Vertical transportation device in tunnel

Abstract

The utility model discloses a vertical transportation device in a tunnel. The vertical transportation device comprises a lifting platform, guide rails vertically arranged on the two sides of the lifting platform and a driving assembly used for driving the lifting platform to vertically ascend and descend. The driving assembly comprises hydraulic driving mechanisms arranged on the two sides of the guide rail and used for driving the vertical push rod to move and pulley mechanisms fixed to the top end of the vertical push rod and capable of sliding along the guide rail, and the hydraulic driving mechanisms drive the push rod to vertically ascend and descend and drive the pulley mechanisms to vertically move. The lifting platform is further driven to lift through a rope penetrating through the pulley; the utility model can effectively solve the problems of large working face height difference and difficult material transportation in a subsurface tunnel, adopts hydraulic pressure as driving power and mechanical operation, is simple to operate and high in safety, and can effectively improve the transportation efficiency in the tunnel.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction, and in particular to a vertical transportation device for tunnels. Background Technology

[0002] Shallow-buried tunnels typically employ a temporary invert arch, with the upper pilot tunnel's construction and transportation passage located above it. Given the complex urban underground environment and the prolonged closure of the tunnel face, if the secondary lining section has already been excavated and completed after the initial construction, and the temporary invert arch has been removed, subsequent excavation of the upper pilot tunnel will utilize the completed secondary lining section for material transportation. However, the significant elevation difference between these two locations presents substantial transportation risks.

[0003] Therefore, there is an urgent need to develop a vertical transportation device for tunnels to effectively solve the problems of large elevation differences and difficult material transportation in mined tunnels, and to enable mechanized operation, which is simple to operate and improves the efficiency of transportation within tunnels. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a vertical transportation device in tunnels, which can effectively solve the problems of large height difference between the working face and difficulty in material transportation in mined tunnels.

[0005] The present invention provides a vertical transportation device for tunnels, comprising: a lifting platform, guide rails vertically installed on both sides of the lifting platform, and a drive assembly for driving the lifting platform to move vertically.

[0006] The drive assembly includes a hydraulic drive mechanism disposed on both sides of the guide rail for driving the vertical push rod to move, and a pulley mechanism fixed to the top of the vertical push rod and slidable along the guide rail.

[0007] Furthermore, a frame for fixing and supporting the guide rail is provided on the outside of the guide rail. The frame also includes a frame base and a crossbeam. The frame base is installed below the tunnel construction surface, and a rope fixing seat is provided on the crossbeam.

[0008] Furthermore, the hydraulic drive mechanism drives the push rod to perform vertical lifting and lowering motion, and drives the pulley mechanism to perform vertical lifting and lowering motion.

[0009] Furthermore, the pulley mechanism includes multiple longitudinally arranged pulleys and a safety rope pulley, and the pulley mechanism can slide along the guide rail under the drive of the hydraulic drive mechanism.

[0010] Furthermore, the lifting platform is raised and lowered by ropes of equal length on both sides, with at least two pairs of corresponding ropes.

[0011] Furthermore, the ropes on both sides of the lifting platform pass through pulleys located on both sides of the lifting platform pulley mechanism, and after passing through the pulleys, the ropes are fixed to the rope fixing seats on the crossbeams on both sides of the frame.

[0012] Furthermore, the lifting platform is equipped with safety ropes of the same length and at least two pairs corresponding to each other on both sides.

[0013] Furthermore, the safety rope passes through the safety rope pulleys of the pulley mechanism located on both sides of the lifting platform, and after passing through the safety rope pulleys, the safety rope is fixed to the rope fixing seat on the crossbeam on both sides of the frame.

[0014] The beneficial effects of this utility model are as follows: The vertical transportation device in the tunnel can effectively solve the problems of large height difference between the working face and the difficulty of material transportation in the underground tunnel. It adopts hydraulic power as the driving force and adopts mechanized operation, which is simple to operate, safe, and can effectively improve the transportation efficiency in the tunnel. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a side view of the present invention. Detailed Implementation

[0018] Figure 1 This is a front structural diagram of the present invention. Figure 2 The following is a side view of the present invention: A vertical transportation device in a tunnel according to this embodiment includes: a lifting platform 8, guide rails 2 vertically installed on both sides of the lifting platform 8, and a drive assembly for driving the lifting platform 8 to move vertically.

[0019] The drive assembly includes a hydraulic drive mechanism 6 disposed on both sides of the guide rail 8 for driving the vertical push rod 5 to move, and a pulley mechanism 3 fixed to the top of the vertical push rod 5 and slidable along the guide rail 2.

[0020] In this embodiment, a frame 1 for fixing and supporting the guide rail 2 is also provided on the outside of the guide rail 2. The frame 1 also includes a frame base and a crossbeam. The frame base is installed below the tunnel construction surface. The crossbeam is also provided with a rope fixing seat 4. As shown in the figure, the frame 1 is set on the outside of the guide rail 2 and is fixedly supported to the tunnel sidewall by a bracket. The guide rail 2 is also fixedly supported on the frame 1 by a bracket. The frame 1 also includes a frame base and a crossbeam. The frame base is installed below the tunnel construction surface, which allows the lifting platform 8 to be lowered to a position flush with the tunnel surface, which is convenient for material transportation. The crossbeam is used to prevent the frame from deforming under stress and is also equipped with a rope fixing seat 4 for fixing the rope 12 and the safety rope 7.

