Water quality parallel sampler

Abstract

The utility model discloses a water quality parallel sampler which comprises a sampling barrel, a first sampling tube and a second sampling tube are arranged at the bottom of the sampling barrel, and the first sampling tube and the second sampling tube are the same in structure; sampling piston mechanisms are arranged in the first sampling pipe and the second sampling pipe; and a synchronous sampling mechanism for driving the two sampling piston mechanisms to synchronously move is arranged at the bottom of the sampling barrel. The synchronous sampling mechanism disclosed by the utility model can drive the two sampling piston mechanisms to synchronously lift, so that the first sampling pipe and the second sampling pipe are connected and disconnected by controlling the sampling piston mechanisms, and parallel sampling of water is realized; and the two bottles of sub-packaged samples are ensured to have better consistency.

Description

Technical Field

[0001] This utility model relates to the field of water quality sampling, specifically to a parallel water sampler. Background Technology

[0002] Existing water samplers collect water samples and then use a bottom switch to place the sample into a sample bottle. When collecting samples such as wastewater, the presence of suspended solids or uneven distribution of pollutants in the water can lead to differences between the two bottles of samples collected sequentially. Using such differing samples as parallel samples for quality control results in inconsistencies, making it impossible to determine whether the inconsistency is due to differences in the samples themselves or poor control of the analytical process. Therefore, it is necessary to propose a parallel water sampler that can guarantee the consistency of the two bottles of samples collected. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a parallel water sampler.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: it includes a sampling bucket, and a first sampling tube and a second sampling tube are provided at the bottom of the sampling bucket. The first sampling tube and the second sampling tube have the same structure. A sampling piston mechanism is provided inside both the first sampling tube and the second sampling tube. A synchronous sampling mechanism is provided at the bottom of the sampling bucket to drive the two sampling piston mechanisms to move synchronously.

[0005] Furthermore, the sampling piston mechanism includes a piston, a sampling branch tube, and a piston sealing column. The piston is installed inside the first sampling tube and has an axial through hole. The sampling branch tube is fixed inside the axial through hole. The piston sealing column is fixed to the top of the first sampling tube. Several fixed support protrusions are provided on the outside of the piston sealing column. The piston sealing column is fixed to the first sampling tube through the fixed support protrusions. The sampling branch tube is connected to the synchronous sampling mechanism.

[0006] Furthermore, the bottom of the piston sealing column is provided with an arc-shaped part, and the piston is provided with an arc-shaped ring part that cooperates with the arc-shaped part.

[0007] Furthermore, the piston is fitted with the inner walls of the first sampling tube and the second sampling tube by either an overfit or an interference fit.

[0008] Furthermore, both the piston seal and the piston are made of rubber.

[0009] Furthermore, the synchronous sampling mechanism includes an adjusting screw, a synchronous adjusting plate, and an adjusting knob. The top of the adjusting screw is rotatably connected to the bottom of the sampling barrel. The adjusting knob is located at the bottom of the adjusting screw. The middle of the synchronous adjusting plate is provided with a threaded hole that mates with the adjusting screw. Both ends of the synchronous adjusting plate are provided with mounting through holes for installing sampling branch pipes. The sampling branch pipes are fixed in the mounting through holes.

[0010] Furthermore, it also includes a bracket for installing the sampling bucket, which includes a left bracket and a right bracket. The left and right brackets are connected by several crossbeams, and both the left and right brackets are U-shaped.

[0011] Furthermore, sampling plates are provided at the bottom of the left and right supports.

[0012] The beneficial effects of this utility model are as follows:

[0013] The synchronous sampling mechanism of this invention can drive two sampling piston mechanisms to rise and fall synchronously, thereby controlling the sampling piston mechanism to achieve the opening and closing of the first sampling tube and the second sampling tube, realizing parallel sampling of water quality, and thus ensuring the consistency of the packaged samples.

[0014] The synchronous sampling mechanism of this utility model includes an adjusting screw, a synchronous adjusting plate, and an adjusting knob. The adjusting knob controls the rotation of the adjusting screw, thereby driving the synchronous adjusting plate to rise and fall. The sampling piston mechanism includes a piston, a sampling branch tube, and a piston sealing column. The synchronous adjusting plate drives the two sampling branch tubes to rise and fall, so that the piston and the hollow piston sealing column are separated or connected, realizing the connection and disconnection of the first sampling tube and the second sampling tube. The synchronous sampling mechanism controls the movement of the sampling piston mechanism to realize the function of simultaneously opening and closing the first sampling tube and the second sampling tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention from another direction;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 Schematic diagram of the structure of the first sampling tube, the second sampling tube, and the synchronous sampling mechanism. Figure 1 ;

