A sampling device

Abstract

The application discloses a sampling device, which comprises a sampling box, a supporting piece and a swing piece. The supporting piece is movably connected to the sampling box; the swing piece is reversibly connected to the side of the supporting piece, and is used for being turned over to be unfolded when the sampling box moves downward relative to the supporting piece, and is used for abutting on the supporting surface, so that the side of the supporting piece and the sampling box is provided with side support, the standing stability of the sampling surface of the sampling box on the seabed sediment layer is enhanced, the sampling box on the sampling surface is prevented from being turned over or dumped, and therefore the sampling success rate can be improved. When the sampling box and the supporting piece fall together in seawater, the swing piece can be close to the side wall of the supporting piece to be folded, so that the water resistance of the sampling device can be reduced, and the sampling device is conveniently lowered. The application is used in the technical field of seabed sampling.

Description

Technical Field

[0001] This application relates to the field of seabed sampling technology, and in particular to a sampling device. Background Technology

[0002] In marine resource research, deep-sea sediments are typically obtained using sampling boxes. A vertical sampling box structure is proposed, with a closed top and an open bottom, housing a sampling mechanism. This mechanism includes a linkage assembly and two sampling hoppers, symmetrically arranged left and right within the sampling box. The linkage assembly is mounted on the sampling box and connects the two sampling hoppers. In its natural state, the two sampling hoppers are open, exposing the bottom opening of the sampling chamber. During sampling, the two sampling hoppers can be closed by pulling the linkage assembly.

[0003] The sampling method using a sampling box includes the following steps: the sampling box is lowered into the sea by a cable and sinks to the seabed under its own weight. The bottoms of the two sampling buckets are inserted into the seabed sediment layer. The two sampling buckets are closed by a lifting linkage assembly, which allows the sediment from the deep seabed to be collected into the two sampling buckets.

[0004] When using the aforementioned sampling container, several problems may arise that could lead to sampling failure. For example, as the sampling container sinks to the seabed under its own weight, on the one hand, the complex and unpredictable ocean currents may cause the container to tip over, resulting in sampling failure; on the other hand, the sampling surface of the seabed sediment layer is also complex and varied, possibly being uneven or non-level, making it difficult to place the sampling container upright on the sampling surface, thus causing sampling failure. Summary of the Invention

[0005] To solve at least one of the above-mentioned technical problems, this application provides a sampling device, and the technical solution adopted is as follows.

[0006] This application provides a sampling device, including: a sampling box; a support member, the support member being movably connected to the sampling box in a vertical manner; and a swing member, the swing member being rotatably connected to the side of the support member, the swing member being used to flip and unfold toward the support surface when the sampling box moves downward relative to the support member, and to abut against the support surface.

[0007] In some embodiments of this application, the sampling device further includes a driving mechanism connected to the sampling box and connected to the swing member, the driving mechanism being used to drive the swing member to flip.

[0008] In some embodiments of this application, the driving mechanism includes a cam groove, a sliding shaft, and a driven rocker. The cam groove is disposed on the support member and includes a convex groove section protruding towards the inside of the support member. One end of the driven rocker is slidably disposed in the cam groove via the sliding shaft, and the other end of the driven rocker is connected to the swing member. The driven rocker is used to rotate when sliding along the cam groove to the convex groove section, so as to drive the swing member to flip.

[0009] In some embodiments of this application, a through groove is provided on the side of the support member, and the swing member is movably disposed in the through groove so that when the swing member is flipped toward the side away from the support surface, it can be received inside the support member.

[0010] In some embodiments of this application, the sampling device further includes a first connector, the support member is movably connected to the sampling box via the first connector, multiple swing members are provided, the multiple swing members are spaced apart circumferentially along the first connector, and the swing members are rotatably connected to the first connector, and multiple through slots are provided, the number of swing members and through slots are the same and correspond one-to-one.

[0011] In some embodiments of this application, a guide rail extending vertically is provided on the inner sidewall of the through groove, and a groove is provided on the first connector, which is slidably connected to the guide rail through the groove.

