Suspended load sediment sampling device

Abstract

A suspended load sediment sampling device comprises a remote control boat, a vertical rotating shaft is rotatably arranged at the tail of the remote control boat, a flow guide plate is fixedly connected through the rotating shaft, a sampling barrel is slidably arranged on the flow guide plate in the length direction, an opening is formed in the side, close to the flow guide plate, of the sampling barrel, and a steel wire filter screen is fixedly arranged on the side, close to the flow guide plate, of the sampling barrel. According to the suspended sediment sampling device disclosed by the utility model, the position is changed through the movement of the remote control boat, and the automatic angle adjustment of the flow guide plate is matched, so that the plurality of sampling barrels on the flow guide plate obtain representative suspended sediment samples at different depth positions; and the accuracy and the efficiency of the sampling process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sediment sampling, in particular to a suspended sediment sampling device. Background Art

[0002] For relatively small sediment particles, when the hydrodynamic effect increases and the water turbulence is strong, these sediment particles may be carried by the water flow and suspended in the water for a long time without contacting the riverbed or the bottom of the water. This part of sediment is called suspended matter. The formation and movement of suspended matter are affected by many factors, such as water flow velocity, particle size, water depth, riverbed sediment, etc. The movement law of suspended matter is of great significance to river dynamics, sediment transport, water quality maintenance, etc., and is also an important link in the material circulation and energy flow in the river ecosystem. Therefore, studying the movement law and influencing factors of suspended matter is of great significance to river environmental protection and water resources management.

[0003] At present, the collection of suspended sediment particle samples mainly relies on manual operation, which makes the sampling location and depth the key factors affecting the sampling particle size. In addition, the existing sampling devices are often restricted by geographical location and cannot achieve multi-point sampling, which increases the difficulty and uncertainty of sampling. In response to these problems, we proposed an innovative suspended sediment sampling device, which aims to overcome the limitations of existing technologies and achieve more accurate and convenient sampling operations. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a suspended sediment sampling device to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a suspended sediment sampling device, including a remote-controlled boat, a rear portion of the remote-controlled boat is rotatably provided with a vertically arranged rotating shaft, a guide plate is fixedly connected to the rotating shaft, the guide plate is provided with a sampling barrel sliding along the length direction, one side of the sampling barrel close to the guide plate is opened and fixedly provided with a wire filter, the other side of the sampling barrel is penetrated by a water inlet, and a sealing mechanism for blocking the water inlet is provided in the sampling barrel.

[0006] Preferably, a slot is provided on the side of the guide plate, and a plug plate is fixed on the side of the sampling tube close to the wire filter, the plug plate is inserted into the slot, and the plug plate can slide in the length direction of the slot.

[0007] Preferably, fixing bolts are connected between the guide plate and the plug plate.

[0008] Preferably, the blocking mechanism includes a baffle plate disposed in the sampling tube and located on the inner side of the water inlet, and a limiting structure disposed on the guide plate for limiting the movement of the baffle plate.

[0009] Preferably, the baffle is fixed with a fixing rod, the other end of the fixing rod connected to the baffle passes through the wire filter, and the limiting structure includes a long rod and an electric telescopic rod, the electric telescopic rod is fixedly connected to the guide plate, the side of the long rod is in contact with the end of the fixing rod, and the long rod is fixedly connected to the telescopic end of the electric telescopic rod and is slidably arranged in the guide plate.

[0010] Preferably, a fixing frame is fixed to the rear end of the remote-controlled boat, a connecting rod is detachably fixed to the fixing frame, and the upper end of the rotating shaft is rotatably connected to the lower end of the connecting rod via a bearing.

[0011] Preferably, a slide groove is embedded in the inner side of the slot, and the long rod is slidably arranged in the slide groove.

[0012] Beneficial effects: The suspended sediment sampling device of the utility model changes its position by remotely controlling the movement of a small boat, and cooperates with the automatic angle adjustment of the guide plate, so that multiple sampling tubes on the guide plate can obtain representative suspended sediment samples at different depths, thereby improving the accuracy and efficiency of the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] In the figure: 1. remote-controlled boat; 11. fixing frame; 12. connecting rod; 13. bearing; 2. rotating shaft; 3. guide plate; 31. slot; 311. slideway; 4. sampling tube; 41. water inlet; 42. plug plate; 5. wire filter; 6. blocking mechanism; 61. baffle; 62. limiting structure; 621. long rod; 622. electric telescopic rod; 63. fixing rod; 7. fixing bolt. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 The specific implementation modes of the present utility model are further described in detail.

