Sludge sampling device

Abstract

The utility model discloses a sludge sampling device. The sludge sampling device comprises a sampling grab bucket and a control handle, through cooperative use of a positioning device, a positioning plate shell, a positioning plate, a spring and a plate shell groove, the problems that an existing grab bucket type sludge sampler is equipment used for collecting underwater sludge or sediments, the sampler sinks into water during use, after a sampling grab bucket makes contact with the sludge, the sampling grab bucket is lifted out through a rope, and the sampling grab bucket is damaged are solved. When a sampling grab bucket moves, the sampling grab bucket is gradually closed, sludge is grabbed into an inner cavity of the sampling grab bucket, generally, a counterweight ring needs to be additionally arranged on a sampler so as to ensure that the sampler can smoothly sink to the water bottom, a counterweight block is installed in a bolt connection mode, and the phenomenon that the counterweight block falls off due to the fact that the bolt is prone to rusting and loosening in water is avoided. The problem that the existing grab bucket type sludge sampler is not stable enough due to the fact that the surface of the sampler is possibly impacted and damaged due to shaking of a balancing weight, but the existing grab bucket type sludge sampler is not provided with a component for more stably installing a balancing weight ring is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sludge sampling devices, and particularly relates to a sludge sampling device. Background Technology

[0002] Silt sampling is used to determine the properties and composition of silt in order to select appropriate silt removal machinery and equipment, and to ensure that the quality of the dredged silt meets requirements. A silt sampling device is a device used to collect silt samples, commonly used in environmental monitoring, engineering surveys, and scientific research. In summary, the existing technology has the following problems: The grab-type silt sampler is a device used to collect bottom silt or sediment. During use, the sampler is submerged in water. Once the sampling grab contacts the silt, it is lifted out using a rope. The movement of the sampling grab... The sampler will gradually close and grab the sludge into the inner cavity of the sampling grab bucket. Usually, the sampler needs to add a counterweight ring to ensure that the sampler can sink smoothly to the bottom of the water. The counterweight is installed by bolt connection. Bolts are prone to rust and loosening in water, causing the counterweight to fall off. Moreover, the shaking of the counterweight may cause impact damage to the surface of the sampler. This installation method is not stable enough. However, the existing grab bucket sludge sampler does not have a component for more stable installation of the counterweight ring. Therefore, a sludge sampling device is proposed to solve the above problems. Utility Model Content

[0003] To address the problems of existing technologies, this utility model provides a sludge sampling device that offers the advantage of more stable installation of the counterweight ring in a grab bucket-type sludge sampler. This solves the problem that existing grab bucket-type sludge samplers, used for collecting bottom sludge or sediment, require a counterweight ring to ensure successful descent. The counterweight is typically installed using bolts, which are prone to rusting and loosening in water, causing the counterweight to fall off. Furthermore, the shaking of the counterweight can damage the sampler surface. This installation method is not stable enough. However, existing grab bucket-type sludge samplers lack a component for more stable installation of the counterweight ring.

[0004] This utility model is implemented as follows: a sludge sampling device includes a sampling grab and a control handle. The bottom of the control handle is fixedly connected to the top of the sampling grab. Two positioning shells are fixedly connected to the front and rear sides of the sampling grab. A circular shell is movably connected to the inner cavity of the positioning shell. A counterweight ring is movably connected to the opposite side of the positioning shell and the circular shell. The counterweight ring is sleeved on the surface of the circular shell. A control turntable is movably connected to the inner cavity of the circular shell. The side of the control turntable away from the sampling grab penetrates the circular shell and extends to the outer side of the inner cavity of the circular shell. A positioning device is provided in the inner cavity of the circular shell.

