Hoisting method for hoisting prefabricated square block and beam type hoisting tool

Abstract

The invention relates to a hoisting method for hoisting a prefabricated square block and a beam type sling, and belongs to the technical field of sling type slings.The hoisting method for hoisting the prefabricated square block comprises the following steps that S1, a sling of hoisting equipment is connected with a beam frame of the sling, one end of a sling used for binding the prefabricated square block is fixed to the first side of the beam frame, and the other end of the sling is fixed to the second side of the beam frame; one end of one sling is fixed to the first side of the beam frame, the other end of the sling bypasses the prefabricated square block and then is hung on the hydraulic pin shaft below the second side of the beam frame, one end of the other sling is fixed to the second side of the beam frame, and the other end of the sling bypasses the prefabricated square block and then is hung on the hydraulic pin shaft below the first side of the beam frame so as to carry and hoist the prefabricated square block; and S2, the prefabricated square block is hoisted to the needed position, the hydraulic pin shaft is controlled to be disengaged, and the hoisting belt is automatically unhooked. According to the hoisting method for hoisting the prefabricated square block, automatic unhooking of the hoisting belt is achieved through the hydraulic pin shafts arranged at the diagonal points, the operation process is simplified, manual intervention is reduced, and the hoisting efficiency and safety are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sling-type slings, and in particular relates to a hoisting method and a beam-type sling for hoisting prefabricated blocks. Background Art

[0002] A gravity-type block pier or embankment is a wall structure formed by a number of precast solid or hollow concrete blocks laid in a specific pattern. During the construction of a gravity-type pier, the blocks must be precisely positioned to ensure structural stability and durability, making their precise hoisting crucial.

[0003] Traditionally, the cube lifting process involves using a water-based crane vessel connected to a lifting device to lift, position, and install the cube. Automatic unhooking technology for the lifting device can significantly aid in this process. However, no existing lifting device capable of automatic unhooking, suitable for lifting prefabricated cubes on gravity-type docks, has been proposed.

[0004] Therefore, how to provide a hoisting method for hoisting prefabricated blocks is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a lifting method and a beam-type lifting device for lifting prefabricated blocks. By setting the hydraulic pin shaft at a diagonal position, automatic unhooking can be achieved at a limited cost.

[0006] The present invention provides a method for hoisting prefabricated blocks, comprising the following steps:

[0007] S1. Connect the lifting equipment's sling to the sling's beam. One end of a sling used to bind the prefabricated blocks is fixed to the first side of the beam, and the other end is passed around the prefabricated blocks and hung on a hydraulic pin below the second side of the beam. Another sling has one end fixed to the second side of the beam, and the other end is passed around the prefabricated blocks and hung on a hydraulic pin below the first side of the beam, thereby lifting the prefabricated blocks.

[0008] S2. Lift the prefabricated block to the desired location, control the hydraulic pin to disengage, and the lifting belt to automatically unhook.

[0009] This technical solution provides an efficient and safe method for lifting prefabricated blocks, which uses hydraulic pins set at the diagonal points to achieve automatic unhooking of the lifting belt, simplifies the operation process, reduces manual intervention, and improves lifting efficiency and safety.

[0010] In some of the embodiments, in step S1, after the sling is hung on the hydraulic pin shaft, the piston rod of the hydraulic pin shaft remains in an extended state so that the sling is hung on the plug-in pin; in step S2, when the hydraulic pin shaft is controlled to be separated from the lifting ear, the piston rod of the hydraulic pin shaft is controlled to retract and the plug-in pin is separated from the lifting ear, so that the sling is separated from the plug-in pin.

[0011] In some embodiments, in step S1, the other end of the sling is hung on the hydraulic pin through a hook.

