Sampling device

Abstract

The invention discloses a sampling device. The sampling device comprises a sampling box, a supporting part and a swinging part, the supporting piece is connected to the sampling box in an up-down moving manner; the swinging part is connected to the side surface of the supporting part in a turnover manner, and the swinging part is used for turning over towards the supporting surface to be unfolded when the sampling box moves downwards relative to the supporting part, and is used for abutting against the supporting surface, so that side surface support is provided for the supporting part and the sampling box, and the standing stability of the sampling box on the sampling surface of the seabed settled layer is enhanced; the sampling box on the sampling surface is prevented from rolling over or toppling over, so that the sampling success rate can be improved. When the sampling box and the supporting piece together fall down in seawater, the swinging 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 can be lowered. The invention is applied to the technical field of seabed sampling.

Description

Technical Field

[0001] The present application relates to the technical field of seabed sampling, and in particular to a sampling device. Background Art

[0002] When conducting research on marine resources, sediments from the deep seabed are usually obtained through a sampling box for research. In the related art, a vertical sampling box is proposed, which has a closed top and an open bottom, and a sampling mechanism is arranged in the sampling box. The sampling mechanism includes a connecting rod assembly and two sampling buckets, which are symmetrically arranged in the sampling box. The connecting rod assembly is arranged on the sampling box and connects the two sampling buckets. In the natural state, the two sampling buckets are open and leak out of the bottom opening of the sampling chamber. When sampling, the two sampling buckets can be closed by pulling the connecting rod assembly.

[0003] The method for sampling through a sampling box includes the following steps: the sampling box is thrown into the sea through a cable, the sampling box sinks to the seabed under the action of its own weight, the bottoms of two sampling buckets are inserted into the seabed sediment layer, and the two sampling buckets are driven to close by pulling the connecting rod assembly, so that the sediments on the deep seabed can be put into the two sampling buckets.

[0004] When sampling through the above sampling box, some problems may occur, resulting in sampling failure. For example, when the sampling box sinks to the seabed under its own weight, on the one hand, the complex and unpredictable ocean currents may cause the sampling box to roll over, resulting in sampling failure; on the other hand, the sampling surface of the seabed sediment layer is also complex and changeable, which may be uneven or non-horizontal, making it difficult for the sampling box to stand on the sampling surface, resulting in sampling failure. Summary of the invention

[0005] In order to solve at least one of the above technical problems, the present application provides a sampling device, and the technical solution adopted is as follows.

[0006] The present application provides a sampling device, comprising: a sampling box; a support member, which is connected to the sampling box so as to be movable up and down; a swing member, which is flippably connected to the side of the support member, and the swing member is used to flip toward the support surface to unfold when the sampling box moves downward relative to the support member, and is used to abut against the support surface.

[0007] In certain embodiments of the present application, the sampling device further comprises a driving mechanism, wherein the driving mechanism is connected to the sampling box and the driving mechanism is connected to the swinging member, and the driving mechanism is used to drive the swinging member to flip.

[0008] In certain embodiments of the present application, the driving mechanism includes a cam groove, a sliding shaft and a driven rocking member, the cam groove is arranged on the support member, the cam groove includes a convex groove section protruding toward the inner side of the support member, one end of the driven rocking member is slidably arranged in the cam groove through the sliding shaft, and the other end of the driven rocking member is connected to the swinging member, and the driven rocking member is used to rotate when sliding along the cam groove to the convex groove section to drive the swinging member to flip.

[0009] In certain embodiments of the present application, a through groove is formed on a side surface of the support member, and the swing member is movably disposed in the through groove so that the swing member can be accommodated in the support member when flipped toward a side away from the support surface.

[0010] In certain embodiments of the present application, the sampling device also includes a first connecting member, the supporting member is connected to the sampling box via the first connecting member so as to be movably connected up and down, the swinging member is provided in plurality, the plurality of swinging members are arranged at circumferential intervals along the first connecting member, and the swinging member is flippably connected to the first connecting member, the through groove is provided in plurality, and the number of the swinging members and the through groove is the same and corresponds one to one.

