A multi-functional lifting tool

Abstract

This utility model provides a multi-functional lifting tool, belonging to the technical field of structural engineering. It includes a truss main body and side formwork tripods, with side frames symmetrically arranged on both sides of the truss main body. This utility model uses a modularly designed truss main body and side frames to form a core load-bearing frame, with replaceable upper and lower frames for flexible adjustment. Evenly distributed lifting lugs and rebar lifting lugs form a multi-point balancing system, ensuring no deformation during rebar lifting. A top formwork limiting structure precisely controls the pouring dimensions. An innovative top and bottom formwork removal cylinder works in synergy to achieve non-destructive formwork removal. Standardized connection ports enable rapid conversion between the lifting tool and the hanging basket. A high-strength bolt connection system ensures the reliability and durability of the overall structure. This integrated design combines four major functions: rebar lifting, formwork positioning, assisted formwork removal, and structural conversion. While ensuring construction quality, it significantly improves equipment utilization, exhibiting outstanding economy and adaptability.

Description

Technical Field

[0001] This utility model belongs to the technical field of structural engineering, and specifically relates to a multi-functional lifting device. Background Technology

[0002] The multi-functional lifting tool is an auxiliary device used in the construction of UHPC precast beams. It is mainly used for the overall lifting of the steel cage. The lifting tool ensures the uniformity of stress on the steel cage during the lifting process through structural design. It also has the functions of controlling beam deformation and assisting in the disassembly of formwork. It can be adapted to precast beam production lines and hanging basket construction scenarios.

[0003] In traditional precast beam construction, rebar tying and formwork assembly cannot be carried out simultaneously, resulting in low efficiency. In addition, UHPC beams are prone to top shrinkage deformation after pouring, and the side formwork is difficult to remove due to uneven stress during demolding, which seriously affects the construction progress and quality. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional lifting device, which aims to solve the problems mentioned in the background art.

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

[0006] A multi-functional lifting device includes a truss body and a side formwork tripod, side frames symmetrically arranged on both sides of the truss body, a crane lifting lug on the upper part of the side frames, a steel bar lifting lug fixedly installed on the lower part of the side frames, and upper and lower frames detachably connected to the truss body.

[0007] As a preferred embodiment of this utility model, the truss body is provided with a plurality of evenly distributed lifting lugs below it, and the lifting lugs and the steel bar lifting lugs are located in the same vertical plane.

[0008] As a preferred embodiment of this utility model, the top of the truss body is provided with a template limiting structure, which is located at the center between the two side frames.

[0009] As a preferred embodiment of this utility model, the side mold tripod is provided with a top mold release cylinder, and the force-applying end of the top mold release cylinder abuts against the truss body.

[0010] As a preferred embodiment of this utility model, a bottom ejection cylinder is provided below the side mold tripod, and the top ejection cylinder is coaxially arranged with the bottom ejection cylinder.

[0011] As a preferred embodiment of this utility model, the truss body has horizontal portal frame connection ports at both ends, and the connection ports are fixedly connected to the side frame.

[0012] In a preferred embodiment of this utility model, the side frame is connected to the upper and lower frames by high-strength bolts, and the high-strength bolts are evenly distributed along the length of the frame.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: the modularly designed truss main body and side frame form the core load-bearing frame, which can be flexibly adjusted with replaceable upper and lower frames; the evenly distributed lifting lugs and rebar lifting lugs form a multi-point balancing system to ensure that the rebar is not deformed during lifting; the top formwork limiting structure precisely controls the pouring size; the innovative top and bottom formwork removal cylinders work together to achieve non-destructive demolding; the standardized connection port enables rapid conversion between the lifting equipment and the hanging basket; and the high-strength bolt connection system ensures the reliability and durability of the overall structure. This integrated design has four major functions: rebar lifting, formwork positioning, auxiliary demolding, and structural conversion. While ensuring construction quality, it significantly improves equipment utilization and has outstanding economy and adaptability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

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

[0016] Figure 2 This is a side view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 4 This is a schematic diagram illustrating the application of the UHPC production line lifting device of this utility model;

[0019] Figure 5 This is a schematic diagram illustrating the application of lifting equipment in the construction of a continuous beam hanging basket according to this utility model.

