A mobile unloading platform for construction work

Abstract

This invention discloses a mobile unloading platform for construction, relating to the technical field of unloading platforms. It includes two guide rails, with an unloading platform fixedly connected to each rail. An inclined brace connects the guide rails and the unloading platform. A supporting truss connects the bottom of the unloading platform to the guide rails. A partition plate is movably connected inside the unloading platform, uniformly dividing the internal load-bearing space into multiple compartments. When stacking materials, the materials are sequentially and evenly stacked into these compartments. This invention uses a partition plate to divide the load-bearing space within the adjustable compartment into multiple compartments, then stacks materials into each compartment, with the same amount of material stacked in each compartment each time. This ensures that the downward load force generated by the stacked material in each compartment is uniformly distributed, initially solving the problem of uneven material stacking causing torsional torque, leading to guide rail jamming, derailment, and inability to operate normally.

Description

Technical Field

[0001] This invention relates to the field of unloading platform technology, and more specifically to a mobile unloading platform for construction. Background Technology

[0002] With the rapid development of industrialized construction and high-rise and super high-rise building projects in my country, the efficiency and safety management of vertical material transfer during construction have become core factors determining construction progress and on-site safety management. As a key transfer facility connecting floor work surfaces with vertical transportation equipment such as tower cranes, unloading platforms are indispensable core equipment on construction sites. Among them, mobile (attached lifting) unloading platforms, with their significant advantages such as being able to vertically climb synchronously with the main construction progress, eliminating the need for repeated disassembly and transfer, minimizing damage to the main building structure, and reducing tower crane occupancy, are gradually replacing traditional cantilevered fixed unloading platforms and becoming the mainstream choice for high-rise and super high-rise building construction. Their safety performance directly affects the overall safety management effect of the construction site.

[0003] Throughout the entire operation of the unloading platform, there are a large number of materials that need to be stacked, placed, and transferred, including boxed tiles, bagged cement, putty powder, steel pipes, and many other categories.

[0004] In actual material handling, the following problems exist: For granular or powdery materials such as bagged cement and putty powder, the lower layers of packaging bags are compressed and deformed after multiple layers are stacked. The materials inside the bags will flow and shift irregularly. Furthermore, mutual compression during stacking or impact loads generated during lifting and lowering cause interlayer slippage and overall misalignment between stacked materials. For example, bundles of cylindrical materials are prone to misalignment, resulting in the load of the stacked materials not being evenly distributed to the main beam, creating an eccentric load. This generates continuous overturning and torsional moments on the platform's main load-bearing truss, causing torsional deformation and uneven settlement of the main load-bearing truss. This, in turn, leads to problems such as excessive verticality, parallelism deviation, and lateral bending deformation of the double-sided vertical guide rails rigidly connected to the main load-bearing truss. Deviations in the guide rail's shape and position directly disrupt the precise fit between the guide rail and the guide wheel assembly, resulting in one side of the guide wheel being jammed and the other side being dislodged and failing. In severe cases, this can cause the platform to completely jam during climbing, the guide rail to derail, and normal operation to be impossible. Therefore, this application proposes a mobile unloading platform for construction work to solve the above problems. Summary of the Invention

[0005] This invention provides a mobile unloading platform for construction work to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A mobile construction unloading platform includes two guide rails, on which an unloading platform is fixedly connected. An inclined brace connects the guide rails and the unloading platform. A supporting truss connects the bottom of the unloading platform to the guide rails. A partition plate is movably connected inside the unloading platform, which evenly divides the internal bearing space of the unloading platform into multiple compartments. When stacking materials, the materials are evenly stacked into the multiple compartments in sequence.

[0007] The bottom of the unloading platform's inner cavity is equipped with multiple monitoring devices, and the bottom of the unloading platform has an adjustment cavity with a leveling mechanism inside.

[0008] A further improvement of the technical solution of the present invention is that: multiple movable baffles are movably connected inside the partition cavity, which uniformly divides the partition cavity into multiple isolation cavities. Each isolation cavity is adapted to the size of the stacked materials, and the materials are stacked into the multiple isolation cavities in sequence.

[0009] When the amount of material piled in each isolation chamber is the same, the load pressure generated at the bottom of the unloading platform at each isolation chamber is the same.

