Device for measuring thickness of steel bar protective layer through remote control movement

Abstract

The invention belongs to the technical field of steel bar protective layer thickness measuring instruments, particularly relates to a remote-control movable measuring device for measuring the thickness of a steel bar protective layer, and provides the following scheme aiming at the problem that an existing steel bar protective layer thickness measuring instrument is inconvenient to measure beam and plate components at high positions. The device comprises a base composed of a U-shaped frame and two supporting frames, the supporting frames are installed on the two sides of the bottom end of the U-shaped frame, universal wheels with the locking function are installed on the two sides of the bottom end of each supporting frame, a storage battery and a pushing handle are installed on one side of the U-shaped frame, and a telescopic mechanism is movably installed at the top end of the U-shaped frame; the top end of the telescopic mechanism is movably provided with a steel bar protective layer thickness electromagnetic induction tester with a detection probe, and one side of the opening of the U-shaped frame is provided with a tester rotating mechanism installed on the supporting frame. The device is convenient to move and fix, a tester can be driven to measure various positions and angles, and the measuring effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar protective layer measuring instruments, and in particular to a remotely controlled and movable measuring device for measuring the thickness of a steel bar protective layer. Background Art

[0002] At present, the steel bar protective layer thickness measuring instrument is a special instrument used to detect the thickness of the steel bar protective layer in concrete. It is widely used in the detection of steel bar position in concrete structure projects such as bridges and tunnels, providing reliable technical data for the identification of structural projects.

[0003] Existing rebar cover thickness gauges require placing a sensor probe against the rebar cover. The sensor transmits a signal to the gauge's main unit, where the data is displayed on an LCD screen. However, when testing higher-level beams and slabs, it's inconvenient to use a platform or ladder to move the probe to a higher position. To address this, we propose a remotely controlled rebar cover thickness measurement device. Summary of the Invention

[0004] The invention provides a remote control movable device for measuring the thickness of steel bar protective layer, which solves the problem in the background art that the existing steel bar protective layer thickness measuring instrument is inconvenient for measuring beam and plate components at higher positions.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A remotely controlled mobile device for measuring the thickness of a steel bar protective layer comprises a base consisting of a U-shaped frame and two support frames, support frames are installed on both sides of the bottom end of the U-shaped frame, universal wheels with a locking function are installed on both sides of the bottom end of the support frames, a battery and a push handle are installed on one side of the U-shaped frame, a telescopic mechanism is movably installed on the top of the U-shaped frame, an electromagnetic induction meter for the thickness of a steel bar protective layer with a detection probe is movably installed on the top of the telescopic mechanism, and a measuring instrument rotating mechanism installed on the support frame is provided on one side of the opening of the U-shaped frame.

[0006] As a preferred embodiment, the telescopic mechanism includes telescopic columns 1, 2, 3, and 4, each of which has a telescopic slot on one side. Telescopic column 1 is slidably connected to the telescopic slot of telescopic column 2, telescopic column 2 is slidably connected to the telescopic slot on telescopic column 3, and telescopic column 3 is slidably connected to the telescopic slot on telescopic column 4. A drive slot is provided on one side of the telescopic slot, and a drive member connected to the corresponding telescopic column 1, telescopic column 2, telescopic column 3 and telescopic column 4 is slidably connected in the drive slot. A drive motor 2 is installed on one side of the top of the telescopic column 1, telescopic column 2, telescopic column 3 and telescopic column 4. The output shaft of the drive motor 2 is connected to a transmission screw 1 rotatably connected to the drive slot, and the transmission screw 1 is spirally connected to the drive member; Ladder rods are also installed on the outer side walls of the telescopic column 1, telescopic column 2, telescopic column 3 and telescopic column 4.

[0007] As a preferred embodiment, the interior of the U-shaped frame is rotatably connected to the telescopic mechanism via a rotating shaft, and motion tracks are installed on both sides of the U-shaped frame. Motion rings are sleeved on the motion tracks, and the motion rings are fixed to the outermost side walls of the telescopic mechanism.

[0008] As a preferred embodiment, a slide groove is provided on both sides of the U-shaped frame, and a transmission screw rod 2 is rotatably connected in the slide groove. One end of the transmission screw rod 2 extends to one side of the U-shaped frame and a rotating handle is installed. A slider slidably connected in the slide groove is spirally connected on the transmission screw rod 2, and a transmission rod is hinged between the slider and the motion ring.

