A marine water quality sampler

Abstract

The utility model provides a kind of marine water quality sampler, it is related to seawater sampling equipment technical field, comprising: fixed cylinder, the inside of fixed cylinder is equipped with power component, two lifting lugs are symmetrically installed on the outer end face upper position of fixed cylinder, the lower end surface of fixed cylinder is welded with connecting cylinder, thread is opened in the inner wall of connecting cylinder.The utility model in this paper, depth sensor is installed on the upper end of fixed cylinder, the depth of seawater where sampler is located can be monitored in real time, and data is transmitted to control module, when depth sensor detects to reach target depth, electric cylinder drives telescopic link to stretch out downward, through-hole will directly penetrate into the inside of sampling barrel, at this time, seawater will enter the cavity on the surface of telescopic link from water inlet hole, solve the problem that traditional sampler is difficult to accurately position target depth, and existing equipment is mostly single barrel or a small amount of sampling barrel design, if need to obtain multiple parallel samples of same depth or gradient samples of different depth, need to lower equipment multiple times, the problem of cumbersome operation.

Description

Technical Field

[0001] This utility model relates to the technical field of seawater sampling equipment, and in particular to a marine water quality sampler. Background Technology

[0002] Marine water quality monitoring is a crucial foundation for marine ecological protection, resource development, and environmental governance. Water quality sampling, as a core component of the monitoring process, directly impacts the reliability of subsequent analytical results due to its accuracy and efficiency. With increasing marine development, the demand for water quality samples from different depths and sea areas is growing, and traditional marine water quality sampling equipment is gradually revealing numerous limitations in practical applications.

[0003] First, traditional samplers rely heavily on human experience to judge the depth of descent or to estimate it using simple marker ropes, which makes it difficult to accurately locate the target depth. This can easily lead to the mixing of samples from different water layers, especially in sea areas with distinct stratification, such as thermoclines and haloclines, which can cause sampling errors and affect the scientific validity of the monitoring data.

[0004] Secondly, most existing equipment is designed for single-bucket or small-scale sampling. If multiple parallel samples at the same depth or gradient samples at different depths are required, the equipment needs to be lowered multiple times, which is cumbersome and time-consuming. This not only increases operating costs but may also lead to a decrease in the spatiotemporal correlation of samples due to changes in ocean currents and tides. Utility Model Content

[0005] This utility model relates to a marine water quality sampler, which solves the problems of traditional samplers relying on human experience to judge the depth of descent, making it difficult to accurately locate the target depth and easily causing samples from different water layers to mix. In addition, existing equipment is mostly designed with a single bucket or a small number of sampling buckets. If multiple parallel samples at the same depth or gradient samples at different depths are required, the equipment needs to be lowered multiple times, which is cumbersome.

[0006] This utility model provides a marine water quality sampler, specifically including: a fixed cylinder;

[0007] The power supply assembly is installed inside the fixed cylinder. Two lifting rings are symmetrically installed above the outer end face of the fixed cylinder. A connecting cylinder is welded to the lower end face of the fixed cylinder, and the inner wall of the connecting cylinder is threaded.

[0008] A connecting rod is welded to the outer end face of the fixed cylinder. Six connecting rods are arranged in a ring. A fixed ring is welded to the outer end face of the connecting rod. A cover plate is rotatably connected to the outer end face of the fixed ring.

[0009] The device cylinder has a connecting pipe fixedly installed on its outer end face, and the other end of the connecting pipe is fixedly connected to the fixed cylinder.

[0010] An electric cylinder is fixedly installed inside the device cylinder, and a telescopic rod is connected to the lower end face of the electric cylinder.

[0011] The sampling bucket has a water inlet pipe fixedly installed at the middle of its upper end face. The surface of the water inlet pipe has water inlet holes evenly distributed. The sampling bucket is located directly below the device cylinder, and there are six sampling buckets arranged in a ring.

[0012] Furthermore, a control module is fixedly installed at the middle position of the upper end face of the fixed cylinder. The control module is electrically connected to the power supply component and the electric cylinder. A depth sensor is also installed on the upper end face of the fixed cylinder, and the depth sensor is electrically connected to the control module.

[0013] Furthermore, the sampling bucket is located between the fixing ring and the cover plate, and the fixing ring and the cover plate are connected by bolts. Rubber strips are evenly installed on the inner end face of the cover plate.

[0014] Furthermore, the connecting cylinder is internally threaded with a connecting screw, and a gravity block is welded to the lower end face of the connecting screw. The lower end of the gravity block is divided into a conical structure.

