A connecting device for H-steel structures

Abstract

The utility model discloses a kind of connecting devices for H steel structure, it is related to steel structure connecting device technical field, including the fixed plate of being fixed in the four sides of external support column by multiple first bolts, the end face outside fixed plate is fixed with triangular support frame, triangular support frame top surface is equipped with support plate, guide slot is opened in support plate both sides, secondary fixed frame is slidably arranged in guide slot, the end of support plate towards fixed plate is equipped with fixed component;The utility model is cooperated by the positioning thread hole of adjusting frame both sides and adjusting bolt, without need on-site measurement cutting and welding, only need to select corresponding positioning thread hole and set adjusting bolt, it is convenient to quickly lock the position of H steel in horizontal direction;Finally solve the problem that current H steel structure connecting device lacks flexible adaptive capacity, needs on-site measurement to weld custom components, cannot be adjusted twice and needs to be removed and redone when changing specifications, improve the adaptive efficiency and convenience of device to different specifications H steel.

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure connection devices, and in particular to a connection device for H-shaped steel structures. Background Technology

[0002] In the field of construction engineering, H-steel structures are widely used in large-scale projects such as factories, bridges, and high-rise buildings due to their advantages such as strong load-bearing capacity, good seismic performance, and high construction efficiency. The stable connection of H-steel structures is a key link to ensure the safety of the overall project structure. The height and width specifications of H-steels vary significantly in construction projects (e.g., the height range covers 300-900mm, and the width range covers 150-400mm), and multiple specifications of H-steels are often required in the same project. Existing H-beam structure connection devices generally lack flexibility and adaptability. In most cases, construction personnel need to measure the connection dimensions between the H-beam and the support column on-site first, and then cut the steel and weld custom connection components according to the measurement results. The entire process requires professional welders, and there is no secondary adjustment after welding. If the specifications of the H-beam change or the dimensional measurement is incorrect, the welded connection components must be completely removed and remade. This not only increases steel waste and labor costs, but also seriously slows down the construction progress, making it difficult to meet the needs of efficient project advancement. Therefore, it is necessary to improve the above-mentioned problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a connecting device for H-steel structures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a connecting device for H-steel structures, comprising a fixing plate fixed to the four sides of an external support column by multiple first bolts, a triangular support frame fixedly connected to the outward end face of the fixing plate, a support plate provided on the top surface of the triangular support frame, guide grooves opened on both sides of the support plate, a secondary fixing frame slidably provided in the guide groove, a fixing component provided at the end of the support plate facing the fixing plate, an adjustment frame fixedly connected at one end of the four fixing plates facing the middle of the external support column and located at the included angle formed by the four fixing plates, and multiple positioning threaded holes equally spaced on both sides of the adjustment frame.

[0005] Preferably, the fixing assembly includes four right-angle plates for abutting the angle between the flange and the web of the H-steel. The number of right-angle plates is four and they are arranged in a rectangular shape. The two right-angle plates at the top are in one group and the two right-angle plates at the bottom are in another group. The two groups of right-angle plates abut the upper and lower flanges and web of the H-steel respectively. An adjusting moving block is provided between each group of right-angle plates. The inner walls of the adjusting frame on both sides have sliding grooves extending in the vertical direction. The two ends of the adjusting moving block are respectively slidably set in the sliding grooves on the corresponding sides. Multiple adjusting bolts are passed through the positioning threaded holes. One end of the multiple adjusting bolts is rotatably passed through the corresponding right-angle plate.

[0006] Preferably, one end of the adjusting bolt is screwed with an abutment nut that abuts against the outer wall of the adjusting frame.

[0007] Preferably, lifting screws are symmetrically arranged on the opposite surfaces of the two adjusting moving blocks, and are respectively rotatably set on the top surface of the adjusting frame and the top surface of the support plate. The opposite ends of the two lifting screws are coaxially fixed with knobs. One side of each of the two lifting screws is provided with a guide rod passing through the adjusting moving block. One end of the guide rod is fixedly connected to the top surface of the adjusting frame, and the other end of the guide rod is fixedly connected to the top surface of the support plate.

