CN218766774U

CN218766774U - Lifting type infrared thermal image ultrasonic detector

Info

Publication number: CN218766774U
Application number: CN202222989103.8U
Authority: CN
Inventors: 钱思蓉; 许靖航; 彭广勇; 彭松; 周乃成
Original assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Current assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-28
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses an over-and-under type thermal infrared imagery ultrasonic detector, including portable base, install the atmospheric pressure elevating gear on portable base and the light-duty workstation of formula of can carrying that is connected with atmospheric pressure elevating gear, but the light-duty workstation of formula of carrying is including rotating the scalable ultrasonic transducer and the thermal infrared imagery collector of connecting in atmospheric pressure elevating gear's workstation plastic housing and installing on workstation plastic housing, and the one end of scalable ultrasonic transducer dorsad workstation plastic housing is provided with pressure sensor and passes through the same baffle of spring and connect. The utility model has the advantages that: the problem that the handheld ultrasonic detector cannot detect high-rise structures and is unstable in detection can be solved, the inspection route is clear, the operation is convenient and fast, and the handheld ultrasonic detector is suitable for regular inspection and maintenance of large structures; compare in the mode of unmanned aerial vehicle carried on the detector, the cost is lower, and uses not restricted by the environment, does not receive signal interference, and the feature of environmental protection is better.

Description

Lifting type infrared thermal image ultrasonic detector

Technical Field

The utility model belongs to the technical field of the technique that constructs the thing and detects and specifically relates to an over-and-under type infrared thermal imagery ultrasonic detector.

Background

As a city complement, the construction project quality of water supply plants, sewage plants and other construction projects should be strictly restricted, and the water treatment structure is used as the treatment main body of the water supply plant, most of the water treatment structure adopts a reinforced concrete structure, so that the possibility of crack and hole leakage exists, and if the water treatment structure has a leakage problem, the operation and the use are seriously influenced.

The initial leakage characterization of the water tank is not obvious, and workers often judge the initial leakage characterization through visual observation, but the method is difficult to distinguish the leakage cracks of the water tank from the natural cracks of the tank wall, and places which cannot be reached by visual observation cannot be observed. If the underground part water treatment structure leaks, the leakage condition can be known through the internal water level change, but the method is only suitable for the conditions of serious leakage and large leakage amount, and can not judge whether the pool has early cracks and initial leakage or not and can not judge the specific leakage position.

The ultrasonic detection method is widely used in practical engineering. The ultrasonic method determines the position, size or distribution of the crack by utilizing the sound time and sound velocity in the propagation process, the diffraction of the wave at the interface of the dissimilar medium, the scattering of the wave at the defect and the like.

Current detection device is mostly handheld ultrasonic detector, and handheld ultrasonic detector flexibility ratio is high, and the structure is comparatively simple, and the supporting device is not had in the hand-held, need hold the use with the hand, and it is restricted to use the scene, is difficult to detect water treatment structures eminence position, because stability is not enough, and monitoring data is not accurate enough, and structures patrol and examine and easily exist and omit.

The temperature field method leakage detection is a method for obtaining the surface temperature field distribution of a target object through a thermal infrared imager so as to judge the internal state of the target. After the water drainage of the water tank is finished, a natural temperature field exists on the wall surface of the water tank, the wall of the water tank is influenced by the ground temperature and natural cracks, the cracks of the water tank are influenced by factors such as water scale and water temperature, and under the combined action of all the factors, the surface of the wall of the water tank shows the phenomenon of uneven temperature. If the pool wall has cracks, the capillary water absorption effect of concrete microcracks can be caused, and when water with low temperature stays in weak cracks or channels of the pool wall, the temperature of the part can be changed, so that local abnormity of a temperature field is caused. For most of pools, it is not very practical to simply research the distribution of the pool wall temperature field, but it is more and more practical to utilize the temperature field to invert the seepage field and find the early cracks through the temperature distribution so as to reach the purposes of finding the seepage position and detecting the seepage velocity and the seepage quantity.

The thermal infrared imager method has both sensitivity and rapidness, can realize temperature measurement in a large range, and can prejudge the pool leakage before the leakage causes major problems. In the past, structures are mostly detected in a mode that an unmanned aerial vehicle carries a thermal infrared imager, but the method is short in endurance time, difficult to maintain long-time detection requirements, prone to being influenced by wind speed in the flying process and poor in stability, and prone to being interfered by signals and sound waves in the detection process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an over-and-under type thermal infrared imagery ultrasonic detector according to above-mentioned prior art's is not enough, provides a lifting type thermal infrared imagery ultrasonic detector, through setting up portable base, atmospheric pressure elevating gear and portable light-duty workstation to but install scalable ultrasonic transducer and thermal infrared imagery collector on portable light-duty workstation, can realize the detection to large-scale water treatment structures structural defect.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a over-and-under type infrared thermal imagery ultrasonic detector which characterized in that: including portable base, install atmospheric pressure elevating gear on the portable base and with the portable light-duty workstation that atmospheric pressure elevating gear connects, portable light-duty workstation including rotate connect in atmospheric pressure elevating gear's workstation plastic housing and install scalable ultrasonic probe and infrared thermal image collector on the workstation plastic housing, scalable ultrasonic probe dorsad workstation plastic housing's one end is provided with pressure sensor just pressure sensor passes through the same baffle of spring and connects.