[0012] In addition, the present invention also provides a beam-type sling for hoisting prefabricated blocks, which adopts the above-mentioned hoisting method for hoisting prefabricated blocks, and the beam-type sling comprises:

[0013] The beam frame is detachably connected to the hook of the lifting equipment, and the beam frame includes a main beam and a secondary beam, and the secondary beam is vertically installed between the two main beams;

[0014] slings, which are suspended below the main beams and used to connect precast blocks;

[0015] Lifting lugs: A lifting lug is set at each end under each main beam. The lifting lugs located at one pair of diagonal positions of the main beam are provided with a cross bar, and the lifting lugs located at the other pair of diagonal positions of the main beam are provided with a hydraulic pin shaft; the cross bar and the hydraulic pin shaft are both used to hang the sling, and the hydraulic pin shaft is also used to detach the sling.

[0016] This technical solution can achieve automatic unhooking at a limited cost by arranging the hydraulic pin shaft at a diagonal position.

[0017] In some embodiments, a fixing member for fixing the hydraulic pin is provided under the main beam. This technical solution ensures the stable fixation of the hydraulic pin under the main beam through the provision of the fixing member.

[0018] In some embodiments, the hydraulic pin comprises:

[0019] A hydraulic cylinder fixedly connected to the fixing member;

[0020] a piston rod disposed in the hydraulic cylinder and slidably connected to the hydraulic cylinder;

[0021] The plug-in pin is sleeved on the end of the piston rod away from the hydraulic cylinder and is used to hang or detach the sling. This technical solution realizes the automatic operation of the plug-in pin through the cooperation of the hydraulic cylinder and the piston rod.

[0022] In some embodiments, the hydraulic pin shaft is further provided with a cylinder nut, which is installed at the connection between the plug-in pin and the piston rod. This technical solution reduces the shaking and displacement of the plug-in pin during hydraulic operation by providing the cylinder nut.

[0023] In some embodiments, the ends of the slings are equipped with hooks. When hoisting prefabricated blocks, one end of the sling is fixed to the crossbar, and the other end is wrapped around the bottom of the prefabricated block and lifted. The hook is then suspended from a hydraulic pin. This technical solution, through the provision of hooks, makes it easier for the slings to secure and suspend the prefabricated blocks, ensuring stability and safety during the hoisting process.

[0024] In some embodiments, the prefabricated blocks are provided with a hoisting groove for facilitating the bottom lifting of the sling. This technical solution reduces the risk of the sling slipping or shifting by providing the hoisting groove.

[0025] In some embodiments, the beam spreader for lifting the prefabricated blocks further includes a sling, one end of which is connected to the beam frame and the other end is connected to the hook of the lifting equipment. The provision of the sling allows the beam spreader to be more flexibly connected to the lifting equipment.

[0026] Based on the above scheme, the lifting method for lifting prefabricated blocks in the embodiment of the present invention provides an efficient and safe prefabricated block lifting method through detailed lifting steps, and uses hydraulic pins set at diagonal points to realize automatic unhooking of the lifting belt, which simplifies the operation process, reduces manual intervention, and improves lifting efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 This is a state diagram of the hoisting process of a beam-type spreader for hoisting prefabricated blocks in an embodiment of the present invention;

[0029] Figure 2 FIG. 1 is a diagram of the unhooking state of a beam-type spreader for lifting prefabricated blocks according to an embodiment of the present invention;

[0030] Figure 3 This is a side view of the main beam of a beam-type spreader for lifting prefabricated blocks in an embodiment of the present invention;

[0031] Figure 4 Schematic diagram of the structure of the hydraulic pin of the beam spreader for lifting prefabricated blocks in an embodiment of the present invention;

[0032] Figure 5 This is a structural schematic diagram of a beam-type spreader provided with a tractor for lifting prefabricated blocks according to an embodiment of the present invention.

[0033] In the picture:

[0034] 1. Beam frame; 2. Lifting strap; 3. Lifting lug; 4. Prefabricated block; 5. Lifting rope; 6. Puller;

[0035] 101, main beam; 102, secondary beam;

[0036] 201. Hook;

[0037] 31. Crossbar; 32. Hydraulic pin; 321. Plug-in pin; 322. Piston rod; 323. Hydraulic cylinder; 324. Cylinder nut; 33. Fixing piece;

