Anchoring and shotcreting device for deep and large foundation pit

Abstract

The utility model relates to an anchoring and shotcreting device for a deep and large foundation pit. The anchoring and shotcreting device comprises a vehicle body, parallel rails, a rotating spherical hinge base, a hydraulic lifting support, a fixed sleeve and a hanging arm. Transverse movement of the hydraulic lifting support on the vehicle body is achieved by rotating the spherical hinge base and the parallel rail. Meanwhile, a gun head of the spray gun is fixed through a fixing sleeve arranged on the side face of the top end of the hydraulic lifting support, and the spray gun can conduct accurate anchoring and shotcreting supporting operation on the side wall of the deep and large foundation pit in a large area by combining the lifting function of the hydraulic lifting support; the hanging arm is fixedly embedded in the top end of the hydraulic lifting support, the hook is arranged on the hanging arm, and the lifting and movable characteristics of the hydraulic lifting support are utilized, so that the hook can hook the reinforcing mesh, the mesh hanging operation is assisted, and the efficiency and the safety of the whole anchor-shotcrete supporting operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shotcrete support, and particularly relates to a shotcrete device for deep and large foundation pits. Background Art

[0002] The statements herein only provide the background art related to the utility model, and do not necessarily constitute the prior art.

[0003] As the most effective way of urban transportation, the scale of the subway line network has been continuously expanded, and the number and coverage area of subway lines have also been increased; among them, the subway station, as the hub project of the subway line, occupies a large space. During the construction of the subway station, the open cut method is usually used for the excavation operation of deep and large foundation pits. During the excavation operation, it is necessary to carry out shotcrete support with wire mesh on the side walls of the foundation pit.

[0004] Currently, the shotcrete support with wire mesh usually relies on an excavator or a mounted bracket, and the wire mesh is hung and the concrete is sprayed manually for the support operation. However, in this process, on the one hand, due to the limitation of human height, it is necessary to climb up and down the mounted bracket many times, which is time-consuming and laborious, and there is a safety hazard of falling; on the other hand, holding the sprayed concrete manually has a large working intensity, and the dust of the sprayed concrete and the vibration during the spraying process cause great physical damage to the construction workers. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a shotcrete device for deep and large foundation pits, which can assist in the wire mesh hanging operation and can accurately support a large area of the side wall of the foundation pit, so as to efficiently complete the shotcrete support operation with wire mesh.

[0006] The purpose of the utility model is to provide a shotcrete device for deep and large foundation pits, which includes a vehicle body, parallel tracks, a rotating ball hinge base, a hydraulic lifting bracket, a fixed sleeve and a hanging arm; the vehicle body includes a chassis, the parallel tracks are arranged on the chassis, the rotating ball hinge base is fixedly embedded on the parallel tracks, the bottom end of the hydraulic lifting bracket is fixedly embedded on the rotating ball hinge base, and the fixed sleeve is fixedly connected to the side surface of the upper end of the hydraulic lifting bracket; one end of the hanging arm is a ball hinge structure and is fixedly connected to the top end of the hydraulic lifting bracket, and a hook is arranged at the other end of the hanging arm.

[0007] As a further technical solution, the vehicle body further includes two crawler wheels and a wheel bearing, and the two crawler wheels are fixedly connected through the wheel bearing.

[0008] As a further technical solution, the chassis is arranged above the wheel bearing and is fixedly connected to the wheel bearing.

[0009] As a further technical solution, the parallel tracks are parallel to the two crawler wheels.

[0010] As a further technical solution, power equipment and driving equipment are respectively arranged at both ends of the parallel tracks.

[0011] As a further technical solution, threads are provided on the outer surface of the fixed sleeve with openings at both ends.

[0012] As a further technical solution, fixed locking rings are provided at the openings at both ends of the fixed sleeve.

[0013] As a further technical solution, the fixed sleeve is made of aluminum alloy material.

