A movable hydraulic monitoring sensor bracket and its usage method

Abstract

This invention belongs to the field of water conservancy monitoring technology and relates to a movable water conservancy monitoring sensor bracket, comprising: a support pole, a crossbar, a sensor bracket, and a sensor. The suspended end of the crossbar extends horizontally and covers the water flow to be monitored. The bottom of the crossbar is slidably connected to the sensor bracket via a dovetail groove and a dovetail block. The sensor is connected to the bottom of the sensor bracket. A large pulley is provided at the suspended end of the crossbar. A steel cable is connected between the upper and lower universal ratchet wheels. After the steel cable is bound to the shaft of the upper universal ratchet wheel, it first passes around the large pulley, then is fixedly connected to the sensor bracket, and finally is bound to the shaft of the lower universal ratchet wheel. This invention also discloses a method for using the movable water conservancy monitoring sensor bracket for accurately locating the flood line in a river channel. This invention uses a traction steel cable in conjunction with a dovetail groove to control the forward and backward movement and adjustment of the sensor and to fix the equipment, which facilitates the installation and maintenance of field equipment and improves installation efficiency and safety assurance.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy monitoring technology, and relates to a water conservancy monitoring sensor bracket that can move back and forth and its usage method. Background Technology

[0002] In the fields of water conservancy and agriculture, many outdoor monitoring devices are installed in sparsely populated areas with complex terrain and harsh conditions. Common non-contact flow measurement devices for rivers are fixed to the front end of a pole's crossarm, extending into a suspended position that is difficult for people to reach. The height of the device above the ground (such as the riverbed) is about 4 meters or even higher. This makes sensor maintenance extremely inconvenient, and maintenance can only be carried out during the dry season by erecting a long ladder from the riverbed to the crossarm for high-altitude maintenance.

[0003] Therefore, it is necessary to provide a device that allows for quick and convenient maintenance of the sensor without being limited by time or water season to solve this problem. Summary of the Invention

[0004] The technical solution adopted by the present invention to solve the technical problem is: a water conservancy monitoring sensor bracket that can move back and forth, including: a support pole, a crossbar, a sensor bracket, and a sensor. The top of the support pole is fixedly connected to one side of the crossbar. The suspended end of the crossbar extends horizontally and covers the water flow to be monitored. The bottom of the crossbar is provided with an inverted dovetail groove that is concave upward along the length direction of the crossbar. The top of the sensor bracket is provided with an inverted dovetail block that matches the dovetail groove. The dovetail block can slide back and forth along the length direction of the crossbar in the dovetail groove. The sensor is connected to the bottom of the sensor bracket, and the detection surface of the sensor is vertically downward.

[0005] The horizontal bar has a large pulley at its suspended end and an upper universal ratchet and a lower universal ratchet at its fixed end. A steel cable connects the upper universal ratchet and the lower universal ratchet. After the steel cable is tied to the shaft of the upper universal ratchet, it first passes around the large pulley, then is fixedly connected to the sensor bracket, and finally is tied to the shaft of the lower universal ratchet.

[0006] Electromagnets are inlaid on both sides of the dovetail groove, and the dovetail block is made of iron. During installation, the sensor bracket is slid to the test position below the dovetail groove by rotating the upper and lower universal ratchet wheels and adjusting the steel cable. At this time, the sensor is facing the water surface to be measured below, and the electromagnets are used to fix the position of the sensor bracket. When inspecting, maintaining or adjusting the sensor, the electromagnetic fixing of the electromagnet is released, and the upper and lower universal ratchet wheels and adjusting the steel cable can be rotated to move the sensor along the length of the crossbar.

[0007] A small pulley is also fixedly connected to the bottom of the support pole. The small pulley is at the same horizontal height as the sensor. After the steel cable is fixedly connected to the sensor bracket and before it is bound to the universal ratchet, it passes over the small pulley. A rotation counter is provided on the shaft of the small pulley. This allows the steel cable to exert a pulling force on the sensor bracket in a direction parallel to the crossbar, thus saving more effort and reducing friction.

