An automatically closing heavy sliding door guide

Abstract

The application provides an automatic-closing heavy sliding door guide rail, belonging to the technical field of doors and windows, comprising a lower rail structure, wherein the lower rail structure comprises a rail groove arranged on the ground, the top of the rail groove is symmetrically provided with a shielding cover on both sides, the shielding cover is swingably arranged on the side wall of the rail groove, a torsion spring is arranged between the shielding cover and the rail groove to resist the downward swing of the shielding cover, and the shielding covers on both sides of the rail groove are gap-fitted and shield the rail groove when both of them swing upward. The rail groove is arranged on the ground, the shielding cover is arranged on the rail groove to shield the rail groove, the rail groove is automatically opened by the door leaf when the door leaf moves, and the shielding cover is reset under the action of the torsion spring and shields the rail groove again after the door leaf passes, so that the hidden rail is realized, the person is not tripped and the object is not affected to slide through, and the device is more beautiful.

Description

Technical Field

[0001] This invention belongs to the field of door and window technology, and in particular relates to an automatic closing heavy-duty sliding door guide rail. Background Technology

[0002] Sliding doors are a common type of door in homes, referring to doors that can be pushed and pulled. With the development of technology and the diversification of decoration methods, sliding doors have evolved from traditional panel surfaces to glass, fabric, rattan, and aluminum alloy profiles, and from sliding doors and folding doors to partition doors, the functions and applications of sliding doors are constantly expanding.

[0003] However, existing sliding door tracks are all installed on the ground and protrude from the track, which can easily cause people to trip and affect the sliding passage of objects, while also affecting the overall appearance of the decoration. Summary of the Invention

[0004] Based on the aforementioned problems in the existing technology, the present invention provides an automatic closing heavy-duty sliding door guide rail, including a lower rail structure. The lower rail structure includes a rail groove set on the ground. A cover is symmetrically installed on both sides of the top of the rail groove. The cover is installed on the side wall of the rail groove by swinging up and down. A torsion spring is provided between the cover and the rail groove to resist the downward swing of the cover. When the cover on both sides of the rail groove swings upward, it is in clearance with each other and covers the rail groove.

[0005] Each side of the track groove is provided with multiple shielding covers, and the multiple shielding covers on each side are arranged sequentially along the extension direction of the track groove.

[0006] The self-closing boxes are arranged sequentially in the track groove. A pulley seat is fixedly installed at the bottom of the self-closing box, and several pulleys are rotatably installed on the pulley seat. A rotating shaft frame is fixedly installed on both sides of the top of the self-closing box. The same rotating shaft is installed on the rotating shaft frame on each side. The shielding cover is rotatably installed on the rotating shaft. A torsion spring is also sleeved on the rotating shaft. One end of the torsion spring abuts against the lower surface of the shielding cover, and the other end of the torsion spring abuts against the side wall of the self-closing box.

[0007] The cover includes an arc-shaped shaft that is rotatably connected to the pivot. A cover is integrally formed on one side of the arc-shaped shaft. The cover and the arc-shaped shaft are tangent, and the cover thickens and protrudes away from the arc-shaped shaft to form a limiting step. A limiting edge is provided on the top of the side wall of the self-closing box, extending towards the center of the self-closing box. When the cover swings upward to a horizontal position, the limiting step and the limiting edge touch the limiting edge. The upper surface of the cover at the end away from the arc-shaped shaft is inclined downward away from the arc-shaped shaft.

[0008] The lower rail structure also includes a pressure rail fixedly installed below the fan profile. The pressure rail has an "I" shaped cross section. The top of the pressure rail is fixedly connected to the fan profile, and the bottom of the pressure rail is slidably connected to the pulley. Both ends of the pressure rail are provided with pressure cap slopes, which slope downwards towards the middle of the pressure rail.

[0009] The lower rail structure also includes positioning profiles, the upper part of which matches the bottom of the fan-shaped profile. The length of the positioning profile is greater than the length of a self-closing box. One positioning profile is fixedly installed at each end of the lower surface of the fan-shaped profile, and the pressure rail is located between the two positioning profiles.

[0010] The self-closing box has brush strips fixedly installed on both inner side walls, extending to contact the pressure rail.

[0011] It also includes an upper rail structure, which includes a rail body. One or both sides of the rail body are detachably fitted with cover plates. The cover plates and the rail body cooperate to form an installation groove for installing the door leaf.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. A track groove is made in the ground, and a cover is installed on the track groove to cover it. When the door moves, it automatically presses down to open the track groove. After the door moves, the cover is reset by the action of the torsion spring and covers the track groove again, realizing a hidden track. It will not cause people to trip or affect the sliding passage of objects, and it is also more aesthetically pleasing.

[0014] 2. Multiple pulleys are installed in the track groove to slide with the door leaf. The multiple pulleys share the weight of the door leaf, making it suitable for heavy-duty sliding doors.

