Sensor support device and system for ultrasonic detection of concrete filled steel tube

Abstract

The invention discloses a sensor support device and system for concrete filled steel tube ultrasonic detection. The sensor support device comprises a grip, a pressing plate and an adsorption mechanism. The lower end of the grip is connected with the pressing plate, and an ultrasonic detection sensor is installed in the center of the bottom face of the pressing plate. At least three groups of adsorption mechanisms are designed, and are uniformly arranged at intervals along the periphery of the ultrasonic detection sensor in the circumferential direction; each adsorption mechanism is provided with a magnet block used for being adsorbed to the outer wall of the steel pipe. The invention also discloses a concrete filled steel tube ultrasonic detection system. The device has the beneficial effects that the magnet block of the adsorption mechanism and the outer wall of the steel pipe can generate stable magnetic attraction acting force, the magnetic force can directly offset part of gravity load of the detection device, detection personnel only need to hold the grip to guide the direction, no extra supporting force is needed, and the device can be preliminarily attached to the surface of the steel pipe; the basic bearing burden of the hand is greatly reduced, and the problem that in the prior art, the labor intensity of workers is large is solved.

Description

Technical Field

[0001] This invention relates to the field of steel pipe concrete testing technology, specifically to a sensor support device and system for ultrasonic testing of steel pipe concrete. Background Technology

[0002] Currently, in the field of steel-concrete composite testing, existing ultrasonic testing technologies generally rely on handheld testing equipment. This traditional testing method suffers from drawbacks such as high labor intensity, low operating efficiency, and poor reliability of fixed positioning, severely restricting the improvement of testing quality and efficiency. Specific shortcomings are as follows: First, the high labor intensity and low operational efficiency affect the accuracy of the test. Workers must hold the excitation device and sensor throughout the entire process, maintaining a stable posture and precise positioning of the equipment. Prolonged arm-suspended operation easily leads to muscle fatigue and joint pain, especially in large-area, multi-point testing scenarios, resulting in significant physical exertion. This not only reduces testing efficiency but also increases the likelihood of operational errors. Simultaneously, physiological limitations (such as arm tremors and distraction) directly affect the contact stability between the sensor and the steel pipe surface, causing unstable ultrasonic signal transmission, fluctuations and errors in the test data, and ultimately affecting the accuracy and reliability of the test results.

[0003] Secondly, the reliability of fixed positioning is poor. When a suspected defect area or a location requiring focused inspection is detected, the existing handheld method cannot reliably fix the detector in the target position for continuous monitoring and data acquisition, relying solely on manual handheld operation to maintain stability. This not only increases the workload of operators but, more importantly, makes it difficult to guarantee a constant contact pressure and angle between the detector and the surface being inspected, affecting the quality of ultrasonic wave propagation and reception. Furthermore, operators cannot establish reliable detection benchmarks and control standards at the same location; this uncertainty affects the reproducibility of the detection data and reduces the reliability of the results.

[0004] Therefore, it is necessary to improve existing technologies. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sensor support device for ultrasonic testing of steel pipe concrete, aiming to solve the problem of high labor intensity for workers in existing technologies.

[0006] The technical solution adopted in this invention is: a sensor support device for ultrasonic testing of steel pipe concrete, comprising a handle, a pressure plate and an adsorption mechanism; The lower end of the grip is connected to the pressure plate, and an ultrasonic detection sensor is installed at the center of the bottom surface of the pressure plate; the adsorption mechanism is designed with at least three sets, and is evenly spaced along the outer periphery of the ultrasonic detection sensor. Each of the aforementioned adsorption mechanisms is equipped with a magnet for adsorbing onto the outer wall of the steel pipe.

[0007] According to the above scheme, the sensor support device for ultrasonic testing of steel pipe concrete further includes several sets of clamping mechanisms evenly spaced along the outer periphery of the ultrasonic testing sensor, and the clamping mechanisms are arranged crosswise with the adsorption mechanisms.

[0008] According to the above scheme, each set of clamping mechanisms includes a vertical rod, a horizontal plate, and a rolling ball; There are two vertical rods, which are fixed parallel to each other on the lower surface of the pressure plate; The two ends of the horizontal plate are respectively movably sleeved on the two vertical rods; A ring is provided between the two vertical rods below the horizontal plate. A ball seat is embedded in the inner cavity of the ring. The outer wall of the ball seat is connected to the inner wall of the ring by a ring spring. The ball seat has the ball groove, and the rolling ball is installed in the ball groove; The upper end of the ball is connected to the cross plate via a short rod; The clamping mechanism also includes a compression spring, the upper end of which is connected to the lower surface of the pressure plate, and the lower end of which is connected to the cross plate.

