Six-channel columnar gravity sampler

Abstract

The utility model belongs to the technical field of seabed sediment sampling, and particularly relates to a six-channel columnar gravity sampler which comprises a lifting frame, an outer support, a connecting frame, a switch frame, a buckle sleeve, a main welding frame, a buckle frame, a sample tube, an adjusting rod, an upper cover assembly and a lower cover assembly. When the sample tube is hoisted after sampling is finished, the buckle sleeve triggers the switch frame, so that the upper cover assembly and the lower cover assembly respectively seal the upper end and the lower end of the sample tube until the water surface, and the sample can be taken down in sequence after the bolt A is inserted. According to the utility model, the lengthened six-channel sample tube is arranged, and the limitation of a traditional sampler in deep sampling and multi-point synchronous sampling is broken through by optimizing the length design and the multi-channel layout, so that one-time multi-point synchronous sampling is realized, and the efficiency is greatly improved; according to the utility model, the purity and the integrity of the sample are ensured, and the applicability and the operation convenience of the equipment are improved at the same time.

Description

Technical Field

[0001] This invention belongs to the field of seabed sediment sampling technology, specifically a six-channel columnar gravity sampler. Background Technology

[0002] Seafloor sediment sampling is a crucial step in marine research, environmental monitoring, and resource exploration. Analysis of seafloor sediment samples provides vital information on environmental evolution, pollution levels, and resource distribution. Seafloor sediment samplers are essential tools for studying seafloor sediments, providing fundamental data for multidisciplinary marine research.

[0003] The columnar gravity sediment sampler is a common seabed sampling device that uses gravity sinking and a columnar structure to obtain sediment samples. It has the following characteristics:

[0004] (1) Simple structure: sampling is performed by natural sinking under gravity, without the need for a complex power device.

[0005] (2) High integrity: The columnar design reduces sample disturbance and helps maintain the layered structure of the sediment.

[0006] (3) Wide applicability: Applicable to various water depths and sedimentation environments.

[0007] Traditional single-channel columnar gravity sediment samplers can only collect a single sample at the same location, resulting in low sampling efficiency and failing to meet the needs of large-scale simultaneous sampling. With the increasing demands of marine research, multi-channel sampling technology has gradually become a key development direction for sediment sampling equipment. It collects samples simultaneously through multiple channels, improving sampling efficiency and making it suitable for large-area or stratified studies. It also allows for comparative studies of various analyses and is therefore widely used.

[0008] Existing multi-channel column gravity mud samplers can achieve synchronous sampling at the same location. Their multi-channel, independently sealed design ensures that samples from different channels do not interfere with each other, guaranteeing sample purity. Furthermore, the sampling tubes can be quickly replaced, resulting in high sampling efficiency. However, existing multi-channel column gravity mud samplers have the following drawbacks:

[0009] (1) Insufficient column length: Most samplers are about 0.5 meters long, which limits the sampling capacity of deep sediments.

[0010] (2) Limited number of multi-channels: Existing multi-channel samplers usually have 3 to 4 channels, which is difficult to meet the needs of more complex research.

[0011] (3) Insufficient sample protection: During the sample lifting process, the sample may be mixed or lost due to ocean current disturbance or insufficient sealing. Utility Model Content

[0012] In order to overcome the above-mentioned shortcomings of existing multi-channel columnar gravity mud samplers, the purpose of this utility model is to provide a six-channel columnar gravity sampler.

[0013] The objective of this utility model is achieved through the following technical solution:

[0014] This utility model includes a hoisting frame, an outer support, a connecting frame, a switch frame, a snap-fit ​​sleeve, a main welding frame, and a sampling assembly. The upper end of the hoisting frame is connected to a winch, and the lower end of the hoisting frame can move relative to the top of the outer support. A connecting frame is located below the top of the outer support. The connecting frame includes a connecting plate B and a connecting shaft. The connecting plate B is connected to the lower end of the hoisting frame, and the upper end of the connecting shaft is fixed to the connecting plate B. The lower end of the connecting shaft is connected to the main welding frame. The main welding frame includes a vertical plate, a main shaft, a supporting cylindrical tube, and a clamping plate A. The main shaft is fixed to the top of the supporting cylindrical tube, or the main shaft and the supporting cylindrical tube are an integral structure. Both the main shaft and the supporting cylindrical tube are hollow internally. The lower end of the connecting shaft is inserted into the main shaft and the supporting cylindrical tube, and can move relative to the main shaft. Six vertical plates are evenly fixed to the outer side of the supporting cylindrical tube along the circumferential direction, and a clamping plate A is fixed to each vertical plate. A switch frame and a snap-fit ​​sleeve are respectively fitted onto the main shaft. The switch frame is fixedly connected to the main shaft, and the switch frame is provided with six lifting hooks along the circumferential direction; the buckle sleeve is movable relative to the main shaft, and the buckle sleeve has a radially retractable pin C, which passes through the main shaft and is linked with the connecting shaft; each of the vertical plates is equipped with a sampling assembly, which includes a buckle frame, a sample tube, an adjusting rod, an upper cover assembly, and a lower cover assembly. The buckle frame is provided with a clamping plate B, and the sample tube is clamped and fixed by clamping plate A and clamping plate B. The adjusting rod passes through the buckle frame, and the upper end of the adjusting rod is the adjusting end. The lower end of the adjusting rod is connected to the lower cover assembly. The upper cover assembly is rotatably mounted on the vertical plate. One end of the upper cover assembly is locked by a corresponding hook and disengages from the hook after the hook rises. The other end of the upper cover assembly hooks the lower cover assembly before sampling. When the upper cover assembly disengages from the hook, the lower cover assembly flips down by the action of the adjusting rod, and together with the upper cover assembly, seals the upper and lower ends of the sample tube.

