Portable urban rail rescue ladder pedal mechanism

Abstract

The utility model discloses a portable urban rail rescue ladder pedal mechanism which is arranged between two rows of symmetrical side hinged plates, pedals are fixedly arranged between the side hinged plates which are symmetrically arranged in pairs, and the pedals are arranged between the two symmetrical side hinged plates in the horizontal direction; the included angle between the bottom face of one pedal and the corresponding side hinged plate is set to be alpha, and the included angle between the top face of the adjacent pedal and the corresponding side hinged plate is set to be beta. Wherein alpha and beta are complementary; the value of beta is greater than the value of alpha; the pedals are arranged at the one-third positions of the corresponding side hinge plates. The portable urban rail rescue ladder pedal mechanism disclosed by the utility model is ingenious in structure and avoids interference, and by setting the angles and the positions of the pedals, the storage volume after the pedal mechanism is folded is smaller, and the comfort is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of devices for urban rail transit vehicles, and particularly relates to a portable pedal mechanism for urban rail rescue ladders. Background Technique

[0002] In recent years, the urban rail transit system has developed rapidly. As an important part of urban public transportation, it undertakes the daily travel needs of a large number of passengers. However, due to the complexity and particularity of the operation of the urban rail transit system, in case of accidents such as train derailment, fire, power outage and other emergencies, how to quickly and effectively carry out emergency rescue and ensure the safety of passengers and staff has become a crucial issue.

[0003] As the main evacuation passage, the urban rail rescue ladder ensures that rescue personnel and equipment can quickly reach the accident site, effectively carry out rescue work, and evacuate passengers from the train in time, greatly reducing the risk of casualties, and plays a crucial role in emergency rescue. Especially in terms of vertical transportation, such as the emergency evacuation between the subway platform and the concourse, and between different height areas in the tunnel, the rescue ladder has become an indispensable rescue equipment.

[0004] As the most direct and most used part by users, the comfort design of the pedal of the urban rail rescue ladder has an important position. At present, due to avoiding interference problems after folding, the effective contact area of the pedal of the folding rescue ladder for foot contact is small, and the large pressure on the foot during the stepping process causes poor comfort for users and is prone to pose a safety threat. Therefore, it is urgent to design a pedal mechanism with both comfort and safety and solve the problem of pedal interference after the urban rail rescue ladder is folded.

[0005] At present, the following problems exist in the pedal mechanism of the rescue ladder:

[0006] (1) The contact area of the pedal is small and the comfort is poor. The effective contact area for stepping on the pedal is small, the pressure is large, and the comfort and safety are poor.

[0007] (2) The contact area of the pedal is large and the weight is large. The effective contact area for stepping on the pedal is large, and the overall weight of the rescue ladder is large, resulting in a large occupied space and inconvenient carrying.

[0008] (3) The pedal design affects the folding of the ladder. Due to the interference of the pedal, the folding rescue ladder cannot be completely folded, affecting the convenience of carrying.

[0009] In view of the above problems, in order to improve the comfort and safety of the rescue ladder and facilitate the quick folding of the rescue ladder, the purpose of this application is to provide a portable pedal mechanism for urban rail rescue ladders. By setting the pedal angle, the problem of pedal interference after folding is cleverly avoided, and at the same time, the effective area of the pedal for stepping is increased, improving safety and comfort. Summary of the Utility Model

[0010] In view of the above defects or deficiencies in the prior art, it is desired to provide a pedal mechanism for a portable urban rail rescue ladder.

[0011] A pedal mechanism for a portable urban rail rescue ladder provided by the present utility model is arranged between two symmetrically arranged side hinge plates. It is characterized in that a pedal is fixedly arranged between the two symmetrically arranged side hinge plates, and the pedal is horizontally arranged between the two symmetrically arranged side hinge plates; the included angle between the bottom surface of one pedal and the side hinge plate is set as α, and the included angle between the top surface of its adjacent pedal and the corresponding side hinge plate is set as β; wherein, the relationship between α and β is as follows:

[0012] β = π - α;

[0013] And the value of β is set to be greater than the value of α; the pedal is arranged at one-third of the corresponding side hinge plate.

[0014] Furthermore, one of the side hinge plates in a row is rotatably connected to its adjacent two side hinge plates respectively through hinge connection heads, and the two adjacent side hinge plates of the side hinge plate are respectively rotated and hinged in opposite directions to realize the folding function.

[0015] Furthermore, both ends of the pedal are fixedly connected to the two corresponding side hinge plates respectively through reinforcing ribs to improve the structural stability after the pedal is installed.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] The pedal mechanism for a portable urban rail rescue ladder of the present utility model has the following advantages:

[0018] (1) The structure is ingenious and avoids interference;

[0019] By setting the angular relationship between the pedal and the ladder frame composed of two rows of side hinge plates, and the position where the pedal is installed on the side hinge plate, the folded pedals are arranged in two rows, ingeniously avoiding the problem of mutual interference of the pedals when the urban rail rescue ladder is folded, realizing more complete folding of the portable urban rail rescue ladder, reducing the occupied space and improving the portability;

[0020] (2) Good comfort;

[0021] Since the inclined pedals after folding are arranged at intervals, the width of the pedals can be increased within a certain range, increasing comfort while not affecting folding and storage; through the setting of the reinforcing ribs, while the effective foot area of the pedal is increased, the overall weight is effectively controlled, improving comfort while enhancing the load-bearing capacity and ensuring the working reliability of the portable urban rail rescue ladder.