[0038] 401. Lifting trough. DETAILED DESCRIPTION

[0039] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] like Figures 1-4 As shown, in one embodiment of the hoisting method and beam hanger for hoisting prefabricated blocks of the present invention, the hoisting method for hoisting prefabricated blocks comprises the following steps: S1, as shown in FIG. Figure 1 As shown, the lifting equipment's sling 5 is connected to the sling's beam 1, and one end of a sling 2 for tying the prefabricated blocks is fixed to the crossbar 31, and the other end is passed around the prefabricated block 4 and then hung on the hydraulic pin 32, so as to lift the prefabricated block 4 from the bottom; S2, hoist the prefabricated block 4 to the desired position, as shown in FIG. Figure 2 As shown, the hydraulic pin 32 is controlled to disengage from the lifting eye 3, and the lifting belt 2 is automatically unhooked.

[0043] In the above-mentioned schematic embodiment, an efficient and safe method for lifting the prefabricated block 4 is provided through detailed lifting steps. The hydraulic pin shaft 32 set at the diagonal point is used to realize the automatic unhooking of the sling 2, which simplifies the operation process, reduces manual intervention, and improves the lifting efficiency and safety.

[0044] In some embodiments, in step S1, after the sling 2 is hung on the hydraulic pin shaft 32, the piston rod 322 of the hydraulic pin shaft 32 remains in an extended state so that the sling 2 is hung on the plug-in pin 321; in step S2, when the hydraulic pin shaft 32 is controlled to disengage from the lifting ear 3, the piston rod 322 of the hydraulic pin shaft 32 is controlled to retract, and the plug-in pin 321 is disengaged from the lifting ear 3, so that the sling 2 is disengaged from the plug-in pin 321.

[0045] In some embodiments, in step S1 , the other end of the sling 2 is hung on the hydraulic pin 32 via the hook 201 .

[0046] Based on the above-mentioned lifting method for lifting prefabricated blocks, the present invention also provides a beam-type lifting device for lifting prefabricated blocks, which includes a beam frame 1, a sling 2 and a lifting lug 3; wherein the beam frame 1 is detachably connected to the hook 201 of the lifting equipment, and the beam frame 1 includes a main beam 101 and a secondary beam 102, and the secondary beam 102 is vertically installed between the two main beams 101; the sling 2 is suspended below the main beam 101 and is used to connect the prefabricated blocks 4; a lifting lug 3 is provided at each end below each main beam 101, and the lifting lugs 3 located at one pair of diagonal positions of the main beam 101 are provided with a cross bar 31, and the lifting lugs 3 located at the other pair of diagonal positions of the main beam 101 are provided with a hydraulic pin shaft 32; the cross bar 31 and the hydraulic pin shaft 32 are both used to hang the sling 2, and the hydraulic pin shaft 32 is also used to detach the sling 2.

[0047] In the above-mentioned exemplary embodiment, the beam-type sling for lifting prefabricated blocks realizes the rapid positioning and lifting of the prefabricated blocks 4 by setting the beam frame 1, the sling 2 and the lifting lug 3; the beam frame 1 is detachably connected to the hook 201 of the lifting equipment, so that the sling can be flexibly used in conjunction with different lifting equipment; the combination of the main beam 101 and the secondary beam 102 enhances the stability and load-bearing capacity of the sling, ensuring safety during the lifting process; the sling 2 is suspended below the main beam 101 and is used to connect the prefabricated blocks 4, making the lifting process more stable, reducing the shaking of the blocks during the lifting process, and improving the accuracy of the lifting; and by setting the hydraulic pin shaft 32 in a diagonal position, automatic unhooking can be achieved at a limited cost. In summary, the beam-type sling for lifting prefabricated blocks in this embodiment can reduce construction costs and improve construction quality, realize efficient, accurate and safe lifting of the prefabricated blocks 4, and provide a simple and efficient technical solution for the lifting of prefabricated blocks 4.

[0048] In some embodiments, as Figure 3 As shown, a fixing member 33 for fixing the hydraulic pin shaft 32 is provided below the main beam 101. By setting the fixing member 33, the hydraulic pin shaft 32 is stably fixed below the main beam 101, thereby providing a more reliable connection during the hoisting process.

