Mobile platform for tunnel maintenance

Abstract

The utility model relates to the technical field of tunnel engineering, and discloses a mobile platform for tunnel maintenance, which comprises a step table, a platform plate, a first support plate, a second support plate, walking wheels and a driving part. In the using process, the driving pieces on the two sides are controlled to work, and the distance between the first supporting plates on the two sides and the second supporting plates on the two sides can be changed. And finally, the height of the step table can be changed, so that enough driving space can be formed below the step table. Moreover, a design that a plurality of second platform surfaces are sequentially distributed from top to bottom in the height direction of the step table and are all located below the first platform surface is adopted, and meanwhile, a design that a plurality of second platform surfaces are located on the two sides of the first platform surface in the length direction of the step table and are symmetrically distributed in pairs is adopted; a constructor can stand at different heights for construction according to the damaged position of the cambered surface of the top of the tunnel, and different areas of the top of the tunnel can be maintained conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel engineering, for example, to a mobile platform for tunnel maintenance. Background Art

[0002] Related technology (Announcement No.: CN214887084U) discloses a mobile lifting platform for full-section maintenance of tunnels without occupying the road, including tracks, a traveling device, a lifting device, an inclined frame, a ladder, a working platform, a winch and a control device. The tracks are laid in the cable trenches on both sides of the tunnel. The traveling device is connected to the tracks through wheels. The fixed seat of the lifting device is installed on the top surface of the traveling device and connected through the wheel assembly. The sliding seat of the lifting device slides up and down on the guide column controlled by the winch. The inclined frame is connected to the lifting device by bolts. The working platform is installed on the inclined frame. The operator enters the working platform through the ladder to perform tunnel maintenance operations and controls the longitudinal movement and vertical lifting operations of the platform through the control device installed on the traveling device.

[0003] In the process of implementing the above technical solution, it is found that there are at least the following problems in the related technology:

[0004] When the mobile lifting platform for full-section maintenance of the tunnel without occupying the road is in use, vehicles can pass through the passage formed under the construction platform, so as not to affect normal traffic. However, the top of the common curved tunnel is generally higher than the height of the two sides from the ground. Since the platform surface for construction workers to stand on is a horizontal surface, it is difficult for construction workers to touch the top area of ​​the tunnel when they are repairing the top of the tunnel on the working platform, which makes it inconvenient to repair the top area of ​​the tunnel.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to have a basic understanding of some aspects of the disclosed technical solution, a brief summary is given below. The summary is not a general review, but serves as a preface to the detailed description that follows.

[0007] The technical solution disclosed in the present invention provides a mobile platform for tunnel maintenance, so as to facilitate maintenance of different areas on the top of the tunnel.

[0008] In some technical schemes, a mobile platform for tunnel maintenance includes: a step platform, the step platform includes a first platform surface and a plurality of second platform surfaces, along the height direction of the step platform, the plurality of second platform surfaces are distributed in sequence from top to bottom and are all located below the first platform surface, along the length direction of the step platform, the plurality of second platform surfaces are located on both sides of the first platform surface, and are symmetrically distributed in pairs; platform plates are respectively installed on the first platform surface and each of the second platform surfaces; a first support plate is installed on the bottom surface of the step platform and is located on both sides of the step platform along the length direction of the step platform; second support plates are respectively located below two first support plates along the height direction of the step platform, and the planes where the second support plates on both sides are located are parallel to the planes where the first support plates on both sides are located; walking wheels are respectively installed on the second support plates on both sides and are respectively located on both sides of the step platform along the width direction of the step platform; driving members are respectively installed between the opposite surfaces of the first support plates on both sides and the second support plates on both sides, and are configured to change the spacing between the first support plates on both sides and the second support plates on both sides.

[0009] Optionally, the driving member on either side includes: a first support block, located between opposite surfaces of the first support plate and the second support plate on the same side; a second support block, located between opposite surfaces of the first support plate and the second support plate on the same side, and along the width direction of the step platform, the first support block and the second support block are located on both sides of the step platform; a first connecting rod, rotatably connected to the first support block and the second support block on the same side, respectively, the two first connecting rods on the same side are cross-distributed, and are hinged at the intersection; a first support, installed on the first support plate, one of the two first connecting rods on the same side is rotatably installed on the first support on the same side, and the first connecting rods on the same side are cross-distributed and hinged at the intersection. The other of the two first connecting rods on the same side can be slidably installed on the first support on the same side; the second connecting rod is rotatably connected to the first support block and the second support block on the same side, respectively, the two second connecting rods on the same side are cross-distributed and hinged at the intersection; the second support is installed on the second support plate, one of the two second connecting rods on the same side can be rotatably installed on the second support on the same side, and the other of the two second connecting rods on the same side can be slidably installed on the second support on the same side; wherein the first support block and the second support block on the same side are controlled to move toward or in opposite directions to change the distance between the first support plate and the second support plate on the same side.

