Sampling device for lake water quality detection

Abstract

The utility model relates to the field of water conservancy projects, in particular to a sampling device for lake water quality detection. The utility model provides a sampling device for lake water quality detection, which can quickly collect and sample water at different depths of a lake at the same time, can filter impurities in the water, and improves the sampling quality. A sampling device for lake water quality detection comprises a support frame, a gear rotating shaft, a rotating gear, an operating rod and the like, two gear rotating shafts are rotationally connected to the supporting frame, rotating gears are fixedly connected to the two gear rotating shafts respectively, the two rotating gears are meshed, and operating rods are fixedly connected to the two rotating gears respectively. The two sampling pipes are driven to sink into the water bottom by rotating the hand rocker, so that the two sampling pipes are positioned at different depths in the water, and water samples can be quickly collected at the different depths in the water bottom at the same time.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy projects, in particular to a sampling device for detecting lake water quality. Background Art

[0002] Water quality samplers are designed to help people understand the types, quantities and distribution of various chemical and biological substances in water. By analyzing and monitoring water samples, the pollution of water bodies and the changing trends of water quality can be evaluated. Water quality sampling plays an important role in water resource protection.

[0003] Since the location and temperature of the lake can cause great differences in water quality, it is necessary to take samples of water at different depths for comparative analysis during the sampling process. However, the existing water quality sampling devices are not convenient for sampling water at different depths at the same time. After the water samples are obtained, impurities in them need to be manually filtered, which is a cumbersome operation. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide a sampling device for lake water quality detection, which can quickly collect and sample water at different depths of the lake at the same time, and can filter impurities in the water to improve the sampling quality.

[0005] The technical implementation scheme of the utility model is: a sampling device for lake water quality detection, including a support frame, a gear rotating shaft, a rotating gear, an operating rod, a rotating bar, a fixed shaft, a hand crank, a supporting sliding rod, a unilateral fixed rod, a sampling tube, a tube cover, a spring and a water blocking plug. Two gear rotating shafts are rotatably connected to the support frame, and rotating gears are respectively fixedly connected to the two gear rotating shafts. The two rotating gears are meshed, and the two rotating gears are respectively fixedly connected to the operating rods. A number of rotating bars are respectively rotatably connected to the two operating rods, and a number of fixed shafts are rotatably connected between the two rotating bars. A hand crank is fixedly connected to one of the gear rotating shafts, and two supporting sliding rods are slidably connected between the two rotating bars. A unilateral fixed rod is slidably connected between the two rotating bars, and sampling tubes are fixedly connected to the two supporting sliding rods. The unilateral fixed rod contacts the sampling tube, and the tops of the two sampling tubes are rotatably connected to tube covers, and springs are connected between the inner walls of the sampling tubes and the tube covers, and water blocking plugs are plugged at the bottom of the sampling tubes.

[0006] Furthermore, a square groove is provided on the support frame.

[0007] Furthermore, the plurality of rotating bars are cross-telescopic structures.

[0008] Furthermore, a filter screen is included, and the insides of the two sampling tubes are fixedly connected with the filter screen.

[0009] The beneficial effects of the utility model are as follows: 1. The utility model drives the rotating bar to descend to the bottom of the water by rotating the hand crank, and drives the two sampling tubes to sink to the bottom of the water at the same time, so that the two sampling tubes are located at different depths in the water, and the rotating bar extends left and right to push the single-sided fixed rod to swing the tube cover open, so that water samples can be quickly collected at different depths of the bottom of the water at the same time.

[0010] 2. The filter screen inside the sampling tube of the utility model can automatically filter out impurities and retain them on the filter screen after the water sample is collected on shore, saving filtering time and thus improving the quality of the water sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0012] Figure 2 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0013] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0014] Figure 4 It is a schematic diagram of a partially split three-dimensional structure of the utility model.

[0015] Figure numbers: 1. Support frame, 2. Gear rotating shaft, 3. Rotating gear, 4. Operating lever, 5. Rotating bar, 6. Fixed shaft, 7. Hand crank, 8. Support sliding rod, 9. Single-sided fixed rod, 10. Sampling tube, 11. Tube cover, 12. Spring, 13. Water blocking plug, 14. Filter. DETAILED DESCRIPTION

[0016] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0017] Embodiment 1: A sampling device for lake water quality detection, such as Figure 1-Figure 4As shown, it includes a support frame 1, a gear rotating shaft 2, a rotating gear 3, an operating rod 4, a rotating bar 5, a fixed shaft 6, a hand crank 7, a supporting sliding rod 8, a single-sided fixed rod 9, a sampling tube 10, a tube cover 11, a spring 12 and a water blocking plug 13. The support frame 1 is rotatably connected to two gear rotating shafts 2, and the two gear rotating shafts 2 are respectively connected to rotating gears 3 through flat keys. The two rotating gears 3 are meshed, and the two rotating gears 3 are respectively connected to operating rods 4 by welding. The two operating rods 4 are respectively rotatably connected to a plurality of rotating bars 5. The two rotating There are several fixed shafts 6 rotatably connected between the moving bars 5, a hand crank 7 is connected to one of the gear rotating shafts 2 by bolts, two supporting sliding rods 8 are slidably connected between the two rotating bars 5, a single-sided fixed rod 9 is slidably connected between the two rotating bars 5, sampling tubes 10 are connected to the two supporting sliding rods 8 by bolts, the single-sided fixed rod 9 is in contact with the sampling tube 10, tube covers 11 are rotatably connected to the tops of the two sampling tubes 10, a spring 12 is connected between the inner wall of the sampling tube 10 and the tube cover 11, and a water-blocking plug 13 is plugged at the bottom of the sampling tube 10.

