Door plate of railway vehicle door

Abstract

The utility model discloses a door plate of a railway vehicle door, which comprises an inner skin, an outer skin and a door plate frame which are formed by metal stamping and processed by laser welding, the inner skin is fixed on one side of the door plate frame, the outer skin is fixed on the other side of the door plate frame, the outer skin is provided with an outer skin window, the inner skin is provided with an inner skin window, and the inner skin is provided with an inner skin window. The polyurethane foam is filled between the inner skin and the outer skin in a foaming mode, compared with a door plate body of a traditional railway vehicle door made of an aluminum alloy material and a special profile, the interior of the door plate is filled with aluminum honeycombs, and the metal plate stamping technology is more suitable for batch production, so that the production cost is reduced in the aspects of materials and technology, and the overall weight of the door plate is reduced; and the overall strength of the door plate can still meet the working requirement, and the production procedures are greatly reduced by adopting a connection processing mode of laser welding and riveting.

Description

Technical Field

[0001] The utility model relates to the field of rail vehicle doors, in particular to a rail vehicle door panel. Background Art

[0002] With the rapid development of rail transit in my country, more and more rail vehicles are put into operation, and the requirements for the safety and stability of rail vehicle operation are getting higher and higher. Rail vehicle doors are one of the key components of rail vehicles, which play an important role in ensuring the heat insulation, sound insulation and safe operation of the vehicle. Its performance parameters directly determine the running speed, running safety and comfort of the train.

[0003] At present, most of the door panels of rail vehicle doors on the market are made of aluminum alloy materials and special profiles, and are completed through complex processes such as curing and bonding. The middle filler of the door panel is aluminum honeycomb, which has a relatively complicated and bulky structure and a high production cost, and is not suitable for large-scale production and application. Utility Model Content

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a rail vehicle door panel with reduced cost and weight.

[0005] Technical solution: The utility model discloses a rail vehicle door panel, comprising: a door panel frame, an outer skin, and an inner skin; the outer skin is installed on one side of the door panel frame, and an outer skin window is opened on the outer skin; the inner skin is installed on the other side of the door panel frame opposite to the outer skin, an inner and outer skin connecting plate is fixed on the inner skin, the inner skin and the outer skin are fixedly connected by the inner and outer skin connecting plate, and an inner skin window corresponding to the outer skin window is opened on the inner skin; the outer skin and the inner skin are both made of metal stamping sheet metal, and the edge of the outer skin forms the outline of the door panel.

[0006] Furthermore, polyurethane foam is filled between the inner skin and the outer skin.

[0007] Furthermore, an outer skin window patch is welded on the outer skin window, and an inner skin window patch is welded on the inner skin window.

[0008] Furthermore, an isolation lock box is provided on the door panel frame.

[0009] Furthermore, the door panel frame is connected and fixed to the outer skin and the inner skin by laser welding.

[0010] Furthermore, a buckle handle is provided on the inner skin.

[0011] Furthermore, a finger guard rubber strip seat is provided on the edge of the rail vehicle door panel buckle side.

[0012] Furthermore, a sealing strip mounting seat is provided on the outer edge of the rail vehicle door panel where the finger guard rubber strip seat is not provided.

[0013] Beneficial effects: The door panel structure proposed by the utility model is installed on the door panel frame by adopting the inner and outer skins formed by integral stamping, and the internal filling of the door panel is filled with polyurethane foam. Compared with the traditional rail vehicle door panel main body using aluminum alloy materials and special profiles, and the internal filling method of aluminum honeycomb, the sheet metal stamping technology is more suitable for mass production. When the contour of the car body changes, it is only necessary to change the shape of the inner and outer skins to match the car body to meet the needs of different car bodies. At the same time, the production cost is reduced in terms of materials and processes, the overall weight of the door panel is reduced, and the overall strength of the door panel is not reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the general assembly of a rail vehicle door panel.

[0015] Figure 2 yes Figure 1 Schematic diagram of the AA section.