[0010] Optionally, the driving member on either side also includes: a nut for a screw, which is respectively installed on the second support blocks on both sides; a ball screw, which is respectively installed inside the nuts for the screw on both sides, and is respectively rotatably installed on the first support block on the same side; wherein the ball screws on both sides can be controlled to rotate so that the first support block and the second support block on the same side move toward or in the opposite direction.

[0011] Optionally, the driving member on either side further includes: a motor seat, which is respectively installed on the first supporting blocks on both sides; a driving motor, which is respectively installed on the motor seat on both sides; wherein, driven by the driving motors on both sides, the ball screws on both sides perform rotational motion.

[0012] Optionally, the driving member on either side further includes: a coupling, which is respectively installed between the driving motor and the ball screw on the same side.

[0013] Optionally, the driving member on either side further includes: a screw support, which is respectively installed on the first support blocks on both sides, and the ball screws on both sides are respectively installed inside the screw supports on both sides.

[0014] Optionally, the driving member on either side further includes: a pin shaft, which is respectively passed through the hinges of the two first connecting rods on the same side and the two second connecting rods on the same side.

[0015] Optionally, it also includes: fences, which are installed on each of the platform panels respectively and are used for protection.

[0016] Optionally, it also includes: a ladder, which is installed between two adjacent steps of the step platform and is used for climbing.

[0017] The mobile platform for tunnel maintenance provided by the technical solution disclosed in the present invention can achieve the following technical effects:

[0018] The technical solution disclosed in the present invention provides a mobile platform for tunnel maintenance, including a step platform, a platform plate, a first support plate, a second support plate, running wheels and a driving member. The step platform includes a first platform surface and a plurality of second platform surfaces. Along the height direction of the step platform, the plurality of second platform surfaces are sequentially distributed from top to bottom and are all located below the first platform surface. Along the length direction of the step platform, the plurality of second platform surfaces are located on both sides of the first platform surface and are symmetrically distributed in pairs. The first platform surface and the plurality of second platform surfaces are both used to support and install the platform plate. The platform plates are respectively installed on the first platform surface and each second platform surface, and are both used for construction personnel to stand. The first support plate is installed on the bottom surface of the step platform, and is located on both sides of the step platform along the length direction of the step platform. The first support plates on both sides jointly support the step platform. The second support plates are respectively located below the two first support plates along the height direction of the step platform. The planes where the second support plates on both sides are located are parallel to the planes where the first support plates on both sides are located, and are respectively used to support and install running wheels. The running wheels are respectively installed on the second support plates on both sides, and are respectively located on both sides of the step platform along the width direction of the step platform. The multiple running wheels are used to abut against the ground and drive the entire mobile platform to move. The driving members are respectively installed between the opposite surfaces of the first support plates on both sides and the second support plates on both sides, and are used to provide force to change the distance between the first support plates on both sides and the second support plates on both sides.

[0019] During use, the distance between the first support plate and the second support plate on both sides can be changed by controlling the driving parts on both sides to work. Finally, the height of the step platform can be changed, so that sufficient driving space can be formed below the step platform to facilitate normal traffic of vehicles. By controlling the operation of multiple walking wheels, the mobile platform can be moved along the tunnel, so as to repair the entire tunnel. In addition, a design is adopted in which multiple second platform surfaces are distributed from top to bottom in sequence along the height direction of the step platform and are all located below the first platform surface. At the same time, a design is adopted in which multiple second platform surfaces are located on both sides of the first platform surface and are symmetrically distributed in pairs along the length direction of the step platform, so that multiple platform plates are distributed from top to bottom in sequence and are symmetrical parts on both sides. Therefore, construction personnel can stand at different heights to carry out construction according to the damaged part of the arc surface at the top of the tunnel, which is convenient for repairing different areas at the top of the tunnel.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1It is a structural schematic diagram of a mobile platform for tunnel maintenance provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure at CC in the middle.