[0010] A further improvement of the technical solution of the present invention is that: the inner sidewall and the partition plate of the unloading platform are fixedly connected with limit sliders.

[0011] Limiting grooves are provided on both sides of the movable baffle, and the limiting grooves are movably connected to the limiting slider.

[0012] A further improvement of the technical solution of the present invention is that: a fixing groove is provided on the movable baffle, and a fixing bolt is movably connected to the inner wall of the fixing groove, the fixing bolt passing through the fixing groove and abutting against the upper surface of the limiting slider.

[0013] A further improvement of the technical solution of the present invention is that: the leveling mechanism includes an adjusting tube body movably connected to the bottom of the adjusting cavity, the middle part of the adjusting tube body is movably connected to the inner wall of the adjusting cavity through a shaft, and gravity balls are movably connected to both ends of the adjusting tube body.

[0014] In the initial stage, the regulating tube is in a horizontal state, and the two gravity balls are at the same height.

[0015] A further improvement of the technical solution of the present invention is that: electromagnets are fixedly connected to the bottom of the inner cavity of the adjustment chamber at both ends of the adjustment tube, and the adjustment tube is made of a magnetically pleasing material.

[0016] When one of the electromagnets is energized, it can generate an attractive force on one end of the regulating tube, causing the regulating tube to rotate along the axis and tilt, so that one of the gravity balls will slide to the other end.

[0017] A further improvement of the technical solution of the present invention is that: both ends of the regulating tube are fixedly connected with a reset spring, and one end of the reset spring is fixedly connected to the top of the inner cavity of the regulating chamber.

[0018] A further improvement of the technical solution of the present invention is that: the bottom of the inner cavity of the unloading platform is provided with multiple slots, and each slot is movably connected with a plug-in positioning rod.

[0019] The partition plate has multiple positioning slots, and the insertion positioning rod is movably connected to the positioning slot. The top of the insertion positioning rod is threaded with a fixing nut.

[0020] A further improvement of the technical solution of the present invention is that: a spring is fixedly connected to the bottom of the inner cavity of the slot, and a sealing plate is fixedly connected to one end of the spring.

[0021] When the insertion positioning rod is not connected to the slot, the sealing plate is flush with the bottom of the inner cavity of the unloading platform.

[0022] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: 1. This invention provides a mobile unloading platform for construction, which can divide the load-bearing space in the adjustment cavity into multiple partitioned cavities through a partition plate. Then, materials are stacked into multiple partitioned cavities respectively, and the amount of material stacked in each partitioned cavity is the same each time. At this time, it can be assumed that the downward load force generated by the stacked materials in each partitioned cavity is evenly distributed, which initially solves the problem that the guide rail will jam or derail due to the torsional torque generated by uneven material stacking, thus preventing normal operation.

[0023] 2. This invention provides a mobile construction unloading platform. After materials are stacked, the weight of materials in each compartment is monitored by a monitoring device. Then, the weight of materials on both sides of the center line of the unloading platform is compared to obtain the weight difference. The weight of materials on both sides can then be adjusted by a leveling mechanism, thereby redistributing the vertical force generated at the bottom of the unloading platform. This results in a more uniform load force on the bottom plate of the unloading platform, offsetting the torsional moment caused by uneven material stacking. The unloading platform is only subjected to a vertically downward force, further avoiding the problem of uneven load and torsional moment, which could lead to uneven stress on the bottom plate of the unloading platform and create safety hazards.

[0024] 3. This invention provides a mobile construction unloading platform. When the monitoring device detects that the pressure distribution of the transported materials stacked on both sides of the unloading platform is uneven with the center line as the dividing line, the adjusting pipe rotates along the axis, so that the adjusting pipe is tilted at a certain angle. At this time, the gravity ball at the highest point inside the adjusting pipe will slide to the other side. At this time, the vertical force on both sides of the unloading platform is redistributed to keep the pressure as consistent as possible. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another angle; Figure 3 This is a schematic diagram of the structure of the insertion positioning rod of the present invention being inserted into the slot; Figure 4 This is a schematic diagram of the structure after the partition plate and the plug-in positioning rod of the present invention are connected; Figure 5 This is a schematic diagram of the structure of the movable baffle after installation of the present invention; Figure 6 This is an exploded structural diagram of the movable baffle and fixing bolts of the present invention; Figure 7 This is a cross-sectional structural diagram of the leveling mechanism of the present invention; Figure 8 This is a schematic cross-sectional view of the adjustable tube body when tilted according to the present invention. Figure 9 For the present invention Figure 7 Enlarged structural diagram at point A; Figure 10 This is a schematic diagram of the guide seat of the present invention.

