Overhaul platform and method for tunnel maintenance

Abstract

The invention discloses a maintenance platform and method for tunnel maintenance. The problem that in the prior art, a scaffold is inconvenient to move after being built is solved. The device comprises a moving trolley capable of moving on a track, a plurality of lap joint frames detachably arranged on the moving trolley, a connecting mechanism arranged between every two adjacent lap joint frames, an extension mechanism detachably arranged between a fixing mechanism and the connecting mechanism, and an anti-slip mechanism arranged on the moving trolley and used for fixing the moving trolley. Through cooperation of the lap joint frames and the connecting mechanisms, the two adjacent lap joint frames can be conveniently assembled and disassembled, meanwhile, the extension mechanisms can be conveniently installed so that the use space of the lap joint frames can be increased, and in addition, the movable trolley can further drive the lap joint frames to move so that the positions of the lap joint frames can be adjusted.

Description

Technical Field

[0001] This invention belongs to the technical field of tunnel maintenance platforms, specifically relating to a tunnel maintenance inspection platform and method. Background Technology

[0002] To eliminate defects in railway tunnels and ensure safe train operation, tunnel maintenance and repair are frequently required. Tunnel defects mainly include insufficient clearance, lining cracks, water leakage, and pollution.

[0003] Among railway inspection and maintenance work, the inspection and maintenance of railway tunnels is the most difficult. Due to the narrow space in railway tunnels, it is not convenient for large engineering equipment to enter. The traditional tunnel inspection process is generally carried out by manual maintenance and inspection of tunnels by standing on scaffolding. However, the scaffolding takes a lot of time to set up, which affects the efficiency of tunnel maintenance and inspection. Summary of the Invention

[0004] The present invention provides a maintenance platform and method for tunnel maintenance, so as to at least solve some of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A tunnel maintenance and inspection platform includes a mobile trolley that can move on a track, several detachable connecting frames on the mobile trolley, a connecting mechanism between two adjacent connecting frames, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley for fixing the mobile trolley.

[0006] Furthermore, the scaffolding includes four detachable support columns mounted on the mobile trolley, a support crossbar between two adjacent connecting mechanisms, a detachable receiving plate between two support crossbars, and a reinforcing rod inclined between the mobile trolley and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns are respectively provided with connecting columns that are connected to the mobile trolley and the connecting mechanism.

[0007] Furthermore, the connecting mechanism includes a connecting sleeve threaded to the connecting column, a connecting disc located in the middle of the connecting sleeve and connected to the supporting crossbar and the extension mechanism, and a reinforcing fixing block threaded inside the connecting sleeve; the reinforcing rod and the reinforcing fixing block are detachably connected.

[0008] Furthermore, the connecting plate is provided with several insertion holes, and the support crossbar and extension mechanism are respectively provided with insertion posts that are adapted to the insertion holes, and the insertion posts are inserted into the insertion holes.

[0009] Furthermore, the reinforcing block is equipped with a connecting seat, and the reinforcing rod is fixed to the connecting seat by a pin.

[0010] Furthermore, the extension mechanism includes an extension plate detachably disposed between two adjacent connecting plates, and a support diagonal rod with one end connected to the bottom of the extension plate and the other end connected to the moving trolley.

[0011] Furthermore, the mobile trolley is equipped with a column fixing seat connected to the connecting column, and a reinforcing connecting seat provided on the column fixing seat and connected to the reinforcing rod or extension mechanism.

[0012] Furthermore, the anti-slip mechanism includes a fixed frame mounted on the moving trolley, a drive rod slidably mounted on the fixed frame, a clamping mechanism mirror-symmetrically mounted on the fixed frame and connected to the drive rod, and a threaded rod rotatably mounted on the moving trolley and connected to the drive rod; the threaded rod is provided with a rotating handle.

[0013] Furthermore, the clamping mechanism includes a clamping seat mounted on a fixed frame, clamping arms rotatably mounted on the clamping seat and located on both sides of the track, and a transmission arm slidably mounted inside the clamping arms, with one end hinged to the clamping arms and the other end connected to the drive rod.

