Tunnel sprayed concrete springback material collecting device

Abstract

The utility model relates to the technical field of concrete spraying, in particular to a tunnel sprayed concrete springback material collecting device which comprises a collecting tank, a group of winding rollers and two groups of unfolding connecting arms are respectively and rotatably mounted on two sides of the collecting tank along the long edge direction of the collecting tank, a group of collecting cloth is wound on the winding rollers, and the unfolding connecting arms comprise two groups of unfolding connecting arms. One ends of the two groups of unfolding connecting arms are rotatably mounted on the outer wall of the collecting tank, the other ends of the two groups of unfolding connecting arms are rotatably connected with the extending plates, and the extending plates are fixedly connected with one ends of collecting cloth on the corresponding winding rollers. And the collecting cloth is unfolded, and the sprayed and rebounded concrete is collected into the collecting tank by the collecting cloth, so that the collecting efficiency of the rebounded material is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete spraying, in particular to a tunnel sprayed concrete rebound material collecting device. Background Art

[0002] Shotcrete is a construction method that uses a pressure spray gun to spray fine stone concrete. It is often used to pour tunnel linings, walls, ceilings and other thin-walled structures or other structural linings as well as protective layers for steel structures. Shotcrete is formed by loading pre-mixed cement, sand, gravel, water and a certain amount of admixtures into a sprayer, using high-pressure air to send it to the nozzle and mix it with an accelerator, and then spraying it at a high speed onto the surface of rock or concrete.

[0003] At present, the rebound rate of tunnel shotcrete is 30%. In sections with damaged surrounding rock or water seepage, the rebound rate is between 60-80% or even higher. These rebound materials are not recycled or the recycling rate is low, which increases construction costs. Utility Model Content

[0004] The utility model aims to provide a tunnel shotcrete rebound material collection device, which is used to solve the problem that the current tunnel shotcrete rebound material rate is 30%, and the rebound rate in the surrounding rock damage and surrounding rock water seepage section is between 60-80% or even higher, and these rebound materials are not recycled or the recycling rate is low, which increases the construction cost.

[0005] To achieve the above-mentioned purpose, the utility model provides a tunnel shotcrete rebound material collection device, comprising a collection trough, wherein a group of winding rollers and unfolding connecting arms are rotatably installed on both sides of the collection trough along the long side direction, a group of collecting cloth is wound around the winding roller, and the unfolding connecting arms include two groups of unfolding connecting arms, one end of the two groups of unfolding connecting arms is rotatably installed on the outer wall of the collection trough, and the other end is rotatably connected to an extension plate, and the extension plate is fixedly connected to one end of the collecting cloth on the corresponding winding roller;

[0006] When the unfolding connecting arm is unfolded, the unfolding connecting arm is in an inclined state, driving the extension plate away from the collecting tank, and at the same time unfolding the collecting cloth, so that the sprayed rebounded concrete is collected into the collecting tank by the collecting cloth.

[0007] As a further solution of the utility model, the collecting cloth is thickened Aus cloth.

[0008] As a further solution of the utility model, the unfolding connecting arm includes two groups of connecting arms, and the proximal ends of the two groups of connecting arms are rotatably connected and fixed by locking bolts.

[0009] As a further solution of the present invention, the collecting tank is U-shaped.

[0010] Compared with the prior art, the utility model designs a collecting trough, and arranges a collecting cloth, a winding roller and an unfolding connecting arm at both ends of the collecting trough. The collecting cloth is unfolded while the extending plate is driven away from the collecting trough by the unfolding connecting arm. The collecting cloth collects the sprayed rebound concrete into the collecting trough, and the unfolding area of ​​the unfolding connecting arm is adjusted accordingly. This solves the problem that the current rebound rate of tunnel shotcrete is 30%, and the rebound rate in sections with damaged surrounding rock and surrounding rock leakage is between 60-80% or even higher. These rebound materials are not recycled or the recycling rate is low, which increases the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a structural schematic diagram of a tunnel shotcrete rebound material collecting device.

[0012] Figure 2 It is a schematic diagram of the unfolded state of the unfolded connecting arm in the utility model.