[0014] As a further technical solution, the hook is a movable hook.

[0015] As a further technical solution, the hanging arm, the chassis and the wheel bearings are all made of stainless steel material. The beneficial effects of the above one or more technical solutions are as follows:

[0016] (1) In this embodiment, the rotary ball hinge base is fixedly embedded in the horizontal track on the vehicle chassis, and the hydraulic lifting bracket is arranged on the rotary ball hinge base, so that the hydraulic lifting bracket can move horizontally on the horizontal track; and the fixed sleeve arranged on the side surface of the top end of the hydraulic lifting bracket, by fixing the spray gun nozzle and combining with the lifting function of the hydraulic lifting bracket itself, enables the spray gun to perform precise shotcrete support operations on the side walls of deep and large foundation pits in a large area, thereby improving the efficiency and safety of the entire shotcrete support operation process.

[0017] (2) In this embodiment, a hanging arm is fixedly installed at the top end of the hydraulic lifting bracket, and a movable hook is arranged at the other end of the hanging arm. By using the characteristics of the hydraulic lifting bracket that can be lifted and moved, the movable hook can hook the steel mesh, and assist in the operation of hanging the mesh. Description of the Drawings

[0018] The specification drawings forming a part of this application are used to provide a further understanding of this application. For the convenience of understanding, the proportions between various parts of the structure are adjusted. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0019] Figure 1 It is the overall structure diagram of an anchor shotcrete device for deep and large foundation pits of the present utility model.

[0020] Figure 2 It is the structure diagram of the vehicle body in an anchor shotcrete device for deep and large foundation pits of the present utility model.

[0021] Figure 3This is a partial device structure diagram of an anchor shotcreting device for deep and large foundation pits in the present utility model.

[0022] Figure 4 This is a schematic structural diagram of a hook in an anchor shotcreting device for deep and large foundation pits in the present utility model.

[0023] Among them, 1. vehicle body, 2. parallel track, 3. rotating ball hinge base, 4. hydraulic lifting support, 5. fixed sleeve, 6. hanging arm, 7. chassis, 8. hook, 9. crawler wheel, 10. wheel bearing, 11. power equipment, 12. driving equipment, 13. fixed locking ring, 14. ball hinge structure. Specific implementation manner

[0024] The following combines the attached Figures 1-4 , and clearly and completely describes the technical solutions in the embodiments of the present utility model.

[0025] Embodiment 1

[0026] Referring to Figures 1-4 , an anchor shotcreting device for deep and large foundation pits includes a vehicle body 1, a parallel track 2, a rotating ball hinge base 3, a hydraulic lifting support 4, a fixed sleeve 5 and a hanging arm 6.

[0027] Referring to Figure 2 , the vehicle body 1 includes a chassis 7, two crawler wheels 9 and wheel bearings 10. Specifically, the two crawler wheels 9 are completely identical and parallel to each other, and a certain number of wheels are provided in the two crawler wheels 9, and the two crawler wheels 9 are fixedly connected through the wheel bearings 10 to realize the synchronous operation of the two crawler wheels 9. At the same time, the chassis 7 is arranged above the wheel bearings 10 and is fixedly connected to the wheel bearings 10 by welding to form a complete vehicle body 1; and the chassis 7 provides an installation space for installing other devices. At the same time, the crawler wheels 9 are used because they can freely walk on the uneven ground surface. Due to various construction operations in the deep and large foundation pits, there are many potholed sections on the ground, and the crawler wheels 9 will not be affected by such sections, so as to ensure the normal progress of the anchor shotcreting support operation; at the same time, the control method and driving method during the operation of the vehicle body 1 can adopt the existing technology, and there are no requirements here.

