Branch estuary water quality section sampling equipment

Abstract

The invention relates to the technical field of water quality detection, and discloses tributary estuary water quality section sampling equipment which comprises a sampling pipe, scales for calibrating the length of the sampling pipe are arranged on the surface of the sampling pipe, one end of the sampling pipe is connected with a sampling pump, and the other end of the sampling pipe is provided with a sampling head and connected with the head of a telescopic component. The sampling head is used for driving the sampling pipe to sink in water, the telescopic part is erected above a river surface by taking the supporting part as a fulcrum, the bottom of the telescopic part is fixed on a river bank through the supporting part, a driving part is arranged on the supporting part, and during sampling, the driving part drives the telescopic part to unfold; the head of the telescopic component moves to the position above the sampling point towards the middle area of the river, and the sampling head sinks to the preset water depth under the action of gravity for sampling. Through cooperation of the telescopic component and the supporting component, the purpose of accurate width and depth sampling is achieved, the sampling difficulty is lowered, intervention of a sampling ship is not needed in the sampling process, and the sampling cost is greatly lowered.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detection, in particular to a tributary estuary water quality section sampling device. Background Art

[0002] In accordance with the "Technical Specifications for Surface Water Environmental Quality Monitoring" (HJ91.2-2022), the number of sampling vertical lines set on the monitoring sections of rivers and channels should meet the following standards: when the water surface width b≤50m, one sampling vertical line is located at the mid-channel; when the water surface width is 50m<water surface width≤100m, two sampling vertical lines are located at the left and right banks where there is obvious water flow, respectively.

[0003] However, in actual operation, rivers with a width of b≤50m have basically no sampling boats due to their shallow water depth, and it is impossible to use sampling boats to reach the corresponding sections of tributaries for monitoring and sampling. Most rivers with a width of 50m<b≤100m do not have sampling boats. Even if there are sampling boats, they are rented floating cleaning boats, other operating boats, or sampling units bring their own rafts. The rental costs are high, the rental time is difficult to coordinate, and the safety risks are high. Therefore, the use of traditional sampling equipment cannot strictly follow the "Technical Specifications for Surface Water Environmental Quality Monitoring" (HJ91.2-2022) for sampling. It only collects water on the river bank and cannot truly reflect the water quality of the river section. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a tributary estuary water quality cross-section sampling device, which solves the problems of difficulty in achieving accurate width and depth sampling and high sampling costs when the water surface width is less than 100m.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tributary estuary water quality section sampling equipment, including a sampling tube, the surface of the sampling tube is provided with a scale for calibrating its length, one end of the sampling tube is connected to a sampling pump, and the other end is provided with a sampling head and connected to the head of a telescopic component, the sampling head is used to drive the sampling tube to sink in the water, the telescopic component is erected above the river surface with a supporting component as a fulcrum, and its bottom is fixed to the river bank through the supporting component, and a driving member is provided on the supporting component. When sampling, the driving member drives the telescopic component to expand, so that the head of the telescopic component moves toward the middle area of ​​the river to above the sampling point, and the sampling head sinks to a predetermined water depth under the action of gravity for sampling. When the sampling is completed, the driving member drives the telescopic component to retract step by step, so that the head of the telescopic component moves toward its bottom. The telescopic length range of the telescopic component is 2-26m.

[0006] Preferably, the supporting component includes a bracket 1, the bottom of which is anchored to the edge of the river bank, and the top of which is connected to a turntable in a horizontally rotatable manner, the upper surface of the turntable is fixedly connected to a limiting seat 1, and a roller is connected to the limiting seat 1 in a vertically rotatable manner, the outer wall of the limiting seat 1 is fixedly connected to a motor 1, the output end of the motor 1 is fixedly connected to the roller shaft end, and is used to drive the roller to rotate, and a V-shaped groove is opened in the middle of the roller around the roller axis, and the surface of the groove is provided with an anti-slip surface.

