A multifunctional equipment for operating tunnel structure maintenance

Abstract

This invention discloses a multifunctional equipment for the structural maintenance of operational tunnels, comprising a lower module, an upper module, and a cross-sectional telescopic platform. The upper and lower modules are stacked vertically, with the lower module extending to its left or right distal end. Multiple cross-sectional telescopic platforms are located above the upper modules and connected to them at their bottom. These platforms are arranged sequentially in the vertical direction and can move to the left or right distal end along with the upper modules. Each cross-sectional telescopic platform includes a wide cross-sectional telescopic platform and a narrow cross-sectional telescopic platform stacked vertically, with the wide platform extending to the left distal end and the narrow platform extending to the right distal end. This multifunctional equipment for the structural maintenance of operational tunnels provides adjustable-size, adaptable machinery for tunnel cross-section maintenance.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction machinery technology, specifically relating to a multi-functional equipment for the structural maintenance of operating tunnels. Background Technology

[0002] Current tunnel defect treatment equipment mainly consists of simple platforms mounted on railcars or temporary scaffolding erected on-site. These simple platforms and scaffolding only provide a working platform for the maintenance of operating tunnels. The platforms are of fixed size, have simple structures, and cannot effectively provide mechanized assistance for difficult and labor-intensive tasks such as rock breaking and steel arch installation. During defect treatment, the biggest problem faced by on-site workers is the excessive labor intensity of secondary lining removal and steel arch installation. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional equipment for the structural maintenance of operating tunnels, providing an adjustable-size, adaptable-to-tunnel-section working machine for the maintenance of operating tunnels, while simultaneously automating the maintenance of operating tunnels.

[0004] This invention adopts the following technical solution: a multi-functional equipment for the structural maintenance of operating tunnels, comprising a lower module, an upper module, and a grade-separated telescopic platform, wherein:

[0005] The upper and lower modules are stacked one on top of the other, and the lower module can extend to its left or right end to provide support for the upper module when it slides to the left or right end.

[0006] Multiple interchange-type telescopic platforms are located above the upper module and connected to the upper module at the bottom. The multiple interchange-type telescopic platforms are arranged sequentially in the vertical direction and can move to the left or right end with the upper module.

[0007] Each type of interchange telescopic platform includes: a wide type of interchange telescopic platform and a narrow type of interchange telescopic platform stacked vertically in the vertical direction, and the wide type of interchange telescopic platform can extend to the far left end, while the narrow type of interchange telescopic platform can extend to the far right end.

[0008] Both the wide-type and narrow-type interchange telescopic platforms include: multi-level guide rails and multiple platforms, wherein: the multiple platforms are arranged sequentially along the length of the corresponding multi-level guide rails, and their heights are staggered sequentially; each multi-level guide rail is used to drive the corresponding multiple platforms to move to the left or right end, and to retract to the near end after the work is completed, so that the multiple platforms are stacked sequentially in the vertical direction; the multiple platforms are used as working platforms.

[0009] Furthermore, both the wide-type and narrow-type interchange telescopic platforms have three multi-level guide rails, arranged at intervals in the front-to-back direction. In the wide-type interchange telescopic platform, two of the multi-level guide rails are located at the foremost and rearmost ends; in the narrow-type interchange telescopic platform, two of the multi-level guide rails are located close to the inner side of the foremost and rearmost multi-level guide rails, and the other two multi-level guide rails are located between the two multi-level guide rails in the narrow-type interchange telescopic platform.

[0010] Each multi-level guide rail includes multiple pairs of guide rails nested together coaxially in sequence. In two adjacent pairs of guide rails, the inner pair of guide rails can slide out to the far left or right along the adjacent outer pair of guide rails.

[0011] In a wide-type grade-separated telescopic platform, the two front and rear multi-level guide rails are connected to their corresponding multiple platforms. In a narrow-type grade-separated telescopic platform, the two front and rear multi-level guide rails are connected to their corresponding multiple platforms. The number of platforms is consistent with the number of pairs of nested guide rails in the multi-level guide rails. One platform corresponds to one pair of nested guide rails.

[0012] Multi-stage guide rails are used to drive the platform to move sequentially to the far end.

[0013] Furthermore, a drive mechanism is provided on each of the two middle multi-stage guide rails. The lower end of the cylinder base of the drive mechanism is fixed on the outermost guide rail of the corresponding multi-stage guide rail, and the tail end of the cylinder is installed in the middle of the cylinder base. The front end of the multi-stage cylinder is connected to the leftmost or rightmost platform. The drive mechanism is used to push the leftmost or rightmost platform to drive the guide rail to move to the far end, and in turn drive the adjacent guide rail to drive the platform to move to the far end.

