A non-destructive testing imaging device for building columns

Abstract

In order to solve the problems of difficulty in detecting building columns, complex equipment and easy entanglement of power supply lines, the present invention provides a non-destructive detection imaging device for building columns, including a lifting bracket, a loading platform connected to the lifting bracket, and a rotating device located below the lifting bracket, all of which are provided with a notch on the same side, the rotating device is composed of a load-bearing base, a rotating base fixedly connected to the top of the load-bearing base, and a rotating loading platform rotatably connected to the top of the rotating base, the load-bearing base is provided with a driving motor and a driving wheel, a power supply slip ring is provided on the rotating loading platform, a power supply block is provided on the rotating base, a power output end of the power supply block is rotatably connected to a conductive roller, and the conductive roller can roll along the inner wall of the power supply slip ring, and a driven wheel is also provided on the rotating base for rolling connection with the outer wall of the rotating loading platform, and the driven wheel is transmission-connected to the driving wheel, and in addition, a wire is connected to the power supply slip ring, and the wire is connected to a power supply and a driving mechanism provided on the lifting bracket.

Description

Technical Field

[0001] The invention relates to the technical field of building detection devices, and in particular to a non-destructive detection imaging device for building columns. Background Art

[0002] Building columns are load-bearing columns. They are very important load-bearing components in ancient Chinese and modern buildings. They can not only bear the weight of the building, but also have a certain degree of beautification function. Therefore, building columns can be seen in both ancient and modern buildings. If there is some damage inside the building column, it will affect the supporting capacity of the building column, thereby further threatening the safety of the building structure. However, the internal damage is difficult to detect from the outside with the naked eye. Therefore, a non-destructive detection imaging device for building columns is needed to detect the building columns. In general, the height of the building column is related to the height of the house and has certain height requirements. If it is to be tested, the two most important problems to be solved are the height problem and the detection method problem.

[0003] At present, there are also many kinds of lifting equipment in China. Before this invention, the Chinese invention patent "An electric lifting scaffold" with application number 202020071728.4 and publication number CN212201202U proposed a new type of electric lifting scaffold, including a scaffold and a driving device. The scaffold includes a bracket and a lifting frame. The driving device can drive the lifting frame to move up and down along the bracket to adjust the height of the lifting frame. However, due to its own structural reasons, this lifting scheme will increase the volume of the lifting equipment as the lifting height increases, and it cannot be disassembled and transported like traditional scaffolding, resulting in transportation difficulties for the lifting equipment. And when facing the cylindrical structure of the building column, there is no good operating space. The Chinese invention patent "A radar wave non-destructive detection method for internal defects of wooden columns in ancient buildings" with application number 201610354065.5 and publication number CN105954502A proposes a new non-destructive detection method for wooden columns in ancient buildings, including a radar wave receiver and a radar wave transmitter, which can detect defects such as cavities and decay in wooden columns of ancient buildings. It is a non-invasive detection, but during the detection process, the radar wave non-destructive detection device needs to be attached to the surface of the wooden column. Therefore, complex disassembly and assembly steps cannot be avoided during the actual detection process.

[0004] In addition, during the inspection of building columns, it is necessary to rotate and power the lifting equipment through the loading platform. Existing devices such as "A simple rotating table" with application number 202110591779.9 and publication number CN113182885A can realize rotation on a circular slide rail to prevent displacement during rotation, but this invention can only realize a simple rotation function and cannot rotate around an object. Moreover, it has a single structure and a bulky overall structure. The Chinese invention patent with application number 200910260153.9 and publication number CN101710665A discloses a "rotating power supply device for a remote wireless loader for an industrial CT test bench". This invention solves the problem of power supply wire entanglement caused by the need for rotation scanning of the loading equipment of the industrial CT test bench. However, the brushes have high manufacturing costs, large transmission volatility and are difficult to control, and there is a potential risk of short circuit due to deformation of the brush wire. Summary of the invention

[0005] In order to solve the problems of difficult building column detection, complex equipment, and easy entanglement of power supply lines, the present invention provides a non-destructive detection imaging device for building columns, and the technical solution adopted is as follows:

[0006] A nondestructive testing imaging device for building columns, characterized by comprising:

[0007] The lifting bracket is composed of a concave base, an outer bracket fixedly connected to the top of the concave base, an inner bracket, and a driving mechanism for driving the inner bracket to slide up and down along the outer bracket, and the concave base is fixedly connected to a power supply;

