Sliding door closing system

Abstract

The present invention relates to a sliding door closing system, including a sliding door body and an upper guide rail frame, both sides of the upper end of the sliding door body are installed with hanging wheel assemblies, two upper guide rails are arranged side by side in a horizontal manner inside the upper guide rail frame, and the upper guide rail is divided into three sections of tracks, namely a first horizontal track, an inclined track, and a second horizontal track, the inclined track is arranged obliquely downward from the front to the back, the first horizontal track is located obliquely behind the second horizontal track, and the hanging wheel assembly slides along the corresponding upper guide rail. The present invention has an excellent closing effect in a closed door state while running smoothly, and the closed door movement cooperates with gas spring buffering and door opening buffering, so that the operation is smoother; the distance of the sliding door body from the wall and the height from the ground are adjustable, so that the installation is more accurate and the influence of the installation environment on the closing effect is reduced; the sliding door is all-round closed and has strong closed sound insulation performance; the upper and lower guide rails are symmetrically designed to achieve the versatility of the door opening to the left and right, and the installation position is convenient to adjust.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding doors, and in particular to a sliding door closing system. Background Art

[0002] Sliding doors on the market only offer simple horizontal movement. To ensure smooth operation, a clearance of at least 10mm is required between the wooden door and both the wall and floor. Compared to swing door systems, these systems offer significantly poorer sealing and sound insulation. Some sliding door systems also incorporate seals such as soft plastic strips or brushes onto the wooden door to enhance sealing. This results in constant contact and friction between the seal and the wall and floor during movement, significantly reducing smoothness, noise reduction, and lifespan. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a sliding door closing system which operates smoothly and has an excellent closing effect in the closed state.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a sliding door closing system, including a sliding door body and an upper guide rail frame, both sides of the upper end of the sliding door body are installed with hanging wheel assemblies, two upper guide rails are arranged horizontally side by side inside the upper guide rail frame, and the upper guide rail is divided into three sections, namely a first horizontal rail, an inclined rail and a second horizontal rail, the inclined rail is arranged obliquely downward from the front to the rear, the first horizontal rail is located obliquely behind the second horizontal rail, and the hanging wheel assembly slides along the corresponding upper guide rail.

[0005] As a supplement to the technical solution described in the present invention, the hanging wheel assembly includes a hanging wheel seat, an adjusting nut and a hanging wheel. The lower part of the hanging wheel seat is equipped with an adjusting nut and an adjusting screw for controlling the forward and backward sliding of the adjusting nut. A vertically arranged toothed screw is rotatably installed in the adjusting nut. The lower end of the toothed screw is rotatably connected to the sliding door body. A gear shaft meshing with the upper end of the toothed screw is installed in the hanging wheel seat. A hanging wheel is installed on the upper part of the hanging wheel seat, and the hanging wheel slides along the corresponding upper guide rail.

[0006] As a supplement to the technical solution described in the present invention, a gas spring is provided inside the upper guide rail frame at the closed door position of one of the sliding door bodies, and a buffer is provided inside the upper guide rail frame at the open door position of one of the sliding door bodies. The upper end of the hanging wheel seat is symmetrically arranged with two mounting sockets on both sides of the hanging wheel, one of the mounting sockets is covered with a trigger, and the trigger is fixed to the mounting socket with screws.

[0007] As a supplement to the technical solution described in the present invention, a slide rail is arranged transversely inside the upper guide rail frame, and the buffer and gas spring can slide along the slide rail and be locked in place by screws.

[0008] As a supplement to the technical solution of the present invention, an anti-dropping block is installed in the middle of the hanging wheel seat below the upper guide rail, and the upper end surface of the anti-dropping block is an inclined surface. The anti-dropping block is fixed to the hanging wheel seat with screws.

