A sliding door assembly

Abstract

This application relates to a sliding door assembly, belonging to the field of door and window hardware technology. It includes several support blocks, which are detachably connected to the bottom frame of the door frame via fasteners. These support blocks are arranged along the sliding direction of the sliding door. Support rollers are rotatably connected to each support block. A support rail is installed at the bottom of the sliding door's mounting frame, and the support rail simultaneously supports multiple support rollers. This application allows for the maintenance and replacement of the rollers without disassembling the glass door, improving the convenience of sliding door maintenance.

Description

Technical Field

[0001] This application relates to the field of door and window hardware technology, and in particular to a sliding door assembly. Background Technology

[0002] In existing sliding door structures, rollers are typically installed at the bottom of the glass mounting frame, and the rollers support the bottom of the door frame to enable the sliding door to move. However, over long-term use, the rollers may wear out or malfunction, causing uneven sliding. When repair or replacement of the rollers is needed, it is often necessary to disassemble the entire glass window, which not only increases the difficulty of repair but may also damage the glass. This is especially true for large glass doors and windows, where disassembly and reinstallation require a lot of manpower, are cumbersome, and have low repair efficiency. Utility Model Content

[0003] In order to enable the maintenance and replacement of pulleys without disassembling the glass door, thereby improving the convenience of sliding door maintenance, this application provides a sliding door assembly.

[0004] The sliding door assembly provided in this application adopts the following technical solution:

[0005] A sliding door assembly includes several support blocks, which are detachably connected to the bottom frame of the door frame by fasteners. The support blocks are arranged along the sliding direction of the sliding door. Support rollers are rotatably connected to the support blocks. A support rail is installed at the bottom of the mounting frame of the sliding door, and the support rail is supported on the multiple support rollers.

[0006] By adopting the above technical solution, the support rollers are used to support the support rails of the sliding door, and the smooth sliding of the sliding door is achieved by the rotation of the rollers. When the sliding door does not move smoothly, the sliding door can be pushed away from the fault point, and then the support roller at the fault point can be inspected separately. After finding the faulty support roller, the corresponding support block can be removed from the door frame for repair or replacement. This allows for the repair and replacement of the pulleys without disassembling the glass door, improving the convenience of sliding door maintenance.

[0007] Optionally, the fixing member includes an abutment protrusion disposed within the bottom frame of the door frame, the support block is rotatably connected to a clamping block, the support block and the clamping block are threadedly connected to a fixing bolt, the clamping block is located between the two abutment protrusions, and the clamping block can be rotated to clamp against the two abutment protrusions simultaneously.

[0008] By adopting the above technical solution, since the support block is fixed by the cooperation of the clamping block and the abutment protrusion, there is no need to perform additional drilling operations in the bottom frame of the door frame. Moreover, the hole-free design is highly flexible, and the position of the support block can be adjusted according to the load-bearing capacity of the sliding door and the usage requirements.

[0009] Optionally, the support roller has a support groove along its circumference, and the bottom of the support rail is supported in the support groove.

[0010] By adopting the above technical solution, the support groove effectively prevents the lateral displacement of the support rail by providing a specific guiding position for the support rail, thereby ensuring the smooth operation of the sliding door.

[0011] Optionally, the abutting block is a quadrilateral shape with central symmetry. The two abutting protrusions are symmetrically arranged along the center line of the bottom frame of the door frame. The two opposite corners of the abutting block abut against the two abutting protrusions at the same time. The corners of the abutting block are set as chamfers.

[0012] By adopting the above technical solution, since the clamping block is a centrally symmetrical quadrilateral shape, when the two opposite corners of the clamping block abut against the two abutting protrusions respectively, the force is evenly distributed, providing a stable fixing effect. The symmetrical structure makes the support block less prone to tilting or loosening after installation, further improving the stability of the entire sliding assembly. It also helps to accurately center and fix the support block within the bottom frame of the door frame, while the chamfered corner design reduces damage to the abutting protrusions.

[0013] Optionally, the support block has a first mounting groove on both sides, the support roller is located in the mounting groove, the support block has a second mounting groove at the bottom, the second mounting groove extends to both ends of the mounting block, the abutting protrusion is located below the second mounting groove, and the clamping block is located in the second mounting groove.

[0014] By adopting the above technical solution, the first mounting groove is used to accommodate the support roller without occupying additional space outside or around the support block. The second mounting groove is used to accommodate the abutting block, and the abutting protrusion is located below the second mounting groove. This groove layout effectively concentrates the abutting block and the abutting protrusion, reducing the space occupied by the bottom frame of the door frame.

