Portable urban rail rescue ladder

Abstract

The utility model discloses a portable urban rail rescue ladder which comprises a folding ladder frame mechanism, a pedal, a spring driving mechanism and an anti-skid reinforcing mechanism, the plurality of pedals are uniformly and fixedly arranged in the folding ladder frame mechanism along the length direction of the rescue ladder; the anti-skid reinforcing mechanisms are arranged at the top and the bottom of the folding ladder frame mechanism and used for abutting against the contact points, and the stability of the rescue ladder after installation and in the using process is improved; the spring driving mechanism is arranged in the folding ladder frame mechanism and used for achieving automatic unfolding of the folding ladder frame mechanism. The portable urban rail rescue ladder disclosed by the utility model has the advantages of small occupied space and convenience in carrying through the arranged hinging module; the mounting position and angle of the pedal are set, so that the pedal is comfortable and safe; and through mutual supporting and limiting of the anti-skid reinforcing mechanisms and the hinge assemblies on the inner sides, the supporting stability of the rescue ladder in the unfolding state is improved, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of appliances for urban rail transit vehicles, in particular to a portable urban rail rescue ladder. Background Art

[0002] With the increasing complexity of urban rail transit systems and the continuous increase in passenger flow, passengers' requirements for the functionality, comfort, and safety of railway products are also getting higher and higher. Urban rail transit vehicles carry a large number of passengers. Especially during the morning and evening rush hours, the passenger flow density in the carriages is very high, and the emergency evacuation ability in case of emergencies is particularly important. As one of the important facilities for train emergency evacuation, the emergency rescue ladder is an important tool affecting passengers' emergency escape or emergency transfer, and an important means to ensure the personal safety of passengers. Its importance and necessity have been widely recognized and emphasized.

[0003] Currently, the subway evacuation doors are set at the head of the train. In case of emergencies, the evacuation efficiency of passengers in the middle carriages is relatively low, and safety risks are likely to occur. There are still some limitations in the design and function of traditional EMU escape ladders. For example, when actually used, multiple personnel are required to manually cooperate to unfold and fold it. It is not convenient to use, the operation is relatively difficult, the time is long, the efficiency is low, and it is inconvenient to fold up and occupies a large space inside the car, causing many inconveniences in case of emergencies.

[0004] In order to quickly evacuate passengers in case of emergencies, a quick-fold emergency ladder should have the function of quickly unfolding in case of emergencies;

[0005] In case of emergencies, how to quickly and effectively evacuate passengers is an important issue that must be faced in train design and operation. Therefore, the design and manufacture of the emergency rescue ladder must fully consider the evacuation needs of passengers and the space layout inside the carriage.

[0006] Currently, the following problems exist in the train rescue ladder:

[0007] (1) It has a large volume. The vehicle has limited use space, and it cannot be folded, is not easy to store and collect; it is not convenient to carry and use, and is not conducive to the development of rescue work in case of emergencies;

[0008] (2) Its stability performance is low. The ladder frame of a general folding rescue ladder is supported by telescopic rods, and the structural stability of its support is low. Accidents such as tipping and falling have occurred, thus threatening personal safety and reducing its service life;

[0009] (3) It has no anti-overturning and anti-slip functions, and is prone to tipping, dumping, and sliding phenomena during use, causing safety risks.

[0010] In view of the above problems, the purpose of the present invention is to provide a portable urban rail rescue ladder, which has safety and portability, can reduce the occupied space, and improve portability. Summary of the Invention

[0011] In view of the above defects or deficiencies in the prior art, it is desirable to provide a portable urban rail rescue ladder.

[0012] A portable urban rail rescue ladder provided by the present utility model includes a folding ladder frame mechanism, pedals, a spring drive mechanism, and an anti-slip reinforcement mechanism; a plurality of the pedals are fixedly arranged inside the folding ladder frame mechanism along the length direction of the rescue ladder; the anti-slip reinforcement mechanism is arranged at the top and bottom of the folding ladder frame mechanism for abutting against the contact points to increase the stability of the rescue ladder after installation and during use; wherein,

[0013] The folding ladder frame mechanism includes two folding side frames arranged symmetrically left and right, and the folding side frame includes a plurality of hinge modules arranged vertically and hingedly; in the unfolded state, the hinge module is in a C shape; in the folded state, the hinge module is in a planar state;

[0014] The pedal is fixedly arranged between two symmetric hinge modules;

[0015] The spring drive mechanism is arranged inside the folding ladder frame mechanism for realizing the automatic unfolding of the folding ladder;

[0016] The anti-slip reinforcement mechanism includes a claw assembly arranged at the top of the folding ladder frame mechanism and an anti-slip assembly arranged at the bottom of the folding ladder frame mechanism for strengthening anti-slip at both ends of the folding ladder during use and improving its support stability.