[0005] In a preferred embodiment of this invention, the positioning device includes four positioning plates. The side of the positioning plate away from the control turntable penetrates through the circular shell and extends to the outer side of the inner cavity of the circular shell. The inner cavity of the circular shell is provided with four positioning plates that cooperate with the positioning plates. The surface of the positioning plate is movably connected to the inner cavity of the positioning plate. A spring is fixedly connected to the surface of the positioning plate. By setting the positioning device, when the counterweight ring moves to the side opposite to the positioning circular shell, the positioning device has a limiting effect on the position of the counterweight ring.

[0006] In a preferred embodiment of this invention, a round rod is fixedly connected to the surface of the positioning plate shell, and four round rod compression frames that cooperate with the round rod are movably connected to the inner cavity of the round shell through a rotating shaft. The inner cavity of the round rod compression frame is movably connected to the surface of the round rod. By setting the round rod and the round rod compression frame, when the round rod compression frame rotates, it can apply pressure to the round rod, and the round rod subjected to the compression force can drive the positioning plate shell to move.

[0007] In a preferred embodiment of this invention, a rotating disk that works in conjunction with a round rod extrusion frame is fixedly connected to the surface of the control turntable. The surface of the rotating disk contacts the surface of the round rod extrusion frame. By setting the rotating disk, when the rotating disk rotates, it can generate extrusion force on the round rod extrusion frame. The extrusion force generated by the rotating disk on the round rod extrusion frame can drive the round rod extrusion frame to rotate through the rotating shaft.

[0008] In a preferred embodiment of this invention, a limiting rotating block is fixedly connected to the bottom of the rotating rod disk, and a limiting rotating shell that cooperates with the limiting rotating block is fixedly connected to the inner cavity of the circular shell. The surface of the limiting rotating block is movably connected to the inner cavity of the limiting rotating shell, and the surfaces of the positioning plate and the spring are both fixedly connected to the surface of the limiting rotating shell. By setting the limiting rotating block and the limiting rotating shell, when the rotating rod disk rotates, it will drive the limiting rotating block to rotate along the inner cavity of the limiting rotating shell. The cooperation of the limiting rotating block and the limiting rotating shell has a limiting effect on the rotation position of the rotating rod disk.

[0009] As a preferred embodiment of this utility model, a sealing chuck is fixedly connected to the surface of the control turntable. The surface of the sealing chuck is in close contact with the surface of the fixed shell. The sealing chuck is made of rubber. By setting the sealing chuck, when the control turntable rotates, it will drive the sealing chuck to rotate along the surface of the circular shell. The setting of the sealing chuck increases the sealing performance of the circular shell and effectively prevents water from entering the inner cavity of the circular shell.

[0010] As a preferred embodiment of this utility model, the inner cavity of the positioning circular shell is provided with four plate shell grooves that cooperate with the positioning plate shell. The surface of the positioning plate shell contacts the inner cavity of the plate shell groove. By providing the plate shell groove, when the circular shell moves into the inner cavity of the positioning circular shell, the rotating control turntable is rotated, and at the same time, the force generated by the spring restoring its shape will drive the positioning plate shell to be inserted into the inner cavity of the plate shell groove. The cooperation between the positioning plate shell and the plate shell groove has a limiting effect on the position of the circular shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model solves the problem of existing grab bucket sludge samplers, which are devices used to collect bottom sludge or sediment. In use, the sampler is submerged in water, and when the sampling grab bucket contacts the sludge, it is pulled out by a rope. As the sampling grab bucket moves, it gradually closes, grabbing the sludge into its inner cavity. Typically, a counterweight ring is added to ensure the sampler sinks smoothly to the bottom. The counterweight is installed using bolts, which are prone to rusting and loosening in water, causing the counterweight to fall off. Furthermore, the shaking of the counterweight may cause impact damage to the sampler surface. This installation method is not stable enough. However, existing grab bucket sludge samplers lack components for a more stable installation of the counterweight ring.

