Lifting device for building material transportation

Abstract

The invention provides a hoisting device for building material transportation, and relates to the technical field of building engineering machinery, the hoisting device comprises a hoisting structure, the hoisting structure comprises a mounting foundation, a tower body standard knot is mounted on the mounting foundation, a jacking sleeve frame is mounted on the tower body standard knot, and a lower equipment platform and an upper equipment platform are mounted on the jacking sleeve frame; a rotary platform is installed at the top end of the jacking sleeve frame. According to the lifting device for building material transportation, the lifting arm can be overturned from the horizontal state to the vertical state through the force arm mounting structure, overturning force can be applied to the force arm mounting structure through the overturning structure, so that the lifting arm is switched between the horizontal state and the vertical state, the lifting arm can be vertically arranged, and the effect of reducing the transverse force arm is achieved; the lifting device aims to reduce the torsion applied to a tower body standard knot by a lifting arm under the extreme weather condition, so that the lifting device for building material transportation is smaller in stress and stronger in safety protection capability under the extreme weather condition.

Description

Technical Field

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

[0002] In the field of transporting building materials, 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. 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, which may cause 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 frequently transferring and hoisting 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. Therefore, we propose a lifting device for transporting building materials to solve the above problems. Summary of the Invention

[0003] 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 stress, 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.

[0004] 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. A hoisting system is arranged on the counterweight boom and the boom. A luffing system is arranged on the boom. The luffing system is connected to a luffing trolley, and 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.

[0005] By adopting the above technical solution, 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 to block the wind and reducing the wind force on the building materials.

[0006] Further, the loading structure includes a loading column, the bottom end of the loading column is welded to the slewing platform, a loading vertical plate is welded to the top end of the loading column, a loading groove is formed on the top surface of the loading vertical plate, a through groove is formed 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 allows the luffing system to pass through.

[0007] By adopting the above technical solution, the boom can transfer the load to the standard tower section 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.

[0008] Further, the arm mounting structure includes a load-bearing socket, the load-bearing socket is formed on the loading vertical plate and communicates with the loading groove, a load-bearing plug shaft is movably inserted into the load-bearing socket, 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 to the top surface of the flipping arm plate, and an installation chute is formed on the surface of the flipping arm plate, and the boom is slidably inserted into the installation chute.

[0009] By adopting the above technical solution, 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 arm, aiming to reduce the torque exerted by the boom on the standard tower section in extreme weather conditions, so that the hoisting device for transporting building materials is less stressed in extreme weather conditions.

[0010] Further, the positioning structure includes a positioning arc hole, the positioning arc hole is formed on the flipping arm plate, the positioning arc hole communicates with the installation chute, a positioning arc bar is slidably inserted into the positioning arc hole, one end of the positioning arc bar is welded to the bottom surface of the inner cavity of the loading groove, and the positioning structure further includes an open slot, the open slot is formed on the boom, and the positioning arc bar is movably inserted into the open slot.

[0011] By adopting the above technical solution, 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 play its role normally and stably.

[0012] Further, 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.

[0013] 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.

[0014] Further, an anti-detachment structure is provided on the counterweight arm. 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 on 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 arm.

[0015] By adopting the above technical solution, the counterweight will not fall off after the boom is vertical.

[0016] Further, 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 inclined surface is formed on one end surface of the extending convex block. The chamfered inclined surface 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.

[0017] By adopting the above technical solution, the boom in the vertical state can be fixed, avoiding 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.

[0018] Compared with the prior art, the hoisting device for transporting building materials has the following beneficial effects: 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 to convert the boom between the horizontal state and the vertical state. The boom can be vertically arranged to reduce the lateral lever arm, 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 ability, 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 practicability of the lifting device for transporting building materials.

[0019] 2. The present invention enables the boom to transfer the load to the tower standard section through a loading structure when the boom has the flipping function, so that the lifting device for transporting building materials has the original structure and function 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 vertically arranged boom can move up and down. The downward movement of the boom can reduce the total height of the lifting device for transporting building materials, playing a role in reducing the vertical lever arm, aiming 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 force, making the lifting device for transporting building materials less stressed, having stronger safety protection ability, 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 practicability of the lifting device for transporting building materials.