[0014] A method for using a tunnel maintenance and inspection platform includes the following steps: S1. Move the mobile cart to the desired position; S2. Install the support column into the column fixing seat, then install the connecting mechanism on the support column, install the support crossbar between two adjacent connecting mechanisms, and install one end of the reinforcing rod on the connecting mechanism and the other end on the reinforcing connecting seat; S3. When assembling the next layer of the scaffolding, install the support column inside the connecting mechanism, then install the connecting mechanism on the support column, install the support crossbar between two adjacent connecting mechanisms, install one end of the reinforcing rod on the upper connecting mechanism and the other end on the lower connecting mechanism, and then install the receiving plate between two adjacent receiving plates to complete the assembly of the scaffolding. S4. When it is necessary to be close to the tunnel sidewall, the extension plate is installed with a pin, and then the support diagonal rod is installed between the extension plate and / or the reinforcing connector to increase the space of the support plate; S6. After the mobile trolley stops moving, the maintenance personnel turn the rotating handle. Turning the handle drives the threaded rod to rotate, which in turn drives the drive rod to move. The drive rod drives the two clamping mechanisms to operate synchronously and clamp the track to prevent the mobile trolley from moving after it stops. S6. When inspecting a double-track tunnel, simply place two mobile trolleys on two separate tracks. The two mobile trolleys are connected by a support crossbar and a connecting mechanism to achieve synchronous movement of the two mobile trolleys.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a simple structure, a scientific and reasonable design, and is easy to use. The present invention uses the overlapping frame and the connecting mechanism to facilitate the assembly and disassembly of two adjacent overlapping frames. At the same time, it also facilitates the installation of the extension mechanism to increase the usable space of the overlapping frame. In addition, the moving trolley can also drive the overlapping frame to move to adjust the position of the overlapping frame.

[0016] 2. The anti-slip mechanism of this invention can easily fix the mobile trolley to prevent it from slipping after it stops, thereby improving the safety of maintenance personnel in using the maintenance platform.

[0017] 3. The present invention uses a combination of a splicing frame and a connecting mechanism to enable the maintenance platform to be used in dual-track tunnels, thereby expanding the applicability of the maintenance platform.

[0018] 4. The connecting sleeve is installed on the support column. At this time, the support crossbar is inserted into the connecting plate, and another reinforcing fixing block is installed in the connecting sleeve to fix the support crossbar. Then, the reinforcing rod is installed on the reinforcing fixing block to complete the assembly of the lap frame, thereby realizing the quick installation and disassembly of the lap frame. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the lap joint frame of the present invention.

[0021] Figure 3 This is a schematic diagram of the connecting mechanism of the present invention.

[0022] Figure 4 This is a cross-sectional view of the connecting mechanism of the present invention.

[0023] Figure 5 This is a schematic diagram of the connecting sleeve of the present invention.

[0024] Figure 6 This is a schematic diagram of the reinforcing fixing block of the present invention.

[0025] Figure 7 This is a schematic diagram of the column fixing base of the present invention.

[0026] Figure 8 This is a schematic diagram of the anti-slip mechanism for the column of the present invention.

[0027] Figure 9 This is a schematic diagram of the clamping mechanism of the present invention.

[0028] Figure 10 This is a schematic diagram of the supporting column of the present invention.

[0029] Figure 11This is a schematic diagram illustrating the use of the dual-track tunnel of the present invention.

[0030] The names corresponding to the reference numerals in the attached figures are as follows: 1. Mobile trolley; 2. Overlapping frame; 3. Support column; 4. Support crossbar; 5. Support plate; 6. Reinforcing rod; 7. Connecting column; 8. Connecting sleeve; 9. Connecting plate; 10. Reinforcing fixing block; 11. Insertion hole; 12. Insertion column; 13. Connecting seat; 14. Extension plate; 15. Support diagonal bar; 16. Column fixing seat; 17. Fixing frame; 18. Drive rod; 19. Threaded rod; 20. Rotating handle; 21. Clamping seat; 22. Clamping arm; 23. Transmission arm; 24. Reinforcing connecting seat; 25. Transmission guide groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Example 1, such as Figure 1-11As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0035] The present invention uses the overlapping frame 2 and the connecting mechanism to facilitate the assembly and disassembly of two adjacent overlapping frames 2, and also facilitates the installation of the extension mechanism to increase the usable space of the overlapping frame 2.

