Seawater sampler

Abstract

The utility model discloses a seawater sampler, which belongs to the technical field of seawater sampling and comprises a sampling barrel, an outer barrel is arranged on the outer side of the sampling barrel, the sampling barrel is vertically mounted in the middle of the inside of the outer barrel, and a sampling port communicated with the inside of the sampling barrel is formed in the middle of the bottom of the outer barrel. The top end of the sampling barrel is communicated with the outside of the outer barrel body, and a piston is vertically arranged in the sampling barrel in a sliding manner. The outer cylinder body is arranged outside the sampling cylinder, the outer cylinder body is used for external protection, the sliding plates are uniformly arranged on the outer side of the outer cylinder body in the circumferential direction in a sliding mode, and the springs are matched for use, so that when the device is used, the sliding plates are in an unfolded state, the device can be prevented from being clamped in a small rock seam, buffering protection can be achieved, and the sampling efficiency is improved. And when the device is clamped into the rock seam, the sliding plate can be extruded into the outer barrel, the size of the device is reduced, the device can be rapidly taken out of the rock seam, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to a sampler, and more particularly to a seawater sampler, belonging to the field of seawater sampling technology. Background Technology

[0002] Seawater sampling helps scientists determine the species and distribution of organisms in the ocean. By analyzing microorganisms and plankton in seawater samples, researchers can count the types (such as diatoms and dinoflagellates) and quantities of plankton, and understand their variation with factors such as season and geographical location. This information is crucial for assessing the health of marine ecosystems.

[0003] In the prior art, such as the utility model with application number 202323561751.4, a seawater sampling device for marine testing is disclosed. In order to solve the problem that the sampling device is prone to cracking and damage to the outer surface of the device when it collidees with rocks during descent or ascent, making it difficult to collect samples normally in subsequent work, the device is designed with a protective component. When it encounters a rock or other external object, the shock-absorbing wheel of the sampling device can rotate along the first bearing. The rotation can effectively dissipate and offset the external impact force, avoiding the impact force from acting directly on the surface of the outer cylinder and causing surface cracking and damage. In addition, the operator can rotate the inner cylinder by rotating the rod so that the B water inlet groove at the bottom of the inner cylinder overlaps with the A water inlet groove at the bottom of the outer cylinder, so that seawater can enter the inner cylinder, thereby quickly completing the seawater sampling.

[0004] The above applications still have shortcomings:

[0005] The sampling device is of a fixed size. If it gets stuck in a rock crevice, it cannot be pulled out directly and requires manual diving to retrieve it, which is inconvenient to use. In addition, it requires manual rotation control during the sampling process, and it cannot be sampled directly on the shore, making it less practical.

[0006] Therefore, a seawater sampler was designed to optimize the above-mentioned problems. Utility Model Content

[0007] The main objective of this invention is to provide a seawater sampler to solve the problems mentioned in the background section.

[0008] The objective of this utility model can be achieved by adopting the following technical solution:

[0009] A seawater sampler includes a sampling tube with an outer cylinder body on its outer side. The sampling tube is vertically installed at the middle position inside the outer cylinder body. A sampling port communicating with the inside of the sampling tube is opened at the middle position of the bottom of the outer cylinder body, and the top of the sampling tube is communicating with the outside of the outer cylinder body. A piston is vertically slidably installed inside the sampling tube. A pressure rod is fixed at the middle position of the top of the piston and slides to the outside of the outer cylinder body. A tension spring is fixed between the top of the piston and the inner top of the outer cylinder body. A first pulling rope is fixedly installed on the top of the pressure rod. A locking mechanism for limiting the pressure rod is provided at the inner top of the outer cylinder body. A protective mechanism is uniformly provided along the circumference of the outer cylinder body.

[0010] Preferably, a filter screen is provided at the bottom of the sampling port and at the opening on the outer cylinder, and an arc-shaped chamfer is provided on the outer side of the outer cylinder.

[0011] Preferably, the locking mechanism includes a mounting groove, a plug, a compression spring, a slot, and a second pull rope. The mounting groove is located at the top of the outer cylinder. The plug is slidably installed inside the mounting groove. A compression spring is provided between the plug and the inner end of the mounting groove. A slot that mates with the plug is provided on the outer side of the pressure rod. The end of the plug is provided with a second pull rope, which extends to the outside of the outer cylinder.