[0016] Figure 3 It is a schematic diagram of a door panel frame of the present utility model.

[0017] Figure 4 It is a schematic diagram of the outer skin of the utility model.

[0018] Figure 5 It is a schematic diagram of the inner skin of the utility model.

[0019] Figure 6 It is a cross-sectional view of the inner skin of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations.

[0021] Example 1

[0022] Please refer to Figure 1-5 As shown, this embodiment provides a rail vehicle door panel, including a door panel frame 1, an outer skin 2, and an inner skin 3. The outer skin 2 is installed on one side of the door panel frame 1, and its outer side surface matches the contour of the vehicle body. An outer skin window 21 is opened on the outer skin 2; the inner skin 3 is installed on the other side of the door panel frame 1 opposite to the outer skin 2, and its outer side surface matches the contour of the vehicle body. An inner skin window 31 corresponding to the outer skin window 21 is opened on the inner skin 3, and a buckle 4 is installed on the inner skin 3. The door panel frame 1 and the inner skin 2, the outer skin 3 and the buckle 4 are all connected by laser welding.

[0023] See also Figure 2As shown, in this embodiment, polyurethane foam 5 is filled between the outer skin 2 and the inner skin 3, and at the same time, a finger guard rubber strip seat 6 is provided on the side of the rail vehicle door panel where the buckle 4 is installed.

[0024] See also Figure 3 As shown, the door panel frame 1 includes an upper block welding piece 11, a rear block welding piece 12, a front block welding piece 13, two mounting plate fixing seat welding pieces 14, a window frame lower block welding piece 15, a lower guide rail mounting beam 16 and an isolation lock box 17; the upper block welding piece 11, the lower guide rail mounting beam 16, the rear block welding piece 12 and the front block welding piece 13 are fixedly connected in pairs to form a rectangular frame, wherein the upper block welding piece 11 and the lower guide rail mounting beam 16 are parallel, and the rear block welding piece 12, the front block welding piece 13 are parallel to each other. The window frame lower block welding piece 15 is fixedly arranged between the rear block welding piece 12 and the front block welding piece 13 and is parallel to the upper block welding piece 11. A front lower middle reinforcing rib 18 is connected between the window frame lower block welding piece 15 and the lower guide rail mounting beam 16. The mounting plate fixing seat welding piece 14 and the isolation lock box 17 are fixed on the rear block welding piece 12. The isolation lock box 17 is reinforced by a lock box reinforcement strip 19 connecting the rear block welding piece 12 and the front lower middle reinforcing rib 18.

[0025] In this embodiment, the upper gear welding part 11 is stamped from 1.2mm thin steel plate and welded with 3 M6 three-point welding nuts; the rear gear welding part 12, the front gear welding part 13, the window frame lower gear welding part 15, the front lower middle reinforcing rib 18 and the lock box reinforcement strip 19 are all stamped from 0.7mm thin steel plate, the lower guide rail mounting beam 16 is stamped from 1.2mm thin steel plate, the mounting plate fixing seat welding part 14 is stamped from 1.5mm thin steel plate and welded with 2 M6 three-point welding nuts, and the isolation lock box 17 is stamped from 1.2mm thin steel plate, and the above-mentioned components are all connected by laser welding.

[0026] See also Figure 4 As shown, outer skin window patches 22 are respectively fixed to the four inner corners of the outer skin window 21 .

[0027] In this embodiment, the outer skin 2 and the outer skin window patch 22 are both stamped products made of 0.7 mm thin steel plates and are connected together by laser welding.

