Reservoir sediment sampling device

Abstract

The utility model belongs to environmental engineering technical field especially is a kind of reservoir sediment sampling device, including sampling executive component, traction transmission arm and take out driving mechanism, the take out driving mechanism is connected the sampling executive component by the traction transmission arm, still include the transmission arm fixed establishment of setting in the sampling executive component surface, the transmission arm fixed establishment includes the base body of fixed connection in the bottom end of the take out driving mechanism, the surface of the base body is provided with swing seat, the surface of the swing seat is provided with the embrace and clamps arm symmetrically, the surface fixedly connected with guide sliding block of the embrace and clamps arm, the surface of the base body is provided with the guide sliding slot matched with the guide sliding block;The utility model embeds the traction transmission arm bottom end into placing groove, directly completes initial positioning, cooperates two-way threaded rod and embrace and clamps arm to complete the fixing and disassembly of traction transmission arm, and can adapt to different specifications transmission arm.

Description

Technical Field

[0001] This utility model belongs to the field of environmental engineering technology, specifically relating to a reservoir bottom sediment sampling device. Background Technology

[0002] As an important component of the aquatic ecosystem, the properties of reservoir sediment directly affect water quality, the health of aquatic organisms, and the safety of the surrounding environment. Sampling of reservoir sediment is a key step in water environment monitoring and ecological restoration. It is mainly used to analyze the distribution characteristics, sedimentation status, and ecological risks of pollutants (such as heavy metals, organic matter, and nutrients) in the sediment, providing data support for reservoir pollution control, dredging projects, and ecological protection.

[0003] In existing designs, single-sided clamping or snap-on fixing of the traction transmission arm is often used. These fixing mechanisms tighten the transmission arm with a single bolt, which can easily lead to uneven clamping force, causing the transmission arm to shake. During sampling, the device tilts, disturbing the sample. Furthermore, they cannot adapt to transmission arms of different diameters and require multiple sets of fixing components, making operation cumbersome.

[0004] Therefore, a reservoir sediment sampling device was designed to solve the above problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a reservoir sediment sampling device. This device achieves initial positioning by embedding the bottom end of the traction drive arm into a placement groove. The traction drive arm is then fixed and disassembled using a bidirectional threaded rod and a clamping arm. Furthermore, it is adaptable to drive arms of different specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reservoir sediment sampling device includes a sampling execution component, a traction transmission arm, and a retraction and deployment drive mechanism. The retraction and deployment drive mechanism is connected to the sampling execution component through the traction transmission arm. The device also includes a transmission arm fixing mechanism disposed on the surface of the sampling execution component.

[0008] The transmission arm fixing mechanism includes a base body fixedly connected to the bottom end of the retraction drive mechanism. A swing seat is provided on the surface of the base body, and clamping arms are symmetrically arranged on the surface of the swing seat. A guide slider is fixedly connected to the surface of the clamping arms. A guide groove that cooperates with the guide slider is opened on the surface of the base body. A bidirectional threaded rod is rotatably connected to the surface of the base body, and the guide slider is threadedly connected to the surface of the bidirectional threaded rod. A placement groove is opened on the surface of the base body.

[0009] As a preferred embodiment of the reservoir sediment sampling device of this utility model, a drive motor is installed on the surface of the base body, and the output shaft of the drive motor is fixedly connected to the bidirectional threaded rod.

[0010] As a preferred embodiment of the reservoir sediment sampling device of this utility model, the opposite side of the clamping arm is designed as an arc shape.

[0011] As a preferred embodiment of the reservoir sediment sampling device of this utility model, a rubber pad is fixedly connected to one side of the clamping arm opposite to the other side.

[0012] As a preferred embodiment of the reservoir bottom sediment sampling device of this utility model, it further includes a rotating shaft removal mechanism disposed on the surface of the base body;

[0013] The rotating shaft removal mechanism includes a rotating shaft rotatably connected to the bottom end of the traction drive arm. The rotating shaft slides on the surface of the base body, and the surface of the base body is provided with a groove that cooperates with the rotating shaft.

[0014] As a preferred embodiment of the reservoir bottom sediment sampling device of this utility model, the end of the rotating shaft away from the slot is symmetrically and fixedly connected with a linkage wedge block, the surface of the linkage wedge block is provided with a disassembly wedge block that cooperates with the linkage wedge block, and the surface of the base body is provided with a receiving cavity that cooperates with the linkage wedge block and the disassembly wedge block.

[0015] As a preferred embodiment of the reservoir bottom sediment sampling device of this utility model, an operating push rod is slidably connected to the surface of the base body, and the bottom end of the operating push rod is fixedly connected to the disassembly wedge block.

