A platform extension device and a lifting platform for rail vehicles

Abstract

This utility model discloses a platform extension device and a lifting platform for rail vehicles, applicable to the field of rail vehicle maintenance equipment. The platform extension device includes a front extension pedal and first and / or second side extension pedals located on both sides of the front extension pedal. The front extension pedal, first side extension pedal, and second side extension pedal are detachably connected to the platform body, and the front extension pedal, first side extension pedal, and second side extension pedal form a contour-following clearance space to adapt to the shape of the front window of the rail vehicle. The platform extension device provided by this utility model can effectively improve the safety and efficiency of front window glass construction for rail vehicles.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle maintenance equipment, and in particular to a platform extension device and a lifting platform for rail vehicles. Background Technology

[0002] The front windows of rail vehicles, such as intercity EMUs, are typically 2534.4 mm long. The glass is installed at a near-vertical 67.5° angle along the window frame, and at a considerable height. Due to the unique shape of the front window, there is a large gap between it and the existing construction platform, posing a risk of personnel falling. After the glass is placed in the window frame, sealing it with sealant around the perimeter is extremely inconvenient for construction workers. Furthermore, the large window frame, high installation position, and large gap between the glass and the existing work platform also present challenges such as inconvenience during construction and limitations on quality inspection.

[0003] In related technologies, to facilitate construction on the vehicle's windshield, wooden planks are often laid across the edge of the existing work platform. However, this results in gaps between adjacent planks, leading to low support strength. Furthermore, workers are forced to lean while working on the planks, making them prone to slippage and posing significant safety risks. Another approach involves using a self-propelled electric lifting platform; however, the windshield's unique structure necessitates repeated adjustments to the platform's position, resulting in low construction efficiency.

[0004] Therefore, how to improve the ease of construction of the front windshield of rail vehicles and reduce safety hazards is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a platform extension device and a lifting platform for rail vehicles, which can improve the safety and efficiency of construction of the front window glass of rail vehicles.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A platform extension device includes a front extension pedal and a first side extension pedal and / or a second side extension pedal located on both sides of the front extension pedal. The front extension pedal, the first side extension pedal and the second side extension pedal are detachably connected to the platform body, and the front extension pedal, the first side extension pedal and the second side extension pedal surround to form a contour-following clearance space, which is adapted to the shape of the front window of a rail vehicle.

[0008] On the other hand, the front extension pedal has an arc-shaped extension on the side away from the platform body. The arc-shaped extension is located close to the first side extension pedal or the second side extension pedal, and there is a gap between the arc-shaped extension and the adjacent first side extension pedal or the second side extension pedal.

[0009] On the other hand, the first side extension pedal and / or the second side extension pedal have a tapered structure from the side closest to the front extension pedal to the other side.

[0010] On the other hand, the upper surface of the front extended pedal, the first side extended pedal and / or the second side extended pedal is provided with an anti-slip part, and the lower surface is provided with reinforcing ribs.

[0011] On the other hand, the side of the front extended pedal facing away from the platform body and the periphery of the first side extended pedal and / or the second side extended pedal are provided with flexible protective components; and / or, the flexible protective components are provided with warning signs.

[0012] On the other hand, an anti-tipping extension bracket is provided on the side of the first side extension pedal and the second side extension pedal that are opposite to each other. The anti-tipping extension bracket is used to fix it on the fixed construction platform.

[0013] On the other hand, it also includes several guardrails and several chains. The guardrails are located on the outside of the first side extension pedal and / or the second side extension pedal and extend longitudinally. The chains extend laterally and are detachably connected between two adjacent guardrails.

[0014] And / or, the upper surfaces of the first side extension pedal and the second side extension pedal on opposite sides are provided with a plurality of mounting holes, and the guardrail is detachably connected to one of the mounting holes.

[0015] On the other hand, the front extended pedal, the first side extended pedal and / or the second side extended pedal are provided with a connecting pivot frame on the side near the platform body, and the connecting pivot frame is used to cooperate with the hook structure mounting seat on the platform body.

[0016] On the other hand, the connecting shaft frame includes a first shaft support plate, a second shaft support plate, and a shaft body. The shaft body is located between the first shaft support plate and the second shaft support plate, and at least one of the first shaft support plate and the second shaft support plate has a snap-fit ​​boss at its bottom. When the connecting shaft frame is connected to the hook structure mounting base, the snap-fit ​​boss abuts against the side wall of the platform body.

