Insulation detection device and method for track plate steel bar skeleton

Abstract

The present application discloses an insulation detection device and method for a steel bar skeleton of a track plate, wherein the insulation detection device comprises a support frame, a probe detection mechanism and a probe rod detection mechanism; the probe detection mechanism comprises a first support beam fixed on the top of the support frame, the first support beam is provided with a longitudinal slide rail and a slider movable along the longitudinal slide rail, a first lifting rod is provided inside the slider, and a probe is provided at the end of the first lifting rod; the probe rod detection mechanism comprises a second support beam fixed on the top of the support frame, the second support beam is provided with a second lifting rod, and the end of the second lifting rod is rotatably connected with a probe rod distributed along the longitudinal direction. In the insulation detection process of the present application, the track plate mold does not need to stop at the detection station, and the insulation detection can be completed during the transportation of the track plate mold, and the detection process can be automatically and accurately controlled through the probe detection mechanism and the probe rod detection mechanism, thereby improving the efficiency and accuracy of insulation detection, thereby improving the production efficiency of the track plate.

Description

Technical Field

[0001] The present application relates to the technical field of track plate production, and in particular to an insulation detection device and method for a track plate steel bar skeleton. Background Art

[0002] Most of the high-speed railway construction in my country uses ballastless track slabs. The ballastless track slab is a reinforced concrete structure. The track slab steel frame skeleton is formed by interweaving transverse and longitudinal steel bars. Since the longitudinal and planar closed loops of the steel bars will generate magnetic fields, thereby affecting the transmission performance of the resonant non-insulated track circuit, the track slab steel frame must be insulated to minimize or eliminate the closed loop formed by the steel bars inside the track slab.

[0003] At present, in the insulation test of the steel bar skeleton of the track plate, the resistance value between each transverse steel bar and each longitudinal steel bar must reach more than 2 megohms. Otherwise, it is necessary to manually use a megohmmeter to test the intersections of the steel bars one by one, find out the unqualified intersections, add insulation gaskets and tie them tightly, and only move on to the next process after they are qualified. However, this method is inefficient, time-consuming and labor-intensive, and is prone to omissions, and the detection accuracy cannot be guaranteed. Summary of the invention

[0004] The present application provides an insulation detection device and method for a track plate steel reinforcement skeleton, so as to solve the problems of low detection efficiency and detection accuracy of existing insulation detection methods.

[0005] In a first aspect, the present application provides an insulation detection device for a track plate steel bar skeleton, comprising a support frame, a probe detection mechanism and a probe rod detection mechanism;

[0006] The probe detection mechanism comprises a first support beam fixed on the top of the support frame, the first support beam is provided with a longitudinal slide rail and a slider movable along the longitudinal slide rail, a first lifting rod is provided inside the slider, and a probe is provided at the end of the first lifting rod;

[0007] The probe rod detection mechanism comprises a second support beam fixed on the top of the support frame, a second lifting rod is arranged on the second support beam, and a probe rod distributed along the longitudinal direction is rotatably connected to the end of the second lifting rod.

[0008] Optionally, the first lifting rod is provided with a first lifting rail along the vertical direction, and first sliding grooves are provided on the side walls on both sides of the slider; the first lifting rail cooperates with the first sliding groove to enable the first lifting rod to slide up and down inside the slider.

[0009] Optionally, the probe detection mechanism further includes a translation motor and a first lifting motor, the translation motor is connected to the slider, and the first lifting motor is connected to the first lifting rod.

[0010] Optionally, the second support beam is provided with a fixed block, the side walls on both sides of the fixed block are provided with second slide grooves, and the second lifting rod is provided with a second lifting rail along the vertical direction; the second lifting rail cooperates with the second slide groove to enable the second lifting rod to slide up and down inside the fixed block.

[0011] Optionally, the probe rod detection mechanism further includes a second lifting motor and a rotating motor, wherein the second lifting motor is connected to the second lifting rod; and the rotating motor is connected to the probe rod.

[0012] Optionally, the probe rod includes a rotating connecting rod and a detection rod; the detection rod is distributed along the longitudinal direction and vertically connected to the rotating connecting rod; and a card slot is provided at the bottom of the detection rod along the longitudinal direction.

