Construction engineering crack detection device and method

Abstract

The invention relates to the technical field of building engineering, in particular to a building engineering crack detection device and method.The building engineering crack detection device comprises a transmitting assembly, a receiving assembly, a fixing assembly and a remote control module, the fixing assembly is arranged at one end of the transmitting assembly, and the receiving assembly is slidably connected to the transmitting assembly; the remote control module is in wireless communication connection with the transmitting assembly, the receiving assembly and the fixing assembly; the transmitting assembly comprises a shell, a storage groove is formed in the outer wall of one side of the shell, and an ultrasonic transmitter is mounted on one side of the bottom of the inner wall of the shell through bolts; when the device is used for detection, a driving motor is operated to control a gear to move, so that the gear walks on a rack, automatic adjustment of the position of an ultrasonic receiver in a receiving assembly is achieved, the difficulty of single-person operation is greatly reduced, through the design, one person can complete crack parameter detection, and compared with the prior art, the detection efficiency is greatly improved. Through the design, the working efficiency of crack detection is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a device and method for detecting cracks in construction engineering. Background Art

[0002] In construction projects, crack detection is an important step in evaluating the structural integrity of bridges, tunnels, buildings, concrete pavements, metal surfaces, etc. In order to reduce damage to buildings, ultrasonic testing is used for detection. Ultrasonic testing is a non-destructive testing method that uses the propagation characteristics of ultrasonic waves in concrete to detect cracks and defects. It is suitable for the detection of deep cracks and can detect very small defects and foreign objects.

[0003] For example, a construction project crack detection device and method with application number CN202411376586.1 and publication date 20241206 includes a detection device, the detection device includes an ultrasonic instrument, an ultrasonic connecting joint is installed on one side of the ultrasonic instrument, the ultrasonic connecting joint is connected to a detection probe through a cable, the detection probe is installed on the wall through an installation device, the installation device includes a positioning bracket and a mounting bracket, the positioning bracket is installed on the wall through an adsorption assembly, the mounting bracket is used to install the detection probe, and the detection probe is fixed by plugging the positioning bracket and the mounting bracket. An adsorption suction cup for preliminary fixation is installed at the bottom of the positioning bracket. This solution has the beneficial effect of freeing one of the manual workers by installing the bracket on the wall to ensure the stability of the probe and then operating the instrument body, thereby solving the problem of low efficiency caused by the existing detection method requiring two manual workers.

[0004] When crack detection is performed by ultrasonic detection, two people are usually required to cooperate. In order to solve this problem, an adsorption structure is designed in the prior art. The adsorption structure can be used to fix the probe. The purpose of single-person testing can be met by fixing the probe. However, this method still requires manual movement of the probe position, and since the ultrasonic detection method requires workers to constantly change the detection position, the difficulty of single-person operation is greatly increased, which affects the efficiency of building crack detection. Therefore, it is urgent to design a construction project crack detection device and method to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a construction engineering crack detection device and method to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A construction engineering crack detection device comprises a transmitting component, a receiving component, a fixing component and a remote control module, wherein the fixing component is arranged at one end of the transmitting component, the receiving component is slidably connected to the transmitting component, and the remote control module is wirelessly connected to the transmitting component, the receiving component and the fixing component; The transmitting assembly includes a shell, a storage groove is provided on one side of the outer wall of the shell, an ultrasonic transmitter is installed on one side of the bottom of the inner wall of the shell by bolts, two support plates are installed inside the shell by bolts, and an electric roller is installed between the two support plates by bearings, a connecting belt is wrapped around the outside of the electric roller, and a plurality of chain belt blocks spliced ​​together are installed on one end of the connecting belt by bolts, and two adjacent chain belt blocks are rotatably connected, the chain belt block passes through the storage groove, and the chain belt block includes a block body, an installation groove is provided on one side of the outer wall of the block body, a connecting block is integrally formed on the outer wall of one side of the block body, and one end of the connecting block It is installed inside the installation groove through a bearing, racks are installed on the outer walls on both sides of the block through bolts, a handle is installed on the outer wall on one side of the shell through bolts, a cover plate is installed on the outer wall on the other side of the shell through bolts, and a battery module is installed on the outer wall on one side of the cover plate through bolts, three grooves are opened on the outer wall on one side of the shell, and a suction cup is installed inside the groove through bolts, a control panel and a pump body are installed on both sides of the bottom of the inner wall of the shell through bolts, and the control panel is electrically connected to the pump body and the battery module through wires, and the pump body is connected to the three suction cups through pipes; The receiving assembly includes a sliding seat, a ranging module is provided on the outer wall of one side of the sliding seat, two installation areas are provided on the outer wall of one side of the sliding seat, and the two installation areas are interconnected, a partition plate is installed inside the installation area by bolts, a driving motor is installed on the outer wall of one side of the partition plate by bolts, and a gear is installed on the output end of the driving motor by a flat key, the gear and the rack are meshed with each other, four springs are installed on the outer wall of one side of the partition plate by bolts, and a sliding frame is installed on one end of the four springs by bolts, an ultrasonic receiver is installed on the outer wall of one side of the sliding frame by bolts, the gear is located inside the sliding frame, a control module and a signal module are respectively installed on the outer wall of one side of the partition plate by bolts, and the control module is electrically connected to the signal module, the driving motor, the ultrasonic receiver and the ranging module through wires.

