A semi-buried mud pool water sampling device

Abstract

A water sampling device for a semi-buried sludge pond is disclosed. The safety door of the semi-buried sludge pond is equipped with a sampling port. The device comprises a carrier, a handheld lithium-ion water pump, a first sampling hose, and a second sampler. The handheld lithium-ion water pump is placed on the carrier and connected to the first sampling hose. The second sampler includes a cylinder, a water intake cap, and a first connecting rope. This semi-buried sludge pond water sampling device, by pre-drilling a small hole at the safety door, utilizes a handheld lithium-ion water pump, a first sampling hose, and a second sampler. The first sampling hose is lowered to automatically extract the supernatant; the second sampler uses a conical counterweight to break through the sludge layer to extract the water sample, and the sampling bucket retrieves the sludge sample. Combined with the hand-pulled cart-type carrier, this allows for convenient sampling by a single worker in a semi-buried sludge pond without visibility or opening the safety door.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sampling technology, specifically to a semi-buried mud-water pool water sampling device. Background Technology

[0002] A semi-buried wastewater treatment plant is a type of wastewater treatment facility where part of the structure is buried underground and part is exposed above ground, offering the dual advantages of saving land and reducing environmental impact. The water tanks in a semi-buried wastewater treatment plant are built underground, and maintenance windows are typically provided at the installation locations of large equipment such as flow promoters and pumps. These maintenance windows are sealed by openable and closable safety doors. Therefore, when taking water samples from a semi-buried water tank, the safety door at the maintenance opening must be opened to lower the sampling container for sampling. Furthermore, with the safety door open, workers must adhere to safety regulations, such as wearing safety ropes and working in pairs, making the sampling process for semi-buried water tanks quite cumbersome.

[0003] Meanwhile, the sludge tank of the semi-buried sewage treatment plant adopts an aerobic digestion process, in which microorganisms treat the sludge. The sludge tank contains a supernatant layer, sludge layers of different concentrations, and a sedimentation layer. When conducting water quality testing in the plant area, it is often necessary to sample and test water at different depths in the sludge tank. Layered water sampling can more comprehensively reflect the microbial status in the sludge tank.

[0004] However, the obstruction of the sludge layer, coupled with the obstruction of the view in the semi-buried pool, makes it difficult for conventional samplers to accurately obtain water samples at the required depth.

[0005] Therefore, it is necessary to design a comprehensive sampling device for semi-buried mud and water tanks to adapt to the above conditions and facilitate water sampling by staff. Utility Model Content

[0006] To address the shortcomings of the aforementioned technologies, this invention provides a semi-buried mud and water pool water sampling device.

[0007] The technical solution of this utility model is as follows: A water sampling device for a semi-buried mud and water tank, wherein the safety door of the semi-buried mud and water tank is provided with a sampling port, and the water sampling device includes a carrier, a handheld lithium-ion water pump, a first sampling hose, and a second sampler. The handheld lithium-ion water pump is placed on the carrier and is connected to the first sampling hose. The second sampler includes a cylinder, a water intake end cap, and a first connecting rope. One end of the cylinder is fixedly connected to the first connecting rope, and the other end is provided with a water inlet and a cavity. The water intake end cap and the water inlet are respectively provided with mutually compatible external threads and internal threads. The water intake end cap includes an inner end face, an outer end face, and a central water passage hole. A one-way valve mechanism is provided on the inner end face. The one-way valve mechanism includes a bracket, a valve plate, a guide rod, and an elastic reset component. The bracket includes a platform and several support legs. The support legs are arranged around the central water passage and support the platform. A travel channel is provided between the platform and the inner end face. The platform has a guide hole coaxial with the central water passage. The valve plate has a diameter larger than the central water passage and is fixed coaxially with the guide rod. The guide rod is inserted into the guide hole for axial sliding engagement. The elastic reset component is sleeved on the guide rod and located between the valve plate and the platform, driving the valve plate to fit against the inner end face and close the central water passage. A counterweight is provided on the outer end face.

