Light steel wall connecting piece

By using L-shaped connectors and screws to connect the light steel keel, the problems of material damage and connection uncertainty caused by self-tapping screws are solved, achieving a high-strength and stable light steel keel connection that is suitable for various connection scenarios.

CN224002157UActive Publication Date: 2026-03-17XIAMEN DAHE PEB CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional self-tapping screws can easily damage materials when connecting light steel keels. The connection quality depends on the skill of the construction workers and there is a risk of improper insertion, which can affect the strength of the keel.

Method used

The first and second connectors adopt an L-shaped structure and are equipped with connecting screws. The screw connection is achieved by pre-drilling holes in the light steel keel and using the connecting through holes and tension holes. Combined with bending reinforcing ribs and washers, the connection is ensured to be accurate and does not damage the material.

Benefits of technology

It offers higher tensile and shear strength, simple connection operation, avoids material damage, ensures the strength of light steel keel structure, and is suitable for various connection methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building connecting pieces, and discloses a light steel wall connecting piece which comprises a first connecting piece, a second connecting piece and a connecting screw, and the first connecting piece and the second connecting piece are both of an L-shaped structure; the transverse end and the vertical end of the first connecting piece are each provided with a connecting through hole, and the hole diameter of each connecting through hole is matched with the corresponding connecting screw. The transverse end and the vertical end of the second connecting piece are each provided with a stretching hole site with a threaded structure inside, the threaded structure of each stretching hole site is matched with the threaded structure of the connecting screw, and the stretching hole sites on the two sides vertically extend along the inner sides of the ends of the corresponding sides of the second connecting piece. The connecting screw movably penetrates through the connecting through hole and is in threaded connection with the stretching hole site; the first connecting piece, the second connecting piece and the connecting screw are arranged, traditional self-tapping screw connection is replaced with screw connection, and the light steel keel has the advantages that connection is firm, materials cannot be damaged in the connecting process, and the strength of the light steel keel is guaranteed.
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Description

Technical Field

[0001] This utility model relates to a light steel wall connector, belonging to the technical field of building connectors. Background Technology

[0002] Light steel frame walls are a building wall system that uses light steel keels as a framework and is covered with gypsum board or other decorative materials. This wall structure is increasingly popular in modern architecture due to its lightweight, quick construction, and environmental friendliness. Light steel frame walls are composed of multiple light steel keels connected together. When adjacent light steel frame walls need to be connected, corresponding connectors are usually used to connect the light steel keels at specific locations. Currently, self-tapping screws are the most common connectors used for connecting light steel keels. Self-tapping screws provide a quick and secure connection and are well-suited for connecting light steel keels. However, the use of self-tapping screws has the following problems:

[0003] 1. The process of driving in self-tapping screws can cause localized damage to the light steel keel, especially when the screws are driven into the wrong position, which may reduce the strength of the keel.

[0004] 2. The connection quality of self-tapping screws largely depends on the skills and experience of the installers. Improper operation (such as excessive or insufficient nailing force) can easily lead to an unstable connection or damage to the materials. Utility Model Content

[0005] In order to solve the above-mentioned problems existing in the prior art, this utility model provides a light steel wall connector.

[0006] The technical solution of this utility model is as follows:

[0007] A lightweight steel wall connector includes a first connector, a second connector, and a connecting screw. Both the first and second connectors are L-shaped. The first connector has connecting through holes with diameters adapted to the connecting screws at both its horizontal and vertical ends. The second connector has threaded holes at both its horizontal and vertical ends, with the thread structure of each threaded hole adapted to the thread structure of the connecting screw. The threaded holes on both sides extend vertically along the inner side of the corresponding end of the second connector. The connecting screw moves through the connecting through holes and is threaded into the threaded holes.

[0008] The first connector has a first bending reinforcing rib at both the horizontal and vertical edges. The first bending reinforcing ribs on both sides extend along the inner side of the corresponding side end of the first connector, and the ends of the first bending reinforcing ribs on the same side that are close to each other are also fitted together.