[0007] Furthermore, the fixing assembly includes a box shell, a connecting seat is installed on the outer wall of one side of the box shell by bolts, one end of one of the chain belt blocks is installed inside the connecting seat by a bearing, a support plate is installed inside the box shell by bolts, and a power module is installed on the outer wall of one side of the top of the support plate by bolts, a cover plate 2 is installed on the outer wall of one side of the box shell by bolts, a handle 2 is installed on the outer wall of one side of the box shell by bolts, and a key switch is installed on the outer wall of one side of the handle 2 by bolts, a pump body 2 is installed on one side of the inner wall of the box shell by bolts, two grooves 2 are provided on the outer wall of one side of the box shell, and a suction cup 2 is installed inside the groove 2 by bolts, the suction cup 2 is connected to the pump body 2 through a pipeline, and the pump body 2 is electrically connected to the key switch and the power module respectively through wires.

[0008] A construction engineering crack detection method comprises the following steps: Step S1. Preliminary preparation: clean the building, then attach the side of the launch assembly with the suction cup 1 to the side of the building to be tested, then operate the control panel to control the pump body 1 to start, the pump body 1 extracts the air inside the suction cup 1, and the suction cup 1 is adsorbed and fixed on the building, then the fixing assembly is pulled by the handle 2, the fixing assembly moves to the appropriate position, press the button switch, the power module supplies power to the pump body 2, the pump body 2 starts, the air inside the suction cup 2 is extracted, the box shell is fixed on the building, and at the same time, the structure composed of multiple chain belt blocks spliced ​​together will unfold to form a slide rail structure; Step S2. Operation starts: operate the remote control module, the remote control module will send a command to the signal module, the control module will control the two drive motors to start according to the command, the drive motor will drive the gear to rotate, the gear will move on the rack, the distance measuring module will detect the distance moved between the sliding seat and the shell, the data at the detection point will be transmitted to the remote control module through the signal module, the remote control module will display the moving distance of the sliding seat, when it moves to the appropriate position, operate the remote control module, the remote control module will control the receiving component to stop moving; Step S3. Ultrasonic detection: Continue to operate the remote control module, the remote control module controls the ultrasonic transmitter to start, the ultrasonic transmitter transmits ultrasonic waves to the building, and then operates the remote control module to control the ultrasonic receiver to start, the ultrasonic receiver will receive the ultrasonic information transmitted in the building, and transmit the information to the remote control module through the signal module, and the remote control module will display the received information in the form of images; Step S4. Repeat and mark: Repeat step S to continue to move the receiving component, adjust the position of the ultrasonic receiver, and repeat the inspection of the building to ensure the accuracy of the measurement. After the measurement, mark the crack position on the building with a marker.