[0009] As a preferred embodiment, the measuring instrument rotation mechanism includes a semicircular clamping plate 1, a semicircular clamping plate 2 and a connecting piece; The semicircular clamping plate 1 and the semicircular clamping plate 2 are symmetrically arranged, one end of the semicircular clamping plate 1 and the semicircular clamping plate 2 are hinged to each other, and the other end of the semicircular clamping plate 1 and the semicircular clamping plate 2 are connected by a buckle, and the semicircular clamping plate 1 and the semicircular clamping plate 2 are both provided with clamping auxiliary parts, and the top ends of the semicircular clamping plate 1 and the semicircular clamping plate 2 are both installed with sliding rails; One end of the connecting piece is movably mounted on the support frame, and three sliding frames are installed on the other end of the connecting piece. The sliding frames are slidably connected with sliding rails. A driving motor 1 is installed on the side wall of the sliding frame. The output shaft of the driving motor 1 is connected to a driving gear located in the sliding frame. When the driving gear rotates, it drives the sliding rail to move in the sliding frame. The top of the sliding rail is provided with a tooth mouth that cooperates with the driving gear.

[0010] Furthermore, the clamping auxiliary part is a fixing bolt, and a plurality of threaded holes are opened on the semicircular clamping plate 1 and the semicircular clamping plate 2, and the fixing bolts are threadedly connected in the threaded holes.

[0011] Furthermore, the thickness of the semicircular clamping plate 1 and the semicircular clamping plate 2 is smaller than the thickness of the sliding track, the cross section of the sliding frame is an inverted U shape, and limiting protrusions are provided on both sides of the bottom end of the sliding frame.

[0012] As a preferred embodiment, the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer is connected to a detection probe via a wire, and the detection probe is magnetically adsorbed on the housing of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer; Extension parts are provided on both sides of the shell of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer. Fixing holes are opened on the extension parts, and the fixing holes are installed on the top of the telescopic mechanism through fixing screws.

[0013] Furthermore, a groove is provided on the top telescopic column of the telescopic mechanism, and a non-powered telescopic rod is connected to the bottom end of the electromagnetic induction measuring instrument for thickness of steel bar protective layer, and the non-powered telescopic rod is located in the groove.

[0014] As a preferred embodiment, multiple annular frames are installed on one side of the U-shaped frame, the batteries are fixed in the annular frames, and a placement box is fixed on the top of the annular frames. A remote control handle wirelessly connected to the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer is placed in the placement box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention proposes a remotely controlled mobile device for measuring the thickness of steel bar protective layer. By setting a telescopic mechanism, the electromagnetic induction measuring instrument for measuring the thickness of steel bar protective layer can be quickly moved to positions at different heights to meet different measurement requirements. At the same time, in order to further meet the needs of measuring different angles, the telescopic mechanism is rotatably installed on the base. Through the cooperation of the motion track, motion ring, rotating handle, slide groove, transmission screw 2, slider and transmission rod and other structures, the measuring angle of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer on the telescopic mechanism can be controlled to change, further meeting the needs of complex measurement scenarios; The telescopic mechanism is also provided with a ladder rod, through which workers can climb. In some places with high heights or where mechanical work is inconvenient, the electromagnetic induction measuring instrument of the thickness of the steel bar protective layer is aimed at the position to be measured, which can achieve better measurement results. This ladder rod can also be used to meet the climbing needs of other work.

[0016] 2. This invention proposes a remotely controlled, movable device for measuring the thickness of steel bar protective layers. By providing a rotating mechanism for the measuring instrument, it can be coordinated with other structures of the device to achieve annular measurement of cylindrical building structures. The semicircular clamping plate 1 and the semicircular clamping plate 2 on the rotating mechanism of the measuring instrument are easy to install and fix, and through the setting of fixing bolts, they can be used to fix various irregular or diameter cylindrical building structures, and under the action of the driving motor 1 and the driving gear, the measuring instrument is driven to rotate around the cylindrical building structure at a uniform speed.

