A monitoring device for controlling overfilling of cast-in-place pile concrete

Abstract

The present invention belongs to the technical field of equipment for monitoring overfilling of concrete, and in particular relates to a monitoring device for controlling overfilling of cast-in-place pile concrete, comprising two fixing clamps, the outer walls of the two fixing clamps being fixedly connected to a fixing box, the top end of the fixing box being fixedly connected to an arc-shaped wire tube, the top end of the arc-shaped wire tube being fixedly connected to a protective box, the bottom end of the protective box being provided with a through hole, and the through hole wall of the protective box being fixedly connected to a laser ranging sensor. The present invention enables the monitoring device for overfilling of cast-in-place pile concrete to not only be conveniently installed, monitor overfilling of concrete with high precision, and eliminate bubbles in concrete in a timely manner, but also provide laser ranging sensor protection and monitoring of the posture of the cast-in-place formwork, thereby improving the accuracy of monitoring overfilling of concrete, the effectiveness and reliability of the device, and the success rate of overfilling of cast-in-place pile concrete.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete overfilling monitoring equipment, and in particular relates to a monitoring device for controlling the overfilling of cast-in-place pile concrete. Background Art

[0002] Over-pouring of bored pile concrete refers to the phenomenon that the actual pouring volume exceeds the amount required for the designed pile top elevation when pouring concrete. Over-pouring of concrete can ensure that the strength of the pile top concrete meets the standard and avoid insufficient strength of the pile head due to slurry, sediment, etc. Monitoring the over-pouring volume is of great significance. First, it can judge the quality of the hole. If the over-pouring volume increases abnormally, it may be caused by problems such as hole wall collapse and diameter shrinkage. Second, it can control the amount of concrete used to prevent material waste and cost increase. Third, it helps to ensure the bearing capacity of the pile foundation and ensure the safety of the project structure. By monitoring the over-pouring volume, potential problems in construction can be discovered in time to ensure that the construction quality of bored piles meets the design requirements. For example, the patent with the patent authorization announcement number CN207280416U discloses a monitoring device for controlling the over-pouring of bored pile concrete.

[0003] Currently, pressure sensors are commonly used in monitoring overfill volume of cast-in-place concrete piles. However, this technology has significant limitations. For one thing, the pressure sensor must be fixed to a specific location in the reinforcement cage during installation and then removed and cleaned after construction, a complex, time-consuming, and labor-intensive process. Furthermore, the pressure sensor and its connecting cables occupy space within the concrete, which can easily interfere with monitoring data and affect the accuracy of overfill volume calculations.

[0004] In addition, existing monitoring devices generally lack the function of timely bubble elimination. Since bubbles generated during the concrete pouring process are difficult to discharge, additional vibration operations are required after pouring. If the over-pouring volume is found to be insufficient after vibration, a second replenishment is required. If the over-pouring volume is too large, material waste will result. This not only increases the complexity of the construction process and reduces the efficiency of concrete pouring, but also makes it difficult to ensure the accuracy of over-pouring control.

[0005] Therefore, we propose a monitoring device for controlling the overfilling amount of cast-in-place pile concrete to solve the above problem. Summary of the Invention

[0006] The object of the present invention is to provide a monitoring device for controlling the overfilling amount of cast-in-place pile concrete in view of the above problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions: a monitoring device for controlling the overfilling of cast-in-place pile concrete, comprising two fixing clamps, the outer walls of the two fixing clamps being fixedly connected to a fixing box, the top end of the fixing box being fixedly connected to an arc-shaped wire pipe, the top end of the arc-shaped wire pipe being fixedly connected to a protective box, the bottom end of the protective box being provided with a through hole, and the through hole wall of the protective box being fixedly connected to a laser ranging sensor;

[0008] The upper surface of one of the fixing clamps is fixedly connected to two positioning claws, and the side wall of one of the positioning claws is fixedly connected to the outer wall of the protective box;

[0009] The inner wall of the fixed box is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a PLC controller, and the top of the fixed box is fixedly embedded with a protective mechanism and an alarm;

[0010] A square hole is opened on the side wall of the fixed box, and a bubble elimination mechanism is fixedly connected to the hole wall of the square hole;

[0011] A template deviation monitoring mechanism is fixedly connected to the lower surface of the fixed box.

