River water quality detection equipment for hydraulic engineering

Abstract

The invention relates to the technical field of water quality detection, and provides river water quality detection equipment for hydraulic engineering, which comprises a floating raft, a mounting seat is mounted on the floating raft, a feeding mechanism and a multi-stage telescopic rod are arranged at the top of the mounting seat, a plurality of sampling barrels are mounted in the feeding mechanism, a plurality of sampling pipes are mounted in the sampling barrels, and the sampling pipes are connected with the multi-stage telescopic rod. A guide block is fixedly connected to the output end of the multi-stage telescopic rod, a sliding block is arranged in the guide block, a connector and a trigger head are fixedly connected to the top of the sliding block, a sampling mechanism is arranged on the mounting base and the guide block, and a transmission mechanism is arranged on the top of the mounting base; the sampling pipes are fed into water areas of different depths through the multi-stage telescopic rod to sample water of different depths, river water of different depths is stored through the multiple sampling pipes, mixing of water of different depths is avoided, sampling of the next time can be conducted after sampling of one time of depth is completed, sampling continuity is improved, and sampling efficiency is improved. And the sampling efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and more specifically, to a river water quality detection device for water conservancy projects. Background Art

[0002] In water conservancy projects, river water quality detection is an important means to ensure the safe operation of water conservancy projects and the sustainable development of the water environment. As a complex water body, the water quality characteristics of rivers often vary with depth, which is mainly due to the combined effects of various factors such as water flow velocity, water depth, riverbed morphology, and aquatic biological activities in the river. Therefore, in order to comprehensively and accurately understand the river water quality status, it is necessary to detect the water at different positions and different depths.

[0003] For the water at different positions and different depths, a large number of sampling containers are required. After taking a water sample once, the sampling container needs to be replaced. Most of the existing detection devices pump water samples through a water pump. When replacing the container, the pipeline connection port needs to be changed, and the process is complex and inefficient.

[0004] At the same time, the internal structure of the water pump is prone to residual water and dirt, and it is easy to mix and contaminate the water sample during sampling, resulting in inaccurate detection results.

[0005] Therefore, the present invention provides a river water quality detection device for water conservancy projects. Summary of the Invention

[0006] The present invention provides a river water quality detection device for water conservancy projects, which solves the problems of difficult water quality detection at different depths and easy pollution in the background art by lowering the sampling cylinder underwater for sampling.

[0007] The technical solution of the present invention is as follows:

[0008] A river water quality detection device for water conservancy projects, comprising: a floating raft, an installation seat is installed on the floating raft, a circular groove one is opened on the installation seat, and an empty groove one is opened on the inner wall of the circular groove one of the installation seat. A feeding mechanism and a multi-stage telescopic rod are arranged on the top of the installation seat. A plurality of sampling cylinders are installed in the feeding mechanism, and one of the sampling cylinders is located at the circular groove one. A plurality of sampling pipes are installed in the sampling cylinder. The output end of the multi-stage telescopic rod is fixedly connected with a guide block, and the guide block extends into the circular groove one and the empty groove one. An empty groove two is opened in the guide block, and a slider is slidably connected through the empty groove two. The top of the slider is fixedly connected with a connection head and a trigger head, and the connection head and the trigger head are respectively located at the circular groove one and the empty groove one. A sampling mechanism is arranged on the installation seat and the guide block, and a transmission mechanism is arranged on the top of the installation seat.

[0009] Preferably, the feeding mechanism includes a mounting ring fixedly connected to the top of the mounting base and an electromagnetic ring mounted on the top of the mounting base. A limiting ring is arranged on the outer side of the electromagnetic ring. The sampling cylinder is located between the mounting ring and the limiting ring. A first annular groove is formed on the inner wall of the mounting ring, and a first gear ring is rotatably connected through the first annular groove. A first clamping groove is formed on the inner wall of the first gear ring. A first clamping block is fixedly connected to the outer wall of the sampling cylinder. The first clamping block is located in the first annular groove and the first clamping groove. A first sliding groove is formed on the inner wall of the mounting ring above the first circular groove, and the first sliding groove communicates with the first annular groove.

[0010] Preferably, a first circular hole, a second circular groove and a frustum groove are formed in the bottom of the sampling cylinder from top to bottom. There are multiple first circular holes. A second circular hole is formed in the bottom of the sampling pipe. The second circular hole corresponds to the first circular hole. A sliding net is slidably connected to the bottom of the sampling pipe. A first spring is installed between the sliding net and the bottom of the sampling pipe. A ball valve is fixedly connected to the center of the sliding net. A valve body matching the ball valve is fixedly connected to the bottom of the sampling pipe at the second circular hole. A second clamping groove is formed between the multiple first circular holes at the bottom of the sampling cylinder.

[0011] Preferably, a second clamping block matching the second clamping groove is fixedly connected to the top of the connecting head. A sealing ring matching the frustum groove is fixedly connected to the outer side of the connecting head. A first conduit is fixedly connected inside the connecting head. One end of the first conduit penetrates to the bottom of the connecting head, and the other end extends out of the top of the connecting head. Multiple flow grooves are formed at the end of the first conduit extending out of the top of the connecting head.