[0014] Furthermore, in the wide-type interchange telescopic platform, the front end of the corresponding multi-stage cylinder is connected to the far left platform via a vertically arranged intermediate support rod; in the narrow-type interchange telescopic platform, the front end of the corresponding multi-stage cylinder is connected to the far right platform via a vertically arranged intermediate support rod; there are multiple intermediate support rods, arranged at intervals along the front and rear of the platform, with the upper end connected to the platform and the lower end connected to the far end of the innermost guide rail of each corresponding multi-stage guide rail.

[0015] Furthermore, each platform has its front and rear edges connected to the corresponding guide rails of the two multi-stage guide rails via vertically installed struts, and the strut heights of each platform are different.

[0016] 6. A multi-functional equipment for structural maintenance of operating tunnels as claimed in claim 3, characterized in that the lower module comprises: a bottom connector, a slide rail one, a welded rail, a slide rail assembly one, and a slide rail assembly two, wherein:

[0017] The bottom connector is a horizontally positioned square frame.

[0018] There are multiple slide rails, each of which spans the left and right sides of the bottom connector. The multiple slide rails are evenly spaced along the front and back direction of the bottom connector, and each slide rail is used to support the upper module.

[0019] The welding track spans the left and right sides of the bottom connector and is located near the front and rear ends, with two at each end and two spaced apart.

[0020] Slide rail assembly one and slide rail assembly two are located on the left and right sides of the bottom connector, and there are two of each. Each includes: slide rail legs, slide rails, rotary motors, and connecting plates, wherein:

[0021] The slide rail support leg is horizontally positioned, and its rear end is connected to a rotary motor. The rotary motor is used to drive the slide rail support leg to rotate with its rear end as a fixed point.

[0022] The slide rail is horizontally installed inside the welding rail, and its left or right outer end is connected to the top of the slide rail support leg.

[0023] At the bottom outer end of the slide, a connecting plate is connected along its entire length, and slide rail wheel sets are provided on the left and right sides of the connecting plate.

[0024] The connecting plate is connected to the drive device, which is a drive cylinder. Its piston rod is connected to the end of the connecting plate located at one end of the slide rail support leg through a plate body, and is used to drive the connecting plate to drive the slide rail to slide to the left or right end.

[0025] Furthermore, in the middle of the bottom connector, and on its left and right sides, hydraulic motor one and hydraulic motor two are respectively provided to provide power for the upper module to move to the left and right.

[0026] Furthermore, the upper module includes an upper connector, which is a horizontally arranged square frame structure and is the same size as the lower connector. Multiple crossbeams are arranged within the frame. On the lower wall of the crossbeam located in the middle of the upper connector, a rack is arranged through it along its left and right direction. The rack meshes with the gears of hydraulic motor one and hydraulic motor two.

[0027] Furthermore, multiple roller assemblies are provided on the left and right longitudinal beams of the upper connector, and on the lower wall of the longitudinal beams. The number of roller assemblies on one side of the longitudinal beam is the same as the number of slide rails. The distance between two adjacent roller assemblies on the same side of the longitudinal beam is the same as the distance between two adjacent slide rails. Each roller assembly is located in the corresponding slide rail.

[0028] Furthermore, steel arch grabs are installed on each interchange-type telescopic platform, and on the platforms located at the far end of both the wide and narrow interchange-type telescopic platforms.

[0029] The beneficial effects of this invention are: 1. Multiple different grade-separated telescopic platforms can be nested together to form a multi-level, multi-directional working platform, which can be used for full-section tunnel maintenance. The extension distance of the platform can also be adaptively adjusted according to the size of the tunnel section. 2. By changing the height of the support rods, different grade-separated working platforms can be combined and installed in the same vertical space. The vertical projection of each platform is within the same area, reducing the installation surface of the railcar. 3. The displacement mechanism provides bidirectional movable rails for the equipment mounted on it, allowing for quick and easy movement to the left or right working point according to site requirements, achieving optimal simplification of the work process. 4. The working platform has lateral movement and lifting extension functions, enabling full-area tunnel lining defect repair work. 5. After the working platform is moved laterally to the middle of the tunnel, a clear space is formed between the upper module of the mechanism and the surrounding legs and rails, allowing simple material carts and personnel transport vehicles to pass through without obstructing the transport of other defect treatment materials and personnel due to prolonged rail occupation. 6. Small equipment and tools required for disease control can be placed directly on the work platform module and robotic arm module and transported with the equipment. During operation, the equipment and tools do not need to be moved up and down, saving time and effort. 7. The frame structure is lightweight, facilitating processing, manufacturing, and transportation, effectively saving costs. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of a multi-functional equipment used for the structural maintenance of operating tunnels;

[0031] Figure 2 This is a schematic diagram of a multi-functional equipment used for structural maintenance of operating tunnels, which is used to enter the tunnel for operation.

