A tunable door-shaped seismic brace

Abstract

This utility model discloses a finely adjustable portal-shaped seismic brace, relating to the field of seismic bracing technology. It includes vertical W-shaped steel, horizontal W-shaped steel, right-angle connectors, and bolt assemblies. The horizontal W-shaped steel is located between two vertical W-shaped steels. One end of the right-angle connector is connected to the vertical W-shaped steel, and the other end is connected to the horizontal W-shaped steel. Both the vertical and horizontal W-shaped steels have W-shaped cross-sections. Both the W-shaped and U-shaped W-shaped steels include a central web, inclined webs, and steel flanges. The right-angle connector includes a vertical web, vertical flanges, a horizontal web, and a horizontal flange. Pentagonal combination holes are provided on the central web, vertical web, and horizontal web, with multiple snap-fit ​​positions, enabling stable connection and bidirectional fine-tuning of the vertical and horizontal W-shaped steels. The right-angle connector stably connects the vertical and horizontal W-shaped steels, improving connection strength and overall stability.

Description

Technical Field

[0001] This utility model relates to the field of seismic bracing technology, and in particular to a finely adjustable portal-shaped seismic bracing. Background Technology

[0002] In building electromechanical engineering, the seismic support for multiple parallel pipelines, such as air conditioning water system pipelines, power cable trays, or large equipment such as fan coil units and water pumps, needs to have a ring-shaped load-bearing capacity. Traditional portal seismic supports are mostly formed by welding vertical steel and horizontal steel, or fixed by ordinary bolts.

[0003] The fixed dimensions of the welded portal seismic bracing cannot be adapted to the spacing and height deviation of pipelines on site. If adjustments are needed, it must be recut and re-welded, resulting in extremely poor construction flexibility. Furthermore, the welding process is prone to stress concentration, which can damage the strength of the steel structure and reduce its seismic performance.

[0004] Ordinary bolt-connected portal seismic bracing, such as the patent with announcement number CN220016333U and name "A Comprehensive Lateral Seismic Bracing Hanger", uses pre-set fixing holes. In order to ensure structural strength, the fixing holes are set at large intervals. The connection position of the vertical and horizontal steel sections cannot be finely adjusted. If there is a deviation in the installation position on site, additional holes need to be drilled to adapt, which not only increases construction costs but also weakens the load-bearing capacity of the steel sections. Utility Model Content

[0005] Therefore, it is necessary to provide a finely adjustable portal seismic brace to address the aforementioned technical problems.

[0006] To achieve the above objectives, this utility model provides a finely adjustable portal-shaped seismic brace, including vertical W-shaped steel, horizontal W-shaped steel, right-angle connectors, bolt assemblies, and an optional top-mounted base; two vertical W-shaped steels are symmetrically arranged, and the horizontal W-shaped steel is horizontally arranged between the two vertical W-shaped steels, the three together forming a portal-shaped structure; One end of the right-angle connector is fixed to the vertical W-shaped steel, and the other end is fixed to the horizontal W-shaped steel; Vertical W-shaped steel, horizontal W-shaped steel, and right-angle connectors are detachably connected by at least two bolt assemblies; The top-mounted base is used to fix the top of the portal structure to the base, enhancing its resistance to tipping.

[0007] The vertical W-shaped steel and the horizontal W-shaped steel are W-shaped steel with the same structure and W-shaped cross-section. The length of both can be cut and set as needed. Both include a central web, diagonal web, steel flanges, end connecting plates, and arc transition parts. The inclined web is symmetrically distributed on both sides of the central web, and the steel flange is symmetrically distributed on both sides of the central web and located on the side of the inclined web away from the central web. That is, the inclined web is set between the central web and the steel flange, forming a W-shaped bending section to improve the load-bearing capacity. The end connecting plate is located on the side of the steel flange away from the inclined web and is used to enhance the end strength of the steel flange; The arc transition section is located at the connection between the central web and the inclined web, the inclined web and the steel flange, and the steel flange and the end connecting plate to disperse stress concentration and prevent the steel from cracking under load. The central web of the vertical W-shaped steel is provided with multiple pentagonal combination holes spaced apart along its height direction, and the central web of the horizontal W-shaped steel is also provided with multiple pentagonal combination holes spaced apart along its length direction. The spacing between the pentagonal combination holes is consistent, providing multiple gear options for bidirectional fine adjustment.

