Fixed crack observation device

Abstract

The utility model discloses a fixed crack observation device, and belongs to the field of crack observation. The fixed crack observation device comprises a crack width measurement module and a crack slab staggering measurement module which are arranged on the two sides of a crack to be measured respectively. The crack width measuring module comprises a first base, a pointer base is vertically arranged on the first base, a pointer sleeve is vertically arranged on the pointer base, a spring and a pointer are arranged in the pointer sleeve, the tail end of the spring is in contact with the tail end of the pointer, and scales are arranged on the pointer; the crack slab staggering measurement module comprises a second base, a side observation plate is vertically arranged on the second base, and a rectangular plane coordinate system is arranged on the side observation plate. The device is used for accurately evaluating the change of the crack and realizing the measurement of slab staggering and width of the crack.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the crack observation field relates to a fixed crack observation device. BACKGROUND

[0002] At present, in the crack observation process on site, steel ruler is usually used to directly measure the crack, and the inspector needs to measure with the scale during measurement. Since the measuring tool and the fixed point are prone to deviation, the crack spacing measurement changes, the crack change evaluation accuracy is reduced, and the disease development is difficult to judge.

[0003] The prior art such as CN114136176A discloses a measurable wall crack device, which comprises a clamping and measuring part and a measuring part. The clamping part comprises a limiting unit and a connecting part connected with the limiting unit. One end of the connecting part is fixedly connected with the limiting unit, and the other end is fixedly connected with the measured wall. The connecting part comprises a fixed mark. The measuring part comprises a scale capable of measuring length and a connecting part two. One end of the connecting part two is fixedly connected with the scale, and the other end is fixedly connected with the measured wall. The measurable wall crack device is fixedly connected with the two sides of the wall crack through the clamping part and the measuring part. When the crack width of different periods needs to be read, only the scale value of the initial crack width and the scale value of the width of different periods need to be recorded, which is convenient for measuring the crack width and observing the crack width change, and also reduces the cost of measuring the crack width.

[0004] However, the width reading measurement of the above-mentioned measurable wall crack device is not accurate, and only the crack width can be observed, and the crack displacement change cannot be obtained. INVENTION CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a fixed crack observation device, which can accurately evaluate the crack change and realize the measurement of the crack displacement and width.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a fixed crack observation device, which comprises crack width measurement modules and crack displacement measurement modules respectively arranged on the two sides of the crack to be measured. The crack width measurement module comprises a first base, a pointer base is vertically arranged on the first base, a pointer sleeve is vertically arranged on the pointer base, a spring and a pointer are arranged in the pointer sleeve, the tail end of the spring is in contact with the tail end of the pointer, and a scale is arranged on the pointer. The crack displacement measurement module comprises a second base, a side observation plate is vertically arranged on the second base, and a plane rectangular coordinate system is arranged on the side observation plate.

[0008] In an embodiment, the origin of the plane rectangular coordinate system is at the lower left corner of the side observation plate.

[0009] In an embodiment, the tip of the pointer is in contact with the side observation plate when installed, and the spring in contact with the pointer is compressed under force.

[0010] In an embodiment, the first end of the spring is in contact with the pointer base.

[0011] In an embodiment, the pointer is perpendicular to the crack.

[0012] In an embodiment, the pointer serves as the Z axis, and forms a space rectangular coordinate system with the plane rectangular coordinate system provided on the side observation plate.

[0013] In an embodiment, the pointer base and the side observation plate are parallel.

[0014] In an embodiment, the first base and the second base are parallel.

[0015] In an embodiment, a plurality of mounting screw holes are provided on the first base and the second base, and the mounting screw holes are used for fixing.

[0016] In an embodiment, the plurality of mounting screw holes are provided on the left and right sides of the pointer base and the side observation plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a fixed type crack observation device, the fixed type crack observation device is by two parts, crack width measurement module is by first base, pointer base, pointer sleeve, pointer, spring, crack fault measurement module is by second base, side observation plate is composed, has drawn plane coordinate system on the side observation plate, when using, installs two modules in crack both sides, equivalent to has established an independent space rectangular coordinate system along the vertical crack direction, namely X axis, Y axis, Z axis, has realized the three -dimensional observation of crack, can realize crack's fault and width measurement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1A side view of the fixed crack observation device of the utility model;

[0020] Figure 2 A plan view of the fixed crack observation device of the utility model;

[0021] Figure 3 A plan view of the pointer of the utility model;

[0022] Figure 4 A plane coordinate system schematic view of an embodiment on the side observation plate of the utility model;

