Stable steel support system

Abstract

The utility model discloses a stable steel support system which comprises a bracket, a support beam and a connecting assembly, the bracket comprises a lattice beam and a connecting beam which are prefabricated into a whole, the connecting beam is fixed on the lattice beam, the support beam is connected on the lattice beam and the connecting beam, a blocking part is arranged on the connecting beam, the support beam is provided with a matching part which is matched with the blocking part in an abutting mode, and the connecting assembly is fixed on the lattice beam. One of the connecting beam and the supporting beam is provided with an adjusting groove, the other one of the connecting beam and the supporting beam is provided with a connecting hole, the connecting beam and the supporting beam correspond to each other through the adjusting groove and the connecting hole and then are locked through a fastener, and a connecting hoop is connected between the supporting beam and the lattice beam. The utility model has the advantages that the connection is convenient, the integrity is high after connection, and a stable supporting effect can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to a stability steel support system. Background Art

[0002] During the excavation of large foundation pits for underground buildings, steel supports are required to horizontally support the side wall retaining structure and ensure its stability. To increase axial bearing capacity, the currently used steel support system is generally a combined steel support structure, which combines two sets of steel support devices. Traditionally, the middle section of the steel support is secured to the lattice beam by welding a U-shaped steel frame to the upper portion of the steel support. However, due to the point-to-point connection between the U-shaped steel frame and the steel support, this method results in a small contact area and poor steel support stability.

[0003] In the Chinese patent literature, the authorization announcement number CN 217998091U was authorized and announced on December 9, 2022, for a steel support fixing clamp device, which includes at least two U-shaped hoops for clamping on the steel support, at least one telescopic member connected between two adjacent U-shaped hoops, and two sets of fasteners for fixing the U-shaped hoop to the lattice beam. The bottom of each U-shaped hoop is formed with two legs for fixing the two sets of fasteners. The telescopic member includes two first scissors struts, each of which has a pin movably inserted at the intersection position in the middle of the first scissors strut, and the same side of the two U-shaped hoops is diagonally connected to the scissors strut. The application forms a cross-type support through the clamp device to achieve support and reinforcement of the lattice beam.

[0004] The shortcomings of the existing technology are that the clamp-type fastening structure has only a lateral effect and is prone to sliding in the axial direction of the clamp, that is, the clamp is easy to move and the fastening effect is unreliable. Moreover, the clamp device is used in conjunction with multiple clamps, and it is impossible to maintain the same clamping force for each clamp, so there is a problem that the clamp with smaller clamping force is more likely to loosen. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a stable steel support system, which is easy to connect and has high integrity after connection, and can provide a stable support effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A stability steel support system includes a bracket, a support beam and a connecting assembly. The bracket includes a lattice beam and a connecting beam prefabricated as one body. The connecting beam is fixed on the lattice beam, and the supporting beam is connected to the lattice beam and the connecting beam. The connecting beam is provided with a blocking portion, and the supporting beam is provided with a matching portion that abuts against the blocking portion. One of the connecting beam and the supporting beam is provided with an adjustment groove, and the other is provided with a connecting hole. The connecting beam and the supporting beam are locked by fasteners after the adjustment groove and the connecting hole are aligned. A connecting clamp is connected between the support beam and the lattice beam.

[0008] The connecting beam and the supporting beam are pre-positioned by abutting against each other through the blocking part and the matching part, which makes the connection convenient. After the blocking part and the matching part match, the supporting beam and the connecting beam are locked by fasteners, and at the same time, the supporting beam and the lattice beam are connected by connecting clamps. After the blocking part and the matching part match and the fasteners are locked, the connecting clamps cannot slide. The steel support system has high integrity and can provide stable support.

[0009] Preferably, the blocking portion and the fastener exert forces in opposite directions on the support beam on the same straight line. After the blocking portion cooperates with the matching portion, the matching fastener can reliably fix the connecting beam, thereby achieving reliable integral formation of the connecting beam, the support beam and the lattice beam.

