A top ladder for rail vehicle maintenance

Abstract

The utility model discloses a kind of top ladder for rail vehicle maintenance, belong to rail vehicle maintenance auxiliary tool technical field, the utility model is provided with base, it can be moved at any position;Ladder body, one end is movably connected with the base through turnover mechanism, the other end extends obliquely upwards, the ladder body top end connects boarding platform, and contacts with car body;And fixed rod, it is fixedly connected with the base, the fixed rod can lock the ladder body at any angle through connecting piece, so as to make the ladder body adapt car body height and the interval between two car bodies, the utility model effectively solves the problem of limited space, convenient to adjust, flexible to use, effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for rail vehicle maintenance, and in particular to a ladder for rail vehicle maintenance. Background Technology

[0002] In the daily maintenance and repair of railway passenger cars, staff often need to climb onto the roof to inspect and clean equipment, making the roof ladder an indispensable tool. However, the roof ladders currently used on railway passenger cars have a series of problems that urgently need to be addressed.

[0003] Some ladders for reaching the railway station have overly complex designs, requiring significant time and effort from professionals for installation, and their operation is cumbersome. For example, some ladders require the coordinated operation of multiple components when unfolding and retracting, involving complex connection and unlocking mechanisms. In emergencies, such as when a train malfunctions and requires rapid access for repairs, these complex procedures can severely hinder workers from reaching the station in a timely manner, causing delays in troubleshooting and disrupting the normal operation of railway transportation.

[0004] Some ladders used for climbing the mountain have poor stability. Due to the complex terrain of railway maintenance sites, which may include uneven surfaces and slopes, some existing ladders fail to adequately consider these factors and lack effective stabilization measures. During the climb, even a slight misstep can cause the ladder to sway or tip over, posing a serious threat to the lives of the workers. According to relevant statistics, in recent years, safety accidents caused by ladder instability have occurred frequently, resulting in varying degrees of personal injury and economic losses.

[0005] Some of the ladders are also enormous. Space between railway passenger cars is very limited, and large ladders are extremely inconvenient to operate between two trains. They not only occupy valuable maintenance space and affect the smooth progress of other maintenance operations, but also pose a major problem when not in use, reducing the space utilization rate of the maintenance site and increasing management costs.

[0006] Therefore, in view of the above problems, it is necessary for this utility model to provide a simple, convenient, safe, stable and space-saving climbing ladder for the maintenance of rail vehicles. Utility Model Content

[0007] The purpose of this utility model is to overcome the defects of the existing technology and provide a ladder for the maintenance of rail vehicles, which solves the problems of low operating efficiency, poor space adaptability and safety hazards in the existing technology.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] This utility model discloses a ladder for maintenance of rail vehicles, comprising:

[0010] The base can be moved to any position.

[0011] The ladder body has one end movably connected to the base via a flipping mechanism, and the other end extends upward at an angle. The top of the ladder body is connected to a boarding platform and contacts the vehicle body.

[0012] A fixing rod is fixedly connected to the base. The fixing rod can be locked at any angle to the ladder body through a connector so that the ladder body can adapt to the height of the vehicle body and the distance between the two vehicle bodies.

[0013] Furthermore, the base includes a base platform, on both sides of which are symmetrically fixed a first pulley that can move along the length direction of the vehicle body and a second pulley that can move along the width direction of the vehicle body.

[0014] Furthermore, positioning seats are symmetrically arranged at both ends of the base platform, and positioning rods are slidably connected to the positioning seats. Platform fixing pins are fixed to the sides of the positioning rods, and locking pins are threaded to the sides of the positioning seats to lock the position of the positioning rods.

[0015] Furthermore, the flipping mechanism is connected to the ladder body via a shaft, so that the ladder body can be flipped 180° on the base surface.

[0016] Furthermore, the ladder body includes two symmetrically arranged step fixing seats for connecting to the ends of the boarding steps, and the step fixing seats and the two adjacent boarding steps form a parallel four-bar linkage mechanism.

