An extendable sounding type attached type concrete strength rebound apparatus
By designing a stretch-type attached concrete strength rebound hammer, and utilizing the attachment mechanism, telescopic mechanism, and adaptive detection mechanism, the problems of low detection efficiency and low accuracy in the existing technology are solved, realizing automated detection and data recording in high-altitude and edge-prone environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing concrete strength testing methods suffer from low efficiency, large errors in test results, inability to test areas at heights, near edges, or in complex construction environments, and inconvenient data recording.
Design a telescopic contact type attached concrete strength rebound hammer, which adopts an attachment mechanism, a telescopic mechanism and an adaptive detection mechanism to achieve automatic positioning, contact testing and data analysis. Combined with a robotic arm system and a control unit, it automatically records the test data.
It improves the accuracy and efficiency of testing, enabling concrete strength testing at high altitudes, near edges, or in complex environments, reducing manual operations, and achieving automatic data recording and uploading.
Smart Images

Figure CN120507245B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete testing instruments, and in particular to a stretch-touch type adhesive concrete strength rebound hammer. Background Technology
[0002] The rebound hammer is suitable for testing the strength of general building concrete components, bridges, tunnels, and various concrete components such as slabs, beams, columns, and cable trays. Throughout the operation of the rebound hammer, attention should be paid to the posture of holding the rebound hammer. One hand should hold the middle part of the rebound hammer to help straighten it; the other hand should hold the tail of the instrument to apply pressure to the instrument, which also helps to straighten it.
[0003] Currently, testing is often performed using a handheld rebound hammer, but this method has the following drawbacks:
[0004] 1) Manual inspection is inefficient, and incorrect hand-holding posture can lead to errors in the inspection results;
[0005] 2) Manual inspection is limited by operating space and angle verticality, and cannot effectively inspect areas at height, near edges, or in complex construction environments;
[0006] 3) Manual testing requires manually recording the test data, which is very inconvenient. Summary of the Invention
[0007] Therefore, it is necessary to provide a stretch-probing type adhesive concrete strength rebound hammer to overcome the defects mentioned in the background art.
[0008] A stretch-penetration type adhesive concrete strength rebound hammer includes:
[0009] An attachment mechanism, one end of which is used to connect to a moving mechanism;
[0010] A telescopic mechanism, one end of which is connected to the other end of the attachment mechanism, and the other end of which is provided with a fixing mechanism, the telescopic mechanism being used to bring the fixing mechanism close to the area to be detected; and
[0011] An adaptive detection mechanism is movably connected to the fixed mechanism. The adaptive detection mechanism includes a planar plate and a spring mechanism. A through hole is provided at the geometric center of the planar plate. An antenna rod is provided around one end of the planar plate around the through hole. A spring mechanism is provided at the other end of the planar plate at a position corresponding to the through hole. A hinge rod is provided around the spring mechanism. The hinge rod is movably connected to the fixed mechanism.
[0012] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, the attachment mechanism includes:
[0013] A base plate, wherein fixing devices are provided at both ends of the base plate;
[0014] A drive mechanism is disposed at one end of the base plate; and
[0015] A control unit is located on one side of the drive mechanism and is used to control the drive mechanism.
[0016] As a preferred embodiment of the extended probe-type adhesive concrete strength rebound hammer of the present invention, the driving mechanism includes:
[0017] Fixed base; and
[0018] A drive motor is mounted on the fixed base, and its output end extends into the fixed base.
[0019] As a preferred embodiment of the extended contact type adhesive concrete strength rebound hammer of the present invention, the telescopic mechanism includes:
[0020] The first robotic arm has one end rotatably connected to the fixed base, and the drive motor drives the first robotic arm to rotate.
[0021] A second robotic arm, one end of which is rotatably connected to the other end of the first robotic arm, and connected to the first robotic arm via a first hydraulic rod; and
[0022] The third robotic arm has one end rotatably connected to the other end of the second robotic arm and is connected to the second robotic arm via a second hydraulic rod.
