Fixing device for steel support and straining beam

Abstract

The utility model discloses a fixing device for a steel support and a straining beam, which comprises the straining beam, the steel support is arranged at the center of the upper surface of the straining beam, the outer wall of the steel support is sleeved with U-shaped round steel, threads are arranged at two ends of the U-shaped round steel, the outer wall of the round steel sequentially penetrates through channel steel and the straining beam, and double nuts are in threaded connection with the threads of the round steel. The upper surfaces of the double nuts are attached to the lower surface of the straining beam. The threads are arranged at the two ends of the U shape of the round steel, after the double nuts are tightened, the friction force between the threads is increased through the axial force generated between the nuts, the nuts are prevented from automatically loosening, and when the round steel penetrates through the oval hole of the upper steel channel and then penetrates through the round hole reserved in the lower steel angle, the round steel can be aligned with the round hole through movement of the oval hole. And meanwhile, the structure can be repeatedly used, so that the cost is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel support tie beams, and specifically relates to a fixing device for steel supports and tie beams. Background Art

[0002] Steel supports are extremely important components in the foundation pit support system. Steel supports are prone to instability and damage after being compressed. In order to reduce the length of steel supports, tie beams are usually set up when the steel supports are long to avoid instability and damage to the steel supports. Therefore, it is very important to ensure a firm connection between the steel supports and the tie beams. Steel supports and tie beams are usually welded into an inverted U-shaped structure with three angle steels. After the steel supports are fixed, they are welded to the tie beams below. This method is complicated to operate, complex to disassemble, inconvenient to construct, and has a low reuse rate.

[0003] Steel support is an extremely important component in the foundation pit support system. Steel support is prone to instability and failure after being compressed. In order to reduce the length of steel support, tie beams are usually set when the steel support is long to avoid instability and failure of the steel support. Therefore, a fixing device for steel support and tie beam is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing device for a steel support and a tie beam to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing device for a steel support and a tie beam, comprising a tie beam, a steel support is arranged at the center of the upper surface of the tie beam, channel steels are symmetrically arranged on the outer ring wall of the steel support, the lower surface of the channel steels is fitted with the upper surface of the tie beam, and a round steel is sleeved on the outer wall of the steel support. The round steel is U-shaped, and threads are arranged at both ends of the U. The outer wall of the round steel passes through the channel steel and the tie beam in sequence, and double nuts are threadedly connected at the threads of the round steel, and the upper surface of the double nuts is fitted with the lower surface of the tie beam.

[0006] Preferably, a support plate is provided on the lower surface of the outer ring wall of the steel support, and the upper surface of the support plate is provided with an arc, and the support plate is fitted with the outer ring wall of the steel support through the arc of the upper surface, and the lower surface of the support plate is fitted with the center of the upper surface of the tie beam, and bolts are sleeved on both sides of the support plate, and the support plate is fixedly connected to the tie beam through the bolts.

[0007] Preferably, the surface of the channel steel is symmetrically provided with elliptical holes, and the elliptical holes are vertically symmetrically arranged, and the surface of the angle steel is symmetrically provided with circular holes, and the circular holes are vertically symmetrically arranged.

[0008] Preferably, a protruding rod is symmetrically fixedly connected to the lower surface of the channel steel, an outer wall of the protruding rod passes through the upper surface of the tie beam, and the protruding rod and the tie beam are clearance-fitted.

[0009] Compared with the prior art, the utility model has the following beneficial effects: a circular hole is reserved on the surface of the angle steel, and an elliptical hole is reserved on the surface of the channel steel. After the round steel is sleeved on the outer ring wall of the steel support, it is passed through the reserved holes of the channel steel and the angle steel and then fixed with a double nut. Threads are provided at both ends of the U-shape of the round steel. After the double nuts are tightened, the axial force generated between the nuts increases the friction between the threads and prevents the nuts from automatically loosening. When the round steel passes through the elliptical hole of the upper channel steel and then passes through the reserved circular hole on the lower angle steel again, the elliptical hole can be moved to align with the circular hole to avoid installation failure due to construction errors. The fixing device has a stable connection and high safety. The fixing device of this structure is simple to construct and easy to construct, which can greatly save construction period. At the same time, the fixing device is firmly connected, safe and reliable. At the same time, this structure can be reused, which greatly saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a top view of the structure of the utility model;

[0012] Figure 3 for Figure 1 Structural plan of round steel;

[0013] Figure 4 for Figure 1 Enlarged detail of the middle channel steel;

[0014] Figure 5 for Figure 1 A magnified view of the details of the middle angle steel;

[0015] Figure 6 for Figure 1 The structural stereogram of the middle support plate;

[0016] Figure 7 for Figure 1 Structural stereogram of the middle channel steel and angle steel;

[0017] In the figure: 1. tie beam; 2. channel steel; 3. steel support; 4. round steel; 5. angle steel; 6. double nut; 7. protruding rod; 8. support plate; 9. bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-7 The utility model provides a fixing device for a steel support and a tie beam, comprising a tie beam 1, a steel support 3 is arranged at the center of the upper surface of the tie beam 1, a channel steel 2 is symmetrically arranged on the outer ring wall of the steel support 3, the lower surface of the channel steel 2 is in contact with the upper surface of the tie beam 1, a round steel 4 is sleeved on the outer wall of the steel support 3, the round steel 4 is in a U-shape, and threads are arranged at both ends of the U-shape, the outer wall of the round steel 4 passes through the channel steel 2 and the tie beam 1 in sequence, a double nut 6 is threadedly connected to the thread of the round steel 4, and the upper surface of the double nut 6 is in contact with the lower surface of the tie beam 1.

