A rapid handling tool for aerated blocks

Abstract

The present application relates to the technical field of building construction auxiliary equipment, and particularly discloses a quick hoisting tool for aerated blocks, which solves the problems of poor operation convenience and complex equipment structure in the prior art, and comprises a base plate and a sleeve frame, wherein a supporting mechanism for supporting the base plate is arranged on the sleeve frame; the supporting mechanism comprises two parallel supporting rods, a transversely arranged sliding groove is arranged on a group of opposite surfaces of the sleeve frame, the two ends of the supporting rods are in sliding fit with the sliding groove, a driving mechanism is arranged on the sleeve frame, and the driving mechanism drives the two supporting rods to move close to or away from each other in the sliding groove. The present application has the advantages of simplified structure and reduced cost: the complicated transmission components such as motors and gear racks in the prior art are abandoned, a pure mechanical driving structure is adopted, the number of parts is reduced, the manufacturing cost and failure probability are reduced, and the on-site maintenance and repair are facilitated.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for building construction, and in particular to a rapid hoisting tool for aerated concrete blocks. Background Technology

[0002] In the construction process, autoclaved aerated concrete (AAC) blocks are a key component of building projects, and their handling methods are of great concern. Currently, manual handling and forklift handling are commonly used for transporting AAC blocks. For example, when handling AAC blocks manually, the weight of the blocks themselves and frequent contact during transport can lead to breakage and damage, significantly increasing material waste costs. Furthermore, manual handling is inefficient and seriously affects construction progress. While using forklifts improves handling efficiency to some extent, forklifts struggle to ensure the stability of blocks lifted to heights, easily causing swaying and posing significant safety hazards.

[0003] Chinese patent CN112249857A discloses a rapid hoisting device and method for aerated concrete blocks. The device comprises multiple components, including a drive motor, a transmission shaft, gears, a rack, and a fixing rod assembly. During hoisting, the drive motor rotates, causing the transmission shaft to turn, which in turn causes the gears and rack to interact, controlling the movement of the fixing rod assembly to fix and release the pallet, ultimately completing the hoisting operation of the aerated concrete blocks.

[0004] However, this existing technical solution has revealed some obvious problems in practical applications. Firstly, its operation is relatively complex. Because it involves the coordinated operation of multiple components such as the drive motor, transmission shaft, gears, and racks, construction personnel not only need to operate the drive motor but also monitor the mechanical transmission between the components. A problem in any link can affect the smooth progress of the hoisting operation. This complex operation undoubtedly increases the difficulty and workload for construction personnel, reducing hoisting efficiency. Secondly, the equipment structure is complex. The fixing mechanism of this device consists of numerous parts, such as the first fixing block, the first gear, the second gear, and the fixing rod assembly. The use of a large number of parts not only makes the manufacturing process more cumbersome and increases manufacturing costs, but also, due to the complex structure, construction personnel find it difficult to quickly locate and resolve faults during equipment maintenance and repair, increasing the difficulty and time cost of equipment maintenance.

[0005] In summary, existing aerated concrete block hoisting devices have shortcomings in terms of ease of operation and equipment structure, and a new technical solution is urgently needed to improve them in order to enhance the efficiency and economy of aerated concrete block hoisting operations. Summary of the Invention

[0006] This invention proposes a rapid lifting tool for aerated concrete blocks, which solves the problems of poor operation convenience and complex equipment structure in the prior art.

[0007] The technical solution of this invention is implemented as follows: A rapid lifting tool for aerated concrete blocks includes a base plate and a sleeve. The sleeve is equipped with a support mechanism for supporting the base plate. The support mechanism includes two parallel support rods. A set of opposite surfaces of the sleeve has transversely arranged grooves. The two ends of the support rods slide in the grooves. The sleeve is equipped with a drive mechanism that moves the two support rods closer together or further apart within the grooves. The base plate supports the aerated concrete blocks. The sleeve is detachably connected to the base plate via the support mechanism. The support mechanism, as the core force transmission component, achieves support and separation through purely mechanical means, eliminating redundant components such as motors and drive shafts, thus simplifying the overall structure. Furthermore, the support and separation operations are completed solely through mechanical linkage, requiring no electrical control, making the operation steps simpler and solving the problems of complex structure and cumbersome operation in existing equipment.

