Sandbag cofferdam deformation monitoring and early warning device

Abstract

The utility model relates to the field of civil engineering construction discloses a sandbag cofferdam deformation monitoring early warning device, including river course, cofferdam main part and monitoring baulk, the cofferdam main part is stacked in the river course through multilayer geotextile sandbag and is formed, and monitoring baulk parallel setting is in the one side of cofferdam main part backwater, the front and rear both ends of monitoring baulk lower surface all are fixed with support frame, and one side of monitoring baulk is provided with two monitoring mechanisms for monitoring sandbag cofferdam deformation, and the back of monitoring baulk is provided with drive mechanism. The utility model discloses, through the setting of ultrasonic sensor in monitoring mechanism, and the mutual cooperation between the multiple datum plates set in the cofferdam main part, can real -time scanning the position of multiple datum plates, continuously measures the distance with each target point of cofferdam main part, and compares with initial position, to judge whether cofferdam main part is deformed and subsides, according to the monitoring result carries out the warning of early warning signal, has promoted the accuracy of sandbag cofferdam main part monitoring.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering construction technology, specifically to a sandbag cofferdam deformation monitoring and early warning device. Background Technology

[0002] Sandbag cofferdams are temporary water-retaining structures commonly used in water conservancy projects, bridge construction, and river management. Their purpose is to create a dry construction environment with no water or low water levels in a specific area. The core principle is to use geotextile sandbags filled with sand or other local materials and stack them layer by layer to form a dense retaining wall or dam that can withstand water pressure. However, under the action of water flow pressure, wave erosion, and foundation settlement, they are prone to deformation such as bulging and settlement. Therefore, real-time and effective deformation monitoring of sandbag cofferdams is a key link in achieving safety early warning and ensuring the smooth progress of the project.

[0003] A search revealed that Chinese patent CN221077611U discloses a sandbag cofferdam deformation monitoring and early warning device, including a river channel, a cofferdam body, and a monitoring fence. The cofferdam body is formed by stacking multiple layers of geotextile sandbags on the inner side of the river channel, and a monitoring fence is set parallel to the water-repellent side of the cofferdam body. In this utility model, by placing the monitoring fence on the water-repellent side of the cofferdam body, the positioning plates at both ends of the monitoring fence are connected to the riverbank using multiple positioning rods, and multiple monitoring blocks of the monitoring fence are set facing the cofferdam body. When the cofferdam body deforms, the protruding part of the cofferdam body impacted by the water flow contacts the monitoring blocks, thereby gradually pushing the monitoring blocks to press the pressure sensor on the monitoring fence, which is wrapped in a waterproof leather sleeve. Since each monitoring block is equipped with a corresponding audible and visual alarm, when the pressure sensor of one monitoring block detects pressure data, the PLC controller activates the audible and visual alarm corresponding to that monitoring block to remind personnel to perform timely maintenance.

[0004] In existing technologies for detecting sandbag cofferdams, such as the aforementioned patent, only horizontal deformation monitoring is possible, but vertical settlement of the sandbags cannot be monitored. If uneven settlement occurs and timely warnings are not issued, accidents such as localized slippage may occur. Furthermore, pressure sensors are easily damaged in environments with strong water flow impacts over long periods, which affects the accuracy of pressure sensor data monitoring and reduces reliability during use. Based on this, a sandbag cofferdam deformation monitoring and early warning device is proposed to solve the above problems. Utility Model Content

[0005] Based on the above description, this utility model provides a sandbag cofferdam deformation monitoring and early warning device to solve the problems of not being able to monitor the vertical settlement of sandbags and the pressure sensors being easily damaged in a long-term environment with strong water flow impact.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a sandbag cofferdam deformation monitoring and early warning device, comprising a river channel, a cofferdam body and a monitoring panel; The main body of the cofferdam is formed by stacking multiple layers of geotextile sandbags in the river channel, and the monitoring railing is set parallel to the backwater side of the main body of the cofferdam. Support frames are fixed at both ends of the lower surface of the monitoring railing. Two monitoring mechanisms for monitoring the deformation of the sandbag cofferdam are set on one side of the monitoring railing, and a driving mechanism for driving the horizontal movement of the monitoring mechanism is set on the back of the monitoring railing. The monitoring mechanism includes two movable plates set on one side of the monitoring panel, multiple ultrasonic sensors, and an adjusting component for adjusting the angle of the multiple ultrasonic sensors. The two movable plates are set at different heights on one side of the monitoring panel.