[0021] In this embodiment, the hydraulic drive mechanism 6 drives the push rod 5 to perform vertical lifting and lowering motion, and drives the pulley mechanism 3 to perform vertical lifting and lowering motion. As shown in the figure, the push rod 5, which can perform vertical lifting and lowering motion, is located on the base of the guide rails 2 on both sides. The push rod 5 is driven by the hydraulic drive mechanism 6. The pulley mechanism 3 is slidably installed on the guide rails 2 on both sides and fixed to the top of the push rod 5. Under the drive of the hydraulic drive mechanism 6, it can be driven by the push rod 5 to slide up and down on the guide rails 2.

[0022] In this embodiment, the pulley mechanism 3 includes a plurality of longitudinally arranged pulleys 9 and safety rope pulleys 10. The pulley mechanism 3 can slide along the guide rail 2 under the drive of the hydraulic drive mechanism 6. As shown in the figure, the pulley mechanism 3 includes a plurality of longitudinally fixed pulleys 9 and safety rope pulleys 10, the number of which corresponds to the number of ropes 12 and safety ropes 7 on one side of the lifting platform 8.

[0023] In this embodiment, the lifting platform 8 is raised and lowered by at least two pairs of ropes 12 of the same length on both sides. As shown in the figure, the ropes 12 are of the same length and are arranged on both sides of the lifting platform 8, which can smoothly lift the lifting platform 8. The length of the ropes 12 can be adjusted according to the required lifting height in the tunnel.

[0024] In this embodiment, the ropes 12 on both sides of the lifting platform 8 pass through the pulleys 9 of the pulley mechanisms 3 located on both sides of the lifting platform. After passing through the pulleys 9, the ropes 12 are fixed to the rope fixing seats 4 on the crossbeams on both sides of the frame. As shown in the figure, the ropes 12 pass through the pulleys 9 of the pulley mechanism 12, and both ends of the ropes 12 are fixed to the rope fixing seats 4 on the lifting platform 8 and the frame crossbeams, respectively. When the pulley mechanism 3 rises along the guide rail 2 under the action of the push rod 5 driven by the hydraulic drive mechanism 6, since one end of the rope 12 is fixed to the rope fixing seat 4, The pulley mechanism 3 causes the rope 12 to slide towards the rope fixing seat 4 under the action of the pulley 9, increasing the length of the rope 12 at the end of the rope fixing seat 4 while decreasing the length of the connection section between the rope 12 and the lifting platform 8, thus raising the lifting platform 8. Conversely, when the pulley mechanism 3 descends along the guide rail 2 under the action of the push rod 5 driven by the hydraulic drive mechanism 6, the rope 12 slides towards the lifting platform 8 under the action of the pulley 9, decreasing the length of the rope 12 at the end of the rope fixing seat 4 while increasing the length of the connection section between the rope 12 and the lifting platform 8, thus lowering the lifting platform 8.

[0025] In this embodiment, the lifting platform 8 is also provided with at least two pairs of safety ropes 7 of the same length on both sides; the safety ropes 7 are used to prevent the lifting platform 8 from being pulled when the rope 12 fails, and the length of the safety ropes 7 is slightly longer than that of the rope 12 to ensure that it will not fail due to force during normal use.

[0026] In this embodiment, the safety rope 7 passes through the safety rope pulleys 10 of the pulley mechanism 3 on both sides of the lifting platform. After passing through the safety rope pulleys 10, the safety rope 7 is fixed to the rope fixing seat 4 on the crossbeams on both sides of the frame. As shown in the figure, the two ends of the safety rope 7 are fixed to the lifting platform 8 and the rope fixing seat 4, respectively, just like the rope 12. The safety rope 7 passes through the safety rope pulleys 10 of the pulley mechanism 3.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vertical transportation device for use in tunnels, characterized in that: include: The lifting platform, the guide rails vertically installed on both sides of the lifting platform, and the drive assembly for vertically lifting the lifting platform; The outer side of the guide rail is also provided with a frame for fixing and supporting the guide rail. The frame also includes a frame base and a crossbeam. The frame base is installed below the tunnel construction surface, and the crossbeam is also provided with a rope fixing seat. The drive assembly includes a hydraulic drive mechanism disposed on both sides of the guide rail for driving the vertical push rod to move, and a pulley mechanism fixed to the top of the vertical push rod and slidable along the guide rail; the hydraulic drive mechanism drives the push rod to perform vertical lifting and lowering movement, and drives the pulley mechanism to perform vertical lifting and lowering movement; the pulley mechanism includes multiple longitudinally arranged pulleys and a safety rope pulley, and the pulley mechanism can slide along the guide rail under the drive of the hydraulic drive mechanism.

2. The vertical transportation device in a tunnel according to claim 1, characterized in that: The lifting platform is raised and lowered by at least two pairs of ropes of the same length on both sides.

3. A vertical transportation device in a tunnel according to claim 2, characterized in that: The ropes on both sides of the lifting platform pass through pulleys located on both sides of the lifting platform pulley mechanism, and after passing through the pulleys, the ropes are fixed to the rope fixing seats on the crossbeams on both sides of the frame.

4. A vertical transportation device in a tunnel according to claim 3, characterized in that: The lifting platform is also equipped with safety ropes of the same length and at least two pairs of corresponding ropes on both sides.

5. A vertical transportation device in a tunnel according to claim 4, characterized in that: The safety ropes pass through the safety rope pulleys of the pulley mechanism located on both sides of the lifting platform, and after passing through the safety rope pulleys, the safety ropes are fixed to the rope fixing seats on the crossbeams on both sides of the frame.

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