[0015] Optionally, the bottom of the support block is supported on the bottom wall of the bottom frame of the door frame, and the bottom of the support roller is higher than the bottom of the support block.

[0016] By adopting the above technical solution, this design ensures that the support rollers do not directly contact the inner wall of the bottom frame. This reduces friction between the rollers and other surfaces as they slide on the support rail, improving the smoothness of the sliding door's movement. Furthermore, reducing direct friction between the support rollers and the bottom frame prevents wear and tear on both during long-term use, thus extending the service life of the support rollers. Simultaneously, it effectively reduces noise caused by friction, maintaining quiet operation of the sliding door.

[0017] Optionally, a number of cover plates are provided inside the bottom frame of the door frame. The adjacent cover plates are spliced ​​together, and the number of cover plates together cover all the support blocks. The cover plates are provided with mounting holes for the support rollers to pass through.

[0018] By adopting the above technical solution, the cover plate covers all the support blocks, effectively preventing dust and debris from entering the bottom frame and avoiding wear on the support rollers and support blocks. This not only reduces the frequency of cleaning and maintenance but also benefits the service life of the entire sliding door assembly. Moreover, the cover plate design makes the bottom frame look cleaner, concealing the internal mechanical structure and enhancing the overall aesthetics of the sliding door system.

[0019] Optionally, the length of the mounting opening is greater than the outer diameter of the support roller.

[0020] By adopting the above technical solution, slight errors in the positioning of the support blocks may occur during installation. If the size of the mounting opening is precisely matched with the outer diameter of the support roller, the installation position requirements for each support block would be extremely stringent. However, such precise positioning does not benefit the use of the sliding door and significantly increases construction difficulty and time consumption. Therefore, by designing the mounting opening to be slightly larger than the outer diameter of the support roller, a certain range of error is allowed during the installation of the support blocks. This reduces the stringent requirements for precise positioning, lowers construction difficulty, and improves efficiency without affecting the sliding performance of the sliding door. Furthermore, it reduces wear between the support roller and the mounting opening, thus extending the service life of the support roller.

[0021] Optionally, a first limiting plate is installed on the two inner side walls of the bottom frame of the door frame, and the first limiting plate is disposed near the side wall of the cover plate.

[0022] By adopting the above technical solution, the first limiting plate effectively restricts the lateral movement range of the cover plate, thus preventing contact between the cover plate and the side of the support roller. This not only reduces friction between the roller and the cover plate, ensuring smooth operation of the support roller, but also prevents wear caused by friction, extending the service life of the support roller and the cover plate.

[0023] Optionally, a second limiting plate is installed on the two inner side walls of the bottom frame of the door frame. When the bottom frame of the sliding door is installed inside the door frame, the second limiting plate is positioned directly opposite the side wall of the bottom frame of the sliding door and close to the bottom frame of the sliding door. When the support rail is offset towards the side of the support roller, the second limiting plate contacts the side wall of the bottom frame of the sliding door.

[0024] By adopting the above technical solution, when the support rail deviates, the second limiting plate will contact the side wall of the bottom frame of the sliding door, which will promptly limit its further deviation and prevent the support rail from derailing from the support roller, thereby improving the safety and stability of the entire sliding door system.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Support rollers are used to support the support rails of sliding doors and achieve smooth sliding of the sliding doors through the rotation of the rollers. When the sliding door does not move smoothly, the sliding door can be pushed away from the fault point, and then the support roller at the fault point can be checked separately. After finding the faulty support roller, the corresponding support block can be removed from the door frame for repair or replacement. This allows for the repair and replacement of the rollers without disassembling the glass door, improving the convenience of sliding door maintenance.

[0027] 2. Since the support block is fixed by the cooperation of the clamping block and the abutment protrusion, there is no need to make additional drilling operations in the bottom frame of the door frame. Moreover, the hole-free design is highly flexible, and the position of the support block can be adjusted according to the load-bearing capacity of the sliding door and the usage requirements.

[0028] 3. The cover plate covers all the support blocks, effectively preventing dust, debris, and other contaminants from entering the bottom frame and avoiding wear on the support rollers and blocks. This not only reduces the frequency of cleaning and maintenance but also extends the lifespan of the entire sliding door assembly. Furthermore, the cover plate design makes the bottom frame look cleaner, concealing the internal mechanical structure and enhancing the overall aesthetics of the sliding door system.

