Sampling mechanism for detecting sand content in water conservancy

Abstract

The invention discloses a sampling mechanism for water conservancy sand content detection, and belongs to the technical field of sampling mechanisms, the sampling mechanism comprises a supporting platform and a servo motor mounted at the upper end of the supporting platform, the output end of the servo motor is connected with a sampling barrel, an interception hole is formed in the side edge of the upper end of the sampling barrel, and a water leakage cover is fixed in the sampling barrel; a protective bottom cover is arranged at the bottom of the sampling barrel, a drainage pipe is installed on the protective bottom cover, a first air cylinder is installed at the upper end of the supporting platform, the telescopic end of the first air cylinder is connected with a sealing ring through a guide connecting rod, the sealing ring is used for controlling opening and closing of an interception hole, and sand blocking filter cloth is arranged in a water leakage cover. According to the sampling mechanism for water conservancy sand content detection, when a water body sample is sampled, a surrounding water area to be sampled is conveniently stirred, so that the sand content of the water area is equal, and the accuracy of a subsequent detection result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy sediment content detection, and specifically provides a sampling mechanism for water conservancy sediment content detection. Background Technique

[0002] The change of sediment content not only directly reflects the erosion and deposition status of water bodies, but also has a profound impact on river ecology, the safe operation of water conservancy facilities, and the efficiency of farmland irrigation. Therefore, in order to facilitate the detection of sediment content in water sources, corresponding sampling mechanisms are usually used to collect water body samples.

[0003] For example, the publication number is: CN114894685B, the patent name is: A High-efficiency Water Conservancy and Hydrology Sediment Content Detection Device, and the publication date is: 2024-06-28. It includes a support device; a probing device is fixedly connected to the support device, and a driving device is installed on the probing device; a extraction device is threadedly connected to the driving device, and both sides of the extraction device are slidably connected to the probing device; three closing devices are slidably connected to the probing device; a collection part is fixedly connected to the support device, and the driving device can realize the rapid simultaneous driving of multiple mechanisms to operate. Among the above-mentioned prior arts, the following technical problems exist: When the existing sampling mechanism samples water bodies, although it can facilitate the separation of sand and stones in the water, it is not convenient to stir the surrounding water area to be sampled during sampling, resulting in deviation of the sampling result due to local sediment content differences during the subsequent sampling process, thereby affecting the reliability of the final detection result.

[0004] Therefore, we propose a sampling mechanism for water conservancy sediment content detection to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a sampling mechanism for water conservancy sediment content detection to solve the problem in the above-mentioned background technique that when the existing sampling mechanism in the current market samples water bodies, although it can facilitate the separation of sand and stones in the water, it is not convenient to stir the surrounding water area to be sampled during sampling, resulting in deviation of the sampling result due to local sediment content differences during the subsequent sampling process, thereby affecting the reliability of the final detection result.

[0006] To achieve the above object, the present invention provides the following technical solution: A sampling mechanism for detecting sediment content in water conservancy, including a support platform and a servo motor installed at the upper end of the support platform, and the output end of the servo motor is connected to a sampling cylinder. An intercepting hole is opened on the side of the upper end of the sampling cylinder, and a water leakage cover is fixed inside the sampling cylinder. A protective bottom cover is arranged at the bottom of the sampling cylinder, and a drain pipe is installed on the protective bottom cover. A first cylinder is installed at the upper end of the support platform, and the telescopic end of the first cylinder is connected to a closing ring through a guiding connecting rod. The closing ring is used to control the opening and closing of the intercepting hole. A sand-blocking filter cloth is arranged inside the water leakage cover. A stirring component for making the sediment content in the water area to be sampled uniform is installed between the lower end of the support platform and the upper end of the sampling cylinder.

[0007] Preferably, the protective bottom cover and the lower end of the sampling cylinder are in threaded connection, and a control valve is installed on the drain pipe on the protective bottom cover.

[0008] By adopting the above technical solution, through the threaded connection between the protective bottom cover and the bottom of the sampling cylinder, it is convenient to rotate and unscrew the protective bottom cover at the lower end of the sampling cylinder to take out the separated sand and stones inside for detection.

