Tunnel inner ring track hoisting tool

Abstract

This utility model relates to the field of tunnel construction technology, and in particular discloses a hoisting fixture for a ring track inside a tunnel, including an arc-shaped track, a traveling hoisting mechanism, and a lifting frame. The arc-shaped track includes at least two monorails spaced apart along the tunnel's extension direction; the traveling hoisting mechanism includes at least four traveling hoisting components, with two traveling hoisting components slidably mounted on each monorail, and the four traveling hoisting components connected to the four corners of the lifting frame respectively. The traveling hoisting components can travel along the monorails and pull the lifting frame for lifting and lowering; the lifting frame is used to support the ring track. This utility model can effectively reduce the complexity of the operation, reduce the labor intensity and safety risks of workers, and improve the operation speed when installing large ring tracks inside tunnels.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a hoisting tool for a ring track inside a tunnel. Background Technology

[0002] With the widespread use of large-scale shotcrete equipment in tunnels, more and more equipment needs to be installed within the limited space of tunnels, among which the installation of large ring track components is particularly difficult. Large ring track components are characterized by their large overall size, very small distance from the tunnel wall, and high requirements for installation and positioning accuracy. Currently, there is no systematic method for installing ring tracks in tunnels. Existing methods involve setting multiple fixed lifting points along the circumference of the tunnel wall and manually lifting and adjusting them simultaneously from multiple points. This existing method suffers from problems such as a large number of workers, high labor intensity, and high safety risks.

[0003] Patent CN119435039A discloses a mobile ring reinforcement loading mechanism and its usage method. The mobile ring reinforcement loading mechanism consists of a ring frame, a ring track trolley, a longitudinal trolley, a support cylinder, and an overload protection component. The ring reinforcement is moved and lifted via the ring track trolley, longitudinal trolley, and support cylinder on the ring frame. However, it lacks precise positioning and automatic positioning measures for the position of the ring reinforcement after movement and its posture after lifting; it lacks anti-collision measures for materials during handling; and it does not provide corresponding lifting fixtures to address the problem of insufficient lifting height in tunnels.

[0004] Patent CN108868824B discloses a trolley and method for laying circumferential reinforcing bars in tunnel secondary lining. The trolley consists of a movable trolley body, a circular track, a pulling trolley, a reinforcing bar dragging roller, and flexible traction components. Its main purpose is material transportation and bending and laying in conjunction with other functions of the trolley. However, it lacks precise positioning and automatic positioning measures; it has no anti-collision measures for materials during transportation; and it does not have lifting equipment to solve the problem of insufficient lifting height in tunnels.

[0005] Patent CN204588526U discloses a gantry crane used in tunnel construction, consisting of a crossbeam, an electric hoist, steel plates, and a crossbeam support. Materials are lifted by sliding the electric hoist along the crossbeam. However, a single electric hoist cannot adjust the lifting posture of parts, and the straight crossbeam limits the overall lifting height due to the tunnel's shape.

[0006] Therefore, it is necessary to provide a new hoisting tool for the inner ring track of the tunnel to solve the above-mentioned technical problems. Utility Model Content

[0007] The main purpose of this utility model is to provide a hoisting tool for ring rails inside tunnels, which aims to solve the problems of difficulty in hoisting and installing, cumbersome operation, low efficiency, and high safety risks when installing large ring rails inside tunnels using existing tools.

[0008] To achieve the above objectives, the present invention proposes a tunnel inner ring track hoisting fixture, comprising an arc-shaped track, a traveling hoisting mechanism, and a lifting frame. The arc-shaped track includes at least two monorails spaced apart along the tunnel extension direction. The traveling hoisting mechanism includes at least four traveling hoisting components, with two of the traveling hoisting components slidably mounted on each monorail. The four traveling hoisting components are respectively connected to the four corners of the lifting frame. The traveling hoisting components can travel along the monorails and can pull the lifting frame for lifting and lowering. The lifting frame is used to support the ring track.

[0009] Optionally, the traveling lifting unit includes a traveling trolley, a drive assembly, and a lifting assembly. The traveling trolley is slidably mounted on the monorail. The drive assembly is mounted on the traveling trolley and can drive the traveling trolley to move along the monorail. The lifting assembly is mounted on the traveling trolley, and the output end of the lifting assembly is connected to the lifting frame. The lifting assembly can drive the lifting frame to rise or fall.