[0008] Preferably, the electromagnet is a normally closed electromagnet. A normally closed electromagnet can generate an attraction to an iron dovetail block when it is not energized, providing a fastening force. When energized, the attraction force is eliminated, allowing the operator to move the dovetail block and thus move the sensor. Therefore, it is not energized normally, but only energized during adjustment, which is more energy-efficient.

[0009] Preferably, the electromagnet is elongated and its length is 0.2 to 1 meter. The elongated electromagnet can lock the position after the sensor is finely adjusted when the position of the monitored location changes frequently due to water flow or flood impact. Therefore, it is more efficient.

[0010] Preferably, the diameter of the large pulley is 1.5 to 2 times the diameter of the crossbar tube, so that the steel cable wound on the large pulley can extend out of the end of the crossbar, thereby facilitating the pulling of the steel cable without being affected by the width of the crossbar.

[0011] Preferably, a crank handle is fixedly connected to both the upper and lower universal ratchet wheels. The crank handle rotates coaxially with the ratchet wheel, making it easier and faster to rotate the ratchet wheel.

[0012] Preferably, each end of the dovetail groove is provided with a limiting block, which is used to prevent the dovetail block from sliding out of the dovetail groove, making manual operation safer and more reliable.

[0013] This invention also discloses a method for using a movable hydraulic monitoring sensor bracket, the method comprising the following steps:

[0014] Step 1: Fix the sling plate to the sensor bracket and record the initial position of the sensor bracket on the crossbar and the initial value of the rotation counter.

[0015] Step two: Set the length of the sling on the sling plate so that the plumb bob at the bottom of the sling is just close to the river surface; the height of the cross arm above the river surface is known or measurable, therefore, the length of the sling can be determined.

[0016] Step 3: Use the universal ratchet to control the sensor bracket to move towards the suspended end of the crossbar. From the pole, you can look down to see if the plumb bob is at the center line.

[0017] Step 4: When the plumb bob reaches the middle flood line, read the ending value on the rotation counter. The difference between the ending value and the starting value of the rotation counter is the distance from the starting position of the sensor bracket on the crossbar to the middle flood of the river, which is the accurate position for installing the sensor. This is because when the upper traction cable moves the sensor bracket, the lower traction cable will drive the small pulley and the rotation counter to rotate and count.

[0018] Step 5: Use the lower universal ratchet to control the sensor bracket to move back to the starting position of the sensor bracket on the crossbar in Step 1, remove the sling reel, and install the sensor;

[0019] Step six: Use the universal ratchet to control the sensor bracket to move the sensor to the suspended end of the crossbar by the distance measured in step four. At this time, the sensor is accurately positioned directly above the flood line in the river channel. Secure the sensor in place using an electromagnet, dovetail groove, and dovetail block to complete the sensor installation.

[0020] The cable tray can also be replaced by a laser emitter. The laser emitter is installed on the sensor support. When the laser emitter is turned on and pointing vertically downward, the position of the flood line can be confirmed by the laser spot on the river surface.

[0021] Preferably, in step two, the sling reel is electrically driven to rotate. After the sling reel reaches the river surface, the length of the sling is adjusted so that the plumb bob at the bottom of the sling is just close to the river surface.

[0022] The beneficial effects of this invention are:

[0023] 1. This invention uses a traction steel cable in conjunction with a dovetail groove to control the forward and backward movement and adjustment of the sensor, as well as to fix the equipment, which facilitates the installation and maintenance of field equipment and improves installation efficiency and safety assurance.

[0024] 2. This invention uses a long strip-shaped electromagnet to fix and position the sensor, making the sensor positioning more stable. Even if the location to be monitored changes due to water flow or flood impact, the sensor position can still be locked after fine-tuning without adjusting the length of the crossbar. Therefore, it is more efficient and easier to use.

[0025] 3. This invention solves the problem of having to make repeated and frequent adjustments to determine the accurate installation position of the sensor in the middle of the river channel by setting a rotation counter at the small pulley and using a sling and plumb bob to accurately position it directly above the flood line in the middle of the river channel. Attached Figure Description

[0026] Figure 1 It is a water level measurement diagram of a hydraulic monitoring sensor bracket that can move back and forth.