[0017] Further, the hinge module includes an inner plate, a middle plate, and an outer plate, and the inner plate and the outer plate are respectively hingedly arranged on two symmetric sides of the middle plate; two inner plates, two middle plates, and two outer plates of two vertically adjacent hinge modules are respectively hingedly connected through hinge assemblies.

[0018] Further, the hinge assembly includes first hinge plates and second hinge plates fixedly arranged at both ends of the inner plate, the middle plate, and the outer plate, and the first hinge plates and the second hinge plates are respectively arranged on two side surfaces of the inner plate, the middle plate, and the outer plate; the first hinge plates on the inner plate, the middle plate, and the outer plate are respectively rotatably connected to the second hinge plates on the adjacent inner plate, middle plate, and outer plate through pin shafts.

[0019] Further, both ends of the pedal are respectively fixedly arranged on the side surfaces of two symmetric inner plates, the pedal is arranged at one-third of the length direction of two symmetric inner plates; the vertically arranged pedals are arranged parallel to each other.

[0020] Furthermore, the spring drive mechanism is arranged between two symmetrical hinge modules, and includes two cross-arranged springs, and the ends of the two springs are respectively fixedly arranged on the side surfaces of two symmetrical outer panels.

[0021] Furthermore, the claw assembly includes a travel guide rail fixedly arranged on the outer side surface of the outer plate at the top end, a slider is slidably arranged inside the travel guide rail, a strip through hole is arranged on the side of the travel guide rail away from the outer plate, a bolt is passed through the strip through hole and threadedly connected to the slider, and a claw is fixedly arranged on the end of the bolt away from the travel guide rail; a torsion spring is sleeved on the circumferential outer side of the bolt and located between the claw and the slider.

[0022] Furthermore, the anti-skid assembly includes an anti-skid pad fixedly arranged on the bottom surfaces of the two outer panels at the bottom end of the folding ladder.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The portable urban rail rescue ladder of the utility model has the following advantages:

[0025] (1) Small space occupation and easy to carry; the fast folding ladder of the present application connects the hinge modules through a hinge assembly, and can be folded as a whole when not in use; in an emergency, the outer plate and the middle plate are driven to fold quickly through a spring drive mechanism to form a C shape, which can be quickly and automatically unfolded and quickly put into work;

[0026] (2) Both comfort and safety; the pedals of the fast folding ladder of the present application are set to be nearly horizontal, which increases the effective pedaling area and improves comfort and safety; in addition, by setting the pedal inclination angle, the interference problem between the pedals after folding can be cleverly solved;

[0027] (3) Good reliability: The rescue ladder of the present application is provided with anti-skid modules at the top and bottom. The anti-skid module at the top reduces the risk of tipping and rollover by increasing the grip friction. In addition, after the articulated module is folded, the articulated components support and limit each other on their inner sides, thereby improving the support stability of the rescue ladder when it is unfolded, and having high reliability.

[0028] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model.

[0029] Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects, and advantages of the present utility model will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0031] Figure 1 Schematic structural diagram of a portable urban rail rescue ladder provided by an embodiment of the present utility model;

[0032] Figure 2 Schematic structural diagram of the portable urban rail rescue ladder after folding;

[0033] Figure 3 Schematic structural diagram of a partially enlarged structure of the portable urban rail rescue ladder in the deployed state;

[0034] Figure 4 Schematic structural diagram of the hinge module in a C-shaped state;

[0035] Figure 5 Schematic structural diagram of the hinge module in a flattened state;

[0036] Figure 6 Side view of the inner plate or outer plate;

[0037] Figure 7 Front view of the middle plate;

[0038] Figure 8 Schematic structural diagram of the claw assembly after folding;

[0039] Figure 9 Schematic structural diagram of the claw assembly in the clamped state;

[0040] Figure 10 Exploded view of the hinge module;

[0041] Reference numerals in the figure: 1, folding side frame; 11, hinge module; 111, inner plate; 112, middle plate; 113, outer plate; 114, hinge sleeve; 115, long pin rod; 116, hinge assembly; 1161, first hinge plate; 1162, second hinge plate; 1163, pin shaft;

[0042] 2, pedal; 3, spring; 4, claw assembly; 41, travel guide rail; 42, slider; 43, bolt; 44, claw; 45, torsion spring; 5, anti-slip pad. Detailed implementation manners

[0043] 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 used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of convenience of description, only parts related to the utility model are shown in the drawings.