[0028] See also Figure 1 , Figure 5 and Figure 6As shown, inner skin window patches 32 are fixed to the four inner corners of the inner skin window 31 respectively, holes matching with the buckle 4, the mounting plate fixing seat welding part 14 and the isolation lock box 17 are opened on the inner skin 3, and inner and outer skin connecting plates 33 are fixed under the inner skin window 31. The inner skin 3 and the outer skin 2 are connected through the inner and outer skin connecting plates 33. A lower stop 34 is provided at the lower end of the inner skin 3, and a nut reinforcement plate 35 is provided on one side of the lower stop 34. Two M8 nuts 36 are welded on the nut reinforcement plate 35. A first inner skin corner patch 37 and a second inner skin corner patch 38 are fixed to the edge of the inner skin 3. Except for the side where the buckle 4 is installed, the other three side edges of the inner skin 3 are all provided with sealing strip mounting seats 39.

[0029] In this embodiment, the inner skin 3, the inner skin window patch 32, the lower stop 34, the first inner skin corner patch 37, and the second inner skin corner patch 38 are all stamped from 0.5 mm thin steel plates, the inner and outer skin connecting plates 33 and the sealing strip mounting seat 39 are stamped from 0.7 mm thin steel plates, and the nut reinforcement plate 35 is stamped from 1.2 mm steel plates. The above components are connected by laser welding.

[0030] The installation process of a rail vehicle door panel described in this embodiment is as follows: after laser welding the door panel frame 1, outer skin 2, inner skin 3, and buckle 4, rivets and screws are assembled around the window of the door panel (composed of the outer skin window 21 and the inner skin window 31) and the connection between the door panel frame 1 and the inner skin 3, and foaming is performed through the installation hole of the finger guard rubber strip seat 6 installed on the door panel. When the polyurethane foam 5 fills the gap, the finger guard rubber strip seat 6 is finally riveted to the door panel to complete the overall assembly of the door panel. After installing glass / plexiglass in the window, installing the sealing strip on the sealing strip installation seat 39, and installing the finger guard rubber strip on the finger guard rubber strip seat 6, the door panel can enter the vehicle body installation process.

[0031] The present embodiment provides a rail vehicle door panel, in which all components are made of stamped sheet metal parts, which are then integrated by laser welding and riveting. The interior is filled with polyurethane foam, which greatly reduces the production cost and the overall weight of the door panel. The strength can still meet work requirements, and the production process is reduced, making it suitable for mass production.

Claims

1. A rail vehicle door panel, characterized in that: include: Door panel frame (1), outer skin (2), inner skin (3); The outer skin (2) is mounted on one side of the door panel frame (1), and an outer skin window (21) is formed on the outer skin (2); the inner skin (3) is mounted on the other side of the door panel frame (1) opposite to the outer skin (2), and an inner and outer skin connecting plate (33) is fixed on the inner skin (3); the inner skin (3) and the outer skin (2) are fixedly connected via the inner and outer skin connecting plate (33), and an inner skin window (31) corresponding to the outer skin window (21) is formed on the inner skin (3); the outer skin (2) and the inner skin (3) are both made of metal stamping sheet metal, and the edge of the outer skin (2) forms the outline of the door panel.

2. The rail vehicle door panel according to claim 1, characterized in that: Polyurethane foam (5) is filled between the inner skin (3) and the outer skin (2).

3. The rail vehicle door panel according to claim 1, characterized in that: An outer skin window patch (22) is welded to the outer skin window (21), and an inner skin window patch (32) is welded to the inner skin window (31).

4. The rail vehicle door panel according to claim 1, characterized in that: An isolation lock box (17) is provided on the door panel frame (1).

5. The rail vehicle door panel according to claim 1, characterized in that: The door panel frame (1) is connected and fixed to the outer skin (2) and the inner skin (3) by laser welding.

6. The rail vehicle door panel according to claim 1, characterized in that: The inner skin (3) is provided with a buckle (4).

7. The rail vehicle door panel according to claim 6, characterized in that: The rail vehicle door panel is provided with a finger-protecting rubber strip seat (6) on the edge of one side where the buckle (4) is provided.

8. The rail vehicle door panel according to claim 7, characterized in that: The outer edge of the rail vehicle door panel where the finger-guard rubber strip seat (6) is not provided is provided with a sealing strip mounting seat (39).

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