[0012] In some embodiments of this application, the sampling box is provided with a second connector, and the sampling box is detachably connected to the first connector via the second connector.

[0013] In some embodiments of this application, one end of the swing member is rotatably connected to the support member, and the other end of the swing member is provided with an arc-shaped support leg.

[0014] In some embodiments of this application, the support leg includes a first support leg and a second support leg, which are spaced apart in a vertical direction.

[0015] In some embodiments of this application, the legs are made of an elastic material.

[0016] The embodiments of this application have at least the following beneficial effects: When the sampling box and the support member fall together in seawater in the embodiments of this application, the swing member can approach the side wall of the support member to retract, thereby reducing the water resistance of the sampling device and facilitating the lowering of the sampling device; the support member can contact the sampling surface of the seabed sediment layer before the sampling box, and then the sampling box moves downward relative to the support member. At this time, the swing member can be triggered to flip and unfold towards the sampling surface of the seabed sediment layer (i.e., the support surface) and abut against the sampling surface of the seabed sediment layer, thereby providing lateral support for the support member and the sampling box, enhancing the stability of the sampling box on the sampling surface, preventing the sampling box on the sampling surface from tipping over or falling, thereby improving the sampling success rate; when the sampling device is not needed, the swing member can also approach the side wall of the support member to retract, thereby reducing the footprint of the sampling device and facilitating storage. Attached Figure Description

[0017] The aspects and advantages described and / or added to the embodiments of this application will become apparent and readily understood in conjunction with the following drawings. It should be noted that the embodiments illustrated in the following drawings are exemplary and are used only to explain this application, and should not be construed as limiting this application.

[0018] Figure 1 This is a schematic diagram of the sampling box provided in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the sampling device provided in the embodiments of this application;

[0020] Figure 3 A schematic diagram of the structure in which the swinging member unfolds when the sampling box moves downward relative to the support member, as provided in the embodiment of this application.

[0021] Figure 4 A cross-sectional view of the sampling device provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the structure of the support member provided in the embodiments of this application;

[0023] Figure 6 This is a schematic diagram of the connection between the drive mechanism and the swinging component provided in an embodiment of this application;

[0024] Figure 7 Another structural schematic diagram of the support member provided in the embodiments of this application;

[0025] Figure 8 A schematic diagram illustrating the detachable connection between the first connector and the second connector provided in an embodiment of this application;

[0026] Figure 9 A schematic diagram of a swing member with a first leg and a second leg provided in an embodiment of this application;

[0027] Figure 10 Another schematic diagram of a swing member provided with a first foot and a second foot, as provided in an embodiment of this application.

[0028] Reference numerals: Sampling box 110, connecting rod assembly 111, sampling hopper 112, second connecting member 120, first vertical plate 121, first horizontal plate 122, embedding part 123; support member 210, through groove 211, inner side wall 2111, guide rail 21111, first connecting member 220, second vertical plate 221, second horizontal plate 222, connecting block 223, groove 2231, locking part 224, arc ring 2241, connecting part 2242, elastic member 2243, base 2244; swing member 310, connecting shaft 320, support leg 330, first support leg 331, second support leg 332; cam groove 410, first straight segment 411, convex segment 412, second straight segment 413, sliding shaft 420, driven swing member 430; support base 500. Detailed Implementation

[0029] The following is combined Figures 1 to 10 The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this embodiment, the positive Z-axis direction is considered as "up" and the negative Z-axis direction as "down".

[0033] See Figure 1 The sampling box 110 is closed at the top and open at the bottom, and a sampling mechanism is installed inside the sampling box 110. The sampling mechanism includes a connecting rod assembly 111 and two sampling hoppers 112, which are symmetrically arranged on the left and right sides inside the sampling box 110. The connecting rod assembly 111 is mounted on the sampling box 110 and connects the two sampling hoppers 112. In the natural state, the two sampling hoppers 112 are open, exposing the bottom opening of the sampling chamber. During sampling, the two sampling hoppers 112 can be closed by pulling the connecting rod assembly 111.