[0023] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, the fixing mechanism includes:
[0024] Base plate; and
[0025] An umbrella-shaped frame is disposed between the base plate and the other end of the third robotic arm, for connecting the base plate and the third robotic arm.
[0026] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, the base plate is provided with a mounting hole in the middle, and a movable sleeve is provided around the mounting hole at the connection end with the umbrella-shaped frame.
[0027] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, the probe rod is disposed on the edge of the planar plate, and a contact pressure feedback sensor is disposed at its end, the contact pressure feedback sensor being connected to the control unit.
[0028] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, a protective sleeve is provided at the corresponding position of the flat plate and the rebound mechanism.
[0029] As a preferred embodiment of the extended penetration type adhesive concrete strength rebound hammer of the present invention, the rebound mechanism includes:
[0030] The rebound hammer body, with its detection end facing the through hole; and
[0031] A telescopic motor is located between the fixed end of the rebound spring body and the protective sleeve;
[0032] The rebound spring body and the telescopic motor are connected to the control unit via a data cable.
[0033] As a preferred embodiment of the extended probe-type attached concrete strength rebound hammer of the present invention, one end of the hinge rod is disposed in the movable sleeve, and the other end is provided with a universal ball bearing gimbal, which is directly or through a cross slide to the flat plate.
[0034] The beneficial effects of this invention are:
[0035] This invention automates the entire process of concrete strength testing, from positioning and probing to data analysis, through an attachment mechanism, a telescopic mechanism, and an adaptive detection mechanism, replacing the original manual testing and thus improving testing accuracy and efficiency.
[0036] This invention uses an attachment mechanism and a telescopic mechanism to install the rebound hammer on the irregular steel structure surface of large tooling such as building construction machines and climbing formwork, so as to realize the strength detection of concrete in areas at high altitudes, near edges, or in complex construction environments.
[0037] The adaptive detection mechanism in this invention is connected to the control unit in the attachment mechanism to realize the automatic recording and uploading of detection data, reducing manual operation. Attached Figure Description
[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0039] Figure 1 This is a schematic diagram of the overall structure of the adhesive-type concrete strength rebound hammer in the embodiments of this application;
[0040] Figure 2 This is a schematic diagram of the attachment mechanism in the embodiments of this application;
[0041] Figure 3 This is a schematic diagram of the drive motor structure in an embodiment of this application;
[0042] Figure 4This is a schematic diagram of the telescopic mechanism in the embodiments of this application;
[0043] Figure 5 This is a schematic diagram of the fixing mechanism in the embodiments of this application;
[0044] Figure 6 This is one of the structural schematic diagrams of the adaptive detection mechanism in the embodiments of this application;
[0045] Figure 7 This is the second schematic diagram of the adaptive detection mechanism in the embodiments of this application;
[0046] Figure 8 This is the third schematic diagram of the adaptive detection mechanism in the embodiments of this application;
[0047] Figure 9 This is the fourth schematic diagram of the adaptive detection mechanism in the embodiments of this application;
[0048] Figure 10 This is a schematic diagram of the adaptive detection mechanism in contact with concrete in an embodiment of this application;
[0049] Explanation of reference numerals in the attached figures:
[0050] 1000, Attachment mechanism; 1100, Base plate; 1200, Drive mechanism; 1210, Fixed base; 1220, Drive motor; 1300, Control unit;
[0051] 2000, Telescopic mechanism; 2100, First robotic arm; 2200, Second robotic arm; 2300, Third robotic arm; 2400, First hydraulic rod; 2500, Second hydraulic rod;
[0052] 3000, Fixing mechanism; 3100, Base plate; 3200, Umbrella-shaped frame; 3300, Movable sleeve;
[0053] 4000, Adaptive detection mechanism; 4100, Tentacle rod; 4200, Flat plate; 4300, Rebound mechanism; 4310, Rebound device body; 4320, Telescopic motor; 4400, Protective cover; 4500, Hinge rod; 4600, Universal ball bearing head; 4700, Cross slide. Detailed Implementation
[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0055] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing 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, and therefore should not be construed as a limitation of this application.
