Grouting quality detection device for bridge prestressed pipeline and tunnel grouting duct

Abstract

The invention relates to the technical field of engineering detection, in particular to a grouting quality detection device for a bridge prestressed pipeline and a tunnel grouting hole channel, which comprises a grouting detection connecting pipe and an electrical shell, a supporting mechanism is arranged on the grouting detection connecting pipe, and the electrical shell is electrically connected with a detection box through a splicing rod with scales. A GPS and inertial navigator, a heating sheet and a temperature sensor are fixedly arranged in the detection box, the box is connected with probes in a magnetic attraction mode, and the probes comprise a miniature probe and a wide-angle probe. The splicing rods with the scales can be spliced, the probe insertion depth can be conveniently recorded, GPS and inertial navigator positioning and cloud data transmission are integrated, the detection precision and the engineering management efficiency are improved, the tail ends are connected in a magnetic attraction mode, the equipment investment cost is reduced, the detection efficiency is improved, data are managed in a unified mode, the ultrasonic and electromagnetic induction dual-detection principle is fused, and the detection precision is improved. And three defects of hollowing, cracking and insufficient strength are identified at the same time, and detection requirements of two scenes are covered.

Description

TECHNICAL FIELD

[0001] The application relates to a grouting quality detection device, in particular to a grouting quality detection device for bridge prestressed ducts and tunnel grouting holes, and belongs to the technical field of engineering detection. BACKGROUND

[0002] The current grouting quality detection equipment for bridge prestressed ducts and tunnel grouting holes has the problems of strong speciality and poor universality: 1. Bridge prestressed duct detection: the existing equipment is mostly small ultrasonic detectors, which are only suitable for straight / parabolic embedded ducts with an inner diameter of 20-80 mm, and need to be closely attached to the surface of the beam body during detection, and cannot adapt to the complex space of the tunnel; 2. Tunnel grouting hole detection: large geological radars are mostly used, which can cover annular / grid-shaped holes with a hole diameter of 42-110 mm, but are large in size and complex in operation, and are difficult to use in the narrow beam area of the bridge; 3. The detection principles of the two are isolated, the bridge focuses on "hollow identification", and the tunnel focuses on "crack filling verification", so the equipment needs to be purchased separately, increasing the engineering cost, and the detection data has no unified analysis standard, reducing the efficiency.

[0003] Therefore, it is urgent to design an integrated device that can flexibly adapt to two kinds of holes and meet different detection needs, to solve the technical problems of "equipment redundancy and low detection efficiency".

[0004] Therefore, it is urgent to improve the grouting quality detection device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a grouting quality detection device for bridge prestressed ducts and tunnel grouting holes, which can be connected by a scale connecting rod, facilitating the recording of the probe insertion depth, integrating GPS and inertial navigation positioning, cloud data transmission, improving detection accuracy and engineering management efficiency, reducing equipment purchase and operation cost, reducing cost by more than 40% compared with purchasing two separate devices, using magnetic attraction at the end to improve the convenience of use, reduce equipment investment cost, improve detection efficiency, and data is uniformly managed, facilitating quality traceability, promoting the integrated development of bridge and tunnel grouting detection technology, providing design ideas for similar cross-scene detection equipment, combining ultrasonic and electromagnetic induction double detection principles, simultaneously identifying three types of defects of hollow, crack and insufficient strength, covering the detection needs of two scenes.

[0006] In order to achieve the above purpose, the main technical scheme adopted by the present application includes: Bridge prestressed pipe and tunnel grouting hole pressure grouting quality detection device, including pressure grouting detection connecting pipe and fixedly arranged in the electrical shell of the pressure grouting detection connecting pipe, the pressure grouting detection connecting pipe is provided with support mechanism, the electrical shell is electrically connected with detection box through a plurality of scale splice rods, the inside of the detection box is fixedly provided with GPS and inertial navigator, heating sheet and temperature sensor, the detection box is connected with probe by magnetic attraction, the probe includes micro probe and wide-angle probe, the inside of the micro probe is provided with ultrasonic detector, the inside of the wide-angle probe is provided with electromagnetic and ultrasonic dual-mode detector; The inside of the electrical shell is fixedly provided with an electrically connected battery and a double signal processing chip, the GPS and inertial navigator and the heating sheet are both in communication connection with the double signal processing chip; One end of the scale splice rod is provided with a splice rod male head, the other end is provided with a splice rod female head, the scale splice rod is fixedly provided with an electrical connection mechanism, the electrical connection mechanism includes a third positive electrode guide rod and a threaded coil wire, the third positive electrode guide rod is fixedly arranged in the inside of the scale splice rod, the threaded coil wire is electrically connected with a male negative threaded coil or a female negative threaded coil at both ends, the male negative threaded coil is arranged on the splice rod male head and is electrically connected with the electrical shell or the splice rod female head, the female negative threaded coil is arranged in the inside of the splice rod female head and is electrically connected with the splice rod male head or the detection box.