[0009] In the above technical solution, the present invention provides a construction engineering crack detection device and method, the beneficial effects are:

[0010] (1) During detection, the crack detection device designed in the present invention can control the movement of the gear by operating the driving motor so that the gear moves on the rack, thereby realizing automatic adjustment of the position of the ultrasonic receiver in the receiving component, greatly reducing the difficulty of single-person operation. Moreover, through this design, one person can complete the detection of crack parameters. Compared with the existing technology, this design greatly improves the work efficiency of crack detection.

[0011] (2) When the sliding frame and spring designed in the present invention detect cracks in a building, the sliding frame will be tightly attached to the building under the action of the spring, so that the ultrasonic receiver can be tightly attached to the uneven side of the building, which is convenient for ensuring the accuracy of subsequent detection. In addition, as the sliding seat moves, the sliding frame will level one side of the building.

[0012] (3) The transmitting assembly, chain belt block and fixing assembly designed in the present invention operate the electric roller to start, and the electric roller will reel in the connecting belt. As the connecting belt is reeled in, the structure composed of the multiple chain belt blocks will gradually retract into the shell. As the electric roller is reeled in, the fixing assembly will stick together with the transmitting assembly, thereby adjusting the volume of the device and making it convenient for a single person to carry the device for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The present invention provides an overall structural schematic diagram of a construction engineering crack detection device and method embodiment of the present invention.

[0015] Figure 2 A schematic diagram of the structure of a transmitting assembly provided in an embodiment of a construction engineering crack detection device and method of the present invention.

[0016] Figure 3 A schematic structural diagram of a shell, a support plate and a cover plate provided in an embodiment of a construction engineering crack detection device and method of the present invention.

[0017] Figure 4 A schematic diagram of the chain belt block structure provided for an embodiment of a construction engineering crack detection device and method of the present invention.

[0018] Figure 5 A schematic diagram of the structure of a fixing assembly provided in an embodiment of a construction engineering crack detection device and method of the present invention.

[0019] Figure 6A schematic diagram of the structure of a receiving component provided in an embodiment of a construction engineering crack detection device and method of the present invention.

[0020] Figure 7 A schematic diagram of power control provided for an embodiment of a construction engineering crack detection device and method of the present invention.

[0021] Figure 8 A method flow chart is provided for an embodiment of a construction engineering crack detection device and method of the present invention.