[0027] Figure 2 This is a schematic diagram of the cross-section of the dovetail groove and dovetail block at the crossbar section;

[0028] Figure 3 yes Figure 2 Exploded view;

[0029] Figure 4 This is a schematic diagram of the cross-section of the limiting block at the crossbar.

[0030] Figure 5 This diagram illustrates the usage of a movable hydraulic monitoring sensor bracket.

[0031] Figure 6 This is a diagram showing the installation location of the rotary counter.

[0032] In the diagram: 1. Support pole; 2. Crossbar; 3. Sensor bracket; 4. Sensor; 5. Dovetail groove; 6. Dovetail block; 7. Large pulley; 8. Upper universal ratchet; 9. Lower universal ratchet; 10. Steel cable; 11. Electromagnet; 12. Small pulley; 13. Handle; 14. Limit block; 15. Rotation counter; 16. Sling reel; 17. Sling; 18. Plumb bob. Detailed Implementation

[0033] The related technologies of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] refer to Figure 1-6 A movable water conservancy monitoring sensor bracket includes: a support rod 1, a crossbar 2, a sensor bracket 3, and a sensor 4. The top of the support rod 1 is fixedly connected to one side of the crossbar 2. The suspended end of the crossbar 2 extends horizontally and covers the water flow to be monitored. The bottom of the crossbar 2 is provided with an inverted dovetail groove 5 that is concave along the length direction of the crossbar 2. The top of the sensor bracket 3 is provided with an inverted dovetail block 6 that matches the dovetail groove 5. The dovetail block 6 can slide back and forth along the length direction of the crossbar 2 within the dovetail groove 5. The bottom of the sensor bracket 3 is connected to the sensor 4, and the detection surface of the sensor 4 is vertically downward.

[0035] The suspended end of the crossbar 2 is equipped with a large pulley 7, and the fixed end of the crossbar 2 is equipped with an upper universal ratchet 8 and a lower universal ratchet 9. A steel cable 10 is connected between the upper universal ratchet 8 and the lower universal ratchet 9. After the steel cable 10 is bound to the shaft of the upper universal ratchet 8, it first passes around the large pulley 7, then is fixedly connected to the sensor bracket 3, and finally is bound to the shaft of the lower universal ratchet 9.

[0036] Electromagnets 11 are inlaid on both sides of the dovetail of the dovetail groove 5, and the dovetail block 6 is made of iron. During installation, the upper universal ratchet 8 and the lower universal ratchet 9 are rotated to adjust the steel cable 10, so that the sensor bracket 3 slides to the test position under the dovetail groove 5. At this time, the sensor 4 is facing the water surface to be measured below, and the electromagnets 11 are used to fix the position of the sensor bracket 3. When inspecting, maintaining or adjusting the sensor 4, the electromagnetic fixing of the electromagnets 11 is released, and the upper universal ratchet 8 and the lower universal ratchet 9 are rotated to adjust the steel cable 10, so that the sensor 4 can be moved along the length of the crossbar 2.

[0037] The bottom of the support rod 1 is also fixedly connected to a small pulley 12. The small pulley 12 and the sensor 4 are at the same horizontal height. After the steel cable 10 is fixedly connected to the sensor bracket 3 and before it is bound to the universal ratchet 9, it passes over the small pulley 12. The small pulley 12 has a rotation counter 15 on its rotating shaft. This makes the steel cable 10 exert a pulling force on the sensor bracket 3 in a direction parallel to the crossbar 2, thus saving more effort and reducing friction.

[0038] Furthermore, the electromagnet 11 is a normally closed electromagnet. A normally closed electromagnet can generate an attraction to the iron dovetail block 6 under different electrical conditions, providing a fastening force. When energized, the attraction force is eliminated, allowing the operator to move the dovetail block 6 and thus move the sensor 4. Therefore, it is not energized normally, but only energized during adjustment, which is more energy-efficient.

[0039] Furthermore, the electromagnet 11 is elongated, with a length of 0.2 to 1 meter. The elongated electromagnet 11 can be locked after fine-tuning the position of the sensor 4 when the position of the monitored location changes frequently due to water flow or flood impact. Therefore, it is more efficient.

