A damage-resistant inspection device for the steel structure of a tower crane

Abstract

This invention relates to the field of tower crane inspection technology and discloses a non-destructive inspection device for the steel structure of a tower crane. The device includes a mounting plate and a base. Two sets of clamping plates are symmetrically installed on both sides of the base. Two sets of through holes are symmetrically opened on the clamping plates, and rotating columns are fixedly installed within these through holes. Rollers are rotatably mounted on the rotating columns. A fixing plate is installed on the clamping plate, and an ultrasonic testing instrument is mounted on the fixing plate. When the steel structure of the tower crane needs to be inspected, a drive motor drives a cable reel to wind and unwind cables, allowing the ultrasonic testing instrument to move synchronously with the base. This facilitates non-destructive inspection of the tower crane's steel structure using the ultrasonic testing instrument, improving the efficiency of the tower crane's steel structure inspection.

Description

Technical Field

[0001] This invention relates to the field of tower crane inspection technology, specifically a tower crane steel structure anti-damage inspection device. Background Technology

[0002] Tower cranes, also known as tower hoists, originated in Western Europe. They are rotating cranes with a jib mounted on a tall tower, offering a large working space. They are primarily used for the vertical and horizontal transport of materials and the installation of building components in construction. They mainly consist of three parts: the metal structure, the working mechanism, and the electrical system. The metal structure includes the tower body, jib, and base, with the tower body often composed of multiple steel structures. The working mechanism comprises four parts: hoisting, luffing, slewing, and traveling. Because the tower body is prone to metal deformation and fracture during prolonged operation, inspection devices are needed to monitor and inspect the tower body.

[0003] Existing tower crane inspection devices mostly perform direct inspections during the steel structure construction of the tower. After the tower is completed and used for a long time, workers need to use handheld ultrasonic detectors to inspect the steel structure of the tower. This is labor-intensive, involves climbing up and down, is inconvenient for inspecting the steel structure, and has low inspection efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a damage-resistant inspection device for the steel structure of a tower crane to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tower crane steel structure anti-damage inspection device, comprising a mounting plate and a base. The mounting plate is installed on the top of the tower crane, and a cable carrier is mounted on the mounting plate. A drive motor is mounted on the cable carrier, and the cable carrier is connected to the base via a cable. Two sets of clamping plates are symmetrically installed on both sides of the base. Two sets of through holes are symmetrically opened on the clamping plates, and rotating columns are fixedly installed in the two sets of through holes. Rollers are rotatably mounted on the rotating columns. A fixing plate is installed on the clamping plate, and an ultrasonic detector is installed on the fixing plate. When it is necessary to inspect the tower crane... When inspecting the steel structure of the tower crane, clamping plates on both sides of the base clamp the two sides of the tower crane, bringing the rollers into contact with the tower body. At this time, the drive motor drives the cable unwinding machine to fix the cable to the base. Then, the drive motor drives the cable unwinding machine to wind the cable. Under the action of the cable and rollers, the base can move along the tower body, facilitating the ultrasonic testing instrument on the fixed plate to perform non-destructive testing on the steel structure of the tower body. At the same time, when the ultrasonic testing instrument moves to the top of the tower, the cable unwinding machine unwinds the cable again. This allows the ultrasonic testing instrument to inspect the steel structure of the tower body in an up-and-down motion, which helps to improve the efficiency of the steel structure inspection of the tower body.

[0006] As a preferred technical solution, two sets of electric adjusting rods are symmetrically installed on both sides of the base, and clamping plates are installed on the two sets of electric adjusting rods. The clamping plates can be adjusted according to the width of the tower crane by the electric adjusting rods, which can improve the applicability of the entire device.

[0007] As a preferred technical solution, the base is provided with a movable utilization component and a rotating utilization component, and the movable utilization component is provided with a driving force by rollers, and the movable utilization component is provided with a driving force for the rotating utilization component.

