Railway vehicle downshift structure and door leaf system

Abstract

The utility model discloses a rail vehicle downshift structure in the field of rail vehicle door systems, and the rail vehicle downshift structure comprises a rubber strip body and a fixing plate, the rubber strip body and the fixing plate are arranged in a clamping area of the rubber strip body, and the two sides of the fixing plate are correspondingly attached to the inner wall of the clamping area. The rubber strip body and the fixing plate are fixed to the door leaf through a fastening assembly. One side of the rubber strip body obliquely extends to form a contact part, and when the rubber strip body is fixed to the fixing plate, the contact part is partially or completely exposed out of the side face of the door leaf; the contact part and the rubber strip body have the same flexibility, a door is opened after a train enters a platform, the contact part deforms after making contact with the platform at the moment, adaptive deformation is made according to platforms of different sizes, safe use of a train door is guaranteed, meanwhile, the size of a train body is allowed to be wider, and the transport capacity of the train is increased; and the clamping area on the rubber strip body is matched and fixed with the fixing plate, so that the air tightness of the vehicle body and the vehicle door after the plug-pull action is completed is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of urban rail vehicle door systems, and in particular to a rail vehicle lower gear structure and door leaf system. Background Art

[0002] Due to the construction time, long span, inconsistent design standards, settlement over long spans and other issues, the height and width of railway platforms on the same line are not uniform, which may cause collision with the platform when the sliding door is opened. The existing vehicle design must meet the highest and narrowest dimensions of all platforms at the same time, resulting in a certain degree of capacity waste and increased design costs. The airtightness of the car body and the door after the sliding action is completed is low, affecting the riding comfort of passengers when the train is running. Utility Model Content

[0003] The purpose of this application is to provide a rail vehicle lower gear strip and door leaf system to solve the defects of unreasonable rubber strip design in the prior art, which leads to insufficient vehicle carrying capacity and poor air tightness between the vehicle body and the door plug after the pulling action is completed.

[0004] To achieve the above objectives, this application is implemented using the following technical solutions:

[0005] In a first aspect, the present application discloses a rail vehicle lower gear structure fixed to a door leaf, comprising a rubber strip body and a fixing plate, wherein the rubber strip body is provided with a clamping area, the fixing plate is positioned in the clamping area of ​​the rubber strip body, and the two sides of the fixing plate correspond to the inner wall of the clamping area, the rubber strip body and the fixing plate are fixed to the door leaf via a fastening assembly;

[0006] A contact portion is obliquely extended from one side of the rubber strip body. When the rubber strip body is fixed to the fixing plate, the contact portion is partially or completely exposed from the edge of the door leaf.

[0007] According to a further solution of the present application, an outer clamping edge and an inner clamping edge are extended at intervals from the other side of the rubber strip body, a clamping area is formed between the outer clamping edge and the inner clamping edge, and the fixing plate is attached to the outer clamping edge and the inner clamping edge.

[0008] In a further solution, a positioning protrusion extends from the inner clamping edge and one side of the fixing plate, and a mounting cavity is provided inside the fixing plate. The positioning protrusion passes through the mounting opening of the fixing plate and is placed in the mounting cavity.

[0009] In a further solution, a flange is radially provided at one end of the positioning protrusion away from the inner layer clamping edge.

[0010] In a further embodiment, the positioning protrusion is provided with a hole for facilitating the positioning protrusion to be compressed by force.

[0011] According to a further solution of the present application, one end of the contact portion close to the door leaf abuts against the door leaf.

[0012] According to a further solution of the present application, the rail vehicle lower gear structure further comprises a lining plate, the lining plate is provided with a countersunk hole, and one end of the fastening assembly is placed in the countersunk hole.

[0013] In a second aspect, the present application discloses a door leaf system, which includes the above-mentioned rail vehicle lower gear structure.

[0014] The beneficial effects of this application are:

[0015] In this application, a contact portion exposed to the door leaf is provided at the bottom of the rubber strip body, which has the same flexibility as the rubber strip body. When the train opens the door after entering the platform, the contact portion is deformed after contacting the platform, and makes adaptive deformation according to the different sizes of platforms to ensure the safe use of the door, while allowing the body size to be wider, increasing the vehicle's carrying capacity; the clamping area and the fixing plate on the rubber strip body are fixed together to ensure the stability and sealing of the rubber strip body after fixation, and ensure the airtightness of the body and the door plug after the pulling action is completed.

