Splicing device for steel members

Abstract

The utility model relates to a steel member splicing device which comprises connecting assemblies, splicing plates, tightening assemblies and electric screwdrivers, the connecting assemblies are fixed to the two ends of a steel member and assist in hoisting of the steel member, fastening holes and positioning holes are formed in the connecting ends of the steel member, and the fastening holes in the steel member are arranged at intervals to form an annular structure. The tightening assembly comprises a positioning head, a fixed bolt and a movable sleeve, the movable sleeve can slide in the axial direction of the fixed bolt, a driving gear is arranged on the movable sleeve, a groove for insertion of a screwdriver is formed in the outer end face of the movable sleeve, and the positioning head is located in the center of the annular structure. Fastening holes which are annularly distributed are also formed in the reinforcing plate, the reinforcing plate is attached to the end of the steel member, a splice plate is installed on the outer side of the reinforcing plate, each fastening bolt is sleeved with a gear nut, the driving gear is meshed with each gear nut at the same time, the driving gear is driven by the electric screwdriver to rotate, and synchronous tightening of all the gear nuts is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to an auxiliary device for fabricated building construction, in particular to a steel member assembling device. BACKGROUND

[0002] H-shaped steel is a type of steel material with a cross-section shaped like the letter "H", widely used in construction, bridges, machinery manufacturing, and other engineering structures. Its unique cross-sectional design makes H-shaped steel excel in load-bearing and bending resistance, effectively dispersing stress and providing greater structural stability. This steel is usually made through hot rolling or cold rolling processes, offering superior performance, excellent weldability, and workability, making it an indispensable material in modern construction and civil engineering.

[0003] PEC components are a type of partially coated steel-concrete composite components, referred to as PEC structures. They are a new type of steel-concrete composite structure formed by welding steel bars or flat steel inside the cavity of H-shaped steel and pouring concrete. This structure includes PEC steel-concrete composite columns, PEC steel-concrete composite beams, and PEC steel-concrete composite shear walls. Its cross-sectional composition is similar to that of steel-concrete composite components, but the H-shaped steel flange is located on the outer periphery of the cross-section, contributing more to the bending stiffness and bending capacity of the component, forming a different stress characteristic from steel-concrete composite structures.

[0004] In the prior art, PEC steel-concrete composite columns, PEC steel-concrete composite beams, and PEC steel-concrete composite shear walls have multiple defects during the construction and splicing process, especially during the operation of tightening the nuts. First, the operation efficiency is low, and traditional manual tightening of nuts requires a long time and multiple adjustments of tool positions, prolonging the construction period. In addition, improper tightening sequence can lead to uneven stress at the connection, causing structural deformation or instability, which requires construction personnel to have certain experience and skills, increasing the complexity of construction. Second, the risk of nut loosening is high, and construction personnel may not be able to apply uniform torque due to fatigue or improper operation, affecting the safety of the structure. At the same time, the traditional method cannot monitor the tightening torque in real time, and cannot timely detect the loosening of nuts or the decrease in torque due to material fatigue, posing a safety hazard. Strong dependence on manpower is also a major problem, as the construction process is highly dependent on the technical level and physical condition of the construction personnel, leading to unstable construction quality. Inconsistent connection quality also occurs, and there is a lack of effective control and standardized operation, which may cause inconsistent connection quality and affect the load-bearing capacity of the overall structure. In addition, during the tightening process of multiple nuts, if the tightness of a nut needs to be adjusted, the other tightened nuts often need to be disassembled, increasing the complexity and time cost of adjustment. Finally, equipment limitations also affect construction, as the space in some construction sites is limited, restricting the use of tools, and traditional manual tightening tools may not work effectively in these environments.

[0005] In summary, the defects in the operation of sequentially tightening the nuts in the construction splicing process of the PEC steel-concrete composite column, the PEC steel-concrete composite beam and the PEC steel-concrete composite shear wall not only affect the construction efficiency and quality, but also may bring potential risks to the subsequent structural safety, and therefore it is particularly important to adopt a more efficient and intelligent connecting and tightening technology. Practical new type content

[0006] The utility model discloses a steel member's assembling device can realize the synchronous tightening of multiple nut arranged in a ring shape, which helps to improve the connecting efficiency of the steel member and the reliability of the steel member connection.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0008] A steel member's assembling device, comprising a connecting assembly, a splicing plate, a tightening assembly and an electric wrench, the connecting assembly is used for being fixed at both ends of the steel member and assisting the hoisting of the steel member, the splicing plate is installed at the end of the steel member and is used for fixing the splicing end of the steel member in cooperation with the reinforcing plate, and the electric wrench is used for tightening the gear nut for fixing the splicing end of the steel member in cooperation with the tightening assembly.