[0008] The stage is composed of a carrier fixedly connected to the inner support, an X-ray emitter and an X-ray receiver arranged above the carrier, the carrier is provided with notches corresponding to the upper and lower distributions of the concave base, and the left and right sides of the notch are respectively provided with guide rails horizontally distributed along the left and right directions, and the X-ray emitter and the X-ray receiver are respectively slidably connected above the guide rails;

[0009] The load-bearing platform that rotates around an object is connected to the bottom of the concave base, and includes a load-bearing base, a rotating base fixedly connected to the top of the load-bearing base, and a rotating platform rotatably connected to the top of the rotating base. The load-bearing base, the rotating base, and the rotating platform are all provided with notches that correspond to the position of the concave base and are distributed through the top and bottom. The load-bearing base is provided with a driving motor and a driving wheel that is connected to the output shaft of the driving motor. The outer side and the inner side of the rotating base are respectively fixedly connected with multiple groups of driven wheels and power supply blocks along the ring. The driven wheels are connected to the driving wheels in a driving manner. The power supply block consists of a power supply base, a conductive The rotating stage is composed of a channel and a conductive roller, the inner wall of the rotating stage is fixedly connected with a power supply slip ring, the power supply slip ring is composed of a plurality of groups of spaced-apart combination sheets and a power supply sheet fixedly connected between two combination sheets, and the inner diameter of the power supply sheet is larger than the inner diameter of the combination sheet, the conductive roller can roll along the groove between the two groups of combination sheets and is connected to the power supply sheet, a wire is also connected to the power supply sheet, the wire extends out from the top of the rotating stage and is connected to the driving mechanism and the power supply, in addition, an annular groove connected to the driven wheel in rolling cooperation is provided on the outer wall of the rotating stage, and a plurality of groups of driven wheels are distributed along the annular groove.

[0010] Preferably, a loading plate is clamped below the X-ray transmitter and the X-ray receiver, a slider slidably connected to the guide rail is fixedly connected below the loading plate, a positioning pin is also provided on one side of the loading plate, and a plurality of groups of positioning pin holes fixedly connected with the positioning pin are provided on the loading rack along the length direction.

[0011] Preferably, a scale horizontally distributed along the left-right direction is provided on one side of the carrier.

[0012] Preferably, the driving mechanism includes a stepper motor and a wire reel fixedly connected to the concave base, and the stepper motor output shaft is connected to the wire reel in driving manner, a steel wire rope is wound around the wire reel, one end of the steel wire rope is fixed to the wire reel shaft, and the other end passes through the fixed pulley on the outer bracket and is fixed to the upper end of the inner bracket. In addition, a steel wire rope is fixedly connected to the upper end of the outer bracket, and the other end of the steel wire rope passes through the fixed pulley on the inner bracket and is fixedly connected to the cargo rack.

[0013] Preferably, a connecting bracket is fixedly connected to the carrier, and an inner layer slider slidably connected along the height direction is provided on the inner layer bracket, and the connecting bracket and the inner layer slider are detachably fixedly connected.

[0014] Preferably, a distance sensor is provided at the lower end of the carrier, and a proximity switch is provided on the concave base.

[0015] Preferably, a fixing hole for fixing the concave base is provided on the upper end of the rotating stage.

[0016] Preferably, a push-pull platform is arranged in the recess of the load-bearing base, and the push-pull platform includes a push-pull frame, and a gap-filling plate is fixedly connected to the upper end of the push-pull frame, and the gap-filling plate cooperates with the recess on the rotating base to form an annular plate.

[0017] Preferably, the rotating base is further provided with a load-bearing wheel, which is located below the rotating stage and is connected to the lower end surface of the rotating stage in rolling contact.

[0018] Preferably, a ramp is connected to a side of the upper end surface of the rotating base away from the notch.

[0019] The beneficial effects of the present invention are:

[0020] 1. The rotating base drives the rotating stage and the lifting device to rotate synchronously through the driving motor. The power supply block is connected by rolling with the power supply slip ring arranged on the rotating stage through the conductive roller, so as to supply power to the power supply on the concave base and the driving mechanism through the wire, thus avoiding the line entanglement problem of the power supply equipment during the rotation process;

[0021] 2. The load-bearing base, rotating base, rotating stage, concave base and the same side of the stage are all provided with notches to match the building columns to be tested. During the testing process, there is no need to make any holes or other external equipment fixing operations on the building columns to be tested;

[0022] 3. The lifting equipment drives the loading platform to move up and down through the inner and outer brackets, and the components are easy to disassemble and assemble, and easy to transport;

