Clamp structure and clamping fixing method for connecting steel support and support beam

Abstract

The present application relates to a kind of clamp structure of steel support and support beam connection, belong to building construction technical field.Screw upper portion thread is connected with a pair of upper nut thread, and a pair of upper nut is between upper L-shaped clamping piece and upper clamping piece;Its lower portion thread is connected with a pair of lower nut thread, and a pair of lower nut is between lower L-shaped clamping piece and lower clamping piece;Limiting plate is equipped with four same direction long strip limiting hole, and when installation, long strip limiting hole is at least parallel with one of support beam or steel support, according to the angle of support beam or steel support, the position of each screw in long strip limiting hole is determined.The limiting plate of the present application can play the second reinforcing and fixing effect, form two-way limiting, prevent displacement and accidental drop, structure is simple, design is ingenious, and reliability is high.Limiting hole in limiting plate adopts long strip hole, can effectively deal with steel support and support beam orthogonal, oblique or parallel working condition, by screw sliding in limiting hole, realize the effective fixed connection of steel support and support beam.

Description

Technical Field

[0001] This invention relates to a clamp structure for connecting steel supports and bracket beams, belonging to the field of building construction technology. Background Technology

[0002] In traditional construction systems for foundation pit engineering, conventional steel supports and support beams are often connected orthogonally and with their flanges close together. However, there are still no good solutions for oblique and parallel working conditions. Using a single clamp for locking connection still carries the risk of displacement and accidental fall. In addition, when encountering design differences in height between the steel supports and support beams (where there is a gap between their flanges), or when there are deviations between the design and the engineering installation, the existing clamp structure cannot be adapted to make adjustments. Summary of the Invention

[0003] The purpose of this invention is to provide a clamp structure for connecting a steel support and a support beam. The clamp connects four screws into a single unit by means of a limiting plate. By setting elongated holes on the limiting plate, the screws can slide within the limiting holes, which can effectively handle orthogonal, oblique, or parallel working conditions between the steel support and the support beam, and achieve an effective fixed connection between the steel support and the support beam. Furthermore, it can be adaptively adjusted according to the height difference between the steel support and the support beam.

[0004] The present invention adopts the following technical solution:

[0005] A clamping structure for connecting a steel support to a bracket beam includes a limiting plate, an upper clamping head assembly, a lower clamping head assembly, and a screw. The upper clamping head assembly includes an upper L-shaped clamping piece, an upper clamping piece, and an upper nut. The lower clamping head assembly includes a lower L-shaped clamping piece, a lower clamping piece, and a lower nut. The screw is a double-ended screw or a fully threaded screw: its upper thread is threaded to a pair of upper nuts, with the upper L-shaped clamping piece and the upper clamping piece positioned between the pair of upper nuts; its lower thread is threaded to a pair of lower nuts, with the lower L-shaped clamping piece and the lower clamping piece positioned between the pair of lower nuts. The limiting plate has four elongated limiting holes in the same direction, and during installation, the elongated limiting holes are parallel to at least one of the bracket beam or the steel support. The position of each screw in the elongated limiting holes is determined according to the included angle of the bracket beam or the steel support.

[0006] Preferably, it also includes a central nut and a central washer, each located on both sides of the limiting plate, to clamp and fix the limiting plate to accommodate the situation where there is a gap between the lower flange of the steel support and the upper flange of the support beam.

[0007] Preferably, the clamping portions of both the upper L-shaped clamp and the lower L-shaped clamp are provided with a serrated structure.

[0008] Preferably, the screw is a double-ended screw, wherein a section in the middle, at least equal in length to the thickness of the limiting plate, is free of threads.

[0009] Preferably, both the support beam and the steel support are made of I-beams.

[0010] Preferably, the limiting plate is rectangular in shape.

[0011] Preferably, the four elongated limiting holes are in the same direction and are on two parallel straight lines.

[0012] A clamping and fixing method for the above-mentioned clamp structure connecting the steel support and the bracket beam includes the following steps:

[0013] S1. The limiting hole in the limiting plate is parallel to the length direction of the support beam, and the lower clamp head assembly is rotated to be perpendicularly aligned with the length direction of the upper flange of the support beam.

[0014] S2. The screw slides in the limiting hole until it contacts the lower flange of the steel support, and the upper clamp head assembly rotates to be perpendicularly aligned with the length direction of the lower flange of the steel support.