[0013] 2. This utility model, by setting a positioning device, will drive the positioning plate shell to move along the surface of the positioning plate towards the inner cavity of the circular shell when the round rod moves. At the same time, the force generated when the positioning plate shell moves will cause the spring to undergo elastic deformation, rotating the control turntable in the opposite direction. Meanwhile, the restoring force generated by the spring returning to its shape will drive the positioning plate shell to be inserted into the inner cavity of the plate shell groove. The positioning device has a limiting effect on the position of the counterweight ring. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram showing the connection between the sampling grab, the positioning shell, the counterweight ring, and the circular shell provided in this embodiment of the utility model.

[0016] Figure 3 This is a perspective sectional view of a circular shell provided in an embodiment of the present invention;

[0017] Figure 4 This is a three-dimensional schematic diagram of the connection between the positioning rotating block and the positioning rotating shell provided in this embodiment of the utility model.

[0018] In the diagram: 1. Sampling grab; 2. Control handle; 3. Positioning shell; 4. Circular shell; 5. Counterweight ring; 6. Control turntable; 7. Positioning device; 701. Positioning plate shell; 702. Positioning plate; 703. Spring; 8. Round rod; 9. Round rod compression frame; 10. Rotating rod disc; 11. Limiting rotating block; 12. Limiting rotating shell; 13. Sealing chuck; 14. Plate shell groove. Detailed Implementation

[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown in the figure, the sludge sampling device provided by this utility model includes a sampling grab 1 and a control handle 2. The bottom of the control handle 2 is fixedly connected to the top of the sampling grab 1. Two positioning shells 3 are fixedly connected to the front and rear sides of the sampling grab 1. A circular shell 4 is movably connected to the inner cavity of the positioning shell 3. A counterweight ring 5 is movably connected to the opposite side of the positioning shell 3 and the circular shell 4. The counterweight ring 5 is sleeved on the surface of the circular shell 4. A control turntable 6 is movably connected to the inner cavity of the circular shell 4. The side of the control turntable 6 away from the sampling grab 1 passes through the circular shell 4 and extends to the outer side of the inner cavity of the circular shell 4. A positioning device 7 is provided in the inner cavity of the circular shell 4.

[0022] refer to Figure 4 The positioning device 7 includes four positioning plate shells 701. The side of the positioning plate shell 701 away from the control turntable 6 passes through the circular shell 4 and extends to the outside of the inner cavity of the circular shell 4. The inner cavity of the circular shell 4 is provided with four positioning plates 702 that cooperate with the positioning plate shells 701. The surface of the positioning plate 702 is movably connected to the inner cavity of the positioning plate shell 701. A spring 703 is fixedly connected to the surface of the positioning plate shell 701.

[0023] The above scheme is adopted: by setting up a positioning device 7, when the counterweight ring 5 moves to the side opposite to the positioning shell 3 and the shell 4, the positioning device 7 has a limiting effect on the position of the counterweight ring 5.

[0024] refer to Figure 3A round rod 8 is fixedly connected to the surface of the positioning plate shell 701. Four round rod extrusion frames 9 that cooperate with the round rod 8 are movably connected to the inner cavity of the round shell 4 through a rotating shaft. The inner cavity of the round rod extrusion frame 9 is movably connected to the surface of the round rod 8.

[0025] The above solution is adopted: by setting a round rod 8 and a round rod extrusion frame 9, when the round rod extrusion frame 9 rotates, it can apply pressure to the round rod 8, and the round rod 8 subjected to the extrusion pressure can drive the positioning plate shell 701 to move.

[0026] refer to Figure 3 A rotating rod disk 10, which works in conjunction with a round rod extrusion frame 9, is fixedly connected to the surface of the control turntable 6. The surface of the rotating rod disk 10 is in contact with the surface of the round rod extrusion frame 9.

[0027] The above solution is adopted: by setting the rotating rod disk 10, when the rotating rod disk 10 rotates, it can generate a pressing force on the round rod pressing frame 9. The pressing force generated by the rotating rod disk 10 on the round rod pressing frame 9 can drive the round rod pressing frame 9 to rotate through the rotating shaft.