[0015] Wherein: the hoisting frame includes a hoisting plate, a guide tube and a connecting tube A. The hoisting plate is connected to the winch. The upper end of the connecting tube A is fixedly connected to the hoisting plate. The lower end of the connecting tube A is connected to the connecting tube B set on the top of the outer support through a pin A. The upper end of the guide tube is fixedly connected to the hoisting plate. The lower end of the guide tube passes through the top of the outer support and is connected to the connecting frame.

[0016] The top of the outer support is provided with a reference plate and a connecting plate A from top to bottom. A connecting pipe B is fixedly connected to the center of the reference plate and the connecting plate A. The connecting frame is located below the connecting plate A. Multiple legs are evenly fixedly connected to the side walls of the reference plate and the connecting plate A in the circumferential direction. A base plate is fixedly connected to the bottom of each leg.

[0017] The connecting shaft is a hollow shaft. The lower end of the connecting shaft has a strip hole A along the axial direction for connecting with the main welding frame. Above the strip hole A, there is an annular groove for connecting with the pin C in the snap sleeve.

[0018] The switch frame includes a locking hook, an upper locking plate, a lower locking plate, a pin B, and a locking sleeve. A locking sleeve is fixedly connected between the upper and lower locking plates, and the connecting shaft passes through the locking sleeve. Six sets of locking hook holes are respectively opened along the circumferential direction on the upper and lower locking plates, and each set of locking hook holes consists of two inner and two outer holes arranged radially. The locking hook is in the shape of an inverted "U". The length of one side of the "U" opening is greater than that of the other side. One side of the "U" opening passes through the two inner locking hook holes in one set on the upper and lower locking plates, and the other side of the "U" opening passes through the two outer locking hook holes in one set on the upper and lower locking plates. A pin B is provided at one end of the "U" opening to prevent the locking hook from disengaging from the upper and lower locking plates. Before sampling, the other side of the "U" opening locks one end of the upper cover assembly. During the sampling and lifting process, the other side of the "U" opening is pushed up by the buckle sleeve, thereby releasing the upper cover assembly.

[0019] The snap-fit ​​sleeve includes a snap-fit ​​sleeve, a limiting sleeve, a pin cap, a pin C, a spring A, and a lifting eye nut. The snap-fit ​​sleeve is movably fitted onto the main shaft. The snap-fit ​​sleeve has a threaded hole communicating with the interior along its radial direction. One end of the limiting sleeve is threadedly connected to the threaded hole, and the other end of the limiting sleeve is threadedly connected to the pin cap. The pin C passes through the limiting sleeve and the pin cap. The inner end of the pin C is used for linkage with the connecting shaft, and the outer end of the pin C is connected to the lifting eye nut. The internal space enclosed by the limiting sleeve and the pin cap houses the spring A. The spring A is fitted onto the pin C, and both ends of the spring A abut against the shoulders on the pin cap and the pin C, respectively. The main shaft has a boss that limits the snap-fit ​​sleeve.

[0020] The buckle frame includes a column and a clamping plate B. The column is a hollow structure, through which the adjusting rod passes and can move relative to it. The upper and lower ends of the column are provided with clamping plates B. The upper and lower ends of the outer side of each column are provided with clamping plates A. Both clamping plates A and B are semi-circular. The clamping plates A and B clamp the cylindrical sample tube in the middle and are connected by a hinge bolt.

[0021] The adjusting rod includes a ball-head handle, a spring B, a round rod A, a square rod A, a connecting plate C, a square rod B, and a round rod B. The upper and lower ends of the connecting plate C are respectively hinged to the lower end of the square rod A and the upper end of the square rod B. The lower end of the round rod A is fixedly connected to the upper end of the square rod A. The upper end of the round rod A is provided with a ball-head handle. The upper end of the round rod B is fixedly connected to the lower end of the square rod B. The lower end of the round rod B is connected to the lower cover assembly. A spring B is sleeved on the round rod A. The square rod A and the connecting plate C are relatively movable and pass through the buckle frame. The two ends of the spring B abut against the ball-head handle and the buckle frame, respectively.

[0022] The upper cover assembly includes an upper cover, a hook, a spring plate, an upper connecting rod, and a spring C. One end of the upper connecting rod is hinged to the upright plate, and the other end of the upper connecting rod is connected to the upper cover. The portion between the two ends of the upper connecting rod is also connected to the upright plate via the spring C. One end of the spring plate is connected to the upper connecting rod, and the other end of the spring plate has an opening. The locking hook is inserted into the opening before sampling. One end of the hook is fixed to the upper connecting rod, and the other end of the hook is hook-shaped and used to hook the lower cover assembly before sampling.

