Premixed concrete crack monitoring device

Abstract

The utility model discloses a premixed concrete crack monitoring device, which belongs to the technical field of concrete detection, comprises a bracket assembly, and is characterized in that an angle adjusting assembly, a limiting assembly and a driving assembly are mutually matched; the device can realize 180-degree rotation detection of cylindrical premixed concrete by driving ultrasonic drive and electronic components thereof, the surface of the cylindrical structure of the premixed concrete is a three-dimensional circumferential surface, cracks, cavities or other defects in the concrete may appear at any position of a cylinder, detection is performed only from a single direction, and detection blind areas, such as detection blind areas, are generated. For a longitudinal crack on the side surface of the cylinder, if detected only from one angle, the crack may not be found when the crack is located on the back surface of the detection device. And detection is carried out around the cylinder, so that cracks and defects in all directions of the cylinder can be found.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete detection technical field more specifically, relate to a kind of premixed concrete crack monitoring device. BACKGROUND

[0002] Premixed concrete crack monitoring device is a kind of equipment for monitoring the crack generation and development of the structure such as beam, slab, column of building, road, bridge etc. during construction process and use stage, it can obtain the relevant information of concrete crack in time and accurately, including the width, length, depth, trend of crack etc. parameter, the propagation speed and attenuation degree of ultrasonic wave in concrete are related to the compactness and internal structure of concrete, when concrete appears crack, the propagation path of ultrasonic wave will change, the propagation speed will reduce, and the attenuation degree will increase. By emitting and receiving ultrasonic wave, and analyzing the change of its propagation characteristic, the existence and relevant information of crack can be detected, for the concrete dam of large-scale water conservancy project, using ultrasonic wave monitoring device, the internal structure of dam concrete can be scanned regularly, to judge whether crack is generated and the development degree of crack.

[0003] Chinese patent publication number: CN221147492U provides a concrete crack monitoring device, which is fixed more firmly by setting the support to fix the vertical rod. When the crack increases or decreases, the movement occurs on both sides of the crack, which facilitates the movement of the vertical rod driven by the support. The bottom surface of the fixing box and the bottom surface of the support are fixed on the concrete by nailing, and the fixing box and the support are firmly fixed on the concrete by nailing, that is, on both sides of the concrete crack, so that the fixed grid and the movable grid fixed on the fixing box and the support are more stable, so that the displacement amount of the detected crack is more accurate. However, the premixed concrete crack monitoring device is a kind of equipment for monitoring the crack generation and development of the structure such as beam, slab, column of building, road, bridge etc. during construction process and use stage, and when facing the existing cylindrical premixed concrete, detection is more troublesome, and the detection device often needs to be moved several times to complete the detection.

[0004] Therefore, a premixed concrete crack monitoring device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a premixed concrete crack monitoring device, which can realize 180-degree rotation detection of columnar premixed concrete by the mutual cooperation of angle adjusting assembly, limiting assembly and driving assembly.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] The utility model provides a premixed concrete crack monitoring device, including support assembly, the middle part of support assembly is equipped with angle adjusting assembly, the upper end of angle adjusting assembly is equipped with limiting assembly, the middle part of limiting assembly is equipped with drive assembly, the upper end of drive assembly is equipped with ultrasonic drive and its electronic components,

[0008] The support assembly includes an annular base, and a pair of symmetrical support rods are fixedly connected to the upper end of the annular base.

[0009] Further, the angle adjusting assembly includes an annular rack fixedly connected to the upper end of the pair of support rods, and a fixed block is slidingly connected to the middle part of the annular rack.

[0010] Further, the limiting assembly includes an annular limiting rod fixedly connected to the middle part of the pair of support rods, a limiting block is slidingly connected to the middle part of the annular limiting rod, and the limiting block is fixedly connected to the fixed block.

[0011] Further, the drive assembly includes a drive housing fixedly connected to the middle part of the fixed block, a partition plate is fixedly connected to the inside of the drive housing, the inside of the drive housing is divided into a drive cavity and a mounting cavity by the partition plate, a servo motor is fixedly connected to the inside of the drive cavity, and a worm is fixedly connected to the output end of the servo motor and located in the inside of the mounting cavity.

[0012] Further, a rotating shaft is rotatably connected to the inside of the mounting cavity, a worm wheel and a gear are fixedly connected to the middle part of the rotating shaft, the worm wheel is meshingly connected with the worm, and the gear is meshingly connected with the annular rack.

[0013] Further, the upper end of the drive housing is fixedly connected with the lower end of the ultrasonic drive and its electronic components.

[0014] In summary, the utility model has the following beneficial effects:

[0015] (1) The angle adjusting assembly, the limiting assembly, and the drive assembly are matched with each other, so that the ultrasonic drive and its electronic components can rotate 180 degrees to detect the cylindrical premixed concrete. The surface of the premixed concrete cylinder structure is a three-dimensional circumferential surface, and the cracks, cavities, or other defects in the concrete may appear at any position of the cylinder. If only a single direction is detected, a blind area may be generated. For example, if only one angle is detected, the longitudinal cracks on the side of the cylinder may not be found when the cracks are located at the back of the detection device. However, if the cylinder is detected around, it is like wearing a "detection net" on the cylinder, which can detect the vertical section of the entire concrete column at 180 degrees, so that the cracks and defects at various positions of the cylinder can be found.