[0012] In the above-mentioned monitoring device for controlling the over-filling amount of bored pile concrete, the protective mechanism includes a hollow box fixedly embedded in the top of the fixed box, the bottom end of the hollow box is fixedly connected to a micro-fan, the inner wall of the hollow box is fixedly connected to a metal mesh plate, the outer wall of the hollow box is fixedly connected to an electric heating tube and a semiconductor refrigeration plate, the tube wall of the electric heating tube is in contact with the lower surface of the metal mesh plate, the cooling side of the semiconductor refrigeration plate is in contact with the upper surface of the metal mesh plate, the upper surface of the hollow box is fixedly connected to a delivery pipe, the air outlet end of the delivery pipe is fixedly connected to the upper surface of the protective box, a plurality of air outlet holes are provided on the four side walls of the protective box, and the tube wall of the delivery pipe is fixedly connected to a temperature sensor.

[0013] In the above-mentioned monitoring device for controlling the overfilling amount of bored pile concrete, the heat dissipation side of the semiconductor refrigeration plate is fixedly connected to a heat sink, and an L-shaped tube is fixedly embedded in the top of the hollow box, and the air outlet end of the L-shaped tube is located on the side of the heat sink.

[0014] In the above-mentioned monitoring device for controlling the over-filling amount of bored pile concrete, the bubble elimination mechanism includes a fixed groove plate fixedly embedded in the side wall of the fixed box, the inner wall of the fixed groove plate is fixedly connected with a buffer rubber layer, the inner wall of the bottom end of the buffer rubber layer is fixedly connected with a connecting frame, the top of the connecting frame is fixedly connected with a driving motor, the output end of the driving motor passes through the top of the connecting frame and is fixedly connected with a cam, the side wall of the connecting frame is provided with a through hole, and the through hole wall of the connecting frame is movably connected with a wear-resistant sleeve, the inner wall of the wear-resistant sleeve is slidably connected with a hammer rod, the inner end of the hammer rod is in sliding contact with the side wall of the cam, the rod wall of the hammer rod is fixedly sleeved with a convex ring, the rod wall of the hammer rod is sleeved with a reset spring, and the two ends of the reset spring are respectively fixedly connected to the outer wall of the convex ring and the inner wall of the connecting frame.

[0015] In the above-mentioned monitoring device for controlling the overfilling amount of cast-in-place pile concrete, a plurality of buffer through holes are provided inside the buffer rubber layer.

[0016] In the above-mentioned monitoring device for controlling the over-filling amount of bored pile concrete, the formwork deviation monitoring mechanism includes a rubber diaphragm fixedly connected to the lower surface of the fixed box, the upper surface of the rubber diaphragm is provided with a through hole, and the through hole wall of the rubber diaphragm is fixedly connected to a positioning rod, the rod wall of the positioning rod is fixedly sleeved with a retaining ring, the top end of the positioning rod is fixedly connected to an infrared transmitter, and the lower surface of the support plate is fixedly embedded with an infrared receiver symmetrically matched with the infrared transmitter.

[0017] In the above-mentioned monitoring device for controlling the over-filling amount of bored pile concrete, a rectangular countersunk hole is opened on the outer wall of the fixed box, and the hole wall of the rectangular countersunk hole is fixedly connected to a cover plate by bolts, an air inlet hole is opened on the top of the cover plate, and the hole wall of the air inlet hole is fixedly connected to a filter plate.

[0018] In the above-mentioned monitoring device for controlling overfilling of cast-in-place pile concrete, a battery is fixedly connected to the inner wall of the bottom end of the fixing box, and a circular hole for cooperating with a positioning rod is opened on the inner wall of the fixing box.

[0019] Compared with the existing technology, the advantages of a monitoring device for controlling the overfilling of cast-in-place pile concrete are:

