Sampling device suitable for water quality detection in constructed wetland urban tail water treatment

Abstract

The utility model discloses a sampling device suitable for water quality detection in constructed wetland urban tail water treatment, and belongs to the technical field of water quality detection. Comprising a water drawing appliance, an annular clamping ring, a connecting sleeve, an on-off valve and a water taking pipe. Metering scales are engraved on the pipe wall of the water taking pipe, and an end sealing plate is mounted at the top; a piston component is mounted in the end sealing plate; a coil piece and a connecting rod are mounted at the bottom of the piston component; the top of the water drawing appliance is connected with the bottom of the connecting sleeve through an annular clamping ring, and the connecting sleeve is in threaded connection with the water taking pipe. The on-off valve comprises a valve plate and a movable hinge, the movable hinge is fixedly connected to the bottom end of the water taking pipe, and the valve plate is rotationally connected to the movable hinge; the end part of the coil piece is connected with the connecting rod; the end, away from the coil piece, of the connecting rod is connected with the valve plate. The utility model solves the technical problems that the sampling efficiency is low, pollution and hidden dangers are easy to cause, and the requirements of high-frequency rapid water quality sampling detection are difficult to meet.

Description

Technical Field

[0001] This utility model patent designs a sampling device applicable to the field of environmental monitoring and water quality testing technology, in particular, a sampling device applicable to water quality testing of urban tailwater treatment in artificial wetlands. Background Art

[0002] Urban tailwater treatment is a crucial component of urban environmental protection. Constructed wetlands, as a wastewater treatment technology that mimics natural wetland ecosystems, are widely used for this purpose due to their low energy consumption, high efficiency, and eco-friendliness. However, during the operation of constructed wetlands, tailwater quality is affected by a variety of factors, including wetland plant species, wetland structure, and operational management. Therefore, regular water quality testing of urban tailwater from constructed wetlands is crucial for understanding wetland operation, evaluating treatment effectiveness, and optimizing operational parameters.

[0003] Traditional water quality sampling methods often rely on handheld empty bottles and ladles. This approach has limitations in sampling location selection, difficulty controlling sample volume, and susceptibility to contamination during the sampling process. These limitations lead to inaccurate results and a failure to accurately reflect the water quality of urban tailwater from constructed wetlands. Furthermore, this type of sampling suffers from low efficiency and potential safety hazards, making it difficult to meet the needs of high-frequency, rapid water quality sampling and testing. Furthermore, the presence of a large number of aquatic plants in constructed wetlands significantly impacts the representativeness of water samples due to the floating roots and leaves of some plants.

[0004] In order to solve the above problems, it is necessary to develop a sampling device suitable for water quality detection of urban tailwater treatment in artificial wetlands. Utility Model Content

[0005] The purpose of the present invention is to provide a method for achieving the above-mentioned purpose. The present invention provides the following technical solutions: a sampling device suitable for water quality testing of urban tailwater treatment in artificial wetlands, comprising a water drawing device, an annular clamp, a connecting sleeve, an on-off valve and a water intake pipe;

[0006] A sampling cavity is provided in the water intake pipe, a metering scale is engraved on the wall of the water intake pipe, and an end sealing plate is installed on the top; a piston member is installed in the end sealing plate, and the bottom end of the piston member is suitable for moving in the sampling cavity; a coil member and a connecting rod are installed at the bottom of the piston member;

[0007] The top of the water-drawing device is connected to the bottom of the connecting sleeve via an annular clamp. The top of the connecting sleeve is provided with an internal threaded hole, and the bottom of the water intake pipe is provided with an external thread. The connecting sleeve is threadedly connected to the water intake pipe.

[0008] The on-off valve includes a valve plate and a movable hinge, wherein the movable hinge is fixedly connected to the bottom end of the water intake pipe, and the valve plate is rotatably connected on the movable hinge and is suitable for shielding the bottom of the water intake pipe; the end of the coil part is connected to the connecting rod; the end of the connecting rod away from the coil part is connected to the valve plate.

[0009] Furthermore, the water-drawing device includes a water-drawing head and a bellows regulator, wherein the water-drawing head is in the shape of a lotus pod and has a plurality of through holes formed therein;

[0010] A filter mesh is arranged in the water drawing head.