[0010] Optionally, the monorail includes a slide rail body and a rack. The slide rail body is disposed on the inner wall of the tunnel. Two opposing grooves are formed on the slide rail body. The rack is disposed on the side of the slide rail body away from the inner wall of the tunnel, and the rack matches the contour of the inner wall of the tunnel. An installation space is formed on the traveling trolley. At least four pulleys are provided in the installation space. The four pulleys are arranged opposite each other in pairs, and the pulleys are rolled within the grooves.

[0011] Optionally, the drive assembly includes a gear and a travel drive component. The gear is disposed within the mounting space and on the side of the pulley away from the slide rail body. A rack is disposed between the gear and the pulley and meshes with the gear. The travel drive component is disposed on the traveling trolley, and the output shaft of the travel drive component is connected to the gear. The travel drive component can drive the gear to rotate so as to move the traveling trolley along the monorail.

[0012] Optionally, the lifting assembly includes a roller, a lifting drive, and a lifting rope. The roller is rotatably disposed on the side of the traveling trolley away from the monorail. The lifting drive is disposed on the traveling trolley, and the output shaft of the lifting drive is connected to the roller. The lifting drive can drive the roller to rotate through a transmission component connected to the output shaft. The lifting rope is wound around the roller, and one end of the lifting rope is connected to the lifting frame.

[0013] Optionally, the tunnel inner ring rail hoisting fixture further includes sensors, encoders, and a control module. The monorail is equipped with multiple sensors arranged circumferentially along the inner wall of the tunnel. The sensors are used to detect whether the traveling trolley is in position. The encoder is set on the output shaft of the traveling drive component or the rotating shaft of the roller. The encoder is used to detect the number of rotations of the roller. The control module is electrically connected to the traveling hoisting unit, the sensors, and the encoder. The control module can control the traveling hoisting unit to perform hoisting operations based on the feedback data from the sensors and the encoder.

[0014] Optionally, the lifting frame includes an arc-shaped support and an arc-shaped support plate, the bottom of which is connected to a hoisting rope; the arc-shaped support plate is disposed on the arc-shaped support, and the outline of the arc-shaped support plate matches the outline of the ring rail.

[0015] Optionally, the tunnel inner ring rail hoisting fixture also includes anti-collision pads installed on the inner wall of the tunnel, and the anti-collision pads are provided at both ends of the monorail.

[0016] Optionally, the tunnel inner ring track hoisting fixture also includes a handheld remote controller, which is electrically connected to the traveling drive component and the hoisting drive component respectively.

[0017] In this invention, four traveling lifting units work together to lift the lifting frame. The position and orientation of the lifting frame can be changed by individually adjusting each traveling lifting unit to adapt to the installation requirements of different locations on the ring track. This invention effectively reduces the complexity of the work, the labor intensity and safety risks for workers, and improves the work speed when installing large ring tracks in tunnels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the tunnel inner ring rail hoisting tool in an embodiment of this utility model; Figure 2 for Figure 1 Side view; Figure 3 This is a schematic diagram of the structure of the walking and lifting unit in an embodiment of this utility model; Figure 4 This is a structural schematic diagram of the single walking and lifting component from another perspective in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the monorail, sensor, and handheld remote control in an embodiment of this utility model.

[0020] Explanation of icon numbers: 1. Arc-shaped track; 1.1. Monorail; 1.1.1. Main body of slide rail; 1.1.2. Rack and pinion; 2. Traveling and lifting unit; 2.1. Traveling trolley; 2.1.1. Installation space; 2.1.2. Pulley; 2.2. Drive assembly; 2.2.1. Gear; 2.2.2. Traveling drive component; 2.3. Lifting assembly; 2.3.1. Roller; 2.3.2. Lifting rope; 2.3.3. Lifting drive component; 2.3.4. Transmission component; 3. Lifting frame; 3.1. Arc-shaped bracket; 3.2. Arc-shaped support plate; 4. Anti-collision pad; 5. Sensor; 6. Tunnel inner wall; 7. Ring track; 8. Handheld remote control.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a hoisting tool for ring rails inside tunnels, aiming to solve the problems of difficulty in hoisting and installing large ring rails inside tunnels, cumbersome operation, low efficiency, and high safety risks when using existing tools.

