A sampling mechanism for detecting water conservancy sediment content

Abstract

The present invention discloses a sampling mechanism for detecting sediment content in water conservancy projects, belonging to the technical field of sampling mechanisms. The present invention comprises a support platform and a servo motor mounted on the upper end of the support platform, wherein the output end of the servo motor is connected to a sampling barrel, a retention hole is formed on the side of the upper end of the sampling barrel, and a water leakage cover is fixed inside the sampling barrel. A protective bottom cover is provided at the bottom of the sampling barrel, and a drain pipe is installed on the protective bottom cover. A first cylinder is mounted on the upper end of the support platform, and the telescopic end of the first cylinder is interconnected by a guide connecting rod and a closed ring, the closed ring is used to control the opening and closing of the retention hole, and a sand filter cloth is provided inside the water leakage cover. When sampling water samples, the sampling mechanism for detecting sediment content in water conservancy projects facilitates stirring of the surrounding water area to be sampled, thereby equalizing the sediment content of the water area and improving the accuracy of subsequent test results.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy sediment content detection, in particular to a sampling mechanism for water conservancy sediment content detection. Background Art

[0002] Changes in sediment content not only directly reflect the erosion and sedimentation conditions of water bodies, but also have a profound impact on river ecology, the safe operation of water conservancy facilities, and farmland irrigation efficiency. Therefore, in order to facilitate the detection of sediment content in water sources, corresponding sampling agencies are usually used to collect water samples.

[0003] For example, the patent number is CN114894685B, the patent name is: A high-efficiency water conservancy and hydrological sediment content detection device, the announcement date is 2024-06-28, and it includes a support device; a probe device is fixedly connected to the support device, and a driving device is installed on the probe device; an extraction device is threadedly connected to the driving device, and the extraction device is slidably connected to the probe device on both sides; three closing devices are slidably connected to the probe device; a collecting part and a driving device are fixedly connected to the support device, which can realize rapid and simultaneous driving of multiple mechanisms. The above-mentioned prior art has the following technical problems:

[0004] Although the existing sampling mechanism can separate the sand and gravel in the water when sampling, it is not convenient to stir the surrounding water area to be sampled during sampling, which leads to deviations in the sampling results due to differences in local sand content during the subsequent sampling process, thereby affecting the reliability of the final test results.

[0005] Therefore, we proposed a sampling mechanism for water conservancy sediment content detection in order to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a sampling mechanism for detecting water conservancy sediment content, so as to solve the problem raised in the above background technology that the existing sampling mechanisms on the market can facilitate the separation of sand and gravel in the water when sampling water bodies, but are not convenient for stirring the surrounding waters to be sampled during sampling, resulting in deviations in the sampling results due to differences in local sediment content during the subsequent sampling process, thereby affecting the reliability of the final detection results.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sampling mechanism for detecting water conservancy sediment content, comprising a supporting platform and a servo motor installed on the upper end of the supporting platform, and the output end of the servo motor is connected to a sampling barrel, an interception hole is opened on the side of the upper end of the sampling barrel, and a water leakage cover is fixed inside the sampling barrel, a protective bottom cover is provided at the bottom of the sampling barrel, and a drain pipe is installed on the protective bottom cover, a first cylinder is installed at the upper end of the supporting platform, and the telescopic ends of the first cylinder are interconnected through a guide connecting rod and a closed ring, the closed ring is used to control the opening and closing of the interception hole, a sand-blocking filter cloth is provided inside the water leakage cover, and a stirring component is installed between the lower end of the supporting platform and the upper end of the sampling barrel to make the sediment content of the water area to be sampled uniform.

[0008] Preferably, the protective bottom cover and the lower end of the sampling cylinder are threadedly connected, and a control valve is installed on the drain pipe on the protective bottom cover.

[0009] By adopting the above technical solution, through the threaded connection between the protective bottom cover and the bottom of the sampling barrel, it is convenient to rotate and unscrew the protective bottom cover at the lower end of the sampling barrel, and take out the separated sand and gravel inside for testing.

[0010] Preferably, the inner wall of the closed ring and the outer wall of the sampling tube are in contact with each other, and the closed ring can slide on the sampling tube.

[0011] By adopting the above technical solution, the retaining hole provided on the sampling barrel can be opened or blocked conveniently by moving the sealing ring on the sampling barrel.

[0012] Preferably, the lower end of the sand filter cloth is fixed on the water leakage cover, and the upper end of the sand filter cloth is fixed on the movable disk, the rod body on the side of the movable disk passes through the water leakage cover, and the end of the rod body on the movable disk is connected to the water leakage cover through an auxiliary spring.

