Self-tapping sampling device for water quality detection

Abstract

The invention relates to the technical field of water quality detection, in particular to a self-tapping sampling device for water quality detection, which comprises a support plate, the upper end of the support plate is fixedly connected with a support frame, the support frame is provided with a range sampling structure, and the range sampling structure comprises a mounting plate. The device comprises a mounting plate, the mounting plate is provided with a sampling barrel which can rotate circumferentially in a range and can adjust the circumferential rotation radius according to the water area, the diving depth of the sampling barrel in the circumferential rotation process changes in an oval shape, the mounting plate is provided with a pressure pumping assembly connected with a sampling barrel pipeline, and the pressure pumping assembly comprises a liquid outlet pipe. The mounting plate is slidably connected with a storage plate, and the problem that in the prior art, sampling equipment moves to a certain site of a water body in an area, sampling detection and comparison are carried out on the site at different depths, and the range of a point sampling mode is small, so that the error of a collected water body sample is large is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detection, and in particular to a self-tapping sampling device for water quality detection. Background Art

[0002] Water quality testing is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants and their changing trends, and evaluating the water quality status. The monitoring scope is very wide, including unpolluted and polluted natural water and various industrial drainage. The main monitoring items can be divided into two categories: one is comprehensive indicators reflecting water quality conditions, such as temperature, color, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biochemical oxygen demand; the other is some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides. Generally, a sampling device is required when sampling water bodies, which can carry out targeted quantitative extraction of water bodies in the area, so that staff can quickly obtain water quality samples.

[0003] However, the existing water quality testing sampling devices have relatively simple functionality. The sampling equipment is usually moved to a certain point in the water body in the area, and sampling, testing and comparison are carried out at different depths of the point. The point sampling method has a small range, resulting in large errors in the collected water samples. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a self-tapping sampling device for water quality testing, which effectively solves the problem that the sampling equipment in the prior art moves to a certain point of the water body in the area, and performs sampling, testing and comparison at different depths of the point, and the point sampling method has a small range, resulting in large errors in the collected water samples.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A self-tapping sampling device for water quality testing, comprising a support plate, the upper end of the support plate is fixedly connected to a support frame, the support frame is provided with a range sampling structure, the range sampling structure comprises a mounting plate, the mounting plate is provided with a sampling barrel which can rotate in a range and whose radius of circular rotation can be adjusted according to the area of ​​water area, and the diving depth of the sampling barrel changes in an elliptical shape during the circular rotation, the mounting plate is provided with a suction and pressure assembly connected to the sampling barrel pipeline, the suction and pressure assembly comprises a liquid outlet pipe, the mounting plate is slidably connected with a receiving plate, and the receiving plate is provided with a plurality of storage tanks corresponding to the liquid outlet pipe.

[0006] The transmission gear of the present invention is a gear which is connected with the gear of the gear to the upper and lower ends of the gear of the gear train, and the gear is meshed with the gear of the gear train, and the gear is connected with the gear of the gear train respectively and the gear is meshed with the gear of the gear train.

[0007] Preferably, a fixing plate is fixedly connected to the upper end of the support frame, a first rotatable rotating shaft column is provided on the fixing plate, a towing line is installed on the first rotating shaft column, a second rotating shaft column corresponding to the first rotating shaft column is provided on the mounting plate, the towing line passes through the inner wall of the second rotating shaft column, a gravity block is provided at the end of the towing line, the sampling tube is provided at the lower end of the gravity block, a telescopic tube connected to the sampling tube is provided at the upper end of the gravity block, the pumping and pressing assembly includes a water pump provided on the mounting plate, and a liquid inlet pipe connected to the telescopic tube is provided at one end of the water pump.

[0008] Preferably, a second motor is provided on the mounting plate, an output end of the second motor is fixedly connected to a spur gear, a spur rack meshing with the spur gear is provided on the upper end of the storage plate, and sliding pins slidably connected to the inner wall of the mounting plate are respectively provided at both ends of the storage plate.

[0009] Preferably, a plurality of universal wheels are respectively provided at the lower ends of the support plates.

[0010] Preferably, the gravity block is in the shape of a disk, and the disk diameter of the gravity block is larger than the spiral diameter of the telescopic tube.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention effectively increases the circumferential range of sampling by controlling the sampling tube to perform a range of circular rotation in the water area to be sampled, and can sample points on the circumference of the circle. Compared with single point sampling, the sampling result is more accurate.

[0012] 2. The range of the circular rotation of the sampling tube can be adjusted according to the sampling needs to improve the functionality of the sampling equipment and can be used to collect samples in waters with different pollution levels.