[0028] like Figure 1 and Figure 2 As shown, the hoisting fixture for the ring track 7 inside the tunnel includes a monorail 1.1, a traveling lifting mechanism, and a lifting frame 3. The monorail 1.1 includes at least two monorails 1.1 spaced apart along the tunnel's extension direction. The traveling lifting mechanism includes at least four traveling lifting components 2, with two traveling lifting components 2 slidably mounted on each monorail 1.1. The four traveling lifting components 2 are connected to the four corners of the lifting frame 3, respectively. The traveling lifting components 2 can travel along the monorail 1.1 and can pull the lifting frame 3 for lifting and lowering. The lifting frame 3 supports the ring track 7. In this embodiment, the four traveling lifting components 2 cooperate to lift the lifting frame 3, and the position and orientation of the lifting frame 3 can be changed by individually adjusting each traveling lifting component 2 to adapt to the installation requirements of different positions of the ring track 7. This embodiment can effectively reduce the complexity of the operation, reduce the labor intensity and safety risks of workers, and improve the operation speed when installing large ring tracks 7 inside the tunnel.

[0029] See also Figure 3 and Figure 4The traveling lifting component 2 includes a traveling trolley 2.1, a drive assembly 2.2, and a lifting assembly 2.3. The traveling trolley 2.1 is slidably mounted on a monorail 1.1; the drive assembly 2.2 is mounted on the traveling trolley 2.1 and can drive the traveling trolley 2.1 to move along the monorail 1.1; the lifting assembly 2.3 is mounted on the traveling trolley 2.1, and its output end is connected to the lifting frame 3, enabling the lifting frame 3 to rise or fall. In one example of this embodiment, the lifting assembly 2.3 drives the lifting frame 3 to rise or fall via the lifting and traveling drive assembly 2.2.2. In another example of this embodiment, the lifting assembly 2.3 can transmit power with the drive assembly 2.2 to achieve the rising or falling of the lifting frame 3. The traveling trolley 2.1 moves along the monorail 1.1 under the action of the drive component 2.2. At the same time, the lifting component 2.3 adjusts the height of the lifting frame 3. The posture of the lifting frame 3 is adjusted by the cooperation of each traveling lifting component 2, so as to adapt to the installation operation of the ring rail 7.

[0030] See also Figure 5 The monorail 1.1 includes a slide rail body 1.1.1 and a rack 1.1.2. The slide rail body 1.1.1 is mounted on the inner wall 6 of the tunnel. Two opposing sliding grooves are formed on the slide rail body 1.1.1. The rack 1.1.2 is located on the side of the slide rail body 1.1.1 away from the inner wall 6 of the tunnel, and the rack 1.1.2 matches the contour of the inner wall 6 of the tunnel. An installation space 2.1.1 is formed on the traveling trolley 2.1. At least four pulleys 2.1.2 are provided in the installation space 2.1.1. The four pulleys 2.1.2 are arranged opposite each other in pairs, and the pulleys 2.1.2 are rolled in the sliding grooves. In this embodiment, the slide rail body 1.1.1 is H-shaped, and corresponding grooves are formed at the openings on both sides of the H-shaped slide rail body 1.1.1. The H-shaped slide rail body 1.1.1 is fixed to the tunnel inner wall 6 to provide load-bearing capacity. The traveling trolley 2.1 is in rolling contact with the grooves through two sets of oppositely arranged pulleys 2.1.2. The part of the slide rail body 1.1.1 with racks 1.1.2 is confined within the installation space 2.1.1 by the pulleys 2.1.2, so that the traveling trolley 2.1 moves along the monorail 1.1 while being confined to the guide rail, preventing the traveling trolley 2.1 from leaving the monorail 1.1 and ensuring the stability and safety of the operation. In this embodiment, the monorail 1.1 can use the existing H-shaped arch frame in the tunnel to reduce costs. The monorail 1.1 matches the curvature of the tunnel, and the lifting frame 3 is installed below the ring rail 7 section to maximize the lifting height of the ring rail 7 section to meet the hoisting requirements of the ring rail 7. Moreover, the monorail 1.1 is not limited to H-shaped rails and can be replaced with other types of rails such as I-shaped rails.

