Obstacle-avoiding sealing device and method for double-opening sliding-plug door of railway vehicle

Abstract

The invention discloses an obstacle avoidance sealing device and method for a double-opening sliding plug door of a railway vehicle in the field of railway vehicle door systems, the device comprises a left obstacle avoidance sealing strip and a right obstacle avoidance sealing strip, the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are the same in structure, and complementary bodies are arranged on the adjacent edges of the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip; a left sealing block is arranged on the left obstacle avoidance sealing strip, a right sealing block is arranged on the right obstacle avoidance sealing strip, and semi-closed bodies are arranged on the adjacent edges of the left sealing block and the right sealing block. Wherein the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are in stress contact, the contact ends of the two form an outer sealing area, the left sealing block and the right sealing block are in contact, and the contact ends of the two form an inner sealing flow guide area; the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are stressed and contacted to form a first layer of sealing, and the corresponding sealing blocks are contacted to form a second layer of sealing; the flexible texture of the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip can be adaptively deformed according to platforms of different sizes when the door plate is opened and moves.

Description

Technical Field

[0001] The present application relates to the technical field of urban rail vehicle door systems, and in particular to an obstacle avoidance sealing device and method for a double-opening plug sliding door of a rail vehicle. Background Art

[0002] When designing rail vehicles, it is necessary to consider air tightness during high-speed driving. The existing technology uses the outer edge of a rigid door panel to press the surrounding sealing strips against the vehicle body to form a complete seal. However, due to the long construction time span, inconsistent design standards, and settlement under long time spans, the height and width of platforms at different locations on the same line are not uniform. In order to avoid collisions with the platform when the Sierra door is opened, the body design of the rail vehicle must simultaneously meet the highest and narrowest dimensions of all platforms, resulting in a waste of vehicle capacity. The existing technology cannot take into account both increasing vehicle capacity and ensuring air tightness; in addition, during the long-term travel of the train, rainwater will gradually penetrate the gaps in the rubber strips. The existing technology can reduce but not completely eliminate this situation by increasing the squeezing force of the door panels on both sides. Summary of the invention

[0003] The purpose of this application is to provide a double-opening plug sliding door obstacle avoidance sealing device and method for rail vehicles, so that the door opening is not limited by the platform size within a certain range. At the same time, the sealing and fastening structure is optimized to ensure the air tightness and rainproofness between the vehicle body and the door panel when driving at high speed.

[0004] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions: In a first aspect, the present application provides an obstacle avoidance sealing device for a double-opening plug sliding door of a rail vehicle, comprising a left obstacle avoidance sealing strip and a right obstacle avoidance sealing strip, wherein the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip have the same structure, and the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip have adjacent edges provided with a complementary body, the left obstacle avoidance sealing strip is provided with a left sealing block, the right obstacle avoidance sealing strip is provided with a right sealing block, and the left sealing block and the right sealing block have adjacent edges provided with a semi-enclosed body; The left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are in force contact, and the contact ends of the two form an outer sealing area. The left sealing block and the right sealing block are in contact, and the contact ends of the two form an inner sealing guide area.

[0005] According to a further solution of the present application, an installation area is provided at one end of the left obstacle avoidance sealing strip, a fixing plate is provided in the installation area, the fixing plate is fixed to the lower edge of the door panel by a bolt assembly, and a left obstacle avoidance sealing edge is obliquely extended from the other end of the left obstacle avoidance sealing strip.

[0006] According to a further solution, the installation area includes a left inner clamping edge and a left outer clamping edge, and the left inner clamping edge and the left outer clamping edge are spaced apart at one end of the left obstacle avoidance sealing strip, and a pre-fixing portion extends from the left inner clamping edge toward the side of the fixing plate, and the pre-fixing portion is placed in the groove of the fixing plate.

[0007] In a further solution, a flange is radially provided at the end of the pre-fixing portion away from the left inner layer clamping edge, a cavity is provided in the fixing plate, and the flange contacts the cavity wall of the cavity.