[0013] Optionally, the insulation detection device further comprises a transport vehicle, which is used to transport the track plate mold to the bottom of the support frame, so that the steel skeleton on the surface of the track plate mold is moved below the probe detection mechanism and the probe rod detection mechanism.

[0014] In a second aspect, the present application provides a method for detecting insulation of a track plate steel reinforcement skeleton, the method comprising:

[0015] When the transport vehicle loaded with the track plate mold moves in the detection station, the first lifting rod is adjusted to make the probe contact with the steel bar skeleton; initially, the slider is located at the beginning of the longitudinal slide rail;

[0016] Repeatingly controlling the slider to move from the beginning to the end of the longitudinal slide rail, and recording the insulation detection value of each detection point returned by the probe;

[0017] Adjust the second lifting rod and the probe rod so that the probe rod contacts the longitudinal steel bars of the steel skeleton, and record the insulation detection value of each longitudinal steel bar in the steel skeleton returned by the probe rod;

[0018] The insulation test values ​​of the detection points and the insulation test values ​​of the longitudinal steel bars are compared with standard values ​​to determine the insulation of the steel bar skeleton.

[0019] The present application has the following beneficial effects: in the probe detection mechanism, by adjusting the first lifting rod, the working height of the probe can be adjusted so that the probe can contact the steel skeleton, and the relative position of the probe in the longitudinal direction can be adjusted by the slider to achieve detection point measurement; in the probe rod detection mechanism, by adjusting the second lifting rod and the probe rod, the probe rod can contact each longitudinal steel bar, thereby measuring the insulation detection value on each longitudinal steel bar. By comparing the insulation detection value measured by the probe and the probe rod with the standard value, it can be determined whether the insulation of the steel skeleton is qualified. In the insulation detection process of the present application, the track plate mold does not need to stop at the detection station, and the insulation detection can be completed during the transportation of the track plate mold. In addition, through the probe detection mechanism and the probe rod detection mechanism, the detection process can be automatically and accurately controlled, which improves the efficiency and accuracy of insulation detection, thereby improving the production efficiency of the track plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of an insulation detection device for a track plate steel bar skeleton shown in an embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of an insulation detection device from another angle shown in an embodiment of the present application;

[0023] Figure 3 The embodiment of the present application shows Figure 2 A partial enlarged view of part A;

[0024] Figure 4 A flow chart of a method for detecting insulation of a track slab reinforcement skeleton shown in an embodiment of the present application.

[0025] Legend:

[0026] 1-support frame; 2-probe detection mechanism, 201-first support beam, 202-longitudinal slide rail, 203-slider, 204-first lifting rod, 205-probe, 206-first lifting slide rail, 207-first slide slot, 208-translation motor, 209-first lifting motor; 3-probe rod detection mechanism, 301-second support beam, 302-second lifting rod, 303-probe rod, 304-fixed block, 305-second slide slot, 306-second lifting slide rail, 307-second lifting motor, 308-rotating motor, 3031-rotating connecting rod, 3032-detection rod, 3033-slot; 4-transport vehicle; 5-track plate mold; 6-steel skeleton, 601-longitudinal steel bar, 602-transverse steel bar; 7-detection point. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, the embodiment of the present application provides an insulation detection device for a steel bar skeleton of a track plate, which as a whole includes a support frame 1, a probe detection mechanism 2 and a probe rod detection mechanism 3, and the probe detection mechanism 2 and the probe rod detection mechanism 3 are both installed on the support frame 1. The steel bar skeleton may include longitudinal steel bars 601 and transverse steel bars 602. Since the longitudinal and planar closed loops of the steel bars will generate a magnetic field, thereby affecting the transmission characteristics of the resonant non-insulated track circuit, in order to eliminate the closed loop formed by the steel bars inside the track plate and ensure the insulation of the steel bar skeleton, the present application adopts the probe detection mechanism 2 to realize the point measurement of the insulation of the steel bar skeleton surface, and the probe rod detection mechanism 3 to realize the insulation detection of each longitudinal steel bar of the steel bar skeleton, so that the detection result is more accurate and reliable.