[0011] Furthermore, the bellows regulator is made of flexible material.

[0012] Furthermore, the annular clamp includes an annular clamp and a fixing bolt. The fixing bolt is installed at one end of the annular clamp, and a connecting screw hole is opened at the other end. The fixing bolt is threadedly connected to the connecting screw hole.

[0013] Furthermore, the piston component includes a piston handle, a piston rod and a piston head. The piston head is installed in the sampling cavity, the piston handle is installed outside the water intake pipe, and the two ends of the piston rod are fixedly connected to the piston head and the piston handle respectively; the end sealing plate is suitable for the piston rod to pass through;

[0014] The outer diameter of the end sealing plate is larger than the inner diameter of the top of the water intake pipe; the outer diameter of the piston head is adapted to the inner diameter of the top of the water intake pipe.

[0015] Furthermore, the coil part includes a telescopic coil and a connecting buckle, the upper end of the telescopic coil is fixedly connected to the bottom of the piston head, and the connecting buckle fixedly connects the telescopic coil and the connecting rod.

[0016] Furthermore, the connecting rod is "L"-shaped, and the top direction is arranged coaxially with the water intake pipe.

[0017] Water-drawing device: It is the water sampling port of the device of the present invention, which can penetrate into various sampling locations such as artificial wetlands, and includes a water-drawing head and a bellows regulator.

[0018] Water drawing head: Its appearance is lotus-shaped, and a filter mesh is provided at the water drawing point, which can effectively prevent the suspended roots of aquatic plants from entering the sampling device.

[0019] Bellows regulator: This device is used to connect the water-drawing device with the connecting sleeve and is fixedly connected to the water-drawing head. The bellows is made of flexible material and can be stretched forward and backward, and the direction of the water-drawing head can be adjusted 360°.

[0020] Annular clamp: A fastening device used to fasten the water-drawing device to the connecting sleeve, which includes an annular clamp and a fixing bolt.

[0021] Ring clamp: It is a ring-shaped card made of steel sheet, which can be adjusted in tightness according to the diameter of the connecting sleeve.

[0022] Fixing bolt: used to tighten the ring clamp after the tightness is adjusted to ensure that the device connected by the ring clamp is stable and firm.

[0023] Connecting sleeve: The length can be selected according to actual needs, but in this device, the energy of the piston pressure must be fully considered and it should not be too long. One end of the sleeve is smooth for connecting to the water drawing head, and the other end is an internal threaded head for connecting to the water intake pipe.

[0024] Open / stop valve: It includes a valve plate and a movable hinge. Its function is to open the valve plate when taking water and automatically close the valve plate when the water is taken.

[0025] Valve plate: It is a steel plate product, the size of which is the same as the inner diameter of the water intake pipe. When the device draws water, it is in a vertically open state. When the piston is fully pulled to the top of the water intake pipe, it is in a horizontally closed state. When the piston plug is reset to the bottom of the water intake pipe, it is in an open state again under the action of external force.

[0026] Active hinge: One end of the hinge is fixed to the bottom of the water intake pipe, and the other end is fixed to the valve plate. When it is pulled by external force, the valve plate can be adjusted to open or close.

[0027] Connecting rod: It is appropriate to use 10# (3.5mm diameter) or 12# (2.8mm diameter) iron wire, which has moderate hardness and is used to connect the on-off valve and the coil. Its length is the length from the coil to the valve plate in the vertically open state when the piston plug is at the bottom of the water intake pipe.

[0028] Water intake pipe: It is a transparent plastic product in the shape of a variable diameter circular tube. Its size and capacity can be configured according to actual needs. The tube wall is engraved with measurement marks to facilitate the control of the sampling volume. Its lower end is a connector with a variable cross-section and an external threaded buckle, which is used for convenient connection with the connecting sleeve. The upper end is a cylindrical tube, and the top is sealed with an end sealing plate.

[0029] End sealing plate: It is a sealing plate, which is slightly larger than the outer diameter of the upper end of the water intake pipe and is tightly connected to the upper end of the water intake pipe. There is a hole in its center with a diameter consistent with the diameter of the piston rod to facilitate the up and down movement of the piston.

