Door carrying frame capable of replacing rolling wheels on line
By designing a detachable roller structure, the problem of the inability to replace the rollers of sliding doors online was solved, enabling quick and easy roller replacement that can be completed by a single person, significantly reducing the time required.
Patent Information
- Application Number
- CN202520158863.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The rollers on existing sliding doors cannot be replaced online; the operation is complicated, time-consuming, and labor-intensive, requiring the door panel to be disassembled before replacement can be performed.
Design a detachable roller structure, including a roller body, roller shaft, connecting plate and connecting bolts, to realize online replacement of the roller through the assembly structure. The roller body is covered with a plastic or rubber layer, and the connecting plate is connected to the gantry by bolts.
It enables online replacement of rollers, is easy to operate, reduces replacement time, and can be completed by a single person, reducing time by more than 80%.
Smart Images
Figure CN223824820U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rail transit vehicle door system especially relates to a door frame with door carrying frame that can replace the roller online. BACKGROUND
[0002] The existing plug door, the upper guide roller is directly installed on the door carrying frame assembly, when replacing, the door leaf needs to be disassembled, and then the roller can be replaced, and two people need about 2 hours to replace the roller of each door system and subsequent debugging work.
[0003] Therefore, a new type of door carrying frame structure needs to be developed to overcome the above problems. SUMMARY
[0004] The utility model discloses a door frame with door carrying frame that can replace the roller online, and the roller and the door carrying frame adopt an assembly structure, can realize replacing the roller online, and are simple to operate, time-saving and labor-saving.
[0005] Technical scheme: the door frame with door carrying frame that can replace the roller online of the utility model is characterized in that: detachable rollers are arranged on the door carrying frame, the detachable roller includes a roller body, a roller shaft, a connecting plate and connecting bolts, the roller body, the roller shaft and the connecting plate are connected in sequence, and the connecting plate is connected with the door carrying frame through a plurality of connecting bolts.
[0006] The middle part of the roller body is connected with the connecting plate through the roller shaft.
[0007] The roller body is wrapped with a plastic layer or a rubber layer.
[0008] The connecting plate is provided with a plurality of threaded holes, and the door carrying frame is provided with corresponding mounting holes.
[0009] The connecting bolts are connected with the connecting plate and the door carrying frame by penetrating through the corresponding mounting holes.
[0010] The door carrying frame is provided with a groove for mounting the connecting plate.
[0011] The door carrying frame is arranged on the plug door of the rail transit vehicle door system.
[0012] Compared with the prior art, the utility model has the following remarkable advantages: the roller and the door carrying frame of the utility model adopt an assembly structure, can realize replacing the roller online, are simple to operate, time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 A schematic diagram of a prior art fixed roller mounted on a gantry frame;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model;
[0015] In the diagram, 1 is a detachable roller; 2 is the roller body; 3 is the roller shaft; 4 is the connecting plate; and 5 is the connecting bolt. Detailed Implementation
[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0017] The present invention relates to a door carrier with replaceable rollers, wherein a detachable roller 1 is provided on the door carrier. The detachable roller 1 includes a roller body 2, a roller shaft 3, a connecting plate 4 and connecting bolts 5. The roller body 2, the roller shaft 3 and the connecting plate 4 are connected in sequence, and the connecting plate 4 is connected to the door carrier by a number of connecting bolts 5.
[0018] The roller body 2 of this invention is connected to the connecting plate 4 via a roller shaft 3 in the middle. The roller body 2 is covered with a plastic or rubber layer. The connecting plate 4 has several threaded holes, and the gantry frame has corresponding mounting holes. Connecting bolts 5 connect the connecting plate 4 and the gantry frame by passing through the corresponding mounting holes. The gantry frame has a groove for mounting the connecting plate 4. The gantry frame is located on the sliding door of the rail transit vehicle door system.
[0019] This utility model features an assembled structure for the rollers and gantry, enabling online roller replacement. The operation is simple, saving time and effort. Calculations show that the entire process can be completed by one person in no more than 15 minutes, reducing roller replacement and maintenance time by over 80%.
Claims
1. A gantry frame with replaceable rollers online, characterized in that: A detachable roller (1) is provided on the gantry frame. The detachable roller (1) includes a roller body (2), a roller shaft (3), a connecting plate (4), and connecting bolts (5). The roller body (2), roller shaft (3), and connecting plate (4) are connected in sequence. The connecting plate (4) is connected to the gantry frame by several connecting bolts (5).
2. The gantry frame with replaceable rollers according to claim 1, characterized in that: The roller body (2) is connected to the connecting plate (4) in the middle via the roller shaft (3).
3. The gantry frame with replaceable rollers according to claim 1, characterized in that: The roller body (2) is covered with a plastic layer or a rubber layer.
4. The gantry frame with replaceable rollers according to claim 1, characterized in that: The connecting plate (4) has several threaded holes, and the gantry has corresponding mounting holes.
5. The gantry frame with replaceable rollers according to claim 4, characterized in that: The connecting bolts (5) connect the connecting plate (4) to the gantry by passing through the corresponding mounting holes.
6. The gantry frame with replaceable rollers according to claim 1, characterized in that: The door frame is provided with a groove for installing the connecting plate (4).
7. The gantry frame with online replaceable rollers according to any one of claims 1-6, characterized in that: The aforementioned gantry is located on the sliding door of the rail transit vehicle door system.