[0034] The method of sampling using the sampling box 110 includes the following steps: the sampling box 110 is lowered into the sea by a cable, and the sampling box 110 sinks to the seabed under its own weight. The bottoms of the two sampling buckets 112 are inserted into the seabed sediment layer. The two sampling buckets 112 are closed by the lifting linkage assembly 111, so that the sediments of the deep seabed can be included in the two sampling buckets 112.

[0035] When taking samples using the aforementioned sampling box 110, some problems may arise that lead to sampling failure. For example, when the sampling box 110 sinks to the seabed under its own weight, on the one hand, the complex and unpredictable ocean currents may cause the sampling box 110 to capsize, resulting in sampling failure; on the other hand, the sampling surface of the seabed sediment layer is also complex and varied, and may be uneven or non-level, making it difficult for the sampling box 110 to stand upright on the sampling surface, resulting in sampling failure.

[0036] Therefore, see Figure 2 and Figure 3 This application provides a sampling device that can provide lateral support for the support member 210 and the sampling box 110, enhance the stability of the sampling box 110 on the sampling surface of the seabed sediment layer, prevent the sampling box 110 from tipping over or falling over on the sampling surface, thereby improving the sampling success rate.

[0037] For example, the sampling device includes a sampling box 110, a support member 210 and a swing member 310. The support member 210 is movably connected to the sampling box 110. The swing member 310 is rotatably connected to the side of the support member 210. The swing member 310 is used to flip towards the support surface to unfold when the sampling box 110 moves downward relative to the support member 210, and is used to abut against the support surface.

[0038] Understandably, the support member 210 is movably connected to the sampling box 110, so that the sampling box 110 can also move up and down relative to the support member 210.

[0039] In this embodiment, when the sampling box 110 and the support member 210 fall together in seawater, the swing member 310 can retract by approaching the side wall of the support member 210, thereby reducing the water resistance of the sampling device and facilitating its lowering. The support member 210 can contact the sampling surface of the seabed sediment layer before the sampling box 110. Subsequently, the sampling box 110 moves downward relative to the support member 210. At this time, the swing member 310 can be triggered to flip and unfold towards the sampling surface (i.e., the support surface) of the seabed sediment layer and abut against it, thereby providing lateral support for the support member 210 and the sampling box 110, enhancing the stability of the sampling box 110 on the sampling surface, preventing the sampling box 110 from tipping over or falling, and thus improving the sampling success rate. When the sampling device is not needed, that is, when the sampling device is not in use, the swing member 310 can also retract by approaching the side wall of the support member 210, thereby reducing the space occupied by the sampling device and facilitating its storage.

[0040] Optionally, see Figure 2 and Figure 4 The support member 210 can be a support frame, which is hollow so that the sampling box 110 can be placed in the support frame without affecting the sampling of the sampling box 110 placed in the support frame.

[0041] Of course, the support member 210 can also be a support frame or other support structure, and no specific restrictions are made here. The following explanation will take "support member 210 as a support frame" as an example.

[0042] Optionally, in some embodiments, the sampling device further includes a driving mechanism connected to the sampling box 110 and connected to the swing member 310, the driving mechanism being used to drive the swing member 310 to flip.

[0043] Alternatively, in some embodiments, see Figure 5 and Figure 6The drive mechanism includes a cam groove 410, a sliding shaft 420, and a driven rocker 430. The cam groove 410 is disposed on the support member 210 and includes a convex groove section 412 protruding toward the inner side of the support member 210. One end of the driven rocker 430 is slidably disposed in the cam groove 410 via the sliding shaft 420, and the other end of the driven rocker 430 is connected to the swing member 310. The driven rocker 430 is used to rotate when sliding along the cam groove 410 to the convex groove section 412, so as to drive the swing member 310 to flip.

