A hoisting device for transporting building materials

Abstract

The present invention provides a lifting device for transporting building materials, which relates to the technical field of construction engineering machinery. It includes a lifting structure. The lifting structure includes an installation foundation, on which a tower standard section is installed. A jacking sleeve frame is installed on the tower standard section, and a lower equipment platform and an upper equipment platform are installed on the jacking sleeve frame. A slewing platform is installed at the top of the jacking sleeve frame. The lifting device for transporting building materials enables the boom to flip from a horizontal state to a vertical state through a boom installation structure. The flipping structure can apply a flipping force to the boom installation structure to enable the boom to switch between the horizontal state and the vertical state. The boom can be vertically arranged to reduce the lateral boom length, aiming to reduce the torque exerted by the boom on the tower standard section in extreme weather conditions, so that the lifting device for transporting building materials is less stressed and has stronger safety protection ability in extreme weather conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering machinery, and particularly to a lifting device for transporting building materials. Background Art

[0002] In the field of building material transportation, tower cranes, as commonly used lifting devices, undertake the key tasks of vertical and horizontal transportation of building materials. Their safe operation directly affects the project progress and the safety of personnel's lives and property. Under extreme weather conditions such as strong winds and typhoons, tower cranes are prone to accidents such as overturning and structural damage, resulting in material falling and equipment damage.

[0003] Currently, the traditional anti-wind measures for tower cranes mainly include rail clamps, anchoring devices, and wind speed alarm systems. The rail clamp restricts the sliding of the tower crane by mechanically clamping the rail, but due to vibration under strong winds, the clamping force decays, making it difficult to firmly fix the tower crane and possibly causing the building materials being hoisted to get out of control; the anchoring device requires pre-burying anchoring points on the ground in advance, which is only applicable to fixed working conditions and cannot meet the needs of the tower crane for frequent transfer and hoisting of building materials; although the wind speed alarm system can warn of dangerous wind speeds, it lacks the ability to actively prevent wind and often requires manual intervention to stop the machine, making it difficult to ensure the safety of the tower crane.

[0004] Therefore, we propose a lifting device for transporting building materials to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and propose a lifting device for transporting building materials. It can change its orientation in a dangerous environment and fold up in extreme weather conditions. It has the advantages of small force, good wind prevention effect, and strong safety protection ability, and solves the problem that tower cranes are prone to accidents such as overturning and structural damage under extreme weather conditions such as strong winds and typhoons.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A lifting device for transporting building materials, including a lifting structure. The lifting structure includes an installation foundation, on which a tower body standard section is installed. On the tower body standard section, a jacking sleeve is installed. On the jacking sleeve, a lower equipment platform and an upper equipment platform are installed. At the top of the jacking sleeve, a slewing platform is installed. On the slewing platform, a cab is installed. On the slewing platform, a loading structure is installed. On the loading structure, a boom installation structure and a flipping structure are installed. On the boom installation structure, a positioning structure is provided. On the boom installation structure, a boom is installed. At the end of the boom, a counterweight boom is installed. On the counterweight boom, a counterweight is installed. The counterweight boom and the boom are provided with a hoisting system. The boom is provided with a luffing system. The luffing system is connected to a luffing trolley. The luffing trolley is movably installed on the boom. On the boom installation structure, a tower cap is installed. On the tower cap, a wind direction and wind speed sensor and a direction sensor are installed.

[0007] By adopting the above technical solutions, the hoisting device for transporting building materials can automatically adjust the balance arm in a dangerous environment so that the end of the balance arm points to the Laifeng direction, reducing the windward area of the balance arm and the boom, reducing the force on the boom, and at the same time using the standard tower sections of the tower body to block the wind and reduce the wind force on the building materials.

[0008] Further, the loading structure includes a loading column, the bottom end of the loading column is welded to the slewing platform, the top end of the loading column is welded with a loading vertical plate, a loading groove is opened on the top surface of the loading vertical plate, a through groove is opened on the bottom surface of the inner cavity of the loading groove, the balance arm and the boom are arranged in the loading groove, and the through groove can allow the luffing system to pass through.