[0022] Description of reference numerals: 1. Transmitter assembly; 2. Receiving assembly; 3. Fixing assembly; 4. Remote control module; 5. Shell; 6. Handle 1; 7. Groove 1; 8. Suction cup 1; 9. Ultrasonic transmitter; 10. Storage slot; 11. Chain belt block; 12. Support plate; 13. Cover plate 1; 14. Battery module; 15. Electric roller; 16. Connecting belt; 17. Control panel; 18. Pump body 1; 19. Block; 20. Mounting slot; 21. Connecting block; 22. Rack; 23. Box shell; 24. Connecting seat; 25. Groove 2; 26. Suction cup 2; 27. Pump body 2; 28. Support plate; 29. ​​Power module; 30. Cover plate 2; 31. Handle 2; 32. Push switch; 33. Sliding seat; 34. Installation area; 35. Control module; 36. Drive motor; 37. Partition plate; 38. Signal module; 39. Spring; 40. Sliding frame; 41. Gear; 42. Ultrasonic receiver; 43. Distance measurement module. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-7 As shown, a construction engineering crack detection device provided by an embodiment of the present invention comprises a transmitting component 1, a receiving component 2, a fixing component 3 and a remote control module 4, wherein the remote control module 4 uses an ultrasonic detector, the fixing component 3 is arranged at one end of the transmitting component 1, the receiving component 2 is slidably connected to the transmitting component 1, and the remote control module 4 is wirelessly connected to the transmitting component 1, the receiving component 2 and the fixing component 3; The transmitting assembly 1 includes a shell 5, a storage groove 10 is provided on one side of the outer wall of the shell 5, an ultrasonic transmitter 9 is installed on one side of the bottom of the inner wall of the shell 5 by bolts, and the ultrasonic transmitter 9 is preferably a PureView series pulse generator. Two support plates 12 are installed inside the shell 5 by bolts, and an electric roller 15 is installed between the two support plates 12 by bearings. The electric roller 15 is preferably a WINROLLER direct-drive power roller. A connecting belt 16 is wound around the outside of the electric roller 15, and a plurality of chain belt blocks 11 spliced ​​together are installed at one end of the connecting belt 16 by bolts. The plurality of chain belt blocks 11 spliced ​​together can form A slide rail structure is used to operate the electric roller 15 to start. The electric roller 15 will reel in the connecting belt 16, and as the connecting belt 16 is reeled in, the structure formed by the multiple chain belt blocks 11 will gradually retract into the shell 5. As the electric roller 15 is reeled in, the fixing component 3 will be attached to the transmitting component 1, and the volume of the device is adjusted, so that it is convenient for a single person to carry the device for detection. Two adjacent chain belt blocks 11 are rotatably connected, and the chain belt block 11 passes through the storage slot 10. The chain belt block 11 includes a block body 19, and an installation slot 20 is opened on one side of the outer wall of the block body 19. A connecting block 21 is integrally formed on the outer wall of one side of the block body 19, and the connecting block 21 and the installation slot 2 0 is designed to facilitate the fixing of two adjacent chain belt blocks 11 together, and one end of the connecting block 21 is installed in the mounting groove 20 through a bearing, and racks 22 are installed on the outer walls of both sides of the block 19 by bolts; a handle 6 is installed on the outer wall of one side of the shell 5 by bolts, a cover plate 13 is installed on the outer wall of the other side of the shell 5 by bolts, and a battery module 14 is installed on the outer wall of one side of the cover plate 13 by bolts. The battery module 14 is a lithium battery pack that can power the electrical appliances on the shell 5. Three grooves 7 are opened on the outer wall of one side of the shell 5, and a suction cup 8 is installed inside the groove 7 by bolts. The suction cup 8 is a rubber suction cup, and the inner wall of the shell 5 A control panel 17 and a pump body 18 are respectively installed on both sides of the bottom by bolts. The control panel 17 is preferably Tp3057s1, and the pump body 18 is preferably a TCG dual-purpose micro pump for pumping and inflating. The operation of the control panel 17 can control the operation of the pump body 18 and other electrical appliances inside the shell 5. The control panel 17 is operated to control the start of the pump body 18. The pump body 18 extracts the air inside the suction cup 8, and the suction cup 8 is fixed on the building by absorption, so that the shell 5 is fixed on the building. The control panel 17 is electrically connected to the pump body 18 and the battery module 14 through wires, and the pump body 18 is connected to the three suction cups 8 through pipelines. The receiving component 2 includes a sliding seat 33, and a distance measuring module 43 is provided on the outer wall of one side of the sliding seat 33. The distance measuring module 43 is preferably a REALWAVErfA laser distance measuring sensor. The distance measuring module 43 detects the distance moved between the sliding seat 33 and the housing 5. The data at the detection location is transmitted to the remote control module 4 through the signal module 38. The remote control module 4 displays the moving distance of the sliding seat 33. When it moves to a suitable position, the remote control module 4 is operated, and the remote control module 4 controls the receiving component 2 to stop moving. Two installation areas 34 are provided on the outer wall of one side of the sliding seat 33, and the two installation areas 34 are connected to each other. The inside of the installation area 34 A partition plate 37 is installed by bolts, and a driving motor 36 is installed on the outer wall of one side of the partition plate 37 by bolts. The model of the driving motor 36 is preferably a 68KTYZ deceleration low-speed slow forward and reverse micro motor, and a gear 41 is installed on the output end of the driving motor 36 through a flat key. The two driving motors 36 are controlled to start, and the driving motor 36 will drive the gear 41 to rotate, and the gear 41 will walk on the rack 22, so that the receiving component 2 moves on one side of the building, which is convenient for a single person to detect cracks in the building. The gear 41 and the rack 22 are meshed with each other. Four springs 39 are installed on the outer wall of one side of the partition plate 37 by bolts, and one end of the four springs 39 is installed by bolts. The sliding frame 40 is equipped. When detecting cracks in a building, the sliding frame 40 will be tightly attached to the building under the action of the spring 39, so that the ultrasonic receiver 42 can be tightly attached to the uneven side of the building, so as to ensure the accuracy of subsequent detection. The outer wall of one side of the sliding frame 40 is equipped with an ultrasonic receiver 42 by bolts. The model of the ultrasonic receiver 42 is preferably a PureView pulse receiver. The ultrasonic receiver 42 is controlled to start. The ultrasonic receiver 42 will receive the ultrasonic information transmitted in the building and transmit the information to the remote control module 4 through the signal module 38. The remote control module 4 will display the received information in the form of images. The gear 41 Located inside the sliding frame 40, the outer wall on one side of the partition plate 37 is respectively installed with a control module 35 and a signal module 38 by bolts. The model of the control module 35 is preferably a Hengtai DC brushless motor controller circuit board control board. Through the remote control module 4, the remote control module 4 will send a command to the operation control module 35, and the control module 35 will control the operation of electrical appliances such as the drive motor 36. The signal module 38 uses PTR5420H Bluetooth, which can make the remote control module 4 and the control module 35 wirelessly communicate, and the control module 35 is electrically connected to the signal module 38, the drive motor 36, the ultrasonic receiver 42 and the ranging module 43 through wires.