[0012] Preferably, a limiting ring is uniformly provided on the outer side of the first pulling rope along its length, and the second pulling rope passes through the inside of the limiting ring.

[0013] Preferably, the protective mechanism includes a chute, a sliding plate, and a buffer spring. The chute is evenly opened along the circumference of the outer cylinder and is parallel to the length direction of the outer cylinder. A sliding plate is slidably installed inside the chute, and a buffer spring is provided between the sliding plate and the outer side of the sampling cylinder.

[0014] Preferably, the slide plate has sliding holes, and a sliding rod is slidably installed inside each sliding hole. The sliding rod passes through the inside of the buffer spring and is fixedly connected to the outside of the sampling cylinder.

[0015] Preferably, the top of the slide plate is provided with a slanted guide edge, and the side of the slide plate is rotatably mounted with a roller along its length.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model features an outer cylinder for external protection of the sampling tube. A sliding plate is evenly slidable along the circumference of the outer cylinder and works in conjunction with a spring. When in use, the sliding plate is in an extended state, which prevents the device from getting stuck in small rock crevices and provides cushioning protection. If the device gets stuck in a rock crevice, the sliding plate can be squeezed into the outer cylinder, reducing the size of the device and allowing it to be quickly removed from the rock crevice, thus improving its practicality.

[0018] 2. This utility model has a locking mechanism consisting of an installation groove, a plug, a compression spring, a second traction rope, and a slot on the pressure rod, which is provided on the inner top of the outer cylinder. After reaching the sampling depth, the locking state of the pressure rod can be released by simply pulling up the second traction rope without manual underwater adjustment. The piston is then controlled by the tension spring to extract seawater, making it more convenient to use. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention;

[0020] Figure 2 This is a diagram showing the sampling and deployment status of this utility model.

[0021] Figure 3 A state diagram for sample extraction according to this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Outer cylinder;

[0024] 2. Sampling tube;

[0025] 3. Sampling port;

[0026] 4. Piston;

[0027] 5. Compression bar;

[0028] 6. First pulling rope;

[0029] 7. Tension spring;

[0030] 8. Locking mechanism; 801. Mounting slot; 802. Insert block; 803. Compression spring; 804. Slot; 805. Second pull rope;

[0031] 9. Protective mechanism; 901. Slide groove; 902. Slide plate; 903. Buffer spring; 904. Slide hole; 905. Slide rod; 906. Rotary roller. Detailed Implementation

[0032] 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.

[0033] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Example 1

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a seawater sampler, including a sampling cylinder 2, an outer cylinder 1 on the outside of the sampling cylinder 2, the sampling cylinder 2 being vertically installed at the middle position inside the outer cylinder 1, a sampling port 3 communicating with the inside of the sampling cylinder 2 being opened at the middle position of the bottom of the outer cylinder 1, and the top of the sampling cylinder 2 communicating with the outside of the outer cylinder 1, a piston 4 being vertically slidably installed inside the sampling cylinder 2, a pressure rod 5 being fixed at the middle position of the top of the piston 4, the pressure rod 5 being slidably extended to the outside of the outer cylinder 1, a tension spring 7 being fixed between the top of the piston 4 and the inner top of the outer cylinder 1, a first pulling rope 6 being fixedly installed on the top of the pressure rod 5, a locking mechanism 8 for limiting the pressure rod 5 being provided at the inner top of the outer cylinder 1, and a protective mechanism 9 being uniformly provided circumferentially on the outside of the outer cylinder 1.

[0039] In the initial state, the tension spring 7 is in a contracted state, and the piston 4 is located at the top of the sampling cylinder 2. When sampling is required, the piston 4 is pressed down by the pressure rod 5 to expel the gas inside the sampling cylinder 2. When the piston 4 is at the bottom of the sampling cylinder 2, the locking mechanism 8 fixes the position of the pressure rod 5. At this time, the tension spring 7 is in a stretched state. Then, the device is put into the seawater for sampling. When the sampling depth is reached, the locking state of the pressure rod 5 is released, the tension spring 7 automatically resets, and the piston 4 is controlled to rise. Seawater enters the interior of the sampling cylinder 2 from the sampling port 3 to complete the sampling operation. Then, the first pulling rope 6 is pulled up to take out the device. If the seawater causes the device to move and collide with rocks during the sampling process, the protective mechanism 9 can reduce the impact force. If it gets stuck in the rock crevice, the protective mechanism 9 can reduce the size of the device so that the device can be pulled out quickly.

