A concrete structure health monitoring device
By designing a concrete structure health monitoring device with clamping and protective structures, the problems of inaccurate detection data and easy equipment damage caused by hand-held operation were solved, achieving high-precision detection and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国市政工程西北设计研究院有限公司
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-24
AI Technical Summary
In existing concrete structure rebound testing, handheld operation is easily affected by the experience and hand stability of the tester, resulting in inaccurate data. Furthermore, the testing end is easily damaged, and the equipment has a short service life.
A concrete structure health monitoring device was designed, comprising a base plate, sleeve, guide column, mounting plate, rebound hammer, protective shell, and through hole. The device ensures that the rebound hammer is perpendicular to the concrete structure through clamping and protective structures, and protects the rebound hammer with a rotatable limiting plate and protective shell, enabling convenient replacement.
It improves the accuracy of test data, extends the service life of equipment, and reduces maintenance costs.
Smart Images
Figure CN224552979U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete monitoring technology, and in particular relates to a device for monitoring the health status of concrete structures. Background Technology
[0002] Concrete structure health monitoring devices are specialized equipment used to assess the safety and durability of concrete structures (such as bridges, buildings, and tunnels). Their core function is to determine whether the structure has problems such as cracking, insufficient strength, or aging by detecting parameters such as concrete strength, surface damage, and internal defects, providing data support for maintenance and repair. Among various testing methods, monitoring devices based on the rebound method are widely used for rapid testing of concrete surface strength due to their ease of operation and low cost. The principle is to use a rebound hammer to strike the concrete surface and calculate the compressive strength of the concrete based on the distance the hammer bounces back (rebound value), thus reflecting the health status of the structure.
[0003] In existing technologies, rebound testing of concrete structures often involves directly using a handheld rebound hammer: the operator holds the hammer, aligns its testing end with the area to be tested, manually applies pressure to bring the impact rod into contact with the concrete surface, triggers the impact, and reads the rebound value. While this method of directly using a rebound hammer is simple and direct, it has the following significant drawbacks in practical applications:
[0004] First, in existing handheld operation methods, the angle control relies entirely on the experience and hand stability of the testing personnel. When working at heights, inspecting curved surfaces, or operating for extended periods, hand tremors and visual errors can easily cause the rebound hammer to tilt, severely affecting the reliability of the test data (the accuracy of the rebound method is highly dependent on the perpendicularity of the rebound hammer's impact direction to the concrete surface; if the impact angle is tilted, it will lead to uneven energy loss, directly affecting the accuracy of the rebound value). Second, in existing technologies, rebound hammers are mostly independent devices, lacking a dedicated protective structure after testing. The testing end is often exposed to the external environment, and direct contact between the testing end and other objects during transportation or storage can easily cause deformation or wear, shortening the equipment's lifespan and increasing maintenance costs.
[0005] Therefore, it is essential to invent a device for monitoring the health status of concrete structures. Utility Model Content
[0006] To address the above problems, this utility model proposes a device for monitoring the health status of concrete structures, and the technical solution used is as follows:
[0007] A concrete structure health monitoring device includes a base plate, a sleeve, a guide column, a mounting plate, a rebound hammer, a protective shell, and a through hole. The sleeve is bolted to the upper side of the base plate, and the guide column is slidably mounted inside the sleeve. The mounting plate is bolted to the upper end of the guide column, and a rebound hammer is fixed to the mounting plate, with its detection end positioned between the base plate and the mounting plate. A protective shell is provided on the outer side of the rebound hammer, with its two ends threadedly engaged with the corresponding base plate and mounting plate, respectively, and the threads at both ends of the protective shell rotating in opposite directions. A through hole is formed inside the base plate, located below the detection end of the rebound hammer.
