Movable operation platform for aloft work in railway tunnel

Abstract

The utility model relates to a railway tunnel aerial work movable work platform which comprises a horizontally-arranged bearing platform and a crawling ladder fixedly arranged on the edge of one side of the bearing platform, the included angle between the plane where the crawling ladder is located and the bearing platform is an obtuse angle, and diagonal draw bars are fixedly arranged between the crawling ladder and the bearing platform; a plurality of directional brake trundles are arranged on the edge of the side, away from the crawling ladder, of the bearing platform, and the rotating planes of the directional brake trundles are all horizontally arranged; a plurality of bearing directional wheels are arranged on the edge of the lower side of the crawling ladder, and the rotating planes of the bearing directional wheels are all located on the plane where the crawling ladder is located; the bearing directional wheels are used for abutting against the groove wall of the side edge, away from the wall surface, of the ditch cable trough. The laying efficiency of the railway tunnel lining side wall cable can be improved.

Description

Technical Field

[0001] The present application relates to the field of aerial work platforms, and in particular to a movable aerial work platform for railway tunnels. Background Art

[0002] The railway tunnel lining side walls need to lay a large number of cables such as power, signal, and communication. Before laying the cables, fasteners need to be installed, and the lining side walls need to be repaired for block fall and wall seepage. Based on the above construction projects, laying pipelines requires manual continuous moving operations.

[0003] Since most of the cable laying and tunnel repair work is done at high altitude, the traditional construction of the tunnel lining side wall is done by using ladders or aerial work vehicles.

[0004] The operation space for wall construction with ladders is small, and construction workers need to grab cables or drill holes to install fasteners, which is difficult to operate. Climbing up and down is time-consuming and labor-intensive, and the work efficiency is low. In addition, the ladder needs to be re-set for each operation, which is cumbersome. The aerial work vehicle occupies a large space in the tunnel, which is easy to affect other construction in the tunnel; and after the track construction in the tunnel is completed, the aerial work vehicle is completely unusable. Utility Model Content

[0005] In order to improve the laying efficiency of cables on the lining side walls of railway tunnels, the present application provides a movable working platform for aerial work in railway tunnels.

[0006] The present application provides a mobile working platform for aerial work in railway tunnels, which adopts the following technical solutions:

[0007] A movable working platform for aerial work in a railway tunnel comprises a horizontally arranged bearing platform and a ladder fixedly arranged on one side edge of the bearing platform, wherein the angle between the plane where the ladder is located and the bearing platform is an obtuse angle, and an oblique tie bar is fixedly arranged between the ladder and the bearing platform; a plurality of directional brake casters are arranged on the side edge of the bearing platform away from the ladder, and the rotation planes of the plurality of directional brake casters are all arranged horizontally; a plurality of bearing and redirecting wheels are arranged on the lower side edge of the ladder, and the rotation planes of the plurality of bearing and redirecting wheels are all located on the plane where the ladder is located; and the plurality of bearing and redirecting wheels are used to abut against the groove wall at the side edge of a ditch cable trough away from the wall.

[0008] By adopting the above technical solution, when the side wall is continuously hanging cables, the stop switch of the directional brake caster is first turned off, and two construction workers lift the bearing platform and ladder onto the ditch cable trough and lean them against the tunnel lining side wall, so that several directional brake casters on the bearing platform lean against the wall, and several bearing directional casters on the ladder are in contact with the groove wall at the side edge of the ditch cable trough away from the wall, and the groove wall on the side edge of the ditch cable trough is used to hinder the ladder from moving away from the wall, so that the bearing platform and ladder are stably placed between the ditch cable trough and the tunnel lining side wall. According to the work content, the stop switch of the directional brake caster can be turned on for mobile continuous work, and the stop switch of the directional brake caster can be turned off at any time during fixed-point work. The above construction method is easy to use, flexible and simple to operate, and can effectively improve the laying efficiency of the lining side wall cables in the railway tunnel, saving manpower and having high safety. In addition, oblique tie bars are welded between the load-bearing platform and the ladder, forming a stable triangle between the three, which can improve the load-bearing stability of the load-bearing platform and thus enhance the safety of people on the working platform.

[0009] Optionally, the ladder is also provided with a stabilizing member, which includes a mounting frame fixed to an edge of a side of the ladder away from the bearing platform and a plurality of directional contact wheels arranged on the mounting frame, wherein the rotation planes of the plurality of directional contact wheels are all arranged horizontally and are lower than the directional contact wheels, and the plurality of directional contact wheels are used to contact the outer wall of a side of the ditch cable trough away from the tunnel wall.