[0009] One side of the splicing plate is provided with a plurality of fastening studs, the fastening studs are rod-shaped and perpendicular to the splicing plate, the plurality of fastening studs are arranged in a ring structure in a spaced manner, and one gear nut is sleeved on each fastening stud; the tightening assembly comprises a positioning head, a fixed stud and a movable sleeve, the positioning head and the fixed stud are both cylindrical, the diameter of the positioning head is greater than that of the fixed stud, one end of the positioning head is connected with the fixed stud, the other end of the fixed stud is sleeved with the movable sleeve, the movable sleeve can slide along the fixed stud in the axial direction, a spring is sleeved on the fixed stud between the positioning head and the movable sleeve, a driving gear is arranged on the outer circumference of the movable sleeve, the driving gear is used for simultaneously engaging with each gear nut, the driving gear is fixedly connected with the movable sleeve, and a groove for inserting the electric wrench is formed on the outer end face of the movable sleeve.

[0010] Further, the connecting assembly has a U-shaped structure in cross section, and comprises upper and lower clamping blocks and a connecting plate connecting the upper and lower clamping blocks, bolt holes are symmetrically formed in the upper and lower clamping blocks, a threaded connecting rod is arranged in the bolt hole of the upper clamping block, and a connecting sleeve pipe with an internal thread is arranged in the bolt hole of the lower clamping block, the upper and lower clamping blocks are used for clamping the upper and lower flanges of the steel member respectively, and the connecting assembly is fixed at the end of the steel member by inserting the connecting rod into the connecting sleeve pipe, a pull ear is arranged on the top surface of the upper clamping block, a movable ring is arranged on the pull ear, and an avoiding opening through which the splicing plate passes is formed in the connecting plate.

[0011] Further, a plurality of fastening holes for the fastening bolt of the splicing plate are arranged at the web end of the steel member, and the plurality of fastening holes are arranged in a ring structure, and a positioning hole for inserting the positioning head of the tightening assembly is arranged at the center of the ring structure formed by the fastening holes.

[0012] Further, a plurality of fastening holes are arranged at the reinforcing plate, and the fastening holes of the reinforcing plate correspond to the fastening holes of the end of the steel member.

[0013] The utility model discloses a traditional nut is replaced for gear nut, and utilize the fastening bolt of splicing plate to position every gear nut, make all gear nuts arrange into ring structure, design can cooperate with electric wrench and be equipped with the drive gear of tightening assembly, make the drive gear of tightening assembly be located at the center of ring arrangement gear nut, can be engaged with every gear nut simultaneously, drive the drive gear of tightening assembly to rotate through electric wrench, realize the synchronous tightening of all gear nuts of the connecting end of steel member, greatly improve the efficiency of tightening nut, guarantee the consistency of all gear nuts stress, improve the security and reliability of steel member assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the explosion chart of steel member assembly device in example use state;

[0015] Figure 2 It is the explosion chart of splicing plate and tightening assembly;

[0016] Figure 3 It is the structure schematic view of connecting assembly;

[0017] Figure 4 It is the structure schematic view of tightening assembly;

[0018] Figure 5 It is the distribution position plane view of tightening assembly and gear nut.

[0019] REFERENCE SIGNS:

[0020] 1, H type steel main body;2, concrete;3, fastening hole;4, connecting assembly;400, clamping block;401, connecting sleeve;402, connecting rod;403, pull ear;404, movable ring;405, avoiding mouth;5, splicing plate;50, fastening bolt;6, tightening assembly;600, positioning head;601, fixed bolt;602, movable sleeve;603, drive gear;604, spring;605, recess;7, gear nut;8, positioning groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in connection with the drawings in the embodiments of the utility model.

[0022] This embodiment discloses an assembly device for steel components, wherein the steel components in this embodiment refer to PEC steel components, such as... Figure 1 As shown, the PEC steel component includes an H-beam 1 and concrete 2 located on both sides of the web of the H-beam 1. The assembly of the PEC steel components in this embodiment involves reinforcing plates (not shown in the attached drawings) used for splicing the PEC steel components, as well as the fixing of the splicing plate 5 to the reinforcing plate. It also involves the cooperation of the tightening assembly 6 and the electric screwdriver (also known as an electric screwdriver or electric screwdriver) to simultaneously tighten the nuts used to fix the splicing plate 5 and the reinforcing plate, and the connection assembly 4 used to assist in the hoisting of the PEC steel components.