[0008] Furthermore, the base plate includes a first clamping plate, a second clamping plate, sliding columns, a pressure plate, and a compression spring. A sleeve is bolted to the upper side of the first clamping plate, and a protective shell is threaded to the upper side of the first clamping plate. The second clamping plate is slidably installed inside the lower side of the first clamping plate. Several sliding columns are welded to the upper side of the second clamping plate, and each sliding column slides through the first clamping plate. A pressure plate is welded to the end of each sliding column away from the second clamping plate, and a compression spring is fixed between the pressure plate and the first clamping plate. Both the first and second clamping plates have through holes. When testing a concrete structure without clamping conditions, the lower side of the first clamping plate can be directly fitted to the testing position on the concrete structure. When clamping conditions are met, the second clamping plate can be pulled outwards, and the first and second clamping plates are respectively positioned on both sides of the concrete structure. This allows the first and second clamping plates to clamp and fix the concrete structure under the action of the compression spring, facilitating the perpendicular placement of the rebound hammer to the concrete structure through the cooperation of the sleeve, guide column, and mounting plate.
[0009] Furthermore, the base plate also includes auxiliary rods, at least two of which are hinged and rotatably mounted on the outer side of the first clamping plate. The lower side of the auxiliary rod is on the same horizontal plane as the lower side of the first clamping plate, and magnets are embedded and fixed on the side of the auxiliary rod closest to the first clamping plate. When it is necessary to inspect a concrete structure that does not have clamping conditions, the auxiliary rod can be rotated so that it is perpendicular to the outer side of the first clamping plate, thereby improving the fit between the first clamping plate and the concrete structure and preventing the first clamping plate from tilting on the concrete structure. When it is not needed, the auxiliary rod can be attracted to the first clamping plate by magnets.
[0010] Furthermore, the mounting plate includes a plate body, a limiting plate, and a stud. The plate body is fixed to the upper end of the guide post by bolts, and a mounting hole is formed through the interior of the plate body, in which a rebound spring is movably mounted. The limiting plate is slidably mounted inside the mounting hole, and the side of the limiting plate away from the rebound spring is rotatably connected to the stud. The stud is threadedly connected to the plate body. The lower side of the plate body is threadedly fixed to the upper end of the protective shell. In use, the limiting plate can be pressed and fixed to the rebound spring by rotating the stud. This design facilitates the replacement of the rebound spring.
[0011] Furthermore, flexible pads are fixed to the side of the limiting plate near the rebound spring and the wall of the mounting hole inside the plate. This arrangement can prevent the mounting hole and the limiting plate from damaging the rebound spring.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model, through the setting of the base plate, allows the lower side of the first clamping plate to be directly attached to the test position of the concrete structure when testing is required for concrete structures without clamping conditions. When clamping conditions are available, the second clamping plate can be pulled outward, and then the first and second clamping plates are respectively set on both sides of the concrete structure, so that the first and second clamping plates clamp and fix the concrete structure under the action of compression springs. This facilitates the vertical setting of the rebound hammer with the concrete structure through the cooperation of the sleeve, guide column and mounting plate.
[0014] 2. The mounting plate of this utility model allows the rebound spring to be pressed and fixed by rotating the stud during use, which facilitates the replacement of the rebound spring.
[0015] 3. The protective shell of this utility model can be directly fixed between the base plate and the mounting plate by thread engagement when not in use. This not only limits the distance between the base plate and the mounting plate, but also protects the detection end of the rebound hammer to prevent damage to the rebound hammer. When it is needed, because the threads at both ends of the protective shell rotate in opposite directions, the protective shell can be separated from the base plate and the mounting plate by rotating it in one direction. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0019] Figure 3 This is a schematic diagram of the structure of the base plate of this utility model.
[0020] Figure 4 This is a utility model Figure 2 A magnified schematic diagram of the structure at position "A" in the middle.
[0021] In the picture:
[0022] 1-Base plate, 11-First clamping plate, 12-Second clamping plate, 13-Sliding column, 14-Pressure plate, 15-Compression spring, 16-Auxiliary rod, 2-Sleeve, 3-Guide column, 4-Mounting plate, 41-Plate body, 42-Limiting plate, 43-Claw stud, 5-Rebound spring, 6-Protective shell, 7-Through hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.
