Unmanned intelligent tower crane device based on BIM and RFID technologies

Abstract

The invention belongs to the field of tower crane devices, particularly relates to an unmanned intelligent tower crane device based on BIM (Building Information Modeling) and RFID (Radio Frequency Identification Device) technologies, and aims to solve the problems that the bottom of a material is in a suspended state and the material is easy to slip off from a hook due to certain weight or over-smooth side surface when the two sides of the material are grabbed by an existing clamping jaw for hoisting. Comprising a base, two clamping plates arranged at the bottom of the base, a bottom groove formed in the surface of the bottom of the base, a first threaded rod rotationally connected to an inner cavity of the bottom groove, first threaded sleeves in threaded connection to the two sides of the peripheral face of the first threaded rod, and an anti-sliding mechanism used for improving the stability of clamped materials. Through the supporting effect of the supporting base on materials, the bottoms of the materials are not in a suspended state any more, so that the situation that the materials slide down due to the fact that the materials are too heavy or the side faces are too smooth is avoided, and the use safety of the device is improved.

Description

Technical Field

[0001] The invention belongs to the field of tower crane devices, and in particular to an unmanned intelligent tower crane device based on BIM and RFID technologies. Background Art

[0002] Tower crane, also known as tower crane, is the most commonly used lifting equipment in construction sites or large cargo transportation sites. Its main function is to lift materials, which can be horizontal or vertical transportation. The materials it lifts include steel bars, wood slats, concrete, steel pipes or containers.

[0003] In the prior art, the claws of the clamping device of the intelligent tower crane device directly grasp the two sides of the material for lifting. The bottom of the material is suspended in the air, and it is easy for the material to slip off the hook due to a certain weight or the side is too smooth, which poses a serious safety hazard. In addition, the main method used for traditional tower crane material transportation has the disadvantages of great safety hazards, high cost, and limited usage scenarios. The main reason is that manual operation of the tower crane involves repetitive operations, the driver is prone to fatigue, and there are safety hazards. In addition, the use of IoT devices has too many sensors and costs too much.

[0004] To this end, the present invention provides an unmanned intelligent tower crane device based on BIM and RFID technology. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the unmanned intelligent tower crane device based on BIM and RFID technology described in the present invention includes a base, two clamping plates arranged at the bottom of the base, a bottom groove opened on the bottom surface of the base, a first threaded rod rotatably connected to the inner cavity of the bottom groove, a first threaded sleeve threadedly connected to both sides of the outer circumference of the first threaded rod, and an anti-slip mechanism for improving the stability of clamped materials, the bottom of the first threaded sleeve is fixed to the surface of the top of the clamping plate at an adjacent position;

[0007] The anti-slip mechanism includes an extension component and a support component;

[0008] The extension component includes a second threaded rod rotatably connected to the inner cavity surface of the clamping plate, a second threaded sleeve threadedly connected to the outer circumferential surface of the second threaded rod, a sliding plate fixed to the side surfaces of the two second threaded sleeves away from each other, a second threaded sleeve fixed to the side surface of one of the first threaded sleeves, a rotating shaft that passes through and is rotatably connected to the middle position of the first threaded sleeve, a first bevel gear fixedly sleeved on the second threaded rod and extending to the inner cavity of the first threaded sleeve at an adjacent position, a second bevel gear fixedly sleeved on the rotating shaft and located in the inner cavity of the first threaded sleeve at an adjacent position, and a first interference component for connecting the two rotating shafts.

[0009] Preferably, the support assembly includes two sliding rods slidably inserted on the bottom surface of the sliding plate, a support seat fixed to the surface of the side where the two sliding rods are close to each other, a connecting plate fixed to the side where the two sliding rods are away from each other, an abutment seat fixed to the bottom surface of the clamping plate, and a rebound positioning component acting on the connecting plate.

[0010] Preferably, the first bevel gear is meshingly connected with the second bevel gear at an adjacent position, and one side of one of the rotating shafts is fixed to the output end of the second threaded sleeve.

[0011] Preferably, the first abutment component includes a first plug fixed to one side of the surface of the rotating shaft close to the second threaded sleeve and a first rectangular groove extending through the middle position of the other rotating shaft, and the first rectangular groove and the first plug are connected in a through-insertion manner.

