Door leaf provided with lubrication-free rubber strip

Abstract

The utility model discloses a door leaf provided with a lubrication-free rubber strip, which comprises a door leaf, the lubrication-free rubber strip and a door frame, and the lubrication-free rubber strip is arranged on the door leaf; the lubrication-free rubber strip comprises a lubrication-free dustproof rubber strip and a lubrication-free sealing rubber strip. The lubrication maintenance problem of the door leaf in the on-line running process of a vehicle is solved, and lubricating grease is replaced to achieve lubrication-free maintenance of the rubber strip of the door leaf; the problems of short lubrication maintenance period, high material cost and improper adhesive tape maintenance are effectively solved, the fault frequency of a door system is reduced, and the operation period of a vehicle is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of rail transit vehicle door systems, in particular to a door leaf installed with a lubrication-free rubber strip. Background Art

[0002] Doors are a crucial component of rail transit vehicle door systems. They not only provide crucial access for passengers and staff, but also seal and protect the vehicle from dust during operation. The sealing and dustproofing components of the door leaves are rubber strips. The frequency of door opening and closing during vehicle operation directly impacts the wear of these rubber strips. To minimize rubber strip wear, a special lubricant is typically applied. However, grease is susceptible to dust and is expensive. Furthermore, the daily maintenance cycle for these rubber strips is short, at 90 days or 100,000 kilometers. Therefore, door strip maintenance significantly impacts the operating environment of the door system, necessitating the development of novel door strip maintenance solutions to overcome these challenges. Utility Model Content

[0003] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, the utility model provides a door leaf installed with a lubrication-free rubber strip, which solves the lubrication and maintenance problems of the door leaf during online operation of the vehicle, and replaces grease to achieve lubrication-free maintenance of the door leaf rubber strip; effectively solves the problems of short lubrication and maintenance cycle, high material costs, and improper maintenance of the rubber strip, reduces the frequency of door system failures, and improves the vehicle operation cycle.

[0004] Technical solution: The utility model is a door leaf installed with a lubrication-free rubber strip, which is characterized by comprising a door leaf, a lubrication-free rubber strip and a door frame, wherein the lubrication-free rubber strip is installed on the door leaf; the lubrication-free rubber strip comprises a lubrication-free dustproof rubber strip and a lubrication-free sealing rubber strip.

[0005] Wherein, the lubrication-free dustproof rubber strip is in contact with the oblique contact surface of the door frame.

[0006] Wherein, the lubrication-free sealing strip is in contact with the horizontal contact surface of the door frame.

[0007] Wherein, the door leaf is provided with an installation groove for installing a lubrication-free dustproof rubber strip.

[0008] Wherein, the door leaf is provided with an installation groove for installing a lubrication-free sealing strip.

[0009] Wherein, the lubrication-free dustproof rubber strip and the installation groove of the lubrication-free sealing rubber strip are arranged vertically.

[0010] Wherein, the door leaf and door frame are arranged on a rail transit vehicle door system.

[0011] Beneficial Effects: Compared with existing technologies, this utility model has the following significant advantages: It solves the problem of lubrication and maintenance of door leaves during vehicle operation, replacing grease to achieve lubrication-free maintenance of door leaf rubber strips. It effectively solves the problems of short lubrication and maintenance cycles, high material costs, and improper rubber strip maintenance, reducing the frequency of door system failures and improving vehicle operation cycles. The lubrication-free performance of the rubber strips of this utility model can replace grease, reducing the friction resistance of the rubber strip surface. Workers no longer need to perform regular lubrication, only regular surface cleaning, reducing workload and difficulty, and also improving vehicle operation cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0014] In the figure, 1 is the door leaf; 2 is the lubrication-free rubber strip; 3 is the door frame; 4 is the lubrication-free dustproof rubber strip; 5 is the lubrication-free sealing strip. DETAILED DESCRIPTION