[0008] The right-angle connector is a one-piece molded structure that enables precise connection between vertical and horizontal steel sections. It includes a vertical connection part and a horizontal connection part, which are set perpendicularly and form an L-shape. The vertical connecting part includes a vertical web and vertical flanges symmetrically fixed on both sides of the vertical web; the inner wall of the vertical web is tightly fitted with the outer wall of the central web of the vertical W-shaped steel, and the inner wall of the vertical flange is tightly fitted with the outer wall of the inclined web of the vertical W-shaped steel, forming a double fit in the vertical direction to prevent lateral displacement; a pentagonal combination hole is provided on the vertical web, which is aligned with the pentagonal combination hole of the vertical W-shaped steel to accommodate bolts; The transverse connecting part includes a transverse web and transverse flanges symmetrically fixed on both sides of the transverse web; the inner wall of the transverse web is tightly fitted with the outer wall of the central web of the transverse W-shaped steel, and the inner wall of the transverse flange is tightly fitted with the outer wall of the inclined web of the transverse W-shaped steel, forming a double fit in the transverse direction to prevent transverse displacement; a pentagonal combination hole is provided on the transverse web, which is aligned with the pentagonal combination hole of the transverse W-shaped steel. The vertical and horizontal connecting parts of the right-angle connector are integrally molded to ensure the right-angle accuracy of the gate structure and avoid splicing errors.

[0009] The pentagonal combination hole consists of two side pentagonal holes and a serrated connecting hole; the serrated connecting hole is located between the two side pentagonal holes and partially overlaps to form a continuous through-hole; the serrated connecting hole has at least one set of symmetrically arranged V-shaped grooves with an included angle of 108 degrees, which are adapted to the pentagonal part of the bolt assembly to ensure stable engagement; the side pentagonal holes and any set of V-shaped grooves form an independent engagement hole position with at least 3 fine adjustment positions; The bolt assembly includes a bolt and a nut; the bolt consists of a threaded shank, a pentagonal star, and a threaded head that are coaxially fixed in sequence; the cross-section of the pentagonal star is pentagonal, which is adapted to the snap-fit ​​hole position to prevent rotation and loosening; the diameter of the threaded shank is smaller than the width of the narrowest part of the serrated connecting hole, and can move freely along the length of the serrated connecting hole. When connecting vertically, the screw part passes through the vertical web of the right-angle connector and the five-pointed star combination hole of the central web of the vertical W-shaped steel in sequence, and is threadedly connected to the nut; When connecting laterally, the screw part passes through the pentagonal combination hole of the transverse web of the right-angle connector and the central web of the transverse W-shaped steel in sequence, and is threadedly connected to the nut.

[0010] Top-mounted bases are used to fix the top of portal structures to the base, such as concrete beams and steel beams, enhancing the overall resistance to lateral displacement and tipping.

[0011] The top-mounted base includes a vertical mounting plate, a horizontal mounting plate, and an end bending plate; the vertical mounting plate is fixed perpendicularly to the horizontal mounting plate, forming an L-shape; The inner wall of the vertical mounting plate abuts against the outer wall of the steel flange of the vertical W-shaped steel, and the vertical mounting plate is provided with a five-pointed star combination hole, which is connected to the vertical W-shaped steel through bolt assembly, and can be finely adjusted according to the height of the vertical W-shaped steel; The horizontal mounting plate has mounting holes, which are round holes, adapted to expansion bolts, for fixing to the top base; The end bending plates are symmetrically arranged on both sides of the vertical mounting plate. Their inner walls are tightly fitted with the outer walls of the end connecting plates of the vertical W-shaped steel to form a lateral limit and prevent the vertical W-shaped steel from shifting in the horizontal direction.

[0012] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. Five-pointed star combination holes are opened on the central web, vertical web, and transverse web, and the design of the five-pointed star combination holes has multiple snap-fit ​​positions; by adjusting the relative position of the vertical W-shaped steel and the right-angle connector, the height of the transverse W-shaped steel can be finely adjusted, and by adjusting the relative position of the transverse W-shaped steel and the right-angle connector, the spacing of the vertical W-shaped steel can be finely adjusted. When installation deviation occurs, no additional drilling is required, so as to achieve stable connection between the vertical W-shaped steel and the transverse W-shaped steel and bidirectional installation position fine adjustment; 2. The vertical web and vertical flange of the right-angle connector are in contact with the central web and inclined web of the vertical W-shaped steel, respectively, and the horizontal web and horizontal flange are in contact with the central web and inclined web of the horizontal W-shaped steel, respectively, forming a double-fit structure, increasing the contact area, improving the connection strength, preventing the connection parts of the portal structure from loosening or angular deformation, and improving the overall stability. Attached Figure Description