[0007] Preferably, the supporting component further comprises a bracket 2, an anchor piece is provided at the bottom of the bracket 2 so that the bracket 2 is anchored to the river bank, and a clamp 1 is connected to the top of the bracket 2 in a vertically rotatable manner.

[0008] Preferably, a stop rod is further provided above the roller, and two ends of the stop rod are respectively fixedly connected to two side walls of the limiting seat, and an outer wall of the stop rod is rotatably connected to a sleeve rod.

[0009] Preferably, the telescopic component includes a telescopic rod, which adopts a telescopic fishing rod structure, and a tube sleeve is arranged on the outer wall of its head. The tube sleeve is arranged on the outer wall of the sampling tube, and the two are slidably connected. The remaining segments are provided with a limiting ring, and the sampling tube passes through each limiting ring in turn, and the sampling tube is limited by the limiting ring pair.

[0010] Preferably, the telescopic component includes a second telescopic rod, and the second telescopic rod adopts a telescopic fishing rod structure. The sampling tube is inserted into the head of the second telescopic rod and exits from the bottom, and the outer wall of the sampling tube is slidably connected to the inner wall of the head of the second telescopic rod.

[0011] Preferably, the supporting component includes a bracket three, the bottom of which is anchored to the edge of the river bank, and the top of which is connected to a double-step boss via a universal ball joint connector, the top center of the double-step boss is fixedly connected to an inflation head, an air pipe one is provided in the double-step boss, one end of the air pipe one is connected to the output end of the air pump, and the other end is inserted from the bottom side wall of the double-step boss, and extends upward with the central axis of the double-step boss to be connected to the inflation head.

[0012] Preferably, the supporting component further comprises a bracket four, and an anchor is also provided at the bottom of the bracket four so that the bracket four is anchored to the river bank, and the two ends of the bracket four are respectively connected to the clamp two.

[0013] Preferably, the telescopic component includes a telescopic frame, which adopts a telescopic ladder structure, and a head portion thereof is provided with a tube sleeve II, which is sleeved on the outer wall of the sampling tube and is slidably connected to each other, and other segments are provided with a limiting ring II, and the sampling tube passes through each limiting ring II in turn, and the sampling tube is limited by the limiting ring II, and a foldable airbag is provided between each adjacent two cross beams of the telescopic frame, and a plurality of foldable airbags are connected in series through two tracheae, and an arch frame is fixedly connected to the bottom of the telescopic frame, and a cavity is provided in the arch frame, and the cavity is communicated with the two tracheae, and an air nozzle matching the inflation head is provided at the bottom of the cavity, and when the foldable airbag is inflated, it expands, so that the telescopic frame is unfolded and the telescopic frame floats on the water surface.

[0014] The present invention provides a tributary estuary water quality section sampling device, which has the following beneficial effects:

[0015] The present invention cooperates with the telescopic component and the supporting component. When sampling, the supporting component is used to drive the telescopic component to expand, so that the head of the telescopic component moves toward the middle area of ​​the river to above the sampling point, and then the sampling head is driven by gravity to sink the sampling tube to a predetermined water depth for sampling, thereby achieving the purpose of accurate width and depth sampling and reducing the difficulty of sampling. The sampling process does not require the intervention of the sampling ship, which greatly reduces the sampling cost. At the same time, when the sampling is completed, the driving member drives the telescopic component to retract, so that the head of the retracted component moves toward its bottom, thereby completing the folding and storage of the sampling equipment to achieve the purpose of easy transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a sampling device in Embodiment 1 of the present invention;

[0017] Figure 2 is a three-dimensional diagram of a bracket 1 in Example 1 of the present invention;

[0018] Figure 3 It is a three-dimensional diagram of the bracket 2 in the present invention;

[0019] Figure 4 Schematic diagram of the structure of telescopic rod 1 in embodiment 1 of the present invention;

[0020] Figure 5 It is a partial stereoscopic diagram of the bracket 3 in the second embodiment of the present invention;

[0021] Figure 6 This is a schematic structural diagram of the telescopic rod 2 in the second embodiment of the present invention;

[0022] Figure 7 It is a three-dimensional schematic diagram of the sampling device in the third embodiment of the present invention;

[0023] Figure 8This is a schematic diagram of the structure of the sampling device in the third embodiment of the present invention;

[0024] Fig. 9 It is a three-dimensional schematic diagram of the bracket 4 in the third embodiment of the present invention;

[0025] Fig.10 Schematic diagram of the internal structure of the double-step boss in the third embodiment of the present invention;

[0026] Fig.11 for Fig.10 Enlarged view of point A in the middle.

