Water conservancy project cofferdam monitoring device

Abstract

The utility model discloses water conservancy cofferdam monitoring devices relates to cofferdam monitoring technical field. The utility model discloses a vertical pipe and positioning assembly, the surface of vertical pipe is provided with locking mechanism, the surface fixedly connected with the mounting ring of vertical pipe, the positioning assembly includes two slope shells, and the opposite side of two slope shells is all fixedly connected with the mounting ring, the top of slope shell is provided with screw rod, and the bottom of screw rod penetrates slope shell and is connected with the briquetting, and the bottom of briquetting is provided with trapezoidal piece. The utility model discloses positioning assembly, utilizes slope shell and fixes in the borehole mouth part, and the trapezoidal piece is pressed down by rotating screw rod drive briquetting, and makes the ground insertion of pressing plate to insert the surrounding soil layer, and the vertical pipe is anchored fast before backfilling, prevents the vertical pipe displacement or inclination because of backfilling soil loose or uneven, maintains monitoring device initial position stable, avoids the problem of data distortion and false report, improves installation efficiency and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of cofferdam monitoring technology, and in particular relates to a cofferdam monitoring device for water conservancy projects. Background Technology

[0002] Monitoring of cofferdams in water conservancy projects refers to the real-time or periodic detection and evaluation of the safety, stability, and deformation of cofferdam structures during the construction of water conservancy projects. This is done to ensure construction safety and project progress. By measuring parameters such as displacement, settlement, and seepage flow of the cofferdam, potential risks can be identified in a timely manner and corresponding measures can be taken.

[0003] Chinese patent application CN217105174U discloses a clinometer tube for cofferdam monitoring, comprising multiple clinometer tube segments connected in sequence. The lowermost clinometer tube segment has a conical drill bit at its lower end, and the uppermost clinometer tube segment has a detachable top cover at its upper end. Adjacent clinometer tube segments are connected by a connector. Four first protrusions are evenly distributed on the clinometer tube segments, and the inner sidewall of each first protrusion forms a first groove. The connector includes a first sleeve fitted outside the connection between two adjacent clinometer tube segments. Four second protrusions are evenly distributed on the first sleeve, and a connecting rod is provided on the outer sidewall of each second protrusion. An arc-shaped plate is provided at the end of the connecting rod away from the first sleeve. This invention facilitates the stable connection of two adjacent clinometer tube segments to form a clinometer tube by using a connector. By providing a connecting rod and an arc-shaped plate on the outer sidewall of the first sleeve, the arc-shaped plate can be used to abut against the inner wall of the borehole, thus keeping the clinometer tube stable.

[0004] Although this patent facilitates the stable connection of two adjacent inclinometer tube segments to form an inclinometer tube by setting a connector, and prevents soil and other debris from entering the inclinometer tube by setting a top cover at the uppermost inclinometer tube segment, thus reducing monitoring errors and making it highly practical, after the inclinometer tube is inserted into the borehole and backfilled, the loose and unevenly distributed backfill soil is prone to settlement or slippage under the long-term effects of external water and soil pressure and its own weight. This causes the contact support between the inclinometer tube and the inner wall of the borehole to gradually loosen, making it impossible to maintain the initial stable state. Over time, the inclinometer tube will tilt or shift, resulting in distorted monitoring data and false alarms, which is not conducive to its use.

[0005] To address these issues, we have provided a monitoring device for cofferdams in water conservancy projects. Utility Model Content

[0006] The purpose of this utility model is to provide a monitoring device for cofferdams in water conservancy projects. Through the cooperation of positioning components and locking mechanisms, it solves the problem that existing monitoring devices for cofferdams in water conservancy projects do not have a self-locking function. During the backfilling process, due to the loose and uneven texture of the backfill soil, the monitoring device is easily tilted under the influence of external water and soil, resulting in distorted monitoring data and false alarms.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a monitoring device for cofferdams in water conservancy projects, comprising a riser and a positioning assembly. The riser has a locking mechanism on its surface and an installation ring fixedly connected to its surface. The positioning assembly includes two sloping shells, each fixedly connected to the installation ring on one side. A screw is provided at the top of each sloping shell, and the bottom of the screw penetrates the sloping shell and is connected to a pressure block. A trapezoidal block is provided at the bottom of the pressure block, and a pressure plate is fixedly connected to the bottom of the trapezoidal block. A ground plug is fixedly connected to the bottom of the pressure plate, and the bottom of the ground plug extends to the outside of the sloping shell. A first tension spring is fixedly connected between the pressure plate and the installation ring.

