Rail concealed sliding door

Abstract

This utility model discloses a sliding door with a retractable track, including a bottom track, several grooves set on the bottom track, and a sliding door set in the grooves and movable along the grooves. A limiting plate is provided on the left or right side wall of each groove, the limiting plate being located at the top of the groove and arranged along its length. Several cover plates are hinged to the side wall of the groove opposite to the limiting plate, which can abut against the limiting plate to cover and block the opening above the groove. The bottom of the sliding door has a push plate structure that can push the cover plates upward to rotate. In this way, the several cover plates cooperate to cover and block the opening above the groove, preventing the groove from being exposed and causing dust, hair, debris, and other impurities to accumulate inside, making cleaning difficult. Simultaneously, the push plate structure pushes the cover plates upward to rotate, thus creating a gap for the support seat to pass through, thereby avoiding obstruction of the opening or closing of the sliding door.

Description

Technical Field

[0001] This utility model relates to the technical field of sliding doors, and in particular to a sliding door with a concealable track. Background Technology

[0002] Sliding doors, with their space-saving, aesthetically pleasing, and practical features, are widely used in the construction and decoration industry, covering various scenarios such as residential, commercial offices, and industrial applications. In current technology, the track on the bottom rail is typically exposed to the external environment. This structure has several drawbacks: firstly, dust and debris can easily enter the track through the opening above it, affecting not only the smoothness of the door's movement but also accelerating wear between the door's moving parts and the track, thus shortening the equipment's lifespan; secondly, exposed tracks are unsightly and increase the difficulty and frequency of daily cleaning, causing inconvenience to users.

[0003] Patent application CN119981600A discloses a sliding door with a retractable track. It features baffles on both sides of the sliding track, which are opened by a pusher plate and reset by a return spring, thus covering the opening above the track. While this solution addresses the issue of exposed tracks on the bottom rail, its structure is complex. The need for baffles on both sides of the track requires a large number of baffles and high installation precision, making assembly difficult. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a sliding door with a concealable track and a simple structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A sliding door with a retractable track includes a bottom track, several grooves on the bottom track, and a door body disposed within the grooves and movable along the grooves. A limiting plate is provided on the left or right side wall of the groove, the limiting plate being disposed at the top of the groove and arranged along its length. Several cover plates are hinged to the side wall of the groove opposite to the limiting plate, which can abut against the limiting plate to cover and block the opening above the groove. The bottom of the door body is provided with a push plate structure that can push the cover plates to rotate upward.

[0007] In a preferred embodiment of this utility model, a plurality of connectors are spaced apart on the left or right side wall of the slide, and a connecting shaft is provided inside the connector to connect the plurality of connectors in series. A bushing is fitted between two adjacent connectors on the connecting shaft, and the cover plate includes a hinge joint disposed at its bottom and hinged to the bushing.

[0008] In a preferred embodiment of this utility model, the top of the connector is provided with a first opening so that the shape of the connector is C-shaped; the bottom of the hinge is provided with a second opening so that the shape of the hinge is C-shaped.

[0009] In a preferred embodiment of this utility model, the bottom of the cover plate protrudes downward to form a convex part, the convex part is hollow to form a cavity, and a counterweight is provided in the cavity.

[0010] In a preferred embodiment of this utility model, the protruding end of the limiting plate is provided with a limiting groove that cooperates with the cover plate, and the upper surface of the cover plate is flush with the upper surface of the limiting plate.

[0011] In a preferred embodiment of this utility model, the sliding door includes a support base disposed in the slide groove and movable along the slide groove. The support base includes an upper support base disposed at the top and above the cover plate, a lower support base disposed at the bottom and below the cover plate, and a support plate disposed between the upper support base and the lower support base. The push plate structure includes a first push plate disposed at the front side of the support plate and a second push plate disposed at the rear side of the support plate.

