A device for detecting sediment content

Abstract

The utility model discloses a kind of silt content detection devices, it is related to environmental detection technical field.The silt content detection device provided by the utility model, comprising: barrel and the sampling bottle, overflow component, transmission component, weighing assembly and control assembly set in barrel inside;Sampling bottle includes overflow pipe, overflow pipe includes inclined section, vertical section and the bending section of the connection inclined section and vertical section, and the bottom of vertical section is vertically downward and stretches into overflow component inside one end;One end of overflow component inlet is compatible with overflow pipe, and one end of overflow component outlet penetrates barrel;Transmission component can be along longitudinal telescopic;Weighing assembly is set in the lower of sampling bottle;Overflow component, transmission component and weighing assembly are electrically connected with control assembly respectively.The utility model realizes the switching of sampling bottle between sampling site and weighing site by integrating transmission component in barrel, realizes sampling and weighing integration design.

Description

Technical Field

[0001] This utility model relates to the field of environmental testing technology, and more specifically, to a device for detecting sediment content. Background Technology

[0002] Sediment content (sediment concentration) is a key fundamental indicator for hydrology, ecology, engineering, flood control, and water resources management, directly affecting safety, ecology, project lifespan, and water quality. Specifically, sediment concentration can assess flood discharge capacity, mitigate flood risks, ensure the safety and operation and maintenance of water conservancy projects, characterize the water environment and aquatic ecology, monitor water diversion thresholds for agricultural irrigation and domestic and industrial water use, and evaluate the effectiveness of soil and water conservation and watershed ecological management.

[0003] In existing technologies, the weighing method is used to measure sediment content. CN107290177 discloses a sampling bottle and a sediment content detection device, which obtains water samples through the sampling bottle and places them on a weighing device for weighing and reading. This device and measurement method have at least the following technical problems: 1) The operation process is cumbersome, time-consuming, and has extremely low timeliness; 2) The water sample transfer and settling process will change the original sediment state; 3) Moisture adhering to the outer wall of the sampling bottle affects the measurement results. Utility Model Content

[0004] In view of this, the present invention provides a sediment content detection device that can integrate water sample collection and weighing.

[0005] This utility model provides a sediment content detection device, including: a cylinder and a sampling bottle, an overflow component, a transmission component, a weighing component and a control component disposed in the cylinder; The sampling bottle includes an overflow tube, which includes an inclined section, a vertical section, and a bent section connecting the inclined section and the vertical section. One end of the inclined section is connected to the side wall of the inlet section of the sampling bottle, and the other end is inclined upwards. One end of the bent section is connected to the end of the inclined section away from the sampling bottle, and the other end is connected to the top end of the vertical section. The bottom end of the vertical section extends vertically downwards into the overflow assembly. The overflow assembly is located on one side of the sampling bottle, with one end of the overflow assembly inlet adapted to the overflow tube, and one end of the overflow assembly outlet penetrating the cylinder. The transmission assembly is located below the sampling bottle. The transmission assembly is capable of extending and retracting longitudinally. When the transmission assembly is at its highest point in the longitudinal direction, the sampling bottle is conveyed to the sampling position; when the transmission assembly is at its lowest point in the longitudinal direction, the sampling bottle is conveyed to the weighing position. The weighing component is located below the sampling bottle. When the transmission component is at its lowest point in the longitudinal direction, the sampling bottle is separated from the transmission component and placed on the weighing component. The control component is located at the bottom of the cylinder, and the overflow component, the transmission component, and the weighing component are electrically connected to the control component.

[0006] Compared with the prior art, the sediment content detection device provided by this utility model achieves at least the following beneficial effects: In the embodiments provided by this utility model, the switching between the sampling bottle and the weighing position is realized by integrating a transmission component inside the cylinder, achieving an integrated design of sampling and weighing. The overflow component is designed to maintain a constant volume, ensuring uniform water sample volume. Simultaneously, the wet and dry separation arrangement of the water-contacting components and electrical control components in this embodiment not only prevents external debris from contaminating the water sample but also enhances the waterproof protection capability of the electrical system. The simplified mechanical structure and low failure rate allow for long-term application in field sediment detection in rivers, slope runoff, etc. Compared to existing detection equipment where the sampling bottle and weighing device are separate and require manual sample transport, this embodiment eliminates the manual transport step of the sampling bottle, improving the convenience of detection. The built-in sampling bottle prevents moisture from adhering to the outer wall of the sampling bottle during sampling, eliminating the need for wiping the outer wall, saving operational steps, and eliminating detection errors caused by moisture adhering to the outer wall of the sampling bottle. It also avoids measurement errors caused by mud and water leakage and sediment spillage during transport.

[0007] Of course, any product implementing this utility model does not necessarily need to achieve all the technical effects described above at the same time.

[0008] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0010] Figure 1 A schematic diagram of an overall sediment content detection device provided by this utility model; Figure 2 A cross-sectional structural diagram of a sediment content detection device provided by this utility model; Figure 3 A schematic diagram of the sampling bottle provided by this utility model; Figure 4 A partial structural schematic diagram of the sampling bottle provided by this utility model; Figure 5 A schematic diagram of the structure of the cylinder provided by this utility model; Figure 6 A schematic diagram of the upper support ring provided by this utility model; Figure 7 A schematic diagram of the structure of the lower support ring provided by this utility model; Figure 8 A schematic diagram of the top cover provided by this utility model; Figure 9 Another structural schematic diagram of the top cover provided by this utility model; Figure 10 A schematic diagram of the structure of the sealing plate provided by this utility model; Figure 11 Another structural schematic diagram of the sampling bottle provided by this utility model; Figure 12 A schematic diagram of the overflow component provided by this utility model; Figure 13 A schematic diagram of the sealing structure provided by this utility model; Figure 14 A schematic diagram of the transmission assembly provided by this utility model; Figure 15 A schematic diagram of the structure of the weighing component provided by this utility model; Figure 16 A schematic diagram illustrating the fitting method between the weighing component and the sampling bottle provided by this utility model; Figure 17 A schematic diagram of the circuit structure of a sediment content detection device provided by this utility model. Detailed Implementation

