Rapid hoisting tool for aerated blocks

Abstract

The invention relates to the technical field of building construction auxiliary equipment, in particular to a rapid hoisting tool for aerated blocks, and solves the problems of poor operation convenience and complex equipment structure in the prior art, the rapid hoisting tool comprises a base plate and a sleeve frame, and the sleeve frame is provided with a supporting mechanism for supporting the base plate; the supporting mechanism comprises two supporting rods arranged in parallel, a set of opposite faces of the sleeve frame are provided with transversely-arranged sliding grooves, the two ends of each supporting rod are in sliding fit with the sliding grooves, a driving mechanism is arranged on the sleeve frame, and the driving mechanism drives the two supporting rods to be close to or away from each other in the sliding grooves. The device has the advantages that the structure is simplified, the cost is reduced, complex transmission parts such as a motor, a gear and a rack in the prior art are abandoned, a pure mechanical driving structure is adopted, the number of parts is reduced, the manufacturing cost and the fault probability are reduced, and meanwhile on-site maintenance and overhaul are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of building construction auxiliary equipment, in particular to a fast lifting tool for aerated blocks. Background Art

[0002] During the construction process of a building project, autoclaved aerated concrete blocks, as a key component of the building project, have attracted much attention for their transportation methods. Currently, manual handling, forklift handling, and other means are often used to carry aerated blocks. For example, when manually carrying aerated blocks, due to the weight of the aerated blocks themselves and the frequent contact during the transportation process, the aerated blocks may break or be damaged, greatly increasing the material loss cost. In addition, the efficiency of manual handling is low, which seriously affects the construction progress. For example, when using a forklift to transport aerated blocks, although the transportation efficiency is improved to a certain extent, it is difficult to effectively ensure the stability of the blocks when they are hoisted to a high position during operation, and they are prone to shaking, posing a major safety hazard.

[0003] Chinese patent CN112249857A discloses a rapid lifting device and method for aerated concrete blocks. The device comprises multiple components, including a drive motor, a transmission shaft, a gear, a rack, and a fixed rod assembly. During the lifting process, the drive motor rotates the transmission shaft, which in turn interacts with the gear and rack to control the movement of the fixed rod assembly, thereby securing and releasing the pallet and ultimately completing the lifting operation of the aerated blocks.

[0004] However, this existing technical solution has exposed some obvious problems in actual application. On the one hand, its operation process is relatively complicated. Since it involves the coordinated work of multiple components such as the drive motor, transmission shaft, gears and racks, the construction personnel not only need to operate the drive motor, but also need to pay attention to whether the mechanical transmission between the components is normal. Problems in any link may affect the smooth progress of the lifting work. This complicated operation process undoubtedly increases the operation difficulty and workload of the construction personnel and reduces the lifting efficiency. On the other hand, the equipment structure is complex. The fixing mechanism assembly of the device is composed of many parts, such as a first fixed block, a first gear, a second gear, a fixed rod assembly, etc. The use of a large number of parts not only makes the manufacturing process of the equipment more cumbersome and increases the manufacturing cost, but also during equipment maintenance and overhaul, due to the complex structure, it is difficult for construction personnel to quickly locate and solve the fault, which increases the maintenance difficulty and time cost of the equipment.

[0005] In summary, the existing aerated block lifting device has deficiencies in terms of ease of operation and equipment structure, and urgently needs a new technical solution to improve it in order to improve the efficiency and economy of aerated block lifting work. Summary of the Invention

[0006] The present invention provides a quick lifting tool for aerated blocks, which solves the problems of poor operation convenience and complex equipment structure in the prior art.