[0017] Furthermore, the flipping mechanism includes a base plate, and the base plate is provided with an ear plate at the position corresponding to the step fixing seat. The ear plate is rotatably connected to the step fixing seat via a shaft.

[0018] Furthermore, the top of the fixing rod is provided with an elongated hole, which is fixedly connected to the ladder body through the connector, and the ladder body is locked at any angle.

[0019] Furthermore, guardrails are fixedly connected to both the base and the edge of the ladder.

[0020] Furthermore, the guardrail handrail is fixedly connected to the base and the ladder body in a detachable manner.

[0021] Furthermore, the entire ladder body is made of aluminum alloy.

[0022] The above technical solution provides a climbing ladder for rail vehicle maintenance, which has the following advantages:

[0023] The ladder designed in this utility model has one end of the ladder body connected to the base via a flipping mechanism, and the other end extending upward at an angle. The ladder body is locked at any angle by a fixing rod fixed to the base. This allows the ladder body to be adapted to the height of the vehicle body at any height, as well as to the narrow gap between vehicles on both sides, effectively solving the problem of limited space. It is easy to adjust and flexible to use, effectively improving work efficiency. In addition, the installation of detachable handrails can provide stable support for workers and enhance safety during use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This utility model discloses an axonometric drawing of a ladder for maintenance of rail vehicles;

[0026] Figure 2 This is a front view of a ladder for maintenance of rail vehicles disclosed in this utility model;

[0027] Figure 3 This is a left view of a ladder for maintenance of rail vehicles disclosed in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Base; 11-Base platform; 12-Fixing pin; 13-First pulley; 14-Second pulley; 15-Base guardrail; 16-Push-pull handrail; 17-Positioning seat; 17.1-Locking pin;

[0030] 2-Ladder body; 21-Ladder step fixing seat; 22-Boarding ladder step; 23-Boarding platform; 24-Nylon pulley; 25-Platform handrail; 26-Ladder step handrail;

[0031] 3-Flipping mechanism; 33-Ear plate;

[0032] 4-Fixing rod; 41-Elongated hole. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] See Figure 1-3 As shown;

[0035] A utility model discloses a climbing ladder for maintenance of rail vehicles, comprising: a base 1, a ladder body 2, a tilting mechanism 3, and a fixing rod 4;

[0036] The base 1 can move to any position. One end of the ladder body 2 is movably connected to the base 1 through a flipping mechanism 3, and the other end extends upward at an angle. The top of the ladder body 2 is connected to the boarding platform 23, which contacts the vehicle body. The fixing rod 4 is fixedly connected to the base 1. The fixing rod 4 can lock the ladder body 2 at any angle through a connector. This connector can be a bolt assembly in the prior art. This climbing ladder, with the ladder body 2 movably connected to the base 1 through the flipping mechanism 3 and locked at any angle by the fixing rod 4, allows the ladder body 2 to be adapted to the height of the vehicle body at any height, as well as to the narrow gap between vehicles on both sides. This effectively solves the problem of limited space, is easy to adjust, flexible in use, and effectively improves work efficiency.

[0037] See Figure 1 As shown:

[0038] The base 1 includes a quadrilateral base platform 11. A first pulley 13 and a second pulley 14 are symmetrically fixed to both ends of the base platform 11. The base platform 11 is moved along the length of the vehicle body via the first pulley 11 to adjust the ladder's position. The base platform 11 is moved along the width of the vehicle body via the second pulley 14, allowing for flexible adjustment of the ladder's height and angle according to the vehicle's roof height and actual operational needs, thus improving the ladder's versatility. The second pulley 14 is connected to the base platform 11 via a bracket and is fixed in position. A screw is fixed to the top of the first pulley 13's mounting base, and the screw drives the base platform 11, enabling the first pulley 13 to move vertically. When using the first pulley 13 to move the ladder, the screw is rotated, causing the first pulley 13 to protrude beyond the height of the second pulley 14 and contact the ground, thus allowing the ladder to be moved using the first pulley 13. When not in use, the first pulley 13 can be retracted away from the ground, allowing the second pulley 14 to contact the ground.