[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0058] In 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.
[0059] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0060] Example
[0061] This embodiment provides a stretch-type, attached concrete strength rebound hammer, such as... Figure 1 As shown, the device includes an attachment mechanism 1000, a telescopic mechanism 2000, a fixing mechanism 3000, and an adaptive detection mechanism 4000. One end of the attachment mechanism 1000 is used to connect to a moving mechanism; one end of the telescopic mechanism 2000 is connected to the other end of the attachment mechanism 1000, and the fixing mechanism 3000 is disposed at its other end. The telescopic mechanism 2000 is used to bring the fixing mechanism 3000 close to the area to be detected; the adaptive detection mechanism 4000 is movably connected to the fixing mechanism 3000. The adaptive detection mechanism 4000 includes a flat plate 4200 and a spring mechanism 4300. A through hole is opened at the geometric center of the flat plate 4200. An antenna rod 4100 is disposed around the through hole at one end of the flat plate 4200, and a spring mechanism 4300 is disposed at the corresponding position of the other end of the flat plate 4200. A hinge rod 4500 is disposed around the spring mechanism 4300, and the hinge rod 4500 is movably connected to the fixing mechanism 3000.
[0062] The attachment mechanism 1000 is used to fix the overall device on the moving mechanism. While fixing the overall device, it also facilitates the detection of areas that are difficult to detect manually. The fixing mechanism 3000 is used to install the adaptive detection mechanism 4000. The telescopic mechanism 2000 is used to bring the fixing mechanism 3000 and the adaptive detection mechanism 4000 close to the area to be detected.
[0063] like Figure 2 As shown, the attachment mechanism 1000 includes a base plate 1100, a drive mechanism 1200, and a control unit 1300. The base plate 1100 has fixing devices at both ends. The drive mechanism 1200 is located at one end of the base plate 1100. The control unit 1300 is located on one side of the drive mechanism 1200 and is used to control the drive mechanism 1200.
[0064] The attachment mechanism 1000 employs a high-strength, detachable flange fixing device, and the base plate 1100 is installed by adhering to the irregular steel structure surface of large tooling such as the building construction machine and climbing formwork. The base plate 1100 is connected to the building construction machine, climbing formwork, and other large tooling via the fixing device. The drive mechanism 1200 is used to drive the telescopic mechanism 2000 to rotate.
[0065] The drive mechanism 1200 includes a fixed base 1210 and a drive motor 1220. The drive motor 1220 is disposed on the fixed base 1210, and its output end extends into the fixed base 1210.
[0066] The fixed base 1210 includes a pair of symmetrically spaced clamping plates, and one end of the telescopic mechanism 2000 is disposed between the pair of clamping plates, such as... Figure 3 As shown, the output end of the drive motor 1220 is an external gear plate to ensure that it is not affected by environmental or dust pollution.
[0067] The control unit 1300 is a dual-core controller built on an industrial-grade PLC and an embedded ARM processor, realizing motion trajectory planning of the telescopic mechanism 2000, closed-loop pressure control of the hydraulic system, and automated execution of the detection process. Users can preset detection points and trigger single / continuous detection commands through a handheld terminal or PC HMI interface. The control unit 1300 is externally powered and internally connects to the drive mechanism 1200, the telescopic mechanism 2000, and the adaptive detection mechanism 4000. The chip of the control unit 1300 embeds a 4G module, which has network data transmission capability. When receiving instructions from the server and executing the detection task, it coordinates the drive mechanism 1200, the telescopic mechanism 2000, and the adaptive detection mechanism 4000 to achieve the detection purpose. After the detection is completed, the module is responsible for transmitting the data to the server and driving the drive mechanism 1200, the telescopic mechanism 2000, and the adaptive detection mechanism 4000, so that the entire structure is in a tightened and ready state.