[0030] Piston component: includes piston handle, piston rod and piston head. Through its up and down movement, a pressure difference between the inside and outside of the water intake pipe occurs, so that water at the sampling point is drawn into the pipe or discharged.

[0031] Piston handle: A plastic handle that facilitates operation of the piston.

[0032] Piston rod: An iron rod with both ends fixed to the piston handle and piston head respectively, used for the up and down movement of the piston.

[0033] Piston head: It is a plastic plug with the same diameter as the upper end of the water intake pipe. It is tightly attached to the periphery and is used to expel the air inside the water intake pipe.

[0034] Coil part: used to control the opening and closing of the on / off valve. It includes a telescopic coil and a connecting buckle. One end of the coil is fixedly connected to the piston head and moves up and down with the piston. The other end is connected to the connecting rod.

[0035] Telescopic coil: It is an automatically retractable built-in coil group, and its configuration coil length is as follows Figure 2 The cross-sectional view shows the length L1+L2.

[0036] Connecting buckle: used to connect and fasten the telescopic coil and the connecting rod.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] Simple structure and easy to carry: The water quality detection sampling device of the present invention adopts a modular splicing design, which is easy to install and disassemble and easy to carry.

[0039] Good safety: The water quality detection sampling device of the present invention reduces the safety risks that operators may face during the sampling process by avoiding and reducing the need to manually touch the water surface to take water samples with a scoop, thereby reducing the safety risks that operators may face during the sampling process.

[0040] Good sampling quality: The water quality detection sampling device of the present invention can effectively filter out suspended matter such as roots and stems of water plants and fallen leaves in the water through the filtering function of the water-drawing device, thereby ensuring the quality and representativeness of the water sample.

[0041] Accurate sampling and measurement: The water quality detection sampling device of the present invention can accurately control the sampling amount through the measuring scale on the wall of the water intake pipe, so as to achieve sampling on demand.

[0042] Wide scope of application: The water quality detection sampling device of the present invention is suitable for water quality sampling of urban tailwater treatment systems such as artificial wetlands of different types and sizes, and has strong versatility.

[0043] High degree of customization: The water quality detection sampling device of the present invention can be customized and adjusted according to the needs of the actual sampling point, such as appropriately lengthening the length of the sleeve and adjusting the volume of the water intake pipe according to the sampling volume requirements, so as to meet the needs of different water quality detection sampling.

[0044] Economical and environmentally friendly: The water quality detection sampling device of the present invention can be designed to use environmentally friendly materials and renewable energy, which can be reused, so that it is economical to use and has good environmental performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] Figure 1 This is a schematic diagram of the overall outer side of the sampling device of the present invention;

[0047] Figure 2 This is a schematic cross-sectional view of the sampling device of the present invention;

[0048] Figure 3 A schematic structural diagram of a water-drawing device for a sampling device of the present invention;

[0049] Figure 4 This is a structural diagram of the annular clamp and connecting sleeve of the sampling device of the utility model;

[0050] Figure 5 This is a structural diagram of the on / off valve and connecting rod of the sampling device of the utility model;

[0051] Figure 6 A top view of the sampling device of the present invention;

[0052] Figure 7 This is a schematic diagram of the connection between the piston head and the coil component of the sampling device of the present invention.

[0053] in:

[0054] 1- Water-drawing equipment;

[0055] 2-annular clamp; 21-annular clamp; 22-fixing bolt;

[0056] 3-Connecting sleeve;

[0057] 4-open / close valve; 41-valve plate; 42-living hinge;

[0058] 5-connecting rod;

[0059] 6-water intake pipe;

[0060] 7-end sealing plate;

[0061] 8-piston member; 81-piston handle; 82-piston rod; 83-piston head;

[0062] 9-coil piece; 91-telescopic coil; 92-connecting buckle. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0064] The application principle of the present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0065] Example 1

[0066] See also Figure 1-7 As shown, an embodiment of the present invention is a sampling device suitable for water quality testing of urban tailwater treatment in artificial wetlands, comprising a water drawing device 1, an annular clamp 2, a connecting sleeve 3, an on / off valve 4 and a water intake pipe 6;

[0067] A sampling cavity is provided in the water intake pipe 6, the wall of the water intake pipe 6 is engraved with a metering scale, and an end sealing plate 7 is installed on the top; a piston member 8 is installed in the end sealing plate 7, and the bottom end of the piston member 8 is suitable for moving in the sampling cavity; a coil member 9 and a connecting rod 5 are installed at the bottom of the piston member 8;

[0068] The top of the water-drawing device 1 is connected to the bottom of the connecting sleeve 3 via an annular clamp 2. The top of the connecting sleeve 3 is provided with an internal threaded hole, and the bottom of the water intake pipe 6 is provided with an external thread. The connecting sleeve 3 is threadedly connected to the water intake pipe 6.