[0044] It should be noted that the inner side of support member 210 refers to... Figure 7 The direction opposite to the direction indicated by the arrow, the outer side of the support member 210 refers to... Figure 7 The direction indicated by the middle arrow.

[0045] Optionally, in other embodiments, the drive mechanism may include a sensor and an electric shaft. The sensor is used to determine whether the sampling box 110 has moved downward relative to the support member 210, and the electric shaft is electrically connected to the sensor. If the sensor senses that the sampling box 110 has moved downward relative to the support member 210, it sends a signal to the electric shaft. After receiving the signal from the sensor, the electric shaft starts to drive the swing member 310 to flip towards the support surface to unfold, thereby providing lateral support for the support member 210 and the sampling box 110.

[0046] Optionally, the sensor can be an infrared sensor, which can be mounted near the bottom of the support 210 to sense the falling sampling box 110. Understandably, the sensor and motor shaft can be waterproofed to prevent failure in seawater.

[0047] Of course, the driving mechanism can also be other driving mechanisms, which can drive the sampling box 110 to flip towards the support surface to unfold when the sampling box 110 moves downward relative to the support member 210. No specific restrictions are made here.

[0048] Optionally, the driven swing member 430 includes a first end and a second end spaced apart along the length direction perpendicular to the slide shaft 420. One end of the slide shaft 420 is slidably disposed in the cam groove 410, the other end of the slide shaft 420 is connected to the first end, and the second end is connected to the swing member 310.

[0049] Optionally, the swing member 310 is provided with a connecting shaft 320, and the swing member 310 is connected to the second end of the driven swing member 430 through the connecting shaft 320.

[0050] Alternatively, in some embodiments, see Figure 6 The cam groove 410 also includes a first straight segment 411 and a second straight segment 413, and the two ends of the convex groove segment 412 are respectively connected to the first straight segment 411 and the second straight segment 413.

[0051] For example, the first straight segment 411 is located above the second straight segment 413, and the first straight segment 411 and the second straight segment 413 are collinear. The convex segment 412 is an arc-shaped convex segment. The cam groove 410 with this structure can realize the 180° rotation of the swing member 310.

[0052] Of course, the cam groove 410 can also be of other shapes, and the flipping angle can also be of other values, as long as it can provide lateral support for the support member 210 and the sampling box 110 after the swing member 310 is flipped. No specific restrictions are imposed here.

[0053] Alternatively, in some embodiments, see Figure 2 The support member 210 has a through groove 211 on its side, and the swing member 310 is movably disposed in the through groove 211 so that when the swing member 310 is flipped to the side away from the support surface, it can be accommodated in the support member 210.

[0054] Alternatively, in some embodiments, see Figure 2 and 7 The sampling device also includes a first connector 220, a support 210 which is vertically connected to the sampling box 110 via the first connector 220, a plurality of swinging members 310 which are spaced apart along the circumference of the first connector 220 and are rotatably connected to the first connector 220, and a plurality of through slots 211 which are the same number of swinging members 310 and through slots 211 and correspond one-to-one.

[0055] In other words, the first connector 220 is movably mounted on the support 210, and when the sampling box 110 moves up and down relative to the support 210, it can synchronously drive the swinging member 310 to move up and down and flip.

[0056] For example, see Figure 3 When the swing member 310 is in its initial position (the upper end of the first straight segment 411), the swing member 310 faces upward and is inclined towards the inside of the support member 210, meaning the swing member 310 can be housed within the support member 210, further reducing the water resistance and space occupied by the sampling device. When the sampling box 110 moves downward relative to the support member 210, it can drive the swing member 310 to move downward along the cam groove 410. When the swing member 310 passes through the protrusion section 412 of the cam groove 410, the swing member 310 can rotate 180° towards the outside of the support member 210, thus making the swing member 310 face downward and inclined towards the outside of the support member 210, so that when the swing member 310 moves downward to the sampling surface, it can provide lateral support for the support member 210 and the sampling box 110.

