Measuring device for evaluating safety state of concrete structure

Abstract

The utility model relates to the technical field of concrete safety measurement, and solves the problems that two strain gauges are generally adopted for detection when the strain gauges are used for detection, and the installation positions of the strain gauges are kept consistent, for example, the positions of the two strain gauges are different, so that the detection result is easily influenced, and the accuracy of detection data is reduced. The measuring device comprises a positioning plate, strain gauges are arranged on the two sides of the surface of the positioning plate, a sliding groove is formed in the middle of the surface of the positioning plate, a clamping block is slidably connected into the sliding groove, mounting frames are fixedly mounted on the two sides of the middle of the surface of the positioning plate, and clamping assemblies are arranged on the surfaces of the mounting frames. The clamping assembly comprises a threaded cylinder fixedly mounted in the middle of the surface of the mounting frame, a threaded rod penetrates through the threaded cylinder in a threaded mode, the bottom of the threaded rod is rotationally connected with an extrusion block, and telescopic rods are arranged on the two sides of the top of the extrusion block.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete safety measurement, in particular to a measuring device for concrete structure safety status assessment. Background Art

[0002] The measuring device for assessing the safety status of a concrete structure disclosed in publication number CN219714583U comprises a strain gauge, a limit sleeve, a connecting screw, a mounting seat and a limit frame, wherein the limit sleeves are respectively inserted into both ends of the strain gauge, the mounting seat is provided at the bottom of the limit sleeve, two sets of connecting screws are respectively provided at both ends of the strain gauge, and simultaneously connect the limit sleeve, the strain gauge and the mounting seat, each of the mounting seats is provided with two circles of upper and lower recesses on the side wall, the limit frame is a long straight rod body, and both ends are provided with C-shaped claws facing the same side, and the two limit frames are on different sides, and are respectively connected with the recesses of the two mounting seats at different heights.

[0003] When the stress release method is used to evaluate the health status of in-service concrete structures, inaccurate measurement results may occur due to inconsistent installation conditions.

[0004] However, when using strain gauges for detection, two strain gauges are generally used for detection, and the installation positions of the strain gauges should be kept consistent. If the two strain gauges are located in different positions, it is easy to affect the detection results, resulting in a decrease in the accuracy of the detection data. This solution is inconvenient for the installation position of the strain gauge. Utility Model Content

[0005] In order to address the deficiencies in the prior art, the utility model provides a measuring device for assessing the safety status of concrete structures, which solves the problem that two strain gauges are generally used for detection, and the strain gauges should be installed in consistent positions. If the two strain gauges are located in different positions, it is easy to affect the detection results, resulting in a decrease in the accuracy of the detection data.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a measuring device for evaluating the safety status of a concrete structure, comprising a positioning plate, strain gauges are arranged on both sides of the surface of the positioning plate, a slide groove is opened in the middle of the surface of the positioning plate, a clamping block is slidably connected inside the slide groove, mounting frames are fixedly installed on both sides of the middle of the surface of the positioning plate, and a clamping assembly is arranged on the surface of the mounting frame;

[0007] The clamping assembly includes a threaded barrel fixedly mounted in the middle of the mounting frame surface, wherein the internal thread of the threaded barrel is penetrated by a threaded rod, the bottom of the threaded rod is rotatably connected to an extrusion block, and telescopic rods are provided on both sides of the top of the extrusion block.

[0008] In a specific embodiment, two opposite sides of the clamping block are both arranged as inclined surfaces, and two sides of the extrusion block are in contact with the inclined surfaces arranged on the clamping block.

[0009] In a specific embodiment, a clamping groove is formed on the surface of the clamping block, the size of the clamping groove is matched with the diameter of the strain gauge, and the clamping groove is in contact with the strain gauge.

[0010] In a specific embodiment, a sliding block is fixedly installed at the bottom of the clamping block, the size of the sliding block is matched with the size of the sliding groove, and the clamping block slides inside the sliding groove through the sliding block.

[0011] In a specific embodiment, resistance blocks are fixedly installed on two opposite sides of the mounting frame, the size of the resistance blocks matches the size of the strain gauge, and the surface of the resistance blocks contacts the two sides of the strain gauge.

[0012] In a specific embodiment, the bottom of the telescopic rod is connected to two sides of the surface of the extrusion block, and the top of the telescopic rod is connected to two sides inside the mounting frame.

[0013] Compared with the prior art, the utility model provides a measuring device for assessing the safety status of concrete structures, which has the following beneficial effects:

[0014] In the technical solution disclosed by the utility model, a clamping block, a mounting frame and a clamping assembly are used in coordination. During use, a person rotates the threaded rod. When the threaded rod rotates, the extrusion block is driven to move downward, and the clamping block is squeezed by the extrusion block, and the clamping block clamps and positions the strain gauge.

[0015] Through the clamping assembly provided by the utility model, during use, a person will rotate the threaded rod through the threaded barrel, and when the threaded rod is rotated, the extrusion block will be driven to move downward through the mounting frame, and when the extrusion block moves downward, the telescopic rod will limit the extrusion block, and during the limiting process, the extrusion block will squeeze the clamping block, and the clamping block will move to both sides after being squeezed, and the clamping block is arranged relative to the resistance block inside the mounting frame to clamp and position the strain gauge, thereby playing a role in synchronously positioning the two strain gauges. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping block of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0021] In the figure: 1, positioning plate; 2, strain gauge; 3, clamping block; 4, mounting frame; 5, clamping assembly; 51, threaded cylinder; 52, threaded rod; 53, extrusion block; 54, telescopic rod. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Figure 1-Figure 4 An embodiment of the utility model is a measuring device for assessing the safety status of a concrete structure, comprising a positioning plate 1, strain gauges 2 are provided on both sides of the surface of the positioning plate 1, a slide groove is provided in the middle of the surface of the positioning plate 1, a clamping block 3 is slidably connected inside the slide groove, mounting frames 4 are fixedly installed on both sides of the middle of the surface of the positioning plate 1, and a clamping assembly 5 is provided on the surface of the mounting frame 4.

