Emergency evacuation door opening mechanism and rail vehicle

Abstract

The utility model relates to a rail transit vehicle emergency evacuation door, in particular to an emergency evacuation door opening mechanism and a rail vehicle, the emergency evacuation door opening mechanism comprises a vehicle body and a pushing assembly (2) used for manually opening an emergency evacuation door, an electric push rod (5) is installed between the vehicle body and the pushing assembly, one end of the electric push rod is connected with the vehicle body, and the other end of the electric push rod is connected with the rail vehicle. And the other end is connected with the pushing assembly. A first travel switch (8) used for providing an emergency evacuation door opening in-place signal and a second travel switch (9) used for providing an emergency evacuation door closing in-place signal are installed on the vehicle body, a sliding groove (7) is installed between the first travel switch and the second travel switch, and one end of a sliding rod (6) is connected to the sliding groove in a sliding mode. The other end of the sliding rod is connected with the pushing assembly. The emergency evacuation door of the railway vehicle can be electrically opened, the opening operation time of the emergency evacuation door is saved, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to an emergency evacuation door for a rail transit vehicle, in particular to an emergency evacuation door opening mechanism and a rail vehicle. Background Art

[0002] The upward-flipping evacuation door in the rail vehicle evacuation door system is generally opened manually, that is, the door leaf of the upward-flipping evacuation door is flipped upward by manpower, and then the ramp is opened. When the door leaf is very heavy (more than 200kg), it requires a lot of external force to open the door leaf manually, so it is necessary to design an auxiliary and labor-saving emergency evacuation door opening mechanism.

[0003] Chinese patent CN201710826456.7 discloses an emergency door opening mechanism, which is an auxiliary device for manually opening the flip-up evacuation door leaf. Although it realizes the labor-saving operation of manually opening the flip-up evacuation door leaf, it has problems such as the need for human assistance during the operation and the long operation time.

[0004] This patent adds an electric device based on the above patent, so that the upward-flipping evacuation door can be opened manually or electrically. When the electric function is used, it saves operation time, does not require human intervention, and reduces the difficulty of operation. Utility Model Content

[0005] The technical problem to be solved by the utility model is that, in view of the deficiency that the door leaf of the existing large-opening evacuation door of the rail vehicle is opened manually, the utility model provides an emergency evacuation door opening mechanism and a rail vehicle which can save operation time, do not require human intervention, and reduce the difficulty of operation.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An emergency door opening mechanism comprises a vehicle body and a pushing assembly for manually opening the emergency door, wherein an electric push rod is installed between the vehicle body and the pushing assembly, wherein one end of the electric push rod is connected to the vehicle body, and the other end is connected to the pushing assembly.

[0008] The utility model installs an electric push rod between the vehicle body and the pushing assembly, and connects one end of the electric push rod to the vehicle body and the other end to the pushing assembly, so that the pushing assembly can be pushed to rotate by the electric push rod, thereby realizing the electric opening of the emergency evacuation door of the rail vehicle without human intervention, saving the operation time of opening the emergency evacuation door and reducing the operation difficulty of opening the emergency evacuation door.

[0009] Preferably, an opening and closing position limiting device is provided inside the electric push rod, and a redundant protection device is provided outside the electric push rod to prevent the motor of the electric push rod from burning out.

[0010] Preferably, the in-position redundant protection device includes a first travel switch for providing an emergency door open in-position signal and a second travel switch for providing an emergency door closed in-position signal. A slide groove is installed between the first travel switch and the second travel switch. One end of a sliding rod is slidably connected to the slide groove, and the other end of the sliding rod is connected to the pushing assembly. The signal output ends of the first travel switch and the second travel switch are connected to the control circuit of the electric push rod to realize automatic power-off of the electric push rod and prevent the motor of the electric push rod from burning.

[0011] Preferably, the rated voltage of the electric push rod is 24V, and the standard stroke length is 300mm.

[0012] Preferably, a support seat is provided on the vehicle body, one end of the pushing assembly abuts against the emergency evacuation door, one end of the electric push rod is connected to the support seat, and the other end is connected to the abutting end of the pushing assembly for the emergency evacuation door.

[0013] Preferably, a support shaft is provided on the upper part of the support seat, one end of the pushing assembly is hinged to the support shaft, and the other end is in contact with the emergency door, and one end of the driving mechanism is hinged to the support shaft. In this way, when the electric opening fails, the driving mechanism can be used to push the pushing assembly to rotate, thereby realizing the manual opening of the rail vehicle emergency door.

[0014] Based on the same inventive concept, the utility model also provides a rail vehicle, which includes the emergency evacuation door opening mechanism.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] a) The utility model realizes the electric opening of the flip-up rail vehicle emergency evacuation door;

[0017] b) The utility model electric push rod is provided with an opening and closing position limit device inside, and an electric push rod position redundant protection device is provided outside to prevent the motor from burning;

[0018] c) The utility model can reduce the opening time of the emergency evacuation door and is particularly suitable for use with emergency evacuation doors with large openings;

[0019] d) The utility model is compatible with the existing mature manual opening mode, ensuring that the evacuation door can be operated and opened when a power failure occurs in the rail vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the position of the manual / electric door opening mechanism in the fully open evacuation door system of rail transit vehicles;

[0022] Figure 2 This is a schematic diagram of the structure of the door opening mechanism for an emergency evacuation door of the utility model;

[0023] Figure 3 This is a schematic diagram of the door opening state of the emergency evacuation door opening mechanism of the utility model;

[0024] Figure 4 It is a schematic diagram of the closed door state of the door opening mechanism of the utility model for emergency evacuation door. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0026] For the convenience of description, the relative position relationship of each component, such as up, down, left, right, etc., is described according to the layout direction of the drawings in the specification, and does not limit the structure of this patent.