[0012] Preferably, the rebound positioning component includes a first spring sleeved on the outer peripheral surface of the sliding rod and an electromagnetic column fixed to the surface of the connecting plate and the sliding plate located in the middle position of the two sliding rods, one side of the first spring is fixed to the surface of the sliding plate at the adjacent position, and the other side of the first spring is fixed to the surface of the connecting plate at the adjacent position.

[0013] Preferably, it also includes a scanning mechanism for obtaining information of the grasped material, the scanning mechanism includes a connecting seat fixed to the surface of one end of the two sliding plates and arranged in an L shape, a center plate movably inserted at the middle position of the two connecting seats, an RFID reader arranged at one end of the center plate, a translation component for expanding the scanning range of the center plate, and a protective component acting on the center plate and the RFID reader.

[0014] Preferably, the translation assembly includes a rotating rod rotatably connected to the middle position of one end surface of the center plate, a rotating disk fixed to the surface of one end of the rotating rod, a sleeve seat fitted on the surface of the rotating disk, an interference rod inserted in the inner cavity of the sleeve seat, connecting plates fixed at the upper and lower ends of the rotating disk, a tooth seat fixed to the surface of one end of one of the clamping plates, a movable rod passing through and rotatably connected to the surface of one of the connecting seats, a circular gear fixedly sleeved on one end of the outer circumference of the movable rod, two movable shafts rotatably connected to one of the connecting seats at a position on one side of the movable rod and at a position on the surface of the center plate near the rotating rod, a third bevel gear fixedly sleeved on the surface of the other end of the movable rod, and an outer circumference of the rotating rod. A third bevel gear, a fourth bevel gear fixedly mounted on the outer circumferential surface of the movable shaft, an opening penetrating through the center plate at one side of the circular gear, and a second interference component for connecting the two movable shafts, the circular gear and the gear seat are meshingly connected, the third bevel gear and the adjacent movable shaft are meshingly connected, the movable rod and the opening are through-connected, one end of the interference rod is fixed to the surface of the rotating disk, one end of the connecting plate is fixed to the surface of the RFID reader, the second interference component includes a second rectangular groove penetrating through the middle position of the movable shaft and a second plug column penetrating through the middle position of the two second rectangular grooves.

[0015] Preferably, the protective component includes a storage groove opened on the surface of one end of the other clamping plate, an embedded shaft fixed in the inner cavity of the storage groove, and a limiting seat slidably sleeved on the outer circumferential surface of the embedded shaft, one end of the limiting seat is fixed to the surface of the center plate, the protective component also includes two positioning seats arranged on the outside of the middle position of the first threaded rod and a second spring fixed to the two positioning seats away from each other, and the positioning seats are fixed to the inner cavity of the bottom groove.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention clamps the surfaces of both sides of the material with the clamping plate, and then starts the second threaded sleeve to make the two second threaded rods rotate synchronously, so that the clamping plate moves in the vertical direction. When the support seat moves to the bottom of the material, the support seat moves to the bottom of the material under the action of the first spring rebound force. The support seat supports the material so that the bottom of the material is no longer in a suspended state, thereby avoiding the material from slipping due to excessive weight or too smooth sides, thereby improving the safety of the device.

[0018] 2. The present invention installs a recyclable RFID chip with material information at a specific position on the surface of the material, and drives the center plate to move when the sliding plate moves vertically downward, so that the center plate can scan the RFID chip, so that after uploading the information of the RFID chip to the cloud, the corresponding material information can be found in the BIM model. The system plans the hoisting path through the position coordinates of the tower crane, the position information of the material lifting point and the hook point, so that the material transportation operation is practical, economical and has a wide range of uses. And when the center plate moves with the sliding plate, it makes it reciprocate in the horizontal direction, so as to expand the scanning range of the center plate, avoid the situation where the center plate fails to scan the RFID chip due to certain errors in the installation of the RFID chip, and thus help to improve the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction;

[0021] Figure 2 The present invention Figure 1 A schematic diagram of the structure enlargement at the center A;

[0022] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the present invention in the front view direction;

[0023] Figure 4 The present invention Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0024] Figure 5 The present invention Figure 3 A schematic diagram of the structure enlarged at C in the middle;

[0025] Figure 6 The present invention Figure 3 A schematic diagram of the structure at D in the middle is enlarged;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of a local structure in the present invention;

[0027] Figure 8 The present invention Figure 7 Enlarged schematic diagram of the structure at E in the middle.