[0023] Among them, such as Figure 2 As shown, the main body of the splicing plate 5 is a rectangular steel plate. Multiple fastening bolts 50 are spaced apart on one side of the splicing plate 5. Each fastening bolt 50 is a cylindrical threaded rod, and each fastening bolt 50 is perpendicular to the main body. The multiple fastening bolts 50 are arranged in a circular ring structure. The nut in this embodiment is as follows... Figure 2 The gear nut 7 shown has a toothed structure on its outer circumference and internal threads on its inner hole wall. Each fastener 50 of the splicing plate 5 is fitted with a gear nut 7.

[0024] The structure of connecting component 4 is as follows Figure 3 As shown, the cross-section of connecting component 4 has a U-shaped structure, so as to... Figure 3 The indicated direction is for reference. The connecting component 4 includes upper and lower opposing locking blocks 400 and a connecting plate connecting the upper and lower locking blocks 400. An clearance opening 405 is provided on the connecting plate, the size of which must ensure that the splicing plate 5 can pass through. Bolt holes are symmetrically provided on the upper and lower locking blocks 400. A threaded connecting rod 402 is inserted into the bolt hole of the upper locking block 400, and a hollow connecting sleeve 401 with internal threads is inserted into the bolt hole of the lower locking block 400. A pull lug 403 is provided on the top surface of the upper locking block 400, and a movable ring 404 is inserted through a hole in the pull lug 403.

[0025] The structure of tightening component 6 is as follows Figure 4As shown, the tightening assembly 6 comprises a positioning head 600, a fixed bolt 601 and a movable sleeve 602, the positioning head 600 and the fixed bolt 601 are both cylinders, but the diameter of the positioning head 600 is larger than that of the fixed bolt 601. One end of the fixed bolt 601 is fixedly connected with the positioning head 600, and the other end of the fixed bolt 601 is sleeved with the movable sleeve 602, the movable sleeve 602 is a cylindrical sleeve structure, the open end of the movable sleeve 602 is sleeved on the fixed bolt 601, so that the movable sleeve 602 can slide along the axial direction of the fixed bolt 601, a groove 605 for inserting a screwdriver is formed on the outer end face of the movable sleeve 602, a spring 604 is sleeved on the fixed bolt 601 between the positioning head 600 and the movable sleeve 602, one end of the spring 604 is fixed on the movable sleeve 602, and the other end is limited by the connection position of the positioning head 600 and the fixed bolt 601, a driving gear 603 is arranged on the outer circumference of the movable sleeve 602, and the driving gear 603 is fixed on the movable sleeve 602.

[0026] When the PEC steel members are spliced, the PEC steel members are usually hoisted and fixed in position first, and then the connecting plates and bolts are used to fix and connect the splicing ends. In order to facilitate the hoisting of the PEC steel members, the connecting assembly 4 in the embodiment is fixed and installed at both ends of the PEC steel members respectively, as shown in the figure. Figure 1 As shown, a section of area without pouring concrete 2 is left at both ends of the H-shaped steel 1, a plurality of through fastening holes 3 are arranged at intervals on the web in the area, the fastening holes 3 are arranged in a ring structure, so that each fastening bolt 50 of the splicing plate 5 can be inserted into each corresponding fastening hole 3, and a positioning hole 8 is also arranged at the center of the ring structure formed by the fastening holes 3. When the connecting assembly 4 is installed, through holes are also symmetrically arranged on the upper and lower flanges of the connecting end of the H-shaped steel 1, the upper clamping block 400 of the connecting assembly 4 is attached to the top of the upper flange of the H-shaped steel 1, and the lower clamping block 400 is attached to the bottom of the lower flange of the H-shaped steel 1, the connecting rod 402 is inserted through the through hole of the upper flange, the connecting sleeve 401 is inserted through the through hole of the lower flange, the connecting rod 402 is rotated and inserted into the connecting sleeve 401, so that the connecting assembly 4 is fixed at the end of the H-shaped steel 1.