[0026] Reference numerals:

[0027] 100: step platform; 200: platform plate; 300: first support plate; 400: second support plate; 500: walking wheel; 600: driving member; 601: first support block; 602: second support block; 603: first connecting rod; 604: first support; 605: second connecting rod; 606: second support; 607: nut for screw; 608: ball screw; 609: motor seat; 610: driving motor; 611: coupling; 700: fence; 800: ladder. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0034] Example 1

[0035] Combination Figures 1 to 4As shown, the embodiment of the present disclosure provides a mobile platform for tunnel maintenance, including a step platform 100, a platform plate 200, a first support plate 300, a second support plate 400, a walking wheel 500 and a driving member 600. The step platform 100 includes a first platform surface and a plurality of second platform surfaces. Along the height direction of the step platform 100, the plurality of second platform surfaces are sequentially distributed from top to bottom and are all located below the first platform surface. Along the length direction of the step platform 100, the plurality of second platform surfaces are located on both sides of the first platform surface, and are symmetrically distributed in pairs. The first platform surface and the plurality of second platform surfaces are both used to support and install the platform plate 200. The platform plates 200 are respectively installed on the first platform surface and each second platform surface, and are all used for construction personnel to stand. The first support plate 300 is installed on the bottom surface of the step platform 100, and is located on both sides of the step platform 100 along the length direction of the step platform 100. The first support plates 300 on both sides jointly support the step platform 100. The second support plates 400 are respectively located below the two first support plates 300 along the height direction of the step platform 100, and the planes where the second support plates 400 on both sides are located are parallel to the planes where the first support plates 300 on both sides are located, and are respectively used to support and install the walking wheels 500. The walking wheels 500 are respectively installed on the second support plates 400 on both sides, and are respectively located on both sides of the step platform 100 along the width direction of the step platform 100. The multiple walking wheels 500 are all used to abut against the ground and drive the entire mobile platform to move. The driving members 600 are respectively installed between the opposite surfaces of the first support plates 300 on both sides and the second support plates 400 on both sides, and are all used to provide force to change the distance between the first support plates 300 on both sides and the second support plates 400 on both sides.

[0036] The present disclosure provides a mobile platform for tunnel maintenance. By controlling the driving members 600 on both sides to work, the spacing between the first support plates 300 and the second support plates 400 on both sides can be changed. Finally, the height of the step platform 100 can be changed, so that sufficient driving space can be formed below the step platform 100 to facilitate normal vehicle traffic. By controlling the operation of multiple walking wheels 500, the mobile platform can be moved along the tunnel, thereby repairing the entire tunnel. In addition, a design is adopted in which multiple second platform surfaces are distributed from top to bottom in sequence along the height direction of the step platform 100 and are all located below the first platform surface. At the same time, a design is adopted in which multiple second platform surfaces are located on both sides of the first platform surface and are symmetrically distributed in pairs along the length direction of the step platform 100, so that multiple platform plates 200 are distributed from top to bottom in sequence and are symmetrical parts on both sides. Therefore, construction personnel can stand at different heights to carry out construction according to the damaged part of the arc surface at the top of the tunnel, which is convenient for repairing different areas at the top of the tunnel.

[0037] Example 2

[0038] Optionally, combined Figures 1 to 4As shown, the driving member 600 on either side includes a first support block 601, a second support block 602, a first connecting rod 603, a first support 604, a second connecting rod 605 and a second support 606. The first support block 601 is located between the opposite surfaces of the first support plate 300 and the second support plate 400 on the same side, and is used to support and install the rotatable first connecting rod 603 and the second connecting rod 605. The second support block 602 is located between the opposite surfaces of the first support plate 300 and the second support plate 400 on the same side, and is also used to support and install the rotatable first connecting rod 603 and the second connecting rod 605. Along the width direction of the step platform 100, the first support block 601 and the second support block 602 are located on both sides of the step platform 100, so that the first connecting rod 603 and the second connecting rod 605 are cross-distributed. The first connecting rod 603 is rotatably connected to the first supporting block 601 and the second supporting block 602 on the same side, respectively. The two first connecting rods 603 on the same side are cross-distributed and hinged at the intersection. The two first connecting rods 603 can rotate with each other and can rotate with respect to the first supporting block 601 and the second supporting plate 400. The first support 604 is installed on the first supporting plate 300. One of the two first connecting rods 603 on the same side is rotatably installed on the first support 604 on the same side, and the other of the two first connecting rods 603 on the same side is slidably installed on the first support 604 on the same side. The two first connecting rods 603 can rotate and slide with respect to the first support 604. The second connecting rod 605 is rotatably connected to the first supporting block 601 and the second supporting block 602 on the same side, respectively. The two second connecting rods 605 on the same side are cross-distributed and hinged at the intersection. The two second connecting rods 605 can rotate with each other and can rotate with respect to the first supporting block 601 and the second supporting plate 400. The second support 606 is mounted on the second support plate 400, one of the two second connecting rods 605 on the same side is rotatably mounted on the second support 606 on the same side, the other of the two second connecting rods 605 on the same side is slidably mounted on the second support 606 on the same side, and the two second connecting rods 605 can respectively rotate and slide relative to the second support 606. The first support block 601 and the second support block 602 on the same side are controlled to move toward or in opposite directions to change the distance between the first support plate 300 and the second support plate 400 on the same side.

