Nearshore sediment capture device

Abstract

This application discloses a nearshore sediment capture device, including a frame, a sampling funnel, an expanding membrane, a lifting mechanism, a lifting seat, and an elastic steel wire. The sampling funnel includes a funnel body and a conical outer shell. The funnel body has a conical portion and a hollow cylindrical portion. The conical outer shell is located outside the conical portion and forms a storage space with the conical portion. The lifting seat slides over the hollow cylindrical portion. One end of the elastic steel wire is connected to the lifting seat, and the other end passes through a limiting slide. One end of the expanding membrane is fixed to the upper edge of the funnel body, and the other end is fixed to the upper end of the elastic steel wire. The lifting seat has an upper working position and a lower working position. The lifting mechanism is used to move the lifting seat and the elastic steel wire up and down. This application uses the lifting mechanism to move the lifting seat and the elastic steel wire upward, thereby enabling the expanding membrane to expand outward from the upper end of the frame, breaking through the limitations of the frame and forming an expanded conical space connected to the upper end of the conical portion, effectively increasing the opening size of the uppermost end of the sampling funnel.

Description

Technical Field

[0001] This invention relates to the field of sampling equipment, and more specifically to a nearshore sediment capture device. Background Technology

[0002] Marine particulate matter records information about marine physical, chemical, and biological processes. Sediment capture devices are sampling equipment deployed in seawater to collect marine sedimentary particulate matter, enabling the acquisition of settling particulate matter over a specific time period. For example, patent document CN 204330417 U discloses a multifunctional shallow-sea time-series sediment capture and observation device.

[0003] Sediment capture devices primarily collect sediment into sampling bottles using a conical sampling funnel. During actual sampling, given the same cone angle, the funnel with the largest opening at the top collects the most samples, resulting in higher efficiency and accuracy. However, due to limitations in frame size and considerations for storage, transportation, and deployment, the shape of existing sampling funnels is fixed and cannot exceed the frame's constraints. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a nearshore sediment capture device.

[0005] The technical solution adopted in this invention is as follows:

[0006] A nearshore sediment capture device includes a frame, a sampling funnel, an expansion membrane, a lifting mechanism, a lifting base, and multiple elastic steel wires;

[0007] The sampling funnel is fixed on the frame, and the upper end of the sampling funnel is located in the upper part of the frame. The sampling funnel includes a funnel body and a conical outer shell. The funnel body has a conical part and a hollow cylindrical part connected to the lower end of the conical part. The conical outer shell is located outside the conical part and has a first part located above and a second part located below. The second part is fixed to the outer wall of the conical part, and a storage space is formed between the first part and the conical part. The second part or the area corresponding to the outer wall of the conical part and the second part has multiple limiting slides, and each limiting slide is distributed at intervals around the axis of the funnel body.

[0008] The lifting seat slides on the hollow columnar part, the lower end of the elastic steel wire is fixed on the lifting seat, the upper end of the elastic steel wire passes through the corresponding limiting slide, the expansion membrane has a conical structure, the first end of the expansion membrane is fixed to the upper edge of the funnel body, and the second end of the expansion membrane is fixed to the upper end of each elastic steel wire.

[0009] The lifting seat has an upper working position and a lower working position. When the lifting seat is in the lower working position, the upper end of the elastic steel wire is adjacent to the upper end of the limiting slide, and the main body of the expansion film is hidden in the storage space. When the lifting seat is in the upper working position, the upper end of the elastic steel wire passes through the upper end of the sampling funnel, driving the expansion film to unfold upward to form an expansion cone-shaped space connected to the upper end of the cone-shaped part.

[0010] The lifting mechanism is used to move the lifting seat up and down, so that the lifting seat can switch between the upper working position and the lower working position.

[0011] This application provides a cone-shaped outer shell on the outside of the cone-shaped part to form a storage space for the expanded membrane, which facilitates storage, transportation and deployment. When the nearshore sediment capture device is deployed, the lifting mechanism drives the lifting seat and elastic steel wire to move upward, thereby enabling the expanded membrane to unfold to the outside of the upper end of the frame, breaking through the limitations of the frame and forming an expanded cone-shaped space connected to the upper end of the cone-shaped part, effectively increasing the opening size of the uppermost end of the sampling funnel.