[0013] 3. When the first rotating shaft column and the second rotating shaft column are closest to each other, the gravity block drives the sampling tube to dive to the maximum depth in the water area; when the first rotating shaft column and the second rotating shaft column are farthest apart, the gravity block drives the sampling tube to dive to the shallowest depth in the water area. Therefore, the gravity block dives from shallow to deep while rotating in a circle, and the diving trajectory is closed, thereby realizing that the gravity block drives the sampling tube to dive in a closed elliptical shape during the circular rotation, and continuous sampling can be performed at different depths within the sampling range of the same water area, thereby improving sampling efficiency.

[0014] 4. The storage tank can be replaced to collect and subsequently test continuous samples from different locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a first isometric view of a self-tapping sampling device for water quality detection of the present invention; Figure 2 It is a second isometric view of a self-tapping sampling device for water quality detection of the present invention; Figure 3 It is a structural schematic diagram of a rotating plate of a self-tapping sampling device for water quality detection of the present invention; Figure 4 It is a structural schematic diagram of a frame plate of a self-tapping sampling device for water quality detection of the present invention; Figure 5 It is a structural schematic diagram of a support frame of a self-tapping sampling device for water quality detection of the present invention; Figure 6 It is a structural schematic diagram of a first slider and a second slider of a self-tapping sampling device for water quality detection of the present invention; Figure 7 It is a schematic structural diagram of a telescopic tube of a self-tapping sampling device for water quality detection of the present invention; Figure 8 It is a structural schematic diagram of a receiving plate of a self-tapping sampling device for water quality detection of the present invention; Fig. 9 It is a schematic diagram of the structure of a storage tank of a self-tapping sampling device for water quality detection of the present invention; Fig.10 A self-tapping sampling device for water quality detection according to the present invention Figure 4 A partial enlarged view of area A; In the figure: 1, support plate, 2, universal wheel, 3, support frame, 4, rotating plate, 5, first slide bar, 6, second slide bar, 7, second slide block, 8, mounting plate, 9, towing line, 10, telescopic tube, 11, sampling tube, 12, frame plate, 13, first motor, 14, active bevel gear, 15, driven bevel gear, 16, rotating column, 17, rotating handle, 18, screw rod, 19, third slide block, 20, latch, 21, fixing block, 22, pin, 23, first rotating shaft column, 24, first slide block, 25, second rotating shaft column, 26, gravity block, 27, water pump, 28, liquid inlet pipe, 29, liquid outlet pipe, 30, second motor, 31, spur rack, 32, spur gear, 33, storage tank, 34, storage plate, 35, sliding pin, 36, screw barrel, 37, fixed support plate. DETAILED DESCRIPTION

[0016] like Figure 1-10 As shown, a self-tapping sampling device for water quality detection includes a support plate 1, the upper end of the support plate 1 is fixedly connected to a support frame 3, the support frame 3 is provided with a range sampling structure, the range sampling structure includes a mounting plate 8, the mounting plate 8 is provided with a sampling barrel 11 which can rotate in a range and the radius of the circular rotation can be adjusted according to the water area, and the diving depth of the sampling barrel 11 changes elliptically during the circular rotation, the mounting plate 8 is provided with a pumping and pressing assembly connected to the sampling barrel 11 through a pipeline, the pumping and pressing assembly includes a liquid outlet pipe 29, the mounting plate 8 is slidably connected to a receiving plate 34, and the receiving plate 34 is provided with a plurality of storage tanks 33 corresponding to the liquid outlet pipe 29.

[0017] When the present invention is in use, the device is moved to the water area to be sampled, the range sampling structure is controlled to work, and the sampling tube 11 performs a range circular rotation in the water area to be sampled, thereby increasing the sampling range. Compared with point sampling, the sampling result is more accurate, and the radius of the circular rotation of the sampling tube 11 can be adjusted according to the sampling needs to improve the functionality of the sampling equipment. The diving depth of the sampling tube 11 changes in an elliptical shape during the circular rotation, so that continuous sampling of water areas at different depths within the same sampling range can be achieved, thereby improving the sampling efficiency. The suction and pressure assembly provides power to extract the samples in the water area from the sampling tube 11 to the storage tank 33 of the storage plate 34, and the storage tank 33 can be replaced, so as to store and collect the continuous samples at different positions and conduct subsequent detection.

