Evacuation pedal device for rail transit

Abstract

The utility model discloses an evacuation pedal device for rail transit in the field of vehicle ramp systems. The evacuation pedal device comprises a rack, and an elastic telescopic piece is movably mounted on the rack; the folding pedals are connected through hinge assemblies, one sides of the folding pedals are movably installed on the rack, elastic telescopic parts are movably installed between the hinge assemblies and the rack, the folding pedals have a first state in which the folding pedals are mutually folded and a second state in which the folding pedals are mutually unfolded in a gradient mode, and the elastic telescopic parts work; the plurality of folding pedals are switched from the first state to the second state, and the folding pedals are stressed to switch from the second state to the first state; the folding performance of the folding pedals is achieved through the hinge assemblies, the folding pedals only need to be slightly stirred in the using process, under pushing of the elastic telescopic pieces, the whole folding pedal structure is unfolded in cooperation with gravity to achieve the first state, the releasing speed is high, complex power mechanisms such as a motor do not need to be used, and operation is easy.

Description

Technical Field

[0001] This application relates to the technical field of vehicle ramp systems, and particularly to an evacuation pedal device for rail transit. Background Art

[0002] In the current rail transit train system, an emergency escape device needs to be added at the passenger compartment door. When the train is in danger, the emergency escape device can increase the speed and efficiency of passengers' safe evacuation, and prevent unnecessary injuries caused by passengers jumping out of the window. Most of the existing emergency escape devices are driven by electricity. For example, a motor drives a gear to lower the pedal. The cost of this product is relatively high, the structure is complex, and when there is a lack or insufficiency of electricity, it is very difficult to operate, affecting the safety of personnel. To ensure the safety of personnel, how to design a quickly usable pedal device is a problem that designers need to solve. Summary of the Utility Model

[0003] The purpose of this application is to provide an evacuation pedal device for rail transit to solve the defects in the prior art that the existing emergency escape device has a complex structure and is difficult to operate manually.

[0004] To achieve the above purpose, the following technical solutions are adopted in this application:

[0005] An evacuation pedal device for rail transit, which includes:

[0006] A frame, on which an elastic telescopic member is movably installed;

[0007] A plurality of folding pedals, the plurality of folding pedals are connected by a hinge assembly, and one side is movably installed on the frame. An elastic telescopic member is movably installed between the hinge assembly and the frame. The plurality of folding pedals have a first state of being folded with each other and a second state of being gradually unfolded with each other. The elastic telescopic member works to enable the plurality of folding pedals to switch between the first state and the second state, and the folding pedals are forced to switch between the second state and the first state.

[0008] A further solution of this application is that the hinge assembly includes a plurality of sequentially hinged cross hinge bodies, and the plurality of folding pedals are fixedly corresponding to the plurality of cross hinge bodies one by one. The cross hinge bodies are deformed to enable the plurality of folding pedals to switch back and forth between the first state and the second state.

[0009] A further solution is that the cross hinge body includes two first connecting rods, the middle parts of the two first connecting rods are rotatably connected, and the ends of the first connecting rods in each cross hinge body are sequentially rotatably connected.

[0010] According to a further solution of the present application, a driving rod is rotatably mounted on the base of the frame via a vertical rod, the driving rod is staggered with the frame, a second connecting rod is rotatably mounted on a side of the hinge assembly close to the frame, a sliding groove is provided on the driving rod along the length direction of the driving rod, and the second connecting rod is slidably mounted in the sliding groove via a pin shaft.

[0011] According to a further solution of the present application, there are two racks, the two racks are arranged in parallel and opposite to each other, and a plurality of folding pedals are installed between the two racks through a hinge assembly.

[0012] In a further solution, when the plurality of folding pedals are in the first state, the plurality of folding pedals are placed between the two racks;

[0013] When the folding pedals are in the second state, the folding pedals away from the frame are located lower than the frame.

[0014] According to a further solution of the present application, the folding pedal is a hollow aluminum plate structure.

[0015] In a further solution, the elastic telescopic member is a gas spring.