[0017] This utility model also provides a lifting platform for rail vehicles, including a platform body and a platform extension device as described in any one of the above.

[0018] The platform extension device provided by this utility model includes a front extension pedal and a first side extension pedal and / or a second side extension pedal located on both sides of the front extension pedal. The front extension pedal, the first side extension pedal, and the second side extension pedal are detachably connected to the platform body, and the front extension pedal, the first side extension pedal, and the second side extension pedal form a contour-following clearance space, which is adapted to the shape of the front window of the rail vehicle. The platform extension device provided by this utility model achieves the extension effect of the platform body by setting the front extension pedal and the first side extension pedal and / or the second side extension pedal. Furthermore, by setting the contour-following clearance space and adapting it to the shape of the front window of the rail vehicle, the working platform formed by the front extension pedal and the first side extension pedal and / or the second side extension pedal can better match the shape of the front window of the rail vehicle, improving the safety and efficiency of front window glass construction.

[0019] The rail vehicle lifting platform provided by this utility model is equipped with the aforementioned platform extension device. Since the platform extension device has the aforementioned technical effects, the rail vehicle lifting platform equipped with the platform extension device should also have the corresponding technical effects. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of the platform extension device and the platform body provided by this utility model;

[0022] Figure 2 A partial structural schematic diagram of the platform extension device provided by this utility model;

[0023] Figure 3 A partial structural schematic diagram of the platform extension device provided by this utility model;

[0024] Figure 4 A top view of the platform extension device and the platform body provided by this utility model;

[0025] Figure 5This is a schematic diagram of the structure of the connecting shaft frame in the platform extension device provided by this utility model.

[0026] Figure 6 This is a schematic diagram of the hook structure mounting base of the platform body in the lifting platform for rail vehicles provided by this utility model.

[0027] Figure label:

[0028] 100 - Platform extension device; 110 - Front extension pedal; 111 - Arc-shaped extension; 112 - Gap; 120 - First side extension pedal; 121 - Anti-tipping extension bracket; 122 - Mounting hole; 130 - Second side extension pedal; 140 - Contour-following clearance space; 150 - Guardrail; 160 - Chain; 170 - Connecting shaft frame; 171 - First shaft support plate; 172 - Second shaft support plate; 173 - Shaft body; 174 - Snap-fit ​​boss; 200 - Platform body; 210 - Hook structure mounting base; 211 - Side wall. Detailed Implementation

[0029] The core of this utility model is to provide a platform extension device and a lifting platform for rail vehicles, which can improve efficiency, enhance safety, and is easy to assemble and disassemble while being low in cost.

[0030] 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.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] This invention overcomes the problems of long working times, worker fatigue, falls, and reduced production efficiency caused by the lack of suitable construction areas on existing rail vehicles or the need for repeated adjustments to the self-driven electric lifting platform, which hinders production efficiency and affects the sealant's effectiveness. By modifying the main body of the electric lifting platform into a working platform that matches the front window of a rail vehicle and allows for flexible raising and lowering, this invention addresses these issues. The platform extension device provided by this invention achieves a better match between the working platform and the rail vehicle's front window profile. Furthermore, during operation, the platform can be raised and lowered at any time to meet construction requirements for glass up to 2.5 meters in length, improving the safety and efficiency of front window glass construction.

[0033] Please refer to Figures 1 to 6 , Figure 1A schematic diagram of the overall structure of the platform extension device and the platform body provided by this utility model; Figure 2 A partial structural schematic diagram of the platform extension device provided by this utility model; Figure 3 A partial structural schematic diagram of the platform extension device provided by this utility model; Figure 4 A top view of the platform extension device and the platform body provided by this utility model; Figure 5 This is a schematic diagram of the structure of the connecting shaft frame in the platform extension device provided by this utility model. Figure 6 This is a schematic diagram of the hook structure mounting base of the platform body in the lifting platform for rail vehicles provided by this utility model.

[0034] In this embodiment, the platform extension device 100 includes a front extension pedal 110 and a first side extension pedal 120 and / or a second side extension pedal 130 located on both sides of the front extension pedal 110. The front extension pedal 110, the first side extension pedal 120 and the second side extension pedal 130 are detachably connected to the platform body 200, and the front extension pedal 110, the first side extension pedal 120 and the second side extension pedal 130 surround to form a contour-following clearance space 140, which is adapted to the shape of the front window of the rail vehicle.