[0018] The range sampling structure also includes a first motor 13 arranged at the bottom of the support plate 1, the output end of the first motor 13 is fixedly connected to a driving bevel gear 14, the driving bevel gear 14 is meshed with a driven bevel gear 15, the driven bevel gear 15 is provided with a rotating column 16 rotatably connected to the support plate 1, the upper end of the rotating column 16 is fixedly connected to a rotating plate 4, the upper end of the rotating plate 4 is fixedly connected to a frame plate 12, the inner wall of the frame plate 12 is slidably connected to a third slider 19, the inner wall of the third slider 19 is fixedly connected to a screw barrel 36, the frame plate 12 is rotatably connected to the third slider 19, the inner wall of the third slider 19 is fixedly connected to the third slider 19, and the inner wall of the third slider 19 is fixedly connected to the third slider 19. There is a spiral rod 18 threadedly connected to the screw barrel 36, a latch pin 20 is provided at the upper end of the third slider 19, a pair of second slide bars 6 are provided on the support frame 3, a second slide bar 7 is slidably connected to the second slide bar 6, a first slide bar 24 is provided at the upper end of the second slide bar 7, and first slide bars 5 are slidably connected to both ends of the first slide bar 24, one end of the first slide bar 5 is fixedly connected to the mounting plate 8, and the other end of the first slide bar 5 is fixedly connected to a fixing block 21, and a pin rod 22 rotatably connected to the latch pin 20 is provided on the fixing block 21.

[0019] like Figure 3 As shown, the first motor 13 is working, the output end of the first motor 13 drives the active bevel gear 14 to rotate, the active bevel gear 14 drives the driven bevel gear 15 to rotate, and the driven bevel gear 15 drives the rotating column 16 to rotate. Since the rotating column 16 is arranged at the middle end of the rotating plate 4, the rotating column 16 can drive the rotating plate 4 to rotate. Figure 4 As shown, the rotating plate 4 can drive the third slider 19 to rotate in a circle during the rotation process, and the third slider 19 drives the latch pin 20 to rotate in a circle. Since a rotating handle 17 is provided at one end of the spiral rod 18, the spiral rod 18 is driven to rotate by the rotating handle 17, and the spiral rod 18 is threadedly engaged with the screw barrel 36 on the inner wall of the third slider 19, thereby driving the third slider 19 to slide along the axial direction of the spiral rod 18. Therefore, when the rotating plate 4 rotates, the third slider 19 can slide along the axial direction of the spiral rod 18, thereby realizing the adjustment of the circumferential rotation range of the latch pin 20 on the third slider 19, as shown in FIG. Figure 5 and 6As shown, since the latch 20 is arranged in the pin rod 22 and is rotatably arranged with the inner wall of the pin rod 22, the latch 20 drives the pin rod 22 at one end of the fixed block 21 during the circular rotation, thereby driving the first slide bars 5 on both sides of the fixed block 21 to slide along the inner wall of the first slide bar 24. Since the latch 20 rotates in a circle, the pin rod 22 provides a deflection force for the first slide bar 5 to rotate in a circle. At the same time, in order to alleviate the deflection force and ensure that the first slide bar 5 can slide normally, the second slide bar 7 can slide axially along the second slide bar 6, and the first slide bar 5 and the second slide bar 6 are vertically crossed, thereby realizing the circumferential deflection of the mounting plate 8 at the end of the first slide bar 5, thereby realizing the circumferential rotation of the sampling tube 11 in a range within the water area to be sampled, effectively increasing the circumferential range of sampling, and sampling can be performed on the point on the circumference. Compared with single point sampling, the sampling result is more accurate.

[0020] A fixing plate 37 is fixedly connected to the upper end of the support frame 3, and a first rotatable rotating shaft column 23 is arranged on the fixing plate 37, and a towing line 9 is installed on the first rotating shaft column 23. A second rotating shaft column 25 corresponding to the first rotating shaft column 23 is arranged on the mounting plate 8, and the towing line 9 penetrates the inner wall of the second rotating shaft column 25. A gravity block 26 is arranged at the end of the towing line 9, and the sampling tube 11 is arranged at the lower end of the gravity block 26. A telescopic tube 10 connected to the sampling tube 11 is arranged at the upper end of the gravity block 26. The pumping and pressing assembly includes a water pump 27 arranged on the mounting plate 8, and one end of the water pump 27 is provided with a liquid inlet pipe 28 connected to the telescopic tube 10.