[0012] In one embodiment of the present invention, the second part is fixed to the outer wall of the conical part by a plurality of connecting blocks, and the connecting blocks are spaced apart around the axis of the funnel body; the limiting slide is located between two adjacent connecting blocks.

[0013] In one embodiment of the present invention, the first end of the expansion membrane is fixed to the inner ring of the upper edge of the funnel body.

[0014] This design allows particles and other debris that fall into the expansion membrane to enter the cone-shaped section more easily.

[0015] In one embodiment of the present invention, an arc-shaped portion is fixed at the upper end of the elastic steel wire, and the arc-shaped portion is connected to the second end of the expansion membrane.

[0016] The curved section increases the connection area with the expandable membrane, making the expanded membrane more standardized in size after unfolding and the surface of the resulting cone-shaped space smoother, facilitating the sliding of particles into the cone-shaped section.

[0017] In one embodiment of the present invention, a sample storage mechanism is further included, the sample storage mechanism comprising:

[0018] A sealing disc, fixed on a frame, has an opening, and the lower end of the hollow columnar portion passes through the opening and is flush with the lower end face of the sealing disc.

[0019] A rotating frame is rotatably mounted below the sealing disk. Multiple sampling bottles are detachably mounted on the rotating frame, and the upper opening of the sampling bottle is sealed to the lower end face of the sealing disk.

[0020] A rotary switching motor is used to drive the rotating frame to rotate, so that the corresponding sampling bottle is rotated to face the lower opening of the hollow columnar part.

[0021] When collecting particulate matter, the rotary switching motor drives the rotating frame to rotate, so that the opening of one sampling bottle is directly opposite the lower opening of the hollow cylindrical part. In this way, the particulate matter falling into the expanded cone space passes through the cone part and the hollow cylindrical part in sequence before finally falling into the sampling bottle.

[0022] In one embodiment of the present invention, the outer side wall of the sampling bottle has an annular groove, the rotating frame has an elastic buckle, the sampling bottle is secured to the corresponding elastic buckle through the annular groove, and the distance between the upper and lower side walls of the annular groove is the same as the height of the elastic buckle.

[0023] This design facilitates accurate positioning of the sampling bottle and makes installation and removal very convenient.

[0024] In one embodiment of the present invention, the lower end face of the sealing disc has an annular limiting protrusion, and the upper end of the sampling bottle is in contact with the annular limiting protrusion.

[0025] The annular limiting protrusion is designed to limit the sampling bottle's radial position, ensuring accurate alignment with the lower opening of the hollow cylindrical section during sampling.

[0026] In one embodiment of the present invention, the upper end face of the sampling bottle has an annular groove, and a sealing ring is installed on the annular groove.

[0027] The sealing ring ensures a reliable seal with the sealing plate, effectively preserving the samples collected from the sampling bottle.

[0028] In one embodiment of the present invention, the lifting mechanism includes:

[0029] The lead screw is rotatably mounted on the machine frame;

[0030] Multiple guide rods are installed on the frame, and the lifting seat is sleeved on the guide rods and the lead screw, and the lifting seat is engaged with the lead screw;

[0031] The drive motor, mounted on the frame, drives the lead screw to rotate, thereby moving the lifting platform up and down.

[0032] In one embodiment of the present invention, the lifting mechanism is an electric push rod.

[0033] The beneficial effects of this invention are as follows: The cone-shaped outer shell provided on the outside of the cone-shaped part can form a storage space for the expanded membrane, which facilitates storage, transportation and deployment. When the nearshore sediment capture device is deployed, the lifting mechanism drives the lifting seat and elastic steel wire to move upward, thereby enabling the expanded membrane to expand outward to the upper end of the frame, breaking through the limitations of the frame and forming an expanded cone-shaped space connected to the upper end of the cone-shaped part, effectively increasing the opening size of the uppermost end of the sampling funnel. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the nearshore sediment capture device when the lifting platform is in the lower working position;

[0035] Figure 2 This is a schematic diagram of the nearshore sediment capture device from another angle when the lifting platform is in the lower working position;

[0036] Figure 3 This is a schematic diagram of the nearshore sediment capture device when the lifting platform is in the upper working position;

[0037] Figure 4 This is a schematic diagram of the nearshore sediment capture device from another angle when the lifting platform is in the upper working position;

