Limiting device for sliding folding door

By using a motor to drive a threaded rod to slide the moving plate, and coordinating with the rotation of the limit block and the locking block, the problem of the fixed position of the limit component in existing push-pull folding doors is solved, and the limit component can be flexibly adjusted, improving the adaptability of the door and the user experience.

CN224413386UActive Publication Date: 2026-06-26YIBOLAI (TIANJIN) DOORS & WINDOWS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIBOLAI (TIANJIN) DOORS & WINDOWS CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The limiting components of existing sliding folding doors have fixed positions and cannot be flexibly adjusted according to actual needs, which limits the adaptability and flexibility of the door.

Method used

Design a limiting device including a motor, a threaded rod, a movable plate, a limiting block, and a locking block. The motor drives the threaded rod to slide the movable plate, and the rotation of the limiting block and the locking block enables flexible adjustment of the limiting components.

Benefits of technology

The limit components can be flexibly adjusted, which improves the adaptability and user experience of the sliding folding door and meets the needs of different scenarios.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224413386U_ABST
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Abstract

The utility model relates to the field of push -and -pull type folding door especially relates to push -and -pull type folding door stop device, including door frame still including moving plate, clamping block and limit block, the top fixedly connected with the protection cover of door frame, the left end fixedly connected with motor of protection cover, the output fixedly connected with screw rod of motor through protection cover, screw rod and protection cover rotatory connection, the inside fixedly connected with the limit bar of protection cover, the outer surface screw connection of screw rod has moving plate, the utility model discloses through starting motor drives screw rod rotation, drives moving plate to slide on the limit bar and carries out position adjustment, and the pressing plate presss the connecting rod and drives the limit block to rotate on the fixed frame simultaneously, makes clamping block insert fixed frame and unfasten the pressing plate and make it be fixed, solved the limit assembly in push -and -pull type folding door in usually fixed position, will lead to folding door in the use process to be unable to adjust the fixed position according to actual need flexibly, and this defect has limited the adaptability and flexibility of the door body problem.
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Description

Technical Field

[0001] This utility model relates to the field of sliding folding doors, and more particularly to a limiting device for sliding folding doors. Background Technology

[0002] Sliding folding doors are an innovative design that combines the advantages of sliding doors and folding doors. They are suitable for various occasions where flexible space partitioning is required. These doors open and close through a track system. When the door panels are pushed open, they slide and fold along the preset track, thereby maximizing space saving. Sliding folding doors are not only easy to operate and run smoothly, but also can be used as room partitions, wardrobe doors, or balcony enclosures after installation, demonstrating high flexibility and adaptability.

[0003] The limiting components in existing sliding folding doors are usually fixed in position, which means that the folding door cannot be flexibly adjusted to the fixed position according to actual needs during use. This defect limits the adaptability and flexibility of the door, affects the user experience and space utilization efficiency, especially when it is necessary to control the opening and closing degree of the door to adapt to different scenario needs.

[0004] Therefore, since the limiting components in the existing sliding folding doors are usually fixed in position, which makes it impossible to flexibly adjust the fixed position according to actual needs during use, thus limiting the adaptability and flexibility of the door, a limiting device for sliding folding doors can be designed. Utility Model Content

[0005] In order to overcome the problem that the limiting components in existing sliding folding doors are usually fixed in position, which makes it impossible to flexibly adjust the fixed position according to actual needs during use, thus limiting the adaptability and flexibility of the door.

[0006] The technical solution of this utility model is as follows: a limiting device for a push-pull folding door, including a door frame, a movable plate, a locking block, and a limiting block. A protective cover is fixedly connected to the top of the door frame, and a motor is fixedly connected to the left end of the protective cover. A threaded rod is fixedly connected to the output end of the motor through the protective cover. The threaded rod is rotatably connected to the protective cover. A limiting rod is fixedly connected inside the protective cover. A movable plate is threadedly connected to the outer surface of the threaded rod. The movable plate is slidably connected to the limiting rod. A slider is slidably connected inside the door frame. A fixed frame is fixedly connected to the top of the slider. A limiting block is rotatably connected inside the fixed frame. A connecting rod is fixedly connected to the top of the limiting block. A movable rod is slidably connected inside the door frame. A pressure plate is fixedly connected to the top of the movable rod. The pressure plate is movably connected to the connecting rod.

[0007] Preferably, the motor is started to drive the threaded rod to rotate, which causes the moving plate to slide on the limit rod for position adjustment. Then, the folding door body is pulled to move, and at the same time, the pressure plate presses the connecting rod to drive the limit block to rotate on the fixed frame, so that the card block is inserted into the fixed frame and the pressure plate is released to fix it. The slider is fixed in the set position by the moving plate.

[0008] Preferably, the bottom of the slider is rotatably connected to the folding door body, and the interior of the folding door body has a slot corresponding to the position of the moving rod, and the moving rod slides in the slot.