[0057] For example, see Figure 2The support member 210 is a rectangular support frame. Each side of the support member 210 has three through slots 211, which are spaced horizontally and extend vertically. Each through slot 211 contains a swing element 310. In other words, the support member 210 has swing elements 310 on all four sides, which can prevent the support member 210 and the sampling box 110 inside the support member 210 from tipping over from all directions.

[0058] It is understandable that the specific number of through slots 211 and swing components 310 can be set according to actual needs, and no specific restrictions are imposed here.

[0059] Optionally, the through groove 211 has two opposing inner sidewalls 2111, which extend vertically. Optionally, a connecting shaft 320 is provided on both sides of the swing member 310, and each connecting shaft 320 is connected to a drive mechanism. Optionally, the cam groove 410 of the drive mechanism is located on the outer side of the inner sidewall 2111, one end of the sliding shaft 420 is slidably and rotatably connected to the cam groove 410, the other end of the sliding shaft 420 is connected to the first end of the driven swing member 430, and the second end of the driven swing member 430 is connected to the connecting shaft 320. Optionally, the connecting shaft 320 can also be rotatably connected to the first connecting member 220, so that the swing member 310 can be flipped and connected to the first connecting member 220.

[0060] Optionally, the first connector 220 includes a frame and a plurality of connecting blocks 223, the connecting blocks 223 being connected to the frame. Optionally, the number of connecting blocks 223 is equal to the number of connecting shafts 320 and corresponds one-to-one, the connecting shafts 320 being rotatably connected to the connecting blocks 223.

[0061] Alternatively, in some embodiments, see Figure 6 and Figure 8 The inner wall 2111 of the through groove 211 is provided with a guide rail 21111 extending in the vertical direction, and the first connector 220 is provided with a groove 2231. The first connector 220 is slidably connected to the guide rail 21111 through the groove 2231.

[0062] Optionally, the guide rails 21111 are disposed on the inner side of the inner wall 2111 relative to the cam groove 410, and the number of guide rails 21111 is equal to the number of connecting blocks 223 and corresponds one-to-one. See Figure 8 The groove 2231 is provided on the connecting block 223, and the connecting block 223 is slidably connected to the corresponding guide rail 21111 through the groove 2231.

[0063] Optionally, in some embodiments, the sampling box 110 is provided with a second connector 120, and the sampling box 110 is detachably connected to the first connector 220 through the second connector 120. By assembling and disassembling the sampling box 110, the support member 210 can be adapted to different sampling boxes 110, thereby achieving versatility.

[0064] Optionally, the sampling box 110 can be integrally formed with the second connector 120, or it can be detachably connected to the second connector 120; no specific limitations are imposed here.

[0065] Optionally, see Figure 7 and Figure 8 The second connector 120 and the first connector 220 are detachably connected via a locking structure. Exemplarily, the second connector 120 is provided with an insert portion 123, which may optionally be circular. The first connector 220 is provided with a locking portion 224, which includes an arc ring 2241 and a base 2244. The arc ring 2241 is disposed on the base 2244, and connecting portions 2242 are provided on both sides of the arc ring 2241. The connecting portions 2242 are connected to the base 2244 via elastic members 2243. Optionally, the elastic member 2243 may be a spring, rubber, or other elastic member; no specific limitations are imposed here.

[0066] Understandably, by compressing the elastic element 2243, the arc ring 2241 can be opened, allowing the insert 123 to be inserted into the arc ring 2241. Then, by releasing the elastic element 2243, the arc ring 2241 can be restored, thus locking the insert 123. By compressing the elastic element 2243 again, the arc ring 2241 can be opened, and the insert 123 can be removed.

[0067] In other words, when the insert 123 is pressed downward from the opening of the locking part 224, it can be inserted into the arc ring 2241. During the insertion process, the elastic element 2243 is squeezed. After being inserted into the lower position, the insert 123 is completely contained in the arc ring 2241. At this time, the squeezing force disappears, the elastic element 2243 returns to its original position, and drives the arc ring 2241 to restore its deformation to seal, thereby achieving locking.