[0020] 1. Through the laser distance measuring sensor, PLC controller and alarm, when the overfilling of concrete needs to be monitored during the pouring of bored pile concrete, the position of the fixing clamp is first accurately located by the positioning claw, and the overfilling of concrete is accurately calculated according to the design specifications of the bored pile. At the same time, the final height H1 of the top surface of the concrete in the pouring template is calculated. Then the PLC controller presets the reminder threshold S1 of the laser distance measuring sensor to monitor the overfilling of concrete according to the data of H. After that, the laser distance measuring sensor monitors the overfilling of concrete in the pouring template. When the data value measured by the laser distance measuring sensor reaches When the reminder threshold S1 preset by the PLC controller is reached, the PLC controller promptly controls the alarm to emit a uniform alarm sound, thus completing the precise control of the over-filling of the bored pile concrete. Moreover, the monitoring of the over-filling of concrete does not require the monitoring component to be inserted into the concrete, and the volume of the monitoring component itself will not interfere with the precise monitoring of the over-filling. At the same time, there is no need to clean the monitoring component after the over-filling of concrete is poured, thus saving time and effort. This mechanism enables the bored pile concrete over-filling monitoring device to have the functions of convenient installation and high-precision monitoring of the over-filling of concrete, which can improve the accuracy of the monitoring of the over-filling of concrete, as well as the convenience and reliability of the use of the device.

[0021] 2. Through the bubble elimination mechanism, when the laser ranging sensor monitors the over-filling of the bored pile concrete, the PLC controller controls the start-up of the drive motor of the drive mechanism, and the drive motor controls the reciprocating motion of the hammer rod. The vibration generated when the hammer rod extends outward to strike the pouring formwork can eliminate bubbles in the concrete, and as the over-filling of the concrete increases, the knocking frequency of the hammer rod controlled by the drive motor increases accordingly, thereby ensuring the effect of the bubble elimination mechanism in eliminating concrete bubbles, avoiding the presence of too many bubbles in the over-filled concrete and affecting the accuracy of the monitoring of the over-filling of the concrete. This mechanism enables the device to have the function of timely eliminating bubbles in the concrete, which can improve the accuracy of the monitoring of the over-filling of the bored pile concrete and improve the reliability and effect of the device.

[0022] 3. Through the protection mechanism, when the bored pile concrete overfilling monitoring device is working, the PLC controller also controls the micro-blower of the protection mechanism to operate. The micro-blower sucks outside air into the protection box. The air is also detected by the temperature sensor in the delivery pipe. If the air temperature detected by the temperature sensor does not reach the standard temperature range preset by the PLC controller, the PLC controller controls the semiconductor refrigeration plate or electric heating tube to adjust the operation, so that the air temperature of the air conveying the laser ranging sensor meets the standard temperature range preset by the PLC controller, ensuring that the optical components in the laser ranging sensor are not affected by high or low temperatures and cause displacement, thereby ensuring the accuracy of the laser ranging sensor in monitoring the overfilling of bored pile concrete. In addition, when the air in the protection box is ejected through the air outlet, it will form an outward-emitting air curtain at the top of the casting template. The outward diffusion process of the air curtain will form a low-pressure area inside the top of the casting template. This low-pressure area can accelerate the discharge of bubbles in the concrete in the casting template. This mechanism enables the device to have the function of protecting the laser ranging sensor and assists in the rapid discharge of bubbles in the concrete, thereby improving the accuracy of the device in monitoring the overfilling of concrete, as well as improving the reliability and effectiveness of the device.

[0023] 4. Through the template deviation monitoring mechanism, when the bored pile concrete over-pouring monitoring device is working, if the bored pile template is offset due to the pressure imbalance caused by the increase in concrete pouring, the fixing box integrated with the bored pile template through the fixing clamp is also offset, or when the bored pile foundation surface is deformed due to external force, causing the bored pile template to deviate, the vertical state of the positioning rod is changed. These situations will cause the infrared receiver to fail to receive the infrared light emitted by the infrared transmitter, and then the infrared receiver sends an electrical signal to the PLC controller. The PLC controller controls the alarm to sound a rapid alarm according to the received electrical signal. The staff immediately suspends the pouring of concrete according to the rapid alarm and corrects the abnormal situation at the bored pile template. In addition, the mechanism can also promptly detect the situation where the bored pile template is offset due to excessive striking of the hammer rod, ensuring that the bored pile can successfully carry out concrete over-pouring construction. This mechanism enables the device to have the function of monitoring the posture of the bored pile template, which can improve the success rate of bored pile concrete over-pouring construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a monitoring device for controlling overfilling of cast-in-place pile concrete provided by the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure;

[0026] Figure 3 This is a partial three-dimensional structural diagram of a monitoring device for controlling overfilling of cast-in-place pile concrete provided by the present invention;