[0009] As a supplement to the technical solution described in the present invention, a slot is opened at the bottom of the hanging wheel seat, and an adjusting nut is slidably installed in the slot. A limiting column is inserted into one side of the hanging wheel seat, and the limiting column seals the opening of the slot. The adjusting nut is a T-shaped block structure, and one end of the adjusting nut is provided with a T-shaped slot for inserting the adjusting screw. The adjusting screw is threadedly connected to the hanging wheel seat, and the adjusting screw passes through one end of the hanging wheel seat and a hexagonal hole is provided in the middle of its end face.

[0010] As a supplement to the technical solution described in the present invention, the hanging wheel includes a rotating shaft and two half rollers. The rotating shaft is sleeved with two oppositely arranged half rollers, and the half rollers are in a frustum shape.

[0011] As a supplement to the technical solution described in the present invention, a long strip protrusion with an upward inclination is provided in the lower part of the upper guide rail frame, and a groove matching the long strip protrusion is provided in the lower part of the upper guide rail. The upper guide rail and the long strip protrusion are fixed by screws.

[0012] As a supplement to the technical solution described in the present invention, both side edges and the upper edge of the rear end surface of the sliding door body are installed with sealing strips, which are in a flat tubular structure.

[0013] As a supplement to the technical solution of the present invention, a lower guide rail frame is installed in the lower end of the sliding door body, and a lower track is installed in the lower guide rail frame. One end of the lower track is provided with a slope. The lower track is fixed to the inner wall of the lower guide rail frame by screws.

[0014] As a supplement to the technical solution described in the present invention, a slot is arranged at the rear end of the lower guide rail frame along the length direction, and a lower sealing strip is inserted and installed in the slot.

[0015] Beneficial effects: The present invention relates to a sliding door closing system, which runs smoothly and has an excellent closing effect in the closed state. The closing movement is coordinated with the gas spring buffering and the door opening buffering, and the operation is smoother; the distance of the sliding door body from the wall and the height from the ground are adjustable, making the installation more precise and reducing the influence of the installation environment on the closing effect; the sliding door is all-round closed, has strong closed sound insulation performance, and has a simple and beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the present invention in the main viewing direction;

[0017] Figure 2 It is a structural schematic diagram of the present invention in the rearward direction;

[0018] Figure 3 Schematic diagram of the internal structure of the upper guide rail frame of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the upper guide rail of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the hanging wheel assembly of the present invention;

[0021] Figure 6 It is a partial structural schematic diagram of the hanging wheel assembly of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the hanging wheel seat of the present invention;

[0023] Figure 8 It is a left side view of the upper guide rail frame of the present invention;

[0024] Figure 9 It is a structural schematic diagram of the lower guide rail frame of the present invention;

[0025] Figure 10 This invention Figure 9 A partial enlarged view of .

[0026] Illustration: 1. Sliding door body, 2. Lower guide rail frame, 3. Gas spring, 4. Upper guide rail frame, 5. Upper guide rail, 6. Hanging wheel assembly, 7. Buffer, 8. Stopper, 9. Hanging wheel seat, 10. Adjusting nut, 11. Door connector, 12. Toothed screw, 13. Gear shaft, 14. Hanging wheel, 15. Trigger, 16. Mounting socket, 17. Anti-slip block, 18. Adjusting screw, 19. Limiting column, 20. Slotted notch, 21. T-slot, 22. Hexagonal socket, 23. Half roller, 24. Long protrusion, 25. Slide rail, 26. Groove, 27. First horizontal rail, 28. Inclined rail, 29. Second horizontal rail, 30. Sealing strip, 31. Lower sealing strip, 32. Slot, 33. Slope, 34. Lower rail. DETAILED DESCRIPTION

[0027] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

[0028] The embodiment of the present invention relates to a sliding door closure system, such as Figure 1-10 As shown, it includes a sliding door body 1 and an upper guide rail frame 4, and a hanging wheel assembly 6 is installed on both sides of the upper end of the sliding door body 1. Two upper guide rails 5 are arranged horizontally side by side inside the upper guide rail frame 4. The upper guide rail 5 is divided into three sections, namely the first horizontal rail 27, the inclined rail 28 and the second horizontal rail 29. The inclined rail 28 is arranged obliquely downward from the front to the rear, and the first horizontal rail 27 is located obliquely rearward of the second horizontal rail 29. The hanging wheel assembly 6 slides along the corresponding upper guide rail 5.