[0039] In the disclosed embodiment, the first support block 601, the second support block 602, the first connecting rod 603, the first support 604, the second connecting rod 605 and the second support 606 together constitute a scissor-type connecting rod structure. During use, driven by an external force, the first support block 601 and the second support block 602 on the same side are controlled to move toward or in the opposite direction, and then the two first connecting rods 603 and the two second connecting rods 605 on the same side can be driven to rotate with each other. Then, the spacing between the first support 604 and the second support 606 is changed, and then the spacing between the first support plate 300 and the second support plate 400 is changed, and finally the height adjustment function of the step platform 100 is realized. In addition, the design of the scissor-type connecting rod structure has the advantages of good scalability and strong stability.

[0040] Example 3

[0041] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, the driving member 600 on either side also includes a screw nut 607 and a ball screw 608. The screw nuts 607 are respectively mounted on the second support blocks 602 on both sides, and are respectively used to support and install the ball screws 608. The ball screws 608 are respectively mounted inside the screw nuts 607 on both sides, and are respectively rotatably mounted on the first support block 601 on the same side, and are both used to convert rotational motion into linear motion. Among them, the ball screws 608 on both sides can be controlled to rotate so that the first support block 601 and the second support block 602 on the same side move toward or in the opposite direction.

[0042] In the disclosed embodiment, the ball screws 608 on both sides can rotate under the drive of external force. Then the screw nuts 607 can drive the second support block 602 to move closer to or away from the first support block 601. The first support block 601 and the second support block 602 on the same side move toward or in the opposite direction, and finally change the height of the step platform 100. In addition, the design of the screw nut pair can achieve self-locking and smooth movement.

[0043] Example 4

[0044] Optionally, combined Figure 4 As shown, the driving member 600 on either side further includes a motor seat 609 and a driving motor 610. The motor seats 609 are respectively mounted on the first supporting blocks 601 on both sides, and are respectively used to support and install the driving motors 610. The driving motors 610 are respectively mounted on the motor seats 609 on both sides, and are respectively used to provide driving force. Among them, under the drive of the driving motors 610 on both sides, the ball screws 608 on both sides perform rotational motion.

[0045] In the disclosed embodiment, by controlling the driving motors 610 on both sides to work, the ball screws 608 on both sides can be made to rotate, thereby finally realizing the automatic height adjustment function of the step platform 100 and saving manpower.

[0046] Example 5

[0047] Optionally, combined Figure 4 As shown, the driving member 600 on either side further includes a coupling 611. The coupling 611 is respectively installed between the driving motor 610 and the ball screw 608 on the same side.

[0048] In the disclosed embodiment, the driving member 600 on either side further includes a coupling 611 installed between the driving motor 610 and the ball screw 608 on the same side. During use, the driving motors 610 on both sides are controlled to work, and the two ball screws 608 can be driven to rotate through the couplings 611 on both sides.

[0049] Example 6

[0050] Optionally, combined Figure 4 As shown, the driving member 600 on either side further includes a screw support, which is respectively mounted on the first support blocks 601 on both sides, and the ball screws 608 on both sides are respectively mounted inside the screw supports on both sides.

[0051] In the disclosed embodiment, the driving member 600 on either side further includes a screw support installed between the first support block 601 on the same side and the ball screw 608. The screw supports on both sides are used to reduce the friction between the ball screws 608 on both sides and the first support blocks 601 on both sides, and to improve the rotation accuracy of the ball screws 608 on both sides relative to the first support blocks 601 on both sides.

[0052] Example 7

[0053] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, the driving member 600 on either side further includes a pin shaft, which is respectively disposed through the hinges of the two first connecting rods 603 and the two second connecting rods 605 on the same side.

[0054] In the embodiment of the present disclosure, the driving member 600 on either side further includes a pin shaft penetrating the hinged joints of the two first connecting rods 603 on the same side and the two second connecting rods 605 on the same side. The pin shaft is used as a connecting member to realize the hinged joint so that the two first connecting rods 603 and the two second connecting rods 605 on the same side can rotate relative to each other.

[0055] Example 8

[0056] Optionally, combined Figure 1 and Figure 2As shown, fences 700 are also included. The fences 700 are respectively installed on each platform plate 200 and are used for protection.

