Portable water quality sampling equipment for spot check

Abstract

The utility model discloses water quality sampling equipment convenient to carry, and belongs to the technical field of water quality detection.The water quality sampling equipment comprises a sampling barrel, a fixing plate is fixed to the outer side of the sampling barrel, a driving mechanism is fixedly installed at the bottom of a top plate, and a piston rod penetrates through the top of the inner side of the sampling barrel; the bottom of the piston is movably connected with a shear type structure, the bottom of the shear type structure is movably connected with a transverse plate, the bottom of the transverse plate is fixedly connected with a sample storage barrel, and an annular baffle is fixedly mounted at the upper end of the outer side of the sample storage barrel. The piston enables the sample storage barrel to move in the opposite direction through a shear type structure, an annular baffle blocks and dredges a water inlet hole in the moving process, the sample storage barrel can collect samples, a filter screen and a filter plate conduct double filtration on the samples, and then the water sample detection result of workers in the later period is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field, concretely is a kind of water quality spot check sampling equipment convenient to carry. BACKGROUND

[0002] Chinese patent publication No. CN215178861U discloses a water quality monitoring sampling device, comprising a sampling cylinder and a sliding plate. The sliding plate is in sliding connection with the outer side wall of the sliding cylinder and moves along the axial direction of the sliding cylinder. The bottom of the sliding cylinder is provided with a limiting block, which limits the downward movement distance of the sliding plate by abutting. A plurality of partitions are provided in the sampling cylinder, which divide the internal cavity of the sampling cylinder into a plurality of vertically arranged cavities. First water-permeable holes are formed in the side walls of the plurality of cavities, and the distance between adjacent first water-permeable holes is greater than the diameter of the first water-permeable holes. A plurality of second water-permeable holes are formed in the sliding plate, and the positions of the plurality of second water-permeable holes correspond to the positions of the plurality of first water-permeable holes. The sampling device realizes the communication and closure of the second water-permeable holes and the first water-permeable holes through the sliding of the sliding plate.

[0003] The water quality monitoring sampling device can sample water of various depths, and has a simple structure and convenient operation, improving the efficiency of water sampling. However, due to the presence of impurities in water, impurities enter the sampling cylinder through the water-permeable holes when the device is used for sampling, affecting the sampling results. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a water quality spot check sampling equipment convenient to carry, which solves the problems raised in the background art.

[0005] The application embodiment provides a water quality spot check sampling equipment convenient to carry, which comprises a sampling cylinder. A fixed plate is fixedly installed on the outer side of the sampling cylinder. A support column is fixedly installed on the top of each corner of the fixed plate. A top plate is fixedly installed on the top of the support column. A driving mechanism is fixedly installed on the bottom of the top plate. A piston rod is penetrated through the inner top of the sampling cylinder. A piston is fixedly installed on the lower end of the piston rod. A scissor structure is movably connected to the bottom of the piston. A horizontal plate is movably connected to the bottom of the scissor structure. A sample storage cylinder is fixedly connected to the bottom of the horizontal plate. An annular baffle is fixedly installed on the outer upper end of the sample storage cylinder. A filter plate is fixedly installed on the inner wall upper end of the sample storage cylinder.

[0006] By adopting the above technical scheme, the driving mechanism drives the piston rod and the piston to move upward, the piston then drives the scissor structure to move the sample storage cylinder in the opposite direction, and the annular baffle shields the water inlet hole, so that external water flows into the sampling cylinder, and the sample storage cylinder can collect samples. The filter plate performs secondary filtration on the samples, thereby improving the detection results of the water samples by the later staff.

[0007] Optionally, the driving mechanism comprises a motor, an output shaft of the motor is fixedly provided with a driving gear, both sides of the top of the sampling cylinder are fixedly provided with a guide rod and a threaded rod respectively, an outer wall of the threaded rod is threadedly connected with a moving block, the moving block is fixedly connected with the top of the piston rod, the moving block is slidably connected with the guide rod, the top of the threaded rod penetrates through the top plate and is fixedly provided with a driven gear, and the driven gear is meshedly connected with the driving gear.

[0008] By adopting the above technical scheme, the motor drives the threaded rod to move through the meshing of the driven gear and the driving gear, the threaded rod then drives the moving block to move, and the moving block then drives the piston rod and the piston to move, so that the negative pressure is formed in the sampling cylinder.

