Quick-release angle brace system for foundation pit support

Abstract

The utility model discloses a quick-release angle brace system for supporting a foundation pit, belongs to the field of foundation pit construction, and solves the problems of inconvenience in disassembly and assembly and incapability of flexible adjustment in the traditional mode of welding and connecting components. The device comprises two bases, the bases are in an isosceles triangle shape, the bevel edges of the two bases are detachably installed on the inner sides of the right-angle edges of an integrated profile steel waist beam respectively, a movable head is arranged on one base, and a diagonal bracing steel pipe is arranged between the other base and the movable head. The quick supporting system can be quickly mounted and dismounted, and the construction efficiency and the construction quality are remarkably improved. The angle brace system eliminates the defects of a welding mode, can be flexibly adjusted according to field conditions and design requirements, and can be repeatedly used after being disassembled, and the service life of the angle brace system is long.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit construction, specifically relating to a quick-release corner brace system for foundation pit support. Background Technology

[0002] Currently, in foundation pit support operations, corner bracing systems are typically constructed using welding, where the bracing base and the steel girders are connected by welding. This method is complex to install and dismantle, and the corner bracing system is difficult to reuse multiple times. Because the corner bracing system uses a welded, fixed connection, the span of the corner bracing cannot be flexibly adjusted during on-site construction due to changes in site conditions and design modifications. Utility Model Content

[0003] The purpose of this invention is to provide a quick-release corner brace system for foundation pit support, so as to solve the problems of inconvenient disassembly and assembly and inflexible adjustment of traditional welded connection components.

[0004] The technical solution of this utility model is: a quick-release corner brace system for foundation pit support, comprising two bases, the bases being in the shape of isosceles triangles, the hypotenuses of the two bases being detachably installed on the inside of the right-angle side of the integrated steel waist beam, one base being provided with a hinged head, and the other base being provided with a supporting steel pipe between the hinged head and the supporting steel pipe.

[0005] As a further improvement of this utility model, the supporting steel pipe is available in multiple length specifications, and can be designed as 3m, 4m, 5m and 6m.

[0006] As a further improvement of this utility model, the inner side of the integrated steel waist beam has multiple positioning holes, and the inner edge of the integrated steel waist beam has multiple insertion holes at the upper and lower relative positions. The base is fixed to the positioning holes by positioning screws and nuts. Steel column pins are inserted into the upper and lower relative insertion holes. Steel column pins are provided at both acute angles of the base, and the steel column pins are tightly against the base.

[0007] As a further improvement of this utility model, the two ends of the supporting steel pipe are respectively connected to the base and the hinge head by bolts.

[0008] As a further improvement of this utility model, the detachable head and the base are detachably connected.

[0009] The beneficial effects of this utility model are: This quick-support system allows for rapid installation and disassembly, significantly improving construction efficiency and quality. Simply position the base on the appropriate location on the integrated steel girders using positioning screws, then reinforce it by inserting steel column pins into the integrated steel girders at both ends. This achieves rapid connection of the base and reliably withstands the pressure of the supports. Then, adjust the length of the hinge head to support the supporting steel pipes between the hinge head and another base, thus completing the installation of the corner bracing system. This utility model eliminates the drawbacks of welding methods, allows for flexible adjustment according to site conditions and design requirements, can be reused multiple times after disassembly, and has a long service life. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is an exploded view of the present invention.

[0012] In the diagram: 1-base; 2-integrated steel waist beam; 3-flexible head; 5-bracing steel pipe; 6-positioning hole; 7-insertion hole; 8-positioning screw; 9-steel column pin. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings.

[0014] like Figure 1 , Figure 2 As shown, a quick-release corner bracing system for foundation pit support includes two bases 1, which are in the shape of isosceles triangles. The hypotenuses of the two bases 1 are detachably installed on the inside of the right-angle side of the integrated steel waist beam 2. One base 1 is provided with a hinged head 3, and the other base 3 is provided with a supporting steel pipe 5 between the hinged head 3 and the other base 3.

[0015] The supporting steel pipe 5 is available in multiple lengths. It can be designed to be 3m, 4m, 5m, and 6m.

[0016] The inner side of the integrated steel waist beam 2 has multiple positioning holes 6. The inner edge of the integrated steel waist beam 2 has multiple insertion holes 7 at opposite positions. The base 1 is fixed to the positioning holes 6 by positioning screws 8 and nuts. Steel column pins 9 are inserted into the opposite insertion holes 7. Steel column pins 9 are provided at both acute angles of the base 1. The steel column pins 9 are tightly against the base 1.

[0017] The two ends of the supporting steel pipe 5 are connected to the base 1 and the hinge head 3 by bolts, respectively.

[0018] The movable head 3 and the base 1 are detachably connected by bolts.

[0019] During installation, place the base 1 at a suitable position on the integrated steel girders 2, and fix the base 1 to the integrated steel girders 2 using positioning screws 8 and nuts. Then, insert the steel column pins 9 into the insertion holes 7 on the upper and lower flanges of the integrated steel girders 2, so that the steel column pins 9 are tightly pressed against the two acute angles of the base 1. The steel column pins 9 have sufficient rigidity to ensure a firm connection between the base 1 and the integrated steel girders 2 to withstand the bracing pressure. Install the hinge head 3 on one base 1 and adjust the hinge head 3 to a suitable length. Select a bracing steel pipe 5 of appropriate length according to the span and support it between the hinge head 3 and the other base 1. Fix the two ends of the bracing steel pipe 5 with bolts. When the span is long, two bracing steel pipes 5 can be selected and connected by bolts for use.

[0020] During disassembly, remove the supporting steel pipe 5, then take out the steel column pin 9 and remove the positioning screw 8 to remove the base 1. The corner bracing system of this utility model can be reused multiple times.

[0021] This invention significantly improves construction efficiency and quality, shortens the construction period, and the integrated steel wainscoting is more reliable than the traditional spliced ​​wainscoting. At the same time, the span can be flexibly adjusted according to design requirements.

Claims

1. A quick-release corner-bracing system for use in excavation support, characterized by: It comprises two bases (1), the base (1) is isosceles triangle shape, the hypotenuse of two bases (1) is respectively detachable installation in the inside of the right angle side of integrated steel waist beam (2), one of the base (1) is equipped with the adjustable head (3), the other base (1) and adjustable head (3) between it is equipped with the brace steel pipe (5).

2. A quick-release corner-bracing system for use in a foundation pit support according to claim 1, characterized in that: The brace steel pipe (5) has multiple length specifications for selection.

3. A quick-release corner-bracing system for use in a foundation pit support according to claim 1 or 2, characterized in that: The inside vertical surface of the integrated steel waist beam (2) is reserved with multiple positioning holes (6), the inside of the integrated steel waist beam (2) is reserved with multiple jack (7) in the opposite position, the base (1) is fixed on the positioning hole (6) through the positioning screw (8) and nut, the opposite jack (7) is inserted with the steel column bolt (9), the steel column bolt (9) is tightly abutted to the base (1) in the two acute angle of base (1).

4. A quick-release corner-bracing system for use in a foundation pit support according to claim 3, characterized in that: The two ends of brace steel pipe (5) are connected with base (1) and adjustable head (3) through bolt.

5. A quick-release corner-bracing system for use in a foundation pit support according to claim 4, characterised in that: The adjustable head (3) is detachable connected with base (1).

Images