[0040] Furthermore, the diameter of the large pulley 7 is 1.5 to 2 times the diameter of the crossbar 2, so that the steel cable 10 wound on the large pulley 7 can extend out of the end of the crossbar 2, thereby facilitating the pulling of the steel cable 10 without being affected by the width of the crossbar 2.

[0041] Furthermore, a crank handle 13 is fixedly connected to both the upper universal ratchet 8 and the lower universal ratchet 9. The crank handle 13 rotates coaxially with the ratchet, making it easier and faster to rotate the ratchet.

[0042] Furthermore, each end of the dovetail groove 5 is provided with a limiting block 14, which is used to prevent the dovetail block 6 from sliding out of the dovetail groove 5, making manual operation safer and more reliable.

[0043] This invention also discloses a method for using a movable hydraulic monitoring sensor bracket, the method comprising the following steps:

[0044] Step 1: Fix the sling plate 16 on the sensor bracket 3, and record the starting position of the sensor bracket 3 on the crossbar 2 and the starting value on the rotation counter 15.

[0045] Step 2: Set the length of the sling 17 on the sling plate 16 so that the plumb bob 18 at the bottom of the sling 17 is just close to the river surface; the height of the cross arm above the river surface is known or measurable, so the length of the sling 17 can be determined.

[0046] Step 3: Control the sensor bracket 3 to move to the suspended end of the crossbar 2 by using the universal ratchet 8. From the support pole 1, you can look down to see if the plumb bob 18 is at the center line position.

[0047] Step 4: When the plumb bob 18 reaches the middle flood line, read the ending value on the rotation counter 15. The difference between the ending value and the starting value of the rotation counter 15 is the distance from the starting position of the sensor bracket 3 on the crossbar 2 to the middle flood of the river, which is the accurate position for installing the sensor 4. This is because when the upper traction cable 10 drives the sensor bracket 3, the lower traction cable 10 will drive the small pulley 12 and the rotation counter 15 to rotate and count.

[0048] Step 5: Control the sensor bracket 3 to move back to the starting position of the sensor bracket 3 on the crossbar 2 in Step 1 by using the lower universal ratchet 9, remove the sling plate 16, and install the sensor 4;

[0049] Step six: Using the universal ratchet 8, control the sensor bracket 3 to move the sensor 4 to the suspended end of the crossbar 2 by the distance measured in step four. At this time, the sensor 4 is accurately positioned directly above the flood line in the river channel. The sensor 4 is then fixed in place by the electromagnet 11, the dovetail groove 5, and the dovetail block 6, thus completing the installation of the sensor 4.

[0050] The cable tray 16 can also be replaced by a laser emitter. The laser emitter is installed on the sensor support 3. When the laser emitter is turned on and pointing vertically downward, the position of the flood line can be confirmed by the laser spot on the river surface on the pole 1.

[0051] Furthermore, in step two, the cable tray 16 is electrically driven to rotate. After the cable tray 16 reaches the river surface, the length of the cable 17 is adjusted so that the plumb bob 18 at the bottom of the cable 17 is just close to the river surface.

[0052] Example

[0053] In this embodiment, the sensor 4 is moved forward and backward along the length of the crossbar 2 by the traction steel cables 10 at both ends of the sensor bracket 3. The lower universal ratchet 9 below the crossbar 2 drives the traction steel cable 10, pulling the sensor 4 towards the support pole 1 until the sensor 4 moves to the work platform. After maintenance or installation is completed, the upper universal ratchet 8 above the crossbar 2 pulls the traction steel cable 10, which passes through the large pulley 7 at the top of the crossbar 2, moving the sensor 4 towards the suspended end of the crossbar 2 until the sensor 4 moves to the installation position. By simultaneously tightening the upper and lower universal ratchets, the steel cable 10 is kept taut, and with the dovetail groove 5 for limiting, the position of the sensor 4 is fixed.

[0054] Meanwhile, a normally closed electromagnet 11 is embedded in the inner wall of the dovetail groove 5 guide rail. Electromagnet 11 has no magnetic force when energized, but remains in a strong magnetic attraction state when de-energized. When the sensor 4 needs to be moved on-site, the electromagnet 11 is energized through the RTU inside the mounting bracket 1, deactivating its attraction. When the sensor 4 is returned to its designated position after installation and maintenance, the electromagnet 11 is de-energized, and the sensor 4 is firmly secured by the sensor bracket 3 and the electromagnet 11 in the dovetail groove 5. Since power is only required during installation and maintenance, and it remains de-energized at other times, it is extremely energy-efficient and suitable for various scenarios, such as mains power supply scenarios and low-power scenarios.