[0010] By adopting the above technical solution, when the bearing and redirecting wheel contacts the groove wall at the side edge of the ditch cable trough away from the wall, the contact directional wheel contacts closely the outer wall of the side of the ditch cable trough away from the tunnel wall, and the reaction of force enables the bearing and redirecting wheel to always contact closely the groove wall at the side edge of the ditch cable trough away from the wall, so as to avoid the whole working platform from falling out of the groove and causing casualties during the walking process, thereby further improving the safety of people on the working platform.

[0011] Optionally, the mounting frame includes a plurality of mounting rods parallel to each other, a plurality of the interfering directional wheels are respectively arranged at one end of the plurality of mounting rods, a plurality of the mounting rods are arranged on a ladder, an adjusting member is arranged between the ladder and the mounting rod, and the adjusting member is used to adjust the horizontal distance between the mounting rod and the ladder.

[0012] By adopting the above technical solution, the adjusting part adjusts the horizontal distance between the mounting rod and the ladder, so as to adjust the horizontal distance between a plurality of interfering directional wheels and the bearing directional wheels, so as to adapt to the side walls of the ditch cable trough with different thicknesses, so that the interfering directional wheels can interfere with the outer walls of the ditch cable trough in different construction sites, thereby improving the practicality and applicability of the working platform.

[0013] Optionally, the mounting rod is an L-shaped rod structure, and the adjusting member includes an adjusting sleeve that is passed through and fixedly connected to the ladder and two adjusting bolts that are passed through and threadedly connected to the wall of the adjusting sleeve. A rod body on one side of the mounting rod is respectively passed through and slidably connected to both ends of the adjusting sleeve, and the two adjusting bolts both abut against the mounting rod.

[0014] By adopting the above technical solution, the mounting rod is slid relative to the adjusting sleeve, and then the two adjusting bolts are tightened to make it press against the mounting rod, so as to adjust and stably lock the horizontal distance between the mounting rod and the ladder, so that the directional contact wheel can stably and tightly contact the outer wall of the ditch cable trough.

[0015] Optionally, a mounting seat is fixedly connected to an edge of one side of the ladder away from the bearing platform, and the adjustment sleeve is passed through and fixedly connected to the mounting seat.

[0016] By adopting the above technical solution, through the fixed connection between the mounting seat and the adjusting sleeve, and then allowing the mounting rod to pass through the adjusting sleeve, a plurality of mounting rods and the interfering directional wheels can be stably fixedly connected to the ladder.

[0017] Optionally, the number of the mounting rods is set to two, and a plurality of horizontally arranged cross rods are fixedly arranged between the two mounting rods.

[0018] By adopting the above technical solution, multiple cross bars can not only improve the structural strength of the mounting frame, so that the directional wheels can more stably contact the outer wall of the ditch cable trough, but also serve as a stepping point to facilitate construction workers to climb up the ditch cable trough and then climb up the ladder to improve construction convenience.

[0019] Optionally, the supporting platform includes a horizontally arranged supporting plate and an enclosure arranged around the supporting plate, the ladder is fixedly arranged on one side edge of the supporting plate, and a plurality of directional brake casters are arranged on one side edge of the enclosure away from the ladder.

[0020] By adopting the above technical solution, the fence can provide safety protection for construction workers on the load-bearing plate to improve the safety of construction. The directional brake caster is set on the edge of the fence away from the ladder, and the construction workers can operate the stop switch of the directional brake caster without bending over, so as to improve the convenience of construction.

[0021] Optionally, the enclosure includes at least four guard frames arranged around the bearing plate, wherein the guard frame close to the climbing frame is provided with an entrance.

[0022] By adopting the above technical solution, an entrance is opened on the retaining frame close to the climbing frame, which is convenient for construction workers to enter the load-bearing plate from the ladder, and can also provide more comprehensive safety protection for the construction workers on the load-bearing plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. According to the content of the construction work, the stop switch of the directional brake caster can be turned on for mobile continuous operation, and the stop switch of the directional brake caster can be turned off at any time during fixed-point operation. The above construction method is easy to use, flexible and simple to operate, and can effectively improve the laying efficiency of the lining side wall cable in the railway tunnel, saving manpower and having high safety; oblique tie bars are welded between the load-bearing platform and the ladder, forming a stable triangle between the three, which can improve the load-bearing stability of the load-bearing platform, so as to improve the safety of the manned work platform;

[0025] 2. The directional contact wheel is in close contact with the outer wall of the ditch cable trough away from the tunnel wall, so that the directional contact wheel can always be in close contact with the groove wall at the side edge of the ditch cable trough away from the wall, so as to avoid the entire working platform from falling off the groove and causing casualties during the walking process, and further improve the safety of the working platform;

[0026] 3. The adjusting part adjusts the horizontal distance between the installation rod and the ladder, so that the directional wheel can contact the outer wall of the ditch cable trough in different construction sites, thereby improving the practicality and applicability of the working platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0028] Figure 2 It is an installation diagram of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the stabilizing member in the embodiment of the present application.