[0032] Figure 3 A diagram showing the unfolded state of the narrow, grade-separated telescopic platform at the bottom level;

[0033] Figure 4 Expand the status view for the bottom-level interchange-type telescopic platform;

[0034] Figure 5 Axonometric view of the frame structure of the multi-functional equipment in its contracted state;

[0035] Figure 6 This is a structural diagram of the lower-level module;

[0036] Figure 7 This is a schematic diagram of the upper-level module;

[0037] Figure 8 A structural diagram showing the assembly of the upper and lower modules;

[0038] Figure 9 Axonometric view of the lower module slide rail assembly in its retracted state;

[0039] Figure 10 This is a side view of the steel arch frame gripper.

[0040] The components include: 1. Tunnel; 2. Rail flatcar; 3. Lower module, 3a. Slide rail one, 3b. Slide rail assembly one, 3b1. Slide rail support leg, 3b2. Rotary motor, 3b3. Slide rail wheel set, 3b4. Drive cylinder, 3b5. Connecting plate, 3b6. Slide rail; 3c. Slide rail assembly two; 3d. Hydraulic motor one; 3e. Hydraulic motor two; 3f. Bottom connecting piece, 3f1. Welded rail; 4. Upper module, 4a. Roller assembly one; 4b. Roller assembly two; 4c. Roller assembly three; 4d. Upper connecting piece; 4e. Hydraulic support leg; 4f. Mounting base; 5. Multi-stage telescopic support column one; 6. Middle layer lifting cylinder; 7. Middle layer... 7a. Upper frame; 7b. Middle frame; 7c. Multi-stage telescopic support column 2; 7d. Mounting base; 7d. Upper frame; 8. Upper lifting cylinder; 9. Middle-level interchange telescopic platform; 9b. Double-row scissor lift strut; 10. Upper-level interchange telescopic platform; 12. Steel arch frame grab; 12a. Dovetail groove track; 12b. Slide rail seat; 12c. Double-headed joint; 12d. Grab arm; 12e. Gripper; 13. Bottom-level interchange telescopic platform; 13a. Wide interchange telescopic platform; 13b. Narrow interchange telescopic platform; 13b1. Multi-stage guide rail; 13b2. Middle strut; 13b3. Panel; 13b4. Drive mechanism. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] This invention discloses a multi-functional device for the structural maintenance of operating tunnels, such as... Figure 1 and 2 As shown, it includes a lower module 3, an upper module 4, and a multi-level telescopic platform, wherein:

[0043] The upper module 4 and the lower module 3 are stacked one on top of the other, and the lower module 3 can extend to its left or right end to provide support for the upper module 4 when it slides to the left or right end.

[0044] Multiple interchange-type telescopic platforms are located above the upper module 4 and connected to the upper module 4 at the bottom. The multiple interchange-type telescopic platforms are arranged sequentially in the vertical direction and can move to the left or right of the upper module 4.

[0045] like Figure 3 As shown, each interchange telescopic platform includes: a wide interchange telescopic platform 13a and a narrow interchange telescopic platform 13b stacked vertically in the vertical direction, and the wide interchange telescopic platform 13a can extend to the far left end, and the narrow interchange telescopic platform 13b can extend to the far right end.

[0046] like Figure 4 As shown, both the wide-type interchange telescopic platform 13a and the narrow-type interchange telescopic platform 13b include: multi-level guide rails 13b1 and multiple platforms, wherein: the multiple platforms are arranged sequentially along the length of the corresponding multi-level guide rails 13b1, and their heights are staggered sequentially; each multi-level guide rail 13b1 is used to drive the corresponding multiple platforms to move to the left or right end, and retracts to the near end after the work is completed, so that the multiple platforms are stacked sequentially in the vertical direction; the multiple platforms are used as working platforms.