[0009] According to the above scheme, the upper end of the ultrasonic detection sensor is mounted on the lower part of the pressure plate by means of a spring and a slide bar.

[0010] According to the above scheme, there are four sets of adsorption mechanisms, and the magnets of each adsorption mechanism are respectively connected to the four connecting ends of the connecting rod passing through the pressure plate and the cross.

[0011] According to the above scheme, the sensor support device for ultrasonic testing of steel pipe concrete is further provided with an adjustment component. The lower end of the adjustment component extends out of the handle and is connected to the cross; the adjustment component drives the cross to move along the handle axis.

[0012] According to the above scheme, the adjustment assembly includes a rotating plate, a chain assembly, a circular sleeve, an eccentric mechanism, and a connecting rod; The rotating plate is connected to an elliptical plate, and the outer periphery of the elliptical plate is adapted to the inner ring of the chain assembly. The circular sleeve is installed on the upper end of the grip, and a slot is provided inside the circular sleeve to fit the outer ring of the chain assembly; A flexible rod is fixedly connected to the lower end of the chain assembly; The eccentric mechanism is installed inside the grip. The input end of the eccentric mechanism is connected to the lower end of the flexible rod, and the output end of the eccentric mechanism is connected to the upper end of the connecting rod. The lower end of the connecting rod extends out of the grip and is connected to the cross.

[0013] According to the above scheme, the eccentric mechanism includes a rotating ring, a fixed block, and an eccentric rod; The rotating ring is circumferentially rotatably connected to the lower inner part of the sleeve. The fixed block is fixedly connected to the rotating ring. The upper end of the eccentric rod is connected to the bottom of the fixed block. The lower end of the eccentric rod extends into the handle and is connected to the upper end of the connecting rod. The lower end of the connecting rod passes through the bottom of the handle and is connected to the center of the cross.

[0014] According to the above scheme, the grip is a segmented structure, including a lower cylindrical segment and an upper transition segment connected to the circular sleeve; the axis of the circular sleeve is not collinear with the axis of the cylindrical segment, the upper end of the connecting rod is located inside the cylindrical segment and reciprocates along the axial direction of the cylindrical segment; the lower end of the eccentric rod passes through the transition segment of the grip and is connected to the connecting rod inside the cylindrical segment.

[0015] The present invention also employs a sensor system for ultrasonic testing of steel-concrete composite pipes, including a sensor support device for ultrasonic testing of steel-concrete composite pipes as described above.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention designs an adsorption mechanism in which the magnetic block of the adsorption mechanism can generate a stable magnetic attraction force with the outer wall of the steel pipe. This magnetic force can directly offset part of the gravity load of the detection device, replacing the load-bearing function of the artificial arm in the traditional solution. The detection personnel only need to hold the handle for directional guidance, without applying additional support force, so that the device can initially fit against the surface of the steel pipe, greatly reducing the basic load-bearing burden on the hand and solving the problem of high labor intensity of the workers in the prior art.

[0017] 2. The present invention designs a clamping mechanism that works in conjunction with an adsorption mechanism. When the ultrasonic detection sensor approaches the surface of the steel pipe, the gradual increase in magnetic force triggers the elastic deformation of the ring spring, generating a counterforce that balances the magnetic force. This mechanical balance mechanism ensures that the detection device can stably adhere to the surface of the steel pipe. The operator only needs to provide a small supporting force to maintain the stability of the device. The point contact design between the rolling ball and the pipe surface enables flexible movement and positioning of the detector. The spherical contact method reduces movement resistance, allowing the operator to easily perform continuous detection along the pipe surface. At the same time, the rotational characteristics of the rolling ball ensure that the detector always maintains a suitable contact angle and pressure distribution with the pipe surface. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0019] Figure 2 This is a schematic diagram of the structure of the transfer plate and pressure plate in Example 1.

[0020] Figure 3 This is a schematic diagram of the ultrasonic detection sensor and magnet block in Example 1.

[0021] Figure 4 As in Example 1 Figure 2 A cross-sectional structural diagram.

[0022] Figure 5 This is a schematic diagram of the structure of the ring and the tube in Example 1.

[0023] Figure 6 This is a schematic diagram of the cross and magnet block in Example 1.

