Concrete crack detection device for building engineering construction

Abstract

The utility model discloses a concrete crack detection device for building engineering construction in the technical field of concrete detection, which comprises a base body, a lifting mechanism is arranged above the base body, a detection mechanism is arranged above the lifting mechanism, a pneumatic push rod body is fixedly arranged at the upper end of a support plate, and the pneumatic push rod body is fixedly connected with the support plate. The transmission end of the pneumatic push rod body is fixedly connected with a bearing frame, the transmission end of the first driving motor is fixedly provided with a first driving rod, the outer side of the first driving rod is provided with a first displacement belt body, and the concrete crack detection device for building engineering construction is composed of a base body, a lifting mechanism and a detection mechanism. The position of the transducer is automatically adjusted through the linear displacement driving structure, a traditional manual adjusting mode is replaced, accurate distance adjusting operation is achieved, multiple sets of detection data can be measured, the concrete crack detection efficiency and accuracy are effectively improved, meanwhile, the device further supports mark cross-joint measurement and mark non-cross-joint measurement, and the device is suitable for large-scale popularization and application. And the accuracy of the detection data is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a concrete crack detection device for construction engineering. Background Art

[0002] Concrete is an artificial stone material formed by mixing aggregates such as cement, sand, gravel and water in a certain proportion, adding necessary admixtures and mineral admixtures, and then mixing, pouring, curing and hardening. As an important building material, concrete plays a vital role in modern architecture; concrete cracks refer to local fractures inside or on the surface of concrete due to various internal and external factors in concrete structures or components. These cracks may be microscopic, that is, less than 0.05 mm in width, usually difficult to detect by the human eye, and have little effect on the safety and use function of the structure; they may also be macroscopic, with a width greater than 0.05 mm, visible to the naked eye, and may affect the durability, stiffness and bearing capacity of the structure. The causes of concrete cracks are complex and varied, including the properties of the concrete material itself, technical operations during construction, changes in environmental conditions such as temperature and humidity), load effects, shrinkage and expansion of concrete, etc.

[0003] Combined with the concrete crack detection operation in the prior art, it is found that when performing concrete crack detection operations, ultrasonic concrete detection instruments are often used. When using them, it is necessary to manually hold the transducer close to the wall. When detecting and measuring concrete on the top of the roof, it is necessary to manually use auxiliary parts such as ladders to perform detection operations on the top concrete. In particular, the entire operation process takes a certain amount of time. It is very time-consuming and laborious to raise both hands for manual operation. In addition, if the hands shake, detection deviations may occur.

[0004] Based on this, the utility model designs a concrete crack detection device for construction engineering to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete crack detection device for construction engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete crack detection device for construction engineering, comprising a base body, a lifting mechanism is arranged above the base body, a detection mechanism is arranged above the lifting mechanism, the lifting mechanism comprises a support sleeve, a telescopic inner rod, a positioning screw, a support plate, a pneumatic push rod body and a bearing frame, the pneumatic push rod body is fixedly mounted on the upper end of the support plate, the transmission end of the pneumatic push rod body is fixedly connected with the bearing frame, the detection mechanism comprises a first mounting plate, a second mounting plate, a first driving motor, a first driving rod, a first displacement belt body, a first displacement block, a transmitting transducer, a first clamping plate, an ultrasonic detector and a scale, the transmission end of the first driving motor is fixedly mounted with the first driving rod, the outer side of the first driving rod is arranged with the first displacement belt body, the first displacement block is fixedly mounted on the first displacement belt body, the rear end of the first displacement block is mounted with the transmitting transducer, the outer side of the first displacement block is arranged with the first clamping plate, the lower part of the transmitting transducer is arranged with the scale, and the right end of the support sleeve is fixedly mounted with the ultrasonic detector.

[0007] Optionally, a support sleeve is fixedly mounted on the upper end of the base body, and a telescopic inner rod is mounted inside the support sleeve.

[0008] Optionally, a positioning screw is installed on the support sleeve, a support plate is fixedly installed on the upper end of the telescopic inner rod, and multiple groups of the positioning screws are distributed on the support sleeve from top to bottom.