[0011] In certain embodiments of the present application, a guide rail extending in a vertical direction is provided on the inner side wall of the through slot, a groove is provided on the first connecting member, and the first connecting member is slidably connected to the guide rail through the groove.

[0012] In certain embodiments of the present application, a second connecting piece is provided on the sampling box, and the sampling box is detachably connected to the first connecting piece via the second connecting piece.

[0013] In certain embodiments of the present application, one end of the swing member is flipably connected to the support member, and the other end of the swing member is provided with a support foot in an arc-shaped structure.

[0014] In some embodiments of the present application, the supporting leg includes a first supporting leg and a second supporting leg, and the first supporting leg and the second supporting leg are arranged at intervals in the vertical direction.

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

[0016] The embodiments of the present application have at least the following beneficial effects: when the sampling box and the support member in the embodiments of the present application fall together in the seawater, the swing member can be retracted by approaching the side wall of the support member, 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 which time the swing member can be triggered to flip toward the sampling surface of the seabed sediment layer (i.e., the supporting surface) to unfold 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 standing stability of the sampling box on the sampling surface, and preventing the sampling box on the sampling surface from tipping over or falling over, thereby improving the sampling success rate; when the sampling device is not needed, the swing member can also be retracted by approaching the side wall of the support member, thereby reducing the space occupied by the sampling device and facilitating storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The aspects and advantages described and / or attached in the embodiments of the present application will become apparent and easy to understand in conjunction with the following drawings. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0018] Figure 1 A schematic diagram of the structure of the sampling box provided in the embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of a sampling device provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of the swing member unfolding when the sampling box provided in the embodiment of the present application moves downward relative to the support member;

[0021] Figure 4 A cross-sectional view of a sampling device provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the structure of the support member provided in the embodiment of the present application;

[0023] Figure 6 A schematic diagram of the structure of the connection between the driving mechanism and the swing member provided in the embodiment of the present application;

[0024] Figure 7 Another structural schematic diagram of a support member provided in an embodiment of the present application;

[0025] Figure 8 A schematic diagram of a structure in which a first connecting member and a second connecting member are detachably connected to each other in an embodiment of the present application;

[0026] Fig. 9 A schematic structural diagram of a swing member provided with a first support leg and a second support leg provided in an embodiment of the present application;

[0027] Fig.10 Another structural schematic diagram of a swinging member provided with a first leg and a second leg provided in an embodiment of the present application.

[0028] Figure markings: sampling box 110, connecting rod assembly 111, sampling bucket 112, second connecting member 120, first vertical plate 121, first horizontal plate 122, embedded portion 123; supporting member 210, through groove 211, inner wall 2111, guide rail 21111, first connecting member 220, second vertical plate 221, second horizontal plate 222, connecting block 223, groove 2231, locking portion 224, arc ring 2241, connecting portion 2242, elastic member 2243, base 2244; swinging member 310, connecting shaft 320, supporting leg 330, first supporting leg 331, second supporting leg 332; cam groove 410, first straight segment 411, convex groove segment 412, second straight segment 413, sliding shaft 420, driven swinging member 430; supporting base 500. DETAILED DESCRIPTION

[0029] Combine the following Figures 1 to 10 Embodiments of the present application are described in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present 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 the present application. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the embodiment of the present application, the positive direction of the Z axis is taken as the top, and the negative direction of the Z axis is taken as the bottom.

[0033] See also Figure 1 The sampling box 110 is closed at the top and open at the bottom, and a sampling mechanism is provided in the sampling box 110. The sampling mechanism includes a connecting rod assembly 111 and two sampling buckets 112. The two sampling buckets 112 are symmetrically arranged in the sampling box 110. The connecting rod assembly 111 is arranged on the sampling box 110 and connects the two sampling buckets 112. In a natural state, the two sampling buckets 112 are open and leak out of the bottom opening of the sampling chamber. When sampling, the two sampling buckets 112 can be closed by lifting the connecting rod assembly 111.

