A steel component with irregular cross-section
By introducing positioning sleeves and conical shell structures into irregular cross-section steel components, combined with permanent magnet adsorption and a liftable locking mechanism, the problem of misalignment in the assembly of irregular cross-section steel components is solved, and an efficient and reliable connection process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TONGCHUANG STEEL STRUCTURE MANUFACTURING CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-30
AI Technical Summary
The assembly process of irregularly shaped steel components cannot quickly and accurately align the connection holes, which makes the operation time-consuming and labor-intensive, and easily leads to bolt misalignment and component skew, affecting construction efficiency and structural quality.
The system employs a positioning sleeve and a conical shell structure, combined with permanent magnet adsorption and a liftable locking mechanism, to achieve automatic and precise positioning and anti-loosening of the connectors. The conical shell inner cavity guides and the permanent magnet adsorption ensures connection accuracy, while the liftable locking mechanism prevents the nut from loosening.
It significantly improves assembly alignment accuracy, reduces operational intensity, prevents bolt misalignment and component skewing, and ensures the overall reliability of the structure.
Smart Images

Figure CN224431625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel components, and in particular to a steel component with an irregular cross-section. Background Technology
[0002] Irregular cross-section steel components refer to steel structural components whose cross-sectional shape is not the traditional rectangle or circle, but presents special shapes such as T-shape, L-shape, Z-shape, cross-shape, etc. They optimize tensile strength, compressive performance and torsional stiffness by adjusting the geometric characteristics of the cross section, while achieving lightweight design to reduce the amount of material used.
[0003] When assembling steel components with irregular cross-sections, the connection holes need to be precisely aligned to facilitate the use of bolts to connect them to each other. Existing technology relies on manual visual adjustment of the component's position, which is difficult to operate, especially in complex working conditions such as high altitudes. Repeated corrections are time-consuming and labor-intensive, and positioning deviations can easily lead to misaligned bolt holes and component skewing, seriously affecting construction efficiency and structural quality, and making them unsuitable for use. Utility Model Content
[0004] To address the problem that current irregular cross-section steel components cannot quickly and accurately align the connection holes during assembly, resulting in time-consuming and labor-intensive operations for workers and easily causing bolt misalignment and component skew, this utility model provides an irregular cross-section steel component.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a steel component with an irregular cross-section, including a steel component body and a connector. A positioning sleeve is fixedly fitted on the surface of the steel component body, and a conical shell is fixedly connected to the right side of the positioning sleeve. A positioning block that slides and engages with the inner cavity of the conical shell is fixedly installed at the lower part of the connector. Connecting arms are fixedly connected to the front and rear sides of the connector. A screw is provided in the inner cavity of the steel component body. Nuts are threaded through the connecting arms on the front and rear sides of the screw. A locking mechanism is installed on the left side of the positioning sleeve. The locking mechanism includes a movable frame. The inner wall of the movable frame is slidably connected to the surface of the positioning sleeve. A locking case that can lock the nut is fixedly connected to the front and rear sides of the top of the movable frame. An adjustment mechanism that can slide and adjust the movable frame is fixedly connected to the left side of the movable frame.
[0006] Preferably, the adjustment mechanism includes a threaded post and a threaded sleeve fixedly mounted on the movable frame. The threaded post is rotatably connected to the positioning sleeve, and the threaded post is threadedly connected to the threaded sleeve. In this preferred embodiment, the threaded post can rotate, and its surface threads cooperate with the threaded sleeve to adjust the working height of the movable frame, thereby adjusting the position of the locking mechanism.
[0007] Preferably, a knob is fixedly connected to the bottom of the threaded column, and the surface of the knob is provided with anti-slip texture. The surface of the threaded column and the positioning sleeve are rotatably connected through a bearing seat. In this preferred embodiment, the knob facilitates the operator to rotate the threaded column, allowing for easy adjustment of the height of the retaining clip, and the bearing seat improves the stability of the threaded column during rotation.
[0008] Preferably, the positioning sleeve has slide bars fixedly connected to both the front and rear sides of its left side, and the movable frame's inner cavity has grooves on both the front and rear sides of its left side that cooperate with the slide bars. In this preferred embodiment, the slide bars and grooves can improve the stability of the movable frame during its up-and-down movement and prevent tilting or deviation during movement.
