Sliding plug door system stabilizing device

Abstract

The utility model provides a sliding plug door system stabilizing device, and belongs to the technical field of rail transit vehicle doors. The upper riding wheel fixing seat and the lower riding wheel fixing seat are fixed to the edge of a vehicle door frame and are of the same structure, riding wheel mounting plates are arranged on the sides, facing a door body, of the upper riding wheel fixing seat and the lower riding wheel fixing seat correspondingly, riding wheels are arranged on one sides of the riding wheel mounting plates, riding wheel abutting seats corresponding to the riding wheels are arranged on one side of a door plate, and the riding wheel abutting seats abut against the riding wheels. When the door plate is closed and enters the sliding plug section, the riding wheel abutting seat on the door plate slides towards the door closing direction along the riding wheel, and vehicle door sliding plug closing is achieved. When the vehicle door is opened, the riding wheel abutting seat on the door plate slides towards the door opening direction along the riding wheel on the door frame, and door opening is achieved. The utility model has the advantages of convenient installation, easy maintenance and strong vehicle door system stability.

Description

Technical Field

[0001] This utility model belongs to the field of rail transit vehicle door technology, and specifically refers to a stabilizing device for a sliding door system. Background Technology

[0002] Currently, sliding doors are an important component of rail transit vehicles, and the quality of their mechanical component installation determines the sealing and safety of the rail vehicle during operation.

[0003] Existing rail transit sliding doors typically only use a pressure roller structure. However, when combining different products and structures, in order to meet the load-bearing requirements of new mechanisms and considering the actual stress conditions of the products, support rollers are added to the upper part of both sides of the door panel to reduce the risk of the upper cantilever structure. At the same time, the lower pressure rollers prevent the door panel from jumping after entering the sliding stroke. Summary of the Invention

[0004] The purpose of this invention is to provide a stabilizing device for a sliding door system, which can effectively prevent the door from moving along a fixed trajectory when it enters the sliding section, thus avoiding bouncing and ensuring stability.

[0005] The purpose of this utility model is achieved as follows:

[0006] A stabilizing device for a sliding door system includes an upper support roller fixing seat and a lower support roller fixing seat with identical structures, both fixed to the edge of the door frame. Both the upper and lower support roller fixing seats have support roller mounting plates on one side facing the door body. A support roller is provided on one side of each support roller mounting plate. A support roller abutment is provided on one side of the door panel, corresponding to the support roller. When the door panel closes into the sliding section, the support roller abutment on the door panel slides along the support roller in the closing direction, thus closing the door. When the door opens, the support roller abutment on the door panel slides along the support roller on the door frame in the opening direction, thus opening the door.

[0007] The present invention is further configured such that the support roller mounting plate has a mounting hole, a wheel axle passes through the mounting hole, the end of the wheel axle is hinged to the support roller, and the end of the wheel axle is limited and fixed by a nut.

[0008] The present invention is further configured such that the two roller abutment seats are arranged facing each other, and the roller abutment seat includes a strip-shaped fixing end fixed to the door panel, and one side of the strip-shaped fixing end is provided with a contact plane end for abutting against the upper or lower end of the roller.

[0009] The present invention is further provided that the strip-shaped fixing end is provided with two threaded holes for fixing.

[0010] The present invention is further provided that the outer edge of the contact plane end and the side wall on one side of the outer edge are provided with rounded corners.

[0011] The present invention is further configured such that the roller abutment seat is L-shaped, and the strip-shaped fixing end and the contact plane end are integrally formed.

[0012] The present invention is further configured such that a limiting ring is formed on the axle, and the side wall of the support roller sleeved on the axle abuts against the end of the limiting ring.

[0013] The present invention is further configured such that the two roller abutment seats are arranged in a figure-eight shape.

[0014] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0015] 1. The stabilizing device for the sliding door system provided by this utility model has upper and lower support rollers that can prevent jumping when the sliding door enters the sliding stage, and better move along a fixed trajectory, thereby achieving stable operation of the door system and improving the reliability of the door system.

[0016] 2. The last upper and lower support rollers of this utility model can achieve upper and lower anti-jumping limit on the basis of the door panel being limited in front, back, left and right.

[0017] 3. The support roller abutment seat of this utility model has a simple and integrally formed structure, which ensures sufficient structural strength and prevents loosening, thus ensuring the stability of the door plug in the working state.

[0018] 4. This utility model also has a wide range of applications and is relatively convenient to install. It is suitable for single-leaf and double-leaf electric, electric airtight and manual sliding door systems. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the plug-in door in its open state.

[0021] Figure 3 This is a structural schematic diagram of the closed door of this utility model;

[0022] Figure 4 This is a schematic diagram of the door system of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the wheel axle of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the roller abutment seat of this utility model;

[0025] Figure label:

[0026] 1-Upper support roller fixing seat; 2-Lower support roller fixing seat;

[0027] 3-Roller mounting plate; 30-Mounting hole; 31-Wheel axle; 32-Rotating ring;

[0028] 4-Support roller; 5-Support roller abutment seat; 50-Strip fixed end; 51-Contact plane end; 52-Threaded hole. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1 — Figure 6 :

[0030] A stabilizing device for a sliding door system includes an upper support roller fixing seat 1 and a lower support roller fixing seat 2, which are structurally identical and fixed to the edge of the door frame. Both the upper support roller fixing seat 1 and the lower support roller fixing seat 2 are provided with a support roller mounting plate 3 facing one side of the door body. A support roller 4 is provided on one side of the support roller mounting plate 3, and a support roller abutment seat 5 corresponding to the support roller 4 is provided on one side of the door panel. When the door panel closes into the sliding section, the support roller abutment seat 5 on the door panel slides along the support roller 4 in the closing direction, thus closing the door. When the door opens, the support roller abutment seat 5 on the door panel slides along the support roller 4 on the door frame in the opening direction, thus opening the door.