[0007] Preferably, one end of the electrical shell is provided with a shell electrical connection head, the splice rod male head is connected with the shell electrical connection head through thread rotation, the inside of the shell electrical connection head is provided with a first positive electrode guide rod and a first negative threaded coil, the first positive electrode guide rod and the first negative threaded coil are both in communication connection with the double signal processing chip; When the scale splice rod is connected with the electrical shell, the third positive electrode guide rod abuts against the first positive electrode guide rod, and the male negative threaded coil is electrically connected with the first negative threaded coil.

[0008] Preferably, one end of the detection box is connected with a detection box connector, the middle part of the detection box connector is provided with a second positive electrode guide rod, the outer side of the detection box connector is fixedly provided with a detection box negative threaded coil, the positive electrode of the GPS and inertial navigator, the heating sheet and the temperature sensor is electrically connected with the second positive electrode guide rod, and the negative electrode of the GPS and inertial navigator, the heating sheet and the temperature sensor is electrically connected with the detection box negative threaded coil.

[0009] Preferably, the detection box is provided with a probe connecting groove away from one end of the scale splicing rod, and a first positive metal ring and a first negative metal ring are fixedly arranged in the probe connecting groove, the first positive metal ring is electrically connected with the second positive lead rod, and the first negative metal ring is electrically connected with the negative threaded ring of the detection box. One end of the probe is fixedly provided with a second positive metal ring and a second negative metal ring, and when the probe is clamped with the probe connecting groove, the second positive metal ring is electrically connected with the first positive metal ring, and the second negative metal ring is electrically connected with the first negative metal ring.

[0010] Preferably, a first rubidium magnetic sheet is fixedly arranged in the probe connecting groove, and a second rubidium magnetic sheet is fixedly arranged at one end of the probe, and when the probe is clamped with the detection box, the magnetic poles of the first rubidium magnetic sheet and the second rubidium magnetic sheet are opposite.

[0011] Preferably, the support mechanism comprises a pushing nut and a steering support arm, an extension support arm is slidably arranged on the steering support arm, and a threaded pushing ring is fixedly arranged on the outer side of the grouting detection connecting pipe. A fixed support ring is fixedly arranged on the grouting detection connecting pipe, a U-shaped turning groove is fixedly arranged on the fixed support ring, one end of the steering support arm is rotatably arranged on the U-shaped turning groove, and the pushing nut is rotatably connected with the steering support arm through a support connecting arm.

[0012] Preferably, a sliding ring groove is formed in the pushing nut, a sliding ring is rotatably arranged in the sliding ring groove, a sliding ring connector is fixedly arranged on the sliding ring, the sliding ring connector is rotatably connected with one end of the support connecting arm, and the other end of the support connecting arm is rotatably connected with the steering support arm.

[0013] Preferably, an extension arm guide block is connected to one end of the extension support arm, an extension arm guide groove is formed in the steering support arm, the extension arm guide block is slidably arranged in the extension arm guide groove, and the extension support arm is fixed by fastening bolts; A magnet connecting block is rotatably connected to one end of the extension support arm away from the grouting detection connecting pipe, and a rubidium magnet base is connected to the magnet connecting block through a rubidium magnet adjusting bolt.

[0014] Preferably, the electrical shell is fixedly arranged in the grouting detection connecting pipe through a shell fixing plate, a flow rate sensor is connected to one end of the electrical shell away from the scale splicing rod, and the flow rate sensor is electrically connected with the double signal processing chip. The double signal processing chip is electrically connected with a wireless transmitting module, the wireless transmitting module is connected with a cloud platform in a wireless mode, the double signal processing chip is connected with a display through wires, and the display fixing ring is fixedly arranged on the grouting detection connecting pipe.

[0015] Preferably, the detection box is fixedly provided with a pressure sensor on the outer side, the positive electrode of the pressure sensor is electrically connected with the second positive electrode lead, and the negative electrode of the pressure sensor is electrically connected with the negative electrode threaded ring of the detection box. The grouting detection connecting pipe is connected with a grouting pump connecting head at one end and a grouting connecting head at the other end, the second positive electrode lead is electrically connected with the first positive electrode lead when the detection box connecting head is connected with the electrically connecting head of the shell, and the negative electrode threaded ring of the detection box is electrically connected with the first negative electrode threaded ring.

[0016] The application has at least the following beneficial effects: 1. The electrical shell is made of waterproof and wear-resistant ABS material, which is suitable for the humid environment of a tunnel, has a size of 280*180*100mm, is convenient for handheld operation in a narrow space of a bridge, and has a magnetic base at the bottom of the supporting mechanism, so as to be fixed on the steel bars of a beam body, avoid handheld shaking, improve the detection precision, and electrically connect the detection box with a plurality of scale connecting rods through the electrical shell, so that the length of the scale connecting rod is 1-3m and the scale connecting rod can be connected, the rod body is provided with a scale, the probe insertion depth can be recorded, the use range is improved, and the flexibility of use is improved.