[0028] In the figure: 1, base; 2, clamping plate; 3, sliding plate; 4, bottom groove; 5, first threaded rod; 6, motor; 7, first threaded sleeve; 8, second threaded rod; 9, second threaded sleeve; 10, first bevel gear; 11, rotating shaft; 12, second bevel gear; 13, first rectangular groove; 14, first plug column; 15, support seat; 16, sliding rod; 17, first spring; 18, connecting plate; 19, electromagnetic column; 20, connecting seat; 21, center plate; 2 2. RFID reader; 23. Rotating disk; 24. Sleeve; 25. Interference rod; 26. Connecting plate; 27. Rotating rod; 28. Gear seat; 29. ​​Movable rod; 30. Circular gear; 31. Third bevel gear; 32. Movable shaft; 33. Fourth bevel gear; 34. Second rectangular groove; 35. Second plug column; 36. Storage groove; 37. Embedded shaft; 38. Limiting seat; 39. Positioning seat; 40. Second spring; 41. Interference seat; 42. Opening. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] like Figure 1-8 As shown, the unmanned intelligent tower crane device based on BIM and RFID technology in an embodiment of the present invention comprises a base 1, two clamping plates 2 arranged at the bottom of the base 1, a bottom groove 4 opened on the bottom surface of the base 1, a first threaded rod 5 rotatably connected to the inner cavity of the bottom groove 4, a first threaded sleeve 7 threadedly connected to both sides of the outer circumference of the first threaded rod 5, and an anti-slip mechanism for improving the stability of clamping materials, and the bottom of the first threaded sleeve 7 is fixed to the surface of the top of the clamping plate 2 at an adjacent position;

[0032] The device is moved to the top position of the material to be grasped by controlling the tower crane, so that the two clamps 2 are located on both sides of the material, and the inner surface of the clamp 2 is in contact with the top surface of the material, and then the motor 6 is started to rotate the first threaded rod 5. Since the inner cavity of the bottom groove 4 can play a role of resistance and limitation on the first threaded sleeve 7 and the external thread structures on both sides of the outer circumference of the first threaded rod 5 are arranged in opposite directions, the distance between the two clamps 2 can be reduced under the cooperation of the threaded connection between the first threaded sleeve 7 and the first threaded rod 5, so that the material can be clamped, and when the material is lifted, the stability of the material clamping can be improved through the anti-slip mechanism to prevent it from slipping.

[0033] like Figure 1-8 As shown, the anti-slip mechanism includes an extension component and a support component;

[0034] The extension component includes a second threaded rod 8 rotatably connected to the inner cavity surface of the clamping plate 2, a second threaded sleeve 9 threadedly connected to the outer circumferential surface of the second threaded rod 8, a sliding plate 3 fixed to the side surfaces of the two second threaded sleeves 9 away from each other, a second threaded sleeve 9 fixed to the side surface of one of the first threaded sleeves 7, a rotating shaft 11 that penetrates and is rotatably connected to the middle position of the first threaded sleeve 7, a first bevel gear 10 fixedly sleeved on the second threaded rod 8 and extending to the inner cavity of the first threaded sleeve 7 at an adjacent position, a second bevel gear 12 fixedly sleeved on the rotating shaft 11 and located in the inner cavity of the first threaded sleeve 7 at an adjacent position, and a first abutting component for connecting the two rotating shafts 11, the first bevel gear 10 is meshingly connected with the second bevel gear 12 at an adjacent position, and one side of one rotating shaft 11 is fixed to the output end of the second threaded sleeve 9;

[0035] By starting the second threaded sleeve 9 to make one of the rotating shafts 11 rotate, the two rotating shafts 11 can be rotated synchronously under the action of the first resistance, so that the two second threaded rods 8 can be rotated synchronously in the same direction under the meshing action between the second bevel gear 12 and the first bevel gear 10 at the adjacent position. Since the inner cavity surface of the second threaded rod 8 can play a role of resistance and limitation on the second threaded sleeve 9, the two sliding plates 3 can be moved synchronously in the vertical direction under the meshing action between the second threaded sleeve 9 and the second threaded rod 8 at the adjacent position, so that the vertical downward extension height of the sliding plate 3 can be adjusted according to materials of different heights.