[0008] The drive mechanism includes a handle, a first link, and a second link. The middle part of the handle is rotatably connected to the sleeve. The upper ends of both the first and second links are rotatably connected to the end of the handle. The lower end of the first link is rotatably connected to the end of one support rod, and the lower end of the second link is rotatably connected to the end of the other support rod. The drive mechanism adopts a purely mechanical linkage design, eliminating the need for a motor or other power source. This eliminates the need for circuits, motors, and control modules, significantly simplifying the structure and reducing manufacturing costs and failure rates. Operators can simultaneously drive the two support rods by rotating the handle. The force transmission is direct and effortless, and the operation is simple, requiring no complex button controls or motor adjustments, greatly improving ease of operation.

[0009] The handle has a U-shaped structure. The opening of the U-shaped structure is connected to the first and second connecting rods, and the middle part of the U-shaped structure is rotatably connected to the sleeve. The operator holds the bottom of the U-shaped structure and pushes the handle to swing, so that the first and second connecting rods simultaneously apply force to both ends of the support rod, avoiding the problem of uneven load in single-rod operation and reducing the difficulty of operation. At the same time, the rotation fulcrum in the middle of the U-shaped structure and the connection point of the end connecting rod form a reasonable lever ratio, making operation more effortless.

[0010] The slide is equipped with elastic clips at both ends. When the two support rods move away from each other, the elastic clips engage with the support rods. The elastic clips automatically lock the two support rods when they are moving away from each other, ensuring they remain in a distanced state. This eliminates the need for additional electric locking devices or manual pins, facilitating the vertical movement of the sleeve relative to the pad. Furthermore, the engagement and release of the elastic clips are automatic as the support rods move, requiring no additional operator intervention, thus shortening the operation process and resolving the problems of complex structure and numerous operating steps.

[0011] The sleeve includes a horizontally arranged rectangular frame, with vertically arranged angle steel at the four corners of the rectangular frame. Side plates are attached to adjacent pairs of angle steel, and the four side plates together form a rectangular protective cylinder. The combined structure of the rectangular frame, angle steel, and side plates is constructed using conventional profiles welded or bolted together, resulting in simple processing and low cost.

[0012] The handle, first connecting rod, and second connecting rod are located on the outside of the rectangular protective cylinder. The external drive mechanism avoids the need for a complex transmission space inside the protective cylinder, simplifying its structural design. Furthermore, operators can directly operate the handle from the outside of the protective cylinder without needing to go under the stack, providing a wider field of vision and reducing obstruction from the gas-filled blocks during operation.

[0013] The slide groove is located at the lower part of the side plate, and the lower edge of the slide groove is flush with the rectangular frame. The support rod inside the slide groove overlaps the rectangular frame. When the support rod provides support to the pad, the rectangular frame can provide support to the support rod, which optimizes the structural design of the side plate under stress. It can ensure that the sleeve has sufficient support strength for the support rod without additional reinforcing ribs, and improves the support stability of the sleeve for the pad.

[0014] The pad includes a horizontally arranged flat plate, with two parallel support bars at the bottom of the plate. The height of the support bars is greater than the distance from the support rod to the bottom surface of the sleeve; the support bars support the plate to a certain height, facilitating the movement of the support rod to the underside of the plate.

[0015] The bottom surface of the flat plate has two parallel strip grooves, located on either side of the two support bars. These grooves serve a positioning function; as the two support bars approach each other, they automatically engage with the grooves, eliminating the need for operator alignment and improving the efficiency of the support action. When the lifting equipment is being hoisted, the support bars cooperate with the grooves to fix the relative position of the pad and the support bars, ensuring the stability of the lifting equipment during the hoisting process.

