River channel riverbed depth measuring device
By designing a device for the deep measurement of the river bed, the combined structure of the combined structure of the installation rack and the supporting rod is used to solve the problem of decreased accuracy decreased by the offset of pull -up ropes during the deep hammer measurement process of the traditional handheld measurement deep hammer measurement process. , Achieve higher measurement accuracy.
Patent Information
- Application Number
- CN202411585683.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2044-11-08
AI Technical Summary
Traditional handheld depth-sounding hammers are prone to draw rope offset when measuring the depth of the riverbed, resulting in a decrease in measurement accuracy.
The deep measurement device of the river bed is designed, which adopts a combined structure of installation racks, closing wheels, rope rope and support rods. Through the cooperation of the supporting rod, the installation rack and line wheel are fixed on the edge of the measured ship to ensure that ensure that The pull rope is not easy to offset during the depth hammer sinking process.
Effectively improve the measurement accuracy of deep hammer, ensure the stability of the tape rope in the measurement process, reduce artificial errors, and improve the accuracy of the measurement results.
Smart Images

Figure CN119374450A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of waterway detection equipment, and in particular to a riverbed depth measuring device. Background Art
[0002] As a traditional device for measuring the depth of riverbed, the sounding hammer is still widely used in small-scale sounding in shallow water areas with a depth of 30-60 meters due to its low cost and ease of use.
[0003] During the use of the depth sounding hammer, the depth sounding hammer needs to be placed vertically in the water and then sink to the bottom naturally. Common depth sounding hammers are usually held by testers for depth measurement. During the detection process, since it is hand-held, the pull rope may be offset during the lowering of the depth sounding hammer, resulting in a decrease in the accuracy of the final measured result. Summary of the invention
[0004] In order to solve the problem that when a traditional handheld sounding hammer is used to measure the depth of a riverbed, the pull rope may deviate during the measurement process, resulting in low accuracy, the present application provides a riverbed depth measuring device.
[0005] The present application provides a riverbed depth measuring device that adopts the following technical solution: A riverbed depth measuring device comprises a mounting frame, a sounding hammer, a pull rope and a take-up wheel, the pull rope is wound around the take-up wheel, the sounding hammer is connected to one end of the pull rope, the take-up wheel is rotatably mounted on the mounting frame, a first support rod is arranged on the mounting frame, the axis of the take-up wheel is perpendicular to the axis of the first support rod, a second support rod is slidably mounted on the first support rod, the axis of the second support rod is perpendicular to the axis of the first support rod, a third support rod is slidably mounted on the second support rod, the third support rod is parallel to the first support rod, a first fixing piece is arranged on the first support rod to fix the second support rod, a second fixing piece is arranged on the second support rod to fix the third support rod, and a horizontal mechanism is also arranged on the mounting frame, and the horizontal mechanism is used to keep the axis of the take-up wheel horizontal.
[0006] Through the above technical solution, the mounting frame and the take-up wheel are fixed on the edge of the survey ship through the mutual cooperation between the first support rod, the second support rod and the third support rod, so that during the sinking process of the depth hammer, the pull rope is not easily deviated, and the measurement result of the depth hammer is more accurate.
[0007] Optionally, the first fixing member includes a first slider slidably mounted on the first support rod, a first fixing bolt is threadedly mounted on the first slider, after the first fixing bolt is tightened, one end of the first fixing bolt presses against the first support rod, and the second support rod is mounted on the first slider, the second fixing member includes a second slider slidably mounted on the second support rod, a second fixing bolt is threadedly mounted on the second slider, after the second fixing bolt is tightened, one end of the second fixing bolt passes through the second slider and presses against the second support rod, and the third support rod is mounted on the second slider.
[0008] Optionally, a first connecting hole is provided on the first sliding block, one end of the second support rod slides through the first connecting hole and is slidably connected to the first sliding block, a tightening nut is threadedly installed on the end of the second support rod passing through the first connecting hole, a second connecting hole is provided on the second sliding block, one end of the third support rod slides through the second connecting hole, and a third fixing bolt is also threadedly installed on the second sliding block. After tightening the third fixing bolt, one end of the third fixing bolt passes through the second sliding block and presses against the side wall of the third support rod.