[0011] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0012] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0013] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0014] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0016] This utility model embodiment provides a sediment content detection device 100, referring to... Figures 1 to 2 As shown, it includes: a cylinder 10 and a sampling bottle 20, an overflow assembly 30, a transmission assembly 40, a weighing assembly 50 and a control assembly 60 disposed inside the cylinder; The sampling bottle 20 includes an overflow pipe 21, which includes an inclined section 211, a vertical section 212, and a bent section 213 connecting the inclined section 211 and the vertical section 212. One end of the inclined section 211 is connected to the side wall of the inlet section 22 of the sampling bottle 20, and the other end is inclined upward. One end of the bent section 213 is connected to the end of the inclined section 211 away from the sampling bottle 20, and the other end is connected to the top end of the vertical section 212. The bottom end of the vertical section 212 extends vertically downward into the overflow assembly 30. The overflow assembly 30 is located on one side of the sampling bottle 20. One end of the inlet of the overflow assembly 30 is adapted to the overflow pipe 21, and one end of the outlet of the overflow assembly 30 penetrates the cylinder 10. The transmission assembly 40 is located below the sampling bottle 20, and the transmission assembly 40 can extend and retract longitudinally, as shown in the reference. Figure 2 As shown, the longitudinal direction is the xy direction. When the transmission component 40 is at its highest point in the longitudinal direction, i.e., the highest point in the y direction, the sampling bottle 20 is conveyed to the sampling position; when the transmission component 40 is at its lowest point in the longitudinal direction, i.e., the lowest point in the x direction, the sampling bottle 20 is conveyed to the weighing position. The weighing component 50 is located below the sampling bottle 20. When the transmission component 40 is at its lowest point in the longitudinal direction, the sampling bottle 20 is separated from the transmission component 40 and placed on the weighing component 50. The control component 60 is located at the bottom of the cylinder 10, and the overflow component 30, the transmission component 40 and the weighing component 50 are electrically connected to the control component 60.

[0017] Understandably, the cylinder 10 is made of waterproof material. The sampling bottle 20, overflow assembly 30, transmission assembly 40, weighing assembly 50, and control assembly 60 are all housed within the cylinder 10, integrating sampling and weighing into a single device. Specifically, the sampling bottle 20 includes an overflow pipe 21, which is used to drain excess water sample during sampling. Therefore, one end of the overflow pipe 21 is connected to the inlet section of the sampling bottle 20, and the other end extends into the overflow assembly 30. The overflow assembly 30 is located on one side of the sampling bottle 20 and is used to overflow excess water sample. The overflow pipe 21 extends into the inlet of the overflow assembly 30, draining excess water sample into the overflow assembly 30. Simultaneously, the outlet of the overflow assembly 30 penetrates the cylinder 10, allowing the water sample in the overflow assembly 30 to be discharged.

[0018] The sampling bottle 20 moves longitudinally within the cylinder 10 via a transmission assembly 40. Specifically, the transmission assembly 40 is located below the sampling bottle 20 and can move longitudinally, thereby propelling the sampling bottle 20 longitudinally. When the transmission assembly 40 is at its highest point, the sampling bottle 20 is lifted to its highest position and connected to the outside of the cylinder 10. At this time, the sampling bottle 20 is in the sampling position, ready for water sampling. When the transmission assembly 40 is at its lowest point, the sampling bottle 20 descends to its lowest position. A weighing assembly 50 is located below the sampling bottle 20. When the sampling bottle 20 descends to its lowest point, it rests on the weighing assembly 50. At this time, the transmission assembly 40 continues to move downwards a specified distance, completely separating from the sampling bottle 20. At this time, the sampling bottle 20 is in the weighing position. When the sampling bottle 20 is in the weighing position, it may weigh either the empty bottle or the bottle containing the water sample. The difference between the two is the weight of the water sample.

[0019] In addition, the device also includes a control component 60. The overflow component 30, the transmission component 40, and the weighing component 50 are all electrically connected to the control component 60. Specifically, the control component 60 is electrically connected to the overflow component 30 to control the opening and closing of the overflow component 30; the control component 60 is electrically connected to the transmission component 40 to control the longitudinal movement of the transmission component 40; and the control component 60 is electrically connected to the weighing component 50 to acquire the weighing data of the weighing component 50.

[0020] In the embodiments provided by this utility model, the device first transports the sampling bottle 20 to the sampling position via the transmission component 40. After sealing the overflow component 30, the entire device is placed in a body of water such as a river or reservoir for water sampling. After sampling, the device is suspended or placed on a horizontal surface. The overflow component 30 is opened to allow overflow drainage. Then, the transmission component 40 transports the sampling bottle 20 to the weighing position, where the weighing component 50 acquires the weighing data. Since the weight of the empty sampling bottle 20 is known, the weight of the water sample can be obtained by the difference between the weighing data and the weight of the empty bottle. Based on a preset model, the sediment content can be determined.

