A cantilevered I-beam clamping ring wooden wedge fastening fixture

The cantilevered I-beam clamping ring and wooden wedge fastening clamp, designed with a combination of clamps and baffles, solves the problem of traditional wooden wedges failing to tighten sufficiently, achieving fast, safe and reliable fixing of cantilevered I-beams, and is suitable for building construction.

CN224338592UActive Publication Date: 2026-06-09THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date
2025-04-01
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional wooden wedges fail to provide sufficient tightening in cantilevered I-beams, resulting in lengthy and difficult construction and maintenance processes, as well as safety risks.

Method used

It adopts a combination design of clamps, baffles and retaining rings, and forms a two-way limiting structure through U-bolts and triangular reinforcing plates. The retaining rings are mechanically fastened to the I-beams, replacing the traditional cement nail fixation.

Benefits of technology

It achieves a reliable connection between the retaining ring and the I-beam, preventing loosening and falling off, simplifying the construction process, improving efficiency, ensuring safety and reliability, and allowing for reuse.

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Abstract

A cantilevered I-beam clamping ring wooden wedge fastening fixture, comprising a fixture, a baffle and a clamping ring; the fixture is U-shaped and horizontally arranged on the top of the I-beam; the horizontal edges of the fixture are respectively beyond the two sides of the I-beam; the clamping ring is U-shaped, the vertical edges of the clamping ring are respectively arranged on the two sides of the I-beam, and the horizontal edge of the clamping ring is arranged above the I-beam; the vertical edges of the clamping ring are respectively connected with the vertical edges of the fixture, and the lower ends of the vertical edges of the clamping ring are anchored in the floor; a top wedge is arranged between the horizontal edge of the clamping ring and the top surface of the I-beam, and the end surface of the top wedge is abutted against the horizontal edge of the fixture; the baffle has two pieces and is arranged at the bottom of the horizontal edges of the fixture; a side wedge is arranged between the vertical edges of the clamping ring and the web of the I-beam; and the end surface of the side wedge is abutted against the baffle. The utility model solves the technical problems that the traditional wooden wedge cannot be fully wedged, has a long time, a long maintenance time, a great maintenance difficulty and a safety risk of being artificially removed.
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Description

Technical Field

[0001] This utility model belongs to the field of construction engineering technology, and in particular to a cantilevered I-beam clamping ring and wooden wedge fastening device. Background Technology

[0002] Cantilevered scaffolding and cantilevered unloading platforms are widely used in the traditional construction industry as an important measure for external scaffolding and unloading platforms. Both cantilevered scaffolding and cantilevered unloading platforms achieve the force-bearing of the anchoring section through I-beams and pre-embedded clamps. Wooden wedges are required between the clamps and the I-beams to wed the top surface and two sides tightly to ensure that the anchoring end meets the force-bearing and safety requirements. The traditional method is to fix it with cement nails after wedging the wooden wedges tightly.

[0003] The disadvantages of the existing publicly available technology are: the wooden wedges are not sufficiently tightened due to mismatched modules or perceived operational defects, and the wooden wedges need to be tightened after the I-beams are installed and removed when the cantilevered scaffolding or cantilevered unloading platform is dismantled. This results in a long period of time, long maintenance time during construction, great maintenance difficulties, and easy removal for other uses, which increases the difficulty of inspection and maintenance, as well as the safety risks caused by falling off or being removed during this period. Utility Model Content

[0004] The purpose of this utility model is to provide a cantilevered I-beam retaining ring and wooden wedge fastening device to solve the technical problems of traditional wooden wedges that fail to tighten sufficiently, have long durations of use, require long maintenance times, are difficult to maintain, and are easily removed by humans, posing a safety risk.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A cantilevered I-beam clamping device with wooden wedges is used to fix a cantilevered I-beam. It includes a clamp, baffles, and a clamping ring. The clamp is U-shaped and horizontally positioned at the top of the I-beam, with its horizontal side extending along the width of the I-beam. Both ends of the horizontal side of the clamp extend beyond the sides of the I-beam. The clamping ring is U-shaped, with its two vertical sides located on either side of the I-beam and its horizontal side above the I-beam. The two vertical sides of the clamp are connected to the two longitudinal sides of the clamp, and the lower ends of the two vertical sides of the clamp are anchored in the floor slab. A top wedge is provided between the horizontal side of the clamp and the top surface of the I-beam, with its end face abutting against the horizontal side of the clamp. Two baffles are provided at the bottom of both ends of the horizontal side of the clamp. Side wedges are provided between the two vertical sides of the clamp and the web of the I-beam, with their end faces abutting against the baffles.

[0007] Preferably, the I-beam is placed on the floor slab, and one end of the I-beam extends beyond the outer edge of the floor slab.

[0008] Preferably, the clamp is made of flat steel; the length of the two ends of the horizontal side of the clamp that extend beyond the two sides of the I-beam is not less than 50mm; the length of the two longitudinal sides of the clamp is not less than 300mm.