[0029] The track plate described in the present application may be, for example, a CRTSI II type plate, i.e. a type III plate, or other types of track plates requiring insulation testing. The track plate is placed in a track plate mold and enters the testing station of the device with the mold for insulation testing.

[0030] like Figure 1-Figure 3As shown, the probe detection mechanism 2 includes a first support beam 201 fixed on the top of the support frame 1, and the first support beam 201 is provided with a longitudinal slide rail 202 and a slider 203 that can move along the longitudinal slide rail 202, and a first lifting rod 204 is provided inside the slider 203, and a probe 205 is provided at the end of the first lifting rod 204, and the first support beam 201 and the longitudinal slide rail 202 are parallel to the longitudinal steel bars 601 of the steel frame 6.

[0031] By adjusting the position of the slider 203 on the longitudinal slide rail 202, the first lifting rod 204 can be made to translate longitudinally with the slider 203, thereby driving the probe 205 to move longitudinally; after entering the detection station of the device, the track plate mold 5 will keep moving in the lateral direction, so that there is a relative lateral displacement between the probe 205 and the steel skeleton 6; the first lifting rod 204 adjusts the working height of the probe 205 by moving up and down inside the slider 203, ensuring that the probe 205 can contact the surface point of the steel skeleton 6, thereby realizing the measurement of the insulation detection value at different detection points. The insulation detection value described in this embodiment can be a parameter type such as resistance value (megohm).

[0032] In the specific implementation, the first lifting rod 204 is provided with a first lifting rail 206 in the vertical direction, and a first slide groove 207 is provided on the side walls on both sides of the slider 203; the first lifting rail 206 cooperates with the first slide groove 207 to enable the first lifting rod 204 to slide up and down inside the slider 203 to realize the lifting and lowering of the probe 205, and the cooperation between the first lifting rail 206 and the first slide groove 207 can also play a limiting role, ensuring that the first lifting rod 204 can only move up and down along the slider 203 without shaking, thereby ensuring the stability of the lifting and lowering control of the probe 205.

[0033] The probe detection mechanism 2 also includes a translation motor 208 and a first lifting motor 209. The translation motor 208 is connected to the slider 203, and the first lifting motor 209 is connected to the first lifting rod 204. That is, the translation motor 208 is used to control the sliding of the slider 203 along the longitudinal slide rail 202, and the first lifting motor 209 is used to control the lifting and lowering of the first lifting rod 204, thereby providing driving force for the translation and lifting of the probe 205.

[0034] The probe rod detection mechanism 3 includes a second support beam 301 fixed on the top of the support frame 1, and a second lifting rod 302 is provided on the second support beam 301. The end of the second lifting rod 302 is rotatably connected to a probe rod 303 distributed along the longitudinal direction, that is, the second support beam 301 and the probe rod 303 are parallel to the longitudinal steel bar 601.

[0035] The second lifting rod 302 can move up and down, and the probe rod 303 can rotate relatively along the end of the second lifting rod 302. By lifting and rotating the probe rod 303, the working height and position of the probe rod 303 are adjusted to ensure that the probe rod 303 can contact the longitudinal steel bar 601, thereby measuring the insulation detection value of the longitudinal steel bar 601. After entering the detection station of the device, the track plate mold 5 will keep moving in the lateral direction, so that there is a relative displacement in the lateral direction between the probe rod 303 and the steel bar skeleton 6, so that during the movement of the track plate mold 5, the longitudinal steel bar 601 measured by the probe rod 303 is switched to realize the insulation detection of each longitudinal steel bar 601 on the steel bar skeleton 6. The probe rod 303 does not need to be translated in the longitudinal direction, and the entire longitudinal steel bar 601 can be measured at one time.

[0036] In the specific implementation, the second support beam 301 is provided with a fixed block 304, and the side walls on both sides of the fixed block 304 are provided with second slide grooves 305, and the second lifting rod 302 is provided with a second lifting rail 306 in the vertical direction; the second lifting rail 306 cooperates with the second slide groove 305 to enable the second lifting rod 302 to slide up and down inside the fixed block 304 to realize the lifting and lowering of the probe rod 303, and the cooperation between the second lifting rail 306 and the second slide groove 305 can also play a limiting role, ensuring that the second lifting rod 302 can only move up and down along the fixed block 304 without shaking, thereby ensuring the stability of the lifting and lowering control of the probe rod 303.

