A device for detecting concrete defects on the top of a concrete component

Abstract

This application relates to a device for detecting concrete defects on the top of concrete components, belonging to the field of building engineering testing technology, and includes an electric actuator. This application solves the problem of inconvenience in high-altitude testing by setting up an electric actuator and a control button. During testing, the operator can operate the control button on the electric actuator to transmit an electrical signal to the drive component of the electric actuator. The drive component causes the electric actuator to extend and retract, thereby adjusting the height of the sleeve, the lower movable rod, and the striking mechanism, eliminating the need for assembling multiple extended rods as in existing technologies. This process eliminates the time-consuming assembly, and the electric actuator's flexible extension and retraction can easily cover testing scenarios on the top of concrete components of varying heights. It saves preparation time and avoids the problems of inconvenient carrying and storage space occupation by extended rods, improving the convenience and efficiency of the testing operation. The accuracy of the detection is improved by setting up a striking mechanism, a pressure rod, a sensor body, and a spring.

Description

Technical Field

[0001] This application relates to the field of building engineering testing technology, and in particular to a device for detecting defects in the top of concrete components. Background Technology

[0002] In the field of building construction, reinforced concrete columns are the most basic and critical load-bearing components in engineering structures, and the construction quality of the top concrete plays a decisive role in the stability and durability of the entire structure. Currently, the top of concrete columns is generally constructed using a two-stage pouring process. However, in actual operation, due to factors such as incomplete cleaning of the base layer and improper treatment of the interface between the old and new concrete, problems such as weak adhesion between the old and new concrete are very likely to occur, leading to concrete defects such as hollow areas.

[0003] To address the aforementioned hollow defects, the industry currently relies primarily on manual tapping for detection, which involves two main methods: First, inspectors directly tap the surface of the concrete component with a short stick and judge the presence of hollows by listening to the differences in sound. This method is only suitable for low-height concrete components and is ineffective for high-height components. Second, for high-height concrete components, inspectors need to assemble multi-section sticks into extended sticks for tapping detection. Although this can cover high-height detection scenarios, the assembly process of extended sticks is time-consuming, and they take up a lot of space when stored, making them inconvenient to carry.

[0004] Furthermore, the manual tapping method relies entirely on the experience of the inspectors to judge the differences in sound, which is highly subjective. Different inspectors have different judgment standards, resulting in poor consistency of test results. At the same time, it is very easy to miss the detection due to insufficient experience or lack of concentration, which cannot guarantee the accuracy and reliability of the detection. It is difficult to meet the high-quality requirements of building engineering for the detection of defects on the top of concrete components. Therefore, a concrete defect detection device for the top of concrete components is proposed. Utility Model Content

[0005] The purpose of this application is to provide a concrete defect detection device for the top of concrete components, which solves the problem of inconvenience in high-altitude detection and improves the accuracy of detection.

[0006] This application provides a concrete defect detection device for the top of a concrete component, which adopts the following technical solution: It includes an electric push rod, the telescopic end of which is provided with a sleeve, the lower end of which has a groove, a movable rod slidably connected inside the groove, and a striking mechanism fixedly connected to the end of the movable rod away from the groove; a pressure rod is fixedly connected to the end of the movable rod slidably connected inside the groove, and a sensor body is provided inside the groove corresponding to the pressure rod; a spring is sleeved on the surface of the pressure rod and the sensor body, one end of the spring is fixedly connected to the side of the sensor body fixed inside the groove, and the other end of the spring is fixedly connected to the end of the movable rod slidably connected inside the groove. By adopting the above technical solution, the core detection structure of the device is constructed by setting up an electric push rod, a sleeve, a groove, a movable rod, a striking mechanism, a pressure rod, a sensor body, and a spring. During detection, the electric push rod can drive the sleeve and the components below to adjust the height, eliminating the need for manual assembly of the extension rod and solving the problem of inconvenience in high-altitude detection in existing technologies. The striking mechanism generates a reaction force upon contact with the concrete surface, pushing the movable rod to drive the pressure rod to compress the spring and trigger the sensor body. The spring can buffer the pressure transmission, making the signal received by the sensor body more stable, replacing manual sound judgment, reducing subjective errors, and improving detection accuracy. At the same time, the overall structure is compact, making it easy to operate and carry.

