Connecting device for enhancing integrity of steel frame

Abstract

The utility model discloses a connecting device for enhancing integrality of a steel frame, which comprises an inner connecting frame, an outer connecting frame and a plurality of outer connecting frames, the inner connecting frame is arranged on the inner side of each outer steel frame, and the inner connecting frames are used for connecting the inner sides of the outer steel frames; the outer connecting frames are arranged on the outer sides of the outer steel frames, and the outer connecting frames are used for connecting the outer sides of the outer steel frames; the number of the two-way adjusting connecting assemblies is at least one, and the two-way adjusting connecting assemblies are arranged between the inner connecting frame and the outer connecting frame. The two-way adjusting connecting assembly is used for connecting the inner sides of the outer steel frames through the inner connecting frame and connecting the outer sides of the outer steel frames through the outer connecting frame so that the integrity of the outer steel frames can be enhanced. And the primary support has higher overall deformation resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a connecting device for enhancing the integrity of a steel frame. Background Art

[0002] During the tunnel excavation process, in order to control the deformation of the surrounding rock and prevent the tunnel from collapsing, the initial support construction must be carried out immediately after the excavation. The initial support of the tunnel is mainly composed of system anchors, initial support steel frames and shotcrete. The connection between the initial support steel frames of the tunnel is generally longitudinally connected with steel bars. The connection between the steel frames is weak, and the overall force bearing capacity of the steel frames is poor, which is particularly prominent in soft rock large deformation tunnels. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes a connection device for enhancing the integrity of the steel frame.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to provide a connection device for enhancing the integrity of the steel frame, comprising:

[0005] An inner connecting frame, which is arranged inside each outer steel frame and is used to connect the inner sides of each outer steel frame;

[0006] An external connecting frame, which is arranged outside each external steel frame and is used to connect the outsides of each external steel frame;

[0007] A two-way adjustable connection component, the number of which is at least one, and the two-way adjustable connection component is arranged between the inner connecting frame and the outer connecting frame. The two-way adjustable connection component is used to connect the inner side of each external steel frame after the inner connecting frame connects the inner side of each external steel frame and connect the outer side of each external steel frame after the outer connecting frame connects the outer side of each external steel frame to enhance the integrity between each external steel frame.

[0008] A further improvement is that the two-way adjustment connection assembly includes an internally threaded rod, an externally threaded rod, and an adjustment connection piece, the internally threaded rod is arranged on the end face of the internal connection frame close to the external steel frame, the externally threaded rod is arranged on the end face of the external connection frame close to the external steel frame, one end of the adjustment connection piece is threadedly connected to the internally threaded rod, and the other end of the adjustment connection piece is threadedly connected to the externally threaded rod, and the adjustment connection piece is used to make the internally threaded rod and the externally threaded rod approach each other when rotating in one direction so that the internal connection frame and the external connection frame respectively press against the inner and outer sides of each external steel frame.

[0009] A further improvement is that the adjustment connecting piece includes an adjustment frame, an internal threaded hole, and an external threaded hole. The internal threaded hole is opened on one end of the adjustment frame for threaded connection with the internal threaded rod, and the external threaded hole is opened on the other end of the adjustment frame for threaded connection with the external threaded rod.

[0010] A further improvement is that the inner connecting frame comprises an inner connecting frame body and an inner slot provided on the inner connecting frame body and used for engaging with the inner side of the outer steel frame.

[0011] A further improvement is that the external connecting frame comprises an external connecting frame body and an external card slot provided on the external connecting frame body for engaging with the outer side of the external steel frame.

[0012] The utility model has the following beneficial effects:

[0013] The device of the utility model can be customized in the factory, can be quickly fixed during construction, can also save labor, and is convenient to operate on site. This device can greatly improve the connection stiffness between steel frames, so that the initial support has a stronger overall deformation resistance ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 It is a side sectional view of the adjustment frame in the utility model;

[0016] Figure 3 It is a top view of the adjustment frame in the utility model;

[0017] Figure numerals: 1, external steel frame; 21, internal connecting frame body; 22, internal slot; 23, external connecting frame body; 24, external slot; 31, internal threaded rod; 32, external threaded rod; 41, adjustment frame; 42, internal threaded hole; 43, external threaded hole. DETAILED DESCRIPTION

[0018] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] refer to Figures 1 to 3 As shown, a connection device for enhancing the integrity of a steel frame comprises:

[0020] An inner connecting frame, which is arranged on the inner side of each outer steel frame 1, and is used to connect the inner sides of each outer steel frame 1, and comprises an inner connecting frame body 21, and an inner card slot 22 provided on the inner connecting frame body 21 and used to engage with the inner side of the outer steel frame 1;

[0021] An external connecting frame, which is arranged outside each external steel frame 1, and is used to connect the outsides of each external steel frame. The external connecting frame includes an external connecting frame body 23, and an external card slot 24 provided on the external connecting frame body 23 and used for engaging with the outside of the external steel frame 1;

[0022] A two-way adjustable connection component, the number of which is at least one, and the two-way adjustable connection component is arranged between the inner connecting frame and the outer connecting frame. The two-way adjustable connection component is used to connect the inner side of each external steel frame 1 after the inner connecting frame connects the inner side of each external steel frame 1 and to connect the inner connecting frame with the outer connecting frame after the outer connecting frame connects the outer side of each external steel frame 1 to enhance the integrity between each external steel frame 1.