[0010] Preferably, the blocking portion is a protrusion fixed on the connecting beam, and the end of the supporting beam is provided with a blocking surface that abuts against the side wall of the protrusion. The protrusion abuts and cooperates with the blocking surface to achieve abutment between the blocking portion and the matching portion, and the limiting effect is reliable.

[0011] Preferably, a mounting plate is provided at the outer end of the support beam, and an adjustment slot is provided on the mounting plate. The adjustment slot is an open slot facing away from the support beam. When the blocking portion and the mating portion abut, the bottom of the open slot abuts against the fastener connected to the connecting hole. The provision of the adjustment slot allows the support beam to be slightly displaced when the connecting clamp is not tightened, facilitating position adjustment of the support beam and facilitating assembly of the support beam.

[0012] Preferably, the connecting hoop is welded to the support beam and fixed thereto, and the connecting hoop can be detachably clamped on the lattice beam to achieve a detachable connection between the support beam and the lattice beam.

[0013] Preferably, the lattice beam is provided with a positioning protrusion for limiting the connection hoop from sliding along the axis of the lattice beam. The positioning protrusion limits the connection hoop, further preventing the connection hoop from sliding after being locked, thereby ensuring the stability of the connection of the connection hoop.

[0014] The beneficial effects of the above solution will be described in detail with reference to the accompanying drawings and the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a stability steel support system proposed in one embodiment of the present utility model;

[0016] Figure 2 This is a structural diagram of a stability steel support system proposed in another embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the arrangement of support beams and connecting beams in the arrangement direction of adjustment slots in a stability steel support system proposed in one embodiment of the present invention;

[0018] Figure 4 It is a schematic internal cross-sectional view of a support beam and a connecting beam in a stability steel support system proposed in one embodiment of the utility model.

[0019] In the figure: lattice beam 1, connecting beam 2, supporting beam 3, blocking part 4, adjusting groove 6, connecting hole 7, fastener 8, connecting hoop 9, mounting plate 10, positioning protrusion 11. DETAILED DESCRIPTION

[0020] like Figures 1 to 4 As shown, one of the embodiments of the present invention proposes a stability steel support system, including a bracket, a support beam 3 and a connecting assembly, the bracket includes a lattice beam 1 and a connecting beam 2 prefabricated as one body, the connecting beam 2 is fixed on the lattice beam 1, the support beam 3 is connected to the lattice beam 1 and the connecting beam 2, the connecting beam 2 is provided with a blocking portion 4, the support beam 3 is provided with a matching portion abutting with the blocking portion 4, one of the connecting beam 2 and the support beam 3 is provided with an adjustment groove 6, and the other is provided with a connecting hole 7, the connecting beam 2 and the support beam 3 are aligned with the adjusting groove 6 and the connecting hole 7 and then locked by a fastener 8, and a connecting clamp 9 is connected between the support beam 3 and the lattice beam 1.

[0021] The support beam 3 and connecting beam 2 are pre-positioned by the abutment of the mating portion and the blocking portion 4, facilitating connection. After the blocking portion 4 engages with the mating portion, the support beam 3 and connecting beam 2 are locked together by fasteners 8. Simultaneously, the support beam 3 and lattice girder 1 are connected by connecting clamps 9. Once the blocking portion 4 engages with the mating portion and the fasteners 8 are tightened, the connecting clamps 9 cannot slide, ensuring high integrity of the steel support system and providing stable support. In this embodiment, the fasteners 8 are bolts. They are threaded into the connecting holes 7.

[0022] The provision of the adjustment slot 6 enables fine adjustment of the fixed positions of the connecting beam 2 and the support beam 3 , making it easier for the support beam 3 to be installed in place.