[0008] In a further solution of the present application, the complementary body includes a first outer sealing surface provided on one side of the left obstacle avoidance sealing strip, and a second outer sealing surface provided on one side of the left obstacle avoidance sealing strip, wherein the second outer sealing surface matches the first outer sealing surface to form an outer sealing area.

[0009] According to a further solution of the present application, the semi-enclosed body includes a first half cover and a second half cover, wherein the first half cover is arranged on one side of the left sealing block, and the second half cover is arranged on one side of the right sealing block, and the first half cover and the second half cover are in contact to form an inner sealing guide area.

[0010] In a further solution, the first half cover and the second half cover are both provided with an inner sealing surface and a flow guide surface, the two inner sealing surfaces are in contact to form an inner sealing area, and the two flow guide surfaces are in contact to form a flow guide cavity.

[0011] According to a further solution of the present application, the bottom of the left sealing block and the bottom of the right sealing block are provided with rigid reinforcement edges, and the bottom ends of the two rigid reinforcement edges are in one-to-one contact with the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip.

[0012] In a second aspect, the present application discloses a method for using a rail vehicle double-opening plug sliding door obstacle avoidance sealing device, which comprises the following steps: The left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are fixed relatively to the two door panels respectively, wherein the left sealing block and the right sealing block are away from the corresponding door panels; After the two door panels are closed, the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are in contact with each other to form an outer sealing area, which is a primary seal for the train. At the same time, the left sealing block and the right sealing block are in contact with each other to form a secondary seal. The left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip are in contact with the car body to form a temporary storage area for rainwater. After the two door panels are opened, the left obstacle avoidance sealing strip and the right obstacle avoidance sealing strip adapt to the deformation and come into contact with the platform.

[0013] According to a further solution of the present application, after the two door panels are closed, the first half cover on the left sealing block and the second half cover on the right sealing block form a sealed guide area, and rainwater flows along the guide cavity in the inner sealed guide area and flows to the temporary storage area along the rigidity-enhanced edge; After the two door panels are opened, the rainwater in the temporary storage area is retained outside the vehicle body.

[0014] The beneficial effects of this application are: The left and right obstacle avoidance sealing strips provided in the present application form an outer sealing area, i.e., the first layer of sealing, when the two are in contact under force, and the corresponding sealing blocks on the left and right obstacle avoidance sealing strips contact to form an inner sealing diversion area, i.e., the second layer of sealing. The two layers of sealing ensure relative absolute airtightness, and the sealing blocks also have the function of diverting rainwater, thereby improving the rainproof performance of the vehicle body. The flexible texture of the left and right obstacle avoidance sealing strips can be adaptively deformed according to platforms of different sizes when the door panels are opened and moved, thereby ensuring the design of the vehicle body space, and ultimately taking into account both increasing the vehicle's carrying capacity and ensuring airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional schematic diagram of an obstacle avoidance sealing device according to a first embodiment of the present application; Figure 2 This is a schematic diagram of the principle of the obstacle avoidance function of the left and right obstacle avoidance sealing strips in the obstacle avoidance sealing device of the first embodiment of the present application; Figure 3 This is a schematic diagram of the principle of the rain-shielding function of the obstacle avoidance sealing device of Example 1 of the present application; Figure 4 This is a schematic diagram of the structure of the left and right sealing strips in the obstacle avoidance sealing device of Example 1 of the present application; Figure 5 It is a cross-sectional schematic diagram of the left and right sealing blocks in the obstacle avoidance sealing device according to the first embodiment of the present application.