[0068] like Figure 4 As shown, the telescopic mechanism 2000 includes a first robotic arm 2100, a second robotic arm 2200, a third robotic arm 2300, a first hydraulic rod 2400, and a second hydraulic rod 2500. One end of the first robotic arm 2100 is rotatably connected to the fixed base 1210, and a drive motor 1220 drives the first robotic arm 2100 to rotate. One end of the second robotic arm 2200 is rotatably connected to the other end of the first robotic arm 2100, and is connected to the first robotic arm 2100 through the first hydraulic rod 2400. One end of the third robotic arm 2300 is rotatably connected to the other end of the second robotic arm 2200, and is connected to the second robotic arm 2200 through the second hydraulic rod 2500.
[0069] The telescopic mechanism 2000 is a multi-degree-of-freedom robotic arm system, consisting of three robotic arms and two hydraulic rods. The first robotic arm 2100 has a gear at its connection to the fixed base 1210 and is driven by a drive motor 1220. The second robotic arm 2200 and the third robotic arm 2300 are driven by the first hydraulic rod 2400 and the second hydraulic rod 2500, respectively, employing a series-parallel hybrid configuration (the first robotic arm 2100 and the second robotic arm 2200 are mechanically connected in series to achieve a wide range of extension, while the third robotic arm 2300 is connected in parallel to provide end-effector fine-tuning). The first hydraulic rod 2400 and the second hydraulic rod 2500 are arranged on both sides to achieve a wide-angle driving effect. Both the first hydraulic rod 2400 and the second hydraulic rod 2500 are controlled by a control unit 1300.
[0070] like Figure 5 As shown, the fixing mechanism 3000 includes a base plate 3100 and an umbrella-shaped frame 3200. The umbrella-shaped frame 3200 is disposed between the base plate 3100 and the other end of the third robotic arm 2300, and is used to connect the base plate 3100 and the third robotic arm 2300.
[0071] The base plate 3100 is used to provide an installation platform for the adaptive detection mechanism 4000. The umbrella-shaped frame 3200 consists of 6 frames, which are evenly arranged in pairs at an angle of 60°. It is vertically connected to the adaptive detection mechanism 4000 from the telescopic mechanism 2000. It is used to connect the base plate 3100 and the third robotic arm 2300, and to provide installation space for part of the structure of the adaptive detection mechanism 4000.
[0072] The base plate 3100 has a mounting hole in the middle to facilitate the installation of the adaptive detection mechanism 4000. The connection end of the adaptive detection mechanism 4000 with the umbrella-shaped frame 3200 is provided with a movable sleeve 3300 around the mounting hole to support the adaptive detection mechanism 4000 to move radially within a certain range and to limit and prevent excessive movement.
[0073] like Figures 6 to 9 As shown, the antenna rod 4100 is disposed on the edge of the flat plate 4200, and a contact pressure feedback sensor is disposed at its end. The contact pressure feedback sensor is connected to the control unit 1300.
[0074] The planar plate 4200 serves as the basic structure of the adaptive detection mechanism 4000. It is circular and has a through hole in the center for the rebound mechanism 4300 to operate. All other structures are attached to the planar plate 4200. The antenna rods 4100 are the first contact objects when the telescopic mechanism 2000 drives the adaptive detection mechanism 4000 to approach the concrete structure surface to be detected. There are a total of 3 rods, which are evenly arranged on the edge of the planar plate 4200 with an included angle of 120° between each pair.
[0075] A protective sleeve 4400 is provided at the corresponding position of the flat plate 4200 and the spring mechanism 4300 for installing the spring mechanism 4300.
[0076] The rebound mechanism 4300 includes a rebound device body 4310 and a telescopic motor 4320. The rebound device body 4310 is installed inside the protective sleeve 4400 with its detection end facing the through hole. The telescopic motor 4320 is located between the fixed end of the rebound device body 4310 and the protective sleeve 4400.