[0009] Each of the first bent reinforcing ribs has an arched shape at the middle.

[0010] The second connector has a second bending reinforcing rib on both sides of its horizontal and vertical ends. The second bending reinforcing ribs on both sides extend along the inner side of the corresponding side end of the second connector, and the ends of the second bending reinforcing ribs on the same side that are close to each other are also fitted together.

[0011] In this configuration, the middle part of each of the second bending reinforcing ribs is arched.

[0012] The connecting screws are also fitted with flat washers and spring washers.

[0013] This utility model has the following beneficial effects:

[0014] This utility model, by setting a first connector, a second connector, and connecting screws, allows for connection of adjacent light steel walls. First, connection holes are drilled in the corresponding light steel keels. Then, the first and second connectors are placed into the adjacent light steel keels. Since the light steel keel structure is C-shaped, the first and second connectors are generally placed in pairs. The first connector is placed in one light steel keel, and the second connector is placed in the other. After aligning the connecting through holes and tension holes with the drilled connection holes, the screws are then inserted into the connecting through holes and the connection holes on the light steel keels. Connecting screws are inserted into the tension holes. By connecting the first and second connecting parts, the adjacent light steel keels can be connected together, thus completing the connection of adjacent light steel walls. Compared with traditional self-tapping screw connections, screw connections can provide higher tensile and shear strength, and the connection operation is easy. It will not damage the material during the connection process. Pre-drilling holes can ensure the accuracy of the screw insertion position and avoid uncertainty and deviation when the screw is driven in. This ensures that the light steel keel has sufficient structural strength and has the advantages of firm connection, no damage to the material during the connection process, and ensuring the strength of the light steel keel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first connecting member in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second connecting member in this utility model;

[0018] Figure 4 This is a first usage diagram of the present invention in actual use;

[0019] Figure 5 This is a second usage diagram of the present invention in actual use;

[0020] Figure 6 This is a third usage diagram of the present invention in actual use;

[0021] Figure 7 This is a fourth usage diagram of the present invention in actual use;

[0022] Figure 8 This is a magnified view of point A.

[0023] The reference numerals in the figure are as follows:

[0024] 1. First connector; 2. Second connector; 3. Connecting screw; 4. Connecting through hole; 5. Tension hole; 6. First bending reinforcement; 7. Second bending reinforcement; 8. Flat washer; 9. Spring washer; a. Wall structure; b. Wall light steel keel; c. Floor structure; d. Floor light steel keel. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] Example: Please refer to Figures 1-8 This embodiment provides a light steel wall connector, including a first connector 1, a second connector 2, and a connecting screw 3. Both the first connector 1 and the second connector 2 are L-shaped. The first connector 1 has connecting through holes 4 at both its horizontal and vertical ends, with diameters adapted to the connecting screw 3, allowing the connecting screw 3 to pass through the connecting through holes 4. The second connector 2 has threaded holes 5 at both its horizontal and vertical ends. The threaded holes 5 are manufactured using a common punching and drawing method in the prior art. The thread structure of each threaded hole 5 is adapted to the thread structure of the connecting screw 3, allowing the connecting screw 3 to be threadedly connected to the threaded hole 5. The threaded holes 5 on both sides extend vertically along the inner side of the corresponding end of the second connector 2 to facilitate subsequent connection. The connecting screw 3 moves through the connecting through holes 4 and is threaded into the corresponding threaded holes 5 to connect the first connector 1 and the second connector 2 together.

[0027] In this embodiment, the number of connecting through holes 4 on the first connector 1 is adapted to the number of tension holes 5 on the second connector 2, so as to facilitate the subsequent connection between light steel walls with various different layouts. Specifically, one connecting through hole 4 is provided on both the horizontal and vertical ends of the first connector 1, and one tension hole 5 is also provided on both the horizontal and vertical ends of the second connector.