Atmospheric pressure elevating gear includes and installs through the circle tray housing on the portable base, install telescopic cylinder on the housing and setting are in telescopic joint on the telescopic cylinder, be provided with chargeable lithium cell, wireless transceiver and atmospheric pressure motor in the housing, chargeable lithium cell does wireless transceiver with the atmospheric pressure motor power supply, wireless transceiver with the atmospheric pressure motor communication is connected, the atmospheric pressure motor drive telescopic cylinder work is in order to drive telescopic joint makes elevating movement.

Workstation plastic housing through rotary platform and bottom connection base rotate connect in the telescopic joint, wherein, rotary platform rotate connect in bottom connection base, rotary platform with workstation plastic housing bottom connection base with be fixed connection between the telescopic joint.

The air pressure lifting device, the rotary platform, the telescopic ultrasonic probe and the thermal infrared image collector are all in communication connection with the central control console.

The movable base is composed of a tripod and universal wheels arranged at the bottom of the tripod.

The utility model has the advantages that: the problem that the handheld ultrasonic detector cannot detect high-rise structures and is unstable in detection can be solved, the inspection route is clear, the operation is convenient and fast, and the handheld ultrasonic detector is suitable for regular inspection and maintenance of large structures; compared with a mode that an unmanned aerial vehicle carries a detector, the unmanned aerial vehicle detector is lower in cost, free of environmental limitation in use and signal interference, and better in environmental friendliness; the stability and the accuracy are greatly improved in the detection process, and the number of measurable points per hour is obviously increased.

Drawings

FIG. 1 is an assembly view of the lifting type infrared thermal imaging ultrasonic detector of the utility model;

FIG. 2 is a schematic view of a tripod according to the present invention;

FIG. 3 is a schematic view of the portable light workbench of the present invention;

fig. 4 is a schematic view of the retractable ultrasonic probe of the present invention.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings for the understanding of those skilled in the art:

as shown in FIGS. 1-4, the numbers 1-20 in the figures are respectively indicated as a universal wheel 1, a tripod 2, a housing 3, a wireless transceiver 4, a telescopic cylinder 5, a telescopic joint 6, a portable light workbench 7, a center console 8, a support 9, a workbench plastic housing 10, a first telescopic ultrasonic probe 11, a thermal infrared imager collector 12, a second telescopic ultrasonic probe 13, a communication wire 14, a rotating platform 15, a bottom connecting base 16, a spring 17, a pressure sensor 18, a round tray 19 and a baffle 20.

Example (b): as shown in fig. 1, the embodiment relates to an over-and-under type infrared thermal image ultrasonic detector, it includes portable base, install the atmospheric pressure elevating gear on portable base and the portable light-duty workstation 7 of being connected with atmospheric pressure elevating gear, portable light-duty workstation 7 is including rotating the workstation plastic housing 10 that connects in atmospheric pressure elevating gear and install scalable ultrasonic probe and thermal infrared image collector 12 on workstation plastic housing 10, wherein, the fretwork of workstation plastic housing 10 top can be carried, and workstation plastic housing 10 adopts the PVC material, and is light and durable. The portable base can freely remove, atmospheric pressure elevating gear can go up and down, go up and down to the corresponding height of structure with the light-duty workstation 7 of drive portable, and can detect the structure through scalable ultrasonic probe and thermal infrared image collector 12, specifically, through going up and down to patrol and examine, confirm the defect position, through ultrasonic scanning, catch structure hole defect, when reading the record, wave amplitude and dominant frequency value, the access wave form, if there is not unusual corresponding position thermal infrared image, then can tentatively judge this defect position and not produce the seepage yet, if corresponding position thermal infrared image temperature is unusual, then can tentatively judge and change the defect position and produced the seepage. In the embodiment, the maximum collecting height of the telescopic ultrasonic probe is 3.5m through the air pressure lifting device, so that the detection requirements of most water treatment structures can be met.