[0008] As a preferred technical solution, the mobile utilization component includes a drive shaft, a through hole, drive teeth, a fixed column, driven teeth, a drive disc, a driven disc, and a drive belt;

[0009] A drive shaft is mounted on the roller. A through hole is formed in the wall of the through hole, through which the drive shaft passes. A drive gear is mounted on the drive shaft. A fixed column is mounted on the fixed plate, and a driven gear is rotatably mounted on the fixed column. The drive gear and the driven gear mesh. A drive disc is mounted on the driven gear. Two sets of driven discs are symmetrically rotatably mounted on the base. A drive belt is fitted onto the driven disc and the drive disc. When the roller rotates, the roller can drive the drive gear to rotate synchronously through the drive shaft. Since the drive gear and the driven gear mesh, the driven gear rotates under the drive of the drive gear. At this time, the driven gear can drive the drive disc to rotate synchronously during the rotation. Then, through the transmission belt, the driven disc can be driven to rotate. The rotation of the driven disc can provide the driving force for the rotating component.

[0010] As a preferred technical solution, the mobile utilization component further includes a fixed block, a first telescopic rod, a linkage plate, a first support spring, a connecting rod, and a tensioning roller;

[0011] Fixed blocks are symmetrically installed on both sides of the base. Two sets of first telescopic rods are symmetrically installed on the fixed blocks. Linkage plates are installed on the two sets of first telescopic rods. The linkage plates are connected to the fixed blocks through first support springs. Connecting rods are installed on the linkage plates. Tensioning rollers are rotatably installed on the connecting rods. The tensioning rollers are in contact with the transmission belt. When the electric adjusting rod drives the clamping plate to adjust according to the width of the tower body, the elastic force of the first support spring on the linkage plate can cause the linkage plate to drive the tensioning rollers to come closer to the transmission belt through the connecting rods. This allows the transmission belt to automatically tension as the distance between the driven disc and the transmission disc changes.

[0012] As a preferred technical solution, the rotating utilization component includes an extrusion plate, a support plate, a second telescopic rod, an extrusion plate, a second support spring, and an airbag;

[0013] A pressing plate is mounted on the driven disk. The pressing plate has an elliptical structure. Two sets of support plates are symmetrically mounted on the base near the driven disk. A second telescopic rod is mounted on the opposite surface of the two sets of support plates. A pressing plate is mounted on the second telescopic rod. The pressing plate is connected to the base by a second support spring. The support plate and the pressing plate are connected by an air bladder. The second support spring ensures that the outer contour of the pressing plate and the pressing disk are always in contact. When the driven disk rotates, it drives the pressing plate to rotate synchronously. Utilizing the elliptical outer contour of the pressing plate, it can periodically press the pressing plate during rotation. When the pressing plate moves under the pressure of the pressing plate, it can compress the second support spring and squeeze the air bladder. When the pressing plate resets under the elastic force of the second support spring, it can drive the air bladder to return to its original position.

[0014] As a preferred technical solution, the rotating utilization assembly further includes a connecting plate, a rotating rod, a hollow turntable, a rotary joint, a nozzle, and a cleaning plate;

[0015] The fixed plate is symmetrically equipped with connecting plates on its upper and lower sides. A rotating rod is rotatably mounted on the connecting plates. A hollow turntable is installed at one end of the rotating rod. A rotary joint is provided on the hollow turntable. The rotary joint is connected to the output end of the airbag through an air pipe. Multiple nozzles are installed on the circumferential sidewall of the hollow turntable. A cleaning plate is installed at the other end of the rotating rod. When the airbag is compressed, as the compression plate continuously compresses the airbag, the gas inside the airbag can enter the hollow turntable through the air pipe. As a large amount of airflow rushes into the hollow turntable, the gas inside the hollow turntable can be ejected through the nozzles under air pressure. The force generated by the airflow ejected by the nozzles can make the hollow turntable rotate. At this time, during the rotation of the hollow turntable, the cleaning plate can be driven by the rotating rod to clean the steel structure surface of the tower body, which can realize the pretreatment of the steel structure surface and improve the detection accuracy of the ultrasonic detector.

[0016] As a preferred technical solution, one-way valves are installed on the input end of the airbag and the air pipe to ensure the directional flow of gas inside the airbag. Multiple nozzles are arranged in a ring on the hollow turntable to facilitate the rotation of the hollow turntable under the force of the airflow from the nozzles.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] When it is necessary to inspect the steel structure of the tower crane, the drive motor drives the cable winding and unwinding machine, allowing the ultrasonic testing instrument to move synchronously with the base. This facilitates non-destructive inspection of the tower's steel structure by the ultrasonic testing instrument, which helps improve the efficiency of the tower's steel structure inspection.

