Tunnel maintenance platform

Abstract

The utility model discloses a tunnel maintenance platform, which belongs to the technical field of tunnel construction and comprises a moving trolley, a rotating platform, a lifting platform and a telescopic platform, a base of the rotating platform is fixed on the moving trolley, the lifting platform is positioned at the top of the rotating platform, the telescopic platform is positioned at the top of the lifting platform, and the telescopic platform is positioned at the bottom of the lifting platform. The telescopic platform comprises a first U-shaped frame, a second U-shaped frame and a middle plate, the first U-shaped frame, the second U-shaped frame and the middle plate are sequentially connected in a sliding mode, a first tensioning assembly is arranged between the first U-shaped frame and the second U-shaped frame, and a second tensioning assembly is arranged between the first U-shaped frame and the middle plate. The side wall of the tunnel can be effectively overhauled, the problem that the side wall of the tunnel cannot be constructed when the moving trolley is parked far away is solved, meanwhile, the structure is simple, and the stability of the telescopic platform can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, and in particular relates to a tunnel maintenance platform. Background Technology

[0002] The tunnel maintenance platform is mainly used for repairing the internal surface of the tunnel; inspecting and maintaining equipment such as air ducts and electrical appliances; and reinforcing the arch lining.

[0003] However, existing maintenance platforms are usually combined with vehicles, which drive the maintenance platform into the tunnel and carry out operations along the tunnel. For safety reasons, the vehicle cannot be close to the tunnel, so when the workers use the maintenance platform, they cannot get close to one side of the tunnel. Often, the workers have to lean out to work, which can easily lead to safety hazards and is also inconvenient for personnel to work.

[0004] Existing maintenance platforms using robotic arms have limited maintenance efficiency due to their complex structure, which makes them inconvenient to operate and move quickly. At the same time, the complex robotic arm structure is also prone to failure, which is not conducive to long-term use.

[0005] Therefore, a maintenance platform is needed that is simple in structure and easy to extend for operation. Utility Model Content

[0006] The purpose of this invention is to provide a tunnel maintenance platform to solve the problems existing in the background art.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A tunnel maintenance platform includes a mobile trolley, a rotating platform, a lifting platform, and a telescopic platform. The base of the rotating platform is fixed to the mobile trolley, the lifting platform is located on top of the rotating platform, and the telescopic platform is located on top of the lifting platform.

[0009] The telescopic platform includes a first U-shaped frame, a second U-shaped frame, and a middle plate. The first U-shaped frame, the second U-shaped frame, and the middle plate are slidably connected in sequence. A first tensioning component is provided between the first U-shaped frame and the second U-shaped frame, and a second tensioning component is provided between the first U-shaped frame and the middle plate.

[0010] Furthermore, the bottom of the first U-shaped frame is fixed to the top plate of the lifting platform, the inner walls of both sides of the first U-shaped frame are provided with first rollers, the inner and outer sides of the second U-shaped frame are provided with sliding grooves, the outer side of the second U-shaped frame is slidably connected to the inner side of the first U-shaped frame through the sliding grooves and the first rollers, the outer walls of both sides of the middle plate are provided with second rollers, the outer side of the middle plate is slidably connected to the inner side of the second U-shaped frame through the sliding grooves and the second rollers.

[0011] Furthermore, a first telescopic cylinder is provided between the first U-shaped frame and the second U-shaped frame. The cylinder seat of the first telescopic cylinder is fixed to the first U-shaped frame, and one end of the piston rod of the first telescopic cylinder is fixed to the second U-shaped frame.

[0012] A second telescopic cylinder is provided between the second U-shaped frame and the intermediate plate. The cylinder seat of the second telescopic cylinder is fixed to the second U-shaped frame, and one end of the piston rod of the second telescopic cylinder is fixed to the intermediate plate. The first U-shaped frame is provided with a through hole for the second telescopic cylinder to pass through at the position corresponding to the position of the second telescopic cylinder.

[0013] Furthermore, a U-shaped fence is provided outside the first U-shaped frame, and the first tensioning assembly includes a first winch, a first wire rope and a first arc tube. The first winch is fixed to one side of the U-shaped fence, and two first arc tubes are symmetrically arranged below the second U-shaped frame. One end of the first wire rope is connected to the first winch, and the first wire rope passes through two sets of first arc tubes and is fixed to the side of the U-shaped fence away from the first winch.

