River sediment columnar sampling device

Abstract

The utility model discloses a columnar sampling device for river sediment, which comprises a support, a sampling mechanism and an accommodating mechanism, the sampling mechanism and the accommodating mechanism are both mounted on the support, and the sampling mechanism is arranged on one side of the accommodating mechanism; the sampling mechanism comprises a first driving unit, a sampling unit and a conveying unit; the output end of the first driving unit is in driving connection with the sampling unit; the conveying unit is arranged on the side, facing the containing mechanism, of the sampling unit. The sampling unit comprises a fixed pipe and a movable pipe, the fixed pipe is mounted on the bracket, and the movable pipe is nested in the fixed pipe; the output end of the first driving unit is in driving connection with the movable pipe; the conveying unit is arranged at the output end of the movable pipe. When the columnar sampling device for the river bottom mud is arranged at a preset sampling site, the bracket is erected on the surface of the bottom mud, and the first driving unit drives the movable pipe to descend relative to the fixed pipe, so that the bottom end of the movable pipe is promoted to enter the bottom mud for sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of bottom mud sampling, in particular to a river bottom mud columnar sampling device. Background Art

[0002] A sediment sampling device is a device used to collect sediment samples from a body of water. This device is usually designed to be able to sample at the bottom of a body of water to collect sediment samples for analysis and testing. The design of a sediment sampling device may vary depending on the application scenario, but it usually includes the following main components: Sampler head: Usually a round or square component that is used to contact the sediment and collect samples. The design of the sampler head allows it to be easily inserted into the sediment and collect samples. Sampler body: The component that connects the sampler head and the sampler handle. The sampler body usually has a certain length to ensure that the sampler head can reach the required depth. Handle: The component used to manipulate and operate the sediment sampling device. The handle usually has a comfortable grip design so that the user can easily operate the sampling device. Sampler handle end: Connected to the end of the sampler body, it usually has a fixing device to fix the sampler head and prevent the sample from being lost during sampling. Sediment sampling devices can be used in various environments, such as lakes, rivers, reservoirs, oceans and other waters, as well as sedimentation tanks in sewage treatment plants. By collecting sediment samples, scientists and environmental monitors can conduct chemical, physical and biological analyses of the sediment to assess the degree of pollution, nutrient content, biodiversity and other information in the sediment of the water body.

[0003] However, due to structural limitations, the sampling end of the existing sediment sampling device also serves as a sample storage container after completing the sediment sampling. Each time the sampling device completes a sampling, the sample needs to be unloaded from the sampling end and stored separately, resulting in increased manual operations for sampling and lower sampling efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a river sediment columnar sampling device to address the technical problem of low sampling efficiency of existing sediment sampling devices.

[0005] A river bottom mud columnar sampling device comprises a bracket, a sampling mechanism and a receiving mechanism, wherein the sampling mechanism and the receiving mechanism are both installed on the bracket, wherein the sampling mechanism extends toward the top side of the bracket to a preset height, and the sampling mechanism is arranged on one side of the receiving mechanism.

[0006] The sampling mechanism is arranged as a columnar structure, and the sampling mechanism comprises a first driving unit, a sampling unit and a conveying unit, wherein the sampling unit is mounted on a bracket; the first driving unit is arranged on one side of the sampling unit, and the output end of the first driving unit drives and connects the sampling unit; the conveying unit is arranged on the side of the sampling unit facing the receiving mechanism; wherein the sampling unit comprises a fixed tube and a movable tube, the fixed tube is mounted on the bracket, the movable tube is nested in the fixed tube, and the outer surface of the side wall of the movable tube is slidably connected to the inner surface of the side wall of the fixed tube; the output end of the first driving unit drives and connects the movable tube, so that the first driving unit can drive the movable tube to reciprocate along the length extension direction of the fixed tube; the conveying unit is arranged at the output end of the movable tube, and the output end of the conveying unit is arranged toward the receiving mechanism.

[0007] In one embodiment, the movable tube is provided with a sampling portion, the sampling portion is provided at the bottom end of the movable tube, and a sampling hole is provided on a side wall of the sampling portion.