[0029] The hanging wheel 14 moves along the upper guide rail 5 from the second horizontal track 29 along the inclined track 28, and finally slides onto the first horizontal track 27, so that the sliding door body 1 is leaned against the wall as a whole and 7 mm downward, so that the sealing strip 30 and the lower sealing strip 31 at the rear end of the sliding door body 1 are tightly fitted with the door frame. At the same time, the lower end of the lower sealing strip 31 seals the gap between the sliding door body 1 and the ground. The sliding door body 1 performs 3D movement to better realize the closure of the sliding door system.

[0030] The hanging wheel assembly 6 includes a hanging wheel seat 9, an adjusting nut 10 and a hanging wheel 14. The adjusting nut 10 and the adjusting screw 18 for controlling the forward and backward sliding of the adjusting nut 10 are installed in the lower part of the hanging wheel seat 9. A vertically arranged toothed screw 12 is rotatably installed in the adjusting nut 10. The lower end of the toothed screw 12 is rotatably connected to the sliding door body 1. A gear shaft 13 meshing with the upper end of the toothed screw 12 is installed in the hanging wheel seat 9. A hanging wheel 14 is installed on the upper part of the hanging wheel seat 9, and the hanging wheel 14 slides along the corresponding upper guide rail 5.

[0031] To compensate for uneven walls and floors and height deviations in the guide rail installation, the hanging wheel can be used to adjust the distance of the sliding door body 1 from the wall and the height from the ground: ① The gear shaft 13 drives the toothed screw 12 to rotate, and the rotation of the toothed screw 12 controls the up and down movement of the sliding door body 1 to adjust the distance of the sliding door body 1 from the ground by ±3mm. The gear-matched adjustment method is easier; ② The adjusting screw 18 drives the adjusting nut 10 to slide back and forth to adjust the distance of the sliding door body 1 from the wall by ±2.5mm. One end of the gear shaft 13 and one end of the adjusting screw 18 both pass through the front end face of the hanging wheel seat 9. The adjustment of both the distance from the wall and the height from the ground are located on the front end face of the hanging wheel seat 9, and the front end face of the hanging wheel seat 9 is provided with markings and notes to facilitate customer adjustment.

[0032] Door connectors 11 are installed on both sides of the upper end of the sliding door body 1 . The door connectors 11 are fixed to the upper end of the sliding door body 1 by screws. The door connectors 11 are threadedly connected to the lower end of the toothed screw 12 .

[0033] A gas spring 3 is provided inside the upper guide rail frame 4 at the door closing position of one of the sliding door bodies 1, and a buffer 7 is provided inside the upper guide rail frame 4 at the door opening position of one of the sliding door bodies 1. The upper end of the hanging wheel seat 9 is symmetrically arranged on both sides of the hanging wheel 14, and one of the mounting sockets 16 is covered with a trigger 15, and the trigger 15 and the mounting socket 16 are fixed with screws. A stopper 8 is provided inside the upper guide rail frame 4 at the door closing position of the other sliding door body 1. The trigger 15 acts on the work of the gas spring 3 and the buffer 7 at the same time, and can be installed on the left and right sides of the hanging wheel 14 to more reasonably utilize the length of the upper guide rail 5. The mounting socket 16 is square, and the trigger 15 with the outer cover is fixed more stably. The stopper 8 limits the effective range of the hanging wheel 14 to ensure the safety of the system.

[0034] The gas spring 3 is set in the closed door position, which can not only buffer the acceleration generated by the sliding door body 1 sinking through the inclined track 28 (at this time the inclined track 28 is equivalent to a downhill slope), but also provide thrust when opening the door, reducing the pulling force required for the hanging wheel 14 to rush onto the inclined track 28 (at this time the inclined track 28 is equivalent to an uphill slope).