[0036] like Figure 1-8 As shown, the first abutment member includes a first plug post 14 fixed to one side of the surface of the rotating shaft 11 close to the second threaded sleeve 9 and a first rectangular groove 13 penetrating and opening at the middle position of the other rotating shaft 11, and the first rectangular groove 13 and the first plug post 14 are connected in a penetrating manner;

[0037] When the second threaded sleeve 9 is started to rotate one of the rotating shafts 11 , the first plug post 14 can be driven to rotate so that the other rotating shaft 11 can also rotate synchronously in the same direction due to the interference between the first plug post 14 and the first rectangular groove 13 .

[0038] like Figure 1-8 As shown, the support assembly includes two sliding rods 16 slidably inserted on the bottom surface of the sliding plate 3, a support seat 15 fixed to the surface of the two sliding rods 16 on the side close to each other, a connecting plate 18 fixed to the side away from each other of the two sliding rods 16, an abutment seat 41 fixed to the bottom surface of the clamping plate 2, and a rebound positioning component acting on the connecting plate 18;

[0039] Through the action of the rebound positioning component, when the support seat 15 moves to the bottom of the clamping plate 2 to grab the material, and under the action of the extension component, the support seat 15 can fit the surface of the bottom of the material, so that the bottom of the material is no longer in a suspended state, thereby avoiding the material from slipping due to excessive weight or too smooth sides, and under the limiting action of the rebound positioning component, the support seat 15 will not move in the horizontal direction when supporting, thereby improving the stability of the supported material, and when unloading, the extension component drives the support seat 15 to move vertically upward, so that under the interference between the support seat 15 and the interference seat 41 and the action of the rebound positioning component, the support seat 15 can be separated from the bottom of the material so that the material can be unloaded.

[0040] like Figure 1-8 As shown, the rebound positioning component includes a first spring 17 sleeved on the outer circumference of the sliding rod 16 and an electromagnetic column 19 fixed to the surface of the connecting plate 18 and the sliding plate 3 located at the middle position of the two sliding rods 16, one side of the first spring 17 is fixed to the surface of the adjacent sliding plate 3, and the other side of the first spring 17 is fixed to the surface of the adjacent connecting plate 18;

[0041] When the sliding plate 3 does not move vertically downward, the support seat 15 is in contact with the surface of one side of the clamping plate 2. At this time, the first spring 17 is in a compressed state, and when the sliding plate 3 moves vertically to drive the support seat 15 to move vertically downward, the support seat 15 will be in contact with the surfaces on both sides of the clamping plate 2 to clamp the material. At this time, the first spring 17 is still in a compressed state until the sliding plate 3 drives the support seat 15 to move to the bottom of the material. The support seat 15 will move to the surface of the bottom of the material and the two adjacent electromagnetic columns 19 under the action of the rebound force of the first spring 17, and the electromagnetic columns 19 will be turned on, so that the support seat 15 can be positioned under the magnetic attraction between the two adjacent electromagnetic columns 19, and when the extension component drives the support seat 15 to move vertically upward during the unloading process, the two electromagnetic columns 19 are closed so that the two support seats 15 can be in contact with the adjacent contact seats 41. The distance between each other is expanded, so that the support seat 15 is separated from the bottom of the clamped material, so that the material can be unloaded when the distance between the clamping plates 2 is expanded.

[0042] Embodiment 2:

[0043] The main method of material transportation using traditional tower cranes has disadvantages such as great safety hazards, high costs, and limited usage scenarios. The main reason is that manual operation of tower cranes involves repetitive operations, which easily leads to driver fatigue and safety hazards. The use of IoT devices has too many sensors and costs too much.