[0025] In another embodiment provided by the present invention, Figure 5As shown, the fixing assembly 3 includes a box shell 23, a connecting seat 24 is installed on the outer wall of one side of the box shell 23 by bolts, one end of one of the chain belt blocks 11 is installed inside the connecting seat 24 through a bearing, a support plate 28 is installed inside the box shell 23 by bolts, and a power module 29 is installed on the outer wall of one side of the top of the support plate 28 by bolts, the power module 29 is composed of a lithium battery pack, and can supply power to the electrical appliances inside the box shell 23, a cover plate 2 30 is installed on the outer wall of one side of the box shell 23 by bolts, a handle 2 31 is installed on the outer wall of one side of the box shell 23 by bolts, and the handle 2 31 is convenient for pulling the fixing assembly 3, and a key switch 32 is installed on the outer wall of one side of the handle 2 31 by bolts, and the key switch Model 32 is preferably PAS6B2M1CES3-5, and a pump body 27 is installed on one side of the inner wall of the box shell 23 by bolts. The model of the pump body 27 is preferably a TCG dual-purpose micro pump for pumping and inflating air. Two grooves 25 are provided on the outer wall of one side of the box shell 23, and a suction cup 26 is installed inside the groove 25 by bolts. The suction cup 26 is a rubber suction cup. When the button switch 32 is pressed, the power module 29 supplies power to the pump body 27, the pump body 27 starts, and the air inside the suction cup 26 is extracted. The box shell 23 is fixed on the building, the suction cup 26 is interconnected with the pump body 27 through a pipeline, and the pump body 27 is electrically connected to the button switch 32 and the power module 29 through wires.