[0009] Preferably, the inner wall of the closing ring fits with the outer wall of the sampling cylinder, and the closing ring can slide on the sampling cylinder.

[0010] By adopting the above technical solution, through the movement of the closing ring on the sampling cylinder, it is convenient to open or block the intercepting hole opened on the sampling cylinder.

[0011] Preferably, the lower end of the sand-blocking filter cloth is fixed on the water leakage cover, and the upper end of the sand-blocking filter cloth is fixed on a movable disk. The rod on the side of the movable disk penetrates the water leakage cover, and the end of the rod on the movable disk is connected to the water leakage cover through an auxiliary spring.

[0012] By adopting the above technical solution, the reciprocating movement of the movable disk up and down can make the sand-blocking filter cloth vibrate, thereby shaking off the sand and stones attached to the sand-blocking filter cloth. The setting of the auxiliary spring can make the moved movable disk reset and rebound.

[0013] Preferably, the stirring component includes a jacking rod fixed at the upper end of the movable disk. The lower end of the jacking rod is fixed on the movable disk. A mixing frame is arranged above the jacking rod, and a vertical insertion rod is fixed at the upper end of the mixing frame. The vertical insertion rod is inserted into the inner part of 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. A blocking pressure plate is arranged above the vertical insertion rod, and the blocking pressure plate is fixed on the telescopic end of the second cylinder.

[0014] By adopting the above technical solution, the movement of the position of the blocking pressure plate can change the distance from the top of the vertical insertion rod, so as to control the moving distance of the vertical insertion rod.

[0015] Preferably, the upper end of the jacking rod and the lower end of the mixing frame are both provided with arc-shaped structures, and a plurality of branch rod bodies are evenly distributed on the mixing frame, and the spring constant of the built-in spring is smaller than that of the auxiliary spring.

[0016] By adopting the above technical solution, when the jacking rod rotates with the sampling cylinder, the jacking rod can be used to push the mixing frame above.

[0017] Preferably, the mixing frame and the vertical insertion rod are vertically distributed, and the vertical insertion rod and the mixing frame are symmetrically arranged about the horizontal central axis of the sampling cylinder, and the vertical insertion rod can slide on the support platform.

[0018] By adopting the above technical solution, through the movement of the vertical insertion rod on the support platform, the stability of the vertical insertion rod when moving on the support platform can be ensured.

[0019] Preferably, a disturbance lever is installed on the guiding connecting rod, and the disturbance lever is connected to the guiding connecting rod through a scroll spring.

[0020] By adopting the above technical solution, the rotation of the sampling cylinder can cause the jacking rod thereon to rotate synchronously. By using the contact and separation between the rotating jacking rod and the disturbance lever, the disturbance lever can rotate reciprocally on the guiding connecting rod. Thus, the water area around the sampling cylinder can be stirred by using the rotation of the disturbance lever.

[0021] Preferably, the disturbance lever can rotate on the guiding connecting rod, and when the closing ring plugs 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 trajectory of the jacking rod.

