A safety device for lifting and hoisting blocks

Abstract

A kind of safety device for block hoisting, including base, stand, safety cage, drive wheel and hydraulic lifting device, the four top corners of base are fixed stand, safety cage is installed on stand, the bottom end of base is provided with drive wheel, the side of the bottom end of base is provided with hydraulic lifting device.The utility model discloses four groups of drive wheels are set up in the four bottom ends of base, and loading and unloading personnel can hoist and lift operation blind spot transport block, and it is convenient for loading and unloading personnel to move block hoisting safety device;By the base using galvanized nonskid steel sheet, block can be effectively prevented from sliding during hoisting, to avoid block product damage caused by block sliding off;Safety cage is provided with skirting board, to prevent block debris from sliding off during hoisting, causing object impact, hydraulic lifting device is arranged in base, and loading and unloading personnel can unload block to ground quickly by hydraulic lifting device in base when block is transported to specified construction position.

Description

Technical Field

[0001] This utility model relates to the field of block lifting and hoisting technology, and in particular to a safety protection device for block lifting and hoisting. Background Technology

[0002] In construction, masonry blocks are a commonly used building material, making their lifting and hoisting operations particularly important. Masonry block lifting and hoisting technology mainly refers to the process of using lifting equipment to lift masonry blocks from their storage location and then transport them to the designated construction site for installation. During the lifting and hoisting process, blind spots inevitably appear, making it impossible to guarantee the safety of personnel in these blind spots.

[0003] Block hoisting typically employs semi-enclosed safety cages, posing a risk of blocks slipping from the cage and falling as impact. Blocks are usually stacked on the base of the safety cage, which sways during transport, increasing the risk of blocks slipping and causing damage or impact. Upon arrival at the designated construction location, blocks are generally unloaded manually, reducing efficiency; using forklifts further increases construction costs. Summary of the Invention

[0004] This utility model aims to address the shortcomings of existing technologies by providing a safety protection device for lifting and hoisting masonry blocks.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A safety protection device for lifting and hoisting blocks includes a base, columns, a safety cage, drive wheels, and a hydraulic jacking device. The columns are fixed at the four corners of the base, the safety cage is installed on the columns, the drive wheels are installed at the bottom of the base, and the hydraulic jacking device is installed on one side of the bottom of the base.

[0007] The base includes a galvanized checkered steel plate and a square steel plate welded to a frame shape on all four sides, with one end of the galvanized checkered steel plate rotatably connected to one side of the frame-shaped square steel plate.

[0008] The column has slots on two adjacent sides, and bolt holes are provided on the two side plates of the slots. The side of the safety cage is inserted into the slots and the safety cage is locked to the column by bolts passing through the bolt holes.

[0009] The top of the column is provided with a hoisting hole.

[0010] The safety cage includes a top guardrail, a discharge port guardrail, and side guardrails. The side guardrails are inserted into the slots of the two side columns. The three sides of the top guardrail have cross-connecting grooves welded on them, and the top guardrail is connected to the top of the three side guardrails through the cross-connecting grooves. The discharge port guardrail is located directly above the end where the galvanized checkered steel plate and the square steel are rotatably connected, and the discharge port guardrail is inserted into the slots on the sides of the two columns.

[0011] The drive wheel includes a swivel wheel, a brake device, and a mounting plate. The swivel wheel is connected to the base by bolts and the mounting plate, and the brake device is mounted on the swivel wheel.

[0012] The hydraulic lifting device includes a lever handle, a square steel shaft, and a hydraulic jack. The hydraulic lifting device is connected to the square steel of the base away from the unloading guardrail via the square steel shaft. The lever handle is installed on the operating element of the hydraulic jack.

[0013] The safety cage has a toe board with a height of mm installed at the bottom of the unloading port guardrail and the side guardrail.