[0009] Preferably, the front and rear sides of the positioning sleeve are threaded with positioning bolts, and the top of the clamping housing has a groove for engaging with the nut. In this preferred embodiment, the positioning bolts can position and fix the positioning sleeve, making it convenient for workers to fix the positioning sleeve to the surface of the steel component body by welding, and the groove can improve the stability of the clamping housing in positioning the nut.
[0010] Preferably, a permanent magnet is fixedly connected to the bottom of the conical shell cavity, the positioning block is conical in shape, and a mounting plate is fixedly connected to the top of the positioning block. The top of the positioning block is fixedly connected to the connecting member by screws, and the bottom of the connecting member has a mounting screw hole for use with the positioning block. In this preferred embodiment, the permanent magnet can attract the positioning block to achieve precise positioning and fixing of the connecting member, the screws can facilitate disassembly or fixing between the positioning block and the connecting member, and the mounting screw hole can install and fix the positioning block.
[0011] Preferably, the steel component body has mounting through holes on both the front and rear sides for use with the screw, and the connecting arm has a fixing hole on the left side for use with the screw. In this preferred embodiment, the mounting through holes facilitate the installation and fixing of the two connecting arms with the screw, and the fixing hole further facilitates the installation and fixing of the connecting arms and connectors.
[0012] Preferably, triangular support blocks are fixedly connected to both the front and rear sides of the bottom of the positioning sleeve. In this preferred embodiment, the triangular support blocks are used to improve the stability of the positioning sleeve connection.
[0013] Preferably, the inner wall shape of the positioning sleeve is the same as the surface shape of the steel component body, and the inner diameter of the positioning sleeve is larger than the outer diameter of the steel component body. The inner wall of the positioning sleeve is slidably connected to the surface of the steel component body. In this preferred embodiment, the positioning sleeve can slide up and down on the surface of the steel component body, making it convenient for workers to adjust it to the specified height before welding and fixing.
[0014] Preferably, mounting plates are fixedly connected to both the front and rear sides of the connector, and mounting holes are provided on the top of the mounting plates. In this preferred embodiment, the mounting plates and mounting holes facilitate a secure connection between the connector and the steel beam or other steel structural member.
[0015] As can be seen from the above technical solutions, the advantages of this utility model are as follows: by setting a positioning sleeve and a conical shell that are slidably connected to the steel component body, the conical positioning block is automatically guided into the designated position by the tapered conical surface of the inner cavity of the conical shell. With the adsorption effect of the permanent magnet at the bottom of the conical shell on the positioning block, the connecting parts can be accurately positioned without repeated manual correction, which significantly improves the assembly alignment accuracy, effectively solves the problems of bolt misalignment and component skewing in high-altitude operations, and reduces the operation intensity. At the same time, the design of a liftable locking mechanism is adopted to lock the nut to prevent it from loosening and ensure the overall reliability of the structure. Attached Figure Description
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a bottom view of the structure of this utility model;
[0019] Figure 3 This is a side view of the structure of this utility model;
[0020] Figure 4 This is a cross-sectional view of the positioning sleeve and conical shell of this utility model;
[0021] Figure 5 This is a schematic diagram showing the connection of the connecting arm, screw, and nut of this utility model.
[0022] In the attached diagram: 1. Steel component body; 2. Positioning sleeve; 3. Conical shell; 4. Positioning block; 5. Connector; 6. Connecting arm; 7. Screw; 8. Nut; 9. Locking mechanism; 91. Movable frame; 92. Clamp; 93. Adjustment mechanism; 931. Threaded column; 932. Threaded sleeve; 10. Positioning bolt; 11. Permanent magnet; 12. Mounting plate. Detailed Implementation
[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0024] Example 1
[0025] like Figure 1-5 As shown, a steel component with an irregular cross-section includes a steel component body 1 and a connector 5. A positioning sleeve 2 is fixedly fitted on the surface of the steel component body 1, and a conical shell 3 is fixedly connected to the right side of the positioning sleeve 2. A positioning block 4 is fixedly installed at the lower part of the connector 5 and slides in connection with the inner cavity of the conical shell 3. Connecting arms 6 are fixedly connected to the front and rear sides of the connector 5. A screw 7 is provided in the inner cavity of the steel component body 1. The front and rear sides of the screw 7 pass through the connecting arms 6 and are threaded with nuts 8. A locking mechanism 9 is installed on the left side of the positioning sleeve 2. The locking mechanism 9 includes a movable frame 91. The inner wall of the movable frame 91 is slidably connected to the surface of the positioning sleeve 2. A locking case 92 that can lock the nut 8 is fixedly connected to the front and rear sides of the top of the movable frame 91. An adjustment mechanism 93 that can slide and adjust the movable frame 91 is fixedly connected to the left side of the movable frame 91.