[0016] The upper end of the frame is equipped with hooks. There are four hooks, and the hooks are positioned on the upper ends of four angle steels.

[0017] The beneficial effects of this invention are: simplified structure and reduced cost: It eliminates the complex transmission components such as motors, gears, and racks found in existing technologies, adopting a purely mechanical drive structure, reducing the number of parts, manufacturing costs, and the probability of failure, while also facilitating on-site maintenance and repair. Convenient operation and improved efficiency: The opening and closing of the support rod can be controlled by manually rotating the U-shaped handle. The operation process is simple and intuitive, requiring no external power source such as electricity, adapting to complex construction site environments, significantly shortening hoisting preparation and unloading time, and improving hoisting efficiency.

[0018] Enhanced stability and safety: The design of the support rod and the slotted pad, the anti-slip texture on the flat surface, and the lateral protection of the rectangular protective cylinder all enhance the stability of the hoisting process; the elastic clamps at both ends of the slide can be positioned when the support rod is opened to prevent accidental slippage and further improve the ease of operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a rapid lifting tool for aerated concrete blocks according to the present invention; Figure 2 This is a sectional view of the frame; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the pad structure; Figure 5 This is a diagram illustrating the use of hoisting equipment; Figure 6 Use a sectional view for hoisting tools.

[0021] In the diagram: 1. Pad, 11. Flat plate, 12. Support bar, 13. Strip groove, 2. Sleeve, 21. Rectangular frame, 22. Angle steel, 23. Side plate, 24. Hook, 25. Slide groove, 26. Elastic clamp, 27. Rotary shaft, 3. Handle, 4. First connecting rod, 5. Second connecting rod, 6. Support rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1, as Figure 1As shown, a rapid lifting tool for aerated concrete blocks includes a pad 1 and a sleeve 2. The sleeve 2 is provided with a support mechanism for supporting the pad 1. The support mechanism includes two parallel support rods 6. A set of opposite surfaces of the sleeve 2 are provided with transversely arranged sliding grooves 25. The two ends of the support rods 6 are slidably engaged with the sliding grooves 25. The sleeve 2 is provided with a driving mechanism, which drives the two support rods 6 to move closer or further apart within the sliding grooves 25. Specifically, when the two support rods 6 are close to each other, the support rods 6 provide support for the pad 1; when the two support rods 6 are far apart, the sleeve 2 can move up and down relative to the pad 1. The support rods 6 are round or square rods; in this embodiment, the support rods 6 are round rods. The pad 1 is used to support the gas blocks, and the sleeve 2 is detachably connected to the pad 1 through the support mechanism. The support mechanism, as the core force transmission component, achieves support and separation through pure mechanical cooperation, eliminating the need for electric components and simplifying the overall structure. At the same time, the support and separation operations are completed only through mechanical linkage, without the need for electric control, making the operation steps simpler and solving the problems of complex structure and cumbersome operation of existing equipment.