[0021] In one embodiment, the overflow tube 21 is used to bring the sampling bottle 20 to volume. The sampling bottle 20 is gradually filled to the overflow tube 21, and excess water sample flows out from the overflow tube 21. (See reference...) Figure 3 and Figure 4 As shown, in this embodiment, the overflow pipe 21 includes an upwardly inclined section 211, a vertical section 212, and a bent section 213 connecting the inclined section 211 and the vertical section 212. The inclined section 211 is connected to the inlet section 22 of the sampling bottle 20, and the vertical section 212 extends into the overflow assembly 30.

[0022] In existing technologies, overflow pipes are mostly inclined downwards. In the application scenario of sediment content detection, the traditional downward overflow method is affected by factors such as the water flow velocity and sediment particle size during sampling, potentially leading to a measurement of sediment content that is either too high or too low compared to the actual result. For example, when sediment particles are large, they quickly fall to the bottom of the bottle during sampling, and the overflow from the overflow pipe is mostly pure liquid, resulting in a higher measured sediment content than the actual value. Conversely, when sediment particles are small, their settling velocity is extremely slow, causing them to remain suspended on the surface of the water sample and overflow, resulting in a lower measured sediment content than the actual value. Furthermore, when the inflow rate is too high and the water impacts the bottom of the bottle, the sediment deposited at the bottom is stirred up and agitated by the high-speed water flow, causing the surface sample, containing a large amount of suspended sediment, to overflow first, leading to a lower measured sediment content than the actual value. Therefore, the downward-inclined overflow pipe structure in existing technologies places high demands on the sampling environment and sampling methods, and the detection results are highly uncertain, leading to increased errors.

[0023] In this embodiment, the overflow pipe 21 adopts an upwardly inclined structure, making it difficult for sediment to overflow under the influence of gravity. Although this structure may cause the sampled sediment content to be higher than the actual value, compared with the downwardly inclined overflow pipe in the prior art, which may result in either an overestimation or underestimation of the detection result, the error direction of this structure is definite. It can be corrected to reduce the error and make the detection result more accurate.

[0024] Specifically, continue to refer to Figure 4 As shown, the liquid level in the sampling bottle 20 reaches the lower edge of the inclined section 211 of the overflow pipe 21, away from the end of the sampling bottle 20. Based on the liquid level, the inclined section 211 of the overflow pipe 21 can be divided into two parts, A and B. Part A is included within the volume of the water sample. The water sample in part B will overflow, but the sediment particles in part B will settle prematurely under gravity and will not overflow. Therefore, the error in the sediment content detection is the sediment content contained in part B. The volume of part B is known, and the density of the mixed water sample is also known, so the weight of part B can be determined. Furthermore, the densities of sediment and water are known, so the weight of sediment in the mixed water sample in part B can be determined. The sediment content in the volumetric water sample can be corrected using the weight of sediment in the mixed water sample in part B.

[0025] Specifically,

[0026] in, This is used to represent the volume of clear water in a mixed water sample; This is used to represent the volume of sediment in a mixed water sample; , used to represent the volume of a mixed water sample; This is used to express the density of pure water, which is 1000 kg / m³. 3 ; , used to indicate the density of sediment; , used to indicate the weight of a mixed water sample.

[0027] Therefore, the volume of sediment in the mixed water sample is:

[0028] The weight of sediment in the mixed water sample is:

[0029] Volumetric sediment content (in kg / m³) in mixed water samples 3 )for:

[0030] The mass sediment content of the mixed water sample is:

[0031] It should be noted that the above calculation method does not consider overflow error and is only suitable for rough and simple testing. The calculation results can be corrected; specifically, it is necessary to determine the weight of sediment in the mixed water sample of part B. Refer to the above and the calculation method:

[0032] in, This is used to represent the volume of clear water in the mixed water sample of part B; This is used to represent the volume of sediment in the mixed water sample of part B; , used to represent the volume of the mixed water sample in part B; This is used to express the density of pure water, which is 1000 kg / m³. , used to indicate the density of sediment; This is used to represent the density of a mixed water sample and can be determined using a densitometer; , used to indicate the weight of the mixed water sample in part B.

[0033] Therefore, the volume of sediment in the mixed water sample of part B is:

[0034] The weight of sediment in the mixed water sample is:

[0035] The weight M of sediment in the mixed water sample s It includes the error part M Bs Therefore, the weight of sediment in the corrected mixed water sample.

[0036] After correction, the volumetric sediment content (in kg / m³) in the mixed water sample. 3 )for:

[0037] After correction, the mass sediment content in the mixed water sample is:

[0038] In addition, it should be noted that, Used to express the density of sediment. The density of sediment varies in different regions and different bodies of water. Therefore, The value can be determined through a database. The data source for the database is announcements from national / local water resources or natural resources departments. Furthermore, the database data is online and updated in real time. Each time sediment content is tested, the selected... All data is the latest from the region to ensure the accuracy of the testing.

[0039] In one optional embodiment provided by this utility model, refer to Figure 2 and Figure 5 As shown, the cylinder 10 includes a top cover 11, an inner cavity 12, an electronic cavity 13, and a bottom cover 14 that are connected longitudinally from top to bottom.

[0040] Understandably, the cylinder 10 is cylindrical and consists of a top cover 11, an inner cavity 12, an electronic cavity 13, and a bottom cover 14 from top to bottom.

[0041] The top cover 11 and the inner cavity 12 are connected by an upper support ring 15, which is disposed on the inner wall of the top cover 11 and the inner cavity 12. The inner cavity 12 and the electronic cavity 13 are connected by a lower support ring 16, which is disposed on the inner wall of the inner cavity 12 and the electronic cavity 13.

