A concrete overfill monitoring device

Abstract

The application relates to a concrete overfilling monitoring device, which comprises a lowering guide pipe, the top of the lowering guide pipe being open, the bottom of the lowering guide pipe being provided with a limiting seat, a through hole communicating with the lowering guide pipe being formed in the limiting seat; a monitoring probe, the monitoring probe being located in the lowering guide pipe and being provided at the bottom with an impeller extending out of the lowering guide pipe, a motor driving the impeller to rotate being arranged in the monitoring probe, and a sensor detecting the current or rotating speed of the motor being arranged in the monitoring probe. The concrete overfilling monitoring device places the monitoring probe in the lowering guide pipe. The monitoring probe is located in the lowering guide pipe and is lowered to the concrete pouring interface setting elevation of the cast-in-place pile along with the lowering guide pipe. When the concrete is poured, the motor drives the impeller located outside the lowering guide pipe to rotate. When the concrete pouring interface of the cast-in-place pile reaches the impeller, the rotation of the impeller is hindered. The sensor can judge that the concrete pouring interface reaches the setting elevation by detecting the current or rotating speed change of the motor, so that simple, accurate and safe monitoring can be realized.

Description

Technical Field

[0001] This application relates to the field of pile foundation construction technology, and in particular to a concrete over-pouring monitoring device. Background Technology

[0002] Cast-in-place pile foundation engineering is widely used in large-scale projects such as high-rise buildings, bridges, ports and wharves, offshore oil platforms, and nuclear power plants, and has become one of the most important forms of foundation engineering in engineering construction.

[0003] During the concrete pouring process, the elevation may be higher or lower than the required elevation. If it is higher than the required elevation, it will result in material waste and increase construction costs. If it is lower than the required elevation, it will greatly affect the quality of the pile.

[0004] In order to determine the location of the concrete pouring interface, the commonly used method in previous engineering practices was to divide the total amount of concrete poured by the area of ​​the excavation section to obtain the height of the concrete pouring. However, this method has too low accuracy and too large measurement error, and cannot guide actual construction.

[0005] Alternatively, a concrete elevation measuring device—an over-pouring control device—can be used. The over-pouring control device is tied to the rebar cage with nylon cable ties for testing. During the pulling process, if the nylon cable ties are repeatedly broken, the cable may be broken and communication may fail. In severe cases, the over-pouring control device may fall into the pit, causing irreparable damage. Summary of the Invention

[0006] This application provides a concrete over-pouring monitoring device to solve the problem in related technologies where nylon cable ties are used to tie the over-pouring controller to the rebar cage for concrete pouring interface detection, and the cable may break or communication may fail during the pulling process.

[0007] This application provides a concrete over-pouring monitoring device, including: The lowering conduit has an open top and a limiting seat at the bottom, with a through hole on the limiting seat communicating with the lowering conduit. The monitoring probe is located inside the lowering guide tube and has an impeller extending out of the lowering guide tube at its bottom. The monitoring probe contains a motor that drives the impeller to rotate and a sensor that detects the current or speed of the motor.

[0008] In some embodiments: a rope is suspended from the top of the monitoring probe, and a cable connecting the motor and the sensor is provided; a stabilizing positioning ring is provided on the outer periphery of the monitoring probe and is coaxially slidably connected to the lowering conduit.

[0009] In some embodiments, an alarm connected to the cable is also included.

[0010] In some embodiments: the lowering conduit is provided in multiple segments, and the multiple segments of the lowering conduit are connected end to end in sequence through pipe joints, and the lowering conduit is a PVC pipe.

[0011] In some embodiments: the limiting seat includes a sleeve coaxially disposed with the lowering guide tube, and a limiting plate connected to the bottom of the sleeve, the through hole being located on the limiting plate, and the sleeve being fixedly connected to the lowering guide tube.