[0028] refer to Figure 4 The bottom of the rotating rod disk 10 is fixedly connected to a limiting rotating block 11, and the inner cavity of the circular shell 4 is fixedly connected to a limiting rotating shell 12 that works in conjunction with the limiting rotating block 11. The surface of the limiting rotating block 11 is movably connected to the inner cavity of the limiting rotating shell 12, and the surfaces of the positioning plate 702 and the spring 703 are both fixedly connected to the surface of the limiting rotating shell 12.

[0029] The above scheme is adopted: by setting a limiting rotating block 11 and a limiting rotating shell 12, when the rotating rod disk 10 rotates, it will drive the limiting rotating block 11 to rotate along the inner cavity of the limiting rotating shell 12. The cooperation of the limiting rotating block 11 and the limiting rotating shell 12 has a limiting effect on the rotation position of the rotating rod disk 10.

[0030] refer to Figure 3 A sealing chuck 13 is fixedly connected to the surface of the control turntable 6. The surface of the sealing chuck 13 is in close contact with the surface of the fixed shell. The material of the sealing chuck 13 is rubber.

[0031] The above solution is adopted: by setting a sealing chuck 13, when the control turntable 6 rotates, it will drive the sealing chuck 13 to rotate along the surface of the circular shell 4. The setting of the sealing chuck 13 increases the sealing performance of the circular shell 4 and effectively prevents water from entering the inner cavity of the circular shell 4.

[0032] refer to Figure 2 The inner cavity of the positioning shell 3 is provided with four shell grooves 14 that cooperate with the positioning shell 701, and the surface of the positioning shell 701 contacts the inner cavity of the shell grooves 14.

[0033] The above solution is adopted: by setting the plate shell groove 14, when the circular shell 4 moves into the inner cavity of the positioning circular shell 3, the control turntable 6 is rotated. At the same time, the force generated by the spring 703 restoring its shape will drive the positioning plate shell 701 to be inserted into the inner cavity of the plate shell groove 14. The cooperation between the positioning plate shell 701 and the plate shell groove 14 has a limiting effect on the position of the circular shell 4.

[0034] The working principle of this utility model:

[0035] When using the grab bucket sludge sampler, if the counterweight ring 5 needs to be installed more stably, the user first rotates the control turntable 6. When the control turntable 6 rotates, it will cause the sealing chuck 13 to rotate along the surface of the circular shell 4. The rotation of the control turntable 6 will also cause the rotating rod disc 10 to rotate along the surface of the circular rod extrusion frame 9. The rotation of the rotating rod disc 10 will cause the limiting rotating block 11 to rotate along the inner cavity of the limiting rotating shell 12. Simultaneously, the extrusion force generated by the rotating rod disc 10 on the circular rod extrusion frame 9 will cause the circular rod extrusion frame 9 to rotate along the surface of the circular rod 8 via the rotating shaft. The extrusion force generated by the circular rod extrusion frame 9 on the circular rod 8 will cause the circular rod 8 to move towards the side closer to the control turntable 6. As the circular rod 8 moves, it will cause the positioning plate shell 701 to move along the surface of the positioning plate 702 towards the circular rod 8. As one side of the inner cavity of the circular shell 4 moves, the force generated by the movement of the positioning plate shell 701 causes the spring 703 to undergo elastic deformation. When the positioning plate shell 701 has completely moved into the inner cavity of the circular shell 4, a counterweight ring 5 of appropriate weight is fitted onto the surface of the circular shell 4 according to the water depth. Then, the circular shell 4 is placed in the inner cavity of the positioning circular shell 3. When the opposite sides of the positioning circular shell 3 and the circular shell 4 are in contact with the surface of the counterweight ring 5, the control turntable 6 is rotated again in the opposite direction. At the same time, the restoring force generated by the spring 703 returning to its shape will drive the positioning plate shell 701 to be inserted into the inner cavity of the plate shell groove 14. The cooperation between the positioning plate shell 701 and the plate shell groove 14 has a limiting effect on the position of the circular shell 4 and the counterweight ring 5. At this time, the grab bucket sludge sampler completes a more stable installation of the counterweight ring 5.