[0017] 2. The inside of the detection box is fixedly provided with an integrated GPS and inertial navigator, a heating sheet and a temperature sensor, the integrated GPS and inertial navigator ensures that the inertial navigation precision is less than or equal to 5cm, the temperature sensor can detect the temperature of the detection box, the influence of the environmental temperature on the detection data is compensated through the heating sheet, the precision is improved, the integrated GPS and inertial navigator positioning and cloud data transmission improve the detection precision and the engineering management efficiency, reduce the equipment purchase and operation and maintenance cost, and compared with separately purchasing two kinds of equipment, the cost is reduced by more than 40%.

[0018] 3. The ultrasonic detector in the miniature probe emits high-frequency sound waves of 1-5MHz. It judges hollowness by the attenuation rate of the reflected wave. When the attenuation rate is >30%, it is a hollow defect. The wide-angle probe is equipped with a dual-mode electromagnetic and ultrasonic detector. It identifies the density of the grout by the change of magnetic field. When the magnetic field strength fluctuation is >5%, it is a crack defect. If the wave velocity is <3000m / s, it is judged as insufficient grout strength. The end is connected by magnetic attraction, which improves the convenience of use, reduces the equipment investment cost, improves the detection efficiency, and unifies data management, which facilitates quality traceability. It promotes the integrated development of bridge and tunnel grouting detection technology and provides design ideas for similar cross-scenario detection equipment. It integrates the dual detection principles of ultrasonic and electromagnetic induction to simultaneously identify three types of defects: hollowness, cracks, and insufficient strength, covering the detection needs of two scenarios. The modular probe design realizes the adaptation of small-diameter pipes in bridges and large-diameter ducts in tunnels, solving the problem of equipment specialization.

[0019] 4. Connect one end of the grouting test connection pipe to the prestressed pipe and the other end to the air pump. Use a flow rate sensor to detect the air flow rate to determine whether the inside of the prestressed pipe is blocked. Clean the pipe's reserved hole in advance to remove debris. Slowly insert the probe into the pipe through the reserved hole at a speed ≤5cm / s to avoid signal interference.

[0020] 5. During grouting, connect the grouting connector to the prestressed duct or the tunnel grouting hole, and connect the grouting pump connector to the grouting pump. In other words, grouting can be carried out directly through the grouting test connection pipe. Meanwhile, the pressure sensor can be used to detect the pressure of the slurry on the electrical connector head of the housing directly connected to the detection box, thereby determining whether it is full. This improves the ease of use, makes the machine multi-functional, expands the scope of application, enhances the ease of operation, eliminates the need for frequent equipment replacement, and adapts to complex working environments. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the electrical housing of the present invention; Figure 3 This is a cross-sectional view of the detection box of the present invention; Figure 4 This is a structural diagram of the graduated splicing rod of the present invention; Figure 5 This is a structural diagram of the electrical connection mechanism of the present invention; Figure 6 This is a structural diagram of the detection box of the present invention; Figure 7 is a probe structure diagram of the present application; Figure 8 is a connecting diagram of the scale splicing rod of the present application; Figure 9 is a support mechanism structure diagram of the present application; Figure 10 is a structure diagram of the grouting detection connecting pipe of the present application; Figure 11 is a steering support arm mechanism diagram of the present application; Figure 12 is a structure diagram of the extension support arm of the present application.