[0049] Further, if Figure 4 As shown, the hydraulic pin 32 includes a hydraulic cylinder 323, a piston rod 322, and an insertion pin 321. The hydraulic cylinder 323 is fixedly connected to the fixing member 33. The piston rod 322 is disposed within the hydraulic cylinder 323 and is slidably connected thereto. The insertion pin 321 is sleeved on the end of the piston rod 322 away from the hydraulic cylinder 323 and is used to suspend or detach the sling 2. The hydraulic pin 32 automatically operates the insertion pin 321 through the cooperation between the hydraulic cylinder 323 and the piston rod 322, enabling automatic unhooking of the prefabricated block 4, reducing the complexity and labor intensity of manual operation.

[0050] In some embodiments, as Figure 4 As shown, the hydraulic pin shaft 32 is further provided with a cylinder nut 324, which is installed at the connection between the plug pin 321 and the piston rod 322. The provision of the cylinder nut 324 reduces the shaking and displacement of the plug pin 321 during hydraulic operation, thereby reducing the risk of operational errors and further improving the safety of the lifting process.

[0051] In some embodiments, as Figure 5 As shown, the beam-type spreader for lifting precast blocks also includes tractors 6, which are mounted on hydraulic pins 32 below the two main beams 101 and are used to pull the slings 2. The tractors 6 effectively pull the slings 2, ensuring that the slings 2 remain stable and controlled during the lifting process, reducing the risk of slipping or shifting of the slings 2, thereby improving the safety and accuracy of the lifting.

[0052] As an illustrative embodiment, the tractor 6 may be a hand chain hoist.

[0053] In some embodiments, two pairs of lifting lugs 3 are provided at both ends below each main beam 101. The provision of two sets of lifting lugs 3 improves the adaptability of the lifting device to prefabricated blocks 4 of different sizes.

[0054] In some embodiments, as Figure 2As shown, the end of the sling 2 is provided with a hook 201. When hoisting the prefabricated block 4, one end of the sling 2 is fixed to the crossbar 31, and the other end is wrapped around the bottom of the prefabricated block 4 and lifted. The hook 201 is then suspended on the hydraulic pin 32. Specifically, when hoisting the prefabricated block 4, one end of the sling 2 is fixed to the crossbar 31, and the other end is first connected to the tractor 6. The tractor 6 pulls the sling 2 around the bottom of the prefabricated block 4 and lifts it. The hook 201 is then detached from the tractor 6 and suspended on the hydraulic pin 32. The provision of the hook 201 makes it easier for the sling 2 to secure and suspend the prefabricated block 4, ensuring stability and safety during the hoisting process. It also simplifies the operation steps and improves hoisting efficiency.

[0055] In some embodiments, as Figure 1 As shown, the prefabricated block 4 is provided with a hoisting groove 401 for facilitating the bottom lifting of the sling 2. By providing the hoisting groove 401, the risk of the sling 2 sliding or shifting is reduced, making the hoisting process more stable and reliable.

[0056] In some embodiments, the spacing between the lifting ears 3 on the same main beam 101 of the lifting slots 401 matches the spacing between the lifting slots 401 on the prefabricated blocks 4 .

[0057] In some embodiments, as Figure 1 As shown, the beam spreader for lifting prefabricated blocks also includes a sling 5, one end of the sling 5 is connected to the beam frame 1, and the other end is connected to the hook 201 of the lifting equipment. Through the arrangement of the sling 5, the beam spreader can be more flexibly connected to the lifting equipment.

[0058] Through the description of multiple embodiments of the hoisting method and beam-type sling for hoisting prefabricated blocks of the present invention, it can be seen that the hoisting method and beam-type sling for hoisting prefabricated blocks of the present invention have at least one or more of the following advantages:

[0059] 1. The beam-type spreader for lifting prefabricated blocks provided by the present invention can achieve automatic unhooking at a limited cost by arranging the hydraulic pin 32 at a diagonal position;

[0060] 2. The beam-type lifting device for lifting prefabricated blocks provided by the present invention can reduce construction costs while improving construction quality, thereby achieving efficient, accurate, and safe lifting of the prefabricated blocks 4;

[0061] 3. The hoisting method for prefabricated blocks provided by the present invention provides an efficient and safe hoisting method for prefabricated blocks 4 through detailed hoisting steps. The hydraulic pin shaft 32 is used to realize the automatic unhooking of the sling 2, which simplifies the operation process, reduces manual intervention, and improves the hoisting efficiency and safety.