[0013] Figure 1This is a structural schematic diagram of the adjustable portal-shaped seismic brace according to an embodiment of the present invention; Figure 2 This is an exploded view of the adjustable portal-shaped seismic brace according to an embodiment of the present invention. Figure 3 for Figure 2 A magnified view of a section at point A in the middle; In the diagram, 1. Vertical W-shaped steel; 11. Central web; 12. Sloping web; 13. Steel flange; 14. End connecting plate; 15. Arc transition section; 2. Transverse W-shaped steel; 3. Right-angle connector; 31. Vertical web; 32. Vertical flange; 33. Transverse web; 34. Transverse flange; 4. Bolt assembly; 41. Bolt; 411. Threaded part; 412. Pentagonal part; 413. Threaded head; 42. Nut; 5. Pentagonal combination hole; 51. Side pentagonal hole; 52. Serrated connecting hole; 521. V-groove; 6. Top mounting base; 61. Vertical mounting plate; 62. Horizontal mounting plate; 621. Mounting hole; 63. End bending plate. Detailed Implementation

[0014] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] Please see Figures 1 to 3 This application provides an adjustable portal-shaped seismic brace, comprising: a vertical W-shaped steel 1, a horizontal W-shaped steel 2, a right-angle connector 3, and a bolt assembly 4.

[0016] Two vertical W-shaped steel sections 1 are symmetrically arranged, with a W-shaped cross-section. Each section includes a central web 11, an inclined web 12, a steel flange 13, and an end connecting plate 14. The inclined web 12 is located on both sides of the central web 11, the steel flange 13 is located on both sides of the central web 11, the inclined web 12 is located between the steel flange 13 and the central web 11, and the end connecting plate 14 is located on the side of the steel flange 13 away from the inclined web 12. The central web 11 and the steel flange 13 are arranged parallel to each other. One horizontal W-shaped steel 2 is set up, horizontally erected between two vertical W-shaped steels 1, and its cross-sectional structure is the same as that of the vertical W-shaped steel 1; There are two right-angle connectors 3, including a vertical web 31, a vertical flange 32, a transverse web 33, and a transverse flange 34. The vertical web 31 is perpendicular to the transverse web 33. The vertical flange 32 is located on both sides of the vertical web 31, and the transverse flange 34 is located on both sides of the transverse web 33. Bolt assembly 4 includes bolt 41 and nut 42. Bolt 41 includes a threaded part 411, a pentagonal part 412, and a threaded head 413 connected in sequence. The vertical W-shaped steel 1 center web 11, the horizontal W-shaped steel 2 center web 11, and the vertical web 31 and horizontal web 33 of the right-angle connector 3 are all provided with pentagram combination holes 5, each pentagram combination hole 5 including at least four snap-fit ​​holes.

[0017] The vertical W-shaped steel 1 and the horizontal W-shaped steel 2 are connected by right-angle connector 3 to form a stable gate-shaped structure that can cover the circumferential support of multiple rows of pipelines; the multi-clamping holes of the five-pointed star combination hole 5 can initially achieve fine adjustment of the vertical height and horizontal spacing, adapt to conventional installation deviations, and eliminate the need for additional drilling.

[0018] In some embodiments, please refer to Figure 1 The inner wall of the vertical web 31 of the right-angle connector 3 is completely fitted with the outer wall of the central web 11 of the vertical W-shaped steel 1 without any gap, and the inner wall of the vertical flange 32 is completely fitted with the outer wall of the inclined web 12 of the vertical W-shaped steel 1; the inner wall of the transverse web 33 is completely fitted with the outer wall of the central web 11 of the transverse W-shaped steel 2, and the inner wall of the transverse flange 34 is completely fitted with the outer wall of the inclined web 12 of the transverse W-shaped steel 2. The close-fitting design allows the right-angle connector 3 to make face-to-face contact with the vertical W-shaped steel 1 and the horizontal W-shaped steel 2, increasing the stress-bearing area, effectively dispersing seismic lateral forces, and preventing loosening of the connection nodes; at the same time, it reduces vibration and abnormal noise caused by the fitting gap, and improves the overall stability of the support.