[0012] Preferably, the sampling mechanism includes a second annular groove formed on the inner wall of the first circular groove and a first gear rotatably connected in the mounting base. A second gear ring is rotatably connected in the second annular groove. The second gear ring meshes with a second gear. A first motor for driving the first gear to rotate is installed on the mounting base. A plurality of sliding plates are arranged inside the second gear ring. Adjacent two of the sliding plates are slidably connected. The sampling mechanism further includes a third circular hole formed in the bottom of the guiding block and a turntable rotatably connected to the bottom of the guiding block. The number of the third circular holes is the same as that of the second circular holes, and a second conduit is fixedly connected in the third circular hole. One end of the second conduit penetrates to the bottom of the guiding block, and the other end extends into the first empty groove and penetrates the sliding block. The end of the second conduit penetrating the sliding block is slidably connected to the first conduit. A through hole is formed on the turntable. A filter box is installed on the turntable. The sliding plate close to the center of the first circular groove is fixedly connected to the turntable.

[0013] Preferably, the transmission mechanism includes an incomplete gear and a coupling rotatably connected to the mounting base. A second gear and a third gear are fixedly connected to the outer side of the coupling. The second gear can mesh with the incomplete gear. The third gear passes through the mounting ring and meshes with the first gear ring. A second motor for driving the incomplete gear to rotate is installed on the mounting base.

[0014] Preferably, the transmission mechanism further includes a limiting groove opened on one side of the trigger head and a fixing frame fixedly connected to the mounting seat. The limiting groove is a right trapezoid. The multi-stage telescopic rod is fixedly installed on the fixing frame. A fixing disk is arranged at the bottom of the fixing frame. A gear ring III and a trigger ring are rotatably connected to the outside of the fixing disk. The gear ring III and the trigger ring are fixedly connected. The gear ring III can be meshed with the incomplete gear. The trigger ring is located at the top of the trigger head. An inclined ring slope and a clamping ring are fixedly connected to the bottom of the trigger ring. The cross section of the clamping ring is L-shaped.

[0015] Preferably, a second sliding groove and a third circular groove are opened in the mounting ring. The second sliding groove is located on the side of the first ring groove close to the mounting seat, and the first sliding groove communicates with the second sliding groove. The third circular groove is located on the side of the second sliding groove close to the mounting seat, and the second sliding groove communicates with the third circular groove. A third clamping block is slidably connected in the second sliding groove, and the cross section of the third clamping block is an isosceles trapezoid. A cylinder is slidably connected in the third circular groove. A triangular pushing block is fixedly connected to the top of the cylinder, and the triangular pushing block matches the trapezoidal inclined surface of the third clamping block. A sliding disk is slidably connected to the bottom of the third circular groove. The bottom of the cylinder is rotatably connected to the sliding disk. A second spring is installed between the sliding disk and the bottom of the third circular groove.

[0016] Preferably, a push rod is fixedly connected to the top of the slider. A fourth circular hole is opened in the mounting ring on the side of the third circular groove close to the mounting seat. The inner diameter of the fourth circular hole is larger than the outer diameter of the push rod. Two arc grooves and two vertical grooves are opened on the outside of the cylinder, and the two arc grooves and the two vertical grooves are staggered and connected end to end. A triangular blocking block is arranged in the vertical groove. A fifth circular hole is opened on the inner wall of the third circular groove of the mounting ring, and a limiting pin is slidably connected through the fifth circular hole. A third spring is installed between the limiting pin and the fifth circular hole. The limiting pin is located in the arc groove and the vertical groove.

[0017] Preferably, a fourth spring is installed between the slider and the first empty groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses a multi-stage telescopic rod to send the sampling tube into waters at different depths to realize sampling of water quality at different depths, and stores the river water at different depths through multiple sampling tubes to avoid mixing of water at different depths. During this period, after sampling at one depth is completed, the next sampling can be carried out immediately, increasing the continuity of sampling and greatly improving the sampling efficiency; and by installing a filter box on the turntable to filter impurities in the water, it avoids the influence of solid pollutants such as animal remains in the water on the accuracy of water quality detection.

[0020] 2. The present invention drives the continuous replacement of the sampling cylinder through the drive of the second motor, improves the sampling efficiency, and only needs to control the incomplete gear to rotate one circle to realize the replacement, which is convenient and fast.

[0021] 3. The present invention samples by the pressure of water itself, avoiding water residue caused by using a water pump and improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the detection device of the present invention;

[0023] Figure 2 is a perspective view of part of the detection device of the present invention;

[0024] Figure 3 is a schematic cross-sectional view of the detection device of the present invention;

[0025] Figure 4 is the present invention Figure 3 a partial enlarged view of A in;

[0026] Figure 5 is an internal perspective view of the detection device of the present invention;

[0027] Figure 6 is a cross-sectional perspective view of part of the detection device of the present invention;

[0028] Figure 7 is the present invention Figure 6 a partial enlarged view of B in;

[0029] Figure 8 is a connecting perspective view of the connector and the sampling tube of the present invention;

[0030] Figure 9 is a perspective view of the structure inside the mounting seat of the present invention;

[0031] Figure 10 is a perspective view of the structure on the cylinder of the present invention;

[0032] Figure 11 is a perspective view of the structure on the trigger ring of the present invention.