[0034] The method for sampling through the sampling box 110 includes the following steps: the sampling box 110 is thrown into the sea through a cable, the sampling box 110 sinks to the seabed under the action of its own weight, the bottoms of the two sampling buckets 112 are inserted into the seabed sediment layer, and the two sampling buckets 112 are driven to close by pulling the connecting rod assembly 111, so that the sediments on the deep seabed can be put into the two sampling buckets 112.

[0035] When sampling through the sampling box 110, some problems may occur, resulting in 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 roll over, resulting in sampling failure; on the other hand, the sampling surface of the seabed sediment layer is also complex and changeable, which may be a non-flat or non-horizontal surface, making it difficult for the sampling box 110 to stand on the sampling surface, resulting in sampling failure.

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

[0037] Exemplarily, the sampling device includes a sampling box 110, a support member 210 and a swing member 310. The support member 210 is connected to the sampling box 110 so as to be movable up and down; the swing member 310 is connected to the side of the support member 210 so as to be flippable. The swing member 310 is used to flip toward the supporting surface to unfold when the sampling box 110 moves downward relative to the support member 210, and is used to abut against the supporting surface.

[0038] It can be understood that the support member 210 is connected to the sampling box 110 so as to be movable up and down, so that the sampling box 110 can also move up and down relative to the support member 210 .

[0039] When the sampling box 110 and the support member 210 in the embodiment of the present application fall together in the seawater, the swing member 310 can be close to the side wall of the support member 210 to be retracted, thereby reducing the water resistance of the sampling device and facilitating the lowering of the sampling device; the support member 210 can contact the sampling surface of the seabed sediment layer before the sampling box 110, and then the sampling box 110 moves downward relative to the support member 210, at which time the swing member 310 can be triggered to flip toward the sampling surface of the seabed sediment layer (i.e., the supporting surface) to unfold and abut against the sampling surface of the seabed sediment layer, thereby providing side support for the support member 210 and the sampling box 110, enhancing the standing stability of the sampling box 110 on the sampling surface, and preventing the sampling box 110 on the sampling surface from tipping over or falling over, thereby 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 be close to the side wall of the support member 210 to be retracted, thereby reducing the space occupied by the sampling device and facilitating storage.

[0040] Alternatively, see Figure 2 and Figure 4 The support member 210 may be a support frame, and the support frame 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 may also be other support structures such as a support frame, which is not specifically limited here. The following description is made by taking "the support member 210 being a support frame" as an example.

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

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

[0044] It should be noted that the inner side of the 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 is Figure 7 The direction indicated by the arrow.

[0045] Optionally, in other embodiments, the driving mechanism may include a sensor and an electric shaft, wherein the sensor is used to determine whether the sampling box 110 moves 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 moves downward relative to the support member 210, a signal is sent to the electric shaft, and the electric shaft is started after receiving the signal from the sensor to drive the swing member 310 to flip toward the support surface to unfold, thereby providing side support for the support member 210 and the sampling box 110.

[0046] Optionally, the sensor may be an infrared sensor, which may be installed near the bottom of the support 210 to sense the falling sampling box 110. It is understood that the sensor and the electric shaft may be waterproofed to prevent failure in seawater.

[0047] Of course, the driving mechanism may also be other driving mechanisms that can drive the sampling box 110 to flip toward the support surface to unfold when the sampling box 110 moves downward relative to the support member 210, and no specific limitation is made here.

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

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

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

[0051] Exemplarily, the first straight line segment 411 is located above the second straight line segment 413 , and the first straight line segment 411 and the second straight line segment 413 are colinear, and the convex groove segment 412 is an arc-shaped convex groove segment. The cam groove 410 of this structure can realize a 180° flip of the swing member 310 .

[0052] Of course, the cam groove 410 may also be other shapes, and the flip angle may also be other values, so that the swing member 310 can provide side support for the support member 210 and the sampling box 110 after flipping, and no specific limitation is made here.

[0053] Optionally, in some embodiments, see Figure 2 A through slot 211 is formed on the side of the support member 210 , and the swing member 310 is movably disposed in the through slot 211 , so that the swing member 310 can be accommodated in the support member 210 when it is flipped toward a side away from the support surface.