[0009] Optionally, a first mounting plate is fixedly mounted on the right end of the supporting frame, and a first driving motor is fixedly mounted on the first mounting plate.

[0010] Optionally, the transmitting transducer is plugged into the first displacement block, and the detection mechanism further includes a second driving motor, a second driving rod, a second displacement belt, a second displacement block, a receiving transducer, a second clamping plate, a first connecting line and a second connecting line.

[0011] Optionally, a second mounting plate is fixedly mounted on the left end of the supporting frame, a second driving motor is fixedly mounted on the second mounting plate, a second driving rod is fixedly mounted on the transmission end of the second driving motor, and a second displacement belt is arranged on the outer side of the second driving rod.

[0012] Optionally, a second displacement block is installed on the second displacement belt, a receiving transducer is installed at the rear end of the second displacement block, the receiving transducer is plugged into the second displacement block, and a second clamping plate is arranged on the outer side of the upper end of the second displacement block.

[0013] Optionally, a first connecting wire is fixedly connected to the lower end of the transmitting transducer, and a second connecting wire is fixedly connected to the lower end of the receiving transducer, and both the first connecting wire and the second connecting wire are connected to an ultrasonic detector.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a lifting mechanism is provided, which adopts a manual distance adjustment structure and a pneumatic drive structure, and can quickly lift the detection mechanism as a whole to the bottom of the top concrete, and can also make the transmitting transducer and the receiving transducer in the detection mechanism respectively fit the lower surface of the top concrete, thereby achieving a close fit effect, and can stably measure the concrete crack data.

[0016] 2. In the utility model, a detection mechanism is provided, which adopts a linear displacement drive structure, and can automatically adjust the position of the transducer, thereby realizing detection data of multiple positions. Different from the traditional manual adjustment operation, the linear displacement drive structure replaces the traditional manual adjustment method, and the distance adjustment operation is more precise, and multiple groups of detection data can be measured more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0018] Figure 2 This is a schematic diagram of the structure of the three-dimensional rear view of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the utility model in a plane front view;

[0020] Figure 4 The structure of the utility model is schematically shown in a three-dimensional top view. Figure 1 ;

[0021] Figure 5 The structure of the utility model is schematically shown in a three-dimensional top view. Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the structure of the utility model in a three-dimensional cutaway view;

[0023] Figure 7 For this utility model Figure 4 A schematic diagram of the structure at the center showing a three-dimensional magnification;

[0024] Figure 8 For this utility model Figure 4 Schematic diagram of the three-dimensional enlarged structure at point B in the middle.

[0025] In the figure: 1. base body; 2. lifting mechanism; 201. support sleeve; 202. telescopic inner rod; 203. positioning screw; 204. support plate; 205. pneumatic push rod body; 206. bearing frame; 3. detection mechanism; 301. first mounting plate; 302. second mounting plate; 303. first drive motor; 304. first drive rod; 305. first displacement belt; 306. first displacement block; 307. transmitting transducer; 308. first clamping plate; 309. second drive motor; 310. second drive rod; 311. second displacement belt; 312. second displacement block; 313. receiving transducer; 314. second clamping plate; 315. first connecting line; 316. second connecting line; 317. ultrasonic detector; 318. scale. DETAILED DESCRIPTION

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 8 In an embodiment of the utility model, a concrete crack detection device for construction engineering includes a base body 1, a lifting mechanism 2 is arranged above the base body 1, a detection mechanism 3 is arranged above the lifting mechanism 2, the lifting mechanism 2 includes a support sleeve 201, a telescopic inner rod 202, a positioning screw 203, a support plate 204, a pneumatic push rod body 205 and a bearing frame 206, the pneumatic push rod body 205 is fixedly installed on the upper end of the support plate 204, the transmission end of the pneumatic push rod body 205 is fixedly connected with the bearing frame 206, the upper end of the base body 1 is fixedly installed with a support sleeve 201, the inside of the support sleeve 201 is installed with a telescopic inner rod 202, the positioning screw 203 is installed on the support sleeve 201, the upper end of the telescopic inner rod 202 is fixedly installed with a support plate 204, and multiple groups of positioning screws 203 are distributed on the support sleeve 201 from top to bottom;