[0055] The position of sensor 4 is fixed by electromagnet 11. In actual use, there are also scenarios where the length of electromagnet 11 needs to be increased to allow the position of sensor 4 to be adjusted within a certain range.

[0056] For example, some sensors 4 need to be installed in the middle flood zone of the river (the place where the water flow is fastest in the river). However, the installers are operating on the riverbank, and it is difficult to determine whether the installed sensor 4 is in the middle flood zone. It is necessary to return the crossbar 2 to its original position, make a judgment from a distance, and then raise or lower or rotate the crossbar 2 to readjust and correct the deviation. Then, the crossbar 2 is returned to its original position again. This process of adjustment is quite cumbersome.

[0057] For example, the position of the middle flood in a riverbed often changes due to the impact of water flow or floods. Once sensor 4 is fixed, the subsequent maintenance and adjustment of the original installation position is quite complicated, including operations such as rotating the crossbar 2.

[0058] Sensor 4 is an electromagnet 11 of a certain length (customized according to specific requirements) embedded in the inner wall of the dovetail groove 5 guide rail at the front end of the crossbar 2. This allows the sensor 4 to be adjusted within a certain distance range and fixed by the electromagnet 11 in conjunction with the dovetail groove 4.

[0059] When it is necessary to accurately determine the position directly above the flood line in the river channel in advance to fix the positioning sensor 4, the following steps are taken: First, fix the sling plate 16 on the sensor bracket 3 and record the starting position of the sensor bracket 3 on the crossbar 2 and the starting value on the rotation counter 15; Second, set the length of the sling 17 on the sling plate 16 so that the plumb bob 18 at the bottom of the sling 17 is just close to the river surface; the height of the crossbar above the river surface is known or measurable, so the length of the sling 17 can be determined; Third, control the sensor bracket 3 to move towards the suspended end of the crossbar 2 through the universal ratchet 8, and the plumb bob 18 can be viewed from the support pole 1 to see if it is at the flood line position; Fourth, when the plumb bob 18 reaches the flood line position, read the ending value on the rotation counter 15. The difference between the ending value and the starting value of the rotation counter 15 is the sensor bracket position. 3. The distance from the starting position on the crossbar 2 to the flood level in the river channel is the accurate position for installing sensor 4. Because when the upper traction cable 10 drives the sensor bracket 3, the lower traction cable 10 will drive the small pulley 12 and the rotation counter 15 to rotate and count. Fifth, control the sensor bracket 3 to move back to the starting position of the sensor bracket 3 on the crossbar 2 in the first step through the lower universal ratchet 9, remove the sling plate 16, and install sensor 4. Sixth, control the sensor bracket 3 to move the sensor 4 to the suspended end of the crossbar 2 by the upper universal ratchet 8, which is the distance measured in step four. At this time, sensor 4 is accurately located directly above the flood level in the river channel. Secure the sensor 4 in place using electromagnet 11, dovetail groove 5, and dovetail block 6 to complete the installation of sensor 4.

[0060] In summary, this invention provides a movable hydraulic monitoring sensor bracket and its usage method. By using a traction steel cable in conjunction with a dovetail groove to control the forward and backward movement and adjustment of the sensor, as well as to fix the equipment, it facilitates the installation and maintenance of field equipment, improves installation efficiency and safety assurance capabilities, and therefore has broad application prospects.