[0016] (2) The scheme is surrounded by ultrasonic detection and its electronic components driven, and the ultrasonic detection belongs to the non-destructive testing method, which will not cause damage to the pre-mixed concrete structure, and the structure can still remain intact and continue to use after detection. For the structure that has been built or is under construction, it is very important to detect the quality without affecting the progress of the project and the safety of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram in the embodiment;

[0018] Figure 2 is the overall split structure schematic diagram in the embodiment;

[0019] Figure 3 is the overall structure schematic diagram of the driving assembly in the embodiment;

[0020] Figure 4 is the overall structure schematic diagram of the angle adjusting assembly and the limiting assembly in the embodiment;

[0021] Figure 5 is the cross-section structure schematic diagram of the driving shell in the embodiment;

[0022] Figure 6 is the fixed block and the ring gear connection structure schematic diagram in the embodiment.

[0023] Reference signs in the drawings: 1, support assembly; 2, angle adjusting assembly; 3, limiting assembly; 4, driving assembly; 5, ultrasonic drive and its electronic components; 101, ring base; 102, support rod; 201, fixed block; 202, ring gear; 301, limiting block; 302, ring limiting rod; 401, driving shell; 402, partition plate; 403, servo motor; 404, worm; 405, rotating shaft; 406, worm gear; 407, gear. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail below in combination with the drawings.

[0025] Wherein, same parts are denoted by same reference signs. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0026] Reference Figures 1-6As shown, it is a premixed concrete crack monitoring device in the preferred embodiment of the utility model, including support assembly 1, the middle part of support assembly 1 is equipped with angle adjusting assembly 2, the upper end of angle adjusting assembly 2 is equipped with limiting assembly 3, the middle part of limiting assembly 3 is equipped with drive assembly 4, the upper end of drive assembly 4 is equipped with ultrasonic drive and its electronic components 5;

[0027] Support assembly 1 includes annular base 101, and the upper end of annular base 101 is fixedly connected with a pair of mutually symmetrical support rods 102.

[0028] Referring to Figure 6 As shown, angle adjusting assembly 2 includes annular rack 202 fixedly connected on the upper end of a pair of support rods 102, and the middle part of annular rack 202 is slidably connected with fixed block 201.

[0029] Referring to Figure 6 As shown, limiting assembly 3 includes annular limiting rod 302 fixedly connected in the middle part of a pair of support rods 102, and the middle part of annular limiting rod 302 is slidably connected with limiting block 301, and limiting block 301 is fixedly connected with fixed block 201.

[0030] Referring to Figures 1-5 As shown, drive assembly 4 includes drive housing 401 fixedly connected in the middle part of fixed block 201, drive housing 401 is fixedly connected with partition plate 402 in the inside, and the inside space of drive housing 401 is divided into drive cavity and installation cavity by partition plate 402, servo motor 403 is fixedly connected in the inside of drive cavity, and the output end of servo motor 403 is fixedly connected with worm 404 in the inside of installation cavity.

[0031] Referring to Figures 1-5 As shown, rotating shaft 405 is rotatably connected in the inside of installation cavity, worm wheel 406 and gear 407 are fixedly connected in the middle part of rotating shaft 405, worm wheel 406 is meshingly connected with worm 404, and gear 407 is meshingly connected with annular rack 202.

[0032] Referring to Figures 1-4 As shown, the upper end of drive housing 401 is fixedly connected with the lower end of ultrasonic drive and its electronic components 5.