[0031] Specifically, the drive assembly 2.2 includes a gear 2.2.1 and a travel drive component 2.2.2. The gear 2.2.1 is disposed within the mounting space 2.1.1 and is located on the side of the pulley 2.1.2 away from the slide rail body 1.1.1. A rack 1.1.2 is disposed between the gear 2.2.1 and the pulley 2.1.2 and meshes with the gear 2.2.1. The travel drive component 2.2.2 is disposed on the traveling trolley 2.1. The output shaft of the travel drive component 2.2.2 is connected to the gear 2.2.1. The travel drive component 2.2.2 can drive the gear 2.2.1 to rotate so as to move the traveling trolley 2.1 along the monorail 1.1. The traveling trolley 2.1 moves along the guide rail under the action of the traveling drive component 2.2.2 through the cooperation of gear 2.2.1 and rack 1.1.2, and is limited by pulley 2.1.2 to fix the traveling trolley 2.1 on the guide rail and effectively guide it. This ensures stability during movement while meeting the lifting operation requirements at different locations. In this embodiment, the traveling drive component 2.2.2 is a speed reducer, and gear 2.2.1 is mounted on the shaft end of the speed reducer. The rotational power provided by the speed reducer cooperates with rack 1.1.2 on the guide rail to convert into the moving power of the traveling lifting mechanism. Simultaneously, the locking force provided by gear 2.2.1 through the speed reducer cooperates with rack 1.1.2 on the guide rail to convert into the locking force of the traveling lifting mechanism, thereby achieving the limiting and fixing of the traveling trolley 2.1 on the guide rail. In this embodiment, gear 2.2.1 can also be replaced by other mechanical transmissions, such as transmission components, wire ropes, etc.

[0032] Further, the lifting assembly 2.3 includes a roller 2.3.1, a lifting drive component 2.3.3, and a lifting rope 2.3.2. The roller 2.3.1 is rotatably mounted on the side of the traveling trolley 2.1 away from the monorail 1.1. The lifting drive component 2.3.3 is mounted on the traveling trolley 2.1, and its output shaft is connected to the roller 2.3.1. The lifting drive component 2.3.3 can drive the roller 2.3.1 to rotate via a transmission component 2.3.4 connected to the output shaft. The lifting rope 2.3.2 is wound around the roller 2.3.1, and one end of the rope 2.3.2 is connected to the lifting frame 3. The lifting drive component 2.3.3 drives the roller 2.3.1 to rotate, thereby enabling the lifting rope 2.3.2 to be wound and unwound, thus adjusting the height and posture of the lifting frame 3 to accommodate the installation operation of the ring rail 7 on the lifting frame 3. In this embodiment, the lifting drive component 2.3.3 is a motor. Transmission component 2.3.4 can also be replaced with other mechanical transmissions, such as gears, wire ropes, belts, etc. In this embodiment, there are two lifting drive components, which are symmetrically arranged on both sides of the drum. Each lifting drive component is transmitted to the drum through a transmission component. One lifting drive component drives the drum to rotate clockwise to lower the lifting rope, and the other lifting drive component drives the drum to rotate counterclockwise to retract the lifting rope. Thus, the drum's operation of raising and lowering the lifting rope is achieved through the cooperation of the two lifting drive components.

[0033] Furthermore, the tunnel inner ring track hoisting fixture also includes sensors 5, encoders, and a control module. Multiple sensors 5 are arranged circumferentially along the inner wall 6 of the tunnel on the single track 1.1. These sensors 5 detect whether the traveling trolley 2.1 is in position. The encoder is mounted on the output shaft of the traveling drive component 2.2.2 or the rotating shaft of the roller 2.3.1. The encoder detects the number of rotations of the roller 2.3.1. The control module is electrically connected to the traveling hoisting component 2, the sensors 5, and the encoder. The control module can control the traveling hoisting component 2 to perform hoisting operations based on the feedback data from the sensors 5 and the encoder. The automatic positioning system controls the traveling hoisting mechanism to automatically travel along the arc track 1 to a preset position and controls the extension of the hoisting rope 2.3.2 to a preset length. The sensors 5 are installed at a set position on the arc track 1 and provide a stop or travel signal when they sense that the traveling hoisting mechanism has moved to the set position. When the encoder senses that the hoisting rope 2.3.2 has rotated a specified number of times or a specified length, it feeds back a stop or rotation signal to the control module. In this embodiment, sensor 5 and encoder can be replaced with sensing elements such as lidar and angle sensor 5.

[0034] In this embodiment, the lifting frame 3 includes an arc-shaped support 3.1 and an arc-shaped support plate 3.2. The bottom of the arc-shaped support 3.1 is connected to the hoisting rope 2.3.2. The arc-shaped support plate 3.2 is disposed on the arc-shaped support 3.1, and the outline of the arc-shaped support plate 3.2 matches the outline of the ring rail 7.

[0035] In addition, the hoisting fixture for the ring track inside the tunnel also includes anti-collision pads 4 installed on the inner wall 6 of the tunnel, with anti-collision pads 4 installed at both ends of the monorail 1.1. In this embodiment, the anti-collision pads 4 are made of elastic materials such as rubber. The anti-collision pads 4 can prevent the ring track 7 parts from directly colliding with the tunnel sidewall during hoisting, thus playing a role in buffering and protection.