[0033] In the figure:

[0034] 1. Floating raft; 2. Mounting seat; 21. First circular groove; 22. First empty groove; 3. Feeding mechanism; 31. Mounting ring; 32. Electromagnetic ring; 33. Limiting ring; 34. First annular groove; 35. First gear ring; 36. First clamping groove; 37. First clamping block; 38. First sliding groove; 39. Second sliding groove; 310. Third circular groove; 311. Third clamping block; 312. Cylinder; 313. Triangular pushing block; 314. Fourth circular hole; 315. Arc-shaped groove; 316. Vertical groove; 317. Limiting pin; 318. Sliding disc; 319. Second spring; 320. Triangular stop block; 321. Fifth circular hole; 322. Third spring; 4. Multi-stage telescopic rod; 5. Sampling cylinder; 51. First circular hole; 52. Second circular groove; 53. Frustum groove; 54. Second clamping groove; 6. Sampling tube; 61. Second circular hole; 62. Sliding net; 63. First spring; 64. Ball valve; 65. Valve body; 7. Guide block; 71. Second empty groove; 72. Slide block; 73. Connector; 74. Trigger head; 75. Second clamping block; 76. Sealing ring; 77. First conduit; 78. Flow-through groove; 79. Push rod; 710. Fourth spring; 8. Sampling mechanism; 81. Second annular groove; 82. First gear; 83. Second gear ring; 84. First motor; 85. Slide plate; 86. Third circular hole; 87. Turntable; 88. Second conduit; 89. Through hole; 810. Filter box; 9. Transmission mechanism; 91. Incomplete gear; 92. Second gear; 93. Third gear; 94. Second motor; 95. Limiting groove; 96. Fixed frame; 97. Fixed disc; 98. Third gear ring; 99. Trigger ring; 910. Inclined annular slope; 911. Snap ring; 913. Coupling shaft. Detailed implementation manners

[0035] The following further describes in detail the implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0036] Embodiment 1:

[0037] As Figures 1 - 11As shown in the figure, the present invention provides a river water quality detection device for water conservancy projects, including: a floating raft 1, on which an installation base 2 is installed. A circular groove 21 is provided in the installation base 2, and an empty groove 22 is provided on the inner wall of the circular groove 21. A feeding mechanism 3 and a multi-stage telescopic rod 4 are arranged on the top of the installation base 2. A plurality of sampling cylinders 5 are installed in the feeding mechanism 3, and one of the sampling cylinders 5 is located at the circular groove 21. A plurality of sampling tubes 6 are installed in the sampling cylinder 5. The output end of the multi-stage telescopic rod 4 is fixedly connected with a guide block 7, and the guide block 7 extends into the circular groove 21 and the empty groove 22. An empty groove 71 is provided in the guide block 7, and a slider 72 is slidably connected through the empty groove 71. The top of the slider 72 is fixedly connected with a connecting head 73 and a trigger head 74, and the connecting head 73 and the trigger head 74 are respectively located at the circular groove 21 and the empty groove 22. A sampling mechanism 8 is arranged on the installation base 2 and the guide block 7, and a transmission mechanism 9 is arranged on the top of the installation base 2.

[0038] Place this detection device on the river water surface, and then start the floating raft 1 to drive the detection device to the designated detection position. First, start the multi-stage telescopic rod 4 to drive the guide block 7 to move underwater. The guide block 7 drives the sampling cylinder 5 to move synchronously through the connecting head 73 on the slider 72. Then start the sampling mechanism 8 to open the communication channel between the guide block 7, the connecting head 73 and the sampling tube 6. The river water enters the sampling tube 6 through the underwater pressure. Then drive the sampling cylinder 5 to continue to move downward through the multi-stage telescopic rod 4 to sample the deep river water. During this period, after each sampling is completed, close the sampling channel of this sampling tube 6 through the sampling mechanism 8, and open the sampling channel of another sampling tube 6 when taking the next sample to achieve sampling at different depths; after sampling at one position is completed, drive the floating raft 1 to another position, separate the connecting head 73 from the sampling cylinder 5 through the transmission mechanism 9, then replace the sampling cylinder 5 through the feeding mechanism 3, and then connect the connecting head 73 and the new sampling cylinder 5 through the transmission mechanism 9. Repeat this step to sample the river water at multiple positions and multiple levels, increasing the diversity of water quality detection.