[0016] Among them: 1. Left obstacle avoidance sealing strip; 2. Right obstacle avoidance sealing strip; 3. Fixed plate; 4. Lining plate; 5. Bolt assembly; 6. Diversion sealing assembly; 11. Left obstacle avoidance sealing edge; 12. Left inner layer clamping edge; 13. Left outer layer clamping edge; 61. Left sealing block; 62. Right sealing block; 63. External sealing area; 64. Internal sealing surface; 65. Diversion surface; 66. Rigidity enhancement edge. DETAILED DESCRIPTION

[0017] The following will be combined with the 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 described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Embodiment 1

[0018] like Figure 4As shown, the embodiment of the present invention discloses an obstacle avoidance sealing device for a double-opening plug sliding door of a rail vehicle, which is installed on the door of a train, and comprises a left obstacle avoidance sealing strip 1 and a right obstacle avoidance sealing strip 2 which are arranged opposite to each other, and the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 are installed on corresponding door panels, and complementary bodies are arranged on the opposite surfaces of the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2, and a left sealing block 61 is fixed to the side of the left obstacle avoidance sealing strip 1 facing away from the door panel, and a right sealing block 62 is arranged on the right obstacle avoidance sealing strip 2, and semi-enclosed bodies are arranged on the opposite surfaces of the left sealing block 61 and the right sealing block 62; when the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 move and contact with the door, the contact ends of the two form an outer sealing area 63, and at the same time, the left sealing block 61 and the right sealing block 62 are in contact, and the contact ends between the two form an inner sealing guide area.

[0019] When in use, after the train door is closed, a first layer of seal is formed between the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2, and the left sealing block 61 and the right sealing block 62 form a second layer of seal. The two layers of seal greatly improve the air tightness of the vehicle. When the door is opened, the left and right obstacle avoidance sealing strips contact the platform and adaptively deform according to the different sizes of platforms to avoid collision or scratches with the platform, thereby enhancing adaptability. The diversion section in the sealed diversion area can divert rainwater to prevent rainwater from flowing into the vehicle body.

[0020] Reference Figure 1 The left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 in this embodiment have the same structural components and need to be used in combination. Taking the left obstacle avoidance sealing strip 1 as an example, the left obstacle avoidance sealing strip 1 includes a lower left obstacle avoidance sealing edge 11 and an upper locking area (installation area). During installation, the lowest end of the left obstacle avoidance sealing edge 11 has a height difference with the lowest end of the door panel. In layman's terms, the left obstacle avoidance sealing edge 11 can be partially or completely exposed from the lower side of the door panel. Normally, the left obstacle avoidance sealing edge 11 is exposed to the greatest extent during installation; wherein the top end of the left obstacle avoidance sealing strip 1 is parallelly and spaced apart with a left inner layer clamping edge 12 and a left outer layer clamping edge 13 integrally installed, and the left inner layer clamping edge 12, A clamping area is formed between the left outer clamping edge 13, and a fixing plate 3 is arranged in the clamping area. The fixing plate 3 is in contact with the left inner clamping edge 12 and the left outer clamping edge 13, and is installed using a bolt assembly 4. Normally, the bolt assembly 4 uses bolts of appropriate length, and the bolts pass through the left outer clamping edge 13, the fixing plate 3 and the left inner clamping edge 12 and are fixed to the door panel. In addition, a lining plate 4 can be arranged on the surface of the left outer clamping edge 13, and a mounting countersunk hole is opened on the lining plate 4. The bolts are locked in the countersunk hole with a gasket. At this time, the stability of the left obstacle avoidance sealing strip 1 is greatly improved, thereby indirectly ensuring the sealing degree of the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 after contact.

[0021] In further implementation, the left obstacle avoidance sealing strip 1 is designed to be pre-clamped (installed), and a pre-fixing portion is extended from the side of the left inner clamping edge 12 facing the fixed plate 3, and the pre-fixing portion is placed in the groove of the fixed plate 3. A flange is radially provided at the end of the pre-fixing portion away from the left inner clamping edge 12, and a cavity is provided in the fixed plate 3. After the pre-fixing portion is squeezed into the cavity of the fixed plate 3 under force, the flange elastically releases and contacts the cavity wall, which has a retreat-stopping function; the left obstacle avoidance sealing strip 1 can be pre-installed, and the final fixation can be quickly achieved.