[0026] A construction engineering crack detection method, such as Figure 8 As shown, the following steps are included: Step S1. Preliminary preparation: clean the building, then attach the side of the transmitting component 1 with the suction cup 8 to the side of the building to be tested, then operate the control panel 17 to control the pump body 18 to start, the pump body 18 extracts the air inside the suction cup 8, and the suction cup 8 will be adsorbed and fixed on the building, then pull the fixing component 3 through the handle 2 31, the fixing component 3 moves to the appropriate position, press the button switch 32, the power module 29 supplies power to the pump body 27, the pump body 27 starts, extracts the air inside the suction cup 26, and the box shell 23 is fixed on the building, and at the same time, the structure composed of multiple chain belt blocks 11 spliced ​​together will unfold to form a slide rail structure; Step S2. Operation starts: operate the remote control module 4, the remote control module 4 will send a command to the signal module 38, the control module 35 controls the two drive motors 36 to start according to the command, the drive motor 36 will drive the gear 41 to rotate, the gear 41 will move on the rack 22, the distance measuring module 43 will detect the distance moved between the sliding seat 33 and the housing 5, the data at the detection point will be transmitted to the remote control module 4 through the signal module 38, the remote control module 4 will display the moving distance of the sliding seat 33, when it moves to the appropriate position, operate the remote control module 4, the remote control module 4 will control the receiving component 2 to stop moving; Step S3. Ultrasonic detection: continue to operate the remote control module 4, the remote control module 4 controls the ultrasonic transmitter 9 to start, the ultrasonic transmitter 9 transmits ultrasonic waves to the building, and then operates the remote control module 4 to control the ultrasonic receiver 42 to start, the ultrasonic receiver 42 will receive the ultrasonic information transmitted in the building, and transmit the information to the remote control module 4 through the signal module 38, and the remote control module 4 will display the received information in the form of images; Step S4. Repeat and mark: Repeat step S2 to continue to operate the receiving component 2 to move, adjust the position of the ultrasonic receiver 42, and repeat the inspection of the building to ensure the accuracy of the measurement. After the measurement, mark the crack position on the building with a marker.

[0027] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A construction engineering crack detection device, comprising a transmitting component (1), a receiving component (2), a fixing component (3) and a remote control module (4), characterized in that: The fixing component (3) is arranged at one end of the transmitting component (1), the receiving component (2) is slidably connected to the transmitting component (1), and the remote control module (4) is wirelessly connected to the transmitting component (1), the receiving component (2) and the fixing component (3); The transmitting assembly (1) comprises a housing (5), a receiving groove (10) is provided on one side of the outer wall of the housing (5), an ultrasonic transmitter (9) is installed on one side of the bottom of the inner wall of the housing (5) by means of bolts, two support plates (12) are installed inside the housing (5) by means of bolts, and an electric roller (15) is installed between the two support plates (12) by means of bearings, a connecting belt (16) is wound around the outside of the electric roller (15), and a plurality of chain belt blocks (11) spliced ​​together are installed on one end of the connecting belt (16) by means of bolts, and two adjacent chain belt blocks (11) are rotatably connected, the chain belt blocks (11) pass through the receiving groove (10), the chain belt block (11) comprises a block body (19), an installation groove (20) is provided on one side of the outer wall of the block body (19), a connecting block (21) is integrally formed on one side of the outer wall of the block body (19), and one end of the connecting block (21) is installed inside the installation groove (20) by means of bearings, and racks (22) are installed on both sides of the outer walls of the block body (19) by means of bolts; The receiving assembly (2) comprises a sliding seat (33), an outer wall of one side of the sliding seat (33) is provided with a distance measuring module (43), an outer wall of one side of the sliding seat (33) is provided with two installation areas (34), and the two installation areas (34) are interconnected, a partition plate (37) is installed inside the installation area (34) by means of bolts, a drive motor (36) is installed on the outer wall of one side of the partition plate (37) by means of bolts, and a gear (41) is installed at the output end of the drive motor (36) by means of a flat key, the gear (41) and the rack (22) are meshed with each other, four springs (39) are installed on the outer wall of one side of the partition plate (37) by means of bolts, and a sliding frame (40) is installed at one end of the four springs (39) by means of bolts, an ultrasonic receiver (42) is installed on the outer wall of one side of the sliding frame (40) by means of bolts, and the gear (41) is located inside the sliding frame (40).

2. A construction engineering crack detection device according to claim 1, characterized in that: A control module (35) and a signal module (38) are respectively mounted on an outer wall of one side of the partition plate (37) by means of bolts, and the control module (35) is respectively electrically connected to the signal module (38), the drive motor (36), the ultrasonic receiver (42) and the distance measurement module (43) by means of wires.

3. A construction engineering crack detection device according to claim 1, characterized in that: A handle (6) is mounted on the outer wall of one side of the shell (5) by means of bolts, a cover plate (13) is mounted on the outer wall of the other side of the shell (5) by means of bolts, and a battery module (14) is mounted on the outer wall of one side of the cover plate (13) by means of bolts.

