Z-shaped steel component convenient for butt joint assembly

By designing Z-shaped steel connectors, the inclined surfaces of the plug plate and connecting slot are combined with the bolt tightening force to achieve a fast and stable connection of Z-shaped steel components. This solves the problems of low construction efficiency and poor connection accuracy in traditional connection methods, and improves construction efficiency and connection stability.

CN224300158UActive Publication Date: 2026-05-29SHANDONG HUAJIAN HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HUAJIAN HEAVY IND CO LTD
Filing Date
2025-07-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional Z-shaped steel components suffer from low construction efficiency, poor connection accuracy, and high cost during the butt joint assembly process. In particular, welding and bolted connections present unstable quality and safety hazards.

Method used

Z-shaped steel connectors are used, including a main body and a plug plate. Quick and stable connection is achieved through connecting slots and connecting bolts. The main body fits into the web and flange of the Z-shaped steel component, and the reinforcing ribs are used to improve the structural strength. The inclined surface of the plug plate and the tightening force of the bolts are used to push the components together.

Benefits of technology

It enables rapid and stable connection of Z-shaped steel components, improves construction efficiency, reduces costs, and enhances the stability and safety of the connection.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224300158U_ABST
    Figure CN224300158U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of steel component technology, specifically relating to a Z-shaped steel component that facilitates docking and assembly. It includes a Z-shaped steel component and a Z-shaped steel connector. The Z-shaped steel connector includes a main body with slots on both sides and downwardly bent to form insertion plates. Connecting slots are formed at both ends of the web of the Z-shaped steel component, and the insertion plates are fitted into these slots. The top of the main body is connected to the top flange of the Z-shaped steel component via connecting bolts. During the tightening of the connecting bolts, one inclined surface of the insertion plate presses tightly against the inner top surface of the connecting slot, achieving a quick and stable connection between the Z-shaped steel component and the Z-shaped steel connector. Combined with the supporting function of the main body itself, this achieves a quick and stable positioning connection between two Z-shaped steel components. Furthermore, the Z-shaped steel connector and connecting slots are simple to process, enabling the connection of two Z-shaped steel components at a relatively low cost.
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Description

Technical Field

[0001] This utility model belongs to the field of steel component technology, specifically relating to a Z-shaped steel component that is easy to assemble. Background Technology

[0002] Z-shaped steel, as a highly efficient cold-formed thin-walled steel section, is widely used in construction, bridges, and machinery manufacturing. Its unique Z-shaped cross-section provides excellent bending resistance and space utilization, making it commonly used in structural components such as purlins, wall beams, and joists. However, traditional Z-shaped steel components suffer from the following problems during butt joint assembly:

[0003] In the field of building construction, traditional Z-shaped steel often requires connection end to end, mainly relying on welding or direct bolt connection. However, both methods have obvious drawbacks. Although welding can provide high strength, on-site welding operations are greatly affected by the environment. For example, it is difficult to guarantee welding quality in rainy weather or when working at heights. In addition, the welding process is time-consuming, increasing labor costs. Furthermore, the thermal stress generated by welding can easily cause component deformation, affecting the overall structural accuracy.

[0004] While direct bolted connections avoid welding defects, traditional bolted connections require pre-drilling numerous bolt holes in the component, demanding extremely high precision in hole positioning. In actual construction, due to machining errors or installation deviations, bolt hole misalignment frequently occurs, necessitating repeated adjustments or even re-drilling, severely impacting construction progress. Furthermore, the shear resistance of bolted connections depends on the number of bolts and the preload; they are prone to loosening under dynamic loads, posing safety hazards. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a Z-shaped steel component that is easy to assemble, thereby solving the problems of low construction efficiency, poor connection accuracy, and high cost associated with the direct welding or bolt connection used in the existing traditional Z-shaped steel component assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a Z-shaped steel component that is easy to assemble, comprising a Z-shaped steel component and a Z-shaped steel connector. The Z-shaped steel connector includes a main body, both sides of which are slotted and bent downward to form insert plates. The web of the Z-shaped steel component has connecting slots at both ends, and the insert plates are fitted into the connecting slots. The top of the main body is connected to the flange of the top of the Z-shaped steel component by connecting bolts.