[0023] 4. The building columns are inspected by X-ray transmitters and X-ray receivers, and the positions of the X-ray transmitters and X-ray receivers can be adjusted on the stage to change the imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the invention structure

[0025] Figure 2 Schematic diagram of lifting equipment structure

[0026] Figure 3 Schematic diagram of the concave base structure

[0027] Figure 4 A right side view of the connection structure between the concave base and the outer bracket

[0028] Figure 5 for Figure 4 A partial enlarged schematic diagram

[0029] Figure 6 Right view schematic diagram of the connection structure between the outer support and the inner support

[0030] Figure 7 A partial schematic diagram of the connection structure between the stage and the inner support

[0031] Figure 8 Schematic diagram of the stage structure

[0032] Fig. 9 Schematic diagram of the load rack structure

[0033] Fig.10 Schematic diagram of the rotating equipment structure

[0034] Fig.11 , Fig.12 Schematic diagram of the rotating stage structure

[0035] Fig.13 Schematic diagram of the power supply slip ring structure

[0036] Fig.14 for Fig.13 A magnified schematic diagram of the local structure at point B in the figure

[0037] Fig.15 , Fig.16 Schematic diagram of the connection structure between the load-bearing base and the rotating base

[0038] Fig.17 Schematic diagram of the power supply block structure

[0039] Fig.18 Schematic diagram of the push-pull table structure

[0040] Fig.19 Schematic diagram of X-ray test principle

[0041] Among them, S-lifting equipment:

[0042] 1-concave base, 101-base bracket, 102-vertical pole, 103-inclined support rod, 104-universal wheel, 105-first fixed pulley, 106-winder, 107-stepping motor, 108-first eye bolt, 109-proximity switch, 1010-power supply;

[0043] 2-outer support, 201-first slide slot, 202-second slide slot, 203-second fixed pulley, 204-second eye bolt, 205-fixed protrusion, 206-first roller;

[0044] 3-inner bracket, 301-inner slide rail, 302-outer pulley, 303-third fixed pulley, 304-second roller, 305-third eye bolt;

[0045] 4- stage, 401- carrier, 402- guide rail, 403- carrier plate, 404- slider, 405- X-ray transmitter, 406- X-ray receiver, 407- positioning pin, 408- positioning pin hole, 409- connecting bracket, 410- inner slider, 411- fourth eye bolt, 412- scale, 413- connecting plate;

[0046] X-rotation device:

[0047] 5-rotating stage, 501-rotating stage, 502-ramp, 503-power supply slip ring, 5031-combination sheet, 5032-power supply sheet, 5033-wire hole, 504-wire, 505-fixing hole;

[0048] 6-rotating base, 601-chassis, 602-driven wheel, 603-load-bearing wheel, 604-power supply block, 6041-power supply base, 6042-conductive channel, 6043-conductive roller;

[0049] 7- load-bearing base, 701- load-bearing frame, 702- driving motor, 703- driving wheel, 704- conveyor belt, 705- leveling foot, 706- level gauge, 707- support plate, 708- slide rail, 709- positioning hole;

[0050] 8-push-pull table, 801-push-pull frame, 802-filling plate, 803-spring pin, 804-herringbone pressing piece, 805-horizontal pressing piece, 806-reset spring, 807-slideway;

[0051] 9-Building columns. DETAILED DESCRIPTION

[0052] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0053] In the description of the invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the viewing direction or positional relationships and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0054] like Figure 1The nondestructive testing imaging device for building columns shown includes a lifting device S and a rotating device X. The lifting device S is arranged above the rotating device X, and the lifting device S is rotated and powered by the rotating device X.

[0055] Lifting equipment S Figure 2 As shown, it includes a concave base 1, an outer support 2 fixedly connected to the upper left and right sides of the concave base 1, an inner support 3 slidably connected to the inside of the outer support 2, and a loading platform 4 fixedly connected between the inner support 3 on the left and right sides.

[0056] Concave base 1 Figure 3 As shown, it includes a base bracket 101, a vertical pole 102 fixedly connected to the four corners of the base bracket 101, and an oblique support rod 103 connected between the vertical pole 102 and the base bracket 101, one end of the oblique support rod 103 is hingedly connected to the base bracket 101, and the other end is provided with a card interface, the base bracket 101 as a whole is a frame structure, a notch is provided in the middle, a universal wheel 104 is connected to the bottom of the base bracket 101, and a stepper motor 107, a cable reel 106 and a power supply 1010 are also fixedly connected inside the base bracket 101, a steel wire rope is wound on the inner reel of the cable reel 106, the stepper motor 107 is coaxially fixedly connected to the inner reel of the cable reel 106, a plurality of first fixed pulleys 105 are provided on the left and right sides and the rear side of the base bracket 101, and in addition, a proximity switch 109 is also fixedly connected to the base bracket 101.

