Top climbing operation and maintenance operation safety device for rail transit three-layer operation platform

Abstract

The utility model discloses a rail transit three-layer work platform top climbing operation and maintenance work safety device. The device comprises a plurality of vertically arranged roof truss davits, the front sides of the roof truss davits are provided with C-shaped slideways with downward openings, a plurality of pulley assemblies are slidably arranged in the slideways, and safety belt hoisting hanging holes are formed in the extending parts of the assemblies; the C-shaped slide way and the roof truss davit are fixed through a connecting fastener, the connecting fastener comprises a mounting plate, a fixing plate, a first clamping groove and a first receding opening, and a reinforcing rib is arranged between the mounting plate and the fixing plate; auxiliary supporting fasteners are arranged on the C-shaped slideways between the adjacent roof truss davits, and each auxiliary supporting fastener comprises a second clamping groove, a second receding opening, an L-shaped mounting plate and a net side cross beam; end covers are additionally arranged at the two ends of the C-shaped sliding way and fixed through limiting bolts, and buffering rubber pads are arranged on the inner sides of the end covers. The device effectively improves the safety and convenience of operators, prevents falling, enhances the stability, prolongs the service life, and is suitable for the climbing operation and maintenance work of the rail transit three-layer working platform.

Description

Technical Field

[0001] This utility model relates to the field of rail transit maintenance technology, specifically a safety device for climbing and maintaining a three-level rail transit work platform. Background Technology

[0002] At the EMU maintenance base, there is a type of EMU maintenance platform called a three-level working platform. The ground level is mainly used for the maintenance of the bottom of the EMU; the second level platform is mainly to facilitate personnel to enter the interior of the EMU for maintenance; and the third level platform is mainly to facilitate personnel to climb to the top of the EMU for maintenance of the facilities on the top of the EMU.

[0003] For the train to operate normally, a certain gap must be maintained between the sides of the train and the three-tiered work platform. To facilitate workers' access to the top, a flap mechanism is installed between the train roof and the three-tiered work platform to bridge the gap. When workers need to access the top, the flap mechanism unfolds to facilitate access; when the train needs to run, the flap retracts vertically to allow the train to pass.

[0004] The top of the train is 4200mm above the ground. If personnel working on the top accidentally slip and fall, it could result in injury or death. Therefore, secondary safety measures must be implemented for personnel working on the top to ensure their personal safety.

[0005] For the safety of personnel working on the top of the train, safety belts must be worn. If the safety belt is only suspended in one position, it is not conducive to the personnel walking on the roof. Instead, the safety belt becomes a constraint on the personnel working on the top, which is not conducive to their normal operation. Based on this, we designed a safety device for the operation and maintenance of a three-level working platform for rail transit. Utility Model Content

[0006] To address the technical problems in the prior art, this utility model provides a magnetic suction device for a rail transit maintenance platform, which aims to facilitate the hanging of safety belts by personnel working on the top of the train; facilitate the wearing of safety belts by personnel working on the top of the train and walking on the top of the train; and ensure the personal safety of personnel working on the top.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A safety device for climbing and maintaining a three-level working platform in rail transit includes multiple vertically arranged roof truss columns. The front side of each of the multiple roof truss columns is provided with a downward-facing C-shaped slide rail. Multiple pulley assemblies are slidably installed in the C-shaped slide rail. The multiple pulley assemblies can extend from the lower opening of the C-shaped slide rail, and the extended part has a safety belt hoisting hole. The C-shaped slide rail and the multiple roof truss columns are fixedly connected by connecting fasteners.

[0009] Preferably, the connecting fastener includes a mounting plate fixedly installed on the front door of the roof truss column. A fixing plate is horizontally fixed at the lower end of the front side of the mounting plate corresponding to the top of the C-shaped slide. A first slot adapted to the outer periphery of the C-shaped track is fixedly provided on the lower side of the fixing plate. A first clearance opening is provided at the bottom of the first slot at the lower opening of the C-shaped slide.

[0010] Preferably, a reinforcing rib is provided between the mounting plate and the fixing plate, and the number of the reinforcing rib is one or two:

[0011] It is a single unit, located in the middle of the mounting plate and the fixing plate;

[0012] There are two of them, located at the left and right ends of the mounting plate and the fixing plate, forming a window for picking up and putting down the pulley assembly in the middle.

[0013] Preferably, the C-shaped track between adjacent roof truss columns is also provided with auxiliary support fasteners. The auxiliary support fasteners include a second slot that is adapted to the periphery of the C-shaped track. The bottom of the second slot has a second clearance opening at the lower end of the C-shaped track. An L-shaped mounting plate is fixedly provided on the top of the second slot. A mesh side beam is provided on the rear side of the L-shaped mounting plate to fix it.

[0014] Preferably, end caps are installed at both ends of the C-shaped track, and the end caps are fixed to both ends of the C-shaped track by limiting bolts.