[0013] By adopting the above technical solution, the up and down reciprocating movement of the movable disk can cause the sand filter cloth to vibrate, thereby shaking off the sand and stones attached to the sand filter cloth, and the auxiliary spring setting can allow the movable disk to reset and rebound after movement.

[0014] Preferably, the stirring component includes a lifting rod fixed to the upper end of the movable disk, the lower end of the lifting rod is fixed on the movable disk, a mixing frame is provided above the lifting rod, and a vertical insertion rod is fixed to the upper end of the mixing frame, the vertical insertion rod is inserted into the lower end of the support platform, and the vertical insertion rod is connected to the inside of the support platform through a built-in spring, and a blocking pressure plate is provided above the vertical insertion rod, and the blocking pressure plate is fixed on the telescopic end of the second cylinder.

[0015] By adopting the above technical solution, the distance from the top of the vertical insertion rod can be changed by blocking the movement of the pressure plate position, thereby controlling the movement distance of the vertical insertion rod.

[0016] Preferably, the upper end of the lifting rod and the lower end of the mixing frame are both configured as arc structures, and a plurality of branch rods are evenly distributed on the mixing frame, and the spring coefficient of the built-in spring is smaller than the spring coefficient of the auxiliary spring.

[0017] By adopting the above technical solution, when the lifting rod rotates along with the sampling tube, the lifting rod can be used to push the mixing rack above.

[0018] Preferably, the mixing rack and the vertical insertion rod are vertically distributed, and the vertical insertion rod and the mixing rack are symmetrically arranged about the transverse center axis of the sampling cylinder, and the vertical insertion rod can slide on the supporting platform.

[0019] By adopting the above technical solution, the vertical insertion rod moves on the support platform, thereby ensuring the stability of the vertical insertion rod when moving on the support platform.

[0020] Preferably, a disturbance lever is mounted on the guide link, and the disturbance lever is connected to the guide link via a vortex spring.

[0021] By adopting the above technical solution, the rotation of the sampling tube can cause the lifting rod on it to rotate synchronously. By utilizing the contact and disengagement between the lifting rod and the disturbance lever during rotation, the disturbance lever can be rotated back and forth on the guide connecting rod, thereby utilizing the rotation of the disturbance lever to stir the water area around the sampling tube.

[0022] Preferably, the disturbance lever can rotate on the guide connecting rod, and when the closing ring blocks the intercepting hole on the side of the sampling cylinder, the end of the disturbance lever close to the sampling cylinder is located on the rotation track of the lifting rod.

[0023] By adopting the above technical solution, when the sampling tube rotates, the lifting rod can be driven to rotate synchronously. The rotation of the lifting rod can push the disturbance lever, so that the disturbance lever rotates back and forth under the action of the vortex spring.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the sampling mechanism for water conservancy sediment content detection can conveniently stir the surrounding water area to be sampled when sampling water samples, so as to make the sediment content of the water area uniform, thereby improving the accuracy of subsequent test results;

[0025] 1. A drain pipe is provided. The drain pipe is provided on the protective bottom cover, so that the water separated from the inside of the sampling tube can be discharged outwards. At the same time, the protective bottom cover is connected to the bottom of the sampling tube through a thread, so that the protective bottom cover can be unscrewed from the sampling tube to take out the sand and gravel separated from the inside for testing.

[0026] 2. A disturbance lever is provided. The rotation of the sampling tube can cause the lifting rod on it to rotate synchronously. The disturbance lever can be rotated back and forth on the guide rod by the contact and separation of the lifting rod with the disturbance lever during rotation. The water around the sampling tube can be stirred by the rotation of the disturbance lever.

[0027] 3. A mixing rack is provided. When the jacking rod rotates, the contact and separation of the upper end arc surface and the bottom arc surface of the mixing rack can make the mixing rack and the vertical insertion rod move up and down in the vertical direction. The up and down reciprocating movement of the mixing rack can further stir the surrounding waters through the branch rods on it, so that the sediment content in the water source around the water area to be sampled is equalized;

[0028] 4. A movable plate is provided, which blocks the contact between the pressure plate and the top of the vertical insertion rod, thereby preventing the vertical insertion rod from being lifted and moved. At this time, when the jacking rod and the mixing frame are in contact and squeezed with each other, the jacking rod and the movable plate will move downward. When the jacking rod is separated from the mixing frame, the jacking rod and the movable plate will reset under the action of the auxiliary spring, thereby realizing the up and down reciprocating movement of the movable plate. The up and down reciprocating movement of the movable plate can make the sand filter cloth shake, thereby shaking off the sand and stones attached to the sand filter cloth;