[0027] See also Figure 1 The utility model of rail vehicle emergency evacuation door opening mechanism is a part of the full-open evacuation door system. Its installation position is shown in Figure 1 The circle part in .

[0028] like Figure 2 As shown, an embodiment of the rail vehicle emergency evacuation door opening mechanism of the utility model includes a support seat 1, a pushing assembly 2, a support shaft 3, a driving mechanism 4, an electric push rod 5, a slide rod 6, a slide slot 7, a first travel switch 8, and a second travel switch 9.

[0029] The upper part of the support seat 1 is provided with a support shaft 3 for supporting the rotation of the push assembly 2 and the driving mechanism 4. One end of the push assembly 2 is connected to the support shaft 3, and the other end is in contact with the emergency door to open the emergency door by rotating the push assembly 2. One end of the driving mechanism 4 is connected to the support shaft 3, and the push assembly 2 can be rotated by the driving mechanism 4. Here, the structure in which the driving mechanism 4 drives the push assembly 2 to rotate, thereby opening the emergency door, is a prior art, such as the relevant structure in patent CN201710826456.7.

[0030] Electric push rod 5: an electric push rod driven by 24V current. Related parameters: rated voltage: 24V, standard stroke length 300. One end of the electric push rod 5 is connected to the support seat 1, and the other end is connected to the push assembly 2. The inside of the electric push rod 5 is provided with an opening and closing position limit device (not shown in the figure), and the outside of the electric push rod 5 is provided with an in-position redundant protection device. The in-position redundant protection device includes a slide bar 6, a slide slot 7, a first travel switch 8, and a second travel switch 9.

[0031] Sliding rod 6: used to trigger the first travel switch 8 and the second travel switch 9, and is composed of a connecting rod and a roller.

[0032] The slide groove 7 is a moving track of the slide rod 6. One end of the slide rod 6 is connected to the middle part of the push assembly 2, and the other end is slidably mounted on the slide groove 7.

[0033] The first travel switch 8 provides the electric push rod 5 with a signal indicating that the emergency door has been fully opened.

[0034] The second travel switch 9 provides the electric push rod 5 with a signal indicating that the emergency door has been fully closed.

[0035] When the utility model is used, the electric push rod 5 includes two action processes:

[0036] Open action: Figure 3 As shown, when the electric push rod 5 receives the door opening signal and is energized, the electric push rod 5 begins to extend, driving the push assembly 2 to rotate counterclockwise, and opens the emergency door through the push assembly 2. At the same time, the slide bar 6 slides along the slide slot 7 as the push assembly 2 rotates. After the emergency door is opened, the slide bar 6 slides to the first travel switch 8, so that the electric push rod 5 is powered off. In this embodiment, the opening time of the electric push rod 5 is 10S.

[0037] Recycling action: Figure 4 As shown, when the emergency door needs to be closed, the electric push rod 5 receives the door closing signal and is energized, and the electric push rod 5 begins to retract, while driving the push assembly 2 and the emergency door to rotate clockwise, so that the emergency door is closed. At the same time, the slide bar 6 slides along the slide slot 7 toward the second travel switch 9 as the push assembly 2 rotates. After the emergency door is closed, the slide bar 6 slides to the second travel switch 9, so that the electric push rod 5 is powered off.

[0038] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can make many possible changes and modifications to the technical scheme of the utility model by using the technical content disclosed above without departing from the scope of the technical scheme of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical scheme of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. An emergency door opening mechanism, comprising a vehicle body and a pushing assembly (2) for manually opening the emergency door, characterized in that: An electric push rod (5) is installed between the vehicle body and the pushing assembly, one end of the electric push rod is connected to the vehicle body, and the other end is connected to the pushing assembly.

2. The emergency door opening mechanism according to claim 1, characterized in that: The interior of the electric push rod is provided with an opening and closing position limiting device, and the exterior of the electric push rod is provided with an in-position redundant protection device.

3. The emergency door opening mechanism according to claim 2, characterized in that: The in-position redundant protection device comprises a first travel switch (8) for providing an emergency door open in-position signal and a second travel switch (9) for providing an emergency door closed in-position signal, a slide groove (7) is installed between the first travel switch and the second travel switch, one end of a slide rod (6) is slidably connected to the slide groove, the other end of the slide rod is connected to the pushing component, and the signal output ends of the first travel switch and the second travel switch are connected to the control circuit of the electric push rod.

4. The emergency door opening mechanism according to claim 1, characterized in that: The rated voltage of the electric push rod is 24V, and the standard stroke length is 300mm.

5. The emergency door opening mechanism according to claim 1, characterized in that: A support seat (1) is arranged on the vehicle body, one end of the pushing component abuts against the emergency evacuation door, one end of the electric push rod is connected to the support seat, and the other end is connected to the abutting end of the pushing component against the emergency evacuation door.

6. The emergency door opening mechanism according to claim 5, characterized in that: A support shaft (3) is provided on the upper portion of the support seat (1), one end of the pushing component is hinged to the support shaft, the other end is in contact with the emergency evacuation door, and one end of the driving mechanism (4) is hinged on the support shaft.

7. A rail vehicle, characterized in that It comprises the emergency door opening mechanism according to any one of claims 1 to 6.

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