[0012] In a preferred embodiment of this utility model, the lengths of the upper support seat and the lower support seat are both longer than the length of the support plate. The upper support seat and the lower support seat both extend from the front and rear ends of the support plate, so that the front side of the support seat forms a first groove for assembling the first push plate and the rear side forms a second groove for assembling the second push plate.

[0013] In a preferred embodiment of this utility model, the front side of the upper support base is provided with a first slot for positioning the first push plate, the front side of the lower support base is provided with a second slot for positioning the first push plate, the rear side of the upper support base is provided with a third slot for positioning the second push plate, and the rear side of the lower support base is provided with a fourth slot for positioning the second push plate.

[0014] In a preferred embodiment of the present utility model, both the first push plate and the second push plate are formed by bending non-magnetic plates, such that the first push plate and the second push plate are U-shaped. Magnetic blocks are respectively provided in the first push plate and the second push plate, and the counterweight is made of a magnetic material; the first push plate is arranged in the first first groove to tilt backward, the upper end of the first push plate is arranged in the first clamping groove, and the lower end of the first push plate is arranged in the second clamping groove; the second push plate is arranged in the second groove to tilt forward, the upper end of the second push plate is arranged in the third clamping groove, and the lower end of the second push plate is arranged in the fourth clamping groove.

[0015] In a preferred embodiment of the present utility model, the number of the sliding grooves is two, a partition plate for separating the two sliding grooves is provided in the middle of the bottom rail, the partition plate is shaped like a Chinese character "gan", the partition plate comprises a first plate section arranged at the top and a second plate section arranged below the first plate section, the length of the second plate section is longer than that of the first plate section, and the connecting head is arranged on the protruding end of the second plate section.

[0016] The beneficial effects of the present utility model are: the opening above the sliding groove is covered and blocked by the cooperation of a plurality of cover plates, so as to prevent the sliding groove from being exposed, which causes sundries such as dust, hair and crumbs to accumulate inside the sliding groove and is difficult to clean; meanwhile, the push plate structure pushes the cover plates to rotate upward, so as to form a gap for the support base to pass through, thereby avoiding obstructing the opening or closing of the sliding door. Description of Drawings

[0017] Figure 1 is a schematic diagram of the present utility model;

[0018] Figure 2 is an exploded schematic view of the cover plate, connecting shaft and shaft sleeve in the present utility model;

[0019] Figure 3 is a schematic diagram of the cover plate in the present utility model;

[0020] Figure 4 is an assembly schematic diagram of the bottom rail and the cover plate in the present utility model;

[0021] Figure 5 is a schematic diagram of the support base and the push plate structure in the present utility model;

[0022] Figure 6 is a schematic diagram of the first push plate in the present utility model. Detailed Description of the Embodiments

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Reference Figures 1 to 6A sliding door with a concealable track includes a bottom track 1, several grooves 11 set on the bottom track 1, and a door body set within the grooves 11 and movable along the grooves 11. A limiting plate 12 is provided on the left or right side wall of the groove 11, the limiting plate 12 being located at the top of the groove 11 and arranged along its length. Several cover plates 2 are hinged to the side wall of the groove 11 opposite to the limiting plate 12, covering and blocking the opening above the groove 11. The bottom of the door body has a push plate structure 3 that can push the cover plates 2 upwards. In this way, the cover plates 2 cover and block the opening above the groove 11, preventing the groove 11 from being exposed and accumulating dust, hair, debris, and other impurities, making cleaning difficult. Simultaneously, the push plate structure 3 pushes the cover plates 2 upwards, so that when the sliding door passes over the corresponding cover plate 2, the cover plate 2 opens without obstructing passage.

[0025] Reference Figure 1 and Figure 2 In this design, the left or right side wall of the slide 11 is provided with a plurality of connectors 13 at intervals. Each connector 13 contains a connecting shaft 4 that connects the connectors 13 in series. A bushing 5 is fitted between adjacent connectors 13 on the connecting shaft 4. The cover plate 2 includes a hinge joint 21 located at its bottom and hinged to the bushing 5. This allows the cover plate 2 to rotate smoothly on the connecting shaft 4, facilitating the pusher structure 3 to push it.