[0008] Further features of this invention: The carrier includes a main frame, a lifting handle, a water sample placement rack, and a water pump placement rack. The bottom surface of the main frame is provided with rollers on the side near the lifting handle and casters on the side away from the lifting handle. The main frame is provided with a hook for mounting a second sampler.

[0009] A further feature of this invention is that the device also includes a sampling bucket, which is equipped with a second connecting rope and is attached to the main frame.

[0010] 1. Further features of this utility model: The device also includes a long-handled sampling spoon.

[0011] A further feature of this invention is that a threaded tube is radially arranged on the outer circumferential surface of the sampling bucket. The device also includes a telescopic rod, the end of which has an external thread adapted to the internal thread of the threaded tube. The telescopic rod is threadedly connected to the threaded tube to form a long-handled sampling spoon. The long-handled sampling spoon is used to sample turbulent water flows. Utilizing the telescopic rod assembly design, the sampling bucket can be used for two purposes and is easy to disassemble and store.

[0012] A further feature of this invention is that the counterweight is a conical counterweight surrounding the central water passage hole, and the conical counterweight has a water passage gap connecting to the central water passage hole.

[0013] A further feature of this invention is that a plurality of partition plates are spaced apart along the axial direction inside the cavity of the cylinder, and the partition plates are sealed to the cavity to form a plurality of partitioned chambers. A plurality of track grooves corresponding to the number of chambers are arranged along the axial direction on the outer circumferential surface of the cylinder. Water inlet holes are provided in the track grooves and respectively penetrate to the corresponding chambers. A one-way valve mechanism is provided at the water inlet hole of each chamber.

[0014] The second sampler also includes a threaded end cap, a hollow flexible tube, several sets of operating mechanisms and baffle sliders corresponding to the number of track slots. The several baffle sliders are respectively inserted into each track slot for axial sliding engagement. The several baffle sliders include a driving end facing the water intake end cap and a locking end on the other side. The driving end is provided with a tension spring fixedly connected to the track slot. The baffle sliders correspond to the tension spring stroke and the position of the water inlet. An opening and closing hole is provided on the side of the water inlet away from the tension spring. The locking end is provided with a pin hole along the radial direction of the cylinder.

[0015] The end face of the cylinder corresponding to the locking end has a shaft tube at the center. Between the outer side of the shaft tube and the baffle slider, several pin seats are arranged around the center corresponding to the pin hole paths. Each pin seat has a limiting slide hole in the same direction as the pin hole. The shaft tube has an external thread on one side of the tube opening and is adapted to the threaded end cap. The bottom side of the shaft tube away from the tube opening has a rope hole coaxial with the limiting slide hole. Each of the several sets of operating mechanisms includes a traction rope, a pin, and a pulley. The pulley is located inside the shaft tube and is aligned with the limiting slide hole and the rope hole. One end of the pin is inserted into the pin hole to limit the position of the baffle slider and store energy in the tension spring. The other end of the pin is inserted into the limiting slide hole and connected to the traction rope.

[0016] The threaded end cap is fixedly connected to the hollow hose and has a through hole that connects the hollow hose and the shaft tube. The hollow hose has several rope outlet holes at different length positions. The traction ropes of the several sets of operating mechanisms pass through the limiting sliding hole, the rope passage hole, the through hole, and the hollow hose, and exit from different rope outlet holes respectively. The end of the rope that passes through is provided with a handle with a diameter larger than the rope outlet hole. The handle pulls the traction rope, and the pulley pulls the pin out of the pin hole, thereby driving the tension spring to move the opening and closing hole to coincide with the position of the water inlet hole.

[0017] A further feature of this invention is that the partition plate has a lifting lug on the side facing the water intake end cap, and a sealing ring is provided on the outer circumferential surface of the partition plate, which is coaxially inserted into the cavity to provide an axially adjustable movable seal.