[0024] Furthermore, the drive mechanism includes a handle 3, a first connecting rod 4, and a second connecting rod 5. The middle part of the handle 3 is rotatably connected to the sleeve 2. The upper ends of the first connecting rod 4 and the second connecting rod 5 are simultaneously rotatably connected to the ends of the handle 3. The lower end of the first connecting rod 4 is rotatably connected to the end of a support rod 6, and the lower end of the second connecting rod 5 is rotatably connected to the end of another support rod 6. Both ends of one support rod 6 are connected to the first connecting rod 4, and both ends of the other support rod 6 are simultaneously connected to the second connecting rod 5. That is, both ends of the two support rods 6 are connected to the handle 3 through connecting rods. When the handle 3 moves, it can simultaneously apply force to the first connecting rod 4 and the second connecting rod 5 at both ends of the support rod 6, avoiding the problem of uneven load in single-rod operation and reducing the difficulty of operation. When the handle 3 swings on the sleeve 2, it can drive the first connecting rod 4 and the second connecting rod 2 to move, thereby driving the two support rods 6 to move closer or further apart through the first connecting rod 4 and the second connecting rod 5. Specifically, when the head of the handle 3 swings upward, the upper ends of the first link 4 and the second link 5 move away from the slide groove 25, the angle between the first link 4 and the second link 5 decreases, and the two support rods 6 move closer to each other. At this time, the support rods 6 can provide support for the pad 1. When the head of the handle 3 swings downward, the upper ends of the first link 4 and the second link 5 move closer to the slide groove 25, the angle between the first link 4 and the second link 5 increases, and the two support rods 6 move away from each other. At this time, the support rods 6 cancel their support for the pad 1, and the sleeve 2 can move up and down relative to the pad 1.

[0025] Furthermore, the handle 3 has a U-shaped structure. The opening of the U-shaped structure is connected to the first connecting rod 4 and the second connecting rod 5, and the middle part of the U-shaped structure is rotatably connected to the sleeve 2. A pivot 27 is provided on the side wall of the sleeve 2, and the middle part of the handle 3 is rotatably connected to the pivot 27. The operator holds the bottom of the U-shaped structure and pushes the handle 3 to swing. In addition, in this embodiment, the distance from the pivot 27 to the opening of the U-shaped structure is greater than the distance from the bottom of the U-shaped structure to the pivot 27, forming a force-saving lever, so that the operator only needs to apply a small force to drive the support rod 6 to move, further improving the ease of operation; and it can avoid the situation where the support rod 6 cannot move into place when the bottom of the U-shaped structure contacts the side wall of the sleeve 2, thus avoiding interference.

[0026] Furthermore, such as Figure 3 As shown, elastic clips 26 are provided at both ends of the slide groove 25. When the two support rods 6 move away from each other, the elastic clips 26 engage with the support rods 6. The openings of the elastic clips 26 at both ends of the slide groove 25 are arranged opposite each other. The bottom of the elastic clips 26 is fixed to the end of the slide groove 25, and the clamping part of the elastic clips 26 cooperates with the side wall of the slide groove 25. When the two support rods 6 move away from each other, after they are fully in place, the elastic clips 26 spring back and engage with the support rods 6, achieving automatic locking. This ensures that the two support rods 6 are always in a far-away state, eliminating the need for an additional electric locking device or manual pin, and facilitating the up-and-down movement of the sleeve 2 relative to the pad 1. In addition, the engagement and release of the elastic clips 26 are automatically completed with the movement of the support rods 6. When the support rods 6 approach each other, they squeeze the elastic clips 26 to deform and unlock them. No additional operation by the operator is required, shortening the operation process and solving the problems of complex structure and many operation steps.

[0027] like Figure 5 , Figure 6 As shown, the process of using the hoisting tool is as follows: First, place the pad 1 flat on the ground, then place the aerated concrete blocks on the pad 1, ensuring that the height of the blocks does not exceed the height of the sleeve 2; the operator pushes the tail of the handle 3 upwards, causing the handle 3 to move the two support rods 6 away from each other via the first connecting rod 4 and the second connecting rod 5. When the two support rods 6 move to the end of the slide groove 25, the support rods 6 are engaged in the elastic clamp 26. At this time, the elastic clamp 26 limits the support rods 6, ensuring that the two support rods 6 are always in a relative position. The components are placed far apart; then, a crane is used to lift the sleeve 2 and move it directly above the pad 1. After the sleeve 2 is aligned with the pad 1, the crane slowly lowers the sleeve 2. After the sleeve 2 is completely on the ground, the operator presses down on the tail of the handle 3, so that the handle 3 drives the two support rods 6 to move closer to each other through the first connecting rod 4 and the second connecting rod 5. At this time, the two support rods 6 move to the lower side of the pad 1. When the crane lifts the sleeve 2, it can lift the pad 1 and the aerated concrete blocks on the pad 1 at the same time, so as to realize the lifting and transportation of the aerated concrete blocks.