[0027] Among them, 1. sampling tube; 2. sampling head; 3. sampling pump; 4. bracket one; 5. turntable; 6. limit seat one; 7. roller; 8. motor one; 9. bracket two; 10. clamp one; 11. stop rod; 12. sleeve rod; 13. telescopic rod one; 14. pipe sleeve one; 15. limit ring one; 16. telescopic rod two; 17. bracket three; 18. double-step boss; 19. inflation head; 20. trachea one; 21. bracket four; 22. clamp two; 23. telescopic frame; 24. pipe sleeve two; 25. limit ring two; 26. foldable airbag; 27. trachea two; 28. arch frame; 29. ​​cavity; 30. air nozzle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please refer to the attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a tributary estuary water quality cross-section sampling device, including a sampling tube 1, the surface of the sampling tube 1 is provided with a scale for calibrating its length, one end of the sampling tube 1 is connected to the sampling pump 3, and the other end is provided with a sampling head 2, and is connected to the head of a telescopic component, the sampling head 2 is used to drive the sampling tube 1 to sink in the water, the telescopic component is erected above the river surface with a supporting component as a fulcrum, and its bottom is fixed to the river bank through the supporting component, and a driving member is provided on the supporting component. When sampling, the driving member drives the telescopic component to expand step by step, so that the head of the telescopic component moves toward the middle area of ​​the river to above the sampling point, and the sampling head 2 sinks to a predetermined water depth under the action of gravity for sampling. When the sampling is completed, the driving member drives the telescopic component to retract step by step, so that the head of the telescopic component moves toward its bottom. The telescopic length range of the telescopic component is 2-26m.

[0030] Through the cooperation of the telescopic component and the supporting component, when sampling, the supporting component is used to drive the telescopic component to expand, so that the head of the telescopic component moves toward the middle area of ​​the river to above the sampling point, and then the sampling head 2 is driven by gravity to drive the sampling tube 1 to sink to the predetermined water depth for sampling, thereby achieving the purpose of accurate width and depth sampling and reducing the difficulty of sampling. The sampling process does not require the intervention of the sampling ship, which greatly reduces the sampling cost. At the same time, when the sampling is completed, the driving member drives the telescopic component to retract, so that the head of the retracted component moves toward its bottom, thereby completing the folding and storage of the sampling equipment to achieve the purpose of easy transportation.

[0031] During specific sampling, when the sampling tube 1 is sunk to a predetermined water depth by the sampling head 2, the sampling pump is started to continuously collect water samples into the sampling bottle. After the sampling volume is reached, the sampling pump is turned off and the corresponding accessories are retracted. During the sampling process, the sampling pump can be turned on for a longer period of time to rinse the sampling tube and the sampling bottle.

[0032] The supporting component includes a bracket 4, the bottom of which is anchored to the edge of the river bank, and the top of which is connected to a turntable 5 in a horizontally rotating manner. The upper surface of the turntable 5 is fixedly connected to a limit seat 6, and a roller 7 is connected to the limit seat 6 in a vertically rotating manner. The outer wall of the limit seat 6 is fixedly connected to a motor 8, and the output end of the motor 8 is fixedly connected to the end of the rotating shaft of the roller 7 to drive the roller 7 to rotate. The middle of the roller 7 is provided with a V-shaped groove around the axis of the roller 7, and the surface of the groove is provided with an anti-slip surface. The supporting component also includes a bracket 2 9, and the bottom of the bracket 2 9 is provided with an anchoring piece to anchor the bracket 2 9 to the river bank, and the top of the bracket 2 9 is connected to a clamp 10 in a vertically rotating manner. The telescopic component includes a telescopic rod 13, which adopts a telescopic fishing rod structure. A pipe sleeve 14 is arranged on the outer wall of its head. The pipe sleeve 14 is sleeved on the outer wall of the sampling tube 1, and the two are slidably connected. The remaining segments are all provided with limiting rings 15. The sampling tube 1 passes through each limiting ring 15 in turn, and the sampling tube 1 is limited by the limiting ring 15.