[0061] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A hydraulic monitoring sensor bracket that can move back and forth, characterized in that, include: The device consists of a support pole (1), a crossbar (2), a sensor bracket (3), and a sensor (4). The crossbar (2) is fixedly connected to the top of the support pole (1) on one side. The suspended end of the crossbar (2) extends horizontally and covers the water flow to be monitored. The bottom of the crossbar (2) has an inverted dovetail groove (5) with an upward indentation along the length direction of the crossbar (2). The top of the sensor bracket (3) has an inverted dovetail block (6). The dovetail block (6) matches the dovetail groove (5). The dovetail block (6) can slide back and forth along the length direction of the crossbar (2) in the dovetail groove (5). The bottom of the sensor bracket (3) is connected to the sensor (4). The detection surface of the sensor (4) is vertically downward. The suspended end of the crossbar (2) is provided with a large pulley (7), and the fixed end of the crossbar (2) is provided with an upper universal ratchet (8) and a lower universal ratchet (9). A steel cable (10) is connected between the upper universal ratchet (8) and the lower universal ratchet (9). After the steel cable (10) is bound to the rotating shaft of the upper universal ratchet (8), it first passes around the large pulley (7), then is fixedly connected to the sensor bracket (3), and finally is bound to the rotating shaft of the lower universal ratchet (9). Electromagnets (11) are inlaid on both sides of the dovetail of the dovetail groove (5), and the dovetail block (6) is made of iron. The bottom of the support pole (1) is also fixedly connected to a small pulley (12). The small pulley (12) and the sensor (4) are at the same horizontal height. The steel cable (10) passes over the small pulley (12) after the sensor bracket (3) is fixedly connected and before the universal ratchet (9) is bound. A rotation counter (15) is provided on the shaft of the small pulley (12).

2. The hydraulic monitoring sensor bracket that can move back and forth according to claim 1, characterized in that, The electromagnet (11) is a normally closed electromagnet.

3. The hydraulic monitoring sensor bracket that can move back and forth according to claim 1, characterized in that, The electromagnet (11) is long and narrow, and its length is 0.2 to 1 meter.

4. The hydraulic monitoring sensor bracket that can move back and forth according to claim 1, characterized in that, The diameter of the large pulley (7) is 1.5 to 2 times the diameter of the crossbar (2).

5. The hydraulic monitoring sensor bracket that can move back and forth according to claim 1, characterized in that, A crank handle (13) is fixedly connected to both the upper universal ratchet (8) and the lower universal ratchet (9), and the crank handle (13) rotates coaxially with the ratchet.

6. The hydraulic monitoring sensor bracket that can move back and forth according to claim 1, characterized in that, Limiting blocks (14) are provided at both ends of the dovetail groove (5).

7. A method for using a hydraulic monitoring sensor bracket that can move back and forth, characterized in that, The method uses the movable hydraulic monitoring sensor bracket as described in any one of claims 1 to 6, and includes the following steps: Step 1: Fix the sling plate (16) on the sensor bracket (3) and record the starting position of the sensor bracket (3) on the crossbar (2) and the starting value on the rotation counter (15); Step 2: Set the length of the sling (17) on the sling disc (16) so that the plumb bob (18) at the lowest end of the sling (17) is just close to the river surface; Step 3: Control the sensor bracket (3) to move towards the suspended end of the crossbar (2) by using the universal ratchet (8). From the support pole (1), you can look down to see if the plumb bob (18) is at the center line position. Step 4: When the plumb bob (18) reaches the middle flood line, read the ending value on the rotation counter (15). The difference between the ending value and the starting value of the rotation counter (15) is the distance from the starting position of the sensor bracket (3) on the crossbar (2) to the middle flood of the river, which is the accurate position for installing the sensor (4). Step 5: Control the sensor bracket (3) to move back to the starting position of the sensor bracket (3) on the crossbar (2) in Step 1 by using the lower universal ratchet (9), remove the sling plate (16), and install the sensor (4); Step six: Control the sensor bracket (3) via the universal ratchet (8) to move the sensor (4) to the suspended end of the crossbar (2) by the distance measured in step four. At this time, the sensor (4) is accurately positioned directly above the flood line in the river channel. Secure it in place using the electromagnet (11), dovetail groove (5) and dovetail block (6) to complete the installation of the sensor (4).

8. The method of using a movable hydraulic monitoring sensor bracket according to claim 7, characterized in that, In step two, the cable tray (16) is electrically driven to rotate. After the cable tray (16) reaches the river surface, the length of the cable (17) is adjusted so that the plumb bob (18) at the bottom of the cable (17) is just close to the river surface.

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