[0022] In the figure, 1, grouting detection connecting pipe; 101, fixed support ring; 102, U-shaped turning groove; 103, display fixing ring; 104, threaded advancing ring; 105, grouting connecting head; 106, grouting pump connecting head; 2, support mechanism; 201, advancing nut; 2011, slip ring groove; 202, support connecting arm; 203, steering support arm; 2031, extension arm guide groove; 204, extension support arm; 2041, extension arm guide block; 2042, fastening bolt; 205, magnet connecting block; 206, rubidium magnet base; 2061, rubidium magnet adjusting bolt; 207, slip ring; 2071, slip ring connecting head; 3, electrical shell; 301, first positive electrode guide rod; 302, first negative electrode threaded ring; 303, shell electrical connecting head; 304, shell fixing plate; 4, scale splicing rod; 401, splicing rod male head; 402, splicing rod female head; 5, detection box; 501, second positive electrode guide rod; 5011, first positive electrode metal ring; 502, detection box negative electrode threaded ring; 5021, first negative electrode metal ring; 503, GPS and inertial navigator; 504, heating sheet; 505, probe connecting groove; 5051, first rubidium magnetic sheet; 506, detection box connecting head; 507, pressure sensor; 508, temperature sensor; 6, probe; 601, second positive electrode metal ring; 602, second negative electrode metal ring; 603, second rubidium magnetic sheet; 7, electrical connecting mechanism; 701, third positive electrode guide rod; 702, threaded ring wire; 7021, male negative electrode threaded ring; 7022, female negative electrode threaded ring; 8, display; 9, flow rate sensor; 10, storage battery; 11, double signal processing chip; 12, wireless transmission module. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0024] As Figures 1-12As shown, the bridge prestressed pipeline and tunnel grouting hole pressure grouting quality detection device provided by the embodiment comprises a pressure grouting detection connecting pipe 1 and an electrical shell 3 fixedly arranged in the pressure grouting detection connecting pipe 1. The electrical shell 3 is made of waterproof and wear-resistant ABS material, is suitable for a humid environment of a tunnel, has a size of 280x180x100mm, and is convenient for handheld operation in a narrow space of a bridge. A supporting mechanism 2 is arranged on the pressure grouting detection connecting pipe 1. A magnetic base is arranged at the bottom of the supporting mechanism 2 and can be fixed on a beam body reinforcement to avoid handheld shaking and improve the detection accuracy. The electrical shell 3 is electrically connected with a detection box 5 through a plurality of scale splice rods 4. The scale splice rods 4 have a length of 1-3m and can be spliced. The rods have scales to facilitate recording of the insertion depth of a probe. An integrated GPS and inertial navigator 503, a heating sheet 504, and a temperature sensor 508 are fixedly arranged in the detection box 5. The integrated GPS and inertial navigator 503 has an inertial navigation accuracy of ≤5cm to ensure accurate positioning of a defect position. The temperature sensor 508 can detect the temperature of the detection box 5 and compensate the influence of the ambient temperature on the detection data through the heating sheet 504 to improve the accuracy. The integrated GPS and inertial navigator 503 is used for positioning and cloud data transmission to improve the detection accuracy and engineering management efficiency, reduce the equipment purchase and operation and maintenance costs, and reduce the costs by more than 40% compared with separately purchasing two kinds of equipment. The detection box 5 is connected with a probe 6 in a magnetic attraction mode. The probe 6 comprises a miniature probe and a wide-angle probe. An ultrasonic detector is arranged in the miniature probe. The ultrasonic detector in the miniature probe emits 1-5MHz high-frequency sound waves to judge the hollowing through the reflection wave attenuation rate. When the attenuation rate is >30%, it is a hollowing defect. An electromagnetic and ultrasonic dual-mode detector is arranged in the wide-angle probe. The electromagnetic and ultrasonic dual-mode detector identifies the grout density through the magnetic field change. When the magnetic field strength fluctuation is >5%, it is a crack defect. If the wave speed is <3000m / s, it is determined that the grout strength is insufficient. The end is connected in a magnetic attraction mode to improve the convenience of use, reduce the equipment investment cost, improve the detection efficiency, and facilitate quality tracing. The data is uniformly managed to promote the integrated development of bridge and tunnel grouting detection technology, provide a design idea for similar cross-scene detection equipment, fuse the ultrasonic and electromagnetic induction double-detection principles, simultaneously identify three kinds of defects of hollowing, crack, and insufficient strength, and cover the detection requirements of two scenes. The modular probe design realizes the adaptation of the bridge small-diameter pipeline and the tunnel large-diameter hole, and solves the equipment specificity problem. The positive electrode and the second positive electrode lead rod 501 are electrically connected with the integrated GPS and inertial navigator 503, the heating sheet 504 and the temperature sensor 508; the negative electrode of the integrated GPS and inertial navigator 503, the heating sheet 504 and the temperature sensor 508 is electrically connected with the detection box negative electrode threaded ring 502; the inside of the electric shell 3 is fixedly provided with the electrically connected battery 10 and double signal processing chip 11; the integrated GPS and inertial navigator 503 and the heating sheet 504 are both in communication connection with the double signal processing chip 11; the probe 6 and the integrated GPS and inertial navigator 503 and the heating sheet 504 on the detection box 5 are all electrically connected with the double signal processing chip 11; the degree of automation is high and the timeliness is improved; In order to improve the detection range, a plurality of scale connecting rods 4 are connected in series to achieve the purpose of prolonging the detection, one end of the scale connecting rod 4 is provided with a male head 401, the other end is provided with a female head 402, and an electrical connection mechanism 7 is fixedly arranged on the scale connecting rod 4, the electrical connection mechanism 7 includes a third positive electrode lead rod 701 and a threaded ring lead wire 702, the third positive electrode lead rod 701 is fixedly arranged in the inside of the scale connecting rod 4, and the threaded ring lead wire 702 is electrically connected with a male negative threaded ring 7021 or a female negative threaded ring 7022 at both ends, the male negative threaded ring 7021 is arranged on the male head 401 and is electrically connected with the electric shell 3 or the female head 402, the female negative threaded ring 7022 is arranged in the inside of the female head 402 and is electrically connected with the male head 401 or the detection box 5, and in the process of connecting, specifically: Connecting the connecting rod: According to the needs of detection, a plurality of scale connecting rods 4 are connected in sequence, the male head 401 of one scale connecting rod 4 is rotated into the inside of the female head 402 of another scale connecting rod 4, the third positive electrode lead rod 701 in the inside of the scale connecting rod 4 is abutted to enable the third positive electrode lead rod 701 to pass through the electric current, and the male negative threaded ring 7021 on the male head 401 is abutted with the female negative threaded ring 7022 in the inside of the female head 402 to enable the threaded ring lead wire 702 to pass through the electric current; Connecting the electric shell 3 with the scale connecting rod 4: One end of the electrical shell 3 is provided with a shell electrical connector 303, and the male head 401 of the splicing rod is connected with the shell electrical connector 303 through thread rotation. One end of the above-mentioned multiple connecting rods, that is, the male head 401 of the splicing rod is rotated into the inside of the shell electrical connector 303. The inside of the shell electrical connector 303 is provided with a first positive pole guide rod 301 and a first negative pole threaded ring 302. The first positive pole guide rod 301 and the first negative pole threaded ring 302 are both in communication connection with the double signal processing chip 11. When the scale splicing rod 4 is connected with the electrical shell 3, the third positive pole guide rod 701 is in abutment with the first positive pole guide rod 301, and the male head negative pole threaded ring 7021 is in electrical connection with the first negative pole threaded ring 302, thereby completing the electrical connection between the electrical shell 3 and the scale splicing rod 4. Detection box connection: One end of the detection box 5 is connected with a detection box connector 506. The middle part of the detection box connector 506 is provided with a second positive pole guide rod 501. The outer side of the detection box connector 506 is fixedly provided with a detection box negative pole threaded ring 502. The detection box connector 506 is rotated into the inside of the female head 402, so that the second positive pole guide rod 501 is in abutment with the third positive pole guide rod 701, and the detection box negative pole threaded ring 502 is in abutment with the female head negative pole threaded ring 7022, thereby completing the installation of the detection box 5. Probe installation: One end of the probe 6 is fixedly provided with a second positive pole metal ring 601 and a second negative pole metal ring 602. When the probe 6 is clamped with the probe connecting groove 505, the second positive pole metal ring 601 is in electrical connection with the first positive pole metal ring 5011, and the second negative pole metal ring 602 is in electrical connection with the first negative pole metal ring 5021. One end of the detection box 5 away from the scale splicing rod 4 is provided with a probe connecting groove 505. The inside of the probe connecting groove 505 is fixedly provided with a first positive pole metal ring 5011 and a first negative pole metal ring 5021. The first positive pole metal ring 5011 is in electrical connection with the second positive pole guide rod 501, and the first negative pole metal ring 5021 is in electrical connection with the detection box negative pole threaded ring 502. When the probe 6 is clamped with the detection box 5, one end of the probe 6 is inserted into the inside of the probe connecting groove 505, so that the second positive pole metal ring 601 is in abutment with the first positive pole metal ring 5011, and the second negative pole metal ring 602 is in abutment with the first negative pole metal ring 5021, thereby enabling the detection box 5 to be in electrical connection with the probe 6, and completing the installation of the probe 6. In addition, in order to ensure the stability of the connection between the detection box 5 and the probe 6, and to facilitate the replacement of the probe 6, such as Figure 1As shown, the inside of the probe connecting groove 505 is fixedly provided with a first rubidium magnetic sheet 5051, one end of the probe 6 is fixedly provided with a second rubidium magnetic sheet 603, when the probe 6 is clamped with the detection box 5, the magnetic poles of the first rubidium magnetic sheet 5051 and the second rubidium magnetic sheet 603 are opposite, under the action of the magnetic force, the probe 6 can be directly fixed on the detection box 5, which is convenient for installation and replacement, improves the convenience of use and the efficiency of detection.