[0047] like Figure 4 As shown, both the wide-type interchange telescopic platform 13a and the narrow-type interchange telescopic platform 13b contain three multi-level guide rails 13b1, which are arranged at intervals in the front-to-back direction. In the wide-type interchange telescopic platform 13a, two of the multi-level guide rails 13b1 are located at the foremost and rearmost ends. In the narrow-type interchange telescopic platform 13b, two of the multi-level guide rails 13b1 are located close to the inner side of the foremost and rearmost multi-level guide rails 13b1, and the other two multi-level guide rails 13b1 are located between the two multi-level guide rails 13b1 in the narrow-type interchange telescopic platform 13b.

[0048] Each multi-level guide rail 13b1 includes multiple pairs of guide rails nested together coaxially in sequence. In two adjacent pairs of guide rails, the inner pair of guide rails can slide out to the far left or right along the adjacent outer pair of guide rails.

[0049] In the wide-type interchange telescopic platform 13a, the two front and rear multi-level guide rails 13b1 are connected to their corresponding multiple platforms. In the narrow-type interchange telescopic platform 13b, the two front and rear multi-level guide rails 13b1 are connected to their corresponding multiple platforms. The number of platforms is consistent with the number of pairs of guide rails nested in the multi-level guide rails 13b1. One platform corresponds to one pair of nested guide rails.

[0050] The multi-stage guide rail 13b1 is used to drive the platform to move sequentially to the far end.

[0051] A drive mechanism 13b4 is provided on each of the two middle multi-stage guide rails 13b1. The lower end of the cylinder base of the drive mechanism 13b4 is fixed on the outermost guide rail of the corresponding multi-stage guide rail 13b1. The tail end of the cylinder is installed in the middle of the cylinder base. The front end of the multi-stage cylinder is connected to the leftmost or rightmost platform. The drive mechanism 13b4 is used to push the leftmost or rightmost platform to drive the guide rail to move to the far end, and in turn drive the adjacent guide rail to move the platform to the far end.

[0052] In the wide-type multi-level telescopic platform 13a, the front end of its corresponding multi-stage cylinder is connected to the leftmost farthest platform through a vertically arranged intermediate support rod; in the narrow-type multi-level telescopic platform 13b, the front end of its corresponding multi-stage cylinder is connected to the rightmost farthest platform through a vertically arranged intermediate support rod; there are multiple intermediate support rods, which are arranged at intervals along the front and back of the platform, with the upper end connected to the platform and the lower end connected to the far end of the innermost guide rail of each corresponding multi-stage guide rail 13b1.

[0053] Each platform has vertically installed support rods 13b2 connecting to the corresponding guide rails of the two multi-stage guide rails 13b1 at the front and rear, and the height of the support rods 13b2 for each platform is different.

[0054] In one implementation, the aforementioned grade-separated retractable platform is configured with three layers, from bottom to top: a bottom-layer grade-separated retractable platform 13, a middle-layer grade-separated retractable platform 9, and an upper-layer grade-separated retractable platform 10. The bottom-layer grade-separated retractable platform 13 is fixed to the upper-layer module 4, while the middle-layer and upper-layer retractable platforms 9 and 10 are mounted on the upper-middle frame 7. Figure 5 As shown, specifically: the upper-middle frame 7 includes an upper frame 7d and a middle frame 7a set vertically, wherein:

[0055] The upper frame 7d is a horizontally arranged square frame structure with container corner fittings installed at its four corners for hoisting; the upper-level interchange telescopic platform 10 is set on the upper frame 7d;

[0056] The middle frame 7a is a horizontally arranged square frame structure, and the middle-level interchange-type telescopic platform 9 is set on the middle frame 7a. Square steel plates are welded to both ends of the middle frame 7a, and vertical multi-level telescopic support columns 27b are installed on both the left and right ends of each square steel plate. The upper end of each multi-level telescopic support column 27b is fixed to the bottom surface of the upper frame 7d. Multi-level telescopic support columns 5 are installed at the four bottom corners of the middle frame 7a, and the other end of the multi-level telescopic support columns 5 is fixed to the mounting base 4f of the upper module 4 by bolts.

[0057] The multi-stage telescopic support column 27b can rise or fall vertically to support the rise or fall of the upper frame 7d, adjusting the height of the upper interchange telescopic platform 10 in the vertical direction.

