Offshore sediment capturing device

Abstract

The invention discloses an offshore sediment capturing device which comprises a rack, a sampling funnel, an expansion film, a lifting mechanism, a lifting seat and an elastic steel wire, the sampling funnel comprises a funnel body and a conical shell; the funnel body is provided with a conical part and a hollow columnar part; the conical shell is located on the outer side of the conical part, and a storage space is formed by the conical shell and the conical part. One end of the elastic steel wire is connected with the lifting seat, one end of the elastic steel wire penetrates through the limiting slide way, one end of the expanding film is fixed to the upper edge of the funnel body, and the other end of the expanding film is fixed to the upper end of the elastic steel wire; the lifting base is provided with an upper working position and a lower working position. The lifting mechanism is used for driving the lifting base to move up and down. The lifting seat and the elastic steel wire are driven by the lifting mechanism to move upwards, so that the expanding film can be expanded towards the outer side of the upper end of the rack, the limitation of the rack is broken through, an expanding conical space communicated with the upper end of the conical part is formed, and the opening size of the uppermost end of the sampling funnel is effectively increased.

Description

Technical Field

[0001] The present invention relates to the field of sampling equipment, in particular to an offshore sediment capture device. Background Art

[0002] Marine particulate matter records relevant information about marine physical, chemical and biological processes. A sediment capture device is a sampling device placed in seawater to collect marine sedimentary particulate matter. The device can obtain sedimentary particulate matter within a certain period of time. For example, the patent document with announcement number CN 204330417 U discloses a multifunctional shallow sea time series sediment capture and observation device.

[0003] The sediment capture device mainly collects sediment into the sampling bottle through a conical sampling funnel. During actual sampling, when the sampling funnel cone angle is the same, the upper opening size of the sampling funnel is the largest. The more samples collected, the higher the collection efficiency and accuracy. Due to the size of the rack and considerations such as storage, transportation and placement, the shape of the existing sampling funnel is fixed and cannot break through the limitations of the rack. Summary of the invention

[0004] In view of the above problems, the present invention provides an offshore sediment capture device.

[0005] The technical solution adopted by the present invention is as follows: An offshore sediment capture device comprises a frame, a sampling funnel, an expansion membrane, a lifting mechanism, a lifting seat and a plurality of elastic steel wires; The sampling funnel is fixed on the frame, and the upper end of the sampling funnel is located in the area where the upper end of the frame is located; the sampling funnel includes a funnel body and a conical shell; the funnel body has a conical portion and a hollow cylindrical portion connected to the lower end of the conical portion; the conical shell is located on the outside of the conical portion, and the conical shell has a first part located at the top and a second part located at the bottom, the second part is fixed to the outer side wall of the conical portion, a storage space is formed between the first part and the conical portion, and the second part or the outer side wall of the conical portion and the corresponding area of ​​the second part have a plurality of limiting slides, and each limiting slide is spaced around the axis of the funnel body; The lifting seat sliding sleeve is 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 limit slide, the expansion membrane is a cone 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 slideway, and the main body of the expansion membrane 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 membrane to expand upward to form an expansion cone space connected to the upper end of the cone; The lifting mechanism is used to drive the lifting seat to move up and down, so that the lifting seat can be switched between the upper working position and the lower working position.

[0006] The present application sets a conical shell on the outside of the conical part to form a storage space for storing the expansion membrane, which is convenient for storage, transportation and deployment. After the offshore sediment capture device is deployed, the lifting seat and the elastic steel wire are driven upward by the lifting mechanism, so that the expansion membrane can be expanded to the outside of the upper end of the frame, breaking through the limitation of the frame, forming an expanded conical space connected with the upper end of the conical part, and effectively increasing the opening size of the uppermost end of the sampling funnel.

[0007] In one embodiment of the present invention, the second portion is fixed to the outer side wall of the conical portion 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.

[0008] In one embodiment of the present invention, the first end of the expansion membrane is fixed to the inner circle of the upper edge of the funnel body.

[0009] This arrangement enables particles and the like that fall into the expansion membrane to enter the conical portion more smoothly.

[0010] In one embodiment of the present invention, an arc portion is fixed to the upper end of the elastic steel wire, and the arc portion is connected to the second end of the expansion membrane.

[0011] The arc portion can increase the connection area with the expansion membrane, so that the size of the expansion membrane after unfolding is relatively standard and the surface of the formed expansion cone space is relatively smooth, which facilitates the particles to slide into the cone portion.