[0023] As one embodiment of the present invention, a stable steel support system is proposed, wherein the blocking portion 4 and the fastener 8 exert forces in opposite directions on the support beam 3 on the same straight line. For example, Figure 3 and Figure 4As shown, the outer end of the support beam 3 is provided with a mounting plate 10, which is provided with an adjustment slot 6. The adjustment slot 6 is an open slot facing away from the support beam 3. When the blocking portion 4 abuts the mating portion, the bottom of the open slot abuts against the fastener 8 connected to the connection hole 7. After the blocking portion 4 and the mating portion engage, the mating fastener 8 can reliably secure the connection beam 2, achieving a reliable integrated formation of the connection beam 2, support beam 3, and lattice girder 1. The provision of the open slot also allows the support beam 3 to move slightly when the connecting clamp 9 is not tightened, facilitating the position adjustment and assembly of the support beam 3.

[0024] Further, such as Figure 1 and Figure 4 As shown, the blocking portion 4 is a protrusion fixed to the connecting beam 2 and welded to the connecting beam 2. The end of the support beam 3 is provided with a blocking surface that abuts the side wall of the protrusion. The blocking surface acts as a mating portion for the protrusion. The blocking surface is located on the mounting plate 10 at the end of the support beam 3.

[0025] As a simple replacement for the above solution, the projection is formed integrally with the connecting beam 2 , or the projection is bolted to the connecting beam 2 .

[0026] As a simple replacement for the above solution, the blocking portion 4 is a groove structure, and the matching portion is a convex tooth structure corresponding to the groove structure.

[0027] As one of the embodiments of the present invention, a stability steel support system is proposed, such as Figure 1 As shown, the connecting hoop 9 is welded and fixed to the support beam 3, and the connecting hoop 9 is detachably clamped to the lattice beam 1 by bolts.

[0028] Furthermore, the lattice beam 1 is provided with a positioning protrusion 11 for limiting the connection hoop 9 to slide along the axis of the lattice beam 1. Figure 1 As shown, the positioning protrusion 11 is a convex ring structure surrounding the lattice beam 1. The positioning protrusion 11 is located on the side of the connecting hoop 9 facing the connecting beam 2. It prevents the connecting hoop 9 from sliding toward the side where the connecting beam 2 is located, ensuring the reliability of the connection hoop 9. As a simple replacement for the above solution, Figure 2 The positioning protrusion 11 is a protrusion fixed on the side wall of the lattice beam 1.

Claims

1. Stability steel support system, which is characterized by, It includes a bracket, a support beam and a connecting assembly. The bracket includes a lattice beam and a connecting beam prefabricated as one. The connecting beam is fixed on the lattice beam, and the supporting beam is connected to the lattice beam and the connecting beam. The connecting beam is provided with a blocking portion, and the supporting beam is provided with a matching portion that abuts against the blocking portion. One of the connecting beam and the supporting beam is provided with an adjusting groove, and the other is provided with a connecting hole. The connecting beam and the supporting beam are locked by fasteners after the adjusting groove and the connecting hole are aligned. A connecting clamp is connected between the support beam and the lattice beam.

2. The stability steel support system according to claim 1, characterized in that: The blocking portion and the fastener exert forces in opposite directions on the support beam on the same straight line.

3. The stability steel support system according to claim 1, characterized in that: The blocking portion is a convex block fixed on the connecting beam, and the end of the supporting beam is provided with a blocking surface that abuts against the side wall of the convex block.

4. The stability steel support system according to claim 2, characterized in that: The outer end of the support beam is provided with a mounting plate, and an adjustment slot is provided on the mounting plate. The adjustment slot is an open slot that opens in the direction away from the support beam. When the blocking portion abuts against the matching portion, the bottom of the open slot abuts against the fastener connected to the connecting hole.

5. The stability steel support system according to any one of claims 1 to 4, characterized in that: The connecting hoop is welded and fixed to the supporting beam, and the connecting hoop can be detachably clamped on the lattice beam.

6. The stability steel support system according to claim 5, characterized in that: The lattice beam is provided with a positioning protrusion for limiting the connection hoop to slide along the axis of the lattice beam.

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