[0019] Figure 5 This is a schematic diagram of the structure of the first sampling tube, the second sampling tube, and the synchronous sampling mechanism. Figure 2 ;

[0020] Figure 6 This is a top view of the first sampling tube, the second sampling tube, and the synchronous sampling mechanism;

[0021] Figure 7 for Figure 6 AA section view in the middle;

[0022] The symbols for each component are as follows:

[0023] 1. Sampling bucket; 2. First sampling tube; 21. Piston; 22. Sampling branch tube; 23. Piston sealing column; 24. Fixed support protrusion;

[0024] 3. Second sampling tube; 4. Synchronous sampling mechanism; 41. Adjusting screw; 42. Synchronous adjustment plate; 43. Adjusting knob; 5. Left support; 6. Right support; 7. Sampling plate. Detailed Implementation

[0025] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0026] like Figure 1 , 2 As shown in Figure 3, the parallel water sampler includes a sampling bucket 1 made of polyethylene plastic. A first sampling tube 2 and a second sampling tube 3 are located at the bottom of the sampling bucket. The first sampling tube 2 and the second sampling tube 3 have identical structures. A water outlet is located at the bottom of the sampling bucket 1, and the first sampling tube 2 and the second sampling tube 3 are sealed and fixed inside the water outlet. A sampling piston mechanism is installed inside both the first sampling tube 2 and the second sampling tube 3. Each sampling piston mechanism controls the outflow of sampled water from either the first sampling tube 2 or the second sampling tube 3. A synchronous sampling mechanism 4 is located at the bottom of the sampling bucket 1, which drives the two sampling piston mechanisms to move synchronously. By driving the two sampling piston mechanisms to move synchronously through the synchronous sampling mechanism 4, the sampled water in the first sampling tube 2 and the second sampling tube 3 falls simultaneously, thus achieving parallel water sampling.

[0027] like Figure 4 , 5 As shown in Figures 6 and 7, the sampling piston mechanism includes a piston 21, a sampling branch pipe 22, and a piston sealing column 23. The piston 21 is installed inside the first sampling pipe 2, and an axial through hole is provided on the piston 21. The sampling branch pipe 22 is fixed inside the axial through hole. The piston sealing column 23 is fixed to the top of the first sampling pipe 2. Several fixed support protrusions 24 are provided on the outside of the piston sealing column 23. The piston sealing column 23 is fixed to the first sampling pipe 2 through the fixed support protrusions 24. The sampling branch pipe 22 is connected to the synchronous sampling mechanism 4.

[0028] An arc-shaped portion is provided at the bottom of the piston sealing column 23, and an arc-shaped ring portion is provided on the piston 21 to cooperate with the arc-shaped portion. The piston sealing column 23 achieves a better sealing effect through the cooperation between the arc-shaped portion and the arc-shaped ring portion of the piston 21. The piston 21 and the inner walls of the first sampling tube 2 and the second sampling tube 3 adopt an interference fit or a transition fit to ensure the sealing performance between the piston 21 and the first sampling tube 2 and the second sampling tube 3. Both the piston sealing column 23 and the piston 21 are made of rubber. Rubber can undergo appropriate deformation after contact, which can achieve a better sealing effect between the piston sealing column 23 and the piston 21.

[0029] The synchronous sampling mechanism 4 includes an adjusting screw 41, a synchronous adjusting plate 42, and an adjusting knob 43. The top of the adjusting screw 41 is rotatably connected to the bottom of the sampling barrel 1. The adjusting knob 43 is located at the bottom of the adjusting screw 41. The synchronous adjusting plate 42 has a threaded hole in the middle that mates with the adjusting screw 41. Both ends of the synchronous adjusting plate 42 have mounting through holes for installing sampling branch pipes 22, which are fixed within the mounting through holes. An upper extension and a lower extension can be provided at the threaded hole to increase the connection area between the adjusting screw 41 and the threaded hole, ensuring stability when the adjusting screw 41 drives the synchronous adjusting plate 42 to rise and fall. This allows the synchronous adjusting plate 42 to drive the two sampling branch pipes 22 to move more synchronously and evenly, achieving more synchronized and parallel sampling of the first sampling pipe 2 and the second sampling pipe 3. Alternatively, the threaded hole can be replaced with a threaded sleeve, which is then fixedly connected to the synchronous adjusting plate 42. The sampling branch pipe 22 is fixed within the mounting through hole of the synchronous adjusting plate 42 by adhesive bonding.