[0044] 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 following will detail the present utility model with reference to the drawings and in conjunction with the embodiments.

[0045] Please refer to Figures 1 to 10 , an embodiment of the present utility model provides a portable urban rail rescue ladder, including a folding ladder frame mechanism, a pedal 2, a spring drive mechanism, and an anti-slip reinforcement mechanism;

[0046] The folding ladder frame mechanism is used to fold the main frame, reduce the storage occupied volume, and play a role in portability;

[0047] The pedal 2 is used for climbing. The set position and angle of it can increase the area of the pedal while ensuring that there is no interference during folding, improving comfort and being able to complete folding at the same time;

[0048] The spring drive mechanism is arranged inside the folding ladder frame mechanism and is used to assist in opening the folding ladder frame mechanism, improving the opening speed of the folding rescue ladder;

[0049] The anti-slip reinforcement mechanism is arranged at both ends of the folding ladder frame mechanism and is used to improve the stability between both ends of the rescue ladder and the contact points during use, avoiding the phenomenon of slipping and instability.

[0050] Specifically, a plurality of pedals 2 are uniformly and fixedly arranged inside the folding ladder frame mechanism along the length direction of the rescue ladder;

[0051] The anti-slip reinforcement mechanism is arranged at the top and bottom of the folding ladder frame mechanism and is used to abut against the contact points, increasing the stability of the rescue ladder after installation and during use; among them,

[0052] The folding ladder frame mechanism includes two folding side frames 1 arranged symmetrically left and right. The folding side frame 1 includes a plurality of hinge modules 11 arranged in an articulated manner up and down;

[0053] In the unfolded state, the hinge module 11 is in a C-shaped state; in the folded state, the hinge module 11 is in a planar state;

[0054] In a preferred embodiment, the hinge module 11 includes an inner plate 111, a middle plate 112 and an outer plate 113. The inner plate 111 and the outer plate 113 are respectively hinged on two symmetric sides of the middle plate. Therefore, the inner plate 111, the middle plate 112 and the outer plate 113 can be in a C shape after folding, improving the stability of support. Specifically, serrated hinge sleeves 114 are correspondingly arranged on both side surfaces of the middle plate 112, on one side surface of the inner plate 111 and on one side surface of the outer plate 113. The serrated hinge sleeves 114 on the side surfaces of the inner plate 111 and the outer plate 113 are butt-jointed with the serrated hinge sleeves 114 on both side surfaces of the middle plate 112 in a matching manner. After butt-joint, a long pin rod 115 can be inserted into them, and then the inner plate 111 and the outer plate 113 are hinged on both sides of the middle plate 112.

[0055] Two inner plates 111, two middle plates 112 and two outer plates 113 in two adjacent hinge modules 11 up and down are respectively hinged and connected through hinge components 116.

[0056] In a preferred embodiment, the hinge component 116 includes first hinge plates 1161 and second hinge plates 1162 fixedly arranged at both ends of the inner plate 111, the middle plate 112 and the outer plate 113. The first hinge plates 1161 and the second hinge plates 1162 are respectively arranged on two side surfaces of the inner plate 111, the middle plate 112 and the outer plate 113. The first hinge plate 1161 on the inner plate 111 is rotatably connected with the second hinge plate 1162 on the adjacent inner plate 11 through a pin shaft 1163. Similarly, the first hinge plate 1161 on the middle plate 112 and the outer plate 113 is hingedly connected with the second hinge plate 1162 on the adjacent middle plate 112 and the outer plate 113 through a pin shaft 1163. Since the setting directions of the first hinge plate 1161 and the second hinge plate 1162 on the same inner plate 111 or middle plate 112 or outer plate 113 are opposite, the rotation directions of the two adjacent inner plates 111 above and below an inner plate 111 are opposite to that of this inner plate 111. Therefore, the folding function can be realized, and the same applies to the middle plate 112 and the outer plate 113.

