River water quality detection and collection device

Abstract

A river water quality detection and collection device comprises a vertically-arranged U-shaped frame, a plurality of sampling barrels are connected into the U-shaped frame in a sliding mode in the length direction of the U-shaped frame, and the two ends of the upper portion of the U-shaped frame can clamp the sampling barrels inwards through first connecting pieces; a sampling opening is formed in the sampling barrel in the vertical direction, a sealing plug matched with the sampling opening is inserted into the sampling opening, a sliding frame is vertically connected to one side of the U-shaped frame in a sliding mode, the sealing plug is connected with the sliding frame, the sealing plug can move in the axis direction of the sampling opening, and the sealing plug is connected with the sliding frame through a lockable telescopic rod. During sampling, the device is vertically placed in a river, the sliding frame is moved upwards in the length direction of the U-shaped frame, so that the sealing plug is separated from the sampling opening and the sampling opening in the upper end of the sampling barrel for sampling, and after sampling, the sliding frame is moved downwards, so that the sealing plug is moved downwards in the linear direction into the sampling opening for sealing; the sampling points at different depth positions can be sampled at one time, and the phenomenon that water quality samples at different depths are mixed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a river water quality detection and collection device. Background Art

[0002] River water quality sampling is an important means of environmental monitoring, which is used to evaluate and monitor the water quality of rivers.

[0003] In the prior art, the method for sampling river water quality is generally manual sampling or sampling through automatic sampling equipment. Manual sampling is that the staff uses tools such as sampling bottles or sampling guns to take samples at the selected sampling points. However, manual sampling is a single sampling. If sampling is required at different depths of the river, multiple samplings are required, and the water quality sampling efficiency is low. The automatic sampling equipment is expensive and inconvenient to move. Compared with manual sampling, the environmental conditions under which it can work normally are limited, and it cannot be used in complex and changeable environments. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a river water quality detection and collection device.

[0005] The technical solution of this utility model is as follows:

[0006] A river water quality detection and collection device comprises a vertically arranged U-shaped frame, wherein a plurality of sampling tubes are slidably connected in the U-shaped frame along its length direction, and the upper ends of the U-shaped frame can clamp the sampling tubes inwardly through a first connecting piece;

[0007] A sampling port is arranged vertically on the sampling tube, a sealing plug matching with the sampling port is inserted on the sampling port, a sliding frame is vertically slidably connected to one side of the U-shaped frame, the sealing plug is connected to the sliding frame, and the sealing plug can move along the axial direction of the sampling port.

[0008] In order to facilitate the sealing plug to be inserted into the corresponding sampling port in a sealing manner before sampling, the sealing plug is connected to the sliding frame through a lockable telescopic rod.

[0009] Multiple sampling tubes can slide inside the U-shaped frame, and then the sampling tubes are fixed in the U-shaped frame, thereby realizing the adjustment of the height position of the sampling tubes in the U-shaped frame. After placing the device in the selected sampling point, the sealing plug is separated from the sampling port along the length direction of the U-shaped frame by the sliding frame, so as to facilitate sampling of the sampling tubes at different depths. After sampling, the sealing plug is reinserted into the sampling port by sliding the sliding frame, so as to realize one-time water quality sampling at different depths.

[0010] In the above-mentioned process, the sampling tube inside the U-shaped frame is fixed by clamping the upper end of the U-shaped frame inwardly. In order to further improve the fixation of the sampling tube containing the sample and prevent the sampling tube from sliding down during the process of taking it out of the water surface, a plurality of connecting holes are provided in the vertical direction on one side of the U-shaped frame. The connecting holes are threaded holes. Positioning rods that can extend to the bottom surface of the sampling tube or abut against the outer wall of the sampling tube are passed through the connecting holes. The positioning rods are threadedly connected to the threaded holes. Before the sampling tube is placed in the water flow, the position of the U-shaped frame is adjusted, and the sampling tubes are fixed in the U-shaped frame by the positioning rods.

[0011] In order to achieve adjustment and fixation of the sampling tube at any position in the U-shaped frame, the spacing between adjacent connecting holes is set to be smaller than the length of the sampling tube in the vertical direction.

[0012] After sampling, the sliding frame drives the sealing plug to be reinserted into the sampling port. To prevent the sealing plug from being separated from the sampling port, a detachable connection is provided between the sliding frame and the upper portion of the U-shaped frame, and the sliding frame is connected and fixed to the upper portion of the U-shaped frame.