[0020] In the diagram: 1. Truss main body; 2. Side frame; 3. Crane hoisting lug; 4. Rebar hoisting lug; 5. Upper and lower frames; 6. Lifting lug; 7. Formwork limiting structure; 8. Side formwork tripod; 9. Top demolding cylinder; 10. Bottom demolding cylinder. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1: Refer to Figures 1-4 This is the first embodiment of the present utility model. This embodiment provides a multi-functional lifting device, including a truss body 1 and a side formwork tripod 8, side frames 2 symmetrically arranged on both sides of the truss body 1, a crane lifting ear plate 3 arranged on the upper part of the side frames 2, a steel bar lifting ear plate 4 fixedly installed on the lower part of the side frames 2, and upper and lower frames 5 detachably connected to the truss body 1.

[0025] The modular assembly enables rapid disassembly and assembly. The symmetrical side frames 2 and the replaceable upper and lower frames 5 form a flexible and adaptable system that can match the construction needs of precast beams with different beam widths. The prefabricated design has been verified by finite element software to ensure the reliability of the structure for repeated use and significantly improve economic efficiency.

[0026] Specifically, multiple evenly distributed lifting lugs 6 are provided below the truss body 1, and the lifting lugs 6 and the steel bar lifting lugs 4 are located in the same vertical plane.

[0027] Among them, the lifting lugs 6 are evenly distributed along the bottom of the truss body 1, forming a balanced system of multiple lifting points synchronously bearing force with the steel bar lifting lugs 4. This structure can effectively distribute the load when lifting the steel bar cage, avoid the deformation of the steel bar caused by local stress concentration, and ensure the geometric accuracy of the precast components.

[0028] Furthermore, the top of the truss body 1 is provided with a template limiting structure 7, which is located at the center between the two side frames 2.

[0029] Among them, the template limiting structure 7, which is set at the top center of the truss body 1, can support the side formwork of the U-shaped beam during the pouring stage, offsetting the tendency of the side formwork to shrink inward due to the self-weight of the bottom slab concrete, and ensuring that the cross-sectional dimensions of the beam meet the design requirements.

[0030] Preferably, the side mold tripod 8 is equipped with a top mold release cylinder 9, and the force-applying end of the top mold release cylinder 9 abuts against the truss body 1.

[0031] Among them, the top demolding cylinder 9 added to the side mold tripod 8 is rigidly connected to the truss body 1, forming a two-way force application point, which overcomes the torque imbalance problem caused by relying solely on the bottom demolding cylinder 10, making the template peeling process smoother.

[0032] It should be noted that a bottom ejection cylinder 10 is provided below the side mold tripod 8, and the top ejection cylinder 9 is coaxially arranged with the bottom ejection cylinder 10.

[0033] The coaxial arrangement of the top demolding cylinder 9 and the bottom demolding cylinder 10 enables symmetrical force application, effectively decomposing the bond force between the concrete and the formwork, avoiding damage to the beam surface during demolding, and improving the quality of the finished product.

[0034] Furthermore, the truss body 1 has horizontal portal frame connection ports at both ends, and the connection ports are fixedly connected to the side frame 2.

[0035] The standardized connection ports at both ends of the truss body 1 allow the lifting equipment to be quickly converted into a horizontal gantry for hanging basket construction, achieving multiple uses for one machine. This design expands the applicable scenarios of the equipment and reduces the cost of repeated purchases.

[0036] Furthermore, the side frame 2 is connected to the upper and lower frames 5 by high-strength bolts, and the high-strength bolts are evenly distributed along the length of the frame.

[0037] Among them, the side frame 2 and the upper and lower frames 5 are connected by high-strength bolts, which not only ensures the reliability of the load-bearing nodes, but also facilitates local replacement and maintenance. The evenly distributed bolt group effectively transmits the composite stress under complex working conditions and extends the service life of the structure.