[0026] In the diagram: 1. Guide rail; 2. Inclined brace; 3. Unloading platform; 4. Support truss; 5. Adjustment cavity; 6. Insertion positioning rod; 7. Slot; 8. Spring; 9. Sealing plate; 10. Divider plate; 11. Fixing nut; 12. Limiting slider; 13. Moving baffle; 14. Limiting groove; 15. Fixing groove; 16. Fixing bolt; 17. Monitoring device; 18. Adjusting pipe; 19. Gravity ball; 20. Return spring; 21. Electromagnet; 22. Transfer material; 23. Guide seat. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments: Example

[0028] like Figures 1-10As shown, this invention provides a mobile construction unloading platform, including two guide rails 1 (existing technology), multiple guide seats 23 movably connected to the guide rails 1, the guide seats 23 being installed on the wall, and anti-fall devices (existing technology) installed at the guide seats 23 to prevent falls. An unloading platform 3 (existing technology) is fixedly connected to the two guide rails 1, comprising a platform base plate, platform side plates, and platform tail plate. A diagonal brace 2 connects the guide rails 1 and the unloading platform 3. A supporting truss 4 connects the bottom of the unloading platform 3 to the guide rails 1 (existing technology) to ensure the stability of the unloading platform 3. A partition plate 10 is movably connected inside the unloading platform 3, uniformly dividing the internal bearing space of the unloading platform 3 into multiple compartments. When stacking materials, the materials are sequentially and evenly stacked into the multiple compartments to maintain a consistent amount and stacking state in each compartment.

[0029] Multiple monitoring devices 17 are installed at the bottom of the inner cavity of the unloading platform 3. The monitoring devices 17 are existing technologies and can use pressure sensors to monitor the pressure of the materials stacked at each point in the partition cavity. An adjustment cavity 5 is opened at the bottom of the unloading platform 3, and a leveling mechanism is installed inside the adjustment cavity 5.

[0030] It also includes a PLC control system and other related equipment, which are electrically connected to each of the electrical control devices in this application to ensure the real-time performance and accuracy of control commands and to meet the continuous operation requirements of each device in this application.

[0031] Firstly, when the partition plate 10 is not installed, materials with larger volumes can be directly transferred via the unloading platform 3. When it is necessary to transfer materials with smaller volumes that need to be stacked, the partition plate 10 can divide the bearing space in the adjusting cavity 5 into multiple partition cavities. Then, the materials are stacked into multiple partition cavities, and the amount of material stacked in each partition cavity is the same each time. At this time, it can be considered that the downward load force generated by the stacked materials in each partition cavity is evenly distributed, which initially solves the problem of guide rail jamming and derailment caused by uneven material stacking and torsional torque, resulting in abnormal operation. After the materials are stacked, the monitoring device 17 monitors each partition cavity. The weight of the material inside the cavity is monitored. Then, using the center line of the unloading platform 3 as a dividing line, the weight of the material on both sides of the dividing line is compared to obtain the weight difference between the two sides. Then, the weight of the material on both sides can be adjusted by the leveling mechanism, so that the vertical force generated at the bottom of the unloading platform 3 is redistributed, so that the bottom plate of the unloading platform 3 is subjected to a more uniform load force, which counteracts the torsional moment caused by uneven material stacking. This ensures that the unloading platform 3 is only subjected to a vertically downward force, further avoiding the problem of uneven load and torsional moment, which would cause uneven stress on the bottom plate of the unloading platform 3 and create safety hazards.

[0032] Furthermore, multiple movable baffles 13 are movably connected inside the partition cavity. The size of the movable baffles 13 is adapted to the size of the partition cavity, which uniformly divides the partition cavity into multiple isolation cavities. Transfer materials 22 are stacked inside the isolation cavities. The size of each isolation cavity is adapted to the size of the transfer materials 22, and the transfer materials 22 are stacked into the multiple isolation cavities in sequence.

[0033] When the amount of transfer material 22 piled in each isolation chamber is the same, the load pressure generated by each isolation chamber on the bottom of the unloading platform 3 is the same.