[0037] The probe rod detection mechanism 3 also includes a second lifting motor 307 and a rotating motor 308. The second lifting motor 307 is connected to the second lifting rod 302, and the rotating motor 308 is connected to the probe rod 303. That is, the lifting and lowering of the second lifting rod 302 is controlled by the second lifting motor 307, and the rotation of the probe rod 303 is controlled by the rotating motor 308, thereby providing driving force for the lifting and rotation of the probe rod 303.

[0038] In an optional solution of this embodiment, the probe rod 303 includes a rotating connecting rod 3031 and a detection rod 3032, that is, the second lifting rod 302 is connected to the detection rod 3032 through the rotating connecting rod 3031, the second lifting rod 302 and the rotating connecting rod 3031 are rotatably mechanically connected, the rotating connecting rod 3031 is connected to the rotating motor 308, the detection rod 3032 is distributed along the longitudinal direction, and the detection rod 3032 is vertically connected to the rotating connecting rod 3031. The rotating motor 308 drives the rotating connecting rod 3031 to rotate, thereby adjusting the position and height of the detection rod 3032. The detection rod 3032 always remains parallel to the longitudinal steel bar 601 during the movement. The detection rod 3032 directly contacts the longitudinal steel bar 601 to measure the insulation detection value of the longitudinal steel bar 601, and the size of the detection rod 3032 can be adapted to the longitudinal steel bar 601.

[0039] A slot 3033 is provided at the bottom of the detection rod 3032 along the longitudinal direction. The slot 3033 can ensure the tightness of the contact between the detection rod 3032 and the longitudinal steel bar 601, while ensuring that the detection rod 3032 will not contact the transverse steel bar 602, thereby improving the accuracy and reliability of the measurement result of the detection rod 3032.

[0040] In the insulation detection process of this embodiment, the track plate mold 5 keeps running horizontally at a certain speed without stopping, so the insulation detection device can also include a transport vehicle 4, which can be an AGV (Automated Guided Vehicle). The transport vehicle 4 is used to transport the track plate mold 5 to the bottom of the support frame 1, so that the steel skeleton 6 on the surface of the track plate mold 5 moves to the bottom of the probe detection mechanism 2 and the probe rod detection mechanism 3, that is, the transport vehicle 4 sends the steel skeleton 6 to the detection station, and the probe detection mechanism 2 and the probe rod detection mechanism 3 perform insulation detection until the transport vehicle 4 sends the track plate mold 5 away from the detection station and sends it to the next process, then the insulation detection of the steel skeleton 6 in the track plate mold 5 is completed. In practical applications, the track plate mold 5 is not limited to the transportation mode of the transport vehicle, for example, a transportation device such as a belt conveyor can also be used.

[0041] In this embodiment, the insulation detection device may further include a control system, which is used to control the operation of the probe detection mechanism 2 and the probe rod detection mechanism 3, and to determine whether the insulation of the steel skeleton 6 is qualified according to the insulation detection values ​​returned by the probe detection mechanism 2 and the probe rod detection mechanism 3. The control system may be in the form of a PLC (Programmable Logic Controller), a computer control system, or a bus control. The control system may be electrically connected to the translation motor 208, the first lifting motor 209, the second lifting motor 307, the rotating motor 308, the probe 205, and the probe rod 303, respectively, and the actions of various electrical components may be controlled by software to realize the above insulation detection process.

[0042] Corresponding to the aforementioned insulation detection device, this embodiment also provides a method for detecting insulation of a track plate steel bar skeleton, that is, the control system is configured to execute method program steps, such as Figure 4 As shown, the method includes:

[0043] Step S10, when the transport vehicle loaded with the track plate mold moves in the detection station, the first lifting rod is adjusted to make the probe contact with the steel bar skeleton; initially, the slider is located at the beginning of the longitudinal slide rail.