[0039] Positioning seats 17 are symmetrically arranged on both sides of the base platform 11. The positioning seats 17 are slidably connected to the platform positioning rods via slide rails. The positioning rods are fixedly connected to the fixing pins 12. The side of the positioning seat 17 is threaded with a locking pin 17.1. The end of the locking pin 17.1 can extend into the slide rail and abut against the platform positioning rod to lock the position of the platform positioning rod. When in use, after the climbing ladder reaches the designated operating position, first rotate and retract the first pulley 13. Then, step on the fixing pin 12, and the bottom end of the positioning rod contacts the ground. Then rotate the locking pin 17.1 to connect with the positioning rod and lock the position of the positioning rod, which prevents the second pulley 14 from moving arbitrarily and achieves the purpose of fixing the base platform 11.

[0040] Preferably, the flipping mechanism 3 is connected to the ladder body 2 via a shaft, so that the ladder body 2 can be flipped 180° on the base surface for switching between two car bodies on adjacent tracks;

[0041] See Figure 2 As shown:

[0042] The ladder body 2 includes two step fixing seats 21, several boarding steps 22, and a boarding platform 23. The entire ladder body 2 is made of high-strength lightweight materials, such as aluminum alloy. This material has both high strength, which can withstand the weight of workers climbing and various stresses in daily use, and lightweight characteristics, which reduces the weight of the entire climbing ladder and makes it easy to move and operate.

[0043] The stair step fixing seat 21 consists of two spaced vertical beams, both of which are rotatably connected to the ends of the boarding stair step 22, thus forming a parallel four-bar linkage. One side of the boarding platform 23 is connected to the two vertical beams, and the other side extends towards the car body in the form of a cantilever. The end of the boarding platform 23 contacts the car body through a nylon pulley 24. When the nylon pulley 24 contacts the car body, it can effectively avoid scratching the surface of the car body and protect the appearance quality of the train body.

[0044] See Figure 1 As shown:

[0045] Preferably, the flipping mechanism 3 includes a base plate, which is fixedly connected to the base platform 11. The base plate is provided with an ear plate 31 at the position corresponding to the step fixing seat 21. The ear plate 31 is rotatably connected to the step fixing seat 21 via a shaft, so that the climbing ladder can be easily flipped in the narrow space between two rail trains, realizing the quick switching of trains for climbing operations, greatly improving work efficiency and effectively solving the problem of limited space.

[0046] Preferably, the top of the fixing rod 4 has an elongated hole 41, which mates with multiple round holes on the ladder step fixing seat 21 and is fixed by a bolt assembly, enabling the ladder body 2 to be locked at any angle and precisely fixing the ladder step angle. This ensures the stability of the ladder step when workers climb, further improving safety. The boarding ladder step 22 and boarding platform 23 of the ladder body 2 provide workers with access to the roof operating position, and the design is reasonable and convenient for climbing.

[0047] See Figure 1 As shown:

[0048] Preferably, guardrails are fixedly connected to the edges of both the base 1 and the ladder body 2.

[0049] The handrail includes a right-angle base handrail 15 connected to the base platform 11, a platform handrail 25 connected to the boarding platform 23, and a step handrail 26 connected to the step fixing seat 21. All handrails are detachably connected to the base platform 11 or the ladder body 2. The detachable connection can be made by plugging, pinning, or bolting. When using the ladder to the top, these handrails can provide stable support for workers and enhance safety during use.

[0050] One end of the base platform 11 is equipped with a push-pull handrail 16 for the boarding ladder, which makes it convenient for staff to push or pull the boarding ladder so that it can be easily moved to the required position.