[0014] The second tensioning assembly includes a second winch, a second wire rope, and a second arc-shaped tube. The second winch is fixed to one side of the U-shaped fence, and two second arc-shaped tubes are symmetrically arranged above the middle plate. One end of the second wire rope is connected to the second winch, and the second wire rope passes through two sets of second arc-shaped tubes and is fixed to the side of the U-shaped fence away from the second winch.

[0015] Furthermore, the first winch and the second winch are located on both sides of the U-shaped fence, and the first winch and the second winch are arranged vertically.

[0016] Furthermore, the first arc-shaped tube is located at the front end of the extended side of the second U-shaped frame, and the second arc-shaped tube is located at the front end of the extended side of the middle plate.

[0017] Furthermore, telescopic fences are provided on both sides of the second U-shaped frame and the middle plate.

[0018] The beneficial effects of this utility model are:

[0019] The telescopic platform can be raised by a lifting platform to inspect the tunnel roof, while a rotating platform allows for angle adjustments to both the lifting and telescopic platforms, further expanding the inspection range. Simultaneously, the telescopic platform enables effective inspection of the tunnel sidewalls, avoiding the problem of being unable to perform sidewall work when the mobile trolley is parked too far away.

[0020] The stability of the telescopic platform can be improved by tensioning the extended portion using the first and second tensioning components. Attached Figure Description

[0021] Figure 1 This is a side view of a tunnel maintenance platform according to the present invention;

[0022] Figure 2 This is a top view of the lifting platform in this utility model;

[0023] In the diagram, 1-moving trolley, 2-rotating platform, 3-lifting platform, 4-telescopic platform, 41-first U-shaped frame, 42-second U-shaped frame, 43-intermediate plate, 44-first roller, 45-second roller, 46-first telescopic cylinder, 47-second telescopic cylinder, 51-first winch, 52-first wire rope, 53-first arc-shaped pipe, 61-second winch, 62-second wire rope, 63-second arc-shaped pipe, 7-U-shaped fence, 8-telescopic fence. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] See Figures 1-2 This utility model provides a technical solution:

[0026] like Figures 1-2 As shown, a tunnel maintenance platform includes a mobile trolley 1, a rotating platform 2, a lifting platform 3, and a telescopic platform 4. The mobile trolley 1 can be hooked to the rear of an existing vehicle, eliminating the need for an additional drive mechanism, thus saving space and expanding its applicability.

[0027] The base of the rotating platform 2 is fixed on the mobile trolley 1. The telescopic platform 4 is located on top of the lifting platform 3. The lifting platform 3 is located on top of the rotating platform 2. The rotating platform 2 can drive the lifting platform 3 and the telescopic platform 4 above the lifting platform 3 to rotate. The angle can be adjusted by the rotating platform 2.

[0028] The telescopic platform 4 includes a first U-shaped frame 41, a second U-shaped frame 42, and a middle plate 43. The first U-shaped frame 41, the second U-shaped frame 42, and the middle plate 43 are slidably connected in sequence. A first tensioning component is provided between the first U-shaped frame 41 and the second U-shaped frame 42, and a second tensioning component is provided between the first U-shaped frame 41 and the middle plate 43. The platform can extend a certain distance through the first U-shaped frame 41, the second U-shaped frame 42, and the middle plate 43, enabling operations at a relatively distant location. At the same time, the first and second tensioning components ensure the stability and safety of the extension process.

[0029] After the mobile trolley 1 stops, the workers are positioned inside the telescopic platform 4. The telescopic platform 4 can be raised via the lifting platform 3 to inspect the tunnel roof. Meanwhile, the rotating platform 2 adjusts the angle of the lifting platform 3 and the telescopic platform 4, further expanding the inspection range. Simultaneously, the telescopic platform 4 allows for effective inspection of the tunnel sidewalls, preventing the inability to perform sidewall work when the mobile trolley 1 is stationed too far away.

[0030] The scope of use of the maintenance platform can be expanded and construction efficiency improved by using a mobile trolley 1, a rotating platform 2, a lifting platform 3, and a telescopic platform 4.

[0031] Specifically, the bottom of the first U-shaped frame 41 is fixed to the top plate of the lifting platform 3. The inner walls of both sides of the first U-shaped frame 41 are provided with first rollers 44. The inner and outer sides of the second U-shaped frame 42 are provided with sliding grooves. The outer side of the second U-shaped frame 42 is slidably connected to the inner side of the first U-shaped frame 41 through the sliding grooves and the first rollers 44. The outer walls of both sides of the middle plate 43 are provided with second rollers 45. The outer side of the middle plate 43 is slidably connected to the inner side of the second U-shaped frame 42 through the sliding grooves and the second rollers 45.

