An emergency parking zone through a straight tunnel platform truck

Abstract

The utility model relates to a kind of emergency parking zone through straight tunnel platform truck in the tunnel construction equipment field, arch mould group formed by top die, two middle edge mould and two bottom edge mould are sequentially rotated and connected, and portal frame formed by crossbeam and two uprights;The bottom end of portal frame is equipped with the walking system that can be positioned along tunnel straight tunnel longitudinal and transverse movement;The outer side of the middle part column body of two uprights is fixed with cantilever beam, and between the outer end of cantilever beam and the corresponding end of crossbeam, fixed connection has inclined brace;The lower surface of top die is fixed with mould frame, and between mould frame and crossbeam, connecting has lifting cylinder, the lower end of two middle edge mould is respectively with the upper end of two bottom edge mould through pin shaft detachable hinged, and the outer end lower surface of cantilever beam is detachably connected with auxiliary leg;Between middle edge mould and corresponding inclined brace, and between bottom edge mould and corresponding auxiliary leg, detachably connected have top rod;The platform truck can ensure that platform truck supports stable, reduce dismounting step simultaneously, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment, and in particular to an emergency parking lane tunnel trolley. Background Technology

[0002] In tunnel construction, tunnels longer than 500 meters typically require emergency stopping lanes at regular intervals. These lanes are generally about 3 meters wider than the main tunnel, and their cross-sections differ significantly, placing special demands on the secondary lining construction equipment. Traditional emergency stopping lane construction utilizes the back formwork of the main tunnel trolley. This method requires the main tunnel trolley, and the back formwork installation can only be carried out inside the tunnel. After the emergency stopping lane construction is completed, the back formwork must be removed again. With multiple emergency stopping lanes within the tunnel, repeated disassembly and assembly not only consumes a lot of time but also affects the construction progress. Furthermore, skipping the emergency stopping lane lining will significantly increase the later construction costs should the arch or surrounding rock deform. Another construction method is to separately construct a tunnel-through trolley. However, previous tunnel-through trolleys have numerous disassembly and installation steps when crossing the main tunnel, resulting in complex operations, high costs, and limited construction progress. There is an urgent need for new types of trolleys to solve these problems. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art and solve the existing technical problems, this utility model discloses an emergency parking lane tunnel trolley, which can ensure the stability of the trolley support, reduce the disassembly and assembly steps, and improve construction efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An emergency stopping lane tunnel trolley comprises an arch formwork assembly formed by a top formwork, two middle side formworks, and two bottom side formworks that are rotatably connected in sequence, and a gantry formed by a crossbeam and two columns. The bottom end of the gantry is equipped with a traveling system capable of moving and positioning along the longitudinal and lateral directions of the tunnel's main tunnel. Suspension beams are fixed to the outer sides of the middle sections of the two columns, and diagonal braces are fixedly connected between the outer ends of the suspension beams and the corresponding ends of the crossbeams. A formwork frame is fixed to the lower surface of the top formwork, and a lifting cylinder is connected between the formwork frame and the crossbeam. The lower ends of the two middle side formworks are detachably hinged to the upper ends of the two bottom side formworks via pins. Secondary support legs are detachably connected to the lower surface of the outer ends of the suspension beams. Top rods are detachably connected between the middle side formworks and their corresponding diagonal braces, and between the bottom side formworks and their corresponding secondary support legs.

[0005] Furthermore, the upper ends of the two middle side molds are respectively connected to the two ends of the top mold through a rotating shaft parallel to the pin shaft. The distance between the two ends of the top mold is less than the length of the crossbeam, and the distance between the two ends of the middle side mold is greater than the length of the diagonal brace, so that when the lifting cylinder is in the lowering state and the top rod is removed, the inner surface of the middle side mold can adapt to the end of the crossbeam and the corresponding cantilever beam.

[0006] Furthermore, a first hinge seat is fixed to both the end of the crossbeam and the outer end of the cantilever beam, and a second hinge seat with an adapter shaft fixed to the corresponding first hinge seat is fixed to the inner surface of the middle side mold.

[0007] Furthermore, the walking system includes a set of movable wheels rotatably mounted at the bottom of the column with the column axis as the rotation center line, and the movable wheels are driven by a drive motor.

[0008] Furthermore, lifting cylinders are connected to both ends of the lower surface of the mold frame and the crossbeam, and a main support leg is detachably connected to the middle of the lower surface of the mold frame and the crossbeam.