[0054] Optionally, in some embodiments, see Figure 2 and 7 The sampling device also includes a first connecting member 220, and the supporting member 210 is connected to the sampling box 110 through the first connecting member 220 so as to be movably connected up and down. A plurality of swinging members 310 are provided, and the plurality of swinging members 310 are arranged at intervals along the circumference of the first connecting member 220, and the swinging members 310 are connected to the first connecting member 220 in a flippable manner. A plurality of through grooves 211 are provided, and the number of the swinging members 310 and the through grooves 211 are the same and correspond one to one.

[0055] That is to say, the first connecting member 220 is installed on the supporting member 210 so as to be movable up and down. When the sampling box 110 moves up and down relative to the supporting member 210, it can simultaneously drive the swinging member 310 to move up and down and turn over.

[0056] For example, see Figure 3 When the swing member 310 is at the initial position (the upper end of the first straight segment 411), the swing member 310 faces upward and is tilted toward the inner side of the support member 210, that is, the swing member 310 can be accommodated in the support member 210, which can further reduce the water resistance and occupied space of 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 convex groove section 412 of the cam groove 410, the swing member 310 can flip 180° toward the outside of the support member 210, so that the swing member 310 faces downward and is tilted toward the outer side of the support member 210, so that when the swing member 310 moves downward to the sampling surface, it can provide side 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, and three through slots 211 are provided on each side of the support member 210. The three through slots 211 on each side are arranged at intervals in the horizontal direction, and each through slot 211 extends in the vertical direction, and a swing member 310 is provided in each through slot 211. In other words, the swing members 310 are provided on the four sides of the support member 210, and the support member 210 and the sampling box 110 in the support member 210 can be fully prevented from tipping over.

[0058] It is understandable that the specific number of the through slots 211 and the swinging member 310 can be set according to actual needs and is not specifically limited here.

[0059] Optionally, the through slot 211 has two inner side walls 2111 arranged opposite to each other, and the inner side walls 2111 extend in the vertical direction. Optionally, a connecting shaft 320 is arranged on both sides of the swing member 310, and the connecting shafts 320 on both sides are connected to a driving mechanism. Optionally, the cam groove 410 of the driving mechanism is arranged on the outer side of the inner side wall 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 is also 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 connecting member 220 includes a frame and a plurality of connecting blocks 223 , and the connecting blocks 223 are connected to the frame. Optionally, the number of the connecting blocks 223 is equal to and corresponds to the number of the connecting shafts 320 , and the connecting shafts 320 are rotatably connected to the connecting blocks 223 .

[0061] Optionally, in some embodiments, see Figure 6 and Figure 8 A guide rail 21111 extending in a vertical direction is provided on the inner side wall 2111 of the through groove 211 , and a groove 2231 is provided on the first connecting member 220 , and the first connecting member 220 is slidably connected to the guide rail 21111 through the groove 2231 .

[0062] Optionally, the guide rails 21111 are arranged on the inner side of the inner side wall 2111 relative to the cam groove 410, and the number of the guide rails 21111 is equal to the number of the connecting blocks 223 and corresponds one to one. 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 connecting member 120, and the sampling box 110 is detachably connected to the first connecting member 220 via the second connecting member 120. By 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 may be integrally formed with the second connecting member 120 , or may be detachably connected to the second connecting member 120 , and no specific limitation is made herein.

[0065] Alternatively, see Figure 7 and Figure 8 , the second connecting member 120 and the first connecting member 220 are detachably connected through a locking structure. Exemplarily, an embedding portion 123 is provided on the second connecting member 120, and optionally, the embedding portion 123 is circular. A locking portion 224 is provided on the first connecting member 220, and the locking portion 224 includes an arc ring 2241 and a base 2244, the arc ring 2241 is provided on the base 2244, and connecting portions 2242 are provided on both sides of the arc ring 2241, and the connecting portion 2242 is connected to the base 2244 through an elastic member 2243. Optionally, the elastic member 2243 can be a spring, rubber or other elastic member, and is not specifically limited here.