[0018] The beneficial effects of this utility model are as follows: The semi-buried mud and water pool water sampling device designed in this application, by pre-reserving a small hole at the safety door, and in conjunction with the designed handheld lithium-ion water pump, first sampling hose, and second sampler, automatically extracts the supernatant by lowering the first sampling hose; the second sampler breaks through the sludge layer to extract water sample by using a conical counterweight block, and the sampling bucket retrieves the sludge sample. With the help of a hand-pulled cart, only one worker is needed to conveniently complete the sampling in the semi-buried mud and water pool without a line of sight or opening the safety door.

[0019] In the further design of the second sampler, the sinking depth of the second sampler is identified by the traction rope handle at the preset interval of the hollow hose. Then, the traction rope is pulled to open the water inlet of different chambers and collect water samples at different depths.

[0020] Under the pressure difference between air and external water pressure, the valve plate drives the guide rod to retract inward, allowing the water sample to enter the cavity. Once the pressure difference inside and outside the cavity is balanced, the elastic reset element (spring) restores its deformation force. Combined with the gravity of the water flow in the cavity when the sampler is pulled up, the valve plate is driven to move in the closing direction, thereby blocking the water inlet and completing the sealing. Attached Figure Description

[0021] Figure 1 The structure of this utility model embodiment Figure 1 ;

[0022] Figure 2 The structure of this utility model embodiment Figure 2 ;

[0023] Figure 3 The structure of this utility model embodiment Figure 3 ;

[0024] Figure 4 The structure of this utility model embodiment Figure 4 ;

[0025] Figure 5 The structure of this utility model embodiment Figure 5 ;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 for Figure 5 Enlarged view at point B in the middle;

[0028] Figure 8 The structure of this utility model embodiment Figure 6 .

[0029] Among them, 1-carrier, 11-handheld lithium-ion water pump, 12-first sampling hose, 13-sampling bucket, 131-threaded pipe section, 14-long-handled sampling spoon, 141-telescopic rod, 2-second sampler, 21-cylinder body, 22-water intake end cap, 211-water inlet, 212-track groove, 213-water inlet hole, 214-shaft tube section, 215-pin seat, 2151-limiting sliding hole, 2141-rope passage hole, 221 -Central water passage, 222-Counterweight, 23-Partition plate, 231-Lifting lug, 24-Threaded end cap, 25-Hollow hose, 26-Baffle sliding hole, 261-Tension spring, 262-Opening and closing hole, 263-Pin hole, 231-Cavity, 3-One-way valve mechanism, 31-Bracket, 32-Valve plate, 33-Guide rod, 34-Elastic reset component, 41-Traction rope, 411-Handle component, 42-Pin, 43-Pulley.

[0030] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0031] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0032] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-7 As shown,

[0033] A water sampling device for a semi-buried mud and water tank is disclosed. The safety door of the semi-buried mud and water tank is equipped with a sampling port. The water sampling device includes a carrier 1, a handheld lithium-ion water pump 11, a first sampling hose 12, and a second sampler 2. The handheld lithium-ion water pump 11 is placed on the carrier 1 and is connected to the first sampling hose 12. The second sampler 2 includes a cylinder 21, a water intake cap 22, and a first connecting rope. One end of the cylinder 21 is fixedly connected to the first connecting rope, and the other end is provided with a water inlet 211 and a cavity. The water intake cap 22 and the water inlet 211 are respectively provided with mutually compatible external threads and internal threads. The water intake cap 22 includes an inner end face, an outer end face, and a central water passage hole 221. The inner end face is provided with a one-way valve mechanism 3. Component 3 includes a bracket 31, a valve plate 32, a guide rod 33, and an elastic reset component 34. The valve plate 32 is made of rubber and has a sealing cover. The bracket 31 includes a platform and several supporting legs. The supporting legs are arranged around the central water passage 221 and support the platform. A travel channel is provided between the platform and the inner end face. The platform has a guide hole 311 coaxial with the central water passage 221. The valve plate 32 has a diameter larger than the central water passage 221 and is coaxially fixed with the guide rod 33. The guide rod 33 is inserted into the guide hole 311 for axial sliding engagement. The elastic reset component 34 is sleeved on the guide rod 33 and is located between the valve plate 32 and the platform, driving the valve plate 32 to fit against the inner end face and seal the central water passage 221. A counterweight 222 is provided on the outer end face.