[0019] By utilizing the rotation of the rollers, the transmission teeth can drive the driven teeth to rotate, thereby causing the driven disc to rotate under the drive of the transmission disc and transmission belt. The rotation of the driven disc can provide the driving force for the rotating components, eliminating the need for additional drive equipment and reducing the energy consumption of the entire device.

[0020] By utilizing the rotation of the driven disc, the periodic extrusion of the extrusion plate by the extrusion disc causes the airbag to drive the hollow turntable to rotate, thereby causing the cleaning plate to rotate during the rotation of the hollow turntable. This facilitates the cleaning of the steel structure during the process and improves the detection accuracy of the ultrasonic detector. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the second perspective structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the first cross-sectional structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the second cross-sectional structure of the present invention;

[0026] Figure 5 yes Figure 4 A magnified structural diagram at point A;

[0027] Figure 6 yes Figure 3 A magnified structural diagram at point B;

[0028] Figure 7 yes Figure 2 A magnified structural diagram at point C.

[0029] In the diagram: 1. Mounting plate; 2. Cable carrier; 3. Drive motor; 4. Cable; 5. Base; 6. Electric adjusting rod; 7. Clamping plate; 8. Through hole; 9. Rotating column; 10. Roller; 11. Fixing plate; 12. Ultrasonic detector;

[0030] 13. Movable Utilization Component; 1301. Drive Shaft; 1302. Perforation; 1303. Drive Gear; 1304. Fixed Column; 1305. Driven Gear; 1306. Drive Disc; 1307. Driven Disc; 1308. Drive Belt; 1309. Fixed Block; 1310. First Telescopic Rod; 1311. Linkage Plate; 1312. First Support Spring; 1313. Connecting Rod; 1314. Tension Roller;

[0031] 14. Rotary utilization component; 1401. Extrusion plate; 1402. Support plate; 1403. Second telescopic rod; 1404. Extrusion plate; 1405. Second support spring; 1406. Airbag; 1407. Connecting plate; 1408. Rotating rod; 1409. Hollow turntable; 1410. Rotary joint; 1411. Nozzle; 1412. Cleaning plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example: Figures 1-4 As shown, the present invention provides the following technical solution: a tower crane steel structure anti-damage inspection device, which includes a mounting plate 1 and a base 5. The mounting plate 1 is installed on the top of the tower crane. A cable machine 2 is mounted on the mounting plate 1, and a drive motor 3 is mounted on the cable machine 2. The cable machine 2 is connected to the base 5 via a cable 4. Two sets of clamping plates 7 are symmetrically installed on both sides of the base 5. Two sets of through holes 8 are symmetrically opened on the clamping plates 7. Rotating columns 9 are fixedly installed in the two sets of through holes 8. Rollers 10 are rotatably installed on the rotating columns 9. A fixing plate 11 is installed on the clamping plate 7, and an ultrasonic detector 12 is installed on the fixing plate 11. When it is necessary to inspect the steel structure of the tower crane... During the inspection, the clamping plates 7 on both sides of the base 5 clamp the two sides of the tower crane, so that the rollers 10 come into contact with the tower body. At this time, the drive motor 3 drives the cable machine 2 to unwind the cable 4, and after the cable 4 is fixedly connected to the base 5, the drive motor 3 drives the cable machine 2 to wind up the cable 4. Under the action of the cable 4 and the rollers 10, the base 5 can move up and down along the tower body, which makes it convenient for the ultrasonic detector 12 on the fixed plate 11 to perform non-destructive testing on the steel structure of the tower body. At the same time, when the ultrasonic detector 12 moves to the top of the tower, the cable machine 2 unwinds the cable 4. This allows the ultrasonic detector 12 to inspect the steel structure of the tower body in an up-and-down motion, which helps to improve the efficiency of the steel structure inspection of the tower body.

[0034] Two sets of electric adjusting rods 6 are symmetrically installed on both sides of the base 5. Clamping plates 7 are installed on the two sets of electric adjusting rods 6. The clamping plates 7 can be adjusted according to the width of the tower crane by the electric adjusting rods 6, which can improve the applicability of the whole device.

[0035] The base 5 is provided with a movable utilization component 13 and a rotating utilization component 14. The movable utilization component 13 is driven by a roller 10, and the movable utilization component 13 is driven by a rotating utilization component 14.

