Adjustable roller for sliding door
Patent Information
- Application Number
- CN202522391215.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-11
AI Technical Summary
现有滑动门滚轮多采用固定结构设计,存在以下不足:其一,滑动门运行过程中,滚轮与轨道之间易产生刚性碰撞,会加剧滚轮与轨道的磨损,缩短部件使用寿命;其二,滚轮位置不可调,当滑动门轨道高度存在偏差时,无法通过调节滚轮进行适配,需拆卸门体重新安装,操作繁琐,维护成本高
[0009]本实用新型的有益效果如下:本实用新型中滚轮通过轴承与固定柱配合安装,替代传统固定结构的刚性接触,减少滚轮与轨道的磨损;借助斜型高度调节槽与调节柱的滑动配合,通过拧动固定螺丝即可实现滚轮高度调节,无需拆卸门体。
Smart Images

Figure CN224834739U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller technology, specifically to an adjustable roller for sliding doors. Background Technology
[0002] Sliding doors are widely used in homes, offices, and commercial spaces due to their space-saving design and ease of opening and closing. As the core moving component of a sliding door, the performance of the rollers directly affects its operational stability. Most existing sliding door rollers adopt a fixed structure design, which has the following shortcomings: First, during the operation of the sliding door, rigid collisions are prone to occur between the rollers and the track, which will aggravate the wear of the rollers and the track and shorten the service life of the components; Second, the position of the rollers is not adjustable. When there is a deviation in the height of the sliding door track, it is impossible to adjust the rollers to make it fit. The door body must be disassembled and reinstalled, which is cumbersome and has high maintenance costs. Utility Model Content
[0003] The main objective of this invention is to provide an adjustable roller for sliding doors to solve the aforementioned technical problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable roller for a sliding door, comprising a left housing and a right housing, both ends of which are detachably mounted with fixing blocks; two sets of roller brackets are detachably mounted between the left and right housings, each set of roller brackets having two sets of rollers movably mounted on it; an adjustment bracket is detachably mounted on the two sets of roller brackets, the middle of which has an inclined height adjustment groove; an adjustment column is installed between the two sets of roller brackets, the adjustment column being slidably connected to the inclined height adjustment groove; a connecting frame is detachably mounted on one end of the adjustment bracket, and the connecting frame is connected to the fixing blocks by fixing screws.
[0005] Based on the above scheme and as a preferred option: a connecting column is installed in the middle of each set of roller brackets, and mounting holes are correspondingly opened on the two outer side walls of the adjusting bracket, and the connecting column is detachably connected to the mounting holes.
[0006] Based on the above scheme and as a preferred embodiment of the above scheme: a bearing and a fixing post are installed on the roller, the fixing post passes through the bearing and its two ends are fixedly connected to the inner wall of the roller bracket.
[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the outer shell of the roller and the adjusting bracket are both made of stainless steel.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a mounting column is installed between the connecting frame and the adjusting bracket; the two ends of the connecting column are detachably connected to the left shell and the right shell respectively; the two ends of the adjusting column are detachably connected to the left shell and the right shell respectively.
[0009] The beneficial effects of this utility model are as follows: In this utility model, the roller is installed by cooperating with the fixed column through the bearing, which replaces the rigid contact of the traditional fixed structure and reduces the wear between the roller and the track; with the help of the sliding cooperation between the inclined height adjustment groove and the adjustment column, the height of the roller can be adjusted by turning the fixing screw, without disassembling the door. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an installation structure diagram of the roller bracket and the adjusting bracket in this utility model; Figure 3 This is an exploded view of this utility model. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.
[0012] See attached diagram. Figures 1 to 3 An adjustable roller for a sliding door in this embodiment includes a left housing 1 and a right housing 2. Fixing blocks 3 are detachably mounted at both ends of the left housing 1 and the right housing 2. Two sets of roller brackets 4 are detachably mounted between the left housing 1 and the right housing 2, and two sets of rollers 5 are movably mounted on each set of roller brackets 4. Adjustment brackets 6 are detachably mounted on the two sets of roller brackets 4. An inclined height adjustment groove 60 is provided in the middle of the adjustment bracket 6. An adjustment column 50 is installed between the two sets of roller brackets 4, and the adjustment column 50 is slidably connected to the inclined height adjustment groove 60. A connecting frame 61 is detachably mounted at one end of the adjustment bracket 6, and the connecting frame 61 is connected to the fixing block 3 by a fixing screw 62.