[0028] After the crane lifts the aerated concrete block to the target position, the crane simultaneously lowers the frame 2, the pad 1, and the aerated concrete block. The operator pushes the tail of the handle 3 upward, causing the handle 3 to move the two support rods 6 away from each other through the first link 4 and the second link 5. The elastic clamp 26 automatically engages and locks the support rods 6, at which point the support rods 6 no longer support the pad 1. Then the frame 2 is raised to remove the aerated concrete block, completing the lifting operation.

[0029] Throughout the hoisting process, the connection or disconnection between the frame 2 and the pad 1 can be achieved simply by pushing the handle 3 up or down. The operation is simple and convenient, improving hoisting efficiency.

[0030] Example 2, based on Example 1, provides a rapid lifting tool for aerated concrete blocks, such as... Figure 2 As shown, the sleeve 2 includes a horizontally arranged rectangular frame 21. Vertically arranged angle steel 22 is located at the four corners of the rectangular frame 21. Side plates 23 are attached to adjacent angle steel 22, and the four side plates 23 together form a rectangular protective cylinder. The rectangular frame 21 is constructed of welded square steel. The inner side length of the rectangular frame 21 is greater than the side length of the pad 1, ensuring that the sleeve 2 can smoothly fit into the pad 1 and the aerated concrete block stack. The lower ends of the angle steel 22 are welded to the rectangular frame 21, forming a vertical load-bearing structure. The side plates 23 are made of steel plates or steel mesh, and the height of the side plates 23 is greater than the height of the aerated concrete block stack. The side plates 23 provide protection and effectively prevent the aerated concrete blocks from tipping over laterally. The side plates 23 are welded to the angle steel 22. The combined structure of the rectangular frame 21, angle steel 22, and side plates 23 uses conventional profiles for welding, which is simple to process and low in cost.

[0031] Furthermore, the handle 3, the first connecting rod 4, and the second connecting rod 5 are located on the outside of the rectangular protective cylinder. The external drive mechanism avoids the need for a complex transmission space inside the protective cylinder, simplifies the structural design of the protective cylinder, and effectively prevents collisions between the drive mechanism and the aerated block during the descent of the sleeve 2, ensuring the stability of the aerated block on the pad 1 during the lifting and lowering of the sleeve 2. Simultaneously, operators can directly operate the handle 3 from the outside of the protective cylinder without needing to go under the stack, providing a wider field of vision and reducing obstruction from the aerated block during operation.

[0032] Furthermore, the slide 25 is located at the lower part of the side plate 23, and the lower edge of the slide 25 is flush with the rectangular frame 21. The slide 25 is a horizontally arranged elongated through groove; the support rod 6 inside the slide 25 overlaps the rectangular frame 21. When the support rod 6 provides support to the pad 1, the rectangular frame 21 can provide support to the direct support rod 6, which optimizes the structural design of the side plate 23 under stress. It can ensure that the sleeve 2 has sufficient support strength for the support rod 6 without the side plate bearing the load alone or without additional reinforcing ribs, thereby improving the support stability of the sleeve 2 for the pad 1.

[0033] Furthermore, such as Figure 4As shown, the pad 1 includes a horizontally arranged flat plate 11, and two parallel support bars 12 are provided at the bottom of the flat plate 11. The height of the support bars 12 is greater than the distance from the support rod 6 to the bottom surface of the sleeve 2; the support bars 12 support the flat plate 11 to a certain height, so that the support rod 6 can be moved smoothly to the underside of the flat plate 11.

