Wall crack detection device based on construction engineering

Abstract

The present invention discloses a wall crack detection device based on construction engineering, including a support component, a transmission component and a marking component, wherein the support component includes a base, a hanging ear, a driving component 1 and a rotating box, wherein two groups of hanging ears are respectively arranged on the base, the driving component 1 is arranged in the base, the rotating box is arranged at the output end of the driving component 1, the transmission component is arranged in the rotating box, the transmission component includes a driving component 2, a transmission mechanism, a sliding seat, a wall crack detector and a printing mechanism, wherein the driving component 2 is arranged in the rotating box, the transmission mechanism is arranged on the rotating box, the sliding seat is movably arranged on the transmission mechanism, the wall crack detector is arranged on the sliding seat, the printing mechanism is arranged on the sliding seat, and the marking component is arranged on the printing mechanism. Thus, the wall cracks are fully detected, the cracks are quickly marked when the wall cracks are detected, and the cracks are accurately positioned when they are subsequently repaired, which significantly improves the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a wall crack detection device based on construction engineering. Background Art

[0002] While ensuring project quality and safety, how to further improve construction efficiency, optimize project costs, and achieve sustainable development has become a pressing issue that needs to be addressed.

[0003] In the construction process of civil engineering, the detection of wall cracks is particularly important. Wall cracks may not only weaken the structural bearing capacity of the house and reduce the overall reliability of the structure, but may also trigger a series of chain reactions, such as the shedding of the concrete protective layer, accelerated corrosion of steel bars and carbonization of concrete, which will seriously affect the durability of the structure. What is more serious is that when the crack width reaches a certain extent, it may even directly endanger the safety of the structure.

[0004] However, in the actual detection process, due to the height of the building wall and the smallness of the cracks, traditional detection devices often have difficulty in marking them in a timely and accurate manner. This not only increases the difficulty of subsequent repair work, but may also lead to repeated detection, thereby reducing the overall construction efficiency. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to provide a wall crack detection device based on construction engineering.

[0007] The wall is inspected in different areas and divided into circular areas. This drives the wall crack detector to move at multiple angles to ensure the comprehensiveness of the inspection position. When wall cracks are detected, the cracks are quickly marked and accurately located during subsequent crack repair, significantly improving construction efficiency.

[0008] To achieve the above-mentioned purpose, the present invention proposes a wall crack detection device based on construction projects, including a support component, a transmission component and a marking component, wherein the support component includes a base, a hanging ear, a driving component one and a rotating box, wherein the hanging ear is in two groups, and the two groups of hanging ears are respectively arranged on the base; the driving component one is arranged in the base; the rotating box is arranged at the output end of the driving component one, and the rotating box is rotatably arranged on the base; the transmission component is arranged in the rotating box, and the transmission component includes a driving component two, a transmission mechanism, a sliding seat, a wall crack detector and a printing mechanism, wherein the driving component two is arranged in the rotating box; the transmission mechanism is arranged on the rotating box; the sliding seat is movably arranged on the transmission mechanism; the wall crack detector is arranged on the sliding seat; the printing mechanism is arranged on the sliding seat; the marking component is arranged on the printing mechanism, and the marking component is used to mark cracks detected on the wall.

[0009] In addition, the wall crack detection device based on construction engineering proposed in the application may also have the following additional technical features:

[0010] Specifically, the transmission mechanism includes a transmission screw, a positioning shaft and a movable ring, wherein the transmission screw is arranged at the second output end of the driving component; the positioning shaft is divided into two groups, and the two groups of positioning shafts are respectively arranged on the rotating box body; the movable ring is divided into two groups, and each group of movable rings is movably arranged on the corresponding positioning shaft.

[0011] Specifically, the printing mechanism includes an outer box body, an exhaust component, a knob, an extrusion component, a positioning plate, a material storage component and a movable plate, wherein the outer box body is arranged on the sliding seat; the exhaust component is arranged on the outer box body; the knob is rotatably arranged on the outer box body; the extrusion component is arranged on the outer box body; the positioning plate is arranged in the outer box body; the material storage component is rotatably arranged on the positioning plate; and the movable plate is rotatably arranged in the outer box body.