[0036] In summary, this silt sampling device, through the coordinated use of positioning device 7, positioning shell 701, positioning plate 702, spring 703, and shell groove 14, solves the problem that existing grab bucket silt samplers, which are used to collect bottom silt or sediment, require a counterweight ring to ensure the sampler can sink smoothly to the bottom. The counterweight is installed using bolts, which are prone to rusting and loosening in water, causing the counterweight to fall off. Furthermore, the shaking of the counterweight may cause impact damage to the sampler surface. This installation method is not stable enough. However, existing grab bucket silt samplers lack components for a more stable installation of the counterweight ring.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge sampling device comprising a sampling grab (1) and a control handle (2), characterized in that: The bottom of the control handle (2) is fixedly connected with the top of the sampling grab bucket (1), the front side and the rear side of the sampling grab bucket (1) are fixedly connected with two positioning circular shells (3), the inner cavities of the positioning circular shells (3) are movably connected with circular shells (4), the opposite sides of the positioning circular shells (3) and the circular shells (4) are movably connected with counterweight rings (5), the counterweight rings (5) are sleeved on the surfaces of the circular shells (4), the inner cavities of the circular shells (4) are movably connected with control rotary tables (6), the sides, away from the sampling grab bucket (1), of the control rotary tables (6) penetrate through the circular shells (4) and extend to the outer sides of the inner cavities of the circular shells (4), and the inner cavities of the circular shells (4) are provided with positioning devices (7).

2. A sediment sampling device as claimed in claim 1, wherein: The positioning device (7) comprises four positioning plate shells (701), the sides, away from the control rotary tables (6), of the positioning plate shells (701) penetrate through the circular shells (4) and extend to the outer sides of the inner cavities of the circular shells (4), the inner cavities of the circular shells (4) are provided with four positioning plates (702) used in cooperation with the positioning plate shells (701), the surfaces of the positioning plates (702) are movably connected with the inner cavities of the positioning plate shells (701), and the surfaces of the positioning plate shells (701) are fixedly connected with springs (703).

3. A sediment sampling device as claimed in claim 2, wherein: The surfaces of the positioning plate shells (701) are fixedly connected with circular rods (8), the inner cavities of the circular shells (4) are movably connected with four circular rod extrusion frames (9) used in cooperation with the circular rods (8) through rotating shafts, and the inner cavities of the circular rod extrusion frames (9) are movably connected with the surfaces of the circular rods (8).

4. A sediment sampling device as claimed in claim 3, wherein: The surface of the control rotary table (6) is fixedly connected with a rotary rod disc (10) used in cooperation with the circular rod extrusion frame (9), and the surface of the rotary rod disc (10) is in contact with the surface of the circular rod extrusion frame (9).

5. A sediment sampling device as claimed in claim 4, wherein: The bottom of the rotary rod disc (10) is fixedly connected with a limiting rotary block (11), the inner cavity of the circular shell (4) is fixedly connected with a limiting rotary shell (12) used in cooperation with the limiting rotary block (11), the surface of the limiting rotary block (11) is movably connected with the inner cavity of the limiting rotary shell (12), and the surfaces of the positioning plate (702) and the spring (703) are fixedly connected with the surface of the limiting rotary shell (12).

6. A sediment sampling device as claimed in claim 1, wherein: The surface of the control rotary table (6) is fixedly connected with a sealing chuck (13), the surface of the sealing chuck (13) is in close contact with the surface of the fixed shell, and the sealing chuck (13) is made of rubber.

7. A sediment sampling device as claimed in claim 2, wherein: The inner cavities of the positioning circular shells (3) are provided with four plate shell grooves (14) used in cooperation with the positioning plate shells (701), and the surfaces of the positioning plate shells (701) are in contact with the inner cavities of the plate shell grooves (14).

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