[0009] The present invention is further configured such that the locking mechanism includes a rotating sleeve, the inner wall of which is threadedly connected to the riser, a pressure tube is fixedly connected to the surface of the rotating sleeve, a compression ring is fixedly connected to the bottom of the pressure tube, a fixing sleeve is fixedly connected to the bottom of the riser surface, and a retainer is provided on the surface of the fixing sleeve. The rotating sleeve can rotate on the surface of the riser, and the working height of the pressure tube and the compression ring is controlled by the engagement with the thread. The compression ring can compress the retainer, so that it unfolds and fits against the borehole wall, thereby locking the riser. Even if the backfill soil is affected by external water and soil, it will not cause the riser to tilt and falsely report.

[0010] The present invention is further configured such that the fixing device includes a movable plate, the surface of the fixing sleeve is movably connected to the movable plate, one side of the movable plate is fixedly connected to anti-slip teeth, the other side of the movable plate is fixedly connected to a triangular block, and the top of the fixing sleeve and the movable plate is fixedly connected to a second tension spring. The movable plate can be unfolded or folded, the anti-slip teeth can be inserted into the hole wall of the drilled hole, the triangular block can cooperate with the compression ring to control the unfolding of the movable plate, and the second tension spring can reset the movable plate when the triangular block is not compressed.

[0011] The present invention is further configured such that a conical head is fixedly connected to the bottom of the riser, a sealing cap is threadedly connected to the top of the riser, and a knob is fixedly connected to the top of the screw. The conical head can be inserted into the bottom of the drill hole for initial fixing of the riser, and the sealing cap can seal the riser to prevent backfill soil from entering the riser and affecting the installation of the inclinometer probe.

[0012] The present invention is further configured such that a sliding rod is fixedly connected between the top and bottom of the inner cavity of the slope shell, and a sliding sleeve is slidably connected to the surface of the sliding rod. The opposite sides of the two sliding sleeves are fixedly connected to the pressure plate. The sliding rod and the sliding sleeve can limit the pressure plate, so that it can be smoothly adjusted up and down.

[0013] The present invention is further configured such that the top of the slope shell is provided with a threaded hole for use with the screw, and the opposite sides of the two slope shells are provided with through holes for use with the ground insert. The threaded hole is used for adjusting the height of the pressure block by the screw, and the through hole allows the ground insert to pass through the slope shell and be inserted into the soil layer.

[0014] The present invention is further configured such that the top of the extrusion ring is provided with an arc-shaped slope, and an anti-slip turntable is fixedly connected to the surface of the rotating sleeve. The arc-shaped slope is used to smoothly extrude the inclined surface of the triangular block, and the anti-slip turntable facilitates the worker to rotate the rotating sleeve.

[0015] The present invention is further configured such that the anti-slip teeth are obliquely installed on one side of the movable plate, and the surface of the fixed sleeve is movably connected to the movable plate through a rotating shaft. The obliquely installed anti-slip teeth can improve the stability of the connection between the movable plate and the borehole wall, and the rotating shaft facilitates the unfolding or closing of the movable plate.

[0016] The present invention has the following beneficial effects.

[0017] 1. This utility model uses a positioning component to fix the slope shell at the borehole opening. The rotating screw drives the pressure block to press down the trapezoidal block, so that the pressure plate drives the ground plug to insert into the surrounding soil layer. Before backfilling, the riser is quickly anchored to prevent displacement or tilting of the riser due to loose or uneven backfill soil. This maintains the initial position stability of the monitoring device, avoids data distortion and false alarms, and improves installation efficiency and reliability.

[0018] 2. This utility model uses a locking mechanism to rotate the rotating sleeve on the riser thread, controlling the downward movement of the pressure pipe and the extrusion ring. The arc-shaped slope of the extrusion ring contacts the triangular block, causing the movable plate to unfold around the rotating axis, embedding the anti-slip teeth into the inner wall of the borehole. Even under long-term external water and soil pressure or backfill settlement, the riser can be kept stable, preventing monitoring errors caused by the tilt of the monitoring device, improving data accuracy and long-term safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 A three-dimensional diagram of a monitoring device for a cofferdam in a water conservancy project;

[0021] Figure 2This is a cross-sectional view of the slope shell in a monitoring device for a cofferdam in a water conservancy project.

[0022] Figure 3 Exploded view of the positioning component in the monitoring device for cofferdams in water conservancy projects;

[0023] Figure 4 A schematic diagram of the rotating sleeve, pressure pipe, and extrusion ring in a monitoring device for cofferdams in water conservancy projects;

[0024] Figure 5 This is a schematic diagram of the fixing device in the monitoring equipment for cofferdams in water conservancy projects.