[0016] As a preferred embodiment of the reservoir bottom sediment sampling device of this utility model, a spring groove is provided on the surface of the base body, and a compression spring is sleeved on the surface of the rotating shaft. The two ends of the compression spring are fixedly connected to the base body through the spring groove.

[0017] As a preferred embodiment of the reservoir bottom sediment sampling device of this utility model, it also includes an angle adjustment mechanism disposed on the surface of the base body.

[0018] The angle adjustment mechanism includes a first hinged base fixedly connected to the surface of the base body, a cylinder rotatably connected to the surface of the first hinged base, a push rod fixedly connected to the top of the cylinder, a second hinged base rotatably connected to the top of the push rod, and the second hinged base being fixedly connected to the swing seat.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: A transmission arm fixing mechanism is added to this application. By embedding the bottom end of the traction transmission arm into the placement groove, the initial positioning is directly completed. The traction transmission arm is fixed and disassembled in conjunction with the bidirectional threaded rod and the clamping arm. It can also be adapted to transmission arms of different specifications. At the same time, a rotating shaft removal mechanism is added. The rotating shaft can be quickly installed and disassembled through the wedge structure. The disassembly can be completed by manually pulling the operating push rod. The rotating shaft can be moved without the need for external tools, thereby realizing the disassembly and replacement of the traction transmission arm. At the same time, an angle adjustment mechanism is added. The angle of the traction transmission arm can be adjusted by the extension and retraction of the cylinder piston rod, which can quickly adapt to the sampling angle requirements of different terrains such as shallow water and deep water areas of reservoirs. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is a schematic diagram of the swing seat in this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping arm in this utility model;

[0024] Figure 4 This is a schematic diagram of the traction transmission arm in this utility model;

[0025] Figure 5 In this utility model Figure 4 Enlarged structural diagram at point A;

[0026] Figure 6 This is a schematic diagram of the structure of the first hinged base in this utility model;

[0027] In the picture:

[0028] 1. Sampling execution component; 11. Retraction and release drive mechanism; 2. Traction transmission arm; 3. Transmission arm fixing mechanism; 31. Base body; 32. Swing seat; 33. Clamping arm; 34. Guide slider; 35. Guide groove; 36. Bidirectional threaded rod; 37. Placement groove; 38. Drive motor; 4. Rotating shaft removal mechanism; 41. Rotating shaft; 42. Slot; 43. Linkage wedge block; 44. Disassembly wedge block; 45. Accommodation cavity; 46. Operating push rod; 47. Spring groove; 48. Compression spring; 5. Angle adjustment mechanism; 51. First hinge base; 52. Cylinder; 53. Push rod; 54. Second hinge base. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figure 1 As shown;

[0032] A reservoir sediment sampling device includes a sampling execution component 1, a traction transmission arm 2, and a retraction and extension drive mechanism 11, wherein the retraction and extension drive mechanism 11 is connected to the sampling execution component 1 via the traction transmission arm 2.

[0033] In this implementation scheme: the existing sampling execution component 1, traction transmission arm 2, and retraction drive mechanism 11 complete the sampling of reservoir bottom sediment. However, in this existing design, the traction transmission arm is mostly fixed by single-sided clamping or snap-fit. These fixing mechanisms tighten the transmission arm with a single bolt, which easily leads to uneven clamping force, resulting in the transmission arm shaking, tilting of the device during sampling, and disturbance of the sample. Furthermore, it cannot adapt to transmission arms of different diameters, requiring multiple sets of fixing components, which is cumbersome to operate. In combination, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, a transmission arm fixing mechanism 3, a rotating shaft removal mechanism 4, and an angle adjustment mechanism 5 are added to this application.

[0034] Furthermore:

[0035] like Figures 1 to 3 As shown:

[0036] In conjunction with the above: a reservoir bottom sediment sampling device, further comprising a transmission arm fixing mechanism 3 disposed on the surface of the sampling execution component 1;

[0037] The transmission arm fixing mechanism 3 includes a base body 31 fixedly connected to the bottom end of the retraction drive mechanism 11. A swing seat 32 is provided on the surface of the base body 31. A clamping arm 33 is symmetrically arranged on the surface of the swing seat 32. A guide slider 34 is fixedly connected to the surface of the clamping arm 33. A guide groove 35 that cooperates with the guide slider 34 is opened on the surface of the base body 31. A bidirectional threaded rod 36 is rotatably connected to the surface of the base body 31, and the guide slider 34 is threadedly connected to the surface of the bidirectional threaded rod 36. A placement groove 37 is opened on the surface of the base body 31.