[0022] By adopting the above technical solution, when the sampling cylinder rotates, it can drive the jacking rod to rotate synchronously. By using the rotation of the jacking rod, the disturbance lever can be pushed, so that the disturbance lever rotates reciprocally under the action of the scroll spring.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: when sampling the water body sample, the sampling mechanism for detecting the water and sediment content of this water conservancy is convenient for stirring the surrounding water area to be sampled, making the sediment content in the water area equal, and improving the accuracy of the subsequent detection results. 1. A drain pipe is provided. By arranging the drain pipe on the protective bottom cover, the water source separated inside the sampling cylinder can be conveniently discharged outward. At the same time, by using the threaded connection between the protective bottom cover and the bottom of the sampling cylinder, it is convenient to screw the protective bottom cover off the sampling cylinder to take out and detect the sand and stone content separated inside. 2. A perturbation lever is provided. When the sampling cylinder rotates, the jacking rod thereon can rotate synchronously. By the contact and separation between the jacking rod and the perturbation lever during rotation, the perturbation lever can rotate reciprocally on the guiding connecting rod, thereby agitating the water area around the sampling cylinder by the rotation of the perturbation lever; 3. A mixing frame is provided. When the jacking rod rotates, by the contact and separation between the upper arc surface of the jacking rod and the bottom arc surface of the mixing frame, the mixing frame and the vertical insertion rod can move up and down reciprocally along the vertical direction. By the up-and-down reciprocating movement of the mixing frame, the surrounding water area can be further agitated through the branch rod bodies thereon, making the sediment content in the water source around the water area to be sampled equal; 4. A movable disk is provided. By the contact between the blocking pressure plate and the top of the vertical insertion rod, the vertical insertion rod cannot be jacked and moved. At this time, when the jacking rod contacts and presses against the mixing frame, the jacking rod and the movable disk will move downward, and when the jacking rod separates from the mixing frame, the jacking rod and the movable disk will reset under the action of the auxiliary spring. Thus, the up-and-down reciprocating movement of the movable disk is realized. By the up-and-down reciprocating movement of the movable disk, the sand-blocking filter cloth can be shaken, and then the sand and stones attached to the sand-blocking filter cloth can be shaken off; 5. A blocking pressure plate is provided. The second cylinder is used to control the downward movement of the blocking pressure plate, 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 the change of the downward movement distance of the mixing frame, the movement distance of the jacking rod and the movable disk can be changed, and then the compression movement distance of the sand-blocking filter cloth can be indirectly controlled according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a front three-dimensional structure schematic diagram of the present invention; Figure 2 is a structure schematic diagram of the sampling cylinder and the protective bottom cover of the present invention; Figure 3 is a structure schematic diagram of the sampling cylinder and the closing ring of the present invention; Figure 4 is a structure schematic diagram of the sampling cylinder and the water leakage cover of the present invention; Figure 5 is a structure schematic diagram of the movable disk and the jacking rod of the present invention; Figure 6 is a structure schematic diagram of the water leakage cover and the sand-blocking filter cloth of the present invention; Figure 7 is of the present invention Figure 6 is an enlarged structure schematic diagram at position A in; Figure 8 is a structure schematic diagram of the support platform and the mixing frame of the present invention; Figure 9 is a structure schematic diagram of the vertical insertion rod and the blocking pressure plate of the present invention.

[0025] In the figure: 1, support platform; 2, servo motor; 3, sampling cylinder; 4, intercepting hole; 5, water leakage cover; 6, protective bottom cover; 7, drain pipe; 8, first cylinder; 9, guiding connecting rod; 10, sealing ring; 11, sand-blocking filter cloth; 12, movable disk; 13, auxiliary spring; 14, jacking rod; 15, mixing rack; 16, vertical insertion rod; 17, built-in spring; 18, blocking pressing disk; 19, second cylinder; 20, disturbing shifting rod. Specific implementation mode

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1: Please refer to Figures 1-9, when the existing sampling mechanism samples water, although it can facilitate the separation of sand and gravel in the water, it is not convenient to stir the surrounding water area to be sampled during sampling, resulting in deviation of the sampling result due to the difference in local sediment content during the subsequent sampling process, which in turn affects the reliability of the final detection result. To solve this technical problem, the following technical content is disclosed in this embodiment. A sampling mechanism for detecting water sediment content includes a support platform 1 and a servo motor 2 installed at the upper end of the support platform 1. The output end of the servo motor 2 is connected to a sampling cylinder 3. A cut-off hole 4 is provided on the side of the upper end of the sampling cylinder 3. A water leakage cover 5 is fixed inside the sampling cylinder 3. A protective bottom cover 6 is provided at the bottom of the sampling cylinder 3, and a drain pipe 7 is installed on the protective bottom cover 6. A first cylinder 8 is installed at the upper end of the support platform 1, and the telescopic end of the first cylinder 8 is connected to a closing ring 10 through a guiding connecting rod 9. The closing ring 10 is used to control the opening and closing of the cut-off hole 4. A sand-blocking filter cloth 11 is arranged inside the water leakage cover 5. A stirring component for making the sediment 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 cylinder 3. The protective bottom cover 6 and the lower end of the sampling cylinder 3 are in threaded connection, and a control valve is installed on the drain pipe 7 on the protective bottom cover 6. The inner wall of the closing ring 10 fits with the outer wall of the sampling cylinder 3, and the closing ring 10 can slide on the sampling cylinder 3. The stirring component includes a jacking rod 14 fixed at the upper end of a movable disk 12. The lower end of the jacking rod 14 is fixed on the movable disk 12. A mixing frame 15 is arranged above the jacking rod 14. A vertical insertion rod 16 is fixed at the upper end of the mixing frame 15. The vertical insertion rod 16 is inserted into the inner part of the lower end of the support platform 1 and is connected to the inside of the support platform 1 through a built-in spring 17. The upper end of the jacking rod 14 and the lower end of the mixing frame 15 are both of arc-shaped structures. A plurality of branch rod bodies are evenly distributed on the mixing frame 15. And the stiffness coefficient of the built-in spring 17 is less than the stiffness 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 horizontal central axis of the sampling cylinder 3. And the vertical insertion rod 16 can slide on the support platform 1. A disturbance lever 20 is installed on the guiding connecting rod 9, and the disturbance lever 20 is connected to the guiding connecting rod 9 through a scroll spring. The disturbance lever 20 can rotate on the guiding connecting rod 9. When the closing ring 10 blocks the cut-off 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 jacking rod 14.