[0038] Figure 5 This is a schematic diagram of a sampling funnel;

[0039] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0040] Figure 7 This is a schematic diagram of the sampling funnel from another angle;

[0041] Figure 8 yes Figure 7 Enlarged view of point B in the middle;

[0042] Figure 9 It is a top view of the sampling funnel, lifting seat, elastic steel wire and expansion membrane;

[0043] Figure 10 yes Figure 9 Sectional view of AA;

[0044] Figure 11 yes Figure 10 Enlarged view of point C in the middle;

[0045] Figure 12 This is a schematic diagram of a nearshore sediment capture device with some structures omitted;

[0046] Figure 13 This is a schematic diagram of the rotating frame and sampling bottle.

[0047] The labels for the attached figures are as follows:

[0048] 1. Frame; 2. Sampling funnel; 21. Funnel body; 211. Conical part; 212. Hollow cylindrical part; 22. Conical shell; 221. First part; 222. Second part; 23. Storage space; 24. Limiting slide; 25. Connecting block; 3. Expanding membrane; 31. First end of expanding membrane; 32. Second end of expanding membrane; 33. Expanding conical space; 4. Lifting seat; 5. Lifting mechanism; 51. Lead screw; 52. Guide rod; 53. Drive motor; 6. Elastic steel wire; 61. Lower end of elastic steel wire; 62. Upper end of elastic steel wire; 63. Arc-shaped part; 7. Sample storage mechanism; 71. Sealing plate; 711. Opening; 712. Annular limiting protrusion; 72. Rotating frame; 721. Elastic buckle; 73. Sampling bottle; 731. Annular groove; 732. Annular groove; 733. Sealing ring; 74. Rotary switching motor. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] In the description of this application, it should be noted that the terms "inner" and "outer," 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. They are used only for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] The present invention will now be described in detail with reference to the accompanying drawings.

[0053] like Figures 1-13As shown, a nearshore sediment capture device includes a frame 1, a sampling funnel 2, an expansion membrane 3, a lifting mechanism 5, a lifting base 4, and multiple elastic steel wires 6.

[0054] like Figure 5 , 6 As shown in Figures 7, 8, and 11, the sampling funnel 2 is fixed on the frame 1, and the upper end of the sampling funnel 2 is located in the upper part of the frame 1. The sampling funnel 2 includes a funnel body 21 and a conical shell 22. The funnel body 21 has a conical part 211 and a hollow cylindrical part 212 connected to the lower end of the conical part 211. The conical shell 22 is located outside the conical part 211. The conical shell 22 has a first part 221 located above and a second part 222 located below. The second part 222 is fixed to the outer wall of the conical part 211. A storage space 23 is formed between the first part 221 and the conical part 211. The second part 222 or the area corresponding to the outer wall of the conical part 211 and the second part 222 has multiple limiting slides 24. Each limiting slide 24 is distributed at intervals around the axis of the funnel body 21.

[0055] like Figure 1 , 4 As shown in Figures 10 and 11, the lifting seat 4 slides on the hollow columnar part 212, the lower end 61 of the elastic steel wire is fixed on the lifting seat 4, the upper end 62 of the elastic steel wire passes through the corresponding limiting slide 24, the expansion membrane 3 has a conical structure, the first end 31 of the expansion membrane is fixed to the upper edge of the funnel body 21, and the second end 32 of the expansion membrane is fixed to the upper end 62 of each elastic steel wire.

[0056] The lifting platform 4 has an upper working position and a lower working position. When the lifting platform 4 is in the lower working position, see... Figure 1 and 2 The upper end 62 of the elastic steel wire is adjacent to the upper end of the limiting slide 24, and the main body of the expansion membrane 3 is hidden in the storage space 23; when the lifting seat 4 is in the upper working position, see Figure 3 and 4 The upper end 62 of the elastic steel wire passes through the upper end of the sampling funnel 2, causing the expansion membrane 3 to unfold upward to form an expansion cone-shaped space 33 that is connected to the upper end of the cone-shaped part 211.

[0057] The lifting mechanism 5 is used to drive the lifting seat 4 to move up and down, so that the lifting seat 4 can switch between the upper working position and the lower working position.