[0024] The specific problem addressed by this specific embodiment is to solve the problem that when the strain gauge 2 is used for detection, two strain gauges 2 are generally used for detection, and the installation of the strain gauge 2 should keep the same position. If the positions of the two strain gauges 2 are different, it is easy to affect the detection result, resulting in a decrease in the accuracy of the detection data. The utility model uses the coordinated use of the clamping block 3, the mounting frame 4 and the clamping assembly 5. During use, the personnel rotates the threaded rod 52. When the threaded rod 52 rotates, it will drive the extrusion block 53 to move downward, and the clamping block 3 is squeezed by the extrusion block 53, and the clamping block 3 clamps and positions the strain gauge 2.

[0025] The clamping assembly 5 includes a threaded cylinder 51 fixedly mounted in the middle of the surface of the mounting frame 4. The threaded cylinder 51 has an internal thread through which a threaded rod 52 is passed. The bottom of the threaded rod 52 is rotatably connected to an extrusion block 53. Both sides of the top of the extrusion block 53 are provided with telescopic rods 54. The opposite sides of the clamping block 3 are provided with inclined surfaces. Both sides of the extrusion block 53 are in contact with the inclined surfaces provided on the clamping block 3. The bottom of the telescopic rod 54 is connected to both sides of the surface of the extrusion block 53. The top of the telescopic rod 54 is connected to both sides of the inside of the mounting frame 4. In this specific embodiment, during use, In the process, personnel will rotate the threaded rod 52 through the threaded cylinder 51. When the threaded rod 52 rotates, it will drive the extrusion block 53 to move downward through the mounting frame 4. When the extrusion block 53 moves downward, the telescopic rod 54 will limit the extrusion block 53. During the limiting process, the extrusion block 53 will squeeze the clamping block 3. After being squeezed, the clamping block 3 will move to both sides. The clamping block 3 is arranged relative to the resistance block inside the mounting frame 4 to clamp and position the strain gauge 2, thereby playing the role of synchronously positioning the two strain gauges 2.

[0026] In this specific embodiment, a clamping groove is provided on the surface of the clamping block 3, the size of which matches the diameter of the strain gauge 2, and the clamping groove is in contact with the strain gauge 2. A sliding block is fixedly installed on the bottom of the clamping block 3, and the size of the sliding block matches the size of the sliding groove. The clamping block 3 slides inside the sliding groove through the sliding block. Resistance blocks are fixedly installed on the opposite sides of the mounting frame 4, and the size of the resistance blocks matches the size of the strain gauge 2, and the surface of the resistance blocks is in contact with the two sides of the strain gauge 2.

[0027] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0028] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring device for assessing the safety status of a concrete structure, comprising a positioning plate (1), characterized in that: Strain gauges (2) are provided on both sides of the surface of the positioning plate (1), a slide groove is provided in the middle of the surface of the positioning plate (1), a clamping block (3) is slidably connected inside the slide groove, mounting frames (4) are fixedly installed on both sides of the middle of the surface of the positioning plate (1), and a clamping assembly (5) is provided on the surface of the mounting frame (4); The clamping assembly (5) comprises a threaded barrel (51) fixedly mounted on the middle part of the surface of the mounting frame (4), wherein the internal thread of the threaded barrel (51) is penetrated by a threaded rod (52), the bottom of the threaded rod (52) is rotatably connected to an extrusion block (53), and telescopic rods (54) are provided on both sides of the top of the extrusion block (53).

2. The measuring device for evaluating the safety status of concrete structures according to claim 1, characterized in that: The two opposite sides of the clamping block (3) are both arranged as inclined surfaces, and the two sides of the extrusion block (53) are in contact with the inclined surfaces arranged on the clamping block (3).

3. The measuring device for evaluating the safety status of concrete structures according to claim 1, characterized in that: A clamping groove is provided on the surface of the clamping block (3), the size of the clamping groove is matched to the diameter of the strain gauge (2), and the clamping groove and the strain gauge (2) are in contact.

4. The measuring device for evaluating the safety status of concrete structures according to claim 1, characterized in that: A sliding block is fixedly mounted on the bottom of the clamping block (3); the size of the sliding block matches the size of the sliding groove, and the clamping block (3) slides inside the sliding groove via the sliding block.

5. The measuring device for evaluating the safety status of concrete structures according to claim 1, characterized in that: Resistance blocks are fixedly mounted on two opposite sides of the mounting frame (4); the size of the resistance blocks matches the size of the strain gauge (2); and the surface of the resistance blocks contacts the two sides of the strain gauge (2).

6. The measuring device for evaluating the safety status of concrete structures according to claim 1, characterized in that: The bottom of the telescopic rod (54) is connected to two sides of the surface of the extrusion block (53), and the top of the telescopic rod (54) is connected to two sides inside the mounting frame (4).

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