[0012] Specifically, the extrusion part includes an outer shield shell, a driving component three, a connecting frame and a push plate, wherein the outer shield shell is arranged on the outer box body; the driving component three is arranged in the outer shield shell; one end of the connecting frame is arranged at the output end of the driving component three; the push plate is arranged at the other end of the connecting frame, and the push plate is connected to the material storage part.

[0013] Specifically, the material storage part includes a material distribution pipe, a material guide pipe, a material storage pipe, a buffer rod rack and a buffer component, wherein the material distribution pipe is divided into multiple groups, and the multiple groups of the material distribution pipes are arranged in a circular array on the movable plate; the material guide pipe is divided into multiple groups, and the multiple groups of the material guide pipes are respectively and correspondingly arranged on the material distribution pipes; the material storage pipe is divided into multiple groups, and the multiple groups of the material storage pipes are respectively and correspondingly arranged on the material guide pipes; the buffer rod rack is divided into multiple groups, and the multiple groups of the buffer rod racks are respectively and movably arranged in the material guide pipes; the buffer component is sleeved on the buffer rod rack.

[0014] Specifically, the marking assembly includes a cover shell, an inner tube, a movable base plate, a reset component and a printing roller, wherein the cover shell is arranged on the positioning plate; the inner tube is arranged on the cover shell; the movable base plate is movably arranged in the inner tube; the two ends of the reset component are respectively connected to the movable base plate and the inner tube; and the printing roller is rotatably arranged on the movable base plate.

[0015] Specifically, an internal threaded collar is provided on the sliding seat, and the internal threaded collar is threadedly connected to the transmission screw.

[0016] Specifically, the positioning plate is a hollow plate, the output end of the air extraction component is connected to the air pipe, and the other end of the air pipe passes through the positioning plate to be connected to the material storage member.

[0017] Compared with the prior art, the wall crack detection device based on construction engineering of the present invention has the following advantages:

[0018] 1. Through the cooperation of support components and transmission components, it is widely applicable to building walls of different heights, and the wall can be inspected in different areas. The building wall is inspected in a circular rotation manner. During the inspection process, the wall inspection covers a wider range, and the inspection is more comprehensive.

[0019] 2. Through the marking component, when cracks on the wall are detected, the paint is sprayed on the surface of the wall, and the paint is printed on the cracks through the coating roller to mark the cracks. It does not affect the continuity of the detection and can accurately locate the cracks in the subsequent repair, thereby improving the efficiency of repair construction.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the coating and printing mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the marking component of the present invention.

[0025] As shown in the figure: 10, support assembly; 101, base; 102, hanging ear; 103, driving component 1; 104, rotating box; 20, transmission assembly; 201, driving component 2; 202, transmission mechanism; 2021, transmission screw; 2022, positioning shaft; 2023, movable ring; 203, sliding seat; 204, wall crack detector; 205, coating mechanism; 2051, outer box; 2052, exhaust component; 2053, knob; 2054, extrusion piece; 20 541, outer protective cover shell; 20542, driving component three; 20543, connecting frame; 20544, push plate; 2055, positioning plate; 2056, material storage part; 20561, material distribution pipe; 20562, material guide pipe; 20563, material storage pipe; 20564, buffer rod frame; 20565, buffer component; 2057, movable plate; 30, marking component; 301, cover shell; 302, inner through pipe; 303, movable base plate; 304, reset component; 305, printing roller. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0027] The following describes a wall crack detection device based on a construction project according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1-3 As shown, the wall crack detection device based on construction engineering according to an embodiment of the present invention includes a support component 10, a transmission component 20 and a marking component 30.

[0029] The supporting assembly 10 includes a base 101 , a hanging ear 102 , a driving component 103 and a rotating box 104 .

[0030] There are two groups of hanging ears 102, which are respectively arranged on the base 101, the driving component 103 is arranged in the base 101, the rotating box 104 is arranged at the output end of the driving component 103, and the rotating box 104 is rotatably arranged on the base 101.

[0031] It should be noted that the two sets of hanging ears 102 described in this embodiment are symmetrically arranged on the base 101, and in the process of civil engineering construction, the lifting and lowering movement of the support assembly 10 is adjusted by connecting the steel wire rope on the lifting equipment to the hanging ears 102, and crack detection is performed on the wall to be inspected.