[0012] In some embodiments: the monitoring probe is a cylindrical structure of a set length, and a magnetic attraction mechanism is provided between the limiting seat and the monitoring probe to attract the monitoring probe onto the limiting seat.

[0013] In some embodiments: the magnetic attraction mechanism includes a first annular magnet fixed on the limiting seat, and an annular carbon steel or a second annular magnet fixed at the bottom of the monitoring probe; Alternatively, the magnetic attraction mechanism may include an annular carbon steel or a second annular magnet fixed on the limiting seat, and a first annular magnet fixed on the bottom of the monitoring probe.

[0014] In some embodiments: the bottom of the monitoring probe is rotatably connected to a rotating shaft, one end of the rotating shaft is connected to the motor, the other end of the rotating shaft is connected to the impeller, the diameter of the impeller is smaller than the diameter of the through hole, and the diameter of the monitoring probe is larger than the diameter of the through hole.

[0015] In some embodiments: the monitoring probe includes a cylindrical stainless steel housing, and the motor and sensor are fixed inside the cylindrical stainless steel housing.

[0016] In some embodiments: the monitoring probe is equipped with a battery that connects the motor and the sensor, and a controller that connects to the motor and the sensor. The controller is connected to an alarm via a wireless transceiver module.

[0017] The beneficial effects of the technical solution provided in this application include: This application provides a concrete over-pouring monitoring device. The concrete over-pouring monitoring device of this application is equipped with a lowering guide tube, the top of which is open and the bottom of which is equipped with a limiting seat. The limiting seat has a through hole that communicates with the lowering guide tube. The monitoring probe is located inside the lowering guide tube and has an impeller extending out of the lowering guide tube at its bottom. The monitoring probe is equipped with a motor that drives the impeller to rotate and a sensor that detects the current or speed of the motor.

[0018] Therefore, the concrete over-pouring monitoring device of this application places the monitoring probe inside the lowering guide pipe. The length of the lowering guide pipe can be determined according to the height of the concrete pouring interface set at the borehole opening. The monitoring probe is located inside the lowering guide pipe and is lowered along with the lowering guide pipe to the set elevation of the concrete pouring interface of the cast-in-place pile. During concrete pouring, the motor drives the impeller located outside the lowering guide pipe to rotate. When the concrete pouring interface of the cast-in-place pile reaches the impeller, it resists its rotation. The sensor can determine that the concrete pouring interface has reached the set elevation by detecting changes in the motor's current or speed. This application is easy to install, provides accurate monitoring, and has high safety in use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a structural block diagram of the monitoring probe according to an embodiment of this application.

[0021] Figure label: 1. Lowering guide tube; 2. Monitoring probe; 3. Impeller; 4. Limit seat; 5. Straightening positioning ring; 6. First annular magnet; 7. Motor; 8. Sensor; 9. Controller; 10. Battery; 11. Wireless transceiver module; 12. Alarm. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This application provides a concrete over-pouring monitoring device, which can solve the problem that when using nylon cable ties to tie the over-pouring controller to the rebar cage for concrete pouring interface detection, the cable may break and communication may fail during the pulling process.

[0024] See Figure 1 and Figure 2 As shown in the figure, this application provides a concrete over-pouring monitoring device, including: A lowering guide pipe 1 is provided, with an open top and a limiting seat 4 at the bottom. A through hole is provided on the limiting seat 4 to connect the lowering guide pipe 1. The height of the lowering guide pipe 1 is determined according to the height of the concrete pouring interface of the cast-in-place pile from the hole opening. In use, the lowering guide pipe 1 is suspended inside the cast-in-place pile.

[0025] The monitoring probe 2 is located inside the lowering guide tube 1, which provides guidance and positioning for the monitoring probe 2 to monitor the concrete pouring interface. An impeller 3 is provided at the bottom of the monitoring probe 2, extending out of the lowering guide tube 1. The monitoring probe 2 contains a motor 7 that drives the impeller 3 to rotate, and a sensor 8 that detects the current or speed of the motor 7.