[0009] Preferably, the two vertical sides of the retaining ring are located inside the two longitudinal sides of the clamp, and the vertical sides of the retaining ring and the longitudinal sides of the clamp are fixed together by U-bolts.

[0010] Preferably, two holes are provided on the longitudinal edges of both sides of the clamp near the end position; the distance between the two holes on each longitudinal edge is 50mm~60mm; the U-bolt is clamped on the vertical edge of the retaining ring, and the two ends of the U-bolt are respectively inserted into the two holes.

[0011] Preferably, the baffle is made of flat steel and welded to the clamp; the length of the baffle is no more than 150mm.

[0012] Preferably, a reinforcing plate is provided between the baffle and the longitudinal edge of the clamp; the reinforcing plate is triangular and is welded to the longitudinal edge of the clamp and the baffle respectively.

[0013] Compared with the prior art, the present invention has the following features and beneficial effects.

[0014] 1. This utility model uses a wooden wedge clamp to passively fix the wooden wedge and the retaining ring, ensuring that the gap between the retaining ring and the I-beam is full and secure, and not easily damaged. At the same time, this utility model does not damage or affect the structure during use, the connection is reliable, and the construction is simple and fast, improving construction efficiency and realizing green and low-carbon construction.

[0015] 2. The clamp and retaining ring of this utility model are connected and fixed, avoiding problems such as manual removal of wooden wedges or automatic detachment. It can be used permanently after one installation. It can be removed at the same time when the I-beam needs to be removed. It can also be reused. It is safe, reliable, simple and practical.

[0016] 3. This utility model utilizes a combination design of a U-shaped clamp and a baffle. The top wedge end abuts against the horizontal edge of the clamp, while the side wedge end abuts against the baffle, forming a bidirectional limiting structure. This mechanical limiting method is more reliable than traditional cement nail fixing, effectively preventing the wooden wedge from shifting due to vibration or external force, enhancing the wedge fixing effect, and preventing loosening and falling off. Simultaneously, the triangular reinforcing plate welded to the baffle and clamp further enhances shear resistance, ensuring the wedge remains compressed for a long time. Furthermore, this utility model uses mechanical fastening instead of traditional cement nails, eliminating the possibility of the wooden wedge being arbitrarily removed. The welded structure of the baffle and reinforcing plate forms a physical barrier, preventing both human damage and the problem of decay and failure of the wooden wedge due to long-term exposure. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 This is a structural schematic diagram of the snap ring wooden wedge fastening device of this utility model.

[0019] Figure 2 This is a schematic diagram of the fixture in this utility model.

[0020] Attached reference numerals: 2-clamp, 3-baffle, 4-ring, 7-U-bolt, 8-hole, 9-reinforcing plate. Detailed Implementation

[0021] like Figure 1-2 As shown, this type of cantilevered I-beam clamping ring and wooden wedge fastening device is used to fix a cantilevered I-beam; it includes a clamp 2, a baffle 3, and a clamp 4; the clamp 2 is U-shaped and horizontally set at the top of the I-beam, with its horizontal side extending along the width of the I-beam; the two ends of the horizontal side of the clamp 2 extend beyond both sides of the I-beam; the clamp 4 is U-shaped, with its two vertical sides located on both sides of the I-beam, and its horizontal side located on the I-beam. Above; the two vertical sides of the retaining ring 4 are respectively connected to the two longitudinal sides of the clamp 2, and the lower ends of the two vertical sides of the retaining ring 4 are anchored in the floor slab; a top wedge is provided between the horizontal side of the retaining ring 4 and the top surface of the I-beam, and the end face of the top wedge abuts against the horizontal side of the clamp 2; there are two baffles 3, which are respectively provided at the bottom of both ends of the horizontal side of the clamp 2; side wedges are provided between the two vertical sides of the retaining ring 4 and the web of the I-beam; the end face of the side wedge abuts against the baffle 3.

[0022] In this embodiment, the I-beam is placed on the floor slab, and one end of the I-beam extends beyond the outer edge of the floor slab.

[0023] In this embodiment, the clamp 2 is made of flat steel with a width of 50mm and a thickness of 5mm; the length of the two ends of the horizontal side of the clamp 2 that extend beyond the two sides of the I-beam is not less than 50mm; the length of the two longitudinal sides of the clamp 2 is not less than 300mm.

[0024] In this embodiment, the two vertical sides of the retaining ring 4 are located inside the two longitudinal sides of the clamp 2, and the vertical sides of the retaining ring 4 and the longitudinal sides of the clamp 2 are fixed together by U-bolts 7.