[0038] In this implementation scheme: During sampling, the bottom end of the traction drive arm 2 is first placed in the placement groove 37 of the base body 31 for pre-positioning. Then, the bidirectional threaded rod 36 is driven to rotate. Since the guide slider 34 is embedded in the guide groove 35, its rotational freedom is restricted, and it can only move in a straight line along the groove. When the bidirectional threaded rod 36 rotates forward and backward, the guide sliders 34 on both sides move closer or further away synchronously through the threaded transmission, thereby driving the clamping arm 33 to open and close, clamping or releasing the traction drive arm 2 to achieve stable fixation. After fixation, the retraction drive mechanism 11 controls the lifting and lowering of the sampling execution component 1 through the traction drive arm 2 to complete the bottom mud sampling. The placement groove 37 provides initial positioning, reduces manual calibration steps, and improves assembly efficiency. The threaded transmission and the guide groove 35 cooperate to achieve precise synchronous clamping of the clamping arm 33, adapting to different specifications of drive arms, and providing high fixation stability.

[0039] Furthermore:

[0040] like Figure 3 As shown:

[0041] In an optional embodiment, a drive motor 38 is mounted on the surface of the base body 31, and the output shaft of the drive motor 38 is fixedly connected to the bidirectional threaded rod 36.

[0042] In this embodiment: after the drive motor 38 is powered on, its output shaft directly drives the bidirectional threaded rod 36 to rotate. The threads at both ends of the bidirectional threaded rod 36 rotate in opposite directions. When rotating forward, the guide sliders 34 on both sides move towards the center along the guide groove 35, causing the clamping arm 33 to close. When rotating in reverse, the clamping arm 33 opens, realizing automated clamping control. Electric drive replaces manual operation, reducing labor costs and improving clamping efficiency.

[0043] Furthermore:

[0044] like Figure 2 As shown:

[0045] In an alternative embodiment, the opposite side of the clamping arm 33 is designed to be arc-shaped.

[0046] In this embodiment, the arc-shaped surfaces of the clamping arms 33 are in contact with the outer contour of the traction transmission arm 2. When closed, the arc-shaped surfaces make multiple contacts and wrap around the traction transmission arm 2, forming a tight clamp. The arc-shaped surfaces increase the contact area, disperse the clamping force, and avoid damage to the surface of the traction transmission arm 2 caused by local stress concentration.

[0047] Furthermore:

[0048] In an optional embodiment, a rubber pad is fixedly connected to the opposite side of the clamping arm 33.

[0049] In this embodiment: when the clamping arm 33 is closed, the rubber pad is in close contact with the surface of the traction drive arm 2. The elastic deformation of the rubber fills the gap, protects the surface of the traction drive arm 2, and prevents the traction drive arm 2 from sliding through high friction, thus adapting to the vibration and water flow impact of the complex underwater environment.

[0050] Furthermore:

[0051] like Figure 1 and Figure 5 As shown:

[0052] In an optional embodiment, a rotating shaft removal mechanism 4 is also provided on the surface of the base body 31;

[0053] The rotating shaft removal mechanism 4 includes a rotating shaft 41 rotatably connected to the bottom end of the traction transmission arm 2. The rotating shaft 41 slides on the surface of the base body 31, and the surface of the base body 31 is provided with a groove 42 that cooperates with the rotating shaft 41.

[0054] In this implementation scheme: the bottom end of the traction drive arm 2 is rotatably connected to the rotating shaft 41, allowing the traction drive arm 2 to rotate around the rotating shaft 41. Simultaneously, the rotating shaft 41 forms a sliding engagement with the slot 42 of the base body 31, allowing it to slide along the slot 42 on the surfaces of the base body 31 and the traction drive arm 2. In the non-removed state, the rotating shaft 41 is embedded in the slot 42, restricting the radial movement of the traction drive arm 2 and ensuring its secure connection to the base body 31. When it is necessary to remove the traction drive arm 2, external force is applied to push the rotating shaft 41 to slide along the slot 42, disengaging it from the engagement between the slot 42 and the traction drive arm 2, thereby achieving the disassembly of the traction drive arm 2.

[0055] Furthermore:

[0056] like Figure 5 As shown:

[0057] In an optional embodiment, a linkage wedge block 43 is symmetrically fixedly connected to one end of the rotating shaft 41 away from the slot 42. The surface of the linkage wedge block 43 is provided with a disassembly wedge block 44 that cooperates with the linkage wedge block 43. The surface of the base body 31 is provided with a receiving cavity 45 that cooperates with the linkage wedge block 43 and the disassembly wedge block 44.