[0027] Figure 4 This is a schematic structural diagram of a protective mechanism in a monitoring device for controlling overfilling of cast-in-place pile concrete provided by the present invention;

[0028] Figure 5 This is a schematic structural diagram of a laser ranging sensor in a monitoring device for controlling overfilling of cast-in-place pile concrete provided by the present invention;

[0029] Figure 6 This is a structural schematic diagram of a bubble elimination mechanism in a monitoring device for controlling overfilling of cast-in-place pile concrete provided by the present invention;

[0030] Figure 7 The present invention provides a structural diagram of a template deviation monitoring mechanism in a monitoring device for controlling overfilling of cast-in-place pile concrete.

[0031] In the figure: 1 fixing clamp, 2 fixing box, 3 arc-shaped wire tube, 4 protection box, 5 laser ranging sensor, 6 protection mechanism, 61 hollow box, 62 micro fan, 63 metal mesh plate, 64 electric heating tube, 65 semiconductor refrigeration plate, 66 conveying pipe, 67 air outlet, 68 temperature sensor, 7 bubble elimination mechanism, 71 fixed groove plate, 72 buffer rubber layer, 73 connecting frame, 74 drive motor, 75 cam, 76 wear-resistant sleeve, 77 hammer rod, 78 convex ring, 79 return spring, 8 template offset monitoring mechanism, 81 rubber diaphragm, 82 positioning rod, 83 retaining ring, 84 infrared transmitter, 85 infrared receiver, 9 heat sink, 10 positioning claw, 11 support plate, 12 PLC controller, 13 alarm, 14 L-shaped tube, 15 buffer through hole, 16 cover plate, 17 filter plate, 18 battery, 19 through hole. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 7 As shown, a monitoring device for controlling the over-filling amount of bored pile concrete comprises two fixing clamps 1, the outer walls of the two fixing clamps 1 are fixedly connected to a fixing box 2, the top of the fixing box 2 is fixedly connected to an arc-shaped wire tube 3, the top of the arc-shaped wire tube 3 is fixedly connected to a protective box 4, the bottom end of the protective box 4 is provided with a through hole, and the through hole wall of the protective box 4 is fixedly connected to a laser ranging sensor 5, the upper surface of one of the fixing clamps 1 is fixedly connected to two positioning claws 10, the side wall of one of the positioning claws 10 is fixedly connected to the outer wall of the protective box 4, the inner wall of the fixing box 2 is fixedly connected to a support plate 11, the upper surface of the support plate 11 is fixedly connected to a PLC controller 12, the top of the fixing box 2 is fixedly embedded with a protective mechanism 6 and an alarm 13, the alarm 13 has two alarm modes, namely uniform alarm sound and rapid alarm sound, and the alarm 13 can be used for double alarm.

[0034] The protective mechanism 6 includes a hollow box 61 fixedly embedded in the top of the fixed box 2, the bottom end of the hollow box 61 is fixedly connected to a micro-fan 62, the inner wall of the hollow box 61 is fixedly connected to a metal mesh plate 63, the outer wall of the hollow box 61 is fixedly connected to an electric heating tube 64 and a semiconductor refrigeration plate 65, the tube wall of the electric heating tube 64 is in contact with the lower surface of the metal mesh plate 63, the cooling side of the semiconductor refrigeration plate 65 is in contact with the upper surface of the metal mesh plate 63, the upper surface of the hollow box 61 is fixedly connected to a delivery pipe 66, the air outlet end of the delivery pipe 66 is fixedly connected to the upper surface of the protective box 4, a plurality of air outlet holes 67 are provided on the four side walls of the protective box 4, and the tube wall of the delivery pipe 66 is fixedly connected to a temperature sensor 68. This mechanism enables the bored pile concrete over-filling monitoring device to have the function of protecting the laser ranging sensor 5, and assists in the rapid discharge of bubbles in the concrete, thereby improving the accuracy of the device in monitoring the over-filling of concrete.