[0038] In use, the assembled lifting equipment is first hoisted to the construction position by the overhead crane lifting lugs 3. The steel reinforcement lifting lugs 4 and the evenly distributed lifting lugs 6 work together to complete the stable hoisting of the steel reinforcement cage. After hoisting into place, the side formwork is supported by the formwork limiting structure 7 at the top of the truss body 1 to form a stable pouring space. After the concrete is poured, the top demolding cylinder 9 and the bottom demolding cylinder 10 move synchronously to achieve the non-destructive removal of the formwork. After the construction is completed, it can be quickly disassembled and converted. The lifting equipment can be reused as a hanging basket horizontal gantry through the connection ports at both ends of the truss body 1. The whole process realizes the integrated operation process of hoisting, supporting, demolding and conversion.

[0039] In summary, the modularly designed truss main body 1 and side frames 2 form the core load-bearing frame, which can be flexibly adjusted with the replaceable upper and lower frames 5; the evenly distributed lifting lugs 6 and the rebar lifting lugs 4 form a multi-point balancing system to ensure that the rebar is not deformed during lifting; the top formwork limiting structure 7 precisely controls the pouring dimensions; the innovative top demolding cylinder 9 and bottom demolding cylinder 10 work together to achieve non-destructive demolding; the standardized connection port enables rapid conversion between the lifting equipment and the hanging basket; and the high-strength bolt connection system ensures the reliability and durability of the overall structure. This integrated design has four major functions: rebar lifting, formwork positioning, auxiliary demolding, and structural conversion. While ensuring construction quality, it significantly improves equipment utilization and has outstanding economy and adaptability.

[0040] Example 2: Refer to Figure 1 and Figure 5 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a specific application method of the lifting tool in the construction of continuous beam hanging basket.

[0041] Specifically, the horizontal gantry connection is connected to the main truss of the hanging basket, and the spacing between the upper and lower frames 5 is adjusted to accommodate hanging basket structures of different widths.

[0042] Furthermore, the truss body 1 of the lifting device is used as the main load-bearing beam of the horizontal gantry, the side frame 2 is the vertical support component of the gantry, and the crane hoisting ear plate 3 can be used to suspend construction equipment.

[0043] When in use, the assembled lifting equipment is first hoisted to the construction position of the hanging basket, and the connection port 11 is fixed to the main structure of the hanging basket by bolts. During the construction process, the truss main body 1 bears the construction load transmitted from the hanging basket, and the force is balanced and transmitted through the evenly distributed lifting lugs 6.

[0044] In summary, this embodiment makes full use of the modular structure of the lifting equipment. Without changing the main structure, the function of switching from precast beam construction to hanging basket construction can be realized through simple connection conversion, which improves equipment utilization and reduces construction costs.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-functional spreader, characterized by: Includes a truss body (1) and a side formwork tripod (8), side frames (2) symmetrically arranged on both sides of the truss body (1), a crane hoisting ear plate (3) set on the upper part of the side frames (2), a steel bar hoisting ear plate (4) fixedly installed on the lower part of the side frames (2), and upper and lower frames (5) detachably connected to the truss body (1).

2. The multi-functional sling as claimed in claim 1, wherein: The truss body (1) is provided with a plurality of evenly distributed lifting lugs (6) below it, and the lifting lugs (6) and the steel bar lifting lugs (4) are located in the same vertical plane.

3. The multi-functional spreader according to claim 2, wherein: The truss body (1) is provided with a template limiting structure (7) at the top, and the template limiting structure (7) is located at the center between the two side frames (2).

4. The multi-functional spreader according to claim 3, wherein: The side mold tripod (8) is equipped with a top mold release cylinder (9), and the force-applying end of the top mold release cylinder (9) abuts against the truss body (1).

5. The multi-functional spreader according to claim 4, wherein: The side mold tripod (8) is provided with a bottom mold release cylinder (10) below it, and the top mold release cylinder (9) is coaxially arranged with the bottom mold release cylinder (10).

6. A multi-functional spreader according to claim 5, characterized in that: The truss body (1) has horizontal portal frame connection ports at both ends, and the connection ports are fixedly connected to the side frame (2).

7. A multi-functional spreader according to claim 6, characterized in that: The side frame (2) is connected to the upper and lower frames (5) by high-strength bolts, and the high-strength bolts are evenly distributed along the length of the frame.

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