[0015] S3. Tighten the two upper nuts of the upper clamp head assembly and the two lower nuts of the lower clamp head assembly, and tighten all four screws.

[0016] Preferably, the method further includes step S4: adjusting the middle shim and tightening the middle nuts located on both sides of the limiting plate to fix the limiting plate.

[0017] A clamping method for the above-mentioned clamp structure connecting the steel support and the support beam includes the following steps:

[0018] S1. The limiting hole in the limiting plate is placed parallel to the length direction of the steel support, and the upper clamp head assembly is rotated to be perpendicularly aligned with the length direction of the lower flange of the steel support.

[0019] S2. The screw slides in the limiting hole until it contacts the upper flange of the support beam, and the lower clamp head assembly rotates to be perpendicularly aligned with the length direction of the upper flange of the support beam.

[0020] S3. Tighten the two upper nuts of the upper clamp head assembly and the two lower nuts of the lower clamp head assembly, and tighten all four screws.

[0021] Preferably, the method further includes step S4: adjusting the middle shim and tightening the middle nuts located on both sides of the limiting plate to fix the limiting plate.

[0022] The beneficial effects of this invention are as follows:

[0023] 1) The four screws pass through the limiting holes in the limiting plate respectively. After the upper and lower clamp heads are locked with the steel support and the flange of the bracket beam respectively, the limiting plate can play a second strengthening and fixing role, forming a two-way limiting to prevent displacement and accidental falling. The structure is simple, the design is ingenious, and the reliability is high.

[0024] 2) The limiting hole in the limiting plate is a long strip hole, which can effectively cope with the working conditions of the steel support and the support beam being orthogonal, oblique or parallel. The steel support and the support beam are effectively fixed and connected by the screw sliding in the limiting hole.

[0025] 3) When there is a height difference between the lower flange of the steel support and the upper flange of the support beam, the height can be increased and fixed by adding middle clamps and middle nuts, which can easily cope with various working conditions.

[0026] 4) The upper and lower L-shaped clamps are serrated, which can effectively increase the friction. The L-shaped clamps and clamps are clamped together with nuts. The clamp head clamps the lower flange of the steel support or the upper flange of the support beam and is fixed by high-strength screws. It has high rigidity and clear force transmission path, which can effectively ensure the safety of the steel support. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the clamp structure connecting the steel support and the bracket beam of the present invention (excluding the middle nut and the middle washer).

[0028] Figure 2 This is an exploded view of the upper clamping head.

[0029] Figure 3 This is a schematic diagram showing the upper clamping head, lower clamping head, and screw assembled together.

[0030] Figure 4 This is a schematic diagram of the limiting plate.

[0031] Figure 5 This is a schematic diagram of the clamp structure connection when the steel support and the support beam are orthogonal in one embodiment.

[0032] Figure 6 This is a schematic diagram of the clamp structure connection when the steel support and the support beam are obliquely intersecting in one embodiment.

[0033] Figure 7 This is a schematic diagram of the clamp structure connection when there is a height difference between the steel support and the support beam in one embodiment (the washer in the middle nut is not shown).

[0034] Figure 8 This is a schematic diagram of the clamp structure connection when the steel support is close to the support beam in one embodiment (the elongated limiting hole is parallel to the support beam).

[0035] Figure 9 This is a three-dimensional schematic diagram (including the middle nut and the middle washer) of the clamp structure connecting the steel support and the bracket beam of the present invention.

[0036] Figure 10 This is a front view of the clamp structure (including the middle nut and middle washer) connecting the steel support and the bracket beam of the present invention.

[0037] Figure 11 This is a schematic diagram of the clamp structure connection when the steel support is close to the support beam in one embodiment (the elongated limiting hole is parallel to the steel support).

[0038] Figure 12 This is a schematic diagram of the clamp structure connection when there is a height difference between the steel support and the support beam in one embodiment (the long strip-shaped limiting hole is parallel to the steel support).

[0039] In the diagram, 1. Limiting plate, 101. Limiting hole; 2. Upper clamping head assembly, 201. Upper nut, 202. Upper L-shaped clamping piece, 203. Upper clamping piece; 3. Lower clamping head assembly, 301. Lower nut, 302. Lower clamping piece, 303. Lower L-shaped clamping piece; 4. Screw, 5. Steel support, 6. Support beam, 7. Middle nut, 8. Middle washer. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] See Figure 1 A clamping structure for connecting a steel support to a bracket beam includes a limiting plate 1, an upper clamping head assembly 2, a lower clamping head assembly 3, and a screw 4.