[0051] In the above technical solution, the climbing ladder for rail vehicle maintenance provided by this utility model has a simple structure compared with the prior art, which greatly reduces the difficulty of installation and manufacturing; it is convenient and quick to operate. In emergency situations, workers can quickly complete the movement, flipping, and fixing of the climbing ladder, and quickly switch trains for climbing operations, effectively improving work efficiency; the flipping design makes it flexible to operate in the narrow space between two trains, and does not occupy too much space when placed; the combination of high-strength lightweight materials and stable fixing devices fully ensures the safety and stability of the climbing ladder. This climbing ladder:

[0052] High-efficiency switching: The flipping mechanism enables the ladder body to flip 180°, reducing the switching time between two car bodies on adjacent tracks to within 5 minutes;

[0053] Safe and reliable: The top of the ladder is connected to the vehicle body by nylon pulleys to prevent scratches. It is double-fixed by fixing rods and platform fixing pins, and has an impact resistance of up to 12kN.

[0054] Modular design: The guardrails and pulleys are connected in a detachable manner, making them easy to assemble and disassemble.

[0055] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ladder for maintaining and accessing railway vehicles, characterized in that, include: The base (1) is movable to any position; The ladder body (2) has one end connected to the base (1) via a flipping mechanism (3), and the other end extends upward at an angle. The top of the ladder body (2) is connected to the boarding platform (23) and contacts the vehicle body. as well as The fixing rod (4) is fixedly connected to the base (1). The fixing rod (4) can lock the ladder body (2) at any angle through the connector so that the ladder body (2) can adapt to the height of the vehicle body and the distance between the two vehicle bodies.

2. The climbing ladder for maintenance of rail vehicles according to claim 1, characterized in that: The base (1) includes a base platform (11), on both sides of which are symmetrically fixed a first pulley (13) that can move along the length of the vehicle body and a second pulley (14) that can move along the width of the vehicle body.

3. The climbing ladder for maintenance of rail vehicles according to claim 2, characterized in that: The base platform (11) is symmetrically provided with positioning seats (17) at both ends. The positioning seats (17) are slidably connected with positioning rods. The side of the positioning rod is fixedly connected with a platform fixing pin (12), and the side of the positioning seat (17) is threadedly connected with a locking pin (17.1) to lock the position of the positioning rod.

4. The climbing ladder for maintenance of rail vehicles according to claim 1, characterized in that: The flipping mechanism (3) is connected to the ladder body (2) via a shaft so that the ladder body (2) can be flipped 180° on the base surface.

5. The climbing ladder for maintenance of rail vehicles according to claim 4, characterized in that: The ladder body (2) includes two symmetrically arranged step fixing seats (21) for connecting to the ends of the boarding steps (22), and the step fixing seats (21) and the two adjacent boarding steps (22) form a parallel four-bar linkage mechanism.

6. The climbing ladder for maintenance of rail vehicles according to claim 5, characterized in that: The flipping mechanism (3) includes a base plate, and an ear plate (31) is provided on the base plate at the position corresponding to the step fixing seat (21). The ear plate (31) is rotatably connected to the step fixing seat (21) via a shaft.

7. A ladder for maintenance of rail vehicles according to claim 1 or 5, characterized in that: The top of the fixing rod (4) is provided with an elongated hole (41), and the elongated hole (41) is fixedly connected to the ladder body (2) through the connector, and the ladder body (2) is locked at any angle.

8. A ladder for maintenance of rail vehicles according to claim 1 or 5, characterized in that: The base (1) and the ladder body (2) are both fixedly connected to guardrails at their edges.

9. A ladder for maintenance of rail vehicles according to claim 8, characterized in that: The guardrail handrail is fixedly connected to the base (1) and the ladder body (2) in a detachable manner.

10. A ladder for maintenance of rail vehicles according to claim 1 or 5, characterized in that: The ladder body (2) is made of aluminum alloy.

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