[0039] As Figure 7 、 Figure 8 shown, the bottom of the sampling cylinder 5 is provided with a circular hole 51, a circular groove 52 and a frustum groove 53 from top to bottom. There are a plurality of circular holes 51. The bottom of the sampling tube 6 is provided with a circular hole 61, and the circular hole 61 corresponds to the circular hole 51. A sliding net 62 is slidably connected to the bottom of the sampling tube 6. A first spring 63 is installed between the sliding net 62 and the bottom of the sampling tube 6. The center of the sliding net 62 is fixedly connected with a ball valve 64. A valve body 65 matching the ball valve 64 is fixedly connected to the bottom of the sampling tube 6 at the circular hole 61. A clamping groove 54 is provided between the plurality of circular holes 51 at the bottom of the sampling cylinder 5.

[0040] A second clamping block 75 that matches the second clamping groove 54 is fixedly connected to the top of the connector 73. A sealing ring 76 that matches the frustum groove 53 is fixedly connected to the outside of the connector 73. A first conduit 77 is fixedly connected inside the connector 73. One end of the first conduit 77 penetrates to the bottom of the connector 73, and the other end extends out of the top of the connector 73. Multiple flow grooves 78 are provided at the end of the first conduit 77 that extends out of the top of the connector 73.

[0041] As Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, the sampling mechanism 8 includes a second annular groove 81 formed on the inner wall of the first circular groove 21 and a first gear 82 rotatably connected to the mounting base 2. A second gear ring 83 is rotatably connected in the second annular groove 81. The second gear ring 83 meshes with the second gear 92. A first motor 84 for driving the first gear 82 to rotate is installed on the mounting base 2. A plurality of sliding plates 85 are provided inside the second gear ring 83. Adjacent two sliding plates 85 are slidably connected. The sampling mechanism 8 further includes a third circular hole 86 formed at the bottom of the guide block 7 and a turntable 87 rotatably connected to the bottom of the guide block 7. The number of the third circular holes 86 is the same as that of the second circular holes 61. A second conduit 88 is fixedly connected in the third circular hole 86. One end of the second conduit 88 penetrates to the bottom of the guide block 7, and the other end extends to the first empty groove 22 and penetrates the sliding block 72. The end of the second conduit 88 that penetrates the sliding block 72 is slidably connected to the first conduit 77. A through hole 89 is formed on the turntable 87. A filter box 810 is installed on the turntable 87. The sliding plate 85 close to the center of the first circular groove 21 is fixedly connected to the turntable 87.

[0042] As Figure 8 shown, the head of the second clamping block 75 at the top of the connector 73 is a rubber sphere. One end of the second clamping groove 54 at the bottom of the sampling cylinder 5 is a spherical space. By compressing the rubber sphere at the head of the second clamping block 75 into the spherical space at one end of the second clamping groove 54, the fixation of the connector 73 and the sampling cylinder 5 is realized, and the movement of the sampling cylinder 5 is restricted; As Figures 1 - 3As shown, the sampling tube 5 is moved to the sampling location by the multi-stage telescopic rod 4, during which the guide block 7 drives the multi-stage telescopic rod 4 to extend through the turntable 87, and then the motor 1 84 is started to drive the gear 1 82 to rotate, thereby driving the multiple slides 85 inside the gear ring 2 83 to rotate through the meshing transmission of the gear 1 82 and the gear ring 2 83, and the turntable 87 is driven to rotate a certain angle by the slide 85 fixedly connected to the turntable 87, so that the through hole 89 on the turntable 87 coincides with a circular hole 3 86, and then the river water is pushed into the conduit in the circular hole 3 86 by the underwater pressure, and the river water passes through The water in conduit 2 88 and conduit 1 77 flows into the sampling tube 6 to complete a sampling. Then, the motor 1 84 is started to drive the turntable 87 to rotate a certain angle, so that the through hole 89 on the turntable 87 is staggered with the circular hole 3 86, thereby closing the sampling channel of the sampling tube 6; thereafter, the depth of the sampling tube 5 is gradually increased by the multi-stage telescopic rod 4, and the turntable 87 is driven by the motor 1 84 to rotate the same angle, so that the through hole 89 on the turntable 87 is connected with the circular hole 3 86 at another sampling tube 6, so that water can enter the sampling tube 6, thereby realizing the sampling and storage of water at different depths.

[0043] The detection equipment sends the sampling tube 6 into water areas of different depths through the multi-stage telescopic rod 4 to achieve sampling of water quality at different depths, and stores river water at different depths through multiple sampling tubes 6 to avoid mixing of water at different depths. During this period, the next sampling can be carried out after completing sampling at one depth, which increases the continuity of sampling and greatly improves the sampling efficiency; and by installing a filter box 810 on the turntable 87, impurities in the water are filtered to avoid solid pollutants such as animal remains in the water from entering and causing blockage.