[0019] Depend on Figure 1-3The utility model provides a suspended sediment sampling device, comprising a remote-controlled boat 1. The tail of the remote-controlled boat 1 is provided with a vertically arranged rotating shaft 2, and a guide plate 3 is fixedly connected to the rotating shaft 2. When in use, the remote-controlled boat 1 is placed on the water surface, and the remote-controlled boat 1 can be controlled to move arbitrarily on the water surface by remote control. The guide plate 3 and the remote-controlled boat 1 are connected by the rotating shaft 2. Under the flow of the water body, the guide plate 3 can automatically rotate and adjust the angle so that the plane where it is located can always remain parallel to the flow direction of the water body. The guide plate 3 A sampling tube 4 for sampling suspended sediment is slidably provided along the length direction. The sampling tube 4 has an opening on one side close to the guide plate 3 and is fixedly provided with a wire filter 5. A water flow inlet 41 is penetrated on the other side of the sampling tube 4. Since the plane where the guide plate 3 is located is always parallel to the direction of water flow, the water flow inlet 41 on one side of the sampling tube 4 is always facing the upstream water flow direction. In this way, water flows into the sampling tube 4 through the water flow inlet 41, and suspended sediment at the same depth in the water flow is retained due to the effect of the wire filter 5.

[0020] In addition, in order to facilitate the control of the opening and closing of the water inlet 41, a blocking mechanism 6 for blocking the water inlet 41 is provided in the sampling tube 4. In this way, when the remote control boat 1 is moved by remote control, the water inlet 41 can be temporarily blocked by the blocking mechanism 6. After the remote control boat 1 reaches the designated position, the water inlet 41 is opened again for sampling. The following is a specific embodiment of the blocking mechanism 6:

[0021] The blocking mechanism 6 includes a baffle 61 arranged in the sampling tube 4 and located on the inner side of the water inlet 41, and a limiting structure 62 arranged on the guide plate 3 for limiting the movement of the baffle 61. The baffle 61 is fixed with a fixing rod 63. The other end of the fixing rod 63 connected to the baffle 61 passes through the wire filter 5. The limiting structure 62 includes a long rod 621 and an electric telescopic rod 622. The electric telescopic rod 622 is fixedly connected to the guide plate 3. The side of the long rod 621 contacts the end of the fixing rod 63, and the long rod 621 is fixedly connected to the telescopic end of the electric telescopic rod 622 and is slidably arranged in the guide plate 3. At the beginning, the electric telescopic rod 622 is not extended, so that the long rod 621 resists The fixing rod 63 is pressed against the baffle 61 through the fixing rod 63, so that the baffle 61 blocks the water flow inlet 41 to prevent the water flow from entering the sampling tube 4 from the water flow inlet 41. When the water flow inlet 41 needs to be opened, the electric telescopic rod 622 is extended by remote control to make the long rod 621 move away from the sampling tube 4. Under the action of the flow of water, the baffle 61 automatically moves in the direction of the long rod 621 to open the water flow inlet 41. Conversely, when the sampling is stopped, the electric telescopic rod 622 is controlled to shorten, and the fixing rod 63 can be driven to move through the long rod 621, so that the baffle 61 blocks the water flow inlet 41 to prevent suspended sediment from entering the sampling tube 4.

[0022] In some embodiments, a slot 31 is provided on the side of the guide plate 3, and a plug plate 42 is fixed on the side of the sampling tube 4 close to the wire filter 5. The plug plate 42 is inserted into the slot 31 and is connected to the guide plate 3 by a fixing bolt 7. The plug plate 42 can slide in the length direction of the slot 31. In this way, the sampling depth of the sampling tube 4 can be adjusted by sliding the position of the plug plate 42 in the slot 31. After the sampling is completed, the plug plate 42 can be removed from the slot 31 by removing the fixing bolt 7, thereby removing the sampling tube 4 and pouring out the mud and sand in the sampling tube 4.

[0023] In some embodiments, a fixing hole 310 is provided through the slot 31 along the length direction, and the fixing hole 310 and the fixing bolt 7 are used to conveniently fix the plug plate 42, thereby fixing the sampling depth.