[0024] Figure 7 This is a cross-sectional view of the rotating plate and handle in Example 1.

[0025] Figure 8 This is a schematic diagram of the chain and the circular sleeve in Example 1.

[0026] Figure 9 As in Example 1 Figure 8 A schematic diagram of the explosion structure.

[0027] In the diagram: 11. Pipe; 21. Pressure plate; 22. Connecting rod; 23. Handle; 24. Vertical rod; 25. Ring; 26. First sliding sleeve; 27. Second sliding sleeve; 28. Horizontal plate; 29. ​​Compression spring; 31. Circular sleeve; 32. Slot; 33. Rotary ring; 34. Hexagonal block; 35. Washer; 36. Eccentric rod; 37. Chain assembly; 38. Flexible rod; 39. Elliptical plate; 210. Ring spring; 211. Ball seat; 212. Support rod; 213. Ball groove; 214. Rolling ball; 215. Friction sleeve; 216. Sliding rod; 217. Detector; 218. Spring; 219. Cross; 220. Connecting rod; 221. Magnet block; 310. Rotating plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, without contradiction. Additionally, the term "a plurality of" indicates two or more.

[0033] like Figure 1The invention relates to a sensor support device and system for ultrasonic testing of steel-concrete composite structures, which is used to achieve stable positioning of ultrasonic testing sensor 217 on the surface of steel-concrete composite components; the sensor support device for ultrasonic testing of steel-concrete composite structures includes a handle 23, a pressure plate 21, and an adsorption mechanism. The lower end of the grip 23 is connected to the pressure plate 21, and an ultrasonic detection sensor 217 is installed at the center of the bottom surface of the pressure plate 21; the adsorption mechanism is designed with at least three sets, which are evenly spaced along the outer periphery of the ultrasonic detection sensor 217. Each adsorption mechanism is equipped with a magnet 221 that can be adsorbed onto the outer wall of the steel pipe 11.

[0034] In this invention, the handle 23 is a component for the operator to hold and apply force; the pressure plate 21 is a rigid load-bearing component; the number of adsorption mechanisms is at least three sets, and all adsorption mechanisms, through the adsorption force of the magnet block 221, enable the pressure plate 21 to drive the ultrasonic detection sensor 217 to fit tightly against the surface of the steel pipe 11.

[0035] Preferably, the sensor support device for ultrasonic testing of steel pipe concrete further includes several sets of clamping mechanisms evenly spaced along the outer periphery of the ultrasonic testing sensor 217, wherein the clamping mechanisms and the adsorption mechanisms are arranged in a cross manner.

[0036] In this invention, there are four sets of clamping mechanisms.

[0037] Preferably, each clamping mechanism includes a vertical rod 24, a horizontal plate 28, and a ball bearing 214; There are two vertical rods 24, which are fixed parallel to each other on the lower surface of the pressure plate 21; The two ends of the horizontal plate 28 are movably sleeved on the two vertical rods 24 through the first sliding sleeve 26 and the second sliding sleeve 27 respectively, and the horizontal plate 28 can move along the axial direction of the two vertical rods 24. A ring 25 is provided between the two vertical rods 24 below the horizontal plate 28. A ball seat 211 is embedded in the inner ring cavity of the ring 25. The outer wall of the ball seat 211 is connected to the inner wall of the ring 25 by a ring spring 210. The ball seat 211 has a ball groove 213, the ball 214 is installed in the ball groove 213, and the lower end of the ball 214 can protrude from the bottom end face of the ball groove 213 and fit in contact with the outer wall of the steel pipe 11. The ball 214 is rotatably connected inside the ball seat 211. A friction sleeve 215 is installed at the lower end of the horizontal plate 28, and a ring 25 is attached to the ball 214. The rolling resistance of the ball 214 is changed by the magnitude of the pressure between the ball 214 and the friction sleeve 215, thereby achieving the effect of partially resisting gravity.

[0038] Preferably, the clamping mechanism further includes a compression spring 29, the upper end of which is connected to the lower surface of the pressure plate 21, and the lower end of which is connected to the cross plate 28.

[0039] In this invention, the compression spring 29 is arranged between the two vertical rods 24 in a naturally extended state, and can provide elastic preload to the ball 214 through the horizontal plate 28; multiple support rods 212 are arranged circumferentially on the lower end face of the ring 25.

[0040] Preferably, the upper end of the ball 214 is connected to the lower end of the short rod through a friction sleeve 215. The friction sleeve 215 enables flexible force transmission and damping limit between the ball 214 and the short rod.

