CN214250909U

CN214250909U - Crack detection device

Info

Publication number: CN214250909U
Application number: CN202120222631.3U
Authority: CN
Inventors: 陈小虎; 李军; 许伟; 李攀; 方家臣
Original assignee: Anhui Hongqiao Transportation And Construction Supervision Co ltd
Current assignee: Anhui Hongqiao Transportation And Construction Supervision Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-09-21
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a crack detection device, which comprises a host, a generator and a receiver; the fixed frame is provided with a strip-shaped sliding chute, and the sliding block is in sliding fit with the sliding chute; the avris of slider is provided with the bolt that is used for fastening the slider, bolt one end run through the slider and with slider screw-thread fit, the mount lateral wall is provided with the bar groove that supplies the bolt to remove, the outside portion that the bolt corresponds the mount is provided with the gasket. The device can adjust the test height, easily reach the detectable height, and the distance between the receiver and the generator is adjustable, so that the device has the effect of improving the efficiency of large-scale search-type detection, and can control the distance between the receiver and the generator to finely detect the visible cracks. After the distance between the generator and the receiver is adjusted, the position is fixed through the bolt, the distance between the generator and the receiver is prevented from changing, and the stability is improved.

Description

Crack detection device

Technical Field

The utility model belongs to the technical field of engineering check out test set, especially, relate to a crack detection device.

Background

The concrete crack depth finder generates diffraction at the crack end point when sound waves propagate through the crack in the concrete, and the diffraction angle of the diffraction has a certain geometrical relation with the crack depth. When the crack depth instrument is used, the crack depth value and the received waveform are displayed on the same screen, so that the data are accurate and reliable; the waveform and the data are synchronously stored, and original information and rechecked data can be checked; and intelligently interpreting the depth of the crack.

The electro-acoustic transducer is contacted with the surface of the concrete, the ultrasonic wave generated by the transmitting energy device is received by the receiving energy device, and the ultrasonic wave is diffracted, reflected and attenuated when the crack is met in the concrete. The depth of the crack is judged by regression analysis according to the change of parameters such as sound time, wave amplitude and the like.

Because ultrasonic wave crack detection has transmitter and receiver respectively, can't adjust the distance of transmitter and receiver to the crack of different positions, the crack detection position of eminence is not fixed well moreover, leads to the testing result inaccurate. Therefore, the utility model discloses mainly solve because ultrasonic detection concrete crack, the not good location of crack of eminence leads to detecting unsafe problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crack detection device, what mainly solve is because ultrasonic detection concrete crack, the not good location of crack of eminence leads to detecting unsafe problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a crack detection device comprises a host, a generator and a receiver; the generator and the receiver are both arranged on a fixed frame, and the fixed frame is also provided with a telescopic rod for controlling the height of the fixed frame;

the fixing frame is rectangular, a strip-shaped sliding groove is formed in the fixing frame, the end part of the telescopic rod is installed in the center of the sliding groove, a generator and a receiver are respectively installed on the sliding groove relative to two sides of the telescopic rod, the generator and the receiver are installed on a sliding block, and the sliding block is in sliding fit with the sliding groove;

the avris of slider is provided with the bolt that is used for fastening the slider, bolt one end run through the slider and with slider screw-thread fit, the mount lateral wall is provided with the bar groove that supplies the bolt to remove, the outside portion that the bolt corresponds the mount is provided with the gasket.

Furthermore, a cavity is arranged inside the sliding block, the receiver and the generator both penetrate through the sliding block and are in sliding fit with the penetrating part of the sliding block, supporting pieces are fixed on the parts of the receiver and the generator corresponding to the cavity, and a spring is arranged between the supporting pieces and the upper side wall of the cavity.

Furthermore, a fixed block is arranged at the joint of the telescopic rod and the fixed frame, a ball groove is formed in the fixed block, a ball shaft is arranged at the end of the telescopic rod, and the ball shaft is mounted in the ball groove.

Furthermore, the pressing surface of the fixing frame is provided with a silica gel layer.

The utility model discloses following beneficial effect has:

the device can adjust the test height, easily reach the detectable height, and the distance between the receiver and the generator is adjustable, so that the device has the effect of improving the efficiency of large-scale search-type detection, and can control the distance between the receiver and the generator to finely detect the visible cracks. After the distance between the generator and the receiver is adjusted, the position is fixed through the bolt, the distance between the generator and the receiver is prevented from changing, and the stability is improved.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1: the utility model discloses the mount has the structure chart of sectioning.

FIG. 2: the utility model discloses the schematic structure.

FIG. 3: the utility model discloses mount bottom structure picture.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a main machine 1, a generator 3, a receiver 4, a fixing frame 2, an expansion link 5, a sliding chute 21, a sliding block 6, a bolt 7, a strip-shaped groove 22, a cavity 61, a supporting sheet 31, a spring 62, a fixing block 8, a ball groove 81, a ball shaft 51 and a silica gel layer 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1-3: a crack detection device comprises a host 1, a generator 3 and a receiver 4; the generator is an ultrasonic generator, and the receiver is an ultrasonic receiver.