[0009] Optionally, the cross-sections of the first support rod, the second support rod and the third support rod are all circular, and a sliding surface is provided on the side walls of the first support rod, the second support rod and the third support rod, the sliding surface is rectangular and is respectively arranged along the axial direction of the first support rod, the second support rod and the third support rod, and the first fixing bolt, the second fixing bolt and the third fixing bolt are all pressed against the corresponding sliding surfaces after being tightened.
[0010] The sliding surface not only limits the rotation of the first support rod, the second support rod and the third support rod, but also expands the abutment area after the first fixing bolt and the second fixing bolt are tightened, so that the fixing effect of the first fixing bolt and the second fixing bolt is better.
[0011] Optionally, the mounting bracket sliding sleeve is arranged on the first support rod, and the horizontal mechanism includes a mounting plate threadedly mounted on the first support rod, the plate surface of the mounting plate is perpendicular to the axis of the first support rod, and two rotating shafts are arranged on the mounting plate, the axis of the rotating shaft is parallel to the axis of the first support rod, and two horizontal rods are rotatably mounted on the rotating shaft, and a fixing nut is threadedly mounted on one end of the rotating shaft. After tightening the fixing nut, the fixing nut pushes the horizontal rod to press against the mounting plate, and the length direction of the horizontal rod is parallel to the plate surface of the mounting plate, and an adjusting bolt is threadedly mounted on the end of the horizontal rod away from the mounting plate, the axis of the adjusting bolt is parallel to the axis of the first support rod, and a locking nut is threadedly mounted on one end of the first support rod passing through the mounting bracket, and the locking nut presses against the mounting bracket, and a level ruler is also arranged on the mounting bracket.
[0012] Optionally, the first support rod is defined as being placed vertically, the adjusting bolt is also vertical, and the lower end of the adjusting bolt is conical.
[0013] Optionally, an adjusting wheel is provided on the mounting frame, and an adjusting block is slidably installed on the mounting frames on both sides of the adjusting wheel, and the sliding direction of the adjusting block is parallel to the axis of the first support rod, and the adjusting wheel is rotatably installed on the two adjusting blocks, and the first support rod is defined as being placed vertically, and a detection spring is provided on the bottom wall of the adjusting block, and a pressure switch is installed on the frame, the upper end of the detection spring is pressed against the bottom wall of the adjusting block, and the lower end of the detection spring is pressed against the pressure switch, the pull rope starts from the take-up wheel and passes around the adjusting wheel and then extends vertically downward, the height of the upper side of the adjusting wheel is higher than the height of the upper side of the take-up wheel, and the elastic force generated by the compression of the detection spring is less than the pulling force of the depth hammer and the pull rope on the adjusting wheel, and a reduction motor is also installed on the frame, and the reduction motor is used to drive the take-up wheel to rotate, and the reduction motor is electrically connected to the pressure switch.
[0014] Optionally, two slide grooves are provided on the frame, and the cross-section of the slide groove is T-shaped. The two adjustment blocks are respectively slidably installed in the T-shaped horizontal sections of the two slide grooves, and the two ends of the mounting axis of the adjustment wheel respectively pass through the T-shaped vertical sections of the two slide grooves and are rotatably connected to the adjustment blocks. The detection spring and the pressure switch are both installed in the T-shaped horizontal section of the slide groove.
[0015] Optionally, the first support rod is defined as vertical, a first pressure block is provided on the sliding sleeve at the lower end of the first support rod, a second pressure block is provided on the sliding sleeve at the lower end of the third support rod, and the first pressure block and the third pressure block are both made of materials with a high friction coefficient.
[0016] To summarize, in the present application, the mounting frame and the take-up wheel are fixed on the edge of the ship through the cooperation between the first support rod, the second support rod and the third support rod. When the ship stops, the position of the mounting frame and the take-up wheel fixed on the edge of the ship is also stationary, so that the pull rope is not easy to deviate during the sinking of the depth hammer. At the same time, when the depth hammer touches the bottom, the pressure of the depth hammer and the pull rope on the detection spring is reduced, the detection spring rebounds, and the pressure switch monitors the pressure reduction, thereby stopping the reduction motor, and the reduction motor stops the rotation of the take-up wheel, and the release of the pull rope stops more timely, so that the release amount of the pull rope is closer to the actual river depth, and the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application from a top view angle.