[0040] Example 2

[0041] The solution in Example 1 will be further described below with reference to its specific working method.

[0042] like Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, a filter screen is provided at the bottom of the sampling port 3 and at the opening on the outer cylinder 1, and an arc-shaped chamfer is provided on the outer side of the outer cylinder 1.

[0043] The use of a filter screen can prevent impurities in the seawater from entering the interior of the sampling cylinder 2, while the rounded chamfer on the surface of the outer cylinder 1 avoids the obstruction that may be caused by the sharp edges on the outside, making it easy for the device to pass through the gap.

[0044] like Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the locking mechanism 8 further includes a mounting groove 801, a plug 802, a compression spring 803, a slot 804, and a second pull rope 805. The mounting groove 801 is opened in the top of the inner cylinder 1. The plug 802 is slidably installed inside the mounting groove 801. A compression spring 803 is provided between the plug 802 and the inner end of the mounting groove 801. A slot 804 that cooperates with the plug 802 is opened on the outer side of the pressure rod 5. The end of the plug 802 is provided with a second pull rope 805, and the second pull rope 805 extends to the outside of the outer cylinder 1.

[0045] In the initial state, the compression spring 803 is located inside the mounting groove 801 and is in a compressed state. After the pressure rod 5 is pressed down and the slot 804 is aligned with the mounting groove 801, the compression spring 803 pushes the insert 802 to automatically insert into the slot 804. At this time, the positions of the pressure rod 5 and the tension spring 7 are locked. When sampling is required, the second pull rope 805 pulls the insert 802 toward the inside of the mounting groove 801, and the insert 802 is pulled out from the inside of the slot 804, releasing the positioning state of the pressure rod 5.

[0046] like Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, a limiting ring is evenly provided on the outer side of the first pulling rope 6 along the length direction, and the second pulling rope 805 passes through the inside of the limiting ring.

[0047] The second pull rope 805 is released together with the first pull rope 6, which facilitates operation and control when unlocking the pressure bar 5.

[0048] like Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the protective mechanism 9 further includes a slide 901, a slide plate 902 and a buffer spring 903. The slide 901 is evenly opened along the circumference of the outer cylinder 1 and is parallel to the length direction of the outer cylinder 1. The slide plate 902 is slidably installed inside the slide 901. The buffer spring 903 is provided between the slide plate 902 and the outer side of the sampling cylinder 2.

[0049] In the initial state, the slide plate 902 extends outward from the inside of the slide groove 901, increasing the volume of the device and preventing the device from getting stuck in small rock gaps. If the device gets stuck, the device can be moved upward directly by the first pulling rope 6, while the slide plate 902 is squeezed into the inside of the outer cylinder 1 by the rock, reducing the volume of the device and allowing it to be quickly pulled out.

[0050] like Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, each of the slide plates 902 is provided with a sliding hole 904, and a sliding rod 905 is slidably installed inside each sliding hole 904. The sliding rod 905 passes through the inside of the buffer spring 903 and is fixedly connected to the outside of the sampling cylinder 2.

[0051] During the sliding process of the slide plate 902, the slide rod 905 is inserted into the sliding hole 904, and the slide rod 905 can limit the buffer spring 903 to prevent the buffer spring 903 from deflecting outward.

[0052] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the top of the slide plate 902 is provided with a slanted guide edge, and the side of the slide plate 902 is rotatably mounted with a roller 906 along the length direction.

[0053] After the device collides with the rock, the presence of the rotating roller 906 can rotate to unload the force, reduce the impact, and effectively protect the device.

