A multifunctional measuring device for construction engineering management

Abstract

The present invention discloses a multifunctional measuring device for construction engineering management, which belongs to the technical field of building wall measurement, and comprises a driving mechanism, a point marking mechanism, a defect self-checking mechanism and a multifunctional control system. The present invention can realize accurate identification of uneven positions on the surface of building walls and locate the specific positions of the uneven positions. Compared with traditional measuring tools, it can capture the changes in unevenness and can effectively improve the measurement accuracy. Secondly, the operation of the device is simple and fast, which can significantly shorten the measurement time and improve the measurement efficiency, save precious time and manpower costs for construction engineering management, and provide strong support for the digitalization and intelligent development of the construction industry. With the continuous advancement of technology and the continuous promotion of its application, the device is expected to become one of the standard measuring tools in the construction industry in the future, and promote the technological progress and development of the entire industry.

Description

Technical Field

[0001] The invention relates to the technical field of building wall measurement, and more specifically to a multifunctional measuring device for construction engineering management. Background Art

[0002] In construction project management, it is crucial to ensure the flatness and quality of the building wall. As the main load-bearing and enclosure structure of the building, the flatness of the wall surface is not only related to the aesthetics of the building, but also directly affects the insulation, waterproofing, sound insulation and other functions of the wall as well as the difficulty of subsequent decoration. However, in the actual construction process, due to the influence of various factors such as material properties, construction technology, and environmental conditions, the wall surface often appears uneven. If these uneven locations are not discovered and handled in time, they will have an adverse effect on the overall quality and performance of the building.

[0003] Traditional building wall measurement methods mainly focus on the detection of basic parameters such as wall size, verticality and flatness, but it is often difficult to accurately identify and quantify the subtle unevenness of the wall surface. This makes it difficult for construction workers to accurately judge the true condition of the wall surface, and thus difficult to take effective measures to repair and rectify. In addition, with the rapid development of the construction industry and people's increasing requirements for building quality, the accurate measurement and evaluation of the unevenness of the wall surface has become increasingly important.

[0004] In the prior art, most wall surface flatness detection instruments have a single function and can only measure the overall flatness of the wall surface, and basically do not have the function of accurately identifying and locating uneven positions.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a multifunctional measuring device for construction project management. Summary of the invention

[0006] The object of the present invention is to provide a multifunctional measuring device for construction project management to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0008] A multifunctional measuring device for construction engineering management, comprising a driving mechanism, a point marking mechanism, a defect self-inspection mechanism and a multifunctional control system, a driving mechanism, comprising a detection frame, the lower end of the detection frame is fixedly connected to a roller, the inner end of the detection frame is provided with a pair of longitudinally arranged screw rods 1, a pair of the screw rods 1 are each provided with a longitudinal slider, and a screw rod 2 is fixedly connected between the pair of longitudinal sliders, a detection block is provided on the screw rod 2, an end of the detection block close to a wall to be detected is provided with an assembly groove, a point marking mechanism, comprising a detection rod located in the assembly groove, the inner end of the detection rod is hollow, and a partition is provided at the geometric center of the inner end of the detection rod, the upper and lower ends of the partition are fixedly connected to a liquid storage bin, the liquid storage bin is filled with a marker by injection, a pair of the liquid storage bins are fixedly connected to a liquid guide tube at one end close to the opening of the assembly groove, and the end of the detection rod close to the wall is provided with a There are liquid outlet holes distributed in a circular array, and the liquid guide tube is connected to the liquid outlet holes. The liquid guide tube is provided with two micro-control valves that can independently control the discharge of markers in the two liquid storage bins. A pair of the micro-control valves are respectively recorded as micro-control valve-1 and micro-control valve-2, and a defect self-inspection mechanism includes a slide groove connected to the assembly groove. The outer end of the detection rod is fixedly connected with an increase ring, and the front and rear ends of the increase ring are respectively embedded with a strong magnetic ring 1 and an electromagnetic ring 1. A strong magnetic ring 2 and an electromagnetic ring 2 are embedded in the detection block and on the left and right sides of the assembly groove. The magnetic poles of the ends of the strong magnetic ring 1 and the strong magnetic ring 2 that are close to each other are the same. The left side wall of the increase ring and the left side wall of the assembly groove are respectively provided with electric contact 1 and electric contact 2, and the right side wall of the increase ring and the right side wall of the assembly groove are respectively provided with electric contact 3 and electric contact 4. A magnetic shielding ring is provided in the increase ring and between the pair of strong magnetic rings and the electromagnetic ring.

