Lower sealing rubber strip for high platform door system
By designing the protruding part on the outside of the lower sealing strip to overlap with the door leaf and adding a vulcanized layer at the end, the problems of the lower sealing strip in the middle and lower sealing of the high platform project are solved, and the strength of the strip and the improvement of the sealing performance are achieved.
Patent Information
- Application Number
- CN202421527748.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing lower sealing rubber strips have problems of breakage and lax sealing in high platform projects, especially when the door leaf is insufficient, increasing the thickness of the rubber strip will cause the sealing lips to be too long and easily break; and when the rubber strips with higher lips are closed, the end splicing is prone to gaps, resulting in lax sealing and water leakage.
A lower sealant strip for high platform door system is designed, including a lower sealant strip protrusion on the outside of the lower sealant strip, which overlaps with the lower door leaf to improve the strength of the rubber strip; at the same time, a lower sealant strip end vulcanization layer is provided at the end of the rubber strip to ensure that the end of the rubber strip is in close contact and sealing performance.
By adding the raised part and vulcanized layer of the rubber strip, the problem of the rubber strip not being easy to break during use and poor sealing performance is solved, ensuring the improvement of sealing performance and stability during use.
Smart Images
Figure CN222772141U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rail vehicle door system, in particular to a lower sealing rubber strip used for a high platform door system. Background Art
[0002] The sealing lip of the lower sealing strip in the conventional vehicle door system is generally about 12mm away from the bottom of the door leaf. In order to adapt to different strip installation positions and different sealing requirements, the cross-sectional height of the lower sealing strip can be changed. However, the lower sealing strip currently used has the following problems for high platform projects:
[0003] 1. For high platform projects, it is necessary to ensure that the bottom of the door leaf is at least 30mm from the platform height, and the distance from the lip of the lower sealing strip to the bottom of the door leaf is about 50mm. In the case that there is insufficient space at the lower part of some door leaves and the thickness of the strip cannot be increased, increasing the cross-sectional height of the strip will cause the sealing lip of the strip to be too long and prone to breakage.
[0004] 2. When the door system is closed, gaps are likely to appear at the ends of the left / right lower sealing strips with a higher lip, resulting in poor sealing and water leakage.
[0005] Therefore, it is necessary to develop a new type of lower sealing strip for the high platform door system so that the strip is not easy to break during use, while ensuring the sealing performance of the end of the strip to prevent water leakage due to loose sealing. Utility Model Content
[0006] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a lower sealing strip for a high platform door system, which makes the strip less likely to break during use, while ensuring the sealing performance of the end of the strip and preventing water leakage due to loose sealing.
[0007] Technical solution: The utility model is a lower sealing strip for a high platform door system, comprising a lower sealing strip, a lower sealing strip protrusion is provided on the outer side of the lower sealing strip, after the lower sealing strip is installed on the lower stop of the door leaf, the lower sealing strip protrusion overlaps with the lower stop of the door leaf; the end of the lower sealing strip is provided with a lower sealing strip end vulcanization layer.
[0008] Among them, the total height of the lower sealing strip is 68.5mm, and the height of the sealing lip is 56.5mm.
[0009] Among them, the bottom of the lip edge of the lower sealing strip is 49mm away from the bottom of the lower stop of the door leaf.
[0010] Wherein, the lower sealing strip protrudes at a distance of 19 mm from the top of the lower sealing strip.
[0011] Wherein, the thickness of the vulcanized layer at the end of the lower sealing strip is 8 mm and the height is 45 mm.