[0034] The carrier 1 includes a main frame, a lifting handle, a water sample placement rack, and a water pump placement rack. The bottom surface of the main frame is provided with rollers on the side near the lifting handle and casters on the side away from the lifting handle. The main frame is provided with a hook for hanging the second sampler 2.

[0035] The device also includes a sampling bucket 13, which is equipped with a second connecting rope and is attached to the main frame.

[0036] The device also includes a long-handled sampling spoon 14.

[0037] The sampling bucket 13 has a threaded tube 131 arranged radially on its outer circumferential surface. The device also includes a telescopic rod 141. The end of the telescopic rod 141 is provided with an external thread that matches the internal thread of the threaded tube 131. The telescopic rod 141 is threadedly connected to the threaded tube 131 to form a long-handled sampling spoon.

[0038] The long-handled sampling spoon is used to collect samples from turbulent water. The sampling container, with its telescopic rod assembly design, can be used for two purposes and is easy to disassemble and store.

[0039] The counterweight 222 is a conical counterweight 222 surrounding the central water passage 221, and the conical counterweight 222 is provided with a water passage gap that connects to the central water passage 221.

[0040] The cavity of the cylinder 21 is provided with a plurality of partition plates 23 spaced along the axial direction. The partition plates 23 are sealed to the cavity to form a plurality of partitioned chambers 231. The outer circumferential surface of the cylinder 21 is provided with a plurality of track grooves 212 corresponding to the number of chambers 231. The track grooves 212 are provided with water inlet holes 213 that penetrate to the corresponding chambers 231. Each chamber 231 is provided with a one-way valve mechanism 3 at the water inlet hole 213.

[0041] The second sampler 2 also includes a threaded end cap 24, a hollow flexible tube 25, several sets of operating mechanisms corresponding to the number of track grooves 212, and baffle sliders 26. The several baffle sliders 26 are respectively inserted into each track groove 212 for axial sliding engagement. Each baffle slider 26 includes a driving end facing the water intake end cap 22 and a locking end on the other side. The driving end is provided with a tension spring 261 fixedly connected to the track groove 212. The baffle sliders 26 are corresponding to the tension springs 261. The spring 261 has a stroke and the water inlet 213 has a closing hole 262 on the side of the water inlet 213 away from the spring 261. Depending on the spring's stroke length, if it is pulled 5 cm, when the baffle slider is locked, a sealing ring is placed around the water inlet 213 at a point 5 cm from the closing hole 262, on the end face of the baffle slider that contacts the water inlet 213. This prevents water from entering when the baffle is locked; water only enters the chamber when the closing hole coincides with the water inlet. A pin hole 263 is provided radially along the cylinder 21 at the locking end.

[0042] The end face of the cylinder 21 corresponding to the locking end has a shaft tube 214 at its center. Between the outer side of the shaft tube 214 and the baffle slider 26, several pin seats 215 are arranged around the center, corresponding to the paths of each pin hole 263. Each pin seat has a limiting sliding hole 2151 in the same direction as the pin hole 263. The shaft tube 214 has an external thread on its opening side that matches the threaded end cap 24. The bottom surface of the shaft tube 214 away from the opening has a limiting sliding hole 2151. The sliding hole 2151 is coaxial with the rope passage hole 2141. Each of the several sets of operating mechanisms includes a traction rope 41, a pin 42, and a pulley 43. The pulley 43 is located inside the shaft tube 214 and is aligned with the limiting sliding hole 2151 and the rope passage hole 2141. One end of the pin 42 is inserted into the pin hole 263 to limit the position of the baffle slider 26 and allow the tension spring 261 to store energy. The other end of the pin 42 is inserted into the limiting sliding hole 2151 and is connected to the traction rope 41.