[0008] In one embodiment, the sampling portion is configured as a conical structure, with a tip thereof extending toward a bottom side of the sampling portion.

[0009] In one embodiment, the first driving unit is configured as an electric push rod, which is connected to a side surface of the fixed tube, and an output end of the electric push rod is connected to a top end of the movable tube.

[0010] In one embodiment, the above-mentioned conveying unit includes a connecting part and a guiding part, the connecting part is arranged at one end of the conveying unit, and the guiding part is arranged at the other end of the conveying unit; the end of the connecting part facing away from the guiding part is connected to the bottom end of the fixed tube; and the guiding part is embedded in the movable tube.

[0011] In one of the embodiments, the movable tube is provided with an avoidance groove, which is arranged on the side wall of the movable tube, and the avoidance groove extends a preset distance along the length direction of the movable tube; the guide portion is embedded in the interior of the movable tube through the avoidance groove, the guide surface of the guide portion is arranged toward the bottom side of the movable tube, and one end of the guide surface is arranged toward the receiving mechanism.

[0012] In one embodiment, the receiving mechanism includes a receiving groove, which is disposed on the output side of the guide portion.

[0013] In one of the embodiments, the receiving groove is provided with a feeding portion, and the feeding portion is arranged on a side of the receiving groove facing the guiding portion.

[0014] In one of the embodiments, the feed portion is provided with a matching groove, and the movable tube is fitted into the matching groove, so that the output side of the guide portion penetrates into the feed portion.

[0015] In one of the embodiments, the receiving mechanism further includes a stirring unit, which is disposed on one side of the feeding portion in the receiving tank, and the stirring unit is rotatably connected to the inner wall of the receiving tank.

[0016] In one embodiment, the receiving mechanism is further provided with a second driving unit, which is arranged at the other side of the receiving groove relative to the stirring unit, and the output end of the second driving unit is driven to connect to the stirring unit.

[0017] In one embodiment, the second driving unit is configured as two driving cylinders, which drive two racks through a movable plate to drive the two ends of the stirring unit respectively. Gears are provided at the two ends of the stirring unit corresponding to the racks, thereby realizing the reciprocating rotation of the stirring unit.

[0018] In one embodiment, the above-mentioned bracket includes a base and a support column, and the receiving mechanism is installed on the base; one end of the support column is connected to the base, and the other end of the support column extends toward the top side of the base to a preset height; the sampling mechanism is installed on the side surface of the support column.

[0019] In one embodiment, the outer surface of the side wall of the fixing tube is installed and connected to the side surface of the supporting column.

[0020] The river bottom mud columnar sampling device disclosed by the utility model sets the sampling mechanism as a columnar structure. The sampling mechanism includes a first driving unit, a sampling unit and a conveying unit. The sampling unit includes a fixed tube and a movable tube. The fixed tube is installed on a bracket, and the movable tube is nested in the fixed tube. Moreover, the outer surface of the side wall of the movable tube is slidably connected to the inner surface of the side wall of the fixed tube. The output end of the first driving unit drives the movable tube to be connected, so that the first driving unit can drive the movable tube to reciprocate along the length extension direction of the fixed tube. The conveying unit is arranged at the output end of the movable tube, and the output end of the conveying unit is arranged toward the receiving mechanism. When the river sediment columnar sampling device of the utility model is set at a preset sampling position, the bracket is erected on the sediment surface, and the first driving unit drives the movable tube to descend relative to the fixed tube, thereby prompting the bottom end of the movable tube to enter the interior of the sediment for sampling; after the movable tube descends to a preset height, the sediment enters the bottom end of the movable tube, and the first driving unit drives the movable tube to rise. During this process, the sediment at the bottom end of the movable tube is transported to the receiving mechanism for receiving through the transporting unit, thereby completing the process of automatic sampling of river sediment and automatic storage of samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a river sediment columnar sampling device in one embodiment;

[0022] Figure 2 A schematic diagram of the structure of a river sediment columnar sampling device in one embodiment;