[0025] Please see Figures 1 to 4As shown, this utility model is a concrete structure health status monitoring device, including a base plate 1, a sleeve 2, a guide column 3, a mounting plate 4, a rebound hammer 5, a protective shell 6, and a through hole 7. The upper side of the base plate 1 is fixed to the sleeve 2 by bolts, and the guide column 3 is slidably installed inside the sleeve 2. The upper end of the guide column 3 is fixed to the mounting plate 4 by bolts, and the rebound hammer 5 is fixed on the mounting plate 4. The detection end of the rebound hammer 5 is located between the base plate 1 and the mounting plate 4. The outer side of the rebound hammer 5 is provided with a protective shell 6, and the two ends of the protective shell 6 are respectively fixed to the corresponding base plate 1 and mounting plate 4 by thread engagement, and the threads at the two ends of the protective shell 6 are rotated in opposite directions. The bottom plate 1 is provided with a through hole 7, which is located below the detection end of the rebound hammer 5.
[0026] Specifically, the base plate 1 includes a first clamping plate 11, a second clamping plate 12, sliding columns 13, a pressure plate 14, and a compression spring 15. A sleeve 2 is bolted to the upper side of the first clamping plate 11, and a protective shell 6 is threadedly engaged to the upper side of the first clamping plate 11. The second clamping plate 12 is slidably installed inside the lower side of the first clamping plate 11. Several sliding columns 13 are welded to the upper side of the second clamping plate 12, and each sliding column 13 slides through the first clamping plate 11. A pressure plate 14 is welded to the end of each sliding column 13 away from the second clamping plate 12, and a compression spring 15 is fixed between the pressure plate 14 and the first clamping plate 11. Both the first clamping plate 11 and the second clamping plate 12 have through holes 7. When it is necessary to test a concrete structure that does not have clamping conditions, the lower side of the first clamping plate 11 can be directly attached to the test position of the concrete structure. When clamping conditions are available, the second clamping plate 12 can be pulled outward, and then the first clamping plate 11 and the second clamping plate 12 can be respectively placed on both sides of the concrete structure, so that the first clamping plate 11 and the second clamping plate 12 clamp and fix the concrete structure under the action of the compression spring 15. This allows the rebound hammer 5 to be set perpendicular to the concrete structure through the cooperation of the sleeve 2, the guide column 3 and the mounting plate 4.
[0027] Specifically, the base plate 1 further includes auxiliary rods 16, of which at least two are provided. Each auxiliary rod 16 is hinged and rotatably mounted on the outer side of the first clamping plate 11. The lower side of the auxiliary rod 16 is on the same horizontal plane as the lower side of the first clamping plate 11, and magnets are embedded and fixed on the side of the auxiliary rod 16 near the first clamping plate 11. When it is necessary to inspect a concrete structure that does not have clamping conditions, the auxiliary rod 16 can be rotated so that the auxiliary rod 16 is perpendicular to the outer side of the first clamping plate 11, thereby improving the fit between the first clamping plate 11 and the concrete structure and preventing the first clamping plate 11 from tilting on the concrete structure. When it is not needed, the auxiliary rod 16 can be attracted to the first clamping plate 11 by magnets.
[0028] Specifically, the mounting plate 4 includes a plate body 41, a limiting plate 42, and a stud 43. The plate body 41 is fixed to the upper end of the guide post 3 by bolts, and a mounting hole is provided through the interior of the plate body 41, in which a rebound spring 5 is movably installed. The limiting plate 42 is slidably installed inside the mounting hole, and the side of the limiting plate 42 away from the rebound spring 5 is rotatably connected to the stud 43. The stud 43 is threadedly connected to the plate body 41. The lower side of the plate body 41 is fixed to the upper end of the protective shell 6 by threaded engagement. In use, the limiting plate 42 can be pressed and fixed to the rebound spring 5 by rotating the stud 43. This arrangement facilitates the replacement of the rebound spring 5.