[0007] The technical solution of the present invention is achieved as follows: A rapid lifting tool for aerated blocks includes a pad and a sleeve. The sleeve is provided with a support mechanism for supporting the pad. The support mechanism includes two parallel supporting rods. A set of opposite surfaces of the sleeve are provided with transversely arranged slide grooves. Both ends of the supporting rods slide in cooperation with the slide grooves. The sleeve is provided with a driving mechanism that drives the two supporting rods to move closer to or away from each other in the slide grooves. The pad is used to carry the aerated blocks. The sleeve is detachably connected to the pad through the support mechanism. The support mechanism serves as the core force transmission component and realizes support and separation through purely mechanical cooperation, eliminating redundant components such as motors and drive shafts and simplifying the overall structure. At the same time, the support and separation operations are completed only through mechanical linkage, without the need for electrical control. The operation steps are simpler, solving the problems of complex structure and cumbersome operation of existing equipment.

[0008] The drive mechanism includes a handle, a first connecting rod, and a second connecting rod. The middle portion of the handle is rotatably connected to the sleeve frame. The upper ends of the first and second connecting rods are simultaneously rotatably connected to the end of the handle. The lower end of the first connecting rod is rotatably connected to the end of one support rod, and the lower end of the second connecting rod 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 power source such as a motor, eliminating the need for circuits, motors, and control modules, significantly simplifying the structure and reducing manufacturing costs and failure rates. The operator can synchronously drive the two support rods by turning the handle, resulting in direct and labor-saving force transmission and a simple operation without the need for complex button controls or motor debugging, greatly improving operational convenience.

[0009] The handle is a U-shaped structure, with the opening of the U-shaped structure connected to the first and second connecting rods, and the middle of the U-shaped structure rotatably connected to the sleeve frame. The operator grasps the bottom of the U-shaped structure and pushes the handle to swing, causing the first and second connecting rods to simultaneously apply force to both ends of the support rod, avoiding the problem of unbalanced load in single-lever operation and reducing operational difficulty. Furthermore, the central rotation fulcrum of the U-shaped structure and the connection points of the end connecting rods form a reasonable leverage ratio, making operation more labor-saving.

[0010] The two ends of the slide are provided with elastic clips. When the two support rods move away from each other, the elastic clips engage with the support rods. When the two support rods move away from each other, the elastic clips automatically lock the two support rods through their own elasticity, so that the two support rods are always separated. No additional electric locking device or manual latch is required, and the sleeve frame can be easily moved up and down relative to the pad. In addition, the engagement and release of the elastic clips are automatically completed with the movement of the support rods, without the need for additional operator operation, shortening the operation process and solving the problems of complex structure and multiple operating steps.

[0011] The housing comprises a horizontally arranged rectangular frame with vertically arranged angle steels at its four corners. Side panels are attached to adjacent angle steels, forming a rectangular protective tube. The combined structure of the rectangular frame, angle steels, and side panels is constructed using conventional profile welding or bolting, resulting in simple and low-cost fabrication.

[0012] The handle, first connecting rod, and second connecting rod are disposed outside the rectangular protective tube. The external placement of the drive mechanism avoids the need for complex transmission space within the protective tube, simplifying the protective tube's structural design. Furthermore, the operator can operate the handle directly from outside the protective tube, eliminating the need to reach beneath the stack, providing a wider field of view and less obstruction from aerated blocks during operation.

[0013] The chute is located at the bottom of the side panel, with its lower edge flush with the rectangular frame. The support rods within the chute are overlapped with the rectangular frame. When the support rods support the backing plate, the rectangular frame also supports the support rods. This optimizes the structural design of the side panel's load-bearing properties, ensuring sufficient support strength for the support rods without the need for additional reinforcement ribs, thereby improving the stability of the support for the backing plate.

[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 between the support rod and the bottom surface of the sleeve frame. The support bars support the plate to a certain height to facilitate the movement of the support rod to the bottom side of the plate.

[0015] The bottom surface of the plate is equipped with two parallel grooves, one on each side of the two support bars. These grooves serve as positioning mechanisms. When the two support bars approach each other, they automatically snap into the grooves, eliminating the need for operator alignment and improving the efficiency of the support action. When the lifting tool is lifted, the support bars and the grooves engage, fixing the relative positions of the pad and support bars, ensuring the stability of the lifting tool during the lifting process.