[0058] In this embodiment: when it is necessary to remove the traction drive arm 2, an external force is applied to drive the disassembly wedge block 44 to slide along the receiving cavity 45. The disassembly wedge block 44 pushes the linkage wedge block 43 through the inclined surface, thereby driving the rotating shaft 41 to slide until the rotating shaft 41 disengages from the slot 42 and the traction drive arm 2, and the disassembly is completed.

[0059] Furthermore:

[0060] like Figure 5 As shown:

[0061] In an optional embodiment, an operating push rod 46 is slidably connected to the surface of the base body 31, and the bottom end of the operating push rod 46 is fixedly connected to the disassembly wedge block 44.

[0062] In this embodiment, the operating push rod 46 is fixedly connected to the disassembly wedge block 44 and can slide on the surface of the base body 31. When it is necessary to remove the traction transmission arm 2, the operator manually pushes the operating push rod 46, which will drive the disassembly wedge block 44 to slide along the receiving cavity 45 to complete the disassembly operation.

[0063] Furthermore:

[0064] like Figure 5 As shown:

[0065] In an optional embodiment, a spring groove 47 is provided on the surface of the base body 31, and a compression spring 48 is sleeved on the surface of the rotating shaft 41. The two ends of the compression spring 48 are fixedly connected to the base body 31 through the spring groove 47.

[0066] In this embodiment: the spring groove 47 of the base body 31 is used to fix the compression spring 48. The compression spring 48 is sleeved on the surface of the rotating shaft 41. When the traction transmission arm 2 is removed, the operating push rod 46 is pushed to make the disassembly wedge block 44 push out the linkage wedge block 43. At this time, the compression spring 48 is compressed. After the removal is completed, the operating push rod 46 is released, the compression spring 48 releases its elastic potential energy, and pushes the rotating shaft 41 into the slot 42, so that the linkage wedge block 43 and the disassembly wedge block 44 re-fit and restore the initial locking state. The automatic reset function does not require manual return of the rotating shaft 41, which simplifies the operation process and improves work efficiency. The preload of the compression spring 48 ensures that the rotating shaft 41 is firmly embedded in the slot 42 in the non-removed state, preventing the rotating shaft 41 from accidentally slipping out due to vibration or external force, and improving the safety of the sampling device during operation.

[0067] Furthermore:

[0068] like Figure 6 As shown:

[0069] In an optional embodiment, an angle adjustment mechanism 5 is further provided on the surface of the base body 31;

[0070] The angle adjustment mechanism 5 includes a first hinge base 51 fixedly connected to the surface of the base body 31, a cylinder 52 rotatably connected to the surface of the first hinge base 51, a push rod 53 fixedly connected to the top of the cylinder 52, a second hinge base 54 rotatably connected to the top of the push rod 53, and the second hinge base 54 fixedly connected to the swing seat 32.

[0071] In this implementation scheme: the cylinder 52 controls the extension and retraction of the piston rod through air intake or exhaust, which drives the push rod 53 to make linear motion. Since the cylinder 52 is rotatably connected to the surface of the first hinge base 51, and the top of the push rod 53 is rotatably connected to the second hinge base 54, the first hinge base 51 and the second hinge base 54 move together, thereby driving the traction transmission arm 2 to rotate around the axis of the rotating shaft 41, converting the linear motion into the angle change of the swing seat 32, thereby adjusting the angle between the traction transmission arm 2 and the base body 31 to adapt to the sampling needs of different water depths and terrains.