[0042] Reference Figure 6 and Figure 7As shown, both the upper support ring 15 and the lower support ring 16 are annular, and their outer walls have one or more protrusions. The top cover 11 can be engaged with the upper half of the protrusion on the outer wall of the upper support ring 15, while the top of the inner cavity 12 can be engaged with the lower half of the protrusion on the outer wall of the upper support ring 15. Similarly, the bottom of the inner cavity 12 can be engaged with the upper half of the protrusion on the outer wall of the lower support ring 16, and the electronic cavity 13 can be engaged with the lower half of the protrusion on the outer wall of the lower support ring 16. In this embodiment, the upper support ring 15 and the lower support ring 16 connect more than 10 components of the cylinder.

[0043] Reference Figure 2 and Figure 5 As shown, the sampling bottle 20, overflow assembly 30, transmission assembly 40, and weighing assembly 50 are housed within the inner cavity 12. These components, such as the sampling bottle 20 and transmission assembly 40, can be disassembled at any time for inspection, maintenance, or replacement. It should be noted that the connection points between the upper support ring 15 / lower support ring 16 and the top cover 11 / inner cavity 12 / electronic cavity 13 are also equipped with sealing rings to ensure the waterproof performance of the cylinder 10.

[0044] In addition, the inner wall of the lower support ring 16 is provided with a support base 17. The support base 17 is a platform for placing the overflow assembly 30, the transmission assembly 40, the weighing assembly 50, etc.

[0045] Continue to refer to Figure 5 As shown, the bottom cover 14 is located at the bottom of the electronic cavity 13 and is connected to the support base 17 via the support rod 18; The control component 60 is located inside the electronic cavity 13.

[0046] Understandably, the electronic cavity 13 is used to centrally house various components of the control assembly 60. A bottom cover 14 is provided at the bottom of the electronic cavity 13. Several support rods 18 are arranged around the inner wall of the electronic cavity 13, and the two ends of each support rod 18 are respectively connected to the bottom cover 14 and the support base 17 by bolts to fix the bottom cover 14. The sediment content detection device 100 is immersed entirely in water for sampling. Therefore, the electronic cavity 13, which houses the control assembly 60, has better waterproof performance, and the bottom cover 14 is fixed by several support rods 18, resulting in better stability and waterproofing of the device.

[0047] In this embodiment, the cylinder 10 is divided into two main components, upper and lower, by a support base 17 located within the cavity. The upper inner cavity 12 houses the sampling bottle 20, overflow assembly 30, transmission assembly 40, and weighing assembly 50, enabling water sample collection and weighing. The lower electronic cavity 13 houses the control assembly 60, which controls the overflow assembly 30 and transmission assembly 40, and acquires data from the weighing assembly 50. This integrated design simplifies operation compared to existing technologies, eliminates the need for transportation, improves the convenience of the sampling process, and reduces sampling errors.

[0048] In one optional embodiment provided by this utility model, refer to Figures 8 to 10 As shown, the top cover 11 includes: a cover body 111, a sealing plate 112, and a water inlet funnel 113; The sealing plate 112 is disposed inside the cover 111 and is connected to the upper support ring 15 by a positioning pin; The cover 111 has several openings; the sealing plate 112 has a water inlet 1121, and a top sealing seat 1122 is provided around the water inlet; the top of the water inlet funnel 113 is connected to the top sealing seat 1122. When the sampling bottle 20 is in the sampling position, the bottom of the water inlet funnel 113 is inserted into the inlet section of the sampling bottle 20.

[0049] It is understood that the top cover 11 includes a cover body 111, a sealing plate 112, and a water inlet funnel 113. The cover body 111 is used for fixed connection and also for water inlet. Specifically, refer to... Figure 6 The cover 111 is connected to the outer wall of the upper support ring 15, which is used to connect the top cover 11 to the inner cavity 12. Meanwhile, referring to... Figure 8 As shown, the top of the cover 111 has several openings, and water samples flow in through the openings during sampling.

[0050] The top cover 11 also includes a sealing plate 112, which is disposed inside the cover body 111 and is engaged with the inner wall of the cover body 111. It is connected to the top cover 11 by a positioning pin and an upper support ring 15, increasing the stability of the top cover 11. A water inlet hole 1121 is provided on the sealing plate 112, and a top sealing seat 1122 is disposed within the water inlet hole 1121. The top of the water inlet funnel 113 is connected to the top sealing seat 1122. The sealing plate 112 is used for sampling and sealing: when the device is sampling, water sample flows in from the opening in the cover body 111, filling the space between the cover body 111 and the sealing plate 112. The sealing plate 112 ensures that the water sample flows into the water inlet funnel 113 through the water inlet hole 1121, but does not flow into the inner cavity 12. The top sealing seat 1122 seals the space between the water inlet funnel 113 and the water inlet hole 1121. The top of the inlet funnel 113 is connected to the top sealing seat 1122, while its bottom extends downwards from the top sealing seat 1122. This is because during sampling, the sampling bottle 20 is pushed to the sampling position by the transmission assembly 40. At this time, the bottom of the inlet funnel 113 is inserted into the inlet section of the sampling bottle 20, and the water sample flows into the sampling bottle 20. The inlet funnel 113 is made of rubber and has a certain degree of elasticity. Its bottom is inserted into the inlet section of the sampling bottle 20 to achieve the effect of a sealing ring, preventing liquid from leaking into the inner cavity 12.

[0051] In one optional embodiment provided by this utility model, reference continues to be made to... Figure 8 and Figure 9 As shown, the top cover 11 also includes a suspension hook 114, which is located at the geometric center of the top of the cover 111.

[0052] Understandably, the suspension hook 114 can be used to attach ropes, and it is mainly used for two purposes.