[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application from an upward viewing angle.
[0019] Figure 3 It is a cross-sectional view of the mounting frame at the adjustment block of the present application.
[0020] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.
[0021] 1. Mounting bracket; 11. Pull rope; 12. Take-up wheel; 13. Adjusting wheel; 14. Adjusting block; 15. Detection spring; 16. Pressure switch; 17. Gear motor; 18. Slide groove; 19. Level ruler; 2. Depth hammer; 3. First support rod; 31. Locking nut; 32. First pressure block; 4. Second support rod; 41. Tightening nut; 5. Third support rod; 51. Second pressure block; 6. First fixing member; 61. First slider; 611. First connecting hole; 62. First fixing bolt; 7. Second fixing member; 71. Second slider; 711. Second connecting hole; 712. Third fixing bolt; 72. Second fixing bolt; 8. Horizontal mechanism; 81. Mounting plate; 82. Rotating shaft; 83. Horizontal rod; 84. Fixing nut; 85. Adjusting bolt; 9. Sliding surface. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1-3 This application is described in further detail.
[0023] The present application embodiment discloses a riverbed depth measuring device, referring to Figure 1 and Figure 2, including a mounting frame 1 and a first support rod 3, the first support rod 3 is vertical, and the mounting frame 1 is vertically sleeved on the first support rod 3. A horizontal mechanism 8 is also arranged on the mounting frame 1, and the horizontal mechanism 8 includes a mounting plate 81, the mounting plate 81 is threadedly mounted on the first support rod 3, and the bottom wall of the mounting frame 1 is tightly pressed against the top wall of the mounting plate 81, and a locking nut 31 is threadedly mounted on one end of the first support rod 3 passing through the mounting plate 81, and the locking nut 31 is tightly pressed against the top wall of the mounting frame 1, and the mounting frame 1 is fixed on the first support rod 3 by the mounting plate 81 and the locking nut 31, and the position can be adjusted on the first support rod 3 more conveniently.
[0024] Reference Figure 1 and Figure 2 A second support rod 4 is arranged on the first support rod 3, and a third support rod 5 is arranged on the second support rod 4. The cross-sections of the first support rod 3, the second support rod 4 and the third support rod 5 are all circular, and a sliding surface 9 is arranged on the side walls of the first support rod 3, the second support rod 4 and the third support rod 5. The sliding surface 9 is rectangular and extends along the axial direction of the first support rod 3. The sliding surface 9 penetrates both end surfaces of the first support rod 3, and the sliding surfaces 9 of the second support rod 4 and the third support rod 5 are arranged in the same way.
[0025] Reference Figure 1 and Figure 2 The first support rod 3 is perpendicular to the second support rod 4 , and the axis of the second support rod 4 is parallel to the sliding surface 9 of the first support rod 3 , and the third support rod 5 is parallel to the first support rod 3 .
[0026] Reference Figure 1 and Figure 2 A first fixing member 6 is provided on the first support rod 3. The first fixing member 6 includes a first slider 61 slidably mounted on the first support rod 3. A first connecting hole 611 is penetrated through the first slider 61 and is slidably matched with the second support rod 4. The axis of the first connecting hole 611 is perpendicular to the axis of the first support rod 3 and parallel to the sliding surface 9 on the first support rod 3. A first fixing bolt 62 is also threadedly mounted on the first slider 61. After tightening the first fixing bolt 62, one end of the first fixing bolt 62 passes through the first slider 61 and presses against the sliding surface 9 of the first support rod 3, so that the first slider 61 and the second support rod 4 thereon are fixed to the first support rod 3 along the axis direction of the first support rod 3.
[0027] Reference Figure 1 and Figure 2The second support rod 4 is slidably mounted in the first connection hole 611. A second fixing member 7 is provided on the second support rod 4. The second fixing member 7 includes a second slider 71 slidably mounted on the second support rod 4. A second connection hole 711 slidably matched with the third support rod 5 is penetrated through the second slider 71. The third support rod 5 is slidably mounted in the second connection hole 711. A third fixing bolt 712 is also threadedly mounted on the second slider 71. After the third fixing bolt 712 is tightened, one end of the third fixing bolt 712 passes through the second slider 71 and presses against the sliding surface 9 of the third support rod 5.