[0025] Further, as shown in Figure 10 and Figure 11 shown, the support mechanism 2 includes a pushing nut 201 and a steering support arm 203, the steering support arm 203 is slidably provided with an extension support arm 204, the outer side of the slurry detection connecting pipe 1 is fixedly provided with a threaded pushing ring 104, the pushing nut 201 is connected with the threaded pushing ring 104 through thread engagement, by pushing the pushing nut 201 on the threaded pushing ring 104, the purpose of stretching the steering support arm 203 is achieved, the slurry detection connecting pipe 1 is fixedly provided with a fixed support ring 101, the fixed support ring 101 is fixedly provided with a U-shaped turning groove 102, one end of the steering support arm 203 is rotatably arranged on the U-shaped turning groove 102, the pushing nut 201 is rotatably connected with the steering support arm 203 through a support connecting arm 202, in the process of pushing the threaded pushing ring 104 upward, the steering support arm 203 is pulled upward through the support connecting arm 202, one end of the steering support arm 203 is rotatably arranged on the fixed support ring 101, thereby increasing the range of opening of the steering support arm 203, thereby improving the range of use; Since the pushing nut 201 and the threaded pushing ring 104 are connected through thread engagement, in order to ensure that the support connecting arm 202 is pulled upward in the process of rotating the pushing nut 201, as shown in Figure 1 a sliding ring groove 2011 is formed in the pushing nut 201, a sliding ring 207 is rotatably arranged in the sliding ring groove 2011, a sliding ring connecting head 2071 is fixedly arranged on the sliding ring 207, the sliding ring connecting head 2071 is rotatably connected with one end of the support connecting arm 202, the other end of the support connecting arm 202 is rotatably connected with the steering support arm 203, one end of the support connecting arm 202 is connected with the sliding ring 207 through the sliding ring connecting head 2071, that is, the sliding ring 207 and the support connecting arm 202 will not rotate in the process of rotating the pushing nut 201, the purpose of opening the steering support arm 203 is achieved; In order to further increase the contact area of the support mechanism 2, as shown in Figure 12As shown, one end of the extension support arm 204 is connected with an extension arm guide block 2041, the extension arm guide groove 2031 is opened on the steering support arm 203, the extension arm guide block 2041 is slidingly arranged in the extension arm guide groove 2031, and the extension support arm 204 is fixed by the fastening bolt 2042, the extension support arm 204 is connected to the steering support arm 203, the contact area of the support mechanism 2 is expanded by extending the steering support arm 203, the stability of the pressure grouting detection connecting pipe 1 is improved, and the position of the probe 6 can also be adjusted by adjusting the extension support arm 204; In order to improve the stability of the pressure grouting detection connecting pipe 1, the extension support arm 204 is rotatably connected with a magnet connecting block 205 away from the pressure grouting detection connecting pipe 1, the magnet connecting block 205 is connected with a rubidium magnet base 206 through a rubidium magnet adjusting bolt 2061, the rubidium magnet base 206 is directly fixed on the beam body steel bar, handheld shaking is avoided, the stability of the probe 6 is improved, and the detection accuracy is improved.