[0009] By adopting the above technical solutions, the boom can transfer the load to the standard tower sections of the tower body when it has the flipping function, so that the hoisting device for transporting building materials has the original structure and original functions of a tower crane, ensuring that the hoisting device for transporting building materials can normally perform the functions of a tower crane.

[0010] Further, the force arm mounting structure includes a load-bearing jack, the load-bearing jack is opened on the loading vertical plate and communicated with the loading groove, a load-bearing plug shaft is movably inserted into the load-bearing jack, the end of the load-bearing plug shaft is connected with a flipping arm plate, the flipping arm plate is slidably inserted into the inner part of the loading groove, the tower cap is welded on the top surface of the flipping arm plate, and an installation chute is opened on the surface of the flipping arm plate, and the boom is slidably inserted into the installation chute.

[0011] By adopting the above technical solutions, the boom can be flipped from the horizontal state to the vertical state. By arranging the boom vertically, it plays a role in reducing the lateral force arm, aiming to reduce the torque exerted by the boom on the standard tower sections of the tower body in extreme weather conditions, so that the hoisting device for transporting building materials is less stressed in extreme weather conditions.

[0012] Further, the positioning structure includes a positioning arc hole, the positioning arc hole is opened on the flipping arm plate, the positioning arc hole is communicated with the installation chute, a positioning arc strip is slidably inserted into the positioning arc hole, one end of the positioning arc strip is welded to the bottom surface of the inner cavity of the loading groove, and the positioning structure further includes an opening card slot, the opening card slot is opened on the boom, and the positioning arc strip is movably inserted into the opening card slot.

[0013] By adopting the above technical solutions, the position of the boom relative to the flipping arm plate is fixed, so that it cannot move by itself, ensuring that the boom can function normally and stably.

[0014] Furthermore, the flipping structure includes a driving motor and a mounting vertical plate. The driving motor is bolted to the bottom surface of the loading vertical plate. A flipping worm is connected to the output shaft of the driving motor. A holding vertical plate is rotatably installed at the end of the flipping worm. The holding vertical plate is welded to the bottom surface of the loading vertical plate. The mounting vertical plate is welded to the bottom surface of the loading vertical plate. A flipping shaft body is rotatably installed on the mounting vertical plate. A scroll gear is fixedly sleeved on the flipping shaft body. A driving small wheel is fixedly sleeved at the end of the flipping shaft body. The driving small wheel is connected to a driven large wheel through a driving chain. The driven large wheel is fixedly sleeved outside the load-bearing insertion shaft.

[0015] By adopting the above technical solution, a flipping force can be applied to the arm mounting structure, enabling the boom to switch between the horizontal state and the vertical state. At the same time, it has a self-locking function to restrict the arm mounting structure, preventing the arm mounting structure from swinging on its own, and further preventing the boom from swinging on its own, thus further avoiding the boom from being stressed and swinging in extreme weather conditions.

[0016] Furthermore, an anti-detachment structure is provided on the counterweight boom. The anti-detachment structure includes an anti-detachment housing. The anti-detachment housing is sleeved on the top of the counterweight. A fixed pressing edge is welded to the surface of the anti-detachment housing. A fixing bolt is provided on the fixed pressing edge. The fixing bolt is threadedly installed on the counterweight boom.

[0017] By adopting the above technical solution, the counterweight will not fall off after the boom is erected vertically.

[0018] Furthermore, a holding structure is provided on the lower equipment platform. The holding structure includes a holding block. The holding block is welded to the lower equipment platform. A holding groove is formed on the holding block. An opening groove is formed on the inner wall of the holding groove. A displacement sliding groove is formed on the inner wall of the opening groove. An electromagnetic generator is installed on the inner wall of the displacement sliding groove. A preloading spring is connected to the inner wall of the displacement sliding groove. The other end of the preloading spring is connected to a guiding sliding plate. The guiding sliding plate is slidably inserted into the displacement sliding groove. An extending convex block is connected to the guiding sliding plate. The extending convex block is slidably inserted into the opening groove. A chamfered slope is formed on one end surface of the extending convex block. The chamfered slope is adapted to the boom. A strong magnetic patch is installed on the other end surface of the extending convex block. The strong magnetic patch is adapted to the electromagnetic generator.