[0042] See Figure 2-3 The upper clamp head assembly includes an upper L-shaped clamping piece 202, an upper clamping piece 203, and an upper nut 201; the lower clamp head assembly includes a lower L-shaped clamping piece 303, a lower clamping piece 302, and a lower nut 301.

[0043] The upper clamping plate 203 and the lower clamping plate 302 are rectangular steel plates with a circular hole at one end to facilitate the passage of a high-strength screw. The upper and lower L-shaped clamping plates are serrated to effectively increase friction. Nuts are used to clamp the L-shaped clamping plates and the clamping plates together. The clamping head assembly clamps the lower flange of the steel support or the upper flange of the support beam. The spacing between the L-shaped clamping plates and the clamping plates is adjusted according to the flange plate thickness, and the nuts are tightened to achieve clamping and fixation between the clamping head and the flange.

[0044] The screw 4 is a double-ended screw or a high-strength screw with full threads: its upper thread is threaded to a pair of upper nuts 201, and the upper L-shaped clamp 202 and the upper clamp 203 are located between the pair of upper nuts 201; its lower thread is threaded to a pair of lower nuts 301, and the lower L-shaped clamp 303 and the lower clamp 302 are located between the pair of lower nuts 301.

[0045] See Figure 3-5The limiting plate 1 is provided with four elongated limiting holes 101 in the same direction. During installation, the elongated limiting holes 101 are at least parallel to one of the support beam 6 or the steel support 5. The position of each screw 4 in the elongated limiting hole 101 is determined according to the included angle of the support beam 6 or the steel support 5.

[0046] See Figure 4 The limiting plate 1 has an elongated limiting hole 101, which facilitates the movement of the high-strength screw to adapt to the orthogonal or oblique working conditions of the steel support and the bracket beam. On the other hand, after the upper and lower clamping head assemblies are locked with the flanges of the steel support and the bracket beam respectively, the screw 4 is limited in the elongated hole. The limiting plate 1 can play a second reinforcing and fixing role. The four high-strength screws form a bidirectional limiting mechanism to prevent displacement and accidental falling, ensuring safety and reliability.

[0047] The screw 4 is selected according to the appropriate specification based on the distance between the steel support 5 and the bracket beam 6, which solves the problem that the steel support 5 and the bracket beam 6 can only be connected and fixed in close proximity. The addition of clamping plates and nuts forms a clamping head, which can effectively clamp the flange plate.

[0048] The applicable working conditions for the fixture structure are as follows: 1) The steel support is parallel (0° or 180°), orthogonal (90°), or oblique (any angle) to the support beam. 2) The lower flange of the steel support is close to the upper flange of the support beam or there is a certain height difference between them.

[0049] See Figure 9 and 10 It also includes a central nut 7 and a central washer 8, which are located on both sides of the limiting plate 1 to clamp and fix the limiting plate 1, so as to accommodate the situation where there is a gap between the lower flange of the steel support and the upper flange of the support beam.

[0050] See Figure 3 , 9 10. The clamping parts of the upper L-shaped clamp 202 and the lower L-shaped clamp 303 are each provided with a serrated structure.

[0051] The screw 4 is a double-ended screw, with a section in the middle that is at least equal in length to the thickness of the limiting plate 1 and does not contain threads.

[0052] See Figure 8 The support beam 6 and the steel support 5 are both made of I-beams.

[0053] See Figure 4 The limiting plate 1 is rectangular in shape.

[0054] See also Figure 4 Four elongated limiting holes 101 in the same direction are on two parallel straight lines.

[0055] In one embodiment, see Figure 5The steel support is orthogonal to the support beam. At this time, the elongated limiting hole 101 is parallel to the support beam 6, and the two upper clamp head assemblies 2 located on one side of the steel support 5 are in the same position relative to the elongated limiting hole 101.

[0056] In one embodiment, see Figure 6 The steel support 5 is oblique to the support beam 6. At this time, the elongated limiting hole 101 is parallel to the support beam 6. The two upper clamp head assemblies 2 located on one side of the steel support 5 are in different positions relative to the elongated limiting hole 101, which can be adjusted according to the degree of obliqueness.

[0057] Installation method:

[0058] S1. The limiting hole 101 in the limiting plate 1 is parallel to the length direction of the support beam 6, and the lower clamp head assembly 3 is rotated to be perpendicularly aligned with the length direction of the upper flange of the support beam.