[0029] Specifically, flexible pads are fixed to the side of the limiting plate 42 near the rebounder 5 and the wall of the mounting hole inside the plate body 41. This arrangement can prevent the mounting hole and the limiting plate 42 from damaging the rebounder 5.
[0030] Please see Figure 1-4 As shown, this utility model is a concrete structure health status monitoring device. Its working principle is as follows: When it is needed, the protective shell 6 is first removed separately. Then, through the cooperation of the base plate 1, sleeve 2, guide column 3 and mounting plate 4, the rebound hammer 5 is set perpendicular to the concrete structure. Then, the mounting plate 4 is pressed so that the detection end of the rebound hammer 5 passes through the through hole 7 and comes into contact with the concrete structure. The health status of the concrete is then detected by the rebound hammer 5. After use, the rebound hammer 5 can be protected by resetting the protective shell 6.
[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A health status monitoring device for concrete structures, comprising a base plate (1), a sleeve (2), a guide column (3), a mounting plate (4), a rebound hammer (5), a protective shell (6), and a through hole (7), characterized in that: A sleeve (2) is fixed to the upper side of the base plate (1) by bolts, and a guide post (3) is slidably installed inside the sleeve (2); an mounting plate (4) is fixed to the upper end of the guide post (3) by bolts, and a rebound hammer (5) is fixed on the mounting plate (4), with the detection end of the rebound hammer (5) located between the base plate (1) and the mounting plate (4); a protective shell (6) is provided on the outside of the rebound hammer (5), and the two ends of the protective shell (6) are respectively fixed to the corresponding base plate (1) and mounting plate (4) by thread engagement, and the threads at the two ends of the protective shell (6) are rotated in opposite directions; a through hole (7) is provided through the interior of the base plate (1), and the through hole (7) is located on the lower side of the detection end of the rebound hammer (5).
2. The concrete structure health status monitoring device as described in claim 1, characterized in that: The base plate (1) includes a first clamping plate (11), a second clamping plate (12), a sliding column (13), a pressure plate (14), and a compression spring (15). A sleeve (2) is fixed to the upper side of the first clamping plate (11) by bolts, and a protective shell (6) is fixed to the upper side of the first clamping plate (11) by thread engagement. The second clamping plate (12) is slidably installed inside the lower side of the first clamping plate (11). Several sliding columns (13) are fixed to the upper side of the second clamping plate (12) by welding. All sliding columns (13) slide through the first clamping plate (11). A pressure plate (14) is fixed to the end of the sliding column (13) away from the second clamping plate (12) by welding. A compression spring (15) is fixed between the pressure plate (14) and the first clamping plate (11). Through holes (7) are opened on both the first clamping plate (11) and the second clamping plate (12).
3. The concrete structure health status monitoring device as described in claim 2, characterized in that: The base plate (1) also includes auxiliary rods (16), and at least two auxiliary rods (16) are provided. The auxiliary rods (16) are all hinged and rotatably mounted on the outer side of the first clamping plate (11). The lower side of the auxiliary rod (16) is on the same horizontal plane as the lower side of the first clamping plate (11), and magnets are embedded and fixed on the side of the auxiliary rod (16) near the first clamping plate (11).
4. The concrete structure health status monitoring device as described in claim 1, characterized in that: The mounting plate (4) includes a plate body (41), a limiting plate (42), and a stud (43). The plate body (41) is fixed to the upper end of the guide post (3) by bolts, and a mounting hole is provided through the inside of the plate body (41). A rebound spring (5) is movably installed inside the mounting hole. The limiting plate (42) is slidably installed inside the mounting hole. The side of the limiting plate (42) away from the rebound spring (5) is rotatably connected to the stud (43). The stud (43) is connected to the plate body (41) by thread engagement. The lower side of the plate body (41) is fixed to the upper end of the protective shell (6) by thread engagement.
5. The concrete structure health status monitoring device as described in claim 4, characterized in that: Flexible pads are fixed to the side of the limiting plate (42) near the rebounder (5) and the wall of the mounting hole inside the plate (41).