[0028] Referring to Figure 1 and 3, the parallel tracks 2 are arranged on the chassis 7 and fixed by welding. Among them, the direction of the parallel tracks 2 is the same as the running direction of the two crawler wheels 9, that is, the parallel tracks 2 are parallel to the two crawler wheels 9. The purpose of this setting is that during the operation of the current device through the vehicle body 1, the traveling directions of the two crawler wheels 9 are mostly parallel to the plane where the side wall of the foundation pit is located. Therefore, the tracks on the parallel tracks 2 are also parallel to the plane where the side wall of the foundation pit is located. This enables the device installed on the parallel tracks 2 to move laterally whether the vehicle body 1 is in a traveling state or a stationary state, thereby expanding the operation range of the side wall of the foundation pit.

[0029] At the same time, the rotating ball hinge base 3 is arranged on the parallel tracks 2 by embedding. Specifically, the side of the rotating ball hinge base 3 is movably embedded and connected to the track inside the parallel tracks 2, enabling the rotating ball hinge base 3 to move on the parallel tracks 2.

[0030] A hydraulic lifting bracket 4 is arranged on the rotating ball hinge base 3, that is, the bottom end of the hydraulic lifting bracket 4 is arranged on the rotating ball hinge base 3 by embedding. Through this setting, the hydraulic lifting bracket 4 can achieve rotation by using the connection method with the rotating ball hinge base 3.

[0031] A fixed sleeve 5 is fixedly connected to the side of the upper end of the hydraulic lifting bracket 4. In this embodiment, the fixed sleeve 5 is used to fix the nozzle of the spray gun. Specifically, threads are provided on the outer surface of the two open ends of the fixed sleeve 5, and a fixed lock ring 13 is arranged at the opening. At the same time, threads matching those on the outer surface are provided on the inner surface of the fixed lock ring 13. When the nozzle of the spray gun passes through the fixed sleeve 5, the nozzle of the spray gun can be fixed by tightening the fixed lock rings 13 on both sides. By setting the material of the fixed sleeve 5 as aluminum alloy, the fixed sleeve 5 can further fix the nozzle of the spray gun.

[0032] Due to the rotatable feature of the hydraulic lifting bracket 4, its own lifting function, and the method of the fixed sleeve 5 for fixing the nozzle of the spray gun, the device can perform precise large - range anchor - jet support operations on the side wall of the foundation pit. Compared with the conventional anchor - jet support operation method, it is no longer necessary for workers to carry out anchor - jet support operations by climbing on the supporting brackets, and the problem of potential safety accidents for workers is also avoided.

[0033] At both ends of the parallel track 2, there are respectively a power device 11 and a driving device 12; that is, the power device 11 and the driving device 12 are respectively arranged at both ends of the upper track of the parallel track 2; among them, the power device 11 provides power for the travel of the crawler wheels 9, and the driving device 12 is used to provide power for the operation of the equipment (hydraulic lifting support 4) installed on the parallel track 2. At the same time, the power device 11 and the driving device 12 can also limit the equipment running on the parallel track 2 to prevent the equipment (hydraulic lifting support 4) from falling off the parallel track 2.

[0034] Refer to Figure 4 , one end of the hanging arm 6 is a ball hinge structure 14, which is fixedly connected to the top end of the hydraulic lifting support 4, and a hook 8 is arranged at the other end of the hanging arm 6. Specifically, the ball hinge structure 14 at one end of the hanging arm 6 is used for fixedly connecting with the top end of the hydraulic lifting support 4; this fixed connection method can set a corresponding ball hinge support at the top end of the hydraulic lifting support 4 or set its top into a ball hinge support structure to achieve the fixed connection between the two; through the fixed connection method, the hanging arm 6 can rotate in all directions and upward, thereby increasing the operating range of the hanging arm 6.

[0035] The hook 8 at the other end of the hanging arm 6 is a movable hook, and is arranged inside the hanging arm 6 in an embedded manner, so that the hook 8 can rotate. At the same time, the hook 8 is used to hook the steel mesh sheet, and through the connection method between the parallel track 2, the rotating ball hinge base 3, the hydraulic lifting support 4 and the hanging arm 6 and its structure, the position that the steel mesh sheet can reach is expanded, so as to assist the net hanging operation.