[0015] Preferably, the end cap is further provided with a cushioning pad on the side facing the C-shaped track.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a safety device for climbing and maintaining a three-level working platform in rail transit, which improves the safety and convenience of operations, while also enhancing the stability and service life of the device. By placing the pulley assembly in the C-shaped track groove and using it in conjunction with the safety belt hook, the operator can always be in a safe and protected state when walking on the roof, effectively preventing accidental falls. The end caps, limit bolts, and rubber buffer blocks at the ends of the slide further prevent the pulley assembly from slipping out, ensuring operational safety. At the same time, the C-shaped slide expands the safe working range for operators, facilitating flexible movement and operation on the roof, while the pulley assembly retrieval window design improves the convenience for operators to retrieve and place the pulley assembly, thereby increasing operational efficiency.

[0018] In terms of device stability, the design of connecting fasteners and auxiliary support fasteners enhances the connection strength between the C-shaped slide and the hanging column. At the same time, by adding auxiliary supports on the side beam between the two hanging columns, the load-bearing capacity and stability of the slide are further improved, preventing deformation or displacement of the slide during operation. In addition, the buffer pads on the end caps can effectively reduce the collision and wear between the pulley assembly and the end caps, while the optimized design of the overall structure reduces maintenance costs caused by loosening or damage and extends the service life of the device. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of a safety device for climbing and maintaining a three-level working platform in rail transit according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting fastener structure of a safety device for climbing and maintaining a three-story rail transit operation platform according to this utility model;

[0021] Figure 3 This is a schematic diagram of the auxiliary support fastener structure of a safety device for climbing and maintaining a three-story rail transit operation platform according to the present invention;

[0022] Figure 4 This is a schematic diagram of the end cap structure of a safety device for climbing and maintaining a three-level working platform in rail transit according to the present invention;

[0023] Figure 5 This is a schematic diagram of the pulley assembly structure of a safety device for climbing and maintaining a three-level working platform in rail transit according to the present invention.

[0024] In the diagram: 1. Roof truss hanging column; 2. C-shaped slide rail; 3. Pulley assembly; 4. Safety belt hoisting hole; 5. Connecting fastener; 51. Mounting plate; 52. Fixing plate; 53. First slot; 54. First clearance opening; 55. Reinforcing rib; 6. Auxiliary support fastener; 61. Second slot; 62. Second clearance opening; 63. L-shaped mounting plate; 64. Mesh side beam; 7. End cap; 8. Limiting bolt; 9. Buffer pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5This application proposes a safety device for climbing and maintaining a three-level working platform in rail transit, including multiple roof truss columns 1 (the specific number can be determined according to the actual situation). The multiple roof truss columns 1 are arranged vertically and in a straight line to support the entire device. A C-shaped slide 2 with an opening facing downward is provided on the front side of the roof truss column 1. Multiple pulley assemblies 3 are slidably installed in the C-shaped slide 2. The pulley assembly 3 can extend from the lower opening of the C-shaped slide 2, and the extended part has a safety belt hoisting hole 4 for connecting the safety belt of the operator. The C-shaped slide 2 and the multiple roof truss columns 1 are fixedly connected by connecting fasteners 5 to ensure the stability and safety of the slide.

[0027] See Figure 1-2 Furthermore, the connecting fastener 5 is a key component for achieving a fixed connection between the C-shaped slide rail 2 and the roof truss column 1. The connecting fastener 5 includes a mounting plate 51 fixedly installed on the front side of the roof truss column 1. A fixing plate 52 is horizontally fixed at the lower end of the front side of the mounting plate 51 corresponding to the top of the C-shaped slide rail 2. A first slot 53 adapted to the outer periphery of the C-shaped slide rail 2 is fixedly installed on the lower side of the fixing plate 52. A first clearance opening 54 is opened at the bottom of the first slot 53 corresponding to the lower opening of the C-shaped slide rail 2. This design allows the C-shaped slide rail 2 to be firmly fixed on the roof truss column 1. At the same time, the first clearance opening 54 provides space for the pulley assembly 3 to enter and exit without affecting the sliding of the pulley assembly 3.

[0028] To further enhance the stability of the connecting fastener 5, a reinforcing rib 55 is provided between the mounting plate 51 and the fixing plate 52. The number of reinforcing ribs 55 can be one or two. If there is one, it is located in the middle of the mounting plate 51 and the fixing plate 52. If there are two, they are located at the left and right ends of the mounting plate 51 and the fixing plate 52, so that the middle part forms a window for picking up and putting down the pulley assembly 3. In actual use, the window can be arranged in the appropriate position and in the appropriate number according to the actual situation. This design not only improves the strength of the connecting fastener 5, but also provides convenience for operators to pick up and put down the pulley assembly 3, thereby improving work efficiency.