[0008] Preferably, multiple fixing bolts are equidistantly inserted on the top surface and both sides of the outer wall of the secondary fixing frame, and one end of each fixing bolt abuts against the flange of the H-steel and the middle of the web, respectively.

[0009] Preferably, a connecting frame is fixed between the opposite top surfaces of the adjustment frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the positioning threaded holes on both sides of the adjustment frame and the adjusting bolts, eliminates the need for on-site measurement, cutting, and welding. Only the corresponding positioning threaded holes need to be selected according to the H-steel specifications to insert the adjusting bolts, facilitating quick locking of the H-steel's horizontal position and improving the convenience and efficiency of H-steel adaptation. This enables rapid adaptation of H-steels of different widths. Furthermore, through the cooperation of the lifting screw and the adjusting moving block, there is no need to weld auxiliary fixing parts. Rotating the lifting screw drives the adjusting moving block and the right-angle plate to rise and fall vertically, facilitating precise adjustment of the right-angle plate height to adapt to H-steels of different heights. This improves the accuracy and efficiency of H-steel height adaptation, enabling flexible adaptation of H-steels with a height range of 300–900 mm. Ultimately, this solves the problems of existing H-steel structure connection devices lacking flexible adaptability, requiring on-site measurement and welding of custom parts, lacking secondary adjustment, and requiring dismantling and remaking for specification changes. This improves the device's efficiency and convenience in adapting to different specifications of H-steels. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure of the support plate proposed in this utility model; Figure 3 This is a schematic diagram of the overall structure of the right-angle plate proposed in this utility model; Figure 4 This is a schematic cross-sectional view of the secondary fixing frame proposed in this utility model.

[0012] The numbers in the diagram are: 1. Triangular support frame; 2. Support plate; 3. Connecting frame; 4. Fixing plate; 5. Adjusting frame; 6. Adjusting moving block; 7. Positioning threaded hole; 8. Guide groove; 9. Secondary fixing frame; 10. Fixing bolt; 11. Sliding groove; 12. Right angle plate; 13. Adjusting bolt. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 4This utility model discloses a connecting device for an H-shaped steel structure, comprising a fixing plate 4 fixed to the four sides of an external support column by multiple first bolts, a triangular support frame 1 fixedly connected to the outward end face of the fixing plate 4, a support plate 2 provided on the top surface of the triangular support frame 1, guide grooves 8 on both sides of the support plate 2, a secondary fixing frame 9 slidably provided in the guide grooves 8, a fixing component provided at the end of the support plate 2 facing the fixing plate 4, and an adjusting frame 5 fixedly connected at the angle formed by the four fixing plates 4, with multiple positioning threaded holes 7 equidistantly opened on both sides of the adjusting frame 5; the fixing plate 4 is made of Q345 steel plate, which has high yield strength and strong load-bearing capacity, and can stably connect the external support column and the triangular support frame 1; the triangular support frame 1. The support plate 2 is made of Q235 steel plate, which has good shear and compressive strength and can evenly distribute the load. The support plate 2 is made of aluminum alloy, which is lightweight and highly corrosion-resistant, and easy to install and adjust. The adjustment frame 5 is made of Q345 steel plate, which has high structural strength and can stably support various components. Through the combination of the above structure and materials, the device can be initially connected to the external support column, providing a basic support structure for the placement and subsequent fixing of the H-beam. At the same time, the positioning threaded hole 7 can be adapted to the height requirements of different specifications of H-beams, laying the foundation for subsequent precise fixing. The above constitutes the basic framework of the device, laying the structural foundation for the realization of various functions of the equipment. The fixing components include a right-angle plate 12 for abutting the angle between the flange and the web of the H-beam. The structure consists of four right-angle plates 12 arranged in a rectangular pattern. The two upper plates form one group, and the two lower plates form another. These two groups of right-angle plates 12 respectively abut against the angles between the flanges and web of the H-steel at the upper and lower ends. An adjusting block 6 passes between each group of right-angle plates 12. The inner walls of the adjusting frame 5 on both sides have vertically extending sliding grooves 11. The two ends of the adjusting block 6 are slidably positioned within the corresponding sliding grooves 11. Multiple adjusting bolts 13 pass through the positioning threaded holes 7, with one end of each bolt 13 rotating and passing through the corresponding right-angle plate 12. The right-angle plates 12 are made of 45# steel, which has high hardness and good wear resistance, allowing for a tight fit with the flanges and web of the H-steel and providing long-term wear resistance, thus achieving the initial... Positioning: The adjusting bolt 13 is of sufficient length and strength, and can stably abut against the right-angle plate 12 after passing through the positioning threaded hole 7; the cooperation between the adjusting moving block 6 and the sliding groove 11 can drive the right-angle plate 12 to move vertically, adapting to H-beams of different heights. The adjusting bolt 13 can lock the position of the right-angle plate 12 to ensure the stable positioning of the H-beam and prevent the H-beam from shifting during subsequent operations; one end of the adjusting bolt 13 is screwed with an abutment nut that abuts against the outer wall of the adjusting frame 5; the abutment nut is made of 45 steel, which has high hardness and strength. When screwed with the adjusting bolt 13, it can provide sufficient locking force to effectively prevent the adjusting bolt 13 from loosening when the device is under stress or vibration, ensuring that the right-angle plate 12 abuts against the H-beam continuously and stably, further improving the overall reliability of the device connection.