[0026] Further, as shown in Figure 2 and Figure 3 , the electrical shell 3 is fixedly arranged in the pressure grouting detection connecting pipe 1 through the shell fixing plate 304, the electrical shell 3 is connected with the flow rate sensor 9 away from the scale spliced rod 4, the flow rate sensor 9 is electrically connected with the double signal processing chip 11, one end of the pressure grouting detection connecting pipe 1 is connected with the prestressed pipe, the other end is connected with the air pump, the flow rate of the air is detected by the flow rate sensor 9 to judge whether the inside of the prestressed pipe is blocked, the pipe reserved hole is cleaned in advance to remove sundries, the probe is slowly inserted into the pipe through the reserved hole, the insertion speed is ≤5cm / s, and the interference signal is avoided; The double signal processing chip 11 is electrically connected with the wireless transmission module 12, the wireless transmission module 12 is connected with the cloud platform in a wireless manner, the wireless transmission module 12 supports Bluetooth 5.0 and 4G / 5G dual mode, can upload the detection data to the cloud platform in real time, supports multiple devices sharing data, is convenient for unified management of bridge-tunnel projects, improves timeliness, and as shown in Figure 1 , the double signal processing chip 11 is connected with the display 8 through a wire, the display fixing ring 103 is fixedly arranged on the pressure grouting detection connecting pipe 1, the display 8 is rotatably arranged on the display fixing ring 103, the display 8 displays the detection curve, the defect position coordinates in real time, and supports parameter adjustment.

[0027] Further, as shown in Figure 2 and Figure 10As shown, one end of the grouting detection connecting pipe 1 is connected with the grouting pump connecting head 106, and the other end is connected with the grouting connecting head 105. When the detection box connecting head 506 is connected with the shell electrical connecting head 303, the second positive pole guide rod 501 is electrically connected with the first positive pole guide rod 301, and the detection box negative pole threaded ring 502 is electrically connected with the first negative pole threaded ring 302. When grouting, the grouting connecting head 105 is connected with the prestressed pipe or the tunnel grouting hole, and the grouting pump connecting head 106 is connected with the grouting pump, that is, the grouting can be directly performed through the grouting detection connecting pipe 1. At the same time, as shown in Figure 10 The outer side surface of the detection box 5 is fixedly provided with a pressure sensor 507 on the shell electrical connecting head 303 to which the detection box 5 is directly connected. The positive pole of the pressure sensor 507 is electrically connected with the second positive pole guide rod 501, and the negative pole of the pressure sensor 507 is electrically connected with the detection box negative pole threaded ring 502. The pressure of the grout is detected through the pressure sensor 507 to determine whether it is full, thereby improving the convenience of use, one machine with multiple uses, improving the range of use, and improving the operation convenience without frequent replacement of equipment, adapting to complex operation environment.