[0013] Regarding the specific structure of the sampling port, the sampling port is arranged at the upper end of the sampling tube to prevent leakage of water quality samples, and the inner diameter of the sampling port decreases from top to bottom. The sealing plug cooperates with the sampling port and has an inverted cone structure, which is convenient for pressing down the sliding frame to seal the sampling port through the sealing plug.

[0014] In order to facilitate taking out water samples, a liquid outlet pipe with a valve is provided at the bottom of the sampling tube, and the liquid outlet pipe is arranged on a side away from the sliding frame.

[0015] Regarding the connection structure between the sampling tube and the U-shaped frame, two opposite inner sides of the U-shaped frame are vertically provided with arc-shaped sliding grooves, and the sampling tube is slidably connected in the arc-shaped sliding grooves.

[0016] In order to facilitate the smooth placement of the U-shaped frame and multiple sampling tubes to the specified depth position, a counterweight block is provided at the bottom end of the U-shaped frame.

[0017] The beneficial effects of the present invention are:

[0018] Before sampling, the device first adjusts the positions of multiple sampling tubes on the U-shaped frame according to the different depths of the selected detection points, and then connects the upper two ends of the U-shaped frame through the first connecting member, so that the two ends of the U-shaped frame clamp the sampling tubes inside it toward the inside, and then fixes the sampling tubes in the U-shaped frame through the positioning rod to prevent the sampling tubes from sliding after sampling;

[0019] When sampling, the device is placed vertically into the river to be tested, and the sliding frame is moved up, and the sliding frame moves up along the length direction of the U-shaped frame, so that the sealing plug is separated from the sampling port, and the sampling is taken through the sampling port at the upper end of the sampling tube. After sampling, the sliding frame is moved down, so that the sealing plug moves down in a straight line to the sampling port, the sampling port is sealed, and the sliding frame is fixed on the U-shaped frame. The device is taken out, and sampling of multiple sampling points at different depths is achieved at one time, and the phenomenon of mixing of water quality samples at different depths will not be caused;

[0020] Each time the position of the sampling barrel in the U-shaped frame is adjusted, the position of the sealing plug may not correspond to the position of the adjusted sampling port. For this reason, the sealing plug is connected to the sliding frame through a lockable telescopic rod, which can be adaptively adjusted according to the position of the sampling port and is suitable for adjusting different positions of the sampling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure;

[0023] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 It is a top view;

[0025] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0026] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure in the middle AA direction;

[0027] Figure 6 It is the right view;

[0028] Figure 7 It is a schematic diagram of the sampling tube structure;

[0029] The components represented by the reference numerals in the figure are:

[0030] 1. U-shaped frame; 11. Vertical plate; 12. Connecting plate; 13. Arc-shaped slide groove; 14. Dovetail groove; 15. Connecting hole; 2. Sampling tube; 21. Sampling port; 22. Liquid outlet pipe; 3. First connecting piece; 4. Second connecting piece; 5. Positioning rod; 6. Counterweight block; 7. Sliding frame; 71. Sliding bar; 72. Fixed rod; 8. Telescopic rod; 9. Sealing plug. DETAILED DESCRIPTION

[0031] See also Figure 1 , Figure 5 and Figure 6A river water quality detection and collection device is shown. The utility model can be used manually at a point to be detected alone, or can be used in conjunction with a sampling boat at any position in the river. The river water quality detection and collection device includes a vertically arranged U-shaped frame 1, and arc-shaped slide grooves 13 are vertically opened on the two opposite inner sides of the U-shaped frame 1. A plurality of sampling tubes 2 are slidably connected in the U-shaped frame 1 along its length direction. The sampling tubes 2 are slidably connected in the arc-shaped slide grooves 13. The upper ends of the U-shaped frame 1 can clamp the sampling tubes 2 inwardly through the first connecting member 3. The material of the U-shaped frame 1 can be metal or plastic, and has certain elastic properties, which facilitates the upper ends to move closer to the inside to achieve the clamping of the sampling tube 2 inside it.

[0032] See also Figure 2 and Figure 7 As shown, a sampling port 21 is provided on the sampling barrel 2 in the vertical direction. The sampling port 21 can be set at the upper end or the lower end of the sampling barrel 2. The sampling port 21 of this embodiment is set at the upper end of the sampling barrel 2, and the inner diameter of the sampling port 21 decreases from top to bottom. The sealing plug 9 cooperates with the sampling port 21 and is an inverted cone structure. A sealing plug 9 matching it is inserted on the sampling port 21. The sealing plug 9 can seal the sampling port 21, and the material of the sealing plug 9 can be rubber.