[0017] The device is easy to move and fix, and can drive the measuring instrument to realize measurement of various positions and angles, with good measurement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a remotely controlled mobile device for measuring the thickness of a steel bar protective layer proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the local structure; Figure 3 for Figure 2 Schematic diagram of the structure of the transmission part of the middle motion ring; Figure 4 This is a schematic structural diagram of a telescopic mechanism of a remotely controlled movable device for measuring the thickness of a steel bar protective layer and an electromagnetic induction measuring instrument for measuring the thickness of a steel bar protective layer at an angle, as proposed by the present invention; Figure 5 This is a schematic structural diagram of the telescopic mechanism of the remote-controlled mobile steel bar protective layer thickness measuring device and the electromagnetic induction measuring instrument for steel bar protective layer thickness from another angle proposed by the present invention; Figure 6 This is a schematic diagram of the connection between the telescopic column 4, the transmission screw 1 and the driving member in the telescopic mechanism of the remote control movable measuring device for measuring the thickness of the steel bar protective layer proposed by the present invention; Figure 7 This is a schematic structural diagram of a remotely controlled and movable steel bar protective layer thickness measuring device and a non-powered telescopic rod; Figure 8 This is a schematic diagram of the rotating mechanism structure of a measuring instrument for measuring the thickness of a steel bar protective layer that can be remotely moved and measured according to the present invention; Figure 9 for Figure 8 Schematic diagram of the local structure in; Figure 10 for Figure 8 Schematic diagram of the connection between the semicircular clamping plate 1, the semicircular clamping plate 2 and the fixing bolts; Figure 11 This is a structural diagram of the telescopic mechanism in Example 4.

[0019] Figure: 1. Battery; 2. Universal wheel; 3. U-shaped frame; 4. Support frame; 5. Measuring instrument rotation mechanism; 501. Sliding frame; 502. Connector; 503. Driving motor 1; 504. Driving gear; 505. Sliding track; 506. Semicircular clamping plate 1; 507. Semicircular clamping plate 2; 508. Fixing bolt; 6. Electromagnetic induction measuring instrument for thickness of steel bar protective layer; 601. Detection probe; 602. Fixing screw; 7. Telescopic mechanism Structure; 701, telescopic column one; 702, telescopic column two; 703, telescopic column three; 704, telescopic column four; 705, drive motor two; 706, transmission screw one; 707, drive member; 708, ladder rod; 8, push handle; 9, placement box; 10, remote control handle; 11, motion track; 12, motion ring; 13, rotating handle; 14, slide; 15, transmission screw two; 16, slider; 17, transmission rod; 18, unpowered telescopic rod. DETAILED DESCRIPTION

[0020] The following describes in detail a remotely controlled, movable device for measuring the thickness of a steel bar protective layer provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0021] It should be noted that while references in the specification to "Example 1," "Example 2," "Example 3," and "Example 4" may include specific features, structures, or characteristics, not every embodiment necessarily includes such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of those skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0022] Example 1, with reference to Figure 1-10 A remote-controlled mobile device for measuring the thickness of a steel bar protective layer comprises a base consisting of a U-shaped frame 3 and two support frames 4. Support frames 4 are installed on both sides of the bottom end of the U-shaped frame 3. Universal wheels 2 with a locking function are installed on both sides of the bottom end of the support frames 4. A battery 1 and a push handle 8 are installed on one side of the U-shaped frame 3. A telescopic mechanism 7 is movably installed on the top of the U-shaped frame 3. An electromagnetic induction measuring instrument 6 for the thickness of a steel bar protective layer with a detection probe 601 is movably installed on the top of the telescopic mechanism 7.

[0023] The telescopic mechanism 7 includes a telescopic column 1 701, a telescopic column 2 702, a telescopic column 3 703, and a telescopic column 4 704, each of which has a telescopic slot on one side. The telescopic column 1 701 is slidably connected to the telescopic slot of the telescopic column 2 702, the telescopic column 2 702 is slidably connected to the telescopic slot on the telescopic column 3 703, and the telescopic column 3 703 is slidably connected to the telescopic slot on the telescopic column 4 704. A driving groove is provided on one side of the telescopic groove, and a driving member 707 connected to the corresponding telescopic column 1 701, telescopic column 2 702, telescopic column 3 703 and telescopic column 4 704 is slidably connected in the driving groove. A driving motor 2 705 is installed on one side of the top of the telescopic column 1 701, telescopic column 2 702, telescopic column 3 703 and telescopic column 4 704. The output shaft of the driving motor 2 705 is connected to a transmission screw 1 706 which is rotatably connected in the driving groove. The transmission screw 1 706 is spirally connected to the driving member 707. After the telescopic mechanism 7 is completely retracted, the four telescopic columns are all retracted into the telescopic column 4 704, occupying a very small structural space and convenient for movement.