[0016] The upper end of the sleeve frame is provided with a hook. There are four hooks, and the hooks are provided on the upper ends of four angle steels.

[0017] The beneficial effects of this invention are: Simplified structure and reduced costs: By eliminating the complex transmission components such as motors and gear racks found in existing technologies, a purely mechanical drive structure is adopted, reducing the number of parts, lowering manufacturing costs and the probability of failure, while also facilitating on-site maintenance and repair. Convenient operation and improved efficiency: The support rods can be opened and closed by manually turning the U-shaped handle. The operation process is simple and intuitive, requiring no external power source such as electricity, adapting to the complex environment of construction sites, significantly shortening the time required for hoisting preparation and unloading, and improving hoisting efficiency.

[0018] Enhanced stability and safety: The coordinated design of the support rod and the pad strip groove, the anti-slip grooves on the plate surface, and the lateral protection of the rectangular protective tube all enhance stability during lifting. Elastic clips at both ends of the slide can be positioned when the support rod is opened to prevent accidental sliding and further improve operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0021] In the figure: 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, 26. elastic clip, 27. rotating shaft, 3. handle, 4. first connecting rod, 5. second connecting rod, 6. support rod. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0023] Example 1, as Figure 1As shown, a quick lifting tool for aerated blocks includes a pad 1 and a sleeve 2. The sleeve 2 is provided with a supporting mechanism for providing support for the pad 1; the supporting mechanism includes two parallel supporting rods 6, and a set of opposite surfaces of the sleeve 2 are provided with transversely arranged slide grooves 25. The two ends of the supporting rods 6 are slidably engaged with the slide grooves 25. The sleeve 2 is provided with a driving mechanism, which drives the two supporting rods 6 to move closer to or away from each other in the slide grooves 25. Specifically, when the two support rods 6 are close to each other, the support rods 6 provide support for the pad 1, and when the two support rods 6 are away from each other, the sleeve 2 can move up and down relative to the pad 1; the support rods 6 are round rods or square rods. In this embodiment, the support rods 6 are round rods; the pad 1 is used to carry the aerated block, and the sleeve 2 forms a detachable connection with the pad 1 through a support mechanism; the support mechanism serves as the core force transmission component, and realizes support and separation through pure mechanical cooperation, eliminating the 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 power control, and the operation steps are simpler, which solves the problems of complex structure and cumbersome operation of existing equipment.

[0024] Furthermore, the driving mechanism includes a handle 3, a first connecting rod 4, and a second connecting rod 5. The middle portion of the handle 3 is rotatably connected to the sleeve frame 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 simultaneously 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 overload in single-rod operation and reducing the difficulty of operation; when the handle 3 swings on the sleeve frame 2, it can drive the first connecting rod 4 and the second connecting rod 2 to move, and then drive the two support rods 6 closer to or farther away from each other 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 connecting rod 4 and the second connecting rod 5 are away from the sliding groove 25, the angle between the first connecting rod 4 and the second connecting rod 5 is reduced, and the two support rods 6 are close 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 connecting rod 4 and the second connecting rod 5 are close to the sliding groove 25, the angle between the first connecting rod 4 and the second connecting rod 5 is increased, and the two support rods 6 are 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 is 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 of the U-shaped structure is rotatably connected to the sleeve frame 2. A rotating shaft 27 is provided on the side wall of the sleeve frame 2, and the middle of the handle 3 is rotatably connected to the rotating shaft 27. The operator grasps the bottom of the U-shaped structure and pushes the handle 3 to swing. In addition, in this embodiment, the distance from the rotating shaft 27 to the opening of the U-shaped structure is greater than the distance from the bottom of the structure to the rotating shaft 27, forming a labor-saving lever, so that the operator only needs to apply a small amount of force to drive the support rod 6 to move, further improving the convenience of operation. It can also 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 frame 2, avoiding interference.

