An integral slope-fitting truss type water level gauge installation device for open water conveyance channels

Abstract

This invention discloses an integrated slope-fitting truss-type water level gauge installation device for open channels in the field of water monitoring technology. It aims to solve the problems of existing water level gauge installation devices, which are typically fixed to the top of a slope. Due to significant water level fluctuations, it is inconvenient to adjust the distance between the water level gauge and the water surface, and the structural stability of the installation device is poor, making it susceptible to deformation due to wind. The device includes a slope, a guide rail, and two slope-fitting trusses. The slope-fitting trusses are slidably connected to the guide rail via a sliding mechanism. A positioning mechanism is provided at the top of the guide rail. Both slope-fitting trusses are rotatably connected to a connecting shaft. A base is provided at the top of the connecting shaft, and the water level gauge is mounted on the base. This invention uses the slope-fitting trusses to move the water level gauge closer to or further away from the guide rail, making the water level gauge suitable for monitoring different water levels. Furthermore, the guide rail, slope-fitting trusses, and connecting shaft form a triangular shape during operation, resulting in structural stability and minimal deformation.

Description

Technical Field

[0001] This invention relates to an installation device for a water level gauge in an integrated slope-fitting truss-type open channel for water conveyance, belonging to the field of water condition monitoring technology. Background Technology

[0002] With the rapid development of society and economy and the acceleration of urbanization, the uneven distribution of water resources has become a key factor restricting human survival and sustainable development. Under the overall planning of the state, a large-scale water conveyance project in China has solved the problem of water resource redistribution and alleviated the urgent needs of water-scarce areas. To ensure the overall flow capacity of the main canal, further research was conducted on the flow optimization of the water conveyance structures in the canal section and the flow capacity within the canal section, based on existing research results. However, during high-flow water conveyance, the water level along the test section was higher than the normal water level, and the flow patterns at the inlets and outlets of different structures within the canal section became turbulent. To ensure the overall flow capacity of the main canal, further research was conducted on the flow optimization of the water conveyance structures in the canal section and the flow capacity within the canal section, based on existing research results. Water level monitoring is particularly important during hydrological monitoring, requiring real-time monitoring of the water level at the slope.

[0003] Existing non-contact radar water level gauge installation devices are usually fixed at the top of the slope. Due to the large changes in water level, it is not convenient to adjust the distance between the water level gauge and the water surface. In addition, the structural stability of the water level gauge installation device is poor and it is easily deformed by wind, which affects the working effect of the water level gauge. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integral slope-fitting truss-type water level gauge installation device for open water conveyance channels. This solves the problems that existing water level gauge installation devices are usually fixed to the top of the slope, which makes it inconvenient to adjust the distance between the water level gauge and the water surface due to large changes in water level. In addition, the structural stability of the water level gauge installation device is poor and it is easily deformed by wind.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0006] This invention provides an integral slope-fitting truss-type water level gauge installation device for open water conveyance channels, including a slope, a guide rail located at the upper end of the slope, and two slope-fitting frames. One end of each slope-fitting frame is slidably connected to the guide rail via a sliding mechanism. The top of the guide rail is provided with a positioning mechanism for fixing the sliding mechanism. The other ends of both slope-fitting frames are rotatably connected to a connecting shaft. The top of the connecting shaft is provided with a base, and a water level gauge is mounted on the base. An adjustment mechanism is provided at the bottom of the outer wall of the base between the two slope-fitting frames.

[0007] Furthermore, the sliding mechanism includes a central shaft, a pulley at the bottom of the central shaft, the outer wall of the slope-fitting frame rotatably connected to the central shaft near the guide rail, and a groove slidably connected to the pulley at the top of the guide rail.

[0008] Furthermore, guide blocks are symmetrically provided on the inner wall of the groove on the upper and lower sides of the pulley.

[0009] Furthermore, the positioning mechanism includes multiple positioning holes opened on the top of the guide rail, and a fixing block is sleeved on the outer wall of the central shaft above the guide rail. The top of the fixing block is threaded with a positioning bolt that matches the positioning hole, and the positioning bolt is located above the positioning hole.

[0010] Furthermore, the top of the central shaft is provided with a slidingly connected support shaft, the top of the support shaft is rotatably connected to the slope truss, the outer wall of the support shaft is threaded with a limit bolt, and the central shaft is provided with a plurality of limit holes for placing the limit bolt.