[0043] The threaded end cap 24 is fixedly connected to the hollow hose 25 and has a through hole that connects the hollow hose 25 and the shaft tube 214. The hollow hose 25 has several rope outlet holes 251 at different length positions. The traction ropes 41 of the several sets of operating mechanisms pass through the limiting sliding hole 2151, the rope passage hole 2141, the through hole, and the hollow hose 25, and respectively pass out from different rope outlet holes 251. The end of the rope that passes out is provided with a handle 411 with a diameter larger than the rope outlet hole 251. The handle 411 pulls the traction rope 41, and the pulley 43 pulls the pin 42 out of the pin hole 263, thereby the tension spring 261 drives the opening and closing hole 262 to move to the position of the water inlet hole 213 to coincide.

[0044] The partition 23 is provided with a lifting lug 231 on the side facing the water intake end cover 22. The outer circumferential surface of the partition 23 is provided with a sealing ring 232, which is coaxially inserted into the cavity to provide an axially adjustable movable seal.

[0045] The semi-buried mud and water pool water sampling device designed in this application, by pre-reserving a small hole at the safety door, and in conjunction with the designed handheld lithium-ion water pump 11, first sampling hose 12, and second sampler 2, automatically extracts the supernatant by lowering the first sampling hose 12; the second sampler 2 breaks through the sludge layer to extract water sample through the conical counterweight 222, and the sampling bucket scoops up the sludge sample, and with the hand-pulled cart-type carrier 1, only one worker is needed to conveniently complete the sampling in the semi-buried mud and water pool without a line of sight or opening the safety door.

[0046] In a further design of the second sampler 2, the sinking depth of the second sampler 2 is identified by the traction rope 41 handle 411 at a preset interval of the hollow hose 25, and then the traction rope 41 is pulled to open the water inlet 213 of different chambers 231 to collect water samples at different depths.

[0047] Under the pressure difference between air and external water pressure, the valve plate 32 drives the guide rod 33 to retract inward, and the water sample enters the cavity. Once the pressure difference inside and outside the cavity is balanced, the elastic reset element 34 (spring) restores its deformation force. Combined with the gravity of the water flow in the cavity when the sampler is lifted, the valve plate 32 is driven to move in the closing direction, thereby blocking the water inlet 213 and completing the sealing.

[0048] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A semi-buried mud pit water sampling device, wherein a safety door of the semi-buried mud pit is provided with a sampling port, characterized in that: The water sampling device includes a carrier, a handheld lithium-ion water pump, a first sampling hose, and a second sampler. The handheld lithium-ion water pump is placed on the carrier and connected to the first sampling hose. The second sampler includes a cylinder, a water intake cap, and a first connecting rope. One end of the cylinder is fixedly connected to the first connecting rope, and the other end is provided with a water inlet and a cavity. The water intake cap and the water inlet are respectively provided with mutually compatible external and internal threads. The water intake cap includes an inner end face, an outer end face, and a central water passage hole. The inner end face is provided with a one-way valve mechanism. The one-way valve mechanism includes... The system comprises a bracket, a valve plate, a guide rod, and an elastic reset component. The bracket includes a platform and several supporting legs, which surround a central water passage and support the platform. A travel channel is provided between the platform and its inner end face. The platform has a guide hole coaxial with the central water passage. The valve plate has a diameter larger than the central water passage and is fixed coaxially with the guide rod. The guide rod is inserted into the guide hole for axial sliding engagement. The elastic reset component is sleeved on the guide rod and located between the valve plate and the platform, driving the valve plate to conform to the inner end face and close the central water passage. A counterweight is provided on the outer end face.