[0026] Reference Figures 1 to 3 In this design, the top of the connector 13 has a first opening 131, making the connector 13 C-shaped; the bottom of the hinge joint 21 has a second opening 211, making the hinge joint 21 C-shaped. This allows the connector 4 to be directly fastened onto the connector 13 after the corresponding bushing 5 is fitted onto the connector 4, thus completing the assembly of the connector 4. Then, the cover plate 2 is directly fastened onto the bushing 5 through the hinge joints 21 on it, thus completing the assembly of the cover plate 2. This not only facilitates installation but also makes disassembly and maintenance convenient.

[0027] Reference Figure 3In this design, the bottom of the cover plate 2 protrudes downward to form a convex portion 22, and the interior of the convex portion 22 is hollow to form a cavity 23. A counterweight 24 is provided within the cavity 23. This counterweight 24 facilitates the downward rotation of the cover plate 2 for resetting, allowing it to smoothly rotate downward and reset after the sliding door has passed, then close onto the limiting plate 12. The counterweight 24 can be made of a high-density metal material such as a magnet or an iron block. Furthermore, the resetting structure of the cover plate can not only rely on the counterweight but also include a reset spring fitted onto the connecting shaft 4. One end of the reset spring abuts against the cover plate 2, and the other end abuts against the side wall of the slide groove 11, thereby allowing the cover plate to close downward and reset.

[0028] Reference Figure 1 In this design, the extended end of the limiting plate 12 is provided with a limiting groove 121 that mates with the cover plate 2, and the upper surface of the cover plate 2 is flush with the upper surface of the limiting plate 12. This ensures that when the cover plate 2 is placed on the limiting part, there will be no protruding or recessed parts, thus making the surface of the bottom rail 1 look flatter and more aesthetically pleasing.

[0029] Reference Figure 1 and Figure 5 In this solution, the sliding door includes a support base 6 disposed in the slide groove 11 and movable along the slide groove 11. The support base 6 includes an upper support base 61 disposed at the top and above the cover plate 2, a lower support base 62 disposed at the bottom and below the cover plate 2, and a support plate 63 disposed between the upper support base 61 and the lower support base 62. The push plate structure 3 includes a first push plate 31 disposed at the front side of the support plate 63 and a second push plate 32 disposed at the rear side of the support plate 63. The first push plate 31 has a rearward inclined surface that can push the cover plate 2 upward, and the second push plate 32 has a forward inclined surface that can push the cover plate 2 upward. When the support base 6 moves back and forth within the slide groove 11, the first push plate 31 on the front side or the second push plate 32 on the rear side will push the cover plate 2 upward, creating a gap that allows the support plate 63 to pass through, thus avoiding obstruction of the support base 6's back and forth movement. Furthermore, the first push plate 31 or the second push plate 32 located on the rear side of the movement direction will limit the closing speed of the cover plate 2, preventing it from closing immediately, thereby reducing noise during production. The first push plate 31, the second push plate 32, and the support plate 63 can be designed separately or as a single unit.

[0030] Of course, the driving mechanism is not limited to the contact driving mechanism described above, but can also be a non-contact driving mechanism, such as setting the counterweight 24 as a magnetic block, and providing a magnetic push plate on the support plate 63. The magnetic push plate is in a horizontal state and is lower than the cover plate 2, and a magnetic block that repels the magnetic block at the bottom of the cover plate 2 is embedded in the magnetic push plate, thereby pushing the cover plate 2 to rotate upward.

[0031] Reference Figure 5 In this design, the lengths of both the upper support 61 and the lower support 62 are longer than the length of the support plate 63. Both the upper support 61 and the lower support 62 extend beyond the front and rear ends of the support plate 63, forming a first groove 64 on the front side of the support 6 for assembling the first push plate 31 and a second groove 65 on its rear side for assembling the second push plate 32. This allows the push plate structure 3 to be housed inside the support 6 without protruding, eliminating the need for space on the front and rear sides of the bottom rail 1 to accommodate the first push plate 31, resulting in a more compact structure. Preferably, the front side of the upper support 61 has a first slot 611 for positioning the first push plate 31, and the front side of the lower support 62 has a second slot 621 for positioning the first push plate 31; the rear side of the upper support 61 has a third slot 612 for positioning the second push plate 32, and the rear side of the lower support 62 has a fourth slot 622 for positioning the second push plate 32.