[0058] This application provides a cone-shaped outer shell 22 on the outside of the cone-shaped part 211 to form a storage space 23 for storing the expanded membrane 3. This facilitates storage, transportation and deployment. When the nearshore sediment capture device is deployed, the lifting mechanism 5 drives the lifting seat 4 and the elastic steel wire 6 to move upward, thereby enabling the expanded membrane 3 to expand outward from the upper end of the frame 1, breaking through the limitations of the frame 1 and forming an expanded cone-shaped space 33 connected to the upper end of the cone-shaped part 211, effectively increasing the size of the opening 711 at the uppermost end of the sampling funnel 2.

[0059] like Figure 5 and 8 As shown, in this embodiment, the second part 222 is fixed to the outer wall of the cone-shaped part 211 by a plurality of connecting blocks 25, and each connecting block 25 is distributed at intervals around the axis of the funnel body 21; the limiting slide 24 is located between two adjacent connecting blocks 25.

[0060] In this embodiment, the first end 31 of the expanding membrane is fixed to the inner ring of the upper edge of the funnel body 21. This arrangement allows particles and the like falling into the expanding membrane 3 to enter the cone-shaped portion 211 more smoothly.

[0061] like Figure 3 and 4 As shown, in this embodiment, the upper end 62 of the elastic steel wire is fixed with an arc-shaped portion 63, which is connected to the second end 32 of the expansion membrane. The arc-shaped portion 63 increases the connection area with the expansion membrane 3, making the expanded membrane 3 more standard in size after unfolding and the surface of the formed expansion cone-shaped space 33 smoother, which facilitates the sliding of particles into the cone-shaped portion 211.

[0062] like Figure 3 , 12 As shown in Figure 13, in this embodiment, a sample storage mechanism 7 is also included, which includes:

[0063] A sealing disc 71 is fixed on the frame 1. The sealing disc 71 has an opening 711. The lower end of the hollow columnar part 212 passes through the opening 711 and is flush with the lower end surface of the sealing disc 71.

[0064] A rotating frame 72 is rotatably mounted below a sealing disk 71. Multiple sampling bottles 73 are detachably mounted on the rotating frame 72. The upper opening 711 of the sampling bottle 73 is sealed to the lower end face of the sealing disk 71.

[0065] A rotary switching motor 74 is used to drive the rotating frame 72 to rotate, so that the corresponding sampling bottle 73 rotates to face the lower opening 711 of the hollow columnar part 212.

[0066] When collecting particulate matter, the rotary switching motor 74 drives the rotating frame 72 to rotate, so that the opening 711 of a sampling bottle 73 is directly opposite the lower opening 711 of the hollow cylindrical part 212. In this way, the particulate matter falling into the extended cone-shaped space 33 passes through the cone-shaped part 211 and the hollow cylindrical part 212 in sequence, and finally falls into the sampling bottle 73.

[0067] As shown in Figure 13, in this embodiment, the outer wall of the sampling bottle 73 has an annular groove 731, and the rotating frame 72 has an elastic buckle 721. The sampling bottle 73 is secured to the corresponding elastic buckle 721 through the annular groove 731. The distance between the upper and lower side walls of the annular groove 731 is the same as the height of the elastic buckle 721. This design facilitates accurate positioning of the sampling bottle 73 and makes installation and removal very convenient.

[0068] like Figure 3 As shown, in this embodiment, the lower end face of the sealing disc 71 has an annular limiting protrusion 712, and the upper end of the sampling bottle 73 contacts and engages with the annular limiting protrusion 712. The annular limiting protrusion 712 can limit the position of the sampling bottle 73, ensuring accurate radial positioning, so that it can be precisely aligned with the lower opening 711 of the hollow columnar portion 212 during sampling.

[0069] like Figure 13 As shown in this embodiment, the upper end face of the sampling bottle 73 has an annular groove 732, and a sealing ring 733 is installed on the annular groove 732. The sealing ring 733 can reliably seal with the sealing disc 71, effectively preserving the sample collected by the sampling bottle 73.

[0070] like Figure 3 As shown, in this embodiment, the lifting mechanism 5 includes:

[0071] Lead screw 51 is rotatably mounted on frame 1;

[0072] Multiple guide rods 52 are installed on the frame 1. The lifting seat 4 is sleeved on the guide rods 52 and the lead screw 51, and the lifting seat 4 is engaged with the lead screw 51.