[0028] To minimize deformation of the first connector 1, in this embodiment, first bent reinforcing ribs 6 are provided on both sides of the horizontal and vertical ends of the first connector 1. The first bent reinforcing ribs 6 on both sides extend inward along the corresponding side end of the first connector 1, and the ends of the first bent reinforcing ribs 6 on the same side are also fitted together. The middle of each first bent reinforcing rib 6 is also arched. The provision of the first bent reinforcing ribs 6 effectively disperses stress and reduces stress concentration, thereby improving the overall strength, rigidity, and fatigue resistance of the first connector 1. Furthermore, the arched middle portion of the first bent reinforcing rib 6 is less prone to cracking or deformation compared to a straight edge, thus effectively preventing deformation of the first connector 1.

[0029] To minimize deformation of the second connector 2, in this embodiment, second bent reinforcing ribs 7 are provided on both sides of the transverse and vertical ends of the second connector 2. These second bent reinforcing ribs 7 extend inward along the corresponding side ends of the second connector 2, and their adjacent ends are fitted together. Each second bent reinforcing rib 7 also has an arched center. The inclusion of these second bent reinforcing ribs 7 effectively disperses stress and reduces stress concentration, thereby improving the overall strength, rigidity, and fatigue resistance of the second connector 2. Furthermore, the arched center of the second bent reinforcing rib 7 is less prone to cracking or deformation compared to a straight edge, thus effectively preventing deformation of the second connector 2.

[0030] To prevent the connecting screw 3 from loosening during use, in this embodiment, a flat washer 8 and a spring washer 9 are also fitted onto the connecting screw 3. The flat washer 8 and the spring washer 9 can prevent the connecting screw 3 from loosening after it is tightened.

[0031] In practical use, this embodiment can be applied in four ways: a straight-line connection between adjacent wall structures m; a T-shaped connection between adjacent wall structures m; a cross-shaped connection between adjacent wall structures m; and a connection between wall structure m and floor slab structure n. Regardless of the application, before making the connection, the positions of the wall light steel keel b and floor light steel keel d to be connected should be determined, and the required connection holes should be drilled on the corresponding wall light steel keel b and floor light steel keel d. Afterward, the corresponding connection work can be carried out.

[0032] When connecting adjacent wall structures m in a straight line, the first connector 1 and the second connector 2 are placed into the light steel keel b of the wall to be connected. Since the structure of the light steel keel b is C-shaped, the first connector 1 and the second connector 2 are placed in pairs to ensure two connection points. Specifically, the first connector 1 is placed into one light steel keel b, and the second connector 2 is placed into the other light steel keel b. The paired first connector 1 and the paired second connector 2 will form a C-shaped structure within the corresponding light steel keel b to adapt to its structure. After aligning the connecting through hole 4 and the tension hole 5 with the connecting holes drilled on the corresponding wall light steel keel b, the connecting screw 3 is inserted into the connecting through hole 4, the connecting hole on the wall light steel keel b, and the tension hole 5, and the flat washer 8 and the spring washer 9 are fitted onto the connecting screw 3. This connects the first connecting piece 1 and the second connecting piece 2 at the corresponding positions, thus connecting the corresponding wall light steel keel b and achieving a straight-line connection of the adjacent wall structure m.

[0033] When making a T-shaped connection between adjacent wall structures m, the first connector 1 and the second connector 2 are placed into the light steel keel b of the wall to be connected, and they are also placed in pairs into the light steel keel b. Then, the connecting through hole 4 and the tension hole 5 are aligned with the connecting holes drilled on the corresponding light steel keel b. Then, the connecting screw 3 is inserted into the connecting through hole 4, the connecting hole on the light steel keel b, and the tension hole 5. The flat washer 8 and the spring washer 9 are put on the connecting screw 3. The first connector 1 and the second connector 2 at the corresponding positions can be connected together, and the corresponding light steel keel b can be connected, thereby realizing the T-shaped connection of the adjacent wall structures m.