[0015] In this invention, two adjusting blocks 6 are symmetrically fitted with lifting screws, which are rotatably mounted on the top surface of the adjusting frame 5 and the top surface of the support plate 2, respectively. A knob is coaxially fixed to the opposite ends of each lifting screw. A guide rod is provided on one side of each lifting screw, passing through the adjusting block 6. One end of the guide rod is fixed to the top surface of the adjusting frame 5, and the other end is fixed to the top surface of the support plate 2. The lifting screws have high transmission efficiency and good self-locking performance, and can stably drive the adjusting blocks 6 to rise and fall during rotation, preventing the adjusting blocks 6 from sliding down due to the weight of the H-beam. The guide rod is made of No. 45 steel, with high straightness and a smooth surface, which can guide the adjusting block 6 to rise and fall smoothly, reducing friction and jamming. The cooperation between the lifting screw and the knob allows the adjusting block 6 to rise and fall vertically by rotating the knob, realizing flexible adjustment of the height of the right-angle plate 12. The guide rod can limit the rotation of the adjusting block 6, ensuring that the adjusting block 6 moves smoothly only in the vertical direction, improving the accuracy and stability of height adjustment, and meeting the adaptation requirements of H-beams of different height specifications. Multiple fixing bolts 10 are equally spaced through the top surface and both sides of the outer wall of the secondary fixing frame 9. One end of each of the multiple fixing bolts 10 abuts against the flange and the middle of the web of the H-steel, respectively. The secondary fixing frame 9 is made of aluminum alloy, which is lightweight and has good toughness. It can move flexibly along the guide groove 8 and stably support the fixing bolts 10. The fixing bolts 10 are small in size and high in strength, and can be flexibly arranged on the secondary fixing frame 9 to effectively abut against the H-steel without damaging its surface. The secondary fixing frame 9 can move along the guide groove 8 to the middle area of ​​the H-steel, and the fixing bolts 10 abut against the flange and the middle of the web of the H-steel, respectively, which can fix the H-steel from multiple directions and eliminate the small gaps between the H-steel and the device. This achieves high-precision positioning of the H-beam, preventing slight displacement of the H-beam due to vibration or load changes, and significantly improving connection stability. A connecting frame 3 is fixed between the opposite faces at the top of the adjustment frame 5. The connecting frame 3 is made of Q235 steel pipe, which is lightweight and has good bending resistance. It can effectively connect the top of the adjustment frame 5 and connect the top structure of the adjustment frame 5 into a whole. When the H-beam is subjected to lateral or vertical loads, the connecting frame 3 can disperse the local impact of the load on the adjustment frame 5, preventing the adjustment frame 5 from bending due to excessive force on one side, and ensuring the stability and durability of the overall structure of the device.