[0072] Working principle: The bottom end of the traction transmission arm 2 is placed in the placement groove 37 of the base body 31. The drive motor 38 is started, and its output shaft drives the bidirectional threaded rod 36 to rotate. Since the guide slider 34 is embedded in the guide groove 35 of the base body 31, its rotational freedom is limited, and it can only move linearly along the groove. When the bidirectional threaded rod 36 rotates forward, the guide sliders 34 on both sides move towards the center along the guide groove 35, driving the clamping arm 33 to close and firmly clamp the traction transmission arm 2. When it rotates in reverse, the clamping arm 33 opens. After installation, the retraction drive mechanism 11 controls the sampling execution component 1 to descend to the bottom of the reservoir through the traction transmission arm 2. If it is necessary to adjust the sampling angle, the cylinder 52 is started to control the piston rod to extend or retract through air intake or exhaust, driving the top rod 53 to move linearly. Since the first hinge base 51 and the cylinder 52, and the top rod 53 and the second hinge base 54 are all rotatably connected, the linear movement of the top rod 53 is converted into the angle change of the swing seat 32, which in turn drives the traction transmission arm 2 to move linearly. The rotating shaft 41 rotates to adjust the angle with the base body 31 to adapt to different sampling requirements. After the sampling execution component 1 completes the bottom sediment sampling, the retraction drive mechanism 11 lifts it above the water surface through the traction transmission arm 2. When the traction transmission arm 2 needs to be removed, the operating push rod 46 is pulled, which slides on the surface of the base body 31, driving the disassembly wedge block 44 fixedly connected to it to slide along the receiving cavity 45. The disassembly wedge block 44 uses the inclined surface to push the linkage wedge block 43. The linkage wedge block 43 drives the rotating shaft 41 to overcome the elastic force of the compression spring 48 and slide along the matching sliding groove on the base body 31, so that the rotating shaft 41 is disengaged from the traction transmission arm 2, thereby completing the disassembly of the traction transmission arm 2. After disassembly, the operating push rod 46 is released, the compression spring 48 releases its elastic potential energy, and pushes the rotating shaft 41 to slide in the opposite direction along the sliding groove and lock into the slot 42, so that the linkage wedge block 43 and the disassembly wedge block 44 re-fit and return to the initial locked state for the next use.

[0073] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reservoir sediment sampling device, characterized by: It includes a sampling execution component (1), a traction transmission arm (2) and a take-up and release drive mechanism (11), wherein the take-up and release drive mechanism (11) is connected to the sampling execution component (1) through the traction transmission arm (2), and also includes a transmission arm fixing mechanism (3) disposed on the surface of the sampling execution component (1); The transmission arm fixing mechanism (3) includes a base body (31) fixedly connected to the bottom end of the retraction drive mechanism (11). A swing seat (32) is provided on the surface of the base body (31). A clamping arm (33) is symmetrically arranged on the surface of the swing seat (32). A guide slider (34) is fixedly connected to the surface of the clamping arm (33). A guide groove (35) that cooperates with the guide slider (34) is opened on the surface of the base body (31). A bidirectional threaded rod (36) is rotatably connected to the surface of the base body (31), and the guide slider (34) is threadedly connected to the surface of the bidirectional threaded rod (36). A placement groove (37) is opened on the surface of the base body (31).

2. The reservoir sediment sampling device of claim 1, wherein: A drive motor (38) is mounted on the surface of the base body (31), and the output shaft of the drive motor (38) is fixedly connected to the bidirectional threaded rod (36).

3. The reservoir sediment sampling device of claim 1, wherein: The opposite side of the clamping arm (33) is designed to be arc-shaped.

4. The reservoir sediment sampling device of claim 1, wherein: A rubber pad is fixedly connected to the opposite side of the clamping arm (33).

5. The reservoir sediment sampling device of claim 1, wherein: It also includes a rotating shaft removal mechanism (4) disposed on the surface of the base body (31); The rotating shaft removal mechanism (4) includes a rotating shaft (41) rotatably connected to the bottom end of the traction transmission arm (2). The rotating shaft (41) slides on the surface of the base body (31), and the surface of the base body (31) is provided with a groove (42) that cooperates with the rotating shaft (41).

6. The reservoir sediment sampling device of claim 5, wherein: The rotating shaft (41) is symmetrically fixedly connected to a linkage wedge (43) at one end away from the slot (42). The surface of the linkage wedge (43) is provided with a disassembly wedge (44) that cooperates with the linkage wedge (43). The surface of the base body (31) is provided with a receiving cavity (45) that cooperates with the linkage wedge (43) and the disassembly wedge (44).

7. The reservoir sediment sampling device of claim 6, wherein: An operating push rod (46) is slidably connected to the surface of the base body (31), and the bottom end of the operating push rod (46) is fixedly connected to the disassembly wedge block (44).

8. The reservoir sediment sampling device according to claim 7, characterized in that: The base body (31) has a spring groove (47) on its surface, and a compression spring (48) is fitted on the surface of the rotating shaft (41). The two ends of the compression spring (48) are fixedly connected to the base body (31) through the spring groove (47).

9. The reservoir sediment sampling device of claim 1, wherein: It also includes an angle adjustment mechanism (5) disposed on the surface of the base body (31); The angle adjustment mechanism (5) includes a first hinge base (51) fixedly connected to the surface of the base body (31), a cylinder (52) rotatably connected to the surface of the first hinge base (51), a push rod (53) fixedly connected to the top of the cylinder (52), a second hinge base (54) rotatably connected to the top of the push rod (53), and the second hinge base (54) fixedly connected to the swing seat (32).

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