[0020] When the steel support 3 and the tie beam 1 are supported and fixed, the two ends of the steel support 3 are fixed inside the foundation pit, and the steel support 3 is mounted on the surface of the tie beam 1. The channel steel 2 is symmetrically arranged on the top of the tie beam 1, and the channel steels 2 on both sides are fitted with the outer ring wall of the steel support 3. At the same time, the angle steel 5 is symmetrically arranged below the tie beam 1. At the same time, the surface of the angle steel 5 is reserved with a circular hole, and the surface of the channel steel 2 is reserved with an elliptical hole. After the round steel 4 is sleeved on the outer ring wall of the steel support 3, it is passed through the reserved holes of the channel steel 2 and the angle steel 5 and fixed with a double nut 6. The U-shaped two ends of the round steel 4 The ends are provided with threads. After the double nuts 6 are tightened, the axial force generated between the nuts increases the friction between the threads and prevents the nuts from loosening automatically. Each steel support 3 is fixed to the tie beam 1 with two round steels 4, two angle steels 5 and two channel steels 2. When the round steel 4 passes through the elliptical hole of the upper channel steel 2 and then passes through the reserved circular hole on the lower angle steel 5 again, the circular hole can be aligned with the circular hole by moving the elliptical hole to avoid installation failure due to construction errors. The fixing device has a stable connection, high safety, convenient construction and is reusable.

[0021] A support plate 8 is provided on the lower surface of the outer ring wall of the steel support 3, and an arc is provided on the upper surface of the support plate 8, and the support plate 8 is fitted with the outer ring wall of the steel support 3 through the arc of the upper surface, and the lower surface of the support plate 8 is fitted with the center of the upper surface of the tie beam 1. Bolts 9 are sleeved on both sides of the support plate 8, and the support plate 8 is fixedly connected to the tie beam 1 through the bolts 9. The support plate 8 can lift the steel support 3 through the top arc setting, and at the same time, the two sides are fixed and kept stable by bolts 9, so that the bottom placement of the steel support 3 is more stable.

[0022] Elliptical holes are symmetrically formed on the surface of the channel steel 2 , and the elliptical holes are vertically symmetrically arranged. Circular holes are symmetrically formed on the surface of the angle steel 5 , and the circular holes are vertically symmetrically arranged.

[0023] The lower surface of the channel steel 2 is symmetrically fixedly connected with a protruding rod 7, the outer wall of the protruding rod 7 passes through the upper surface of the tie beam 1, and the protruding rod 7 and the tie beam 1 are clearance-fitted. The protruding rod 7 can pass through the tie beam 1 to provide additional limiting support for the channel steel 2 to prevent the channel steel 2 from sliding and deviating to both sides during installation.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for steel supports and tie beams, characterized in that: The invention comprises a tie beam (1), wherein a steel support (3) is arranged at the center of the upper surface of the tie beam (1), a channel steel (2) is symmetrically arranged on the outer ring wall of the steel support (3), the lower surface of the channel steel (2) is in contact with the upper surface of the tie beam (1), a round steel (4) is sleeved on the outer wall of the steel support (3), the round steel (4) is in a U-shape, and threads are arranged at both ends of the U-shape, the outer wall of the round steel (4) passes through the channel steel (2) and the tie beam (1) in sequence, and an angle steel (5) is symmetrically arranged below the tie beam (1), a double nut (6) is threadedly connected to the thread of the round steel (4), and the upper surface of the double nut (6) is in contact with the lower surface of the tie beam (1).

2. A fixing device for steel supports and tie beams according to claim 1, characterized in that: A support plate (8) is provided on the lower surface of the outer ring wall of the steel support (3); an arc is provided on the upper surface of the support plate (8); and the support plate (8) is fitted with the outer ring wall of the steel support (3) through the arc of the upper surface; the lower surface of the support plate (8) is fitted with the center of the upper surface of the tie beam (1); bolts (9) are sleeved on both sides of the support plate (8); and the support plate (8) is fixedly connected to the tie beam (1) through the bolts (9).

3. A fixing device for steel supports and tie beams according to claim 1, characterized in that: The surface of the channel steel (2) is symmetrically provided with elliptical holes, and the elliptical holes are arranged vertically symmetrically. The surface of the angle steel (5) is symmetrically provided with circular holes, and the circular holes are arranged vertically symmetrically.

4. A fixing device for steel supports and tie beams according to claim 1, characterized in that: The lower surface of the channel steel (2) is symmetrically fixedly connected with a protruding rod (7), the outer wall of the protruding rod (7) penetrates the upper surface of the tie beam (1), and the protruding rod (7) and the tie beam (1) are clearance-matched.

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