[0007] Preferably, the movable rod is slidably connected to sliders on both the left and right sides of one end of the groove, the groove is provided with a sliding groove that matches the slider, and the slider is slidably connected to the inside of the sliding groove.

[0008] By adopting the above technical solution, sliders are set on both sides of the end of the movable rod, and corresponding grooves are set in the groove. When the movable rod moves in the groove, the sliders slide along the grooves, which can accurately limit the movement direction of the movable rod and prevent the movable rod from deviating or shaking. This ensures that the striking mechanism always maintains perpendicular contact with the top surface of the concrete component, avoids the impact of striking angle deviation on the stability of the pressure signal, and further guarantees the smoothness of the testing process and the reliability of the test results.

[0009] Preferably, the electric push rod and the sleeve are detachably connected, and the detachable connection method is threaded connection or snap-fit ​​connection.

[0010] By adopting the above technical solution, and using a detachable connection between the electric actuator and the sleeve via threaded or snap-fit ​​connections, when either the electric actuator or the sleeve malfunctions or is damaged, or when it is necessary to replace the sleeve with a different specification according to testing requirements, both can be quickly separated for repair, replacement, or substitution without replacing the entire device. This reduces equipment maintenance costs, extends the overall service life of the device, and improves its versatility and flexibility.

[0011] Preferably, the striking mechanism includes a connecting seat and a striking head. One end of the connecting seat is detachably connected to the end of the movable rod away from the groove, and the other end is fixedly connected to the striking head.

[0012] By adopting the above technical solution, the striking mechanism is divided into a connecting seat and a striking head, with the connecting seat and the movable rod being detachably connected. When the striking head wears down or is damaged due to long-term striking, or when it needs to be replaced with a suitable striking head for concrete components of different hardness, the connecting seat and the movable rod can be directly separated to replace the striking head without disassembling the entire striking mechanism or the movable rod. This simplifies the replacement process, reduces replacement time, and lowers the cost of replacing consumables.

[0013] Preferably, the sensor body is a pressure sensor, and the sensor body is connected to an external signal processing device via a wire or wireless signal.

[0014] By adopting the above technical solution, and defining the sensor body as a pressure sensor, and connecting it to external signal processing equipment via wires or wireless signals, the sensor body can stably convert the collected pressure signals into electrical signals, which are then quickly transmitted to the external equipment. Wire connections ensure stable signal transmission and are less susceptible to interference, while wireless connections eliminate the constraints of wires, allowing for flexible operation by staff at different detection locations. Both connection methods adapt to different detection scenario requirements. Simultaneously, the external equipment's analysis of the electrical signals replaces manual judgment, further improving the objectivity and accuracy of the detection results.

[0015] Preferably, the outer wall of the sleeve is provided with anti-slip texture, which is a strip pattern or a grid pattern.

[0016] By adopting the above technical solution, and by setting strip-shaped or grid-like anti-slip textures on the outer wall of the sleeve, the anti-slip textures increase the friction between the hand and the outer wall of the sleeve when the operator holds the sleeve for testing operations. This effectively prevents the sleeve from slipping due to sweaty hands, uneven force, or the weight of the device itself. This avoids the risk of equipment damage or accidental injury caused by the device slipping, and improves the operational safety and stability during the testing process.

[0017] Preferably, the electric push rod is provided with a control button, which is electrically connected to the drive assembly of the electric push rod and is used to control the extension and retraction of the electric push rod.