[0016] The clamping edge of the rubber strip body is provided with a positioning protrusion, which is matched and fixed with the mounting opening of the fixing plate, so as to achieve the pre-installation effect of the rubber strip body and realize the fast and stable fixation of the final rubber strip body, which helps to improve production efficiency and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the lower gear structure of the rail vehicle in this application;

[0018] Figure 2 This is a schematic diagram of the state in which the rubber strip body of the lower gear structure of the railway vehicle in this application contacts the platform;

[0019] Figure 3 This is a schematic diagram of the contact state between the rubber strip body and the vehicle body in the lower gear structure of the railway vehicle in this application.

[0020] Among them: 1. Rubber strip body; 2. Fixing plate; 3. Lining plate; 4. Fastening assembly; 5. Door leaf; 11. Inner clamping edge; 12. Outer clamping edge. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only some embodiments of the present application, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use. Example 1

[0022] like Figure 1 As shown, in this embodiment, a rail vehicle lower gear structure is disclosed, which is mainly designed to adapt to platforms of different sizes. The lower gear structure includes a rubber strip body 1, a fixing plate 2 and a fastening assembly 4, wherein a contact portion is integrally formed at one end of the rubber strip body 1, and the contact portion and the rubber strip body 1 have the same flexibility. When the contact portion contacts obstacles of different sizes, it adapts by producing different deformations. A clamping area is provided at the other end of the rubber strip body 1, and the fixing plate 2 is fixed in the clamping area, and the relative inner walls of the clamping area are in contact with the corresponding side surfaces of the fixing plate 2, or can be squeezed into contact. The fastening assembly 4 is fixedly connected to the rubber strip body 1 and the fixing plate 2, and is also connected to the door leaf 5. In this embodiment, the rubber strip body 1 is fixed to the lower side of the door leaf 5, and ensures that all or most of the contact portion on the rubber strip body 1 is exposed to the edge surface of the door leaf 5. The cross-section of the contact portion in this embodiment is "L-shaped" and the long side of the contact portion has a certain inclination. The long side of the contact portion is close to the end of the door leaf 5 and is provided with a contact surface. During initial installation, the contact surface is tightly fitted to the door leaf 5.

[0023] In this embodiment, an outer clamping edge 12 and an inner clamping edge 11 are spaced apart and extended in parallel at the other end of the rubber strip body 1. The above-mentioned clamping area is formed between the outer clamping edge 12, the inner clamping edge 11 and the rubber strip body 1. The fixing plate 2 fits the outer clamping edge 12, the inner clamping edge 11, and the fastening assembly 4 locks the outer clamping edge 12, the inner clamping edge 11 and the fixing plate 2 to the door leaf 5. The locking fit of the outer clamping edge 12, the inner clamping edge 11 and the fixing plate 2 can improve the air tightness of the door system after the two door leaves 5 are closed, thereby ensuring the sound insulation when the vehicle is driving.

[0024] Continue to observe the attached Figure 1 The rubber strip body 1 in this embodiment can also be pre-fixed during installation. During manufacturing, one or more positioning protrusions are vertically extended on the side of the inner clamping edge 11 facing the outer clamping edge 12, and a mounting cavity is provided in the fixing plate 2. A through hole is provided on the side of the fixing plate 2 facing the inner clamping edge 11. The positioning protrusion enters the mounting cavity along the through hole and is fixed. At this time, the effect of pre-fixing the rubber strip body 1 can be achieved.

[0025] In some other embodiments, a flange is radially provided at one end of the positioning protrusion away from the side of the inner clamping edge 11. The material of this flange is the same as that of the rubber strip body 1. After the positioning protrusion enters the installation cavity of the fixed plate 2, it will reset and expand, playing the role of limiting and stopping retreat. The design is ingenious and easy to use. Considering that the positioning protrusion changes its volume through deformation, so that it can smoothly enter the installation cavity of the fixed plate 2, under normal circumstances, a hole is set inside the positioning protrusion when it is formed. This hole facilitates the compression of the positioning protrusion under force. On the other hand, it also saves materials and reduces manufacturing costs, killing two birds with one stone.