[0054] Example 3

[0055] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0056] Initially, the tension spring 7 is in a contracted state, and the piston 4 is located at the top of the sampling cylinder 2. When sampling is required, the piston 4 is pressed down by the pressure rod 5 to expel the gas inside the sampling cylinder 2 and stretch the tension spring 7. After the pressure rod 5 is pressed down and the slot 804 is aligned with the mounting groove 801, the compression spring 803 pushes the insert 802 to automatically insert into the slot 804. At this time, the positions of the pressure rod 5 and the tension spring 7 are locked. Then, the first traction rope 6 and the second traction rope 805 are released, and the device is submerged in seawater for sampling. When the sampling depth is reached, the second traction rope 805 is pulled up to move the insert 802 toward the mounting groove. Pulling the internal part of 801 causes the insert 802 to be pulled out from the slot 804, releasing the positioning state of the pressure rod 5. The tension spring 7 automatically resets, controlling the piston 4 to rise. Seawater enters the sampling cylinder 2 from the sampling port 3, completing the sampling operation. Then, the first pulling rope 6 is pulled upward to remove the device. If the device moves during the sampling process and collides with rocks, the impact force on the device can be reduced by using the buffer spring 903. If the device gets stuck, the device can be moved upward directly by the first pulling rope 6, while the sliding plate 902 is squeezed into the outer cylinder 1 by the rocks, reducing the volume of the device and allowing it to be quickly pulled out.

[0057] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A seawater sampler, comprising a sampling tube (2), characterized in that: The outer side of the sampling tube (2) is provided with an outer cylinder (1). The sampling tube (2) is vertically installed in the middle position inside the outer cylinder (1). A sampling port (3) communicating with the inside of the sampling tube (2) is opened at the middle position of the bottom of the outer cylinder (1). The top of the sampling tube (2) is connected to the outside of the outer cylinder (1). A piston (4) is vertically slidably installed inside the sampling tube (2). A pressure rod (5) is fixed at the middle position of the top of the piston (4). The pressure rod (5) slides to the outside of the outer cylinder (1). A tension spring (7) is fixed between the top of the piston (4) and the inner top of the outer cylinder (1). A first pulling rope (6) is fixedly installed on the top of the pressure rod (5). A locking mechanism (8) for limiting the pressure rod (5) is provided at the inner top of the outer cylinder (1). A protective mechanism (9) is uniformly provided on the outer side of the outer cylinder (1) along the circumference.

2. A seawater sampler according to claim 1, characterized in that: A filter screen is provided at the bottom of the sampling port (3) and at the opening on the outer cylinder (1), and an arc-shaped chamfer is provided on the outer side of the outer cylinder (1).

3. A seawater sampler according to claim 1, characterized in that: The locking mechanism (8) includes a mounting groove (801), a plug (802), a compression spring (803), a slot (804), and a second pull rope (805). The mounting groove (801) is located at the top of the inner cylinder (1). The plug (802) is slidably installed inside the mounting groove (801). A compression spring (803) is provided between the plug (802) and the inner end of the mounting groove (801). A slot (804) that mates with the plug (802) is provided on the outer side of the pressure rod (5). The end of the plug (802) is provided with a second pull rope (805), and the second pull rope (805) extends to the outside of the outer cylinder (1).

4. A seawater sampler according to claim 3, characterized in that: The outer side of the first pull rope (6) is uniformly provided with a limiting ring along the length direction, and the second pull rope (805) passes through the inside of the limiting ring.

5. A seawater sampler according to any one of claims 1-4, characterized in that: The protective mechanism (9) includes a chute (901), a slide plate (902), and a buffer spring (903). The chute (901) is evenly opened along the circumference of the outer cylinder (1) and is parallel to the length direction of the outer cylinder (1). The slide plate (902) is slidably installed inside the chute (901). A buffer spring (903) is provided between the slide plate (902) and the outer side of the sampling cylinder (2).

6. A seawater sampler according to claim 5, characterized in that: Each slide plate (902) has a sliding hole (904), and a slide rod (905) is slidably installed inside each sliding hole (904). The slide rod (905) passes through the inside of the buffer spring (903) and is fixedly connected to the outside of the sampling cylinder (2).

7. A seawater sampler according to claim 6, characterized in that: The top of the slide plate (902) is provided with a slanted guide edge, and the side of the slide plate (902) is rotatably mounted with a roller (906) along the length direction.

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