[0057] The outer support 2 is as follows Figure 4 , Figure 5 As shown, the outer bracket 2 is composed of two groups of rectangular frames, a second fixed pulley 203 is arranged in the middle of the upper cross bar of the outer bracket 2, and a second eye bolt 204 is fixedly connected to the middle and both ends of the upper cross bar, and the vertical bars distributed in the vertical direction are sequentially provided with a first slide groove 201 and a second slide groove 202 from the inside to the outside, both of which are distributed through the vertical bars in the vertical direction, and a fixed protrusion 205 is also arranged on the outer side surface of the lower part of the vertical bar. When the concave base 1 is connected with the second slide groove 202 through the vertical bar 102, after the oblique support rod 103 is rotated to a suitable angle, one end of its card interface is card-connected with the fixed protrusion 205, thereby fixing the concave base 1 and the outer bracket 2, and in addition, the left and right sides of the vertical bar are fixedly connected with the first roller 206.

[0058] Inner support 3 Figure 6 , Figure 7As shown, it is composed of two groups of rectangular frames which are respectively connected to the inside of the two outer brackets 2 for sliding up and down. The middle of the lower cross bar of the rectangular frame and the left and right ends of the upper cross bar are respectively provided with third fixed pulleys 303. The inner and outer sides of the vertical bars of the rectangular frame are respectively provided with vertically distributed inner slide rails 301 and multiple groups of outer pulleys 302. The outer pulleys 302 can roll up and down along the first slide grooves 201 of the outer brackets 2, so as to facilitate the up and down sliding of the inner brackets 3 and the outer brackets 2. In addition, an inner slider 410 is also connected to the inner slide rails 301 of the vertical bars of the inner brackets 3 for sliding up and down, and the inner slider 410 is fixedly connected to the connecting bracket 409.

[0059] Stage 4 Figure 8 , Fig. 9 As shown, the sample rack 401 includes an X-ray transmitter 405 and an X-ray receiver 406. The sample rack 401 is a rectangular frame structure as a whole, and a notch corresponding to the position of the base bracket 101 is arranged in the middle. The left and right sides of the sample rack 401 are respectively fixedly connected with guide rails 402, and the guide rails 402 are horizontally distributed along the left and right directions. A slider 404 is slidably connected to the guide rails 402, and a carrier plate 403 is fixedly connected above the slider 404. In addition, a clamping block is fixedly connected above the carrier plate 403, and the X-ray transmitter 405 The carrier plate 403 is fixedly connected with two groups of positioning pins 407 located on one side of the X-ray transmitter 405 and the X-ray receiver 406. One end of the positioning pin 407 is hingedly connected to the carrier plate 403. A plurality of groups of positioning pin holes 408 are provided along the length direction at the rear end of the carrier 401. The positioning pins 407 can be inserted into the positioning pin holes 408 after being rotated downward. When it is necessary to X-ray When the distance between the X-ray transmitter 405 and the X-ray receiver 406 is adjusted, the positioning pin 407 is opened, and the distance between the X-ray transmitter 405 and the X-ray receiver 406 is determined according to the scale on the scale 412. The distance between the two positioning pins 407 is the distance between the X-ray receiver 406 and the X-ray transmitter 405. After the distance is determined, the positioning pin 407 can be lowered to fix the positioning pin 407 with the positioning pin hole 408 to complete the X-ray transmitter 405 and the X-ray receiver. The device 406 is fixed. In addition, a group of fourth eye bolts 411 and a group of connecting plates 413 are fixedly connected at the four corners of the load carrier 401. The load carrier 401 is fixedly connected to the connecting bracket 409 on the inner bracket 3 through the connecting plate 413, so that the load carrier 4 can slide up and down along the inner bracket 3 through the inner slider 410. In addition, a distance sensor is fixedly connected to the lower end of the load carrier 401, and a proximity switch is fixedly connected to the concave base 1. The height of the load carrier 4 is detected by the distance sensor and the proximity switch.

