A connection for a diagonal brace to a square tube and a method of connection
By using butterfly-shaped plate connectors, a simplified connection between the tie rod and the square tube is achieved, solving the problems of weakened structural rigidity and complicated construction in traditional connection methods, thus improving construction efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI OPEN STEEL JOIST
- Filing Date
- 2024-10-24
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional connection between tie rods and square tubes requires drilling large-diameter hand holes in the square tubes, which weakens the structural rigidity, makes construction cumbersome, and increases costs.
Design a butterfly-shaped plate connector with slots on both sides and a hollow interior for inserting diagonal tie rods. It is fixed by nuts. The slot design of the connector allows it to be inserted into the square tube socket in one direction and rotated to fix it, avoiding the need for opening hand holes.
It simplifies the connection process, improves construction efficiency, maintains structural strength, and reduces costs, eliminating the need to drill handholes in the square tube.
Smart Images

Figure CN119083603B_ABST
Abstract
Description
A connector and connection method for diagonal tie rods and square tubes Technical Field
[0001] This invention relates to the field of building technology, and in particular to a connector and connection method for a tie rod and a square tube. Background Technology
[0002] The function of the tie rod is to form a geometrically invariant system together with the square tube and the column. The traditional method is to use bolts to connect the tie rods, inserting them into the rectangular holes of the square tubes, and leaving a hand hole on the other side of the square tube for tightening the bolts. The hand hole is usually a round hole with a diameter of more than 150mm, which greatly weakens the rigidity of the wall beam structure. The tie rod gaskets are expensive and the construction is cumbersome. Summary of the Invention
[0003] The purpose of this invention is to provide a connector and connection method that can complete the connection between the diagonal tie rod and the square tube in one direction without the need for a separate hand hole.
[0004] To achieve the above objectives, the present invention proposes a connector for a diagonal tie rod and a square tube. The connector has slots on both sides and is hollow inside for inserting the diagonal tie rod. The square tube has insertion holes, and the diagonal tie rod is fixed in the insertion holes by the connector.
[0005] The distance between the two slots of the connector is the horizontal width. The distance between the upper edges of the two slots is greater than the diameter of the socket, and the distance between the lower edges of the two slots is less than the diameter of the socket. The vertical width of the connector, perpendicular to the horizontal direction, is less than the diameter of the socket.
[0006] Furthermore, the connector is formed by one-piece stamping of a butterfly-shaped sheet metal, which is simple to process and has low cost.
[0007] Furthermore, the connector includes two identical and symmetrical side plates, and a bottom plate connecting the two side plates; the two side plates and the bottom plate form a cavity, which is used to insert diagonal tie rods.
[0008] Furthermore, slots are provided on both sides of the side panel; the upper edge of the first slot is the long side and the lower edge is the short side; the lower edge of the tail slot is bent to form a limiting block; the limiting block prevents the connector from sliding off the diagonal strip during the insertion stage.
[0009] The side panel is triangular in shape, with the front slot located at the top corner of the side panel and the rear slot located at the bottom edge of the side panel.
[0010] Furthermore, the ends of the diagonal bracing are fixed to the connectors by nuts, with the nuts overlapping the bottom edge of the side plate, which is an arc-shaped edge.
[0011] This invention also proposes a method for connecting a tie rod to a square tube, comprising the following steps:
[0012] S1: Insert the end of the diagonal tie rod into the cavity of the connector, and tighten the nut on the end to fix it in place;
[0013] S2: Rotate the connector to a vertical position, causing the diagonal tie rod to be inserted into the insertion hole of the square tube;
[0014] S3: Rotate the connector at a certain angle and insert the slot at the end of the connector into the edge of the square tube insertion hole;
[0015] S4: Continue lowering the connector until the upper edge of the connector's slot overlaps the edge of the square tube's insertion hole, thus completing the fixed connection between the diagonal tie rod and the square tube.
[0016] Compared with the prior art, the advantages of the present invention are:
[0017] 1. The connector structure of the present invention is simple, which simplifies the connection method between the diagonal tie rod and the square tube and greatly improves construction efficiency.
[0018] 2. The connector of the present invention has high rigidity and low cost, and does not require opening hand holes in the square tube, thus ensuring the integrity and structural strength of the square tube. Attached Figure Description
[0019] Figure 1 is a schematic diagram of the connection structure between the diagonal tie rod and the square tube in an embodiment of the present invention;
[0020] Figure 2 is a perspective view of the connector in an embodiment of the present invention;
[0021] Figure 3 is a schematic diagram of the unfolded structure of the connector in an embodiment of the present invention;
[0022] Figure 4 is a diagram showing the connection steps between the diagonal tie rod and the square tube in an embodiment of the present invention; Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.
[0024] As shown in Figure 2, the present invention proposes a connector 1 for connecting the diagonal tie bar 2 and the square tube 3. The connector 1 has slots on both sides and is hollow inside for inserting the diagonal tie bar 2. The square tube 3 has a socket 31, and the diagonal tie bar 2 is fixed in the socket 31 by the connector 1.