[0016] Working Principle: When using this utility model, the foundation for fixing to the external support column is first established. The operator installs four fixing plates 4 on the four sides of the external support column using multiple first bolts, ensuring that the fixing plates 4 are tightly fitted to the outer wall of the support column and that the force is evenly distributed. Since one end of each of the four fixing plates 4 faces the middle of the external support column, and an adjustment frame 5 is fixed at the included angle formed by them, after the fixing plates 4 are fixed, the adjustment frame 5 will naturally be positioned at the edge of the external support column. This not only reserves space for the subsequent positioning and connection of the H-beam, but also forms a stable support through the connection between the fixing plates 4 and the support column. At the same time, the triangular support fixed to one end of the fixing plate 4... The support frame 1 and the top support plate 2 form a horizontal load-bearing structure, providing a stable support platform for the placement and fixing of the H-beam. The matching edge positions of the support plate 2 and the adjusting frame 5 ensure a reasonable distance between the H-beam and the support column after installation, avoiding space constraints that could hinder adjustment. Next, the H-beam is roughly positioned and adjusted to fit the foundation specifications. After placing the H-beam on the top surface of the support plate 2, the initial height is adjusted using the lifting screws. Rotating the knobs at the opposite ends of the two lifting screws drives the screws to rotate around the inner top surface of the adjusting frame 5 and the top surface of the support plate 2, causing the adjusting moving block 6, which passes through the lifting screws, to rise and fall vertically. The adjusting moving block 6 slides at both ends within the sliding groove 11 of the adjusting frame 5, simultaneously driving two sets of right-angle plates 12 closer to the angle between the flanges and webs at the upper and lower ends of the H-beam. Each set of right-angle plates 12 consists of two plates arranged in a rectangle until the right-angle plates 12 are roughly aligned with the angles, completing the initial adaptation of the height range. Then, based on the current height of the right-angle plates 12, the corresponding positioning threaded holes 7 on both sides of the adjusting frame 5 are selected. Multiple positioning threaded holes 7 are evenly distributed at different heights to match the base height of H-beams of different specifications. The adjusting bolt 13 is inserted into the positioning threaded hole 7 and pushed forward until it abuts against the right-angle plate 12. The abutment nut is tightened to lock the position of the adjusting bolt 13. During this process, the lifting... The lowering screw enables coarse adjustment of the height range, and the positioning threaded hole 7 further fixes the height position after coarse adjustment. Together, they constitute the coarse positioning of the H-beam's height, laying the foundation for subsequent high-precision fixing. The guide rod restricts the rotation of the adjusting moving block 6, ensuring a smooth and non-deviation-free coarse adjustment process. After the coarse height positioning is completed, the adjusting moving block 6 utilizes the slight horizontal movement characteristic along the sliding groove 11. Under the pressure of the adjusting bolt 13, the right angle plate 12 will naturally fit the side of the angle between the flange and the web of the H-beam. Through a combination of local contact and large-area fitting, it initially adapts to the width specification of the H-beam, forming a stable foundation support and preventing the H-beam from undergoing large displacement in subsequent operations.Next comes the high-precision locking stage of the H-steel, a core step ensuring connection accuracy and stability. First, the secondary fixing frame 9 within the guide grooves 8 on both sides of the sliding support plate 2 is moved to the middle region of the H-steel according to its length specifications. This region is the connection point between the flange and web of the H-steel, serving as the stress balance center. Fixing it here maximizes load dispersion and avoids localized stress concentration. Then, the multiple fixing bolts 10 on the top and sides of the outer wall of the secondary fixing frame 9 are tightened. The top fixing bolt 10 is pushed vertically until one end tightly abuts against the upper flange of the H-steel, precisely limiting its vertical displacement. The side fixing bolts 10 are pushed horizontally, abutting against the two sides of the web of the H-steel, precisely limiting its horizontal displacement. Through the tightening of bolts in both vertical and horizontal directions, the minute gaps between the H-steel and the device are eliminated, achieving high-precision positioning of the H-steel in space. This ensures that the relative positional error between the H-steel and the device is controlled within a very small range, far exceeding the accuracy level of the coarse positioning stage. Furthermore, the high-precision fixing of the secondary fixing frame 9 and its right-angle... The coarse positioning support of plate 12 complements each other. Right-angle plate 12 bears the foundation load at the angle of H-steel by cooperating with local points and the overall contact surface. The secondary fixing frame 9 is further locked in the middle position of H-steel by high-precision bolts to prevent slight displacement of H-steel due to vibration and load changes, completely eliminating the risk of loosening and forming a double protection structure. Finally, the overall reinforcement stage improves the load resistance of the device. The connecting frame 3, which is fixed between the opposite surfaces at the top of the adjusting frame 5, connects the top structure of the adjusting frame 5 into a whole. To enhance the deformation resistance of the adjusting frame 5, when the H-steel is subjected to lateral or vertical loads, the connecting frame 3 can distribute the load to the local impact of the adjusting frame 5, preventing the adjusting frame 5 from bending due to excessive force on one side. Furthermore, the edge position of the adjusting frame 5, in conjunction with the connecting frame 3, can more efficiently transfer the load to the fixed plate 4 and the external support column. Simultaneously, the triangular structure of the triangular support frame 1 possesses high shear and compressive strength, which can evenly distribute the load transferred from the H-steel to the support plate 2 to the fixed plate 4 and the external support column. At this point, the device is complete.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connecting device for an H-beam structure, comprising a fixing plate (4) fixed to the four sides of an external support column by a plurality of first bolts, characterized in that: A triangular support frame (1) is fixed to the outward end face of the fixed plate (4). A support plate (2) is provided on the top surface of the triangular support frame (1). Guide grooves (8) are opened on both sides of the support plate (2). A secondary fixing frame (9) is slidably provided in the guide grooves (8). A fixing component is provided at one end of the support plate (2) facing the fixed plate (4). One end of the four fixed plates (4) faces the middle of the external support column and is fixed to an adjustment frame (5) at the angle formed by the four fixed plates (4). Multiple positioning threaded holes (7) are opened at equal intervals on both sides of the adjustment frame (5).

