sealing ring 6. The driving device is used for... The drive blocking component 5 moves upward or downward along the axial direction of the water intake cylinder 1 to block or open the water intake port 2. In this embodiment, the drive device includes a waterproof housing 10, and a partition 11 is provided inside the waterproof housing 10. The partition 11 is rotatably connected to a driving gear 12 and a driven gear 14 that mesh with each other through bearings. The partition 11 is provided with a first motor 13 that drives the driving gear 12 to rotate. The first motor 13 is wirelessly connected to a controller for controlling the motor switch. A push rod 15 is driven to the middle of the driven gear 14 through a spline 16. The push rod 15 is connected to the blocking component 5. The push rod 15 is provided with an external thread, and an internal threaded sleeve 17 is connected inside the waterproof housing 10. The push rod 15 and the internal threaded sleeve 17 are connected by threads.

[0028] A support member is connected to the side of the blocking component 5 away from the inner cavity of the water sampling cylinder 1. In this embodiment, the support member includes a connecting seat 7 connected to the blocking component 5. Several crossbars 8 are evenly spaced along the circumference of the connecting seat 7, and an annular ring 9 is connected to the free end of the crossbars 8. Several grid plates 3 are rotatably connected to the bottom of the water sampling cylinder 1 along the circumference via a spring hinge 4. When the blocking component 5 blocks the water intake 2, the several grid plates 3 converge with each other under the elastic force of the spring hinge 4, forming an inverted cone shape, and the annular ring 9 contacts the inner wall of the grid plate 3. When the blocking component 5 opens the water intake 2, the several grid plates 3 separate with the action of the annular ring 9. After sampling is completed, the blocking component 5 resets, the annular ring 9 moves upward with the blocking component 5, and the several grid plates 3 reset under the spring return force of the spring hinge 4.

[0029] In some embodiments, the top of the connecting rod 18 is provided with a lifting ring 22, and a lifting rope is detachably connected to the lifting ring 22. The lifting rope is used to connect to the lifting device. Specifically, the lifting device includes a base 23, and a winding drum 24 is rotatably connected to the base 23 through a bearing. The base 23 is provided with a second motor 25 that drives the winding drum 24 to rotate. The end of the lifting rope away from the lifting ring 22 is connected to the winding drum 24. A counterweight (not shown in the figure) is detachably connected to the bottom of the connecting rod 18.

[0030] The specific implementation process is as follows:

[0031] When using this device, select the number of water sampling tubes 1 and the spacing between them as needed. Depending on the condition of the sewer, choose whether or not to use a lifting device. When the sampling tube 1 reaches the specified water depth, the controller starts the first motor 13. Under the action of the driving gear 12, driven gear 14, spline 16, internal threaded sleeve 17 and push rod 15, the blocking part 5 rotates and moves downward to open the water sampling port 2. The mesh plate 3 pushes away the surrounding debris. After the water sampling is completed, control the second motor 13 to reverse, and the blocking part 5 moves upward to reset, storing the water sample in the sampling tube 1 and transporting it to the designated location for experimental testing.

[0032] The present invention provides a wastewater sample collection device, in which a sampling tube 1 is used to collect wastewater samples; a connecting rod 18 is provided to facilitate on-site personnel to place the sampling tube 1 into the wastewater for sampling, avoiding pollution of the personnel by the wastewater; a driving device is used to drive the blocking component 5 to move upward or downward along the axial direction of the sampling tube 1 to block or open the sampling port 2 driving device or the sampling tube 1; a spreading component is used to drive the mesh grid plate 3 to rotate outward to push aside surrounding debris, preventing debris from entering the interior of the sampling tube 1, improving the accuracy of subsequent detection data, and increasing water collection efficiency. In addition, the inverted conical mesh grid plate 3 in the initial state can also reduce the resistance when the sampling tube 1 enters the wastewater, further increasing the water collection efficiency.

[0033] The first motor 13 drives the drive gear 12 to rotate, and the drive gear 12 drives the driven gear 14 to rotate. Under the combined action of the drive gear 12, spline 16 and internal threaded sleeve 17, the driven gear 14 rotates and moves along the axial direction of the push rod 15, so as to drive the blocking part 5 to move downward in a rotating manner, opening the water intake port 2. This is convenient to operate, reduces the opening resistance, and increases stability. In addition, during and after water intake, the position of the blocking part 5 can be locked by the thread, which promotes the smooth progress of water intake and also prevents water sample from flowing out during transportation, thus increasing efficiency.

