Track traffic tunnel operation trolley

Abstract

The utility model relates to the technical field of trolleys, and provides a rail transit tunnel operation trolley which comprises a portal frame, a bearing beam and an arc-shaped formwork, the bearing beam is fixed to the top of the portal frame, and the formwork is located on the outer side of the portal frame and the outer side of the bearing beam and fixedly connected with the portal frame and the bearing beam. Pressure sensors are installed at the multiple joints of the portal, the bearing beam and the formwork, the multiple pressure sensors are symmetrically distributed, and a PLC electrically connected with the pressure sensors is installed on the portal. The beneficial effects of the utility model are that a worker can observe the stress of the pressure sensor through a mobile phone, so as to know the pouring process and whether the two sides of the trolley are symmetrically stressed or not in the pouring process, so that construction errors can be corrected in time, and the loss is reduced; in addition, obstacles in front of the pulleys can be swept in an air injection mode, so that the stable advancing of the trolley can be ensured, and the safety and the stability during construction are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, and relates to a rail transit tunnel operation trolley. Background Art

[0002] As an indispensable special equipment in the process of tunnel construction, the tunnel operation trolley is mainly used to form a lining of concrete or reinforced concrete inside the tunnel, that is, the inner wall of the tunnel. Its design and use play a crucial role in the safety, efficiency and quality of the entire tunnel project. The trolley not only needs to ensure the stability and reliability of the structure, but also needs to ensure the high efficiency and safety of the construction process.

[0003] When pouring the tunnel, the tunnel operation trolley pours symmetrically. However, the existing tunnel operation trolleys are not convenient for measuring the force conditions of multiple symmetric points on both sides of themselves, so it is not convenient for the staff to quickly judge whether the tunnel pouring meets the standard. Therefore, there is an urgent need for a rail transit tunnel operation trolley to solve the above problems. Summary of the Utility Model

[0004] Aiming at the above technical problems existing in the prior art, a rail transit tunnel operation trolley is provided, which solves the problem that it is not convenient to measure the force conditions of multiple symmetric points on both sides of the existing tunnel operation trolley, so it is not convenient for the staff to quickly judge whether the tunnel pouring meets the standard.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A rail transit tunnel operation trolley includes a gantry, a bearing beam and an arc-shaped formwork. The bearing beam is fixed on the top of the gantry, and the formwork is located outside the gantry and the bearing beam and is fixedly connected to them;

[0007] Pressure sensors are installed at multiple connection points of the gantry, the bearing beam and the formwork. The multiple pressure sensors are symmetrically distributed, and a PLC controller electrically connected to the pressure sensors is installed on the gantry;

[0008] Mounting plates are fixed at the legs of the gantry. A camera and an air jet pipe are installed at the bottom of each mounting plate. An air pump is also fixed on the gantry. The air outlet end of the air pump is fixed with a hose communicated with it. The end of the hose is communicated with multiple air jet pipes. The camera and the air pump are both electrically connected to the PLC controller.

[0009] The formwork includes a top formwork and two side formworks. The top formwork is fixedly connected to the bearing beam. The two side formworks are respectively spliced on both sides of the top formwork, and the side formworks are fixedly connected to the gantry.

[0010] A plurality of symmetrically distributed columns are fixed on the top of the bearing beam, the upper ends of the columns are fixedly connected to the top formwork, one oil cylinder and a plurality of lead screws are symmetrically installed on both sides of the portal frame, the ends of the oil cylinder and the plurality of lead screws are fixedly connected to the adjacent side formwork, and a plurality of the pressure sensors are respectively installed at the upper ends of the columns, the ends of the oil cylinders and the ends of the plurality of lead screws.

[0011] An alarm is fixed on the portal frame or the bearing beam, and the alarm is electrically connected to the PLC controller.

[0012] At least one camera and one air spray pipe are arranged at the bottom of each mounting plate, and the air spray pipe is in a Y shape.

[0013] Mounting holes for the portal frame to penetrate are formed in the mounting plate.

[0014] Pulleys are installed at the bottoms of the portal frame legs.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] For this kind of rail transit tunnel operation trolley, the staff can observe the force of the pressure sensors through the mobile phone, so as to understand the pouring process and whether the two sides of the trolley are symmetrically stressed during the pouring process. If the pressure difference obtained from the pressures measured by every two symmetric pressure sensors is within the preset pressure difference range, the mobile phone does not give a prompt; otherwise, the mobile phone will emit a ringtone to prompt the staff, so as to correct the construction error in time and reduce losses;

[0017] When the trolley is in use, the pulleys at the bottom of the portal frame will slide on the track. At the same time, the camera will take pictures of the road conditions in front of the pulleys, and compare the taken pictures with the pre-taken pictures. If they are the same, the trolley will continue to move forward; otherwise, the PLC controller will start the air pump, the air pump will draw in the outside air into the hose, and then convey the air flow to the air spray pipe, and the air spray pipe will spray out the air flow to remove obstacles, so as to ensure the stable forward movement of the trolley and enhance the safety and stability during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall front sectional structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 The partial structure schematic diagram at A;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the mounting plate of the utility model.