[0033] See also Figure 1 , Figure 3 and Figure 4 As shown, the U-shaped frame 1 includes two symmetrically arranged vertical plates 11 and a connecting plate 12 for connecting the lower ends of the two vertical plates 11, thereby forming a U-shaped structure, and an arc-shaped slide groove 13 is arranged on the inner side surface of the vertical plate 11, and the inner side surface is the opposite surface of the two vertical plates 11, and a scale is arranged on the vertical plate 11, and the position of the sampling tube 2 on the vertical plate 11 can be adjusted according to the scale, so as to control the position height of the sampling tube 2 in the water. The same side of the two vertical plates 11 is provided with a dovetail groove 14 along the length direction, and the same side of the two vertical plates 11 is provided with a slide frame 7, which is a frame-type structure, and the slide frame 7 is provided with a slide bar 71 near the side of the vertical plate 11, and the slide bar 71 is adapted to the dovetail groove 14, and the slide frame 7 is slidably connected with the vertical plate 11 through the slide bar 71, and the sliding direction is the length direction of the vertical plate 11. The sealing plug 9 is connected to the slide frame 7 through a lockable telescopic rod 8, so that the sealing plug 9 can move along the axis direction of the sampling port 21. In order to facilitate the U-shaped frame 1 and multiple sampling tubes 2 to be smoothly placed at the specified depth position, a counterweight block 6 is provided at the bottom end of the U-shaped frame 1.

[0034] Multiple sampling tubes 2 can slide inside the U-shaped frame 1, and then the sampling tubes 2 are fixed inside the U-shaped frame 1, so as to adjust the height position of the sampling tubes 2 inside the U-shaped frame 1. After placing the device at the selected sampling point, the sealing plug 9 is separated from the sampling port 21 along the length direction of the U-shaped frame 1 by the sliding frame 7, so as to facilitate sampling of the sampling tubes 2 at different depths. After sampling, the sealing plug 9 is re-inserted into the sampling port 21 by sliding the sliding frame 7, so as to achieve one-time water quality sampling at different depths. In order to facilitate the removal of water quality samples, a liquid outlet pipe 22 with a valve is provided at the bottom of the sampling tube 2, and the liquid outlet pipe 22 is arranged on the side away from the sliding frame 7.

[0035] See also Figure 2 As shown, each time the position of the sampling tube 2 in the U-shaped frame 1 is adjusted, the position of the sealing plug 9 may not correspond to the position of the adjusted sampling port 21. For this reason, the sealing plug 9 is connected to the sliding frame 7 through a lockable telescopic rod 8, which can be adaptively adjusted according to the position of the sampling port 21, and is suitable for adjusting different positions of the sampling tube 2. Since the sliding frame 7 is arranged on the outside of the sealing plug 9, the sealing plug 9 needs to move in a straight line direction. For this reason, a plurality of fixed rods 72 are arranged on the sliding frame 7, and the plurality of fixed rods 72 are arranged corresponding to the telescopic rod 8. The fixed rod 72 can be arranged tilted. The upper end of the telescopic rod 8 is connected to the sliding frame 7 through the fixed rod 72, and the lower end of the telescopic rod 8 is fixedly connected to the upper end of the sealing plug 9, and the axis of the telescopic rod 8 is coaxial with the axis of the sealing plug 9, so that the linear movement of the sliding frame 7 drives the linear movement of the telescopic rod 8, and then the sealing plug 9 can move up and down on the sampling port 21, and the sampling port 21 is opened and closed.

[0036] See also Figure 1 and Figure 6 As shown, the upper end of the U-shaped frame 1 is clamped inward to fix the sampling tube 2 therein. In order to further improve the fixation of the sampling tube 2 containing the sample and prevent the sampling tube 2 from sliding down during the process of taking it out of the water surface, a plurality of connecting holes 15 are provided on one side of the U-shaped frame 1 in the vertical direction. The connecting holes 15 are threaded holes. A positioning rod 5 that can extend to the bottom surface of the sampling tube 2 or abut against the outer wall of the sampling tube 2 is passed through the connecting holes 15. The positioning rod 5 is threadedly connected to the threaded hole. Before the sampling tube 2 is placed in the water flow, after adjusting the position of the U-shaped frame 1, the sampling tube 2 is fixed in the U-shaped frame 1 by the positioning rod 5. In order to achieve the adjustment and fixation of the sampling tube 2 at any position in the U-shaped frame 1, the spacing between adjacent connecting holes 15 is set to be smaller than the length of the sampling tube 2 in the vertical direction.