[0030] See also Figure 6 Initially, the lifting mechanism 2 adopts a manual distance adjustment structure and a pneumatic drive structure. The manual distance adjustment structure is a support sleeve 201, a telescopic inner rod 202, a positioning screw 203 and a support plate 204, and the pneumatic drive structure is a pneumatic push rod body 205 and a bearing frame 206. Before activation, the pneumatic push rod body 205 needs to be powered and connected to the control terminal in advance. When activated, the positioning screw 203, the support plate 204, the pneumatic push rod body 205 and the bearing frame 206 and the detection mechanism 3 at the upper end of the telescopic inner rod 202 are lifted upward, and the detection mechanism 3 can be moved to the concrete crack area to be detected. When adjusting the position of the transducer later, the pneumatic drive structure can be activated, and the pneumatic push rod body 205 is started to push the bearing frame 206 and the detection mechanism 3 upward, so that the transducer fits the concrete;

[0031] Among them, the lifting mechanism 2 adopts a manual distance adjustment structure and a pneumatic drive structure, which can quickly lift the detection mechanism 3 as a whole to the bottom of the top concrete, and can also make the transmitting transducer 307 and the receiving transducer 313 in the detection mechanism 3 respectively fit on the lower surface of the top concrete, thereby achieving a close fit effect, and can stably measure the concrete crack data;

[0032] The detection mechanism 3 includes a first mounting plate 301, a second mounting plate 302, a first driving motor 303, a first driving rod 304, a first displacement belt 305, a first displacement block 306, a transmitting transducer 307, a first clamping plate 308, an ultrasonic detector 317 and a scale 318. The first driving rod 304 is fixedly mounted on the transmission end of the first driving motor 303, the first driving rod 304 is provided with a first displacement belt 305 on the outer side, and the first displacement block 306 is fixedly mounted on the first displacement belt 305. 6. A transmitting transducer 307 is installed at the rear end of the first displacement block 306, a first clamping plate 308 is arranged on the outer side of the first displacement block 306, a scale 318 is arranged below the transmitting transducer 307, an ultrasonic detector 317 is fixedly installed at the right end of the support sleeve 201, a first mounting plate 301 is fixedly installed at the right end of the load-bearing frame 206, a first driving motor 303 is fixedly installed on the first mounting plate 301, the transmitting transducer 307 is plugged into the first displacement block 306, and the detection mechanism 3 also includes a second The driving motor 309, the second driving rod 310, the second displacement belt 311, the second displacement block 312, the receiving transducer 313, the second clamping plate 314, the first connecting line 315 and the second connecting line 316, the left end of the carrying frame 206 is fixedly mounted with the second mounting plate 302, the second driving motor 309 is fixedly mounted on the second mounting plate 302, the second driving rod 310 is fixedly mounted on the transmission end of the second driving motor 309, and the second displacement belt 311 is arranged on the outer side of the second driving rod 310, A second displacement block 312 is installed on the second displacement belt 311, a receiving transducer 313 is installed at the rear end of the second displacement block 312, the receiving transducer 313 is plugged into the second displacement block 312, a second clamping plate 314 is arranged on the outer side of the upper end of the second displacement block 312, a first connecting line 315 is fixedly connected to the lower end of the transmitting transducer 307, a second connecting line 316 is fixedly connected to the lower end of the receiving transducer 313, and both the first connecting line 315 and the second connecting line 316 are connected to an ultrasonic detector 317;