[0028] As shown in Figures 1-12 The principle of the grouting quality detection device for the bridge prestressed pipe and the tunnel grouting hole provided by the embodiment is as follows: The electric shell 3 adopts waterproof and wear-resistant ABS material, which is suitable for the humid environment of the tunnel, and the size is 280*180*100mm, which is convenient for handheld operation in the narrow space of the bridge. The support mechanism 2 is arranged on the pressure grouting detection connecting pipe 1, the bottom of the support mechanism 2 is provided with a magnetic base which can be fixed on the steel bar of the beam body, so as to avoid handheld shaking and improve the detection accuracy. The electric shell 3 is electrically connected with the detection box 5 through a plurality of scale splicing rods 4, the length of the scale splicing rod 4 is 1-3m and can be spliced, the rod body is provided with a scale, which is convenient for recording the insertion depth of the probe, and the inside of the detection box 5 is fixedly provided with an integrated GPS and inertial navigator 503, a heating sheet 504 and a temperature sensor 508. The integrated GPS and inertial navigator 503 makes the inertial navigation accuracy ≤5cm, ensures the accurate positioning of the defect position, and the temperature sensor 508 can detect the temperature of the detection box 5 and compensate the influence of the environmental temperature on the detection data through the heating sheet 504, so as to improve the accuracy. The integrated GPS and inertial navigator 503 positioning and cloud data transmission can improve the detection accuracy and engineering management efficiency, reduce the equipment purchase and operation cost, and compared with separately purchasing two kinds of equipment, the cost is reduced by more than 40%. The detection box 5 is connected with the probe 6 through magnetic attraction, the probe 6 includes a micro probe and a wide-angle probe, the inside of the micro probe is provided with an ultrasonic detector, the ultrasonic detector in the micro probe emits 1-5MHz high-frequency sound wave, and the hollow drum is judged by the reflection wave attenuation rate. When the attenuation rate is >30%, it is a hollow drum defect. The inside of the wide-angle probe is provided with an electromagnetic and ultrasonic dual-mode detector, the slurry density is identified by the magnetic field change, and when the magnetic field strength fluctuation is >5%, it is a crack defect. If the wave velocity is <3000m / s, it is determined that the slurry strength is insufficient. The end is connected in a magnetic attraction mode, which improves the convenience of use, reduces the equipment investment cost, improves the detection efficiency, and the data is uniformly managed, which is convenient for quality tracing, promotes the integrated development of bridge and tunnel grouting detection technology, provides a design idea for similar cross-scene detection equipment, and fuses the ultrasonic and electromagnetic induction double detection principles to identify three kinds of defects of hollow drum, crack and insufficient strength, covering the detection needs of two scenes. The modular probe design realizes the adaptation of the small-diameter pipeline of the bridge and the large-diameter hole of the tunnel, and solves the problem of equipment specificity.

[0029] Some terms are used in the description and claims to refer to certain components. Those skilled in the art will understand that the hardware manufacturers can use different names to refer to the same component. The description and claims of this specification do not distinguish the components by the difference in name, but by the difference in function. As mentioned throughout the specification and claims, "comprising" is an open term, which should be interpreted as "comprising but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0030] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0031] The foregoing specification has been described in accordance with the understanding that the application is not to be limited by particular details described herein. Since the application can be implemented in a variety of ways, the above description is not intended to be exhaustive or to be unduly restrictive of the application. The terminology used is that set forth by the American Psychological Association and the IEEE. The sole and complete description of the application is provided by the patent claims, with each claim setting forth a separate disclosure independently.

Claims

1. Bridge prestressed pipe and tunnel grouting hole pressure grouting quality detection device, including pressure grouting detection connecting pipe (1) and the electrical shell (3) fixedly arranged in the pressure grouting detection connecting pipe (1), characterized in that, The support mechanism (2) is arranged on the pressure grouting detection connecting pipe (1), the electrical shell (3) is electrically connected with the detection box (5) through a plurality of scale splicing rods (4), the GPS and inertial navigator (503), the heating sheet (504) and the temperature sensor (508) are fixedly arranged in the detection box (5), the detection box (5) is connected with the probe (6) in a magnetic attraction mode, the probe (6) comprises a micro probe and a wide-angle probe, an ultrasonic detector is arranged in the micro probe, and an electromagnetic and ultrasonic dual-mode detector is arranged in the wide-angle probe; The electrical shell (3) is fixedly provided with the electrically connected battery (10) and double signal processing chip (11) in the inside, the GPS and inertial navigator (503) and the heating sheet (504) are both in communication connection with the double signal processing chip (11); One end of the scale splicing rod (4) is provided with a splicing rod male head (401), the other end is provided with a splicing rod female head (402), the scale splicing rod (4) is fixedly provided with an electrically connected mechanism (7), the electrically connected mechanism (7) comprises a third positive pole guide rod (701) and a threaded ring wire (702), the third positive pole guide rod (701) is fixedly arranged in the inside of the scale splicing rod (4), the threaded ring wire (702) is electrically connected with a male negative pole threaded ring (7021) or a female negative pole threaded ring (7022) at both ends, the male negative pole threaded ring (7021) is arranged on the splicing rod male head (401) and is electrically connected with the electrical shell (3) or the splicing rod female head (402), the female negative pole threaded ring (7022) is arranged in the inside of the splicing rod female head (402) and is electrically connected with the splicing rod male head (401) or the detection box (5).

2. The bridge prestressed duct and tunnel grouting hole for the pressure grouting quality detection device of claim 1, characterized in that: One end of the electrical shell (3) is provided with a shell electrically connected head (303), the splicing rod male head (401) is connected with the shell electrically connected head (303) through thread rotation, the inside of the shell electrically connected head (303) is provided with a first positive pole guide rod (301) and a first negative pole threaded ring (302), the first positive pole guide rod (301) and the first negative pole threaded ring (302) are both in communication connection with the double signal processing chip (11); When the scale splicing rod (4) is connected with the electrical shell (3), the third positive pole guide rod (701) abuts against the first positive pole guide rod (301), and the male negative pole threaded ring (7021) is electrically connected with the first negative pole threaded ring (302).