[0023] The lower cover assembly includes a clamping block, a lower cover, a hexagonal head bolt, and a nut. One end of the clamping block is connected to the lower cover, and the other end of the clamping block has an adjustment rod hole along the thickness direction. The lower end of the adjustment rod is inserted into the adjustment rod hole. The other end of the clamping block has a gap extending inward from the middle to the adjustment rod hole. After the adjustment rod is inserted into the adjustment rod hole, it is clamped and fixed by the hexagonal head bolt and the nut. The hexagonal head bolt is also used to be hooked by the other end of the upper cover assembly before sampling.

[0024] The advantages and positive effects of this utility model are as follows:

[0025] 1. This utility model features an extended six-channel sample tube. Through optimized length design and multi-channel layout, it overcomes the limitations of traditional samplers in deep sampling and multi-point synchronous sampling, achieving simultaneous multi-point sampling and greatly improving efficiency. This utility model ensures the purity and integrity of the sample while improving the applicability and ease of operation of the equipment. It is suitable for various scenarios such as marine research, environmental monitoring, and resource exploration, and has broad application prospects and market value.

[0026] 2. This utility model seals each sample tube after sampling using an upper cover assembly and a lower cover assembly, effectively avoiding sample contamination and cross-interference.

[0027] 3. This utility model adopts a modular design, which makes it easy for users to quickly assemble or disassemble according to their needs, thus improving the flexibility and adaptability of the equipment. Attached Figure Description

[0028] Figure 1This is a front view of the structure of this utility model;

[0029] Figure 2 This is one of the three-dimensional structural schematic diagrams of the present invention (the lower cover assembly is in the closed state);

[0030] Figure 3 This is the second three-dimensional structural schematic diagram of the present invention (the lower cover assembly is in the open state);

[0031] Figure 4 This is a three-dimensional structural diagram of the present invention after removing the outer support and retaining two sample tubes;

[0032] Figure 5 This is a three-dimensional structural diagram of the present invention after removing the hoisting frame, external support, and connecting frame;

[0033] Figure 6 This is a three-dimensional structural diagram of the hoisting frame, connecting frame, and main welding frame of this utility model;

[0034] Figure 7 This is a three-dimensional structural diagram of the connecting frame of this utility model;

[0035] Figure 8 This is a three-dimensional structural diagram of the connecting frame and switch frame of this utility model;

[0036] Figure 9 This is a three-dimensional structural diagram of the switch frame of this utility model;

[0037] Figure 10 This is a horizontal cross-sectional view of the buckle sleeve of this utility model;

[0038] Figure 11 This is a schematic diagram of the structure of the buckle frame of this utility model;

[0039] Figure 12 This is a three-dimensional structural diagram of the adjusting rod of this utility model;

[0040] Figure 13 This is a three-dimensional structural diagram of the upper cover assembly of this utility model;

[0041] Figure 14 This is a three-dimensional structural diagram of the lower cover assembly of this utility model;

[0042] Wherein: 1 is the hoisting frame, 101 is the hoisting plate, 102 is the guide tube, 103 is the connecting pipe A, 2 is the outer support, 201 is the support leg, 202 is the base plate, 203 is the connecting plate A, 204 is the connecting pipe B, 205 is the reference plate, 3 is the pin A, 4 is the connecting frame, 401 is the connecting plate B, 402 is the connecting shaft, 403 is the strip hole A, 404 is the annular groove, 5 is the switch frame, 5 01 is the locking hook, 502 is the upper locking plate, 503 is the lower locking plate, 504 is pin B, 505 is the locking hook hole, 506 is the locking sleeve, 6 is the snap-fit ​​sleeve, 601 is the snap-fit ​​sleeve, 602 is the limit sleeve, 603 is the pin cap, 604 is the pin C, 605 is the spring A, 606 is the eye nut, 607 is the threaded hole, 7 is the main welding frame, 701 is the vertical plate, 702 is the main shaft, and 703 is the support. Supporting round tube, 704 is clamping plate A, 705 is hinge bolt, 706 is strip hole B, 707 is boss, 708 is pin D, 8 is buckle bracket, 801 is column, 802 is clamping plate B, 9 is sample tube, 10 is adjusting rod, 1001 is ball head handle, 1002 is spring B, 1003 is round rod A, 1004 is square rod A, 1005 is connecting plate C, 1006 is square... Rod B, 1007 is round rod B, 1008 is pin E, 11 is upper cover assembly, 1101 is upper cover, 1102 is hook, 1103 is spring plate, 1104 is upper connecting rod, 1105 is opening, 1106 is spring C, 12 is lower cover assembly, 1201 is clamping block, 1202 is lower cover, 1203 is hexagonal head bolt, 1204 is nut, 1205 is adjusting rod hole. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings.