[0059] S2, the screw 4 slides in the limiting hole 101 until it contacts the lower flange of the steel support, and the upper clamp head assembly 2 rotates to be perpendicularly aligned with the length direction of the lower flange of the steel support 5.

[0060] S3. Tighten the upper and lower nuts of the upper clamp head assembly 2 and the upper and lower nuts of the lower clamp head assembly 3. After all four screws are tightened, a reliable and safe connection can be achieved.

[0061] In one embodiment, see Figure 7 and Figure 9 When there is a height difference between the steel support 5 and the support beam 6, a section can be left in the middle of the screw by adjusting the threaded connection position between the screw and the upper and lower clamp head assemblies 2 and 3. At the same time, the position of the limiting plate 1 is fixed by using the middle nut 7 and the middle washer 8. It should be noted that Figure 7 The center nut 7 and center washer 8 are not shown in the diagram; their markings can be combined with the diagram. Figure 9 and Figure 10 .

[0062] As a corresponding optional step S4: Adjust the middle shim 8 and tighten the middle nuts 7 located on both sides of the limiting plate 1 to fix the limiting plate 1.

[0063] In one embodiment, see Figure 8 When the steel support 5 is close to the support beam 6, only the thickness of the limiting plate 1 needs to be reserved between them, without the need to set the middle nut and the middle washer. In this embodiment, the elongated limiting hole is parallel to the support beam 6.

[0064] Figure 9 The figure shows the three-dimensional structure of the clamp structure connecting the steel support and the support beam of the present invention. The steel support and the support beam are not shown in the figure. The figure mainly shows the middle nut 7 and the middle washer 8.

[0065] Figure 10 This is a frontal view of the clamp structure connecting the steel support and the bracket beam of the present invention, and the attached... Figure 9 The diagram is completely consistent, and it mainly shows the center nut 7 and the center washer 8.

[0066] In one embodiment, see Figure 11 , Figure 11 The diagram shows the situation where the elongated limiting hole 101 is parallel to the steel support 5 when the steel support 5 is close to the support beam 6.

[0067] Installation process:

[0068] S1. The limiting hole 101 in the limiting plate 1 is placed parallel to the length direction of the steel support 5, and the upper clamp head assembly 2 is rotated to be perpendicularly aligned with the length direction of the lower flange of the steel support 5.

[0069] S2, the screw 4 slides in the limiting hole 101 until it contacts the upper flange of the support beam 6, and the lower clamp head assembly 3 rotates to be perpendicularly aligned with the length direction of the upper flange of the support beam 6.

[0070] S3. Tighten the two upper nuts 201 of the upper clamping head assembly 2 and the two lower nuts 301 of the lower clamping head assembly 3, and tighten all four screws 4.

[0071] In one embodiment, see Figure 12 , Figure 12 This demonstrates the situation where the elongated limiting hole 101 is parallel to the steel support 5 when there is a height difference between the steel support and the support beam.

[0072] As a corresponding optional step S4: Adjust the middle shim 8 and tighten the middle nuts 7 located on both sides of the limiting plate 1 to fix the limiting plate 1.

[0073] In summary, the present invention has the following advantages:

[0074] 1) The upper clamp head assembly 2 and the lower clamp head assembly 3 clamp the lower flange of the steel support 5 or the upper flange of the support beam 6, and are connected and fixed by high-strength screws 4. They have high rigidity and clear force transmission path, which can effectively ensure the safety of the steel support.

[0075] 2) The upper and lower L-shaped clamps are serrated, which can effectively increase the friction. The L-shaped clamps and the clamps are clamped together with nuts to form a reliable structure.

[0076] 3) Adjusting the L-shaped clamps and the clamp spacing can enable the clamp head to clamp flanges of different plate thicknesses.

[0077] 4) The limiting hole in the limiting plate is rectangular, which can effectively cope with the orthogonal or oblique working conditions of the steel support and the support beam. The steel support and the support beam are effectively fixed and connected by sliding the screw in the limiting hole.

[0078] 5) The four screws pass through the limiting holes in the limiting plate respectively. After the upper and lower clamp heads are locked with the steel support and the flange of the bracket beam respectively, the limiting plate can play a second strengthening and fixing role, forming a two-way limiting to prevent displacement and accidental falling. The structure is simple, the design is ingenious, and the reliability is high.

[0079] 6) When there is a height difference between the lower flange of the steel support 5 and the upper flange of the support beam 6, the height can be increased and fixed by adding clamps and nuts to easily cope with various working conditions.