[0035] Specifically, at least a front extension step 110 is provided at the front of the platform body 200, with the front extension step 110 facing the front window of the rail vehicle. Side extension steps are provided on the left and right sides of the front of the platform body 200. Preferably, a first side extension step 120 and a second side extension step 130 can be provided on the left and right sides of the front of the platform body 200, respectively. That is, the first side extension step 120 and the second side extension step 130 are located on the left and right sides of the front extension step 110. The first side extension step 120, the second side extension step 130 and the front extension step 110 together form a U-shaped structure. The contour-following clearance space 140 is located in the hollow part of the U-shaped structure. The contour-following clearance space 140 is used to adapt to the shape of the front window of the rail vehicle, thereby reducing the gap 112 between the frame of the rail vehicle and the platform extension device 100 and reducing the risk of falling.

[0036] The platform extension device 100 provided by this utility model extends the platform body 200 by setting a front extension step 110 and a first side extension step 120 and / or a second side extension step 130. Furthermore, by setting a contour-following clearance space 140, which adapts to the shape of the front window of the rail vehicle, the working platform composed of the front extension step 110, the first side extension step 120, and / or the second side extension step 130 can better match the shape of the front window of the rail vehicle, improving the safety and efficiency of front window glass construction. This platform extension device 100 provides a safe, reliable, efficient, and convenient working environment. Especially when handling large-sized glass up to 2.5m long, it can flexibly adjust the height to meet construction requirements, thus significantly improving work efficiency and ensuring the quality of sealant application. In addition, the design of the entire device takes cost-effectiveness into account, avoiding the time and expense required to build a new fixed construction platform.

[0037] In some embodiments, the front extension pedal 110 has an arc-shaped extension 111 on the side away from the platform body 200. The arc-shaped extension 111 is the main structure constituting the contour-following clearance space 140. The size of the arc-shaped extension 111 is adapted to the size of the front window. The arc-shaped extension 111 is located near the first side extension pedal 120 or the second side extension pedal 130. Preferably, arc-shaped extensions 111 are provided on both the left and right sides of the front extension pedal 110, which is adapted to the structure of the left and right sides of the front window of the rail vehicle. That is, the front extension pedal 110 has a left-right symmetrical structure. A gap 112 is provided between the arc-shaped extension 111 and the adjacent first side extension pedal 120 or second side extension pedal 130, so that the front extension pedal 110, the first side extension pedal 120 and the second side extension pedal 130 can be independently installed and removed, avoiding interference. The size of the gap 112 gradually increases from the side near the front extension pedal 110 to the other side. The size of the gap 112 can be 50~100mm.

[0038] In some embodiments, the first side extension pedal 120 and / or the second side extension pedal 130 have a tapering structure from one side near the front extension pedal 110 to the other side; the tapering structure and the arcuate extension 111 form a contour-following clearance space 140, which matches the front window structure of the rail vehicle.

[0039] In some embodiments, the upper surfaces of the front extension pedal 110, the first side extension pedal 120, and / or the second side extension pedal 130 are provided with anti-slip parts, and the lower surfaces are provided with reinforcing ribs. Specifically, the front extension pedal 110, the first side extension pedal 120, and / or the second side extension pedal 130 can be made of anti-slip steel plates with a thickness of 15-25mm. The front has anti-slip parts, which can be raised textures to provide anti-slip properties; the back has reinforcing ribs, which can be horizontal and vertical reinforcing beams, to ensure that each extension pedal can bear a weight of 200kg when laid flat.

[0040] In some embodiments, flexible protective components are provided on the side of the front extension pedal 110 facing away from the platform body 200 and around the periphery of the first side extension pedal 120 and / or the second side extension pedal 130; and / or, warning markings are provided on the flexible protective components. Specifically, flexible protective components are used at the middle position of the side of the front extension pedal 110 facing away from the platform body 200 and around the periphery of the first side extension pedal 120 and / or the second side extension pedal 130. The flexible protective components can be black and yellow rubber protective plates, and the thickness of the flexible protective components should be greater than 5mm, serving the purpose of protecting accessories, preventing bumps and scratches, and providing edge safety warnings.

[0041] In some embodiments, an anti-tipping extension bracket 121 is provided on the opposite side of the first side extension pedal 120 and the second side extension pedal 130. The anti-tipping extension bracket 121 is used to fix it on a fixed construction platform. Specifically, in order to reduce the risk of lateral tilting of the first side extension pedal 120 and the second side extension pedal 130 under load, an anti-tilting device can be added, such as the anti-tipping extension bracket 121. The anti-tipping extension bracket 121 can be angle steel, that is, two angle steel pieces protruding from the opposite directions of the first side extension pedal 120 and the second side extension pedal 130. During construction, they overlap on the fixed construction platform to prevent the work platform from tipping over.