[0041] In this invention, the working principle of the clamping mechanism is as follows: When the sensor bracket device for ultrasonic testing of steel pipe concrete is attached to the outer wall of the steel pipe 11, the pressure plate 21 moves down with the handle 23. The two vertical rods 24, which are parallel and fixed to the lower surface of the pressure plate 21, drive the horizontal plate 28 to move closer to the outer wall of the steel pipe 11. The rolling ball 214 below the horizontal plate 28 first contacts the outer wall of the steel pipe 11. Since the rolling ball 214 is connected to the horizontal plate 28 through the short rod, and the rolling ball 214 is embedded in the ball groove 213, and the outer wall of the ball seat 211 of the ball groove 213 is connected to the ring 25 through the annular spring 210, when the rolling ball 214 contacts the curved outer wall of the steel pipe 11, the ball seat 211 deforms elastically with the help of the annular spring 210. The ball 214 is driven to deflect adaptively along the curved surface of the steel pipe 11, ensuring that the ball 214 always keeps in close contact with the outer wall of the steel pipe 11. At the same time, the compression spring 29 connected between the lower surface of the pressure plate 21 and the horizontal plate 28 is compressed and deformed as the horizontal plate 28 moves downward. The elastic restoring force of the compression spring 29 will continuously apply a downward preload to the horizontal plate 28, and transmit it to the ball 214 through the short rod, so that the ball 214 is stably abutted against the outer wall of the steel pipe 11 to assist in the positioning of the adsorption mechanism. It can also provide a balanced downward pressure to the pressure plate 21 through the combined action of the horizontal plate 28 and the vertical rod 24, thereby pushing the ultrasonic detection sensor 217 at the bottom center of the pressure plate 21 to fit tightly against the outer wall of the steel pipe 11.

[0042] Preferably, the upper end of the ultrasonic detection sensor 217 is mounted on the lower part of the pressure plate 21 via a spring 218 and a slide rod 216. The lower end of the ultrasonic detection sensor 217 is the detection end, which can contact the outer wall of the steel pipe 11. Specifically, the lower end of the spring 218 is connected to the upper end of the ultrasonic detection sensor 217, and the upper end of the spring 218 is connected to the lower surface of the pressure plate 21. The pressure plate 21 has a sliding groove adapted to the slide rod 216, and the slide rod 216 can move vertically within the sliding groove to cooperate with the movement of the ultrasonic detection sensor 217.

[0043] In this invention, the slide rod 216 is provided with a limiting protrusion to ensure that the slide rod 216 does not detach from the slide groove.

[0044] Preferably, the adsorption mechanism has four sets, and the magnet block 221 of each adsorption mechanism is connected to the four connecting ends of the cross 219 through the connecting rod 220 that passes through the pressure plate 21.

[0045] In this invention, the sensor support device for ultrasonic testing of steel pipe concrete is further provided with an adjustment component. The lower end of the adjustment component extends out of the handle 23 and is connected to the cross 219. The adjustment component can drive the cross 219 to move axially along the handle 23, thereby changing the distance between the adsorption mechanism at the connection end of the cross 219 and the pressure plate 21.

[0046] Preferably, the adjustment assembly includes a rotating plate 310, a chain assembly 37, a circular sleeve 31, an eccentric mechanism, and a connecting rod 22; An elliptical plate 39 is connected to the bottom of the rotating plate 310 via a short post, and the outer periphery of the elliptical plate 39 is adapted to the inner ring of the chain assembly 37. The circular sleeve 31 is installed on the upper end of the handle 23, and a slot 32 adapted to the outer ring of the chain assembly 37 is provided inside the circular sleeve 31. A flexible rod 38 is fixedly connected to the lower end of the chain assembly 37; The eccentric mechanism is installed inside the grip 23. The input end of the eccentric mechanism is connected to the lower end of the flexible rod 38, and the output end of the eccentric mechanism is connected to the upper end of the connecting rod 22. The lower end of the connecting rod 22 extends out of the grip 23 and is connected to the cross 219.

[0047] In this invention, the chain assembly 37 is a double-layer annular chain structure, comprising upper and lower annular chain belts formed by sequentially hinged multiple chains, and the upper and lower chain belts are hinged and linked by a vertical pin; the inner ring of the chain assembly 37 is adapted to the outer periphery of the elliptical plate 39, and the outer ring of the chain assembly 37 is adapted to the slot 32 in the circular sleeve 31; two flexible rods 38 are also fixedly connected to the bottom of the chain assembly 37 for transmitting circumferential driving force.