[0035] The heat dissipation side of the semiconductor refrigeration plate 65 is fixedly connected to the heat sink 9, and an L-shaped tube 14 is fixedly embedded in the top of the hollow box 61. The air outlet end of the L-shaped tube 14 is located at the side of the heat sink 9. This mechanism can ensure that the heat dissipation side of the semiconductor refrigeration plate 65 can dissipate heat efficiently, thereby improving the cooling effect of the semiconductor refrigeration plate 65. A rectangular countersunk hole is provided on the outer wall of the fixed box 2, and the hole wall of the rectangular countersunk hole is fixedly connected to a cover plate 16 by bolts. An air inlet is provided on the top of the cover plate 16, and the hole wall of the air inlet is fixedly connected to a filter plate 17. The filter plate 17 can filter the air sucked in by the micro fan 62 to prevent impurities in the air from clogging the protective mechanism 6, thereby improving the reliability of the protective mechanism 6.

[0036] A square hole is provided on the side wall of the fixed box 2, and a bubble elimination mechanism 7 is fixedly connected to the hole wall of the square hole. The bubble elimination mechanism 7 includes a fixed groove plate 71 fixedly embedded in the side wall of the fixed box 2. The inner wall of the fixed groove plate 71 is fixedly connected to a buffer rubber layer 72. The inner wall of the bottom end of the buffer rubber layer 72 is fixedly connected to a connecting frame 73. The top of the connecting frame 73 is fixedly connected to a drive motor 74. The output end of the drive motor 74 passes through the top of the connecting frame 73 and is fixedly connected to a cam 75. The side wall of the connecting frame 73 is provided with a through hole. The through-hole wall of the connecting frame 73 is movably connected with a wear-resistant sleeve 76, and the inner wall of the wear-resistant sleeve 76 is slidably connected with a hammer rod 77. The inner end of the hammer rod 77 is in sliding contact with the side wall of the cam 75, and the rod wall of the hammer rod 77 is fixedly sleeved with a convex ring 78, and the rod wall of the hammer rod 77 is sleeved with a return spring 79. The two ends of the return spring 79 are respectively fixedly connected to the outer wall of the convex ring 78 and the inner wall of the connecting frame 73. This mechanism enables the device to have the function of timely eliminating bubbles in concrete, which can improve the accuracy of monitoring the over-filling of cast-in-place pile concrete.

[0037] The lower surface of the fixed box 2 is fixedly connected to a formwork offset monitoring mechanism 8, which includes a rubber diaphragm 81 fixedly connected to the lower surface of the fixed box 2. A through hole is provided on the upper surface of the rubber diaphragm 81, and a positioning rod 82 is fixedly connected to the through hole wall of the rubber diaphragm 81. A retaining ring 83 is fixedly sleeved on the rod wall of the positioning rod 82, and an infrared transmitter 84 is fixedly connected to the top of the positioning rod 82. An infrared receiver 85 symmetrically matched with the infrared transmitter 84 is fixedly embedded on the lower surface of the support plate 11. This mechanism enables the device to have the function of monitoring the posture of the cast-in-place formwork, which can improve the success rate of the over-pouring construction of the cast-in-place pile concrete.

[0038] A number of buffer through holes 15 are provided inside the buffer rubber layer 72. The buffer through holes 15 can improve the buffering effect of the buffer rubber layer 72 and prevent the vibration of the driving motor 74 from interfering with the normal operation of the template offset monitoring mechanism 8. A battery 18 is fixedly connected to the inner wall of the bottom end of the fixed box 2. A circular hole 19 is provided on the inner wall of the fixed box 2 for cooperating with the positioning rod 82. The battery 18 can provide power support to the device, so that no additional wiring is required when the device is used, saving time and effort.

[0039] The laser ranging sensor 5, infrared receiver 85 and temperature sensor 68 are all electrically connected to the input end of the PLC controller 12 through wires, and the micro fan 62, semiconductor refrigeration plate 65, electric heating tube 64, drive motor 74, infrared transmitter 84 and alarm 13 are all electrically connected to the output end of the PLC controller 12 through wires, and the battery 18 can supply power to the above-mentioned powered devices. The above-mentioned powered devices and electrical connections are all existing technologies and will not be repeated here.

[0040] The operating principle of the present invention is described as follows: When monitoring the amount of overfilled concrete during the concrete pouring process of a bored pile, two fixing clamps 1 are first positioned on the outside of the bored pile formwork using bolts. At the same time, the positioning claws 10 are used to accurately position the fixing clamps 1. The overfilled concrete amount is accurately calculated according to the bored pile design specifications. The final height H1 of the top surface of the concrete within the formwork at which this overfilled concrete amount is located is also calculated. The PLC controller 12 then presets a warning threshold S1 for monitoring overfilled concrete by the laser ranging sensor 5 based on the data at H1 (i.e., the distance value obtained by subtracting the height H1 of the top surface of the concrete from the height of the formwork). Simultaneously, the positioning rod 82 is vertically inserted into the foundation next to the bored pile, and the infrared transmitter 84 and the infrared receiver 85 are vertically symmetrically distributed.