[0026] Further, if Figure 3 As shown, elastic clips 26 are provided at both ends of the chute 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 chute 25 are arranged relative to each other, the bottom of the elastic clips 26 is fixed to the end of the chute 25, and the clamping portion of the elastic clips 26 cooperates with the side wall of the chute 25. When the two support rods 6 move away from each other, after they are fully in place, the elastic clips 26 rebound and engage with the support rods 6, achieving automatic locking, so that the two support rods 6 are always in a distanced state, without the need for an additional electric locking device or manual latch, 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 as the support rods 6 move. When the support rods 6 approach each other, the elastic clips 26 are squeezed to deform and unlock, without the need for additional operation by the operator, shortening the operation process and solving the problems of complex structure and multiple operation steps.

[0027] like Figure 5 、 Figure 6 As shown, the use process of the lifting tool is as follows: first, place the pad 1 flat on the ground, and stack the aerated blocks on the pad 1. The stacking height of the aerated blocks does not exceed the height of the sleeve 2; the operator pushes the tail of the handle 3 upward, so that the handle 3 drives the two support rods 6 away from each other through the first connecting rod 4 and the second connecting rod 5. When the two support rods 6 move to the end of the slide 25, the support rod 6 is stuck in the elastic clip 26. At this time, the elastic clip 26 limits the support rod 6 to ensure that the two support rods 6 are always in the same position The two supporting rods 6 are moved to the lower side of the pad 1. When the crane lifts the frame 2, it can lift the pad 1 and the aerated block on the pad 1 at the same time, thereby realizing the lifting of the aerated block.

[0028] After the crane lifts the aerated block to the target position, the crane drops the sleeve 2, pad 1 and aerated block synchronously. The operator pushes the tail of the handle 3 upwards, so that the handle 3 drives the two support rods 6 away from each other through the first connecting rod 4 and the second connecting rod 5. The elastic clip 26 automatically engages and locks the support rod 6. At this time, the support rod 6 cancels the support for the pad 1; then the sleeve 2 is raised to realize the removal of the aerated block and complete the lifting.

[0029] During the entire lifting process, the sleeve frame 2 and the pad 1 can be quickly connected or disconnected by simply pushing the handle 3 up and down. The operation is simple and convenient, and the lifting efficiency is improved.

[0030] Example 2, based on Example 1, a fast lifting tool for aerated blocks, such as Figure 2 As shown, the sleeve 2 includes a horizontally arranged rectangular frame 21, with vertically arranged angle steels 22 provided at the four corners of the rectangular frame 21. Side panels 23 are provided on two adjacent angle steels 22, and the four side panels 23 together form a rectangular protective tube. The rectangular frame 21 is welded together using 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 be smoothly inserted into the pad 1 and the aerated block stack. The lower end of the angle steel 22 is welded to the rectangular frame 21 to form a vertical load-bearing structure. The side panels 23 are steel plates or steel meshes. The height of the side walls 23 is greater than the height of the aerated block stack. The side panels 23 play a protective role and can effectively prevent the aerated blocks from tipping over laterally. The side panels 23 are welded to the angle steels 22. The combined structure of the rectangular frame 21, the angle steels 22, and the side panels 23 is welded using conventional profiles, which is simple to process and low in cost.

[0031] Furthermore, the handle 3, first connecting rod 4, and second connecting rod 5 are arranged outside the rectangular protective tube. The external placement of the drive mechanism avoids the need for a complex transmission space inside the protective tube, simplifies the structural design of the protective tube, and effectively prevents collisions between the drive mechanism and the aerated blocks during the lowering of the sleeve 2, thereby ensuring the stability of the aerated blocks on the pad 1 during the raising and lowering of the sleeve 2. Furthermore, the operator can directly operate the handle 3 from the outside of the protective tube, without having to go deep under the stack, providing a wider field of view and making operation less likely to be obstructed by the aerated blocks.