[0036] The hoisting fixture for the tunnel's ring track also includes a handheld remote controller 8, which is electrically connected to the traveling drive component 2.2.2 and the hoisting drive component 2.3.3. The handheld remote controller 8 is held by the operator and provides wireless signals to control the movement of the traveling hoisting mechanism and the extension and retraction of the hoisting rope 2.3.2, reducing labor intensity, improving work efficiency, and ensuring operational safety.

[0037] In this embodiment, the ring track 7 is divided into three parts: left, right, and top, which need to be installed on the equipment separately. The arc track 1 has multiple circumferentially positioned locations, with one sensor 5 corresponding to each location. The operation steps are as follows: Step 1: The left ring rail 7-section is transported horizontally to the bottom of the ring rail hoisting tool inside the tunnel, and the lifting frame 3 is installed under the left ring rail 7-section.

[0038] Step 2: The traveling lifting mechanism is signaled by the handheld remote controller 8 and automatically moves to the position set by the sensor 5 above the arc track 1 and stops, and automatically extends the lifting rope 2.3.2 to the preset length; connect the lifting rope 2.3.2 to the lifting point of the lifting frame 3.

[0039] Step 3: The traveling lifting mechanism receives a signal from the handheld remote controller 8, automatically shortening the lifting rope 2.3.2 to a preset length to lift the left ring rail segment 7, and automatically moving it to the position set by the sensor 5 on the left side of the curved track 1 to stop. It also automatically extends or shortens the lifting rope 2.3.2 to a preset length to ensure the left ring rail segment 7 is vertically lifted. During the sideways movement of the ring rail segment 7, the anti-collision device acts as a buffer and protector, preventing direct collision and damage between the ring rail segment 7 and the tunnel sidewall.

[0040] Step 4: Move the equipment to be installed on the left ring rail 7 block and install it. After installation, the ring rail 7 block will be removed along with the equipment. Install the right ring rail 7 block following the steps above.

[0041] Step 5: Transport the upper ring rail 7 sections horizontally to the bottom of the inner ring rail hoisting fixture in the tunnel, and install the lifting frame 3 under the upper ring rail 7 sections.

[0042] Step 6: The traveling lifting mechanism is signaled by the handheld remote controller 8 and automatically moves to the position set by the sensor 5 above the arc track 1 and stops, and automatically extends the lifting rope 2.3.2 to the preset length; connect the lifting rope 2.3.2 to the lifting point of the lifting frame 3.

[0043] Step 7: The traveling lifting mechanism, signaled by the handheld remote control 8, automatically shortens the lifting ropes 2, 3, and 2 to the preset length, lifting the upper ring rail 7 section to the highest lifting point. Due to installation requirements, the upper ring rail 7 section needs to be lifted as high as possible.

[0044] Step 8: Move the equipment to be installed on the upper ring rail 7 block below the ring rail 7 block for installation. After installation, the ring rail 7 block will be removed along with the equipment.

[0045] The operation method in this embodiment combines the arc-shaped track 1 and the lifting frame 3 to ensure the lifting height and hoisting posture; the control module, combined with the traveling hoisting mechanism, realizes automatic hoisting and positioning; the anti-collision pad 4 ensures that the ring track 7 will not be damaged during the hoisting process; thus, while meeting the hoisting requirements of the ring track 7, it reduces labor intensity, improves operation efficiency, and reduces safety risks.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A hoisting fixture for a ring track inside a tunnel, characterized in that, The system includes an arc track (1), a traveling lifting mechanism, and a lifting frame (3). The arc track (1) includes at least two monorails (1.1) spaced apart along the tunnel extension direction. The traveling lifting mechanism includes at least four traveling lifting units (2). Two traveling lifting units (2) are slidably arranged on one of the monorails (1.1), and the four traveling lifting units (2) are respectively connected to the four corners of the lifting frame (3). The traveling lifting units (2) can travel along the monorail (1.1) and can pull the lifting frame (3) to lift it up and down. The lifting frame (3) is used to support the ring track (7).