[0032] When the lifting platform 3 is not extended, from the outside to the inside are the first U-shaped frame 41, the second U-shaped frame 42 and the middle plate 43. The top plate of the lifting platform 3 is located below the first U-shaped frame 41.

[0033] Furthermore, a first telescopic cylinder 46 is provided between the first U-shaped frame 41 and the second U-shaped frame 42. The cylinder seat of the first telescopic cylinder 46 is fixed to the first U-shaped frame 41, and one end of the piston rod of the first telescopic cylinder 46 is fixed to the second U-shaped frame 42.

[0034] A second telescopic cylinder 47 is provided between the second U-shaped frame 42 and the intermediate plate 43. The cylinder seat of the second telescopic cylinder 47 is fixed to the second U-shaped frame 42, and one end of the piston rod of the second telescopic cylinder 47 is fixed to the intermediate plate 43. The first U-shaped frame 41 is provided with a through hole for the second telescopic cylinder 47 to pass through at the position corresponding to the position of the second telescopic cylinder 47.

[0035] With the above technical solution, when the telescopic platform 4 extends, the second telescopic cylinder 47 remains stationary. At this time, the intermediate plate 43 and the second U-shaped frame 42 are fixed together. The first telescopic cylinder 46 pushes the first U-shaped frame 41 away from the first U-shaped frame 41. At this time, the first U-shaped frame 41 and the intermediate plate 43 extend together toward the opening side of the first U-shaped frame 41. At this time, the operator can work on the intermediate plate 43.

[0036] When the telescopic platform 4 needs to extend further, the first telescopic cylinder 46 is in its maximum extension state, and the second telescopic cylinder 47 is activated to push the middle plate 43 away from the second U-shaped frame 42. At this time, the operator can work on the middle plate 43.

[0037] Furthermore, a U-shaped fence 7 is provided outside the first U-shaped frame 41. The first tensioning assembly includes a first winch 51, a first wire rope 52, and a first arc-shaped tube 53. The first winch 51 is fixed to one side of the U-shaped fence 7. Two first arc-shaped tubes 53 are symmetrically arranged below the second U-shaped frame 42. One end of the first wire rope 52 is connected to the first winch 51. The first wire rope 52 passes through the two sets of first arc-shaped tubes 53 and is fixed to the side of the U-shaped fence 7 away from the first winch 51.

[0038] The second tensioning assembly includes a second winch 61, a second wire rope 62, and a second arc-shaped tube 63. The second winch 61 is fixed to one side of the U-shaped fence 7. The two second arc-shaped tubes 63 are symmetrically arranged above the intermediate plate 43. One end of the second wire rope 62 is connected to the second winch 61. The second wire rope 62 passes through the two sets of second arc-shaped tubes 63 and is fixed to the side of the U-shaped fence 7 away from the second winch 61.

[0039] The first winch 51 and the second winch 61 are located on both sides of the U-shaped fence 7, and the first winch 51 and the second winch 61 are arranged vertically.

[0040] With the above technical solution, since the telescopic platform 4 needs to extend a certain distance, the first tensioning component and the second tensioning component are used to tension the extended part to ensure its stability.

[0041] When the second U-shaped frame 42 is pushed out by the first telescopic cylinder 46, the first winch 51 simultaneously loosens the first wire rope 52. Since the first wire rope 52 passes through the first arc-shaped tube 53, and the first arc-shaped tube 53 is fixed to the second U-shaped frame 42, the second U-shaped frame 42 can extend. After the second U-shaped frame 42 extends a certain distance, the winch stops loosening the first wire rope 52 and tightens it. At this time, the second U-shaped frame 42 is tightened and fixed to the U-shaped fence 7 through the first wire rope 52, improving the connection strength of the second U-shaped frame 42. It can be seen that when the first U-shaped frame 41 drives the intermediate plate 43 to extend together, the second winch 61 also simultaneously loosens the second wire rope 62.

[0042] When the second U-shaped frame 42 extends to its maximum distance, it is then tightened and fixed by the first wire rope 52 and the first winch 51. As the middle plate 43 continues to extend, the second winch 61 continues to loosen the second wire rope 62 until the middle plate 43 extends to its maximum distance. At this point, the second winch 61 stops and tightens the second wire rope 62, fixing the middle plate 43 to the U-shaped fence 7.

[0043] Furthermore, the first arc-shaped tube 53 is located at the front end of the extended side of the second U-shaped frame 42, and the second arc-shaped tube 63 is located at the front end of the extended side of the middle plate 43.