[0026] The concrete over-pouring monitoring device of this embodiment places the monitoring probe 2 inside the lowering guide tube 1. The length of the lowering guide tube 1 is determined according to the height of the concrete pouring interface of the cast-in-place pile from the borehole opening. The monitoring probe 2 is located inside the lowering guide tube 1 and is lowered along with the lowering guide tube 1 to the set elevation of the concrete pouring interface of the cast-in-place pile.

[0027] During concrete pouring, motor 7 drives impeller 3, located outside the lowering guide pipe 1, to rotate. When the concrete pouring interface of the pile reaches impeller 3, it hinders the rotation. Sensor 8 can determine that the concrete pouring interface has reached the set elevation by detecting changes in the current or speed of motor 7. The monitoring probe 2 and the lowering guide pipe 1 of this application are easy to install, the monitoring probe 2 provides accurate monitoring, and the use is highly safe.

[0028] In some alternative embodiments: see Figure 1 and Figure 2 As shown, this application embodiment provides a concrete over-pouring monitoring device. The top of the monitoring probe 2 of the concrete over-pouring monitoring device is suspended by a rope, which is used to pull or lower the monitoring probe 2 in the lowering guide tube 1, and a cable connecting the motor 7 and the sensor 8, which is used to supply power to the motor 7 and the sensor 8 or transmit monitoring signals.

[0029] A centering and positioning ring 5 is provided on the outer periphery of the monitoring probe 2 and is slidably connected to the lowering guide tube 1. The outer wall of the centering and positioning ring 5 is fitted with the inner wall of the lowering guide tube 1 with a sliding clearance, so that when the monitoring probe 2 is lifted or lowered, the monitoring probe 2 and the lowering guide tube 1 remain coaxial, so that the impeller 3 can smoothly enter or exit the through hole on the limiting seat 4.

[0030] The monitoring probe 2 also includes an alarm 12 connected to a cable. The alarm 12 is preferably an audible and visual alarm. When the sensor 8 detects a sudden change in the speed and current of the motor 7, it sends an audible and visual signal to the alarm 12 through the cable. At this time, it reminds the construction personnel that the concrete pouring interface of the current cast-in-place pile has reached the set elevation and the concrete pouring can be stopped.

[0031] In some alternative embodiments: see Figure 1 As shown in the figure, this application embodiment provides a concrete over-pouring monitoring device. The lowering guide pipe 1 of the concrete over-pouring monitoring device is provided in multiple sections, and the multiple sections of the lowering guide pipe 1 are connected end to end in sequence through pipe joints. The lowering guide pipe 1 is a PVC pipe. The lowering guide pipe 1 is provided in multiple sections, and the specific length of the lowering guide pipe 1 can be lengthened or shortened according to the height of the concrete pouring interface of the cast-in-place pile from the borehole opening.

[0032] The lowering conduit 1 is made of PVC pipe, which has advantages such as light weight, low cost, and ease of purchase and processing. The limiting seat 4 includes a sleeve coaxially arranged with the lowering conduit 1, and a limiting plate connected to the bottom of the sleeve. The through hole is located on the limiting plate, and the sleeve is fixedly connected to the lowering conduit 1. The sleeve can be coaxially located inside the lowering conduit 1 or coaxially sleeved outside the lowering conduit 1. When the monitoring probe 2 reaches the limiting plate, the limiting plate prevents the monitoring probe 2 from continuing to be lowered.

[0033] In some alternative embodiments: see Figure 1 As shown in the illustration, this application provides a concrete over-pouring monitoring device. The monitoring probe 2 of this device has a cylindrical structure of a set length. A magnetic attraction mechanism is provided between the limiting seat 4 and the monitoring probe 2 to attract the monitoring probe 2 onto the limiting seat 4. When the monitoring probe 2 reaches the limiting plate, the magnetic attraction mechanism attracts the monitoring probe 2 onto the limiting seat 4, preventing the monitoring probe 2 from moving and interfering with the monitoring results when the impeller 3 is used to monitor the concrete pouring interface of the cast-in-place pile. After monitoring is completed, it can be pulled up to overcome the attraction of the magnetic attraction mechanism for easy retrieval.