[0044] like Figures 1 - 4 As shown, the feeding mechanism 3 includes a mounting ring 31 fixedly connected to the top of the mounting seat 2 and an electromagnetic ring 32 installed on the top of the mounting seat 2, a limit ring 33 is arranged on the outer side of the electromagnetic ring 32, and the sampling tube 5 is located between the mounting ring 31 and the limit ring 33. An annular groove 34 is provided on the inner wall of the mounting ring 31, and a gear ring 35 is rotatably connected through the annular groove 34. A clamping groove 36 is provided on the inner wall of the gear ring 35, and a clamping block 37 is fixedly connected to the outer wall of the sampling tube 5. The clamping block 37 is located in the annular groove 34 and the clamping groove 36. A sliding groove 38 is provided on the inner wall of the mounting ring 31 above the circular groove 21, and the sliding groove 38 is communicated with the annular groove 34.

[0045] The limiting ring 33 is made of magnet. When the electromagnetic ring 32 is energized, the limiting ring 33 can be fixed, so that the sampling tube 5 can only move between the limiting ring 33 and the mounting ring 31 through the common restriction of the limiting ring 33 and the mounting ring 31.

[0046] like Figures 1 - 2As shown, the transmission mechanism 9 includes an incomplete gear 91 rotatably connected to the mounting base 2 and a coupling shaft 913. A second gear 92 and a third gear 93 are fixedly connected to the outside of the coupling shaft 913. The second gear 92 can mesh with the incomplete gear 91. The third gear 93 passes through the mounting ring 31 and meshes with the first toothed ring 35. A second motor 94 for driving the incomplete gear 91 to rotate is installed on the mounting base 2.

[0047] As Figures 1 - 4 、 Figure 11 shown, the transmission mechanism 9 further includes a limit groove 95 opened on one side of the trigger head 74 and a fixing bracket 96 fixedly connected to the mounting base 2. The limit groove 95 is a right trapezoid. The multi-stage telescopic rod 4 is fixedly installed on the fixing bracket 96. A fixing disk 97 is provided at the bottom of the fixing bracket 96. A third toothed ring 98 and a trigger ring 99 are rotatably connected to the outside of the fixing disk 97. The third toothed ring 98 and the trigger ring 99 are fixedly connected. The third toothed ring 98 can mesh with the incomplete gear 91. The trigger ring 99 is located at the top of the trigger head 74. An inclined ring slope 910 and a snap ring 911 are fixedly connected to the bottom of the trigger ring 99. The cross-section of the snap ring 911 is L-shaped.

[0048] As Figure 3 、 Figure 4 、 Figure 6 、 Figure 8 、 Figure 9 shown, a second chute 39 and a third circular groove 310 are opened in the mounting ring 31. The second chute 39 is located on the side of the first annular groove 34 close to the mounting base 2, and the first chute 38 communicates with the second chute 39. The third circular groove 310 is located on the side of the second chute 39 close to the mounting base 2, and the second chute 39 communicates with the third circular groove 310. A third block 311 is slidably connected in the second chute 39, and the cross-section of the third block 311 is an isosceles trapezoid. A cylinder 312 is slidably connected in the third circular groove 310. A triangular push block 313 is fixedly connected to the top of the cylinder 312, and the triangular push block 313 matches the trapezoidal inclined surface of the third block 311. A sliding disk 318 is slidably connected to the bottom of the third circular groove 310. The bottom of the cylinder 312 is rotatably connected to the sliding disk 318. A second spring 319 is installed between the sliding disk 318 and the bottom of the third circular groove 310.

[0049] A push rod 79 is fixedly connected to the top of the slider 72. A fourth circular hole 314 is opened in the mounting ring 31 on the side of the third circular groove 310 close to the mounting base 2. The inner diameter of the fourth circular hole 314 is larger than the outer diameter of the push rod 79. Two arc-shaped grooves 315 and two vertical grooves 316 are opened on the outside of the cylinder 312, and the two arc-shaped grooves 315 and the two vertical grooves 316 are staggered and connected end to end. A triangular stop block 320 is arranged in the vertical groove 316. A fifth circular hole 321 is opened on the inner wall of the third circular groove 310 of the mounting ring 31, and a limit pin 317 is slidably connected through the fifth circular hole 321. A third spring 322 is installed between the limit pin 317 and the fifth circular hole 321. The limit pin 317 is located in the arc-shaped groove 315 and the vertical groove 316.

[0050] After the water sampling at a position is completed, the sampling tube 6 is retracted through the multi-stage telescopic rod 4, as Figure 4 , Figure 6 , Figure 8 shown. During the retraction process, the sampling cylinder 5 passes through the first circular groove 21, and the first clamping block 37 on the sampling cylinder 5 slides from the first sliding groove 38 onto the first clamping groove 36 on the first gear ring 35 and returns to its original position in the mounting ring 31. At the same time, the push rod 79 at the top of the slider 72 passes through the fourth circular hole 314 in the mounting ring 31 and inserts into the third circular groove 310, and pushes the cylinder 312 to move upward.