[0041] During the concrete pouring process of the bored pile, especially when over-pouring of concrete is carried out, the laser ranging sensor 5 emits a ranging laser to the top surface of the concrete in the pouring template. The ranging laser is reflected after contacting the top surface of the concrete, and the reflected ranging laser is received by the receiving part of the laser ranging sensor 5. By measuring the time difference between the laser emission and the reception, the distance value between the laser ranging sensor 5 and the top surface of the concrete is calculated in combination with the speed of light. When the data value measured by the laser ranging sensor 5 reaches the reminder threshold S1 preset by the PLC controller 12, the PLC controller 12 promptly controls the alarm 13 to emit a uniform alarm sound, which reminds the staff to stop the concrete supply, thus completing the precise control of the over-pouring of the bored pile concrete. In addition, the monitoring of the over-pouring of concrete does not require the monitoring component to be inserted into the concrete, and the volume of the monitoring component itself will not interfere with the precise monitoring of the over-pouring amount. At the same time, there is no need to clean the monitoring component after the over-pouring of concrete, which saves time and effort. This mechanism enables the bored pile concrete over-pouring monitoring device to have the functions of convenient installation and high-precision monitoring of the over-pouring of concrete, which can improve the accuracy of the monitoring of the over-pouring of concrete, as well as the convenience and reliability of the device.

[0042] When the laser ranging sensor 5 monitors the overfilling of the bored pile concrete, the PLC controller 12 controls the drive motor 74 to start. The drive motor 74 drives the hammer rod 77 to reciprocate and extend in the wear-resistant sleeve 76 through the cam 75 and the return spring 79. Specifically, when the drive motor 74 drives the protrusion of the cam 75 to approach the hammer rod 77, the protrusion of the cam 75 will squeeze the hammer rod 77 to extend in and out of the wear-resistant sleeve 76. When the hammer rod 77 extends outward, it drives the protruding ring 78 to squeeze the return spring 79. The return spring 79 is compressed and stores energy. After the protrusion of the cam 75 rotates to the side away from the hammer rod 77, the hammer rod 77 retracts in the wear-resistant sleeve 76 under the action of the compressed rebound force of the return spring 79. During the extension of the hammer rod 77, the hammer of the hammer rod 77 strikes the casting template, causing the casting template to vibrate. After the vibration generated by the casting template is transmitted to the overfilled concrete inside the casting template, the bubbles in the concrete are shattered, thereby achieving the purpose of eliminating bubbles and improving the accurate monitoring of the overfilling of concrete. Moreover, as the distance between the top surface of the over-poured concrete and the laser distance sensor 5 becomes smaller (the amount of concrete poured gradually increases), that is, the data value measured by the laser distance sensor 5 becomes closer to the reminder threshold value S1 preset by the PLC controller 12, the PLC controller 12 controls the driving end of the drive motor 74 to gradually increase the rotation speed, and the driving motor 74 drives the cam 75 to rotate at a gradually increased speed, thereby increasing the frequency of the hammer rod 77 striking the pouring formwork, so that the hammer rod 77 can use the knocking vibration to eliminate the gradually increasing concrete bubbles in the pouring formwork, thereby ensuring the effect of eliminating the concrete bubbles, avoiding the presence of too many bubbles in the over-poured concrete that affects the accuracy of the concrete over-pour amount monitoring, that is, avoiding the situation where the concrete over-pour is insufficient and requires secondary filling, and at the same time avoiding the situation where the concrete is over-poured and wastes materials. This mechanism enables the device to have the function of timely eliminating bubbles in the concrete, which can improve the accuracy of the monitoring of the over-pour amount of the cast-in-place pile concrete, and improve the reliability and effect of the device.