[0032] Furthermore, a chute 25 is provided at the lower portion of the side panel 23, with the lower edge of the chute 25 flush with the rectangular frame 21. The chute 25 is a horizontally arranged, elongated through-slot; the support rod 6 within the chute 25 is overlapped on the rectangular frame 21. When the support rod 6 provides support for the base plate 1, the rectangular frame 21 can also directly support the support rod 6. This optimizes the structural design of the side panel 23's load-bearing capacity, eliminates the need for the side panel to bear the weight independently, and eliminates the need for additional reinforcement ribs to ensure sufficient support strength of the sleeve 2 for the support rod 6, thereby improving the support stability of the sleeve 2 for the base plate 1.

[0033] Further, if Figure 4As shown, the pad 1 comprises a horizontally arranged flat plate 11 with two parallel support bars 12 disposed at the bottom of the flat plate 11. The height of the support bars 12 is greater than the distance between the support rod 6 and the bottom surface of the sleeve 2; the support bars 12 support the flat plate 11 to a certain height, facilitating the smooth movement of the support rod 6 to the bottom side 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 respectively 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 snap into the strip grooves 13, and the relative horizontal movement of the pad 1 and the support rods 6 is limited by the walls of the strip grooves 13, eliminating the need for operator alignment operations and improving the efficiency of the support action; when the lifting tool is lifted, the support rods 6 cooperate with the strip grooves 13 to fix the relative position of the pad 1 and the support rods 6, ensuring the stability of the lifting tool during the lifting process and preventing slipping.

[0035] Furthermore, a hook 24 is provided at the upper end of the sleeve 2. The hook 24 is disposed on 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 lifting, the upward pulling force is directly transmitted to the rectangular frame 21 through the angle steel 22, ensuring the structural stability of the sleeve 2 during lifting. The position of the hook also coincides with the center of gravity of the sleeve 2, preventing unbalanced loading and tilting during lifting.

[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 in the scope of protection of the present invention.

Claims

1. A quick lifting tool for aerated blocks, comprising a backing plate (1) and a sleeve (2), characterized in that: The sleeve (2) is provided with a support mechanism for providing support for the pad (1); the support mechanism includes two parallel arranged support rods (6); a set of opposite surfaces of the sleeve (2) are provided with a transversely arranged slide groove (25); both ends of the support rod (6) are slidably engaged with the slide groove (25); the sleeve (2) is provided with a driving mechanism, and the driving mechanism drives the two support rods (6) to move closer to or away from each other in the slide groove (25).

2. The rapid lifting tool for aerated blocks according to claim 1, characterized in that: The driving mechanism comprises a handle (3), a first connecting rod (4) and a second connecting rod (5); the middle portion of the handle (3) is rotatably connected to the sleeve frame (2); the upper ends of the first connecting rod (4) and the second connecting rod (5) are simultaneously rotatably connected to the end of the handle (3); the lower end of the first connecting rod (4) is rotatably connected to the end of one support rod (6); and the lower end of the second connecting rod (5) is rotatably connected to the end of another support rod (6).

3. The rapid lifting tool for aerated 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 connecting rod (4) and the second connecting rod (5), and the middle of the U-shaped structure is rotatably connected to the sleeve frame (2).

4. The rapid lifting tool for aerated blocks according to any one of claims 1 to 3, characterized in that: 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) are engaged with the support rods (6).

5. The rapid lifting tool for aerated blocks according to claim 4, characterized in that: The sleeve frame (2) comprises a horizontally arranged rectangular frame (21), wherein four corners of the rectangular frame (21) are provided with vertically arranged angle steels (22), and side plates (23) are provided on two adjacent angle steels (22), and the four side plates (23) are combined to form a rectangular protective tube.

6. The rapid lifting tool for aerated blocks according to claim 5, characterized in that: The handle (3), the first connecting rod (4) and the second connecting rod (5) are arranged outside the rectangular protective tube.

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

8. The rapid lifting tool for aerated blocks according to claim 1, characterized in that: The pad (1) comprises a horizontally arranged flat plate (11), and two parallelly arranged support bars (12) are provided at the bottom of the flat plate (11).

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

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

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