[0068] Understandably, when the support member 210 has a relatively small weight, the insert 123 and the locking part 224 will not separate. However, when there is a large external force, such as pressing the support member 210 and simultaneously pulling the sampling box 110 upward with a relatively large force, the insert 123 and the locking part 224 can be separated, thereby separating the sampling box 110 from the support member 210.

[0069] For example, the sampling box 110 is rectangular and has four outer side walls, each of which is provided with a second connector 120.

[0070] Optionally, see Figure 7 and Figure 8 The second connector 120 includes a first vertical plate 121 and a first horizontal plate 122. The first horizontal plate 122 is connected to the lower end of the first vertical plate 121. The first vertical plate 121 is connected to the sampling box 110. The bottom of the first horizontal plate 122 is provided with a plurality of embedded parts 123.

[0071] Optionally, the frame of the first connector 220 includes four end-to-end borders, each corresponding to one of the four second connectors 120. Optionally, the border of the first connector 220 includes a second vertical plate 221 and a second horizontal plate 222. The second horizontal plate 222 is connected to the upper end of the second vertical plate 221, and a connecting block 223 is connected to the second vertical plate 221. The second horizontal plate 222 is provided with a plurality of locking parts 224, the same number as the number of embedding parts 123 on the first horizontal plate 122.

[0072] It is understood that the multiple locking parts 224 correspond one-to-one with the multiple insert parts 123. For example, each second connector 120 is provided with four insert parts 123 spaced apart, and each frame is provided with four locking parts 224 spaced apart. Of course, the number of locking parts 224 and insert parts 123 can also be one, two, three or other numbers, which will not be specified here, and can be set according to actual needs.

[0073] Optionally, in some embodiments, one end of the swing member 310 is rotatably connected to the support member 210, and the other end of the swing member 310 is provided with an arc-shaped support leg 330. The swing member 310 contacts the sampling surface through the support leg 330, thereby playing a role in uprighting and preventing the support member 210 and the sampling box 110 from tipping over or overturning. It is understood that the arc-shaped structure of the support leg 330 can effectively prevent the support leg 330 from embedding into the seabed sediment layer, which is beneficial for the recovery of the sampling device.

[0074] Optionally, in some embodiments, the support leg 330 is made of an elastic material. Optionally, the support leg 330 can be made of high-elasticity steel or other high-elasticity materials, without specific limitations. This allows the support leg 330 to have a certain degree of elasticity, so that when the sampling box 110 falls onto the sampling surface, the support leg 330 will not break or be damaged due to pressure, but will undergo a certain degree of elastic deformation, still forming a supporting contact with the sampling surface, thereby allowing the swing member 310 to still play a supporting and uprighting role.

[0075] Understandably, by adjusting the length of the swing member 310, the support leg 330 and the sampling box 110 can contact the sampling surface simultaneously, or the support leg 330 can contact the sampling surface before the sampling box 110. If the support leg 330 contacts the sampling surface before the sampling box 110, the swing member 310 can provide lateral support before the sampling box 110 contacts the sampling surface, thus preventing the sampling box 110 from tipping over during the descent.

[0076] It should be noted that if the support leg 330 contacts the sampling surface before the sampling box 110, since the sampling box 110 and the connecting shaft 320 move down synchronously, the support leg 330 can undergo elastic deformation to cooperate with the downward movement of the sampling box 110 and the connecting shaft 320 when the support leg 330 has contacted the sampling surface and the sampling box 110 continues to fall.

[0077] Alternatively, in some embodiments, see Figure 9 and Figure 10 The support includes a first support 331 and a second support 332, which are spaced apart in the vertical direction.

[0078] Optionally, both the first leg 331 and the second leg 332 are made of elastic material, with the first leg 331 located below the second leg 332. The first leg 331 and the second leg 332 can form supporting contact with the sampling surface in stages, providing a relay effect.