[0034] The water inlet 2 is shaped like a frustum. The plug 5 is fitted into the water inlet 2 and has a sealing ring 6. The frustum shape of the water inlet 2 and the plug 5 allows for partial removal of the plug 5 from the water inlet 2, enabling adjustment of the gap between them to further prevent debris from entering the water sampling tube 1 and increase the accuracy of subsequent testing data. It also reduces the resistance of the plug 5 in opening or closing the water inlet 2, further increasing the stability of the device. The expansion component, consisting of a connecting seat 7, several crossbars 8, and an annular ring 9, further prevents filamentous or strip-shaped debris from entering the water sampling tube 1, further increasing the accuracy of subsequent testing data. The drive device, slidably sleeved on the outside of the connecting rod 18 via a sliding sleeve 20, can adjust the interval between multiple water sampling tubes 1, allowing simultaneous collection of water samples at different depths, resulting in high efficiency and saving time and manpower.

[0035] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A wastewater sample collection device, characterized by, The utility model provides a water sampling device, including water sampling cylinder (1), drive arrangement and connecting rod (18), drive arrangement is located water sampling cylinder (1) top, drive arrangement or water sampling cylinder (1) is connected with connecting rod (18), water sampling cylinder (1) bottom is provided with water sampling mouth (2), water sampling mouth (2) is detachably connected with the stop piece (5), and the drive end of drive arrangement is connected with the stop piece (5), and the drive arrangement is used for driving the stop piece (5) along the axial upward or downward of water sampling cylinder (1) and moves to stop or open water sampling mouth (2), and the side of the stop piece (5) is connected with the strutting apart piece away from the inner chamber of water sampling cylinder (1), and the bottom of water sampling cylinder (1) is rotatably connected with a plurality of grid grating plates (3) along the circumference, when the stop piece (5) stops water sampling mouth (2), a plurality of grid grating plates (3) gather each other, and the strutting apart piece is in contact with the inner wall of grid grating plate (3), when the stop piece (5) opens water sampling mouth (2), a plurality of grid grating plates (3) are separated from each other under the action of the strutting apart piece.

2. A wastewater sample collection device according to claim 1, wherein, The drive arrangement includes a waterproof box (10), the waterproof box (10) is provided with a partition plate (11), the partition plate (11) is rotatably connected with a driving gear (12) and a driven gear (14) which are engaged with each other, the partition plate (11) is provided with a first motor (13) for driving the driving gear (12) to rotate, the first motor (13) is wirelessly connected with a controller for controlling the switch of the first motor (13); the middle part of the driven gear (14) is drivingly connected with a jack (15) through a spline (16), the jack (15) is connected with the stop piece (5); and the jack (15) is provided with external threads, the waterproof box (10) is connected with an internal threaded sleeve (17), and the jack (15) and the internal threaded sleeve (17) are connected through threads.

3. A wastewater sample collection device according to claim 1, wherein, The shape of the water sampling mouth (2) is a circular truncated cone, the stop piece (5) is arranged in cooperation with the water sampling mouth (2), and the stop piece (5) is provided with a sealing ring (6).

4. The wastewater sample collection device of claim 1, wherein, The strutting apart piece includes a connecting seat (7) connected with the stop piece (5), a plurality of horizontal rods (8) are uniformly and spacedly connected along the circumference of the connecting seat (7), and the free ends of the horizontal rods (8) are connected with annular rings (9).

5. The wastewater sample collection device of claim 1, wherein, The connecting rod (18) is uniformly and spacedly provided with a plurality of threaded holes (19) along the axial direction, the drive arrangement or the water sampling cylinder (1) is connected with a sliding sleeve (20), the sliding sleeve (20) is slidingly sleeved on the outer wall of the connecting rod (18), and the sliding sleeve (20) is provided with a bolt (21) for limiting the sliding of the sliding sleeve (20).

6. The wastewater sample collection device of claim 1, wherein, The top of the connecting rod (18) is provided with an eye ring (22), the eye ring (22) is detachably connected with a lifting rope, and the lifting rope is used for connecting a hoisting device.

7. A wastewater sample collection device according to claim 6, wherein, The hoisting device comprises a base (23), a winding drum (24) is rotationally connected to the base (23), the base (23) is provided with a second motor (25) for driving the winding drum (24) to rotate, and one end of the hoisting rope away from the lifting ring (22) is connected with the winding drum (24); and the connecting rod (18) is provided with a counterweight at the bottom.

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