[0028] When sampling water bodies, the sampling structure is placed in the corresponding water area. After the sampling structure is in place, the servo motor 2 is used to control the rotation of the sampling cylinder 3. When the sampling cylinder 3 rotates, the lifting rod 14 thereon can be driven to rotate synchronously. When the lifting rod 14 rotates and comes into contact with the disturbance lever 20 on the guiding connecting rod 9, it can push the disturbance lever 20 to rotate on the guiding connecting rod 9. When the lifting rod 14 rotates and disengages from the disturbance lever 20, the disturbance lever 20 resets under the action of the scroll spring. Thus, the reciprocating rotation of the disturbance lever 20 on the guiding connecting rod 9 can be realized. By using the reciprocating rotation of the disturbance lever 20, the water area around the sampling cylinder 3 can be stirred to make the sediment content in the water area uniform. At the same time, after the arc-shaped end of the lifting rod 14 comes into contact with the arc surface of the mixing frame 15 during rotation, the lifting rod 14 can push the mixing frame 15 upward, so that the mixing frame 15 and the vertical insertion rod 16 move upward above the support platform 1. The movement of the vertical insertion rod 16 causes the built-in spring 17 to undergo compressive deformation. When the lifting 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. Thus, the up-and-down reciprocating movement of the mixing frame 15 is realized. Through the up-and-down reciprocating movement of the mixing frame 15 and by using the uniformly distributed branch rod bodies thereon, the surrounding water area can be further stirred. After the water area is stirred and mixed, the first cylinder 8 is opened. After the first cylinder 8 is opened, it can push the guiding connecting rod 9 and the closing ring 10 downward. After the closing ring 10 moves downward, the blockage of the intercepting hole 4 on the sampling cylinder 3 can be released. At this time, the external water source can enter the inside of the sand-blocking filter cloth 11 through the intercepting hole 4 and the opening in the middle of the movable disk 12. When the water body sampling is completed, the first cylinder 8 controls the guiding connecting rod 9 and the closing ring 10 to move upward. After the closing ring 10 moves, it can block the intercepting hole 4 again. The sampling structure is taken out of the water area. Then, the servo motor 2 is continued to control the rotation of the sampling cylinder 3. Through the rotation of the sampling cylinder 3, the water source can be thrown outwards by centrifugal force. The water source flows out through the sand-blocking filter cloth 11 and the water leakage cover 5, while the sand and stones stay inside the sand-blocking filter cloth 11. The control valve of the drain pipe 7 on the protective bottom cover 6 is opened. At this time, the water source inside the sampling cylinder 3 will flow out through the drain pipe 7. Then, the protective bottom cover 6 is rotated at the bottom of the sampling cylinder 3. Thus, the protective bottom cover 6 can be removed from the bottom of the sampling cylinder 3, and then the sand and stone content at the separation can be detected.

[0029] Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above Embodiment 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 disc 12. The rod body on the side of the movable disc 12 penetrates through the water leakage cover 5, and the end of the rod body on the movable disc 12 is connected to the water leakage cover 5 through an auxiliary spring 13. Above the vertical insertion rod 16, there is a blocking pressure plate 18, and the blocking pressure plate 18 is fixed on the telescopic end of the second cylinder 19.