[0036] The anti-slip mechanism of this invention can easily fix the mobile trolley 1 to prevent it from slipping after it stops, thereby improving the safety of maintenance personnel in using the maintenance platform.

[0037] When using this invention, the position of the overlapping frame 2 can be adjusted by pushing the mobile trolley 1 to slide on the track. When the mobile trolley 1 moves to the required position, the overlapping frame 2 is installed on the mobile trolley 1. Maintenance personnel can install two adjacent overlapping frames 2 or extension mechanisms according to the height of the tunnel through the connecting mechanism, thereby increasing the height and width of the overlapping frame 2, so as to facilitate maintenance personnel to maintain and repair the tunnel.

[0038] Example 2, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0039] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0040] In this embodiment 2, four support columns 3 are provided, and the support columns 3 are distributed in a rectangular structure. The connecting mechanisms are installed on the support columns 3 and are arranged in a one-to-one correspondence with the support columns 3. The support crossbars 4 are inserted between two adjacent connecting mechanisms. The receiving plate 5 is detachably installed between two mirror-symmetrically arranged support crossbars 4. At this time, maintenance personnel can stand on the receiving plate 5 to maintain and service the tunnel. In this invention, the connecting column 7 not only facilitates the installation of the support columns 3, but also limits and installs the connecting mechanisms.

[0041] In this embodiment 2, the reinforcing rod 6 is inclinedly arranged between the two supporting columns 3. The reinforcing rod 6 is not provided on both sides of the mounting support plate 5. One end of the reinforcing rod 6 is connected to the connecting mechanism through a pin, and the other end is connected to the reinforcing connecting seat 24 through a pin, thereby increasing the stability of the supporting column 3.

[0042] Example 3, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0043] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0044] The connecting mechanism includes a connecting sleeve 8 threaded to the connecting column 7, a connecting disc 9 located in the middle of the connecting sleeve 8 and connected to the supporting crossbar 4 and the extension mechanism, and a reinforcing fixing block 10 threaded to the connecting sleeve 8; the reinforcing rod 6 and the reinforcing fixing block 10 are detachably connected.

[0045] In this embodiment 3, the connecting sleeve 8 and the reinforcing fixing block 10 are connected by threads. It should be further explained that the inner ring of the connecting sleeve 8 is provided with internal threads and the outer ring is provided with external threads. The reinforcing fixing block 10 is provided with external threads that are compatible with the internal threads, so as to facilitate the connection between the reinforcing fixing block 10 and the connecting sleeve 8.

[0046] In this embodiment 3, one of the reinforcing fixing blocks 10 is installed on the top of the support column 3. Then, the connecting sleeve 8 is installed on the support column 3. At this time, the support crossbar 4 is inserted into the connecting plate 9, and another reinforcing fixing block 10 is installed into the connecting sleeve 8 to fix the support crossbar 4. Then, the reinforcing rod 6 is installed on the reinforcing fixing block 10 to complete the assembly of the overlapping frame 2, thereby realizing the quick installation and disassembly of the overlapping frame 2.

[0047] Example 4, as Figure 1-11As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0048] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0049] The connecting mechanism includes a connecting sleeve 8 threaded to the connecting column 7, a connecting disc 9 located in the middle of the connecting sleeve 8 and connected to the supporting crossbar 4 and the extension mechanism, and a reinforcing fixing block 10 threaded to the connecting sleeve 8; the reinforcing rod 6 and the reinforcing fixing block 10 are detachably connected.

[0050] The connecting plate 9 is provided with several insertion holes 11, and the supporting crossbar 4 and the extension mechanism are respectively provided with insertion posts 12 that are adapted to the insertion holes 11. The insertion posts 12 are inserted into the insertion holes 11.

[0051] In this embodiment 4, during installation, the support crossbar 4 and the extension mechanism can be installed simply by inserting the plug-in post 12 into the plug-in hole 11, thereby improving the installation efficiency of the support crossbar 4 and the extension mechanism.