[0060] In this embodiment, six steel wire ropes are required. The steel wire ropes on the wire reel 106 are connected to the fixed pulleys and eye bolts on the outer support 2, the inner support 3 and the loading platform 4 on the same side. Three steel wire ropes are symmetrically arranged on the left and right sides to attach Figure 6 For example, specifically, one end of the first steel wire rope is fixed on the roller of the winder 106, and the other end passes through the first fixed pulley 105 on the concave base 1, the second fixed pulley 203 on the upper end cross bar of the outer bracket 2, and the third fixed pulley 303 on the lower end cross bar of the inner bracket 3 in sequence, and is finally fixed to the second eye bolt 204 in the middle of the upper end cross bar of the outer bracket 2, and the inner bracket 3 can be driven by the stepper motor 107 to slide up and down along the outer bracket 2; one end of the second steel wire rope is fixed to the second eye bolt 204 at the front end of the upper end cross bar of the outer bracket 2, and the other end passes through the third fixed pulley 303 at the front end of the upper end cross bar of the inner bracket 3 and is fixed to the fourth eye bolt 411 at the front end of the upper end of the carrier 401; One end of the third steel wire rope is fixed to the second eye bolt 204 on the rear end of the upper cross bar of the outer support 2, and the other end passes through the third fixed pulley 303 on the rear end of the upper cross bar of the inner support 3 and is fixed to the fourth eye bolt 411 on the rear end of the loading rack 401; the latter two groups of steel wire ropes can, with the support of the third fixed pulley 303 on the inner support 3, enable the loading platform 4 and the inner support 3 to rise synchronously. During the rising process, the distance sensor under the loading platform 4 will record the current height between the loading platform 4 and the ground. During the descending process, when the loading platform 4 is at a certain distance from the proximity switch 109, the proximity switch 109 will be triggered, the stepping motor 107 will stop working, and the device will stop descending.

[0061] Rotating device X Fig.10 As shown, it includes a rotating stage 5, a rotating base 6, a load-bearing base 7 and a push-pull platform 8. The rotating base 6 is fixedly connected to the top of the load-bearing base 7, the rotating stage 5 is rotatably connected to the top of the rotating base 6, and the three are provided with recesses on the same side that are distributed corresponding to the positions of the recesses on the concave base 1 and pass through from top to bottom, and the push-pull platform 8 is slidably connected to the recess of the load-bearing base 7.

[0062] Load-bearing base 7 Fig.15 , Fig.16 As shown, it includes a load-bearing frame 701, a driving motor 702, and a driving wheel 703. The load-bearing frame 701 is an overall rectangular frame structure, with a rectangular recess set in the middle of the front end, and leveling feet 705 fixedly connected under the four corners for adjusting the height and level of the load-bearing frame 701. A spirit level 706 is also fixedly connected to the upper right side of the load-bearing frame 701. The driving motor 702 is fixedly connected to the rear position of the load-bearing frame 701, and the output shaft of the driving motor 702 is distributed vertically upward and is coaxially fixedly connected to the driving wheel 703.

[0063] Rotating base 6 Fig.15 , Fig.16 , Fig.17 As shown, it includes a chassis 601, a driven wheel 602, a load-bearing wheel 603 and a power supply block 604. The chassis 601 is fixedly connected to the upper middle end of the load-bearing frame 701. The chassis 601 is a circular plate-shaped structure, and a rectangular recess identical to that of the load-bearing frame 701 is provided at the front end. Six groups of driven wheels 602 are provided above the chassis 601 at the same angle in the circumferential direction. A groove is provided between two adjacent groups of driven wheels 602. The load-bearing wheel 603 is rotatably connected in the groove. Three groups of power supply blocks 604 are provided, which are fixedly connected to the inner side of the upper part of the chassis 601 at the same angle. Fig.17 As shown, the power supply block 604 is composed of a power supply base 6041, a conductive channel 6042 and a conductive roller 6043. The conductive channel 6042 is electrically connected to the power supply base 6041, the conductive roller 6043 is electrically connected to the outer end of the conductive channel 6042, and the conductive roller 6043 is rotatably connected to the conductive channel 6042. In this embodiment, two groups of conductive channels 6042 and conductive rollers 6043 are provided.