[0024] The interior of the U-shaped frame 3 is rotatably connected to the telescopic mechanism 7 through a rotating shaft, and moving tracks 11 are installed on both sides of the U-shaped frame 3, and a moving ring 12 is sleeved on the moving track 11, and the moving ring 12 is fixed to the outermost side wall of the telescopic mechanism 7. Both sides of the U-shaped frame 3 are provided with a slide groove 14, and a transmission screw rod 2 15 is rotatably connected in the slide groove 14. One end of the transmission screw rod 2 15 extends to one side of the U-shaped frame 3 and a rotating handle 13 is installed. The transmission screw rod 2 15 is spirally connected to a slider 16 slidably connected in the slide groove 14, and a transmission rod 17 is hinged between the slider 16 and the moving ring 12. By rotating the rotating handle 13 on one side of the transmission screw rod 2 15, the transmission screw rod 2 15 is threadedly connected to the slider 16, driving the slider 16 to slide in the slide groove 14, and the slider 16 drives the moving ring 12 to slide on the moving track 11 through the transmission rod 17, thereby driving the telescopic mechanism 7 to rotate on the U-shaped frame 3, thereby meeting the needs of different measurement angles.

[0025] The electromagnetic induction measuring instrument 6 for the thickness of the steel bar protective layer is connected to a detection probe 601 via a wire, and the detection probe 601 is magnetically adsorbed on the housing of the electromagnetic induction measuring instrument 6 for the thickness of the steel bar protective layer. This fixing method allows the position of the detection probe 601 to be quickly changed according to the detection angle requirements of the detection probe 601, thereby meeting the needs of measuring in different orientations. Extensions are provided on both sides of the shell of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer 6, and fixing holes are opened on the extensions. The fixing holes are installed on the top of the telescopic mechanism 7 through fixing screws 602. The electromagnetic induction measuring instrument for the thickness of the steel bar protective layer 6 can be disassembled and assembled by removing the fixing screws 602.

[0026] Multiple annular frames are installed on one side of the U-shaped frame 3, and the battery 1 is fixed in the annular frame. A placement box 9 is fixed on the top of the annular frame. A remote control handle 10 wirelessly connected to the electromagnetic induction measuring instrument 6 for the thickness of the steel bar protective layer is placed in the placement box 9. The wireless connection method can be Bluetooth connection, Wi-Fi connection, etc. The battery 1 can provide power for the electromagnetic induction measuring instrument 6 for the thickness of the steel bar protective layer and the drive motor 1 503 and the drive motor 2 705.

[0027] This device utilizes a lightweight yet sturdy material (such as aluminum alloy or carbon fiber) to construct its main frame, ensuring portability and durability. Its compact structure facilitates operation in confined spaces while maintaining sufficient stability for measurement work. Lockable universal wheels 2 are installed at the bottom, allowing for easy mobility across various surfaces. The device is easily moved by pushing a handle 8, making it easy to operate. It utilizes electromagnetic induction to perform non-contact measurement of rebar cover thickness. The sensor should be highly sensitive and capable of accurately identifying rebars of varying diameters and depths. The detection probe 601 is mounted on a telescopic mechanism 7 that can be raised or rotated to accommodate measurement needs at various positions and angles. The device also features a built-in processor that processes sensor data in real time, calculates rebar cover thickness, and reduces human error. The remote control handle 10 features a display and user interface that intuitively displays measurement results. A simple menu allows users to set parameters and view historical data. Bluetooth or Wi-Fi is supported for real-time data transmission to a smartphone or computer, facilitating data management and analysis.