[0009] As a further improvement of the present invention, the multifunctional control system comprises:

[0010] A. Two pairs of screw rods and sliders, respectively recorded as screw rod 1, longitudinal slider, screw rod 2, and detection block. Each pair of screw rod and slider mechanism can move independently, and its movement is controlled by the motion module in the control circuit;

[0011] B. A pair of electromagnets, denoted as electromagnetic ring 1 and electromagnetic ring 2, are used to generate an adjustable magnetic field strength, and the magnetic field strength of the electromagnets is adjusted by an electromagnet strength control module in the control circuit;

[0012] C. Four electrical contacts, respectively denoted as electrical contact 1, electrical contact 2, electrical contact 3, and electrical contact 4;

[0013] D. Two micro-control valves, respectively denoted as micro-control valve-1 and micro-control valve-2;

[0014] E. A control circuit, which is connected to the lead screw and slider, electromagnet, electric contact, and micro-control valve, and is used to control the working state of each component according to an input signal, wherein:

[0015] When the electrical contact 1 contacts the electrical contact 2, the control circuit is activated and controls the micro-control valve-1 to start, so as to allow the fluid to flow through the micro-control valve-1;

[0016] When the electrical contact 3 is in contact with the electrical contact 4, the control circuit is activated and controls the micro-control valve-2 to start, so as to allow the fluid to flow through the micro-control valve-2;

[0017] The control circuit also has a normal self-locking mechanism to ensure that the two micro-control valves are in a normally closed state at any given time and when no wall defects are detected.

[0018] As a further improvement of the present invention, one end of the detection rod close to the wall is configured to be hemispherical, and the detection rod is made of carbon fiber reinforced plastic.

[0019] As a further improvement of the present invention, the markers in the two liquid storage bins are both fluorescent pigments, and the color spectra of the two are quite different. The marker in the upper liquid storage bin uses green fluorescent pigment, and the marker in the lower liquid storage bin uses blue fluorescent pigment.

[0020] As a further improvement of the present invention, the marker located in the upper liquid storage bin uses purple fluorescent pigment, and the marker located in the lower liquid storage bin uses yellow fluorescent pigment.

[0021] As a further improvement of the present invention, a pair of injection holes are provided on the left side wall of the detection block, and an injection port which is a self-sealing type under normal conditions is provided at one end of the liquid storage bin close to the injection holes.

[0022] As a further improvement of the present invention, a limiting groove connected to the slide groove is formed at the inner end of the detection block, and a spherical groove is formed at the outer end of the diameter increasing ring, and a ball is arranged in the spherical groove.

[0023] As a further improvement of the present invention, the multifunctional control system also includes an interlocking mechanism for preventing components that may interfere with each other from being simultaneously activated in a specific operating mode, specifically, preventing the simultaneous start of movement of screw rod 1 and longitudinal slider or screw rod 2 and detection block when adjusting the strength of the electromagnet between electromagnetic ring 1 and electromagnetic ring 2.