[0064] Rotating stage 5 Fig.11 , Fig.12 As shown, it includes a rotating platform 501, a ramp 502, and a power supply slip ring 503. The rotating platform 501 is composed of an annular plate and an annular ring coaxially fixedly connected to the lower part of the annular plate. The front end of the rotating platform 501 is provided with a notch penetrating in the vertical direction. The notch has the same shape and size as the notches on the load-bearing frame 701 and the chassis 601. The ramp 502 is fixedly connected to the rear of the rotating platform 501, and the front end of the ramp 502 is fixed to the annular plate of the rotating platform 501. The rear part of the ramp 502 is an inclined plate inclined downward. The power supply slip ring 503 is fixedly connected to the inner wall of the annular ring of the rotating platform 501. The power supply slip ring 503 is as shown in FIG. Fig.13 , Fig.14As shown, it is composed of three combination sheets 5031 and two power supply sheets 1032. The three combination sheets 5031 are spaced from top to bottom. The power supply sheet 1032 is fixedly connected to the gap between the two combination sheets 5031. The combination sheet 5031 and the power supply sheet 1032 are coaxially distributed, and the inner diameter of the power supply sheet 1032 is smaller than the inner diameter of the combination sheet 5031. The two groups of conductive rollers 6043 of the power supply block 604 are respectively in contact with the inner wall of the power supply sheet 1032, and the conductive rollers 6043 can roll along the groove between the two combination sheets 5031. In addition, between the combination sheet 5031 and the power supply sheet 103 2 is provided with wire holes 5033 corresponding to the positions thereof, and the annular plate of the rotating table 501 is provided with through holes corresponding to the positions of the wire holes 5033. After the wire 504 passes through the wire holes 5033 on the combination sheet 5031 and the power supply sheet 1032 from bottom to top, it extends to the top of the rotating table 501 through the through hole on the rotating table 501, so as to facilitate power supply to the rotating parts on the rotating table 501. Four groups of fixing holes 505 are also provided at the upper end of the rotating table 501, and the universal wheels 104 on the concave base 1 can be inserted into the fixing holes 505, so as to fix the lifting device S.

[0065] Sliding table 8 Fig.10 , Fig.18As shown, it includes a push-pull frame 801, a gap-filling plate 802 and a spring pin 803. The push-pull frame 801 is a rectangular frame structure and is connected with the notch on the load-bearing frame 701. The gap-filling plate 802 is fixedly connected to the upper rear end of the push-pull frame 801. The shape of the gap-filling plate 802 is the same as the notch shape on the chassis 601. The gap-filling plate 802 is connected with the chassis 601 to form an annular plate structure, and a driven wheel 602 and a load-bearing wheel 603 are arranged above the gap-filling plate 802. The driven wheel 602 and the load-bearing wheel 603 above the gap-filling plate 802 are connected to the chassis The six groups of driven wheels 602 and the six groups of load-bearing wheels 603 above 601 cooperate with each other to bear the weight of the rotating platform 501 and drive the rotating platform 501 to rotate. Slide grooves 807 distributed in the front and rear directions are arranged on the left and right sides of the push-pull frame 801, and slide rails 708 distributed in the front and rear directions are arranged on both sides of the recess of the load-bearing frame 701. The push-pull frame 801 can be slidably connected with the load-bearing frame 701 front and back through the cooperation of the slide grooves 807 and the slide rails 708. Two groups of through holes distributed left and right are arranged on the left and right sides of the front part of the push-pull frame 801. There are positioning holes 709 corresponding to the positions of the through holes, and the spring pin 803 is fixed through the through holes and the positioning holes 709 of the push-pull frame 801, so as to fix the push-pull frame 801 to the load-bearing frame 701. In addition, two groups of return springs 806 are arranged on the left and right sides of the front end beam of the push-pull frame 801. The two groups of return springs 806 can be compressed and reset in the front and rear directions. One end of the two groups of return springs 806 is vertically fixedly connected to the front end beam of the push-pull frame 801, and the other end is fixedly connected to the horizontal pressing plate 805. The spring pin 803 is fixed to the end of the horizontal pressing plate 805. It is connected with a herringbone pressing plate 804, the middle part of which is hingedly connected to the push-pull frame 801, and the two ends are fixedly connected to the spring pin 803 and the horizontal pressing plate 805 respectively. When the horizontal pressing plate 805 is compressed backward, the horizontal pressing plate 805 moves backward following the reset spring 806, driving the middle part of the herringbone pressing plate 804 to rotate around the push-pull frame 801, and the end of the herringbone pressing plate 804 connected to the spring pin 803 moves inward, thereby driving the spring pin 803 to slide out of the positioning hole 709, thereby facilitating the connection and disassembly of the push-pull platform 8 and the load-bearing base 7.