[0021] like Figure 1 and 5 As shown, the fixed support plate 37 supports and fixes the first rotating shaft column 23. When the gravity block 26 rotates in a circle with the sampling tube 11, the gravity block 26 always keeps the towing line 9 in a tensioned state under the action of gravity. Therefore, when the second rotating shaft column 25 rotates in a circle with the mounting plate 8, the distance between the second rotating shaft column 25 and the first rotating shaft column 23 changes. Since one end of the towing line 9 is fixedly arranged on the first rotating shaft column 23 and is in a tensioned state, when the first rotating shaft column 23 and the second rotating shaft column 25 are closest to each other, the gravity block 26 at the end of the towing line 9 drives the sampling tube 11 to rotate in a circle. 11 dives into the water area to a maximum depth. When the first rotating shaft column 23 and the second rotating shaft column 25 are farthest apart, the gravity block 26 drives the sampling tube 11 to dive into the water area to a shallowest depth. Therefore, the gravity block 26 dives from shallow to deep while rotating in a circle, and the diving trajectory is closed, thereby realizing that the gravity block 26 drives the sampling tube 11 to dive in a closed elliptical shape during the circular rotation. Continuous sampling can be performed at different depths within the sampling range of the same water area, thereby improving the sampling efficiency. The water pump 27 provides power for the sampling tube 11 to draw out the samples to be taken in the water area.

[0022] A second motor 30 is arranged on the mounting plate 8, and a spur gear 32 is fixedly connected to the output end of the second motor 30. A spur rack 31 meshing with the spur gear 32 is arranged on the upper end of the storage plate 34, and sliding pins 35 slidably connected to the inner wall of the mounting plate 8 are respectively arranged at both ends of the storage plate 34.

[0023] like Figure 8 and 9 As shown, the second motor 30 is working, and the output end of the second motor 30 drives the spur gear 32 to rotate. During the rotation of the spur gear 32, it meshes with the spur rack 31 on the storage plate 34, so that the storage plate 34 slides along the inner wall of the mounting plate 8 under the limitation of the sliding pins 35 at both ends, and the storage tank 33 on the storage plate 34 is replaced, and different storage tanks 33 are used to sample water areas at different positions.

[0024] A plurality of universal wheels 2 are respectively provided at the lower ends of the support plates 1 .

[0025] like Figure 1 As shown, the universal wheel 2 facilitates the movement of the device.

[0026] The gravity block 26 is in a disc shape, and the disc diameter of the gravity block 26 is larger than the spiral diameter of the telescopic tube 10 .

[0027] like Figure 2 and 7 As shown, the disc diameter of the gravity block 26 is larger than the spiral diameter of the telescopic tube 10, which can effectively ensure that the telescopic tube 10 can be extended and retracted during the lifting and lowering process of the gravity block 26.

[0028] The working process of the present invention is as follows: when the present invention is used, the device is moved to the water area to be sampled, the first motor 13 works, the output end of the first motor 13 drives the active bevel gear 14 to rotate, the active bevel gear 14 drives the driven bevel gear 15 to rotate, the driven bevel gear 15 drives the rotating column 16 to rotate, since the rotating column 16 is arranged at the middle end position of the rotating plate 4, the rotating column 16 can drive the rotating plate 4 to rotate, the rotating plate 4 can drive the third slider 19 to rotate in a circle during the rotation process, the third slider 19 drives the latch 20 to rotate in a circle, since a rotating handle 17 is arranged at one end of the spiral rod 18, the spiral rod 18 is driven to rotate by the rotating handle 17, and the spiral rod 18 is threadedly matched with the screw barrel 36 on the inner wall of the third slider 19 The third slider 19 is coupled to the screw rod 18, thereby driving the third slider 19 to slide axially along the screw rod 18. Therefore, when the rotating plate 4 rotates, the circumferential rotation range of the latch pin 20 on the third slider 19 can be adjusted by the axial sliding of the third slider 19 along the screw rod 18. During the circumferential rotation of the latch pin 20, the pin 22 at one end of the fixed block 21 is driven to slide along the inner wall of the first slider 24. The first slider 24 is subjected to the deflection force of the circumferential rotation and thereby drives the second slider 7 to slide along the second slider 6. Therefore, the sampling tube 11 can perform a range of circumferential rotation in the water area to be sampled, thereby increasing the sampling range. Compared with point sampling, the sampling result is more accurate. As the gravity block 26 rotates in a circle with the sampling tube 11, the gravity block 26 always keeps the towing line 9 in a tensioned state under the action of gravity. Therefore, when the second rotating shaft column 25 rotates in a circle with the mounting plate 8, the distance between it and the first rotating shaft column 23 changes. When the two are closest to each other, the depth of the gravity block 26 in the water area reaches the maximum, and when the two are farthest apart, the depth of the gravity block 26 in the water area is shallowest, thereby achieving the gravity block 26 driving the sampling tube 11 to change its diving depth in an elliptical shape during the circular rotation, and continuous sampling is performed at different depths within the sampling range of the same water area, thereby improving the sampling efficiency.