[0014] The beneficial effects of this utility model are as follows: The base has four sets of drive wheels at its four bottom ends, allowing loading and unloading personnel to transport blocks even in blind spots during lifting operations. This facilitates the movement of the blocks by the loading and unloading personnel and provides a safety protection device for lifting and hoisting. The base is made of galvanized anti-slip steel plate, effectively preventing the blocks from sliding during hoisting and avoiding damage to the finished blocks. The unloading port and top guardrail are not fixed with bolts but use slots for convenient installation and disassembly, facilitating the loading and unloading of blocks. The safety cage is equipped with kick plates to prevent block debris from slipping and causing impact damage during hoisting. A hydraulic jacking device is installed inside the base, allowing loading and unloading personnel to quickly unload the blocks to the ground when they are transported to the designated construction location. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the unloading port protective railing of this utility model when it is raised;

[0017] Figure 3 This is a structural diagram of the present invention with the side guardrail removed, revealing the safety cage, square steel, column and drive wheel.

[0018] Figure 4 This is a schematic diagram of the hydraulic lifting device of this utility model and its connection with the square steel.

[0019] In the diagram: 1-Base; 11-Galvanized checkered steel plate; 12-Square steel; 2-Column; 21-Slot; 22-Bolt; 23-Lifting hole; 3-Safety cage; 31-Top guardrail; 32-Unloading port guardrail; 33-Side guardrail; 34-Bridging groove; 35-Kickboard; 4-Drive wheel; 41-Wheel caster; 42-Brake device; 43-Mounting plate; 5-Hydraulic jacking device; 51-Lever handle; 52-Square steel shaft; 53-Hydraulic jack;

[0020] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] A safety protection device for lifting and hoisting masonry blocks includes a base 1, a column 2, a safety cage 3, a drive wheel 4, and a hydraulic jacking device 5. The column 2 is fixed at the four corners of the base 1, and the safety cage 3 is installed on the column 2. The drive wheel 4 is set at the bottom of the base 1, and the hydraulic jacking device 5 is set on one side of the bottom of the base 1. The drive wheel 4 on the base 1 facilitates the transport of masonry blocks in blind spots during lifting and hoisting operations, and makes it easy for loading and unloading personnel to move the masonry lifting and hoisting safety protection device. When the masonry blocks are transported to the designated construction position, the loading and unloading personnel can quickly unload the masonry blocks to the ground through the hydraulic jacking device 5 inside the base 1.

[0023] The base 1 includes a galvanized patterned steel plate 11 and a square steel 12 welded to a frame shape on all four sides. One end of the galvanized patterned steel plate 11 is rotatably connected to one side of the frame-shaped square steel 12.

[0024] The column 2 has slots 21 on two adjacent sides. Bolt holes are provided on the two side plates of the slots 21. The side of the safety cage 3 is inserted into the slots 21 and the safety cage 3 is locked to the column 2 by bolts 22 passing through the bolt holes.

[0025] The top of the column 2 is provided with a lifting hole 23 to facilitate the installation of lifting tools during lifting.

[0026] The safety cage 3 includes a top guardrail 31, a discharge port guardrail 32, and side guardrails 33. The side guardrails 33 are inserted into the slots 21 of the two side columns 2. The top guardrail 31 has a cross-connection slot 34 welded on the three sides of the square steel. The top guardrail 31 is connected to the top of the three side guardrails 33 through the cross-connection slots 34. The discharge port guardrail 32 is located directly above the end where the galvanized checkered steel plate 11 and the square steel 12 are rotatably connected. The discharge port guardrail 32 is inserted into the slots 21 on the sides of the two columns 2. The discharge port guardrail 32 facilitates loading and unloading of blocks by loading and unloading personnel.

[0027] The drive wheel 4 includes a caster wheel 41, a brake device 42, and a mounting plate 43. The caster wheel 41 is connected to the base 1 by bolts 22 and mounting plate 43. The brake device 42 is mounted on the caster wheel 41. The brake device 41 can be fixed when not in use to prevent the device from sliding and causing objects to hit it.

[0028] The hydraulic lifting device 5 includes a lever handle 51, a square steel shaft 52, and a hydraulic jack 53. The hydraulic lifting device 5 is connected to the square steel 12 of the base 1 away from the unloading guardrail 32 via the square steel shaft 52. The lever handle 51 is installed on the operating element of the hydraulic jack 53. The design of the lever handle 51 makes it easier for loading and unloading personnel to load and unload blocks, improving the convenience of operation.