[0066] Rotating device X works like this:

[0067] The driving motor 702 drives the driving wheel 703 to rotate, and the driving wheel 703 drives the multiple sets of driven wheels 602 to rotate through the conveyor belt 704. The multiple sets of driven wheels 602 drive the rotating table 501 to rotate while clamping the rotating table 501. Moreover, since there are three sets of power supply blocks 604, when the power supply slip ring 503 is opened, it can also be ensured that at least two sets of power supply blocks 604 supply power to the power supply slip ring 503. The power supply system of the device is the power supply block 604, and the power is transmitted through the conductive channel 6042 and the conductive roller. 6043 is transmitted to the power supply slip ring 503, and is transmitted to the carried object above the rotating table 501 via the power supply sheet 5032 and the wire 504, thereby realizing uninterrupted power supply when the carried object is rotating. After the positioning is completed, the push-pull table 8 will fill the "concave" shaped opening of the load-bearing base 7, so that the rotating stage 5 will not be deformed during the rotation process due to the "concave" shaped opening of the load-bearing base 7. The setting of the push-pull table 8 can further ensure the stability of the rotating stage 5 during the rotation process.

[0068] In addition, in this embodiment, four groups of wires 504 are arranged on the power supply slip ring 503, the two groups of wires 504 on the left side form a loop for powering the stepper motor 107, and the two groups of wires 504 on the right side form a loop for powering the power supply 1010, and the power supply 1010 powers the X-ray transmitter 405 and the X-ray receiver 406. The power supply 1010 has the functions of energy storage, voltage stabilization and current stabilization, so that it can meet the power supply requirements of the X-ray transmitter 405 and the X-ray receiver 406.

[0069] The construction method of using this device to detect building columns is as follows:

[0070] S1: Find the building column 9 that needs non-destructive testing, and calculate the position that needs non-destructive testing and the height of the position from the ground;

[0071] S2: Pull out the push-pull platform 8 on the rotating device X, and place the notch on the rotating device X in line with the building column. After the placement is completed, push the push-pull platform 8 in.

[0072] S3: Open the positioning pin 407 on the stage 4, and move the X-ray transmitter 405 and the X-ray receiver 406 as needed. The moving distance is based on the scale on the stage 4 as a reference. When fixing, put the positioning pin 407 back into the positioning hole on the scale 412;

[0073] S4: Push the lifting device S to the top of the rotating platform 5 of the rotating device X through the ramp 502, and fix the universal wheel 104 of the lifting device S through the fixing hole 505;

[0074] S5: Checking the contact between the rotating stage 5, the concave base 1, the notch on the stage 4 and the building column 9 to be tested;

[0075] S6: first adjust the lifting height of the lifting device S. During the height adjustment process, the wire reel 106 works to pull the inner support 3 and the loading platform 4 upward. The distance sensor at the bottom of the loading platform 4 transmits data back to record the lifting height. After reaching the specified height, the lifting stops, and the rear rotating device X starts to rotate.

[0076] S7: During the rotation process, the X-ray transmitter 405 and the X-ray receiver 406 in the lifting device S will continue to work and transmit the detection data. After the non-destructive test is completed, the building column 9 to be tested can be analyzed based on the test results sent back by the X-ray receiver 406.

[0077] The X-ray detection in the present invention is shown as follows Fig.19 As shown, a fan-shaped X-ray beam is used to scan the building column 9, and the X-ray emitter 405 is a ray source. The ray source projects a fan-shaped X-ray beam to the measured standing wood fault, and some photons are absorbed or scattered by the building column 9. The X-ray receiver 406 receives the attenuated X-ray intensity. Due to the different materials and structures inside the building column 9, there will be certain differences in its internal density, and the degree of absorption of X-rays is also different. The larger the density of the part inside the building column, the stronger its absorption of X-rays. Therefore, according to the difference in linear attenuation coefficients of discrete points inside the building column, the structural information inside the building column can be displayed in an image form, which can assist researchers in analyzing the building column.

[0078] The X-ray based nondestructive testing proposed in the present invention has an optimal detection distance parameter L, that is, the distance between the X-ray emitter 405 and the building column 9. The optimal distance L will change according to the size of the column to be detected. The optimal distance L solution diagram is shown in FIG. Fig.10 As shown, Db is the distance between the X-ray emitter 405 and the X-ray receiver 406, Dp is the final width of the fan-shaped X-ray beam irradiated on the X-ray receiver, r is the radius of the building column to be measured, θ is the emission angle of the fan-shaped X-ray beam, and the optimal distance L=r / (sin(θ / 2)). After obtaining the optimal distance L, the position of the X-ray emitter 405 and the X-ray receiver 406 can be adjusted using the ruler 412 and the positioning pin 407.