[0009] Furthermore, the top end of the secondary support leg is detachably connected to the outer end of the cantilever beam via a bolt assembly.

[0010] By adopting the technical solution described above, this utility model has the following beneficial effects: The emergency parking lane tunnel-through trolley disclosed in this utility model can quickly switch from emergency parking lane construction state to tunnel-through state without the need for extensive formwork removal and reinstallation work as in traditional methods. By adopting a new design with adjustable gantry height, detachable bottom formwork structure, and flexible walking system, the cost of manual disassembly and assembly of the trolley per operation is reduced, greatly saving construction costs and time, and improving construction efficiency. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the present invention in its unfolded construction state; Figure 2 yes Figure 1 A schematic diagram of the side view structure; Figure 3 This is a structural diagram of the disassembled and movable state of this utility model.

[0012] In the diagram: 1. Top mold; 2. Middle side mold; 3. Diagonal brace; 4. Bottom side mold; 5. Column; 6. Horizontal beam; 7. Lifting cylinder; 8. Mold frame; 9. Main support leg; 10. Secondary support leg; 11. Walking system; 12. Cantilever beam; 13. Heightening box; 14. Top rod. Detailed Implementation

[0013] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0014] Combined with appendix Figure 1-2The emergency stopping lane tunnel trolley comprises an arch formwork assembly formed by the sequential rotational connection of a top formwork 1, two middle side formworks 2, and two bottom side formworks 4, and a gantry frame formed by a crossbeam 6 and two columns 5. The overall support height of the columns 5 can be changed by installing or removing the extension box 13, as shown in the attached figure. Figure 2 As shown, multiple arch modules and gantry frames are evenly spaced along the longitudinal direction of the tunnel, according to the width of each construction, and are connected to each other by longitudinal supports and diagonal braces. The bottom end of the gantry frame is equipped with a walking system 11 that can move and position along the longitudinal and lateral directions of the tunnel main tunnel. This facilitates the trolley to move laterally to the corresponding main tunnel after retracting from the emergency stopping lane and to the next emergency stopping lane. Specifically, the walking system 11 includes a set of movable wheels that are rotatably installed at the bottom end of the column 5 with the axis of the column 5 as the rotation center line. The movable wheels are driven by a drive motor, that is, the direction of movement of the trolley is adjusted by rotating and adjusting the orientation of the movable wheels. Both columns 5 have cantilever beams 12 fixed to their outer sides at the middle. Diagonal braces 3 are fixedly connected between the outer ends of the cantilever beams 12 and the corresponding ends of the crossbeams 6. To increase connection strength, various reinforcing rods can also be connected between the cantilever beams 12, diagonal braces 3, and the corresponding columns 5, thus ensuring stable support for the arch module, especially the middle and side molds 2. A mold frame 8 is fixed to the lower surface of the top mold 1. A lifting cylinder 7 is connected between the mold frame 8 and the crossbeams 6. The lifting cylinder 7 drives the mold frame 8 and the top mold 1 to adjust their height. The mold frame 8 specifically includes a horizontal chord, the two ends of which are fixedly connected to the two ends of the lower arc surface of the top mold 1. The lower surfaces of the two ends of the chord are respectively connected to the upper ends of two lifting cylinders 7. The lower ends of the two lifting cylinders 7 are fixed to the crossbeam 6. The two lifting cylinders 7 can ensure smooth lifting. The middle part of the lower surface of the mold frame 8 is detachably connected to the crossbeam 6. The main support leg 9 can raise and support the mold frame 8 when the lifting cylinder 7 is raised. Before the lifting cylinder 7 is lowered, it can be shortened for support. The lower ends of the two middle side molds 2 are detachably hinged to the upper ends of the two bottom side molds 4 via pins. The middle side molds 2 and the corresponding bottom side molds 4 are rotatably connected by pins inserted in the hinge holes. The bottom side molds 4 can be removed by pulling out the pins, which is very convenient. The lower surface of the outer end of the cantilever beam 12 is detachably connected to the secondary support leg 10, which is used to support the cantilever beam 12. Specifically, the top end of the secondary support leg 10 is detachably connected to the outer end of the cantilever beam 12 via bolt assembly, ensuring convenient disassembly and assembly. The middle side molds 2 and the corresponding diagonal braces 3, as well as the bottom side molds 4 and the corresponding secondary support legs 10, are detachably connected to the top rods 14. With a considerable number of top rods 14, the arch mold assembly can be mounted on the gantry. As needed, the upper ends of the two middle side molds 2 are rotatably connected to the two ends of the top mold 1 via a rotating shaft parallel to the pin. The distance between the two ends of the middle mold 2 is less than the length of the crossbeam 6, and the distance between the two ends of the middle mold 2 is greater than the length of the diagonal brace 3. This is so that when the lifting cylinder 7 is in the lowered state and the top rod 14 is removed, the inner surface of the middle mold 2 can adapt to the end of the crossbeam 6 and the corresponding cantilever beam 12, ensuring that the middle mold 2 can be well supported when the trolley is in the retracted state. In addition, the ends of the crossbeam 6 and the outer ends of the cantilever beam 12 are both fixed with first hinge seats, and the inner surface of the middle mold 2 is fixed with a second hinge seat that is adapted to the insertion shaft and fixed to the corresponding first hinge seat, to prevent the middle mold 2 from shaking during movement. When the two ends of the top rod 14 are also hinged by the through-hole hinge shaft, the first hinge seat and the second hinge seat can be set for connecting the top rod 14 at the corresponding position. When the top rod 14 is removed, it can be used to fix the middle mold 2, so that it does not need to be specially set separately.