[0042] In some embodiments, the system further includes several guardrails 150 and several chains 160. The guardrails 150 are located on the outside of the first side extension pedal 120 and / or the second side extension pedal 130 and extend longitudinally. The chains 160 extend laterally and are detachably connected between adjacent guardrails 150. Specifically, the guardrails 150 can be cylindrical tubular railings with a height of 800-1200mm. The chains 160 extend perpendicularly to the guardrails 150, and hooks can be provided at both ends of the chains 160 to connect with the guardrails 150. During construction, the guardrails 150 can be quickly assembled, and after completion, they are easy to disassemble and store without taking up space. Preferably, guardrails 150 are provided on the side of the first side extension pedal 120 and the second side extension pedal 130 that are opposite to each other, and on the side of the first side extension pedal 120 and the second side extension pedal 130 that are opposite to the front extension pedal 110. The chains 160 can be arranged in multiple layers longitudinally for better protection.

[0043] In some embodiments, a plurality of mounting holes 122 are provided on the upper surface of the side of the first side extension pedal 120 and the second side extension pedal 130 that are away from each other, and the guardrail 150 is detachably connected to one of the mounting holes 122. Specifically, by providing mounting holes 122 on the side of the first side extension pedal 120 and the second side extension pedal 130 that are away from each other, and on the side of the first side extension pedal 120 and the second side extension pedal 130 that are away from the front extension pedal 110, the mounting holes 122 are insertion holes into which the guardrail 150 is inserted, allowing the guardrail 150 to be quickly assembled during construction and easily disassembled after completion.

[0044] In some embodiments, the front extension pedal 110, the first side extension pedal 120, and / or the second side extension pedal 130 are provided with a connecting pivot frame 170 on the side near the platform body 200. The connecting pivot frame 170 is used to connect with the hook structure mounting seat 210 on the platform body 200. Specifically, by connecting the connecting pivot frame 170 with the hook structure mounting seat 210, the platform extension device 100 is detachably connected to the platform body 200, making assembly and disassembly convenient. Furthermore, during operation, the platform can be raised and lowered at any time to meet construction needs for glass up to 2.5m in length; that is, the platform extension device 100 can rise and fall with the platform body 200. Multiple connecting pivot frames 170 can be provided on the front extension pedal 110, the first side extension pedal 120, and the second side extension pedal 130 to ensure stability.

[0045] In some embodiments, the connecting shaft frame 170 includes a first shaft support plate 171, a second shaft support plate 172, and a shaft body 173. The shaft body 173 is located between the first shaft support plate 171 and the second shaft support plate 172, and at least one of the first shaft support plate 171 and the second shaft support plate 172 has a snap-fit ​​boss 174 at its bottom. When the connecting shaft frame 170 is connected to the hook structure mounting base 210, the snap-fit ​​boss 174 abuts against the side wall 211 of the platform body 200. Specifically, the shaft body 173 is connected to the outer ends of the first shaft support plate 171 and the second shaft support plate 172, that is, the end of the first shaft support plate 171 and the second shaft support plate 172 that is away from the front extension pedal 110, the first side extension pedal 120, or the second side extension pedal 130, and is also the end that is close to the platform body 200, which can provide assembly space for the hook structure mounting base 210. When the platform extension device 100 is installed with the platform body 200, the rotating shaft body 173 is directly inserted into the groove of the hook structure mounting seat 210, and the locking boss 174 automatically presses against the side wall 211 of the platform body 200. Each pedal in the platform extension device 100 hangs down, the structure is firmly connected, and it is easy to disassemble and assemble.

[0046] In one specific embodiment, four, two, and two front extension pedals 110, two first side extension pedals 120, and two second side extension pedals 130 are respectively provided to enhance the structural robustness. At the same time, the structure formed by connecting the pivot frame 170 and the hook structure mounting base 210 can be quickly disassembled and assembled, making it convenient to replace front extension pedals 110, first side extension pedals 120, and / or second side extension pedals 130 of different sizes to meet the construction needs of front windshields of different vehicle models.