[0035] The upper guide rail frame 4 is laterally provided with a slide rail 25. The buffer 7 and gas spring 3 can slide along the slide rail 25 and be locked in place by screws. The trigger 15, buffer 7 and gas spring 3 can slide along the slide rail 25 for position adjustment, and the screws are locked in place after adjustment.

[0036] Described hanging wheel seat 9 middle parts are positioned at upper guide rail 5 below and are installed with anti-falling block 17, and the upper end face of this anti-falling block 17 is an inclined plane. Adopt screw fixing between described anti-falling block 17 and the hanging wheel seat 9.

[0037] The bottom of the hanging wheel seat 9 is provided with a slot 20, in which an adjusting nut 10 is slidably installed. A limiting column 19 is inserted into one side of the hanging wheel seat 9, and the limiting column 19 seals the opening of the slot 20. The adjusting nut 10 is a T-shaped block structure, and one end of the adjusting nut 10 is provided with a T-shaped slot 21 for inserting an adjusting screw 18. The adjusting screw 18 is threadedly connected to the hanging wheel seat 9. The adjusting screw 18 passes through one end of the hanging wheel seat 9 and is provided with a hexagonal hole 22 in the middle of its end surface. The hexagonal hole 22 is used to connect an hexagonal wrench.

[0038] The use of a stopper 19 to seal the opening of the slotted notch 20 effectively limits the rearward movement of the adjusting nut 10. The door connector 1 includes a threaded hole connected to the toothed screw 12, the lower end of which is sealed by a stopper screw, effectively limiting the downward movement of the adjusting screw 18. Stoppers are incorporated into the extreme positions for adjusting the distance from the wall and the height from the ground of the sliding door body 1, preventing safety hazards caused by over-adjustment.

[0039] The hanging wheel 14 includes a rotating shaft and two half rollers 23. Two relatively arranged half rollers 23 are mounted on the rotating shaft. The half rollers 23 are truncated cone-shaped. The outer side walls of the two half rollers 23 are arranged vertically at 90 degrees to cooperate with the upper guide rail 5. Designing the hanging wheel 14 into two half rollers can make up for the poor contact with the upper guide rail 5 and make the operation quieter.

[0040] The lower portion of the upper rail frame 4 is provided with a long, upwardly angled protrusion 24 at a 45-degree angle. The lower portion of the upper rail 5 is provided with a groove 26 that mates with the protrusion 24. The upper rail 5 is secured to the protrusion 24 via screws. The upper rail 5 is essentially a long board with a slope cut into one side of the upper end and a flat surface cut into the lower end of the slope. The board is then rotated 45 degrees and secured to the protrusion 24.

[0041] Sealing strips 30 are installed on both sides and the upper edge of the rear end face of the sliding door body 1. These flat, tubular sealing strips 30 are hollow in design, providing enhanced sound insulation when the door is closed and in an interference-compression state with the wall and floor. The sealing strips 30 are secured to the wooden door via a connecting strip profile, creating a simple and aesthetically pleasing design while eliminating the need for excessive grooving. The connecting strip profile is secured to the sliding door body 1 via screws, and the connecting strip profile and sealing strip 30 are connected via a plug-in connection.

[0042] The lower end of the sliding door body 1 is mounted within a lower guide frame 2, which houses a lower track 34. A slope 33 is provided at one end of the lower track 34. The lower track 34 is secured to the inner wall of the lower guide frame 2 via screws. The slope 33 is designed to accommodate the inclined track 28 of the upper track 5.

[0043] The lower guide rail frame 2 has a slot 32 along its length at its rear end, into which a lower sealing strip 31 is inserted. The lower sealing strip 31 has through holes along its length, which, compared to a hollow structure, provides better sound insulation when the door is closed and the wall and floor are in an interference compression state.