[0011] Furthermore, a bracket is provided on the top of the base, and the water level gauge is provided at the end of the bracket away from the guide rail, with the water level gauge located above the water surface.

[0012] Furthermore, the bracket is provided with support rods, and the inner side of the slope-fitting frame is provided with multiple reinforcing ribs.

[0013] Furthermore, the adjustment mechanism includes a slide rail slidably disposed at the bottom of the outer wall of the base, a through groove is provided at the bottom of the slide rail, an adjustment block is provided in the through groove, and push rods are symmetrically provided on both sides of the outer wall of the adjustment block and rotatably connected, and the two push rods are respectively rotatably connected to the two slope-adhesive frames.

[0014] Furthermore, one of the slope-fitting truss frames is provided with a first sleeve at its bottom end, and the other slope-fitting truss frame is provided with a second sleeve at its bottom end. The first sleeve is located above the second sleeve, and both the first sleeve and the second sleeve are rotatably connected to the connecting shaft.

[0015] Furthermore, a retaining ring is provided at the bottom of the connecting shaft.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0017] 1. The integrated slope-fitting truss type water level gauge installation device for open water conveyance channels, through the cooperation of guide rails, slope-fitting frames and connecting shafts, can move the water level gauge closer to or further away from the guide rail by adjusting the distance between one end of the two slope-fitting frames, so that the water level gauge can be used for monitoring different water levels. At the same time, the guide rails, slope-fitting frames and connecting shafts form a triangular shape when working, which makes the structure of this application stable, with small deformation, avoids the influence of wind force, and ensures the working effect of the water level gauge.

[0018] 2. The installation device for the integrated slope-adhering truss type water level gauge in the open channel can insert the limiting bolt into another limiting hole, thereby lifting one end of the slope-adhering frame. The slope-adhering frame is no longer tightly attached to the slope, which facilitates the movement of the slope-adhering frame along the guide rail, reduces the wear of the slope-adhering frame, and improves the adjustment efficiency of the slope-adhering frame.

[0019] 3. The installation device for the integrated slope-fitting truss-type water level gauge in the open channel uses an adjusting block and a push rod to ensure that the distance from the adjusting block to the two slope-fitting frames is equal, thereby controlling the base to always be in the center position of the two slope-fitting frames. This provides a positioning function for the base and prevents the connecting shaft from rotating due to wind force, thus avoiding affecting the normal operation of the water level gauge. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of an integrated slope-fitting truss-type water conveyance channel level gauge installation device according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0023] Figure 4 This is a front view structural diagram of the central axis provided according to an embodiment of the present invention;

[0024] Figure 5 This is a top view of the guide rail structure provided according to an embodiment of the present invention;

[0025] Figure 6 This is a bottom view of the slide rail structure provided according to an embodiment of the present invention.

[0026] In the diagram: 1. Guide rail; 2. Slope-mounted truss; 3. Base; 4. Water level gauge; 5. Connecting shaft; 6. Central shaft; 7. Pulley; 8. Slide groove; 9. Limiting hole; 10. Guide block; 11. Slide rail; 12. Through groove; 13. Adjusting block; 14. Push rod; 15. Bracket; 16. Support rod; 17. Reinforcing rib; 18. First sleeve; 19. Second sleeve; 20. Blocking ring; 21. Fixing block; 22. Positioning bolt; 23. Positioning hole; 24. Support shaft; 25. Limiting bolt. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] like Figure 1 and Figure 6 As shown, the present invention provides an integral slope-fitting truss-type water level gauge installation device for open water conveyance channels, including a slope, a guide rail 1 located at the upper end of the slope, and two slope-fitting frames 2. One end of each slope-fitting frame 2 is slidably connected to the guide rail 1 via a sliding mechanism. The top of the guide rail 1 is provided with a positioning mechanism for fixing the sliding mechanism. The other ends of the two slope-fitting frames 2 are rotatably connected to a connecting shaft 5. The top of the connecting shaft 5 is provided with a base 3, and a water level gauge 4 is provided on the base 3. An adjustment mechanism is provided between the two slope-fitting frames 2 at the bottom of the outer wall of the base 3.