2. The tunnel inner ring rail hoisting fixture as described in claim 1, characterized in that, The traveling lifting unit (2) includes a traveling trolley (2.1), a drive assembly (2.2), and a lifting assembly (2.3). The traveling trolley (2.1) is slidably mounted on the monorail (1.1). The drive assembly (2.2) is mounted on the traveling trolley (2.1) and can drive the traveling trolley (2.1) to move along the monorail (1.1). The lifting assembly (2.3) is mounted on the traveling trolley (2.1), and the output end of the lifting assembly (2.3) is connected to the lifting frame (3). The lifting assembly (2.3) can drive the lifting frame (3) to rise or fall.

3. The tunnel inner ring rail hoisting fixture as described in claim 2, characterized in that, The monorail (1.1) includes a slide rail body (1.1.1) and a rack (1.1.2). The slide rail body (1.1.1) is disposed on the inner wall (6) of the tunnel. Two opposing grooves are formed on the slide rail body (1.1.1). The rack (1.1.2) is disposed on the side of the slide rail body (1.1.1) away from the inner wall (6) of the tunnel, and the rack (1.1.2) matches the contour of the inner wall (6). An installation space (2.1.1) is formed on the traveling trolley (2.1). At least four pulleys (2.1.2) are provided in the installation space (2.1.1). The four pulleys (2.1.2) are arranged opposite each other in pairs, and the pulleys (2.1.2) are rolled in the grooves.

4. The tunnel inner ring rail hoisting fixture as described in claim 3, characterized in that, The drive assembly (2.2) includes a gear (2.2.1) and a travel drive component (2.2.2). The gear (2.2.1) is disposed within the mounting space (2.1.1) and is located on the side of the pulley (2.1.2) away from the slide rail body (1.1.1). The rack (1.1.2) is disposed between the gear (2.2.1) and the pulley (2.1.2) and meshes with the gear (2.2.1). The travel drive component (2.2.2) is disposed on the traveling trolley (2.1), and the output shaft of the travel drive component (2.2.2) is connected to the gear (2.2.1). The travel drive component (2.2.2) can drive the gear (2.2.1) to rotate so as to move the traveling trolley (2.1) along the monorail (1.1).

5. The tunnel inner ring rail hoisting fixture as described in claim 4, characterized in that, The lifting assembly (2.3) includes a roller (2.3.1), a lifting drive (2.3.3), and a lifting rope (2.3.2). The roller (2.3.1) is rotatably mounted on the side of the traveling trolley (2.1) away from the monorail (1.1). The lifting drive (2.3.3) is mounted on the traveling trolley (2.1), and the output shaft of the lifting drive (2.3.3) is connected to the roller (2.3.1). The lifting drive (2.3.3) can drive the roller (2.3.1) to rotate through a transmission component (2.3.4) connected to the output shaft. The lifting rope (2.3.2) is wound around the roller (2.3.1), and one end of the lifting rope (2.3.2) is connected to the lifting frame (3).

6. The tunnel inner ring rail hoisting fixture as described in claim 5, characterized in that, The tunnel inner ring rail hoisting fixture also includes sensors (5), encoders and control modules. The single rail (1.1) is equipped with multiple sensors (5) arranged circumferentially along the inner wall (6) of the tunnel. The sensors (5) are used to detect whether the traveling trolley (2.1) is in position. The encoder is set on the output shaft of the traveling drive (2.2.2) or the rotating shaft of the roller (2.3.1). The encoder is used to detect the number of rotations of the roller (2.3.1). The control module is electrically connected to the traveling hoisting unit (2), the sensors (5) and the encoder respectively. The control module can control the traveling hoisting unit (2) to perform hoisting operations according to the feedback data of the sensors (5) and the encoder.

7. The tunnel inner ring rail hoisting fixture as described in claim 6, characterized in that, The lifting frame (3) includes an arc-shaped support (3.1) and an arc-shaped support plate (3.2). The bottom of the arc-shaped support (3.1) is connected to the hoisting rope (2.3.2). The arc-shaped support plate (3.2) is disposed on the arc-shaped support (3.1), and the outline of the arc-shaped support plate (3.2) matches the outline of the ring rail (7).

8. The tunnel inner ring rail hoisting fixture as described in any one of claims 1 to 7, characterized in that, The tunnel inner ring rail hoisting tool also includes anti-collision pads (4) installed on the inner wall (6) of the tunnel, and the anti-collision pads (4) are provided at both ends of the monorail (1.1).

9. The tunnel inner ring rail hoisting fixture as described in any one of claims 5 to 7, characterized in that, The tunnel inner ring track hoisting fixture also includes a handheld remote controller (8), which is electrically connected to the walking drive component (2.2.2) and the hoisting drive component (2.3.3) respectively.

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