Building crack forming plate, crack width measurer and crack testing device

Abstract

The utility model relates to the technical field of building cracks, and provides a building crack forming plate, a crack width measurer and a crack testing device.The crack forming plate comprises a first connecting plate, a second connecting plate and a third connecting plate which are connected in a clamped mode, and the crack width measurer comprises a first fixing piece, a supporting piece, a main ruler, an oil scale and a second fixing piece. The crack test device comprises a side wall plate, a connecting frame and a clamping piece, mounting frames are arranged at the two ends of the side wall plate and perpendicular to the surface of the side wall plate, the connecting frame is arranged in the mounting frames, the clamping piece used for clamping the connecting frame is arranged on the outer surfaces of the mounting frames, and a concrete wall is built in the connecting frame. When the concrete wall is built, the crack forming plate is placed to form a crack. The device can be recycled for multiple times, avoids material waste, eliminates the influence of environment and human factors on measurement precision, and is convenient to operate, simple in structure and accurate in measurement.

Description

TECHNICAL FIELD

[0001] The utility model relates to building crack technical field especially, relate to a building crack forming plate, crack width measurer and crack testing device. BACKGROUND

[0002] Active service housing exists cracks of different degrees due to differences in foundation conditions, service time and surrounding environment. The existence of cracks not only has a major impact on the appearance of housing construction, but also may cause certain damage to the structure of housing construction, and even may cause safety accidents, endangering the safety of people's life and property. In addition, with the rapid development of cities, many major engineering construction processes will inevitably be adjacent, underpass, or side through active service buildings. The construction process may have certain impact on the surrounding active service housing, thereby leading to the increase of crack width. Therefore, the expansion monitoring of crack width is very important.

[0003] At present, the main methods for monitoring the expansion of building structure crack width include gypsum cake, paper strip, crack width gauge, vernier caliper and vibrating wire strain gauge. The gypsum cake method and paper strip are directly pasted on the surface of the crack, and the gypsum cake is periodically checked to see if it cracks or the paper strip breaks, so as to simply judge the expansion of the crack, but these two methods cannot quantify the degree of crack width expansion. Although the crack width gauge has high precision, due to its measurement principle, the position of each measurement will be different, and when the edge of the crack measurement point changes, the crack width gauge is difficult to accurately measure the width of the crack, and the repeatability of the measurement data is poor. The vernier caliper has large measurement error due to different human operations. The vibrating wire strain gauge can be directly arranged vertically to the crack at the crack measurement point, thereby realizing real-time monitoring. However, the vibrating wire strain gauge needs power supply and is greatly affected by environmental factors, and is difficult to apply in complex environment, and the installation procedure is relatively complicated. For crack monitoring of active service housing in various construction processes, temporary masonry is usually carried out on site every time, which will cause material waste.

[0004] Therefore, in view of the above problems, a building crack forming plate, crack width measurer and crack testing device are proposed to solve the above problems. INVENTION CONTENTS

[0005] The utility model in view of the prior art's insufficient, development a kind of building crack forming plate, crack width measurer and crack testing device, the utility model can be used repeatedly, avoid material waste, eliminate the influence of environmental and human factors on measurement accuracy, whole device convenient operation structure is simple, measurement is accurate.

[0006] The utility model solves technical problem's technical scheme for: the utility model provides a kind of building crack forming plate, including mutually jointed connecting plate one, connecting plate two and connecting plate three, connecting plate one, connecting plate two and connecting plate three are same height, recess is set on one side surface of connecting plate one and connecting plate two, and the other side surface of connecting plate two is set on one side surface of connecting plate three and recess is adapted to protruding strip.

[0007] A kind of building crack width measurer, it is suitable for the crack formed by the above crack forming plate, including fixed part one, support, main ruler, oil ruler and fixed part two, support is slidably arranged on fixed part one, the end of support away from fixed part one is provided with main ruler, oil ruler is slidably arranged on main ruler, and oil ruler side surface is connected with fixed part two.

[0008] As optimization, fixed part one and fixed part two are all L-shaped, and long hole is arranged on fixed part one and fixed part two, and bolt connected with support and oil ruler is arranged in long hole of fixed part one and fixed part two respectively.

[0009] As optimization, oil ruler is sleeved on main ruler, and one fixed part two is arranged on the both sides of oil ruler.

[0010] A kind of building crack testing device, including the above building crack forming plate and crack width measurer, also include side wall plate, connecting frame and clamping part, mounting frame is provided on the both ends of side wall plate and is vertically arranged on the surface of wall plate, connecting frame is arranged in mounting frame, and clamping part is arranged on the outer surface of mounting frame and is used to clamp connecting frame, connecting frame is built in concrete wall, and crack forming plate is placed to form crack when concrete wall is built.