[0007] Through the above technical solution, by setting up ultrasonic sensors in the monitoring mechanism and cooperating with each other among multiple reference plates set in the main body of the cofferdam, the positions of multiple reference plates can be scanned in real time, the distances to various target points in the main body of the cofferdam can be continuously measured, and the distances can be compared with the initial positions to determine whether the main body of the cofferdam is deformed or settled. Based on the monitoring results, early warning signals are issued, thus improving the accuracy of monitoring the main body of the sandbag cofferdam.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the adjusting component includes a mounting hole on the front of the movable plate, a protective shell is fixed to the outer surface of the ultrasonic sensor, and rotating shafts are fixed to both sides of the protective shell. The opposite sides of the two rotating shafts are rotatably connected to the inner side of the movable plate through bearings.

[0010] Through the above technical solution, the adjustable component can adjust the angle of the ultrasonic sensor through the rotating shaft, thereby enabling the scanning of reference plates at different heights on the main body of the sandbag cofferdam.

[0011] Furthermore, the left side of the movable plate is threadedly connected to a plurality of threaded rods with one end passing through and extending into the mounting hole, and the left side of the rotating shaft is provided with a threaded hole, and the threaded rods are threadedly connected to the threaded hole.

[0012] The above technical solution allows for the fixing of the ultrasonic sensor after it has been rotated to a suitable angle by setting the threaded rod and threaded hole to be connected by threads.

[0013] Furthermore, multiple ultrasonic sensors are evenly distributed within the cavity of the mounting hole, and multiple audible and visual alarms are fixed on the upper surface of the monitoring panel.

[0014] Through the above technical solution, the sound and light alarm can issue an alarm to remind staff when the monitoring results differ from the initial results.

[0015] Furthermore, the driving mechanism includes a motor fixed to the back of the monitoring panel, the output shaft of the motor passing through the back of the monitoring panel and extending into the inner cavity of the monitoring panel and fixed with a rotating gear, toothed plates meshing with both the upper and lower sides of the rotating gear, and connecting plates fixed to the front of both toothed plates. T-shaped guide rails are fixed on opposite sides of the inner top and bottom walls of the monitoring panel. Guide grooves adapted to the size of the T-shaped guide rails are opened on opposite sides of the two toothed plates. The toothed plates and the T-shaped guide rails are slidably connected.

[0016] Through the above technical solution, the drive mechanism can drive the two connecting plates to move horizontally through gear transmission, thereby driving the movable plate to move, which in turn enables multiple ultrasonic sensors to move horizontally and scan multiple reference plates.

[0017] Furthermore, horizontal holes are provided at both the top and bottom ends of one side of the monitoring panel, and one side of the connecting plate passes through the horizontal holes and extends to the outside of the monitoring panel and is fixed to the movable plate.

[0018] The above technical solution allows the horizontal holes to facilitate the movement of the connecting plate in the horizontal direction.

[0019] Furthermore, two insertion rods are fixed to the lower surface of the support frame, and both insertion rods are inserted into the riverbank.

[0020] The above technical solution enables the installation of the insertion rod to fix the monitoring barrier, ensuring that the monitoring barrier will not tip over.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. By setting up ultrasonic sensors in the monitoring mechanism and cooperating with each other among multiple reference plates set in the main body of the cofferdam, the position of multiple reference plates can be scanned in real time, the distance to each target point of the main body of the cofferdam can be continuously measured and compared with the initial position to determine whether the main body of the cofferdam is deformed and settled. Based on the monitoring results, early warning signals are issued to remind, thus improving the accuracy of monitoring the main body of the sandbag cofferdam. 2. The drive mechanism is designed to drive the two connecting plates to move horizontally via gear transmission, thereby moving the movable plate and enabling multiple ultrasonic sensors to move horizontally, allowing multiple reference plates to be scanned. Attached Figure Description

[0022] Figure 1A schematic diagram of the overall structure of a sandbag cofferdam deformation monitoring and early warning device provided in this embodiment of the present invention; Figure 2 This is a side view schematic diagram of the monitoring panel structure according to an embodiment of this utility model; Figure 3 This is a front view schematic diagram of the external structure of the monitoring panel in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the monitoring mechanism according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the threaded hole structure in an embodiment of the present invention; Figure 6 This is a schematic diagram of the drive mechanism in an embodiment of the present invention.