[0016] The beneficial effects of this application are:

[0017] In the present application, the folding performance of several folding pedals is achieved through a hinge assembly. When in use, the folding pedal only needs to be slightly moved. Under the push of the elastic telescopic member, the entire folding pedal structure will cooperate with gravity to unfold to achieve the first state. The release speed is fast, and there is no need to use complex power mechanisms such as motors, and the operation is simple. When folding, the unfolding direction of the closed folding pedal (the second state of the folding pedal) and the force direction of the elastic telescopic member have an angle, which limits the resetting of the elastic telescopic member. The device is simple, practical, easy to operate, and ensures the safe evacuation of personnel in emergencies.

[0018] In addition, the cross hinge body is formed by rotating and connecting the middle parts of the two first connecting rods. When the folding pedal is in the second state, the two first connecting rods are arranged in a cross, which has a strong structural strength and changes the bearing capacity, thereby ensuring the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the evacuation pedal device after it is unfolded in the embodiment of the present application;

[0020] Figure 2 This is a structural schematic diagram of a partial position of the evacuation pedal device after it is unfolded in an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the structure of the evacuation pedal device after folding in the embodiment of the present application.

[0022] Wherein: 1. Frame; 2. Elastic telescopic member; 3. Folding pedal; 4. First connecting rod; 5. Driving rod; 51. Chute; 6. Second connecting rod; 7. Roller assembly. Specific embodiments

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present application and its application or use.

[0024] As Figure 1 shown, this embodiment discloses an evacuation pedal device for rail transit, which includes two relatively parallel frames 1. A plurality of folding pedals are arranged between the two frames 1. The folding pedals are connected by a hinge assembly. An elastic telescopic member 2 is rotatably installed between one end of the hinge assembly and the frame 1. The folding pedal closest to the frame 1 is rotatably connected to the frame 1. Among them, a plurality of folding pedals 3 and the hinge assembly form a whole to constitute a pedal assembly. The pedal assembly has a first state of folding with each other and a second state of gradually unfolding with each other. When the elastic telescopic member 2 works, it enables the plurality of folding pedal assemblies to switch from the first state to the second state, and the folding pedal assembly is forced to switch from the second state to the first state; when the elastic telescopic member 2 is installed, rollers at both ends are used to achieve rotation. Here, a pin shaft is used to cooperate with an ear plate to install the elastic telescopic member 2, and a wear-resistant pad can be added if necessary.

[0025] Continue to observe the attached Figure 1 drawing. In this embodiment, the hinge assembly includes a plurality of sequentially hinged cross hinge bodies. A plurality of folding pedals 3 are fixedly connected to the plurality of cross hinge bodies one by one. When the cross hinge bodies deform, the plurality of folding pedals 3 are switched back and forth between the first state and the second state. Usually, the cross hinge bodies are realized by two first connecting rods 4. The middle parts of the two first connecting rods 4 are rotatably connected. The ends of the first connecting rods 4 in the plurality of cross hinge bodies are sequentially and rotatably connected in sequence. When the plurality of folding pedals 3 are unfolded, the two first connecting rods 4 present a positive cross shape, which can improve the overall structural strength of the device and, to a certain extent, enhance the bearing capacity.

[0026] Observe the attached Figure 2, in this embodiment, a second connecting rod 6 is rotatably connected to the first connecting rod 4 near the upper part of the frame 1. A short rod is rotatably connected between the second connecting rod 6 and the adjacent lower first connecting rod 4. In addition, a driving rod 5 is rotatably connected to the bottom plate of the frame 1 through a vertical rod. A chute 51 arranged along the length direction of the driving rod 5 is provided on the rod body of the driving rod 5. The second connecting rod 6 is slidably installed in the chute 51 through a pin shaft. In another embodiment, a receiving groove is opened on the side wall of the chute 51, and a roller is installed in the receiving groove. The roller is connected to the second connecting rod 6 through a rotating shaft. In this way, the second connecting rod 6 moves more stably, but the manufacturing cost is relatively high. In actual manufacturing, a suitable manufacturing method is selected according to the actual situation.

[0027] Reference appendix Figure 1 and 3 , in this embodiment, the evacuation pedal device is unfolded into a stepped shape. When the pedal assembly is in the first state, several folding pedals 3 are placed between the two frames 1;

[0028] When the pedal assembly is in the second state, the position of the folding pedal 3 far from the frame 1 is lower than the frame 1. The length of the hinge assembly after unfolding is usually designed to be 3-4 meters, and the adjustment range will be adjusted in actual situations. In another embodiment, this device is used in the escape passage of a floor. In this case, the actual size of the hinge assembly is necessarily too long, and appropriate support members need to be added to the cross hinge body when necessary to meet the support strength.