[0020] 3. The present invention enables the counterweight not to fall off after the boom is vertical through an anti - detachment structure. The holding structure can fix the vertically arranged boom to prevent the boom from swinging under the action of force in extreme weather conditions. The flipping structure can limit the lever arm mounting structure to prevent the lever arm mounting structure from swinging by itself, and further prevent the boom from swinging 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 ability, effectively avoiding the lifting device for transporting building materials from overturning and being damaged under extreme weather conditions, having stronger safety protection ability, 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 practicability of the lifting device for transporting building materials.

[0021] 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

[0022] Figure 1 Schematic three-dimensional structure diagram of the present invention; Figure 2 For the present invention Figure 1 Schematic three-dimensional structure diagram of the loading structure in the present invention; Figure 3 For the present invention Figure 2 Schematic exploded structure diagram of the holding structure in the present invention; Figure 4 For the present invention Figure 2 Schematic exploded structure diagram of the loading structure in the present invention; Figure 5 For the present invention Figure 4 Schematic three-dimensional structure diagram of the slewing platform in the present invention; Figure 6 For the present invention Figure 4 Schematic three-dimensional structure diagram of the boom in the present invention; Figure 7 For the present invention Figure 4 Schematic three-dimensional structure diagram of the tower cap in the present invention; Figure 8 For the present invention Figure 2 Schematic three-dimensional structure diagram of the upper part in the present invention Figure 1 ; Figure 9 For the present invention Figure 2 Schematic three-dimensional structure diagram of the upper part in the present invention Figure 2 ; Figure 10 For the present invention Figure 6 Schematic three-dimensional structure diagram of the upper part in the present invention Figure 1 ; Figure 11 For the present invention Figure 6 Schematic three-dimensional structure diagram of the upper part in the present invention Figure 2 .

[0023] In the figure: 1. Lifting structure; 100. Counterweight arm; 101. Installation foundation; 102. Tower body standard section; 103. Jacking sleeve; 104. Lower equipment platform; 105. Upper equipment platform; 106. Slewing platform; 107. Cab; 108. Boom; 109. Balancing weight; 110. Lifting system; 111. Luffing system; 112. Luffing trolley; 113. Tower cap; 2. Loading structure; 201. Loading column; 202. Loading vertical plate; 203. Loading groove; 204. Through groove; 3. Boom installation structure; 301. Load-bearing socket; 302. Load-bearing plug shaft; 303. Flipping arm plate; 304. Installation chute; 4. Positioning structure; 401. Positioning circular arc hole; 402. Positioning circular arc strip; 403. Open slot; 5. Flipping structure; 501. Driving motor; 502. Flipping worm; 503. Installation vertical plate; 504. Flipping shaft body; 505. Worm gear; 506. Driving small wheel; 507. Driving chain; 508. Driven large wheel; 509. Keeping vertical plate; 6. Anti - detachment structure; 601. Anti - detachment housing; 602. Fixed pressing edge; 603. Fixed bolt; 7. Keeping structure; 701. Keeping block; 702. Keeping groove; 703. Opening groove; 704. Displacement sliding groove; 705. Electromagnetic generator; 706. Pre - pressing spring; 707. Guide sliding plate; 708. Extension bump; 709. Chamfered slope; 710. Strong magnetic patch; 8. Wind direction and wind speed sensor; 9. Direction sensor. Specific implementation manners

[0024] 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0025] 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. A cab 107 is installed on the slewing platform 106.

[0026] Inside the cab 107, there are first and second preset values, and all the required information is preset inside the cab 107.

[0027] The slewing platform 106 is equipped with a loading structure 2. The loading structure 2 is equipped with a boom mounting structure 3 and a tipping structure 5. The boom mounting structure 3 is provided with a positioning structure 4. The boom mounting structure 3 is equipped with a lifting boom 108. The end of the lifting boom 108 is equipped with a counterweight boom 100. The counterweight boom 100 is equipped with a counterweight 109. The counterweight boom 100 and the lifting boom 108 are provided with a lifting system 110. The lifting system 110 is provided with steel wire ropes. The lifting boom 108 is provided with a luffing system 111. The luffing system 111 is connected with a luffing trolley 112. The luffing trolley 112 is movably installed on the lifting boom 108. The boom mounting structure 3 is equipped with a tower cap 113. A wind direction and speed sensor 8 is installed on the tower cap 113.