[0028] Reference Figure 1 and Figure 2 A tightening nut 41 is threadedly installed on one end of the second support rod 4 passing through the first connecting hole 611, a first pressure block 32 made of rubber is sleeved on the first support rod 3, and a second pressure block 51 made of rubber is sleeved on the third support rod 5. After adjusting the positions of the mounting frame 1 and the first support rod 3, the second support rod 4, and the third support rod 5 by sliding the mounting frame 1, the first slider 61 and the second slider 71, tighten the locking nut 31 and the mounting plate 81 to fix the mounting frame 1, tighten the first fixing bolt 62 to fix the first slider 61 on the first support rod 3, tighten the third fixing bolt 712 to fix the third support rod 5 on the second slider 71, tighten the second fixing bolt 72 to fix the second slider 71 on the second support rod 4, and then the mounting frame 1 is erected on the edge of the ship through the first support rod 3, the second support rod 4, and the third support rod 5. After tightening the tightening nut 41, the first support rod 3 and the third support rod 5 are clamped on the edge of the ship by the first pressure block 32 and the second pressure block 51.
[0029] Reference Figure 1 and Figure 2 , and the horizontal mechanism 8 also includes two horizontal rods 83. A rotating shaft 82 is integrally provided on the mounting plate 81 on both sides of the first support rod 3. One end of the two horizontal rods 83 is respectively mounted on the two rotating shafts 82. A fixing nut 84 is also threadedly mounted on the two rotating shafts 82. After the fixing nut 84 is tightened, the horizontal rod 83 is pushed against the mounting plate 81. An adjusting wheel 13 bolt is threadedly mounted on the end of the horizontal rod 83 away from the mounting plate 81. The adjusting bolt 85 is parallel to the first support rod 3, and the lower end of the adjusting bolt 85 is tapered.
[0030] Reference Figure 1 and Figure 2A level ruler 19 is fixedly mounted on the mounting frame 1. After the mounting frame 1 is clamped and fixed on the edge of the boat, the horizontal rod 83 is rotated and adjusted until the adjusting bolt 85 is located above the edge of the boat, and then the adjusting bolt 85 is rotated until the lower end of the adjusting bolt 85 is pressed against the top wall of the edge of the boat, and then the two adjusting bolts 85 are screwed by observing the level ruler 19 to adjust the mounting frame 1 to the horizontal and the first support rod 3 to the vertical.
[0031] Reference Figure 1 and Figure 2 A take-up wheel 12 and an adjusting wheel 13 are rotatably mounted on the mounting frame 1. The axes of the take-up wheel 12 and the adjusting wheel 13 are perpendicular to the axis of the first support rod 3, and the axes of the take-up wheel 12 and the adjusting wheel 13 are perpendicular to the sliding surface 9 of the first support rod 3. The take-up wheel 12 and the adjusting wheel 13 are located on the same straight line in the horizontal direction, and the upper side of the take-up wheel 12 is lower than the upper side of the adjusting wheel 13 in the vertical direction. A pull rope 11 is wound around the take-up wheel 12, one end of the pull rope 11 extends from the take-up wheel 12, passes around the adjusting wheel 13, and then extends vertically downward. A depth hammer 2 is fixedly connected to the lower end of the vertical section of the pull rope 11.
[0032] Reference Figure 1 and Figure 3 A slide groove 18 is provided on the mounting frame 1 at both ends of the axis of the adjusting wheel 13. The cross section of the slide groove 18 is T-shaped, and the length direction of the slide groove 18 is vertical. An adjusting block 14 is slidably installed in the T-shaped horizontal section of the slide groove 18, and a pressure switch 16 is fixedly installed on the bottom wall of the T-shaped horizontal section of the slide groove 18. A detection spring 15 is arranged between the pressure switch 16 and the adjusting block 14, and the two ends of the detection spring 15 are respectively pressed against the top wall of the pressure switch 16 and the bottom wall of the adjusting block 14. The two ends of the mounting shaft of the adjusting wheel 13 pass through the two slide grooves 18 and are rotatably connected to the two adjusting blocks 14. The elastic force of the detection spring 15 is less than the weight of the sounding hammer 2.
