Rapid binding device for tunnel support reinforcing mesh

Abstract

The utility model discloses a tunnel support reinforcing mesh fast binding device which comprises a base plate (1), a plurality of rails (2) which are connected transversely and longitudinally are arranged on the front face of the base plate (1), long-strip-shaped holes (21) are formed in the rails (2), a plurality of fixing bolts (22) are arranged in the long-strip-shaped holes (21) in a penetrating mode, and calibration plates (3) which are perpendicular to the base plate (1) are arranged on the side face and the bottom face of the base plate (1). The utility model has the characteristics that the construction cost is effectively reduced and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a tunnel supporting device, in particular to a tunnel supporting steel bar mesh quick binding device. Background Art

[0002] During mountain tunnel excavation and construction, most tunnel linings are constructed with plain concrete to withstand the structural stresses. However, due to the cold, damp conditions inside tunnels, coupled with the shrinkage of concrete itself, cracks are very likely to form in the tunnel lining, particularly in the sidewalls. These cracks gradually develop and spread, eventually penetrating the thickness of the structure, causing water leakage and further exacerbating the cracking, impacting safety. Therefore, during the initial support construction of the tunnel, steel mesh is added to the inner edge of the lining in the crack-prone sidewalls to prevent these cracks.

[0003] Traditional tunnel primary support steel mesh requires manual on-site measurement of the spacing of each piece according to the designed spacing, and then the steel bars are tied and welded. Due to the large number of steel bars, the spacing of horizontal and vertical bars is difficult to control, which is not only time-consuming and labor-intensive, but also requires a lot of labor and has high labor costs, which brings certain difficulties to the installation of the steel mesh. Utility Model Content

[0004] The purpose of the utility model is to provide a tunnel support steel mesh fast binding device, which has the characteristics of effectively reducing construction costs and improving work efficiency.

[0005] The technical solution of the utility model is: a tunnel support steel mesh quick binding device, including a base plate, the front of the base plate is provided with a plurality of rails connected to each other horizontally and vertically, the rails are provided with long holes, and a plurality of fixing bolts are passed through the long holes, and the side and bottom surfaces of the base plate are provided with calibration plates distributed perpendicular to the base plate.

[0006] In the aforementioned tunnel support steel mesh quick binding device, five tracks are used, with two tracks arranged horizontally and three tracks arranged longitudinally.

[0007] In the aforementioned tunnel support steel mesh quick binding device, the fixing bolts are arranged in the elongated holes according to the mesh construction spacing.

[0008] In the aforementioned tunnel support steel mesh quick binding device, the end of the track is connected to the base plate through rivets.

[0009] In the aforementioned tunnel support steel mesh quick binding device, the base plate is a hollow ring structure.

[0010] In the aforementioned tunnel support steel mesh quick binding device, the back side of the base plate is provided with inclined distributed legs, one end of the legs is connected to the base plate, and the other end of the legs is supported on the ground.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model has a simple structure. The position of the fixing bolt is adjusted according to the needs, and then the steel bar is pressed against the fixing bolt and the mesh is tied or welded. It is quick and convenient to make, simple to operate and labor-saving. It solves the disadvantage that the size of each steel mesh needs to be measured, saves mesh processing time, reduces labor input, speeds up the installation time of steel strand tensioning, and reduces costs.

[0013] Therefore, the utility model has the characteristics of effectively reducing construction costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the construction effect of the present utility model.

[0015] Figure 2 It is the main view of the present utility model.

[0016] Figure 3 yes Figure 2 Cross-section of AA.

[0017] Figure 4 It is a structural diagram of the substrate.

[0018] Figure 5 It is a schematic diagram of the track structure.

[0019] The markings in the accompanying drawings are: 1. base plate; 2. track; 21. long hole; 22. fixing bolt; 3. calibration plate; 4. support leg; 5. steel bar. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] Example:

[0023] like Figure 1-Figure 5 As shown, a tunnel support steel mesh quick binding device includes a base plate 1, a front surface of the base plate 1 is provided with a plurality of rails 2 connected to each other horizontally and vertically, the rails 2 are provided with long holes 21, and a plurality of fixing bolts 22 are passed through the long holes 21. The side and bottom surfaces of the base plate 1 are provided with calibration plates 3 distributed perpendicular to the base plate 1.

[0024] The base plate 1, rails 2, and calibration plate 3 are assembled. The spacing between the rails 2 can be adjusted according to the size of the steel mesh. The fixing bolts 22 are arranged within the elongated holes 21 of the rails 2 according to the mesh installation spacing. The position and spacing of the horizontal and vertical fixing bolts 22 can be adjusted arbitrarily. After the assembly is assembled, the steel bars 5 are placed in the locations of the installed fixing bolts 22, so that they are closely aligned with the fixing bolts 22 and one end of the steel bar 5 is aligned with the calibration plate 3. After the steel bars 5 are arranged in a mesh shape, they are then welded or tied together.

[0025] According to the length of the fixing bolts 22, 5-10 pieces of steel bar 5 mesh can be fixed at the same time, and batch binding or welding and other processing operations can be carried out, thereby achieving the purpose of saving labor and fast operation, solving the problem of needing to measure the size of the steel bar 5 each time it is placed, and the method of use is simple, the operation is safe and reliable, and can effectively reduce construction costs and improve work efficiency.

[0026] The calibration plate 3 is used to align the installation surfaces of the track 2 and the steel bars 5, so that the installation of the track 2 and the steel bars 5 remains on the same plane and is arranged more neatly.

[0027] In this embodiment, the rails 2 are five, with two rails 2 arranged horizontally and three rails 2 arranged longitudinally. This design structure is stable and the number of fixed steel bars 5 can meet the requirements.

[0028] The ends of the rails 2 are connected to the base plate 1 via rivets.

[0029] The base plate 1 is a hollow ring structure, which is convenient for welding and bundling of the steel bars 5.

[0030] The back of the base plate 1 is provided with an inclined support leg 4, one end of the support leg 4 is connected to the base plate 1, and the other end of the support leg 4 is supported on the ground. The support leg 4 is provided to support the base plate 1 to ensure stability during operation.

[0031] The parts not described in detail in this utility model are prior art and thus will not be elaborated here.

Claims

1. A tunnel support steel mesh rapid binding device, characterized by: The invention comprises a base plate (1), a front surface of the base plate (1) is provided with a plurality of rails (2) connected to each other horizontally and vertically, the rails (2) are provided with elongated holes (21), a plurality of fixing bolts (22) are passed through the elongated holes (21), and the side surfaces and bottom surface of the base plate (1) are both provided with calibration plates (3) distributed perpendicularly to the base plate (1).

2. A tunnel support steel mesh quick binding device according to claim 1, characterized in that: The rails (2) are five in number, with two rails (2) arranged transversely and three rails (2) arranged longitudinally.

3. A tunnel support steel mesh quick binding device according to claim 1, characterized in that: The fixing bolts (22) are arranged in the elongated holes (21) according to the mesh construction spacing.

4. A tunnel support steel mesh rapid binding device according to claim 1, characterized in that: The ends of the track (2) are connected to the base plate (1) via rivets.

5. The tunnel support steel mesh quick binding device according to claim 1, characterized in that: The substrate (1) is a hollow ring structure.

6. A tunnel support steel mesh quick binding device according to claim 1, characterized in that: The back of the base plate (1) is provided with inclined supporting legs (4), one end of the supporting legs (4) is connected to the base plate (1), and the other end of the supporting legs (4) is supported on the ground.

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