[0028] 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.

[0029] A direction sensor 9 is installed on the tower cap 113.

[0030] 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.

[0031] Through the cooperation of the slewing platform 106, the cab 107, the wind direction and speed sensor 8, and the direction sensor 9, the lifting 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 force and reducing the wind force on the building materials.

[0032] Please refer specifically 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. A loading groove 203 is opened on the top surface of the loading plate 202. A through groove 204 is opened on the inner cavity bottom surface of the loading groove 203. 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.

[0033] Through the loading structure 2, the lifting boom 108 can transfer the load to the tower standard section 102 when it has the tipping function, enabling the lifting device for transporting building materials to have the original structure and original functions of a tower crane and ensuring that the lifting device for transporting building materials can normally perform the functions of a tower crane.

[0034] Please refer specifically toFigure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 , the force arm mounting structure 3 includes a load-bearing socket 301 which is opened on the load-bearing vertical plate 202 and communicated with the load-bearing groove 203. A load-bearing plug shaft 302 is movably inserted into the load-bearing socket 301. One end of the load-bearing plug shaft 302 is connected with a turning arm plate 303. The turning arm plate 303 is slidably inserted into the load-bearing groove 203. The tower cap 113 is welded on the top surface of the turning arm plate 303. An installation chute 304 is opened on the surface of the turning arm plate 303. The lifting arm 108 is slidably inserted into the installation chute 304.

[0035] The lifting arm 108 is fixed by the insertion between the lifting arm 108 and the installation chute 304, so that the lifting arm 108 can move relative to the turning arm plate 303. Through the insertion between the load-bearing plug shaft 302 and the load-bearing socket 301, the lifting arm 108 can be turned from the horizontal state to the vertical state.

[0036] Please refer specifically to Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 , the positioning structure 4 includes a positioning arc hole 401 which is opened on the turning arm plate 303 and 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 load-bearing groove 203. The positioning structure 4 further includes an open slot 403 which is opened on the lifting arm 108. The positioning arc bar 402 is movably inserted into the open slot 403.

[0037] The position of the lifting arm 108 relative to the turning arm plate 303 is fixed by the insertion between the positioning arc bar 402 and the positioning arc hole 401 and the open slot 403, so that it cannot move by itself, ensuring that the lifting arm 108 can play its role normally and stably.

[0038] Please refer specifically 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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. Moreover, the tower standard section 102 and the boom 108 can be fixed together, with stronger wind resistance.

[0044] 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 simultaneously 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. Then, 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 close to the tower cap 113. Then, the luffing trolley 112 drives the building materials close 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; When the wind speed value detected by the wind direction and speed sensor 8 is greater than the second preset value preset inside 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 abuts against the end of the tipping arm plate 303. Then the cab 107 controls the driving motor 501 to operate. Next, the driving motor 501 drives the rotation shaft body 504 to rotate through the meshing action between the tipping worm 502 and the worm gear 505. After that, the rotation shaft body 504 drives the driving small wheel 506 to rotate. Then the driving small wheel 506 drives the load-bearing plug shaft 302 to rotate through the driving chain 507 and the driven large wheel 508. Next, the load-bearing plug shaft 302 drives the tipping arm plate 303 to tip. After that, the tipping arm plate 303 drives the boom 108 to tip through the plugging action between the boom 108 and the installation chute 304. Then the positioning arc hole 401 and the opening chute 403 tip synchronously with the boom 108. Next, the positioning arc strip 402 is pulled out from the positioning arc hole 401 and the opening chute 403. At this time, the boom 108 is inclined, and the luffing trolley 112 fixes the boom 108 through the luffing system 111. After that, the cab 107 controls the luffing trolley 112 to slowly move towards the end of the boom 108 through the luffing system 111. Then the boom 108 slowly moves obliquely downward relative to the tipping arm plate 303 inside the installation chute 304. Next, the boom 108 presses on the chamfered inclined surface 709. After that, the chamfered inclined surface 709 pushes the extending convex block 708 into the displacement chute 704. Then the boom 108 crosses the chamfered inclined surface 709. Next, the guiding slide plate 707 drives the extending convex block 708 to move outward under the action of the elastic force of the preloading spring 706. After that, the extending convex block 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 hoisting system 110 to act so that the building materials are not lifted, and the boom 108 is folded and retracted at this point to cope with extreme weather; 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 act to wind up the 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 extension bump 708 to move into the displacement chute 704. After that, the extension bump 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 slot 403. Then, the positioning arc hole 401 gradually inserts into the positioning arc hole 401 and the opening slot 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 receiving 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.