[0043] When the monitoring device for overfilling of bored pile concrete is working, the PLC controller 12 also controls the micro fan 62 to work. The micro fan 62 draws in outside air through the filter screen 17, and the air then enters the hollow box 61. Finally, the air is injected into the protective box 4 through the delivery pipe 66. The air is also detected by the temperature sensor 68 in the delivery pipe 66. If the temperature sensor 68 detects that the temperature of the air does not reach the standard temperature range (20℃-25℃) preset by the PLC controller 12, the PLC controller 12 controls the semiconductor refrigeration plate 65 or the electric heating tube 64 to work, that is, the air temperature in the delivery pipe 66 is too high, the PLC controller 12 controls the semiconductor refrigeration plate 65 to work, and the semiconductor refrigeration plate 65 cools the metal mesh plate 63. The high-temperature air delivered by the micro fan 62 is cooled when it passes through the low-temperature metal mesh plate 63. If the air temperature in the delivery pipe 66 is too low, the PLC controller 12 controls the electric heating tube 64 to work and generate heat. , raising the temperature of the metal mesh plate 63, so that the temperature of the low-temperature air delivered by the micro fan 62 is raised when passing through the high-temperature metal mesh plate 63, and finally the temperature of the air delivered to the laser ranging sensor 5 meets the standard temperature range preset by the PLC controller 12, ensuring that the internal optical components of the laser ranging sensor 5 are not affected by high or low temperatures and deviate, thereby ensuring the accuracy of the laser ranging sensor 5 in monitoring the over-filling of the cast-in-place pile concrete, and when the air in the protective box 4 is ejected through the air outlet 67, an outward-emitting air curtain will be formed on the top of the casting template. The outward diffusion process of the air flow of the air curtain will form a low-pressure area inside the top of the casting template. This low-pressure area can accelerate the discharge of bubbles in the concrete in the casting template. This mechanism enables the device to have the function of protecting the laser ranging sensor 5 and assists in the rapid discharge of bubbles in the concrete, thereby improving the accuracy of the device in monitoring the over-filling of the concrete, as well as improving the reliability and effect of the device.

[0044] When the monitoring device for overfilling of bored pile concrete is working, the infrared transmitter 84 at the top of the positioning rod 82 transmits an infrared beam to the infrared receiver 85. After receiving the infrared beam, the infrared receiver 85 does not control the alarm 13 through the PLC controller 12 to sound an alarm. If the pouring template of the bored pile is offset due to the pressure imbalance caused by the increase of poured concrete, the fixing box 2 integrated with the pouring template through the fixing clamp 1 will also be offset, or the surface of the bored pile foundation is deformed due to external force, causing the pouring template to deviate, the vertical state of the positioning rod 82 will change. These situations will cause the infrared receiver 85 to fail to receive the infrared beam emitted by the infrared transmitter 84. Infrared light, then the infrared receiver 85 sends an electrical signal to the PLC controller 12, and the PLC controller 12 controls the alarm 13 to sound a rapid alarm according to the received electrical signal. The staff understands that there is an abnormality in the pouring template of the bored pile based on the rapid alarm sound of the alarm 13, and immediately suspends the pouring of concrete, and corrects the abnormality at the pouring template. Moreover, the mechanism can also promptly discover the displacement of the pouring template due to excessive striking of the hammer rod 77, ensuring that the bored pile can successfully carry out concrete over-pouring construction. The mechanism enables the device to have the function of monitoring the posture of the pouring template, which can improve the success rate of concrete over-pouring construction of the bored pile.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A monitoring device for controlling the overfilling of cast-in-place pile concrete, comprising two fixing clamps (1), characterized in that: The outer walls of the two fixing clamps (1) are fixedly connected to a fixing box (2), the top end of the fixing box (2) is fixedly connected to an arc-shaped wire tube (3), the top end of the arc-shaped wire tube (3) is fixedly connected to a protective box (4), the bottom end of the protective box (4) is provided with a through hole, and the through hole wall of the protective box (4) is fixedly connected to a laser distance sensor (5); The upper surface of one of the fixing clamps (1) is fixedly connected to two positioning claws (10), and the side wall of one of the positioning claws (10) is fixedly connected to the outer wall of the protective box (4); The inner wall of the fixed box (2) is fixedly connected to a support plate (11), the upper surface of the support plate (11) is fixedly connected to a PLC controller (12), and the top of the fixed box (2) is fixedly embedded with a protective mechanism (6) and an alarm (13); A square hole is provided on the side wall of the fixed box (2), and a bubble elimination mechanism (7) is fixedly connected to the hole wall of the square hole; A template deviation monitoring mechanism (8) is fixedly connected to the lower surface of the fixed box (2); The protection mechanism (6) includes a hollow box (61) fixedly embedded in the top of the fixed box (2), the bottom end of the hollow box (61) is fixedly connected to a micro fan (62), the inner wall of the hollow box (61) is fixedly connected to a metal mesh plate (63), the outer wall of the hollow box (61) is fixedly connected to an electric heating tube (64) and a semiconductor refrigeration plate (65), the tube wall of the electric heating tube (64) contacts the lower surface of the metal mesh plate (63), the cooling side of the semiconductor refrigeration plate (65) contacts the upper surface of the metal mesh plate (63), the upper surface of the hollow box (61) is fixedly connected to a delivery tube (66), the air outlet end of the delivery tube (66) is fixedly connected to the upper surface of the protection box (4), the four side walls of the protection box (4) are provided with a plurality of air outlet holes (67), and the tube wall of the delivery tube (66) is fixedly connected to a temperature sensor (68); The bubble elimination mechanism (7) includes a fixed groove plate (71) fixedly embedded in the side wall of the fixed box (2), the inner wall of the fixed groove plate (71) is fixedly connected to a buffer rubber layer (72), the inner wall of the bottom end of the buffer rubber layer (72) is fixedly connected to a connecting frame (73), the top end of the connecting frame (73) is fixedly connected to a driving motor (74), the output end of the driving motor (74) passes through the top end of the connecting frame (73) and is fixedly connected to a cam (75), and the side wall of the connecting frame (73) is fixedly connected to the inner wall of the bottom end of the buffer rubber layer (72). A through hole is opened, and the through hole wall of the connecting frame (73) is movably connected to a wear-resistant sleeve (76), the inner wall of the wear-resistant sleeve (76) is slidably connected to a hammer rod (77), the inner end of the hammer rod (77) is in sliding contact with the side wall of the cam (75), the rod wall of the hammer rod (77) is fixedly sleeved with a convex ring (78), the rod wall of the hammer rod (77) is sleeved with a return spring (79), and the two ends of the return spring (79) are fixedly connected to the outer wall of the convex ring (78) and the inner wall of the connecting frame (73), respectively.