[0030] Figure numerals: 1. load-bearing platform; 11. load-bearing plate; 12. enclosure; 121. baffle frame; 122. vertical bar; 123. baffle bar; 124. entrance; 2. ladder; 21. mounting seat; 3. oblique tie bar; 4. directional brake caster; 5. bearing redirecting wheel; 6. stabilizing member; 61. mounting frame; 611. mounting bar; 613. cross bar; 62. contact directional wheel; 7. adjusting member; 71. adjusting sleeve; 711. clamping nut; 72. adjusting bolt; 8. tunnel lining side wall; 81. cable; 9. ditch cable trough. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a movable working platform for high-altitude operations in railway tunnels. Figure 1A movable work platform for aerial work in a railway tunnel includes a load-bearing platform 1 and a ladder 2. The load-bearing platform 1 includes a load-bearing plate 11 and a fence 12. The load-bearing plate 11 is a rectangular plate structure and is arranged horizontally. The fence 12 is fixedly connected to the outer edge of the load-bearing plate 11 and is arranged around the load-bearing plate 11. The ladder 2 is fixedly connected to one side edge of the load-bearing plate 11. The angle between the plane where the ladder 2 is located and the load-bearing plate 11 is an obtuse angle. In the embodiment of the present application, the angle between the plane where the ladder 2 is located and the load-bearing plate 11 is 65-70°.

[0033] Reference Figure 1 Two oblique tie bars 3 are fixedly arranged between the ladder 2 and the load-bearing platform 1. The two oblique tie bars 3 are parallel to each other, one end of the two oblique tie bars 3 is fixedly connected to the lower part of the ladder 2, and the other end of the two oblique tie bars 3 is fixedly connected to the edge of one side of the load-bearing plate 11 away from the ladder 2. A stable triangle is formed between the ladder 2, the load-bearing platform 1 and the oblique tie bars 3, which can improve the load-bearing stability of the load-bearing platform 1, so as to improve the safety of the manned work platform.

[0034] Reference Figure 1 and Figure 2 Two directional brake casters 4 are rotatably arranged on the side edge of the enclosure 12 away from the ladder 2, and the rotation planes of the two directional brake casters 4 are both horizontally arranged and located on the same horizontal plane. Two bearing and redirecting wheels 5 are arranged on the lower side edge of the ladder 2, and the rotation planes of the two bearing and redirecting wheels 5 are both located in the plane where the ladder 2 is located, and the two bearing and redirecting wheels 5 are used to abut against the groove wall at the side edge of the ditch cable trough 9 away from the wall.

[0035] When the side wall is continuously hung with cables, the stop switch of the directional brake caster 4 is first turned off, and two construction workers lift the carrying platform 1 and the ladder 2 onto the ditch cable trough 9 and lean them against the tunnel lining side wall 8, so that several directional brake casters 4 on the carrying platform 1 lean against the wall, and several bearing directional wheels 5 on the ladder 2 are in contact with the groove wall at the side edge of the ditch cable trough 9 away from the wall, and the groove wall at the side edge of the ditch cable trough 9 is used to hinder the ladder 2 from moving away from the wall, so that the carrying platform 1 and the ladder 2 are stably placed between the ditch cable trough 9 and the tunnel lining side wall 8. According to the work content, the stop switch of the directional brake caster 4 can be turned on for mobile continuous work, and the stop switch of the directional brake caster 4 can be turned off at any time for fixed-point work. The above-mentioned construction method is convenient to use, flexible and simple to operate, and can effectively improve the laying efficiency of the lining side wall cable in the railway tunnel, saving manpower and having high safety.

[0036] The fence 12 can provide safety protection for the construction workers on the load-bearing plate 11 to improve the safety of the construction. In addition, the directional brake casters 4 are all arranged on the edge of the fence 12 away from the ladder 2, and the construction workers can operate the stop switch of the directional brake casters 4 without bending over, so as to improve the convenience of construction.