[0018] By adopting the above technical solution, and by setting a control button electrically connected to the drive component on the electric actuator, operators can directly transmit electrical signals to the drive component by pressing the control button to control the extension and retraction of the electric actuator, without the need for additional control equipment. This simplifies the operation process of the electric actuator, allowing operators to conveniently adjust the height of the device with one or both hands without frequently adjusting their operating posture, improving the efficiency and convenience of height adjustment, and further optimizing the inspection operation experience.

[0019] Preferably, the striking head of the striking mechanism is made of a high-hardness material, which is an alloy material.

[0020] By adopting the above technical solution, and by using a high-hardness alloy material for the striking head of the striking mechanism, the high-hardness material can effectively resist the wear and impact of concrete during long-term contact with the surface of concrete components, preventing the striking head from deforming, cracking, or wearing out too quickly. This extends the service life of the striking head, reduces the frequency of replacement, lowers consumable costs, and ensures that the striking head maintains a stable striking force and shape over a long period, guaranteeing consistent testing results.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This new concrete defect detection device for the top of concrete components solves the problem of inconvenient high-altitude detection by setting up an electric push rod and a control button. During the detection, the operator can operate the control button on the electric push rod to transmit an electrical signal to the drive component of the electric push rod. The drive component drives the electric push rod to extend and retract, thereby adjusting the height of the sleeve and the lower movable rod and the striking mechanism. Unlike existing technologies, it does not require the assembly of multiple extended rods. This process requires no time-consuming assembly, and the flexible extension and retraction of the electric push rod can easily cover the inspection scenarios of concrete components of varying heights. It saves preparation time and avoids the inconvenience and storage space issues associated with extended rods, improving the convenience and efficiency of the inspection operation. By incorporating a striking mechanism, pressure rod, sensor body, and spring, the accuracy of the inspection is enhanced. When the striking head of the striking mechanism contacts the top surface of the concrete component, the component generates a reaction force on the striking head, driving the movable rod to move into the groove. Simultaneously, the movable rod pushes the pressure rod closer to the sensor body and compresses the spring. The elastic deformation of the spring buffers the pressure transmission process, making the pressure of the pressure rod on the sensor body more stable. The sensor body converts the pressure signal into an electrical signal and transmits it to external signal processing equipment. This process replaces the existing method of manually judging hollow areas by sound, avoiding the subjectivity of human experience and reducing missed detections due to inconsistent judgment standards or lack of concentration, significantly improving the consistency and accuracy of the inspection results. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the internal structure of the sleeve in this application; Figure 3 for Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a structural diagram of the connection between the movable rod and the connecting seat in this application; Figure 5 This is a schematic diagram of a partial cross-section of the casing in this application.

[0023] In the picture: 1. Electric push rod; 2. Sleeve; 3. Groove; 4. Movable rod; 5. Striking mechanism; 51. Connecting seat; 52. Striking head; 6. Pressure rod; 7. Sensor body; 8. Spring; 9. Slider; 10. Slide groove; 11. Anti-slip texture; 12. Control button. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A device for detecting concrete defects at the top of a concrete component, referring to... Figure 1 , Figure 2 and Figure 3 The device includes an electric push rod 1, with a sleeve 2 at the telescopic end of the electric push rod 1. A groove 3 is formed at the lower end of the sleeve 2. A movable rod 4 is slidably connected inside the groove 3. A striking mechanism 5 is fixedly connected to the end of the movable rod 4 away from the groove 3. A pressure rod 6 is fixedly connected to the end of the movable rod 4 slidably connected inside the groove 3. A sensor body 7 is set inside the groove 3 corresponding to the pressure rod 6. A spring 8 is sleeved on the surface of the pressure rod 6 and the sensor body 7. One end of the spring 8 is fixedly connected to the side of the sensor body 7 fixed inside the groove 3, and the other end of the spring 8 is fixedly connected to the end of the movable rod 4 slidably connected inside the groove 3. By setting up the electric push rod 1, sleeve 2, groove 3, movable rod 4, striking mechanism 5, pressure rod 6, sensor body 7 and spring 8, the core detection structure of the device is constructed. During testing, the electric push rod 1 can adjust the height of the sleeve 2 and the components below it, eliminating the need for manual assembly of the extension rod and solving the problem of inconvenience in high-altitude testing in existing technologies. The striking mechanism 5 generates a reaction force upon contact with the concrete surface, which pushes the movable rod 4 to drive the pressure rod 6 to compress the spring 8 and trigger the sensor body 7. The spring 8 can buffer the pressure transmission, making the signal received by the sensor body 7 more stable. This replaces manual sound judgment, reduces subjective errors, and improves testing accuracy. At the same time, the overall structure is compact, making it easy to operate and carry.