[0033] See also Figure 4 , Figure 5 , Figure 7 and Figure 8, the detection mechanism 3 adopts a linear displacement drive structure. Before activation, the first drive motor 303, the second drive motor 309 and the ultrasonic detector 317 need to be powered on and connected to the control terminal in advance. When activated, the driving strength of the first drive motor 303 and the second drive motor 309 are pre-programmed, and the adjustment operation is performed according to the distances of 100mm, 150mm and 200mm. Before work, it is necessary to apply coupling agent on the transmitting transducer 307 and the receiving transducer 313 in advance, remove the first clamping plate 308 and the second clamping plate 314, and then remove the transmitting transducer 307 and the receiving transducer 313. After the transducers are coated with coupling agent, they are tightly attached together, and then the transmitting transducer 307 and the receiving transducer 313 are put back to their original positions; at the same time, the first drive motor 303 is started to drive the first drive rod 304 and the first displacement belt 305 to rotate, so that the first displacement belt 305 drives the first displacement block 306 and the transmitting transducer The transmitter 307 is moved, and the transmitting transducer 307 is first moved to 100 mm, and then the second driving motor 309 is started to drive the second driving rod 310 and the second displacement belt 311 to rotate, so that the second displacement belt 311 drives the second displacement block 312 and the receiving transducer 313 to move to 100 mm on the other side, and then the pneumatic driving structure in the lifting mechanism 2 is activated, and the pneumatic push rod body 205 is started to push the detection mechanism 3 upward, so that the transmitting transducer 307 and the receiving transducer 313 are attached to the concrete, and then the ultrasonic detector 317 is started for measurement; according to the above operation, the transmitting transducer 307 and the receiving transducer 313 are moved to 100 mm, 150 mm and 200 mm in turn for measurement operation, so that the concrete crack data can be measured; according to the above operation, it can be divided into marked cross-seam measurement and marked non-cross-seam measurement, so that more accurate concrete crack data can be measured;

[0034] Among them, the detection mechanism 3 adopts a linear displacement drive structure, which can automatically adjust the position of the transducer, thereby realizing the detection data of multiple positions. Different from the traditional manual adjustment operation, the linear displacement drive structure replaces the traditional manual adjustment method, and the distance adjustment operation is more accurate, and multiple groups of detection data can be measured more accurately;

[0035] The working principle of the utility model is as follows: first, the base body 1 of the device provides stable support for the whole, and the lifting mechanism 2 includes a support sleeve 201, a telescopic inner rod 202, a positioning screw 203, a support plate 204, a pneumatic push rod body 205 and a bearing frame 206, which are used to quickly lift the detection mechanism 3 as a whole to the concrete crack area to be detected. Under the action of the lifting mechanism, the detection mechanism 3 can automatically adjust its position to meet the detection needs of different heights; the detection mechanism 3 contains two sets of linear displacement drive structures, which are driven by a first drive motor 303 and a second drive motor 309 respectively. The first drive motor 303 is connected to the first drive rod 304 through the transmission end, and the first A first displacement belt 305 is provided on the outside of the driving rod 304, on which a first displacement block 306 is fixed, and a transmitting transducer 307 is installed on the displacement block. Similarly, a second driving motor 309 is connected to a second driving rod 310 through a transmission end, and a second displacement belt 311 is provided on the outside of the second driving rod 310, on which a second displacement block 312 is installed, and a receiving transducer 313 is installed on the displacement block. Before the detection, the first driving motor 303, the second driving motor 309 and the ultrasonic detector 317 need to be powered on and connected to the control terminal, and then the driving strength of the first driving motor 303 and the second driving motor 309 is preset by programming so as to adjust the transmitting transducer 307 and The receiving transducer 313 is moved to a predetermined distance (such as 100 mm, 150 mm and 200 mm); during the detection, firstly, a coupling agent is applied to the transmitting transducer 307 and the receiving transducer 313, and the first clamping plate 308 and the second clamping plate 314 are removed, and then the transmitting transducer and the receiving transducer are pressed together, and the first driving motor 303 is started, so that the first displacement belt 305 drives the first displacement block 306 and the transmitting transducer 307 to move to a predetermined position, and then the second driving motor 309 is started, so that the second displacement belt 311 drives the second displacement block 312 and the receiving transducer 313 to move to the corresponding position; then, the pneumatic driving mechanism in the lifting mechanism 2 is activated. The pneumatic push rod body 205 is started to push the detection mechanism 3 upward, so that the transmitting transducer 307 and the receiving transducer 313 are close to the concrete surface, and the ultrasonic detector 317 is started for measurement. The transmitting transducer and the receiving transducer are moved to different distances for measurement in turn, so as to obtain accurate data of concrete cracks; the device automatically adjusts the transducer position through the linear displacement drive structure, replaces the traditional manual adjustment method, realizes precise distance adjustment operation, can measure multiple groups of detection data, and effectively improves the efficiency and accuracy of concrete crack detection. At the same time, the device also supports marked cross-crack measurement and marked non-cross-crack measurement, further ensuring the accuracy of detection data.