[0047] The platform extension device 100 can be applied to the front window glass operation platform of intelligent intercity EMUs. By adding three extension steps and detachable guardrails 150 to the existing electric lifting platform body 200, the platform extension device 100 achieves a perfect match with the construction area of ​​the vehicle body, solving the problems of inconvenient construction, high safety risks, and low production efficiency existing in the prior art. The platform extension device 100, through the independent configuration of the front extension step 110, the first side extension step 120, and the second side extension step 130, is easy to assemble and disassemble, and different sizes of the front extension step 110, the first side extension step 120, and / or the second side extension step 130 can be quickly replaced according to the glass installation requirements. The design of the detachable cylindrical guardrails 150 and the use of connecting hooks provide additional safety around the perimeter, and they can be easily removed when not in use. The application of black and yellow rubber protective plates aims to protect the components from damage and prevent workers from being injured.

[0048] In addition to the aforementioned platform extension device 100, this utility model also provides a lifting platform for rail vehicles, which includes a platform body and the aforementioned platform extension device 100. The platform extension device 100 is installed on the platform body 200, which can be an automatic lifting platform. The platform extension device 100 can rise and fall together with the platform body 200. For the structure of other parts of this lifting platform for rail vehicles, please refer to relevant technologies, which will not be described in detail here.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The platform extension device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A platform extension device, characterized in that, It includes a front extension pedal (110) and a first side extension pedal (120) and / or a second side extension pedal (130) located on both sides of the front extension pedal (110). The front extension pedal (110), the first side extension pedal (120) and the second side extension pedal (130) are detachably connected to the platform body (200). The front extension pedal (110), the first side extension pedal (120) and the second side extension pedal (130) surround a contour-following clearance space (140) for adapting to the shape of the front window of the rail vehicle.

2. The platform extension device according to claim 1, characterized in that, The front extension pedal (110) has an arc-shaped extension (111) on the side away from the platform body (200). The arc-shaped extension (111) is located close to the first side extension pedal (120) or the second side extension pedal (130), and there is a gap (112) between the arc-shaped extension (111) and the adjacent first side extension pedal (120) or second side extension pedal (130).

3. The platform extension device according to claim 1, characterized in that, The first side extension pedal (120) and / or the second side extension pedal (130) have a tapered structure from one side near the front extension pedal (110) to the other side.

4. The platform extension device according to claim 1, characterized in that, The upper surface of the front extension pedal (110), the first side extension pedal (120) and / or the second side extension pedal (130) is provided with an anti-slip part, and the lower surface is provided with a reinforcing rib.

5. The platform extension device according to claim 1, characterized in that, The front extension pedal (110) is provided with a flexible protective component on the side opposite to the platform body (200) and on the periphery of the first side extension pedal (120) and / or the second side extension pedal (130); and / or, the flexible protective component is provided with a warning label.

6. The platform extension device according to claim 1, characterized in that, An anti-tipping extension bracket (121) is provided on the side opposite to the first side extension pedal (120) and the second side extension pedal (130), and the anti-tipping extension bracket (121) is used to be fixed on the fixed construction platform.

7. The platform extension device according to any one of claims 1 to 6, characterized in that, It also includes a number of guardrails (150) and a number of chains (160), the guardrails (150) being disposed on the outside of the first side extension pedal (120) and / or the second side extension pedal (130) and extending longitudinally, the chains (160) extending laterally, and the chains (160) being detachably connected between two adjacent guardrails (150); And / or, the upper surfaces of the first side extension pedal (120) and the second side extension pedal (130) on the opposite sides are provided with a plurality of mounting holes (122), and the guardrail (150) is detachably connected to one of the mounting holes (122).

8. The platform extension device according to any one of claims 1 to 6, characterized in that, The front extension pedal (110), the first side extension pedal (120) and / or the second side extension pedal (130) are provided with a connecting shaft frame (170) on the side near the platform body (200), the connecting shaft frame (170) being used to cooperate with the hook structure mounting seat (210) on the platform body (200).

9. The platform extension device according to claim 8, characterized in that, The connecting shaft frame (170) includes a first shaft support plate (171), a second shaft support plate (172), and a shaft body (173). The shaft body (173) is located between the first shaft support plate (171) and the second shaft support plate (172). At least one of the first shaft support plate (171) and the second shaft support plate (172) is provided with a snap-fit ​​boss (174) at its bottom. When the connecting shaft frame (170) is connected to the hook structure mounting base (210), the snap-fit ​​boss (174) abuts against the side wall (211) of the platform body (200).

10. A lifting platform for rail vehicles, comprising a platform body (200) and a platform extension device (100) mounted on the platform body (200), characterized in that, The platform extension device (100) is the platform extension device according to any one of claims 1 to 9.

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