The generator 3 and the receiver 4 are both arranged on a fixed frame 2, and the fixed frame 2 is also provided with a telescopic rod 5 for controlling the height of the fixed frame 2; the telescopic link is cup jointed each other for a plurality of sleeve pipes and forms, can be according to the length of the measuring height control telescopic link of mount.

The fixing frame 2 is rectangular and has an outer frame structure of a frame, the fixing frame 2 is provided with a strip-shaped sliding groove 21, and the sliding groove is parallel to the length direction of the fixing frame and is a through groove. The end part of the telescopic rod 5 is installed in the center of the sliding groove 21, the generator 3 and the receiver 4 are installed on two sides of the sliding groove 21 relative to the telescopic rod 5 respectively, the generator 3 and the receiver 4 are installed on a sliding block 6, and the position and the distance between the generator and the receiver can be adjusted according to the sliding of the sliding block. The sliding block 6 is in sliding fit with the sliding groove 21;

the avris of slider 6 is provided with bolt 7 that is used for

fastening slider

6, 7 one end of bolt run through slider 6 and with 6 screw-thread fit of slider, 2 lateral walls of mount are provided with the bar groove 22 that supplies bolt 7 to remove, the outside portion that bolt 7 corresponds mount 2 is provided with the gasket. When the sliding block needs to be fixed, the bolt is rotated to enable the sliding block and the side wall of the fixing frame to be clamped tightly to achieve a fastening position.

The utility model discloses in, not only can adjust the test height, reach detectable height easily, the distance of receiver and generator is adjustable simultaneously, detects to search formula on a large scale and has the effect of raising the efficiency, can control both intervals simultaneously, carries out careful detection to the visibility crack. After the distance between the generator and the receiver is adjusted, the position is fixed through the bolt, the distance between the generator and the receiver is prevented from changing, and the stability is improved.

As shown in fig. 1: the inside of slider 6 is provided with cavity 61, and the slider is the casing form, receiver 4 and generator 3 all run through slider 6 and with the partial sliding fit that passes of slider 6, the through-hole is located the central authorities of slider, the part that receiver 4 and generator 3 correspond in cavity 61 is fixed with backing sheet 31, be provided with spring 62 between the upper side wall of backing sheet 31 and cavity 61. The spring is sleeved on the corresponding receiver and generator, the receiver and generator have floatability, when the telescopic rod is controlled remotely to press the fixing frame, the receiver and generator can be in elastic contact with the wall, the pressing contact performance of the receiver or generator and the wall is improved, and meanwhile, the contact head cannot be damaged due to too large pressing force.

As shown in fig. 1: the connecting part of the telescopic rod 5 and the fixing frame 2 is provided with a fixing block 8, the fixing block 8 is provided with a ball groove 81, the end part of the telescopic rod 5 is provided with a ball shaft 51, and the ball shaft 51 is arranged in the ball groove 81. The end part of the telescopic rod and the fixing frame can be adjusted at multiple angles, and the position of the fixing frame is adjusted according to the inclination angle of the wall.

As shown in fig. 3: the pressing surface of the fixing frame 2 is provided with a silica gel layer 23. The fixing frame is used for forming better friction force with the wall, is beneficial to relatively stabilizing the fixing frame when being attached to the wall, prevents shaking and sliding, and has certain elasticity between the fixing frame and the wall.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crack detection device comprises a host (1), a generator (3) and a receiver (4); the method is characterized in that:

the generator (3) and the receiver (4) are both arranged on a fixed frame (2), and the fixed frame (2) is also provided with a telescopic rod (5) for controlling the height of the fixed frame (2);

the fixing frame (2) is rectangular, the fixing frame (2) is provided with a strip-shaped sliding chute (21), the end part of a telescopic rod (5) is installed in the center of the sliding chute (21), a generator (3) and a receiver (4) are respectively installed on the sliding chute (21) relative to two sides of the telescopic rod (5), the generator (3) and the receiver (4) are both installed on a sliding block (6), and the sliding block (6) is in sliding fit with the sliding chute (21);

the avris of slider (6) is provided with bolt (7) that are used for fastening slider (6), bolt (7) one end run through slider (6) and with slider (6) screw-thread fit, mount (2) lateral wall is provided with strip groove (22) that supply bolt (7) to remove, the outside portion that bolt (7) correspond mount (2) is provided with the gasket.

2. A crack detection device as claimed in claim 1, characterized in that: the novel multifunctional sliding block is characterized in that a cavity (61) is formed in the sliding block (6), the receiver (4) and the generator (3) penetrate through the sliding block (6) and are in sliding fit with the penetrating part of the sliding block (6), a supporting piece (31) is fixed on the part, corresponding to the cavity (61), of the receiver (4) and the generator (3), and a spring (62) is arranged between the supporting piece (31) and the upper side wall of the cavity (61).

3. A crack detection device as claimed in claim 1, characterized in that: the connecting part of the telescopic rod (5) and the fixing frame (2) is provided with a fixing block (8), the fixing block (8) is provided with a ball groove (81), the end part of the telescopic rod (5) is provided with a ball shaft (51), and the ball shaft (51) is installed in the ball groove (81).

4. A crack detection device as claimed in claim 1, characterized in that: the pressing surface of the fixing frame (2) is provided with a silica gel layer (23).