[0011] As optimization, clamping part includes buckle assembly and elastic assembly, slot is opened on the outer wall of mounting frame, limit slot is opened on the outer wall of the side of connecting frame close to mounting frame, limit slot is adapted to the position of slot, buckle assembly is connected with the outer wall of mounting frame through elastic assembly on the side close to mounting frame, and the front end of buckle assembly is inserted in limit slot through slot.

[0012] As optimization, buckle assembly includes buckle plate, hook and rotating roller, rotating roller is rotatably arranged on the outer wall of mounting frame on the side close to mounting frame of buckle plate, hook is arranged on the front end of buckle plate and is inserted in limit slot through slot.

[0013] As optimization, elastic assembly includes wedge and elastic sheet unit, triangular wedge is arranged on mounting frame, and elastic sheet unit is inserted and connected on wedge, elastic sheet unit includes integrally formed elastic sheet one, elastic sheet two and elastic sheet three, elastic sheet one is obliquely inserted on wedge, elastic sheet two in arc shape is arranged on the front end of elastic sheet one, horizontal elastic sheet three is arranged on the upper end of elastic sheet two, and elastic sheet three abuts against the bottom of buckle plate.

[0014] The effect provided in the content of the utility model is only the effect of the embodiment, and is not all the effects of the utility model, and the above technical scheme has the following advantages or beneficial effects:

[0015] 1. The crack width measurer does not need cables, computers and other auxiliary equipment, is simple to lay, can eliminate the influence of environmental and human factors on the measurement accuracy, can realize automatic measurement of crack width expansion, has high accuracy, and only needs to record values periodically;

[0016] 2. The long hole is arranged, the distance between the measurer and the surface of the measured object can be adjusted according to the site requirement, the defect that the crack width measuring instrument cannot measure the fault crack is made up, and the crack width measuring instrument has a significant advantage in measuring the fault crack;

[0017] 3. The masonry concrete is used to surround the crack forming plate, after crack forming, the connecting plate one, the connecting plate two and the connecting plate three are sequentially slid and connected to remove the connecting plate one, the connecting plate two and the connecting plate three, so that the crack is formed, and subsequent crack width detection is carried out, and the operation is simple and convenient;

[0018] 4. The side wall plate, the connecting frame and the clamping part are prefabricated parts, can be used repeatedly, material waste is avoided, in use, the connecting frame is fixed in the mounting frame of the side wall plate through the clamping part, then the concrete is masonry in the connecting frame, the crack forming plate is placed in the masonry process, the crack width measurer is used for measurement after crack forming, the whole device is convenient to operate, has a simple structure and high measurement accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0020] A building crack forming plate, a crack width measurer and a crack test device

[0021] Figure 1 It is a structural view of the crack width measurer and the crack test device of the utility model;

[0022] Figure 2 It is a structural view of the crack forming plate and the crack test device of the utility model;

[0023] Figure 3 It is a top view of the crack test device of the utility model;

[0024] Figure 4 It is a structure of the utility model Figure 3 It is an enlarged view of A in the utility model;

[0025] Figure 5 It is a structural view of the connecting frame of the utility model;

[0026] Figure 6 It is the structural drawing of the side wall plate of the utility model;

[0027] Figure 7 It is the structural drawing of the crack forming plate of the utility model;

[0028] Figure 8 It is the structural drawing of the crack width measurer of the utility model.

[0029] In the drawing, 1, connecting plate one; 2, connecting plate two; 3, connecting plate three; 4, recess; 5, protruding strip; 6, fixing piece one; 7, supporting piece; 8, main ruler; 9, oil scale; 10, fixing piece two; 11, long hole; 12, bolt; 13, side wall plate; 14, connecting frame; 15, mounting frame; 16, buckle plate; 17, clamping hook; 18, rotating roller; 19, notch; 20, limiting groove; 21, wedge block; 22, elastic piece one; 23, elastic piece two; 24, elastic piece three; 25, concrete wall. DETAILED DESCRIPTION

[0030] In order to clearly illustrate the technical features of the present scheme, the utility model will be described in detail below through specific implementation manners, and in conjunction with the drawings. The following disclosure provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings being discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] As Figure 7 shown, a building crack forming plate, comprising mutually clamped connecting plate one 1, connecting plate two 2 and connecting plate three 3, the connecting plate one 1, the connecting plate two 2 and the connecting plate three 3 are the same height, the connecting plate one 1 and the connecting plate two 2 are both provided with a groove 4 on one side, and the connecting plate three 3 and the other side of the connecting plate two 2 are both provided with a protrusion 5 adapted to the groove 4. The forming plate can select the number of connecting blocks of the connecting plate two 2 when in use to adapt to the crack of different width requirements. When in use, the connecting plate one 1, the connecting plate two 2 and the connecting plate three 3 are clamped together, then the concrete is laid, the concrete surrounds the crack forming plate, after the crack is formed, the connecting plate one 1, the connecting plate two 2 and the connecting plate three 3 are removed in turn by sliding, and the crack is formed, the subsequent crack width detection is carried out, and the operation is simple and convenient.