[0036] 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 concrete crack detection device for construction engineering, comprising a base body (1), characterized in that: A lifting mechanism (2) is arranged above the base body (1), and a detection mechanism (3) is arranged above the lifting mechanism (2). The lifting mechanism (2) comprises a support sleeve (201), a telescopic inner rod (202), a positioning screw (203), a support plate (204), a pneumatic push rod body (205) and a bearing frame (206). The pneumatic push rod body (205) is fixedly mounted on the upper end of the support plate (204), and the transmission end of the pneumatic push rod body (205) is fixedly connected to the bearing frame (206). The detection mechanism (3) comprises a first mounting plate (301), a second mounting plate (302), a first drive motor (303), a first drive rod (304), a first displacement belt (305), a first displacement block (306), and a first displacement belt (305). 6), a transmitting transducer (307), a first clamping plate (308), an ultrasonic detector (317) and a scale (318), the transmission end of the first driving motor (303) is fixedly mounted with a first driving rod (304), the outer side of the first driving rod (304) is provided with a first displacement belt (305), the first displacement block (306) is fixedly mounted on the first displacement belt (305), the rear end of the first displacement block (306) is mounted with a transmitting transducer (307), the outer side of the first displacement block (306) is provided with a first clamping plate (308), a scale (318) is arranged below the transmitting transducer (307), and the right end of the supporting sleeve (201) is fixedly mounted with an ultrasonic detector (317).

2. A concrete crack detection device for construction engineering according to claim 1, characterized in that: A support sleeve (201) is fixedly mounted on the upper end of the base body (1), and a telescopic inner rod (202) is mounted inside the support sleeve (201).

3. A concrete crack detection device for construction engineering according to claim 2, characterized in that: A positioning screw (203) is installed on the support sleeve (201), a support plate (204) is fixedly installed on the upper end of the telescopic inner rod (202), and a plurality of groups of the positioning screws (203) are distributed on the support sleeve (201) from top to bottom.

4. A concrete crack detection device for construction engineering according to claim 1, characterized in that: A first mounting plate (301) is fixedly mounted on the right end of the supporting frame (206), and a first driving motor (303) is fixedly mounted on the first mounting plate (301).

5. The concrete crack detection device for construction engineering according to claim 1, characterized in that: The transmitting transducer (307) is plugged into the first displacement block (306), and the detection mechanism (3) further comprises a second driving motor (309), a second driving rod (310), a second displacement belt (311), a second displacement block (312), a receiving transducer (313), a second clamping plate (314), a first connecting line (315), and a second connecting line (316).

6. A concrete crack detection device for construction engineering according to claim 1, characterized in that: A second mounting plate (302) is fixedly mounted on the left end of the supporting frame (206), a second driving motor (309) is fixedly mounted on the second mounting plate (302), a second driving rod (310) is fixedly mounted on the transmission end of the second driving motor (309), and a second displacement belt (311) is arranged on the outer side of the second driving rod (310).

7. A concrete crack detection device for construction engineering according to claim 6, characterized in that: A second displacement block (312) is mounted on the second displacement belt (311), a receiving transducer (313) is mounted on the rear end of the second displacement block (312), the receiving transducer (313) is plugged into the second displacement block (312), and a second clamping plate (314) is arranged on the outer side of the upper end of the second displacement block (312).

8. The concrete crack detection device for construction engineering according to claim 5, characterized in that: The lower end of the transmitting transducer (307) is fixedly connected to a first connecting line (315), the lower end of the receiving transducer (313) is fixedly connected to a second connecting line (316), and the first connecting line (315) and the second connecting line (316) are both connected to an ultrasonic detector (317).

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