[0034] Furthermore, the bottom surface of the flat plate 11 is provided with two parallel strip grooves 13, which are located on both sides of the two support bars 12. In this embodiment, the strip grooves 13 are arc-shaped grooves and are arranged close to the support sleeve 12. The strip grooves 13 have a positioning function. When the two support rods 6 approach each other, the support rods 6 automatically engage with the strip grooves 13. The relative horizontal movement of the pad plate 1 and the support rods 6 is restricted by the wall of the strip grooves 13, eliminating the need for alignment by the operator and improving the efficiency of the support action. When the hoisting tool is lifted, the support rods 6 cooperate with the strip grooves 13 to fix the relative position of the pad plate 1 and the support rods 6, ensuring the stability of the hoisting tool during the lifting process and preventing slippage.

[0035] Furthermore, a hook 24 is provided at the upper end of the sleeve 2. The hook 24 is located at the upper end of the side plate 23 or the angle steel 22. In this embodiment, the hook 24 is welded to the upper end of the angle steel 22. During hoisting, the upward pulling force is directly transmitted to the rectangular frame 21 through the angle steel 22, which determines the structural stability of the sleeve 2 during hoisting. Moreover, the position of the hook coincides with the center of gravity of the sleeve 2, avoiding uneven loading and tilting during hoisting.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid lifting tool for aerated concrete blocks, comprising a pad (1) and a frame (2), characterized in that, The sleeve (2) is provided with a support mechanism for supporting the pad (1); the support mechanism includes two parallel support rods (6), and a set of opposite surfaces of the sleeve (2) are provided with transversely arranged sliding grooves (25). The two ends of the support rods (6) are slidably engaged with the sliding grooves (25). The sleeve (2) is provided with a drive mechanism, which drives the two support rods (6) to move closer or further away from each other in the sliding grooves (25).

2. The rapid lifting tool for aerated concrete blocks according to claim 1, characterized in that, The drive mechanism includes a handle (3), a first link (4) and a second link (5). The middle part of the handle (3) is rotatably connected to the sleeve (2). The upper ends of the first link (4) and the second link (5) are rotatably connected to the end of the handle (3). The lower end of the first link (4) is rotatably connected to the end of a support rod (6), and the lower end of the second link (5) is rotatably connected to the end of another support rod (6).

3. The rapid lifting tool for aerated concrete blocks according to claim 2, characterized in that, The handle (3) is a U-shaped structure. The opening of the U-shaped structure is connected to the first link (4) and the second link (5). The middle part of the U-shaped structure is rotatably connected to the sleeve (2).

4. The rapid lifting tool for aerated concrete blocks according to any one of claims 1 to 3, characterized in that, The two ends of the slide (25) are provided with elastic clips (26). When the two support rods (6) move away from each other, the elastic clips (26) engage with the support rods (6).

5. The rapid lifting tool for aerated concrete blocks according to claim 4, characterized in that, The sleeve (2) includes a horizontally arranged rectangular frame (21), with vertically arranged angle steel (22) at the four corners of the rectangular frame (21), and side plates (23) on two adjacent angle steels (22). The four side plates (23) together form a rectangular protective cylinder.

6. The rapid lifting tool for aerated concrete blocks according to claim 5, characterized in that, The handle (3), the first link (4), and the second link (5) are located outside the rectangular protective cylinder.

7. The rapid lifting tool for aerated concrete blocks according to claim 5, characterized in that, The slide (25) is located at the lower part of the side plate (23), and the lower edge of the slide (25) is flush with the rectangular frame (21).

8. The rapid lifting tool for aerated concrete blocks according to claim 1, characterized in that, The pad (1) includes a horizontally arranged flat plate (11) with two parallel support bars (12) at the bottom of the flat plate (11).

9. The rapid lifting tool for aerated concrete blocks according to claim 8, characterized in that, The bottom surface of the plate (11) is provided with two parallel strip grooves (13), which are located on both sides of the two support bars (12).

10. The rapid lifting tool for aerated concrete blocks according to claim 1, characterized in that, The upper end of the frame (2) is equipped with a hook (24).

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