As shown in fig. 1 and 2, the movable base is composed of a tripod 2 and a universal wheel 1 mounted at the bottom of the tripod 2, and the tripod 2 can provide a supporting function and can keep the whole construction stable and balanced and is not easy to overturn. Wherein, tripod 2 comprises three support 9 to an universal wheel 1 of the equal fixedly connected with in every support 9 bottom all is equipped with a brake equipment on every universal wheel 1, makes the detector have and removes, turns to the function, and in this embodiment, tripod 2 self vertical height can reach 1.5m after the assembly is accomplished. After the detector is arranged at a detection position, the detector can be braked and fixed, and then lifting detection is carried out at the position of the structure; after the position detection is finished, the brake is released, the detector is moved to the next position, the brake and the lifting detection are continued, the whole building vertical face is comprehensively inspected, and the inspection route is more accurate and clearer than that of a handheld detector. In addition, the top of each support 9 of the tripod 2 is provided with a fixing support, and each fixing support is provided with two screw holes and two locking screws for being connected with a pneumatic lifting device.

As shown in fig. 1, the air pressure lifting device comprises a housing 3 installed on the movable base through a round tray 19, a telescopic cylinder 5 installed on the housing 3 and a telescopic joint 6 arranged on the telescopic cylinder 5, a rechargeable lithium battery is arranged in the housing 3, a wireless transceiver 4 and an air pressure motor are arranged on the outer wall of the housing 3, the rechargeable lithium battery supplies power to the wireless transceiver 4 and the air pressure motor, the wireless transceiver 4 is in communication connection with the air pressure motor, the air pressure motor drives the telescopic cylinder 5 to work to drive the telescopic joint 6 to do lifting motion, so that the telescopic ultrasonic probe and the infrared thermal image collector 12 are stopped at the height of a structure for measurement and collection, and the problem that the unstable hand shakes and the focusing abnormality measurement is inaccurate when the manual handheld ultrasonic detector is used for detection is effectively solved. The bottom of the housing 3 is fixedly connected with a round tray 19, six screw holes are formed in the edge of the round tray 19, the positions of the screw holes in the round tray 19 correspond to those of the screw holes in the fixing support of the tripod 2, and the movable base and the air pressure lifting device can be fixed together by matching locking screws with the screw holes in the round tray 19 and the fixing support and can be detached for convenient transportation; the top of the telescopic joint 6 is provided with internal threads which can be movably connected with a light-duty portable workbench 7. The telescopic cylinder 5 is a single-acting cylinder, and in the selection of the cylinder diameter, if the cylinder diameter is selected to be small, the output force is insufficient, and the cylinder cannot work normally; if the cylinder diameter is too large, the equipment is heavy, the cost is high, the air consumption is increased, energy waste is caused, and a proper size model can be selected according to requirements. The lifting speed of the telescopic joint 6 is 20cm/s, the height can reach 3.4m, and the working requirement of the portable light workbench 7 is met. The height of the telescopic cylinder 5 is 90cm, and the highest telescopic joint 6 can be lifted by 90cm. The telescopic cylinder 5 and the telescopic joint 6 are made of aluminum alloy materials.

As shown in fig. 1 and 3, the plastic cover 10 of the workbench is rotatably connected to the telescopic joint 6 through a rotary platform 15 and a bottom connection base 16, wherein the rotary platform 15 is rotatably connected to the bottom connection base 16, and the rotary platform 15 and the plastic cover 10 of the workbench, and the bottom connection base 16 and the telescopic joint 6 are fixedly connected. Specifically, the lower part of the bottom connecting base 16 is provided with a cylindrical protrusion, the cylindrical protrusion is provided with an external thread, and the bottom connecting base 16 is connected with the telescopic joint 6 through the matching of the cylindrical protrusion external thread and the internal thread at the top of the telescopic joint 6; the horizontal rotation angle of the rotating platform 15 is 0-350 degrees.

As shown in fig. 1, 3 and 4, the portable light workbench 7 is equipped with two retractable ultrasonic probes, namely a first retractable ultrasonic probe 11 and a second retractable ultrasonic probe 13, at the same time, when a structure has a structural defect, a pulse wave is reflected and scattered at a defect interface when encountering a hole or a gap, the propagation speed of the ultrasonic pulse wave is changed, and the position and the size of the defect can be judged by using the measured value of the acoustic parameter. One end of the telescopic ultrasonic probe, which is opposite to the plastic casing 10 of the workbench, is provided with a pressure sensor 18, the pressure sensor 18 is connected with a baffle 20 through a spring 17, when the telescopic ultrasonic probe extends outwards and the baffle 20 is in contact with the surface of a structure, the pressure sensor 18 receives a pressure signal and can control the telescopic ultrasonic probe to stop extending outwards, and the spring 17 can enable the telescopic ultrasonic probe to be in a buffering process when the telescopic ultrasonic probe is close to the surface of the structure. The portable light workbench 7 is provided with an infrared thermal image collector 12, and due to the existence of structural defects of the water treatment structure, water stored in the structure can permeate through the gaps of the defects, so that natural thermal excitation is formed, the internal thermal properties of the structure have certain difference, the heat conduction is discontinuous, and the difference of the surface temperature of the concrete member can be reflected, so that the local area of the surface of the concrete member generates temperature gradient, and the infrared heat energy is changed. By the arrangement of the thermal infrared imager 12, the digital thermal infrared imager can scan the heat energy distribution of the concrete structure, the thermal imaging atlas is obtained, the information of the defect diseases can be deduced in an auxiliary way, and the detection accuracy is improved.