[0028] Example 2, as Figure 1 、 Figure 8 、 Figure 9 and Figure 10 As shown, the difference from Example 1 is that a measuring instrument rotating mechanism 5 mounted on a support frame 4 is provided on one side of the opening of the U-shaped frame 3, and the measuring instrument rotating mechanism 5 includes a semicircular clamping plate 1 506, a semicircular clamping plate 2 507 and a connecting member 502; The semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 are symmetrically arranged. One end of the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 are hinged to each other, and the other end of the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 are connected by a buckle. The semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 are both provided with clamping auxiliary parts, and the top ends of the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 are both installed with sliding rails 505. One end of the connecting member 502 is movably mounted on the support frame 4, and the installation method can be a variety of connection methods such as screw connection, lock connection, pin connection, etc. Three sliding frames 501 are installed on the other end of the connecting member 502, and a sliding rail 505 is slidably connected inside the sliding frame 501. A driving motor 503 is installed on the side wall of the sliding frame 501, and the output shaft of the driving motor 503 is connected to the driving gear 504 located in the sliding frame 501. When the driving gear 504 rotates, it drives the sliding rail 505 to move in the sliding frame 501. The top of the sliding rail 505 is provided with a tooth mouth that cooperates with the driving gear 504.

[0029] The clamping auxiliary part is a fixing bolt 508. A plurality of threaded holes are formed on the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507. The fixing bolts 508 are threadedly connected in the threaded holes.

[0030] The thickness of the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 is smaller than the thickness of the sliding rail 505. The cross-section of the sliding frame 501 is an inverted U-shape, and limiting protrusions are provided on both sides of the bottom end of the sliding frame 501. When the sliding rail 505 rotates in the sliding frame 501, it has no effect on the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507.

[0031] When in use, unfasten the buckles on the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507, then circle them on the building column that needs to be tested, and then fasten the buckles to fix the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507. At the same time, the semicircular clamping plate 1 506 and the semicircular clamping plate 2 507 drive the sliding track 505 thereon to form a ring, and then tighten the fixing bolt 508 to achieve the connection and fixation between the measuring instrument rotating mechanism 5 and the building column, start the drive motor 1 503, and the drive motor 1 503 drives the drive gear 504 to rotate, and the drive gear 504 rotates on the sliding track 505, thereby driving the device to rotate around the building column under the action of the universal wheel 2, thereby achieving annular measurement of the building column.

[0032] Example 3, as Figure 7 As shown, the difference from Example 2 is that a groove is provided on the top telescopic column 701 of the telescopic mechanism 7, and the bottom end of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer 6 is connected with a non-powered telescopic rod 18, which is located in the groove. In some places where it is inconvenient for mechanical work, the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer 6 can be removed from the device, and then moved by the non-powered telescopic rod 18, thereby further meeting the needs of various application scenarios.

[0033] Example 4, as Figure 11 As shown, what is different from Example 3 is that ladder rods 708 are further installed on the outer walls of telescopic column 1 701, telescopic column 2 702, telescopic column 3 703 and telescopic column 4 704. The ladder rods 708 are evenly installed on one side of the telescopic mechanism 7. The sizes of the ladder rods 708 on different telescopic columns gradually change with the size of the telescopic column and with the expansion or scaling of the telescopic mechanism 7. When in use, the staff can climb through the ladder rods 708, and then use the handheld unpowered telescopic rod 18 to aim the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer at the position to be measured in some places with high heights or inconvenient mechanical work, so that the measurement effect is better. This ladder rod 708 can also be used to meet the climbing needs of other work.

[0034] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A remotely controlled movable device for measuring the thickness of a steel bar protective layer, comprising a base consisting of a U-shaped frame (3) and two support frames (4), characterized in that: Support frames (4) are installed on both sides of the bottom end of the U-shaped frame (3), universal wheels (2) with a locking function are installed on both sides of the bottom end of the support frame (4), a battery (1) and a push handle (8) are installed on one side of the U-shaped frame (3), a telescopic mechanism (7) is movably installed on the top end of the U-shaped frame (3), and an electromagnetic induction measuring instrument (6) for the thickness of the steel bar protective layer with a detection probe (601) is movably installed on the top end of the telescopic mechanism (7), and a measuring instrument rotating mechanism (5) installed on the support frame (4) is provided on one side of the opening of the U-shaped frame (3).