[0025] In the attached diagram: 1. Riser; 2. Mounting ring; 3. Positioning assembly; 31. Sloping shell; 32. Screw; 33. Pressure block; 34. Trapezoidal block; 35. Pressure plate; 36. Ground insert; 37. First tension spring; 4. Locking mechanism; 41. Rotating sleeve; 42. Pressure tube; 43. Compression ring; 44. Fixing sleeve; 45. Fixer; 451. Movable plate; 452. Anti-slip teeth; 453. Triangular block; 454. Second tension spring; 5. Slide rod; 6. Slide sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5 This utility model is a monitoring device for cofferdams in water conservancy projects, including a riser 1 and a positioning component 3. A locking mechanism 4 is provided on the surface of the riser 1, and an installation ring 2 is fixedly connected to the surface of the riser 1. The positioning component 3 includes two slope shells 31, and the opposite sides of the two slope shells 31 are fixedly connected to the installation ring 2. A screw 32 is provided on the top of the slope shell 31, and the bottom of the screw 32 passes through the slope shell 31 and is connected to a pressure block 33. A trapezoidal block 34 is provided at the bottom of the pressure block 33, and a pressure plate 35 is fixedly connected to the bottom of the trapezoidal block 34. A ground plug 36 is fixedly connected to the bottom of the pressure plate 35, and the bottom of the ground plug 36 extends to the outside of the slope shell 31. A first tension spring 37 is fixedly connected between the pressure plate 35 and the installation ring 2.

[0028] Specifically: the installation ring 2 facilitates the installation and fixing of the slope shell 31, which can be clamped on the top of the cofferdam borehole to install the riser 1 inside the borehole. The screw 32 can control the height of the pressure block 33, which can squeeze the trapezoidal block 34 to control the movement of the pressure plate 35 and the ground plug 36. The ground plug 36 moves out of the outside of the slope shell 31 and inserts into the soil layers on both sides of the borehole to position the riser 1 and prevent the riser 1 from tilting during backfilling.

[0029] The locking mechanism 4 includes a rotating sleeve 41, the inner wall of which is threadedly connected to the riser 1. A pressure tube 42 is fixedly connected to the surface of the rotating sleeve 41, and a compression ring 43 is fixedly connected to the bottom of the pressure tube 42. A fixing sleeve 44 is fixedly connected to the bottom of the surface of the riser 1. A retainer 45 is provided on the surface of the fixing sleeve 44. The retainer 45 includes a movable plate 451, the surface of the fixing sleeve 44 is movably connected to the movable plate 451, an anti-slip tooth 452 is fixedly connected to one side of the movable plate 451, a triangular block 453 is fixedly connected to the other side of the movable plate 451, a second tension spring 454 is fixedly connected to the top between the fixing sleeve 44 and the movable plate 451, and a conical head is fixedly connected to the bottom of the riser 1. The top of the riser 1 is threaded with a sealing cap, the top of the screw 32 is fixedly connected with a knob, the top and bottom of the inner cavity of the slope shell 31 are fixedly connected with a slide rod 5, the surface of the slide rod 5 is slidably connected with a sliding sleeve 6, the opposite sides of the two sliding sleeves 6 are fixedly connected with the pressure plate 35, the top of the slope shell 31 is provided with a threaded hole for use with the screw 32, the opposite sides of the two slope shells 31 are provided with a through hole for use with the ground plug 36, the top of the extrusion ring 43 is provided with an arc slope, the surface of the rotating sleeve 41 is fixedly connected with an anti-slip turntable, the anti-slip teeth 452 are obliquely installed on one side of the movable plate 451, and the surface of the fixed sleeve 44 is movably connected to the movable plate 451 through a rotating shaft.

[0030] Specifically: the rotating sleeve 41 can rotate on the surface of the riser 1, and controls the working height of the pressure tube 42 and the compression ring 43 through the engagement with the thread. The compression ring 43 can compress the fixing device 45, so that it unfolds and fits against the hole wall of the drilled hole, thereby locking the riser 1. Even if the backfill soil is affected by external water and soil, it will not cause the riser 1 to tilt and falsely report. The movable plate 451 can unfold or close, the anti-slip teeth 452 can be inserted into the hole wall of the drilled hole, the triangular block 453 can cooperate with the compression ring 43 to control the unfolding of the movable plate 451, the second tension spring 454 can reset the movable plate 451 when the triangular block 453 is not compressed, and the conical head can be inserted into the bottom of the drilled hole. The section is used for the initial fixing of the riser 1. The sealing cover can seal the riser 1 to prevent backfill soil from entering the riser 1 and affecting the installation of the inclinometer probe. The sliding rod 5 and the sliding sleeve 6 can limit the pressure plate 35 so that it can be adjusted up and down smoothly. The threaded hole is used by the screw 32 to adjust the working height of the pressure block 33. The through hole allows the ground insert 36 to pass through the slope shell 31 and be inserted into the soil layer. The arc slope is used to smoothly compress the inclined surface of the triangular block 453. The anti-slip turntable makes it convenient for the workers to rotate the rotating sleeve 41. The inclined anti-slip teeth 452 can improve the stability of the connection between the movable plate 451 and the borehole wall. The rotating shaft makes it easy for the movable plate 451 to be unfolded or closed.