[0015] Implementing the emergency stopping lane tunnel trolley described in this utility model, during the construction of the emergency stopping lane, such as... Figure 1 As shown, the top mold 1, the two middle side molds 2, and the two bottom side molds 4 are all supported and arched by the push rod 14, and the lifting cylinder 7 is also in the raised state. When it is necessary to move the trolley, as... Figure 3 As shown, it is only necessary to remove the auxiliary support leg 10, the two bottom side molds 4 and all the top rods 14, and then control the lifting cylinder 7 to lower it. Then control the walking system 11 to first move laterally along the tunnel to the corresponding main tunnel, and then move longitudinally to the next emergency stopping lane, and then reinstall the support.

[0016] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. An emergency stopping lane tunnel trolley, comprising an arch formwork assembly formed by a top formwork, two middle side forms, and two bottom side forms rotated and connected in sequence, and a portal frame formed by a crossbeam and two columns, characterized in that: The bottom end of the gantry is equipped with a walking system capable of moving and positioning along the longitudinal and lateral directions of the tunnel main shaft; cantilever beams are fixed to the outer sides of the middle columns of the two columns, and diagonal braces are fixedly connected between the outer ends of the cantilever beams and the corresponding ends of the crossbeams; a formwork frame is fixed to the lower surface of the top formwork, and a lifting cylinder is connected between the formwork frame and the crossbeam; the lower ends of the two middle side forms are detachably hinged to the upper ends of the two bottom side forms via pins; secondary support legs are detachably connected to the lower surface of the outer ends of the cantilever beams; top rods are detachably connected between the middle side forms and the corresponding diagonal braces, and between the bottom side forms and the corresponding secondary support legs.

2. The emergency stopping lane tunnel trolley according to claim 1, characterized in that: The upper ends of the two middle side molds are respectively connected to the two ends of the top mold through a rotating shaft parallel to the pin shaft. The distance between the two ends of the top mold is less than the length of the crossbeam, and the distance between the two ends of the middle side mold is greater than the length of the diagonal brace, so that when the lifting cylinder is in the lowering state and the top rod is removed, the inner surface of the middle side mold can adapt to the end of the crossbeam and the corresponding cantilever beam.

3. The emergency stopping lane tunnel-crossing trolley according to claim 2, characterized in that: The end of the crossbeam and the outer end of the cantilever beam are both fixed with a first hinge seat, and the inner surface of the middle side mold is fixed with a second hinge seat that is adapted to insert a shaft and fixed to the corresponding first hinge seat.

4. The emergency stopping lane tunnel trolley according to claim 1, characterized in that: The walking system includes a set of movable wheels rotatably mounted at the bottom of the column with the column axis as the rotation center line, and the movable wheels are driven by a drive motor.

5. The emergency stopping lane tunnel trolley according to claim 1, characterized in that: Lifting cylinders are connected to both ends of the lower surface of the mold frame and the crossbeam, and a main support leg is detachably connected to the middle of the lower surface of the mold frame and the crossbeam.

6. The emergency stopping lane tunnel trolley according to claim 1, characterized in that: The top of the secondary support leg is detachably connected to the outer end of the cantilever beam via a bolt assembly.

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