[0030] After the water sampling is completed, when centrifugally separating the sediment in the water by rotating the sampling cylinder 3, the second cylinder 19 is opened. The opening of the second cylinder 19 enables the blocking pressure plate 18 to move downward, so that the blocking pressure plate 18 moves to the bottom position of the vertical insertion rod 16. At this time, when the sampling cylinder 3 rotates, it can drive the jacking rod 14 to rotate synchronously. When the arc-shaped end of the jacking rod 14 contacts the arc surface of the mixing frame 15 during the rotation process, since the blocking pressure plate 18 has been in contact with the top of the vertical insertion rod 16, the vertical insertion rod 16 will not move upward. Therefore, when the jacking rod 14 contacts the mixing frame 15 subsequently, the mixing frame 15 can squeeze and push the jacking rod 14, so that the jacking rod 14 drives the movable disc 12 to move downward. When the jacking rod 14 rotates with the sampling cylinder 3 and disengages from the mixing frame 15, the jacking rod 14 and the movable disc 12 rebound and reset under the action of the auxiliary spring 13. Thus, the reciprocating up and down movement of the jacking rod 14 and the movable disc 12 can be realized. At the same time, the upper end of the sand-blocking filter cloth 11 is fixed to the movable disc 12. Therefore, when the movable disc 12 reciprocates, the sand-blocking filter cloth 11 can be shaken. Through the shaking of the sand-blocking filter cloth 11, the sand and stones attached by centrifugation can be shaken off, preventing the final detection result from being affected due to some sand and stones adhering to the sand-blocking filter cloth 11. After the blocking pressure plate 18 moves downward, it can not only prevent the vertical insertion rod 16 from being jacked upward, but also the blocking pressure plate 18 can push the vertical insertion rod 16 downward. Through the movement of the vertical insertion rod 16, the mixing frame 15 can be moved synchronously. By changing the initial position of the mixing frame 15, the downward extrusion and pushing distance of the jacking rod 14 can be controlled, and thus the compression distance of the sand-blocking filter cloth 11 can be indirectly controlled.

[0031] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sampling mechanism for detecting sediment content in water conservancy, including a support platform (1) and a servo motor (2) installed at the upper end of the support platform (1), and the output end of the servo motor (2) is connected to a sampling cylinder (3). An interception hole (4) is opened on the upper side of the sampling cylinder (3), and a water leakage cover (5) is fixed inside the sampling cylinder (3). A protective bottom cover (6) is arranged at the bottom of the sampling cylinder (3), and a drain pipe (7) is installed on the protective bottom cover (6), characterized in that: A first cylinder (8) is installed at the upper end of the support platform (1), and the telescopic ends of the first cylinder (8) are connected to each other through a guide connecting rod (9) and a closed ring (10). 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). 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).

2. The sampling mechanism for detecting the sediment content in water conservancy 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. The sampling mechanism for detecting the sediment content in water conservancy 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. The sampling mechanism for detecting water conservancy sediment content according to claim 1, characterized in that: The lower end of the sand filter cloth (11) is fixed to the water leakage cover (5), and the upper end of the sand filter cloth (11) is fixed to the movable plate (12). The rod body on the side of the movable plate (12) passes through the water leakage cover (5), and the end of the rod body on the movable plate (12) is connected to the water leakage cover (5) through the auxiliary spring (13).

5. The sampling mechanism for detecting sediment content in water conservancy according to claim 4, characterized in that: The stirring component includes a lifting rod (14) fixed to the upper end of the movable disk (12), the lower end of the lifting rod (14) is fixed to the movable disk (12), a mixing frame (15) is provided above the lifting 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 a 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 to the telescopic end of the second cylinder (19).

6. The sampling mechanism for detecting water conservancy sediment content according to claim 5, characterized in that: The upper end of the lifting rod (14) and the lower end of the mixing frame (15) are both configured as arc structures, and 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).

7. The sampling mechanism for detecting sediment concentration in water conservancy according to claim 6, 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).

8. The sampling mechanism for detecting the sediment content in water conservancy according to claim 7, 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.

9. The sampling mechanism for detecting water conservancy sediment content according to claim 8, 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).

Images