[0033] The sampling steps of this embodiment are: first anchor the bracket 4 and the bracket 2 9 to the edge of the river bank according to the actual size, then pull out a length of the head of the telescopic rod 13 so that it is placed on the roller 7. After adjusting the angle, the bottom of the telescopic rod 13 is clamped and fixed by the clamp 10, and the motor 8 is started to drive the roller 7 to rotate. The gravity of the telescopic rod 13 itself forms friction with the roller 7, and the telescopic rod 13 is gradually unfolded under the action of the roller 7. Of course, during the unfolding process, the sampling tube 1 must also be released until the sampling head 2 is suspended above the sampling point. At this time, the sampling tube 1 continues to be released. Under the gravity of the sampling head 2, the sampling tube 1 sinks into the water until it reaches the preset sampling depth. It should be noted that according to the length of the telescopic rod 13, the distance from the sampling point to the shore and the inclination angle of the telescopic rod 13, the sampling vertical line position can be calculated and determined accurately. After the sampling is completed, the motor 8 drives the roller 7 to reverse, so that the telescopic rod 13 is gradually recovered and folded. During this process, the sampling tube 1 needs to be pulled back in coordination, and finally the equipment can be recovered.

[0034] Embodiment 2:

[0035] Please refer to the attached Figure 5 -Attached Figure 6 On the basis of the above embodiment, the main difference between this embodiment and the above embodiment is that the sampling tube 1 is placed in the telescopic rod 16, that is, the telescopic component includes the telescopic rod 16, the telescopic rod 16 adopts a telescopic fishing rod structure, the sampling tube 1 is inserted from the head of the telescopic rod 16 and exits from the bottom, and the outer wall of the sampling tube 1 is slidably connected to the inner wall of the head of the telescopic rod 16. A stopper 11 is also provided above the roller 7, and the two ends of the stopper 11 are respectively fixedly connected to the two side walls of the limit seat 16, and the outer wall of the stopper 11 is rotatably connected to the sleeve rod 12.

[0036] Through the above scheme, the pipe sleeve 14 and the limiting ring 15 are removed, which not only further reduces the weight borne by the telescopic rod 2 16, but also, due to the cancellation of the limiting ring 15, a blocking rod 11 can be arranged above the roller 7, so that the telescopic rod 2 16 passes between the two. At this time, the blocking rod 11 and the roller 7 form a certain limiting space, so that the telescopic rod 2 16 is restricted therein, and the telescopic rod 2 16 is prevented from falling off during operation. At the same time, when the telescopic rod 2 16 is fixed at a certain angle, the fixed telescopic rod 2 16 is in contact with the roller 7 and the sleeve rod 12 at the same time. This structure ensures the effectiveness of the contact between the telescopic rod 2 16 and the roller 7, and ensures the expansion and recovery of the telescopic rod 2 16 by the roller 7.

[0037] Embodiment three:

[0038] Please refer to the attached Figure 7 -Attached Fig.11 Based on the above embodiments, this embodiment adopts another structure of supporting components and telescopic components.