2. A semi-submersible mud pit water sampling device according to claim 1, wherein: The carrier includes a main frame, a lifting handle, a water sample placement rack, and a water pump placement rack. The bottom surface of the main frame is provided with rollers on the side near the lifting handle and casters on the side away from the lifting handle. The main frame is provided with a hook for attaching a second sampler.

3. A semi-submersible mud pit water sampling device according to claim 2, wherein: The device also includes a sampling bucket, which is equipped with a second connecting rope and is attached to the main frame.

4. The semi-buried mud-water pool water sampling device according to claim 3, characterized in that: The device also includes a long-handled sampling spoon.

5. A semi-submersible mud pit water sampling device according to claim 4, wherein: The sampling bucket has a threaded tube section arranged radially on its outer circumferential surface. The device also includes a telescopic rod with an external thread at its end that matches the internal thread of the threaded tube section. The telescopic rod is threadedly connected to the threaded tube section to form a long-handled sampling spoon.

6. A semi-submersible mud pit water sampling device according to claim 1, wherein: The counterweight is a conical counterweight surrounding the central water passage, and the conical counterweight has a water passage gap that connects to the central water passage.

7. A semi-submersible mud pit water sampling device according to any one of claims 1 to 6, wherein: The cylinder has several partitions spaced axially within its cavity. These partitions are sealed to the cavity to form several partitioned chambers. The outer circumferential surface of the cylinder has several track grooves corresponding to the number of chambers. Each track groove has a water inlet hole that penetrates to the corresponding chamber. Each chamber has a one-way valve mechanism at the water inlet hole. The second sampler also includes a threaded end cap, a hollow flexible tube, several sets of operating mechanisms and baffle sliders corresponding to the number of track slots. The baffle sliders are respectively inserted into each track slot for axial sliding engagement. Each baffle slider includes a driving end facing the water intake end cap and a locking end on the other side. The driving end is provided with a tension spring fixedly connected to the track slot. The baffle sliders correspond to the tension spring stroke and the position of the water inlet. An opening and closing hole is provided on the side of the water inlet away from the tension spring. The locking end is provided with a pin hole along the radial direction of the cylinder. The end face of the cylinder corresponding to the locking end has a shaft tube section at its center. Between the outer side of this shaft tube section and the baffle slider, several pin seats are arranged around the center, corresponding to the paths of each pin hole. Each pin seat has a limiting sliding hole in the same direction as the pin hole. The shaft tube section has an external thread on one side of its opening, which is adapted to a threaded end cap. The bottom surface of the shaft tube section away from the opening has a rope passage hole coaxial with the limiting sliding hole. Each of the aforementioned operating mechanisms includes a traction rope, a pin, and a pulley. The pulley is located inside the shaft tube and is aligned with the limiting slide hole and the rope passage hole. One end of the pin is inserted into the pin hole to limit the position of the baffle slider and allow the tension spring to store energy. The other end of the pin is inserted into the limiting slide hole and connected to the traction rope. The threaded end cap is fixedly connected to the hollow hose and has a through hole that connects the hollow hose and the shaft tube. The hollow hose has several rope outlet holes at different length positions. The traction ropes of the several sets of operating mechanisms pass through the limiting sliding hole, the rope passage hole, the through hole, and the hollow hose, and exit from different rope outlet holes respectively. The end of the rope that passes through is provided with a handle with a diameter larger than the rope outlet hole. The handle pulls the traction rope, and the pulley pulls the pin out of the pin hole, thereby driving the tension spring to move the opening and closing hole to coincide with the position of the water inlet hole.

8. A semi-submersible mud pit water sampling device according to claim 7, wherein: The partition is provided with a lifting lug on the side facing the water intake end cover. The outer circumferential surface of the partition is provided with a sealing ring, which is coaxially inserted into the cavity to provide a movable seal that can be adjusted in axial position.

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