3. The bridge prestressed duct and tunnel grouting hole for the pressure grouting quality detection device of claim 2, characterized in that: One end of the detection box (5) is connected with a detection box connector (506), the middle part of the detection box connector (506) is provided with a second positive electrode guide rod (501), the outer side of the detection box connector (506) is fixedly provided with a detection box negative threaded ring (502), the positive electrode of the GPS and inertial navigator (503), the heating sheet (504) and the temperature sensor (508) is electrically connected with the second positive electrode guide rod (501), and the negative electrode of the GPS and inertial navigator (503), the heating sheet (504) and the temperature sensor (508) is electrically connected with the detection box negative threaded ring (502).

4. The bridge prestressed duct and tunnel grouting hole for the pressure grouting quality detection device of claim 3, characterized in that: The detection box (5) is provided with a probe connecting groove (505) away from one end of the scale splicing rod (4), the inside of the probe connecting groove (505) is fixedly provided with a first positive electrode metal ring (5011) and a first negative electrode metal ring (5021), the first positive electrode metal ring (5011) is electrically connected with the second positive electrode guide rod (501), and the first negative electrode metal ring (5021) is electrically connected with the detection box negative threaded ring (502). One end of the probe (6) is fixedly provided with a second positive electrode metal ring (601) and a second negative electrode metal ring (602), wherein when the probe (6) is clamped with the probe connecting groove (505), the second positive electrode metal ring (601) is electrically connected with the first positive electrode metal ring (5011), and the second negative electrode metal ring (602) is electrically connected with the first negative electrode metal ring (5021).

5. The bridge prestressed duct and tunnel grouting hole used pressure grouting quality detection device according to claim 4, characterized in that: The inside of the probe connecting groove (505) is fixedly provided with a first rubidium magnetic sheet (5051), one end of the probe (6) is fixedly provided with a second rubidium magnetic sheet (603), and when the probe (6) is clamped with the detection box (5), the magnetic poles of the first rubidium magnetic sheet (5051) and the second rubidium magnetic sheet (603) are opposite.

6. The bridge prestressed duct and tunnel grouting hole for the pressure grouting quality detection device of claim 1, characterized in that: The support mechanism (2) comprises a propelling nut (201) and a steering support arm (203), an extension support arm (204) is slidably arranged on the steering support arm (203), a threaded propelling ring (104) is fixedly arranged on the outer side of the pressure grouting detection connecting pipe (1), and the propelling nut (201) is connected with the threaded propelling ring (104) through thread engagement; A fixed support ring (101) is fixedly arranged on the pressure grouting detection connecting pipe (1), a U-shaped turning groove (102) is fixedly arranged on the fixed support ring (101), one end of the steering support arm (203) is rotatably arranged on the U-shaped turning groove (102), and the propelling nut (201) is rotatably connected with the steering support arm (203) through a support connecting arm (202).

7. The bridge prestressed duct and tunnel grouting hole used pressure grouting quality detection device according to claim 6, characterized in that: The sliding ring groove (2011) is internally rotatably provided with a sliding ring (207), the sliding ring (207) is fixedly provided with a sliding ring connecting head (2071), the sliding ring connecting head (2071) is rotatably connected with one end of the support connecting arm (202), and the other end of the support connecting arm (202) is rotatably connected with the steering support arm (203).

8. The bridge prestressed duct and tunnel grouting hole used pressure grouting quality detection device according to claim 7, characterized in that: One end of the extension support arm (204) is connected with an extension arm guide block (2041), the steering support arm (203) is provided with an extension arm guide groove (2031), the extension arm guide block (2041) is slidably arranged in the extension arm guide groove (2031), and the extension support arm (204) is fixed by a fastening bolt (2042); The magnet connecting block (205) is rotatably connected with a rubidium magnet base (206) through a rubidium magnet adjusting bolt (2061).

9. The bridge prestressed duct and tunnel grouting hole used pressure grouting quality detection device according to claim 1, characterized in that: The electrical shell (3) is fixedly arranged in the interior of the grouting detection connecting pipe (1) through a shell fixing plate (304), the electrical shell (3) is connected with a flow rate sensor (9) away from one end of the scale spliced rod (4), and the flow rate sensor (9) is electrically connected with the double-signal processing chip (11). The double-signal processing chip (11) is electrically connected with a wireless transmission module (12), the wireless transmission module (12) is connected with a cloud platform in a wireless mode, the double-signal processing chip (11) is connected with a display (8) through a wire, the grouting detection connecting pipe (1) is fixedly provided with a display fixing ring (103), and the display (8) is rotatably arranged on the display fixing ring (103).

10. The bridge prestressed duct and tunnel grouting hole used pressure grouting quality detection device according to claim 5, characterized in that: The outer side of the detection box (5) is fixedly provided with a pressure sensor (507), the positive electrode of the pressure sensor (507) is electrically connected with the second positive electrode guide rod (501), and the negative electrode of the pressure sensor (507) is electrically connected with the detection box negative electrode threaded ring (502). One end of the grouting detection connecting pipe (1) is connected with a grouting pump connecting head (106), the other end is connected with a grouting connecting head (105), when the detection box connecting head (506) is connected with the shell electrical connecting head (303), the second positive electrode guide rod (501) is electrically connected with the first positive electrode guide rod (301), and the detection box negative electrode threaded ring (502) is electrically connected with the first negative electrode threaded ring (302).

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