[0031] The working principle of this utility model is as follows: When installing the riser 1, it is first inserted into the drill hole and initially fixed by the conical head at the bottom. Then, the slope shell 31 is stuck at the entrance of the drill hole at the top. The screw 32 is rotated, which causes the pressure block 33 to move downward. The pressure block 33 presses the trapezoidal block 34, which pushes the pressure plate 35 and the ground plug 36 into the soil layer to prevent the riser 1 from shifting due to loose backfill soil. Then, the rotating sleeve 41 is rotated, which moves downward on the surface of the riser 1 through the thread and drives the pressure pipe 42. As the compression ring 43 moves downward, the arc-shaped slope of the compression ring 43 contacts the triangular block 453. After being compressed, the triangular block 453 pushes the movable plate 451 to unfold around the pivot, so that the anti-slip teeth 452 are embedded in the inner wall of the borehole, thereby locking the bottom of the riser 1. Even if the borehole is subjected to external water and soil pressure or backfill settlement for a long time after backfilling, it can remain stable. After opening the sealing cover, the inclinometer probe can be placed into the riser 1 for monitoring, preventing monitoring errors caused by the tilt of the monitoring device, improving data accuracy and long-term safety.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A monitoring device for cofferdams in water conservancy projects, comprising a riser (1) and a positioning component (3), characterized in that: The surface of the riser (1) is provided with a locking mechanism (4), and the surface of the riser (1) is fixedly connected with an installation ring (2); The positioning component (3) includes two slope shells (31), each of which is fixedly connected to the mounting ring (2) on one side. A screw (32) is provided on the top of the slope shell (31), and the bottom of the screw (32) passes through the slope shell (31) and is connected to a pressure block (33). A trapezoidal block (34) is provided on the bottom of the pressure block (33), and a pressure plate (35) is fixedly connected to the bottom of the trapezoidal block (34). A ground plug (36) is fixedly connected to the bottom of the pressure plate (35), and the bottom of the ground plug (36) extends to the outside of the slope shell (31). A first tension spring (37) is fixedly connected between the pressure plate (35) and the mounting ring (2).

2. The monitoring device for cofferdams in water conservancy projects according to claim 1, characterized in that: The locking mechanism (4) includes a rotating sleeve (41), the inner wall of which is threadedly connected to the riser (1), a pressure tube (42) is fixedly connected to the surface of the rotating sleeve (41), a compression ring (43) is fixedly connected to the bottom of the pressure tube (42), a fixing sleeve (44) is fixedly connected to the bottom of the surface of the riser (1), and a retainer (45) is provided on the surface of the fixing sleeve (44).

3. The monitoring device for cofferdams in water conservancy projects according to claim 2, characterized in that: The fixture (45) includes a movable plate (451), the surface of the fixing sleeve (44) is movably connected to the movable plate (451), one side of the movable plate (451) is fixedly connected to an anti-slip tooth (452), the other side of the movable plate (451) is fixedly connected to a triangular block (453), and the top between the fixing sleeve (44) and the movable plate (451) is fixedly connected to a second tension spring (454).

4. The monitoring device for cofferdams in water conservancy projects according to claim 1, characterized in that: The bottom of the riser (1) is fixedly connected to a conical head, the top of the riser (1) is threadedly connected to a sealing cap, and the top of the screw (32) is fixedly connected to a knob.

5. The monitoring device for cofferdams in water conservancy projects according to claim 1, characterized in that: A sliding rod (5) is fixedly connected between the top and bottom of the inner cavity of the slope shell (31). A sliding sleeve (6) is slidably connected to the surface of the sliding rod (5). The opposite sides of the two sliding sleeves (6) are fixedly connected to the pressure plate (35).

6. The monitoring device for cofferdams in water conservancy projects according to claim 1, characterized in that: The top of the slope shell (31) is provided with a threaded hole for use with the screw (32), and the opposite sides of the two slope shells (31) are provided with through holes for use with the ground plug (36).

7. The monitoring device for cofferdams in water conservancy projects according to claim 2, characterized in that: The top of the extrusion ring (43) is provided with an arc-shaped slope, and the surface of the rotating sleeve (41) is fixedly connected with an anti-slip turntable.

8. The monitoring device for cofferdams in water conservancy projects according to claim 3, characterized in that: The anti-slip teeth (452) are installed obliquely on one side of the movable plate (451), and the surface of the fixed sleeve (44) is movably connected to the movable plate (451) through a rotating shaft.

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