[0069] like Figure 5 As shown, the on-off valve 4 includes a valve plate 41 and a movable hinge 42. The movable hinge 42 is fixedly connected to the bottom end of the water intake pipe 6. The valve plate 41 is rotatably connected on the movable hinge 42 and is suitable for shielding the bottom of the water intake pipe 6. The end of the coil member 9 is connected to the connecting rod 5; the end of the connecting rod 5 away from the coil member 9 is connected to the valve plate 41. The connecting rod 5 is "L"-shaped, and the top direction is coaxial with the water intake pipe 6.

[0070] The water-drawing device 1 includes a water-drawing head 11 and a bellows regulator 12. The water-drawing head 11 is in the shape of a lotus pod and has a plurality of through holes formed therein.

[0071] A filter mesh is provided in the water drawing head 11 .

[0072] like Figure 3 As shown, the material of the bellows regulator 12 is a flexible material, which can be rubber or PP material.

[0073] like Figure 4As shown, the annular clamp 2 includes an annular clamp 21 and a fixing bolt 22. The fixing bolt 22 is installed at one end of the annular clamp 21, and a connecting screw hole is opened at the other end. The fixing bolt 22 is threadedly connected to the connecting screw hole.

[0074] like Figure 2 and 7 As shown, the piston member 8 includes a piston handle 81, a piston rod 82 and a piston head 83. The piston head 83 is installed in the sampling chamber, and the piston handle 81 is installed outside the water intake pipe 6. The two ends of the piston rod 82 are fixedly connected to the piston head 83 and the piston handle 81 respectively; the end sealing plate 7 is suitable for the piston rod 82 to pass through;

[0075] The outer diameter of the end sealing plate 7 is larger than the inner diameter of the top of the water intake pipe 6 ; the outer diameter of the piston head 83 is adapted to the inner diameter of the top of the water intake pipe 6 .

[0076] like Figure 7 As shown, the coil member 9 includes a telescopic coil 91 and a connecting buckle 92 . The upper end of the telescopic coil 91 is fixedly connected to the bottom of the piston head 83 , and the connecting buckle 92 is fixedly connected to the telescopic coil 91 and the connecting rod 5 .

[0077] Sampling method:

[0078] Step 1: Select the specifications and models of the connecting sleeve 3 and the water intake pipe 6 according to the specific conditions such as the sampling volume and sampling point.

[0079] Step 2: Connect and fix the water-drawing device 1 to the connecting sleeve 3 via the annular clamp 2.

[0080] Step 3: Mechanically connect the connecting sleeve 3 and the water intake pipe 6 by turning the thread clockwise to secure them. At the same time, press the piston 8 into the bottom position of the water intake pipe 6. Through the thrust of the mechanical connecting rod 5, the on-off valve 4 is in a vertically open state.

[0081] Step 4: Insert the water-drawing head 11 into the water in the sampling area. If necessary, the bellows regulator 12 can be used to adjust the upper, lower and surrounding angles to select a suitable sampling point.

[0082] Step 5: Lift the piston member 8 upward, pull the piston handle 81 and pull the piston head 83 upward through the piston rod 82. At this time, the coil member 9 fixed to its lower part rises synchronously, and by expelling the air in the water intake pipe 6, under the action of the pressure difference between the inside and outside of the pipe, the water at the sampling point is slowly drawn into the water (storage) pipe 6 through the water-drawing device. When the piston head 83 is pulled to the position of the end sealing plate 7, the water sample has filled the water intake pipe. If necessary, the piston head 83 can also be pulled to the position corresponding to the sampling volume scale, and the corresponding water sample volume is obtained at the same time. When the piston head 83 reaches the required position, the on-off valve 4 is pulled by the mechanical connecting rod 5 under the action of the coil member 9, and the valve plate 41 will be in a horizontal closed state.