[0022] As attached Figure 4 As shown, in this embodiment, the complement includes a first outer sealing surface arranged on one side of the left obstacle avoidance sealing strip 1, and a second outer sealing surface is arranged on one side of the left obstacle avoidance sealing strip 1. The second outer sealing surface is matched with the first outer sealing surface to form an outer sealing area 63, forming a first layer of sealing.

[0023] In this embodiment, the semi-enclosed body includes a first half cover arranged on one side of the left sealing block 61, and a second half cover arranged on one side of the right sealing block 62. The second half cover and the left sealing block 61 have matching inclinations and fit completely after contact. The first half cover and the second half cover contact to form an inner sealing guide area, thereby achieving the second layer of sealing.

[0024] In a further embodiment, a layer of the sealed flow guide area close to the door panel has a flow guide function, such as Figure 5 As shown, the first half cover and the second half cover are both provided with an inner sealing surface 64 and a guide surface 65, the inner sealing surface 64 and the guide surface 65 are smoothly butted against each other, the two guide surfaces 65 are fixed in contact with the corresponding obstacle avoidance sealing strips, and after the door panel is closed, the two inner sealing surfaces 64 contact to form an inner sealing area, and the two guide surfaces 65 contact to form a guide cavity, the cross-section of the guide surface 65 is an arc-shaped structure, and the two arc-shaped structures fit together to form a cavity.

[0025] As attached Figure 3 and Figure 4 As shown, in the present embodiment, a rigid reinforcement edge 66 is added. The rigid reinforcement edge 66 is fixed at the bottom of the left sealing block 61 and the right sealing block 62. The bottom ends of the two rigid reinforcement edges 66 are in one-to-one contact with the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2. The rigid reinforcement edge 66 also has a diversion function, which can guide the rainwater that penetrates into the gap to the area between the left obstacle avoidance sealing edge 11 and the right obstacle avoidance sealing edge 21 of the vehicle body and the vehicle body, so as to prevent the rainwater from further penetrating into the vehicle interior space; usually, a protrusion is formed on the end of the left and right obstacle avoidance sealing strips 1 away from the door panel, and the capacity of the rainwater temporary storage area can be increased when the protrusion contacts the vehicle body. Embodiment 2

[0026] This embodiment discloses a method of use, which is implemented based on the structure of the above embodiment 1, and the method includes the following steps: First, the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 are fixed relatively to the two door panels respectively with the fixing plate 3, the bolt assembly 5 and the lining plate 4. It should be noted here that the left sealing block 61 and the right sealing block 62 are away from the corresponding door panels. When the train starts and the door is closed, the left sealing block 61 and the right sealing block 62 fit together to form an outer sealing area 63, an inner sealing area, and a guide surface 65. The left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing strip 2 are connected as one body, and the obstacle avoidance sealing device has enhanced rigidity. It contacts the vehicle body under the action of the door panel and is compressed and deformed along the width direction of the vehicle body, thereby achieving the sealing of the vehicle body and the door during the operation of the train; the first half cover on the left sealing block 61 and the second half cover on the right sealing block 62 form a sealed guide area, and rainwater stays along the guide cavity in the inner sealed guide area and can flow to the temporary storage area along the rigidity enhanced edge 66; When the train arrives at the station and the door is opened, the left sealing block 61 and the right sealing block 62 separate, the rigidity of the obstacle avoidance sealing device is reduced, and the left obstacle avoidance sealing strip 1 and the right obstacle avoidance sealing edge strip 2 may be greatly deformed when they come into contact with the platform, so that the door panel can continue to move toward the outside of the vehicle body; after the door panel is opened, the rainwater in the temporary storage area is retained outside the vehicle body, and the device can realize waterproof and rapid drainage functions.