[0048] In this invention, the circular sleeve 31 is fixed to the upper end of the handle 23, and the chain assembly 37 can move circumferentially within the slot 32 of the circular sleeve 31. The number of slots in the slot 32 is greater than the number of chains. When the rotating plate 310 rotates, it drives the elliptical plate 39 to rotate through the short column, which in turn drives the chain assembly 37, which is adapted to the outer periphery of the elliptical plate 39, to rotate within the slot 32. Because the number of chains is less than the number of slots 32, as the elliptical plate 39 rotates, the chains move one slot at a time within the slot 32, achieving a deceleration effect. The flexible rod 38 connected to the bottom of the chain assembly 37 rotates accordingly, and the flexible rod 38 deforms.

[0049] Preferably, the eccentric mechanism includes a rotating ring 33, a fixed block 34, and an eccentric rod 36; The rotating ring 33 is circumferentially rotatably connected to the lower inner part of the sleeve 31 (it can rotate circumferentially relative to the sleeve 31). The fixed block 34 is rotatably connected to the rotating ring 33. The upper end of the eccentric rod 36 is connected to the bottom of the fixed block 34. The lower end of the eccentric rod 36 extends into the handle 23 and is connected to the upper end of the connecting rod 22. The lower end of the connecting rod 22 passes through the bottom of the handle 23 and is connected to the center of the cross 219, which can convert the power of the eccentric mechanism into the axial displacement of the cross 219.

[0050] In this invention, a pad 35 is fixed to the bottom of the fixing block 34, and the upper end of the eccentric rod 36 is hinged to the pad 35, with the hinge point located at the edge of the pad 35.

[0051] In this invention, the grip 23 has a segmented structure, including a lower cylindrical segment and an upper transition segment connected to the sleeve 31; the axis of the sleeve 31 is not collinear with the axis of the cylindrical segment; the upper end of the connecting rod 22 is located inside the cylindrical segment of the grip 23 and can reciprocate along the axial direction of the cylindrical segment; the upper end of the eccentric rod 36 is connected to the fixing block 34 located at the lower end of the sleeve 31 (specifically hinged to the washer 35); the lower end of the eccentric rod 36 passes through the transition segment of the grip 23 and is connected to the connecting rod 22 inside the cylindrical segment.

[0052] In this invention, the cylindrical segments of the sleeve 31 and the handle 23 are not collinear, causing the connecting rod 22 to undergo axial displacement when the upper end of the eccentric rod 36 moves circumferentially. When the upper end of the eccentric rod 36 rotates circumferentially with the fixed block 34, the circumferential movement of the eccentric rod 36 will cause a radial displacement along the handle 23 due to the offset between the sleeve 31 and the cylindrical segment. This offset is converted into a linear driving force along the axial direction of the cylindrical segment of the handle 23 by the hinge node between the eccentric rod 36 and the connecting rod 22, thereby causing the cross 219 and the adsorption mechanism connected to the lower end of the connecting rod 22 to undergo axial displacement.

[0053] In this invention, the adjustment component drives the cross 219 to move axially along the handle 23 through multi-stage transmission and deceleration, thereby adjusting the relative distance between the adsorption mechanisms connected to the cross 219 and the pressure plate 21. The specific working principle is as follows: When the rotating plate 310 is rotated, the rotating plate 310 drives the elliptical plate 39 to rotate synchronously through the short column. Since the outer circumference of the elliptical plate 39 is adapted to the inner ring of the chain assembly 37, the rotation of the elliptical plate 39 pushes the chain assembly 37 to move circumferentially within the slot 32 of the sleeve 31. Since the number of slots in the slot 32 is greater than the number of chains, the chain assembly 37 will form an intermittent circumferential movement within the slot 32, realizing transmission deceleration. When the chain assembly 37 moves circumferentially, the two flexible rods 38 fixed to its bottom will move with the chain assembly. The chain 37 rotates synchronously and deforms to compensate for the transmission deviation between the chain 37 and the swivel 33, while transmitting the circumferential driving force to the swivel 33. The swivel 33 rotates synchronously and causes the fixing block 34 and the washer 35 to generate circumferential displacement, driving the eccentric rod 36 to perform eccentric circular motion. The motion of the eccentric rod 36 is converted into an axial driving force on the connecting rod 22 through the hinge point, pushing the connecting rod 22 to drive the cross 219 to move axially along the handle 23, thereby changing the relative distance between each adsorption mechanism and the pressure plate 21.