[0025] In this embodiment, two holes 8 are respectively opened on the longitudinal edges of both sides of the clamp 2 near the end position; the distance between the two holes 8 on each longitudinal edge is 50mm~60mm; the U-bolt 7 is clamped on the vertical edge of the retaining ring 4, and the two ends of the U-bolt 7 are respectively inserted into the two holes 8, the diameter of the holes 8 is 8mm. The holes are opened at positions of 200mm and 250mm in length of the longitudinal edge of the clamp 2.

[0026] In this embodiment, the baffle 3 is made of flat steel and is welded to the clamp 2; the width of the flat steel is 50mm, the thickness is 5mm, and the length of the baffle 3 is no more than 150mm.

[0027] In this embodiment, a reinforcing plate 9 is provided between the baffle 3 and the longitudinal edge of the clamp 2; the reinforcing plate 9 is triangular and is welded to the longitudinal edge of the clamp 2 and the baffle 3 respectively. The triangular connecting plate serves as a reinforcement.

[0028] In this embodiment, after the C-shaped clamp 2 is manufactured, the two side baffles 3 are welded to the clamp 2. After the baffles 3 and clamp 2 are connected, the reinforcing plate 9 is welded to the clamp 2 and the baffles 3, and the reinforcing plate 9 serves to strengthen the clamp.

[0029] In this embodiment, after the I-beam is installed, the timber is cut into wooden wedges that match the gap between the retaining ring 4 and the I-beam using a hand saw. The top wedge and the side wedge are then wedged into the gap between the retaining ring 4 and the I-beam and tightened. The top wedge and the side wedge are triangular wooden wedges. Then, the clamp 2 is installed. The prepared clamp 2 is installed at the end of the top wedge and is tightened against the end of the top wedge. The baffle 3 is tightened against the end of the side wedge. The U-bolt 7 is fastened to the retaining ring 4 through the reserved hole 8 on the clamp 2 (the bolt is a 6*42 U-bolt).

[0030] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments may also exist. The purpose of the above embodiments is to illustrate the present utility model, rather than to limit the protection scope of the present utility model. All applications derived from simple variations of the present utility model fall within the protection scope of the present utility model.

Claims

1. A type of cantilevered I-beam clamping ring and wooden wedge fastening device for fixing cantilevered I-beams; characterized in that: It includes a clamp (2), a baffle (3), and a retaining ring (4); the clamp (2) is U-shaped and horizontally positioned on top of the I-beam, with its horizontal side extending along the width of the I-beam; the two ends of the horizontal side of the clamp (2) extend beyond the two sides of the I-beam; the retaining ring (4) is U-shaped, with its two vertical sides located on the two sides of the I-beam, and its horizontal side located above the I-beam; the two vertical sides of the retaining ring (4) are respectively located on the two sides of the I-beam. The two longitudinal sides of the clamp (2) are connected to each other, and the lower ends of the two vertical sides of the clamp (4) are anchored in the floor slab; a top wedge is provided between the horizontal side of the clamp (4) and the top surface of the I-beam, and the end face of the top wedge abuts against the horizontal side of the clamp (2); there are two baffles (3), which are respectively provided at the bottom of the two ends of the horizontal side of the clamp (2); side wedges are provided between the two vertical sides of the clamp (4) and the web of the I-beam; the end face of the side wedge abuts against the baffle (3).

2. The cantilevered I-beam retaining ring and wooden wedge fastening device according to claim 1, characterized in that: The I-beam is installed on the floor slab, and one end of the I-beam extends beyond the outer edge of the floor slab.

3. The cantilevered I-beam retaining ring and wooden wedge fastening device according to claim 1, characterized in that: The clamp (2) is made of flat steel; the length of the two ends of the horizontal side of the clamp (2) that extend beyond the two sides of the I-beam is not less than 50mm; the length of the two longitudinal sides of the clamp (2) is not less than 300mm.

4. The cantilevered I-beam retaining ring and wooden wedge fastening device according to claim 1, characterized in that: The two vertical sides of the retaining ring (4) are located inside the two longitudinal sides of the clamp (2), and the vertical sides of the retaining ring (4) and the longitudinal sides of the clamp (2) are fixed by U-bolts (7).

5. The cantilevered I-beam retainer with wooden wedge fastening as described in claim 4, characterized in that: Two holes (8) are opened on the longitudinal sides of the clamp (2) near the end position; the distance between the two holes (8) on each longitudinal side is 50mm~60mm; the U-bolt (7) is clamped on the vertical side of the retaining ring (4), and the two ends of the U-bolt (7) are respectively inserted into the two holes (8).

6. The cantilevered I-beam retaining ring and wooden wedge fastening device according to claim 1, characterized in that: The baffle (3) is made of flat steel and is welded to the clamp (2); the length of the baffle (3) is no more than 150mm.

7. The cantilevered I-beam retainer with wooden wedge as described in claim 1, characterized in that: A reinforcing plate (9) is provided between the baffle (3) and the longitudinal side of the clamp (2); the reinforcing plate (9) is triangular and is welded to the longitudinal side of the clamp (2) and the baffle (3) respectively.