[0009] Preferably, a lever is fixedly connected to the bottom of the moving rod, and a groove is provided on the outer surface of the folding door body corresponding to the position of the lever.

[0010] Preferably, a circular plate is fixedly connected to the outer surface of the moving rod, and a spring is fixedly connected to the bottom of the circular plate. The spring is fixedly connected to the slider.

[0011] Preferably, a second slider is slidably connected inside the door frame, and a fixing block is fixedly connected to the right side of the inside of the door frame. The second slider is rotatably connected to the folding door body.

[0012] Preferably, the fixing block is rotatably connected to the folding door body, and three pulleys are fixedly connected to the bottom of the folding door body.

[0013] Preferably, the front end of the folding door body has a groove, and a controller is fixedly connected to the front end of the folding door body.

[0014] The beneficial effects of this utility model are:

[0015] By starting the motor to drive the threaded rod to rotate, the moving plate slides on the limit rod to adjust its position. Then, the folding door body is pulled to move. At the same time, the pressure plate presses the connecting rod to drive the limit block to rotate on the fixed frame, so that the locking block is inserted into the fixed frame and the pressure plate is released to fix it. The slider is fixed in the set position by the moving plate. This solves the problem that the fixed position of the limit component usually makes it impossible to flexibly adjust the fixed position of the folding door according to actual needs during use, which limits the adaptability and flexibility of the door. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional front cross-sectional view of the present invention.

[0018] Figure 3 The diagram shown is a three-dimensional side sectional view of the present invention.

[0019] Figure 4The diagram shown is a three-dimensional top cross-sectional view of the present invention.

[0020] Figure 5 The diagram shown is a three-dimensional side sectional view of the present invention.

[0021] Explanation of reference numerals in the attached diagram: 1. Door frame; 2. Protective cover; 3. Motor; 4. Threaded rod; 5. Limiting rod; 6. Moving plate; 7. Locking block; 8. Slider one; 9. Fixed frame; 10. Limiting block; 11. Connecting rod; 12. Moving rod; 13. Pressure plate; 14. Hollow groove; 15. Pushing block; 16. Groove; 17. Round plate; 18. Spring; 19. Slider two; 20. Fixed block; 21. Folding door body; 22. Pulley; 23. Pull groove; 24. Controller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a limiting device for a push-pull folding door, comprising a door frame 1, a movable plate 6, a locking block 7, and a limiting block 10. A protective cover 2 is fixedly connected to the top of the door frame 1, and a motor 3 is fixedly connected to the left end of the protective cover 2. A threaded rod 4 is fixedly connected to the output end of the motor 3 through the protective cover 2, and the threaded rod 4 is rotatably connected to the protective cover 2. A limiting rod 5 is fixedly connected inside the protective cover 2, and a movable plate 6 is threadedly connected to the outer surface of the threaded rod 4. The movable plate 6 is slidably connected to the limiting rod 5. A slider 8 is slidably connected inside the door frame 1, and a fixed frame 9 is fixedly connected to the top of the slider 8. A limiting block 10 is rotatably connected inside the fixed frame 9, and a connecting rod 11 is fixedly connected to the top of the limiting block 10. A movable rod 12 is connected, and a pressure plate 13 is fixedly connected to the top of the movable rod 12. The pressure plate 13 is movably connected to the connecting rod 11. The bottom of the slider 8 is rotatably connected to the folding door body 21. A slot 14 is opened inside the folding door body 21 corresponding to the position of the movable rod 12. The movable rod 12 slides in the slot 14 and can slide up and down in the slot 14. By starting the motor 3, the threaded rod 4 is driven to rotate, which drives the movable plate 6 to slide on the limiting rod 5 to adjust its position. Then, the folding door body 21 is pulled to move. At the same time, the pressure plate 13 presses the connecting rod 11, which drives the limiting block 10 to rotate on the fixed frame 9, so that the locking block 7 is inserted into the fixed frame 9 and the pressure plate 13 is released to fix it. The slider 8 is fixed in the set position by the movable plate 6.

[0024] Please see Figures 1-5In this embodiment, a lever 15 is fixedly connected to the bottom of the moving rod 12. A groove 16 is provided on the outer surface of the folding door body 21 corresponding to the position of the lever 15. The lever 15 can be moved by the groove 16, which in turn moves the moving rod 12. A circular plate 17 is fixedly connected to the outer surface of the moving rod 12. A spring 18 is fixedly connected to the bottom of the circular plate 17. The spring 18 is fixedly connected to the slider 1 8. The spring 18 pushes the circular plate 17 and the moving rod 12 to reset. A slider 2 19 is slidably connected inside the door frame 1. A fixing block 20 is fixedly connected to the right side of the inside of the door frame 1. Block 2 19 is rotatably connected to the folding door body 21. Slider 2 19 assists in the folding and opening of the folding door body 21. Fixed block 20 is rotatably connected to the folding door body 21. Three pulleys 22 are fixedly connected to the bottom of the folding door body 21. When the folding door body 21 is folded and opened, it slides on the ground through the pulleys 22. A groove 23 is provided at the front end of the folding door body 21. A controller 24 is fixedly connected to the front end of the folding door body 21. The folding door body 21 can be moved by pulling through the groove 23. The controller 24 controls the motor 3 to drive the moving plate 6 to move for adjustment.