[0051] It should be noted that, as Figure 10 shown, since the bottom of the cylinder 312 is rotatably connected to the sliding disk 318, and a second spring 319 is installed between the sliding disk 318 and the bottom of the third circular groove 310. When the guide block 7 moves downward into the water, the push rod 79 moves out of the third circular groove 310. Without the support of the push rod 79, the cylinder 312 and the sliding disk 318 move downward under the elastic force of the second spring 319. Also, since two arc-shaped grooves 315 and two vertical grooves 316 that are staggered and connected end to end are formed on the outer side of the cylinder 312, and are limited by the limit pins 317 fixedly connected to the inner wall of the third circular groove 310. When the cylinder 312 moves downward, the arc-shaped groove 315 on the cylinder 312 is blocked by the limit pin 317 and rotates, causing the cylinder 312 to rotate 180°, so that the triangular push block 313 at the top of the cylinder 312 rotates 180° along with the cylinder 312, from the left side of the third clamping block 311 to the lower right side of the third clamping block 311.

[0052] During the process of the push rod 79 inserting into the third circular groove 310 and pushing the cylinder 312 upward, the vertical groove 316 in the cylinder 312 moves on the limit pin 317, so that the triangular push block 313 on the cylinder 312 pushes the right side of the third clamping block 311 and pushes the third clamping block 311 below the first clamping block 37, restricting the sampling cylinder 5 from moving downward along the first sliding groove 38 through the first clamping block 37, providing support for replacing the sampling cylinder 5 and disconnecting the connector 73 from the sampling cylinder 5.

[0053] It should be noted that during the process of the limit pin 317 moving from the vertical groove 316 into the arc-shaped groove 315, the limit pin 317 first moves from the vertical groove 316 onto the triangular stop block 320, causing the limit pin 317 to slide into the fifth circular hole 321 and compress the third spring 322, and then moves from the inclined surface of the triangular stop block 320 into the arc-shaped groove 315, so that the limit pin 317 is pushed by the third spring 322 into the arc-shaped groove 315 and moves along the arc-shaped groove 315 under the restriction of the triangular stop block 320, so that the limit pin 317 can continuously move along the two arc-shaped grooves 315 and the vertical groove 316.

[0054] As Figures 1 - 4As shown, start the second motor 94 to drive the incomplete gear 91 to rotate. Through the meshing and transmission between the incomplete gear 91 and the third gear ring 98, the trigger ring 99 is driven to rotate, so that the inclined ring slope 910 at the bottom of the trigger ring 99 squeezes the trigger head 74 from high to low, thereby causing the trigger head 74 to gradually move downward, driving the slider 72 and the connecting head 73 to slide downward in the second empty slot 71, and further causing the second latch 75 on the connecting head 73 to be pulled out from the second card slot 54.

[0055] At the same time, the first conduit 77 moves out of the second round hole 61. The ball valve 64 loses the support of the first conduit 77 and moves downward under the elastic force of the first spring 63 to cooperate with the valve body 65 to seal the sampling cylinder 5.

[0056] It should be noted that during the process of the trigger ring 99 pushing the slider 72 downward, the push rod 79 on the slider 72 moves out of the third round slot 310. The same as the above process, the cylinder 312 rotates 180° again, causing the triangular push block 313 to rotate to the lower left. When the push rod 79 enters the third round slot 310 again, it can push the third latch 311 to move to the other side, enabling the sampling cylinder 5 to move downward along the first sliding slot 38.

[0057] Continue to drive the incomplete gear 91 to mesh with the second gear 92 through the second motor 94. Since the second gear 92 and the third gear 93 are connected by a coupling shaft 913 and the third gear 93 meshes with the first gear ring 35, the incomplete gear 91 drives the first gear ring 35 to rotate. The first gear ring 35 drives the sampling cylinder 5 to rotate through the first card slot 36, rotates the sampled sampling cylinder 5 to one side, and rotates the unsampled sampling cylinder 5 above the first round slot 21; then continue to drive the incomplete gear 91 to mesh with the third gear ring 98 through the second motor 94 to drive the trigger ring 99 to rotate, so that one end of the L-shaped retaining ring 911 at the bottom of the trigger ring 99 enters the limit slot 95 on one side of the trigger head 74. As the trigger ring 99 rotates, the limit slot 95 on the trigger head 74 is blocked by the retaining ring 911 and gradually moves upward, thereby driving the slider 72 and the connecting head 73 to move upward.

[0058] During the process of the slider 72 moving upward, the push rod 79 on the slider 72 enters the third round slot 310 and pushes the cylinder 312 to move upward. Because when the push rod 79 moves out of the third round slot 310, the cylinder 312 has rotated 180°, so pushing the cylinder 312 upward at this time can cause the triangular push block 313 at the top of the cylinder 312 to push the third latch 311 into the second sliding slot 39, thereby releasing the restriction of the third latch 311 on the sampling cylinder 5 and the first latch 37, facilitating the connecting head 73 to drive a new sampling cylinder 5 to take water samples.