[0044] The symmetrical design of the upper and lower guide rails enables the door to open left or right, facilitates adjustment of the installation position, and can also be cut to meet the needs of wooden doors of different door widths.

Claims

1. A sliding door closing system, comprising a sliding door body (1) and an upper guide rail frame (4), Features: A hanging wheel assembly (6) is installed on both sides of the upper end of the sliding door body (1). Two upper guide rails (5) are arranged side by side in a horizontal manner inside the upper guide rail frame (4). The upper guide rail (5) is divided into three sections of tracks, namely a first horizontal track (27), an inclined track (28) and a second horizontal track (29). The inclined track (28) is arranged obliquely downward from the front to the back. The first horizontal track (27) is located obliquely behind the second horizontal track (29). The hanging wheel assembly (6) slides along the corresponding upper guide rail (5); the hanging wheel assembly (6) includes a hanging wheel seat (9), an adjusting nut (10) and a hanging wheel (14). The lower part of the hanging wheel seat (9) is installed with an adjusting nut (10) and an adjusting screw (18) for controlling the forward and backward sliding of the adjusting nut (10). A vertically arranged toothed screw (12) is rotatably installed inside the adjusting nut (10). The lower end of the toothed screw (12) is rotatably connected to the sliding door body (1). The hanging wheel seat (9) is provided with a gear shaft (13) meshing with the upper end of the toothed screw (12); a hanging wheel (14) is provided on the upper part of the hanging wheel seat (9); the hanging wheel (14) slides along the corresponding upper guide rail (5); an anti-slip block (17) is provided in the middle part of the hanging wheel seat (9) below the upper guide rail (5); the upper end surface of the anti-slip block (17) is an inclined surface; a straight cutout (20) is provided at the bottom of the hanging wheel seat (9), and an adjusting nut is slidably installed in the straight cutout (20) (10), a limiting column (19) is inserted into one side of the hanging wheel seat (9), and the limiting column (19) seals the opening of the slotted notch (20), and the adjusting nut (10) is in a T-shaped block structure, and one end of the adjusting nut (10) is provided with a T-shaped slot (21) for inserting the adjusting screw (18), and the adjusting screw (18) is threadedly connected to the hanging wheel seat (9), and the adjusting screw (18) passes through one end of the hanging wheel seat (9) and a hexagonal hole (22) is provided in the middle of its end surface.

2. A sliding door closing system according to claim 1, Features: A gas spring (3) is arranged inside the upper guide rail frame (4) at a door closing position of one of the sliding door bodies (1), and a buffer (7) is arranged inside the upper guide rail frame (4) at a door opening position of one of the sliding door bodies (1). The upper end of the hanging wheel seat (9) is symmetrically arranged on both sides of the hanging wheel (14), and one of the mounting sockets (16) is covered with a trigger (15), and the trigger (15) is fixed to the mounting socket (16) by screws.

3. A sliding door closing system according to claim 2, Features: A slide rail (25) is arranged transversely inside the upper guide rail frame (4), and the buffer (7) and the gas spring (3) can slide along the slide rail (25) and be locked in place by screws.

4. A sliding door closing system according to claim 1, Features: The hanging wheel (14) comprises a rotating shaft and two half rollers (23). The rotating shaft is sleeved with two half rollers (23) arranged opposite to each other. The half rollers (23) are in a truncated cone shape.

5. A sliding door closing system according to claim 1, Features: Sealing strips (30) are installed on both side edges and the upper edge of the rear end surface of the sliding door body (1), and the sealing strips (30) are in a flat tubular structure.

6. A sliding door closing system according to claim 1, Features: A lower guide rail frame (2) is installed in the lower end of the sliding door body (1), a lower track (34) is installed in the lower guide rail frame (2), and a slope (33) is provided at one end of the lower track (34).

7. A sliding door closing system according to claim 6, Features: A slot (32) is arranged at the rear end of the lower guide rail frame (2) along the length direction, and a lower sealing strip (31) is inserted and installed in the slot (32).

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