[0023] Figure 3 A schematic diagram of the structure of a river sediment columnar sampling device in one embodiment;

[0024] Figure 4 for Figure 3 A schematic cross-sectional structure diagram of the AA portion in the illustrated embodiment;

[0025] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the M portion in the illustrated embodiment. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] See also Figures 1 to 5The utility model discloses a river sediment columnar sampling device, which includes a bracket 1, a sampling mechanism 2 and a receiving mechanism 3, wherein the sampling mechanism 2 and the receiving mechanism 3 are both installed on the bracket 1, wherein the sampling mechanism 2 extends toward the top side of the bracket 1 by a preset height, and the sampling mechanism 2 is arranged on one side of the receiving mechanism 3. In the present embodiment, the sampling mechanism 2 is configured as a columnar structure. Specifically, the sampling mechanism 2 includes a first driving unit 21, a sampling unit 22 and a conveying unit 23. The sampling unit 22 is mounted on the bracket 1. The first driving unit 21 is disposed on one side of the sampling unit 22, and the output end of the first driving unit 21 is driven to connect the sampling unit 22. The conveying unit 23 is disposed on the side of the sampling unit 22 facing the receiving mechanism 3. The sampling unit 22 includes a fixed tube 221 and a movable tube 222. The fixed tube 221 is mounted on the bracket 1, and the movable tube 222 is nested in the fixed tube 221. Moreover, the outer surface of the side wall of the movable tube 222 is slidably connected to the inner surface of the side wall of the fixed tube 221. The output end of the first driving unit is driven to connect the movable tube 222, so that the first driving unit 21 can drive the movable tube 222 to reciprocate along the length extension direction of the fixed tube 221. The conveying unit 23 is disposed at the output end of the movable tube 222, and the output end of the conveying unit 23 is disposed toward the receiving mechanism 3. In practical application, when the river sediment columnar sampling device of the utility model is set at a preset sampling site, the bracket 1 is set on the sediment surface, and the first driving unit 21 drives the movable tube 222 to descend relative to the fixed tube 221, so as to cause the bottom end of the movable tube 222 to enter the sediment for sampling; after the movable tube 222 descends to a preset height, the sediment enters the bottom end of the movable tube 222, and the first driving unit 21 drives the movable tube 222 to rise. In this process, the sediment at the bottom end of the movable tube 222 is transported to the receiving mechanism 3 for storage through the conveying unit 23, thereby completing the process of automatic sampling of river sediment and automatic storage of samples. In this embodiment, the first driving unit 21 is set as an electric push rod, which is connected to the side surface of the fixed tube 221, and the output end of the electric push rod is connected to the top of the movable tube 222, so that the electric push rod can drive the movable tube 222 to move up and down relative to the fixed tube 221.

[0033] See also Figures 1 to 5 Further, the movable tube 222 is provided with a sampling portion 2221, which is provided at the bottom end of the movable tube 222, and a sampling hole c is provided on the side wall of the sampling portion 2221. When the movable tube 222 descends, the sampling portion 2221 sinks into the bottom mud, and the bottom mud enters the sampling portion 2221 through the sampling hole c, and then fills the inner cavity of the movable tube 222. In this embodiment, the sampling portion 2221 is provided as a conical structure, and its tip extends toward the bottom side of the sampling portion 2221, so as to facilitate the sampling portion 2221 to bounce into the bottom mud.