[0029] See Figure 1 , 3To further improve the stability of the device, auxiliary support fasteners 6 are also provided on the C-shaped slide 2 between adjacent roof truss columns 1. The auxiliary support fasteners 6 include a second slot 61 that is adapted to the outer periphery of the C-shaped slide 2. The bottom of the second slot 61 is provided with a second clearance opening 62 corresponding to the lower opening of the C-shaped slide 2. An L-shaped mounting plate 63 is fixedly provided on the top of the second slot 61. A mesh side beam 64 is provided on the rear side of the L-shaped mounting plate 63 to fix it (the mesh side beam 64 here can also be a nearby building beam, and the setting of the auxiliary support fasteners 6 can be adapted to the position of the building beam or the mesh side beam 64 so that it can play a supporting role for the C-shaped slide 2). Through the design of the auxiliary support fasteners 6, the load-bearing capacity and stability of the C-shaped slide 2 are further enhanced, preventing the slide from deforming or displacing during operation.

[0030] See Figure 4 To prevent the pulley assembly 3 from sliding out of the end of the C-shaped slide 2, end caps 7 are installed at both ends of the C-shaped slide 2. The end caps 7 are fixed to both ends of the C-shaped slide 2 by limiting bolts 8 to ensure the firmness of the end caps 7. A buffer pad 9 is also provided on the side of the end cap 7 facing the C-shaped slide 2. The function of the buffer pad 9 is to reduce the collision and wear between the pulley assembly 3 and the end cap 7 and extend the service life of the device.

[0031] As described above, the safety device for maintenance operations on a three-story rail transit platform can effectively improve the safety and convenience of workers walking on the roof. The pulley assembly 3, placed within the C-shaped slide 2 and used in conjunction with the safety belt hook 4, ensures workers are always in a safe and protected state while walking on the roof, effectively preventing accidental falls. The end cap 7, limiting bolt 8, and buffer pad 9 at the end of the slide further prevent the pulley assembly 3 from slipping out, ensuring operational safety. The C-shaped slide 2 expands the safe working range for workers, facilitating flexible movement and operation on the roof. The pulley assembly 3's access window design improves the convenience of accessing and removing the pulley assembly 3, increasing operational efficiency. Regarding device stability, the design of the connecting fastener 5 and auxiliary support fastener 6 enhances the connection strength between the C-shaped slide 2 and the hanging column 1. The optimized overall structure reduces maintenance costs due to loosening or damage, extending the device's service life. This safety device has a reasonable structure and strong practicality, making it particularly suitable for maintenance operations on a three-story rail transit platform.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety device for climbing and maintaining a three-level working platform in rail transit, characterized in that: It includes multiple vertical and lined roof truss columns (1), and the front side of the multiple roof truss columns (1) is provided with a downward-facing C-shaped slide rail (2). Multiple pulley assemblies (3) are slidably arranged in the C-shaped slide rail (2). The multiple pulley assemblies (3) can extend from the lower opening of the C-shaped slide rail (2), and the extended part is provided with a safety belt hoisting hole (4). The C-shaped slide rail (2) and the multiple roof truss columns (1) are fixedly connected by connecting fasteners (5).

2. The safety device for climbing and maintaining a three-level rail transit work platform according to claim 1, characterized in that, The connecting fastener (5) includes a mounting plate (51) fixedly installed on the front door of the roof truss column (1). A fixing plate (52) is horizontally fixed at the lower end of the front side of the mounting plate (51) corresponding to the top of the C-shaped slide (2). A first slot (53) adapted to the periphery of the C-shaped slide (2) is fixedly provided on the lower side of the fixing plate (52). A first clearance opening (54) is provided at the bottom of the first slot (53) at the lower opening of the C-shaped slide (2).

3. The safety device for climbing and maintaining a three-level rail transit work platform according to claim 2, characterized in that, A reinforcing rib (55) is provided between the mounting plate (51) and the fixing plate (52), and the number of the reinforcing rib (55) is one or two: It is one, located in the middle of the mounting plate (51) and the fixing plate (52); There are two, located at the left and right ends of the mounting plate (51) and the fixing plate (52), forming a pick-up and drop window for the pulley assembly (3) in the middle.

4. The safety device for climbing and maintaining a three-level rail transit work platform according to claim 1, characterized in that, An auxiliary support fastener (6) is also provided on the C-shaped slide (2) between adjacent roof truss hanging columns (1). The auxiliary support fastener (6) includes a second slot (61) that is adapted to the periphery of the C-shaped slide (2). The bottom of the second slot (61) is provided with a second clearance opening (62) at the lower opening of the C-shaped slide (2). An L-shaped mounting plate (63) is fixedly provided on the top of the second slot (61). A mesh side beam (64) is provided on the rear side of the L-shaped mounting plate (63) to fix it.

5. The safety device for climbing and maintaining a three-level rail transit operation platform according to claim 1, characterized in that, The C-shaped slide (2) is equipped with end caps (7) at both ends, and the end caps (7) are fixed to both ends of the C-shaped slide (2) by limiting bolts (8).

6. The safety device for climbing and maintaining a three-level rail transit work platform according to claim 5, characterized in that, The end cap (7) is also provided with a buffer pad (9) on the side facing the C-shaped slide (2).

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