[0079] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.

Claims

1. A non-destructive testing imaging device for building columns, characterized in that: include: The lifting bracket is composed of a concave base, an outer bracket fixedly connected to the top of the concave base, an inner bracket, and a driving mechanism for driving the inner bracket to slide up and down along the outer bracket, and the concave base is fixedly connected to a power supply; The stage is composed of a carrier fixedly connected to the inner support, an X-ray emitter and an X-ray receiver arranged above the carrier, the carrier is provided with notches corresponding to the upper and lower distributions of the concave base, and the left and right sides of the notch are respectively provided with guide rails horizontally distributed along the left and right directions, and the X-ray emitter and the X-ray receiver are respectively slidably connected above the guide rails; The load-bearing platform that rotates around an object is connected to the bottom of the concave base, and includes a load-bearing base, a rotating base fixedly connected to the top of the load-bearing base, and a rotating platform rotatably connected to the top of the rotating base. The load-bearing base, the rotating base, and the rotating platform are all provided with notches that correspond to the position of the concave base and are distributed through the top and bottom. The load-bearing base is provided with a driving motor and a driving wheel that is connected to the output shaft of the driving motor. The outer side and the inner side of the rotating base are respectively fixedly connected with multiple groups of driven wheels and power supply blocks along the ring. The driven wheels are connected to the driving wheels in a driving manner. The power supply block consists of a power supply base, a conductive The rotating stage is composed of a channel and a conductive roller, the inner wall of the rotating stage is fixedly connected with a power supply slip ring, the power supply slip ring is composed of a plurality of groups of spaced-apart combination sheets and a power supply sheet fixedly connected between two combination sheets, and the inner diameter of the power supply sheet is larger than the inner diameter of the combination sheet, the conductive roller can roll along the groove between the two groups of combination sheets and is connected to the power supply sheet, a wire is also connected to the power supply sheet, the wire extends out from the top of the rotating stage and is connected to the driving mechanism and the power supply, in addition, an annular groove connected to the driven wheel in rolling cooperation is provided on the outer wall of the rotating stage, and a plurality of groups of driven wheels are distributed along the annular groove.

2. The nondestructive testing imaging device for building columns according to claim 1 is characterized in that: A loading plate is clamped under the X-ray transmitter and the X-ray receiver, a slider slidably connected to the guide rail is fixedly connected under the loading plate, a positioning pin is also arranged on one side of the loading plate, and a plurality of positioning pin holes fixedly connected with the positioning pin are arranged on the loading rack along the length direction.

3. The nondestructive testing imaging device for building columns according to claim 1 is characterized in that: A scale horizontally distributed along the left and right directions is arranged on one side of the object carrier.

4. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: The driving mechanism includes a stepper motor and a wire reel fixedly connected to the concave base, and fixed pulleys arranged on the inner bracket, the outer bracket and the loading rack. The output shaft of the stepper motor is transmission-connected to the wire reel. A steel wire rope is wound around the wire reel. One end of the steel wire rope is fixed to the wire reel shaft, and the other end passes through the fixed pulley on the inner bracket and is fixed to the upper end of the outer bracket. In addition, a steel wire rope is fixedly connected to the upper end of the outer bracket, and the other end of the steel wire rope passes through the fixed pulley on the inner bracket and is fixedly connected to the loading rack.

5. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: A connecting bracket is fixedly connected to the object carrier, and an inner layer slider which is slidably connected along the height direction is arranged on the inner layer bracket. The connecting bracket and the inner layer slider are detachably fixedly connected.

6. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: A distance sensor is arranged at the lower end of the object carrier, and a proximity switch is arranged on the concave base.

7. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: The upper end of the rotating stage is provided with a fixing hole for fixing the concave base.

8. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: A push-pull platform is arranged in the recess of the load-bearing base, and the push-pull platform comprises a push-pull frame, and a gap-filling plate is fixedly connected to the upper end of the push-pull frame. The gap-filling plate cooperates with the recess on the rotating base to form an annular plate.

9. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: The rotating base is also provided with a load-bearing wheel, which is located below the rotating stage and is connected to the lower end surface of the rotating stage in rolling contact.

10. The nondestructive testing imaging device for building columns according to claim 1, characterized in that: A ramp is connected to a side of the upper end surface of the rotating base away from the notch.

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