[0027] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, 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.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

Claims

1. An obstacle avoidance sealing device for a double-opening sliding door of a rail vehicle, characterized in that: The invention comprises a left obstacle avoidance sealing strip (1) and a right obstacle avoidance sealing strip (2), wherein adjacent edges of the left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) are provided with complementary bodies, the left obstacle avoidance sealing strip (1) is provided with a left sealing block (61), the right obstacle avoidance sealing strip (2) is provided with a right sealing block (62), and adjacent edges of the left sealing block (61) and the right sealing block (62) are provided with semi-enclosed bodies; The left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) are in force contact, and the contact ends of the two form an outer sealing area (63); the left sealing block (61) and the right sealing block (62) are in contact, and the contact ends of the two form an inner sealing guide area.

2. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 1, characterized in that: One end of the left obstacle avoidance sealing strip (1) is provided with an installation area, and a fixing plate (3) is provided in the installation area. The fixing plate (3) is fixed to the lower edge of the door panel via a bolt assembly (5). The other end of the left obstacle avoidance sealing strip (1) is obliquely extended with a left obstacle avoidance sealing edge (11); the left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) have the same structure.

3. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 2, characterized in that: The installation area comprises a left inner clamping edge (12) and a left outer clamping edge (13), the left inner clamping edge (12) and the left outer clamping edge (13) being arranged at intervals at one end of the left obstacle avoidance sealing strip (1), and a pre-fixing portion extending from a side of the left inner clamping edge (12) facing the fixing plate (3), the pre-fixing portion being placed in a notch of the fixing plate (3).

4. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 3, characterized in that: A flange is radially provided at the end of the pre-fixing portion away from the left inner layer clamping edge (12), a cavity is provided in the fixing plate (3), and the flange contacts the cavity wall of the cavity.

5. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 1, characterized in that: The complementary body comprises a first outer sealing surface provided on one side of the left obstacle avoidance sealing strip (1), and a second outer sealing surface provided on one side of the left obstacle avoidance sealing strip (1), wherein the second outer sealing surface matches the first outer sealing surface to form an outer sealing area (63).

6. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 1, characterized in that: The semi-enclosed body comprises a first half cover and a second half cover, the first half cover being arranged on one side of the left sealing block (61), the second half cover being arranged on one side of the right sealing block (62), the first half cover and the second half cover being in contact to form an inner sealing guide area.

7. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 6, characterized in that: The first half cover and the second half cover are both provided with an inner sealing surface (64) and a flow guide surface (65); the two inner sealing surfaces (64) are in contact with each other to form an inner sealing area, and the two flow guide surfaces (65) are in contact with each other to form a flow guide cavity.

8. The obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 1, characterized in that: The bottom of the left sealing block (61) and the bottom of the right sealing block (62) are provided with rigid reinforcement edges (66), and the bottom ends of the two rigid reinforcement edges (66) are in one-to-one contact with the left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2).

9. A method for using the obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to any one of claims 1 to 8, characterized in that: include: The left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) are fixed relatively to the two door panels respectively, wherein the left sealing block (61) and the right sealing block (62) face away from the corresponding door panels; After the two door panels are closed, the left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) are in contact with each other to form an outer sealing area (63), which seals the train once. At the same time, the left sealing block (61) and the right sealing block (62) are in contact with each other to form a secondary seal. The left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) are in contact with the vehicle body to form a temporary storage area for rainwater. After the two door panels are opened, the left obstacle avoidance sealing strip (1) and the right obstacle avoidance sealing strip (2) adapt to the deformation and come into contact with the platform.

10. The method for using the obstacle avoidance sealing device for double-opening sliding doors of rail vehicles according to claim 9, characterized in that: After the two door panels are closed, the first half cover on the left sealing block (61) and the second half cover on the right sealing block (62) form a sealed guide area, and rainwater flows along the guide cavity in the inner sealed guide area and flows along the rigid reinforcement edge (66) to the temporary storage area; After the two door panels are opened, the rainwater in the temporary storage area is retained outside the vehicle body.

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