[0023] The bidirectional adjustment connection assembly includes an internal threaded rod 31, an external threaded rod 32, and an adjustment connection piece. The internal threaded rod 31 is arranged on the end face of the inner connecting frame close to the external steel frame 1, and the external threaded rod 32 is arranged on the end face of the external connecting frame close to the external steel frame 1. One end of the adjustment connection piece is threadedly connected to the internal threaded rod 31, and the other end of the adjustment connection piece is threadedly connected to the external threaded rod 32. The adjustment connection piece is used to make the internal threaded rod 31 and the external threaded rod 32 approach each other when rotating in one direction so that the internal connecting frame and the external connecting frame respectively press against the inner and outer sides of each external steel frame 1.

[0024] The adjusting connecting piece includes an adjusting frame 41, an internal threaded hole 42, and an external threaded hole 43. The internal threaded hole 42 is opened on one end of the adjusting frame 41 for threaded connection with the internal threaded rod 31, and the external threaded hole 43 is opened on the other end of the adjusting frame 41 for threaded connection with the external threaded rod 32.

[0025] The inner connecting frame body 21 and the outer connecting frame body 23 can be made of 14 mm thick steel plates. The widths of the inner card slots 22 and the outer card slots 24 are determined according to the width of the external steel frame 1, and the number of the inner card slots 22 and the outer card slots 24 is determined according to the number of external steel frames 1; when the number of external steel frames 1 is greater than two, a bidirectional adjustable connecting component can be set between the inner connecting frame and the outer connecting frame and between two adjacent external steel frames.

[0026] After the external steel frame is erected, the inner connecting frame and the outer connecting frame are placed inside and outside the external steel frame respectively, and the inner card slot 22 and the outer card slot 24 are respectively engaged with the inner and outer sides of the external steel frame, and then the inner threaded rod 31 and the outer threaded rod 32 are connected by adjusting the connecting piece, and the inner connecting frame and the outer connecting frame are tightened and fixed by rotating the adjusting connecting piece to enhance the integrity between each external steel frame 1. The device of the utility model can be customized in the factory, can be quickly fixed during construction, can also save labor, and is convenient to operate on site. This device can greatly improve the connection stiffness between steel frames, so that the initial support has a stronger overall ability to resist deformation.

[0027] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A connection device for enhancing the integrity of a steel frame, characterized in that: include: An inner connecting frame, which is arranged inside each outer steel frame and is used to connect the inner sides of each outer steel frame; An external connecting frame, which is arranged outside each external steel frame and is used to connect the outsides of each external steel frame; A two-way adjustable connection component, the number of which is at least one, and the two-way adjustable connection component is arranged between the inner connecting frame and the outer connecting frame. The two-way adjustable connection component is used to connect the inner side of each external steel frame after the inner connecting frame connects the inner side of each external steel frame and connect the outer side of each external steel frame after the outer connecting frame connects the outer side of each external steel frame to enhance the integrity between each external steel frame.

2. A connection device for enhancing the integrity of a steel frame according to claim 1, characterized in that: The two-way adjustment connection assembly includes an internal threaded rod, an external threaded rod, and an adjustment connection piece. The internal threaded rod is arranged on the end surface of the internal connection frame close to the external steel frame, and the external threaded rod is arranged on the end surface of the external connection frame close to the external steel frame. One end of the adjustment connection piece is threadedly connected to the internal threaded rod, and the other end of the adjustment connection piece is threadedly connected to the external threaded rod. The adjustment connection piece is used to make the internal threaded rod and the external threaded rod approach each other when rotating in one direction so that the internal connection frame and the external connection frame respectively press against the inner and outer sides of each external steel frame.

3. A connection device for enhancing the integrity of a steel frame according to claim 2, characterized in that: The adjusting connector includes an adjusting frame, an internal threaded hole, and an external threaded hole. The internal threaded hole is provided at one end of the adjusting frame for threaded connection with the internal threaded rod, and the external threaded hole is provided at the other end of the adjusting frame for threaded connection with the external threaded rod.

4. A connection device for enhancing the integrity of a steel frame according to claim 1, characterized in that: The inner connecting frame comprises an inner connecting frame body and an inner slot provided on the inner connecting frame body and used for engaging with the inner side of the outer steel frame.

5. A connection device for enhancing the integrity of a steel frame according to claim 1, characterized in that: The external connecting frame comprises an external connecting frame body and an external card slot which is arranged on the external connecting frame body and is used for carding with the outer side of the external steel frame.

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