[0029] The safety cage 3 has a 200mm high kick plate 35 installed at the bottom of the unloading port guardrail 32 and the side guardrail 33. The kick plate 35 prevents the block debris from slipping and causing objects to hit it during hoisting.

[0030] The working principle of this utility model is as follows: During use, the drive wheel 4 is moved to the block loading and unloading position, the drive wheel brake device 42 is activated, and the top guardrail 31 of the safety cage 3 is opened to load the block stack into the safety cage 3 and place it on the base 1. The top guardrail 31 of the safety cage 3 is then closed, and the lifting device is installed through the lifting hole 23 on the column 2 for lifting and hoisting operations. The fully enclosed safety cage 3 can prevent the blocks from falling and causing impact. The galvanized checkered steel plate 11 of the base 1 can effectively prevent the blocks from sliding during hoisting. When the blocks are hoisted to the working surface, the loading and unloading personnel can more easily load and unload the blocks by opening the unloading port guardrail 32 of the safety cage 3 and using the lever handle 51 of the hydraulic jacking device 5, which improves the convenience of operation.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A safety protection device for lifting and hoisting masonry blocks, characterized in that, It includes a base (1), a column (2), a safety cage (3), a drive wheel (4), and a hydraulic lifting device (5). The four corners of the base (1) are fixed with the column (2), the safety cage (3) is installed on the column (2), the bottom end of the base (1) is provided with the drive wheel (4), and the bottom end of the base (1) is provided with the hydraulic lifting device (5).

2. A safety protection device for lifting and hoisting masonry blocks according to claim 1, characterized in that, The base (1) includes a galvanized patterned steel plate (11) and a square steel (12) welded into a frame shape on all four sides. One end of the galvanized patterned steel plate (11) is rotatably connected to one side of the frame-shaped square steel (12).

3. A safety protection device for lifting and hoisting masonry blocks according to claim 1, characterized in that, The column (2) has slots (21) on two adjacent sides. Bolt holes are provided on the two side plates of the slots (21). The side of the safety cage (3) is inserted into the slots (21) and the safety cage (3) is locked onto the column (2) by bolts (22) passing through the bolt holes.

4. A safety protection device for lifting and hoisting masonry blocks according to claim 3, characterized in that, The top of the column (2) is provided with a hoisting hole (23).

5. A safety protection device for lifting and hoisting masonry blocks according to claim 2, characterized in that, The safety cage (3) includes a top guardrail (31), a discharge port guardrail (32), and side guardrails (33). The side guardrails (33) are inserted into the slots (21) of the two side columns (2). The three sides of the top guardrail (31) are welded with cross-connecting slots (34). The top guardrail (31) is connected to the top of the three side guardrails (33) through the cross-connecting slots (34). The discharge port guardrail (32) is set directly above the end of the galvanized patterned steel plate (11) and the square steel (12) that are rotatably connected. The discharge port guardrail (32) is inserted into the slots (21) on the sides of the two columns (2).

6. A safety protection device for lifting and hoisting masonry blocks according to claim 1, characterized in that, The drive wheel (4) includes a caster wheel (41), a brake device (42) and a mounting plate (43). The caster wheel (41) is connected to the base (1) by bolts (22) and mounting plate (43), and the brake device (42) is mounted on the caster wheel (41).

7. A safety protection device for lifting and hoisting masonry blocks according to claim 5, characterized in that, The hydraulic lifting device (5) includes a lever handle (51), a square steel shaft (52), and a hydraulic jack (53). The hydraulic lifting device (5) is connected to the square steel (12) of the base (1) away from the unloading guardrail (32) via the square steel shaft (52). The lever handle (51) is installed on the operating element of the hydraulic jack (53).

8. A safety protection device for lifting and hoisting masonry blocks according to claim 5, characterized in that, The safety cage (3) has a 200mm high kick plate (35) installed at the bottom of the unloading port guardrail (32) and the side guardrail (33).

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