[0029] The folding pedal 3 in this embodiment is made of aluminum alloy material with an affordable price, small mass, and moderate structural strength. After manufacturing, it forms a hollow aluminum plate; the elastic telescopic member 2 in this embodiment is a gas spring. The gas spring has significant advantages compared with ordinary springs: relatively slow speed, small change in dynamic force (generally within 1:1.2), and easy to control; strictly speaking, ordinary springs can also be used as the elastic telescopic member 2, but the change in its elasticity is large and not easy to control.

[0030] Specific use:

[0031] First, fix two frames 1 at the escape opening of the train. After folding the pedal assembly, it is installed between the frames 1 through the elastic telescopic member 2 and the driving rod 5. In this state, since there is an angle between the force application direction of the elastic telescopic member 2 and the extension direction of the pedal assembly, the device has a self-locking effect at this time. To ensure absolute safety, positioning holes can be opened on the vehicle body, and bolts can be used to limit the folded pedal assembly to ensure safety. When in use, the passengers in the car need to unlock and open the evacuation door according to the prompt, and manually push the folding pedal 3. At this time, the folding pedal 3 automatically unfolds under the action of the gas spring, and the passengers evacuate quickly in turn; when recycling, manually fold multiple folding pedals 3, and then turn them up 90° (that is, form a dead angle and the gas spring is locked), complete the locking state, and close the emergency door.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific circumstances.

Claims

1. An evacuation pedal device for rail transit, characterized in that: include: A frame (1), wherein an elastic telescopic member (2) is movably mounted on the frame (1); A plurality of folding pedals (3), wherein the plurality of folding pedals (3) are connected via a hinge assembly and one side is movably mounted on the frame (1); an elastic telescopic member (2) is movably mounted between the hinge assembly and the frame (1); the plurality of folding pedals (3) have a first state of being mutually folded and a second state of being mutually gradiently unfolded; the elastic telescopic member (2) works to enable the plurality of folding pedals (3) to switch from the first state to the second state; and the folding pedals (3) are subjected to force to switch from the second state to the first state.

2. The rail transit evacuation pedal device according to claim 1, characterized in that: The hinge assembly comprises a plurality of sequentially hinged cross hinges, a plurality of the folding pedals (3) are fixed in one-to-one correspondence with the plurality of the cross hinges, and the cross hinges are deformed so that the plurality of the folding pedals (3) can switch back and forth between a first state and a second state.

3. The rail transit evacuation pedal device according to claim 2, characterized in that: The cross hinge body comprises two first connecting rods (4), the middle parts of the two first connecting rods (4) are rotatably connected, and the ends of the first connecting rods (4) in the plurality of cross hinge bodies are rotatably connected in sequence.

4. The rail transit evacuation pedal device according to claim 1, characterized in that: A driving rod (5) is rotatably mounted on the base of the frame (1) via a vertical rod; the driving rod (5) is staggered with the frame (1); a second connecting rod (6) is rotatably mounted on a side of the hinge assembly close to the frame (1); a sliding groove (51) is provided on the driving rod (5) along the length direction of the driving rod (5); and the second connecting rod (6) is slidably mounted in the sliding groove (51) via a pin shaft.

5. The rail transit evacuation pedal device according to claim 1, characterized in that: There are two racks (1), the two racks (1) are arranged in parallel and opposite to each other, and a plurality of folding pedals (3) are installed between the two racks (1) via hinged components.

6. The rail transit evacuation pedal device according to claim 5, characterized in that: When the plurality of folding pedals (3) are in the first state, the plurality of folding pedals (3) are placed between the two racks (1); When the plurality of folding pedals (3) are in the second state, the position of the folding pedals (3) away from the frame (1) is lower than the frame (1).

7. The rail transit evacuation pedal device according to claim 1, characterized in that: The folding pedal (3) is a hollow aluminum plate structure.

8. The rail transit evacuation pedal device according to any one of claims 1 to 7, characterized in that: The elastic telescopic member (2) is a gas spring.

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