[0034] First, based on the dimensions of the material 22 being transferred, multiple movable baffles 13 are installed in the partition cavity. In conjunction with the partition plate 10, the bearing space inside the adjustment cavity 5 is evenly divided into multiple isolation cavities that are adapted to the material dimensions. Then, the material is stacked into the multiple isolation cavities in sequence. When the size of the isolation cavity is adapted to the smallest unit material size, and the amount of material stacked in each isolation cavity is the same, the downward load force generated by each isolation cavity can be considered to be the same. That is, the unloading platform 3 is subjected to a uniform downward load, and there will be no torsional force due to uneven force, thus ensuring the stable use of the unloading platform 3.

[0035] Furthermore, because the dimensions of each isolation chamber are adapted to the transported material 22, it avoids the mutual compression caused by the large-scale stacking of the transported material 22 or the impact load generated during the lifting process, which could lead to interlayer slippage and overall misalignment between the transported materials 22. For example, bundled cylindrical materials are prone to misalignment, causing the load of the transported material 22 to be unevenly transmitted to the main beam, forming an off-center load force. This will generate a continuous overturning moment and torsional moment on the main load-bearing truss of the platform, causing torsional deformation and uneven settlement of the main load-bearing truss. This, in turn, will cause problems such as excessive verticality, parallelism deviation, and lateral bending deformation of the double-sided vertical guide rails that are rigidly connected to the main load-bearing truss. The shape and position deviation of the guide rail will directly damage the precision fit between the guide rail and the guide wheel assembly, resulting in the situation where one side of the guide wheel is crushed and stuck, and the other side of the guide wheel is dislodged and fails. In severe cases, it can cause the platform to completely jam during the climbing process, the guide rail to derail, and the platform to be unable to operate normally.

[0036] Furthermore, limit sliders 12 are fixedly connected to the inner wall of the unloading platform 3 and the partition plate 10, and scale lines are provided on the limit sliders 12.

[0037] Limiting grooves 14 are provided on both sides of the movable baffle 13. The limiting grooves 14 are movably connected to the limiting slider 12. A fixing groove 15 is provided on the movable baffle 13. A fixing bolt 16 is movably connected to the inner wall of the fixing groove 15. The fixing bolt 16 passes through the fixing groove 15 and abuts against the upper surface of the limiting slider 12.

[0038] First, based on the actual dimensions of the transferred material 22, appropriate partition plates 10 and movable baffles 13 can be selectively installed to form multiple evenly distributed isolation cavities. When loading materials onto the unloading platform 3, the following principles should be followed: the amount of transferred material 22 is the same each time, and the transferred material 22 is evenly stacked into the spaces of multiple isolation cavities, and the stacking state of the transferred material 22 in each isolation cavity should be kept as similar as possible. At this time, it can be approximately considered that the bottom of the unloading platform 3 is subjected to a uniform vertical load force, and there is no torsional force. When the stacking state of the transferred material 22 changes, resulting in uneven force on the unloading platform 3, the vertical force generated by the bottom plate of the unloading platform 3 can be redistributed through the action of the leveling mechanism, so that the vertical force is close to uniform, thereby avoiding the occurrence of torsional torque, ensuring the structural stability and safety of the unloading platform 3 during use, and reducing the problem of guide rail jamming or derailment caused by torsional torque, which prevents normal operation.

[0039] The limiting slider 12 is equipped with scale lines to facilitate real-time adjustment of the spacing between adjacent moving baffles 13 according to the size of the transported material 22. Before the transported material 22 is transported to the unloading platform 3, the position of one of the moving baffles 13 is first fixed according to the size of the transported material 22 and the size of the unloading platform 3, in conjunction with the scale lines on the limiting slider 12. Then, the position of the adjacent moving baffle 13 is moved to a position larger than the size of the transported material 22. Then, the transported material 22 is stacked into the isolation cavity in sequence. Next, the other moving baffle 13 is moved toward the fixed moving baffle 13 until it abuts against the transported material 22, and its position is locked by the fixing bolt 16. At this time, a certain clamping effect can be formed between the two adjacent moving baffles 13, so that the transported material 22 is stacked in the isolation cavity and subjected to clamping force, thus maintaining a certain stability during the transport process.