[0058] In the aforementioned bottom-level interchange telescopic platform 13, middle-level interchange telescopic platform 9, and upper-level interchange telescopic platform 10, both the wide-type interchange telescopic platform 13a and the narrow-type interchange telescopic platform 13b are three-level platform structures. The multi-level guide rail 13b1 in the bottom-level interchange telescopic platform 13 consists of four pairs of guide rails with gradually decreasing cross-sectional areas nested together, and moves relative to each other through rollers on each pair of guide rails. The outermost guide rail of the multi-level guide rail 13b1 is the first-level guide rail. The bottom surface of the first-level guide rail is fixed to the upper-level connector 4d of the upper-level module 4 by welding or other connection methods. The remaining three-level guide rails can freely extend and retract within the upper-level guide rail under the action of the drive mechanism 13b4. The strut 13b2 comprises three sets of steel members with increasing height, each set consisting of four members, distributed near the four corners of multiple platforms 13b3. The lower ends of all three sets of members are welded to multi-level guide rails 13b1. Specifically, the lower ends of the first set of members are welded to the inner rail surface of the second-level rails of the first and third rows of multi-level guide rails 13b1, and the upper ends of the first set of members are fixed to the lower end of the first-level platform. The lower ends of the second set of members are welded to the inner rail surface of the third-level rails of the first and third rows of guide rails, and the upper ends of the first set of members are fixed to the lower end of the second-level platform. The lower ends of the third set of members are welded to the inner rail surface of the fourth-level rails of the first and third rows of guide rails, and the upper ends of the third set of members are fixed to the lower end of the third-level platform. The lower end of the cylinder base of the drive mechanism 13b4 is fixed to the upper end of the first-stage guide rail of the second row of guide rails. The tail end of the multi-stage cylinder of the drive mechanism 13b4 is installed in the middle of the cylinder base. The front end of the multi-stage cylinder of the drive mechanism 13b4 is connected to the intermediate support rod 13b2 at the front end below the third-stage platform.

[0059] To enhance the stability of the mid-level interchange telescopic platform 9, the lower part of its far-end third-level platform is supported by scissor lift struts 9b.

[0060] like Figure 6 , 8 As shown in Figure 9, the lower module 3 includes: a bottom connector 3f, a slide rail 3a, a welding rail 3f1, a slide rail assembly 3b, and a slide rail assembly 3c, wherein:

[0061] The bottom connector 3f is a horizontally set square frame;

[0062] There are multiple slide rails 3a, each of which spans the left and right sides of the bottom connector 3f. The multiple slide rails 3a are evenly spaced along the front and back direction of the bottom connector 3f, and each slide rail 3a is used to support the upper module 4.

[0063] Welding track 3f1 spans the left and right sides of the bottom connector 3f and is located near the front and rear ends, with two at each end and two spaced apart.

[0064] Slide rail assembly 1 (3b) and slide rail assembly 2 (3c) are located on the left and right sides of the bottom connector (3f), and there are two of each. Each assembly includes: slide rail support leg (3b1), slide rail (3b6), rotary motor (3b2), and connecting plate (3b5), wherein:

[0065] The slide rail support leg 3b1 is horizontally positioned, and its rear end is connected to the rotary motor 3b2. The rotary motor 3b2 is used to drive the slide rail support leg 3b1 to rotate with its rear end as a fixed point.

[0066] The slide rail 3b6 is horizontally set inside the welding rail 3f1, and its left or right outer end is connected to the top of the slide rail support leg 3b1.

[0067] At the bottom outer end of the slide 3b6, a connecting plate 3b5 is connected along its entire length, and slide rail wheel sets 3b3 are provided on the left and right sides of the connecting plate 3b5.

[0068] The connecting plate 3b5 is connected to the driving device, which is a driving cylinder 3b4. Its piston rod is connected to the end of the connecting plate 3b5 located at one end of the slide rail support leg 3b1 through a plate body, and is used to drive the connecting plate 3b5 to drive the slide rail 3b6 to slide to the left or right end.

[0069] In the middle of the bottom connector 3f, and on its left and right sides, there are hydraulic motor 3d and hydraulic motor 3e respectively. Hydraulic motor 3d and hydraulic motor 3e are used to provide power for the upper module 4 to move to the left and right.

[0070] like Figure 7 and 8 As shown, the upper module 4 includes an upper connector 4d, which is a horizontally arranged square frame structure and is the same size as the lower connector 3f. Multiple crossbeams 4d2 are arranged inside the frame. On the lower wall of the crossbeam 4d2 located in the middle of the upper connector 4d, a rack 4d4 is arranged through it along its left and right direction. The rack 4d4 meshes with the gears of the hydraulic motor 3d and the hydraulic motor 3e.