[0044] like Figures 1-5As shown, this utility model includes a hoisting frame 1, an outer support 2, a connecting frame 4, a switch frame 5, a snap-fit ​​sleeve 6, a main welding frame 7, and a sampling assembly. The upper end of the hoisting frame 1 is connected to a winch, and the lower end of the hoisting frame 1 can move relative to the top of the outer support 2. A connecting frame 4 is located below the top of the outer support 2. The connecting frame 4 includes a connecting plate B401 and a connecting shaft 402. The connecting plate B401 is connected to the lower end of the hoisting frame 1, and the upper end of the connecting shaft 402 is fixed to the connecting plate B401. The lower end of the connecting shaft 402 is connected to the main welding frame 7. The main welding frame 7 includes a vertical plate 7. 01. Main shaft 702, supporting round tube 703, and clamping plate A704. The main shaft 702 is fixed to the top of the supporting round tube 703, or the main shaft 702 and the supporting round tube 703 are an integral structure. Both the main shaft 702 and the supporting round tube 703 are hollow internal structures. The lower end of the connecting shaft 402 is inserted into the main shaft 702 and the supporting round tube 703, and can be connected to the main shaft 702 in a relatively vertical manner. Six vertical plates 701 are evenly fixed to the outer side of the supporting round tube 703 along the circumferential direction, and a clamping plate A704 is fixed to each vertical plate 701. Switch frames 5 are respectively sleeved on the main shaft 702. The snap-fit ​​sleeve 6 and the switch frame 5 are fixedly connected to the main shaft 702. The switch frame 5 has six lifting hooks 501 along the circumferential direction. The snap-fit ​​sleeve 6 and the main shaft 702 can move relative to each other. The snap-fit ​​sleeve 6 has a radially retractable pin C604. The pin C604 passes through the main shaft 702 and is linked with the connecting shaft 402. Each upright plate 701 is equipped with a sampling assembly, which includes a snap-fit ​​frame 8, a sample tube 9, an adjusting rod 10, an upper cover assembly 11, and a lower cover assembly 12. The snap-fit ​​frame 8 is equipped with a clamping plate B802. The sample tube 9 is connected to the clamping plate B802 through the clamping plate A704. 802 is clamped and fixed. The adjusting rod 10 passes through the buckle frame 8. The upper end of the adjusting rod 10 is the adjusting end. The lower end of the adjusting rod 10 is connected to the lower cover assembly 12. The upper cover assembly 11 is rotatably mounted on the upright plate 701. One end of the upper cover assembly 11 is locked by the corresponding locking hook 501 and disengages from the locking hook 501 after the locking hook 501 rises. The other end of the upper cover assembly 11 hooks the lower cover assembly 12 before sampling. When the upper cover assembly 11 disengages from the locking hook 501, the lower cover assembly 12 flips down by the action of the adjusting rod 10, and together with the upper cover assembly 11, seals the upper and lower ends of the sample tube 9.

[0045] like Figures 1-4 and Figure 6As shown, the hoisting frame 1 in this embodiment includes a hoisting plate 101, a guide tube 102, and a connecting tube A103. The hoisting plate 101 is connected to the winch. The upper end of the connecting tube A103 is fixedly connected to the hoisting plate 101. The lower end of the connecting tube A103 is connected to the connecting tube B204 provided on the top of the outer support 2 through a pin A3. In this embodiment, there are two guide tubes 102, which are symmetrically arranged on the left and right sides of the connecting tube B204 and are parallel to the connecting tube B204. The upper end of each guide tube 102 is fixedly connected to the hoisting plate 101, and the lower end of each guide tube 102 passes through the top of the outer support 2 and is connected to the connecting plate B401.

[0046] like Figures 1-3 As shown, in this embodiment, the top of the outer support 2 is provided with a reference plate 205 and a connecting plate A203 from top to bottom. Both the reference plate 205 and the connecting plate A203 are regular hexagons, and each has a through hole in its center. A connecting pipe B204 is fixedly connected to the through hole of the reference plate 205 and the connecting plate A203. The connecting pipe B204 is a hollow cylinder with open ends. The connecting frame 4 is located below the connecting plate A203. Six legs 201 are evenly fixed to the side walls of the reference plate 205 and the connecting plate A203 along the circumferential direction. The top of each leg 201 is fixed to the connection point of the adjacent side of the reference plate 205 and the connecting plate A203, and the bottom of each leg 201 is fixed to a circular base plate 202. When not in use, the connecting pipe A103 located in the middle of the hoisting frame 1 is inserted into the connecting pipe B204 and fixed to the connecting pipe B204 by the pin A3, thereby realizing the fixation of the hoisting frame 1 relative to the outer support 2.

[0047] like Figures 1-4 , Figure 6 and Figure 7 As shown, in this embodiment, the two ends of the connecting plate B401 are respectively fixed to the lower ends of the guide tubes 102 located on both sides of the connecting tube A103 in the hoisting frame 1. The connecting shaft 402 is a hollow shaft. The upper end of the connecting shaft 402 is fixed to the center of the connecting plate B401. The lower end of the connecting shaft 402 is provided with a strip hole A403 for connecting with the main welding frame 7 along the axial direction. An annular groove 404 is provided above the strip hole A403 for connecting with the pin C604 in the buckle sleeve 6.