[0053] On the one hand, during operation, the sediment content detection device 100 can be placed in rivers or water bodies for sampling by attaching a rope to the suspension hook 114. Field operations involve many risks, especially during natural disasters such as flash floods. Sampling via a rope descent device avoids the risk of personnel needing to approach the edge of the water. It is also suitable for situations where bridges, dams, and other structures are far above the water surface. Furthermore, the average density of the device in this embodiment is greater than the density of water; therefore, the sediment content detection device 100 will naturally sink when placed in water. The position of the device in the water can be controlled by the rope, allowing for the acquisition of water samples at different heights within the same water body, thus improving sampling information.

[0054] On the other hand, this device measures sediment content using a weighing method, and the weighing component 50 needs to be placed on a level platform for accurate measurement. However, it is difficult to find a level platform in the field. In this case, a tripod can be adapted to the device, and the device can be hung on the tripod using the suspension hook 114 to make the sediment content detection device 100 level, thus ensuring the accuracy of the weighing measurement results.

[0055] In one optional embodiment provided by this utility model, refer to Figure 3 As shown, the sampling bottle 20 includes: an inlet section 22, a narrowing section 23, and a straight section 24; The orifice diameter of the inlet section 22 is adapted to the bottom of the inlet funnel 113; The narrowing section 23 is frustum-shaped, with the same diameter at its top as the inlet section 22 and the same diameter at its bottom as the straight section 24.

[0056] It is understood that the sampling bottle 20 includes a small-diameter inlet section 22, a narrow-diameter section 23, and a large-diameter straight section 24. The sidewall of the inlet section 22 is connected to the overflow pipe 21, and the orifice of the inlet section 22 is adapted to the bottom of the water inlet funnel 113, ensuring that the bottom of the water inlet funnel 113 can extend into the inlet section 22. The small orifice of the inlet section 22 allows for more precise liquid flow during sampling, reducing splashing. Furthermore, due to surface tension, the liquid surface is not perfectly horizontal. Therefore, the small orifice of the inlet section 22 reduces the surface area of ​​the liquid, mitigating the change in sampling volume caused by surface tension.

[0057] The narrowing section 23 connects the inlet section 22 and the straight section 24. It is truncated cone-shaped with inclined sidewalls, which helps to expel air bubbles from the water sample.

[0058] In one optional embodiment provided by this utility model, refer to Figure 11 As shown, the bottom of the sampling bottle 20 is provided with a positioning groove 25 and a positioning seat 26; The positioning groove 25 is provided on the lower surface of the straight section 24, including an annular groove 251 and a circular groove 252; The positioning seat 26 is connected to the geometric center of the lower surface of the straight section 24, and the bottom of the positioning seat 26 is provided with a positioning hole 261.

[0059] Understandably, the sampling bottle 20 needs to move between the sampling position and the weighing position, and also needs to be placed on the weighing assembly 50 for weighing. Therefore, it is necessary to ensure the stability of the sampling bottle 20 during the movement and weighing process. The bottom of the sampling bottle 20 is provided with a positioning groove 25 and a positioning seat 26 for positioning during movement and weighing, respectively.

[0060] Specifically, a positioning groove 25 is formed at the bottom of the sampling bottle 20, i.e., the lower surface of the straight cylindrical section 24. The positioning groove 25 includes an annular groove 251 and a circular groove 252, which are respectively adapted to the top of the transmission assembly 40, i.e., the top of the transmission assembly 40 is provided with an annular protrusion 431 and a circular protrusion 432. Among them, the annular groove 251 and the annular protrusion 431 ensure the stability of the sampling bottle 20 placed on the transmission assembly 40. The top of the circular protrusion 432 is a smooth hemispherical shape, which allows the sampling bottle 20 to slide into the circular groove 252 through the circular protrusion 432 to achieve positioning of the sampling bottle 20 when there is a slight deviation in the position between the sampling bottle 20 and the transmission assembly 40.

[0061] A positioning seat 26 is provided at the geometric center of the straight section 24. When the sampling bottle 20 is in the weighing position, its bottom is separated from the transmission assembly 40 and rests on the weighing assembly 50. Specifically, the positioning seat 26, which protrudes from the lower surface of the sampling bottle 20, rests on the weighing assembly 50. At the same time, the weighing assembly 50 includes a positioning post 52 that matches the positioning hole 261, ensuring the stability of the sampling bottle 20 on the weighing assembly 50.

[0062] In one optional embodiment provided by this utility model, refer to Figure 12 and Figure 13 As shown, the overflow assembly 30 includes: a drain chamber 31, a sealing structure 32 disposed at the inlet of the drain chamber 31, and a rubber plug 33 disposed at the outlet of the drain chamber 31. The drainage chamber 31 is L-shaped. The inlet of the drainage chamber 31 is located at the top and the opening points upward. The outlet of the drainage chamber 31 is located at the bottom and the opening points towards the inner cavity 12. The end of the drainage chamber 31 near the water outlet penetrates the inner cavity 12; The sealing structure 32 includes an airbag 321 and an air pump connected to the airbag 321 via an air tube 322; The airbag 321 is ring-shaped and is located at the inlet of the drainage chamber 31.

[0063] Understandably, the overflow assembly 30 is located on one side of the sampling bottle 20, and the overflow pipe 21 extends into the overflow assembly 30. Specifically, the overflow pipe 21 extends into the drain chamber 31 of the overflow assembly. Since the drain chamber 31 needs to discharge the overflowed water sample from the device, it is L-shaped, with the top being the inlet for the overflow pipe 21 to extend into; the bottom is the outlet, with the opening pointing towards and penetrating the inner cavity 12, and communicating with the outside of the sediment content detection device 100.

