Water environment stratified sampling device

Abstract

The utility model relates to the technical field of environment detection, in particular to a water environment stratified sampling device which comprises a sampling barrel, a plurality of partition plates are evenly and fixedly arranged in the sampling barrel, the interior of the sampling barrel is divided into a plurality of sampling cavities through the partition plates, sampling holes are formed in the upper ends of the side walls of the sampling cavities, and a rectangular frame is arranged outside the sampling barrel. Rotating shafts are fixedly arranged in the middles of the upper end and the lower end of the sampling barrel, the ends, deviating from each other, of the two rotating shafts are rotationally connected with the inner side wall of the rectangular frame through rolling bearings, a transmission mechanism is arranged on the rotating shaft located on the upper side, sliding holes are formed in the positions, corresponding to the sampling holes, of the inner wall of one side of the rectangular frame, and sealing mechanisms are arranged in the sliding holes. According to the water sampling device, water at different depths can be conveniently sampled at the same time, the sampling efficiency is high, different water samples can be prevented from being mixed, and the sampling accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to a water environment stratified sampling device. Background Art

[0002] Water environment refers to the space where water is formed, distributed and transformed in nature. It refers to the natural environment surrounding human space and water bodies that can directly or indirectly affect human life and development, and the overall natural factors and related social factors of its normal function. Some also refer to the space where relatively stable natural water bodies with land as their boundaries are located.

[0003] With existing technology, only water of a single depth can be sampled at a time. Sampling water at different depths requires multiple samplings, which results in low sampling efficiency. In addition, different water samples are easily mixed, resulting in low sampling accuracy. Therefore, we have introduced a water environment stratified sampling device. Utility Model Content

[0004] The purpose of the utility model is to provide a water environment stratified sampling device, which is convenient for sampling water at different depths at the same time, has high sampling efficiency, can avoid mixing of different water samples, and improves the accuracy of sampling, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water environment stratified sampling device comprises a sampling barrel, wherein a plurality of partitions are evenly fixedly arranged inside the sampling barrel, the interior of the sampling barrel is divided into a plurality of sampling chambers by the plurality of partitions, the upper ends of the side walls of the plurality of sampling chambers are provided with sampling holes, a rectangular frame is arranged outside the sampling barrel, a rotating shaft is fixedly arranged at the middle of the upper and lower ends of the sampling barrel, the two ends of the rotating shafts which are away from each other are rotatably connected to the inner wall of the rectangular frame by rolling bearings, a transmission mechanism is arranged on the rotating shaft on the upper side, a sliding hole is arranged on the inner wall of one side of the rectangular frame at positions corresponding to the positions of the plurality of sampling holes, and a sealing mechanism is arranged inside the sliding hole.

[0007] Preferably, the transmission mechanism includes a worm, which is horizontally arranged on the front side of the rotating shaft. Both ends of the worm are rotatably connected to the inner wall of the rectangular frame through rolling bearings. A worm wheel is fixed to the shaft wall of the rotating shaft, and the worm is meshed with the worm wheel.

[0008] Preferably, the sealing mechanism includes a sliding rod, which is slidably arranged in a sliding hole, and both ends of the sliding rod extend to the outside of the sliding hole. A sealing block is fixedly provided at one end of the sliding rod located in the rectangular frame, and a spring is movably sleeved at the rod wall of the sliding rod located between the rectangular frame and the sealing block.

[0009] Preferably, a pull frame is fixedly provided on one end of the sliding rod located outside the rectangular frame.

[0010] Preferably, the side of the sealing block away from the slide rod is arranged in an arc shape, the outer opening of the sampling hole is provided with an arc groove matching with the sealing block, and the side wall of the arc groove is fixedly provided with a rubber ring at the sampling hole.

[0011] Preferably, one end of the worm extends outside the rectangular frame and is fixedly provided with a rocker.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The water environment stratified sampling device comprises a rectangular frame, a sampling tube, a sampling cavity, a partition, a rocker, a worm, a rotating shaft, a worm wheel, a sliding rod, a sealing block, a rubber ring, a spring and a pulling frame. After the upper end of the rectangular frame is grasped by one hand and the device is placed under a specified water surface, the rocker is rotated clockwise, the rocker drives the worm to rotate, the worm drives the rotating shaft to rotate through the worm wheel, the rotating shaft drives the sampling tube to rotate, a plurality of sealing blocks are displaced from the arc groove and move to the outside of the arc groove at the same time, water samples of different depths enter the sampling cavity through a plurality of sampling holes, the rocker is rotated counterclockwise, after a plurality of sealing blocks correspond to the positions of the annular grooves, the spring pushes the sealing block to abut against the rubber ring in the arc groove, namely, sampling is completed, the device is taken out, the pulling frame is pulled, the pulling frame drives the sealing block to squeeze the spring through the sliding rod, at this time, the device can be tilted to pour out the water sample in the corresponding sampling cavity, so that water of different depths can be sampled at the same time, the sampling efficiency is high, and mixing of different water samples can be avoided, thereby improving the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the structure of a water environment stratified sampling device.

[0015] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the figure.

[0016] Figure 3 for Figure 1 An enlarged schematic diagram of the local B in the middle.