[0034] See also Figures 1 to 5 Further, the conveying unit 23 includes a connecting portion 231 and a guiding portion 232, wherein the connecting portion 231 is arranged at one end of the conveying unit 23, and the guiding portion 232 is arranged at the other end of the conveying unit 23; one end of the connecting portion 231 facing away from the guiding portion 232 is connected to the bottom end of the fixed tube 221; and the guiding portion 232 is embedded in the movable tube 222. Specifically, the movable tube 222 is provided with an avoidance groove a, which is arranged on the side wall of the movable tube 222, and the avoidance groove a extends a preset distance along the length direction of the movable tube 222; the guiding portion 232 is embedded in the movable tube 222 through the avoidance groove a, and the guiding surface of the guiding portion 232 is arranged toward the bottom side of the movable tube 222, and one end of the guiding surface is arranged toward the receiving mechanism 3. In actual application, when the first driving unit 21 drives the movable tube 222 to rise relative to the fixed tube 221, the bottom mud accommodated at the bottom of the movable tube 222 rises to the conveying unit 23. At this time, the guide part 232 can guide the bottom mud inside the movable tube 222 to the receiving mechanism 3, thereby completing the bottom mud transportation between the movable tube 222 and the receiving mechanism 3.

[0035] See also Figures 1 to 5 Furthermore, the receiving mechanism 3 includes a receiving groove 31, which is arranged on the output side of the guide part 232, so that the bottom mud outputted by the guide part 232 can fall into the receiving groove 31. Specifically, the receiving groove 31 is provided with a feeding part 311, which is arranged on the side of the receiving groove 31 facing the guide part 232; and the feeding part 311 is provided with a matching groove b, and the movable tube 222 is matched and embedded in the matching groove b, so that the output side of the guide part 232 is deeply inserted into the feeding part 311, thereby improving the conveying efficiency of the guide part 232 to the receiving groove 31. In this embodiment, the feeding part 311 is arranged as an inclined feeding port with a preset inclination angle, so as to improve the receiving effectiveness of the receiving groove 31 for the bottom mud and prevent the bottom mud outputted by the guide part 232 from falling outside the receiving groove 31. In one embodiment, the receiving groove 31 can be set as a relatively closed storage space to avoid sample contamination caused by excessive contact between the sediment sample and the outside world; in another embodiment, a sterile sampling bottle with good sealing performance can be set inside the receiving groove 31, and the sediment sample transported to the receiving groove 31 can be filled into the sterile sampling bottle for sealed storage, thereby further avoiding sample contamination while ensuring the sampling and sampling efficiency.

[0036] See also Figures 1 to 5Furthermore, the receiving mechanism 3 also includes a stirring unit 32, which is arranged on one side of the feeding part 311 in the receiving groove 31, and the stirring unit 32 is rotatably connected to the inner wall of the receiving groove 31, and the stirring unit 32 can stir and disperse the bottom mud falling into the receiving groove 31 to avoid the bottom mud from being locally accumulated in the receiving groove 31 and affecting the receiving. Specifically, the receiving mechanism 3 is also provided with a second driving unit 33, which is arranged on the other side of the receiving groove 31 relative to the stirring unit 32, and the output end of the second driving unit 33 is driven to connect the stirring unit 32 to drive the stirring unit 32 to rotate. In this embodiment, the second driving unit 33 is set as two driving cylinders, and the two driving cylinders drive two racks 35 through a moving plate 34 to drive the two ends of the stirring unit 32 respectively, and gears 36 are provided at the two ends of the stirring unit 32 corresponding to the racks 35, so as to realize the reciprocating rotation of the stirring unit 32.

[0037] See also Figures 1 to 5 Further, the bracket 1 includes a base 11 and a support column 12, the receiving mechanism 3 is installed on the base 11; one end of the support column 12 is connected to the base 11, and the other end of the support column 12 extends toward the top side of the base 11 by a preset height; the sampling mechanism 2 is installed on the side surface of the support column 12. Specifically, the outer surface of the side wall of the fixed tube 221 is installed and connected to the side surface of the support column 12, so that the fixed tube 221 can be set on one side of the feeding part 311 of the receiving mechanism 3.