[0009] Optionally, the inner wall of the sampling cylinder is fixedly provided with symmetrically arranged fixing plates, the fixing plates are provided with movable grooves, the movable grooves are matched with the scissors structure, the bottom of the sampling cylinder is provided with a circular hole, and the circular hole is matched with the sample storage cylinder.

[0010] By adopting the above technical scheme, the scissors structure drives the sample storage cylinder to move synchronously when stretching and retracting, so that the annular baffle moves, the annular baffle moves downward during sampling until the water inlet hole leaks, the negative pressure is formed in the sampling cylinder due to the synchronous upward movement of the piston, so that the external water flow enters the sampling cylinder and continues to flow into the sample storage cylinder; when the sampling is completed, the annular baffle moves upward to cover the water inlet hole, so as to prevent the external water flow from entering the sampling cylinder again, and avoid that other water layers cause inaccurate detection results.

[0011] Optionally, a plurality of equidistantly distributed water inlet holes are formed in the bottom of the sampling cylinder in the circumferential direction, and a filter screen is fixedly installed in each water inlet hole.

[0012] By adopting the above technical scheme, the water inlet holes are used for water inlet, and the filter screen is responsible for preliminary filtering of water near the water inlet holes, so as to prevent the water inlet holes from being blocked due to contact of large floating debris on the water surface with the water inlet holes.

[0013] Optionally, the scissors structure comprises two first connecting rods which are hingedly connected at the top, a second connecting rod is hingedly connected to the lower end of the first connecting rod through a pin shaft, the pin shaft is matched with the movable groove, and the second connecting rod is hingedly connected with the horizontal plate through a hinge.

[0014] By adopting the above technical scheme, when the scissors structure stretches and retracts, the pin shaft moves in the inner side of the movable groove, so that the second connecting rod drives the horizontal plate to move.

[0015] Optionally, the bottom of the sample storage cylinder is fixedly connected with a drain pipe, and a valve is arranged in the drain pipe.

[0016] By adopting the technical scheme, the valve is opened, and the collected sample can be discharged through the drain pipe, so that the sample is conveniently taken out.

[0017] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0018] 1、The technical scheme of the present application is provided with a driving mechanism, a piston rod, a piston, an annular baffle and a sample storage cylinder, the driving mechanism is responsible for driving the piston rod and the piston to move upward, the piston in turn drives the scissor structure to move the sample storage cylinder in the opposite direction, when sampling, the annular baffle moves downward until the water inlet hole leaks, because the piston moves upward synchronously, a negative pressure is formed in the sampling cylinder, so that the external water flow enters the sampling cylinder and continues to flow into the sample storage cylinder; when the sampling is completed, the annular baffle moves upward to cover the water inlet hole, thereby preventing the external water flow from entering the sampling cylinder again, avoiding other water layers from entering the sample storage cylinder to cause inaccurate detection results, so that the external water flow enters the sampling cylinder, the sample storage cylinder can collect the sample, and the filter plate performs secondary filtration on the sample, thereby improving the detection results of the water sample by the later staff.

[0019] 2、The technical scheme of the present application is provided with a filter screen, water enters through a plurality of water inlet holes, and the filter screen is responsible for preliminary filtering of water near the water inlet hole, preventing the situation that large floating debris on the water surface contacts the water inlet hole to cause the water inlet hole to be blocked. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the present application;

[0023] Figure 3 It is Figure 2 It is an enlarged schematic view of the structure at A.

[0024] In the figure: 1, sampling cylinder; 2, first fixed plate; 3, support column; 4, top plate; 5, driving mechanism; 51, motor; 52, driving gear; 53, guide rod; 54, threaded rod; 55, moving block; 56, driven gear; 6, piston rod; 7, piston; 8, scissor structure; 81, first connecting rod; 82, second connecting rod; 83, pin shaft; 9, cross plate; 10, sample storage cylinder; 11, annular baffle; 12, filter plate; 13, second fixed plate; 131, movable groove; 14, water inlet hole; 15, filter screen; 16, drain pipe. DETAILED DESCRIPTION

[0025] Please refer toFigures 1-3 The utility model provides a kind of technical scheme: a water quality spot check sampling equipment convenient to carry, including sampling cylinder 1, the outside of sampling cylinder 1 is fixedly installed with first fixed plate 2, first fixed plate 2's top four corners are fixedly installed with pillar 3, the top of pillar 3 is fixedly installed with top plate 4, the bottom of top plate 4 is fixedly installed with drive mechanism 5, the inside top of sampling cylinder 1 is equipped with piston rod 6, the lower end of piston rod 6 is fixedly installed with piston 7, the bottom of piston 7 is movably connected with shear structure 8, the bottom of shear structure 8 is movably connected with horizontal plate 9, the bottom of horizontal plate 9 is fixedly connected with sample storage cylinder 10, the outside upper end of sample storage cylinder 10 is fixedly installed with annular baffle 11, the inner wall of sample storage cylinder 10 is fixedly installed with filter plate 12 on upper end.