[0044] For this purpose, refer to Figure 1 - Figure 8It is worth noting that it also includes a scanning mechanism for obtaining the information of the grasped material, the scanning mechanism includes a connecting seat 20 fixed to one end surface of the two sliding plates 3 and arranged in an L shape, a center plate 21 movably inserted at the middle position of the two connecting seats 20, an RFID reader 22 arranged at one end of the center plate 21, a translation component for expanding the scanning range of the center plate 21, and a protective component acting on the center plate 21 and the RFID reader 22;

[0045] By inputting the model information of the tower crane and the information of the materials to be hoisted in the BIM model, including the location information of the tower crane, the name, weight, volume, lifting point and hook drop point of the materials to be hoisted, and installing a control chip inside the tower crane to control the hoisting process of the tower crane, including lifting, rotation, amplitude change, speed, angle and lifting weight of each process, etc., the automatic hoisting of the tower crane is realized, and a recyclable RFID chip with material information is installed at a specific position on the surface of one end of the material, and the sliding plate 3 drives the center plate 21 to move when the sliding plate 3 moves vertically downward, so that the center plate 21 can scan the RFID chip of the grasped material and read the material information on the chip and upload it to the cloud. After the cloud reads the material information, the corresponding component information is found in the BIM model, and then the hoisting path is planned according to the position of the tower crane, the lifting point and hook drop point of the materials to be hoisted. After confirming the hoisting path, the system issues a control command, and controls the tower crane to hoist and transport the materials to be hoisted according to the planned path through the control chip, so that the device has the advantages of strong practicality, strong economic applicability and wide range of use when transporting materials;

[0046] In this process, the scanning range of the center plate 21 is increased by the action of the translation component, thereby avoiding the situation where the center plate 21 fails to scan the RFID chip due to certain errors in the installation of the RFID chip. The protective component can guide the movement trajectory of the center plate 21 when the sliding plate 3 moves vertically, and can prevent the connection seat 20 from colliding with the RFID reader 22 when the two clamping plates 2 move toward each other.

[0047] Reference Figure 1 - Figure 8It is worth mentioning that the translation assembly includes a rotating rod 27 rotatably connected to the middle position of one end surface of the center plate 21, a rotating disk 23 fixed to one end surface of the rotating rod 27, a sleeve 24 fitted on the surface of the rotating disk 23, an abutment rod 25 inserted into the inner cavity of the sleeve 24, a connecting plate 26 fixed to the upper and lower ends of the rotating disk 23, a tooth seat 28 fixed to one end surface of one of the clamping plates 2, a movable rod 29 passing through and rotatably connected to the surface of one of the connecting seats 20, a circular gear 30 fixedly sleeved on one end of the outer circumference of the movable rod 29, and two movable shafts 32 rotatably connected to one of the connecting seats 20 at one side of the movable rod 29 and at the surface of the center plate 21 near the rotating rod 27. , a third bevel gear 31 fixedly sleeved on the other end surface of the movable rod 29 and a third bevel gear 31 on the outer circumference of the rotating rod 27, a fourth bevel gear 33 fixedly sleeved on the outer circumference of the movable shaft 32, an opening 42 penetrating through the center plate 21 at one side of the circular gear 30, and a second abutment component for connecting the two movable shafts 32, the circular gear 30 and the tooth seat 28 are meshingly connected, the third bevel gear 31 and the adjacent movable shaft 32 are meshingly connected, the movable rod 29 and the opening 42 are through-inserted and connected, one end of the abutment rod 25 is fixed to the surface of the rotating disk 23, and one end of the connecting plate 26 is fixed to the surface of the RFID reader 22;

[0048] When the sliding plate 3 moves in the vertical direction, it drives the circular gear 30 and the tooth seat 28 to mesh, so that the movable rod 29 rotates, so that one of the movable shafts 32 can rotate under the meshing action between the two third bevel gears 31 and the fourth bevel gear 33, so that the other movable shaft 32 can rotate under the action of the second interference component, so that the rotating rod 27 can rotate under the meshing action between the other two third bevel gears 31 and the fourth bevel gear 33, so that the rotating rod 27 can rotate, so that the rotating disk 23 drives the interference rod 25 to make a circular motion, so that the sleeve 24 can reciprocate in the horizontal direction under the interference action of the interference rod 25 on the sleeve 24, so that the RFID reader 22 can reciprocate in the horizontal direction, so as to expand the scanning range of the RFID reader 22, and when the two clamps 2 move in the direction of approaching each other, the movable rod 29 can slide in the inner cavity of the opening 42 to support the movable rod 29.