[0057] In addition, due to the arrangement of the first hinge plate 1161 and the second hinge plate 1162 in the hinge component 116, when the hinge module 116 is in a C shape in the folded state, the hinge module 116 can serve as a limit support mechanism to support the inner plate 111, the middle plate 112 and the outer plate 113 with each other, realizing the working reliability of the folding side frame 1 in the unfolded state.

[0058] The pedal 2 is fixedly arranged between two symmetric hinge modules 11.

[0059] In a preferred embodiment, both ends of the pedal 2 are fixedly arranged on the sides of two symmetrical inner plates 111. The pedal 2 is arranged at one-third of the length of the two symmetrical inner plates 111. Preferably, the top angle between the pedal 2 and the inner plate 111 is set to 72°, so that the folded pedal 2 is arranged in a double row, avoiding the problem of mutual interference during folding, and can increase the area of the pedal 2 while reducing the floor area during folding and storage. Among them, the angle between the bottom surface of one pedal 2 and the inner plate 111 is set to α, and the angle between the top surface of its adjacent pedal 2 and its corresponding inner plate 111 is set to β. Among them, α and β are complementary; and the value of β is set to be greater than the value of α; in the unfolded state, the two adjacent pedals 2 are parallel to each other.

[0060] The spring drive mechanism is arranged inside the folding ladder frame mechanism and is used to realize the automatic unfolding of the folding ladder.

[0061] In a preferred embodiment, the spring drive mechanism is arranged between two symmetrical hinge modules 11 and includes two cross-set springs 3. The ends of the two springs are fixedly arranged on the sides of two symmetrical outer plates. In the working state, when it is necessary to unfold the folding rescue ladder, the inner plates 111, the middle plates 112 and the outer plates 113 on the left and right sides of the pedal 2 are automatically unfolded to form a C-shaped ladder frame under the action of the springs 3. And relative to the entire folding rescue ladder, the C-shaped ladder frames on the left and right sides are symmetrically arranged with the middle pedal 2 as the center; in addition, the hinge edges and end bearing areas between the inner plates 111, the middle plates 112 and the outer plates 113 are large, reducing the pressure received after bearing, so as to use the C-shaped hinge module 11 as the ladder body to bear weight, improving the bearing capacity, safety and reliability.

[0062] The anti-slip reinforcement mechanism includes a claw assembly 4 arranged at the top of the folding ladder frame mechanism and an anti-slip assembly arranged at the bottom of the folding ladder frame mechanism, which is used to reinforce and anti-slip the two ends of the folding ladder during use, improving the stability of its support.

[0063] In a preferred embodiment, the claw assembly 4 includes a travel guide rail 41 fixedly arranged on the outer side of the outer plate 113 at the top. A slider 42 is slidably arranged inside the travel guide rail 41. A strip-shaped through hole is arranged on the side of the travel guide rail 41 away from the outer plate 113. A bolt 43 is threadedly connected to the slider 42 through the strip-shaped through hole. A claw 44 is fixedly arranged at one end of the bolt 43 away from the travel guide rail 41. A torsion spring 45 is sleeved on the outer circumference of the bolt 43 between the claw 44 and the slider 42.

[0064] Among them, the slider 42 has a certain movable space inside the travel guide rail 41 along the height direction of the travel guide rail 41, so that when the bolt 43 and the slider 42 rotate counterclockwise, the slider 42 and the travel guide rail 41 are tightly attached to each other, and then the position of the slider 42, the bolt 43 and the claw 44 as a whole on the travel guide rail 41 is limited and fixed, and the claw 44 is fixed on the fixed table; when the claw 44 needs to be reset, it is only necessary to use the force of the torsion spring 45 to drive the claw 44 to move in the opposite direction, and the bolt 43 and the slider 42 rotate in the opposite direction, thereby releasing the adhesion between the slider 42 and the travel guide rail 41, and realizing the reset of the claw 44.

[0065] In a preferred embodiment, the anti-skid assembly includes an anti-skid pad 5 fixedly arranged on the bottom surfaces of two outer panels at the bottom end of the folding ladder.

[0066] When in working state, the claw 44 is close to the train floor. Meanwhile, an anti-skid pad 5 is arranged at the bottom of the ladder frame to provide friction force under the action of the urban rail rescue ladder's own weight and the stepping force, thereby ensuring the safety of use.