[0071] Multiple roller assemblies 4a are installed on the left and right longitudinal beams of the upper connecting member 4d, and on the lower wall of the longitudinal beam. The number of roller assemblies 4a on one side of the longitudinal beam is the same as the number of slide rails 3a. The distance between two adjacent roller assemblies 4a on the same side of the longitudinal beam 4d1 is the same as the distance between two adjacent slide rails 3a. Each roller assembly 4a is installed in the corresponding slide rail 3a.

[0072] On the lower wall of the crossbeam 4d2 corresponding to the positions of slide rail assembly 3b and slide rail assembly 3c, roller assembly 4b and roller assembly 4c are respectively provided. Roller assembly 4b and roller assembly 4c are used to slide within slide rail assembly 3b and slide rail assembly 3c.

[0073] A horizontal hydraulic outrigger mounting plate is provided at each of the front and rear ends near the upper connector 4d, and the hydraulic outrigger mounting plate spans the left and right longitudinal beams of the upper connector 4d.

[0074] On each hydraulic outrigger mounting plate, and on both the left and right sides there is a vertically downward, retractable hydraulic outrigger 4e;

[0075] Each hydraulic outrigger mounting plate has a mounting base 4f located on its left and right edges.

[0076] like Figure 1 and 10 As shown, steel arch grippers 12 are installed on the far ends of the wide-type and narrow-type telescopic platforms 13a and 13b, respectively, on each of the interchange-type telescopic platforms. The bottom of the steel arch gripper 12 is a dovetail groove track 12a, and a slide rail seat 12b is installed on the upper part of the dovetail groove track 12a. One end of the double-headed joint 12c is fixed to the slide rail seat 12b, and the other end is equipped with a gripper arm 12d. The other end of the gripper arm 12d is equipped with a clamp 12e.

[0077] In use, the multi-functional equipment for the inspection and maintenance of operating tunnel structures, as described in this invention, is transported to tunnel 1 via a rail flatcar 2. Once it reaches the location requiring inspection / repair, if the railcar is at this time... Figure 1 At the left-hand position, under the action of the drive cylinder 3b4, the connecting plate 3b5 is pushed, and the slide rail wheel assembly 3b3 slides to the right and outward along the welding track 3f1. Simultaneously, the slide rail 3b6 and the slide rail support leg 3b1 slide outward to the right. The left-right length of the slide rail 3b6 can be set to 2.5m, but other distances are possible as needed. Subsequently, under the action of the rotary motor 3b2, the slide rail support leg 3b1 rotates 90° from a horizontal position to a vertical position and gradually extends until the bottom of the slide rail support leg 3b1 contacts the tunnel floor. A pressure sensor is installed on the slide rail support leg 3b1; when the sensor signal indicates pressure, it means that the slide rail support leg 3b1 has extended to its full position. At this point, driven by the hydraulic motor 3e and rack 4d4, the upper module 4 and the testing and repair equipment assembled on it move smoothly 2.5m to the right within the slide rail 3b6 of slide rail 3a, slide rail 3b, and slide rail 3c, respectively. Other distances may be used as needed. Once in position, the hydraulic outrigger 4e quickly extends and contacts the tunnel floor, working together with the slide rail 3b to support the entire upper module 4 and the testing and repair equipment assembled on it. A pressure sensor is installed on the hydraulic outrigger 4e; when the sensor signal indicates pressure, it means that the hydraulic outrigger 4e has extended into position.

[0078] The extension process of the bottom-level interchange telescopic platform 13 is described here as an example; the principle is the same for the other platforms. The fourth-level guide rail of the multi-level guide rail 13b1 is driven to move to the far right by the drive mechanism 13b4. Each guide rail has limit blocks at its end and on the inner side of adjacent guide rails. When the fourth-level guide rail reaches its maximum distance, its own limit block contacts the limit block in the upper-level guide rail. Under the continued drive of the drive mechanism 13b4, the fourth-level guide rail drives the third-level guide rail to continue moving to the right. Following this principle, the movement continues step-by-step through adjacent guide rails until the second-level guide rail is fully extended, at which point the platform moves to the far right along its corresponding guide rail, serving as the working surface. After the work is completed, the second, third, and fourth-level guide rails of the multi-level guide rail 13b1 are retracted sequentially by the drive mechanism 13b4. Then, the upper module 4 and the lower module 3 are slid back to their original positions in the opposite direction.

[0079] When the required operating area is large, the operating range of the work platform can be increased by increasing the number of guide rail stages and platform panel stages. After the bottom-level interchange telescopic platform 13, the middle-level interchange telescopic platform 9, and the upper-level interchange telescopic platform 10 are deployed in place, outriggers can be installed at the lower end or tie rods can be installed at the upper end to improve the load-bearing capacity of the work platform.