[0012] In one embodiment of the present invention, a sample storage mechanism is further included, and the sample storage mechanism includes: A sealing disk is fixed on the frame, the sealing disk has an opening, the lower end of the hollow columnar portion passes through the opening and is flush with the lower end surface of the sealing disk; A rotating frame, rotatably mounted below the sealing disk, on which a plurality of sampling bottles are detachably mounted, wherein the upper openings of the sampling bottles are in sealing cooperation with the lower end surface of the sealing disk; The rotary switching motor is used to drive the rotating frame to rotate so that the corresponding sampling bottle rotates to face the lower end opening of the hollow columnar part.

[0013] When collecting particulate matter, the rotating switching motor drives the rotating frame to rotate so that the opening of a sampling bottle is opposite to the lower end opening of the hollow cylindrical part. In this way, the particulate matter falling into the expanded conical space passes through the conical part and the hollow cylindrical part in turn, and finally falls into the sampling bottle.

[0014] In one embodiment of the present invention, the outer wall of the sampling bottle has an annular groove, and the rotating frame has an elastic buckle. The sampling bottle is clamped on 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.

[0015] This arrangement facilitates accurate positioning of the sampling bottle and is also very convenient for installation and removal.

[0016] In one embodiment of the present invention, the lower end surface of the sealing disk has an annular limiting protrusion, and the upper end of the sampling bottle contacts and cooperates with the annular limiting protrusion.

[0017] The annular limiting convex portion is provided to limit the position so that the radial position of the sampling bottle is accurate, so that it can be accurately aligned with the lower end opening of the hollow columnar portion during sampling.

[0018] In one embodiment of the present invention, the upper end surface of the sampling bottle is provided with an annular groove, and a sealing ring is installed on the annular groove.

[0019] The sealing ring can reliably seal with the sealing disk to effectively preserve the samples collected by the sampling bottle.

[0020] In one embodiment of the present invention, the lifting mechanism comprises: The screw rod is rotatably mounted on the frame; A plurality of guide rods are installed on the frame, the lifting seat is covered on the guide rods and the lead screw, and the lifting seat is meshed with the lead screw; The driving motor is installed on the frame and is used to drive the screw to rotate, thereby driving the lifting seat to move up and down.

[0021] In one embodiment of the present invention, the lifting mechanism is an electric push rod.

[0022] The beneficial effects of the present invention are as follows: the present application sets a conical outer shell on the outside of the conical portion to form a storage space for storing the expansion membrane, which is convenient for storage, transportation and deployment. After the offshore sediment capture device is deployed, the lifting mechanism drives the lifting seat and the elastic steel wire to move upward, so that the expansion membrane can be expanded toward the outside of the upper end of the frame, breaking through the limitation of the frame, forming an expanded conical space connected to the upper end of the conical portion, and effectively increasing the opening size of the uppermost end of the sampling funnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1is a schematic diagram of the offshore sediment capture device when the lifting seat is in the lower working position; Figure 2 is a schematic diagram of the offshore sediment capture device from another angle when the lifting seat is in the lower working position; Figure 3 is a schematic diagram of the offshore sediment capture device when the lifting seat is in the upper working position; Figure 4 is a schematic diagram of the offshore sediment capture device from another angle when the lifting seat is in the upper working position; Figure 5 is a schematic diagram of the sampling funnel; Figure 6 yes Figure 5 The enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the sampling funnel from another angle; Figure 8 yes Figure 7 The enlarged view of point B in the middle; Fig. 9 It is a top view of the sampling funnel, lifting seat, elastic steel wire and expansion membrane; Fig.10 yes Fig. 9 Sectional view of AA in the middle; Fig.11 yes Fig.10 Enlarged view of point C in the middle; Fig.12 is a schematic diagram of an offshore sediment capture device with some structures omitted; Fig.13 is a schematic diagram of the rotating rack and sampling bottle.