[0034] In some alternative embodiments: see Figure 1 As shown in the illustration, this application provides a concrete over-pouring monitoring device. The magnetic attraction mechanism of the device includes a first annular magnet 6 fixed on a limiting seat 4, and an annular carbon steel or second annular magnet fixed on the bottom of the monitoring probe 2. Alternatively, the magnetic attraction mechanism includes an annular carbon steel or second annular magnet fixed on a limiting seat 4, and a first annular magnet 6 fixed on the bottom of the monitoring probe 2.

[0035] The first annular magnet 6 can attract each other with the annular carbon steel or the second annular magnet. The inner diameter of the first annular magnet 6, the annular carbon steel, and the second annular magnet is larger than the outer diameter of the impeller 3, which makes it easier for the impeller 3 to pass smoothly through the first annular magnet 6, the annular carbon steel, and the second annular magnet when the monitoring probe 2 is lowered.

[0036] The bottom of the monitoring probe 2 is rotatably connected to a rotating shaft. One end of the rotating shaft is connected to the motor 7, and the other end of the rotating shaft is connected to the impeller 3. The diameter of the impeller 3 is smaller than the diameter of the through hole, so that the impeller 3 can smoothly pass through the through hole of the limiting seat 4. The diameter of the monitoring probe 2 is larger than the diameter of the through hole, so that the monitoring probe 2 is positioned inside the lowering guide tube 1.

[0037] The monitoring probe 2 includes a cylindrical stainless steel housing, which provides the probe with good structural strength and corrosion resistance, facilitates surface cleaning, and extends the service life of the probe. The motor 7 and the sensor 8 are fixed inside the cylindrical stainless steel housing.

[0038] In some alternative embodiments: see Figure 2 As shown, this application embodiment provides a concrete over-pouring monitoring device. The monitoring probe 2 of the concrete over-pouring monitoring device is equipped with a battery 10 connected to a motor 7 and a sensor 8, and a controller 9 connected to the motor 7 and the sensor 8. The controller 9 is connected to a wireless transceiver module 11, which is wirelessly connected to an alarm 12.

[0039] In this embodiment, the monitoring probe 2 integrates a motor 7, a sensor 8, a battery 10, a controller 9, and a wireless transceiver module 11. The wireless transceiver module 11 communicates wirelessly with the alarm 12, eliminating the need for a cable connecting the monitoring probe 2 to the alarm 12. The controller 9 can be connected to the alarm 12 via the wireless transceiver module 11. The alarm 12 can be a mobile phone or other terminal device, and the wireless transceiver module 11 can be a Bluetooth module.

[0040] The controller 9 controls the motor 7 to drive the impeller 3 to rotate, and receives the speed or current signal of the motor 7 monitored by the sensor 8. By judging the change of the speed or current signal of the motor 7 monitored by the sensor 8, it judges whether the concrete pouring interface of the cast-in-place pile has reached the set elevation, and sends the judgment result to the alarm 12 through the wireless transceiver module 11.

[0041] Working principle This application provides a concrete over-pouring monitoring device. The concrete over-pouring monitoring device of this application is equipped with a lowering conduit 1, the top of which is open and the bottom of which is equipped with a limiting seat 4. The limiting seat 4 has a through hole that communicates with the lowering conduit 1. The monitoring probe 2 is located inside the lowering conduit 1 and has an impeller 3 extending out of the lowering conduit 1 at its bottom. The monitoring probe 2 is equipped with a motor 7 that drives the impeller 3 to rotate and a sensor 8 that detects the current or speed of the motor 7.