[0038] To sum up, the river sediment columnar sampling device disclosed by the utility model sets the sampling mechanism as a columnar structure. Specifically, the sampling mechanism includes a first driving unit, a sampling unit and a conveying unit. The sampling unit includes a fixed tube and a movable tube. The fixed tube is installed on the bracket, and the movable tube is nested in the fixed tube. Moreover, the outer surface of the side wall of the movable tube is slidably connected to the inner surface of the side wall of the fixed tube; the output end of the first driving unit drives the movable tube to be connected, so that the first driving unit can drive the movable tube to reciprocate along the length extension direction of the fixed tube; the conveying unit is arranged at the output end of the movable tube, and the output end of the conveying unit is arranged toward the receiving mechanism. When the river sediment columnar sampling device of the utility model is set at a preset sampling position, the bracket is erected on the sediment surface, and the first driving unit drives the movable tube to descend relative to the fixed tube, thereby prompting the bottom end of the movable tube to enter the interior of the sediment for sampling; after the movable tube descends to a preset height, the sediment enters the bottom end of the movable tube, and the first driving unit drives the movable tube to rise. During this process, the sediment at the bottom end of the movable tube is transported to the receiving mechanism for receiving through the transporting unit, thereby completing the process of automatic sampling of river sediment and automatic storage of samples.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A river sediment columnar sampling device, characterized in that: include: A support, a sampling mechanism and a receiving mechanism, wherein the sampling mechanism and the receiving mechanism are both installed on the support, wherein the sampling mechanism extends toward the top side of the support by a preset height, and the sampling mechanism is arranged on one side of the receiving mechanism; The sampling mechanism is configured as a columnar structure, and includes a first driving unit, a sampling unit, and a conveying unit, wherein the sampling unit is mounted on the bracket; the first driving unit is configured at one side of the sampling unit, and an output end of the first driving unit is connected to the sampling unit; the conveying unit is configured at one side of the sampling unit facing the receiving mechanism; The sampling unit includes a fixed tube and a movable tube, wherein the fixed tube is installed on the bracket, and the movable tube is nested in the fixed tube; the output end of the first driving unit is driven to connect the movable tube; and the conveying unit is arranged at the output end of the movable tube.

2. The river sediment columnar sampling device according to claim 1, characterized in that: The conveying unit includes a connecting portion and a guiding portion, wherein the connecting portion is arranged at one end of the conveying unit, and the guiding portion is arranged at the other end of the conveying unit; the end of the connecting portion facing away from the guiding portion is connected to the bottom end of the fixed tube; and the guiding portion is embedded in the movable tube.

3. The river sediment columnar sampling device according to claim 2, characterized in that: The movable tube is provided with an avoidance groove, which is arranged on the side wall of the movable tube, and the avoidance groove extends a preset distance along the length direction of the movable tube; the guide part is embedded in the interior of the movable tube through the avoidance groove, the guide surface of the guide part is arranged toward the bottom side of the movable tube, and one end of the guide surface is arranged toward the accommodating mechanism.

4. The river sediment columnar sampling device according to claim 3, characterized in that: The receiving mechanism comprises a receiving groove, and the receiving groove is arranged on the output side of the guide part.

5. The river sediment columnar sampling device according to claim 4, characterized in that: The receiving groove is provided with a feeding portion, and the feeding portion is arranged on a side of the receiving groove facing the guiding portion.

6. The river sediment columnar sampling device according to claim 5, characterized in that: The feeding portion is provided with a matching groove, and the movable tube is fitted into the matching groove.

7. The river sediment columnar sampling device according to claim 6, characterized in that: The receiving mechanism further comprises a stirring unit, which is arranged at one side of the feeding portion in the receiving groove, and the stirring unit is rotatably connected to the inner wall of the receiving groove.

8. The river sediment columnar sampling device according to claim 7, characterized in that: The receiving mechanism is further provided with a second driving unit, which is arranged at the other side of the receiving groove relative to the stirring unit, and the output end of the second driving unit is drivingly connected to the stirring unit.

9. The river sediment columnar sampling device according to claim 8, characterized in that: The bracket includes a base and a support column, and the receiving mechanism is installed on the base; one end of the support column is connected to the base, and the other end of the support column extends toward the top side of the base to a preset height; the sampling mechanism is installed on the side surface of the support column.

10. The river sediment columnar sampling device according to claim 9, characterized in that: The outer surface of the side wall of the fixing pipe is installed and connected to the side surface of the supporting column.

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