[0024] The reference numerals in the figures are: 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. Limit 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. Screw rod; 52. Guide rod; 53. Driving 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 disk; 711. Opening; 712. Annular limiting convex part; 72. Rotating frame; 721. Elastic buckle; 73. Sampling bottle; 731. Annular slot; 732. Annular groove; 733. Sealing ring; 74. Rotating switching motor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] The present invention is described in detail below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 13 As shown, an offshore sediment capture device includes a frame 1, a sampling funnel 2, an expansion membrane 3, a lifting mechanism 5, a lifting seat 4 and a plurality of elastic steel wires 6; like Figure 5 , 6 , 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 area where the upper end of the frame 1 is located; the sampling funnel 2 includes a funnel body 21 and a conical shell 22; the funnel body 21 has a conical portion 211 and a hollow cylindrical portion 212 connected to the lower end of the conical portion 211; the conical shell 22 is located on the outside of the conical portion 211, and the conical shell 22 has a first portion 221 located at the top and a second portion 222 located at the bottom, the second portion 222 is fixed to the outer side wall of the conical portion 211, a storage space 23 is formed between the first portion 221 and the conical portion 211, and the second portion 222 or the outer side wall of the conical portion 211 and the corresponding area of ​​the second portion 222 have a plurality of limiting slides 24, and each limiting slide 24 is distributed at intervals around the axis of the funnel body 21; like Figure 1 ,4 , 10 and 11, the lifting seat 4 is slidably sleeved on the hollow cylindrical portion 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 is a cone-shaped 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; The lifting seat 4 has an upper working position and a lower working position. When the lifting seat 4 is in the lower working position, Figure 1 and 2 , the upper end 62 of the elastic 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, Figure 3 and 4 The upper end 62 of the elastic steel wire passes through the upper end of the sampling funnel 2, driving the expansion membrane 3 to expand upward to form an expansion cone space 33 connected to the upper end of the cone 211; The lifting mechanism 5 is used to drive the lifting seat 4 to move up and down, so that the lifting seat 4 can be switched between the upper working position and the lower working position.

[0030] In the present application, a conical shell 22 is arranged on the outside of the conical portion 211 to form a storage space 23 for storing the expansion membrane 3, which is convenient for storage, transportation and deployment. After the offshore sediment capture device is deployed, the lifting seat 4 and the elastic steel wire 6 are driven upward by the lifting mechanism 5, so that the expansion membrane 3 can be expanded toward the outside of the upper end of the frame 1, breaking through the limitation of the frame 1, forming an expanded conical space 33 connected to the upper end of the conical portion 211, and effectively increasing the size of the opening 711 at the upper end of the sampling funnel 2.

[0031] like Figure 5 and 8 As shown, in this embodiment, the second portion 222 is fixed to the outer wall of the conical portion 211 through a plurality of connecting blocks 25 , and the connecting blocks 25 are spaced apart around the axis of the funnel body 21 ; the limiting slide 24 is located between two adjacent connecting blocks 25 .

[0032] In this embodiment, the first end 31 of the expansion membrane is fixed to the inner circle of the upper edge of the funnel body 21. This arrangement enables particles falling into the expansion membrane 3 to enter the conical portion 211 more smoothly.

[0033] like Figure 3 and 4 As shown, in this embodiment, the upper end 62 of the elastic steel wire is fixed with an arc portion 63, and the arc portion 63 is connected to the second end 32 of the expansion membrane. The arc portion 63 can increase the connection area with the expansion membrane 3, so that the expansion membrane 3 has a more standard size after expansion and the surface of the formed expansion cone space 33 is smoother, which facilitates the particles to slide into the cone portion 211.

[0034] like Figure 3 , 12 As shown in FIG. 13 , in this embodiment, a sample storage mechanism 7 is also included. The sample storage mechanism 7 includes: The sealing disk 71 is fixed on the frame 1. The sealing disk 71 has an opening 711. The lower end of the hollow columnar portion 212 passes through the opening 711 and is flush with the lower end surface of the sealing disk 71. A rotating frame 72 is rotatably mounted below the sealing disk 71. A plurality of sampling bottles 73 are detachably mounted on the rotating frame 72. The upper openings 711 of the sampling bottles 73 are sealed with the lower end surface of the sealing disk 71. The 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 end opening 711 of the hollow columnar portion 212 .

[0035] When collecting particulate matter, the rotating switching motor 74 drives the rotating frame 72 to rotate, so that the opening 711 of a sampling bottle 73 is opposite to the lower end opening 711 of the hollow cylindrical portion 212, so that the particulate matter falling into the expanded conical space 33 passes through the conical portion 211 and the hollow cylindrical portion 212 in turn, and finally falls into the sampling bottle 73.

[0036] As shown in FIG13 , in this embodiment, the outer wall of the sampling bottle 73 has an annular slot 731, and the rotating frame 72 has an elastic buckle 721. The sampling bottle 73 is clamped on the corresponding elastic buckle 721 through the annular slot 731, and the distance between the upper and lower side walls of the annular slot 731 is the same as the height of the elastic buckle 721. This arrangement facilitates accurate positioning of the sampling bottle 73, and is also very convenient for installation and removal.