[0027] In summary, reinforcing plates (not shown in the drawings) are needed for assembling PEC steel components, which are used to connect two spliced PEC steel components, and corresponding fastening holes are also needed on the reinforcing plates. After the connecting assembly 4 is installed, the lifting end of the lifting equipment is fixedly connected with the movable ring 404, the PEC steel components are hoisted to the installation position, the ends of the two spliced PEC steel components are butted, the reinforcing plate is then attached to the webs at the ends of the two PEC steel components, the fastening holes on the reinforcing plate are correspondingly matched with the fastening holes 3 on the webs, the splice plate 5 is then passed through the avoiding opening 405 of the connecting assembly 4 and is pressed on the outer side of the reinforcing plate, the fastening studs 50 of the splice plate 5 are passed through the fastening holes 3 on the reinforcing plate and the webs, a gear nut 7 is sleeved on each fastening stud 50, the positioning head 600 of the tightening assembly 6 is then inserted into the positioning hole 8 on the web of the H-shaped steel 1, the movable sleeve 602 is moved, as shown, so that the driving gear 603 is simultaneously engaged with each gear nut 7, the electric wrench is inserted into the groove 605 of the tightening assembly 6, the driving gear 603 is driven to rotate by starting the electric wrench, and each gear nut 7 is synchronously driven to rotate by the driving gear 603, thereby realizing synchronous nut tightening operation. Figure 5

[0028] The embodiment integrates the functions of the above-mentioned components to form an overall assembly process. Through effective utilization of the cooperation of the reinforcing plate, the splice plate 5, the connecting assembly 4 and the tightening assembly 6 in the assembly process, the H-shaped steel 1 can be quickly and efficiently assembled in construction, the construction efficiency is significantly improved, and the labor cost and operation complexity are reduced. In addition, through the modular design of each component, the adaptability and flexibility of the device are further enhanced to cope with different construction environments and requirements.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.​

Claims

1. A steel component assembly device, characterized in that: It includes connecting components, splicing plates, tightening components, and electric screwdrivers. The connecting components are used to fix the steel components at both ends and assist in the hoisting of the steel components. The splicing plates are installed at the ends of the steel components and work with the reinforcing plates to fix the splicing ends of the steel components. The electric screwdrivers and tightening components are used to tighten the gear nuts that fix the splicing ends of the steel components. One side of the splicing plate is provided with multiple fastening bolts. The fastening bolts are rod-shaped and perpendicular to the splicing plate. The multiple fastening bolts are arranged in a ring structure with intervals. Each fastening bolt is used to fit a gear nut. The tightening assembly includes a positioning head, a fixing bolt, and a movable sleeve. The positioning head and the fixing bolt are both cylinders. The diameter of the positioning head is larger than the diameter of the fixing bolt. One end of the positioning head is connected to the fixing bolt. The other end of the fixing bolt is fitted with a movable sleeve. The movable sleeve can slide along the axial direction of the fixing bolt. A spring is fitted on the fixing bolt between the positioning head and the movable sleeve. A drive gear is provided on the outer circumference of the movable sleeve. The drive gear is used to mesh with each gear nut at the same time. The drive gear is fixedly connected to the movable sleeve. A groove for inserting a power screwdriver is formed on the outer end face of the movable sleeve.

2. The steel component assembly device according to claim 1, characterized in that: The connecting component has a U-shaped cross-section and includes upper and lower opposing locking blocks and a connecting plate connecting the upper and lower locking blocks. Bolt holes are symmetrically opened on the upper and lower locking blocks. A threaded connecting rod is installed in the bolt hole of the upper locking block, and a connecting sleeve with internal threads is installed in the bolt hole of the lower locking block. The upper and lower locking blocks are used to lock the upper and lower flanges of the steel component respectively, and the connecting component is fixed to the end of the steel component by inserting the connecting rod into the connecting sleeve. The top surface of the upper locking block is provided with a pull lug, and a movable ring is provided on the pull lug. An avoidance opening is opened on the connecting plate for the splicing plate to pass through.

3. The steel component assembly device according to claim 1, characterized in that: Multiple fastening holes are spaced apart at the ends of the web of the steel member for the fastening bolts of the splicing plate to pass through. The multiple fastening holes are arranged in a ring structure, and a positioning hole is opened at the center of the ring structure formed by the fastening holes for the positioning head of the tightening assembly to be inserted.

4. The steel component assembly device according to claim 3, characterized in that: The reinforcing plate also has multiple fastening holes spaced apart, and the fastening holes on the reinforcing plate correspond to the fastening holes at the ends of the steel components.

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