[0024] As a further improvement of the present invention, the control circuit also includes a user input interface, allowing the user to directly control the electromagnet strength between electromagnetic ring 1 and electromagnetic ring 2, the movement of screw rod 1 and longitudinal slider or screw rod 2 and detection block, and the switching state of the micro-control valve through buttons, touch screens or other input devices.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] This solution can accurately identify the uneven positions on the surface of building walls and locate the specific positions of the unevenness. Compared with traditional measuring tools, it can capture the changes in unevenness and effectively improve the measurement accuracy. Secondly, the operation of the device is simple and fast, which can significantly shorten the measurement time and improve the measurement efficiency, saving valuable time and manpower costs for construction project management.

[0027] This solution provides strong support for the digital and intelligent development of the construction industry. With the continuous advancement of technology and the continuous promotion of its application, this device is expected to become one of the standard measurement tools in the construction industry in the future, promoting technological progress and development of the entire industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a side cross-sectional view of the detection block and the wall in the present invention;

[0030] Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle;

[0031] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0032] Figure 5 It is an enlarged view of point C in 2 of the present invention;

[0033] Figure 6 It is a structural schematic diagram when the detection block detects the protrusion of the wall;

[0034] Figure 7 This is a schematic diagram of the structure when the detection block detects a depression in the wall.

[0035] Description of the numbers in the figure:

[0036] 1. Detection frame; 2. Roller; 3. Screw rod 1; 4. Longitudinal slider; 5. Screw rod 2; 6. Detection block; 601. Assembly groove; 602. Slide groove; 603. Limit groove; 604. Filling hole; 7. Detection rod; 701. Partition; 8. Liquid storage tank; 9. Marker; 10. Liquid guide tube; 11. Liquid outlet; 12. Micro-control valve; 13. Increasing ring; 1301. Ball; 14. Strong magnetic ring 1; 15. Strong magnetic ring 2; 16. Electric contact 1; 17. Electric contact 2; 18. Electromagnetic ring 1; 19. Electromagnetic ring 2; 20. Electric contact 3; 21. Electric contact 4; 22. Magnetic shielding ring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Example

[0038] See also Figure 1-7 , a multifunctional measuring device for construction engineering management, including a driving mechanism, a point marking mechanism, a defect self-detection mechanism and a multifunctional control system.

[0039] See also Figure 1 , a driving mechanism includes a detection frame 1, a roller 2 is fixedly connected to the lower end of the detection frame 1, a pair of longitudinally arranged screw rods 3 are arranged at the inner end of the detection frame 1, a longitudinal slider 4 is arranged on the pair of screw rods 1 3, and a screw rod 2 5 is fixedly connected between the pair of longitudinal sliders 4, a detection block 6 is arranged on the screw rod 2 5, and an assembly groove 601 is opened at one end of the detection block 6 close to the wall to be detected, and the driving mechanism is used to drive the detection block 6 to perform a sweeping detection on the wall, wherein the movement speed of the longitudinal slider 4 on the screw rod 1 3 and the detection block 6 on the screw rod 2 5 can be controlled by a motion module.