[0019] By adopting the above technical solution, the vertically erected boom can be fixed, preventing the boom from being stressed and swinging in extreme weather conditions. It can also fix the tower standard section and the boom together, with stronger wind resistance.

[0020] Compared with the prior art, the hoisting device for transporting building materials has the following beneficial effects:

[0021] 1. The present invention enables the boom to flip from a horizontal state to a vertical state through a lever arm mounting structure. The flipping structure can apply a flipping force to the lever arm mounting structure, enabling the boom to switch between the horizontal state and the vertical state. By vertically arranging the boom, the lateral lever arm can be reduced, aiming to reduce the torque exerted by the boom on the tower standard section under extreme weather conditions, making the lifting device for transporting building materials less stressed, having stronger safety protection capabilities, being less likely to overturn and be damaged under extreme weather conditions, having a longer service life, being applicable to fixed and mobile working conditions, and improving the practicality of the lifting device for transporting building materials.

[0022] 2. The present invention enables the boom to transfer the load to the tower standard section when it has the flipping function through a loading structure, so that the lifting device for transporting building materials has the original structure and original functions of a tower crane, ensuring that the lifting device for transporting building materials can normally perform the functions of a tower crane. By controlling the position of the luffing trolley through the luffing system, the vertical boom can move up and down. When the boom moves downward, the total height of the lifting device for transporting building materials can be reduced, playing a role in reducing the vertical lever arm. The aim is to reduce the forces on the tower standard section and the boom under extreme weather conditions, avoiding the tower standard section and the boom from being overturned, bent or broken due to excessive forces, making the lifting device for transporting building materials less stressed, having stronger safety protection capabilities, being less likely to overturn and be damaged under extreme weather conditions, having a longer service life, being applicable to fixed and mobile working conditions, and improving the practicality of the lifting device for transporting building materials.

[0023] 3. The present invention enables the balance weight not to fall off after the boom is vertical through an anti - detachment structure. The holding structure can fix the vertical boom, preventing the boom from swinging under the action of force in extreme weather conditions. The flipping structure can limit the lever arm mounting structure, making the lever arm mounting structure unable to swing by itself, and further making the boom unable to swing by itself, further avoiding the boom from swinging under the action of force in extreme weather conditions. At the same time, the holding structure fixes the tower standard section and the boom together, having stronger wind resistance, effectively avoiding the lifting device for transporting building materials from overturning and being damaged under extreme weather conditions, having stronger safety protection capabilities, being less likely to overturn and be damaged under extreme weather conditions, having a longer service life, being applicable to fixed and mobile working conditions, and improving the practicality of the lifting device for transporting building materials.

[0024] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic three-dimensional structure diagram of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic three-dimensional structure diagram of the loading structure in the present invention;

[0027] Figure 3 For the present invention Figure 2 Schematic exploded view of the holding structure in the present invention;

[0028] Figure 4 For the present invention Figure 2 Schematic exploded view of the loading structure in the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic three-dimensional structure diagram of the slewing platform in the present invention;

[0030] Figure 6 For the present invention Figure 4 Schematic three-dimensional structure diagram of the boom in the present invention;

[0031] Figure 7 For the present invention Figure 4 Schematic three-dimensional structure diagram of the tower cap in the present invention;

[0032] Figure 8 For the present invention Figure 2 Schematic three-dimensional structure diagram of the upper part; Figure 1 ;

[0033] Figure 9 For the present invention Figure 2 Schematic three-dimensional structure diagram of the upper part; Figure 2 ;

[0034] Figure 10 For the present invention Figure 6 Schematic three-dimensional structure diagram of the upper part; Figure 1 ;

[0035] Figure 11 For the present invention Figure 6 Schematic three-dimensional structure diagram of the upper part; Figure 2 .