[0036] like Figures 1-7 As shown, the mobile utilization component 13 includes a drive shaft 1301, a through hole 1302, a drive gear 1303, a fixed post 1304, a driven gear 1305, a drive disc 1306, a driven disc 1307, and a drive belt 1308.

[0037] A drive shaft 1301 is mounted on the roller 10. A through hole 1302 is formed in the wall of the through hole 8. The drive shaft 1301 passes through the through hole 1302, and a drive gear 1303 is mounted on the drive shaft 1301. A fixing post 1304 is mounted on the fixing plate 11. A driven gear 1305 is rotatably mounted on the fixing post 1304. The drive gear 1303 meshes with the driven gear 1305. A drive disc 1306 is mounted on the driven gear 1305. Two sets of driven discs 1307 are symmetrically rotatably mounted on the base 5. The driven discs 1307 and the drive discs 1306... A transmission belt 1308 is fitted on the roller 10. When the roller 10 rotates, the roller 10 can drive the transmission gear 1303 to rotate synchronously through the transmission shaft 1301. Since the transmission gear 1303 meshes with the driven gear 1305, the driven gear 1305 rotates under the drive of the transmission gear 1303. At this time, the driven gear 1305 can drive the transmission disk 1306 to rotate synchronously during the rotation. Then, through the transmission belt 1308, it can drive the driven disk 1307 to rotate. The rotation of the driven disk 1307 can provide the driving force for the rotation utilization component 14.

[0038] The mobile utilization component 13 also includes a fixing block 1309, a first telescopic rod 1310, a linkage plate 1311, a first support spring 1312, a connecting rod 1313, and a tension roller 1314;

[0039] Fixed blocks 1309 are symmetrically installed on both sides of the base 5. Two sets of first telescopic rods 1310 are symmetrically installed on the fixed blocks 1309. Linkage plates 1311 are installed on the two sets of first telescopic rods 1310. The linkage plates 1311 are connected to the fixed blocks 1309 through first support springs 1312. A connecting rod 1313 is installed on the linkage plate 1311. A tension roller 1314 is rotatably installed on the connecting rod 1313. The tension roller 1314 is in contact with the transmission belt 1308. When the electric adjusting rod 6 drives the clamping plate 7 to adjust according to the width of the tower body, the elastic force of the first support spring 1312 on the linkage plate 1311 can cause the linkage plate 1311 to drive the tension roller 1314 to come closer to the transmission belt 1308 through the connecting rod 1313. This allows the transmission belt 1308 to automatically tension as the distance between the driven plate 1307 and the transmission plate 1306 changes.

[0040] like Figures 1-4 and Figures 6-7 As shown, the rotating utilization assembly 14 includes a pressing disc 1401, a support plate 1402, a second telescopic rod 1403, a pressing plate 1404, a second support spring 1405, and an airbag 1406.

[0041] An extrusion plate 1401 is mounted on the driven disk 1307. The extrusion plate 1401 has an elliptical structure. Two sets of support plates 1402 are symmetrically mounted vertically on the side of the base 5 near the driven disk 1307. A second telescopic rod 1403 is mounted on the opposite surface of the two sets of support plates 1402. An extrusion plate 1404 is mounted on the second telescopic rod 1403. The extrusion plate 1404 is connected to the base 5 by a second support spring 1405. The support plate 1402 and the extrusion plate 1404 are connected by an airbag 1406. The second support spring 1405 ensures that the extrusion plate 1404 and the outer wheel of the extrusion disk 1401 are aligned. The contour is always in contact. When the driven plate 1307 rotates, it can drive the extrusion plate 1401 to rotate synchronously. Utilizing the elliptical outer contour of the extrusion plate 1401, the extrusion plate 1401 can periodically extrude the extrusion plate 1404 during rotation. When the extrusion plate 1404 moves under the extrusion of the extrusion plate 1401, it can compress the second support spring 1405 and extrude the airbag 1406. When the extrusion plate 1404 resets under the elastic force of the second support spring 1405, it can drive the airbag 1406 to recover during the reset process.