[0052] Example 5, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0053] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0054] The connecting mechanism includes a connecting sleeve 8 threaded to the connecting column 7, a connecting disc 9 located in the middle of the connecting sleeve 8 and connected to the supporting crossbar 4 and the extension mechanism, and a reinforcing fixing block 10 threaded to the connecting sleeve 8; the reinforcing rod 6 and the reinforcing fixing block 10 are detachably connected.

[0055] The reinforcing block 10 is provided with a connecting seat 13, and the reinforcing rod 6 is fixed to the connecting seat 13 by a pin.

[0056] In this embodiment 5, the connecting seat 13 facilitates the installation of the reinforcing rod 6, and the fixing of the reinforcing rod 6 by the pin can improve the installation efficiency of the overlapping frame 2.

[0057] Example 6, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0058] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0059] The connecting mechanism includes a connecting sleeve 8 threaded to the connecting column 7, a connecting disc 9 located in the middle of the connecting sleeve 8 and connected to the supporting crossbar 4 and the extension mechanism, and a reinforcing fixing block 10 threaded to the connecting sleeve 8; the reinforcing rod 6 and the reinforcing fixing block 10 are detachably connected.

[0060] The extension mechanism includes an extension plate 14 that is detachably disposed between two adjacent connecting plates 9, and a support diagonal rod 15 that is connected at one end to the bottom of the extension plate 14 and at the other end to the moving trolley 1.

[0061] In this embodiment 6, the plug-in post 12 is located on one side of the extension plate 14. During installation, the plug-in post 12 on the extension plate 14 is inserted into the plug-in groove. Then, one end of the support diagonal rod 15 is connected to the bottom of the extension plate 14 through a pin, and the other end is connected to the reinforcing connecting seat 24 through a pin, thereby fixing the extension plate 14 and making it convenient for maintenance personnel to stand on the extension plate 14 to maintain the tunnel.

[0062] Example 7, as Figure 1-11As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0063] The lap frame 2 includes four detachable support columns 3 on the mobile trolley 1, a support crossbar 4 between two adjacent connecting mechanisms, a detachable receiving plate 5 between two support crossbars 4, and a reinforcing rod 6 inclined between the mobile trolley 1 and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns 3 are respectively provided with connecting columns 7 that are connected to the mobile trolley 1 and the connecting mechanism.

[0064] The mobile trolley 1 is provided with a column fixing seat 16 connected to the connecting column 7, and a reinforcing connecting seat 24 provided on the column fixing seat 16 and connected to the reinforcing rod 6 or the extension mechanism.

[0065] In this embodiment 7, the column fixing seat 16 is mounted on the mobile trolley 1, and the column fixing seat 16 has a threaded hole in the middle that is compatible with the connecting column 7. The connecting column 7 is fixed in the threaded hole by threads, which facilitates the installation of the supporting column 3. In addition, the reinforcing connecting seat 24 is arranged around the outside of the column fixing seat 16. The reinforcing connecting seat 24 is fixed to the reinforcing rod 6 and the supporting diagonal rod 15 by pins, which facilitates the assembly of the overlapping frame 2.

[0066] Example 8, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0067] The anti-slip mechanism includes a fixed frame 17 mounted on the mobile trolley 1, a drive rod 18 slidably mounted on the fixed frame 17, a clamping mechanism mirror-symmetrically mounted on the fixed frame 17 and connected to the drive rod 18, and a threaded rod 19 rotatably mounted on the mobile trolley 1 and connected to the drive rod 18; the threaded rod 19 is provided with a rotating handle 20.

[0068] In this embodiment 8, when the mobile trolley 1 stops, the maintenance personnel rotate the handle 20. The rotating handle 20 drives the threaded rod 19 to rotate. During the rotation, the threaded rod 19 pushes the drive rod 18 to move. During the movement, the drive rod 18 drives the clamping mechanism to operate. The clamping mechanism clamps both sides of the track, thereby preventing the mobile trolley 1 from slipping and providing safety for the maintenance personnel.