[0059] As Figures 7 - 8As shown, under the push of the clamping ring 911, the connector 73 and the trigger head 74 move upward synchronously, so that the first catheter 77 enters the sampling cylinder 5 from the first round hole 51 and the second round hole 61, and pushes the ball valve 64 upward to open the sampling channel of the sampling pipe 6. Water can enter the sampling pipe 6 from the flow groove 78 on the first catheter 77 and the sliding net 62. At the same time, the second clamping block 75 on the connector 73 is clamped into the second clamping groove 54 at the bottom of the sampling cylinder 5 to complete the fixation. At the same time, the sealing ring 76 outside the connector 73 enters the frustum groove 53 and fits tightly to seal the sampling pipe 6, preventing water in the non-sampling area from entering the sampling cylinder 5 and contacting the water sample in the sampling pipe 6, thereby reducing the accuracy of water sample detection.

[0060] After the sampling is completed, the electromagnetic ring 32 is powered off, and the limiting ring 33 outside the electromagnetic ring 32 is removed, so as to take out the sampling cylinder 5 between the limiting ring 33 and the mounting ring 31, and perform water quality detection on the water in the sampling pipe 6.

[0061] Driven by the second motor 94, the continuous replacement of the sampling cylinder 5 is driven, improving the sampling efficiency. It only needs to control the incomplete gear 91 to rotate one circle to achieve the replacement, which is convenient and fast.

[0062] A fourth spring 710 is installed between the slider 72 and the first empty groove 22.

[0063] The fourth spring 710 provides support for the slider 72 and keeps the slider 72 stable. When the guide block 7 enters the water, the fourth spring 710 gives an upward thrust to the slider 72, and cooperates with the top of the guide block 7 to limit the movement of the slider 72, and at the same time limits the movement of the sampling cylinder 5, so that it can sample stably; and when the sampling cylinder 5 is moved upward, the sampling cylinder 5 can be reset stably.

[0064] The embodiments of the present invention are given for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A river water quality detection device for water conservancy projects, comprising: A floating raft (1), characterized in that: a mounting seat (2) is installed on the floating raft (1), a circular groove (21) is opened on the mounting seat (2), and an empty groove (22) is opened on the inner wall of the circular groove (21) of the mounting seat (2), a feeding mechanism (3) and a multi-stage telescopic rod (4) are arranged on the top of the mounting seat (2), a plurality of sampling barrels (5) are installed in the feeding mechanism (3), one of the sampling barrels (5) is located at the circular groove (21), a plurality of sampling tubes (6) are installed in the sampling barrel (5), and the output end of the multi-stage telescopic rod (4) is fixedly connected with A guide block (7) is provided, and the guide block (7) extends into the circular groove (21) and the empty groove (22). An empty groove (71) is provided in the guide block (7), and a slider (72) is slidably connected to the empty groove (71). A connecting head (73) and a trigger head (74) are fixedly connected to the top of the slider (72), and the connecting head (73) and the trigger head (74) are respectively located at the circular groove (21) and the empty groove (22). A sampling mechanism (8) is provided on the mounting seat (2) and the guide block (7), and a transmission mechanism (9) is provided on the top of the mounting seat (2).

2. The river water quality detection equipment for water conservancy projects according to claim 1, characterized in that: The feeding mechanism (3) comprises a mounting ring (31) fixedly connected to the top of the mounting seat (2) and an electromagnetic ring (32) mounted on the top of the mounting seat (2); a limit ring (33) is arranged on the outer side of the electromagnetic ring (32); the sampling tube (5) is located between the mounting ring (31) and the limit ring (33); an annular groove (34) is provided on the inner wall of the mounting ring (31); and a gear ring (35) is rotatably connected through the annular groove (34); a clamping groove (36) is provided on the inner wall of the gear ring (35); a clamping block (37) is fixedly connected to the outer wall of the sampling tube (5); the clamping block (37) is located in the annular groove (34) and the clamping groove (36); a sliding groove (38) is provided on the inner wall of the mounting ring (31) above the circular groove (21); and the sliding groove (38) is communicated with the annular groove (34).

3. The river water quality detection equipment for water conservancy projects according to claim 1, characterized in that: The bottom of the sampling tube (5) is provided with a circular hole 1 (51), a circular groove 2 (52) and a truncated cone groove (53) from top to bottom, and the circular hole 1 (51) is provided with a plurality of circular holes. The bottom of the sampling tube (6) is provided with a circular hole 2 (61), and the circular hole 2 (61) corresponds to the circular hole 1 (51). The bottom of the sampling tube (6) is slidably connected with a sliding net (62), and a spring 1 (63) is installed between the sliding net (62) and the bottom of the sampling tube (6). The center of the sliding net (62) is fixedly connected with a ball valve (64). The bottom of the sampling tube (6) is fixedly connected with a valve body (65) matching the ball valve (64) at the circular hole 2 (61). The bottom of the sampling tube (5) is provided with a clamping groove 2 (54) between the plurality of circular holes 1 (51).

4. The river water quality detection equipment for hydraulic engineering as claimed in claim 3, characterized in that: The top of the connector (73) is fixedly connected with a second clamping block (75) matching with the second clamping slot (54), the outer side of the connector (73) is fixedly connected with a sealing ring (76) matching with the truncated cone slot (53), the inside of the connector (73) is fixedly connected with a first conduit (77), one end of the first conduit (77) passes through the bottom of the connector (73), and the other end extends out of the top of the connector (73), and a plurality of flow slots (78) are provided at one end of the first conduit (77) extending out of the top of the connector (73).