[0015] 3. The upper track structure consists of a split track body and a cover plate. When installing the door leaf, the bottom of the door leaf can be installed first, and then the top of the door leaf can be lifted or raised so that the top of the door leaf can enter the track body from the side. Finally, the cover plate is installed, which can reduce the installation difficulty for workers, make the installation of the door leaf more convenient and quick, and can accommodate door leaves with greater weight. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram showing the combination of the lower rail structure and the fan-shaped profile.

[0017] Figure 2 This is a three-dimensional structural diagram of the lower rail structure and the fan-shaped profile from another angle.

[0018] Figure 3 This is an exploded diagram showing the fit between the lower rail structure and the fan-shaped profile.

[0019] Figure 4This is an exploded view of the combination of the lower rail structure and the fan-shaped profile from another angle.

[0020] Figure 5 This is an exploded structural diagram of the fan-shaped profile, the pressure rail, and the positioning profile.

[0021] Figure 6 This is a schematic diagram of the exploded structure of a self-closing box.

[0022] Figure 7 This is a schematic diagram of the fit between the fan-shaped profile and the lower rail structure.

[0023] Figure 8 This is a cross-sectional structural diagram of a self-closing box.

[0024] Figure 9 This is a schematic diagram showing the fit between the upper rail structure and the door leaf.

[0025] Figure 10 This is a schematic diagram showing the fit between the upper rail structure and the door leaf; the cover plate is in the open position.

[0026] The lower rail structure and fan-shaped profile shown in the picture are only shown at one end, but in reality, they are set symmetrically at both ends. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] As attached Figure 1-10The diagram shows an automatic closing heavy-duty sliding door guide rail, comprising an upper rail structure 1, a lower rail structure 2, a pressure rail 3, and a positioning profile 4. The lower rail structure 2 includes a rail groove 5 set on the ground, the rail groove 5 being embedded in the ground. Multiple self-closing boxes 6 are sequentially arranged along the extension direction of the rail groove 5. A pulley seat 7 is fixedly installed at the bottom of each self-closing box 6, and two pulleys 8 are rotatably mounted on the pulley seat 7. The top of the self-closing box 6 is flush with the top of the rail groove 5, and two rotating shaft brackets 9 are fixedly installed on both sides. The same shaft 10 is installed on the shaft frame 9. A cover 11 is rotatably installed on the shaft 10, so that the cover 11 that can swing up and down is symmetrically installed on both sides of the top of the rail groove 5. A torsion spring 12 is also sleeved on the shaft 10. One end of the torsion spring 12 abuts against the lower surface of the cover 11, and the other end of the torsion spring 12 abuts against the side wall of the self-closing box 6, so that the torsion spring 12 can resist the downward swing of the cover 11. When the cover 11 on both sides of the rail groove 5 swings upward, they are in clearance fit with each other and cover the rail groove 5. The cover 11 includes an arc-shaped shaft portion 13 rotatably connected to the rotating shaft 10. A cover portion 14 is integrally formed on one side of the arc-shaped shaft portion 13. The cover portion 14 is tangent to the arc-shaped shaft portion 13, and the cover portion 14 thickens and protrudes away from the arc-shaped shaft portion 13 to form a limiting step 15. A limiting edge 16 extending towards the center of the self-closing box 6 is provided on the top of the side wall. When the cover portion 14 swings upward to a horizontal position, the limiting step 15 and the limiting edge 16 touch the limiting position. The upper surface of the end of the cover portion 14 away from the arc-shaped shaft portion 13 is inclined downward in the direction away from the arc-shaped shaft portion 13.

[0029] The pressure rail 3 has an "I" shaped cross-section. The top of the pressure rail 3 is fixedly connected to the fan profile 18, which is a conventional thermally broken fan profile 18. The upper part of the fan profile 18 is used to install the door panel 19. The bottom of the pressure rail 3 extends into the self-closing box 6 and is slidably connected to the pulley 8. Both ends of the pressure rail 3 are provided with pressure cap slopes 17, which slope downwards towards the middle of the pressure rail 3. The upper part of the positioning profile 4 matches the bottom of the fan profile 18. The length of the positioning profile 4 is slightly greater than the length of a self-closing box 6. One positioning profile 4 is fixedly installed at each end of the lower surface of the fan profile 18. The pressure rail 3 is located between two positioning profiles 4. During installation, one positioning profile 4 is first installed on one end of the door panel profile 18, and then the pressure rail 3 is installed on the door panel profile 18 in conjunction with the positioning profile 4. Then, the other positioning profile 4 is installed on the other end of the pressure rail 3. The positioning profiles 4 limit the position of the pressure rail 3, so that the distance between the pressure rail 3 and the edge of the door panel is greater than that of a self-closing box 6. Thus, the door panel can be used to cover the self-closing box 6 that has been pressed open by the cover 11, achieving a better track concealment effect. The positioning profiles 4 can also be used to cover the gap between the door panel and the track groove 5, making the overall structure more aesthetically pleasing. The upper rail structure 1 includes a rail body 20, and cover plates 21 are detachably installed on both sides of the rail body 20. The cover plates 21 and the rail body 20 cooperate to form an installation groove for installing the door leaf. When installing the door leaf, first align the bottom of the door leaf with the rail groove 5, then slowly lift the top of the door leaf so that the bottom of the door leaf falls into the rail groove 5, then push the top of the door leaf against the rail body 20 of the upper rail structure 1, and finally install the cover plate 21. This makes the installation of the door leaf easier, more convenient and faster.