[0036] Device usage steps: First, use the hook 8 on the hanging arm 6 to hook the steel mesh sheet, and through the structures such as the parallel track 2, the hydraulic lifting support 4, the hanging arm 6 and their connections, operating methods and operable ranges, transfer the steel mesh sheet to the corresponding position, so as to realize the auxiliary process of the net hanging process. After the net hanging is completed, fix the spray gun nozzle on the fixed sleeve 5, and at the same time, the vehicle body 1 advances along the side wall of the foundation pit. During the operation of the vehicle body 1, by adjusting the hydraulic state of the hydraulic lifting support 4 and the position of the rotating ball hinge base 3 on the parallel track 2, the spray gun nozzle can achieve large-area and precise support for the side wall of the foundation pit.

[0037] At the same time, when the vehicle body 1 is at the edge of a single side wall of the foundation pit or stops in place or cannot move forward, the position of the rotating ball hinge base 3 on the parallel track 2 can still be adjusted so that the spray gun nozzle can support the side wall or the edge of the side wall of the foundation pit at a farther distance in the advancing direction of the vehicle body 1.

[0038] In order to ensure that the device has sufficient supporting force and service life, the hanging arm 6, the chassis 7, and the wheel bearing 10 are all made of stainless steel material, so as to reduce the influence of the complex environment of the deep foundation pit on the device and reduce the damage degree to the device.

[0039] Although the specific implementation manners of the present invention have been described above in conjunction with the accompanying drawings, they do not limit the protection scope of the present invention. Those skilled in the art should understand that, based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. An anchor shotcreting device for deep and large foundation pits, characterized in that, It includes a vehicle body, parallel tracks, a rotary ball hinge base, a hydraulic lifting bracket, a fixed sleeve and a hanging arm; the vehicle body includes a chassis, the parallel tracks are arranged on the chassis, the rotary ball hinge base is fixedly embedded on the parallel tracks, the bottom end of the hydraulic lifting bracket is fixedly embedded on the rotary ball hinge base, and the fixed sleeve is fixedly connected to the side surface of the upper end of the hydraulic lifting bracket; one end of the hanging arm is a ball hinge structure and is fixedly connected to the top end of the hydraulic lifting bracket, and a hook is arranged at the other end of the hanging arm.

2. The shotcrete device for a deep foundation pit according to claim 1, characterized in that, The vehicle body further includes two crawler wheels and wheel bearings, and the two crawler wheels are fixedly connected through the wheel bearings.

3. The shotcrete and bolting device for deep foundation pits according to claim 1, characterized in that, The chassis is arranged above the wheel bearings and is fixedly connected to the wheel bearings.

4. A shotcrete and bolting device for deep and large foundation pits according to claim 1, characterized in that, The parallel tracks are parallel to the two crawler wheels.

5. The shotcrete and bolting device for deep and large foundation pits according to claim 1, characterized in that, Power equipment and drive equipment are respectively arranged at both ends of the parallel tracks.

6. The shotcrete device for a deep and large foundation pit according to claim 1, characterized in that, Threads are provided on the outer surface of the open ends of the fixed sleeve.

7. The shotcrete support device for deep foundation pit according to claim 6, characterized in that Fixed locking rings are arranged at the open ends of both ends of the fixed sleeve.

8. A shotcreting device for a deep and large foundation pit according to claim 7, characterized in that, The fixed sleeve is made of aluminum alloy material.

9. The shotcreting device for deep and large foundation pits according to claim 1, characterized in that, The hook is a movable hook.

10. The shotcrete and bolting device for deep and large foundation pits according to claim 1, characterized in that, The hanging arm, the chassis and the wheel bearings are all made of stainless steel material.

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