[0032] Furthermore, in order to ensure that the support assembly 10 is adjusted to the detection area and stably adheres to the wall, a suction cup is provided on the base 101, and the base 101 is adsorbed and fixed on the wall surface by the suction cup.

[0033] It should be noted that the driving component 103 is a stepper motor, the output end of the stepper motor is connected to the rotating shaft through a reducer, the top wall of the rotating shaft is connected to the rotating box 104, and the driving component 103 is operated by controlling the switch and the power supply connection, which drives the transmission assembly 20 to rotate, thereby detecting the circular area.

[0034] The transmission assembly 20 is disposed in the rotating housing 104 , and includes a second driving component 201 , a transmission mechanism 202 , a sliding seat 203 , a wall crack detector 204 and a coating mechanism 205 .

[0035] The second driving component 201 is arranged in the rotating box 104, the transmission mechanism 202 is arranged on the rotating box 104, and the sliding seat 203 is movably arranged on the transmission mechanism 202. The wall crack detector 204 is arranged on the sliding seat 203, and the coating mechanism 205 is arranged on the sliding seat 203.

[0036] It should be noted that the second driving component 201 is a servo motor, which is connected to the power supply through the control switch and operates, and the second driving component 201 drives the sliding seat 203 to move horizontally back and forth on the transmission mechanism 202, adjusts the position of the wall crack detector 204 on the sliding seat 203, and detects different positions of the wall. When cracks on the wall are detected, the cracks are marked in real time through the printing mechanism 205.

[0037] The marking component 30 is disposed on the printing mechanism 205, and the marking component 30 is used to mark cracks detected on the wall.

[0038] It should be noted that the marking component 30 marks the cracks detected on the wall.

[0039] Specifically, during the construction of civil engineering, the steps for detecting cracks on the wall are as follows: through the connection of the hoisting equipment and the hanging ear 102 in the prior art, the base 101 is driven to move, and the driving component 1 103 is operated in close contact with the wall to drive the rotating box 104 to rotate, thereby driving the transmission component 20 to rotate and adjust the movement. Then, when the driving component 201 in the transmission component 20 is in operation, the transmission mechanism 202 is driven to rotate and then the sliding seat 203 is driven to reciprocate, and the wall crack detector 204 on the sliding seat 203 detects the cracks on the wall during the reciprocating movement. When cracks on the wall are detected, the cracks on the wall are marked by the marking component 30.

[0040] In one embodiment of the present invention, Figure 1 As shown, the transmission mechanism 202 includes a transmission screw 2021 , a positioning shaft 2022 and a movable collar 2023 .

[0041] Among them, the transmission screw 2021 is set at the output end of the driving component 201, the positioning shaft rod 2022 is divided into two groups, and the two groups of positioning shaft rods 2022 are respectively set on the rotating box 104, and the movable rings 2023 are divided into two groups, and each group of movable rings 2023 is movably set on the corresponding positioning shaft rod 2022.

[0042] It should be noted that the output end of the second driving component 201 is connected to the transmission screw 2021 through a reducer, and the transmission screw 2021 is threadedly connected to the sliding seat 203, and then two sets of positioning shafts 2022 are arranged above the transmission screw 2021, and the movable collar 2023 is sleeved on the positioning shaft 2022 and connected to the sliding seat 203. During the rotation process, the transmission screw 2021 is limited to the upper limit of the positioning shaft 2022 by the movable collar 2023, and the sliding seat 203 reciprocates and adjusts.

[0043] In one embodiment of the present invention, Figure 1 As shown, the printing mechanism 205 includes an outer box body 2051 , an air suction component 2052 , a knob 2053 , an extrusion component 2054 , a positioning plate 2055 , a material storage component 2056 and a movable plate 2057 .

[0044] The outer box 2051 is arranged on the sliding seat 203, the air extraction component 2052 is arranged on the outer box 2051, and the knob 2053 is rotatably arranged on the outer box 2051. The extrusion member 2054 is arranged on the outer box 2051, the positioning plate 2055 is arranged in the outer box 2051, the material storage member 2056 is rotatably arranged on the positioning plate 2055, and the movable plate 2057 is rotatably arranged in the outer box 2051.