[0029] 5. A blocking pressure plate is provided, which is controlled by the second cylinder to move downward, so that the blocking pressure plate can not only prevent the vertical insertion rod from moving upward, but also push the vertical insertion rod and the mixing frame downward. By changing the downward movement distance of the mixing frame, the movement distance of the jacking rod and the movable plate can be changed, thereby indirectly controlling the compression movement distance of the sand filter cloth according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the sampling tube and the protective bottom cover of the present invention;

[0032] Figure 3 This is a schematic diagram of the sampling tube and closed ring structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the sampling tube and the water leakage cover of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the movable disk and the jacking rod of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the water leakage cover and the sand filter cloth of the present invention;

[0036] Figure 7 For the present invention Figure 6A in the middle is an enlarged structural diagram;

[0037] Figure 8 This is a schematic diagram of the support platform and mixing frame structure of the present invention;

[0038] Figure 9 It is a schematic diagram of the vertical insertion rod and the blocking pressure plate structure of the present invention.

[0039] In the figure: 1. Support platform; 2. Servo motor; 3. Sampling cylinder; 4. Retention hole; 5. Leakage cover; 6. Protective bottom cover; 7. Drain pipe; 8. First cylinder; 9. Guide connecting rod; 10. Closing ring; 11. Sand filter cloth; 12. Movable plate; 13. Auxiliary spring; 14. Lifting rod; 15. Mixing frame; 16. Vertical insertion rod; 17. Built-in spring; 18. Blocking pressure plate; 19. Second cylinder; 20. Disturbance lever. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figures 1-9When sampling water, the existing sampling mechanism can separate the sand and gravel in the water, but it is not convenient to stir the surrounding water area to be sampled during sampling, which leads to deviations in the sampling results due to differences in local sand content in the subsequent sampling process, thereby affecting the reliability of the final detection results. In order to solve this technical problem, the following technical content is disclosed in this embodiment: a sampling mechanism for water conservancy sand content detection, including a supporting platform 1 and a servo motor 2 installed on the upper end of the supporting platform 1, and the output end of the servo motor 2 is connected to a sampling cylinder 3, and a retention hole is opened on the side of the upper end of the sampling cylinder 3 4, and a water leakage cover 5 is fixed inside the sampling tube 3, a protective bottom cover 6 is provided at the bottom of the sampling tube 3, and a drain pipe 7 is installed on the protective bottom cover 6, a first cylinder 8 is installed on the upper end of the support platform 1, and the telescopic end of the first cylinder 8 is connected to each other through a guide connecting rod 9 and a closed ring 10, and the closed ring 10 is used to control the opening and closing of the interception hole 4, a sand filter cloth 11 is provided inside the water leakage cover 5, and a stirring component for making the sand content of the water area to be sampled uniform is installed between the lower end of the support platform 1 and the upper end of the sampling tube 3, the protective bottom cover 6 and the lower end of the sampling tube 3 are threadedly connected, and a control valve is installed on the drain pipe 7 on the protective bottom cover 6, and the sealing The inner wall of the closed loop 10 and the outer wall of the sampling tube 3 fit together, and the closed loop 10 can slide on the sampling tube 3. The stirring component includes a lifting rod 14 fixed to the upper end of the movable disk 12, and the lower end of the lifting rod 14 is fixed to the movable disk 12. A mixing rack 15 is provided above the lifting rod 14, and a vertical insertion rod 16 is fixed to the upper end of the mixing rack 15. The vertical insertion rod 16 is inserted into the lower end of the support platform 1, and the vertical insertion rod 16 is connected to the inside of the support platform 1 through a built-in spring 17. The upper end of the lifting rod 14 and the lower end of the mixing rack 15 are both arranged in an arc structure, and a plurality of branch rods are evenly distributed on the mixing rack 15. The body, and the spring coefficient of the built-in spring 17 is smaller than the spring coefficient of the auxiliary spring 13, the mixing frame 15 and the vertical insertion rod 16 are vertically distributed, and the vertical insertion rod 16 and the mixing frame 15 are symmetrically arranged about the transverse central axis of the sampling cylinder 3, and the vertical insertion rod 16 can slide on the support platform 1, and a disturbance lever 20 is installed on the guide link 9, and the disturbance lever 20 is connected to the guide link 9 through a vortex spring. The disturbance lever 20 can rotate on the guide link 9, and when the closing ring 10 blocks the intercepting hole 4 on the side of the sampling cylinder 3, the end of the disturbance lever 20 close to the sampling cylinder 3 is located on the rotation trajectory of the lifting rod 14.

