A directionally heatable seal bead assembly and door system

Abstract

The application discloses a sealable sealing strip assembly capable of directional heating in the field of rail car doors, which comprises a sealing strip and a door leaf, a mounting cavity is arranged in the sealing strip, a heating device and a heat insulation structure are arranged in the mounting cavity, the heating device is wrapped in the heat insulation structure, one side of the heating device is in contact with the sealing strip and faces the door leaf, a sealing rubber strip is mounted on the door leaf, the door leaf is forced to move, and the sealing rubber strip intermittently contacts a heat conduction surface of the sealing strip; in the application, the heat insulation structure and the heating device are arranged in the mounting cavity of the sealing strip, the heat insulation structure wraps around the heating device, only one side is left as a heat transfer port, the concentrated one-way conduction of heat energy is ensured, the position between the rubber strip of the car door and the sealing strip which may be iced is heated and kept warm during actual installation, the heat energy utilization rate is improved, the power burden of the vehicle is reduced, and the application is more energy-saving and environment-friendly.

Description

Technical Field

[0001] This application relates to the field of railcar door technology, specifically to a directional heating sealing strip assembly and door system. Background Technology

[0002] In northern my country, the winter climate is cold. On main lines, train doors, after being closed, take a long time to reopen. Rainwater outside and condensation inside the doors often freeze between the door panel and the lower door strip when the temperature drops rapidly, making the door difficult or impossible to open. Currently, automatic doors use an electric heating system at the bottom of the door, with multiple layers of electric heat tracing wires to heat the lower part of the door and prevent icing. While this system effectively prevents icing, it is bulky, dissipates heat in all directions, and has low heat utilization. Higher-powered heating equipment is required, placing a burden on the vehicle's electrical system. Manual doors require attendants to pour hot water onto the frozen areas when the vehicle is approaching a stop; this is time-consuming and laborious, and the water may cause further icing after it cools. Utility Model Content

[0003] The purpose of this application is to provide a directional heating sealing strip assembly and door system to solve the defects of low heating efficiency and poor defrosting effect of the existing technology.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] In a first aspect, this application discloses a directional heating sealing strip assembly to prevent door leaf from freezing, comprising: a sealing strip, wherein the sealing strip has an installation cavity, the installation cavity has a heating device and a heat insulation structure, the heating device is wrapped in the heat insulation structure, and one side of the heating device contacts the sealing strip and faces the door leaf;

[0006] A sealing strip is installed on the door leaf. When the door leaf is moved under force, the sealing strip intermittently contacts the heat-conducting surface of the sealing strip.

[0007] In a further embodiment of this application, the mounting cavity has an opening on one side, and the heating device and the heat insulation structure are sequentially placed inside the mounting cavity. The opening is sealed by a pressure plate and fasteners.

[0008] In a further embodiment, the heat insulation structure is a groove structure, with the heating device placed inside the groove and one side abutting against the pressure plate.

[0009] In a further embodiment of this application, the sealing strip is detachably connected to the door leaf, the door leaf is provided with an installation groove, and one end of the sealing strip is snapped into the installation groove.

[0010] In a further embodiment, the sealing strip has a fixing part at one end and an abutting part at the other end, with protrusions on both sides of the fixing part for preventing retraction.

[0011] In a further embodiment, the fixing part is provided with a first sealing structure, and the groove of the mounting groove is provided with a second sealing structure, the second sealing structure matching the first sealing structure.

[0012] In a further embodiment, the cross-section of the abutment portion is V-shaped.

[0013] Secondly, this application discloses a door system that includes the aforementioned directionally heated sealing strip assembly.

[0014] The beneficial effects of this application are as follows:

[0015] In this application, a heat insulation structure and a heating device are set in the installation cavity of the sealing strip. The heat insulation structure surrounds the heating device on all sides, leaving only one side as a heat transfer port to ensure concentrated unidirectional conduction of heat energy. During actual installation, the area between the door rubber strip and the sealing strip that may freeze is heated and insulated to improve the heat energy utilization rate, reduce the vehicle's power consumption burden, and make it more energy-efficient and environmentally friendly.

[0016] The device can be installed in the space of the existing sealing strip, with minimal additional external space required.

[0017] In addition, the first sealing structure on the fixing part of the sealing strip and the second sealing structure at the groove of the mounting groove can work together to increase the sealing degree and enhance the sealing performance of the door leaf. In actual production, the second sealing structure is designed as a bevel, which can also provide a guiding effect for the installation of the fixing part. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the sealing strip assembly in an embodiment of this application.