[0048] like Figures 1-4 , Figure 8 and Figure 9As shown, the switch frame 5 in this embodiment includes a locking hook 501, an upper locking plate 502, a lower locking plate 503, a pin B504, and a locking sleeve 506. Both the upper locking plate 502 and the lower locking plate 503 are regular hexagonal structures. A locking sleeve 506 is fixedly connected to the center of each locking plate 502 and the lower locking plate 503. The locking sleeve 506 is fitted onto the main shaft 702 and fixedly connected to it. The connecting shaft 402 is inserted into the main shaft 702. Six sets of locking hook holes 505 are respectively opened along the circumferential direction on the upper locking plate 502 and the lower locking plate 503. Each set of locking hook holes 505 consists of two holes arranged radially, one inside and one outside. The locking hook holes 505 are located at the junction of adjacent sides. The locking hook 501 is inverted. The U-shaped opening has one side longer than the other. One side of the U-shaped opening passes through the two inner locking hook holes 505 in the upper locking plate 502 and the lower locking plate 503. The other side of the U-shaped opening passes through the two outer locking hook holes 505 in the upper locking plate 502 and the lower locking plate 503. One end of the U-shaped opening is provided with a pin B504 to prevent the locking hook 501 from disengaging from the upper locking plate 502 and the lower locking plate 503. The other side of the U-shaped opening holds one end of the upper cover assembly 11 in place before sampling. During the sampling and lifting process, the other side of the U-shaped opening is pushed up by the buckle sleeve 6, thereby releasing the upper cover assembly 11.

[0049] like Figures 1-4 , Figure 7 and Figure 10 As shown, the snap-fit ​​sleeve 6 in this embodiment includes a snap-fit ​​sleeve 601, a limiting sleeve 602, a pin cap 603, a pin C604, a spring A605, and a lifting eye nut 606. The snap-fit ​​sleeve 601 is annular and can be relatively movably fitted onto the main shaft 702. The main shaft 702 has a strip-shaped hole B706 along the axial direction, and the snap-fit ​​sleeve 601 has a threaded hole 607 communicating with the interior along the radial direction. One end of the limiting sleeve 602 is threadedly connected to the threaded hole 607, and the other end of the limiting sleeve 602 is threadedly connected to the pin cap 603. The pin C604 passes through the limiting sleeve 602 and the pin cap 603 and is inserted... The inner end of pin C604 is used for linkage with connecting shaft 402. That is, after the inner end of pin C604 passes through the strip hole B706 on the main shaft 702, it is inserted into the annular groove 404 on the connecting shaft 402, thereby realizing the linkage between the connecting shaft 402 and the snap-fit ​​sleeve 6. The outer end of pin C604 is located outside the pin cap 603 and is connected to the eye nut 606. The internal space enclosed by the limiting sleeve 602 and the pin cap 603 houses the spring A605. The spring A605 is sleeved on pin C604, and the two ends of the spring A605 abut against the shoulders on the pin cap 603 and pin C604, respectively. A boss 707 is provided on the main shaft 702 to limit the snap-fit ​​sleeve 6.

[0050] like Figures 1-4 and Figure 6As shown, in this embodiment, a pin D708 is inserted radially on the spindle 702. The pin D708 is inserted into the strip hole B706 at the lower end of the connecting shaft 402. When the connecting shaft 402 moves relative to the spindle 702, the pin D708 is always in the strip hole B706.

[0051] like Figures 1-4 and Figure 11 As shown, the buckle frame 8 in this embodiment includes a column 801 and a clamping plate B802. The column 801 has a hollow structure with a square hole inside, a round hole at the top, and a square hole at the bottom. The adjusting rod 10 passes through the column 801 and can move relative to it. The column 801 is provided with clamping plates B802 at both the top and bottom. The end of the upper clamping plate B802 is fixed to the upper end face of the column 801, and the end of the upper clamping plate B802 also has a round hole. The end of the lower clamping plate B802 is fixed to the lower side of the column 801. Each plate 701 is provided with clamping plates A703 at both the top and bottom. Both clamping plates A703 and B802 are semi-circular. The clamping plates A703 and B802 clamp the cylindrical sample tube 9 in the middle, and the clamping plates A703 and B802 are connected by a hinge bolt 705 to fix the sample tube 9.

[0052] The sample tube 9 in this embodiment is made of polycarbonate, with a diameter of 95 mm and a length increased to 110 cm, which significantly increases the sampling depth and is suitable for obtaining deep sediment samples.

[0053] like Figures 1-4 and Figure 12 As shown, the adjusting rod 10 in this embodiment includes a ball-head handle 1001, a spring B1002, a round rod A1003, a square rod A1004, a connecting plate C1005, a square rod B1006, and a round rod B1007. The upper and lower ends of the connecting plate C1005 are respectively hinged to the lower end of the square rod A1004 and the upper end of the square rod B1006. The lower end of the round rod A1003 is fixedly connected to the upper end of the square rod A1004. The upper end of the round rod A1003 is provided with a ball-head handle 1001. The upper end of the round rod B1007 is fixedly connected to the lower end of the square rod B1006. The lower end of the round rod B1007 is connected to the lower cover assembly 12. A spring B1002 is fitted on the round rod A1003. The square rod A1004 and the connecting plate C1005 are movably inserted into the buckle frame 8. The square rod A1004 corresponds to the square hole inside the column 801. The round rod A1003 passes through the round hole at the upper end of the column 801 and the end of the clamping plate B802 located at the upper end. The two ends of the spring B1002 abut against the ball head handle 1001 and the end of the clamping plate B802 located at the upper end, respectively.