[0042] When sampling a water body, the sampling structure is placed in the corresponding water area. After the sampling structure is in place, the sampling cylinder 3 is controlled to rotate by the servo motor 2. When the sampling cylinder 3 rotates, it can drive the lifting rod 14 thereon to rotate synchronously. When the lifting rod 14 rotates and contacts with the disturbance lever 20 on the guide link 9, it can push the disturbance lever 20 to rotate on the guide link 9. When the lifting rod 14 rotates and disengages from the disturbance lever 20, the disturbance lever 20 is reset under the action of the vortex spring, thereby realizing the reciprocating rotation of the disturbance lever 20 on the guide link 9. 0 reciprocating rotation can stir the water area around the sampling tube 3, so that the sand content in the water area can be equalized. At the same time, after the arc-shaped end of the jacking rod 14 contacts the arc surface of the mixing frame 15 after rotation, the jacking rod 14 can push the mixing frame 15 upward, so that the mixing frame 15 and the vertical insertion rod 16 move toward the top of the support platform 1. The movement of the vertical insertion rod 16 causes its built-in spring 17 to compress and deform. When the jacking rod 14 rotates and disengages from the mixing frame 15, the mixing frame 15 and the vertical insertion rod 16 reset and rebound under the action of the built-in spring 17, thereby realizing the up and down movement of the mixing frame 15. Reciprocating movement, through the up and down reciprocating movement of the mixing frame 15 and the use of the branch rods evenly distributed thereon, the surrounding waters can be further stirred. After the waters are stirred and mixed, the first cylinder 8 is turned on. After the first cylinder 8 is turned on, it can push the guide connecting rod 9 and the closed ring 10 to move downward. After the closed ring 10 moves downward, the interception hole 4 on the sampling tube 3 can be released. At this time, the external water source can enter the interior of the sand filter cloth 11 through the interception hole 4 and the opening in the middle of the movable disk 12. When the water sampling is completed, the first cylinder 8 controls the guide connecting rod 9 and the closed ring 10 to move upward, and the closed ring 10 moves After that, the interception hole 4 can be sealed again, the sampling structure can be taken out of the water area, and then the sampling cylinder 3 can be controlled to rotate by the servo motor 2. The rotation of the sampling cylinder 3 can use centrifugal force to throw the water outward, and the water flows out through the sand-blocking filter cloth 11 and the leakage cover 5, while the sand and gravel will remain inside the sand-blocking filter cloth 11. Open the control valve of the drain pipe 7 on the protective bottom cover 6. At this time, the water inside the sampling cylinder 3 will flow out through the drain pipe 7. Then rotate the protective bottom cover 6 at the bottom of the sampling cylinder 3, so that the protective bottom cover 6 can be removed from the bottom of the sampling cylinder 3, and then the sand and gravel content at the separation point can be tested.

[0043] Example 2: The technical content disclosed in this example is a further improvement based on the above-mentioned example 1. The lower end of the sand-blocking filter cloth 11 is fixed on the water leakage cover 5, and the upper end of the sand-blocking filter cloth 11 is fixed on the movable disk 12. The rod body on the side of the movable disk 12 passes through the water leakage cover 5, and the end of the rod body on the movable disk 12 is connected to the water leakage cover 5 through an auxiliary spring 13. A blocking pressure plate 18 is provided above the vertical insertion rod 16, and the blocking pressure plate 18 is fixed on the telescopic end of the second cylinder 19.

[0044] After the water sampling is completed, when the sediment in the water is centrifuged by the rotation of the sampling tube 3, the second cylinder 19 is turned on. The opening of the second cylinder 19 can make the blocking pressure plate 18 move downward, so that the blocking pressure plate 18 moves to the bottom position of the vertical insertion rod 16. At this time, the sampling tube 3 can drive the lifting rod 14 to rotate synchronously when rotating. When the arc-shaped end of the lifting rod 14 contacts the arc surface of the mixing frame 15 during the rotation, because the blocking pressure plate 18 has been fitted with the top of the vertical insertion rod 16, the vertical insertion rod 16 will not move upward. Therefore, when the subsequent lifting rod 14 contacts the mixing frame 15, the mixing frame 15 can squeeze and push the lifting rod 14, so that the lifting rod 14 drives the movable disk 12 downward. When the lifting rod 14 disengages from the mixing frame 15 as the sampling tube 3 rotates, the lifting rod 14 and the movable disk 1 Under the action of the auxiliary spring 13, the lifting rod 14 and the movable plate 12 are reset and rebounded, thereby realizing the up and down reciprocating movement of the lifting rod 14 and the movable plate 12. At the same time, the upper end of the sand filter cloth 11 is fixed to the movable plate 12. Therefore, when the movable plate 12 reciprocates, the sand filter cloth 11 can be shaken. The shaking of the sand filter cloth 11 can shake off the centrifugally attached sand and stones, thereby preventing some sand and stones from adhering to the sand filter cloth 11 and affecting the final detection result. When the blocking pressure plate 18 moves downward, not only can the vertical insertion rod 16 be prevented from being lifted upward, but the blocking pressure plate 18 can also push the vertical insertion rod 16 downward. The movement of the vertical insertion rod 16 can make the mixing frame 15 move synchronously. The change of the initial position of the mixing frame 15 can also control the downward squeezing distance of the lifting rod 14, thereby indirectly controlling the compression distance of the sand filter cloth 11.