[0032] Reference Figure 5 and Figure 6 In this design, the first push plate 31 and the second push plate 32 are both formed by bending non-magnetic sheet material (304 stainless steel) to make the shape of the first push plate 31 and the second push plate 32 U-shaped. The first push plate 31 and the second push plate 32 are both provided with magnetic blocks 7. The counterweight 24 is made of magnetic material. Through the mutual attraction between the magnetic blocks 7 and the counterweight 24, the cover plate 2 will not be affected by any deviation in position when it is reset, which would affect its downward rotation and prevent it from fitting well on the limiting plate 12, thus affecting its sealing performance. Specifically, the first push plate 31 is inclined backward in the first groove 64 to form a backward-inclined pushing surface. The upper end of the first push plate 31 is attached to the first slot 611 by adhesive, and the lower end of the first push plate 31 is attached to the second slot 621 by adhesive. The second push plate 32 is inclined forward in the second groove 65 to form a forward-inclined pushing surface. The upper end of the second push plate 32 is attached to the third slot 612 by adhesive, and the lower end of the second push plate 32 is attached to the fourth slot 622 by adhesive.

[0033] Reference Figure 1 and Figure 2In this design, there are two slide grooves 11. A partition 14 separates the two slide grooves 11 in the middle of the bottom rail 1. The partition 14 is U-shaped and includes a first plate 141 at the top and a second plate 142 below the first plate 141. The second plate 142 is longer than the first plate 141. The connector 13 is located on the extended end of the second plate 142. The upper surface of the cover plate 2 is flush with the upper surface of the first plate 141, and both surfaces have inclined surfaces at their mating points. This design ensures that the cover plate 2 fits snugly against the bottom rail 1, preventing large gaps between the cover plate 2 and the bottom rail 1. Furthermore, a sealing strip is applied to the surface of the cover plate 2 or the partition 14 to reduce noise during rotation and collision. Of course, the number of grooves 11 can be set according to the actual situation. There can be one or more grooves, and the shape of the corresponding partition 14 can also be adjusted accordingly. It can be F-shaped, T-shaped, or a combination of both.

[0034] The sliding door operates as follows when it moves back and forth:

[0035] When a horizontal forward pushing force is applied to the sliding door, the support seat 6 will move forward along the slide groove 11. As the first push plate 31 gradually approaches the cover plate 2 in the forward direction, the cover plate 2 will be gradually pushed upward by the pushing inclined surface on it, thereby pushing the cover plate 2 to rotate upward, so that a gap is formed above the slide groove 11 for the support plate 63 to pass through.

[0036] Then, as it continues to move forward, the cover plate 2 will move to the support plate 63 and abut against its side wall, thus forming a stable support and preventing the cover plate 2 from falling back due to gravity and obstructing the passage of the support base 6.

[0037] When the support seat 6 moves away from the cover plate 2, the cover plate 2 will move to the second push plate 32. The pushing slope on the second push plate 32 will cause the cover plate 2 to slowly rotate downwards and will not immediately close to the limit plate 12.

[0038] Similarly, the process of a sliding door moving backward is similar.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sliding door with a retractable track, comprising a bottom track (1), a plurality of grooves (11) disposed on the bottom track (1), and a sliding door disposed within the grooves (11) and movable along the grooves (11), characterized in that, A limiting plate (12) is provided on the left or right side wall of the slide (11). The limiting plate (12) is located on the top of the slide (11) and arranged along its length. Several cover plates (2) are hinged to the side wall of the slide (11) on the side opposite to the limiting plate (12) to cover and block the opening above the slide (11). The bottom of the sliding door is provided with a push plate structure (3) that can push the cover plate (2) to rotate upward.