[0054] Example 1 like Figures 1-9 A sensor support device for ultrasonic testing of steel pipe concrete includes a pressure plate 22, a handle 23, and a clamping mechanism. A connecting rod 22 is provided on the upper end face of the pressure plate 21, and the handle 23 is slidably connected to the upper end of the connecting rod 22. Four sets of clamping mechanisms are provided at the four corners of the lower end face of the pressure plate 21. Each clamping mechanism includes two sets of vertical rods 24, and a ring 25 is fixedly connected to the lower end face of the two sets of vertical rods 24. A first sliding sleeve 26 and a second sliding sleeve 27 are slidably connected to the two sets of vertical rods 24. A horizontal plate 28 is connected between 27. A compression spring 29 is connected to the upper end of the horizontal plate 28. The upper end of the compression spring 29 is fixedly connected to the lower end of the pressure plate 21. The inner ring of the ring 25 is connected to a ball seat 211 through a ring spring 210. Multiple sets of support rods 212 are provided on the lower end of the ring 25. A ball groove 213 is opened in the ball seat 211. A rolling ball 214 is rotatably connected in the ball groove 213. A short rod is provided on the lower end of the horizontal plate 28. A friction sleeve 215 is provided at the lower end of the short rod. The friction sleeve 215 abuts against the upper surface of the rolling ball 214. Two sets of sliding rods 216 are slidably connected to the center of the pressure plate 21. An ultrasonic detection sensor 217 is connected to the lower end of the sliding rod 216. A spring 218 is provided on the upper end of the ultrasonic detection sensor 217. The other end of the spring 218 is fixedly connected to the lower end of the pressure plate 21. A cross 219 is provided on the outside of the connecting rod 22. The cross 219 is fixedly connected to the lower end of the handle 23. Four sets of connecting rods 220 are provided at the four connecting ends of the cross 219. The other end of the connecting rod 220 passes through the pressure plate and is connected to the magnet block 221. The connecting rod 220 is slidably connected to the pressure plate 21. In the adjustment assembly, an elliptical plate 39 is connected to the lower part of the rotating plate 310 via a short column. The outer periphery of the elliptical plate 39 is adapted to the inner ring of the chain assembly 37. The lower end face of the circular sleeve 31 is fixedly connected to the upper end face of the handle 23. The upper end face of the circular sleeve 31 has multiple sets of slots 32, which cooperate with the outer ring of the chain assembly 37. The lower end face of the chain assembly 37 is provided with two sets of flexible rods 38, and the lower end of the flexible rods 38 is fixedly connected to the upper end face of the rotating ring 33. The rotating ring 33 is located inside the lower end of the circular sleeve 31. A fixing block 34 is slidably connected inside the rotating ring 33. The fixing block 34 is a hexagonal block, and a washer 35 is fixedly connected to its lower end face. The washer 35 can rotate relative to the handle 23. An eccentric rod 36 is hingedly connected to the lower end face of the washer 35, and the lower end of the eccentric rod 36 is hingedly connected to the upper end of the connecting rod 22.

[0055] The ultrasonic testing support device for steel-concrete composite pipes described in this embodiment achieves stable contact of the ultrasonic sensor and labor-saving testing operation through the synergistic effect of magnetic positioning by the adsorption mechanism, elastic pre-tightening by the clamping mechanism, and regulation by the adjusting component. The specific working principle is as follows: 1. Preliminary Positioning: When the worker holds the aforementioned sensor bracket device for ultrasonic testing of concrete in steel pipe 11 to perform ultrasonic testing on the concrete inside the steel pipe 11, the magnet block 221 of the adsorption mechanism is magnetically adsorbed onto the outer wall of the steel pipe 11 for preliminary positioning, reducing the labor intensity of the worker holding the device. The staff brings the sensor bracket device for ultrasonic testing of steel pipe concrete close to the surface of the steel pipe 11. The magnet 221 first generates a magnetic force with the steel pipe 11 and gradually attracts it until the rolling ball 214 of the pressing mechanism abuts against the outer surface of the steel pipe 11. During this process, the magnetic force of the magnet 221 is an active attraction force, and the annular spring 210 undergoes adaptive deformation to generate elastic force to balance the magnetic force. The pressure plate 11 continues to move down, and the pressure plate 21 drives multiple sets of vertical rods 24 to move down synchronously. The vertical rods 24 push the ring 25 closer to the steel pipe 11. Since the rolling ball 214 has abutted against the steel pipe 11 and cannot move down further, the downward movement of the ring 25 will cause the annular spring 210 to deform further until its elastic force is completely balanced with the magnetic force of the magnet 221. When the ball 214 is stationary, the friction sleeve 215, the horizontal plate 28, and the first sliding sleeve 26 and the second sliding sleeve 27 on both sides connected to it cannot move down with the vertical rod 24, which causes the compression spring 29 between the pressure plate 21 and the horizontal plate 28 to be compressed. The compression restoring force of the compression spring 29 is transmitted to the friction sleeve 215 through the horizontal plate 28, increasing the abutting friction between the friction sleeve 215 and the ball 214. This friction force simultaneously amplifies the contact friction between the ball 214 and the surface of the steel pipe 11, which can offset part of the weight of the device and reduce the amount of force required for the operator to hold it.