[0077] The rebound hammer body 4310 and the telescopic motor 4320 are connected to the control unit 1300 via a data cable to achieve the functions of power supply and data transmission. The telescopic motor 4320 drives the rebound hammer body 4310 to move closer to or away from the area to be tested.
[0078] One end of the hinge rod 4500 is located inside the movable sleeve 3300, and the other end is provided with a universal ball bearing head 4600. The universal ball bearing head 4600 is directly or through a cross slide 4700 connected to the flat plate 4200.
[0079] Three hinge rods 4500 are evenly arranged and connected to the movable sleeve 3300 of the third robotic arm 2300. One hinge rod 4500 is directly connected to the flat plate 4200 via a universal ball bearing head 4600, while the remaining hinge rods 4500 are connected to the flat plate 4200 via the universal ball bearing head 4600 and the cross slide 4700. When the angle between the flat plate 4200 and the concrete structure surface to be inspected is different, the extension length of the remaining hinge rods 4500 changes, and their planar position on the flat plate 4200 is freely adjusted via the cross slide 4700. After one of the tentacle rods 4100 contacts the area to be inspected, the remaining tentacle rods 4100 are adjusted to contact the area to be inspected, thereby making the rebound mechanism 4300 perpendicular to the area to be inspected.
[0080] The cross slide 4700 includes a horizontal slide and a vertical slide. The horizontal slide is fixedly welded to the flat plate 4200. The vertical slide is set perpendicular to the horizontal slide and can slide horizontally on the horizontal slide. The bottom of the universal ball bearing head 4600 can slide vertically on the vertical slide to support the movement of the hinge rod 4500.
[0081] The horizontal and vertical slides can also be equipped with limiting devices to prevent derailment.
[0082] During the process of approaching the concrete surface to be inspected, after one of the probes 4100 detects the area to be inspected, the hinge rod 4500 changes its extension length via the cross slide 4700, causing the remaining probe 4100 to sequentially contact the concrete surface of the area to be inspected. This ensures that the flat plate 4200 is parallel to the concrete surface, and the rebound mechanism 4300 is perpendicular to the concrete surface. When the pressure of the three probes 4100 is similar and within the set value range, it indicates that the adaptive detection mechanism 4000 has contacted the concrete surface to be inspected, and the inspection operation can proceed. Figure 10 As shown.
[0083] This embodiment also provides the workflow of the above-mentioned extended penetration type adhesive concrete strength rebound hammer, including the following steps:
[0084] Step 1: Initialize positioning. After the device reaches the designated position, the telescopic mechanism 2000 unfolds from the safe standby position and extends in the preset direction.
[0085] Step 2: Touch positioning. The telescopic mechanism 2000 pushes the end of the adaptive detection mechanism 4000 to the preset detection position. The antenna rod 4100 touches the concrete structure surface and adaptively adjusts the flat plate 4200 to be perpendicular to the concrete structure surface to be tested. The contact pressure feedback sensor of the antenna rod 4100 feeds back to make the flat plate 4200 and the surface to be tested fit together.
[0086] Step 3: Trigger detection. The control unit 1300 sends a pulse signal to drive the telescopic motor 4320, causing the rebound spring to perform impact detection and simultaneously collect rebound data.
[0087] Step 4: Data feedback. The raw bounce data is preprocessed by the edge computing gateway of the control unit 1300 and then uploaded to the cloud server to generate a report.
[0088] Step 5: Reset and standby. The telescopic mechanism 2000 retracts to the storage position and awaits the next detection command.
[0089] This invention, through the deep integration of mechanical design, control algorithms, and data links, completely reconstructs the traditional rebound detection operation mode, providing a standardized tool for concrete quality control in intelligent construction scenarios. It achieves multi-directional coverage capabilities, with three robotic arms working collaboratively to cover high-altitude and confined spaces inaccessible to traditional manual labor; millimeter-level precision is guaranteed, with hydraulic rods and the 4100-type tentacles breaking through the precision limits of manual operation; zero human intervention is achieved through full automation from positioning and probing to data analysis, reducing the risks of high-altitude operations by more than 80%; and intelligent diagnostics are extended, with a cloud platform supporting the linkage of detection data with BIM models to achieve early warning of structural defects.