[0040] Furthermore, the leveling mechanism includes an adjusting tube 18 movably connected to the bottom of the inner cavity of the adjusting cavity 5. The middle part of the adjusting tube 18 is movably connected to the inner wall of the adjusting cavity 5 via a shaft, and gravity balls 19 are movably connected to both ends of the inner cavity of the adjusting tube 18.

[0041] In the initial stage, the regulating tube 18 is in a horizontal state, and the two gravity balls 19 are at the same height.

[0042] When the monitoring device 17 detects that the pressure distribution of the transfer materials 22 stacked on both sides of the unloading platform 3 is uneven with the center line as the dividing line, the regulating pipe 18 rotates along the axis, so that the regulating pipe 18 is tilted at a certain degree. At this time, the gravity ball 19 inside the regulating pipe 18, which is at the highest point, will slide to the other side. At this time, the vertical force on both sides of the unloading platform 3 is redistributed to keep the pressure as consistent as possible.

[0043] There are multiple leveling mechanisms, which are evenly distributed and can be used to level pressure differences at different locations.

[0044] Furthermore, electromagnets 21 are fixedly connected to the bottom of the inner cavity of the regulating chamber 5 at both ends of the regulating tube 18, and the two ends of the regulating tube 18 are made of magnetically attractive material.

[0045] When one of the electromagnets 21 is energized, it can generate an attractive force on one end of the regulating tube 18, causing the regulating tube 18 to rotate along the axis and tilt, so that one of the gravity balls 19 will slide to the other end.

[0046] Electromagnet 21 is existing technology. In the initial stage, electromagnet 21 is de-energized, and the regulating tube 18 and its two gravity balls 19 are horizontally distributed. Then, when a pressure difference occurs on both sides of the unloading platform 3, one electromagnet 21 is energized, generating electromagnetic properties, while the other electromagnet 21 is de-energized. Since the position of electromagnet 21 is fixed, it will attract the regulating tube 18 to rotate along the axis by a certain angle, causing the gravity balls 19 inside the regulating tube 18 to slide to the lower side, thus redistributing the load pressure on the unloading platform 3. This allows the leveling device to adjust the downward force generated by the unloading platform 3 when the transported material 22 stacked on the unloading platform 3 is unevenly loaded due to various reasons, avoiding the occurrence of torsional torque and ensuring the operational stability of the equipment.

[0047] Furthermore, both ends of the adjusting tube 18 are fixedly connected with a return spring 20, and one end of the return spring 20 is fixedly connected to the top of the inner cavity of the adjusting cavity 5.

[0048] When the electromagnet 21 is energized, it attracts one end of the regulating tube 18 downwards, which stretches the return spring 20 on one side and compresses the return spring 20 on the other side. When the material 22 is transferred, the energized electromagnet 21 is de-energized, the magnetic attraction disappears, and the regulating tube 18 returns to its original position under the action of the return spring 20, which is convenient for subsequent use.

[0049] There is friction between the inner wall of the adjusting tube 18 and the gravity ball 19, and the return spring 20 has a pulling force. This results in different tilt angles of the adjusting tube 18 when the magnetic attraction generated by the electromagnet 21 on one side is different. Consequently, the gravity ball 19 slides to different positions within the adjusting tube 18. Furthermore, since the vertical component of the force generated by the two gravity balls 19 after the adjusting tube 18 is tilted is related to the tilt angle of the adjusting tube 18, the tilt angle of the adjusting tube 18 can be adjusted by adjusting the strength of the electromagnetic attraction generated by the electromagnet 21 according to actual needs. This allows the same adjusting tube 18 to produce different forces for leveling, thereby making the adjustment of the vertical load more precise.

[0050] Furthermore, the bottom of the inner cavity of the unloading platform 3 is provided with multiple slots 7, and each slot 7 is movably connected with a plug-in positioning rod 6. The partition plate 10 is provided with multiple positioning grooves. The plug-in positioning rod 6 is movably connected to the positioning groove. The top of the plug-in positioning rod 6 is threaded with a fixing nut 11. The bottom of the inner cavity of the slot 7 is fixedly connected with a spring 8. One end of the spring 8 is fixedly connected with a sealing plate 9. When the plug-in positioning rod 6 is not connected to the slot 7, the sealing plate 9 is flush with the bottom of the inner cavity of the unloading platform 3 to prevent particles and other debris from entering the slot 7 and affecting the connection between the plug-in positioning rod 6 and the unloading platform 3.