[0026] When using, drive mechanism 5 is responsible for driving piston rod 6 and piston 7 to move upwards, piston 7 then drives shear structure 8 to make sample storage cylinder 10 move in opposite direction, annular baffle 11 is responsible for shielding water inlet hole 14, so that external water flow enters sampling cylinder 1, so that sample storage cylinder 10 can collect sample, filter plate 12 carries out secondary filtration to sample, and then improve the detection result of water sample for later staff.

[0027] In some technical solutions, for example, Figure 1 As shown, drive mechanism 5 includes motor 51, the output shaft of motor 51 is fixedly installed with driving gear 52, the top of sampling cylinder 1 is fixedly installed with guide rod 53 and threaded rod 54 respectively, threaded rod 54 is threadedly connected with moving block 55, the top of moving block 55 is fixedly connected with piston rod 6, moving block 55 is slidably connected with guide rod 53, the top of threaded rod 54 penetrates through top plate 4 and is fixedly installed with driven gear 56, driven gear 56 is meshingly connected with driving gear 52.

[0028] When using, motor 51 drives threaded rod 54 to move through driven gear 56 and driving gear 52 meshing, threaded rod 54 then drives moving block 55 to move, moving block 55 then drives piston rod 6 and piston 7 to move, so that negative pressure is formed in sampling cylinder 1.

[0029] In some technical solutions, for example, Figure 1 As shown, the inner wall of sampling cylinder 1 is fixedly installed with symmetrically arranged second fixed plate 13, second fixed plate 13 is provided with movable slot 131, movable slot 131 is matched with shear structure 8, the bottom of sampling cylinder 1 is provided with circular hole, and the circular hole is matched with sample storage cylinder 10.

[0030] In use, the scissor structure 8 drives the sample storage cylinder 10 to move synchronously when stretching and retracting, and further drives the annular baffle 11 to move, when sampling, the annular baffle 11 moves downward until the water inlet hole 14 leaks, because the piston moves upward synchronously, a negative pressure is formed in the sampling cylinder 1, so that external water flow enters the sampling cylinder 1 and continues to flow into the sample storage cylinder 10; when sampling is completed, the annular baffle 11 moves upward to cover the water inlet hole 14, so as to prevent external water flow from entering the sampling cylinder 1 again, and avoid that other water layers cause inaccurate detection results.

[0031] In some technical solutions, for example, Figure 1 As shown, the bottom of the sampling cylinder 1 is provided with a plurality of equidistantly distributed water inlet holes 14, and the water inlet hole 14 is fixedly provided with a filter screen 15.

[0032] In use, water is introduced through the plurality of water inlet holes 14, and the filter screen 15 is responsible for preliminary filtering of water near the water inlet hole 14, so as to prevent large floating debris on the water surface from contacting the water inlet hole 14 to cause the water inlet hole 14 to be blocked.

[0033] In some technical solutions, for example, Figure 1 As shown, the scissor structure 8 includes two first connecting rods 81 hingedly connected at the top, the lower end of the first connecting rod 81 is hingedly connected with a second connecting rod 82 through a pin shaft 83, the pin shaft 83 is matched with the movable groove 131, and the second connecting rod 82 is hingedly connected with the horizontal plate 9 through a hinge.

[0034] In use, when the scissor structure 8 stretches and retracts, the pin shaft 83 moves in the inner side of the movable groove 131, so that the second connecting rod 82 drives the horizontal plate 9 to move.

[0035] In some technical solutions, for example, Figure 1 As shown, the bottom of the sample storage cylinder 10 is fixedly connected with a drain pipe 16, and the drain pipe 16 is provided with a valve.