[0031] Specifically, during operation, when the water level gauge 4 is required for detection, one end of one of the slope-mounted frames 2 is first fixed to the guide rail 1 via a positioning mechanism. Then, the other slope-mounted frame 2 is moved along the guide rail 1. One end of each of the two slope-mounted frames 2 is rotatably connected to the connecting shaft 5. As the other ends of the two slope-mounted frames 2 move closer to or further away from each other, the connecting shaft 5 moves closer to or further away from the guide rail 1. The base 3 and the water level gauge 4 move with the connecting shaft 5, thereby adjusting the position of the water level gauge 4 and moving it above the water surface for monitoring. When the water level changes, the relative distance between one end of the two slope-mounted frames 2 can be adjusted, thereby moving the water level gauge 4 to ensure its normal operation. Specifically, when the water level is low, one end of each of the two slope-mounted frames 2... The two slope-mounted frames 2 move closer to each other, causing the water level gauge 4 to move away from the guide rail 1. When the water level is high, one end of each frame moves away from the other, and the water level gauge 4 moves closer to the guide rail 1. As the slope-mounted frames 2 move, the base 3, through an adjustment mechanism, keeps the base 3 in the center of the two slope-mounted frames 2, thus positioning the water level gauge 4. When the application is working, the bottom of the slope-mounted frame 2 is in contact with the surface of the slope, thereby evenly distributing the weight of the slope-mounted frame 2 and reducing its impact on the slope. At the same time, the application uses the guide rail 1, the slope-mounted frame 2, and the connecting shaft 5 to form a triangular shape when working, thus making the structure of the application stable, with small deformation, avoiding the influence of wind, and ensuring the stability of the water level gauge 4 when working. Optionally, the slope-mounted frame 2 is made of stainless steel.

[0032] This application utilizes the cooperation of guide rail 1, slope-adhesive frame 2, and connecting shaft 5. By adjusting the distance between one end of the two slope-adhesive frames 2, the water level gauge 4 can be moved closer to or further away from guide rail 1. This allows the water level gauge 4 to be used for monitoring different water levels. At the same time, the guide rail 1, slope-adhesive frame 2, and connecting shaft 5 form a triangular shape during operation, which makes the structure of this application stable, reduces deformation, avoids the influence of wind, and ensures the working effect of the water level gauge 4.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown in one embodiment, the sliding mechanism includes a central shaft 6, a pulley 7 at the bottom end of the central shaft 6, the outer wall of the slope-adhesive frame 2 is rotatably connected to the central shaft 6 on the side near the guide rail 1, the top of the guide rail 1 is provided with a sliding groove 8 that is slidably connected to the pulley 7, and the inner wall of the sliding groove 8 is symmetrically provided with guide blocks 10 on the upper and lower sides of the pulley 7.

[0034] Specifically, when it is necessary to drive the slope-adhesive frame 2 to slide along the guide rail 1, the central shaft 6 moves with one end of the slope-adhesive frame 2 and drives the pulley 7 to move along the slide groove 8. The central shaft 6 itself does not rotate. With the movement of the slope-adhesive frame 2, the slope-adhesive frame 2 and the central shaft 6 rotate relative to each other. The guide block 10 plays a further limiting role for the pulley 7, ensuring the stability of the pulley 7 when it moves.

[0035] like Figure 1 , Figure 2 and Figure 5 As shown in one embodiment, the positioning mechanism includes a plurality of positioning holes 23 formed on the top of the guide rail 1, and a fixing block 21 is sleeved on the outer wall of the central shaft 6 above the guide rail 1. The top of the fixing block 21 is threaded with a positioning bolt 22 that matches the positioning hole 23, and the positioning bolt 22 is located above the positioning hole 23.

[0036] Specifically, when the slope-mounted frame 2 moves along the guide rail 1, the fixing block 21 moves with the central axis 6, and the positioning bolt 22 moves with the fixing block 21. When the slope-mounted frame 2 moves to the required position, the position of the slope-mounted frame 2 is finely adjusted so that the positioning bolt 22 is aligned with the nearest positioning hole 23. Then, the positioning bolt 22 can be screwed into the positioning hole 23 to fix the relative position of the fixing block 21 and the guide rail 1, thereby fixing the relative position of the slope-mounted frame 2 and the guide rail 1 and completing the position adjustment of the slope-mounted frame 2. When it is necessary to adjust the slope-mounted frame 2 again, the positioning bolt 22 can be unscrewed.