[0026] The fastening assembly 4 in this embodiment includes bolts, washers, etc., and a lining plate 3 is also provided on the side of the inner clamping edge 11 facing away from the door leaf 5. The surface of the lining plate 3 is provided with a countersunk hole. The bolts pass through the inner clamping edge 11, the fixing plate 2 and the outer clamping edge 12 of the countersunk hole and are fixed to the door leaf 5 by threads. At this time, the end of the bolt is hidden in the countersunk hole, which is beautiful and prevents the operator from accidentally scratching it during operation, thereby reducing the occurrence of accidents. Example 2

[0027] This embodiment provides a door leaf system, which includes the rail vehicle lower gear structure in the above-mentioned embodiment 1.

[0028] Specific use:

[0029] During installation, the rubber strip body 1 has two fixed edges: an inner clamping edge 11 and an outer clamping edge 12. Bolts are inserted through the lining plate 3, the fixing plate 2, and the outer clamping edge 12, and then installed on the door leaf 5. The inner clamping edge 11 is locked in the groove (through hole) of the fixing plate 2, while the outer clamping edge 12 is clamped between the fixing plate 2 and the door leaf 5.

[0030] As attached Figure 2 As shown, when the train arrives at the station and the door is opened, the rubber strip body 1 contacts the platform and deforms. The degree of deformation changes according to the size of the platform, allowing the door leaf 5 to continue to move toward the outside of the car body.

[0031] As attached Figure 3 As shown, when the train starts and the door is closing, the rubber strip body 1 contacts the car body under the action of the door leaf 5, and there is a certain amount of compression. The inner clamping edge 11, the outer clamping edge 12 and the fixing plate 2 are fixed, thereby improving the firm contact of the rubber strip body 1 with the door leaf 5, thereby realizing the sealing between the car body and the door during the operation of the train.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

Claims

1. A rail vehicle lower gear structure, fixed on a door leaf (5), characterized in that: It comprises a rubber strip body (1) and a fixing plate (2), wherein the rubber strip body (1) is provided with a clamping area, the fixing plate (2) is placed in the clamping area of ​​the rubber strip body (1), and opposite sides of the fixing plate (2) correspond to the inner walls of the clamping area, and the rubber strip body (1) and the fixing plate (2) are fixed to the door leaf (5) via a fastening assembly (4); A contact portion is obliquely extended from one side of the rubber strip body (1); when the rubber strip body (1) is fixed to the fixing plate (2), the contact portion is partially or completely exposed from the edge of the door leaf (5).

2. The rail vehicle lower gear structure according to claim 1, characterized in that: An outer layer clamping edge (12) and an inner layer clamping edge (11) are extended at intervals on the other side of the rubber strip body (1), and a clamping area is formed between the outer layer clamping edge (12) and the inner layer clamping edge (11), and the fixing plate (2) is in contact with the outer layer clamping edge (12) and the inner layer clamping edge (11).

3. The rail vehicle lower gear structure according to claim 2, characterized in that: A positioning protrusion extends from the inner layer clamping edge (11) and one side of the fixing plate (2); a mounting cavity is provided inside the fixing plate (2); and the positioning protrusion passes through the mounting opening of the fixing plate (2) and is placed in the mounting cavity.

4. The rail vehicle lower gear structure according to claim 3, characterized in that: An end of the positioning protrusion away from the inner layer clamping edge (11) is radially provided with a flange.

5. The rail vehicle lower gear structure according to claim 3, characterized in that: The positioning protrusion is provided with a hole in it to facilitate the positioning protrusion to be compressed by force.

6. The rail vehicle lower gear structure according to claim 1, characterized in that: One end of the contact portion close to the door leaf (5) abuts against the door leaf (5).

7. The rail vehicle lower gear structure according to claim 1, characterized in that: The rail vehicle lower gear structure further comprises a lining plate (3), the lining plate (3) being provided with a countersunk hole, and one end of the fastening assembly (4) being placed in the countersunk hole.

8. A door leaf system, characterized in that: The invention comprises the rail vehicle lower gear structure as described in any one of claims 1 to 7.

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