[0015] Furthermore, the telescopic rod has an internal cavity, with two symmetrical slots on the upper end face of the cavity, and six through holes in a ring shape below the outer end face of the telescopic rod, which are connected to the internal cavity of the telescopic rod.

[0016] Furthermore, an air outlet pipe is fixedly installed on the upper surface of the sampling barrel, and a one-way valve is installed inside the air outlet pipe.

[0017] This utility model provides a marine water quality sampler, which has the following beneficial effects:

[0018] 1. The fixed ring and the cover plate are rotatably connected. The worker can clamp the sampling bucket between the fixed ring and the cover plate, and then fix the cover plate to the outside of the fixed ring with bolts. Rubber strips are evenly installed on the inner end face of the cover plate, which can improve the stability of the sampling bucket between the fixed ring and the cover plate. The gravity block is fixed to the connecting cylinder at the lower end of the fixed cylinder by the connecting screw. The conical structure at the lower end of the gravity block can reduce water flow resistance and ensure that the sampler sinks vertically and maintains a stable posture.

[0019] 2. A depth sensor is installed at the upper end of the fixed cylinder, which can monitor the seawater depth where the sampler is located in real time and transmit the data to the control module. The control module, in conjunction with the preset sampling depth parameters, determines whether the target depth has been reached. When the depth sensor detects that the target depth has been reached, the control module sends a command to the electric cylinder, which drives the telescopic rod to extend downward. The annular through hole at the lower end of the telescopic rod moves down with the telescopic rod and the through hole directly penetrates into the sampling barrel. The groove on the surface of the telescopic rod aligns with the inlet hole on the surface of the water inlet pipe. At this time, seawater enters the cavity on the surface of the telescopic rod from the inlet hole and then flows into the sampling barrel from the through hole on the outer end of the telescopic rod, thus realizing the seawater sampling operation.

[0020] 3. When the electric cylinder is in the retracted state, the telescopic rod is completely retracted into the water inlet pipe at the top of the sampling bucket. At this time, the telescopic rod blocks the water inlet hole on the surface of the water inlet pipe, and the water inlet pipe also blocks the empty groove on the surface of the telescopic rod, preventing seawater from entering the sampling bucket.

[0021] 4. When seawater is filling the sampling bucket, the gas inside the sampling bucket will be discharged from the vent pipe. The vent pipe is equipped with a one-way valve to ensure the one-way flow of gas and prevent air pressure from hindering the water sample from entering. This ensures that the sampling bucket is filled with water sample. The six sampling buckets are arranged in a ring. The extension and retraction stroke of the electric cylinder can be controlled by the control module to achieve simultaneous collection of multiple water samples at the same depth. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0024] In the attached diagram:

[0025] Figure 1 A schematic diagram of the overall device structure of this utility model is shown;

[0026] Figure 2 This invention presents a schematic diagram of the overall device structure after the sampling bucket is removed.

[0027] Figure 3 A cross-sectional view of the fixed cylinder structure of this utility model is shown;

[0028] Figure 4 This diagram shows the structure of the telescopic rod of this utility model when it is inserted into the water inlet pipe;

[0029] Figure 5 This diagram shows an exploded view of the telescopic rod and water inlet pipe of this utility model.

[0030] Figure 6A schematic diagram of the connection structure between the fixed cylinder, connecting pipe and device cylinder of this utility model is shown.

[0031] List of reference numerals in the attached diagram:

[0032] 1. Fixed cylinder; 101. Power supply assembly; 102. Control module; 103. Depth sensor; 104. Lifting ring; 105. Connecting cylinder; 2. Connecting rod; 201. Fixing ring; 202. Cover plate; 2021. Rubber strip; 3. Device cylinder; 301. Connecting pipe; 4. Electric cylinder; 401. Telescopic rod; 4011. Through hole; 5. Sampling bucket; 501. Air outlet pipe; 5011. One-way valve; 6. Water inlet pipe; 601. Water inlet hole; 7. Gravity block; 701. Connecting screw. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Example 1: Please refer to Figures 1 to 6 :

[0035] This utility model proposes a marine water quality sampler, comprising: a fixed cylinder 1;

[0036] The power supply assembly 101 is installed inside the fixed cylinder 1. Two lifting rings 104 are symmetrically installed above the outer end face of the fixed cylinder 1. A connecting cylinder 105 is welded to the lower end face of the fixed cylinder 1. The inner wall of the connecting cylinder 105 is threaded.

[0037] Connecting rod 2 is welded to the outer end face of fixed cylinder 1. There are six connecting rods 2 arranged in a ring. A fixed ring 201 is welded to the outer end face of the connecting rod 2. A cover plate 202 is rotatably connected to the outer end face of the fixed ring 201.