[0033] Reference Figure 1 and Figure 3A reduction motor 17 is fixedly mounted on the mounting frame 1. The output shaft of the reduction motor 17 is coaxially connected with the take-up wheel 12. The take-up wheel 12 is driven to rotate by the reduction motor 17. At the same time, the reduction motor 17 is electrically connected to the pressure switch 16. The take-up wheel 12 is driven to rotate and release the line by the reduction motor 17. When the sounding hammer 2 is sinking, the weight of the sounding hammer 2 will pull the adjusting wheel 13 down, so that the detection spring 15 presses the pressure switch 16, the pressure switch 16 is closed, and the reduction motor 17 continues to work. When the sounding hammer 2 touches the bottom, the detection spring 15 rebounds, the pressure switch 16 does not get enough pressure and is disconnected, the reduction motor 17 stops, and then the take-up wheel 12 stops rotating and stops releasing the line. At this time, the length of the pull rope 11 released is the depth of the riverbed. Due to the monitoring by the detection spring 15, compared with manual observation and then stopping the release, the release is stopped by the cooperation between the pressure switch 16 and the reduction motor 17. The release is stopped in a timely manner, and the overall test accuracy is high.
[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A riverbed depth measuring device, comprising a mounting frame (1), a sounding hammer (2), a pull rope (11) and a take-up wheel (12), wherein the pull rope (11) is wound around the take-up wheel (12), the sounding hammer (2) is connected to one end of the pull rope (11), and the take-up wheel (12) is rotatably mounted on the mounting frame (1), characterized in that: The mounting frame (1) is provided with a first support rod (3), the axis of the take-up wheel (12) is perpendicular to the axis of the first support rod (3), a second support rod (4) is slidably mounted on the first support rod (3), the axis of the second support rod (4) is perpendicular to the axis of the first support rod (3), a third support rod (5) is slidably mounted on the second support rod (4), the third support rod (5) is parallel to the first support rod (3), a first fixing member (6) is provided on the first support rod (3) to fix the second support rod (4), a second fixing member (7) is provided on the second support rod (4) to fix the third support rod (5), and a horizontal mechanism (8) is further provided on the mounting frame (1), the horizontal mechanism (8) is used to keep the axis of the take-up wheel (12) horizontal.
2. A riverbed depth measuring device according to claim 1, characterized in that: The first fixing member (6) comprises a first sliding block (61) slidably mounted on the first supporting rod (3), a first fixing bolt (62) being threadedly mounted on the first sliding block (61), and after the first fixing bolt (62) is tightened, one end of the first fixing bolt (62) is pressed against the first supporting rod (3), and the second supporting rod (4) is mounted on the first sliding block (61). The second fixing member (7) comprises a second sliding block (71) slidably mounted on the second supporting rod (4), a second fixing bolt (72) being threadedly mounted on the second sliding block (71), and after the second fixing bolt (72) is tightened, one end of the second fixing bolt (72) passes through the second sliding block (71) and is pressed against the second supporting rod (4), and the third supporting rod (5) is mounted on the second sliding block (71).
3. A riverbed depth measuring device according to claim 2, characterized in that: The first slider (61) is provided with a first connecting hole (611), one end of the second support rod (4) slides through the first connecting hole (611) and is slidably connected to the first slider (61), a tightening nut (41) is threadedly mounted on one end of the second support rod (4) that passes through the first connecting hole (611), the second slider (71) is provided with a second connecting hole (711), one end of the third support rod (5) slides through the second connecting hole (711), and a third fixing bolt (712) is also threadedly mounted on the second slider (71), and after the third fixing bolt (712) is tightened, one end of the third fixing bolt (712) passes through the second slider (71) and is pressed against a side wall of the third support rod (5).
4. A riverbed depth measuring device according to claim 3, characterized in that: The cross-sections of the first support rod (3), the second support rod (4) and the third support rod (5) are all circular, and a sliding surface (9) is provided on the side walls of the first support rod (3), the second support rod (4) and the third support rod (5); the sliding surface (9) is rectangular and is provided along the axial direction of the first support rod (3), the second support rod (4) and the third support rod (5), respectively; and the first fixing bolt (62), the second fixing bolt (72) and the third fixing bolt (712) are all pressed against the corresponding sliding surface (9) after being tightened.