[0042] The rotating utilization assembly 14 also includes a connecting plate 1407, a rotating rod 1408, a hollow turntable 1409, a rotary joint 1410, a nozzle 1411, and a cleaning plate 1412;

[0043] The fixed plate 11 is symmetrically equipped with connecting plates 1407 on its upper and lower sides. A rotating rod 1408 is rotatably mounted on the connecting plate 1407. A hollow turntable 1409 is mounted on one end of the rotating rod 1408. A rotary joint 1410 is provided on the hollow turntable 1409. The rotary joint 1410 is connected to the output end of the airbag 1406 through an air pipe. Multiple nozzles 1411 are mounted on the circumferential sidewall of the hollow turntable 1409. A cleaning plate 1412 is mounted on the other end of the rotating rod 1408. When the airbag 1406 is compressed, as the compression plate 1404 continuously compresses the airbag 1406... The gas inside the airbag 1406 can enter the hollow turntable 1409 through the air pipe. As a large amount of airflow enters the hollow turntable 1409, the gas inside the hollow turntable 1409 can be ejected through the nozzle 1411 under the action of air pressure. The force generated by the airflow ejected by the nozzle 1411 can make the hollow turntable 1409 rotate. At this time, during the rotation, the hollow turntable 1409 can drive the cleaning plate 1412 to clean the steel structure surface of the tower body through the rotating rod 1408. This can achieve pretreatment of the steel structure surface and improve the detection accuracy of the ultrasonic detector 12.

[0044] One-way valves are installed on the inlet end and air pipe of the airbag 1406 to ensure the directional flow of gas inside the airbag 1406. Multiple nozzles 1411 are arranged in a ring on the hollow turntable 1409 to facilitate the rotation of the hollow turntable 1409 under the force of the airflow sprayed by the nozzles 1411.

[0045] Working principle of the invention:

[0046] When the steel structure of the tower crane needs to be inspected, the clamping plates 7 on both sides of the base 5 clamp the two sides of the tower crane, so that the rollers 10 come into contact with the tower body. At this time, the drive motor 3 drives the cable machine 2 to unwind the cable 4. After the cable 4 is fixedly connected to the base 5, the drive motor 3 drives the cable machine 2 to wind up the cable 4. Under the action of the cable 4 and the rollers 10, the base 5 can move up and down along the tower body, which makes it convenient for the ultrasonic detector 12 on the fixed plate 11 to perform non-destructive testing on the steel structure of the tower body. At the same time, when the ultrasonic detector 12 moves to the top of the tower, the cable machine 2 unwinds the cable 4. This allows the ultrasonic detector 12 to inspect the steel structure of the tower body in an up-and-down motion, which helps to improve the efficiency of the steel structure inspection of the tower body.

[0047] When the roller 10 rotates, it can drive the transmission gear 1303 to rotate synchronously through the transmission shaft 1301. Since the transmission gear 1303 meshes with the driven gear 1305, the driven gear 1305 rotates under the drive of the transmission gear 1303. At this time, the driven gear 1305 can drive the transmission disk 1306 to rotate synchronously during rotation. Then, through the transmission belt 1308, it can drive the driven disk 1307 to rotate. The rotation of the driven disk 1307 can provide the driving force for the rotation utilization component 14.