[0025] As shown in Figure 1, in order to ensure that the connector 1 can be smoothly inserted into the socket 31 and to facilitate subsequent installation, the dimensions of the connector 1 are limited to the following minimum: the distance between the two slots is the horizontal width, wherein the distance between the upper edges of the two slots is greater than the diameter of the socket 31, and the distance between the lower edges of the two slots is less than the diameter of the socket 31; the vertical width of the connector 1 perpendicular to the horizontal is less than the diameter of the socket 31.
[0026] In this embodiment, as shown in Figure 3, the connector 1 is a butterfly-shaped plate integrally stamped, which is simple to process and has low cost. The connector 1 consists of two identical and symmetrical side plates 16 and a base plate 11 connecting the two side plates 16; the two side plates 16 and the base plate 11 form a cavity 12, which is used to insert the diagonal tie rod 2. Slots are opened on both sides of the side plates 16; the upper edge of the first slot 15 is the long side and the lower edge is the short side; the lower edge of the tail slot 13 is bent to form a limiting block 14; the limiting block 14 prevents the connector 1 from sliding off the diagonal tie rod 2 during the insertion stage. As shown in Figures 1 and 2, the side plate 16 is triangular in shape, the first slot 15 is the slot on one side of the apex of the side plate 16, and the tail slot 13 is the slot on one side of the bottom edge of the side plate 16. The end of the diagonal tie bar 2 is fixed to the connector 1 by the nut 4. The nut 4 overlaps the bottom edge of the side plate 16. The bottom edge is an arc edge, which facilitates the adjustment of the angle of the diagonal tie bar 2 and makes the nut 4 slide more smoothly.
[0027] As shown in Figure 4, the connection method between the diagonal tie rod 2 and the square tube 3 of the present invention includes the following steps:
[0028] S1: Insert the end of the diagonal tie bar 2 into the cavity 12 of the connector 1, and screw the nut 4 on the end to limit and fix it. The diameter of the nut 4 must be greater than the distance between the two side plates 16 to fix it.
[0029] S2: Rotate the connector 1 to a near-vertical position (in this embodiment, the width of the connector 1 near the vertical position is also smaller than the diameter of the insertion hole 31, so it does not need to be inserted completely vertically), and drive the diagonal strip 2 to be inserted into the insertion hole 31 of the square tube 3;
[0030] S3: Rotate connector 1 at a certain angle and insert the slot 13 at the end of connector 1 into the edge of the insertion hole 31 of square tube 3;
[0031] S4: Continue to lower connector 1 until the upper edge of the slot 15 at the beginning of connector 1 overlaps the edge of the insertion hole 31 of square tube 3, thus completing the fixed connection between the diagonal tie bar 2 and square tube 3.
[0032] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the present invention. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and content disclosed in the present invention without departing from the scope of the present invention shall be deemed to have remained within the protection scope of the present invention.
Claims
1. A method for connecting a diagonal tie rod to a square tube, characterized in that, The connector includes a diagonal tie rod and a square tube. The connector has slots on both sides and is hollow inside for inserting the diagonal tie rod. The square tube has insertion holes, and the diagonal tie rod is fixed into the insertion holes via the connector. The distance between the two slots is the horizontal width, wherein the distance between the upper edges of the two slots is greater than the diameter of the insertion hole, and the distance between the lower edges of the two slots is less than the diameter of the insertion hole. The vertical width of the connector, perpendicular to the horizontal direction, is less than the diameter of the insertion hole. The connector includes two identical and symmetrical side plates and a base plate connecting the two side plates. The two side plates and the base plate form an opening. The diagonal brace has a cavity; the end of the diagonal brace is fixed to the connector by a nut, the nut overlaps the bottom edge of the side plate, and the bottom edge is an arc-shaped edge; the connection method between the diagonal brace and the square tube includes the following steps: S1: insert the end of the diagonal brace into the cavity of the connector, and screw the nut on the end to fix it; S2: rotate the connector to a vertical position, and drive the diagonal brace to be inserted into the insertion hole of the square tube; S3: rotate the connector at a certain angle, and insert the slot at the end of the connector into the edge of the insertion hole of the square tube; S4: continue to lower the connector until the upper edge of the slot at the beginning of the connector overlaps the edge of the insertion hole of the square tube, and the fixed connection between the diagonal brace and the square tube is completed.
2. The method for connecting the diagonal tie rod and the square tube according to claim 1, characterized in that, The connector is a butterfly-shaped plate integrally stamped.
3. The method for connecting the diagonal tie rod and the square tube according to claim 2, characterized in that, The slots are provided on both sides of the side plate; the upper edge of the first slot is the long side and the lower edge is the short side; the lower edge of the last slot is bent to form a limiting block; the side plate is triangular in shape, the first slot is the slot on the top corner of the side plate, and the last slot is the slot on the bottom edge of the side plate.
Citation Information
Patent Citations
Cable-stayed reinforcing steel bar fixing seat and cable-stayed reinforcing steel bar fastening method
CN105256952A