[0026] Among them, the positioning sleeve 2 can slide up and down on the surface of the steel component body 1, making it easy for workers to weld it to the required fixed position. The conical shell 3 has an internal conical space that can cooperate with the positioning block 4 to achieve automatic and precise positioning. The funnel-shaped conical shell 3 guides the tapered conical surface of the positioning block 4, enabling it to be accurately installed in the designated position and limiting the unique assembly angle. The connecting arm 6 can cooperate with the screw 7 and nut 8 to stably position and install the connecting piece 5, making it easy for the connecting piece 5 to be connected and fixed with other steel component bodies 1 or steel beams.
[0027] The locking mechanism 9 is used to lock the nut 8 to prevent the nut 8 from loosening due to vibration during assembly. The movable frame 91 can cooperate with the adjustment mechanism 93 to control the height adjustment of the two retaining shells 92. After the fixing of the connector 5 is completed, the retaining shells 92 can be lifted to lock the nut 8 and prevent the nut 8 from loosening due to vibration.
[0028] Example 2
[0029] The adjusting mechanism 93 includes a threaded post 931 and a threaded sleeve 932 fixedly mounted on the movable frame 91. The threaded post 931 is rotatably connected to the positioning sleeve 2, and the threaded post 931 is threadedly connected to the threaded sleeve 932. A knob is fixedly connected to the bottom of the threaded post 931, and the surface of the knob is provided with anti-slip texture. The surface of the threaded post 931 is rotatably connected to the positioning sleeve 2 through a bearing seat. Slide bars are fixedly connected to the front and rear sides of the left side of the positioning sleeve 2. Slide grooves for cooperating with slide bars are opened on the front and rear sides of the left side of the inner cavity of the movable frame 91. Positioning bolts 10 are threadedly connected to the front and rear sides of the positioning sleeve 2. A slot for cooperating with nut 8 is opened on the top of the retaining shell 92. A permanent magnet 11 is fixedly connected to the bottom of the inner cavity of the conical shell 3. The shape of the positioning block 4 is as follows: The cone-shaped positioning block 4 has a mounting plate fixedly connected to its top. The top of the positioning block 4 is fixedly connected to the connector 5 by screws. The bottom of the connector 5 has a mounting screw hole that mates with the positioning block 4. The front and rear sides of the steel component body 1 have mounting through holes that mate with the screw 7. The left side of the connecting arm 6 has a fixing hole that mates with the screw 7. The front and rear sides of the bottom of the positioning sleeve 2 are fixedly connected with triangular support blocks. The inner wall shape of the positioning sleeve 2 is the same as the surface shape of the steel component body 1, and the inner diameter of the positioning sleeve 2 is larger than the outer diameter of the steel component body 1. The inner wall of the positioning sleeve 2 is slidably connected to the surface of the steel component body 1. The front and rear sides of the connector 5 are fixedly connected with mounting plates 12, and the top of the mounting plates 12 has mounting holes.
[0030] The threaded column 931 is rotatable, and its threads, in conjunction with the threaded sleeve 932, adjust the height of the movable frame 91 for position adjustment of the retaining housing 92. A knob allows operators to easily rotate the threaded column 931, facilitating active adjustment of the retaining housing 92's height. The bearing seat enhances the stability of the threaded column 931 during rotation. The slide bar and groove improve the stability of the movable frame 91 during vertical movement, preventing tilting or offset. The positioning bolt 10 secures the positioning sleeve 2, allowing operators to weld it to the surface of the steel component body 1. The retaining groove enhances the stability of the retaining housing 92 in positioning the nut 8. The permanent magnet 11 can attract the positioning block 4 to achieve precise positioning and fixing of the connector 5. The screw can facilitate the disassembly or fixing of the positioning block 4 and the connector 5. The mounting through hole can facilitate the installation and fixing of the two connecting arms 6 by the screw 7. The fixing hole can further facilitate the installation and fixing of the connecting arms 6 and the connector 5. The triangular support block is used to improve the stability of the positioning sleeve 2 connection. The mounting screw hole can fix the positioning block 4. The positioning sleeve 2 can slide up and down on the surface of the steel component body 1, which is convenient for workers to adjust it to the specified height and then weld it. The mounting plate 12 and the mounting hole can facilitate the stable connection of the connector 5 to the steel beam or other steel component body 1.