[0051] When the partition plate 10 needs to be installed on the unloading platform 3, first connect multiple plug-in positioning rods 6 to multiple slots 7 respectively, then connect the positioning groove opened on the partition plate 10 to multiple plug-in positioning rods 6, and then connect the fixing nut 11 to the plug-in positioning rods 6 to lock the position of the partition plate 10, so as to facilitate the uniform stacking of the subsequent transfer materials 22.

Claims

1. A mobile construction unloading platform, comprising two guide rails (1), an unloading platform (3) fixedly connected to the two guide rails (1), a diagonal brace (2) connecting the guide rails (1) and the unloading platform (3), and a supporting truss (4) connecting the bottom of the unloading platform (3) to the guide rails (1), characterized in that: The unloading platform (3) is internally connected to a partition plate (10). The partition plate (10) evenly divides the internal bearing space of the unloading platform (3) into multiple partition cavities. When stacking materials, the materials are stacked evenly into multiple partition cavities in sequence. Multiple monitoring devices (17) are installed at the bottom of the inner cavity of the unloading platform (3). An adjustment cavity (5) is opened at the bottom of the unloading platform (3), and a leveling mechanism is provided inside the adjustment cavity (5).

2. The mobile construction unloading platform according to claim 1, characterized in that: Multiple movable baffles (13) are movably connected inside the partition cavity, which evenly divides the partition cavity into multiple isolation cavities. Each isolation cavity is adapted to the size of the stacked material, and the material is stacked into the multiple isolation cavities in sequence. When the amount of material piled in each isolation chamber is the same, the load pressure generated at the bottom of the unloading platform (3) at each isolation chamber is the same.

3. A mobile construction unloading platform according to claim 2, characterized in that: Limiting sliders (12) are fixedly connected to the inner side wall of the unloading platform (3) and the partition plate (10). Limiting grooves (14) are provided on both sides of the movable baffle (13), and the limiting grooves (14) are movably connected to the limiting slider (12).

4. A mobile construction unloading platform according to claim 2, characterized in that: The movable baffle (13) has a fixed groove (15), and a fixing bolt (16) is movably connected to the inner wall of the fixed groove (15). The fixing bolt (16) passes through the fixed groove (15) and abuts against the upper surface of the limiting slider (12).

5. A mobile construction unloading platform according to claim 1, characterized in that: The leveling mechanism includes an adjusting tube (18) movably connected to the bottom of the inner cavity of the adjusting cavity (5). The middle part of the adjusting tube (18) is movably connected to the inner wall of the adjusting cavity (5) via a shaft. Gravity balls (19) are movably connected to both ends of the inner cavity of the adjusting tube (18). In the initial stage, the regulating tube (18) is in a horizontal state, and the two gravity balls (19) are at the same height.

6. A mobile construction unloading platform according to claim 5, characterized in that: The bottom of the inner cavity of the regulating cavity (5) is fixedly connected to electromagnets (21) at both ends of the regulating tube (18), and the regulating tube (18) is made of magnetically absorbable material. When one of the electromagnets (21) is energized, it can attract the force of one end of the regulating tube (18), causing the regulating tube (18) to rotate along the axis and tilt, and one of the gravity balls (19) will slide to the other end.

7. A mobile construction unloading platform according to claim 6, characterized in that: Both ends of the regulating tube (18) are fixedly connected with a reset spring (20), and one end of the reset spring (20) is fixedly connected to the top of the inner cavity of the regulating cavity (5).

8. A mobile construction unloading platform according to claim 1, characterized in that: The unloading platform (3) has multiple slots (7) at the bottom of its inner cavity, and each slot (7) is movably connected to a plug-in positioning rod (6). The partition plate (10) has multiple positioning slots, and the insertion positioning rod (6) is movably connected to the positioning slot. The top of the insertion positioning rod (6) is threaded with a fixing nut (11).

9. A mobile construction unloading platform according to claim 8, characterized in that: A spring (8) is fixedly connected to the bottom of the inner cavity of the slot (7), and a sealing plate (9) is fixedly connected to one end of the spring (8). When the plug-in positioning rod (6) is not connected to the slot (7), the sealing plate (9) is flush with the bottom of the inner cavity of the unloading platform (3).

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