[0054] like Figures 1-4 and Figure 13As shown, the upper cover assembly 11 of this embodiment includes an upper cover 1101, a hook 1102, a spring plate 1103, an upper connecting rod 1104, and a spring C1106. One end of the upper connecting rod 1104 is hinged to the upright plate 701, and the other end of the upper connecting rod 1104 is connected to the upper cover 1101. The portion between the two ends of the upper connecting rod 1104 is also connected to the upright plate 701 through the spring C1106. In this embodiment, the spring plate 1103 has two flat ends and a flat plate inclined to the plane in the middle. The flat end of one end of the spring plate 1103 is connected to the upper connecting rod 1104, and the flat end of the other end of the spring plate 1103 is provided with an opening 1105. The shorter side of the locking hook 501 is inserted into the opening 1105 before sampling. One end of the hook 1102 is fixed to the upper connecting rod 1104, and the other end of the hook 1102 is hook-shaped and used to hook the lower cover assembly 12 before sampling.

[0055] like Figures 1-4 and Figure 14 As shown, the lower cover assembly 12 in this embodiment includes a clamping block 1201, a lower cover 1202, a hexagonal head bolt 1203, and a nut 1204. One end of the clamping block 1201 is connected to the lower cover 1202, and the other end of the clamping block 1201 has an adjusting rod hole 1205 along the thickness direction. The lower end of the round rod B1007 in the adjusting rod 10 is inserted into the adjusting rod hole 1205. A slot is provided inward in the middle of the other end of the clamping block 1201. The gap extends to the adjusting rod hole 1205. The lower end of the round rod B1007 is inserted into the adjusting rod hole 1205 and then clamped and fixed by the hexagonal head bolt 1203 and the nut 1204. A pin E1008 is inserted into the lower end of the round rod B1007 to further prevent the round rod B1007 from detaching from the clamping block 1201. The hexagonal head bolt 1203 is also used to be hooked by the other end of the hook 1102 in the upper cover assembly 11 before sampling.

[0056] The working principle of this utility model is as follows:

[0057] Before launching, the lifting plate 101 in the lifting frame 1 is connected to the winch. The connecting pipe A103 in the lifting frame 1 is inserted into the connecting pipe B204 at the top of the outer support 2 and connected by the pin A3. The connecting plate B401 in the connecting frame 4 abuts against the bottom surface of the connecting plate A203 in the outer support 2. Both the upper cover assembly 11 and the lower cover assembly 12 are in the open state. That is, when the ball head handle 1001 is pressed down, the spring B1002 is compressed, and the square rod A1004 and the connecting plate C1005 move downward in the column 801 and protrude from the lower end of the column 801. The round rod B1007 is moved upward, so that the hexagonal head bolt 1203 in the lower cover assembly 12 is hooked by the other end of the hook 1102 in the upper cover assembly 11. Figure 3 As shown.

[0058] When it is necessary to launch the sampler, the pin A3 is pulled out, and the lifting frame 1, connecting frame 4, and main welding frame 7 can move relative to the outer support 2; however, since the lifting frame 1 is suspended by the winch, it has not yet moved relative to the outer support 2. When the sampler is launched and reaches the seabed, the bottom plate 202 of each leg 201 of the outer support 2 is supported on the seabed, and the lifting frame 1, connecting frame 4, and main welding frame 7 continue to descend under the action of gravity, and each sample tube 9 is inserted into the seabed; at this time, the connecting frame 4 drives the buckle sleeve 6 to continue to descend until the buckle sleeve 601 in the buckle sleeve 6 contacts the boss 707 on the main shaft 702, and the connecting frame 4 stops descending.

[0059] Then, it is lifted up. During the lifting process, the connecting frame 4 drives the buckle sleeve 6 to move upward relative to the main shaft 702. When the buckle sleeve 601 in the buckle sleeve 6 contacts the long side of each locking hook 501 on the switch frame 5, it pushes each locking hook 501 upward. The short side of each locking hook 501 moves out from the outer locking hook hole 505 and the opening 1105 on the other end plane of the spring plate 1103. The spring plate 1103 in each upper cover assembly 11 disengages from the locking hook 501. Under the action of the spring C1106 and its own weight, the upper cover 1101 covers and seals the upper end of the sample tube 9. The square rod B1006 and the round rod B1007 in the adjusting rod 10 flip downward around the hinge point at the lower end of the connecting plate C1005. The spring B1002 returns to its original position, pushes the ball head handle 1001 upward, and the connecting plate C1005 retracts into the column 801. The connecting shaft 402 in the connecting frame 4 is connected to the main shaft 702 via a pin D708. When the lower end of the strip hole A403 at the lower end of the connecting shaft 402 contacts the pin D708, it drives the main shaft 702 to rise together. The main shaft 702, through the supporting round tube 703 and each vertical plate 701, brings each sample tube 9 out from the seabed. The lower cover 1202 covers and seals the lower end of the sample tube 9. When the connecting frame 4 contacts the connecting plate A203 at the top of the outer base frame 2 again, they are lifted together until they are removed from the water surface, completing a one-time multi-point synchronous sampling. After inserting the pin A3, the sample tubes 9 can be removed one by one.