[0056] 2. Mobile Detection: When the operator holds the aforementioned ultrasonic testing sensor bracket device for steel pipe concrete to perform mobile detection on the surface of the steel pipe 11, the adsorption force and friction force are adjusted by rotating the rotating plate 310 to ensure stable contact of the ultrasonic testing sensor and effortless operation during the movement process. The operator holds handle 23 and rotates rotating plate 310. Rotating plate 310 drives the lower elliptical plate 39 to rotate synchronously via short column. Elliptical plate 39 meshes with the inner ring of chain assembly 37, driving chain assembly 37 to move circumferentially along the groove 32 on the inner wall of sleeve 31, achieving transmission deceleration. Flexible rod 38 at the lower end of chain assembly 37 rotates synchronously with chain assembly 37 and produces adaptive deformation (the deformation of flexible rod 38 can compensate for the transmission deviation between chain assembly and swivel 33), thereby driving swivel 33 to rotate circumferentially, thus driving eccentric rod 36 to perform eccentric circular motion through fixed block 34. The eccentric motion of eccentric rod 36 is converted into axial driving force through hinge point, which drives cross 219 to descend / rise synchronously through connecting rod 22, and magnet block 221 to move down / rise synchronously, thereby adjusting its relationship with pressure. The relative position of plate 21 also changes the distance between magnet block 221 and the surface of steel pipe 11. When the distance between magnet block 221 and steel pipe 11 decreases, the magnetic force is significantly enhanced. In order to achieve a new force balance, pressure plate 21 will move down and push vertical rod 24 and ring 25 closer to steel pipe 11. The position of ball 214 remains unchanged. The downward movement of ring 25 will cause the ring spring 210 to produce greater deformation to balance the enhanced magnetic force. At the same time, compression spring 29 is further compressed. Its restoring force pushes the horizontal plate 28 to increase the pressure on friction sleeve 215, which ultimately increases the contact friction between ball 214 and steel pipe 11 again, offsetting more of the device's weight. According to the actual testing needs, the staff can adjust the device to the most labor-saving moving testing state to ensure that detector 217 stably collects ultrasonic data.

[0057] 3. Fixed-point detection: When the operator needs to fix the sensor bracket device for ultrasonic testing of steel pipe concrete onto the surface of the steel pipe 11 for fixed-point detection, the rotating plate 310 can be rotated to complete the locking and positioning of the device. The rotating plate 310 continues to rotate, and the adjusting component drives the cross 219 to push the magnet 221 further down via the connecting rod 220, so that the distance between the magnet 221 and the surface of the steel pipe 11 continues to decrease, and the magnetic force increases significantly. The pressure plate 21 continues to move down as the magnetic force increases, pushing the vertical rod 24 to move the ring 25 closer to the steel pipe 11 until the support rod 212 below the ring 25 abuts against the surface of the steel pipe 11. At this time, the rotating plate 310 continues to rotate, and the magnetic force of the magnet 221, the deformation of the ring spring 210, and the compression of the compression spring 29 increase simultaneously. The contact friction between the ball 214 and the steel pipe 11 and the pressing friction between the support rod 212 and the steel pipe 11 also increase accordingly. When the combined friction between the support rod 212 and the ball 214 is sufficient to completely overcome the weight of the device, the device can be stably fixed on the surface of the steel pipe 11, and the fixed-point ultrasonic detection of the detector 217 can be achieved without the need for personnel to hold it.