[0045] It should be noted that the air pumping component 2052 described in this embodiment is an air pump, and the air pumping component 2052 is a prior art so it will not be described in detail here. The output end of the air pumping component 2052 is connected to the positioning plate 2055 in the outer box body 2051 through an air pipe, and the air pumping component 2052 is used to control the air pressure in the storage member 2056.

[0046] Further, a bearing seal ring is provided at the connection between the material storage member 2056 and the positioning plate 2055, and the air pipe on the output end of the air extraction component 2052 is connected to the material storage member 2056. The air pressure in the material storage member 2056 is controlled, and when the material storage member 2056 rotates, the coating in the material storage member 2056 is prevented from leaking through the bearing seal ring.

[0047] It should be noted that the knob 2053 is driven by the outside to rotate and adjust the material storage piece 2056, and at the same time, the material storage piece 2056 is driven by a motor (not shown in the figure) in the outer box body 2051 to rotate and adjust, and the output end of the motor is connected to the movable plate 2057, which synchronously drives the movable plate 2057 and the material storage piece 2056 to rotate.

[0048] In one embodiment of the present invention, Figure 2 As shown, the extrusion member 2054 includes an outer protective cover shell 20541, a driving component three 20542, a connecting frame 20543 and a push plate 20544.

[0049] The outer shield shell 20541 is arranged on the outer box body 2051, and the driving component three 20542 is arranged in the outer shield shell 20541. One end of the connecting frame 20543 is arranged at the output end of the driving component three 20542, and the push plate 20544 is arranged at the other end of the connecting frame 20543, and the push plate 20544 is connected to the storage member 2056.

[0050] It should be noted that the outer shield shell 20541 is detachably mounted on the outer box body 2051 by screws, and the driving component 3 20542 is a hydraulic cylinder, which is connected to the control switch and the power supply to operate the driving component 3 20542, and then the driving component 3 20542 operates to drive the push plate 20544 to move through the connecting frame 20543. When the push plate 20544 moves, it limits the rotating material storage member 2056 and cooperates with the material storage member 2056 during the movement.

[0051] In one embodiment of the present invention, Figure 2 As shown, the material storage member 2056 includes a material distribution pipe 20561, a material guide pipe 20562, a material storage pipe 20563, a buffer rod frame 20564 and a buffer component 20565.

[0052] There are multiple groups of material distribution pipes 20561, which are arranged in a circular array on the movable plate 2057. There are multiple groups of material guide pipes 20562, which are arranged on the material distribution pipes 20561. There are multiple groups of material storage pipes 20563, which are arranged on the material guide pipes 20562. There are multiple groups of buffer rod racks 20564, which are arranged in a movable manner in the material guide pipes 20562. The buffer components 20565 are sleeved on the buffer rod racks 20564.

[0053] It should be noted that the material distribution tubes 20561 described in this embodiment are in a circular array, and the material guide tube 20562 and the material storage tube 20563 are arranged on the material distribution tube 20561, and the buffer rod frame 20564 moves in the material storage tube 20563, and then when the push plate 20544 moves, the push plate 20544 will abut against the buffer rod frame 20564 when moving, and the buffer rod frame 20564 moves in the material guide tube 20562 to push out the paint in the material guide tube 20562.

[0054] Furthermore, a piston is provided on the buffer rod frame 20564, and the buffer component 20565 is a buffer spring. When the piston moves in the material guide tube 20562, it pushes the paint in the material guide tube 20562 to move.

[0055] In one embodiment of the present invention, Figure 3 As shown, the marking assembly 30 includes a cover shell 301, an inner tube 302, a movable base plate 303, a reset component 304 and a printing roller 305.

[0056] The housing 301 is disposed on the positioning plate 2055, the inner tube 302 is disposed on the housing 301, and the movable base plate 303 is movably disposed in the inner tube 302. The two ends of the reset component 304 are respectively connected to the movable base plate 303 and the inner tube 302, and the coating roller 305 is rotatably disposed on the movable base plate 303.

[0057] It should be noted that the inner tube 302 is arranged at the lower end of the cover shell 301, the cover shell 301 is a hollow shell, and the movable base plate 303 is raised and lowered in the inner tube 302, and the coating roller 305 is rotatably arranged on the movable base plate 303, and the coating roller 305 is pressed against the surface of the wall through the reset component 304, and the reset component 304 is a reset spring.