[0069] Example 9, as Figure 1-11 As shown, the present invention provides a tunnel maintenance and inspection platform, including a mobile trolley 1 that can move on a track, a detachable connecting frame 2 on the mobile trolley 1, a connecting mechanism between two adjacent connecting frames 2, an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the mobile trolley 1 for fixing the mobile trolley 1.

[0070] The anti-slip mechanism includes a fixed frame 17 mounted on the mobile trolley 1, a drive rod 18 slidably mounted on the fixed frame 17, a clamping mechanism mirror-symmetrically mounted on the fixed frame 17 and connected to the drive rod 18, and a threaded rod 19 rotatably mounted on the mobile trolley 1 and connected to the drive rod 18; the threaded rod 19 is provided with a rotating handle 20.

[0071] The clamping mechanism includes a clamping seat 21 mounted on a fixed frame 17, clamping arms 22 rotatably mounted on the clamping seat 21 and located on both sides of the track, and a transmission arm 23 slidably mounted inside the clamping seat 21, with one end hinged to the clamping arm 22 and the other end connected to the drive rod 18.

[0072] In this embodiment 9, the drive rod 18 drives the transmission arm 23 to move synchronously during the movement. The transmission arm 23 drives the clamping arm 22 to clamp or release during the movement (when the drive rod 18 moves upward, the two clamping arms 22 clamp the track; when the drive rod 18 moves downward, the two clamping arms 22 release the track), so as to facilitate the fixing and movement of the clamping arm 22. The clamping seat 21 of this invention is provided with a transmission guide groove 25 adapted to the transmission arm 23. The transmission arm 23 is slidably installed in the transmission guide groove 25 and is connected to the clamping arm 22 and the drive rod 18 respectively.

[0073] A method for using a tunnel maintenance and inspection platform includes the following steps: S1. Move the mobile trolley 1 to the desired position; S2. Install the support column 3 into the column fixing seat 16, then install the connecting mechanism on the support column 3, install the support crossbar 4 between two adjacent connecting mechanisms, and install one end of the reinforcing rod 6 on the connecting mechanism and the other end on the reinforcing connecting seat 24; S3. When assembling the next layer of lap frame 2, install the support column 3 inside the connecting mechanism, then install the connecting mechanism on the support column 3, install the support crossbar 4 between two adjacent connecting mechanisms, install one end of the reinforcing rod 6 on the upper connecting mechanism and the other end on the lower connecting mechanism, then install the receiving plate 5 between two adjacent receiving plates 5 to complete the assembly of lap frame 2; S4. When it is necessary to be close to the tunnel sidewall, the extension plate 14 is installed by means of a pin, and then the support diagonal rod 15 is installed between the extension plate 14 and / or the reinforcing connecting seat 24 to increase the space of the receiving plate 5. S6. After the mobile trolley 1 stops moving, the maintenance personnel turn the rotating handle 20. The rotating handle 20 drives the threaded rod 19 to rotate, the threaded rod 19 drives the drive rod 18 to move, and the drive rod 18 drives the two clamping mechanisms to run synchronously to clamp the track and prevent the mobile trolley from moving after stopping. S6. When inspecting a double-track tunnel, simply place two mobile trolleys 1 on two tracks respectively. The two mobile trolleys 1 are connected by a support crossbar 4 and a connecting mechanism to achieve synchronous movement of the two mobile trolleys 1.

[0074] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. A maintenance and inspection platform for tunnels, characterized in that, It includes a movable trolley (1) that can move on a track, several detachable connecting frames (2) on the movable trolley (1), a connecting mechanism between two adjacent connecting frames (2), an extension mechanism detachably provided between the fixing mechanism and the connecting mechanism, and an anti-slip mechanism provided on the movable trolley (1) for fixing the movable trolley (1).

2. The tunnel maintenance and inspection platform according to claim 1, characterized in that, The lap frame (2) includes four detachable support columns (3) on the mobile trolley (1), a support crossbar (4) between two adjacent connecting mechanisms, a detachable support plate (5) between two support crossbars (4), and a reinforcing rod (6) between the mobile trolley (1) and the connecting mechanism or between two adjacent connecting mechanisms; the two ends of the support columns (3) are respectively provided with connecting columns (7) that are connected to the mobile trolley (1) and the connecting mechanism.