[0039] The supporting component includes a bracket 3 17, the bottom of which is anchored to the edge of the river bank, and the top of which is connected to a double-step boss 18 through a universal ball joint connector, and an inflating head 19 is fixedly connected to the center of the top of the double-step boss 18, and an air pipe 1 20 is arranged in the double-step boss 18, one end of which is connected to the output end of the air pump, and the other end is inserted from the side wall of the bottom of the double-step boss 18, and extends upward through the central axis of the double-step boss 18 to connect to the inflating head 19. The supporting component also includes a bracket 4 21, and an anchor is also arranged at the bottom of the bracket 4 21 to anchor the bracket 4 21 to the river bank, and the two ends of the bracket 4 21 are respectively connected to a clamp 2 22. The telescopic component includes a telescopic frame 23, which adopts a telescopic ladder structure. A pipe sleeve 24 is provided at its head. The pipe sleeve 24 is sleeved on the outer wall of the sampling tube 1, and the two are slidably connected. The remaining segments are provided with a limiting ring 25. The sampling tube 1 passes through each limiting ring 25 in turn, and the sampling tube 1 is limited by the limiting ring 25. A folding airbag 26 is provided between each adjacent two beams of the telescopic frame 23. Multiple folding airbags 26 are connected in series through the trachea 27. An arch frame 28 is fixedly connected to the bottom of the telescopic frame 23. A cavity 29 is provided in the arch frame 28. The cavity 29 is connected to the trachea 27, and an air nozzle 30 matching the inflation head 19 is provided at the bottom of the cavity 29. When the folding airbag 26 is inflated, it expands, so that the telescopic frame 23 is unfolded and the telescopic frame 23 floats on the water.

[0040] The telescopic component in this embodiment adopts a telescopic frame 23 of a telescopic ladder structure. When it is used for sampling, the bracket three 17 and the bracket four 21 are first anchored to the shore, and then the arch frame 28 on the telescopic frame 23 is correspondingly sleeved on the double-step boss 18 of the bracket three 17, so that the inflation head 19 is inserted into the air nozzle 30. After adjusting the angle, the telescopic frame 23 is clamped and fixed by the clamp two 22 on the bracket four 21, and the air pump is started to inflate. The air enters the cavity 29 from the air pipe one 20 and then enters the foldable airbag 26. The airbag 26 is inflated and expands, thereby pushing the telescopic frame 23 to expand. At the same time, the airbag 26 floats on the water surface, generating buoyancy to make the telescopic frame 23 float on the water surface, so as to solve the problem of the telescopic frame 23 being too heavy. Similarly, a certain length of sampling tube 1 is released, and the sampling tube 1 is sunk into the water under the gravity of the sampling head 2 until it reaches the preset sampling depth. Such a structure makes the telescopic component almost level with the water surface, thereby improving the accuracy of data calculation. After the sampling is completed, the air pump is started to pump air, and the air in the foldable airbag 26 is pumped out, so that it can be folded again as the telescopic frame 23 is retracted. The telescopic frame 23 can be retracted manually, or a spring can be set between each adjacent section of the telescopic frame 23 to utilize the resilience of the spring to achieve the retraction of the telescopic frame 23.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tributary estuary water quality cross-section sampling device, comprising a sampling tube (1), characterized in that: The surface of the sampling tube (1) is provided with a scale for calibrating its length. One end of the sampling tube (1) is connected to the sampling pump (3), and the other end is provided with a sampling head (2) and connected to the head of the telescopic component. The sampling head (2) is used to drive the sampling tube (1) to sink in the water. The telescopic component is erected above the river surface with the support component as a fulcrum, and its bottom is fixed to the river bank through the support component. The support component is provided with a driving member. When sampling, the driving member drives the telescopic component to expand, so that the head of the telescopic component moves toward the middle area of ​​the river to above the sampling point. The sampling head (2) sinks to a predetermined water depth under the action of gravity for sampling. When sampling is completed, the driving member drives the telescopic component to retract, so that the head of the telescopic component moves toward its bottom. The telescopic length range of the telescopic component is 2-26m.