[0036] In the figure:

[0037] 1, lifting structure; 100, balance arm; 101, installation foundation; 102, tower standard section; 103, jacking sleeve; 104, lower equipment platform; 105, upper equipment platform; 106, slewing platform; 107, cab; 108, boom; 109, balance weight; 110, lifting system; 111, luffing system; 112, luffing trolley; 113, tower cap;

[0038] 2. Loading structure; 201. Loading column; 202. Loading vertical plate; 203. Loading groove; 204. Through groove;

[0039] 3. Lever arm mounting structure; 301. Load-bearing socket; 302. Load-bearing plug shaft; 303. Tipping arm plate; 304. Installation chute;

[0040] 4. Positioning structure; 401. Positioning arc hole; 402. Positioning arc strip; 403. Open slot;

[0041] 5. Tipping structure; 501. Driving motor; 502. Tipping worm; 503. Installation vertical plate; 504. Tipping shaft body; 505. Worm gear; 506. Driving small wheel; 507. Driving chain; 508. Driven large wheel; 509. Holding vertical plate;

[0042] 6. Anti-disengagement structure; 601. Anti-disengagement housing; 602. Fixed pressing edge; 603. Fixed bolt;

[0043] 7. Holding structure; 701. Holding block; 702. Holding groove; 703. Open slot; 704. Displacement chute; 705. Electromagnetic generator; 706. Preloading spring; 707. Guide sliding plate; 708. Extension bump; 709. Chamfered slope; 710. Strong magnetic patch;

[0044] 8. Wind direction and wind speed sensor;

[0045] 9. Direction sensor. Detailed implementation mode

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 to 11 , the present invention provides the following implementation solutions: A hoisting device for transporting building materials, including a hoisting structure 1. Please pay special attention to refer to Figure 1 , Figure 2 and Figure 6 . The hoisting structure 1 includes an installation base 101, a tower standard section 102 is installed on the installation base 101, a jacking sleeve 103 is installed on the tower standard section 102, a lower equipment platform 104 and an upper equipment platform 105 are installed on the jacking sleeve 103, a slewing platform 106 is installed at the top of the jacking sleeve 103, and a cab 107 is installed on the slewing platform 106.

[0048] Inside the cab 107, there are first and second preset values, and all the required information is preset inside the cab 107.

[0049] On the slewing platform 106, a loading structure 2 is installed. On the loading structure 2, a boom mounting structure 3 and a flipping structure 5 are installed. On the boom mounting structure 3, a positioning structure 4 is provided. On the boom mounting structure 3, a lifting boom 108 is installed. At the end of the lifting boom 108, a counterweight boom 100 is installed. On the counterweight boom 100, a counterweight 109 is installed. On the counterweight boom 100 and the lifting boom 108, a hoisting system 110 is arranged. On the hoisting system 110, a steel wire rope is provided. On the lifting boom 108, a luffing system 111 is arranged. The luffing system 111 is connected to a luffing trolley 112. The luffing trolley 112 is movably installed on the lifting boom 108. On the boom mounting structure 3, a tower cap 113 is installed.

[0050] On the tower cap 113, a wind direction and speed sensor 8 is installed.

[0051] The wind speed and direction are detected in real time by the wind direction and speed sensor 8 and the relevant information is sent to the cab 107.

[0052] On the tower cap 113, a direction sensor 9 is installed.

[0053] The extending direction of the lifting boom 108 is detected in real time by the direction sensor 9 and the relevant information is sent to the cab 107.

[0054] Through the cooperation of the slewing platform 106, the cab 107, the wind direction and speed sensor 8, and the direction sensor 9, the hoisting device for transporting building materials can automatically adjust the counterweight boom 100 so that its end points to the Laifeng direction in a dangerous environment, reducing the windward area of the counterweight boom 100 and the lifting boom 108, reducing the force on the lifting boom 108, and at the same time using the tower standard section 102 to block the wind and reducing the wind force on the building materials.

[0055] Please refer particularly to Figure 2 、 Figure 5 、 Figure 6 、 Figure 10 and Figure 11 , the loading structure 2 includes a loading column 201. The bottom end of the loading column 201 is welded to the slewing platform 106. The top end of the loading column 201 is welded with a loading plate 202. On the top surface of the loading plate 202, a loading groove 203 is opened. On the bottom surface of the inner cavity of the loading groove 203, a through groove 204 is opened. The counterweight boom 100 and the lifting boom 108 are arranged in the loading groove 203. The through groove 204 allows the luffing system 111 to pass through.