[0058] In one embodiment of the present invention, Figure 1 As shown, an internal threaded collar is provided on the sliding seat 203 , and the internal threaded collar is threadedly connected to the transmission screw 2021 .

[0059] It should be noted that the sliding seat 203 is provided with an internal threaded collar and is threadedly connected to the driving screw 2021 to ensure that the sliding seat 203 moves within the upper limit of the positioning shaft 2022 during the rotation of the driving screw 2021 .

[0060] In one embodiment of the present invention, Figure 2 As shown, the positioning plate 2055 is a hollow plate, the output end of the air extraction component 2052 is connected to the air pipe, and the other end of the air pipe passes through the positioning plate 2055 to connect to the material storage component 2056.

[0061] It should be noted that the positioning plate 2055 is a hollow plate, and the air pipe is connected to the positioning plate 2055. When the vacuum component 2052 is operated, the gas in the storage part 2056 is extracted to ensure the air pressure in the storage part 2056. In the absence of pressure, the paint will not fall.

[0062] Specifically, during the construction of civil engineering, the steps for detecting cracks on the wall are as follows: the base 101 is driven to move and fit on the wall through the existing hoisting equipment and the hanging ear 102. The driving component 103 drives the rotating box 104 to rotate, thereby driving the transmission assembly 20 to rotate and adjust.

[0063] Then, when the driving component 201 in the transmission assembly 20 is in operation, the transmission mechanism 202 is driven to rotate and then the sliding seat 203 is driven to reciprocate, and the transmission screw 2021 in the transmission mechanism 202 rotates with the operation of the driving component 201. The transmission screw 2021 is threadedly connected with the sliding seat 203 during the rotation process, and the sliding seat 203 is adjusted horizontally on the transmission screw 2021 by the upper limit of the positioning shaft 2022 through the movable collar 2023. The sliding seat 203 drives the wall crack detector 204 to move during the movement process, and performs circular movement detection on the local detection area.

[0064] When cracks are detected on the wall, the cracks on the wall are marked by the marking component 30. When cracks are detected, the operation of the driving component 201 is stopped and the driving component 3 20542 is operated. When the driving component 3 20542 is in operation, the push plate 20544 is driven to move through the connecting frame 20543. During the movement of the push plate 20544, the rotating knob 2053 or the motor in the outer box 2051 drives the storage member 2056 to rotate, and the storage member 2056 rotates through the limit of the push plate 20544. Subsequently, the push plate 20544 pushes the buffer rod frame 20564 to move during the movement. The buffer rod frame 20564 moves in the material guide tube 20562, squeezes out the paint in the storage tube 20563 and sprays it on the wall. Then, the driving component 103 is operated to drive the rotating box 104 to rotate. At this time, the printing roller 305 is pushed against the wall by the reset component 304. During the rotation of the rotating box 104, the printing roller 305 passes through the sprayed paint and prints the paint on the cracks of the wall to significantly mark the cracks. The cracks on the wall are quickly detected and the positions of the cracks are significantly marked.

[0065] In summary, the wall crack detection device based on construction projects in the embodiment of the present invention drives the wall crack detector to move at multiple angles, ensures the comprehensiveness of the detection position, quickly marks the cracks when they are detected, and accurately locates the cracks during subsequent repair, thereby significantly improving construction efficiency.

[0066] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A wall crack detection device based on construction engineering, characterized in that: It comprises a supporting assembly (10), a transmission assembly (20) and a marking assembly (30), wherein: The support assembly (10) comprises a base (101), a hanging ear (102), a driving component (103) and a rotating box (104), wherein: The hanging ears (102) are in two groups, and the two groups of hanging ears (102) are respectively arranged on the base (101); The driving component 1 (103) is arranged in the base (101); The rotating box (104) is arranged at the output end of the driving component 1 (103), and the rotating box (104) is rotatably arranged on the base (101); The transmission assembly (20) is arranged in the rotating housing (104), and comprises a second driving component (201), a transmission mechanism (202), a sliding seat (203), a wall crack detector (204) and a coating mechanism (205), wherein: The second driving component (201) is arranged in the rotating housing (104); The transmission mechanism (202) is arranged on the rotating housing (104); The sliding seat (203) is movably arranged on the transmission mechanism (202); The wall crack detector (204) is arranged on the sliding seat (203); The coating and printing mechanism (205) is arranged on the sliding seat (203); The marking component (30) is arranged on the printing mechanism (205), and the marking component (30) is used to mark cracks detected on the wall.