2. A sliding door with a concealable track according to claim 1, characterized in that, The slide (11) has a number of connectors (13) spaced apart on the left or right side wall. The connectors (13) have a connecting shaft (4) that connects the connectors (13) in series. The connecting shaft (4) is fitted with a bushing (5) between two adjacent connectors (13). The cover plate (2) includes a hinge joint (21) located at its bottom and hinged to the bushing (5).

3. A sliding door with a concealable track according to claim 2, characterized in that, The connector (13) has a first opening (131) at the top so that the connector (13) is C-shaped; the hinge (21) has a second opening (211) at the bottom so that the hinge (21) is C-shaped.

4. A sliding door with a concealable track according to claim 2, characterized in that, The bottom of the cover plate (2) protrudes downward to form a protrusion (22), and the interior of the protrusion (22) is hollow to form a cavity (23), and a counterweight (24) is provided in the cavity (23).

5. A sliding door with a concealable track according to claim 2, characterized in that, The extended end of the limiting plate (12) is provided with a limiting groove (121) that cooperates with the cover plate (2), and the upper surface of the cover plate (2) is flush with the upper surface of the limiting plate (12).

6. A sliding door with a concealable track according to claim 4, characterized in that, The sliding door includes a support base (6) disposed in the slide groove (11) and movable along the slide groove (11). The support base (6) includes an upper support base (61) disposed at the top and above the cover plate (2), a lower support base (62) disposed at the bottom and below the cover plate (2), and a support plate (63) disposed between the upper support base (61) and the lower support base (62). The push plate structure (3) includes a first push plate (31) disposed at the front side of the support plate (63) and a second push plate (32) disposed at the rear side of the support plate (63).

7. A sliding door with a concealable track according to claim 6, characterized in that, The lengths of the upper support (61) and the lower support (62) are both longer than the length of the support plate (63). The upper support (61) and the lower support (62) extend from the front and rear ends of the support plate (63) so that the front side of the support (6) forms a first groove (64) for assembling the first push plate (31) and the rear side forms a second groove (65) for assembling the second push plate (32).

8. A sliding door with a concealable track according to claim 7, characterized in that, A first clamping slot (611) for positioning the first push plate (31) is provided on the front side of the upper support base (61), and a second clamping slot (621) for positioning the first push plate (31) is provided on the front side of the lower support base (62); a third clamping slot (612) for positioning the second push plate (32) is provided on the rear side of the upper support base (61), and a fourth clamping slot (622) for positioning the second push plate (32) is provided on the rear side of the lower support base (62).

9. A sliding door with a concealable track according to claim 8, characterized in that, Both the first push plate (31) and the second push plate (32) are formed by bending non-magnetic plates, so that the first push plate (31) and the second push plate (32) are U-shaped, a magnetic block (7) is arranged in each of the first push plate (31) and the second push plate (32), and the counterweight (24) is made of a magnetic material; the first push plate (31) is arranged in the first groove (64) in a backward inclined manner, the upper end of the first push plate (31) is arranged in the first clamping slot (611), and the lower end of the first push plate (31) is arranged in the second clamping slot (621); the second push plate (32) is arranged in the second groove in a forward inclined manner, the upper end of the second push plate (32) is arranged in the third clamping slot (612), and the lower end of the second push plate (32) is arranged in the fourth clamping slot (622).

10. A sliding door with a concealable track according to any one of claims 2 to 9, characterized in that, The number of the sliding grooves (11) is two, a partition plate (14) for separating the two sliding grooves (11) is arranged in the middle of the bottom rail (1), the partition plate (14) is in a dry-shaped structure, the partition plate (14) comprises a first plate section (141) arranged at the top and a second plate section (142) arranged below the first plate section (141), the length of the second plate section (142) is longer than that of the first plate section (141), and the connecting head (13) is arranged on the protruding end of the second plate section (142).

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