[0056] Through the loading structure 2, the boom 108 can transfer the load to the tower standard section 102 while having the flipping function, so that the hoisting device for building material transportation has the original structure and original function of a tower crane, ensuring that the hoisting device for building material transportation can normally perform the functions of a tower crane.

[0057] Please refer particularly to Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 , the boom mounting structure 3 includes a load-bearing jack 301, the load-bearing jack 301 is opened on the loading vertical plate 202 and communicated with the loading groove 203, a load-bearing plug shaft 302 is movably inserted into the load-bearing jack 301, a flipping arm plate 303 is connected to the end of the load-bearing plug shaft 302, the flipping arm plate 303 is slidably inserted into the loading groove 203, the tower cap 113 is welded on the top surface of the flipping arm plate 303, and an installation chute 304 is opened on the surface of the flipping arm plate 303, and the boom 108 is slidably inserted into the installation chute 304.

[0058] The boom 108 is fixed through the insertion between the boom 108 and the installation chute 304, so that the boom 108 can act relative to the flipping arm plate 303. Through the insertion between the load-bearing plug shaft 302 and the load-bearing jack 301, the boom 108 can be flipped from the horizontal state to the vertical state.

[0059] Please refer particularly to Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 , the positioning structure 4 includes a positioning arc hole 401, the positioning arc hole 401 is opened on the flipping arm plate 303, the positioning arc hole 401 is communicated with the installation chute 304, a positioning arc bar 402 is slidably inserted into the positioning arc hole 401, one end of the positioning arc bar 402 is welded on the bottom surface of the inner cavity of the loading groove 203, and the positioning structure 4 further includes an open slot 403, the open slot 403 is opened on the boom 108, and the positioning arc bar 402 is movably inserted into the open slot 403.

[0060] The position of the boom 108 relative to the flipping arm plate 303 is fixed through the insertion of the positioning arc bar 402 into the positioning arc hole 401 and the open slot 403, so that it cannot act on its own, ensuring that the boom 108 can function normally and stably.

[0061] Please refer particularly to Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9The flip structure 5 includes a driving motor 501 and a mounting vertical plate 503. The driving motor 501 is bolted on the bottom surface of the supporting vertical plate 202. A flip worm 502 is connected to the output shaft of the driving motor 501. A retaining vertical plate 509 is rotatably mounted on the end of the flip worm 502. The retaining vertical plate 509 is welded to the bottom surface of the supporting vertical plate 202. The mounting vertical plate 503 is welded to the bottom surface of the supporting vertical plate 202. A flip shaft 504 is rotatably mounted on the mounting vertical plate 503. A vortex gear 505 is fixedly sleeved on the flip shaft 504. A driving small wheel 506 is fixedly sleeved on the end of the flip shaft 504. The driving small wheel 506 is connected to a driven large wheel 508 through a driving chain 507. The driven large wheel 508 is fixedly sleeved on the outside of the load-bearing plug shaft 302.

[0062] By the meshing action between the flipping worm 502 and the vortex gear 505, a flipping force can be applied to the arm mounting structure 3, so that the boom 108 can be switched between the horizontal state and the vertical state. At the same time, it has a self-locking effect, which restricts the arm mounting structure 3, so that the arm mounting structure 3 cannot swing on its own, and thus the boom 108 cannot swing on its own, further preventing the boom 108 from swinging due to force under extreme weather conditions.

[0063] Please refer to Figure 6 , Figure 10 and Figure 11 The anti-slip structure 6 includes an anti-slip shell 601, which is sleeved on the top of the balancing weight 109. A fixed pressing edge 602 is welded on the surface of the anti-slip shell 601, and a fixing bolt 603 is provided on the fixed pressing edge 602. The fixing bolt 603 is threadedly installed on the balancing arm 100.

[0064] The balancing arm 100 is provided with an anti-drop structure 6, which blocks the balancing weight 109 through the anti-drop housing 601, so that the balancing weight 109 will not fall off after the lifting arm 108 is vertical.