[0062] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to preferred embodiments, persons skilled in the art should understand that the specific implementation methods of the present invention may still be modified or some technical features may be replaced by equivalents without departing from the spirit of the technical solutions of the present invention, and all of these should fall within the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A method for hoisting prefabricated blocks, characterized in that: The following steps are involved: S1. Connect the lifting equipment's sling to the sling's beam. One end of a sling used to bind the prefabricated blocks is fixed to the first side of the beam, and the other end is passed around the prefabricated blocks and hung on a hydraulic pin below the second side of the beam. Another sling has one end fixed to the second side of the beam, and the other end is passed around the prefabricated blocks and hung on a hydraulic pin below the first side of the beam, thereby lifting the prefabricated blocks. S2. Lift the prefabricated block to the desired location, control the hydraulic pin to disengage, and the lifting belt to automatically unhook.

2. The method for hoisting prefabricated blocks according to claim 1, wherein: In step S1, after the sling is hung on the hydraulic pin shaft, the piston rod of the hydraulic pin shaft remains extended so that the sling is hung on the plug-in pin; in step S2, when the hydraulic pin shaft is controlled to be separated from the lifting ear, the piston rod of the hydraulic pin shaft is controlled to retract and the plug-in pin is separated from the lifting ear, so that the sling is separated from the plug-in pin.

3. The method for hoisting prefabricated blocks according to claim 1 or 2, characterized in that: In step S1, the other end of the sling is hung on the hydraulic pin through a hook.

4. A beam-type sling for lifting prefabricated blocks, characterized in that: The method for hoisting prefabricated blocks according to any one of claims 1 to 3 is adopted, wherein the beam-type hoist comprises: The beam frame is detachably connected to the hook of the lifting equipment, and the beam frame includes a main beam and a secondary beam, and the secondary beam is vertically installed between the two main beams; slings, which are suspended below the main beams and used to connect precast blocks; Lifting lugs: A lifting lug is set at each end under each main beam. The lifting lugs located at one pair of diagonal positions of the main beam are provided with a cross bar, and the lifting lugs located at the other pair of diagonal positions of the main beam are provided with a hydraulic pin shaft; the cross bar and the hydraulic pin shaft are both used to hang the sling, and the hydraulic pin shaft is also used to detach the sling.

5. The beam type spreader for lifting prefabricated blocks according to claim 4, characterized in that: A fixing piece for fixing the hydraulic pin shaft is provided under the main beam.

6. The beam type spreader for lifting prefabricated blocks according to claim 5, characterized in that: Hydraulic pins include: A hydraulic cylinder fixedly connected to the fixing member; a piston rod disposed in the hydraulic cylinder and slidably connected to the hydraulic cylinder; The plug-in pin is sleeved on the end of the piston rod away from the hydraulic cylinder and is used to hang or detach the sling.

7. The beam type spreader for lifting prefabricated blocks according to claim 6, characterized in that: The hydraulic pin shaft is also provided with a cylinder nut, which is installed at the connection between the plug pin and the piston rod.

8. The beam type spreader for lifting prefabricated blocks according to claim 4, characterized in that: There is a hook at the end of the sling. When lifting the prefabricated block, one end of the sling is fixed to the crossbar, and the other end is wrapped around the bottom of the prefabricated block and lifted up, and then the hook is hung on the hydraulic pin shaft.

9. The beam type spreader for lifting prefabricated blocks according to claim 4, characterized in that: The prefabricated blocks are provided with lifting grooves for easy lifting with slings.

10. The beam type spreader for lifting prefabricated blocks according to claim 4, characterized in that: It also includes a sling, one end of which is connected to the beam frame and the other end is connected to the hook of the lifting equipment.

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