[0024] In some embodiments, a fixing frame 11 is fixed to the rear end of the remote-controlled boat 1, and a connecting rod 12 is detachably fixed to the fixing frame 11. The upper end of the connecting rod 12 passes through the fixing frame 11, and a nut 14 is threadedly connected to the upper end of the connecting rod 12, so that the connecting rod 12 is suspended on the fixing frame 11, and the upper end of the rotating shaft 2 is rotatably connected to the lower end of the connecting rod 12 through a bearing 13, so that the guide plate 3 is hung on the tail of the remote-controlled boat 1, and under the action of the water flow, the guide plate 3 can automatically rotate and adjust the angle.

[0025] In some embodiments, a slide groove 311 is embedded in the inner side of the slot 31 , and the long rod 621 is slidably disposed in the slide groove 311 .

[0026] Working principle: When in use, first insert the plug plate 42 of the sampling tube 4 into the slot 31 of the guide plate 3, slide and adjust the position of the plug plate 42 and then fix it with the fixing bolt 7. When the plug plate 42 is inserted into the slot 31, under the limit of the long rod 621, the fixing rod 63 is pressed against the baffle 61, so that the baffle 61 blocks the water flow inlet 41. Then put the remote control boat 1 on the river surface and install the guide plate 3 at the tail of the remote control boat 1. After the remote control boat 1 is put on the water surface, under the action of the flow of water, the guide plate 3 automatically rotates to a position where the plane is parallel to the flow direction of the water flow, so that the water flow inlet 41 is facing the flow direction of the water flow, and the electric telescopic rod 622 is extended by remote control, so that the long rod 621 is moved away from the sampling tube 4. Direction moves, under the action of the flow of water, the baffle 61 automatically moves in the direction of the long rod 621, so that the water inlet 41 is opened. After the water inlet 41 is opened, the water flows into the sampling tube 4 through the water inlet 41, and the suspended sediment at the same depth in the water is retained due to the effect of the wire filter 5. During the sampling process, the sampling tube 4 can be moved to different positions at the same depth by remotely controlling the remote control boat 1 to move on the water surface, so that the sampling tube 4 at the same depth can obtain suspended sediment at different positions. In addition, the number of sampling tubes 4 can be multiple, so that the sediment distribution at different depths can be obtained, making the sampling more random, thereby making the detection result more accurate.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A suspended sediment sampling device, characterized in that: The remote-controlled boat (1) comprises a remote-controlled boat (1), wherein a vertically arranged rotating shaft (2) is rotatably provided at the tail of the remote-controlled boat (1), a guide plate (3) is fixedly connected via the rotating shaft (2), a sampling tube (4) is slidably provided on the guide plate (3) along the length direction, a steel wire filter (5) is fixedly provided on one side of the sampling tube (4) close to the guide plate (3), a water inlet (41) is penetrated on the other side of the sampling tube (4), and a blocking mechanism (6) for blocking the water inlet (41) is provided inside the sampling tube (4).

2. A suspended sediment sampling device according to claim 1, characterized in that: A slot (31) is provided on the side of the guide plate (3), and a plug plate (42) is fixed on the side of the sampling tube (4) close to the wire filter (5). The plug plate (42) is inserted into the slot (31), and the plug plate (42) can slide in the length direction of the slot (31).

3. A suspended sediment sampling device according to claim 2, characterized in that: A fixing bolt (7) is connected between the guide plate (3) and the plug plate (42).

4. A suspended sediment sampling device according to claim 2, characterized in that: The blocking mechanism (6) comprises a baffle (61) arranged in the sampling tube (4) and located on the inner side of the water flow inlet (41), and a limiting structure (62) arranged on the guide plate (3) for limiting the movement of the baffle (61).

5. A suspended sediment sampling device according to claim 4, characterized in that: The baffle plate (61) is fixed with a fixing rod (63); the other end of the fixing rod (63) connected to the baffle plate (61) passes through the steel wire filter (5); the limiting structure (62) comprises a long rod (621) and an electric telescopic rod (622); the electric telescopic rod (622) is fixedly connected to the guide plate (3); the side surface of the long rod (621) is in contact with the end of the fixing rod (63); and the long rod (621) is fixedly connected to the telescopic end of the electric telescopic rod (622) and is slidably arranged in the guide plate (3).

6. A suspended sediment sampling device according to claim 1, characterized in that: A fixing frame (11) is fixed to the rear end of the remote-controlled boat (1), a connecting rod (12) is detachably fixed to the fixing frame (11), and the upper end of the rotating shaft (2) is rotatably connected to the lower end of the connecting rod (12) via a bearing (13).

7. A suspended sediment sampling device according to claim 5, characterized in that: A sliding groove (311) is embedded in the inner side of the slot (31), and the long rod (621) is slidably arranged in the sliding groove (311).

Images