[0013] In the above scheme, a connecting column 51 is installed in the middle of each set of roller brackets 4, and mounting holes 63 are opened on both outer side walls of the adjusting bracket 6. The connecting column 51 and the mounting holes 63 are detachably connected.
[0014] In the above scheme, a bearing and a fixing post 52 are installed on the roller. The fixing post 52 passes through the bearing and its two ends are fixedly connected to the inner wall of the roller bracket 4.
[0015] In the above scheme, the outer shell of roller 5 and the adjusting bracket 6 are both made of stainless steel.
[0016] In the above scheme, a mounting column 7 is installed between the connecting frame 61 and the adjusting bracket 6; the two ends of the connecting column 51 are detachably connected to the left housing 1 and the right housing 2 respectively; the two ends of the adjusting column 50 are detachably connected to the left housing 1 and the right housing 2 respectively.
[0017] The left shell 1 and the right shell 2 are assembled into an overall frame by fixing blocks 3 at both ends. Two sets of roller brackets 4 are detachably installed between the left and right shells by connecting column 51 and adjusting column 50. Two sets of rollers 5 are installed on each set of roller brackets 4 by fixing column 52 and bearing. The fixing column 52 passes through the bearing and is fixed to the inner wall of the roller bracket 4, so that the rollers 5 can rotate flexibly around the bearing. The adjusting bracket 6 is detachably connected to the connecting column 51 of the roller bracket 4 through the mounting hole 63. The inclined height adjusting groove 60 in the middle is slidably engaged with the adjusting column 50 between the two sets of roller brackets 4. The connecting frame 61 at one end of the adjusting bracket 6 is connected to the fixing block through the fixing screw 62. When the fixing screw is turned, the connecting frame 61 and the adjusting bracket 6 will move as a whole. During the movement of the adjusting bracket 6, the inclined structure of the inclined height adjusting groove 60 will generate a vertical force on the adjusting column 50, pushing the adjusting column 50 to drive the roller bracket 4 and the adjusting bracket 6 to rise and fall as a whole. This changes the relative height between the roller 5 and the housing frame, and finally realizes the height adaptation between the sliding door roller and the track. The mounting post 7 between the connecting frame 61 and the adjusting bracket 6 enhances the connection strength of the adjusting structure. The outer shell of the roller 5 and the adjusting bracket 6 are made of stainless steel to ensure structural rigidity and wear resistance. Combined with the rotation design of the bearing, the frictional resistance between the roller 5 and the track is reduced.
[0018] 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. An adjustable roller for a sliding door, characterized in that: The device includes a left shell (1) and a right shell (2). Both ends of the left shell (1) and the right shell (2) are detachably equipped with fixing blocks (3). Two sets of roller brackets (4) are detachably installed between the left shell (1) and the right shell (2). Two sets of rollers (5) are movably installed on each set of roller brackets (4). Adjusting brackets (6) are detachably installed on the two sets of roller brackets (4). An inclined height adjustment groove (60) is provided in the middle of the adjusting bracket (6). An adjusting column (50) is installed between the two sets of roller brackets (4). The adjusting column (50) is slidably connected to the inclined height adjustment groove (60). A connecting frame (61) is detachably installed at one end of the adjusting bracket (6). The connecting frame (61) is connected to the fixing block (3) by fixing screws (62).
2. The adjustable roller for a sliding door according to claim 1, characterized in that: Each set of roller brackets (4) has a connecting column (51) installed in the middle position. The two outer side walls of the adjusting bracket (6) are respectively provided with mounting holes (63). The connecting column (51) and the mounting hole (63) are detachably connected.
3. The adjustable roller for a sliding door according to claim 1, characterized in that: The roller is equipped with a bearing and a fixing post (52). The fixing post (52) passes through the bearing and its two ends are fixedly connected to the inner wall of the roller bracket (4).
4. The adjustable roller for a sliding door according to claim 1, characterized in that: The outer shell of the roller (5) and the adjusting bracket (6) are both made of stainless steel.
5. An adjustable roller for a sliding door according to claim 1, characterized in that: A mounting column (7) is installed between the connecting frame (61) and the adjusting bracket (6); the two ends of the connecting column (51) are detachably connected to the left housing (1) and the right housing (2) respectively; the two ends of the adjusting column (50) are detachably connected to the left housing (1) and the right housing (2) respectively.