2. The connecting device for H-steel structures according to claim 1, characterized in that: The fixing assembly includes a right-angle plate (12) for abutting the angle between the flange and the web of the H-steel. There are four right-angle plates (12) arranged in a rectangular shape. The two right-angle plates (12) at the top are in one group and the two at the bottom are in another group. The two groups of right-angle plates (12) abut the angle between the flange and the web of the H-steel at the top and bottom respectively. An adjusting moving block (6) is provided between each group of right-angle plates (12). The inner walls of the adjusting frame (5) on both sides are provided with sliding grooves (11) extending in the vertical direction. The two ends of the adjusting moving block (6) are respectively slidably set in the sliding grooves (11) on the corresponding sides. Multiple adjusting bolts (13) are passed through the positioning threaded hole (7). One end of the multiple adjusting bolts (13) is rotated and passed through the corresponding right-angle plate (12).

3. A connecting device for H-steel structures according to claim 2, characterized in that: One end of the adjusting bolt (13) is screwed with an abutting nut that abuts against the outer wall of the adjusting frame (5).

4. A connecting device for an H-steel structure according to claim 3, characterized in that: Two adjusting moving blocks (6) are symmetrically provided with lifting screws that are respectively rotatably set on the top surface of the adjusting frame (5) and the top surface of the support plate (2). The opposite ends of the two lifting screws are coaxially fixed with knobs. One side of each of the two lifting screws is provided with a guide rod that passes through the adjusting moving block (6). One end of the guide rod is fixed to the top surface of the adjusting frame (5), and the other end of the guide rod is fixed to the top surface of the support plate (2).

5. A connecting device for an H-beam structure according to claim 4, characterized in that: The secondary fixing frame (9) has multiple fixing bolts (10) equidistantly inserted on the top surface and both sides of its outer wall. One end of each fixing bolt (10) abuts against the H-steel flange and the middle of the web, respectively.

6. A connecting device for an H-beam structure according to claim 5, characterized in that: A connecting frame (3) is fixed between the opposite faces of the top of the adjustment frame (5).

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