5. The river water quality detection equipment for hydraulic engineering as claimed in claim 4, characterized in that: The sampling mechanism (8) comprises an annular groove (81) formed on the inner wall of the circular groove (21) and a gear (82) rotatably connected to the mounting seat (2); a gear ring (83) rotatably connected to the annular groove (81); the gear ring (83) meshes with the gear (82); a motor (84) for driving the gear (82) to rotate is mounted on the mounting seat (2); a plurality of slide plates (85) are arranged on the inner side of the gear ring (83); two adjacent slide plates (85) are slidably connected to each other; the sampling mechanism (8) further comprises a circular hole (86) formed on the bottom of the guide block (7) and a gear ring (83) rotatably connected to the guide block. (7) a rotating disk (87) at the bottom, the number of the circular holes (86) being the same as the number of the circular holes (61), and the circular holes (86) being fixedly connected with the conduit (88), one end of the conduit (88) passing through the bottom of the guide block (7), and the other end extending to the empty slot (22) and passing through the slider (72), and one end of the conduit (88) passing through the slider (72) being slidably connected with the conduit (77), the rotating disk (87) being provided with a through hole (89), the rotating disk (87) being provided with a filter box (810), and the slide plate (85) near the center of the circular slot (21) being fixedly connected with the rotating disk (87).

6. The river water quality detection equipment for hydraulic engineering as claimed in claim 2, characterized in that: The transmission mechanism (9) comprises an incomplete gear (91) and a connecting shaft (913) rotatably connected to a mounting seat (2); a second gear (92) and a third gear (93) are fixedly connected to the outer side of the connecting shaft (913); the second gear (92) can mesh with the incomplete gear (91); the third gear (93) passes through a mounting ring (31) and meshes with a first gear ring (35); and a second motor (94) for driving the incomplete gear (91) to rotate is mounted on the mounting seat (2).

7. The river water quality detection equipment for hydraulic engineering as claimed in claim 6, characterized in that: The transmission mechanism (9) further comprises a limit groove (95) provided on one side of the trigger head (74) and a fixing frame (96) fixedly connected to the mounting seat (2); the limit groove (95) is a right-angled trapezoid; the multi-stage telescopic rod (4) is fixedly mounted on the fixing frame (96); a fixing plate (97) is arranged at the bottom of the fixing frame (96); a gear ring three (98) and a trigger ring (99) are rotatably connected to the outer side of the fixing plate (97); the gear ring three (98) and the trigger ring (99) are fixedly connected; the gear ring three (98) can mesh with the incomplete gear (91); the trigger ring (99) is located at the top of the trigger head (74); a beveled ring slope (910) and a clamping ring (911) are fixedly connected to the bottom of the trigger ring (99); the clamping ring (911) has an L-shaped cross section.

8. The river water quality detection equipment for hydraulic engineering as claimed in claim 2, characterized in that: The mounting ring (31) is provided with a second slide groove (39) and a third circular groove (310), wherein the second slide groove (39) is located on a side of the first circular groove (34) close to the mounting seat (2), and the first slide groove (38) is communicated with the second slide groove (39), and the third circular groove (310) is located on a side of the second slide groove (39) close to the mounting seat (2), and the second slide groove (39) is communicated with the third circular groove (310), and a third block (311) is slidably connected in the second slide groove (39), and the cross section of the third block (311) is The circular groove (310) is an isosceles trapezoid. A cylinder (312) is slidably connected inside the circular groove (310). A triangular push block (313) is fixedly connected to the top of the cylinder (312). The triangular push block (313) matches the trapezoidal inclined surface of the clamping block (311). A sliding disk (318) is slidably connected to the bottom of the circular groove (310). The bottom of the cylinder (312) is rotatably connected to the sliding disk (318). A spring (319) is installed between the sliding disk (318) and the bottom of the circular groove (310).

9. The river water quality detection equipment for hydraulic engineering as claimed in claim 8, characterized in that: The top of the slider (72) is fixedly connected with a push rod (79); the mounting ring (31) is provided with a circular hole (314) on one side of the circular groove (310) close to the mounting seat (2); the inner diameter of the circular hole (314) is larger than the outer diameter of the push rod (79); the outer side of the cylinder (312) is provided with two arc grooves (315) and two vertical grooves (316); and the two arc grooves (315) and the two vertical grooves (316) are staggered head to tail. The vertical groove (316) is provided with a triangular stopper (320); the mounting ring (31) is provided with a circular hole (321) on the inner wall of the circular groove (310); and a limit pin (317) is slidably connected through the circular hole (321); a spring (322) is installed between the limit pin (317) and the circular hole (321); and the limit pin (317) is located in the arc groove (315) and the vertical groove (316).

10. The river water quality detection equipment for water conservancy projects according to claim 1, characterized in that: A spring four (710) is installed between the slider (72) and the empty slot one (22).

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