[0025] During operation, when the fixed position of the sliding door needs to be adjusted, the motor 3 is started to drive the threaded rod 4 to rotate, causing the moving plate 6 to slide on the limit rod 5 for position adjustment. Then, the folding door body 21 is pulled to move, and at the same time, the pressure plate 13 presses the connecting rod 11, causing the limit block 10 to rotate on the fixed frame 9, so that the locking block 7 is inserted into the fixed frame 9 and the pressure plate 13 is released to be fixed. The slider 8 is fixed in the set position by the moving plate 6. When the height of the pressure plate 13 needs to be adjusted, it can be lowered through the groove 16. The toggle block 15 moves the moving rod 12, which in turn moves the pressure plate 13 downwards, causing the limit block 10 to rotate. At the same time, the spring 18 pushes the circular plate 17 and the moving rod 12 to reset. When the folding door body 21 is pulled, it can be moved through the pull groove 23. The slider 29 can assist the folding and opening of the folding door body 21. When the folding door body 21 is folded and opened, it slides on the ground through the pulley 22. The controller 24 controls the motor 3 to move the moving plate 6 to adjust the fixed position.

[0026] Through the above steps, when it is necessary to adjust the fixed position of the sliding door, the motor 3 is started to drive the threaded rod 4 to rotate, which drives the moving plate 6 to slide on the limit rod 5 to adjust the position. Then, the folding door body 21 is pulled to move. At the same time, the pressure plate 13 presses the connecting rod 11 to drive the limit block 10 to rotate on the fixed frame 9, so that the card block 7 is inserted into the fixed frame 9 and the pressure plate 13 is released to fix it. The slider 8 is fixed in the set position by the moving plate 6. This solves the problem that the limit components in the existing sliding folding door are usually fixed in position, which will cause the folding door to be unable to flexibly adjust the fixed position according to actual needs during use. This defect limits the adaptability and flexibility of the door.

Claims

1. A limiting device for a sliding folding door, comprising a door frame (1); characterized in that: It also includes a movable plate (6), a locking block (7), and a limiting block (10). A protective cover (2) is fixedly connected to the top of the door frame (1). A motor (3) is fixedly connected to the left end of the protective cover (2). A threaded rod (4) is fixedly connected to the output end of the motor (3) through the protective cover (2). The threaded rod (4) is rotatably connected to the protective cover (2). A limiting rod (5) is fixedly connected inside the protective cover (2). A movable plate (6) is threadedly connected to the outer surface of the threaded rod (4). The door frame (1) is slidably connected to the limiting rod (5). The door frame (1) is slidably connected to the slider (8). The top of the slider (8) is fixedly connected to the fixed frame (9). The fixed frame (9) is rotatably connected to the limiting block (10). The top of the limiting block (10) is fixedly connected to the connecting rod (11). The door frame (1) is slidably connected to the moving rod (12). The top of the moving rod (12) is fixedly connected to the pressure plate (13). The pressure plate (13) is movably connected to the connecting rod (11).

2. The limiting device for a sliding folding door according to claim 1, characterized in that: The bottom of slider 1 (8) is rotatably connected to the folding door body (21). The interior of the folding door body (21) is provided with a slot (14) corresponding to the position of the moving rod (12). The moving rod (12) slides in the slot (14).

3. The limiting device for a sliding folding door according to claim 2, characterized in that: A lever (15) is fixedly connected to the bottom of the moving rod (12), and a groove (16) is provided on the outer surface of the folding door body (21) corresponding to the position of the lever (15).

4. The limiting device for a sliding folding door according to claim 3, characterized in that: A circular plate (17) is fixedly connected to the outer surface of the moving rod (12), and a spring (18) is fixedly connected to the bottom of the circular plate (17). The spring (18) is fixedly connected to the slider (8).

5. The limiting device for a sliding folding door according to claim 1, characterized in that: The door frame (1) has a sliding block (19) inside, and a fixing block (20) is fixedly connected to the right side of the door frame (1). The sliding block (19) is rotatably connected to the folding door body (21).

6. The limiting device for a sliding folding door according to claim 5, characterized in that: The fixing block (20) is rotatably connected to the folding door body (21), and three pulleys (22) are fixedly connected to the bottom of the folding door body (21).

7. The limiting device for a sliding folding door according to claim 6, characterized in that: The front end of the folding door body (21) is provided with a groove (23), and a controller (24) is fixedly connected to the front end of the folding door body (21).