[0040] See also Figure 2 as well as Figure 4-7The point marking mechanism includes a detection rod 7 located in the assembly groove 601. The end of the detection rod 7 close to the wall is set to a hemispherical shape, so that the detection rod 7 has good detection performance of being able to sink into the depression of the wall and slide over the protrusion. The detection rod 7 is made of carbon fiber reinforced plastic. The inner end of the detection rod 7 is hollow. While ensuring the strength and wear resistance of the detection rod 7, the overall weight of the detection rod 7 is greatly reduced. When the detection block 6 moves along the wall to the point where there is an unevenness, it can quickly generate feedback movement that should be performed for the defect, and a partition 701 is set at the geometric center of the inner end of the detection rod 7. The partition 701 Both the upper and lower ends are fixedly connected with a liquid storage bin 8, and the liquid storage bin 8 is filled with a marker 9 by injection. One end of a pair of liquid storage bins 8 near the opening of the assembly groove 601 is fixedly connected with a liquid guide tube 10, and the liquid guide tube 10 is set in an "X" shape, which is convenient for spraying the marker 9 to the surrounding space of the concave and convex part of the wall during injection, and the detection rod 7 is provided with a liquid outlet hole 11 distributed in a ring array at one end near the wall, and the liquid guide tube 10 is connected with the liquid outlet hole 11. Two micro-control valves 12 that can independently control the discharge of the marker 9 in the two liquid storage bins 8 are arranged on the liquid guide tube 10. The pair of micro-control valves 12 are respectively recorded as micro-control valve 12-1 and micro-control valve 12-2, which are located on the upper side. The upper side is the micro-control valve 12-1, and the lower side is the micro-control valve 12-2. The markers 9 in the two liquid storage bins 8 are both fluorescent pigments, and the color spectra of the two are quite different. The marker 9 in the upper liquid storage bin 8 uses green fluorescent pigment, and the marker 9 in the lower liquid storage bin 8 uses blue fluorescent pigment. The green and blue fluorescent pigments are far apart in the spectrum, so their fluorescence emission spectra overlap less, which means that when these two colors are used for marking at the same time, the fluorescent signal of one color will basically not interfere with the signal of another color, thereby preventing the possibility of color cross-talk in the liquid catheter 10. The marker 9 in the upper liquid storage bin 8 can also Purple fluorescent pigment is used, and the marker 9 located in the lower liquid storage tank 8 can also use yellow fluorescent pigment. Although the positions of purple and yellow in the visible spectrum are relatively close, the luminescent characteristics of the fluorescent pigment make them show large differences in the fluorescent spectrum, and can also reduce the phenomenon of pigment cross-color in the catheter 10. Markers 9 of different colors are convenient for personnel to carry out subsequent maintenance operations and quickly distinguish between concave and convex points. A pair of injection holes 604 are opened on the left side wall of the detection block 6, and an injection port of the self-sealing type is set at one end of the liquid storage tank 8 close to the injection hole 604 under normal conditions, which is used to regularly or regularly replenish the marker 9 during the detection process.

[0041] See also Figure 2 as well as Figure 5-7The defect self-detection mechanism includes a slide groove 602 connected to the assembly groove 601, the outer end of the detection rod 7 is fixedly connected to the diameter increasing ring 13, the inner end of the detection block 6 is provided with a limit groove 603 connected to the slide groove 602, the outer end of the diameter increasing ring 13 is provided with a spherical groove, and a ball 1301 is arranged in the spherical groove. The limit groove 603 and the ball 1301 cooperate with each other to firstly limit the movement trajectory of the detection rod 7, and secondly, the detection rod 7 can move to the uneven part of the wall and move along the assembly groove 60 1 is moved in the left and right directions, its resistance is reduced, thereby improving the sensitivity of detection. The front and rear ends of the diameter increasing ring 13 are respectively embedded with a strong magnetic ring 14 and an electromagnetic ring 18. The left and right sides of the detection block 6 and the positions of the assembly groove 601 are both embedded with a strong magnetic ring 15 and an electromagnetic ring 19. The magnetic poles of the ends of the strong magnetic ring 14 and the strong magnetic ring 15 that are close to each other are the same, and have a large magnetic repulsion force, but this force is much smaller than the weight of the entire device. The left side wall of the diameter increasing ring 13 and the left side wall of the assembly groove 601 are respectively An electric contact 16 and an electric contact 2 17 are provided, and an electric contact 3 20 and an electric contact 4 21 are provided on the right side wall of the diameter increasing ring 13 and the right side wall of the assembly groove 601, respectively. It is worth noting that under normal conditions, the electromagnet strength control module is normally started, and the end magnetic poles of the electromagnetic ring 18 and the electromagnetic ring 2 19 that are close to each other when the electromagnet strength control module is started are the same, and there is a magnetic repulsion force, and the magnetic repulsion force is smaller than the magnetic repulsion force between the strong magnetic ring 14 and the strong magnetic ring 2 15, but under the influence of the magnetic force, the electric contact 3 2 0 and the electric contact four 21 will not be in direct contact, and there is a certain safety distance, so the marker 9 will not be sprayed out from the liquid outlet 11. When detecting defects on the wall surface, after the detection block 6 and the wall are in a state of being in contact, the electromagnet strength control module can be adjusted to a closed state or the strength can be controlled to an extremely low state. At this time, the electric contact one 16 and the electric contact two 17 as well as the electric contact three 20 and the electric contact four 21 will not be in contact. Then the detection block 6 is controlled to drive the detection rod 7 to detect along the wall, such as Figure 2 shown.