[0023] Attached reference numerals: 1. River channel; 2. Main body of the cofferdam; 3. Monitoring panel; 4. Support frame; 5. Monitoring mechanism; 51. Movable plate; 52. Ultrasonic sensor; 53. Mounting hole; 54. Protective shell; 55. Rotating shaft; 56. Threaded rod; 57. Threaded hole; 58. Audible and visual alarm; 6. Drive mechanism; 61. Motor; 62. Rotating gear; 63. Gear plate; 64. Connecting plate; 65. T-shaped guide rail; 66. Transverse hole; 7. Insert rod. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] Example: Reference Figure 1 A sandbag cofferdam deformation monitoring and early warning device includes a river channel 1, a cofferdam body 2, and a monitoring panel 3. The cofferdam body 2 is formed by stacking multiple layers of geotextile sandbags in the river channel 1, and the monitoring panel 3 is set parallel to the backwater side of the cofferdam body 2. Support frames 4 are fixed at both ends of the lower surface of the monitoring panel 3. Two monitoring mechanisms 5 for monitoring the deformation of the sandbag cofferdam are set on one side of the monitoring panel 3, and a driving mechanism 6 for driving the horizontal movement of the monitoring mechanism 5 is set on the back of the monitoring panel 3.

[0027] Two rods 7 are fixed to the lower surface of the support frame 4. Both rods 7 are inserted into the riverbank of the river channel 1. The arrows in the attached figure indicate the direction of water flow.

[0028] refer to Figures 3 to 5 The monitoring mechanism 5 includes two movable plates 51 set on one side of the monitoring railing 3, multiple ultrasonic sensors 52, and an adjusting component for adjusting the angle of the multiple ultrasonic sensors 52; the two movable plates 51 are set at different heights on one side of the monitoring railing 3, and the multiple ultrasonic sensors 52 set at different heights can cover different height areas of the cofferdam body 2.

[0029] The adjusting component includes a mounting hole 53 on the front of the movable plate 51. A protective shell 54 is fixed to the outer surface of the ultrasonic sensor 52. Rotating shafts 55 are fixed on both sides of the protective shell 54. The opposite sides of the two rotating shafts 55 are rotatably connected to the inner side of the movable plate 51 through bearings. The protective shell 54 can protect the service life of the ultrasonic sensor 52. The angle of the ultrasonic sensor 52 can be adjusted by bending the protective shell 54.

[0030] In this embodiment, the left side of the movable plate 51 is threaded with a plurality of threaded rods 56, one end of which passes through and extends into the mounting hole 53. The left side of the rotating shaft 55 is provided with a threaded hole 57. The threaded rods 56 are threadedly connected to the threaded hole 57. After the angle of the ultrasonic sensor 52 is adjusted, the threaded rods 56 can be screwed into the threaded hole 57, thereby fixing the angle of the ultrasonic sensor 52 so as to be able to scan reference plates of different heights.

[0031] refer to Figure 2 Multiple ultrasonic sensors 52 are evenly distributed in the inner cavity of the mounting hole 53. Multiple audible and visual alarms 58 are fixed on the upper surface of the monitoring plate 3. Each ultrasonic sensor 52 can monitor the deformation of a certain area. When a certain area of ​​the cofferdam body 2 is deformed, only the ultrasonic sensor 52 of the corresponding area will trigger a signal and send it to the controller, thereby enabling precise positioning of the deformation location of the cofferdam body 2.

[0032] refer to Figure 2 and Figure 6 The drive mechanism 6 includes a motor 61 fixed to the back of the monitoring panel 3. The output shaft of the motor 61 passes through the back of the monitoring panel 3 and extends into the inner cavity of the monitoring panel 3, and a rotating gear 62 is fixed thereon. The upper and lower sides of the rotating gear 62 are meshed with toothed plates 63. A connecting plate 64 is fixed to the front of each of the two toothed plates 63. T-shaped guide rails 65 are fixed to the opposite sides of the inner top wall and inner bottom wall of the monitoring panel 3. Guide grooves adapted to the size of the T-shaped guide rails 65 are opened on the opposite sides of the two toothed plates 63. The toothed plates 63 and the T-shaped guide rails 65 are slidably connected.

[0033] The monitoring panel 3 has horizontal holes 66 at both the top and bottom ends on one side. One side of the connecting plate 64 passes through the horizontal holes 66 and extends to the outside of the monitoring panel 3 and is fixed to the movable plate 51. The horizontal holes 66 facilitate the horizontal movement of the movable plate 51 by the connecting plate 64.