[0065] Please refer to Figure 2 , Figure 3 , Figure 8 and Figure 9, a holding structure 7 is provided on the lower equipment platform 104. The holding structure 7 includes a holding block 701, the holding block 701 is welded to the lower equipment platform 104, a holding groove 702 is formed on the holding block 701, an opening groove 703 is formed on the inner wall of the holding groove 702, a displacement sliding groove 704 is formed on the inner wall of the opening groove 703, an electromagnetic generator 705 is installed on the inner wall of the displacement sliding groove 704, a preloading spring 706 is connected to the inner wall of the displacement sliding groove 704, the other end of the preloading spring 706 is connected to a guiding sliding plate 707, the guiding sliding plate 707 is slidably inserted into the displacement sliding groove 704, an extending convex block 708 is connected to the guiding sliding plate 707, the extending convex block 708 is slidably inserted into the opening groove 703, a chamfered inclined surface 709 is formed on one end surface of the extending convex block 708, the chamfered inclined surface 709 is adapted to the boom 108, a strong magnetic patch 710 is installed on the other end surface of the extending convex block 708, and the strong magnetic patch 710 is adapted to the electromagnetic generator 705.

[0066] The vertical boom 108 can be fixed by the extending convex block 708, preventing the boom 108 from swinging under the action of force in extreme weather conditions. It can also fix the tower standard section 102 and the boom 108 together, with stronger wind resistance.

[0067] Working principle: First, the wind direction and speed sensor 8 detects the wind speed and direction in real time and sends the relevant information to the cab 107. At the same time, the direction sensor 9 detects the extension direction of the boom 108 in real time. Then, the cab 107 compares the wind speed value detected by the wind direction and speed sensor 8 with the preset value inside it. After the wind speed value detected by the wind direction and speed sensor 8 is greater than the first preset value preset inside the cab 107, it indicates that the current weather conditions are not suitable for tower crane operation. Then, the cab 107 issues a warning to prompt the driver of the dangerous environment and at the same time issues a request to avoid risks. After that, the driver directly evacuates or evacuates after agreeing to the request. Then, if the cab 107 does not receive a reply within ten minutes or receives a reply agreeing to the request, then the cab 107 starts the avoidance procedure. After that, the cab 107 controls the operation of the hoisting system 110. Then, the hoisting system 110 lifts the building materials to the highest point to avoid ground buildings. After that, the cab 107 controls the rotation of the slewing platform 106. Then, the boom 108 and the tower cap 113 rotate synchronously. Next, the orientation detected by the direction sensor 9 gradually changes until the orientation detected by the direction sensor 9 is consistent with the wind direction detected by the wind direction and speed sensor 8. At this time, the counterweight arm 100 points its end towards the Laifeng direction, reducing the windward area of the counterweight arm 100 and the boom 108 to reduce the force on the boom 108. At the same time, the standard tower section 102 of the tower body is used to block the wind and reduce the wind force on the building materials. After that, the cab 107 controls the operation of the luffing system 111. Then, the luffing system 111 drives the luffing trolley 112 closer to the tower cap 113. Next, the luffing trolley 112 drives the building materials closer to the tower cap 113. After that, the building materials reach near the tower cap 113. Then, the cab 107 controls the hoisting system 110 to lower the building materials. Then, the building materials fall to the ground, achieving the purpose of avoiding risks;