[0064] In addition, the inlet of the drainage chamber 31 is provided with a sealing structure 32, which consists of an airbag 321, an air pump (not shown in the figure), and an air pipe 322 connecting the airbag 321 and the air pump. The outlet of the drainage chamber 31 is provided with a rubber plug 33 to block the outlet of the overflow assembly 30.

[0065] It should be noted that the diameter of the overflow pipe 21 is smaller than the orifice of the drain chamber 31. Regardless of whether the sampling bottle 20 is located at the sampling position or the weighing position, the end of its overflow pipe 21 that extends into the overflow assembly 30 moves within the drain chamber 31 and does not extend out of the overflow assembly 30.

[0066] The specific usage method is as follows: Before sampling with the sediment content detection device 100, the overflow assembly is first sealed, that is, both the inlet and outlet of the drainage chamber 31 are sealed. At the inlet, the air pump inflates the air bag 321 through the air pipe 322, causing the air bag 321 to expand and tightly hug the overflow pipe 21, sealing the gap between the overflow pipe 21 and the drainage chamber 31; at the outlet, the rubber stopper 33 is used to seal the outlet. During sampling, the water sample flows from the inlet funnel 113 into the sampling bottle 20, and after reaching the position of the overflow pipe 21, it flows from the overflow pipe 21 into the drainage chamber 31. If the inlet of the drainage chamber 31 is not sealed, the water sample will overflow into the inner cavity 12 from the gap between the overflow pipe 21 and the drainage chamber 31. Therefore, by sealing the overflow assembly 30, the water sample first fills the straight section 24 and the narrowed section 23 of the sampling bottle 20, then overflows to fill the drainage chamber 31, and finally fills the inlet section 22 of the sampling bottle 20. After sampling, first open the rubber stopper 33 to allow water sample to flow out of the drainage chamber 31, overflow pipe 21, and the portion of the sampling bottle 20 inlet section 22 above the overflow pipe 21, reaching a fixed volume. Then release the sealing structure 32, i.e., the airbag 321, to release the overflow pipe 21. Afterward, a transfer operation can be performed, controlling the transmission component 40 to move the sampling bottle 20 downward to the weighing position for weighing.

[0067] The overflow assembly 30 provided in this embodiment, in conjunction with the sealing plate 112, ensures that during sampling, only the sampling bottle 20 is connected to the outside of the device, allowing water samples to flow in. This guarantees the sealing of other components. Simultaneously, the overflow assembly 30 also enables thorough sampling followed by volume adjustment, ensuring the homogeneity of the water sample and reducing detection errors.

[0068] In one optional embodiment provided by this utility model, refer to Figure 14 As shown, the transmission assembly 40 includes a power structure 41, a telescopic structure 42, and a tray 43; The bottoms of both the power structure 41 and the telescopic structure 42 are mounted on the support base 17, and the tops of both the power structure 41 and the telescopic structure 42 are connected to the tray 43. The power structure 41 is an electric push rod capable of longitudinal extension and retraction; The telescopic structure 42 includes a guide rail 421 and a bearing component 422 sleeved on the guide rail 421 and capable of moving longitudinally along the guide rail. The guide rail 421 is erected vertically and its bottom is connected to the support base 17; Bearing component 422 includes a bearing and a bearing housing; The bearing is sleeved on the guide rail 421, the bearing housing is sleeved on the bearing, and the bearing housing is connected to the tray 43.

[0069] Understandably, the transmission assembly 40 is used for longitudinally conveying the sampling bottle 20. The transmission assembly 40 includes a power structure 41, several telescopic structures 42, and a tray 43. The tray 43 directly contacts the sampling bottle 20 and supports it. The upper surface of the tray 43 is provided with annular protrusions 431 and circular protrusions 432, which are adapted to the annular grooves 251 and circular grooves 252 on the bottom of the sampling bottle 20 for positioning the sampling bottle 20.

[0070] The power structure 41 is an electric push rod, with its two ends connected to the support base 17 and the tray 43, respectively. As the electric push rod extends and retracts longitudinally, it drives the tray 43 to move longitudinally, thereby conveying the sampling bottle 20.

[0071] To ensure transmission stability, the transmission assembly 40 is also equipped with several telescopic structures 42. The two ends of each telescopic structure 42 are connected to the support base 17 and the tray 43, respectively. The telescopic structures 42 are evenly distributed around the circumference of the tray 43 to ensure uniform force distribution. Each telescopic structure 42 is equipped with a guide rail 421 and a bearing component 422. The bearing component 422 moves on the guide rail 421. The bearing component 422 includes a bearing and a bearing housing. The bearing housing is connected to the bottom of the tray 43, the bearing housing is fitted onto the bearing, and the bearing is fitted onto the guide rail 421. The bearing and the guide rail 421 can slide, thereby enabling the longitudinal movement of the bearing component 422 on the guide rail 421. It should be noted that when the transmission assembly 40 is at its lowest longitudinal point, the guide rail 421 will not extend beyond the bearing housing.

[0072] Therefore, when the transmission assembly 40 receives a lifting command, the electric push rod extends upward, the bearing component 422 moves upward on the guide rail 421, and the tray 43, under the action of the power structure 41 and the telescopic structure 42, is lifted upward until the sampling bottle 20 reaches the sampling position. When the transmission assembly 40 receives a lowering command, the electric push rod retracts downward, the bearing component 422 moves downward on the guide rail 421, and the tray 43, under the action of the power structure 41 and the telescopic structure 42, descends until the sampling bottle 20 falls onto the weighing assembly 50, and then continues to descend a specified distance, separating the sampling bottle 20 from the tray 43, at which point the sampling bottle 20 is located at the weighing position.