2. The remote control movable measuring device for measuring the thickness of steel bar protective layer according to claim 1, characterized in that: The telescopic mechanism (7) comprises a telescopic column 1 (701), a telescopic column 2 (702), a telescopic column 3 (703) and a telescopic column 4 (704), each of which has a telescopic slot on one side. The telescopic column 1 (701) is slidably connected in the telescopic slot of the telescopic column 2 (702), the telescopic column 2 (702) is slidably connected in the telescopic slot on the telescopic column 3 (703), and the telescopic column 3 (703) is slidably connected in the telescopic slot on the telescopic column 4 (704). A drive slot is provided on one side of the telescopic slot, and a drive member (707) connected to the corresponding telescopic column 1 (701), telescopic column 2 (702), telescopic column 3 (703) and telescopic column 4 (704) is slidably connected in the drive slot. A drive motor 2 (705) is installed on one side of the top of the telescopic column 1 (701), telescopic column 2 (702), telescopic column 3 (703) and telescopic column 4 (704). The output shaft of the drive motor 2 (705) is connected to a transmission screw rod 1 (706) rotatably connected in the drive slot, and the transmission screw rod 1 (706) is connected to the drive member (707) by spiral transmission. A ladder rod (708) is also installed on the outer side walls of the telescopic column 1 (701), the telescopic column 2 (702), the telescopic column 3 (703) and the telescopic column 4 (704).

3. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 1, characterized in that: The interior of the U-shaped frame (3) is rotatably connected to the telescopic mechanism (7) via a rotating shaft, and motion tracks (11) are installed on both sides of the U-shaped frame (3). A motion ring (12) is sleeved on the motion track (11), and the motion ring (12) is fixed to the outermost side wall of the telescopic mechanism (7).

4. A remotely controlled movable device for measuring the thickness of a steel bar protective layer according to claim 3, characterized in that: Both sides of the U-shaped frame (3) are provided with a slide groove (14), and a second transmission screw rod (15) is rotatably connected in the slide groove (14). One end of the second transmission screw rod (15) extends to one side of the U-shaped frame (3) and is installed with a rotating handle (13). The second transmission screw rod (15) is spirally connected to a slider (16) slidably connected in the slide groove (14), and a transmission rod (17) is hinged between the slider (16) and the motion ring (12).

5. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 1, characterized in that: The measuring instrument rotating mechanism (5) comprises a semicircular clamping plate 1 (506), a semicircular clamping plate 2 (507) and a connecting member (502); The semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) are symmetrically arranged, one end of the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) are hinged to each other, and the other end of the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) are connected by a buckle, and the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) are both provided with clamping auxiliary parts, and the top ends of the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) are both installed with sliding rails (505); One end of the connecting member (502) is movably mounted on the support frame (4), and three sliding frames (501) are mounted on the other end of the connecting member (502). Sliding rails (505) are slidably connected in the sliding frames (501). A driving motor (503) is mounted on the side wall of the sliding frame (501). The output shaft of the driving motor (503) is connected to a driving gear (504) located in the sliding frame (501). When the driving gear (504) rotates, it drives the sliding rails (505) to move in the sliding frame (501).

6. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 5, characterized in that: The clamping auxiliary part is a fixing bolt (508), and a plurality of threaded holes are formed on the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507), and the fixing bolts (508) are threadedly connected in the threaded holes.

7. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 5, characterized in that: The thickness of the semicircular clamping plate 1 (506) and the semicircular clamping plate 2 (507) is less than the thickness of the sliding track (505), the cross-section of the sliding frame (501) is an inverted U-shape, and limiting protrusions are provided on both sides of the bottom end of the sliding frame (501).

8. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 1, characterized in that: The electromagnetic induction measuring instrument (6) for the thickness of the steel bar protective layer is connected to a detection probe (601) via a wire, and the detection probe (601) is magnetically adsorbed on the housing of the electromagnetic induction measuring instrument (6) for the thickness of the steel bar protective layer; Extensions are provided on both sides of the outer shell of the electromagnetic induction measuring instrument for the thickness of the steel bar protective layer (6). The extensions are provided with fixing holes, and the fixing holes are installed on the top of the telescopic mechanism (7) through fixing screws (602).

9. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 8, characterized in that: A groove is formed on the top telescopic column (701) of the telescopic mechanism (7), and a non-powered telescopic rod (18) is connected to the bottom end of the electromagnetic induction measuring instrument (6) for thickness of steel bar protective layer, and the non-powered telescopic rod (18) is located in the groove.

10. The remote control movable device for measuring the thickness of steel bar protective layer according to claim 1, characterized in that: A plurality of annular frames are installed on one side of the U-shaped frame (3), the battery (1) is fixed in the annular frame, a placement box (9) is fixed on the top of the annular frame, and a remote control handle (10) wirelessly connected to the electromagnetic induction measuring instrument (6) for measuring the thickness of the steel bar protective layer is placed in the placement box (9).

Images