[0066] It can be understood that the arc ring 2241 can be opened by compressing the elastic member 2243, so that the embedded part 123 can be embedded in the arc ring 2241, and then the elastic member 2243 is loosened to allow the arc ring 2241 to recover, thereby locking the embedded part 123; the arc ring 2241 can be opened again by compressing the elastic member 2243, and the embedded part 123 can be removed.

[0067] In other words, the embedded portion 123 can be inserted into the arc ring 2241 by pressing downward from the opening of the locking portion 224. The elastic member 2243 is squeezed during the insertion process. After being inserted downward into place, the embedded portion 123 is completely accommodated in the arc ring 2241. At this time, the squeezing force disappears, the elastic member 2243 is reset, and drives the arc ring 2241 to restore its deformation to seal and achieve locking.

[0068] It is understandable that when the weight of the support member 210 is relatively small, the embedded portion 123 and the locking portion 224 will not be disengaged. However, when the external force is relatively large, such as pressing the support member 210 and pulling the sampling box 110 upward with a relatively large force, the embedded portion 123 and the locking portion 224 can be separated, thereby separating the sampling box 110 from the support member 210.

[0069] Exemplarily, the sampling box 110 is in a rectangular parallelepiped shape and has four outer side walls, each of which is provided with a second connecting member 120 .

[0070] Alternatively, see Figure 7 and Figure 8 The second connecting member 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 . A plurality of embedded portions 123 are provided at the bottom of the first horizontal plate 122 .

[0071] Optionally, the frame of the first connecting member 220 includes four frames connected end to end, and the four frames correspond to the four second connecting members 120. Optionally, the frame of the first connecting member 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, the connecting block 223 is connected to the second vertical plate 221, and the second horizontal plate 222 is provided with a plurality of locking portions 224 equal to the number of the embedded portions 123 on the first horizontal plate 122.

[0072] It is understandable that the multiple locking portions 224 correspond to the multiple embedding portions 123. For example, four embedding portions 123 are arranged at intervals on each second connecting member 120, and four locking portions 224 are arranged at intervals on each frame. Of course, the number of locking portions 224 and embedding portions 123 can also be one, two, three or other numbers, which are not specifically described here and can be set according to actual needs.

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

[0074] Optionally, in some embodiments, the support leg 330 is made of elastic material. Optionally, the support leg 330 can be made of high elastic steel or other high elastic materials, which are not specifically limited here. In this way, the support leg 330 itself can have a certain elasticity. When the sampling box 110 falls to the sampling surface, the support leg 330 will not be broken or damaged due to pressure, but will produce a certain elastic deformation, and can still form a supporting contact with the sampling surface, so that the swing member 310 can still play a supporting and straightening role.

[0075] It is understandable that by adjusting the length of the swing member 310, the support leg 330 and the sampling box 110 can be in contact with the sampling surface at the same time, or the support leg 330 can be in contact with the sampling surface before the sampling box 110. If the support leg 330 is in contact with the sampling surface before the sampling box 110, the swing member 310 can form a side support before the sampling box 110 is in contact with the sampling surface, which can prevent the sampling box 110 from tipping over during the falling process.

[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 downward synchronously, when the support leg 330 has contacted the sampling surface and the sampling box 110 continues to fall, the support leg 330 can undergo elastic deformation to cooperate with the downward movement of the sampling box 110 and the connecting shaft 320.

[0077] Optionally, in some embodiments, see Fig. 9 and Fig.10 The supporting legs include a first supporting leg 331 and a second supporting leg 332 , and the first supporting leg 331 and the second supporting leg 332 are spaced apart in the vertical direction.

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

[0079] Illustratively, the first leg 331 initially forms a supporting contact with the sampling surface. During operation, the first leg 331 may be deformed due to pressure. When the first leg 331 is deformed to be flush with the second leg 332, the second leg 332 may form a supporting contact with the sampling surface, bear part of the pressure, and reduce the pressure on the first leg 331, thereby preventing the deformation of the first leg 331 from exceeding an acceptable range and causing failure.