[0029] 4. The first limiting plate effectively restricts the lateral movement range of the cover plate, preventing contact between the cover plate and the side of the support rollers. When the support rail shifts, the second limiting plate will contact the side wall of the sliding door bottom frame, promptly limiting further shifting. This helps to improve the service life of the support rollers and enhances the safety and stability of the sliding door system. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram illustrating the structure of the support block and support rollers in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram illustrating the structure of the clamping block in an embodiment of this application.

[0033] Figure 4 This is a schematic diagram illustrating the structure of the first limiting plate and the second limiting plate in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Support block; 11. First mounting groove; 12. Rotating shaft; 13. Second mounting groove; 2. Support roller; 21. Support groove; 3. Fixing element; 31. Abutting protrusion; 32. Pressing block; 33. Fixing bolt; 4. Cover plate; 41. Mounting port; 5. First limiting plate; 6. Support rail; 7. Second limiting plate Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application discloses a sliding door assembly.

[0037] like Figure 1 The sliding door assembly includes several support blocks 1 (only one is shown in the figure). The several support blocks 1 are detachably connected to the bottom frame of the door frame by fasteners 3. The several support blocks 1 are arranged along the sliding direction of the sliding door. That is, in this embodiment, the several support blocks 1 are arranged at equal intervals along the length direction of the bottom frame of the door frame, and the support blocks 1 are symmetrically arranged about the center line of the length direction of the bottom frame of the door frame.

[0038] like Figure 2 and Figure 3 The support block 1 has two first mounting slots 11 on each side, which correspond one-to-one. Two rotating shafts 12 are inserted inside the support block 1, with their ends extending into the corresponding first mounting slots 11. Support rollers 2 are coaxially fixed to the ends of the rotating shafts 12, and are located within the first mounting slots 11. Thus, the support block 1 and the support rollers 2 form a sliding trolley. The support rollers 2 have support grooves 21 along their circumference, and their tops are higher than the top surface of the support block 1. The bottom of the support block 1 is supported on the bottom wall of the door frame. A second mounting slot 13 is formed at the bottom of the support rollers 2, extending to both the front and rear ends of the support block 1.

[0039] like Figure 2 , Figure 3 and Figure 4 The fastener 3 includes an abutment protrusion 31, which is disposed within the bottom frame of the door frame. In this embodiment, there are two abutment protrusions 31, which are arranged along the length of the bottom frame of the door frame and both abutment protrusions 31 pass through the second mounting groove 13. The two abutment protrusions 31 are symmetrically arranged about the center line of the bottom frame of the door frame. In other embodiments, there may be multiple sets of abutment protrusions 31, with two abutment protrusions 31 in each set, and each set of abutment protrusions 31 corresponds to a support block 1.

[0040] The support block 1 is rotatably connected to a clamping block 32. In this embodiment, there are two clamping blocks 32. The two clamping blocks 32 are symmetrically arranged about the center line of the width direction of the support block 1. The clamping blocks 32 are rotatably connected to the bottom of the support block 1 and are located in the second mounting groove 13. The support block 1 and the clamping blocks 32 are threadedly connected to a fixing bolt 33. The clamping blocks 32 are located between two abutting protrusions 31. The clamping blocks 32 can be rotated to abut against the two abutting protrusions 31 at the same time.

[0041] In other embodiments, the abutment block 32 may also be rotatably connected to the support block 1, and the abutment block 32 may extend from both sides of the support block 1, while the abutment protrusion 31 may also be installed on the inner side wall of the bottom frame of the door frame.

[0042] The clamping block 32 is a quadrilateral-like shape with central symmetry, and the center point of each clamping block 32 is located on the same vertical plane along the center line of the length direction of the clamping block 32. The quadrilateral-like shape can be a cube, cuboid, parallelogram, or rhombus. In the embodiment of this application, the quadrilateral-like shape can be a rhombus. The two opposite corners of the clamping block 32 simultaneously abut against the two abutting protrusions 31, and the corners of the clamping block 32 are set as chamfered.

[0043] like Figure 1 and Figure 4 The bottom frame of the door frame is covered with several cover plates 4. Adjacent cover plates 4 are spliced ​​together and set along the length of the bottom frame of the door frame. Several cover plates 4 together cover all the support blocks 1. The cover plates 4 have mounting holes 41 for the support rollers 2 to pass through. The length of the mounting hole 41 is greater than the outer diameter of the support rollers 2, and the width of the mounting hole 41 is greater than the thickness of the support rollers 2.