[0023] Wherein: 1- first base; 2- second base; 3- pointer base; 4- side observation plate; 5- pointer sleeve; 6- spring; 7- pointer; 8- scale. DETAILED DESCRIPTION

[0024] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0025] It should be noted that the terms "first", "second" and the like in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] The utility model will be further described in detail below in conjunction with the drawings:

[0027] Referring to Figure 1 And Figure 2 The utility model provides a kind of fixed crack observation device, relative arrangement crack width measurement module and crack fault measurement module are designed, crack width measurement module and crack fault measurement module are respectively arranged at the two ends of crack, realize the multidimensional accurate observation to crack.

[0028] Specifically:

[0029] The crack width measurement module is based on the first base 1, the first base 1 is vertically installed with the pointer base 3, the pointer base 3 is connected with the pointer sleeve 5, and the inside of the pointer sleeve 5 is provided with the combined structure of the spring 6 and the pointer 7. The tail end of the spring 6 is in close contact with the pointer 7, so that the pointer 7 can move flexibly and stably when subjected to external force. The pointer 7 is engraved with a scale 8 as shown in Figure 1 and 3 The design makes the change of the crack width can be directly read through the moving amount of the pointer 7, which is intuitive and accurate. Not only improves the measurement accuracy, but also makes the device sensitive to capture the small changes of the crack width, and provides reliable data support for the monitoring of the crack.

[0030] Referring to Figure 1 , the side surface of the crack width measurement module is in the shape of a Chinese character.

[0031] The crack displacement measurement module is based on the second base 2, and the side surface observation plate 4 is vertically fixed on the second base 2. The surface of the side surface observation plate 4 is drawn with a plane rectangular coordinate system, which provides an accurate reference for the measurement of the crack displacement. By observing the moving position of the pointer 7 on the side surface observation plate 4, the displacement of the crack can be accurately calculated. Such a setting not only simplifies the process of displacement measurement, but also improves the accuracy and efficiency of measurement.

[0032] The tip of the pointer 7 is in contact with the side surface observation plate 4 during installation, the spring 6 in contact with the pointer 7 is compressed under stress, the tail end of the spring 6 is in contact with the tail end of the pointer 7, which is convenient for reading the initial scale and subsequent width change, the pointer 7 is perpendicular to the crack, and the pointer 7 serves as the Z axis, and forms a space rectangular coordinate system with the plane rectangular coordinate system arranged on the side surface observation plate 4.

[0033] The pointer base 3 and the side surface observation plate 4 are parallel, and the first base 1 and the second base 2 are parallel.

[0034] Further, a plurality of mounting screw holes are formed on the first base 1 and the second base 2, and the mounting screw holes are used for fixing. The plurality of mounting screw holes are formed on the left and right sides of the pointer base 3 and the side surface observation plate 4.

[0035] Further, the head end of the spring 6 can be in contact with the pointer base 3.

[0036] In summary, the above fixed crack observation device realizes the simultaneous and accurate measurement of the crack width and displacement by combining the crack width measurement module and the crack displacement measurement module, and the cooperation of the pointer 7, the plane rectangular coordinate system and the spring 6 in each module.

[0037] In specific implementation, as Figure 4As shown, the origin of the plane rectangular coordinate system is at the lower left corner of the side observation plate 4.

[0038] Embodiment

[0039] The embodiment provides a fixed crack observation device, which comprises a crack width measuring module and a crack dislocation measuring module arranged oppositely. The crack width measuring module of the crack observation device comprises a first base 1, a pointer base 3, a pointer sleeve 5, a pointer 7 and a spring 6.

[0040] The pointer base 3 is vertically installed on the first base 1, the pointer sleeve 5 is vertically installed on the pointer base 3 and located at the center of the pointer base 3, and the spring 6 and the pointer 7 are installed in the pointer sleeve 5 and can be pressed to extrude the spring 6.

[0041] The crack dislocation measuring module comprises a second base 2 and a side observation plate 4, the side observation plate 4 is vertically installed on the second base 2, and a plane rectangular coordinate system of X and Y axes is drawn on the side observation plate 4.

[0042] In use, the crack width measuring module and the crack dislocation measuring module are installed on two sides of a crack by expansion bolts respectively, and the pointer 7 is slightly extruded to the spring 6 during installation.