[0037] like Figure 2 As shown, in one embodiment, the top of the central shaft 6 is provided with a slidingly connected support shaft 24, the top end of the support shaft 24 is rotatably connected to the slope truss 2, the outer wall of the support shaft 24 is threaded with a limit bolt 25, and the central shaft 6 is provided with a plurality of limit holes 9 for placing the limit bolt 25.

[0038] Specifically, when it is necessary to move the slope-adhesive frame 2 along the guide rail 1, the limiting bolt 25 can be removed from the limiting hole 9, and the end of the slope-adhesive frame 2 closest to the guide rail 1 can be slightly lifted. The support shaft 24 moves upward with the slope-adhesive frame 2, aligning the limiting bolt 25 with another limiting hole 9. At this time, the slope-adhesive frame 2 and the guide rail 1 move away from each other, and the limiting bolt 25 can be inserted into the other limiting hole 9, thereby lifting one end of the slope-adhesive frame 2. The slope-adhesive frame 2 is no longer tightly attached to the slope, making it easier to move the slope-adhesive frame 2 along the guide rail 1. The movement reduces wear on the slope-adhesive frame 2 and improves its adjustment efficiency. After the slope-adhesive frame 2 moves to the required position, the limiting bolt 25 can be removed and the slope-adhesive frame 2 can be returned to its original position, so that the slope-adhesive frame 2 can be attached to the slope again, ensuring that the weight of the slope-adhesive frame 2 can be evenly distributed on the slope, reducing the impact of the slope-adhesive frame 2 on the slope. Optionally, the diameter of the limiting hole 9 is slightly larger than that of the limiting bolt 25, and there is an offset when one end of the slope-adhesive frame 2 is lifted, so that the limiting bolt 25 can still be aligned with the limiting hole 9 after the slope-adhesive frame 2 is lifted.

[0039] In one embodiment, the base 3 is provided with a bracket 15 on its top, and the water level gauge 4 is provided at one end of the bracket 15 away from the guide rail 1. The water level gauge 4 is located above the water surface, and the initial position of the water level gauge 4 is adjusted by the bracket 15 to suit different working needs.

[0040] In one embodiment, the support 15 is provided with a support rod 16, and the inner side of the slope-adhesive frame 2 is provided with a plurality of reinforcing ribs 17, which ensures the structural stability of the support 15 and the slope-adhesive frame 2.

[0041] like Figure 6 As shown, in one embodiment, the adjustment mechanism includes a slide rail 11 slidably disposed at the bottom of the outer wall of the base 3. A through groove 12 is provided at the bottom of the slide rail 11. An adjustment block 13 is slidably connected in the through groove 12. Push rods 14 are symmetrically provided on both sides of the outer wall of the adjustment block 13 and are rotatably connected. The two push rods 14 are respectively rotatably connected to the two slope-adhesive frames 2.

[0042] During operation, when one end of one slope-adhesive frame 2 is fixed and the other end of the slope-adhesive frame 2 moves, the distance between the two slope-adhesive frames 2 changes. At this time, the slope-adhesive frame 2 can drive the two push rods 14 to swing synchronously. The adjusting block 13 is always located inside the through groove 12 of the slide rail 11 and slides, so that the adjusting block 13 is located at the center position of the base 3. Through the cooperation of the adjusting block 13 and the push rod 14, the distance from the adjusting block 13 to the two slope-adhesive frames 2 is equal, so as to control the base 3 to always be at the center position of the two slope-adhesive frames 2, thereby playing a positioning role for the base 3 and making the bracket 15 always perpendicular to the guide rail 1, so as to limit the working angle of the water level gauge 4 and prevent the connecting shaft 5 from rotating due to wind force, thereby avoiding affecting the normal operation of the water level gauge 4. Optionally, the pulley 7 includes a support rod and rollers rotatably set at both ends of the support rod, and the support rod is fixedly connected to the central shaft 6.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown in one embodiment, one of the slope-adhesive frames 2 has a first sleeve 18 at its bottom end, and the other slope-adhesive frame 2 has a second sleeve 19 at its bottom end. The first sleeve 18 is located above the second sleeve 19. Both the first sleeve 18 and the second sleeve 19 are rotatably connected to the connecting shaft 5. The bottom of the connecting shaft 5 is provided with a blocking ring 20. The top of the connecting shaft 5 is a base 3, and the bottom is a blocking ring 20, thereby preventing the first sleeve 18 and the second sleeve 19 from detaching from the connecting shaft 5 and ensuring the stability of the two slope-adhesive frames 2 during movement.