[0037] Reference Figure 1 In order to improve the safety of the working platform, the ladder 2 is also provided with a stabilizing member 6, which includes a mounting frame 61 and two directional abutment wheels 62. The mounting frame 61 is fixedly arranged on the edge of the ladder 2 away from the load-bearing platform 1, and the two directional abutment wheels 62 are arranged on the mounting frame 61. The mounting frame 61 includes two mounting rods 611, both of which are L-shaped rod structures, and the two mounting rods 611 are parallel to each other, and the L-shaped openings of the two mounting rods 611 face the directional abutment wheels 5. The lower edge of the ladder 2 is fixedly connected with a mounting seat 21, and the two mounting rods 611 are arranged on the mounting seat 21, so as to stably fix the two mounting rods 611 to the ladder 2.

[0038] Reference Figure 1 and Figure 2 The two contact directional wheels 62 are respectively rotatably arranged at the other end of the two mounting rods 611, the rotation planes of the two contact directional wheels 62 are parallel to and located in the same horizontal plane, the two contact directional wheels 62 are lower than the height of the bearing redirecting wheel 5, and the two contact directional wheels 62 are used to contact the outer wall of the ditch cable trough 9 away from the tunnel wall.

[0039] When the bearing and redirecting wheel 5 contacts the groove wall at the side edge of the ditch cable trough 9 away from the wall, the contact directional wheel 62 contacts closely with the outer wall of the side of the ditch cable trough 9 away from the tunnel wall. Through the reaction of force, the bearing and redirecting wheel 5 can always contact closely with the groove wall at the side edge of the ditch cable trough 9 away from the wall, so as to avoid the whole working platform from being out of the groove during the walking process, causing the working platform to tip over and causing casualties, thereby further improving the safety of the manned working platform.

[0040] Reference Figure 1 and Figure 3 An adjusting member 7 is provided between the ladder 2 and the mounting rod 611. The adjusting member 7 includes an adjusting sleeve 71 and two adjusting bolts 72. The adjusting sleeve 71 is provided through the mounting seat 21. Two clamping nuts 711 are threadedly connected to the outer sleeve 71 of the adjusting sleeve 71. The mounting seat 21 is clamped between the two clamping nuts 711. The two adjusting bolts 72 are both provided through and threadedly connected to the wall of the adjusting sleeve 71. The two adjusting bolts 72 are respectively provided at the two ends of the adjusting sleeve 71, and the two adjusting bolts 72 are respectively in contact with the mounting rod 611.

[0041] The mounting rod 611 is slid relative to the adjustment sleeve 71, and then the two adjustment bolts 72 are tightened to respectively press against the mounting rod 611, so as to adjust and stably lock the horizontal distance between the mounting rod 611 and the mounting seat 21. By adjusting the horizontal distance between the mounting rod 611 and the mounting seat 21, the horizontal distance between the plurality of interfering directional wheels 62 and the bearing directional wheels 5 is adjusted to adapt to the side walls of the ditch cable trough 9 of different thicknesses, so that the interfering directional wheels 62 can interfere with the outer walls of the ditch cable trough 9 of different construction sites, thereby improving the practicality and applicability of the working platform.

[0042] Reference Figure 1 In order to facilitate the construction, the enclosure 12 includes four baffles 121, which are respectively fixedly connected to the four side edges of the bearing plate 11, and the four baffles 121 are vertically arranged on the bearing plate 11. The baffle 121 close to the ladder 2 includes two parallel vertical bars 122 and two baffles 123, and the two vertical bars 122 are fixedly connected to the bearing plate 11. The two baffles 123 are fixedly connected to the two vertical bars 122 at the same time and are located between the two vertical bars 122. The two baffles 123 are arranged horizontally and far away from each other. The space between the two baffles 123 is an entrance 124. The height of the baffle 123 located above is higher than the height of the baffle 121 close to the wall. An entrance 124 is provided on the baffle 121 close to the climbing frame, which is convenient for construction personnel to enter the bearing plate 11 from the ladder 2, and can also provide more comprehensive safety protection for the construction personnel on the bearing plate 11.