[0013] In the attached drawings: 1, collecting trough; 2, winding roller; 3, collecting cloth; 4, unfolding connecting arm; 401, connecting arm; 402, locking bolt; 5, extending plate. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0015] like Figure 1 and Figure 2 As shown, in an embodiment of the utility model, a tunnel shotcrete rebound material collection device comprises a collection tank 1, wherein a group of winding rollers 2 and unfolding connecting arms are rotatably mounted on both sides of the collection tank 1 along the long side direction thereof, wherein a group of collecting cloth 43 is wound around the winding roller 2, and the unfolding connecting arms comprise two groups of unfolding connecting arms, wherein one end of the two groups of unfolding connecting arms is rotatably mounted on the outer wall of the collection tank 1, and the other end is rotatably connected to an extension plate 5, and the extension plate 5 is fixedly connected to one end of the collecting cloth 43 on the corresponding winding roller 2;

[0016] When the unfolding connecting arm is unfolded, the unfolding connecting arm is in an inclined state, driving the extension plate 5 away from the collecting tank 1, and unfolding the collecting cloth 43, so that the sprayed rebounded concrete is collected into the collecting tank 1 by the collecting cloth 43;

[0017] In the utility model, the unfolding area of ​​the unfolding connecting arm can be adjusted accordingly according to the width of the collecting area, and the winding roller 2 can wind and collect the collecting cloth 43 to keep the collecting cloth 43 in a stretched state.

[0018] like Figure 1 As shown, in the embodiment of the present invention, the collecting cloth 43 is thickened Austenite with wear-resistant properties.

[0019] like Figure 1 and Figure 2 As shown, in an embodiment of the utility model, the unfolding connecting arm includes two groups of connecting arms 401, and the proximal ends of the two groups of connecting arms 401 are rotatably connected and fixed by locking bolts 402. The locking bolts 402 can fix the two groups of connecting arms 401 in the unfolding connecting arm at any angle, thereby adjusting the position of the extended plate 5.

[0020] like Figure 1 As shown, in the embodiment of the utility model, the collecting tank 1 is U-shaped, so that the collecting tank 1 is easy to be placed on the ground.

[0021] In summary, the utility model designs a collecting trough 1, and arranges a collecting cloth 43, a winding roller 2 and an unfolding connecting arm at both ends of the collecting trough 1. The collecting cloth 43 is unfolded while the extending plate 5 is driven away from the collecting trough 1 by the unfolding connecting arm. The collecting cloth 43 collects the sprayed rebound concrete into the collecting trough 1, and the unfolding area of ​​the unfolding connecting arm is adjusted accordingly. This solves the problem that the current rebound rate of tunnel shotcrete is 30%, and the rebound rate in sections with damaged surrounding rock and surrounding rock leakage is between 60-80% or even higher, and these rebound materials are not recycled or the recycling rate is low, which increases the construction cost.

[0022] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A tunnel shotcrete rebound material collection device, characterized in that: It comprises a collecting trough, wherein a group of winding rollers and unfolding connecting arms are rotatably mounted on both sides of the collecting trough along the long side direction thereof, a group of collecting cloth is wound around the winding roller, and the unfolding connecting arms comprise two groups of unfolding connecting arms, one end of the two groups of unfolding connecting arms is rotatably mounted on the outer wall of the collecting trough, and the other end is rotatably connected to an extension plate, and the extension plate is fixedly connected to one end of the collecting cloth on the corresponding winding roller; When the unfolding connecting arm is unfolded, the unfolding connecting arm is in an inclined state, driving the extension plate away from the collecting tank, and at the same time unfolding the collecting cloth, so that the sprayed rebounded concrete is collected into the collecting tank by the collecting cloth.

2. A tunnel shotcrete rebound material collection device according to claim 1, characterized in that: The collecting cloth is thickened AOS cloth.

3. The tunnel shotcrete rebound material collection device according to claim 1, characterized in that: The unfolding connecting arm comprises two groups of connecting arms, and the proximal ends of the two groups of connecting arms are rotatably connected and fixed by locking bolts.

4. The tunnel shotcrete rebound material collection device according to claim 1, characterized in that: The collecting tank is U-shaped.

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