[0073] The transmission component 40 provided in this embodiment realizes the position change of the sampling bottle 20 from sampling to weighing within the device, avoiding the cumbersome operation of acquiring water samples from the sampling bottle and then transporting them to the weighing device, as well as the technical problem of detection deviation caused by possible changes in the state of the water sample during the transfer process, which is present in the prior art.

[0074] In one optional embodiment provided by this utility model, refer to Figure 15 and Figure 16 As shown, the weighing assembly 50 includes an electronic scale 51 and a positioning post 52; The electronic scale 51 is mounted on the support base 17; The positioning post 52 is set on the top of the electronic scale 51, and the shape of the positioning post 52 is adapted to the positioning hole 261.

[0075] Understandably, the weighing assembly 50 is located at the bottom of the inner cavity 12, and when the transmission assembly 40 is extended to its shortest length, the sampling bottle 20 falls onto the weighing assembly 50. The weighing assembly 50 includes an electronic scale 51 and a positioning post 52. The positioning post 52 is mounted on the electronic scale 51 and is used to position and stabilize the sampling bottle 20. The positioning post 52 is hollow and has a cylindrical post inside. The positioning seat 26 of the sampling bottle 20 is inserted into the positioning post 52, and the cylindrical post of the positioning post 52 is inserted into the positioning hole 261, achieving a stable connection between the sampling bottle 20 and the weighing assembly 50.

[0076] The electronic scale 51 also includes a mounting base 511 for connecting to the support base 17.

[0077] In one optional embodiment provided by this utility model, refer to Figure 17 As shown, the control components include: a control chip, a battery, a switch, and Bluetooth. The control chip is electrically connected to the overflow assembly, transmission assembly, and weighing assembly. The control chip also includes a battery, a switch, and a Bluetooth electrical connection; The battery is electrically connected to the overflow assembly, transmission assembly, and weighing assembly. Bluetooth connectivity with mobile devices.

[0078] Understandably, the control component 60 is the core processing unit of the device, which includes a control chip, a battery, a switch, and Bluetooth. The control chip, battery, and Bluetooth are housed within the electronic cavity. Furthermore, they can be mounted on an electrical mounting plate. The control chip is used to receive / transmit signals and data. The battery powers the various components of the device. Bluetooth is used for communication with mobile devices. Additionally, the switch, located on the outer wall of the housing 10, can be a waterproof switch for starting and stopping the device.

[0079] For example, pressing and holding the switch will activate the sediment content detection device 100, and pressing and holding the switch again will deactivate the device.

[0080] When the sediment content detection device 100 is in the activated state, the mobile terminal sends a sampling signal to the control chip via Bluetooth. The control chip receives the sampling signal and sends a lifting command to the transmission component 40. The transmission component 40 transports the sampling bottle 20 to the sampling position. After the transmission component 40 completes its operation, the control chip sends a sealing command to the overflow component 30, and the air pump inflates the air bag 321 to seal the overflow pipe 21 and the drainage chamber 31. After the overflow component 30 completes its operation (while the rubber stopper 33 needs to be manually sealed to close the outlet of the overflow component 30), the sediment content detection device 100 can be placed in the water area for sampling.

[0081] After sampling, place the sediment content detection device 100 in a horizontal position (place it on a horizontal platform, or on a leveling device, or suspend it using a tripod), and then pull out the rubber stopper 33 to overflow the excess water sample.

[0082] The mobile device sends a weighing signal to the control chip via Bluetooth. The control chip receives the weighing signal and sends a release command to the overflow assembly 30. The airbag 321 deflates, creating a gap between the overflow pipe 21 and the drainage chamber 31. After the overflow assembly 30 completes its operation, the control chip sends a descent command to the transmission assembly 40, which then transports the sampling bottle 20 to the weighing position. After the transmission assembly 40 completes its operation, the control chip acquires the data from the weighing assembly 50 and sends it to the mobile device via Bluetooth. This completes one sediment content detection.

[0083] If repeated testing is required, a sampling signal can be sent from the mobile device to return sampling bottle 20 to the sampling position, the water sample can be poured out, and sampling bottle 20 can be rinsed. Then, the above operation can be repeated to sample and weigh again.

[0084] It should be noted that the default weight of 20 empty sampling bottles and accessories can be set, with each test consisting of: sampling and weighing. Alternatively, the weight of 20 empty sampling bottles and accessories can be re-weighed each time, with each test consisting of: weighing, sampling, and weighing.

[0085] In one optional embodiment of this invention, a densitometer is further included, which is disposed on the outer wall of the cylinder 10. The densitometer is capable of measuring liquid density or relative density and is used to calibrate weighing data.

[0086] In summary, the sediment content detection device provided by this utility model achieves at least the following beneficial effects: In the embodiments provided by this utility model, the switching between the sampling bottle and the weighing position is realized by integrating a transmission component inside the cylinder, achieving an integrated design of sampling and weighing. The overflow component is designed to maintain a constant volume, ensuring uniform water sample volume. Simultaneously, the wet and dry separation arrangement of the water-contacting components and electrical control components in this embodiment not only prevents external debris from contaminating the water sample but also enhances the waterproof protection capability of the electrical system. The simplified mechanical structure and low failure rate allow for long-term application in field sediment detection in rivers, slope runoff, etc. Compared to existing detection equipment where the sampling bottle and weighing device are separate and require manual sample transport, this embodiment eliminates the manual transport step of the sampling bottle, improving the convenience of detection. The built-in sampling bottle prevents moisture from adhering to the outer wall of the sampling bottle during sampling, eliminating the need for wiping the outer wall, saving operational steps, and eliminating detection errors caused by moisture adhering to the outer wall of the sampling bottle. It also avoids measurement errors caused by mud and water leakage and sediment spillage during transport.