[0080] 7) The clamp structure is suitable for working conditions where the steel support 5 and the support beam 6 are parallel, orthogonal, or oblique, and is also suitable for working conditions where the two are close together or have a height difference.

[0081] The above embodiments are all optional embodiments of the present invention. Those skilled in the art can make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should all fall within the scope of protection claimed by the present invention.

Claims

1. A clamp structure for connecting a steel support to a bracket beam, characterized in that: Includes a limiting plate (1), an upper clamp head assembly (2), a lower clamp head assembly (3), and a screw (4); The upper clamp head assembly includes an upper L-shaped clamping piece (202), an upper clamping piece (203), and an upper nut (201); The lower clamp head assembly includes a lower L-shaped clamping piece (303), a lower clamping piece (302), and a lower nut (301). The screw (4) is a double-ended screw or a fully threaded screw: Its upper thread is threaded to a pair of upper nuts (201), and between the pair of upper nuts (201) are the upper L-shaped clip (202) and the upper clip (203). Its lower thread is threaded to a pair of lower nuts (301), and between the pair of lower nuts (301) are the lower L-shaped clip (303) and the lower clip (302). The limiting plate (1) is provided with four elongated limiting holes (101) in the same direction. During installation, the elongated limiting holes (101) are at least parallel to one of the support beam (6) or the steel support (5). The position of each screw (4) in the elongated limiting hole (101) is determined according to the included angle of the support beam (6) or the steel support (5).

2. The clamp structure for connecting the steel support and the bracket beam as described in claim 1, characterized in that: It also includes a middle nut (7) and a middle washer (8), which are located on both sides of the limiting plate (1) to clamp and fix the limiting plate (1) to accommodate the gap between the lower flange of the steel support (5) and the upper flange of the support beam (6).

3. The clamp structure for connecting the steel support and the bracket beam as described in claim 1, characterized in that: The clamping parts of the upper L-shaped clamp (202) and the lower L-shaped clamp (303) are each provided with a serrated structure.

4. The clamp structure for connecting the steel support and the bracket beam as described in claim 1, characterized in that: The screw (4) is a double-ended screw, in which there is a section in the middle that is at least equal in length to the thickness of the limiting plate (1) and does not contain threads.

5. The clamp structure for connecting the steel support and the bracket beam as described in claim 1, characterized in that: The support beam (6) and steel support (5) are both made of I-beams.

6. The clamp structure for connecting the steel support and the bracket beam as described in claim 1, characterized in that: The limiting plate (1) is rectangular in shape; four elongated limiting holes (101) in the same direction are on two parallel straight lines.

7. A clamping and fixing method for a clamp structure connecting a steel support and a bracket beam as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. The limiting hole (101) in the limiting plate (1) is placed parallel to the length direction of the support beam (6), and the lower clamp head assembly (3) is rotated to be perpendicularly aligned with the length direction of the upper flange of the support beam (6). S2, the screw (4) slides in the limiting hole (101) until it contacts the lower flange of the steel support (5), and the upper clamp head assembly (2) rotates to be perpendicularly aligned with the length direction of the lower flange of the steel support (5); S3. Tighten the two upper nuts (201) of the upper clamp head assembly (2), the two lower nuts (301) of the lower clamp head assembly (3), and tighten all four screws (4).

8. The clamping and fixing method as described in claim 7, characterized in that: It also includes step S4: adjusting the middle shim (8) and tightening the middle nuts (7) located on both sides of the limiting plate (1) to fix the limiting plate (1).

9. A clamping and fixing method for a clamp structure connecting a steel support and a bracket beam as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. The limiting hole (101) in the limiting plate (1) is placed parallel to the length direction of the steel support (5), and the upper clamp head assembly (2) is rotated to be perpendicularly aligned with the length direction of the lower flange of the steel support (5). S2, the screw (4) slides in the limiting hole (101) until it contacts the upper flange of the support beam (6), and the lower clamp head assembly (3) rotates to be perpendicular to the length direction of the upper flange of the support beam (6); S3. Tighten the two upper nuts (201) of the upper clamp head assembly (2), the two lower nuts (301) of the lower clamp head assembly (3), and tighten all four screws (4).

10. The clamping and fixing method as described in claim 9, characterized in that: It also includes step S4: adjusting the middle shim (8) and tightening the middle nuts (7) located on both sides of the limiting plate (1) to fix the limiting plate (1).

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