[0034] When making a cross-shaped connection between adjacent wall structures m, the first connector 1 and the second connector 2 are placed into the light steel keel b of the wall to be connected, and they are also placed in pairs into the light steel keel b. However, it should be noted that since it is a cross-shaped connection, it involves three wall structures m. Therefore, when placing the first connector 1 and the second connector 2, the second connector 2 should be placed in the corresponding light steel keel b in the middle wall structure m, while the first connector 1 should be placed in the two side wall structures m. In the corresponding wall light steel keel b in the wall structure m, after aligning the connecting through hole 4 and the tension hole 5 with the connecting hole drilled on the corresponding wall light steel keel b, by inserting the connecting screw 3 into the connecting through hole 4, the connecting hole on the wall light steel keel b and the tension hole 5 and fitting the flat washer 8 and the spring washer 9 on the connecting screw 3, the first connecting piece 1 and the second connecting piece 2 at the corresponding position can be connected together, that is, the corresponding wall light steel keel b can be connected, thereby realizing the cross-shaped connection of the adjacent wall structure m.

[0035] When connecting the wall structure m and the floor slab structure n, the first connector 1 is not required. First, adjust the position of the floor slab structure n so that the connecting holes on the floor slab light steel keel d are aligned with the connecting holes on the wall light steel keel b. Then, place the second connector 2 into the wall light steel keel b, aligning the tension hole 5 with the corresponding connecting hole on the wall light steel keel b. Then, insert the connecting screw 3 into the floor slab light steel keel d, the wall light steel keel b, and the tension hole 5, and fit the flat washer 8 and the spring washer 9 onto the connecting screw 3. This connects the second connector 2 to the floor slab light steel keel d, thus connecting the wall light steel keel b to the floor light steel keel d, thereby achieving the connection between the wall structure m and the floor slab structure n.

[0036] This invention replaces the traditional self-tapping screw connection with a connecting screw 3. The screw connection provides higher tensile and shear strength, and the connection operation is simple. It does not damage the material during the connection process. The pre-drilled hole ensures the accuracy of the insertion position and avoids the uncertainty and deviation when the self-tapping screw is driven in, so as to ensure that the light steel keel used has sufficient structural strength. At the same time, by placing the first connecting member 1 and the second connecting member 2 in the corresponding positions and adopting a specific connection form, this invention can adapt to a variety of usage scenarios and has the advantage of good applicability.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A light gauge steel wall tie, characterised in that: The utility model relates to a first connecting piece (1), a second connecting piece (2) and a connecting screw (3), the first connecting piece (1) and the second connecting piece (2) are both L type structure settings; The horizontal end and the vertical end of the first connecting piece (1) are both provided with a connecting through hole (4) with a hole diameter being adapted to the connecting screw (3); The horizontal end and the vertical end of the second connecting piece (2) are both provided with a stretch hole (5) with a threaded structure inside, the threaded structure of each stretch hole (5) is adapted to the threaded structure of the connecting screw (3), and the two stretch holes (5) are vertically extended along the inner side of the corresponding side end of the second connecting piece (2); The connecting screw (3) is movably threaded through the connecting through hole (4) and the stretch hole (5).

2. A light gauge steel wall tie according to claim 1, characterised in that: The horizontal end and the vertical end of the first connecting piece (1) are both provided with a first bending reinforcing rib (6) at the side edge position, the two first bending reinforcing ribs (6) are both extended along the inner side of the corresponding side end of the first connecting piece (1), and the end parts of the first bending reinforcing ribs (6) on the same side are close to each other.

3. A light gauge steel wall connector according to claim 2, wherein: The middle part of each first bending reinforcing rib (6) is arched.

4. A light gauge steel wall tie according to claim 1, wherein: The horizontal end and the vertical end of the second connecting piece (2) are both provided with a second bending reinforcing rib (7) at the side edge position, the two second bending reinforcing ribs (7) are both extended along the inner side of the corresponding side end of the second connecting piece (2), and the end parts of the second bending reinforcing ribs (7) on the same side are close to each other.

5. A light gauge steel wall tie according to claim 4, wherein: The middle part of each second bending reinforcing rib (7) is arched.

6. A light gauge steel wall tie according to claim 1, wherein: The connecting screw (3) is further provided with a flat gasket (8) and a spring gasket (9).