[0060] This invention can operate at depths up to 11,000 meters. The main body is made of corrosion-resistant, high-strength materials, such as 316L stainless steel, to withstand the high pressure and corrosive environment of the seabed. This invention can be designed with provisions for underwater camera and battery compartment locations.

[0061] This invention can be implemented using mechanical lowering or remote control to adapt to different application scenarios. The height of the outer support 2 is adjustable from 1.8 to 3 meters, and the area of ​​the base plate 202 can be from 0.6 to 1.2 square meters. 2 Adjustable.

Claims

1. A six-channel cylindrical gravity sampler, characterized in that: The assembly includes a hoisting frame (1), an outer support (2), a connecting frame (4), a switch frame (5), a snap-fit ​​sleeve (6), a main welding frame (7), and a sampling component. The upper end of the hoisting frame (1) is used to connect with a winch, and the lower end of the hoisting frame (1) can move relative to the top of the outer support (2). A connecting frame (4) is provided below the top of the outer support (2). The connecting frame (4) includes a connecting plate B (401) and a connecting shaft (402). The connecting plate B (401) is connected to the lower end of the hoisting frame (1), and the upper end of the connecting shaft (402) is fixed to the connecting plate B (401). The lower end of the connecting shaft (402) is used to connect with the main welding frame (7). The main welding frame (7) includes a vertical plate (701) and a main shaft. (702), support tube (703) and clamping plate A (704), the main shaft (702) is fixed to the top of the support tube (703), or the main shaft (702) and the support tube (703) are an integral structure, the main shaft (702) and the support tube (703) are both hollow internal structures, the lower end of the connecting shaft (402) is inserted into the main shaft (702) and the support tube (703), and can be connected to the main shaft (702) in a relatively vertical manner, the outer side of the support tube (703) is uniformly fixed with six vertical plates (701) along the circumferential direction, and each vertical plate (701) is fixed with a clamping plate A (704); the main shaft (702) is respectively fitted with a switch frame (5) and a buckle sleeve (6), The switch frame (5) is fixedly connected to the main shaft (702). The switch frame (5) has six lifting hooks (501) along the circumferential direction. The buckle sleeve (6) can move relative to the main shaft (702). The buckle sleeve (6) has a radially retractable pin C (604). The pin C (604) passes through the main shaft (702) and is linked with the connecting shaft (402). Each of the upright plates (701) is equipped with a sampling component. The sampling component includes a buckle frame (8), a sample tube (9), an adjusting rod (10), an upper cover assembly (11), and a lower cover assembly (12). The buckle frame (8) is provided with a clamping plate B (802). The sample tube (9) is connected to the clamping plate B (802) through the clamping plate A (704). 802) Clamping and fixing, the adjusting rod (10) passes through the buckle frame (8), the upper end of the adjusting rod (10) is the adjusting end, the lower end of the adjusting rod (10) is connected to the lower cover assembly (12), the upper cover assembly (11) is rotatably mounted on the upright plate (701), one end of the upper cover assembly (11) is locked by the corresponding locking hook (501) and disengages from the locking hook (501) after the locking hook (501) rises, the other end of the upper cover assembly (11) hooks the lower cover assembly (12) before sampling, the lower cover assembly (12) flips down by the action of the adjusting rod (10) when the upper cover assembly (11) disengages from the locking hook (501), and together with the upper cover assembly (11), seals the upper and lower ends of the sample tube (9).

2. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The hoisting frame (1) includes a hoisting plate (101), a guide tube (102), and a connecting tube A (103). The hoisting plate (101) is connected to the winch. The upper end of the connecting tube A (103) is fixed to the hoisting plate (101). The lower end of the connecting tube A (103) is connected to the connecting tube B (204) set on the top of the outer support (2) through a pin A (3). The upper end of the guide tube (102) is fixed to the hoisting plate (101). The lower end of the guide tube (102) passes through the top of the outer support (2) and is connected to the connecting frame (4).

3. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The top of the outer support (2) is provided with a reference plate (205) and a connecting plate A (203) from top to bottom. A connecting pipe B (204) is fixedly connected to the center of the reference plate (205) and the connecting plate A (203). The connecting frame (4) is located below the connecting plate A (203). Multiple legs (201) are evenly fixed to the side walls of the reference plate (205) and the connecting plate A (203) along the circumferential direction. A base plate (202) is fixedly connected to the bottom of each leg (201).

4. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The connecting shaft (402) is a hollow shaft. The lower end of the connecting shaft (402) is provided with a strip hole A (403) for connecting with the main welding frame (7) along the axial direction. An annular groove (404) is provided above the strip hole A (403) for connecting with the pin C (604) in the snap sleeve (6).

5. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The switch frame (5) includes a locking hook (501), an upper locking plate (502), a lower locking plate (503), a pin B (504), and a locking sleeve (506). The upper locking plate (502) and the lower locking plate (503) are fixedly connected to the middle of the locking sleeve (506). The connecting shaft (402) passes through the locking sleeve (506). Six sets of locking hook holes (505) are respectively opened in the circumferential direction on the upper locking plate (502) and the lower locking plate (503). Each set of locking hook holes (505) consists of two inner and two outer holes arranged radially. The locking hook (501) is in the shape of an inverted "U". The length of one side of the "U" opening is greater than the other side. One side of the "U" opening is controlled by the upper locking hook. The upper and lower locking holes (505) on the inner side of the upper locking plate (502) and the lower locking plate (503) pass through the other side of the "U"-shaped opening. The upper and lower locking holes (505) on the outer side of the upper locking plate (502) and the lower locking plate (503) pass through the other side of the "U"-shaped opening. One end of the "U"-shaped opening is provided with a pin B (504) to prevent the locking hook (501) from disengaging from the upper locking plate (502) and the lower locking plate (503). The other side of the "U"-shaped opening will hold one end of the upper cover assembly (11) before sampling. The other side of the "U"-shaped opening will be pushed up by the buckle sleeve (6) during the sampling and lifting process, thereby releasing the upper cover assembly (11).

6. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The snap-fit ​​sleeve (6) includes a snap-fit ​​sleeve (601), a limiting sleeve (602), a pin cap (603), a pin C (604), a spring A (605), and a lifting eye nut (606). The snap-fit ​​sleeve (601) is movably fitted onto the main shaft (702). The snap-fit ​​sleeve (601) has a radially threaded hole (607) communicating with the interior. One end of the limiting sleeve (602) is threadedly connected to the threaded hole (607), and the other end of the limiting sleeve (602) is threadedly connected to the pin cap (603). The pin C (604) is secured by the limiting sleeve (602). The pin C (604) and the pin cap (603) pass through it. The inner end of the pin C (604) is used to link with the connecting shaft (402). The outer end of the pin C (604) is connected to the eye nut (606). The inner space formed by the limiting sleeve (602) and the pin cap (603) accommodates the spring A (605). The spring A (605) is sleeved on the pin C (604). The two ends of the spring A (605) abut against the shoulders on the pin cap (603) and the pin C (604) respectively. The main shaft (702) is provided with a boss (707) for limiting the buckle sleeve (6).

7. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The buckle frame (8) includes a column (801) and a clamping plate B (802). The column (801) is a hollow structure. The adjusting rod (10) passes through the column (801) and can move relative to it. The upper and lower ends of the column (801) are provided with clamping plates B (802). The upper and lower ends of the outer side of each of the columns (701) are provided with clamping plates A (704). The clamping plates A (704) and B (802) are both semi-circular. The clamping plates A (704) and B (802) clamp the cylindrical sample tube (9) in the middle and connect the clamping plates A (704) and B (802) with a hinge bolt (705).

8. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The adjusting rod (10) includes a ball-head handle (1001), a spring B (1002), a round rod A (1003), a square rod A (1004), a connecting plate C (1005), a square rod B (1006), and a round rod B (1007). The upper and lower ends of the connecting plate C (1005) are respectively hinged to the lower end of the square rod A (1004) and the upper end of the square rod B (1006). The lower end of the round rod A (1003) is fixedly connected to the upper end of the square rod A (1004). The upper end is provided with a ball head handle (1001), the upper end of the round rod B (1007) is fixedly connected to the lower end of the square rod B (1006), and the lower end of the round rod B (1007) is connected to the lower cover assembly (12); a spring B (1002) is sleeved on the round rod A (1003), and the square rod A (1004) and the connecting plate C (1005) are relatively movable and pass through the buckle frame (8). The two ends of the spring B (1002) abut against the ball head handle (1001) and the buckle frame (8) respectively.

9. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The upper cover assembly (11) includes an upper cover (1101), a hook (1102), a spring plate (1103), an upper connecting rod (1104), and a spring C (1106). One end of the upper connecting rod (1104) is hinged to the upright plate (701), and the other end of the upper connecting rod (1104) is connected to the upper cover (1101). The portion between the two ends of the upper connecting rod (1104) is also connected to the upright plate (701) via the spring C (1106). 01) Connection; one end of the spring sheet (1103) is connected to the upper connecting rod (1104), and the other end of the spring sheet (1103) is provided with an opening (1105). The locking hook (501) is inserted into the opening (1105) before sampling; one end of the hook (1102) is fixedly connected to the upper connecting rod (1104), and the other end of the hook (1102) is hook-shaped and used to hook the lower cover assembly (12) before sampling.

10. The six-channel cylindrical gravity sampler according to claim 1, characterized in that: The lower cover assembly (12) includes a clamping block (1201), a lower cover (1202), a hexagonal head bolt (1203), and a nut (1204). One end of the clamping block (1201) is connected to the lower cover (1202). The other end of the clamping block (1201) has an adjustment rod hole (1205) along the thickness direction. The lower end of the adjustment rod (10) is inserted into the adjustment rod hole (1205). The other end of the clamping block (1201) has a gap extending inward to the middle and reaching the adjustment rod hole (1205). After the adjustment rod (10) is inserted into the adjustment rod hole (1205), it is clamped and fixed by the hexagonal head bolt (1203) and the nut (1204). The hexagonal head bolt (1203) is also used to be hooked by the other end of the upper cover assembly (11) before sampling.

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