[0030] In a preferred embodiment, brush strips are fixedly installed on the inner sidewalls of both sides of the self-closing box 6, and the brush strips extend to contact the pressure rail 3.

[0031] The guide rail provided by this invention can be configured as a single track, double track, or multiple tracks arranged in parallel in practical use, so as to install single, double, or multiple sliding doors, and can also... Figure 7 The configuration shown is a combination of push-pull and fixed fan rails.

[0032] During the pushing and pulling process, the pressure rail 3 moves with the door leaf. The inclined surface 17 of the pressure cover presses down on the front cover 11 and opens the set of cover 11, allowing the pressure rail 3 and the door leaf to pass smoothly. After the door leaf leaves, the cover 11 loses its downward pressure and swings upward to reset under the action of the torsion spring 12, re-covering the track groove 5, thus achieving the effect of hiding the track. Since the distance between the end of the pressure rail 3 and the edge of the door leaf is greater than the length of a self-closing box 6, the self-closing box 6, which is pressed open by the pressure rail 3, is always hidden under the door leaf and cannot be seen, giving the track a better concealment effect.

[0033] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A heavy-duty sliding door guide rail with automatic closing, comprising a lower rail structure (2), characterized in that, The lower rail structure (2) includes a rail groove (5) set on the ground. A cover (11) is symmetrically installed on both sides of the top of the rail groove (5). The cover (11) is mounted on the side wall of the rail groove (5) with a swinging motion. A torsion spring (12) is provided between the cover (11) and the rail groove (5) to resist the downward swinging of the cover (11). When the cover (11) on both sides of the rail groove (5) swings upward, they are mutually fitted and cover the rail groove (5). Multiple cover (11) are provided on each side of the rail groove (5), and these multiple cover (11) are arranged sequentially along the extension direction of the rail groove (5). Multiple self-closing boxes are sequentially arranged inside the rail groove (5). (6) A pulley seat (7) is fixedly installed at the bottom of the self-closing box (6). Several pulleys (8) are rotatably installed on the pulley seat (7). A rotating shaft frame (9) is fixedly installed on both sides of the top of the self-closing box (6). The same rotating shaft (10) is installed on each rotating shaft frame (9). The cover (11) is rotatably installed on the rotating shaft (10). A torsion spring (12) is also sleeved on the rotating shaft (10). One end of the torsion spring (12) abuts against the lower surface of the cover (11), and the other end of the torsion spring (12) abuts against the side wall of the self-closing box (6). The cover (11) includes an arc-shaped shaft (13) rotatably connected to the rotating shaft (10). A cover (14) is integrally formed on one side of part (13). The cover (14) is tangent to the arc-shaped shaft part (13), and the cover (14) thickens and protrudes to the side away from the arc-shaped shaft part (13) to form a limiting step (15). A limiting edge (16) extending towards the center of the self-closing box (6) is provided on the top of the side wall. When the cover (14) swings upward to the horizontal position, the limiting step (15) and the limiting edge (16) touch the limiting. The upper surface of the end of the cover (14) away from the arc-shaped shaft part (13) is inclined downward in the direction away from the arc-shaped shaft part (13). The lower rail structure (2) also includes a fixed installation below the fan-shaped profile (18). The pressure rail (3) has an "I" shaped cross section. The top of the pressure rail (3) is fixedly connected to the fan profile (18), and the bottom of the pressure rail (3) is slidably connected to the pulley (8). Both ends of the pressure rail (3) are provided with pressure cover slopes (17), which slope downwards towards the middle of the pressure rail (3). The lower rail structure (2) also includes positioning profiles (4). The upper part of the positioning profiles (4) matches the bottom of the fan profiles (18). The length of the positioning profiles (4) is greater than the length of a self-closing box (6). A positioning profile (4) is fixedly installed at each end of the lower surface of the fan profiles (18), and the pressure rail (3) is located between the two positioning profiles (4).

2. The automatic closing heavy-duty sliding door guide rail according to claim 1, characterized in that, The self-closing box (6) has fixed strips installed on both inner walls, and the strips extend to contact the pressure rail (3).

3. The automatic closing heavy-duty sliding door guide rail according to claim 2, characterized in that, It also includes an upper rail structure (1), which includes a rail body (20). A cover plate (21) is detachably installed on one or both sides of the rail body (20). The cover plate (21) and the rail body (20) cooperate to form an installation groove for installing the door leaf.

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