[0017] In the figure: 1, rectangular frame; 2, sampling tube; 3, sampling chamber; 4, partition; 5, rocker; 6, worm; 7, rotating shaft; 8, worm wheel; 9, sliding rod; 10, sealing block; 11, rubber ring; 12, spring; 13, pull frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 , the utility model provides a technical solution:

[0020] A water environment stratified sampling device comprises a sampling tube 2, wherein a plurality of partitions 4 are evenly fixedly arranged inside the sampling tube 2, the interior of the sampling tube 2 is divided into a plurality of sampling chambers 3 by the plurality of partitions 4, the upper ends of the side walls of the plurality of sampling chambers 3 are provided with sampling holes, a rectangular frame 1 is arranged outside the sampling tube 2, a rotating shaft 7 is fixedly arranged in the middle of the upper and lower ends of the sampling tube 2, the ends of the two rotating shafts 7 which are separated from each other are rotatably connected to the inner wall of the rectangular frame 1 through rolling bearings, a transmission mechanism is arranged on the rotating shaft 7 on the upper side, a sliding hole is arranged on the inner wall of one side of the rectangular frame 1 at positions corresponding to the positions of the plurality of sampling holes, and a sealing mechanism is arranged inside the sliding hole.

[0021] The transmission mechanism includes a worm 6, which is horizontally arranged on the front side of the rotating shaft 7. Both ends of the worm 6 are rotatably connected to the inner wall of the rectangular frame 1 through rolling bearings. A worm wheel 8 is fixed to the shaft wall of the rotating shaft 7, and the worm 6 is meshed with the worm wheel 8.

[0022] The sealing mechanism includes a slide rod 9, which is slidably arranged in the slide hole. Both ends of the slide rod 9 extend to the outside of the slide hole. A sealing block 10 is fixedly arranged at one end of the slide rod 9 located in the rectangular frame 1. A spring 12 is movably sleeved at the rod wall of the slide rod 9 located between the rectangular frame 1 and the sealing block 10.

[0023] A pull frame 13 is fixedly provided at one end of the slide bar 9 located outside the rectangular frame 1 , and the pull frame 13 facilitates pulling the slide bar 9 .

[0024] The side of the sealing block 10 away from the sliding rod 9 is set to be arc-shaped, and the outer opening of the sampling hole is provided with an arc-shaped groove matching with the sealing block 10. The side wall of the arc-shaped groove is fixedly provided with a rubber ring 11 at the sampling hole, and the rubber ring 11 improves the sealing between the sealing block 10 and the arc-shaped groove.

[0025] One end of the worm 6 passes through the outside of the rectangular frame 1 and is fixed with a rocker 5 , which is convenient for rotating the worm 6 .

[0026] When in use, one hand grasps the upper end of the rectangular frame 1, puts the device under the specified water surface, and then rotates the rocker 5 clockwise, the rocker 5 drives the worm 6 to rotate, the worm 6 drives the shaft 7 to rotate through the worm gear 8, and the shaft 7 drives the sampling tube 2 to rotate, and multiple sealing blocks 10 are dislocated with the arc groove and move to the outside of the arc groove. Water samples of different depths enter the sampling cavity 3 through multiple sampling holes, and the rocker 5 is rotated counterclockwise. After the multiple sealing blocks 10 correspond to the positions of the annular grooves, the spring 12 pushes the sealing block 10 to abut against the rubber ring 11 in the arc groove, that is, the sampling is completed. After taking out the device, after pulling the pull frame 13, the pull frame 13 drives the sealing block 10 to squeeze the spring 12 through the slide rod 9. At this time, the device can be tilted to pour out the water sample in the corresponding sampling cavity 3, which is convenient for sampling water of different depths at the same time, with high sampling efficiency, and can avoid mixing of different water samples, thereby improving the accuracy of sampling.

[0027] 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 water environment stratified sampling device, comprising a sampling tube (2), characterized in that: A plurality of partitions (4) are evenly fixedly arranged inside the sampling tube (2), and the interior of the sampling tube (2) is divided into a plurality of sampling chambers (3) by the plurality of partitions (4). The upper ends of the side walls of the plurality of sampling chambers (3) are provided with sampling holes. A rectangular frame (1) is arranged outside the sampling tube (2), and a rotating shaft (7) is fixedly arranged in the middle of the upper and lower ends of the sampling tube (2). The two ends of the rotating shafts (7) that are separated from each other are rotatably connected to the inner wall of the rectangular frame (1) through rolling bearings. A transmission mechanism is arranged on the rotating shaft (7) located on the upper side. A sliding hole is arranged on the inner wall of one side of the rectangular frame (1) at a position corresponding to the positions of the plurality of sampling holes, and a sealing mechanism is arranged inside the sliding hole.

2. A water environment stratified sampling device according to claim 1, characterized in that: The transmission mechanism comprises a worm (6), the worm (6) being horizontally arranged on the front side of a rotating shaft (7), both ends of the worm (6) being rotatably connected to the inner wall of the rectangular frame (1) via rolling bearings, a worm wheel (8) being fixedly arranged on the shaft wall of the rotating shaft (7), and the worm (6) being meshed with the worm wheel (8).

3. A water environment stratified sampling device according to claim 1, characterized in that: The sealing mechanism comprises a sliding rod (9), the sliding rod (9) being slidably arranged in a sliding hole, both ends of the sliding rod (9) extending to the outside of the sliding hole, a sealing block (10) being fixedly arranged at one end of the sliding rod (9) located in the rectangular frame (1), and a spring (12) being movably sleeved at a rod wall of the sliding rod (9) located between the rectangular frame (1) and the sealing block (10).

4. A water environment stratified sampling device according to claim 3, characterized in that: A pull frame (13) is fixedly provided at one end of the slide rod (9) located outside the rectangular frame (1).

5. A water environment stratified sampling device according to claim 3, characterized in that: The side of the sealing block (10) away from the slide rod (9) is arranged in an arc shape, the outer opening of the sampling hole is provided with an arc groove matching with the sealing block (10), and the side wall of the arc groove is fixedly provided with a rubber ring (11) at the sampling hole.

6. A water environment stratified sampling device according to claim 2, characterized in that: One end of the worm (6) passes through the outside of the rectangular frame (1) and is fixedly provided with a rocker (5).

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