[0044] The transport vehicle 4 runs in the horizontal direction at a certain speed. The horizontal direction mentioned here corresponds to the length direction of the horizontal steel bar 602. For example, when the transport vehicle 4 transports the track plate mold 5 from right to left to the detection station, the control system can control the start and operation of the first lifting motor 209 to adjust the lifting and lowering of the first lifting rod 204, thereby adjusting the working height of the probe 205 so that the probe 205 can touch the steel bar skeleton 6. Initially, that is, when the track plate mold 5 just enters the detection station, the slider 203 is located at one end of the longitudinal slide rail 202, which is named the starting end for easy distinction, and the other end of the longitudinal slide rail 202 is the end.

[0045] Step S20, repeatedly controlling the slider to move from the beginning to the end of the longitudinal slide rail, and recording the insulation detection value of each detection point returned by the probe.

[0046] Since the horizontal height of each part of the surface of the steel frame 6 does not change much, when the working height adjustment of the probe 205 is completed, the control system can control the first lifting motor 209 to turn off, so that the working height of the probe 205 remains unchanged. The control system controls the start and operation of the translation motor 208, so that the translation motor 208 drives the slider 203 to move from the beginning to the end of the longitudinal slide rail 202, and cooperates with the movement of the transport vehicle 4 to form a series of contact points between the probe 205 and the steel frame 6 on the movement trajectory of the probe 205, that is, the detection points described in this embodiment (such as Figure 3 The probe 205 corresponds to the detection point 7), and each time a detection point is touched, the probe 205 returns an insulation detection value to the control system.

[0047] When the slider 203 moves to the end of the longitudinal slide rail 202, the control system controls the translation motor 208 to quickly slide the slider 203 back to the beginning of the longitudinal slide rail 202, and moves the slider 203 from the beginning to the end of the longitudinal slide rail 202 again in the above manner, and returns the insulation detection value corresponding to each detection point on the motion trajectory of the probe 205 to the control system, and so on, repeating the above process many times until the transport vehicle 4 sends the track plate mold 5 away from the inspection station, and the control system summarizes and records the insulation detection values ​​corresponding to all detection points.

[0048] Step S30, adjusting the second lifting rod and the probe rod so that the probe rod contacts the longitudinal steel bars of the steel skeleton, and recording the insulation detection value of each longitudinal steel bar in the steel skeleton returned by the probe rod.

[0049] Step S30 is executed simultaneously with step S20. Under the coordination of the movement of the transport vehicle 4, the control system adjusts the position and height of the detection rod 3032 in the probe rod 303 by controlling the operation of the second lifting motor 307 and the rotating motor 308, so that the detection rod 3032 contacts a whole longitudinal steel bar 601, and returns the insulation detection value corresponding to the longitudinal steel bar 601 to the control system. By analogy, the probe rod 303 traverses each longitudinal steel bar 601 in the steel bar skeleton 6 until the transport vehicle 4 sends the track plate mold 5 away from the detection station, and the control system summarizes and records the insulation detection value corresponding to each longitudinal steel bar 601 in the steel bar skeleton 6.

[0050] Step S40, comparing the insulation detection value of each detection point and the insulation detection value of each longitudinal steel bar with a standard value to determine the insulation property of the steel bar skeleton.

[0051] The control system compares the insulation detection values ​​of each detection point and each longitudinal steel bar 601 with the standard value. The standard value described here is the standard value set according to the insulation judgment standard. If the insulation detection value is greater than or equal to the standard value, the insulation of the steel skeleton 6 is considered qualified; otherwise, the insulation is unqualified, and the detection point / longitudinal steel bar corresponding to the insulation detection value less than the standard value can be insulated. After the insulation detection is completed, the transport vehicle 4 sends the track plate mold 5 away from the detection station and sends it to the next process.

[0052] It can be seen from the above technical scheme that in the insulation testing process of the present application, the track plate mold 5 does not need to stop running at the testing station, and the insulation testing can be completed during the transportation of the track plate mold 5, and through the probe detection mechanism 2 and the probe rod detection mechanism 3, automatic and precise control of the detection process is achieved, the detection process is stable and reliable, the efficiency and accuracy of the insulation detection are improved, and the production efficiency of the track plate is thereby improved.