[0083] Step 6: Lift the sampling device for water quality testing to complete the on-site sampling of water samples.

[0084] Step 7: After rotating the connecting sleeve 3 of the sampling device for water quality testing counterclockwise to separate it from the water intake pipe 6, align the lower end of the water intake pipe with the detection container and press the piston 8 downward. At the same time, the open / close valve 4 will slowly inject the required amount into the detection container under the action of water pressure and the mechanical connecting rod 5 until the water sample in the water intake pipe 6 is distributed.

[0085] Step 8: Repeat steps 1 to 7 to repeatedly take samples for water quality testing.

[0086] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0087] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A sampling device suitable for water quality testing of urban tailwater treatment in artificial wetlands, characterized by: It comprises a water drawing device (1), an annular clamp (2), a connecting sleeve (3), an on / off valve (4) and a water intake pipe (6); A sampling cavity is provided in the water intake pipe (6), a metering scale is engraved on the wall of the water intake pipe (6), and an end sealing plate (7) is installed on the top; a piston component (8) is installed in the end sealing plate (7), and the bottom end of the piston component (8) is suitable for moving in the sampling cavity; a coil component (9) and a connecting rod (5) are installed at the bottom of the piston component (8); The top of the water-drawing device (1) is connected to the bottom of the connecting sleeve (3) via an annular clamp (2); the top of the connecting sleeve (3) is provided with an internal threaded hole, the bottom of the water intake pipe (6) is provided with an external thread, and the connecting sleeve (3) is threadedly connected to the water intake pipe (6); The on-off valve (4) comprises a valve plate (41) and a movable hinge (42), wherein the movable hinge (42) is fixedly connected to the bottom end of the water intake pipe (6), and the valve plate (41) is rotatably connected to the movable hinge (42) and is suitable for shielding the bottom of the water intake pipe (6); the end of the coil member (9) is connected to the connecting rod (5); and the end of the connecting rod (5) away from the coil member (9) is connected to the valve plate (41).

2. A sampling device suitable for water quality detection of artificial wetland urban tailwater treatment according to claim 1, characterized in that: The water-drawing device (1) comprises a water-drawing head (11) and a bellows regulator (12); the water-drawing head (11) is in the shape of a lotus pod and has a plurality of through holes formed therein; A filter mesh is provided in the water drawing head (11).

3. A sampling device suitable for water quality detection of artificial wetland urban tailwater treatment according to claim 1, characterized in that: The material of the bellows regulator (12) is a flexible material.

4. A sampling device suitable for water quality testing of artificial wetland urban tailwater treatment according to claim 1, characterized in that: The annular clamp (2) comprises an annular clamp (21) and a fixing bolt (22). One end of the annular clamp (21) is provided with the fixing bolt (22), and the other end is provided with a connecting screw hole. The fixing bolt (22) is threadedly connected to the connecting screw hole.

5. A sampling device suitable for water quality testing of artificial wetland urban tailwater treatment according to claim 1, characterized in that: The piston member (8) comprises a piston handle (81), a piston rod (82) and a piston head (83); the piston head (83) is installed in the sampling chamber, the piston handle (81) is installed outside the water intake pipe (6), and the two ends of the piston rod (82) are fixedly connected to the piston head (83) and the piston handle (81) respectively; the end sealing plate (7) is suitable for the piston rod (82) to pass through; The outer diameter of the end sealing plate (7) is larger than the inner diameter of the top of the water intake pipe (6); and the outer diameter of the piston head (83) is adapted to the inner diameter of the top of the water intake pipe (6).

6. A sampling device suitable for water quality testing of urban tailwater treatment in artificial wetlands according to claim 5, characterized in that: The coil member (9) includes a telescopic coil (91) and a connecting buckle (92). The upper end of the telescopic coil (91) is fixedly connected to the bottom of the piston head (83). The connecting buckle (92) fixedly connects the telescopic coil (91) and the connecting rod (5).

7. A sampling device suitable for water quality testing of urban tailwater treatment in artificial wetlands according to claim 5, characterized in that: The connecting rod (5) is L-shaped, and the top direction is coaxially arranged with the water intake pipe (6).

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