[0021] Markings in the figure: gantry 1, load-bearing beam 2, oil cylinder 3, lead screw 4, top formwork 5, side formwork 6, PLC controller 7, alarm 8, air pump 9, hose 10, mounting plate 11, camera 12, air jet pipe 13, pulley 14, mounting hole 15, column 16, pressure sensor 17. Detailed implementation

[0022] Please refer to Figures 1-3 , and further illustrate the embodiments of the present invention;

[0023] As Figures 1-2 shown, a working trolley for rail transit tunnels includes a gantry 1, a load-bearing beam 2, and an arc-shaped formwork. The load-bearing beam 2 is fixed to the top of the gantry 1, and the formwork is located outside the gantry 1 and the load-bearing beam 2 and is fixedly connected thereto; wherein, the formwork includes a top formwork 5 and two side formworks 6. The top formwork 5 is fixedly connected to the load-bearing beam 2, and the two side formworks 6 are respectively spliced on both sides of the top formwork 5, and the side formwork 6 is fixedly connected to the gantry 1. Multiple side formworks 6 can also be provided, depending on the actual situation. Pouring holes (not shown) are provided on both the top formwork 5 and the side formwork 6 to facilitate the entry of concrete into the pouring holes to pour the tunnel; Pulley 14 is installed at the bottom of the legs of the gantry 1, and the setting of the pulley 14 facilitates the movement of the gantry 1.

[0024] Pressure sensors 17 are installed at multiple connection points between the gantry 1, the load-bearing beam 2, and the formwork. The multiple pressure sensors 17 are symmetrically distributed. Specifically, multiple symmetrically distributed columns 16 are fixed to the top of the load-bearing beam 2, and the upper ends of the columns 16 are fixedly connected to the top formwork 5. An oil cylinder 3 and multiple lead screws 4 are symmetrically installed on both sides of the gantry 1, and the ends of the oil cylinder 3 and the multiple lead screws 4 are fixedly connected to the adjacent side formwork 6. The multiple pressure sensors 17 are respectively installed at the upper ends of the columns 16, the ends of the oil cylinder 3, and the ends of the multiple lead screws 4; And a PLC controller 7 electrically connected to the pressure sensors 17 is installed on the gantry 1, and the PLC controller 7 can be electrically connected to the mobile phone of the staff;

[0025] During the actual tunnel construction process, ensuring the symmetry of the forces on both sides of the trolley is crucial for ensuring the project quality and safety; Before pouring the tunnel, the trolley will be fixed and the formwork will be erected. At this time, the pressure sensors 17 will be subjected to the pressure of the formwork. The staff can observe the force conditions of the multiple pressure sensors 17 through the mobile phone or the PLC controller 7, and number the multiple pressure sensors 17 on the mobile phone or the PLC controller 7, such as a1, a2; b1, b2; c1, c2; d1, d2... to facilitate the staff to quickly judge the force conditions of multiple test points of the trolley.

[0026] When the pressures measured by every two symmetric pressure sensors 17 are basically equal, record the initial values of multiple pressure sensors 17, indicating that the preliminary work meets the standards. Then, use the PLC controller 7 to set the pressure difference range between every two symmetric pressure sensors 17, that is, the force deviation within the normal range at two symmetric points during tunnel pouring. Next, start the symmetric pouring of the tunnel. As the concrete continues to be poured into the formwork, the pressure on the pressure sensor 17 will change in real time, and the measured pressure data will be transmitted to the PLC controller 7, and the PLC controller 7 will then transmit it to the mobile phone. Therefore, the staff can observe the force on the pressure sensor 17 through the mobile phone, so as to understand the pouring process and whether the two sides of the trolley are symmetrically stressed during pouring. When the pressure difference obtained from the pressures measured by every two symmetric pressure sensors 17 is within the preset pressure difference range, the mobile phone does not give a prompt; otherwise, the mobile phone will ring to prompt the staff in order to correct construction errors in time and reduce losses.

[0027] In order for the staff to promptly discover uneven stress on both sides of the trolley (beyond the preset pressure difference range), an alarm 8 is fixed on the gantry 1 or the bearing beam 2. The alarm 8 is electrically connected to the PLC controller 7. The PLC controller 7 will start the alarm 8 to emit an alarm sound, and the staff will make timely adjustments after hearing it.