[0007] The beneficial effects of this utility model are as follows: during the tightening of the connecting bolts, one side of the inclined surface of the plug plate presses tightly against the inner top surface of the connecting slot, realizing a quick and stable connection between the Z-shaped steel component and the Z-shaped steel connector. Combined with the supporting role of the main body itself, it realizes a quick and stable positioning connection between the two Z-shaped steel components. Moreover, the Z-shaped steel connector and the connecting slot are simple to process, and the connection between the two Z-shaped steel components can be realized at a low cost.

[0008] To further improve the support stability of the Z-shaped steel connector at the connection between two Z-shaped steel components;

[0009] As a further improvement to the above technical solution: the main body is an angle iron structure, one side flange of the main body is attached to the web of the Z-shaped steel member, and the other side flange of the main body is attached to the upper flange of the Z-shaped steel member.

[0010] The beneficial effects of this improvement are: with the tightening of the connecting bolts and the support of the plug plate, the Z-shaped steel connector is stably and closely connected to the web and flange of the Z-shaped steel member, thereby ensuring the accuracy of the docking position of the two Z-shaped steel members and providing solid support for the connection of the two Z-shaped steel members.

[0011] To further improve the support strength of the motherboard;

[0012] As a further improvement to the above technical solution: a reinforcing rib is welded between the two flanges of the main body, and the reinforcing rib is disposed between the two rows of plug-in plates.

[0013] The beneficial effect of this improvement is that strengthening the ribs can effectively improve the structural strength of the main body.

[0014] In order to bring the end faces of the two Z-shaped steel components closer together to achieve rapid assembly of the Z-shaped steel components;

[0015] As a further improvement to the above technical solution: the connecting slot is a regular hexagonal slot structure.

[0016] The beneficial effects of this improvement are as follows: after the plug plate is inserted into the connecting slot, as the connecting bolts are tightened, the plug plate moves towards the top of the connecting slot along the gradually tapering inner wall of the connecting slot, thereby pushing the two connecting slots to move towards each other, realizing the rapid assembly of Z-shaped steel components.

[0017] To further improve the structural strength of Z-shaped steel connectors;

[0018] As a further improvement to the above technical solution: the plug-in plate has a V-shaped plate structure.

[0019] The beneficial effects of this improvement are: the V-shaped plate structure can provide higher support strength compared to the flat plate, effectively ensuring the stability of the Z-shaped steel component connection.

[0020] To further improve the strength of the connection between the Z-shaped steel connector and the Z-shaped steel component;

[0021] As a further improvement to the above technical solution: the number of plug-in boards in both columns is multiple.

[0022] The beneficial effects of this improvement are: after the multiple connecting slots and the plug plate are stably engaged, the connection strength between the Z-shaped steel component and the Z-shaped steel connector can be effectively guaranteed.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0026] Figure 3 This is a structural schematic diagram of the Z-shaped steel component in this utility model;

[0027] Figure 4 This is a schematic diagram of the Z-shaped steel connector in this utility model. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the Z-shaped steel connector in this utility model. Figure 2 ;

[0029] In the diagram: 1. Z-shaped steel component; 11. Connecting slot; 2. Z-shaped steel connector; 21. Main body; 22. Insert plate; 23. Reinforcing rib; 3. Connecting bolt. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way. Example 1:

[0031] like Figure 1As shown in Figure 5: A Z-shaped steel component that is easy to assemble includes a Z-shaped steel component 1 and a Z-shaped steel connector 2. The Z-shaped steel connector 2 includes a main body 21. Both sides of the main body 21 are slotted and bent downward to form insertion plates 22. The web of the Z-shaped steel component 1 has connection slots 11 at both ends. The insertion plates 22 are fitted into the connection slots 11. The top of the main body 21 is connected to the top flange of the Z-shaped steel component 1 by connecting bolts 3. During the tightening of the connecting bolts 3, one inclined side of the insertion plate 22 abuts against the connection slot 1. On the inner top surface of 1, a quick and stable connection between the Z-shaped steel component 1 and the Z-shaped steel connector 2 is achieved. Combined with the supporting function of the main body 21 itself, a quick and stable positioning connection of the two Z-shaped steel components 1 is achieved. Furthermore, the Z-shaped steel connector 2 and the connecting slot 11 are simple to process, enabling the connection of the two Z-shaped steel components 1 at a relatively low cost. The main body 21 has an angle iron structure; one flange of the main body 21 is attached to the web of the Z-shaped steel component 1, and the other flange of the main body 21 is attached to the upper flange of the Z-shaped steel component 1. The Z-shaped steel connector 2 connects... With the fastening of bolt 3 and the support of plug-in plate 22, it is stably connected to the web and flange of Z-shaped steel member 1, thereby ensuring the accuracy of the docking position of the two Z-shaped steel members 1 and providing stable support for the connection of the two Z-shaped steel members 1. A reinforcing rib 23 is welded between the two flanges of the main body 21. The reinforcing rib 23 is arranged between the two rows of plug-in plates 22. The reinforcing rib 23 can effectively improve the structural strength of the main body 21. The connecting slot 11 is a regular hexagonal slot structure. After the plug-in plate 22 is inserted into the connecting slot 11, it is connected with the connecting plate 22. Tightening bolt 3 causes the plug plate 22 to move towards the top of the connecting slot 11 along the gradually tapering inner wall of the connecting slot 11, thereby pushing the two connecting slots 11 to move towards each other, realizing the rapid assembly of the Z-shaped steel component 1. The plug plate 22 is a V-shaped plate structure, which can provide higher support strength than a flat plate, effectively ensuring the stability of the connection of the Z-shaped steel component 1. There are multiple plug plates 22 in both rows. After the multiple connecting slots 11 are stably engaged with the plug plate 22, the connection strength between the Z-shaped steel component 1 and the Z-shaped steel connector 2 can be effectively guaranteed.

[0032] The working principle of this technical solution is as follows: Place the two Z-shaped steel components 1 that need to be assembled in the predetermined position, so that their end faces are facing each other. Adjust the height and level of the two Z-shaped steel components 1 so that their webs are on the same plane and their flange heights are consistent. Shims or supports can be used for fine-tuning to ensure the assembly accuracy. Fit one side flange of the main body 21 of the Z-shaped steel connector 2 to the web of the two Z-shaped steel components 1. Align the plug plates 22 on both sides of the main body 21 with the connecting slots 11 on the web of the Z-shaped steel components 1. Use a wrench to pass the connecting bolts 3 through the reserved holes at the top of the main body 21 and the Z-shaped steel components 1. The corresponding hole on the flange at the top of component 1 is then tightened. During the tightening of the connecting bolt 3, as the nut gradually tightens, the plug plate 22 will move along the gradually tapering inclined inner wall of the connecting slot 11 toward the top of the connecting slot 11. Since one side of the plug plate 22 is pressed against the inner top surface of the connecting slot 11, this movement will generate a horizontal component force, pushing the two Z-shaped steel components 1 to move towards each other, so that their end faces gradually pull closer and fit together. Continue to tighten the connecting bolt 3 until the specified preload is reached, ensuring that the connection between the Z-shaped steel connector 2 and the Z-shaped steel component 1 is firm and reliable.

[0033] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A Z-shaped steel component that is easy to assemble, characterized in that: The device includes a Z-shaped steel component (1) and a Z-shaped steel connector (2). The Z-shaped steel connector (2) includes a main body (21). Both sides of the main body (21) are slotted and bent downward to form a plug-in plate (22). The web of the Z-shaped steel component (1) has connecting slots (11) at both ends. The plug-in plate (22) is fitted into the connecting slot (11). The top of the main body (21) is connected to the flange of the top of the Z-shaped steel component (1) by connecting bolts (3).

2. The Z-shaped steel component for easy butt joint assembly according to claim 1, characterized in that: The main body (21) is an angle iron structure. One side flange of the main body (21) is attached to the web of the Z-shaped steel member (1), and the other side flange of the main body (21) is attached to the upper flange of the Z-shaped steel member (1).

3. A Z-shaped steel component that is easy to assemble by butt joint according to claim 1, characterized in that: A reinforcing rib (23) is welded between the two flanges of the main body (21), and the reinforcing rib (23) is disposed between the two rows of plug-in plates (22).

4. A Z-shaped steel component that is easy to assemble by butt joint according to claim 1, characterized in that: The connecting slot (11) is a regular hexagonal slot structure.

5. A Z-shaped steel component that is easy to assemble by butt joint according to claim 1, characterized in that: The plug-in plate (22) has a V-shaped plate structure.

6. A Z-shaped steel component for easy butt-joint assembly according to claim 1, characterized in that: The number of plug-in boards (22) in both columns is multiple.