[0080] Alternatively, see Figure 4 , the sampling device may further include a support base 500. It is understandable that the sampling box 110 is detachably connected to the first connecting member 220 through the second connecting member 120, and the sampling box 110 needs to be installed on the support member 210 before using the sampling device. Since the first connecting member 220 is located at the upper end of the guide rail 21111 in a natural state, in order to facilitate the installation of the sampling box 110, the support base 500 can be placed in the support frame, and then the sampling box 110 is lifted and placed on the support base 500, so as to connect the sampling box 110 to the support member 210.

[0081] It should be noted that before lowering the sampling device, the support base 500 can also be used to support the sampling box 110. When preparing the sampling device below, the cable can be connected to the sampling box 110 and then lowered. In this way, the sampling box 110 can be located at a high position relative to the support 210. When the support 210 falls to the sampling surface before the sampling box 110, the cable can continue to be lowered. The sampling box 110 can slide downward relative to the support 210 under the action of its own gravity, and at the same time, it can drive the swing member 310 to slide downward and flip 180°, providing side support for the support 210 and the sampling box 110.

[0082] In the description of this specification, if the reference terms "one embodiment", "some examples", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] The above describes the implementation methods of the present application in detail in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

[0084] In the description of this application, if "," appears in the patent name, it means an "and" relationship, not an "or" relationship. For example, if the patent name is "a kind of A, a kind of B", it means that the content protected by this application is: the technical solution with the subject name A and the technical solution with the subject name B.

Claims

1. A sampling device, characterized in that: include: Sampling box; A support member, the support member is connected to the sampling box so as to be movable up and down; A swinging member is connected to the side of the supporting member in a flippable manner, and is used to flip toward the supporting surface to unfold when the sampling box moves downward relative to the supporting member, and is used to abut against the supporting surface.

2. The sampling device according to claim 1, characterized in that: The sampling device further comprises a driving mechanism, wherein the driving mechanism is connected to the sampling box and is connected to the swinging member, and the driving mechanism is used to drive the swinging member to flip.

3. The sampling device according to claim 2, characterized in that: The driving mechanism includes a cam groove, a sliding shaft and a driven rocking member. The cam groove is arranged on the support member, and the cam groove includes a convex groove section protruding toward the inner side of the support member. One end of the driven rocking member is slidably arranged in the cam groove through the sliding shaft, and the other end of the driven rocking member is connected to the swinging member. The driven rocking member is used to rotate when sliding along the cam groove to the convex groove section to drive the swinging member to flip.

4. The sampling device according to claim 1, characterized in that: A through slot is formed on the side of the support member, and the swing member is movably arranged in the through slot, so that the swing member can be accommodated in the support member when it is turned over toward a side away from the support surface.

5. The sampling device according to claim 4, characterized in that: The sampling device also includes a first connecting member, through which the supporting member is movably connected to the sampling box up and down, a plurality of the swinging members are provided, the plurality of the swinging members are arranged at intervals along the circumference of the first connecting member, and the swinging member is flippably connected to the first connecting member, a plurality of the through slots are provided, and the number of the swinging members and the through slots is the same and corresponds one to one.

6. The sampling device according to claim 5, characterized in that: A guide rail extending in a vertical direction is arranged on the inner side wall of the through slot, and a groove is arranged on the first connecting member, through which the first connecting member is slidably connected to the guide rail.

7. The sampling device according to claim 5, characterized in that: The sampling box is provided with a second connecting piece, and the sampling box is detachably connected to the first connecting piece via the second connecting piece.

8. The sampling device according to claim 1, characterized in that: One end of the swinging member is connected to the supporting member in a flippable manner, and the other end of the swinging member is provided with a supporting foot in an arc-shaped structure.

9. The sampling device according to claim 8, characterized in that: The supporting legs include a first supporting leg and a second supporting leg, and the first supporting leg and the second supporting leg are arranged at intervals in a vertical direction.

10. The sampling device according to claim 9, characterized in that: The supporting feet are made of elastic material.

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