[0032] As Figure 1 and Figure 8 shown, a building crack width measurer suitable for the crack formed by the crack forming plate, comprising a fixing part one 6, a support part 7, a main ruler 8, an oil ruler 9 and a fixing part two 10, the support part 7 is slidably arranged on the fixing part one 6, the support part 7 is provided with the main ruler 8 at the end away from the fixing part one 6, the oil ruler 9 is slidably arranged on the main ruler 8, and the oil ruler 9 is connected with the fixing part two 10 on the side.

[0033] The fixing part one 6 and the fixing part two 10 are both L-shaped, and the fixing part one 6 and the fixing part two 10 are both provided with a long hole 11, and the long hole 11 of the fixing part one 6 and the fixing part two 10 is respectively provided with a bolt 12 connected with the support part 7 and the oil ruler 9.

[0034] The oil ruler 9 is sleeved on the main ruler 8, and one fixing part two 10 is arranged on each side of the oil ruler 9. The crack width measurer does not need cables, computers and other auxiliary equipment, and the layout is simple, which can eliminate the influence of environmental and human factors on the measurement accuracy; at the same time, the automatic measurement of the crack width expansion can be realized, the precision is high, and only the value recorded by human being is needed; by setting the long hole 11, the distance between the measurer and the surface of the measured object can be adjusted according to the site requirements, which makes up for the defect that the measurement width instrument cannot measure the fault crack, and has a significant advantage in measuring the fault crack.

[0035] Measurement steps:

[0036] (1) Select the crack width monitoring point, and lay out perpendicular to the crack, and mark the monitoring point of the crack measurement;

[0037] (2) Apply adhesive near the measured crack measurement calibration point;

[0038] (3) Align the measuring device end fixing part 6 with the monitoring point on one side of the measured crack, align the fixing part 2 10 with the monitoring point on the other side of the measured crack, and extrude the fixing part 1 6 and the fixing part 2 10. Wait for the adhesive to solidify to fix it;

[0039] (4) Connect the support part 7 with the fixing part 1 6 by using the bolt 12, and adjust the distance between the support part 7 and the surface of the measured object along the long hole 11 according to the fault condition of the crack measurement;

[0040] (5) Connect the vernier 9 with the fixing part 2 10 on both sides by using the bolt 12, and adjust the height of the vernier 9 with the surface of the measured object along the long hole 11 according to the height of the support part 7 from the surface of the measured object;

[0041] (6) Read the initial value;

[0042] (7) Manually read the record on site regularly.

[0043] As shown in Figures 1-6 A building crack testing device, comprising the above building crack forming plate and crack width measuring device, further comprising a side wall plate 13, a connecting frame 14 and a clamping part, the two ends of the side wall plate 13 are provided with mounting frames 15 perpendicular to the surface of the side wall plate 13, the mounting frames 15 are provided with the connecting frame 14, the outer surface of the mounting frame 15 is provided with the clamping part for clamping the connecting frame 14, and the connecting frame 14 is built with a concrete wall 25, and the crack forming plate is placed during the building of the concrete wall 25 to form a crack. The side wall plate 13, the connecting frame 14 and the clamping part are prefabricated parts, which can be used repeatedly to avoid material waste. When in use, the connecting frame 14 is fixed in the mounting frame 15 of the side wall plate 13 through the clamping part, and then the concrete is built in the connecting frame 14. The crack forming plate is placed during the building process, and the crack width measuring device is used to measure the crack after the crack is formed. The whole device is convenient to operate, simple in structure and accurate in measurement.

[0044] In this embodiment, the clamping part includes a buckle plate assembly and an elastic assembly, a notch 19 is formed in the outer wall of the mounting frame 15, a limiting groove 20 is formed in the outer wall of the connecting frame 14 close to the mounting frame 15, the limiting groove 20 is adapted to the position of the notch 19, the buckle plate assembly is connected to the outer wall of the mounting frame 15 through the elastic assembly close to the mounting frame 15, and the front end of the buckle plate assembly is inserted into the limiting groove 20 through the notch 19.

[0045] The buckle plate assembly includes a buckle plate 16, a hook 17 and a rotating roller 18, the rotating roller 18 is arranged on the outer wall of the mounting frame 15 close to the mounting frame 15, the hook 17 is arranged at the front end of the buckle plate 16, and the hook 17 is inserted into the limiting groove 20 through the notch 19.