[0049] Reference Figure 1 - Figure 8 It is worth noting that the second abutting member includes a second rectangular groove 34 extending through the middle of the movable shaft 32 and a second plug post 35 extending through the middle of the two second rectangular grooves 34;

[0050] When one of the movable shafts 32 rotates, the other movable shaft 32 can rotate accordingly due to the interference between the second plug post 35 and the inner cavities of the two second rectangular grooves 34 .

[0051] Reference Figure 1 - Figure 8 It is worth noting that the protection assembly includes a storage groove 36 opened on the surface of one end of another clamping plate 2, an embedded shaft 37 fixed to the inner cavity of the storage groove 36, and a limiting seat 38 slidably sleeved on the outer circumference of the embedded shaft 37, and one end of the limiting seat 38 is fixed to the surface of the center plate 21;

[0052] When the center plate 21 moves along the vertical direction with the sliding plate 3, it drives the limiting seat 38 to slide along the outer peripheral surface of the embedded shaft 37 in the inner cavity of the storage groove 36, thereby supporting and limiting the movement trajectory of the center plate 21, making its movement trajectory more stable.

[0053] Reference Figure 1 - Figure 8 It is worth noting that the protection assembly also includes two positioning seats 39 arranged outside the middle position of the first threaded rod 5 and a second spring 40 fixed to the two positioning seats 39 away from each other. The positioning seats 39 are fixed to the inner cavity of the bottom groove 4;

[0054] The displacement range of the first threaded sleeve 7 can be limited by the positioning seat 39, so that when the distance between the two sliding plates 3 changes, it will not collide with the RFID reader 22, and the rebound force of the second spring 40 can play a buffering role between the first threaded sleeve 7 and the adjacent positioning seat 39.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An unmanned intelligent tower crane device based on BIM and RFID technology, comprising a base (1), two clamping plates (2) arranged at the bottom of the base (1), a bottom groove (4) opened on the bottom surface of the base (1), a first threaded rod (5) rotatably connected to the inner cavity of the bottom groove (4), a first threaded sleeve (7) threadedly connected to both sides of the outer circumference of the first threaded rod (5), and an anti-slip mechanism for improving the stability of clamping materials, wherein the bottom of the first threaded sleeve (7) is fixed to the surface of the top of the clamping plate (2) at an adjacent position, and is characterized in that: It also includes an anti-slip mechanism for improving the stability of the clamped material, and the bottom of the first threaded sleeve (7) is fixed to the surface of the top of the adjacent clamping plate (2); The anti-slip mechanism includes an extension component and a support component; The extension assembly comprises a second threaded rod (8) rotatably connected to the inner cavity surface of the clamping plate (2), a second threaded sleeve (9) threadedly connected to the outer peripheral surface of the second threaded rod (8), a sliding plate (3) fixed to the surfaces of the two second threaded sleeves (9) on the side away from each other, a second threaded sleeve (9) fixed to the side surface of one of the first threaded sleeves (7), a rotating shaft (11) passing through and rotatably connected to the middle position of the first threaded sleeve (7), a first bevel gear (10) fixedly sleeved on the second threaded rod (8) and extending to the inner cavity of the first threaded sleeve (7) at an adjacent position, a second bevel gear (12) fixedly sleeved on the rotating shaft (11) and located in the inner cavity of the first threaded sleeve (7) at an adjacent position, and a first abutment component for connecting the two rotating shafts (11).

2. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 1 is characterized in that: The support assembly comprises two sliding rods (16) slidably inserted on the bottom surface of the sliding plate (3), a support seat (15) fixed to the surface of the two sliding rods (16) on the side close to each other, a connecting plate (18) fixed to the side of the two sliding rods (16) away from each other, an abutment seat (41) fixed to the bottom surface of the clamping plate (2), and a rebound positioning component acting on the connecting plate (18).

3. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 1 is characterized in that: The first bevel gear (10) is meshingly connected with the second bevel gear (12) at an adjacent position, and one side of one of the rotating shafts (11) is fixed to the output end of the second threaded sleeve (9).

4. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 1 is characterized in that: The first abutting component comprises a first plug post (14) fixed to one side of the surface of the rotating shaft (11) close to the second threaded sleeve (9) and a first rectangular groove (13) penetrating and opening at the middle position of the other rotating shaft (11); the first rectangular groove (13) and the first plug post (14) are connected in a penetrating manner.

5. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 2 is characterized in that: The rebound positioning component comprises a first spring (17) sleeved on the outer peripheral surface of the sliding rod (16) and an electromagnetic column (19) fixed to the surface of the connecting plate (18) and the sliding plate (3) located at the middle position between the two sliding rods (16), one side of the first spring (17) is fixed to the surface of the sliding plate (3) at the adjacent position, and the other side of the first spring (17) is fixed to the surface of the connecting plate (18) at the adjacent position.

6. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 1 is characterized in that: The invention also comprises a scanning mechanism for acquiring information of the grasped material, wherein the scanning mechanism comprises a connecting seat (20) fixed to one end surface of the two sliding plates (3) and arranged in an L shape, a central plate (21) movably inserted at a middle position between the two connecting seats (20), an RFID reader (22) arranged at one end of the central plate (21), a translation component for expanding the scanning range of the central plate (21), and a protective component acting on the central plate (21) and the RFID reader (22).

7. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 6 is characterized in that: The translation assembly comprises a rotating rod (27) rotatably connected to the middle position of one end surface of the center plate (21), a rotating disk (23) fixed to one end surface of the rotating rod (27), a sleeve (24) arranged in close contact with the surface of the rotating disk (23), a resisting rod (25) inserted into the inner cavity of the sleeve (24), a connecting plate (26) fixed to the upper and lower ends of the rotating disk (23), a tooth seat (28) fixed to one end surface of one of the clamping plates (2), a movable rod (29) passing through and rotatably connected to the surface of one of the connecting seats (20), a circular gear (30) fixedly sleeved on one end of the outer circumference of the movable rod (29), two movable shafts (32) rotatably connected to one of the connecting seats (20) at one side of the movable rod (29) and at a position on the surface of the center plate (21) close to the rotating rod (27), a third bevel gear (31) fixedly sleeved on the other end surface of the movable rod (29), and a rotating rod (27). A third bevel gear (31) on the outer circumference, a fourth bevel gear (33) fixedly sleeved on the outer circumference of the movable shaft (32), an opening (42) penetrating through the center plate (21) at a position on one side of the circular gear (30), and a second abutment component for connecting the two movable shafts (32); the circular gear (30) and the tooth seat (28) are meshingly connected, the third bevel gear (31) and the adjacent movable shafts (32) are meshingly connected, the movable rod (29) and the opening (42) are through-inserted and connected, one end of the abutment rod (25) is fixed to the surface of the rotating disk (23), one end of the connecting plate (26) is fixed to the surface of the RFID reader (22), and the second abutment component includes a second rectangular groove (34) penetrating through the middle position of the movable shaft (32) and a second plug column (35) penetrating and plugged into the middle position of the two second rectangular grooves (34).

8. The unmanned intelligent tower crane device based on BIM and RFID technology according to claim 7 is characterized in that: The protective component comprises a storage groove (36) provided on one end surface of the other clamping plate (2), an embedded shaft (37) fixed in the inner cavity of the storage groove (36), and a limiting seat (38) slidably sleeved on the outer peripheral surface of the embedded shaft (37), one end of the limiting seat (38) is fixed to the surface of the center plate (21), and the protective component also comprises two positioning seats (39) arranged outside the middle position of the first threaded rod (5) and a second spring (40) fixed to the two positioning seats (39) away from each other, and the positioning seat (39) is fixed to the inner cavity of the bottom groove (4).

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