[0067] After use, the C-shaped ladder frame of the articulated module 11 is flattened and the articulated modules 11 are merged in sequence to achieve rapid folding of the rescue ladder. The reverse design of the articulated joint formed between the first articulated plate 1161 and the second articulated plate 1162 at the two ends of the inner plate 111, the middle plate 112 and the outer plate 113 allows the articulated modules 11 to be merged in sequence without interfering with each other, thereby improving folding reliability and reducing occupied space.

[0068] When the rescue ladder of the present application is not used, the inner plate 111, the middle plate 112 and the outer plate 113 of the C-shaped ladder frame are flattened into an "I" shape, and then the hinged modules 11 of the bottom step are folded in sequence through hinges to complete the folding of the entire portable urban rail rescue ladder, thereby reducing the occupied space and improving the convenience of carrying.

[0069] In the description of this specification, the terms "connection", "installation", "fixation" and the like 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 ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0070] In the description of this specification, the descriptions of the terms "one embodiment", "some embodiments", etc. mean 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 the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0071] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A portable urban rail rescue ladder, characterized in that, It includes a folding ladder frame mechanism, pedals, a spring drive mechanism and an anti-slip reinforcement mechanism; A plurality of the pedals are fixedly arranged inside the folding ladder frame mechanism along the length direction of the rescue ladder; the anti-slip reinforcement mechanism is arranged at the top and bottom of the folding ladder frame mechanism and is used to abut against the contact points to increase the stability of the rescue ladder during installation and use; among them, The folding ladder frame mechanism includes two symmetrically arranged folding side frames on the left and right. The folding side frame includes a plurality of articulated modules arranged vertically and hinged. In the unfolded state, the articulated module is in a C shape; in the folded state, the articulated module is in a flat state; The pedal is fixedly arranged between two symmetrically arranged articulated modules; The spring drive mechanism is arranged inside the folding ladder frame mechanism and is used to realize the automatic unfolding of the folding ladder; The anti-slip reinforcement mechanism includes a claw assembly arranged at the top of the folding ladder frame mechanism and an anti-slip assembly arranged at the bottom of the folding ladder frame mechanism, which is used to reinforce and prevent slipping at both ends of the folding ladder during use and improve the stability of its support.

2. The portable urban rail rescue ladder according to claim 1, wherein The articulated module includes an inner plate, a middle plate and an outer plate. The inner plate and the outer plate are respectively hinged to both sides of the middle plate symmetrically; two inner plates, two middle plates and two outer plates among two adjacent articulated modules arranged vertically are respectively hinged through hinge assemblies.

3. The portable urban rail rescue ladder according to claim 2, wherein The hinge assembly includes first hinge plates and second hinge plates fixedly arranged at both ends of the inner plate, middle plate and outer plate. The first hinge plates and the second hinge plates are respectively arranged on two side surfaces of the inner plate, middle plate and outer plate; the first hinge plates on the inner plate, middle plate and outer plate are respectively rotatably connected to the second hinge plates on the adjacent inner plate, middle plate and outer plate through pins.

4. The portable urban rail rescue ladder according to claim 2, characterized in that, Both ends of the pedal are fixedly arranged on the side surfaces of two symmetrically arranged inner plates. The pedal is arranged at one-third of the length direction of two symmetrically arranged inner plates; the pedals arranged vertically are parallel to each other.

5. The portable urban rail rescue ladder according to claim 2, wherein, The spring drive mechanism is arranged between two symmetrically arranged articulated modules and includes two crossed springs. The ends of the two springs are respectively fixedly arranged on the side surfaces of two symmetrically arranged outer plates.

6. The portable urban rail rescue ladder according to claim 2, wherein, The claw assembly includes a travel guide rail fixedly arranged on the outer side surface of the outer plate at the top. A slider is slidably arranged inside the travel guide rail. A strip-shaped through hole is arranged on the side of the travel guide rail away from the outer plate. A bolt is threadedly connected through the strip-shaped through hole and the slider. A claw is fixedly arranged at one end of the bolt away from the travel guide rail; a torsion spring is sleeved on the circumferential outer side of the bolt between the claw and the slider.

7. The portable urban rail rescue ladder according to claim 2, characterized in that, The anti-slip assembly includes anti-slip pads fixedly arranged on the bottom surfaces of two outer plates at the bottom end of the folding ladder.

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