[0042] Therefore, the concrete over-pouring monitoring device of this application places the monitoring probe 2 inside the lowering guide tube 1. The length of the lowering guide tube 1 can be determined according to the height of the concrete pouring interface set at the borehole opening. The monitoring probe 2 is located inside the lowering guide tube 1 and is lowered along with the lowering guide tube 1 to the set elevation of the concrete pouring interface of the cast-in-place pile. During concrete pouring, the motor 7 drives the impeller 3 located outside the lowering guide tube 1 to rotate. When the concrete pouring interface of the cast-in-place pile reaches the impeller 3, it hinders the rotation. The sensor 8 can determine that the concrete pouring interface has reached the set elevation by detecting the change in the current or speed of the motor 7. This application is easy to install, accurate in monitoring, and highly safe to use.

[0043] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A concrete overpour monitoring device, characterized by, include: The lowering conduit (1) has an open top and a limiting seat (4) at the bottom. The limiting seat (4) has a through hole that connects to the lowering conduit (1). The monitoring probe (2) is located inside the lowering guide tube (1) and has an impeller (3) extending out of the lowering guide tube (1) at its bottom. The monitoring probe (2) is equipped with a motor (7) that drives the impeller (3) to rotate, and a sensor (8) that detects the current or speed of the motor (7).

2. The concrete over-pouring monitoring device as described in claim 1, characterized in that: The top of the monitoring probe (2) is suspended by a rope and a cable connecting the motor (7) and the sensor (8). The outer periphery of the monitoring probe (2) is provided with a straightening positioning ring (5) that is slidably connected to the lowering guide tube (1).

3. The concrete over-pouring monitoring device as described in claim 2, characterized in that: It also includes an alarm (12) connected to the cable.

4. The concrete over-pouring monitoring device as described in claim 1, characterized in that: The lowering conduit (1) is provided in multiple sections, and the multiple sections of the lowering conduit (1) are connected end to end in sequence through pipe joints. The lowering conduit (1) is a PVC pipe.

5. The concrete over-pouring monitoring device as described in claim 1, characterized in that: The limiting seat (4) includes a sleeve coaxially arranged with the lowering guide tube (1) and a limiting plate connected to the bottom of the sleeve. The through hole is located on the limiting plate, and the sleeve is fixedly connected to the lowering guide tube (1).

6. A concrete over-pouring monitoring device as described in claim 1 or 5, characterized in that: The monitoring probe (2) is a cylindrical structure of a set length. A magnetic attraction mechanism is provided between the limiting seat (4) and the monitoring probe (2) to attract the monitoring probe (2) onto the limiting seat (4).

7. The concrete over-pouring monitoring device as described in claim 6, characterized in that: The magnetic attraction mechanism includes a first annular magnet (6) fixed on the limiting seat (4) and an annular carbon steel or second annular magnet fixed at the bottom of the monitoring probe (2). Alternatively, the magnetic attraction mechanism may include an annular carbon steel or a second annular magnet fixed on the limiting seat (4), and a first annular magnet (6) fixed on the bottom of the monitoring probe (2).

8. The concrete over-pouring monitoring device as described in claim 1, characterized in that: The bottom of the monitoring probe (2) is rotatably connected to a rotating shaft. One end of the rotating shaft is connected to the motor (7), and the other end of the rotating shaft is connected to the impeller (3). The diameter of the impeller (3) is smaller than the diameter of the through hole, and the diameter of the monitoring probe (2) is larger than the diameter of the through hole.

9. The concrete over-pouring monitoring device as described in claim 1, characterized in that: The monitoring probe (2) includes a cylindrical stainless steel housing, and the motor (7) and sensor (8) are fixed inside the cylindrical stainless steel housing.

10. A concrete over-pouring monitoring device as described in claim 1, characterized in that: The monitoring probe (2) is equipped with a battery (10) that connects the motor (7) and the sensor (8), and a controller (9) that connects to the motor (7) and the sensor (8). The controller (9) is connected to an alarm (12) via a wireless transceiver module (11).

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