[0068] When the wind speed value detected by the wind direction and wind speed sensor 8 is greater than the second preset value preset in the cab 107, it indicates that extreme weather is encountered. The cab 107 will further control the luffing system 111 to move the luffing trolley 112 until the luffing trolley 112 is against the end of the flip arm plate 303, and then the cab 107 controls the drive motor 501 to operate, and then the drive motor 501 drives the flip shaft 504 to rotate through the meshing action between the flip worm 502 and the vortex gear 505, and then the flip shaft 504 drives the flip shaft 504 to rotate. The driving wheel 506 rotates, and then the driving wheel 506 rotates with the load-bearing plug shaft 302 through the driving chain 507 and the driven large wheel 508, and then the load-bearing plug shaft 302 turns with the flip arm plate 303, and then the flip arm plate 303 turns with the lifting arm 108 through the plug-in effect between the lifting arm 108 and the installation slide groove 304, and then the positioning arc hole 401 and the opening slot 403 turn synchronously with the lifting arm 108, and then the positioning arc bar 402 is pulled out from the positioning arc hole 401 and the opening slot 403, and at this time The boom 108 is tilted, and the luffing trolley 112 fixes the boom 108 through the luffing system 111. Then the cab 107 controls the luffing trolley 112 to slowly move toward the end of the boom 108 through the luffing system 111. Then the boom 108 moves slowly downward relative to the flip arm plate 303 inside the mounting chute 304. Then the boom 108 presses on the chamfered slope 709. Then the chamfered slope 709 pushes the extension protrusion 708 into the displacement chute 704. Then the boom 108 passes over the chamfered slope 709. 9. Then, the guide slide plate 707 moves outward with the extension protrusion 708 under the action of the elastic force of the preload spring 706, and then the extension protrusion 708 is stuck on the boom 108. At this time, the boom 108 is in a vertical state. Then, the boom 108 slowly moves vertically downward until the luffing trolley 112 reaches the end of the boom 108, and the luffing system 111 stops. During this process, the cab 107 controls the lifting system 110 to prevent the building materials from being lifted. The boom 108 is now folded and stowed to cope with extreme weather.

[0069] After extreme weather, the driver enters the cab 107 and issues an unfolding command to it. Then, the cab 107 controls the luffing trolley 112 to move away from the end of the boom 108 through the luffing system 111. Next, the luffing system 111 pulls the boom 108 to move upward. At the same time, the cab 107 controls the hoisting system 110 to operate to wind up the steel wire rope. After that, the cab 107 controls the electromagnetic generator 705 to generate a magnetic suction force on the strong magnetic patch 710. Then, the strong magnetic patch 710 drives the guiding slide plate 707 and the extending convex block 708 to move into the displacement chute 704. After that, the extending convex block 708 releases the boom 108. Then, the cab 107 controls the drive motor 501 to run in reverse. Next, the flipping arm plate 303 drives the boom 108 to flip in the reverse direction. After that, the luffing trolley 112 reaches the extreme position on the boom 108. At this time, the positioning arc hole 401 is aligned with the opening clamping groove 403. Then, the positioning arc hole 401 gradually inserts into the positioning arc hole 401 and the opening clamping groove 403 to fix the position of the boom 108 relative to the flipping arm plate 303, making it unable to move by itself. Then, the flipping arm plate 303 falls on the inner cavity bottom surface of the loading groove 203. At this time, the boom 108 is in a horizontal state. The self-locking effect between the flipping worm 502 and the worm gear 505 fixes the state of the boom 108. Thus, the unfolding action is completed. After that, the hoisting device for transporting building materials can be used normally.