[0043] The scale 8 on the pointer 7 is the z-axis, the coordinates of the plane rectangular coordinate system are the x-axis and the y-axis, the initial coordinates are read and recorded during first installation, if the crack changes, the corresponding position of the pointer 7 changes, the changed coordinates are recorded, and the change result of the crack can be analyzed by comparing the initial coordinates.

[0044] When the crack width changes, the pointer 7 moves, the width change of the crack is measured by reading and comparing the relative change of the scale on the pointer 7 and the front end of the pointer sleeve 5.

[0045] The prior art mainly focuses on the measurement of crack width and ignores the important parameter of crack dislocation. The crack width measuring module and the crack dislocation measuring module are integrated, the synchronous and accurate measurement of the crack width and the dislocation is realized, and more comprehensive crack evaluation information is provided. The crack width measuring module of the utility model adopts the cooperation mechanism of the pointer 7 and the spring 6, the stable contact of the pointer and the side observation plate 4 is maintained through the elastic force of the spring 6. When the crack width changes, the pointer 7 moves, the change amount is obtained by reading the scale 8. Meanwhile, the crack dislocation measuring module can measure the dislocation amount of the crack by using the cooperation of the plane rectangular coordinate system on the side observation plate 4 and the pointer 7.

[0046] The utility model discloses a pointer 7 is combined as Z axle with the plane rectangular coordinate system (X axle, Y axle) on the side surface observation plate 4, forms an independent space rectangular coordinate system. Make the device can measure the change of crack in three directions simultaneously, realized the three -dimensional observation of crack, improved the overall and accuracy of measurement.

[0047] The device of the utility model adopts modular design, and the crack width measurement module and the crack offset measurement module are relatively arranged, which can be conveniently installed on the two sides of the crack. Meanwhile, a plurality of mounting screw holes are formed on the first base 1 and the second base 2, so that the device can be fixed on the position to be measured. This design makes the installation, debugging and maintenance of the device more convenient.

[0048] Through the device of the utility model, the width and offset of the crack can be measured simultaneously, and a plurality of different measuring tools or methods are not needed. This greatly improves the monitoring efficiency and reduces the consumption of manpower and time. Moreover, the width and offset of the crack are important indexes for evaluating the structural safety. The device of the utility model can accurately measure the two parameters, and provides reliable data support for the structural safety evaluation. This helps to discover and handle potential structural safety problems in time, and ensures the stability and safety of the structure.

[0049] The above content is only for describing the technical idea of the utility model, and cannot limit the protection scope of the utility model. Any modification made according to the technical idea of the utility model on the basis of the technical scheme falls within the protection scope of the utility model claim.

Claims

1. A fixed crack observation device characterized by comprising: The utility model provides a crack width measurement module and a crack dislocation measurement module are arranged on the two sides of the crack to be measured respectively, the crack width measurement module comprises a first base (1), a pointer base (3) is vertically arranged on the first base (1), a pointer sleeve (5) is vertically arranged on the pointer base (3), a spring (6) and a pointer (7) are arranged in the pointer sleeve (5), the tail end of the spring (6) is in contact with the tail end of the pointer (7), a scale (8) is arranged on the pointer (7), the crack dislocation measurement module comprises a second base (2), a side observation plate (4) is vertically arranged on the second base (2), a plane rectangular coordinate system is arranged on the side observation plate (4).

2. The fixed crack observation device according to claim 1, characterized by The origin of the plane rectangular coordinate system is located at the lower left corner of the side observation plate (4).

3. The fixed crack observation device according to claim 1, characterized by The tip of the pointer (7) is in contact with the side observation plate (4) during installation, and the spring (6) in contact with the pointer (7) is compressed under force.

4. The fixed crack observation device according to claim 3, characterized by The first end of the spring (6) is in contact with the pointer base (3).

5. The fixed crack observation device according to claim 1, characterized by The pointer (7) is perpendicular to the crack.

6. The fixed crack observation device according to claim 1, characterized by The pointer (7) serves as the Z axis and forms a space rectangular coordinate system with the plane rectangular coordinate system arranged on the side observation plate (4).

7. The fixed crack observation device according to claim 1, characterized by The pointer base (3) and the side observation plate (4) are parallel.

8. The fixed crack observation device according to claim 1, characterized by The first base (1) and the second base (2) are parallel.

9. The fixed crack observation device according to claim 1 or 8, characterized by A plurality of mounting screw holes are formed in the first base (1) and the second base (2), and the mounting screw holes are used for fixing.

10. The fixed crack observation device according to claim 9, characterized by The plurality of mounting screw holes are formed on the left and right sides of the pointer base (3) and the side observation plate (4).

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