[0019] In some embodiments, please refer to Figures 1 to 3 The five-pointed star combination hole 5 specifically includes two symmetrically distributed side five-pointed star holes 51 and one serrated connecting hole 52 located between the two side five-pointed star holes 51. The two ends of the serrated connecting hole 52 partially overlap with the side five-pointed star holes 51. The serrated connecting hole 52 is provided with two sets of symmetrical V-shaped grooves 521, and the included angle of the V-shaped grooves 521 is 108°.

[0020] The two side pentagram holes 51 and each set of V-grooves 521 are independent snap-fit ​​holes; the pentagram combination hole 5 has four independent snap-fit ​​holes.

[0021] The cross-section of the pentagonal part 412 is a regular pentagonal shape, which is compatible with the pentagonal hole 51 and V-groove 521 on the side of the pentagonal combination hole 5.

[0022] The compatibility between the 108° V-groove 521 and the pentagonal part 412 improves the stability of the snap-fit ​​and avoids hole position displacement caused by vibration; the multi-snap-fit ​​hole design enables geared fine-tuning, improves fine-tuning accuracy, and adapts to common on-site installation deviations; the continuous channel structure of the serrated connecting hole 52 ensures smooth movement of the screw part 411 and simplifies fine-tuning operations.

[0023] In some embodiments, please refer to Figures 1 to 3 The seismic bracing is equipped with two top-mounted bases 6, corresponding to two vertical W-shaped steels 1. Each top-mounted base 6 includes a vertical mounting plate 61, a horizontal mounting plate 62, and two end bending plates 63. The vertical mounting plate 61 has a five-pointed star combination hole 5, the horizontal mounting plate 62 has a mounting hole 621, and the two end bending plates 63 are respectively located on both sides of the vertical mounting plate 61.

[0024] The top mounting base 6 has a vertical mounting plate 61 that abuts against the flange 13 of the vertical W-shaped steel 1; the inner wall of the end bending plate 63 is in contact with the outer wall of the end connecting plate 14 of the vertical W-shaped steel 1. The top mounting base 6 is connected to the vertical W-shaped steel 1 by bolt assembly 4. Bolt 41 passes through the five-pointed star combination hole 5 of the vertical mounting plate 61 and the central web plate 11 of the vertical W-shaped steel 1. The horizontal mounting plate 62 can be fixed to the top base such as a concrete beam by expansion bolt 41 passing through the mounting hole 621.

[0025] The addition of the top mounting base 6 can improve the anti-tipping ability of the gate structure; the limiting fit between the end bending plate 63 and the end connecting plate 14 prevents the vertical W-shaped steel 1 from shifting laterally and ensures the uprightness of the gate structure; the five-pointed star combination hole 5 of the top mounting base 6 can be finely adjusted with the height of the vertical W-shaped steel 1 to accommodate installation errors in height.

[0026] In some embodiments, please refer to Figure 3 A rounded transition section 15 is provided at the connection points of the central web 11 and the inclined web 12 of the vertical W-shaped steel 1 and the horizontal W-shaped steel 2, the connection points of the inclined web 12 and the steel flange 13, and the connection points of the steel flange 13 and the end connecting plate 14.

[0027] The arc transition section 15 effectively disperses stress concentration at various connection points, preventing the W-shaped steel from cracking under gravity or seismic forces; it also improves the fatigue resistance of the W-shaped steel.

[0028] In some embodiments, multiple spaced-apart five-pointed star combination holes 5 are provided on both the vertical W-shaped steel 1 along the height direction and the horizontal W-shaped steel 2 along the length direction; One five-pointed star combination hole 5 is opened on each of the vertical web plate 31 and the horizontal web plate 33 of the right-angle connector 3; During installation, select the target combination hole on the horizontal W-shaped steel 2 according to the pipeline length requirements. If the pipeline is long, select the hole with a larger spacing; if it is short, select the hole with a smaller spacing. Align the single hole of the transverse web 33 of the right-angle connector 3 with the target hole of the transverse W-shaped steel 2, and similarly align the single hole of the vertical web 31 of the right-angle connector 3 with the target hole of the vertical W-shaped steel 1.