[0070] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. A lifting device for transporting building materials, comprising a lifting structure (1), characterized in that: The lifting structure (1) includes an installation base (101). A tower standard section (102) is installed on the installation base (101). A jacking sleeve (103) is installed on the tower standard section (102). A lower equipment platform (104) and an upper equipment platform (105) are installed on the jacking sleeve (103). A slewing platform (106) is installed at the top of the jacking sleeve (103). A cab (107) is installed on the slewing platform (106). A loading structure (2) is installed on the slewing platform (106). A boom mounting structure (3) and a flipping structure (5) are installed on the loading structure (2). A positioning structure (4) is provided on the boom mounting structure (3). A boom (108) is installed on the boom mounting structure (3). A counterweight boom (100) is installed at the end of the boom (108). A counterweight (109) is installed on the counterweight boom (100); The counterweight boom (100) and the boom (108) are provided with a hoisting system (110). A luffing system (111) is provided on the boom (108). A luffing trolley (112) is connected to the luffing system (111). The luffing trolley (112) is movably installed on the boom (108). A tower cap (113) is installed on the boom mounting structure (3). A wind direction and wind speed sensor (8) and a direction sensor (9) are installed on the tower cap (113); The loading structure (2) includes a loading column (201). The bottom end of the loading column (201) is welded to the slewing platform (106). A loading vertical plate (202) is welded to the top end of the loading column (201). A loading groove (203) is formed on the top surface of the loading vertical plate (202). A through groove (204) is formed on the bottom surface of the inner cavity of the loading groove (203). The counterweight boom (100) and the boom (108) are arranged in the loading groove (203). The through groove (204) allows the luffing system (111) to pass through; The boom mounting structure (3) includes a load-bearing socket (301). The load-bearing socket (301) is formed on the loading vertical plate (202) and communicates with the loading groove (203). A load-bearing plug shaft (302) is movably inserted into the load-bearing socket (301). The end of the load-bearing plug shaft (302) is connected to a flipping arm plate (303). The flipping arm plate (303) is slidably inserted into the loading groove (203). The tower cap (113) is welded to the top surface of the flipping arm plate (303). An installation chute (304) is formed on the surface of the flipping arm plate (303). The boom (108) is slidably inserted into the installation chute (304); The positioning structure (4) comprises a positioning arc hole (401), the positioning arc hole (401) is provided on the flip arm plate (303), the positioning arc hole (401) is connected to the installation slide groove (304), a positioning arc bar (402) is slidably inserted inside the positioning arc hole (401), one end of the positioning arc bar (402) is welded to the bottom surface of the inner cavity of the receiving groove (203), and the positioning structure (4) also comprises an open card slot (403), the open card slot (403) is provided on the lifting arm (108), and the positioning arc bar (402) is movably inserted into the open card slot (403); The flip structure (5) comprises a driving motor (501) and a mounting vertical plate (503), wherein the driving motor (501) is bolted to the bottom surface of the mounting vertical plate (202), the output shaft of the driving motor (501) is connected to a flip worm (502), the end of the flip worm (502) is rotatably mounted with a retaining vertical plate (509), the retaining vertical plate (509) is welded to the bottom surface of the mounting vertical plate (202), and the mounting vertical plate (503) is welded to the bottom surface of the mounting vertical plate (202). On the bottom surface of the supporting vertical plate (202), a tilting shaft (504) is rotatably mounted on the mounting vertical plate (503), a vortex gear (505) is fixedly sleeved on the tilting shaft (504), a driving small wheel (506) is fixedly sleeved on the end of the tilting shaft (504), the driving small wheel (506) is connected to a driven large wheel (508) through a driving chain (507), and the driven large wheel (508) is fixedly sleeved on the outside of the load-bearing plug shaft (302).

2. The hoisting device for transporting building materials according to claim 1, wherein: The balancing arm (100) is provided with an anti-slip structure (6), the anti-slip structure (6) comprising an anti-slip shell (601), the anti-slip shell (601) being sleeved on the top of the balancing weight (109), a fixed pressing edge (602) being welded on the surface of the anti-slip shell (601), a fixing bolt (603) being provided on the fixed pressing edge (602), and the fixing bolt (603) being threadedly mounted on the balancing arm (100).

3. A hoisting device for transporting building materials according to claim 1, characterized in that: The lower equipment platform (104) is provided with a holding structure (7). The holding structure (7) includes a holding block (701). The holding block (701) is welded to the lower equipment platform (104). A holding groove (702) is formed in the holding block (701). An opening groove (703) is formed in the inner wall of the holding groove (702). A displacement sliding groove (704) is formed in the inner wall of the opening groove (703). An electromagnetic generator (705) is installed on the inner wall of the displacement sliding groove (704). A preloading spring (706) is connected to the inner wall of the displacement sliding groove (704). The other end of the preloading spring (706) is connected to a guiding sliding plate (707). The guiding sliding plate (707) is slidably inserted into the displacement sliding groove (704). An extending convex block (708) is connected to the guiding sliding plate (707). The extending convex block (708) is slidably inserted into the opening groove (703). A chamfered inclined surface (709) is formed on one end surface of the extending convex block (708). The chamfered inclined surface (709) is adapted to the boom (108). A strong magnetic patch (710) is installed on the other end surface of the extending convex block (708). The strong magnetic patch (710) is adapted to the electromagnetic generator (705).

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