[0037] like Figure 3 As shown, in this embodiment, the lower end surface of the sealing disk 71 has an annular limiting protrusion 712, and the upper end of the sampling bottle 73 contacts and cooperates with the annular limiting protrusion 712. The annular limiting protrusion 712 is provided to limit the position so that the radial position of the sampling bottle 73 is accurate, so that it can be accurately aligned with the lower end opening 711 of the hollow columnar portion 212 during sampling.

[0038] like Fig.13 As shown, in this embodiment, the upper end surface 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 disk 71, and effectively preserve the sample collected by the sampling bottle 73.

[0039] like Figure 3 As shown, in this embodiment, the lifting mechanism 5 includes: The screw rod 51 is rotatably mounted on the frame 1; A plurality of guide rods 52 are mounted on the frame 1, and the lifting seat 4 is sleeved on the guide rods 52 and the screw rod 51, and the lifting seat 4 is meshed with the screw rod 51; The driving motor 53 is mounted on the frame 1 and is used to drive the screw rod 51 to rotate, thereby driving the lifting base 4 to move up and down.

[0040] In other embodiments, the lifting mechanism 5 may also be an electric push rod.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. An offshore sediment capture device, characterized in that: It includes a frame, a sampling funnel, an expansion membrane, a lifting mechanism, a lifting seat and a plurality of elastic steel wires; The sampling funnel is fixed on the frame, and the upper end of the sampling funnel is located in the area where the upper end of the frame is located; the sampling funnel includes a funnel body and a conical shell; the funnel body has a conical portion and a hollow cylindrical portion connected to the lower end of the conical portion; the conical shell is located on the outside of the conical portion, and the conical shell has a first part located at the top and a second part located at the bottom, the second part is fixed to the outer side wall of the conical portion, a storage space is formed between the first part and the conical portion, and the second part or the outer side wall of the conical portion and the corresponding area of ​​the second part have a plurality of limiting slides, and each limiting slide is spaced around the axis of the funnel body; The lifting seat sliding sleeve is 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 limit slide, the expansion membrane is a cone 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 slideway, and the main body of the expansion membrane 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 membrane to expand upward to form an expansion cone space connected to the upper end of the cone; The lifting mechanism is used to drive the lifting seat to move up and down, so that the lifting seat can be switched between the upper working position and the lower working position.

2. The offshore sediment capture device according to claim 1, characterized in that: The second part is fixed to the outer side wall of the conical part through a plurality of connecting blocks, and the connecting blocks are distributed at intervals around the axis of the funnel body; the limiting slideway is located between two adjacent connecting blocks.

3. The offshore sediment capture device according to claim 1, characterized in that: The first end of the expansion membrane is fixed to the inner circle of the upper edge of the funnel body.

4. The offshore sediment capture device according to claim 1, characterized in that: An arc-shaped portion is fixed to the upper end of the elastic steel wire, and the arc-shaped portion is connected to the second end of the expansion membrane.

5. The offshore sediment capture device according to claim 1, characterized in that: Also included is a sample storage mechanism, the sample storage mechanism comprising: A sealing disk is fixed on the frame, the sealing disk has an opening, the lower end of the hollow columnar portion passes through the opening and is flush with the lower end surface of the sealing disk; A rotating frame, rotatably mounted below the sealing disk, on which a plurality of sampling bottles are detachably mounted, wherein the upper openings of the sampling bottles are in sealing cooperation with the lower end surface of the sealing disk; The rotary switching motor is used to drive the rotating frame to rotate so that the corresponding sampling bottle rotates to face the lower end opening of the hollow columnar part.

6. The offshore sediment capture device according to 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 clamped on 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.

7. The offshore sediment capture device according to claim 6, characterized in that: The lower end surface of the sealing disk is provided with an annular limiting convex portion, and the upper end of the sampling bottle is in contact with and cooperates with the annular limiting convex portion.

8. The offshore sediment capture device according to claim 5, characterized in that: The upper end surface of the sampling bottle is provided with an annular groove, and a sealing ring is installed on the annular groove.

9. The offshore sediment capture device according to claim 1, characterized in that: The lifting mechanism comprises: The screw rod is rotatably mounted on the frame; A plurality of guide rods are installed on the frame, the lifting seat is covered on the guide rods and the lead screw, and the lifting seat is meshed with the lead screw; The driving motor is installed on the frame and is used to drive the screw to rotate, thereby driving the lifting seat to move up and down.

10. The offshore sediment capture device according to claim 1, characterized in that: The lifting mechanism is an electric push rod.

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