5. A riverbed depth measuring device according to claim 1, characterized in that: The mounting frame (1) is slidably sleeved on the first support rod (3); the horizontal mechanism (8) comprises a mounting plate (81) threadedly mounted on the first support rod (3); the plate surface of the mounting plate (81) is perpendicular to the axis of the first support rod (3); two rotating shafts (82) are arranged on the mounting plate (81); the axes of the rotating shafts (82) are parallel to the axis of the first support rod (3); two horizontal rods (83) are rotatably mounted on the rotating shafts (82); a fixing nut (84) is threadedly mounted on one end of the rotating shaft (82); after the fixing nut (84) is tightened, the fixing nut (84) is (84) pushes the horizontal rod (83) to press against the mounting plate (81), the length direction of the horizontal rod (83) is parallel to the plate surface of the mounting plate (81), an adjusting bolt (85) is threadedly mounted on one end of the horizontal rod (83) away from the mounting plate (81), the axis of the adjusting bolt (85) is parallel to the axis of the first support rod (3), a locking nut (31) is threadedly mounted on one end of the first support rod (3) passing through the mounting frame (1), the locking nut (31) is pressed against the mounting frame (1), and a level ruler (19) is also provided on the mounting frame (1).
6. A riverbed depth measuring device according to claim 5, characterized in that: The first support rod (3) is defined as being placed vertically, the adjusting bolt (85) is also placed vertically, and the lower end of the adjusting bolt (85) is tapered.
7. A riverbed depth measuring device according to claim 1, characterized in that: The mounting frame (1) is provided with an adjusting wheel (13), and an adjusting block (14) is slidably mounted on the mounting frame (1) on both sides of the adjusting wheel (13), and the sliding direction of the adjusting block (14) is parallel to the axis of the first support rod (3). The adjusting wheel (13) is rotatably mounted on the two adjusting blocks (14), and the first support rod (3) is defined as being placed vertically. A detection spring (15) is provided on the bottom wall of the adjustment block (14), and a pressure switch (16) is installed on the frame. The upper end of the detection spring (15) is pressed against the bottom wall of the adjustment block (14). The lower end of the detection spring (15) is pressed against the pressure switch (16); the pull rope (11) extends vertically downward from the take-up wheel (12), bypasses the adjusting wheel (13), and the height of the upper side of the adjusting wheel (13) is higher than the height of the upper side of the take-up wheel (12); the elastic force generated by the detection spring (15) after compression is smaller than the pulling force of the depth measuring hammer (2) and the pull rope (11) on the adjusting wheel (13); and a reduction motor (17) is further installed on the frame. The reduction motor (17) is used to drive the take-up wheel (12) to rotate, and the reduction motor (17) is electrically connected to the pressure switch (16).
8. A riverbed depth measuring device according to claim 7, characterized in that: The frame is provided with two slide grooves (18), the cross section of the slide grooves (18) being T-shaped, the two adjustment blocks (14) being slidably mounted in the T-shaped horizontal sections of the two slide grooves (18), the two ends of the mounting shaft of the adjustment wheel (13) respectively passing through the T-shaped vertical sections of the two slide grooves (18) and being rotatably connected to the adjustment blocks (14), and the detection spring (15) and the pressure switch (16) being both mounted in the T-shaped horizontal section of the slide groove (18).
9. A riverbed depth measuring device according to claim 1, characterized in that: The first support rod (3) is defined as being vertical, a first pressing block (32) is provided on a sliding sleeve at the lower end of the first support rod (3), a second pressing block (51) is provided on a sliding sleeve at the lower end of the third support rod (5), and the first pressing block (32) and the third pressing block are both made of a material with a relatively high friction coefficient.
Citation Information
Patent Citations
Remote-controlled boat for precisely detecting riverway underwater elevation
CN110296676A
Accurate river channel depth measuring device
CN212133532U
Water depth measuring equipment used on ship
CN221585712U
Survey device for installing rotary staff for measuring road registers and road-based underground facilities
KR102573109B1
Hanging river regulation sand dredger and hanging river regulation system
WO2023217006A1