[0087] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A device for detecting sediment content, characterized in that, include: The cylindrical body and the sampling bottle, overflow assembly, transmission assembly, weighing assembly and control assembly disposed within the cylindrical body; The sampling bottle includes an overflow tube, which includes an inclined section, a vertical section, and a bent section connecting the inclined section and the vertical section. One end of the inclined section is connected to the side wall of the inlet section of the sampling bottle, and the other end is inclined upwards. One end of the bent section is connected to the end of the inclined section away from the sampling bottle, and the other end is connected to the top end of the vertical section. The bottom end of the vertical section extends vertically downwards into the overflow assembly. The overflow assembly is located on one side of the sampling bottle, with one end of the overflow assembly inlet adapted to the overflow tube, and one end of the overflow assembly outlet penetrating the cylinder. The transmission assembly is located below the sampling bottle. The transmission assembly is capable of extending and retracting longitudinally. When the transmission assembly is at its highest point in the longitudinal direction, the sampling bottle is conveyed to the sampling position; when the transmission assembly is at its lowest point in the longitudinal direction, the sampling bottle is conveyed to the weighing position. The weighing component is located below the sampling bottle. When the transmission component is at its lowest point in the longitudinal direction, the sampling bottle is separated from the transmission component and placed on the weighing component. The control component is located at the bottom of the cylinder, and the overflow component, the transmission component, and the weighing component are electrically connected to the control component.

2. The sediment content detection device according to claim 1, characterized in that, The cylindrical body includes a top cover, an inner cavity, an electronic cavity, and a bottom cover, which are connected longitudinally from top to bottom; The top cover and the inner cavity are connected by an upper support ring, which is disposed on the inner wall of the top cover and the inner cavity; The inner cavity and the electronic cavity are connected by a lower support ring, which is disposed on the inner wall of the inner cavity and the electronic cavity; The inner wall of the lower support ring is provided with a support base; The bottom cover is disposed at the bottom of the electronic cavity and is connected to the support base via a support rod; The sampling bottle, the overflow assembly, the transmission assembly, and the weighing assembly are disposed within the inner cavity; The control components are disposed within the electronic cavity.

3. The sediment content detection device according to claim 2, characterized in that, The top cover includes: a cover body, a sealing plate, and a water inlet funnel; The sealing plate is disposed in the cover body and is connected to the upper support ring by a positioning pin; The cover has several openings; the sealing plate has a water inlet hole, and a top sealing seat is provided around the water inlet hole; the top of the water inlet funnel is connected to the top sealing seat. When the sampling bottle is in the sampling position, the bottom of the water inlet funnel is inserted into the inlet section of the sampling bottle.

4. The sediment content detection device according to claim 3, characterized in that, The top cover also includes a suspension hook, which is located at the geometric center of the top of the cover.

5. The sediment content detection device according to claim 3, characterized in that, The sampling bottle includes: an inlet section, a narrowing section, and a straight section; The aperture of the inlet section is adapted to the bottom of the inlet funnel; The reduced diameter section is frustum-shaped, with the top aperture being the same as the inlet diameter and the bottom aperture being the same as the straight section aperture.

6. The sediment content detection device according to claim 5, characterized in that, The bottom of the sampling bottle is provided with a positioning groove and a positioning seat; The positioning groove is provided on the lower surface of the straight section, and the positioning groove includes an annular groove and a circular groove; The positioning seat is connected to the geometric center of the lower surface of the straight section, and a positioning hole is provided at the bottom of the positioning seat.

7. The sediment content detection device according to claim 2, characterized in that, The overflow assembly includes: a drain chamber, a sealing structure disposed at the inlet of the drain chamber, and a rubber plug disposed at the outlet of the drain chamber; The drainage chamber is L-shaped, with the inlet located at the top and the opening pointing upwards, and the outlet located at the bottom and the opening pointing towards the inner cavity. The end of the drainage chamber near the water outlet penetrates the inner cavity; The sealing structure includes an airbag and an air pump connected to the airbag via an air tube; The airbag is ring-shaped and is located at the inlet of the drainage chamber.

8. The sediment content detection device according to claim 2, characterized in that, The transmission assembly includes a power structure, a telescopic structure, and a tray; The bottoms of both the power structure and the telescopic structure are mounted on the support base, and the tops of both the power structure and the telescopic structure are connected to the tray. The power structure is an electric push rod capable of longitudinal extension and retraction; The telescopic structure includes a guide rail and a bearing component sleeved on the guide rail, which can move longitudinally along the guide rail; The guide rail is erected vertically and its bottom is connected to the support base; The bearing component includes a bearing and a bearing housing; The bearing is sleeved on the guide rail, the bearing housing is sleeved on the bearing, and the bearing housing is connected to the tray.

9. The sediment content detection device according to claim 6, characterized in that, The weighing components include an electronic scale and a positioning stake; The electronic scale is mounted on the support base; The positioning stake is set on the top of the electronic scale, and the shape of the positioning stake is adapted to the positioning hole.

10. The sediment content detection device according to claim 1, characterized in that, The control components include: a control chip, a battery, a switch, and Bluetooth; The control chip is electrically connected to the overflow component, the transmission component, and the weighing component; The control chip is also electrically connected to the battery, the switch, and the Bluetooth device. The battery is electrically connected to the overflow assembly, the transmission assembly, and the weighing assembly; The Bluetooth connection enables communication with the mobile device.

11. The sediment content detection device according to claim 1, characterized in that, It also includes a densitometer, which is disposed on the outer wall of the cylinder.

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