[0044] In one embodiment, taking a large-scale water conveyance project in China as an example, numerical calculations are performed using ANSYS to conduct finite element analysis.

[0045] An integral slope-fitting truss 2 (slope 1:3.5) was constructed. Based on the actual shape of the water conveyance project and the water level and flow conditions, the boundary conditions were set as follows: wind speed 10 m / s, air density 1.25 kg / m3, and water viscosity coefficient 0.001 Pa·s. Normal constraints were used around the foundation, and triaxial fixed-end constraints were used at the bottom. The number of mesh elements was 31,362, and the number of nodes was 27,655. In the model, the slope and slope-fitting truss were simulated as solid elements, and the velocity measuring instrument was replaced by concentrated force.

[0046] Analysis shows that under a downstream wind speed of 10 m / s, the downstream deformation is 0.04~0.05 cm, which is extremely small. The structural self-weight of this application acts on the slope concrete lining, resulting in a tensile stress increment of 0.02 MPa and a compressive stress increment of about 0.26 MPa, and the distribution is within a very small range. Therefore, it can be concluded that the structural self-weight of this application has little impact on the concrete lining.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An installation device for a slope-fitting truss-type open channel water level gauge, characterized in that, Includes a slope, a guide rail (1) located at the upper end of the slope, and two slope-attaching frames (2). One end of each slope-attaching frame (2) is slidably connected to the guide rail (1) via a sliding mechanism. The top of the guide rail (1) is provided with a positioning mechanism for fixing the sliding mechanism. The other ends of the two slope-attaching frames (2) are rotatably connected to a connecting shaft (5). The top of the connecting shaft (5) is provided with a base (3). A water level gauge (4) is provided on the base (3). An adjustment mechanism is provided between the two slope-attaching frames (2) at the bottom of the outer wall of the base (3). The sliding mechanism includes a central shaft (6), a pulley (7) at the bottom of the central shaft (6), the outer wall of the slope frame (2) near the guide rail (1) is rotatably connected to the central shaft (6), and a groove (8) is opened at the top of the guide rail (1) to slide in connection with the pulley (7). The positioning mechanism includes multiple positioning holes (23) opened on the top of the guide rail (1). A fixing block (21) is sleeved on the outer wall of the central shaft (6) above the guide rail (1). The top of the fixing block (21) is threaded with a positioning bolt (22) that matches the positioning hole (23). The positioning bolt (22) is located above the positioning hole (23). The adjustment mechanism includes a slide rail (11) slidably disposed at the bottom of the outer wall of the base (3). A through groove (12) is provided at the bottom of the slide rail (11). An adjustment block (13) is provided in the through groove (12) and is slidably connected. Push rods (14) are symmetrically connected on both sides of the outer wall of the adjustment block (13). The two push rods (14) are respectively rotatably connected to the two slope-adhesive frames (2).

2. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 1, characterized in that, The inner wall of the chute (8) is provided with guide blocks (10) symmetrically on the upper and lower sides of the pulley (7).

3. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 1, characterized in that, The top of the central shaft (6) is provided with a sliding support shaft (24), the top of the support shaft (24) is rotatably connected to the slope truss (2), the outer wall of the support shaft (24) is threaded with a limit bolt (25), and the central shaft (6) is provided with a plurality of limit holes (9) for placing the limit bolt (25).

4. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 1, characterized in that, The base (3) is provided with a bracket (15) on top, and the bracket (15) is provided with a water level gauge (4) at one end away from the guide rail (1), and the water level gauge (4) is located above the water surface.

5. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 4, characterized in that, The bracket (15) is provided with a support rod (16), and the inner side of the slope-adhesive frame (2) is provided with multiple reinforcing ribs (17).

6. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 1, characterized in that, One of the slope-adhesive frame (2) is provided with a first sleeve (18) at the bottom end, and the other slope-adhesive frame (2) is provided with a second sleeve (19) at the bottom end. The first sleeve (18) is located above the second sleeve (19), and both the first sleeve (18) and the second sleeve (19) are rotatably connected to the connecting shaft (5).

7. The installation device for an integral slope-fitting truss-type open channel water level gauge according to claim 6, characterized in that, The bottom of the connecting shaft (5) is provided with a retaining ring (20).

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