[0044] First limiting plates 5 are installed on the two inner side walls of the bottom frame of the door frame. The two first limiting plates 5 are arranged opposite each other and are located near the side wall of the cover plate 4. A support rail 6 is installed at the bottom of the mounting frame of the sliding door. The support rail 6 is supported on multiple support rollers 2, and the bottom of the support rail 6 is supported in the support groove 21. Second limiting plates 7 are installed on the two inner side walls of the bottom frame of the door frame. The two second limiting plates 7 are arranged opposite each other. When the bottom frame of the sliding door is installed inside the door frame, the second limiting plates 7 are facing the side wall of the bottom frame of the sliding door and are located near the bottom frame of the sliding door. When the support rail 6 is offset towards the side of the support roller 2 (in the thickness direction of the support roller 2), the second limiting plates 7 contact the side wall of the bottom frame of the sliding door.

[0045] The implementation principle of this application embodiment is as follows: the support roller 2 is used to support the support rail 6 of the sliding door, and the smooth sliding of the sliding door is achieved by the rotation of the support roller 2. When the sliding door moves unsmoothly, the sliding door can be pushed away from the fault point, and then the support roller 2 at the fault point can be checked separately. After finding the faulty support roller 2, the corresponding cover plate 4 is removed, the fixing bolt 33 is loosened, and the corresponding support block 1 is removed from the door frame separately for repair or replacement. This allows for the repair and replacement of the pulley without disassembling the glass door, improving the convenience of sliding door maintenance.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sliding door assembly, characterized by: It includes several support blocks (1), which are detachably connected to the bottom frame of the door frame by fasteners (3). The support blocks (1) are arranged along the sliding direction of the sliding door. Support rollers (2) are rotatably connected to the support blocks (1). A support rail (6) is installed at the bottom of the mounting frame of the sliding door. The support rail (6) is supported on multiple support rollers (2).

2. The sliding door assembly of claim 1, wherein: The fixing member (3) includes an abutment protrusion (31) which is located inside the bottom frame of the door frame. The support block (1) is rotatably connected to a clamping block (32). The support block (1) and the clamping block (32) are threadedly connected to a fixing bolt (33). The clamping block (32) is located between the two abutment protrusions (31) and can be rotated to clamp simultaneously with the two abutment protrusions (31).

3. The sliding door assembly of claim 1, wherein: The support roller (2) has a support groove (21) along its circumference, and the bottom of the support rail (6) is supported in the support groove (21).

4. The sliding door assembly of claim 2, wherein: The abutting block (32) is a quadrilateral shape with central symmetry. The two abutting protrusions (31) are symmetrically arranged along the center line of the bottom frame of the door frame. The two opposite corners of the abutting block (32) abut against the two abutting protrusions (31) respectively. The corners of the abutting block (32) are set as chamfers.

5. A sliding door assembly according to any one of claims 2 or 4, wherein: The support block (1) has a first mounting groove (11) on both sides, the support roller (2) is located in the first mounting groove (11), the support block (1) has a second mounting groove (13) at the bottom, the second mounting groove (13) extends to both ends of the support block (1), the abutting protrusion (31) is located below the second mounting groove (13), and the clamping block (32) is located in the second mounting groove (13).

6. The sliding door assembly according to any one of claims 2-4, characterized in that: The bottom of the support block (1) is supported on the bottom wall of the bottom frame of the door frame, and the bottom of the support roller (2) is higher than the bottom of the support block (1).

7. The sliding door assembly according to claim 1, characterized in that: The bottom frame of the door frame is provided with several cover plates (4), and the adjacent cover plates (4) are spliced ​​together. The several cover plates (4) together cover all the support blocks (1). The cover plates (4) are provided with mounting holes (41) for the support rollers (2) to pass through.

8. The sliding door assembly according to claim 7, characterized in that: The length of the mounting port (41) is greater than the outer diameter of the support roller (2).

9. The sliding door assembly according to claim 7, characterized in that: The bottom frame of the door frame is provided with two inner side walls of a first limiting plate (5), which is located near the side wall of the cover plate (4).

10. The sliding door assembly according to claim 3, characterized in that: A second limiting plate (7) is installed on the two inner side walls of the bottom frame of the door frame. When the bottom frame of the sliding door is installed inside the door frame, the second limiting plate (7) is facing the side wall of the bottom frame of the sliding door and is located close to the bottom frame of the sliding door. When the support rail (6) is offset to the side of the support roller (2), the second limiting plate (7) contacts the side wall of the bottom frame of the sliding door.

Images