[0026] Reference Figure 1 , Figure 2 and Figure 3 The movable rod 4 is slidably connected to the left and right sides of one end of the groove 3, and sliders 9 are fixedly connected to each other. The groove 3 is provided with a sliding groove 10 that matches the sliders 9, and the sliders 9 are slidably connected to the inside of the sliding groove 10. The electric push rod 1 and the sleeve 2 are detachably connected, and the detachable connection method is threaded connection or snap-fit ​​connection. By setting sliders 9 on the left and right sides of the end of the movable rod 4 and correspondingly setting sliding grooves 10 in the groove 3, when the movable rod 4 moves in the groove 3, the sliders 9 slide along the sliding grooves 10, which can accurately limit the movement direction of the movable rod 4 and prevent the movable rod 4 from deviating or shaking. This ensures that the striking mechanism 5 always maintains perpendicular contact with the top surface of the concrete component, avoiding the impact of striking angle deviation on the stability of the pressure signal, and further guaranteeing the smoothness of the testing process and the reliability of the test results. By using a detachable connection between the electric push rod 1 and the sleeve 2 via threaded or snap-fit ​​connections, when either the electric push rod 1 or the sleeve 2 malfunctions or is damaged, or when it is necessary to replace the sleeve 2 with a different specification according to testing requirements, both can be quickly separated for repair, replacement, or substitution without replacing the entire device. This reduces equipment maintenance costs, extends the overall service life of the device, and improves its versatility and flexibility.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The striking mechanism 5 includes a connecting seat 51 and a striking head 52. One end of the connecting seat 51 is detachably connected to the end of the movable rod 4 away from the groove 3, and the other end is fixedly connected to the striking head 52. The sensor body 7 is a pressure sensor, and the sensor body 7 is connected to the external signal processing equipment via a wire or wireless signal. By disassembling the striking mechanism 5 into the connecting seat 51 and the striking head 52, and by detachably connecting the connecting seat 51 to the movable rod 4, when the striking head 52 is worn or damaged due to long-term striking, or when it is necessary to replace the striking head 52 with a suitable one for concrete components of different hardness, the connecting seat 51 and the movable rod 4 can be directly disassembled to replace the striking head 52 without disassembling the entire striking mechanism 5 or the movable rod 4. This simplifies the replacement operation process, reduces replacement time, and lowers the cost of replacing consumables. By limiting the sensor body 7 to a pressure sensor and connecting it to the external signal processing equipment via a wire or wireless signal, the sensor body 7 can stably convert the collected pressure signal into an electrical signal and then quickly transmit it to the external device. Wire connections ensure stable signal transmission and are less susceptible to interference, while wireless connections eliminate the constraints of wires, allowing staff to operate flexibly at different testing locations. Both connection methods are suitable for different testing scenarios. At the same time, external equipment analysis of electrical signals replaces manual judgment, further improving the objectivity and accuracy of testing results.