[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A stretch-penetration type adhesive concrete strength rebound hammer, characterized in that, include: An attachment mechanism, one end of which is used to connect to a moving mechanism; A telescopic mechanism, one end of which is connected to the other end of the attachment mechanism, and the other end of which is provided with a fixing mechanism, the telescopic mechanism being used to bring the fixing mechanism close to the area to be detected; and An adaptive detection mechanism is movably connected to the fixed mechanism. The adaptive detection mechanism includes a flat plate and a spring mechanism. A through hole is provided at the geometric center of the flat plate. An antenna rod is provided around one end of the flat plate around the through hole. A spring mechanism is provided at the other end of the flat plate at a position corresponding to the through hole. A hinge rod is provided around the spring mechanism. The hinge rod is movably connected to the fixed mechanism. The antenna rods are located on the edge of the flat plate, and include three rods, which are evenly arranged on the edge of the flat plate with an included angle of 120° between each pair. A contact pressure feedback sensor is provided at the end of each rod, and the contact pressure feedback sensor is connected to the control unit. Three hinges are evenly arranged. One end of each hinge rod is located inside a movable sleeve. The other end of one hinge rod is directly connected to the flat plate via a universal ball bearing head. The other ends of the remaining hinge rods are connected to the flat plate via a universal ball bearing head and a cross slide. When the angle between the flat plate and the concrete structure surface to be inspected is different, the extension length of the remaining hinge rods changes. They can freely adjust their planar position on the flat plate via the cross slide. After one of the hinge rods contacts the area to be inspected, the remaining hinge rods are adjusted to make them contact the area to be inspected, thereby making the rebound mechanism perpendicular to the area to be inspected.
2. The extended penetration type adhesive concrete strength rebound hammer according to claim 1, characterized in that, The attachment mechanism includes: A base plate, wherein fixing devices are provided at both ends of the base plate; A drive mechanism is disposed at one end of the base plate; and A control unit is located on one side of the drive mechanism and is used to control the drive mechanism.
3. The extended penetration type adhesive concrete strength rebound hammer according to claim 2, characterized in that, The drive mechanism includes: Fixed base; and A drive motor is mounted on the fixed base, and its output end extends into the fixed base.
4. The extended penetration type adhesive concrete strength rebound hammer according to claim 1, characterized in that, The telescopic mechanism includes: The first robotic arm has one end rotatably connected to a fixed base, and a drive motor drives the first robotic arm to rotate. A second robotic arm, one end of which is rotatably connected to the other end of the first robotic arm, and connected to the first robotic arm via a first hydraulic rod; and The third robotic arm has one end rotatably connected to the other end of the second robotic arm and is connected to the second robotic arm via a second hydraulic rod.
5. The extended penetration type adhesive concrete strength rebound hammer according to claim 1, characterized in that, The fixing mechanism includes: Base plate; and An umbrella-shaped frame is disposed between the base plate and the other end of the third robotic arm, for connecting the base plate and the third robotic arm.
6. The extended penetration type adhesive concrete strength rebound hammer according to claim 5, characterized in that, The base plate has a mounting hole in the middle, and a movable sleeve is provided around the mounting hole at the end where it connects to the umbrella-shaped frame.
7. The extended penetration type adhesive concrete strength rebound hammer according to claim 1, characterized in that, The flat plate is provided with a protective sleeve at the corresponding position of the rebound mechanism.
8. The extended penetration type adhesive concrete strength rebound hammer according to claim 7, characterized in that, The springback mechanism includes: The rebound hammer body, with its detection end facing the through hole; and A telescopic motor is located between the fixed end of the rebound spring body and the protective sleeve; The rebound spring body and the telescopic motor are connected to the control unit via a data cable.
Citation Information
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