[0080] When the railcar is Figure 1 When the slide rail assembly is in the right position, simply extend slide rail assembly 2 3c to the left. Slide rail assembly 2 3c and slide rail assembly 1 3b are structurally identical, and their subsequent actions are exactly the same, only in opposite directions. After slide rail assembly 2 3c is in position, the upper module 4 and the detection and repair equipment assembled on it move to the left under the drive mechanism composed of hydraulic motor 1 3d and rack 4d4. Hydraulic motor 1 3d and hydraulic motor 2 3e are completely identical, sharing the same rack 4d4, and their functions and subsequent actions are exactly the same, only in opposite directions. The fourth-level guide rail of the multi-level guide rail 13b1 is driven to the far left by the drive mechanism 13b4. Under the continued drive of the drive mechanism 13b4, the fourth-level guide rail drives the third-level guide rail to continue moving to the right. Following this principle, through the step-by-step drive of adjacent guide rails, it stops when the second-level guide rail is fully extended. That is, each platform moves to the far right with the corresponding guide rail, and each platform serves as the working surface. After the operation here is completed, the second, third and fourth level guide rails of the multi-level guide rail 13b1 can be retracted in sequence by the drive mechanism 13b4. Then, the upper module 4 and the lower module 3 are slid back in the opposite direction to reset all equipment and mechanisms to the initial transportation state.

Claims

1. A multi-functional equipment for the structural maintenance of operating tunnels, characterized in that, It includes a lower module (3), an upper module (4), and an interchange-type telescopic platform, wherein: The upper module (4) and the lower module (3) are stacked on top of each other, and the lower module (3) can extend to its left or right distal end to provide support to the upper module (4) when it slides to the left or right distal end. The interchange-type telescopic platform is multiple, located above the upper module (4), and its bottom is connected to the upper module (4); the multiple interchange-type telescopic platforms are arranged in sequence in the vertical direction and can move to the left or right end with the upper module (4); Each of the aforementioned interchange telescopic platforms includes: a wide interchange telescopic platform (13a) and a narrow interchange telescopic platform (13b) stacked vertically in the vertical direction, wherein the wide interchange telescopic platform (13a) can extend to the far left end, and the narrow interchange telescopic platform (13b) can extend to the far right end. Both the wide-type interchange telescopic platform (13a) and the narrow-type interchange telescopic platform (13b) include: multi-level guide rails (13b1) and multiple platforms, wherein: the multiple platforms are arranged sequentially along the length of the corresponding multi-level guide rails (13b1), and their heights are staggered sequentially; each of the multi-level guide rails (13b1) is used to drive the corresponding multiple platforms to move to the left or right distal end, and to retract to the proximal end after the operation is completed, so that the multiple platforms are stacked sequentially in the vertical direction; the multiple platforms are used as working platforms; Both the wide-type interchange telescopic platform (13a) and the narrow-type interchange telescopic platform (13b) have three multi-level guide rails (13b1), which are arranged at intervals in the front-to-back direction. In the wide-type interchange telescopic platform (13a), two of the multi-level guide rails (13b1) are located at the foremost and rearmost ends. In the narrow-type interchange telescopic platform (13b), two of the multi-level guide rails (13b1) are located close to the inner side of the foremost and rearmost multi-level guide rails (13b1), and the other two multi-level guide rails (13b1) are located between the two multi-level guide rails (13b1) in the narrow-type interchange telescopic platform (13b). Each of the multi-level guide rails (13b1) includes multiple pairs of guide rails nested together coaxially in sequence. In two adjacent pairs of guide rails, the inner pair of guide rails can slide out to the left or right end along the adjacent outer pair of guide rails. The two multi-level guide rails (13b1) at the front and rear of the wide-type interchange telescopic platform (13a) are connected to the corresponding multiple platforms. The two multi-level guide rails (13b1) at the front and rear of the narrow-type interchange telescopic platform (13b) are connected to the corresponding multiple platforms. The number of platforms is consistent with the number of nested guide rails in the multi-level guide rails (13b1), with one platform corresponding to one pair of nested guide rails. The multi-stage guide rail (13b1) is used to drive the platform to move sequentially to the far end; A drive mechanism (13b4) is provided on each of the two middle multi-stage guide rails (13b1). The lower end of the cylinder base of the drive mechanism (13b4) is fixed on the outermost guide rail of the corresponding multi-stage guide rail (13b1). The tail end of the cylinder is installed in the middle of the cylinder base. The front end of the multi-stage cylinder is connected to the leftmost or rightmost platform. The drive mechanism (13b4) is used to push the leftmost or rightmost platform to drive the guide rail to move to the far end, and in turn drive the adjacent guide rail to move the platform to the far end. In the wide-type multi-level telescopic platform (13a), the front end of the corresponding multi-stage cylinder is connected to the leftmost platform via a vertically arranged intermediate support rod; in the narrow-type multi-level telescopic platform (13b), the front end of the corresponding multi-stage cylinder is connected to the rightmost platform via a vertically arranged intermediate support rod; there are multiple intermediate support rods, which are arranged at intervals along the front and rear of the platform, with their upper ends connected to the platform and their lower ends connected to the far end of the innermost guide rail of each corresponding multi-stage guide rail (13b1); Each platform has its front and rear sides connected to the corresponding guide rails of the two multi-stage guide rails (13b1) by vertically installed support rods (13b2). The height of the support rods (13b2) for each platform is different. The lower module (3) includes: a bottom connector (3f), a slide rail one (3a), a welding rail (3f1), a slide rail assembly one (3b), and a slide rail assembly two (3c), wherein: The bottom connector (3f) is a horizontally arranged square frame; There are multiple slide rails (3a), each slide rail (3a) spans the left and right sides of the bottom connector (3f), and the multiple slide rails (3a) are evenly spaced along the front and back direction of the bottom connector (3f). Each slide rail (3a) is used to support the upper module (4). The welding track (3f1) spans the left and right sides of the bottom connector (3f) and is located near the front and rear ends, with two tracks at the front and rear ends, arranged at intervals. The slide rail assembly one (3b) and slide rail assembly two (3c) are located on the left and right sides of the bottom connector (3f), and there are two of each. Each includes: a slide rail leg (3b1), a slide rail (3b6), a rotary motor (3b2), and a connecting plate (3b5), wherein: The slide rail support leg (3b1) is horizontally arranged, and its rear end is connected to the rotary motor (3b2). The rotary motor (3b2) is used to drive the slide rail support leg (3b1) to rotate with its rear end as a fixed point. The slide rail (3b6) is horizontally positioned within the welding rail (3f1), and its left or right outer end is connected to the top of the slide rail support leg (3b1). A connecting plate (3b5) is connected to the bottom outer end of the slide (3b6) along its entire length, and slide rail wheel sets (3b3) are provided on the left and right sides of the connecting plate (3b5). The connecting plate (3b5) is connected to the driving device, which is a driving cylinder (3b4). Its piston rod is connected to the end of the connecting plate (3b5) located at one end of the slide rail support leg (3b1) through a plate body, and is used to drive the connecting plate (3b5) to drive the slide rail (3b6) to slide to the left or right end.