[0028] Reference Figure 1 , Figure 2 and Figure 5The outer wall of the sleeve 2 is provided with anti-slip texture 11, which is either a stripe pattern or a grid pattern. The electric push rod 1 is equipped with a control button 12, which is electrically connected to the drive assembly of the electric push rod 1 and is used to control the extension and retraction of the electric push rod 1. The striking head 52 of the striking mechanism 5 is made of a high-hardness alloy material. By providing the stripe or grid pattern anti-slip texture 11 on the outer wall of the sleeve 2, the anti-slip texture 11 increases the friction between the hand and the outer wall of the sleeve 2 when the operator holds the sleeve 2 for testing, effectively preventing the sleeve 2 from slipping due to sweaty hands, uneven force, or the weight of the device itself. This avoids the risk of equipment damage or accidental injury caused by the device slipping, and improves the operational safety and stability during the testing process. By providing the control button 12 on the electric push rod 1, which is electrically connected to the drive assembly, the operator can directly transmit an electrical signal to the drive assembly by pressing the control button 12 to control the extension and retraction of the electric push rod 1 without the need for additional control equipment. This simplifies the operation of the electric actuator 1, allowing operators to easily adjust the device height with one or both hands without frequent adjustments to their posture. This improves the efficiency and convenience of height adjustment, further optimizing the testing experience. By using a high-hardness alloy material for the striking head 52 of the limiting striking mechanism 5, the high-hardness material effectively resists the wear and impact of concrete during long-term contact with the concrete surface, preventing deformation, cracking, or excessive wear of the striking head 52. This extends the service life of the striking head 52, reduces the frequency of replacement, lowers consumable costs, and ensures that the striking head 52 maintains a stable striking force and shape over a long period, guaranteeing consistent testing results.

[0029] In this embodiment, by setting up an electric push rod 1 and a control button 12, the problem of inconvenience in high-altitude inspection is solved. During inspection, the staff can operate the control button 12 on the electric push rod 1 to transmit an electrical signal to the drive component of the electric push rod 1. The drive component drives the electric push rod 1 to extend and retract, thereby adjusting the height of the sleeve 2, the lower movable rod 4, and the striking mechanism 5. There is no need to assemble multiple extended rods as in the prior art. This process requires no time-consuming assembly, and the electric push rod 1 is flexible in its extension and retraction, easily covering the inspection scenarios of concrete components of varying heights. This saves preparation time and avoids the inconvenience and storage space issues associated with extended rods, improving the convenience and efficiency of the inspection operation. By incorporating a striking mechanism 5, a pressure rod 6, a sensor body 7, and a spring 8, the accuracy of the inspection is enhanced. When the striking head 52 of the striking mechanism 5 contacts the top surface of the concrete component, the component generates a reaction force on the striking head 52, driving the movable rod 4 to move into the groove 3. Simultaneously, the movable rod 4 pushes the pressure rod 6 closer to the sensor body 7 and compresses the spring 8. The elastic deformation of the spring 8 buffers the pressure transmission process, making the pressure of the pressure rod 6 on the sensor body 7 more stable. The sensor body 7 converts the pressure signal into an electrical signal and transmits it to external signal processing equipment. This process replaces the existing method of manually judging hollow areas by listening to sounds, avoiding the subjectivity of human experience and reducing missed detections due to inconsistent judgment standards or lack of concentration, significantly improving the consistency and accuracy of the inspection results.