[0015] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0016] The door leaf of the utility model, which is installed with a lubrication-free rubber strip, comprises a door leaf 1, a lubrication-free rubber strip 2, and a door frame 3. The lubrication-free rubber strip 2 is installed on the door leaf 1; the lubrication-free rubber strip 2 comprises a lubrication-free dustproof rubber strip 4 and a lubrication-free sealing rubber strip 5. The lubrication-free dustproof rubber strip 4 is in contact with the oblique contact surface of the door frame 3. The lubrication-free sealing rubber strip 5 is in contact with the horizontal contact surface of the door frame 3. The door leaf 1 is provided with an installation groove for installing the lubrication-free dustproof rubber strip 4. The door leaf 1 is provided with an installation groove for installing the lubrication-free sealing rubber strip 5. The installation grooves of the lubrication-free dustproof rubber strip 4 and the lubrication-free sealing rubber strip 5 are arranged perpendicularly. The door leaf 1 and the door frame 3 are arranged on a rail transit vehicle door system.

[0017] The movement of door leaf 1 includes two states: "opening" and "closing." When opening and closing the door, the lubrication-free sealing strip 5 generates frictional resistance on the horizontal contact surface of the door frame 3, while the lubrication-free dustproof strip 4 generates frictional resistance on the diagonal contact surface of the door frame 3. The lubrication-free rubber strip 2 effectively reduces frictional resistance, reduces rubber strip wear, and increases its service life. When the door is opened, the friction acting on the strip decreases, and the strip returns to its original shape. When the door is closed, the horizontal and diagonal contact area between the strip and the door frame 3 increases, and the frictional resistance generated by the strip's extrusion and deformation also increases, thereby achieving a tight fit between the door frame 3 and the door leaf 1 on all sides, sealing and preventing dust from entering the door leaf 1.

[0018] The structure and shape of the rubber strip can be adjusted to suit different sealing requirements and the structure of the door leaf 1, not limited to the structural style shown in the schematic diagram. Therefore, the lubrication-free rubber strip 2 is compatible with door leaves 1 of varying specifications, offering high versatility. Furthermore, in an actual endurance test of 300,000 door openings and closings, the lubrication-free rubber strip 2 demonstrated excellent performance, completely replacing lubricated rubber strips and achieving lubrication-free maintenance for the door leaf.

[0019] The lubrication of the rubber strips in the existing technology includes four steps: "cleaning, lubrication, wiping, and inspection". If the rubber strips are not maintained properly, such as long-term lack of lubrication or excessive lubrication, it will cause the rubber strips to curl and absorb, thereby causing door system failure and affecting the normal operation of the vehicle.

[0020] The maintenance of the lubrication-free rubber strip of this utility model only requires two steps: "cleaning and inspection". The lubrication-free performance of the rubber strip can replace grease and reduce the friction on the surface of the rubber strip. The staff no longer need to perform regular lubrication, but only need to perform regular surface cleaning, which reduces workload and work difficulty and also improves the vehicle operation cycle.

Claims

1. A door leaf with a lubrication-free rubber strip installed, characterized in that: The invention comprises a door leaf (1), a lubrication-free rubber strip (2) and a door frame (3), wherein the lubrication-free rubber strip (2) is installed on the door leaf (1); the lubrication-free rubber strip (2) comprises a lubrication-free dustproof rubber strip (4) and a lubrication-free sealing rubber strip (5).

2. The door leaf with a lubrication-free rubber strip installed according to claim 1, characterized in that: The lubrication-free dustproof rubber strip (4) is fitted with the oblique contact surface of the door frame (3).

3. The door leaf with a lubrication-free rubber strip installed according to claim 2, characterized in that: The lubrication-free sealing strip (5) is fitted with the horizontal contact surface of the door frame (3).

4. The door leaf with a lubrication-free rubber strip installed according to claim 3, characterized in that: The door leaf (1) is provided with an installation groove for installing a lubrication-free dustproof rubber strip (4).

5. The door leaf with a lubrication-free rubber strip installed according to claim 4, characterized in that: The door leaf (1) is provided with an installation groove for installing a lubrication-free sealing strip (5).

6. The door leaf with a lubrication-free rubber strip installed according to claim 5, characterized in that: The installation grooves of the lubrication-free dustproof rubber strip (4) and the lubrication-free sealing rubber strip (5) are vertically arranged.

7. The door leaf with a lubrication-free rubber strip installed according to claim 1, characterized in that: The door leaf (1) and the door frame (3) are arranged on a rail transit vehicle door system.

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