[0058] Example 2 A sensor system for ultrasonic testing of steel-concrete composite pipes includes a sensor support device for ultrasonic testing of steel-concrete composite pipes as described above.

[0059] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. They will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be elaborated upon in this invention. Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, so their electrical connection relationships and specific circuit structures will not be elaborated here.

[0060] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0061] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sensor support device for ultrasonic testing of steel-concrete composite pipes, characterized in that, Includes a grip, pressure plate, and suction mechanism; The lower end of the grip is connected to the pressure plate, and an ultrasonic detection sensor is installed at the center of the bottom surface of the pressure plate; the adsorption mechanism is designed with at least three sets, and is evenly spaced along the outer periphery of the ultrasonic detection sensor. Each of the aforementioned adsorption mechanisms is equipped with a magnet for adsorbing onto the outer wall of the steel pipe.

2. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 1, characterized in that, The sensor support device for ultrasonic testing of steel pipe concrete further includes several sets of clamping mechanisms evenly spaced along the outer periphery of the ultrasonic testing sensor, and the clamping mechanisms are arranged intersecting with the adsorption mechanisms.

3. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 2, characterized in that, Each set of clamping mechanisms includes a vertical rod, a horizontal plate, and a rolling ball; There are two vertical rods, which are fixed parallel to each other on the lower surface of the pressure plate; The two ends of the horizontal plate are respectively movably sleeved on the two vertical rods; A ring is provided between the two vertical rods below the horizontal plate. A ball seat is embedded in the inner cavity of the ring. The outer wall of the ball seat is connected to the inner wall of the ring by a ring spring. The ball seat has the ball groove, and the rolling ball is installed in the ball groove; The upper end of the ball is connected to the cross plate via a short rod; The clamping mechanism also includes a compression spring, the upper end of which is connected to the lower surface of the pressure plate, and the lower end of which is connected to the cross plate.

4. A sensor support device for ultrasonic testing of steel-concrete composite pipes as described in any one of claims 1 to 3, characterized in that, The upper end of the ultrasonic detection sensor is mounted on the lower part of the pressure plate via a spring and a slide bar.

5. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 4, characterized in that, The adsorption mechanism has four sets, and the magnet of each adsorption mechanism is connected to the four connecting ends of the cross through the connecting rod passing through the pressure plate.

6. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 5, characterized in that, The sensor support device for ultrasonic testing of steel pipe concrete is further provided with an adjustment component. The lower end of the adjustment component extends out of the handle and is connected to the cross; the adjustment component drives the cross to move along the handle axis.

7. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 6, characterized in that, The adjustment assembly includes a rotating plate, a chain assembly, a circular sleeve, an eccentric mechanism, and a connecting rod; The rotating plate is connected to an elliptical plate, and the outer periphery of the elliptical plate is adapted to the inner ring of the chain assembly. The circular sleeve is installed on the upper end of the grip, and a slot is provided inside the circular sleeve to fit the outer ring of the chain assembly; A flexible rod is fixedly connected to the lower end of the chain assembly; The eccentric mechanism is installed inside the grip. The input end of the eccentric mechanism is connected to the lower end of the flexible rod, and the output end of the eccentric mechanism is connected to the upper end of the connecting rod. The lower end of the connecting rod extends out of the grip and is connected to the cross.

8. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 7, characterized in that, The eccentric mechanism includes a rotating ring, a fixed block, and an eccentric rod; The rotating ring is circumferentially rotatably connected to the lower inner part of the sleeve. The fixed block is fixedly connected to the rotating ring. The upper end of the eccentric rod is connected to the bottom of the fixed block. The lower end of the eccentric rod extends into the handle and is connected to the upper end of the connecting rod. The lower end of the connecting rod passes through the bottom of the handle and is connected to the center of the cross.

9. The sensor support device for ultrasonic testing of steel-concrete composite pipes as described in claim 8, characterized in that, The grip has a segmented structure, including a lower cylindrical segment and an upper transition segment connected to the sleeve; the axis of the sleeve is not collinear with the axis of the cylindrical segment, the upper end of the connecting rod is located inside the cylindrical segment and reciprocates along the axial direction of the cylindrical segment; the lower end of the eccentric rod passes through the transition segment of the grip and is connected to the connecting rod inside the cylindrical segment.

10. A sensor system for ultrasonic testing of steel-concrete composite pipes, characterized in that, Includes a sensor support device for ultrasonic testing of steel-concrete composite pipes as described in any one of claims 1 to 9.

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