[0031] The working principle of this utility model:

[0032] like Figure 3 As shown, during the door closing process, the door will enter the plug section, and the two roller abutment seats on the door panel will slide from the upper roller fixing seat 1 and the lower roller fixing seat 2 extending from the door frame of the vehicle body in the closing direction to complete the door plug closure;

[0033] like Figure 2 As shown, during the opening of the car door, the two roller abutment seats on the door panel slide along the opening direction of the upper roller fixing seat 1 and the lower roller fixing seat 2.

[0034] The entire system can move along a fixed trajectory in both open and closed states, thereby achieving stable operation of the door system and ensuring the safety and reliability of vehicle operation.

[0035] Preferably, the roller mounting plate 3 has a mounting hole 30, and a wheel axle 31 passes through the mounting hole 30. One end of the wheel axle 31 is hinged to the roller 4, and the other end of the wheel axle 31 is fixed by a nut.

[0036] The installation of the additional support roller 4 is relatively simple and secure, ensuring a more stable working condition for the Sierra.

[0037] Preferably, the two roller abutment seats 5 are arranged facing each other. Each roller abutment seat 5 includes a strip-shaped fixing end 50 fixed to the door panel. One side of the strip-shaped fixing end 50 is provided with a contact plane end 51 for abutting against the upper or lower end of the roller 4.

[0038] Preferably, the strip-shaped fixing end 50 is provided with two threaded holes 52 for fixing.

[0039] Preferably, the outer edge of the contact plane end 51 and the side wall on one side of the outer edge are provided with rounded corners.

[0040] Preferably, the roller abutment seat 5 is L-shaped, and the strip-shaped fixed end 50 and the contact plane end 51 are integrally formed.

[0041] In the above structure, the rounded corner design can reduce friction during the closing process of the door panel, making the door system operate more smoothly and steadily; in addition, the two threaded holes 52 can make the roller abutment seat 5 firmly fixed on the door, avoiding the loosening and rotation that can easily occur when a single bolt is used for fixing.

[0042] To improve adaptability, the inner side of the roller abutment seat is thinner than the outer side to reduce bumps and friction, thus ensuring stable operation of the entire door system.

[0043] Preferably, a limiting ring 32 is formed on the axle 31, and the side wall of the support roller 4, which is sleeved on the axle 31, abuts against the end of the limiting ring 32. This ensures that one end of the support roller can properly abut during installation, preventing axial movement and guaranteeing the stability of the door system.

[0044] Preferably, the two roller abutment seats 5 are arranged in a figure-eight shape. This structure allows the two rollers to be held between the two cam abutment seats, thereby determining the sliding trajectory, improving the sealing performance of the door system, and enhancing the stability and comfort of the door system.

[0045] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A stabilizing device for a sliding door system, characterized in that, The system includes an upper support wheel fixing seat (1) and a lower support wheel fixing seat (2) that are fixed to the edge of the door frame and have the same structure. Both the upper support wheel fixing seat (1) and the lower support wheel fixing seat (2) are provided with a support wheel mounting plate (3) on one side of the door body. A support wheel (4) is provided on one side of the support wheel mounting plate (3). A support wheel abutment seat (5) corresponding to the support wheel (4) is provided on one side of the door panel. When the door panel closes and enters the sliding section, the support wheel abutment seat (5) on the door panel slides along the support wheel (4) in the closing direction and realizes the door is closed. When the door is opened, the support wheel abutment seat (5) on the door panel slides along the support wheel (4) on the door frame in the opening direction and realizes the door is opened.

2. The stabilizing device for a sliding door system according to claim 1, characterized in that, The roller mounting plate (3) has a mounting hole (30), and a wheel axle (31) passes through the mounting hole (30). One end of the wheel axle (31) is hinged to the roller (4), and the other end of the wheel axle (31) is fixed by a nut.

3. The stabilizing device for a sliding door system according to claim 1, characterized in that, The two roller abutment seats (5) are arranged facing each other. Each roller abutment seat (5) includes a strip-shaped fixing end (50) fixed to the door panel. One side of the strip-shaped fixing end (50) is provided with a contact plane end (51) for abutting against the upper or lower end of the roller (4).

4. A stabilizing device for a sliding door system according to claim 3, characterized in that, The strip-shaped fixing end (50) has two threaded holes (52) for fixing.

5. A stabilizing device for a sliding door system according to claim 3, characterized in that, The outer edge of the contact plane end (51) and the side wall on one side of the outer edge are both provided with rounded corners.

6. A stabilizing device for a sliding door system according to claim 3, characterized in that, The roller abutment seat (5) is L-shaped, and the strip-shaped fixed end (50) and the contact plane end (51) are integrally formed.

7. A stabilizing device for a sliding door system according to claim 2, characterized in that, A limiting ring (32) is formed on the axle (31), and the side wall of the support roller (4) sleeved on the axle (31) abuts against the end of the limiting ring (32).

8. A stabilizing device for a sliding door system according to claim 1, characterized in that, The two roller abutment seats (5) are arranged in a figure-eight shape.

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