[0033] Specific implementation process: premixed concrete crack monitoring device is mainly composed of support assembly 1, angle adjusting assembly 2, limiting assembly 3, drive assembly 4 and ultrasonic drive and its electronic components 5, support assembly 1: as the support basis of the whole device, the annular base 101 is placed near the premixed concrete structure at a suitable position, and a pair of mutually symmetrical support rods 102 provides support for the other components on the top, angle adjusting assembly 2: through the fixed connection of the annular rack 202 on the upper end of the pair of support rods 102 and the fixed block 201 slidingly connected in the middle of the annular rack 202, the subsequent angle adjustment provides the basic structure, limiting assembly 3: composed of annular limiting rod 302 fixedly connected in the middle of the pair of support rods 102 and limiting block 301 slidingly connected in the middle of the annular limiting rod 302, and the limiting block 301 is fixedly connected with the fixed block 201 of the angle adjusting assembly 2, which plays a limiting and cooperative role in the movement of related parts, drive assembly 4: drive housing 401 fixedly connected in the middle of fixed block 201 is provided with a partition plate 402, which divides the internal space into drive cavity and mounting cavity, the inside of drive cavity is fixedly connected with servo motor 403, the output end is fixedly connected with worm 404 inside the mounting cavity, the inside of mounting cavity is rotatably connected with rotating shaft 405, the middle is fixedly connected with worm gear 406 and gear 407, worm gear 406 is meshed with worm 404, gear 407 is meshed with annular rack 202, and the upper end of drive housing 401 is fixedly connected with the lower end of ultrasonic drive and its electronic components 5, when the columnar premixed concrete needs to be monitored, first start the device, servo motor 403 starts to work, its output end drives worm 404 to rotate, because worm 404 is meshed with worm gear 406, the rotation of worm 404 will drive worm gear 406 to rotate, worm gear 406 is fixedly connected with rotating shaft 405, so rotating shaft 405 will rotate with worm gear 406, and gear 407 on rotating shaft 405 is meshed with annular rack 202, with the rotation of rotating shaft 405, gear 407 will roll along annular rack 202, because gear 407 is indirectly connected with drive housing 401 through rotating shaft 405 and other components, and drive housing 401 is connected with ultrasonic drive and its electronic components 5 at the upper end, so when gear 407 rolls along annular rack 202, it will drive the whole ultrasonic drive and its electronic components 5 to move in the circumferential direction around the columnar premixed concrete, realize the adjustment of angle, prepare for the subsequent comprehensive detection, under the synergistic effect of angle adjusting assembly 2 and drive assembly 4, ultrasonic drive and its electronic components 5 can realize 180 degree rotation detection of columnar premixed concrete, in this process, ultrasonic drive and its electronic components 5 will continuously emit ultrasonic signals and receive the reflected signals, the propagation speed and attenuation degree of ultrasonic wave in concrete are related to the compactness and internal structure of concrete, when the concrete appears cracks, the propagation path of ultrasonic wave will change, the propagation speed will decrease,The attenuation degree will increase, and the existence of the crack, the cavity or other defects in the concrete and the related information can be detected by analyzing the change of the propagation characteristics of the emitted and received ultrasonic signals, and the limiting assembly 3 plays an important cooperative and limiting role in the whole detection process, the limiting block 301 slides on the annular limiting rod 302, since it is fixedly connected with the fixed block 201 of the angle adjusting assembly 2, so the movement track of the related components is stable and meets the design requirements when the ultrasonic drive and its electronic components 5 perform the circumferential movement, it limits the displacement of the fixed block 201 and other components in the direction perpendicular to the annular limiting rod 302, and ensures the stability and accuracy of the whole device when it detects the cylindrical ready-mixed concrete, so that the ultrasonic drive and its electronic components 5 can accurately detect each direction of the cylindrical ready-mixed concrete, and the inaccurate detection result caused by the shaking of the device or the displacement of the components is avoided,

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and the utility model will have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A ready-mixed concrete crack monitoring device, comprising a bracket assembly (1), characterized in that: An angle adjustment assembly (2) is provided in the middle of the bracket assembly (1), a limit assembly (3) is provided at the upper end of the angle adjustment assembly (2), a driving assembly (4) is provided in the middle of the limit assembly (3), and an ultrasonic drive and its electronic components (5) are provided at the upper end of the driving assembly (4); The support assembly (1) comprises an annular base (101), and a pair of mutually symmetrical support rods (102) are fixedly connected to the upper end of the annular base (101).

2. The ready-mixed concrete crack monitoring device according to claim 1, characterized in that: The angle adjustment assembly (2) comprises an annular rack (202) fixedly connected to the upper ends of a pair of support rods (102), and a fixed block (201) is slidably connected to the middle portion of the annular rack (202).

3. The ready-mixed concrete crack monitoring device according to claim 1, characterized in that: The limiting assembly (3) comprises an annular limiting rod (302) fixedly connected to the middle of a pair of support rods (102); the middle of the annular limiting rod (302) is slidably connected to a limiting block (301); and the limiting block (301) is fixedly connected to a fixed block (201).

4. The ready-mixed concrete crack monitoring device according to claim 1, characterized in that: The drive assembly (4) comprises a drive housing (401) fixedly connected to the middle of the fixed block (201); a partition plate (402) is fixedly connected to the interior of the drive housing (401); the partition plate (402) divides the interior space of the drive housing (401) into a drive cavity and a mounting cavity; a servo motor (403) is fixedly connected to the interior of the drive cavity; and a worm (404) is fixedly connected to the output end of the servo motor (403) and located inside the mounting cavity.

5. The ready-mixed concrete crack monitoring device according to claim 4, characterized in that: The interior of the installation cavity is rotatably connected to a rotating shaft (405), the middle of the rotating shaft (405) is fixedly connected to a worm wheel (406) and a gear (407), the worm wheel (406) is meshedly connected to the worm (404), and the gear (407) is meshedly connected to the annular rack (202).

6. The ready-mixed concrete crack monitoring device according to claim 4, characterized in that: The upper end of the driving housing (401) is fixedly connected to the lower end of the ultrasonic driver and its electronic components (5).

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