As shown in fig. 1, the detector is further provided with a central console 8, the central console 8 is in communication connection with the air pressure lifting device, the rotary platform 15, the telescopic ultrasonic probe and the thermal infrared image collector 12, and the central console 8 has functions of controlling the operation stop of the telescopic air cylinder 5, controlling the focal lengths of the telescopic ultrasonic probe and the thermal infrared image collector 12, receiving pictures in real time for data analysis, controlling the horizontal rotation of the portable light workbench 7 and the like. The central console 8 comprises a central processing unit, a liquid crystal display screen, a signal converter and a memory card, the central processing unit is connected with the telescopic ultrasonic probe and the thermal infrared image collector 12 through a communication wire 14, the telescopic ultrasonic probe can be controlled to transmit ultrasonic waves and receive signals, the thermal infrared image collector 12 can be controlled to transmit infrared rays and receive thermal infrared image data, and finally the liquid crystal display screen is controlled by the display screen driving circuit to display related parameter signals; the center console 8 is also in communication connection with the pressure sensor 18 and the telescopic device on the telescopic ultrasonic probe respectively, the center console 8 can control the telescopic ultrasonic probe to stretch, the pressure signal of the pressure sensor 18 can be transmitted to the center console 8 in real time, and when the center console 8 monitors that the pressure signal of the pressure sensor 18 is not 0, the telescopic device on the telescopic ultrasonic probe can be controlled to stop stretching outwards. The center console 8 is in communication connection with the wireless transceiver 4, the center console 8 transmits an operation instruction to the wireless transceiver 4, the wireless transceiver 4 controls the air pressure motor to work, and the air pressure motor drives the telescopic cylinder 5 to work to drive the telescopic joint 6 to do lifting motion. In addition, the center console 8 is internally provided with a rechargeable lithium battery and is provided with a 220V power adapter, and the full-power state can be used for 12 hours.

The embodiment also has the following beneficial effects: the problem that the existing handheld detector cannot reach the high part of a structure can be solved, and the problems that the existing unmanned aerial vehicle carries a thermal infrared imager, has short endurance time and insufficient stability, and is easily interfered by signals and sound waves can also be solved; ultrasonic detection and infrared thermal image detection are carried out through a double working mechanism, so that structural defects can be analyzed by detection personnel according to multiple data, the operation is convenient, sensitive and rapid, and large-area inspection of structures can be realized.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.

Claims

1. The utility model provides a over-and-under type infrared thermal imagery ultrasonic detector which characterized in that: including portable base, install atmospheric pressure elevating gear on the portable base and with the portable light-duty workstation that atmospheric pressure elevating gear connects, portable light-duty workstation including rotate connect in atmospheric pressure elevating gear's workstation plastic housing and install scalable ultrasonic probe and infrared thermal image collector on the workstation plastic housing, scalable ultrasonic probe dorsad workstation plastic housing's one end is provided with pressure sensor just pressure sensor passes through the same baffle of spring and connects.

2. The elevating infrared thermographic ultrasonic inspection instrument of claim 1, wherein: atmospheric pressure elevating gear includes and installs through the circle tray housing on the portable base, install telescopic cylinder on the housing and setting are in telescopic joint on the telescopic cylinder, be provided with chargeable lithium cell, wireless transceiver and atmospheric pressure motor in the housing, chargeable lithium cell does wireless transceiver with the atmospheric pressure motor power supply, wireless transceiver with the atmospheric pressure motor communication is connected, the atmospheric pressure motor drive telescopic cylinder work is in order to drive telescopic joint makes elevating movement.

3. The elevating infrared thermographic ultrasonic inspection instrument of claim 2, wherein: workstation plastic housing through rotary platform and bottom connection base rotate connect in the telescopic joint, wherein, rotary platform rotate connect in bottom connection base, rotary platform with workstation plastic housing bottom connection base with be fixed connection between the telescopic joint.

4. The elevating infrared thermographic ultrasonic inspection instrument of claim 3, wherein: the air pressure lifting device, the rotating platform, the telescopic ultrasonic probe and the thermal infrared image collector are all in communication connection with the central control console.

5. The elevating infrared thermographic ultrasonic inspection instrument of claim 1, wherein: the movable base is composed of a tripod and universal wheels arranged at the bottom of the tripod.