[0012] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: after the height of the lower sealing strip of the utility model is increased, in the case where the cross-sectional thickness of the strip cannot be increased due to insufficient space under the door leaf, the strength of the strip can still be guaranteed, so that the strip is not prone to breakage during use, and at the same time, the sealing performance of the end of the strip is guaranteed, and water leakage due to loose sealing will not occur. Only a small raised portion is added to the cross-section of the lower sealing strip, and the overall cross-section is not complicated and easy to operate. The end of the lower sealing strip is vulcanized, and the shape is simple and easy to operate. In addition, the overall structure of the lower sealing strip has not changed, and the same easy-to-disassemble feature as before is maintained, making maintenance simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0015] Figure 3 for Figure 2 AA cross-sectional structural diagram;
[0016] Figure 4 for Figure 2 BB cross-sectional structure diagram;
[0017] In the figure, 1 is the lower stop of the door leaf; 2 is the lower sealing strip; 3 is the vulcanized layer at the end of the lower sealing strip; and 4 is the protrusion of the lower sealing strip. DETAILED DESCRIPTION
[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0019] The platform heights of some foreign subway / light rail projects are different, and there may be higher platforms. In order to ensure that the bottom of the vehicle door leaf does not hit the platform during the door opening process, the bottom of the door leaf is generally required to be 30mm higher than the platform. In this case, the lower sealing strip needs to be at a higher height to meet the sealing requirements. The lower sealing strip of the utility model not only meets the height requirements, but also has a small protrusion on the cross-section, which can contact the bottom of the lower gear of the door leaf after closing the door, thereby increasing the strength of the strip and making it less likely to break. In addition, there is a vulcanized area at the end of the left / right lower sealing strip, which can ensure that the ends of the two strips are in close contact after closing the door, thereby ensuring the sealing performance.
[0020] The utility model discloses a lower sealing strip for a high platform door system, comprising a lower sealing strip 2, wherein a lower sealing strip protrusion 4 is arranged on the outer side of the lower sealing strip 2, and after the lower sealing strip 2 is installed on the lower step 1 of the door leaf, the lower sealing strip protrusion 4 overlaps with the lower step 1 of the door leaf; and a lower sealing strip end vulcanization layer 3 is arranged on the end of the lower sealing strip 2.
[0021] The lower sealing strip 2 has a total height of 68.5mm and a sealing lip height of 56.5mm. After being installed on the lower step 1 of the door leaf, the bottom of the lip of the lower sealing strip 2 is 49mm away from the bottom of the lower step 1 of the door leaf. There is a bulge on the outside 19mm away from the top of the lower sealing strip 2. When closing the door, the bulge can be placed on the bottom of the lower step 1 of the door leaf to ensure the strength of the strip. At the end of the lower sealing strip 2, there is a vulcanized part with a thickness of 8mm and a height of 45mm, which can ensure that the two lower sealing strips are tightly spliced when closing the door, without water leakage, and enhance the strength of the end of the lower sealing strip.
[0022] When the space of the lower part 1 of some door leaves is insufficient and the thickness of the rubber strip cannot be increased, the lower sealing rubber strip protrusion 4 overlaps the lower part 1 of the door leaf to ensure the strength of the rubber strip and prevent it from breaking. The end of the lower sealing rubber strip is vulcanized 3 to ensure that when the door is closed, the ends of the two lower sealing rubber strips 2 are tightly spliced to prevent water leakage, and increase the strength of the splicing to avoid damage and breakage. The lower sealing rubber strip 2 meets the vehicle sealing requirements, and is easy to disassemble and assemble, and easy to maintain.
Claims
1. A lower sealing strip for a high platform door system, characterized in that: The lower sealing strip (2) comprises a lower sealing strip protrusion (4) provided on the outer side of the lower sealing strip (2); after the lower sealing strip (2) is installed on the lower stop (1) of the door leaf, the lower sealing strip protrusion (4) overlaps with the lower stop (1) of the door leaf; and a lower sealing strip end vulcanization layer (3) is provided at the end of the lower sealing strip (2).
2. The lower sealing strip for a high platform door system according to claim 1, characterized in that: The total height of the lower sealing strip (2) is 68.5 mm, and the height of the sealing lip is 56.5 mm.
3. The lower sealing strip for a high platform door system according to claim 1, characterized in that: The bottom of the lip edge of the lower sealing strip (2) is 49 mm away from the bottom of the door leaf lower stop (1).
4. The lower sealing strip for a high platform door system according to claim 1, characterized in that: The lower sealing strip protrusion (4) is located 19 mm away from the top of the lower sealing strip (2).
5. The lower sealing strip for a high platform door system according to claim 1, characterized in that: The vulcanized layer (3) at the end of the lower sealing strip has a thickness of 8 mm and a height of 45 mm.