2. The multi-functional equipment for structural maintenance of operating tunnels as described in claim 1, characterized in that, Hydraulic motor 1 (3d) and hydraulic motor 2 (3e) are respectively provided in the middle of the bottom connector (3f) and on its left and right sides. The hydraulic motor 1 (3d) and hydraulic motor 2 (3e) are used to provide power for the upper module (4) to move to the left and right.

3. The multi-functional equipment for structural maintenance of operating tunnels as described in claim 2, characterized in that, The upper module (4) includes an upper connector (4d), which is a horizontally arranged square frame structure and is the same size as the lower connector (3f). Multiple crossbeams are arranged inside the frame. A rack is arranged on the lower wall of the crossbeam located in the middle of the upper connector (4d) and runs through it along its left and right direction. The rack meshes with the gears of the first hydraulic motor (3d) and the second hydraulic motor (3e).

4. The multi-functional equipment for structural maintenance of operating tunnels as described in claim 3, characterized in that, On the left and right longitudinal beams of the upper connector (4d), and on the lower wall of the longitudinal beam, a plurality of roller assemblies (4a) are provided. The number of roller assemblies (4a) on one side of the longitudinal beam is the same as the number of slide rails (3a). The distance between two adjacent roller assemblies (4a) on the same side of the longitudinal beam is the same as the distance between two adjacent slide rails (3a). Each roller assembly (4a) is disposed in the corresponding slide rail (3a).

5. The multi-functional equipment for structural maintenance of operating tunnels as described in claim 4, characterized in that, Steel arch grabs (12) are provided on each of the aforementioned interchange telescopic platforms, and on the platforms located at the far end of the wide interchange telescopic platform (13a) and the narrow interchange telescopic platform (13b).

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