2. A tributary estuary water quality section sampling device according to claim 1, characterized in that: The support component comprises a bracket (4), the bottom of the bracket (4) is anchored to the edge of the river bank, the top of the bracket (4) is connected to a turntable (5) in a horizontally rotatable manner, the upper surface of the turntable (5) is fixedly connected to a limit seat (6), a roller (7) is connected inside the limit seat (6) in a vertically rotatable manner, the outer wall of the limit seat (6) is fixedly connected to a motor (8), the output end of the motor (8) is fixedly connected to the rotating shaft end of the roller (7) for driving the roller (7) to rotate, and a V-shaped groove is provided in the middle of the roller (7) around the axis of the roller (7), and an anti-slip surface is provided on the surface of the groove.

3. A tributary estuary water quality section sampling device according to claim 2, characterized in that: The support component also includes a second bracket (9), the bottom of which is provided with an anchoring piece so that the second bracket (9) is anchored to the river bank, and the top of the second bracket (9) is connected to a clamp (10) in a vertically rotatable manner.

4. A tributary estuary water quality section sampling device according to claim 3, characterized in that: A blocking rod (11) is also provided above the roller (7), and the two ends of the blocking rod (11) are respectively fixedly connected to the two side walls of the limiting seat (6), and the outer wall of the blocking rod (11) is rotatably connected to a sleeve rod (12).

5. A tributary estuary water quality section sampling device according to claim 3, characterized in that: The telescopic component comprises a telescopic rod (13), the telescopic rod (13) adopts a telescopic fishing rod structure, a tube sleeve (14) is arranged on the outer wall of the head, the tube sleeve (14) is sleeved on the outer wall of the sampling tube (1), and the two are slidably connected, and the remaining segments are all provided with a limiting ring (15), the sampling tube (1) passes through each limiting ring (15) in turn, and the sampling tube (1) is limited by the limiting ring (15).

6. A tributary estuary water quality section sampling device according to claim 4, characterized in that: The telescopic component comprises a second telescopic rod (16), the second telescopic rod (16) adopts a telescopic fishing rod structure, the sampling tube (1) is inserted into the head of the second telescopic rod (16) and exits from the bottom, and the outer wall of the sampling tube (1) is slidably connected to the inner wall of the head of the second telescopic rod (16).

7. The tributary estuary water quality section sampling device according to claim 1, characterized in that: The support component comprises a bracket three (17), the bottom of the bracket three (17) is anchored to the edge of the river bank, and the top of the bracket three (17) is connected to a double-step boss (18) through a universal ball joint connector, and the center of the top of the double-step boss (18) is fixedly connected to an inflation head (19), and an air pipe one (20) is arranged in the double-step boss (18), one end of the air pipe one (20) is connected to the output end of the air pump, and the other end is inserted from the bottom side wall of the double-step boss (18), and extends upward with the central axis of the double-step boss (18) to be connected to the inflation head (19).

8. A tributary estuary water quality section sampling device according to claim 7, characterized in that: The support component also includes a bracket four (21), and an anchor is also provided at the bottom of the bracket four (21) to anchor the bracket four (21) to the river bank. The two ends of the bracket four (21) are respectively connected to the clamp two (22).

9. A tributary estuary water quality cross-section sampling device according to claim 8, characterized in that: The telescopic component comprises a telescopic frame (23), the telescopic frame (23) adopts a telescopic ladder structure, the head of which is provided with a second pipe sleeve (24), the second pipe sleeve (24) is sleeved on the outer wall of the sampling tube (1), and the two are slidably connected, and the remaining sections are provided with a second limiting ring (25), the sampling tube (1) passes through each second limiting ring (25) in turn, and the sampling tube (1) is limited by the second limiting ring (25), and a foldable type is provided between each two adjacent cross beams of the telescopic frame (23). An airbag (26), wherein a plurality of foldable airbags (26) are connected in series via a second air pipe (27); an arch frame (28) is fixedly connected to the bottom of the telescopic frame (23); a cavity (29) is arranged in the arch frame (28); the cavity (29) is communicated with the second air pipe (27); and an air nozzle (30) matching the inflation head (19) is arranged at the bottom of the cavity (29); when the foldable airbag (26) is inflated, the telescopic frame (23) is unfolded, and the telescopic frame (23) floats on the water surface.

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