[0046] The elastic assembly comprises the wedge 21 and the elastic sheet unit, the triangular wedge 21 is arranged on the mounting frame 15, the elastic sheet unit is inserted and arranged on the wedge 21, the elastic sheet unit comprises integrally formed elastic sheet one 22, elastic sheet two 23 and elastic sheet three 24, the elastic sheet one 22 is obliquely inserted on the wedge 21, the elastic sheet two 23 in the form of a circular arc is arranged at the front end of the elastic sheet one 22, the elastic sheet three 24 in the horizontal direction is arranged at the upper end of the elastic sheet two 23, and the elastic sheet three 24 abuts against the bottom of the buckle plate 16.When the fixed connection frame 14 is connected, firstly, the buckle plate 16 is pressed, the elastic sheet unit is compressed, the clamping hook 17 is outside the slot 19, then the connection frame 14 is placed into the mounting frame 15, the limiting groove 20 of the connection frame 14 is adapted to the position of the slot 19 of the mounting frame 15, then the buckle plate 16 is released, and the clamping hook 17 is inserted into the limiting groove 20.

[0047] Although the specific embodiments of the utility model are described above in combination with the drawings, it is not a limitation on the protection scope of the utility model, various modifications or deformations made by the person skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A building crack form board, characterized by: It includes mutually clamped connecting plate one (1), connecting plate two (2) and connecting plate three (3), connecting plate one (1), connecting plate two (2) and connecting plate three (3) are the same height, one side of connecting plate one (1) and connecting plate two (2) is provided with a groove (4) horizontally, one side of connecting plate three (3) and the other side of connecting plate two (2) are provided with a protrusion (5) matched with the groove (4).

2. A building crack width measuring device for a crack formed by the crack forming plate according to claim 1, characterized by: It includes fixed part one (6), support part (7), main ruler (8), oil scale (9) and fixed part two (10), the support part (7) is slidably arranged on the fixed part one (6), the end of the support part (7) away from the fixed part one (6) is provided with the main ruler (8), the oil scale (9) is slidably arranged on the main ruler (8), and the oil scale (9) is connected with the fixed part two (10) on the side.

3. The building crack width measurer according to claim 2, characterized by: The fixed part one (6) and the fixed part two (10) are both L-shaped, and the long hole (11) is arranged on the fixed part one (6) and the fixed part two (10), and the bolt (12) connected with the support part (7) and the oil scale (9) is arranged in the long hole (11) of the fixed part one (6) and the fixed part two (10).

4. The building crack width measurer according to claim 3, characterized by: The oil scale (9) is sleeved on the main ruler (8), and one fixed part two (10) is arranged on each side of the oil scale (9).

5. A building crack testing apparatus comprising the building crack forming plate of claim 1 and the crack width measurer of any one of claims 2 to 4, characterized in that: It also includes a side wall plate (13), a connecting frame (14) and a clamping part, the two end portions of the side wall plate (13) are provided with mounting frames (15) perpendicular to the surface of the side wall plate (13), the mounting frames (15) are provided with the connecting frame (14) inside, the outer surface of the mounting frames (15) is provided with the clamping part for clamping the connecting frame (14), and the connecting frame (14) is built in the concrete wall body (25), and the concrete wall body (25) is built in the crack forming plate to form a crack.

6. The building crack testing apparatus of claim 5, wherein: The clamping part includes a buckle plate assembly and an elastic assembly, the outer wall of the mounting frame (15) is provided with a slot (19), the outer wall of the side of the connecting frame (14) close to the mounting frame (15) is provided with a limiting slot (20), the limiting slot (20) is matched with the slot (19) in position, the side of the buckle plate assembly close to the mounting frame (15) is connected with the outer wall of the mounting frame (15) through the elastic assembly, and the front end of the buckle plate assembly is inserted into the limiting slot (20) through the slot (19).

7. The building crack testing apparatus of claim 6, wherein: The buckle plate assembly includes a buckle plate (16), a hook (17) and a rotating roller (18), the side of the buckle plate (16) close to the mounting frame (15) is provided with the rotating roller (18), the rotating roller (18) is rotatably arranged on the outer wall of the mounting frame (15), the front end of the buckle plate (16) is provided with the hook (17), and the hook (17) is inserted into the limiting slot (20) through the slot (19).

8. The building crack testing apparatus of claim 7, wherein: The elastic assembly includes a wedge block (21) and an elastic sheet unit, the mounting frame (15) is provided with a triangular wedge block (21), the wedge block (21) is provided with the elastic sheet unit, the elastic sheet unit includes integrally formed elastic sheet one (22), elastic sheet two (23) and elastic sheet three (24), the elastic sheet one (22) is obliquely inserted into the wedge block (21), the front end of the elastic sheet one (22) is provided with the elastic sheet two (23) in the shape of a circular arc, the upper end of the elastic sheet two (23) is provided with the elastic sheet three (24) in the shape of a horizontal line, and the elastic sheet three (24) abuts against the bottom of the buckle plate (16).

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