[0018] A square groove is formed on the support frame 1, and two rotating bars (5) pass through the square groove.

[0019] The two supporting sliding rods (8) are arranged in a staggered manner.

[0020] A filter screen 14 is also included, and the insides of the two sampling tubes 10 are connected to the filter screen 14 by welding.

[0021] When it is necessary to sample water at different depths in the lake, the staff first fixes the support frame 1 on the boat, and then turns the hand crank 7. The rotation of the hand crank 7 will drive one of the gear rotating shafts 2 to rotate, and the rotation of one of the gear rotating shafts 2 will drive one of the rotating gears 3 to rotate, and the rotation of one of the rotating gears 3 will drive the other rotating gear 3 to rotate, and the rotation of the two rotating gears 3 will respectively drive the two operating levers 4 to rotate together, and the rotation of the two operating levers 4 will drive the two rotating bars 5 to extend downward and enter the bottom of the water. When the two rotating bars 5 drop to the bottom of the water, the two rotating bars 5 no longer move downward, and the continued rotation of the operating lever 4 will cause the two rotating bars 5 to extend left and right, and respectively push the two unilateral fixed rods 9 to slide, and the sliding of the unilateral fixed rod 9 will contact the pipe cover 11 and push the pipe cover 11 to swing upward, the spring 12 is stretched, and the pipe cover 11 is pulled upward. The upward swing of the cover 11 will open the sampling tube 10, and water will enter the sampling tube 10. Since the two sampling tubes 10 are at different depths, the collected water will also be different. Therefore, water at different depths can be sampled at the same time. After the water in the sampling tube 10 is collected, the worker can rotate the hand crank 7 in the opposite direction to make the two rotating bars 5 shrink upward and shrink left and right. The left and right shrinkage of the rotating bar 5 will drive the unilateral fixed rod 9 to move in the opposite direction and disengage from the tube cover 11. The reset of the spring 12 will drive the tube cover 11 to swing downward, covering the sampling tube 10 to prevent the water in the sampling tube 10 from spilling out. In this way, water samples at different depths can be quickly collected. When the sampled water needs to be taken out, the staff unplugs the water blocking plug 13, and the water in the sampling tube 10 will flow out. Then the staff plugs the water blocking plug 13 back into the sampling tube 10.

[0022] The filter screen 14 will filter out impurities in the water, and the impurities will be retained on the filter screen 14, thereby making the water flowing out from the lower part of the sampling tube 10 clearer and free of impurities.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sampling device for lake water quality detection, characterized in that it includes The invention comprises a support frame (1), a gear rotating shaft (2), a rotating gear (3), an operating rod (4), a rotating bar (5), a fixed shaft (6), a hand crank (7), a supporting sliding rod (8), a single-sided fixed rod (9), a sampling tube (10), a tube cover (11), a spring (12) and a water blocking plug (13); the support frame (1) is rotatably connected to two gear rotating shafts (2); the two gear rotating shafts (2) are respectively fixedly connected to rotating gears (3); the two rotating gears (3) are meshed; the two rotating gears (3) are respectively fixedly connected to operating rods (4); the two operating rods (4) are respectively rotatably connected to a plurality of rotating bars (5); the two A plurality of fixed shafts (6) are rotatably connected between the rotating bars (5), a hand crank (7) is fixedly connected to one of the gear rotating shafts (2), two supporting sliding rods (8) are slidably connected between the two rotating bars (5), a single-sided fixed rod (9) is slidably connected between the two rotating bars (5), sampling tubes (10) are fixedly connected to the two supporting sliding rods (8), the single-sided fixed rod (9) is in contact with the sampling tube (10), the tops of the two sampling tubes (10) are rotatably connected to tube covers (11), a spring (12) is connected between the inner wall of the sampling tube (10) and the tube cover (11), and a water blocking plug (13) is plugged at the bottom of the sampling tube (10).

2. A sampling device for lake water quality detection according to claim 1, characterized in that: A square groove is formed on the support frame (1), and two rotating bars (5) pass through the square groove.

3. A sampling device for lake water quality detection according to claim 1, characterized in that: The two supporting sliding rods (8) are arranged in a staggered manner.

4. A sampling device for lake water quality detection according to claim 1, characterized in that: A filter screen (14) is also included, and the insides of the two sampling tubes (10) are fixedly connected to the filter screen (14).

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