[0045] 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, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims 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) comprises an installation base (101), a tower body standard section (102) is installed on the installation base (101), a lifting frame (103) is installed on the tower body standard section (102), a lower equipment platform (104) and an upper equipment platform (105) are installed on the lifting frame (103), a rotating platform (106) is installed at the top of the lifting frame (103), a cab (107) is installed on the rotating platform (106), a supporting structure (2) is installed on the rotating platform (106), a force arm installation structure (3) and a tilting structure (5) are installed on the supporting structure (2), a positioning structure (4) is provided on the force arm installation structure (3), a lifting arm (108) is installed on the force arm installation structure (3), a balancing arm (100) is installed at the end of the lifting arm (108), and a balancing weight (109) is installed on the balancing arm (100); A lifting system (110) is arranged on the balancing arm (100) and the lifting arm (108); a luffing system (111) is arranged on the lifting arm (108); a luffing trolley (112) is connected to the luffing system (111); the luffing trolley (112) is movably mounted on the lifting arm (108); a tower cap (113) is mounted on the arm mounting structure (3); and a wind direction and speed sensor (8) and a direction sensor (9) are mounted on the tower cap (113).

2. A lifting device for transporting building materials according to claim 1, characterized in that: The supporting structure (2) comprises a supporting column (201), the bottom end of the supporting column (201) is welded to the rotating platform (106), the top end of the supporting column (201) is welded to a supporting plate (202), the top surface of the supporting plate (202) is provided with a supporting groove (203), the bottom surface of the inner cavity of the supporting groove (203) is provided with a through groove (204), the balance arm (100) and the lifting arm (108) are arranged in the supporting groove (203), and the through groove (204) can allow the luffing system (111) to pass through.

3. A lifting device for transporting building materials according to claim 2, characterized in that: The arm mounting structure (3) comprises a load-bearing socket (301), the load-bearing socket (301) being provided on the supporting vertical plate (202) and communicating with the supporting groove (203), a load-bearing plug shaft (302) being movably plugged into the load-bearing socket (301), an end of the load-bearing plug shaft (302) being connected to a flip arm plate (303), the flip arm plate (303) being slidably plugged into the supporting groove (203), a tower cap (113) being welded to the top surface of the flip arm plate (303), a mounting slide groove (304) being provided on the surface of the flip arm plate (303), and a lifting arm (108) being slidably plugged into the mounting slide groove (304).

4. A lifting device for transporting building materials according to claim 3, characterized in that: 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) further 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).

5. A lifting device for transporting building materials according to claim 3, characterized in that: 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).

6. A lifting device for transporting building materials according to claim 1, characterized in that: 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).

7. A lifting 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) comprising a holding block (701), the holding block (701) being welded to the lower equipment platform (104), the holding block (701) being provided with a holding groove (702), the inner wall of the holding groove (702) being provided with an opening groove (703), the inner wall of the opening groove (703) being provided with a displacement slide groove (704), the inner wall of the displacement slide groove (704) being provided with an electromagnetic generator (705), the inner wall of the displacement slide groove (704) being connected with a preload spring (706), the preload spring (706) The other end of the guide plate (706) is connected to a guide slide (707), the guide slide (707) is slidably inserted in the displacement slide groove (704), the guide slide (707) is connected to an extension protrusion (708), the extension protrusion (708) is slidably inserted in the opening groove (703), a chamfered inclined surface (709) is provided on one end surface of the extension protrusion (708), the chamfered inclined surface (709) is matched with the lifting arm (108), and a strong magnetic patch (710) is installed on the other end surface of the extension protrusion (708), and the strong magnetic patch (710) is matched with the electromagnetic generator (705).

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