[0028] Such as Figure 1 and 3 As shown, mounting plates 11 are fixed at the legs of the gantry 1. In order for the mounting plates 11 to be stably installed at the legs of the gantry 1, mounting holes 15 for the gantry 1 to pass through are opened on the mounting plates 11. Cameras 12 and air nozzles 13 are installed at the bottom of each mounting plate 11. It should be noted that at least one camera 12 and one air nozzle 13 are provided at the bottom of each mounting plate 11. The air nozzle 13 is in a Y shape. Therefore, the air sprayed by the air nozzle 13 will be sprayed in front of and behind the pulley 14. And an air pump 9 is also fixed on the gantry 1. The air outlet end of the air pump 9 is fixed with a hose 10 communicating with it. The end of the hose 10 is connected to multiple air nozzles 13. The length of the hose 10 is long enough for the air nozzles 13 to spray air. The cameras 12 and the air pump 9 are both electrically connected to the PLC controller 7. When constructing the lining of the tunnel inner wall, the bottom of the tunnel is a dry road surface, and a track for the pulley 14 to travel is provided. The camera 12 is used to photograph the road conditions in front of the pulley 14, and the air sprayed by the air nozzle 13 is used to remove obstacles on the track in front of the pulley 14.

[0029] Before the trolley is used, a clean track photo is taken by the camera 12 and transmitted to the PLC controller 7 as a reference. When the trolley is in use, the pulley 14 at the bottom of the gantry 1 slides on the track. At the same time, the camera 12 takes pictures of the road conditions in front of the pulley 14 and compares the taken pictures with the reference. If they are the same, the trolley continues to move forward; otherwise, the PLC controller 7 starts the air pump 9. The air pump 9 pumps the outside air into the hose 10 and then conveys the air flow to the air jet pipe 13. The air jet pipe 13 sprays out the air flow to sweep away obstacles, thus ensuring the stable movement of the trolley and enhancing the safety and stability during construction.

Claims

1. A rail transit tunnel operation trolley, comprising a gantry (1), a bearing beam (2) and an arc-shaped formwork. The bearing beam (2) is fixed to the top of the gantry (1), and the formwork is located outside the gantry (1) and the bearing beam (2) and is fixedly connected thereto. It is characterized in that: Pressure sensors (17) are installed at multiple connection points of the gantry (1), the bearing beam (2) and the formwork. The multiple pressure sensors (17) are symmetrically distributed, and a PLC controller (7) electrically connected to the pressure sensors (17) is installed on the gantry (1); Mounting plates (11) are fixed at the legs of the gantry (1). Cameras (12) and air spray pipes (13) are installed at the bottoms of the mounting plates (11). An air pump (9) is also fixed on the gantry (1). The air outlet end of the air pump (9) is fixed with a hose (10) communicating therewith. The end of the hose (10) is connected to multiple air spray pipes (13). The cameras (12) and the air pump (9) are both electrically connected to the PLC controller (7).

2. The one-track traffic tunnel operation trolley according to claim 1, characterized in that: The formwork comprises a top form (5) and two side forms (6). The top form (5) is fixedly connected to the bearing beam (2). The two side forms (6) are respectively spliced on both sides of the top form (5), and the side forms (6) are fixedly connected to the gantry (1).

3. The one-track traffic tunnel operation trolley according to claim 2, wherein: Multiple symmetrically distributed columns (16) are fixed to the top of the bearing beam (2). The upper ends of the columns (16) are fixedly connected to the top form (5). An oil cylinder (3) and multiple lead screws (4) are symmetrically installed on both sides of the gantry (1). The ends of the oil cylinder (3) and the multiple lead screws (4) are fixedly connected to the adjacent side form (6). The multiple pressure sensors (17) are respectively installed at the upper ends of the columns (16), the ends of the oil cylinder (3) and the ends of the multiple lead screws (4).

4. A rail transit tunnel operation trolley according to claim 1, characterized in that: An alarm (8) is fixed on the gantry (1) or the bearing beam (2). The alarm (8) is electrically connected to the PLC controller (7).

5. A rail transit tunnel operation trolley according to claim 1, characterized in that: At least one camera (12) and one air spray pipe (13) are provided at the bottom of each mounting plate (11). The air spray pipe (13) is in a Y shape.

6. The one-track traffic tunnel operation trolley according to claim 1, characterized in that: Mounting holes (15) for the gantry (1) to pass through are formed in the mounting plates (11).

7. The operation trolley for rail transit tunnels according to claim 1, characterized in that: Wheels (14) are installed at the bottoms of the legs of the gantry (1).

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