3. The tunnel maintenance and inspection platform according to claim 2, characterized in that, The connecting mechanism includes a connecting sleeve (8) threaded to the connecting column (7), a connecting plate (9) located in the middle of the connecting sleeve (8) and connected to the support crossbar (4) and the extension mechanism, and a reinforcing fixing block (10) threaded to the connecting sleeve (8); the reinforcing rod (6) and the reinforcing fixing block (10) are detachably connected.

4. The tunnel maintenance and inspection platform according to claim 3, characterized in that, The connecting plate (9) is provided with several insertion holes (11), and the support crossbar (4) and the extension mechanism are respectively provided with insertion posts (12) that are adapted to the insertion holes (11). The insertion posts (12) are inserted into the insertion holes (11).

5. A tunnel maintenance and inspection platform according to claim 3, characterized in that, The reinforcing fixing block (10) is provided with a connecting seat (13), and the reinforcing rod (6) is fixed to the connecting seat (13) by a pin.

6. A tunnel maintenance and inspection platform according to claim 3, characterized in that, The extension mechanism includes an extension plate (14) that is detachably disposed between two adjacent connecting plates (9), and a support diagonal rod (15) that is connected at one end to the bottom of the extension plate (14) and at the other end to the moving trolley (1).

7. A tunnel maintenance and inspection platform according to claim 2, characterized in that, The mobile trolley (1) is provided with a column fixing seat (16) connected to the connecting column (7), and a reinforcing connecting seat (24) provided on the column fixing seat (16) and connected to the reinforcing rod (6) or the extension mechanism.

8. A tunnel maintenance and inspection platform according to claim 1, characterized in that, The anti-slip mechanism includes a fixed frame (17) mounted on the moving trolley (1), a drive rod (18) slidably mounted on the fixed frame (17), a clamping mechanism mirror-symmetrically mounted on the fixed frame (17) and connected to the drive rod (18), and a threaded rod (19) rotatably mounted on the moving trolley (1) and connected to the drive rod (18); the threaded rod (19) is provided with a rotating handle (20).

9. A tunnel maintenance and inspection platform according to claim 9, characterized in that, The clamping mechanism includes a clamping seat (21) on a fixed frame (17), a clamping arm (22) rotatably mounted on the clamping seat (21) and located on both sides of the track, and a transmission arm (23) slidably mounted inside the clamping arm (22), with one end hinged to the clamping arm (22) and the other end connected to the drive rod (18).

10. A method of using a tunnel maintenance and inspection platform according to any one of claims 1-9, characterized in that, Includes the following steps S1. Move the mobile cart to the desired position; S2. Install the support column into the column fixing seat, then install the connecting mechanism on the support column, install the support crossbar between two adjacent connecting mechanisms, and install one end of the reinforcing rod on the connecting mechanism and the other end on the reinforcing connecting seat; S3. When assembling the next layer of the scaffolding, install the support column inside the connecting mechanism, then install the connecting mechanism on the support column, install the support crossbar between two adjacent connecting mechanisms, install one end of the reinforcing rod on the upper connecting mechanism and the other end on the lower connecting mechanism, and then install the receiving plate between two adjacent receiving plates to complete the assembly of the scaffolding. S4. When it is necessary to be close to the tunnel sidewall, the extension plate is installed with a pin, and then the support diagonal rod is installed between the extension plate and / or the reinforcing connector to increase the space of the support plate; S6. After the mobile trolley stops moving, the maintenance personnel turn the rotating handle. Turning the handle drives the threaded rod to rotate, which in turn drives the drive rod to move. The drive rod drives the two clamping mechanisms to operate synchronously and clamp the track to prevent the mobile trolley from moving after it stops. S6. When inspecting a double-track tunnel, simply place two mobile trolleys on two separate tracks. The two mobile trolleys are connected by a support crossbar and a connecting mechanism to achieve synchronous movement of the two mobile trolleys.

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