[0043] The implementation principle of a movable working platform for aerial work in a railway tunnel according to an embodiment of the present application is as follows: when the side wall is continuously hung with cables, the stop switch of the directional brake caster 4 is first turned off, and two construction workers lift the bearing platform 1 and the ladder 2 onto the ditch cable trough 9 and lean them against the tunnel lining side wall 8, so that several directional brake casters 4 on the bearing platform 1 lean against the wall, and several bearing directional wheels 5 on the ladder 2 contact the groove wall at the side edge of the ditch cable trough 9 away from the wall, and the groove wall on the side edge of the ditch cable trough 9 is used to hinder the ladder 2 from moving away from the wall, so that the bearing platform 1 and the ladder 2 are stably placed between the ditch cable trough 9 and the tunnel lining side wall 8.

[0044] According to the operation content, the stop switch of the directional brake caster 4 can be turned on for mobile continuous operation, and the stop switch of the directional brake caster 4 can be turned off at any time during fixed-point operation. The above construction method is convenient to use, flexible and simple to operate, and can effectively improve the laying efficiency of the lining side wall cable in the railway tunnel, save manpower and have high safety.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A movable working platform for aerial work in railway tunnels, characterized by: The invention comprises a horizontally arranged bearing platform (1) and a ladder (2) fixedly arranged on one side edge of the bearing platform (1), wherein the angle between the plane where the ladder (2) is located and the bearing platform (1) is an obtuse angle, and an oblique tie rod (3) is fixedly arranged between the ladder (2) and the bearing platform (1); a plurality of directional brake casters (4) are arranged on the side edge of the bearing platform (1) away from the ladder (2), and the rotation planes of the plurality of directional brake casters (4) are all arranged horizontally; a plurality of bearing and redirecting wheels (5) are arranged on the lower side edge of the ladder (2), and the rotation planes of the plurality of bearing and redirecting wheels (5) are all located on the plane where the ladder (2) is located; and the plurality of bearing and redirecting wheels (5) are used to abut against the groove wall at the side edge of a ditch cable trough (9) away from the wall.

2. A movable working platform for aerial work in railway tunnels according to claim 1, characterized in that: The ladder (2) is further provided with a stabilizing member (6), the stabilizing member (6) comprising a mounting frame (61) fixed to an edge of a side of the ladder (2) away from the bearing platform (1) and a plurality of directional contact wheels (62) arranged on the mounting frame (61), the rotation planes of the plurality of directional contact wheels (62) being arranged horizontally and lower than the directional contact wheels (5), and the plurality of directional contact wheels (62) being used to contact an outer wall of a side of the ditch cable trough (9) away from the tunnel wall.

3. A movable working platform for aerial work in railway tunnels according to claim 2, characterized in that: The mounting frame (61) comprises a plurality of mounting rods (611) parallel to each other, a plurality of the abutting directional wheels (62) are respectively arranged at one end of the plurality of mounting rods (611), a plurality of the mounting rods (611) are arranged on the ladder (2), and an adjusting member (7) is arranged between the ladder (2) and the mounting rods (611), and the adjusting member (7) is used to adjust the horizontal distance between the mounting rods (611) and the ladder (2).

4. The movable working platform for aerial work in railway tunnels according to claim 3 is characterized by: The mounting rod (611) is an L-shaped rod structure, the adjusting member (7) comprises an adjusting sleeve (71) passing through and fixedly connected to the ladder (2) and two adjusting bolts (72) passing through and threadedly connected to the sleeve wall of the adjusting sleeve (71), a rod body on one side of the mounting rod (611) passing through and slidably connected to two ends of the adjusting sleeve (71), and the two adjusting bolts (72) both abut against the mounting rod (611).

5. The movable working platform for aerial work in railway tunnels according to claim 4, characterized in that: A mounting seat (21) is fixedly connected to an edge of one side of the ladder (2) away from the bearing platform (1), and the adjustment sleeve (71) is passed through and fixedly connected to the mounting seat (21).

6. The movable working platform for aerial work in railway tunnels according to claim 3 is characterized by: The number of the installation rods (611) is set to two, and a plurality of horizontally arranged cross rods (613) are fixedly arranged between the two installation rods (611).

7. The movable working platform for aerial work in railway tunnels according to claim 1, characterized in that: The bearing platform (1) comprises a horizontally arranged bearing plate (11) and a fence (12) arranged around the bearing plate (11); the ladder (2) is fixedly arranged on one side edge of the bearing plate (11); and a plurality of directional brake casters (4) are arranged on one side edge of the fence (12) away from the ladder (2).

8. The movable working platform for aerial work in railway tunnels according to claim 7, characterized in that: The enclosure (12) comprises at least four retaining frames (121) arranged around the bearing platform (1), wherein the retaining frame (121) close to the ladder (2) is provided with an entrance opening (124).

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