[0042] A magnetic shielding ring 22 is provided inside the diameter increasing ring 13 and between a pair of strong magnetic rings and the electromagnetic ring, which can effectively avoid magnetic interference between the strong magnetic ring 14 and the strong magnetic ring 2 15 and between the electromagnetic ring 1 18 and the electromagnetic ring 2 19, and is used to ensure the stability of the device operation.

[0043] Multifunctional control system, including:

[0044] A. Two pairs of screw rods and sliders, respectively denoted as screw rod 1 3, longitudinal slider 4, screw rod 2 5, and detection block 6. Each pair of screw rods and slider mechanisms can move independently, and their movements are controlled by the motion module in the control circuit;

[0045] B. A pair of electromagnets, denoted as electromagnetic ring 18 and electromagnetic ring 2 19, respectively, for generating an adjustable magnetic field strength, the magnetic field strength of the electromagnets being adjusted by an electromagnet strength control module in the control circuit;

[0046] C. Four electrical contacts, respectively denoted as electrical contact one 16, electrical contact two 17, electrical contact three 20, and electrical contact four 21;

[0047] D. Two micro-control valves, respectively denoted as micro-control valve 12 - 1 and micro-control valve 12 - 2 ;

[0048] E. Control circuit, which is connected to the lead screw and slider, electromagnet, electric contact, and micro-control valve, and is used to control the working state of each component according to the input signal, wherein:

[0049] When the electrical contact 16 is in contact with the electrical contact 2 17 , the control circuit is activated and controls the micro-control valve 12 - 1 to start, so as to allow the fluid to flow through the micro-control valve 12 - 1 ;

[0050] When the electrical contact 3 20 is in contact with the electrical contact 4 21, the control circuit is activated and controls the micro-control valve 12-2 to start, so as to allow the fluid to flow through the micro-control valve 12-2;

[0051] The control circuit also has a normal self-locking mechanism to ensure that at any given time and when no wall defects are detected, both micro-control valves are in a normally closed state;

[0052] An interlocking mechanism is used to prevent components that may interfere with each other from being activated simultaneously in a specific operating mode, specifically, to prevent the simultaneous activation of the screw rod 1 3 and the longitudinal slider 4 or the screw rod 2 5 and the detection block 6 when adjusting the strength of the electromagnet between the electromagnetic ring 1 18 and the electromagnetic ring 2 19;

[0053] The control circuit also includes a user input interface, allowing the user to directly control the electromagnet strength between electromagnetic ring 18 and electromagnetic ring 2 19, the movement of screw rod 1 3 and longitudinal slider 4 or screw rod 2 5 and detection block 6, and the switching state of micro-control valve 12 through buttons, touch screens or other input devices.

[0054] See also Figure 6 When the detection rod 7 moves to the protrusion of the wall, the protrusion squeezes the detection rod 7 into the assembly groove 601, so that the diameter-increasing ring 13 slides toward the left side of the limit groove 603, so that the electrical contact 1 16 contacts the electrical contact 2 17, and the control circuit is activated and controls the micro-control valve 12-1 to open, so that the green / yellow fluorescent pigment in the upper liquid storage tank 8 is sprayed out from the liquid outlet 11 to mark the periphery of the protrusion of the wall.