[0030] It also includes a bracket for mounting the sampling bucket 1, comprising a left bracket 5 and a right bracket 6. The left bracket 5 and right bracket 6 are connected as a whole by several crossbeams. Both the left bracket 5 and right bracket 6 are U-shaped. The sampling bucket 1 is placed on top of the left bracket 5 and right bracket 6. A limiting frame can also be set on the top of the left bracket 5 and right bracket 6 to limit the position of the sampling bucket 1, facilitating its installation on top of the left bracket 5 and right bracket 6. A sampling plate 7 is provided at the bottom of the left bracket 5 and right bracket 6, which is used to place containers such as test tubes for sampling.

[0031] Working process and principle: Before sampling, the water is stored in the sampling bucket 1, and then the sampling test tubes are placed on the sampling plate 7, so that each sampling test tube corresponds to the outlet of the sampling branch pipe 22. During sampling, the adjusting knob 43 is turned, which drives the adjusting screw 41 to rotate. The adjusting screw 41 drives the synchronous adjusting plate 42 to descend, and the synchronous adjusting plate 42 drives the sampling branch pipes 22 on the left and right sides to descend together. The sampling branch pipes 22 drive the piston 21 to move downward, causing the piston sealing column 23 and the piston 21 to separate, so that the water sampled in the sampling bucket 1 flows from the first sampling pipe 2 and the second sampling pipe 3 into the sampling test tubes respectively, realizing parallel water sampling. After sampling is completed, the adjusting knob 43 is turned in the opposite direction to make the piston sealing column 23 and the piston 21 connect and seal, thereby realizing the opening and closing of the first sampling pipe 2 and the second sampling pipe 3. The synchronous sampling mechanism 4, in conjunction with the sampling piston mechanism, can switch the first sampling tube 2 and the second sampling tube 3 on and off, thereby enabling parallel sampling of water quality from two locations.

Claims

1. A parallel water quality sampler, characterized in that, It includes a sampling bucket (1), and a first sampling tube (2) and a second sampling tube (3) are provided at the bottom of the sampling bucket. The first sampling tube (2) and the second sampling tube have the same structure. The first sampling tube (2) and the second sampling tube (3) are each equipped with a sampling piston mechanism, and the bottom of the sampling bucket (1) is equipped with a synchronous sampling mechanism (4) that drives the two sampling piston mechanisms to move synchronously.

2. The parallel water sampler according to claim 1, characterized in that, The sampling piston mechanism includes a piston (21), a sampling branch pipe (22), and a piston sealing column (23). The piston (21) is installed inside the first sampling pipe (2). The piston (21) has an axial through hole. The sampling branch pipe (22) is fixed inside the axial through hole. The piston sealing column (23) is fixed to the top of the first sampling pipe (2). The piston sealing column (23) has several fixed support protrusions (24) on its outside. The piston sealing column (23) is fixed to the first sampling pipe (2) by the fixed support protrusions (24). The sampling branch pipe (22) is connected to the synchronous sampling mechanism (4).

3. The parallel water sampler according to claim 2, characterized in that, The bottom of the piston sealing column (23) is provided with an arc-shaped part, and the piston (21) is provided with an arc-shaped ring part that cooperates with the arc-shaped part.

4. The parallel water sampler according to claim 2, characterized in that, The piston (21) is fitted with the inner walls of the first sampling tube (2) and the second sampling tube (3) with an overfit or interference fit.

5. The parallel water sampler according to claim 2, characterized in that, Both the piston sealing column (23) and the piston (21) are made of rubber.

6. The parallel water sampler according to claim 2, characterized in that, The synchronous sampling mechanism (4) includes an adjusting screw (41), a synchronous adjusting plate (42), and an adjusting knob (43). The top of the adjusting screw (41) is rotatably connected to the bottom of the sampling barrel (1). The adjusting knob (43) is located at the bottom of the adjusting screw (41). The middle part of the synchronous adjusting plate (42) is provided with a threaded hole that cooperates with the adjusting screw (41). Both ends of the synchronous adjusting plate (42) are provided with mounting through holes for installing sampling branch pipes (22). The sampling branch pipes (22) are fixed in the mounting through holes.

7. The parallel water sampler according to claim 1, characterized in that, It also includes a bracket for installing the sampling bucket (1), the bracket including a left bracket (5) and a right bracket (6), the left bracket (5) and the right bracket (6) are connected by several crossbeams, and the left bracket (5) and the right bracket (6) are both U-shaped.

8. The parallel water sampler according to claim 7, characterized in that, Sampling plates (7) are provided at the bottom of the left support (5) and the right support (6).

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