[0036] In use, the valve is opened, so that the collected sample can be discharged through the drain pipe 16, and the sample is conveniently taken out;

[0037] Working principle: the driving mechanism 5 is responsible for driving the piston rod 6 and the piston 7 to move upwards, the specific process is: the motor 51 drives the threaded rod 54 to move through the meshing of the driven gear 56 and the driving gear 52, then the threaded rod 54 drives the moving block 55 to move, the moving block 55 drives the piston rod 6 and the piston 7 to move, so that the negative pressure is formed in the sampling cylinder 1, then the piston 7 drives the scissor structure 8 to move in the opposite direction, when the scissor structure 8 extends and retracts, the pin shaft 83 moves in the inside of the movable groove 131, so that the second connecting rod 82 drives the horizontal plate 9 to move, the horizontal plate 9 drives the sample storage cylinder 10 and the annular baffle 11 to move downwards, until the water inlet hole 14 leaks, because the piston moves upwards synchronously, the negative pressure is formed in the sampling cylinder 1, so that the external water flow enters the sampling cylinder 1, and continues to flow into the sample storage cylinder 10; when the sampling is completed, the annular baffle 11 moves upwards, covers the water inlet hole 14, so as to prevent the external water flow from entering the sampling cylinder 1 again, avoid other water layers from entering the sample storage cylinder 10 to cause the detection result to be inaccurate, so that the external water flow enters the sampling cylinder 1, so that the sample storage cylinder 10 can collect the sample, the filter screen 15 is responsible for the preliminary filtration of the water near the water inlet hole 14, to prevent the large floating debris on the water surface from contacting with the water inlet hole 14 to cause the water inlet hole 14 to be blocked, the filter plate 12 performs secondary filtration on the sample, so as to improve the detection result of the water sample by the later staff.

Claims

1. A portable water quality spot-check sampling device comprising a sampling cylinder (1), characterized in that: The outer side of the sampling cylinder (1) is fixedly installed with a first fixed plate (2), the top of the first fixed plate (2) is fixedly installed with a support column (3), the top of the support column (3) is fixedly installed with a top plate (4), the bottom of the top plate (4) is fixedly installed with a driving mechanism (5), the inner top of the sampling cylinder (1) is penetrated with a piston rod (6), the lower end of the piston rod (6) is fixedly installed with a piston (7), the bottom of the piston (7) is movably connected with a scissor structure (8), the bottom of the scissor structure (8) is movably connected with a horizontal plate (9), the bottom of the horizontal plate (9) is fixedly connected with a sample storage cylinder (10), the outer side of the upper end of the sample storage cylinder (10) is fixedly installed with a ring baffle (11), the inner wall of the upper end of the sample storage cylinder (10) is fixedly installed with a filter plate (12).

2. The portable water quality spot-check sampling device of claim 1, wherein, The driving mechanism (5) comprises a motor (51), the output shaft of the motor (51) is fixedly installed with a driving gear (52), the top of the sampling cylinder (1) is fixedly installed with a guide rod (53) and a threaded rod (54) on the two sides respectively, the outer wall of the threaded rod (54) is threadedly connected with a moving block (55), the top of the moving block (55) is fixedly connected with the piston rod (6), the moving block (55) is slidably connected with the guide rod (53), the top of the threaded rod (54) penetrates through the top plate (4) and is fixedly installed with a driven gear (56), the driven gear (56) is meshedly connected with the driving gear (52).

3. The portable water quality spot-check sampling apparatus of claim 1, wherein, The inner wall of the sampling cylinder (1) is fixedly installed with symmetrically arranged second fixed plates (13), the second fixed plates (13) are provided with movable grooves (131), the movable grooves (131) are matched with the scissor structure (8), and the bottom of the sampling cylinder (1) is provided with a circular hole matched with the sample storage cylinder (10).

4. The portable water quality spot-check sampling apparatus of claim 1, wherein, The outer bottom of the sampling cylinder (1) is circumferentially provided with a plurality of equidistantly distributed water inlet holes (14), and the water inlet holes (14) are fixedly installed with filter screens (15).

5. The portable water quality grab sampling apparatus of claim 1, wherein, The scissor structure (8) comprises two first connecting rods (81) which are hingedly connected at the top, the lower end of the first connecting rod (81) is hingedly connected with a second connecting rod (82) through a pin shaft (83), the pin shaft (83) is matched with the movable groove (131), and the second connecting rod (82) is hingedly connected with the horizontal plate (9) through a hinge.

6. The portable water quality grab sampling apparatus of claim 1, wherein, The bottom of the sample storage cylinder (10) is fixedly connected with a drain pipe (16), and the drain pipe (16) is provided with a valve.

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