[0019] The components include: 1. Sealing strip; 2. Heat insulation structure; 3. Heating device; 4. Pressure plate; 5. Door leaf; 6. Sealing strip; 61. Fixing part; 62. Abutting part. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Example 1

[0021] like Figure 1As shown, this embodiment provides a directional heating sealing strip assembly, which provides directional heating and insulation for areas of the door leaf 5 and sealing strip 1 that may freeze, thus achieving energy-saving effects. The sealing strip assembly includes a sealing strip 1 and a door leaf 5 disposed opposite to the sealing strip 1. A sealing strip 6 is detachably installed on the door leaf 5. Under the drive of the driving device, the door leaf 5 forms a sliding motion, causing the sealing strip 6 to intermittently contact the sealing strip 1. In this embodiment, the area in contact between the sealing strip 1 and the sealing strip 6 is the heating area. The sealing strip 1 has an installation cavity, which contains a heating device 3 and a heat insulation structure 2. The heating device 3 is enclosed in the heat insulation structure 2, which provides heat insulation for the heating device 3. One side of the heating device 3 contacts the sealing strip 1 and faces the door leaf 5. The door leaf 5 moves under force, causing the sealing strip 6 to intermittently contact the heat-conducting surface of the sealing strip 1.

[0022] In this embodiment, an opening is provided on one side of the mounting cavity to facilitate the arrangement of the heating device 3 and the heat insulation structure 2. The heating device 3 is placed in the mounting cavity and then installed in the heat insulation structure 2. The opening is sealed by the pressure plate 4 and fasteners. Typically, the heat insulation structure 2 is designed as a groove structure. The heating device 3 is placed in the groove, and the side facing the groove abuts against the pressure plate 4. The heating device 2 should preferably be a strip or line product available on the market. The heat insulation structure 2 uses a heat insulation strip 3. The shape of the heat insulation strip 3 should correspond to the shape of the heating device and the inner cavity of the sealing pressure strip 1.

[0023] In this embodiment, the sealing strip 6 has a fixing part 61 at one end and an abutting part 62 at the other end. The fixing part 61 has protrusions on both sides for preventing backlash. The door leaf 5 is provided with an installation groove. The fixing part 61 is snapped into the installation groove. The abutting part 62 is composed of two strips arranged in a V-shape. When in use, when the abutting part 62 contacts and squeezes the sealing strip 1 and the pressure plate 4, the two strips will move away from each other and the contact surfaces will fit together, achieving a high sealing effect.

[0024] In a further embodiment, a first sealing structure is provided on the fixing part 61, and a second sealing structure is provided at the groove of the mounting groove. The second sealing structure matches the first sealing structure. Under normal circumstances, the beveled surface that matches the first sealing structure and the second sealing structure ensures the sealing effect at the installation connection after the sealing strip 6 and the door leaf 5 are installed. At the same time, the beveled surface design can play an installation guiding role for the fixing part 6. Example 2

[0025] This embodiment provides a door system that includes the directional heating sealing strip assembly described in Embodiment 1 above.

[0026] In the train, the sealing strip 1 is installed on the vehicle door sill. The heating device 2 and the heat insulation structure 3 are installed inside the cavity of the sealing strip. The shape of the heat insulation structure 3 should correspond to the shape of the heating device and the inner cavity of the sealing strip 1. The position of the heating device 2 corresponds to the area between the sealing strip 1 and the sealing strip 6 where freezing may occur. The heat insulation structure 3 wraps around the heating device 2 in directions where heating is not required, reducing heat loss; directions requiring heating do not need to be wrapped. The pressure plate 4 is connected to the sealing strip by screws, protecting the heating device 2 and the heat insulation material 3 inside the sealing strip. The heating device 2 can transfer most of the heat it generates to the vicinity of the sealing strip 6 through the pressure plate 4, achieving rapid thawing or preventing icing.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A directionally heated sealing strip assembly to prevent door leaf freezing, characterized in that, include: A sealing strip (1) is provided with an installation cavity. A heating device (3) and a heat insulation structure (2) are provided in the installation cavity. The heating device (3) is wrapped in the heat insulation structure (2). One side of the heating device (3) is in contact with the sealing strip (1) and faces the door leaf (5).

2. The directionally heated sealing strip assembly according to claim 1, characterized in that, The mounting cavity has an opening on one side, and the heating device (3) and the heat insulation structure (2) are placed in the mounting cavity in sequence. The opening is sealed by a pressure plate (4) and fasteners.

3. The directionally heated sealing strip assembly according to claim 2, characterized in that, The heat insulation structure (2) is a groove structure, and the heating device (3) is placed in the groove, with one side abutting against the pressure plate (4).

4. The directionally heated sealing strip assembly according to claim 1, characterized in that, A sealing strip (6) is installed on the door leaf (5). The door leaf (5) moves under force, causing the sealing strip (6) to intermittently contact the heat-conducting surface of the sealing strip (1). The sealing strip (6) is detachably connected to the door leaf (5). The door leaf (5) is provided with an installation groove, and one end of the sealing strip (6) is snapped into the installation groove.

5. The directionally heated sealing strip assembly according to claim 4, characterized in that, The sealing strip (6) has a fixing part (61) at one end and an abutting part (62) at the other end. The fixing part (61) has protrusions on both sides for preventing backflow.

6. The directionally heated sealing strip assembly according to claim 5, characterized in that, The fixing part (61) is provided with a first sealing structure, and the groove of the mounting groove is provided with a second sealing structure, which matches the first sealing structure.

7. The directionally heated sealing strip assembly according to claim 5, characterized in that, The cross-section of the abutment portion (62) is V-shaped.

8. A gate system, characterized in that, Includes the directional heating sealing strip assembly as described in any one of claims 1 to 7.

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