[0053] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0054] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An insulation detection device for a track plate steel bar skeleton, It is characterized in that It comprises a support frame (1), a probe detection mechanism (2) and a probe rod detection mechanism (3); The probe detection mechanism (2) comprises a first support beam (201) fixed on the top of the support frame (1); a longitudinal slide rail (202) and a slider (203) movable along the longitudinal slide rail (202) are provided on the first support beam (201); a first lifting rod (204) is provided inside the slider (203); and a probe (205) is provided at the end of the first lifting rod (204); The first lifting rod (204) is adjusted to make the probe (205) contact the steel bar skeleton (6); initially, the slider (203) is located at the beginning of the longitudinal slide rail (202); Repeatedly controlling the slider (203) to move from the beginning to the end of the longitudinal slide rail (202), and recording the insulation detection value of each detection point returned by the probe (205); The probe rod detection mechanism (3) comprises a second support beam (301) fixed to the top of the support frame (1), a second lifting rod (302) being provided on the second support beam (301), and a probe rod (303) distributed in the longitudinal direction being rotatably connected to the end of the second lifting rod (302); adjusting the second lifting rod (302) and the probe rod (303) so that the probe rod (303) contacts the longitudinal steel bars (601) of the steel bar skeleton (6), and recording the insulation detection value of each longitudinal steel bar (601) in the steel bar skeleton (6) returned by the probe rod (303); The probe rod (303) comprises a rotating connecting rod (3031) and a detection rod (3032); the detection rod (3032) is distributed along the longitudinal direction and is vertically connected to the rotating connecting rod (3031); a card slot (3033) is provided at the bottom of the detection rod (3032) along the longitudinal direction; The probe rod detection mechanism (3) further comprises a second lifting motor (307) and a rotating motor (308); the second lifting motor (307) is connected to the second lifting rod (302); and the rotating motor (308) is connected to the probe rod (303).

2. The insulation detection device according to claim 1, It is characterized in that The first lifting rod (204) is provided with a first lifting rail (206) along the vertical direction, and first sliding grooves (207) are provided on the side walls on both sides inside the sliding block (203); the first lifting rail (206) cooperates with the first sliding groove (207) to enable the first lifting rod (204) to slide up and down inside the sliding block (203).

3. The insulation detection device according to claim 1 or 2, It is characterized in that The probe detection mechanism (2) further comprises a translation motor (208) and a first lifting motor (209); the translation motor (208) is connected to the slider (203); and the first lifting motor (209) is connected to the first lifting rod (204).

4. The insulation detection device according to claim 1, It is characterized in that The second support beam (301) is provided with a fixed block (304), and second slide grooves (305) are provided on the side walls on both sides of the fixed block (304). The second lifting rod (302) is provided with a second lifting rail (306) along the vertical direction; the second lifting rail (306) cooperates with the second slide groove (305) to enable the second lifting rod (302) to slide up and down inside the fixed block (304).

5. The insulation detection device according to claim 1, It is characterized in that It also comprises a transport vehicle (4), which is used to transport the track plate mould to the bottom of the support frame (1), so that the steel reinforcement skeleton on the surface of the track plate mould moves to below the probe detection mechanism (2) and the probe rod detection mechanism (3).

6. A method for detecting insulation of a track plate steel bar skeleton, applied to the insulation detection device according to any one of claims 1 to 5, It is characterized in that The method comprises: When the transport vehicle loaded with the track plate mold moves in the detection station, the first lifting rod is adjusted to make the probe contact with the steel bar skeleton; initially, the slider is located at the beginning of the longitudinal slide rail; Repeatingly controlling the slider to move from the beginning to the end of the longitudinal slide rail, and recording the insulation detection value of each detection point returned by the probe; Adjust the second lifting rod and the probe rod so that the probe rod contacts the longitudinal steel bars of the steel skeleton, and record the insulation detection value of each longitudinal steel bar in the steel skeleton returned by the probe rod; The insulation test values ​​of the detection points and the insulation test values ​​of the longitudinal steel bars are compared with standard values ​​to determine the insulation of the steel bar skeleton.

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