[0030] The implementation principle of this application embodiment is as follows: The worker first holds a sleeve 2 with anti-slip texture 11 and operates the control button 12 on the electric push rod 1 to transmit an electrical signal to the drive assembly of the electric push rod 1. Upon receiving the signal, the drive assembly drives the electric push rod 1 to extend and retract, thereby adjusting the overall height of the sleeve 2 connected to the electric push rod 1, the movable rod 4 within the groove 3 of the sleeve 2, and the striking mechanism 5 at the end of the movable rod 4, until the striking head 52 of the striking mechanism 5 is aligned with the top of the concrete component to be inspected, completing the height adaptation before inspection. When the striking head 52 contacts the top surface of the concrete component, the component generates a reaction force on the striking head 52. This reaction force is transmitted to the movable rod 4 through the connecting seat 51 fixedly connected to the striking head 52, causing the movable rod 4 to move into the groove 3. During this process, the sliders 9 on the left and right sides of the end of the movable rod 4 slide synchronously along the groove 10 within the groove 3, ensuring that the movable rod 4 moves in a straight line and preventing the striking head 52 from deviating. The movable rod 4 moves into the groove 3... When the device moves internally, the pressure rod 6 fixed at its other end moves closer to the sensor body 7 in the groove 3, and squeezes the spring 8 sleeved on the surface of the pressure rod 6 and the sensor body 7. The spring 8 undergoes elastic deformation, buffering the pressure of the pressure rod 6 on the sensor body 7, making the pressure transmission smoother. After sensing the pressure, the sensor body 7 converts the pressure signal into an electrical signal and transmits the electrical signal to the external signal processing equipment through a wire or wireless signal. After receiving the electrical signal, the external signal processing equipment analyzes the signal. If there is a hollow defect at the top of the concrete component, the hollow area will change the pressure feedback effect generated by the tap, causing the electrical signal transmitted by the sensor body 7 to be abnormal. The external signal processing equipment determines whether there is a hollow at the top of the concrete component and the approximate location of the hollow based on whether the signal is abnormal. After the inspection is completed, the operator operates the control button 12 to retract the electric push rod 1. At the same time, the spring 8 restores its elastic deformation, pushing the movable rod 4, the pressure rod 6 and the tapping mechanism 5 back to the initial position for the next inspection.

Claims

1. A device for detecting concrete defects on the top of a concrete member, comprising an electric actuator (1), characterized in that: The telescopic end of the electric push rod (1) is provided with a sleeve (2), and the lower end of the sleeve (2) is provided with a groove (3). A movable rod (4) is slidably connected inside the groove (3), and a striking mechanism (5) is fixedly connected to the end of the movable rod (4) away from the groove (3). A pressure rod (6) is fixedly connected to the end of the movable rod (4) slidably connected inside the groove (3). A sensor body (7) is provided inside the groove (3) corresponding to the pressure rod (6). A spring (8) is sleeved on the surface of the pressure rod (6) and the sensor body (7). One end of the spring (8) is fixedly connected to the side of the sensor body (7) fixed inside the groove (3), and the other end of the spring (8) is fixedly connected to the end of the movable rod (4) slidably connected inside the groove (3).

2. The concrete defect detection device for the top of a concrete component according to claim 1, characterized in that: The movable rod (4) is slidably connected to the left and right sides of one end of the groove (3), and the groove (3) is provided with a sliding groove (10) that matches the sliding block (9), and the sliding block (9) is slidably connected to the inside of the sliding groove (10).

3. The concrete defect detection device for the top of a concrete component according to claim 1, characterized in that: The electric push rod (1) and the sleeve (2) are detachably connected, and the detachable connection method is threaded connection or snap-fit ​​connection.

4. The concrete defect detection device for the top of a concrete component according to claim 1, characterized in that: The striking mechanism (5) includes a connecting seat (51) and a striking head (52). One end of the connecting seat (51) is detachably connected to the end of the movable rod (4) away from the groove (3), and the other end is fixedly connected to the striking head (52).

5. A concrete defect detection device for the top of a concrete component according to claim 1, characterized in that: The sensor body (7) is a pressure sensor, and the sensor body (7) is connected to an external signal processing device via wires or wireless signals.

6. The concrete defect detection device for the top of a concrete member according to claim 1, characterized in that: The outer wall of the sleeve (2) is provided with anti-slip texture (11), which is a strip pattern or a grid pattern.

7. A concrete defect detection device for the top of a concrete component according to claim 1, characterized in that: The electric push rod (1) is provided with a control button (12), which is electrically connected to the drive assembly of the electric push rod (1) and is used to control the extension and retraction of the electric push rod (1).

8. A concrete defect detection device for the top of a concrete member according to claim 4, characterized in that: The striking head (52) of the striking mechanism (5) is made of a high-hardness material, which is an alloy material.

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