[0048] When the driven disk 1307 rotates, it drives the extrusion disk 1401 to rotate synchronously. Utilizing the elliptical outer contour of the extrusion disk 1401, it periodically extrudes the extrusion plate 1404 during rotation. As the extrusion plate 1404 moves under the pressure of the extrusion disk 1401, it compresses the second support spring 1405 and squeezes the airbag 1406. When the extrusion plate 1404 resets under the elastic force of the second support spring 1405, it drives the airbag 1406 to return to its original position. When the airbag 1406 is compressed... As the extrusion plate 1404 continuously compresses the airbag 1406, the gas inside the airbag 1406 can enter the hollow turntable 1409 through the air pipe. As a large amount of airflow rushes into the hollow turntable 1409, the gas inside the hollow turntable 1409 can be ejected through the nozzle 1411 under the action of air pressure. The force generated when the airflow is ejected by the nozzle 1411 can make the hollow turntable 1409 rotate. At this time, during the rotation, the hollow turntable 1409 can drive the cleaning plate 1412 to clean the steel structure surface of the tower body through the rotating rod 1408, which can realize the pretreatment of the steel structure surface and improve the detection accuracy of the ultrasonic detector 12.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A damage-resistant inspection device for the steel structure of a tower crane, characterized in that: The tower crane steel structure loss prevention type inspection device, including mounting plate (1) and base (5), the mounting plate (1) is installed on the top of the tower crane, the mounting plate (1) is installed with cable machine (2), the cable machine (2) is installed with drive motor (3), the cable machine (2) is connected with base (5) through cable (4), two groups of clamping plates (7) are symmetrically installed on the both sides of base (5), two groups of through holes (8) are symmetrically formed in clamping plate (7), two groups of rotating columns (9) are fixedly installed in the through hole (8), rotating roller (10) is rotatably installed on rotating column (9), fixed plate (11) is installed on clamping plate (7), ultrasonic detector (12) is installed on fixed plate (11); The base (5) is provided with a moving component (13) and a rotating component (14), the rotating roller (10) provides a running driving force for the moving component (13), and the moving component (13) provides a running driving force for the rotating component (14); The moving component (13) comprises a transmission shaft (1301), a through hole (1302), a transmission gear (1303), a fixed column (1304), a driven gear (1305), a transmission disc (1306), a driven disc (1307) and a transmission belt (1308); The transmission shaft (1301) is installed on the rotating roller (10), the through hole (1302) is formed in the hole wall of the through hole (8), the transmission shaft (1301) penetrates through the through hole (1302), and the transmission shaft (1301) is provided with the transmission gear (1303), the fixed column (1304) is installed on the fixed plate (11), the driven gear (1305) is rotatably installed on the fixed column (1304), the transmission gear (1303) is engaged with the driven gear (1305), the driven gear (1305) is provided with the transmission disc (1306), and two groups of driven discs (1307) are rotatably installed on the base (5); the transmission belt (1308) is sleeved on the transmission disc (1306) and the driven disc (1307); The moving component (13) further comprises a fixed block (1309), a first telescopic rod (1310), a linkage plate (1311), a first supporting spring (1312), a connecting rod (1313) and a tensioning roller (1314); The base (5) is provided with the fixed block (1309) on the both sides, the fixed block (1309) is provided with two groups of first telescopic rods (1310), the first telescopic rod (1310) is provided with the linkage plate (1311), the linkage plate (1311) is connected with the fixed block (1309) through the first supporting spring (1312), the connecting rod (1313) is installed on the linkage plate (1311), the tensioning roller (1314) is rotatably installed on the connecting rod (1313), and the tensioning roller (1314) is in contact with the transmission belt (1308). The rotation utilization assembly (14) comprises an extrusion disc (1401), a support plate (1402), a second telescopic rod (1403), an extrusion plate (1404), a second support spring (1405) and an air bag (1406); The extrusion disc (1401) is installed on the driven disc (1307) and is in an oval structure; two groups of support plates (1402) are symmetrically installed on the side of the base (5) close to the driven disc (1307); the second telescopic rods (1403) are installed on the opposite surfaces of the two groups of support plates (1402); the extrusion plates (1404) are installed on the second telescopic rods (1403); the extrusion plates (1404) are connected with the base (5) through the second support springs (1405); and the support plates (1402) and the extrusion plates (1404) are connected through the air bag (1406); The rotation utilization assembly (14) further comprises a connecting plate (1407), a rotating rod (1408), a hollow rotating disc (1409), a rotary joint (1410), a spray head (1411) and a cleaning plate (1412); The connecting plates (1407) are symmetrically installed on the fixed plate (11); the rotating rods (1408) are rotatably installed on the connecting plates (1407); the hollow rotating discs (1409) are installed at one ends of the rotating rods (1408); the rotary joints (1410) are arranged on the hollow rotating discs (1409); the output ends of the air bags (1406) are connected with the rotary joints (1410) through air tubes; the spray heads (1411) are installed on the circumferential side walls of the hollow rotating discs (1409); and the cleaning plates (1412) are installed at the other ends of the rotating rods (1408).

2. The tower crane steel structure damage-preventing type inspection device according to claim 1, characterized in that: Two groups of electric adjusting rods (6) are symmetrically installed on the two sides of the base (5); and the clamping plates (7) are installed on the two groups of electric adjusting rods (6).

3. The tower crane steel structure damage-preventing type inspection device according to claim 1, characterized in that: The input end of the air bag (1406) and the air tube are both provided with a one-way valve; and the spray heads (1411) are annularly arranged on the hollow rotating disc (1409).

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