[0045] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sampling mechanism for detecting sediment content in water conservancy, comprising a support platform (1) and a servo motor (2) mounted on the upper end of the support platform (1), wherein the output end of the servo motor (2) is connected to a sampling tube (3), a retaining hole (4) is provided on the side of the upper end of the sampling tube (3), a water leakage cover (5) is fixed inside the sampling tube (3), a protective bottom cover (6) is provided at the bottom of the sampling tube (3), and a drainage pipe (7) is installed on the protective bottom cover (6), characterized in that: The upper end of the support platform (1) is provided with a first cylinder (8), and the telescopic end of the first cylinder (8) is connected to each other through a guide connecting rod (9) and a closed ring (10), and the closed ring (10) is used to control the opening and closing of the interception hole (4). The interior of the water leakage cover (5) is provided with a sand filter cloth (11), and a stirring component for making the sand content of the water area to be sampled uniform is installed between the lower end of the support platform (1) and the upper end of the sampling tube (3). The lower end of the sand filter cloth (11) is fixed on the water leakage cover (5), and the upper end of the sand filter cloth (11) is fixed on the movable disk (12). The rod body on the side of the movable disk (12) passes through the water leakage cover (5), and the end of the rod body on the movable disk (12) is connected to the water leakage cover (5) through an auxiliary spring (13). The stirring component includes a lifting rod (14) fixed to the upper end of the movable disk (12). The lifting rod (14) ) is fixed on the movable disk (12), a mixing frame (15) is provided above the jacking rod (14), and a vertical insertion rod (16) is fixed to the upper end of the mixing frame (15), the vertical insertion rod (16) is inserted into the lower end of the support platform (1), and the vertical insertion rod (16) is connected to the inside of the support platform (1) through the built-in spring (17), a blocking pressure plate (18) is provided above the vertical insertion rod (16), and the blocking pressure plate (18) is fixed on the telescopic end of the second cylinder (19), the upper end of the jacking rod (14) and the lower end of the mixing frame (15) are both arranged as arc structures, and when the arc end of the jacking rod (14) contacts the arc surface of the mixing frame (15) during the rotation process, the mixing frame (15) can squeeze and push the jacking rod (14), so that the jacking rod (14) drives the movable disk (12) to move downward.

2. A sampling mechanism for detecting water sediment content according to claim 1, characterized in that: The lower ends of the protective bottom cover (6) and the sampling cylinder (3) are threadedly connected, and a control valve is installed on the drainage pipe (7) on the protective bottom cover (6).

3. A sampling mechanism for detecting water sediment content according to claim 1, characterized in that: The inner wall of the closed ring (10) and the outer wall of the sampling cylinder (3) fit together, and the closed ring (10) can slide on the sampling cylinder (3).

4. A sampling mechanism for detecting water sediment content according to claim 1, characterized in that: A plurality of branch rods are evenly distributed on the mixing frame (15), and the spring coefficient of the built-in spring (17) is smaller than the spring coefficient of the auxiliary spring (13).

5. A sampling mechanism for detecting water sediment content according to claim 4, characterized in that: The mixing rack (15) and the vertical insertion rod (16) are vertically distributed, and the vertical insertion rod (16) and the mixing rack (15) are symmetrically arranged about the transverse central axis of the sampling cylinder (3), and the vertical insertion rod (16) can slide on the supporting platform (1).

6. A sampling mechanism for detecting water sediment content according to claim 5, characterized in that: A disturbance lever (20) is mounted on the guide link (9), and the disturbance lever (20) is connected to the guide link (9) via a vortex spring.

7. A sampling mechanism for detecting water sediment content according to claim 6, characterized in that: The disturbance lever (20) is capable of rotating on the guide connecting rod (9), and when the closed ring (10) blocks the intercepting hole (4) on the side of the sampling cylinder (3), the end of the disturbance lever (20) close to the sampling cylinder (3) is located on the rotation track of the lifting rod (14).

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