2. The wall crack detection device based on construction engineering according to claim 1 is characterized in that: The transmission mechanism (202) comprises a transmission screw (2021), a positioning shaft (2022) and a movable collar (2023), wherein: The transmission screw (2021) is arranged at the output end of the second driving component (201); The positioning shaft rods (2022) are in two groups, and the two groups of positioning shaft rods (2022) are respectively arranged on the rotating box body (104); The movable collars (2023) are divided into two groups, and each group of movable collars (2023) is movably arranged on the corresponding positioning shaft (2022).

3. The wall crack detection device based on construction engineering according to claim 1 is characterized in that: The coating and printing mechanism (205) comprises an outer box (2051), an air extraction component (2052), a knob (2053), an extrusion component (2054), a positioning plate (2055), a material storage component (2056) and a movable plate (2057), wherein: The outer box body (2051) is arranged on the sliding seat (203); The air extraction component (2052) is arranged on the outer box body (2051); The knob (2053) is rotatably arranged on the outer box body (2051); The extrusion member (2054) is arranged on the outer box body (2051); The positioning plate (2055) is arranged inside the outer box (2051); The material storage member (2056) is rotatably disposed on the positioning plate (2055); The movable plate (2057) is rotatably disposed within the outer box (2051).

4. The wall crack detection device based on construction engineering according to claim 3 is characterized in that: The extrusion member (2054) includes an outer shield shell (20541), a driving component three (20542), a connecting frame (20543) and a push plate (20544), wherein: The outer shield shell (20541) is arranged on the outer box body (2051); The driving component three (20542) is arranged in the outer shield shell (20541); One end of the connecting frame (20543) is arranged at the output end of the driving component three (20542); The push plate (20544) is arranged at the other end of the connecting frame (20543), and the push plate (20544) is connected to the material storage member (2056).

5. The wall crack detection device based on construction engineering according to claim 3 is characterized in that: The material storage member (2056) comprises a material distribution pipe (20561), a material guide pipe (20562), a material storage pipe (20563), a buffer rod frame (20564) and a buffer component (20565), wherein: The material distribution pipes (20561) are multiple groups, and the multiple groups of material distribution pipes (20561) are arranged in a circular array on the movable plate (2057); The material guide pipes (20562) are multiple groups, and the multiple groups of material guide pipes (20562) are respectively and correspondingly arranged on the material distribution pipes (20561); The material storage tubes (20563) are multiple groups, and the multiple groups of material storage tubes (20563) are respectively and correspondingly arranged on the material guide tube (20562); The buffer rod racks (20564) are multiple groups, and the multiple groups of buffer rod racks (20564) are movably and correspondingly arranged in the material guide tube (20562); The buffer component (20565) is sleeved on the buffer rod frame (20564).

6. The wall crack detection device based on construction engineering according to claim 3 is characterized in that: The marking assembly (30) comprises a housing (301), an inner tube (302), a movable base plate (303), a reset component (304) and a coating roller (305), wherein: The cover shell (301) is arranged on the positioning plate (2055); The inner through pipe (302) is arranged on the cover shell (301); The movable substrate (303) is movably disposed in the inner through tube (302); Two ends of the resetting component (304) are respectively connected to the movable base plate (303) and the inner through pipe (302); The coating roller (305) is rotatably arranged on the movable substrate (303).

7. The wall crack detection device based on construction engineering according to claim 2 is characterized in that: An internal threaded collar is provided on the sliding seat (203), and the internal threaded collar is threadedly connected to the transmission screw (2021).

8. The wall crack detection device based on construction engineering according to claim 3 is characterized in that: The positioning plate (2055) is a hollow plate, the output end of the air extraction component (2052) is connected to the air pipe, and the other end of the air pipe passes through the positioning plate (2055) to be connected to the material storage component (2056).

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