[0031] During use, during assembly, the positioning sleeve 2 is first placed on the surface of the steel component body 1 and slid to the preset height. It is then temporarily fixed by the positioning bolt 10 and welded. Subsequently, the positioning block 4 is inserted into the inner cavity of the conical shell 3. Its conical surface is constrained by the conical guide groove of the conical shell 3 and automatically slides to the center. Then, the bottom is attracted and fixed by the permanent magnet 11. Next, according to the fixing hole of the connecting arm 6, the mounting through hole is opened on the surface of the steel component body 1. The screw 7 is passed through the mounting through hole and the fixing hole and the nut 8 is tightened to achieve connection. Finally, the threaded column 931 is rotated to drive the threaded sleeve 932 to move the movable frame 91 vertically upward, so that the slot at the top of the retaining shell 92 is engaged with the outer edge of the nut 8 to form a mechanical lock, preventing it from loosening and ensuring the overall reliability of the structure.
[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A steel member of irregular cross-section comprising a steel member body (1) and a connecting piece (5), characterised in that, A positioning sleeve (2) is fixedly fitted on the surface of the steel component body (1), and a conical shell (3) is fixedly connected to the right side of the positioning sleeve (2); a positioning block (4) is fixedly installed at the lower part of the connector (5) and slides with the inner cavity of the conical shell (3); a connecting arm (6) is fixedly connected to the front and rear sides of the connector (5); a screw (7) is provided in the inner cavity of the steel component body (1); a nut (8) is threaded through the connecting arm (6) on the front and rear sides of the screw (7); and a locking mechanism (9) is installed on the left side of the positioning sleeve (2). The locking mechanism (9) includes a movable frame (91), the inner wall of the movable frame (91) is slidably connected to the surface of the positioning sleeve (2), and the front and rear sides of the top of the movable frame (91) are fixedly connected to a locking case (92) that can lock the nut (8). The left side of the movable frame (91) is fixedly connected to an adjustment mechanism (93) that can slide and adjust the movable frame (91).
2. A steel member according to claim 1, wherein The adjustment mechanism (93) includes a threaded post (931) and a threaded sleeve (932) fixedly installed on the movable frame (91). The threaded post (931) is rotatably connected to the positioning sleeve (2), and the threaded post (931) is threadedly connected to the threaded sleeve (932).
3. A steel member according to claim 2, wherein A knob is fixedly connected to the bottom of the threaded column (931), and the surface of the knob is provided with anti-slip texture. The surface of the threaded column (931) is rotatably connected to the positioning sleeve (2) through a bearing seat.
4. A steel member according to claim 1, wherein The positioning sleeve (2) has a slide bar fixedly connected to the front and rear sides on the left side, and the movable frame (91) has a slide groove on the front and rear sides on the left side of the inner cavity to cooperate with the slide bar.
5. A steel member according to claim 1, wherein The front and rear sides of the positioning sleeve (2) are threaded with positioning bolts (10), and the top of the retainer (92) is provided with a groove for use with the nut (8).
6. A steel member according to claim 1, wherein A permanent magnet (11) is fixedly connected to the bottom of the inner cavity of the conical shell (3). The positioning block (4) is in the shape of a cone. A mounting plate is fixedly connected to the top of the positioning block (4). The top of the positioning block (4) is fixedly connected to the connector (5) by screws. The bottom of the connector (5) is provided with a mounting screw hole that cooperates with the positioning block (4).
7. A steel member with an irregular cross-section according to claim 1, characterized in that, The front and rear sides of the steel component body (1) are provided with mounting through holes for use with the screw (7), and the left side of the connecting arm (6) is provided with a fixing hole for use with the screw (7).
8. A steel member with an irregular cross-section according to claim 1, characterized in that, The positioning sleeve (2) has triangular support blocks fixedly connected to the front and rear sides of its bottom.
9. A steel member with an irregular cross-section according to claim 1, characterized in that, The inner wall shape of the positioning sleeve (2) is the same as the surface shape of the steel component body (1), and the inner diameter of the positioning sleeve (2) is larger than the outer diameter of the steel component body (1). The inner wall of the positioning sleeve (2) is slidably connected to the surface of the steel component body (1).
10. A steel member with an irregular cross-section according to claim 1, characterized in that, The front and rear sides of the connector (5) are fixedly connected with mounting plates (12), and the top of the mounting plate (12) is provided with mounting holes.