2. A monitoring device for controlling overfilling of cast-in-place pile concrete according to claim 1, characterized in that: The heat dissipation side of the semiconductor refrigeration plate (65) is fixedly connected to a heat sink (9), and an L-shaped tube (14) is fixedly embedded in the top end of the hollow box (61), and the air outlet end of the L-shaped tube (14) is located at the side of the heat sink (9).

3. A monitoring device for controlling overfilling of cast-in-place pile concrete according to claim 1, characterized in that: A plurality of buffer through holes (15) are provided inside the buffer rubber layer (72).

4. A monitoring device for controlling overfilling of cast-in-place pile concrete according to claim 1, characterized in that: The template offset monitoring mechanism (8) comprises a rubber diaphragm (81) fixedly connected to the lower surface of the fixed box (2), a through hole is provided on the upper surface of the rubber diaphragm (81), and a positioning rod (82) is fixedly connected to the wall of the through hole of the rubber diaphragm (81), a retaining ring (83) is fixedly sleeved on the rod wall of the positioning rod (82), an infrared transmitter (84) is fixedly connected to the top end of the positioning rod (82), and an infrared receiver (85) symmetrically matched with the infrared transmitter (84) is fixedly embedded on the lower surface of the support plate (11).

5. The monitoring device for controlling overfilling of cast-in-place pile concrete according to claim 1, characterized in that: The outer wall of the fixed box (2) is provided with a rectangular countersunk hole, and the hole wall of the rectangular countersunk hole is fixedly connected to a cover plate (16) by means of bolts; the top of the cover plate (16) is provided with an air inlet hole, and the hole wall of the air inlet hole is fixedly connected to a filter screen plate (17).

6. A monitoring device for controlling overfilling of cast-in-place pile concrete according to claim 4, characterized in that: A battery (18) is fixedly connected to the inner wall of the bottom end of the fixed box (2), and a through-hole (19) for cooperating with a positioning rod (82) is provided on the inner wall of the fixed box (2).

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