[0037] After sampling, the slide frame 7 drives the sealing plug 9 to reinsert into the sampling port 21. To prevent the sealing plug 9 from detaching from the sampling port 21, the slide frame 7 is detachably connected to the upper portion of the U-shaped frame 1 through a second connecting member 4. The second connecting member 4 is arranged on one side of the vertical plate 11. The second connecting member 4 can extend through the vertical plate 11 to the dovetail groove 14, so that one end of the second connecting member 4 can be tightened onto the slide bar 71 in the dovetail groove 14, thereby connecting and fixing the slide frame 7 to the upper portion of the U-shaped frame 1.

[0038] Before sampling, the device first adjusts the positions of the multiple sampling tubes 2 on the U-shaped frame 1 according to the different depths of the selected detection points, and then connects the upper two ends of the U-shaped frame 1 through the first connecting member 3, so that the two ends of the U-shaped frame 1 clamp the sampling tubes 2 inside it inwardly, and then further fixes the sampling tubes 2 in the U-shaped frame 1 through the positioning rod 5 to prevent the sampling tubes 2 from sliding after sampling;

[0039] When sampling, the device is placed vertically into the river to be tested, and the sliding frame is moved up and moved up along the length direction of the U-shaped frame 1, so that the sealing plug 9 is separated from the sampling port 21, and the sample is taken through the sampling port 21 at the upper end of the sampling tube 2. After sampling, the sliding frame is moved down, so that the sealing plug 9 moves down in a straight line to the sampling port 21, and the sampling port 21 is sealed. The sliding frame is fixed to the U-shaped frame 1 through the second connecting member 4, and the device is taken out. The water quality samples at different positions can be transferred to different sample storage containers by taking out the sampling tube 2 separately or opening the corresponding liquid outlet pipe 22.

Claims

1. A river water quality detection and collection device, characterized in that: It comprises a U-shaped frame (1) arranged vertically, wherein a plurality of sampling tubes (2) are slidably connected in the U-shaped frame (1) along its length direction, and the upper ends of the U-shaped frame (1) are capable of clamping the sampling tubes (2) inwardly through a first connecting piece (3); The sampling tube (2) is provided with a sampling port (21) in the vertical direction, and a sealing plug (9) matching with the sampling port (21) is inserted into the sampling port (21). A sliding frame (7) is vertically slidably connected to one side of the U-shaped frame (1), and the sealing plug (9) is connected to the sliding frame (7), and the sealing plug (9) can move along the axial direction of the sampling port (21).

2. A river water quality detection and collection device according to claim 1, characterized in that: The sealing plug (9) is connected to the sliding frame (7) via a lockable telescopic rod (8).

3. A river water quality detection and collection device according to claim 1, characterized in that: A plurality of connection holes (15) are provided on one side of the U-shaped frame (1) in the vertical direction, and positioning rods (5) are passed through the connection holes (15) and are capable of extending to the bottom surface of the sampling barrel (2) or abutting against the outer wall of the sampling barrel (2).

4. A river water quality detection and collection device according to claim 3, characterized in that: The distance between adjacent connecting holes (15) is smaller than the length of the sampling tube (2) in the vertical direction.

5. A river water quality detection and collection device according to claim 1 or 2, characterized in that: The sliding frame (7) is detachably connected to the upper portion of the U-shaped frame (1).

6. A river water quality detection and collection device according to claim 1, characterized in that: The sampling port (21) is arranged at the upper end of the sampling cylinder (2), and the inner diameter of the sampling port (21) decreases from top to bottom.

7. A river water quality detection and collection device according to claim 1, characterized in that: A liquid outlet pipe (22) with a valve is provided at the bottom of the sampling tube (2), and the liquid outlet pipe (22) is arranged on a side away from the sliding frame (7).

8. A river water quality detection and collection device according to claim 1, characterized in that: The two opposite inner side surfaces of the U-shaped frame (1) are both vertically provided with arc-shaped sliding grooves (13), and the sampling tube (2) is slidably connected in the arc-shaped sliding grooves (13).

9. A river water quality detection and collection device according to claim 1, characterized in that: A counterweight block (6) is provided at the bottom end of the U-shaped frame (1).

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