[0044] Through the above technical solution, the first arc-shaped tube 53 and the second arc-shaped tube 63 allow the corresponding first wire rope 52 and second wire rope 62 to be wound into a U-shape, respectively connecting and tightening the two sides of the second U-shaped frame 42 and the middle plate 43, thereby improving the stability of the tension. At the same time, the arc-shaped structure facilitates the extension and retraction of the wire ropes, reducing friction.

[0045] Furthermore, telescopic fences 8 are provided on both sides of the second U-shaped frame 42 and the middle plate 43.

[0046] With the above technical solution, when the second U-shaped frame 42 and the middle plate 43 extend, the telescopic fence 8 extends and retracts accordingly, which can protect the construction personnel located on the telescopic platform 4.

[0047] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A tunnel maintenance platform, characterized by: The system includes a mobile trolley (1), a rotating platform (2), a lifting platform (3), and a telescopic platform (4). The base of the rotating platform (2) is fixed to the mobile trolley (1). The lifting platform (3) is located on top of the rotating platform (2), and the telescopic platform (4) is located on top of the lifting platform (3). The telescopic platform (4) includes a first U-shaped frame (41), a second U-shaped frame (42) and a middle plate (43). The first U-shaped frame (41), the second U-shaped frame (42) and the middle plate (43) are slidably connected in sequence. A first tensioning component is provided between the first U-shaped frame (41) and the second U-shaped frame (42), and a second tensioning component is provided between the first U-shaped frame (41) and the middle plate (43).

2. The tunnel inspection platform of claim 1, wherein: The bottom of the first U-shaped frame (41) is fixed to the top plate of the lifting platform (3). The inner walls of the two sides of the first U-shaped frame (41) are provided with first rollers (44). The inner and outer sides of the second U-shaped frame (42) are provided with sliding grooves. The outer side of the second U-shaped frame (42) is slidably connected to the inner side of the first U-shaped frame (41) through the sliding grooves and the first rollers (44). The outer walls of the two sides of the middle plate (43) are provided with second rollers (45). The outer side of the middle plate (43) is slidably connected to the inner side of the second U-shaped frame (42) through the sliding grooves and the second rollers (45).

3. The tunnel inspection platform of claim 1, wherein: A first telescopic cylinder (46) is provided between the first U-shaped frame (41) and the second U-shaped frame (42). The cylinder seat of the first telescopic cylinder (46) is fixed to the first U-shaped frame (41), and one end of the piston rod of the first telescopic cylinder (46) is fixed to the second U-shaped frame (42). A second telescopic cylinder (47) is provided between the second U-shaped frame (42) and the intermediate plate (43). The cylinder seat of the second telescopic cylinder (47) is fixed to the second U-shaped frame (42), and one end of the piston rod of the second telescopic cylinder (47) is fixed to the intermediate plate (43). The first U-shaped frame (41) is provided with a through hole for the second telescopic cylinder (47) to pass through at the position corresponding to the position of the second telescopic cylinder (47).

4. The tunnel inspection platform of claim 1, wherein: The first U-shaped frame (41) is provided with a U-shaped fence (7). The first tensioning assembly includes a first winch (51), a first wire rope (52) and a first arc tube (53). The first winch (51) is fixed on one side of the U-shaped fence (7). Two first arc tubes (53) are symmetrically arranged below the second U-shaped frame (42). One end of the first wire rope (52) is connected to the first winch (51). The first wire rope (52) passes through the two sets of first arc tubes (53) and is fixed to the side of the U-shaped fence (7) away from the first winch (51). The second tensioning assembly includes a second winch (61), a second wire rope (62), and a second arc-shaped tube (63). The second winch (61) is fixed to one side of the U-shaped fence (7). The two second arc-shaped tubes (63) are symmetrically arranged above the middle plate (43). One end of the second wire rope (62) is connected to the second winch (61). The second wire rope (62) passes through the two sets of second arc-shaped tubes (63) and is fixed to the side of the U-shaped fence (7) away from the second winch (61).

5. The tunnel inspection platform of claim 4, wherein: The first winch (51) and the second winch (61) are located on both sides of the U-shaped fence (7), and the first winch (51) and the second winch (61) are arranged vertically.

6. The tunnel maintenance platform according to claim 4, characterized in that: The first arc-shaped tube (53) is located at the front end of the extended side of the second U-shaped frame (42), and the second arc-shaped tube (63) is located at the front end of the extended side of the middle plate (43).

7. The tunnel inspection platform of claim 4, wherein: Telescopic fences (8) are provided on both sides of the second U-shaped frame (42) and the middle plate (43).

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