[0073] The drive motor 53 is mounted on the frame 1 and is used to drive the lead screw 51 to rotate, thereby driving the lifting seat 4 to move up and down.

[0074] In other embodiments, the lifting mechanism 5 may also be an electric push rod.

[0075] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A nearshore sediment capture device, characterized in that, It includes a frame, sampling funnel, expansion membrane, lifting mechanism, lifting base, and multiple elastic steel wires; The sampling funnel is fixed on the frame, and the upper end of the sampling funnel is located in the upper part of the frame. The sampling funnel includes a funnel body and a conical outer shell. The funnel body has a conical part and a hollow cylindrical part connected to the lower end of the conical part. The conical outer shell is located outside the conical part and has a first part located above and a second part located below. The second part is fixed to the outer wall of the conical part, and a storage space is formed between the first part and the conical part. The second part or the area corresponding to the outer wall of the conical part and the second part has multiple limiting slides, and each limiting slide is distributed at intervals around the axis of the funnel body. The lifting seat slides on the hollow columnar part, the lower end of the elastic steel wire is fixed on the lifting seat, the upper end of the elastic steel wire passes through the corresponding limiting slide, the expansion membrane has a conical structure, the first end of the expansion membrane is fixed to the upper edge of the funnel body, and the second end of the expansion membrane is fixed to the upper end of each elastic steel wire. The lifting seat has an upper working position and a lower working position. When the lifting seat is in the lower working position, the upper end of the elastic steel wire is adjacent to the upper end of the limiting slide, and the main body of the expansion film is hidden in the storage space. When the lifting seat is in the upper working position, the upper end of the elastic steel wire passes through the upper end of the sampling funnel, driving the expansion film to unfold upward to form an expansion cone-shaped space connected to the upper end of the cone-shaped part. The lifting mechanism is used to move the lifting seat up and down, so that the lifting seat can switch between the upper working position and the lower working position.

2. The nearshore sediment capture device as described in claim 1, characterized in that, The second part is fixed to the outer wall of the cone-shaped part by multiple connecting blocks, and each connecting block is distributed at intervals around the axis of the funnel body; the limiting slide is located between two adjacent connecting blocks.

3. The nearshore sediment capture device as described in claim 1, characterized in that, The first end of the expansion membrane is fixed to the inner ring of the upper edge of the funnel body.

4. The nearshore sediment capture device as described in claim 1, characterized in that, The upper end of the elastic steel wire is fixed with an arc-shaped part, which is connected to the second end of the expansion membrane.

5. The nearshore sediment capture device as described in claim 1, characterized in that, It also includes a sample storage mechanism, which comprises: A sealing disc, fixed on a frame, has an opening, and the lower end of the hollow columnar portion passes through the opening and is flush with the lower end face of the sealing disc. A rotating frame is rotatably mounted below the sealing disk. Multiple sampling bottles are detachably mounted on the rotating frame, and the upper opening of the sampling bottle is sealed to the lower end face of the sealing disk. A rotary switching motor is used to drive the rotating frame to rotate, so that the corresponding sampling bottle is rotated to face the lower opening of the hollow columnar part.

6. The nearshore sediment capture device as described in claim 5, characterized in that, The outer wall of the sampling bottle has an annular groove, and the rotating frame has an elastic buckle. The sampling bottle is secured to the corresponding elastic buckle through the annular groove. The distance between the upper and lower side walls of the annular groove is the same as the height of the elastic buckle.

7. The nearshore sediment capture device as described in claim 6, characterized in that, The lower end face of the sealing disc has an annular limiting protrusion, and the upper end of the sampling bottle contacts and engages with the annular limiting protrusion.

8. The nearshore sediment capture device as described in claim 5, characterized in that, The sampling bottle has an annular groove on its upper end face, and a sealing ring is installed on the annular groove.

9. The nearshore sediment capture device as described in claim 1, characterized in that, The lifting mechanism includes: The lead screw is rotatably mounted on the machine frame; Multiple guide rods are installed on the frame, and the lifting seat is sleeved on the guide rods and the lead screw, and the lifting seat is engaged with the lead screw; The drive motor, mounted on the frame, drives the lead screw to rotate, thereby moving the lifting platform up and down.

10. The nearshore sediment capture device as described in claim 1, characterized in that, The lifting mechanism is an electric push rod.

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