[0029] The water pump 27 provides power for the sampling tube 11, and draws the sample in the water area from the sampling tube 11 into the storage tank 33 of the storage plate 34. The second motor 30 works, and the output end of the second motor 30 drives the spur gear 32 to rotate. During the rotation of the spur gear 32, it engages with the spur rack 31 on the storage plate 34, so that the storage plate 34 slides along the inner wall of the mounting plate 8 under the limitation of the sliding pins 35 at both ends, and the storage tank 33 on the storage plate 34 is replaced, and different storage tanks 33 are used to sample water areas at different positions.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-tapping sampling device for water quality testing, comprising a support plate (1), characterized in that: The upper end of the support plate (1) is fixedly connected to a support frame (3), and a range sampling structure is arranged on the support frame (3). The range sampling structure comprises a mounting plate (8), and a sampling tube (11) is arranged on the mounting plate (8), which can rotate in a range and whose radius of rotation can be adjusted according to the area of ​​the water area, and the diving depth of the sampling tube (11) changes in an elliptical shape during the circular rotation. The mounting plate (8) is provided with a pumping and pressing assembly connected to a pipeline of the sampling tube (11), and the pumping and pressing assembly comprises a liquid outlet pipe (29). A receiving plate (34) is slidably connected to the mounting plate (8), and a plurality of storage tanks (33) corresponding to the liquid outlet pipe (29) are provided on the receiving plate (34).

2. A self-tapping sampling device for water quality detection according to claim 1, characterized in that: The range sampling structure further comprises a first motor (13) arranged at the bottom of the support plate (1); an output end of the first motor (13) is fixedly connected to a driving bevel gear (14); the driving bevel gear (14) is meshed with a driven bevel gear (15); a rotating column (16) rotatably connected to the support plate (1) is arranged on the driven bevel gear (15); an upper end of the rotating column (16) is fixedly connected to a rotating plate (4); an upper end of the rotating plate (4) is fixedly connected to a frame plate (12); a third sliding block (19) is slidably connected to the inner wall of the frame plate (12); a screw barrel (36) is fixedly connected to the inner wall of the third sliding block (19); a rotating column (16) is rotatably connected to the frame plate (12); A screw rod (18) is threadedly connected to the screw barrel (36); a latch pin (20) is disposed at the upper end of the third slider (19); a pair of second sliders (6) are disposed on the support frame (3); a second slider (7) is slidably connected to the second slider (6); a first slider (24) is disposed at the upper end of the second slider (7); both ends of the first slider (24) are slidably connected to the first slider (5); one end of each of the first sliders (5) is fixedly connected to the mounting plate (8); the other end of each of the first sliders (5) is fixedly connected to a fixing block (21); and a pin rod (22) rotatably connected to the latch pin (20) is disposed on the fixing block (21).

3. A self-tapping sampling device for water quality detection according to claim 2, characterized in that: The upper end of the support frame (3) is fixedly connected to a fixed support plate (37), a first rotating shaft column (23) capable of rotating is arranged on the fixed support plate (37), a towing line (9) is installed on the first rotating shaft column (23), a second rotating shaft column (25) corresponding to the first rotating shaft column (23) is arranged on the mounting plate (8), the towing line (9) penetrates the inner wall of the second rotating shaft column (25), a gravity block (26) is arranged at the end of the towing line (9), the sampling tube (11) is arranged at the lower end of the gravity block (26), a telescopic tube (10) connected to the sampling tube (11) is arranged at the upper end of the gravity block (26), and the pumping and pressing assembly comprises a water pump (27) arranged on the mounting plate (8), and one end of the water pump (27) is provided with a liquid inlet pipe (28) connected to the telescopic tube (10).

4. A self-tapping sampling device for water quality detection according to claim 1, characterized in that: A second motor (30) is disposed on the mounting plate (8), an output end of the second motor (30) being fixedly connected to a spur gear (32), an upper end of the storage plate (34) being provided with a spur rack (31) meshing with the spur gear (32), and both ends of the storage plate (34) being provided with sliding pins (35) slidably connected to the inner wall of the mounting plate (8).

5. A self-tapping sampling device for water quality detection according to claim 1, characterized in that: A plurality of universal wheels (2) are respectively provided at the lower ends of the support plates (1).

6. A self-tapping sampling device for water quality detection according to claim 3, characterized in that: The gravity block (26) is in the shape of a disk, and the disk diameter of the gravity block (26) is larger than the spiral diameter of the telescopic tube (10).

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