[0079] For example, the first leg 331 initially forms a supporting contact with the sampling surface. During operation, the first leg 331 will deform due to pressure. When the first leg 331 deforms to be flush with the second leg 332, the second leg 332 can form a supporting contact with the sampling surface, bear part of the pressure, and also reduce the pressure on the first leg 331, preventing the deformation of the first leg 331 from exceeding the tolerance range and causing failure.

[0080] Optionally, see Figure 4 The sampling device may also include a support base 500. It is understood that the sampling box 110 is detachably connected to the first connector 220 via the second connector 120. Before using the sampling device, the sampling box 110 needs to be installed on the support member 210. Since the first connector 220 is located at the upper end of the guide rail 21111 in its natural state, to facilitate the installation of the sampling box 110, the support base 500 can be placed within the support frame, and then the sampling box 110 can be lifted and placed on the support base 500 to connect the sampling box 110 to the support member 210.

[0081] It should be noted that before lowering the sampling device, the sampling box 110 can also be supported by the support base 500. When preparing the sampling device, the cable can be connected to the sampling box 110 and then lowered. This will make the sampling box 110 higher than the support member 210. When the support member 210 falls to the sampling surface before the sampling box 110, the cable can be lowered. The sampling box 110 can slide downward relative to the support member 210 under its own weight. At the same time, it can drive the swing member 310 to slide downward and rotate 180°, providing lateral support for the support member 210 and the sampling box 110.

[0082] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

[0084] In the description of this application, the presence of a comma ("、") in the patent title indicates an "and" relationship, not an "or" relationship. For example, if the patent title is "A type A, B type", it means that the content claimed in this application is: a technical solution with the subject matter title A and a technical solution with the subject matter title B.

Claims

1. A sampling device, characterized in that, include: Sampling box; A support member, which is movably connected to the sampling box; A swinging member, which is rotatably connected to the side of the support member, is used to flip and unfold toward the support surface when the sampling box moves downward relative to the support member, and is used to abut against the support surface. The sampling device further includes a driving mechanism, which is connected to the sampling box and to the swinging member. The driving mechanism is used to drive the swinging member to rotate. The driving mechanism includes a cam groove, a sliding shaft, and a driven rocker. The cam groove is disposed on the support member and includes a convex groove section protruding towards the inside of the support member. One end of the driven rocker is slidably disposed in the cam groove via the sliding shaft, and the other end of the driven rocker is connected to the swing member. The driven rocker is used to rotate when sliding along the cam groove to the convex groove section, so as to drive the swing member to flip. The cam groove also includes a first straight segment and a second straight segment. The two ends of the convex groove section are respectively connected to the first straight segment and the second straight segment. The first straight segment is located above the second straight segment, and the first straight segment and the second straight segment are collinear. The convex groove section is arc-shaped.

2. The sampling device according to claim 1, characterized in that: The support member has a through groove on its side, and the swing member is movably disposed in the through groove so that when the swing member is flipped to the side away from the support surface, it can be received inside the support member.

3. The sampling device according to claim 2, characterized in that: The sampling device further includes a first connector, the support member is connected to the sampling box through the first connector and can move up and down, the swing member is configured as a plurality of them, the plurality of swing members are arranged at intervals along the circumference of the first connector, and the swing members are rotatably connected to the first connector, the through slot is configured as a plurality of them, the number of swing members and the through slots are the same and correspond one-to-one.

4. The sampling device according to claim 3, characterized in that: The inner wall of the through groove is provided with a guide rail extending in a vertical direction, and the first connector is provided with a groove, through which the first connector is slidably connected to the guide rail.

5. The sampling device according to claim 3, characterized in that: The sampling box is provided with a second connector, and the sampling box is detachably connected to the first connector through the second connector.

6. The sampling device according to claim 1, characterized in that: One end of the swing member is rotatably connected to the support member, and the other end of the swing member is provided with an arc-shaped support leg.

7. The sampling device according to claim 6, characterized in that: The support includes a first support and a second support, which are spaced apart in the vertical direction.

8. The sampling device according to claim 7, characterized in that: The legs are made of elastic material.

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