[0055] See also Figure 7When the detection rod 7 moves to the recessed part of the wall, since the magnetic repulsion between the strong magnetic ring 14 and the strong magnetic ring 2 15 is greater than the magnetic repulsion between the electromagnetic ring 18 and the electromagnetic ring 2 19, the detection rod 7 moves directly toward the recessed part, causing the diameter increasing ring 13 to slide toward the right side of the limit groove 603, so that the electrical contact 3 20 contacts the electrical contact 4 21, and the control circuit is activated and controls the micro-control valve 12-2 to open, so that the blue / purple fluorescent pigment in the lower liquid storage tank 8 is sprayed out from the liquid outlet 11 to mark the recessed part of the wall.

[0056] This solution can accurately identify the uneven positions on the surface of building walls and locate the specific positions of the unevenness. Compared with traditional measuring tools, it can capture the changes in unevenness and effectively improve the measurement accuracy. Secondly, the device is easy and quick to operate, which can significantly shorten the measurement time and improve the measurement efficiency, saving valuable time and manpower costs for construction project management. It also provides strong support for the digital and intelligent development of the construction industry. With the continuous advancement of technology and the continuous promotion of its application, this device is expected to become one of the standard measuring tools in the construction industry in the future, promoting technological progress and development of the entire industry.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A multifunctional measuring device for construction engineering management, characterized in that: It includes a driving mechanism, a point marking mechanism, a defect self-inspection mechanism and a multi-functional control system; The driving mechanism comprises a detection frame (1), the lower end of the detection frame (1) is fixedly connected to a roller (2), the inner end of the detection frame (1) is provided with a pair of longitudinally arranged screw rods (3), each of the pair of screw rods (3) is provided with a longitudinal slider (4), and a screw rod (5) is fixedly connected between the pair of longitudinal sliders (4), a detection block (6) is provided on the screw rod (5), and an assembly groove (601) is provided at one end of the detection block (6) close to the wall to be detected; A point marking mechanism comprises a detection rod (7) located in an assembly groove (601), the inner end of the detection rod (7) being hollow, and a partition (701) being arranged at the geometric center of the inner end of the detection rod (7), the upper and lower ends of the partition (701) being fixedly connected to a liquid storage bin (8), the liquid storage bin (8) being filled with a marker (9) by injection, a pair of liquid storage bins (8) having one end close to the opening of the assembly groove (601) being fixedly connected to a liquid guide tube (10), the end of the detection rod (7) close to the wall being provided with liquid outlet holes (11) distributed in a ring array, the liquid guide tube (10) being connected to the liquid outlet holes (11), the liquid guide tube (10) being provided with two micro-control valves (12) each capable of independently controlling the discharge of the markers (9) in the two liquid storage bins (8), the pair of micro-control valves (12) being respectively denoted as micro-control valve (12)-1 and micro-control valve (12)-2; The defect self-detection mechanism comprises a slide groove (602) connected to the assembly groove (601), the outer end of the detection rod (7) is fixedly connected to a diameter increasing ring (13), the front and rear ends of the diameter increasing ring (13) are respectively embedded with a strong magnetic ring (14) and an electromagnetic ring (18), the detection block (6) is located in the assembly groove (601) and the left and right sides are both embedded with a strong magnetic ring (15) and an electromagnetic ring (19), the strong magnetic ring (14) and the strong magnetic ring (18) are respectively embedded with a strong magnetic ring (15) and an electromagnetic ring (19), The magnetic poles of the two ends of the ring (15) close to each other are the same; the left side wall of the diameter increasing ring (13) and the left side wall of the assembly groove (601) are respectively provided with an electric contact one (16) and an electric contact two (17); the right side wall of the diameter increasing ring (13) and the right side wall of the assembly groove (601) are respectively provided with an electric contact three (20) and an electric contact four (21); and a magnetic shielding ring (22) is provided inside the diameter increasing ring (13) and between the pair of strong magnetic rings and the electromagnetic ring.