[0022] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the present utility model, nor to limit the scope of the present utility model.

[0023] Other features of the present utility model will become easily understood through the following description. Description of the Drawings

[0024] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0025] Figure 1 Schematic structural view of a pedal mechanism of a portable urban rail rescue ladder in the deployed state provided by an embodiment of the present utility model;

[0026] Figure 2 Schematic structural view of the pedal mechanism of the portable urban rail rescue ladder in the folded state;

[0027] Figure 3 Side view of the pedal mechanism of the portable urban rail rescue ladder in the folded state;

[0028] Figure 4 Schematic structural view of the α angle relationship between the pedal and the side hinge plate;

[0029] Figure 5 Schematic structural view of the β angle relationship between adjacent pedals and the side hinge plate;

[0030] Figure 6 Schematic structural view of the pedal assembled with two symmetrical side hinge plates and stiffening ribs;

[0031] Reference numerals in the figure: 1, side hinge plate; 2, pedal; 3, stiffening rib; 4, hinge connection head. Detailed Description of the Embodiments

[0032] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the relevant utility model and not for limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0034] Please refer to Figures 1 to 6, an embodiment of the present utility model provides a pedal mechanism for a portable urban rail rescue ladder, which is arranged between two symmetrically arranged side hinge plates 1. Among them, the two symmetrically arranged side hinge plates 1 form a ladder frame, and parallel pedals 2 are fixedly arranged inside the ladder frame;

[0035] Specifically, pedals 2 are fixedly arranged between the two symmetrically arranged side hinge plates 1. The pedals 2 are horizontally arranged between the two symmetric side hinge plates 1; the included angle between the bottom surface of one pedal 2 and the side hinge plate 1 is set as α, and the included angle between the top surface of its adjacent pedal 2 and its corresponding side hinge plate 1 is set as β; among them, according to the principle of central symmetry, the relationship formula between α and β is as follows:

[0036] β = π - α;

[0037] The relationship between α and β can avoid interference between the pedals 2 after the portable urban rail rescue ladder is folded, and at the same time, keep the vertical height between the pedals 2 consistent after unfolding, with the characteristics of safety and comfort;

[0038] And the value of β is set to be greater than the value of α, so that the pedal 2 is inclined in a certain direction, increasing the width of the pedal 2 within a certain range, making it more convenient to step on, and by setting the value of β, the risk of slipping and body forward tilt can be reduced;

[0039] In a preferred embodiment, both ends of the pedal 2 are fixedly connected to the two corresponding side hinge plates 1 through reinforcing ribs 3 respectively, so as to improve the stability and reliability of the structure after the pedal 2 is installed.

[0040] The pedal 2 is arranged at about one-third of the corresponding side hinge plate 1, so that the spaced pedals 2 after folding can be arranged, that is, the first, third, fifth and other odd-numbered pedals 2 are arranged in a row, and the second, fourth, sixth and other even-numbered pedals 2 are arranged in a row, reducing the storage volume after folding.

[0041] In a preferred embodiment, a certain side hinge plate 1 in a row is rotatably connected to its two adjacent side hinge plates 1 through hinge connectors 4 respectively; and the two adjacent side hinge plates 1 of the side hinge plate 1 rotate and hinge in opposite directions relative to the middle side hinge plate 1, so as to realize the folding function, and make the two adjacent pedals 2 arranged up and down respectively, avoiding the problem of folding interference, and also reducing the storage volume after folding, which is convenient to carry.

[0042] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A portable pedal mechanism for urban rail rescue ladders, which is arranged between two symmetrically arranged side hinge plates, and is characterized in that, A pedal is fixedly arranged between the laterally hinged plates arranged symmetrically in pairs, and the pedal is arranged horizontally between two symmetrical laterally hinged plates; the included angle between the bottom surface of one pedal and the laterally hinged plate is set as α, and the included angle between the top surface of its adjacent pedal and the corresponding laterally hinged plate is set as β; wherein, the relationship formula between α and β is as follows: β＝π﹣α； And the value of β is set to be greater than the value of α; the pedal is arranged at one-third of the corresponding laterally hinged plate.

2. The pedal mechanism of the portable urban rail rescue ladder according to claim 1, characterized in that, One of the laterally hinged plates in a column is rotatably connected to its two adjacent laterally hinged plates respectively through hinge connectors, and the two adjacent laterally hinged plates of the laterally hinged plate are respectively rotated and hinged in opposite directions to realize the folding function.

3. The pedal mechanism of the portable urban rail rescue ladder according to claim 2, wherein, Both ends of the pedal are fixedly connected to two corresponding laterally hinged plates respectively through reinforcing ribs to improve the structural stability after the pedal is installed.

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