[0034] During use, reference plates need to be fixed at different heights on the main body 2 of the sandbag cofferdam, and the initial coordinates of each reference plate need to be recorded. By starting the motor 61, the output shaft of the motor 61 rotates, driving the rotating gear 62 to rotate. The rotation of the rotating gear 62 causes the two toothed plates 63 meshed on its upper and lower sides to move relative to each other or in opposite directions. At this time, the two toothed plates 63 slide on the outer surface of the two T-shaped guide rails 65. The movement of the two toothed plates 63 synchronously drives the connecting plate 64 fixed on it to move synchronously. The movement of the connecting plate 64 causes the movable plate 51 and the multiple ultrasonic sensors 52 set on it to move synchronously. In this way, the coordinates of the reference plates on the main body 2 of the cofferdam can be scanned and compared with the initial coordinates of the reference plates. If there is a deviation between the existing coordinates and the reference coordinates, the controller can send a signal to the audible and visual alarm 58, so that the alarm sound emitted by the audible and visual alarm 58 can be used to remind the staff whether the main body 2 of the cofferdam is deformed.

[0035] The control method of this utility model is to achieve automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sandbag cofferdam deformation monitoring and early warning device, comprising a river channel (1), a cofferdam body (2), and a monitoring panel (3); Its features are, The main body of the cofferdam (2) is formed by stacking multiple layers of geotextile sandbags in the river channel (1), and the monitoring panel (3) is set parallel to the back side of the main body of the cofferdam (2). Support frames (4) are fixed at both ends of the lower surface of the monitoring panel (3). Two monitoring mechanisms (5) for monitoring the deformation of the sandbag cofferdam are set on one side of the monitoring panel (3). A driving mechanism (6) for driving the monitoring mechanism (5) to move horizontally is set on the back of the monitoring panel (3). The monitoring mechanism (5) includes two movable plates (51) set on one side of the monitoring panel (3), multiple ultrasonic sensors (52), and an adjusting component for adjusting the angle of the multiple ultrasonic sensors (52); The two movable plates (51) are set at different heights on one side of the monitoring panel (3).

2. The sandbag cofferdam deformation monitoring and early warning device according to claim 1, characterized in that, The adjusting component includes a mounting hole (53) on the front of the movable plate (51). A protective shell (54) is fixed on the outer surface of the ultrasonic sensor (52). Rotating shafts (55) are fixed on both sides of the protective shell (54). The opposite sides of the two rotating shafts (55) are rotatably connected to the inner side of the movable plate (51) through bearings.

3. The sandbag cofferdam deformation monitoring and early warning device according to claim 2, characterized in that, The left side of the movable plate (51) is threaded with a plurality of threaded rods (56) that extend through and into the mounting hole (53) at one end. The left side of the rotating shaft (55) is provided with a threaded hole (57), and the threaded rods (56) are threadedly connected to the threaded hole (57).

4. The sandbag cofferdam deformation monitoring and early warning device according to claim 3, characterized in that, Multiple ultrasonic sensors (52) are evenly distributed in the inner cavity of the mounting hole (53), and multiple audible and visual alarms (58) are fixed on the upper surface of the monitoring panel (3).

5. The sandbag cofferdam deformation monitoring and early warning device according to claim 1, characterized in that, The drive mechanism (6) includes a motor (61) fixed on the back of the monitoring panel (3). The output shaft of the motor (61) passes through the back of the monitoring panel (3) and extends into the inner cavity of the monitoring panel (3) and is fixed with a rotating gear (62). The upper and lower sides of the rotating gear (62) are meshed with toothed plates (63), and the front of the two toothed plates (63) is fixed with connecting plates (64). The monitoring panel (3) has T-shaped guide rails (65) fixed on opposite sides of its inner top and bottom walls. The two toothed plates (63) have guide grooves on opposite sides that are adapted to the size of the T-shaped guide rails (65). The toothed plates (63) and the T-shaped guide rails (65) are slidably connected.

6. The sandbag cofferdam deformation monitoring and early warning device according to claim 5, characterized in that, The monitoring panel (3) has horizontal holes (66) at both the top and bottom ends on one side. The connecting plate (64) extends through the horizontal holes (66) to the outside of the monitoring panel (3) and is fixed to the movable plate (51).

7. The sandbag cofferdam deformation monitoring and early warning device according to claim 1, characterized in that, Two rods (7) are fixed to the lower surface of the support frame (4), and both rods (7) are inserted into the riverbank of the river channel (1).

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