2. A multifunctional measuring device for construction engineering management according to claim 1, characterized in that: The multifunctional control system comprises: A. Two pairs of screw rods and sliders, respectively denoted as screw rod 1 (3), longitudinal slider (4), screw rod 2 (5), and detection block (6). Each pair of screw rods and slider mechanisms can move independently, and their movements are controlled by a motion module in the control circuit; B. A pair of electromagnets, denoted as electromagnetic ring 1 (18) and electromagnetic ring 2 (19), for generating an adjustable magnetic field strength, wherein the magnetic field strength of the electromagnets is adjusted by an electromagnet strength control module in the control circuit; C. Four electrical contacts, respectively denoted as electrical contact 1 (16), electrical contact 2 (17), electrical contact 3 (20), and electrical contact 4 (21); D. two micro-control valves, respectively denoted as micro-control valve (12)-1 and micro-control valve (12)-2; E. A control circuit, which is connected to the lead screw and slider, electromagnet, electric contact, and micro-control valve, and is used to control the working state of each component according to an input signal, wherein: When the electrical contact 1 (16) contacts the electrical contact 2 (17), the control circuit is activated and controls the micro-control valve (12)-1 to start, so as to allow the fluid to flow through the micro-control valve (12)-1; When the electrical contact 3 (20) contacts the electrical contact 4 (21), the control circuit is activated and controls the micro-control valve (12)-2 to start, so as to allow the fluid to flow through the micro-control valve (12)-2; The control circuit also has a normal self-locking mechanism to ensure that the two micro-control valves are in a normally closed state at any given time and when no wall defects are detected.

3. A multifunctional measuring device for construction engineering management according to claim 1, characterized in that: One end of the detection rod (7) close to the wall is arranged in a hemispherical shape, and the detection rod (7) is made of carbon fiber reinforced plastic.

4. A multifunctional measuring device for construction engineering management according to claim 1, characterized in that: The markers (9) in the two liquid storage bins (8) are both fluorescent pigments, and the color spectra of the two are quite different. The marker (9) in the upper liquid storage bin (8) uses a green fluorescent pigment, and the marker (9) in the lower liquid storage bin (8) uses a blue fluorescent pigment.

5. A multifunctional measuring device for construction engineering management according to claim 4, characterized in that: The marker (9) located in the upper liquid storage bin (8) is made of purple fluorescent pigment, and the marker (9) located in the lower liquid storage bin (8) is made of yellow fluorescent pigment.

6. A multifunctional measuring device for construction engineering management according to claim 4, characterized in that: A pair of liquid injection holes (604) are provided on the left side wall of the detection block (6), and a liquid injection port which is a self-sealing type under normal conditions is provided at one end of the liquid storage bin (8) close to the liquid injection holes (604).

7. A multifunctional measuring device for construction engineering management according to claim 1, characterized in that: The inner end of the detection block (6) is provided with a limit groove (603) which is connected to the slide groove (602), and the outer end of the diameter increasing ring (13) is provided with a spherical groove, in which a ball (1301) is arranged.

8. A multifunctional measuring device for construction engineering management according to claim 2, characterized in that: The multifunctional control system further comprises an interlocking mechanism for preventing components that may interfere with each other from being activated simultaneously in a specific operating mode, specifically, preventing the simultaneous activation of the movement of the lead screw 1 (3) and the longitudinal slide block (4) or the lead screw 2 (5) and the detection block (6) when adjusting the strength of the electromagnet between the first electromagnetic ring (18) and the second electromagnetic ring (19).

9. A multifunctional measuring device for construction engineering management according to claim 2, characterized in that: The control circuit also includes a user input interface, allowing the user to directly control the strength of the electromagnet between the first electromagnetic ring (18) and the second electromagnetic ring (19), the movement of the first screw (3) and the longitudinal slider (4) or the second screw (5) and the detection block (6), and the switch state of the micro-control valve (12) through a key, a touch screen or other input device.

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