4. A construction engineering crack detection device according to claim 3, characterized in that: The outer wall of one side of the shell (5) is provided with three grooves (7), and a suction cup (8) is installed inside the groove (7) by means of bolts.

5. A construction engineering crack detection device according to claim 4, characterized in that: A control panel (17) and a pump body (18) are respectively mounted on both sides of the bottom of the inner wall of the housing (5) by means of bolts, and the control panel (17) is electrically connected to the pump body (18) and the battery module (14) by means of wires, and the pump body (18) is interconnected with the three suction cups (8) by means of pipes.

6. A construction engineering crack detection device according to claim 1, characterized in that: The fixing assembly (3) comprises a box shell (23), a connecting seat (24) being mounted on an outer wall of one side of the box shell (23) via bolts, and one end of one of the chain belt blocks (11) being mounted inside the connecting seat (24) via a bearing.

7. A construction engineering crack detection device according to claim 6, characterized in that: A support plate (28) is installed inside the box shell (23) by means of bolts, and a power module (29) is installed on an outer wall on one side of the top of the support plate (28) by means of bolts.

8. A construction engineering crack detection device according to claim 7, characterized in that: A second cover plate (30) is mounted on an outer wall of one side of the box shell (23) by means of bolts, a second handle (31) is mounted on an outer wall of one side of the box shell (23) by means of bolts, and a key switch (32) is mounted on an outer wall of one side of the handle (31) by means of bolts.

9. A construction engineering crack detection device according to claim 8, characterized in that: A second pump body (27) is mounted on one side of the inner wall of the box shell (23) by means of bolts. Two second grooves (25) are provided on one side of the outer wall of the box shell (23). A second suction cup (26) is mounted inside the second groove (25) by means of bolts. The second suction cup (26) is connected to the second pump body (27) by means of a pipeline. The second pump body (27) is electrically connected to the key switch (32) and the power module (29) by means of wires.

10. A construction engineering crack detection method, using a construction engineering crack detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1. Preliminary preparation: clean the building, then attach the side of the launch component (1) with the suction cup (8) to the side of the building to be tested, then operate the control panel (17) to control the pump body (18) to start, the pump body (18) extracts the air inside the suction cup (8), and the suction cup (8) is adsorbed and fixed on the building, then the fixing component (3) is pulled by the handle (31), the fixing component (3) moves to a suitable position, the button switch (32) is pressed, the power module (29) supplies power to the pump body (27), the pump body (27) starts, the air inside the suction cup (26), the box shell (23) is fixed on the building, and at the same time, the structure composed of the plurality of chain belt blocks (11) is unfolded to form a slide rail structure; Step S2. Operation starts: operate the remote control module (4), the remote control module (4) will send a command to the signal module (38), the control module (35) controls the two drive motors (36) to start according to the command, the drive motor (36) will drive the gear (41) to rotate, the gear (41) will move on the rack (22), the distance measuring module (43) will detect the distance moved between the sliding seat (33) and the housing (5), the data at the detection point will be transmitted to the remote control module (4) through the signal module (38), the remote control module (4) will display the moving distance of the sliding seat (33), when it moves to the appropriate position, operate the remote control module (4), the remote control module (4) will control the receiving component (2) to stop moving; Step S3. Ultrasonic detection: Continue to operate the remote control module (4), the remote control module (4) controls the ultrasonic transmitter (9) to start, the ultrasonic transmitter (9) transmits ultrasonic waves to the building, and then operates the remote control module (4) to control the ultrasonic receiver (42) to start, the ultrasonic receiver (42) will receive the ultrasonic information transmitted in the building, and transmit the information to the remote control module (4) through the signal module (38), and the remote control module (4) will display the received information in the form of images; Step S4. Repeat and mark: Repeat step S2 to continue to operate the receiving component (2) to move, adjust the position of the ultrasonic receiver (42), and repeat the inspection of the building to ensure the accuracy of the measurement. After the measurement is completed, mark the crack position on the building with a marker.

Images