[0038] Device cylinder 3, with a connecting pipe 301 fixedly installed on the outer end face of device cylinder 3, and the other end of the connecting pipe 301 fixedly connected to the fixed cylinder 1.

[0039] Electric cylinder 4 is fixedly installed inside the device cylinder 3, and a telescopic rod 401 is connected to the lower end face of electric cylinder 4.

[0040] The sampling bucket 5 has a water inlet pipe 6 fixedly installed at the middle of its upper end face. The surface of the water inlet pipe 6 is evenly provided with water inlet holes 601. The sampling bucket 5 is located directly below the device cylinder 3. There are six sampling buckets 5 arranged in a ring. During use, the six sampling buckets 5 are arranged in a ring. The extension and retraction stroke of the electric cylinder 4 can be controlled by the control module 102 to realize the synchronous collection of multiple water samples at the same depth. If sampling at different depths is required, the depth of the sampler can be adjusted by the lifting equipment and the above water inlet process can be repeated.

[0041] The control module 102 is fixedly installed at the middle position of the upper end face of the fixed cylinder 1. The control module 102 is electrically connected to the power supply component 101 and the electric cylinder 4. A depth sensor 103 is also installed on the upper end face of the fixed cylinder 1. The depth sensor 103 is electrically connected to the control module 102.

[0042] The sampling bucket 5 is located between the fixing ring 201 and the cover plate 202. The fixing ring 201 and the cover plate 202 are connected by bolts. Rubber strips 2021 are evenly installed on the inner end face of the cover plate 202, which can improve the stability of the sampling bucket 5 between the fixing ring 201 and the cover plate 202 during use.

[0043] The connecting cylinder 105 is internally threaded with a connecting screw 701. A gravity block 7 is welded to the lower end face of the connecting screw 701. The lower end of the gravity block 7 has a conical structure. The gravity block 7 is threadedly fixed to the connecting cylinder 105 at the lower end of the fixed cylinder 1 by the connecting screw 701. The conical structure at the lower end of the gravity block 7 can reduce water flow resistance and ensure that the sampler sinks vertically and maintains a stable posture.

[0044] The telescopic rod 401 has an internal cavity with two symmetrical slots on its upper end. Six through holes 4011 are annularly formed below the outer end face of the telescopic rod 401, connecting to the internal cavity. During use, the annular through holes 4011 at the lower end of the telescopic rod 401 move downwards, directly penetrating into the sampling container 5. The slots on the surface of the telescopic rod 401 align with the inlet holes 601 on the surface of the water inlet pipe 6. Seawater then enters the cavity on the surface of the telescopic rod 401 through the inlet holes 601 and flows into the sampling container 5 through the through holes 4011 on the outer end face of the telescopic rod 401, thus completing the seawater sampling operation.

[0045] The sampling bucket 5 is fixedly installed with an air outlet pipe 501 on its upper surface. A one-way valve 5011 is installed inside the air outlet pipe 501. When the seawater fills the sampling bucket 5, the gas inside the sampling bucket 5 will be discharged from the air outlet pipe 501. The one-way valve 5011 installed inside the air outlet pipe 501 can ensure the one-way flow of gas, avoid the air pressure from hindering the water sample from entering, and ensure that the sampling bucket 5 is filled with water sample.

[0046] The working principle of this embodiment:

[0047] In this invention, the fixing ring 201 and the cover plate 202 are rotatably connected. Workers can clamp the sampling bucket 5 between the fixing ring 201 and the cover plate 202, and then fix the cover plate 202 to the outside of the fixing ring 201 using bolts. Rubber strips 2021 are evenly installed on the inner end face of the cover plate 202, which improves the stability of the sampling bucket 5 between the fixing ring 201 and the cover plate 202. Two lifting rings 104 are welded to the upper end of the fixing cylinder 1, allowing the sampler to be connected to lifting equipment and lowered to the target sea area. The gravity block 7 is threadedly fixed to the connecting cylinder 105 at the lower end of the fixing cylinder 1 via a connecting screw 701. The tapered structure at the lower end of the gravity block 7 reduces water flow resistance, ensuring the sampler is vertical. The sampler sinks and maintains a stable posture. A depth sensor 103 is installed at the upper end of the fixed cylinder 1, which can monitor the seawater depth at the sampler's location in real time and transmit the data to the control module 102. The control module 102, combined with preset sampling depth parameters, determines whether the target depth has been reached. Before sampling, the electric cylinder 4 is in a retracted state, and the telescopic rod 401 is stored in the water inlet pipe 6 at the upper end of the sampling bucket 5. At this time, the telescopic rod 401 blocks the water inlet hole 601 on the surface of the water inlet pipe 6, and the water inlet pipe 6 also blocks the empty groove on the surface of the telescopic rod 401, preventing seawater from entering the sampling bucket 5. When the depth sensor 103 detects that the target depth has been reached, the control module 102 sends a command to the electric cylinder 4. The telescopic rod 401 extends downwards, and the annular through hole 4011 at the lower end of the telescopic rod 401 moves downwards with it, directly penetrating into the sampling bucket 5. The groove on the surface of the telescopic rod 401 aligns with the inlet hole 601 on the surface of the inlet pipe 6. Seawater then enters the cavity on the surface of the telescopic rod 401 through the inlet hole 601, and then flows into the sampling bucket 5 through the through hole 4011 on the outer end of the telescopic rod 401, thus completing the seawater sampling operation. While the sampling bucket 5 is being filled with seawater, the gas inside the sampling bucket 5 is discharged through the vent pipe 501. A one-way valve 5011 is installed inside the vent pipe 501 to ensure unidirectional gas flow and prevent... To prevent air pressure from hindering water sample entry and ensure that the sampling bucket 5 is filled with water sample, the six sampling buckets 5 are arranged in a ring. The extension and retraction stroke of the electric cylinder 4 can be controlled by the control module 102 to achieve simultaneous collection of multiple water samples at the same depth. If sampling at different depths is required, the depth of the sampler can be adjusted by the lifting equipment, and the above water intake process can be repeated. After sampling is completed, the control module 102 instructs the electric cylinder 4 to retract, the extension rod 401 to move upward, the through hole 4011 to be misaligned with the water inlet hole 601, and the water inlet pipe 6 to be closed to prevent water sample from mixing or leaking during the recovery process. The sampler is lifted to the water surface by the lifting ring 104, the connecting bolts between the fixing ring 201 and the cover plate 202 are loosened, and the sampling bucket 5 is taken out to complete the water sample collection.

Claims

1. A marine water quality sampler, characterized in that, Includes: a fixed cylinder (1), inside which a power supply assembly (101) is installed; two lifting rings (104) are symmetrically installed above the outer end face of the fixed cylinder (1); a connecting cylinder (105) is welded to the lower end face of the fixed cylinder (1); the inner wall of the connecting cylinder (105) is threaded; a connecting rod (2), which is welded to the outer end face of the fixed cylinder (1); six connecting rods (2) are arranged in a ring; a fixing ring (201) is welded to the outer end face of the connecting rod (2); and a cover plate (202) is rotatably connected to the outer end face of the fixing ring (201); and a device cylinder (3). A connecting pipe (301) is fixedly installed on the outer end face of the device cylinder (3), and the other end of the connecting pipe (301) is fixedly connected to the fixed cylinder (1); an electric cylinder (4) is fixedly installed inside the device cylinder (3), and a telescopic rod (401) is connected to the lower end face of the electric cylinder (4); a sampling bucket (5) is fixedly installed in the middle position of the upper end face of the sampling bucket (5), and a water inlet pipe (6) is evenly provided on the surface of the water inlet pipe (6). The sampling bucket (5) is located directly below the device cylinder (3), and six sampling buckets (5) are arranged in a ring.

2. A marine water quality sampler according to claim 1, characterized in that, A control module (102) is fixedly installed at the middle position of the upper end face of the fixed cylinder (1). The control module (102) is electrically connected to the power supply assembly (101) and the electric cylinder (4). A depth sensor (103) is also installed on the upper end face of the fixed cylinder (1). The depth sensor (103) is electrically connected to the control module (102).

3. A marine water quality sampler according to claim 1, characterized in that, The sampling bucket (5) is located between the fixing ring (201) and the cover plate (202). The fixing ring (201) and the cover plate (202) are connected by bolts. Rubber strips (2021) are evenly installed on the inner end face of the cover plate (202).

4. A marine water quality sampler according to claim 1, characterized in that, The connecting cylinder (105) is internally threaded with a connecting screw (701), and a gravity block (7) is welded to the lower end face of the connecting screw (701). The lower end of the gravity block (7) is divided into a conical structure.

5. A marine water quality sampler according to claim 1, characterized in that, The telescopic rod (401) has a cavity inside, and two slots are symmetrically opened on the upper end face of the cavity. Six through holes (4011) are opened in a ring shape below the outer end face of the telescopic rod (401), and the through holes (4011) are connected to the cavity inside the telescopic rod (401).

6. A marine water quality sampler according to claim 1, characterized in that, An air outlet pipe (501) is fixedly installed on the upper surface of the sampling bucket (5), and a one-way valve (5011) is installed inside the air outlet pipe (501).

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