[0057] In the embodiment of the present disclosure, fences 700 are also included, which are respectively installed on each platform board 200. The multiple fences 700 are used for protection to prevent construction workers from falling.

[0058] Example 9

[0059] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a ladder 800. The ladder 800 is respectively installed between two adjacent steps of the step platform 100 and is used for climbing.

[0060] In the embodiment of the present disclosure, ladders 800 are also included, which are respectively installed between two adjacent steps of the step platform 100. The multiple ladders 800 are all used for climbing, so that construction workers can work between different platform plates 200.

[0061] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A mobile platform for tunnel maintenance, characterized in that: include: A stepped platform, the stepped platform comprising a first platform surface and a plurality of second platform surfaces, wherein the plurality of second platform surfaces are sequentially distributed from top to bottom along the height direction of the stepped platform and are all located below the first platform surface, and the plurality of second platform surfaces are located on both sides of the first platform surface along the length direction of the stepped platform and are symmetrically distributed in pairs; a platform plate, mounted on the first platform surface and each of the second platform surfaces respectively; A first support plate is installed on the bottom surface of the step platform and is located on both sides of the step platform along the length direction of the step platform; The second support plates are respectively located below the two first support plates along the height direction of the step platform, and the planes where the second support plates on both sides are located are parallel to the planes where the first support plates on both sides are located; Traveling wheels are respectively mounted on the second supporting plates at both sides, and are respectively located on both sides of the step platform along the width direction of the step platform; The driving members are respectively installed between the opposite surfaces of the first supporting plates on both sides and the second supporting plates on both sides, and are configured to change the distance between the first supporting plates on both sides and the second supporting plates on both sides.

2. A mobile platform for tunnel maintenance according to claim 1, characterized in that: The driving member on either side includes: a first support block, located between opposite surfaces of the first support plate and the second support plate on the same side; A second support block is located between opposite surfaces of the first support plate and the second support plate on the same side, and along the width direction of the step platform, the first support block and the second support block are located on both sides of the step platform; A first connecting rod, rotatably connected to the first supporting block and the second supporting block on the same side, respectively, and the two first connecting rods on the same side are cross-distributed and hinged at the intersection; A first support is mounted on the first support plate, one of the two first connecting rods on the same side is rotatably mounted on the first support on the same side, and the other of the two first connecting rods on the same side is slidably mounted on the first support on the same side; A second connecting rod is rotatably connected to the first supporting block and the second supporting block on the same side, and the two second connecting rods on the same side are cross-distributed and hinged at the intersection; A second support is mounted on the second support plate, one of the two second connecting rods on the same side is rotatably mounted on the second support on the same side, and the other of the two second connecting rods on the same side is slidably mounted on the second support on the same side; The first support block and the second support block on the same side are controlled to move toward or in opposite directions to change the distance between the first support plate and the second support plate on the same side.

3. A mobile platform for tunnel maintenance according to claim 2, characterized in that: The driving member on either side also includes: Nuts for the lead screw are respectively mounted on the second support blocks on both sides; A ball screw is installed inside the screw nuts on both sides, and is rotatably installed on the first support block on the same side; The ball screws on both sides can be controlled to rotate so that the first support block and the second support block on the same side move toward or in opposite directions.

4. A mobile platform for tunnel maintenance according to claim 3, characterized in that: The driving member on either side also includes: A motor seat, mounted on the first supporting blocks on both sides respectively; The driving motors are respectively installed on the motor seats on both sides; Wherein, driven by the driving motors on both sides, the ball screws on both sides perform rotational motion.

5. A mobile platform for tunnel maintenance according to claim 4, characterized in that: The driving member on either side also includes: The couplings are respectively installed between the driving motor and the ball screw on the same side.

6. A mobile platform for tunnel maintenance according to claim 3, characterized in that: The driving member on either side also includes: The screw supports are respectively installed on the first support blocks on both sides, and the ball screws on both sides are respectively installed inside the screw supports on both sides.

7. The mobile platform for tunnel maintenance according to claim 2, characterized in that: The driving member on either side also includes: The pins are respectively arranged through the hinges of the two first connecting rods on the same side and the two second connecting rods on the same side.

8. A mobile platform for tunnel maintenance according to any one of claims 1 to 7, characterized in that: Also includes: Fences are respectively installed on each of the platform panels for protection.

9. A mobile platform for tunnel maintenance according to any one of claims 1 to 7, characterized in that: Also includes: Ladders are respectively installed between two adjacent steps of the step platform and are used for climbing.

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