[0029] The design of multiple five-pointed star combination holes 5 for vertical W-shaped steel 1 and horizontal W-shaped steel 2 can improve the flexibility of length adaptation. Different hole positions can be selected according to the pipeline length, without the need to customize W-shaped steel of different lengths. The single hole design of right-angle connector 3 simplifies the accessory structure while ensuring adaptability and reducing production costs. It is suitable for complex installation scenarios with varying pipeline lengths.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A finely adjustable portal-shaped seismic brace, characterized in that, It includes vertical W-shaped steel, horizontal W-shaped steel, right-angle connectors, and bolt assemblies. Two vertical W-shaped steels are symmetrically arranged, and the horizontal W-shaped steel is located between the two vertical W-shaped steels. One end of the right-angle connector is connected to the vertical W-shaped steel, and the other end is connected to the horizontal W-shaped steel. The vertical W-shaped steel and the horizontal W-shaped steel both have W-shaped cross sections. Both the W-shaped steel and the U-shaped W-shaped steel include a central web, an inclined web, and steel flanges. The inclined web is located on both sides of the central web, the steel flange is located on both sides of the central web, and the inclined web is located between the steel flange and the central web. The right-angle connector includes a vertical web, vertical flanges, a transverse web, and transverse flanges. The vertical web and transverse web are perpendicular to each other. The vertical flanges are located on both sides of the vertical web, and the transverse web is located on both sides of the transverse web. The inner wall of the vertical web contacts and fits with the outer wall of the central web of the vertical W-shaped steel. The inner wall of the vertical flange contacts and fits with the outer wall of the central web of the vertical W-shaped steel. The inner wall of the transverse web contacts and fits with the outer wall of the central web of the transverse W-shaped steel. The inner wall of the transverse flange contacts and fits with the outer wall of the central web of the transverse W-shaped steel. Five-pointed star combination holes are provided on the central web, vertical web, and transverse web; The bolt assembly includes a bolt and a nut. The bolt includes a threaded portion, a pentagonal portion, and a threaded head. The threaded portion passes through the pentagonal assembly hole and is threadedly connected to the nut. The pentagonal combination hole includes at least two snap-fit ​​holes that can engage with the pentagonal part.

2. The adjustable portal-shaped seismic brace according to claim 1, characterized in that, The inner wall of the vertical web plate is attached to the outer wall of the central web plate of the vertical W-shaped steel, and the inner wall of the vertical flange is attached to the outer wall of the central web plate of the vertical W-shaped steel; the inner wall of the transverse web plate is attached to the outer wall of the central web plate of the transverse W-shaped steel, and the inner wall of the transverse flange is attached to the outer wall of the central web plate of the transverse W-shaped steel.

3. The adjustable portal-shaped seismic brace according to claim 1, characterized in that, The pentagonal combination hole consists of two side pentagonal holes and a serrated connecting hole located between the two side pentagonal holes. The serrated connecting hole partially overlaps with the two side pentagonal holes. The serrated connecting hole includes at least one set of symmetrically arranged V-shaped grooves. The side pentagonal holes and any set of symmetrically arranged V-shaped grooves form a snap-fit ​​hole.

4. The adjustable portal-shaped seismic brace according to claim 3, characterized in that, The included angle of the V-shaped groove is 108 degrees.

5. The adjustable portal-shaped seismic brace according to claim 4, characterized in that, The cross-section of the pentagonal part is pentagonal in shape.

6. The adjustable portal-shaped seismic brace according to claim 1, characterized in that, Both the vertical W-shaped steel and the horizontal W-shaped steel include end connecting plates, which are located on the side of the steel flange away from the inclined web.

7. The adjustable portal-shaped seismic brace according to claim 6, characterized in that, It also includes a top mounting base, which includes a vertical mounting plate, a horizontal mounting plate, and end bending plates. The vertical mounting plate is perpendicular to the horizontal mounting plate and abuts against the flange of the steel section. The horizontal mounting plate has mounting holes. The end bending plates are located on both sides of the vertical mounting plate. The inner walls of the two end bending plates are respectively attached to the outer walls of the two end connecting plates to form a limiting structure. The vertical mounting plate also has a five-pointed star combination hole. The vertical mounting plate and the vertical W-shaped steel section are also connected by bolt assemblies.

8. The adjustable portal-shaped seismic brace according to claim 6, characterized in that, A circular arc transition section is provided between the central web plate and the inclined web plate, between the inclined web plate and the steel flange, and between the steel flange and the end connecting plate.

9. The adjustable portal-shaped seismic brace according to claim 1, characterized in that, Both the vertical and horizontal W-shaped steel sections have multiple spaced-apart five-pointed star combination holes along their length.

10. The adjustable portal-shaped seismic brace according to claim 9, characterized in that, A five-pointed star combination hole is provided on both the vertical web and the horizontal web.

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