Garage door anti-falling device

By installing speed sensors and electric push rod systems in electric roller shutter doors, the sliding speed of the door panel can be monitored and fixed in real time, solving the problem of electric roller shutter doors falling and achieving safe and stable door panel lifting and lowering.

CN223839025UActive Publication Date: 2026-01-27HUBEI DINGSHENG XINYUE DOOR MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520163781.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-27
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Electric roller shutters are prone to falling when they malfunction, causing vehicle damage and safety accidents.

Method used

A speed sensor is used to monitor the sliding speed of the door panel, and an electric push rod and a servo motor are used to control the limit rod to enter the limit hole, fix the door panel, and prevent it from falling quickly.

Benefits of technology

It effectively prevents the door panel from falling rapidly, improves safety, and ensures stable lifting and lowering of the door panel.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223839025U_ABST
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Abstract

The utility model provides a garage door anti-falling device which comprises two first guide seats fastened on a garage wall body, the two first guide seats are symmetrically arranged along a garage door opening in the garage wall body, a door plate is installed between the two first guide seats, and one end of the door plate is connected with a garage ceiling through a lifting mechanism; a through groove is formed in the upper end of the outer wall of the first guide seat, a mounting frame for mounting an electric push rod is connected to the outer wall of the through groove, a connecting seat is fastened to the tail end of the electric push rod, and a plurality of limiting rods are vertically connected to the side, close to the through groove, of the connecting seat; the connecting side plates are fastened to the two sides of the door plate, a plurality of limiting holes are formed in the connecting side plates, and the limiting rods can slide into the limiting holes under pushing of the electric push rods to position the connecting side plates. The electric push rod pushes the limiting rod to move into the limiting hole, so that the connecting side plate is fixed, the door plate is effectively prevented from falling quickly, and the use safety is improved.
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Description

Technical Field

[0001] This utility model relates to the field of garage door technology, specifically a garage door anti-fall device. Background Technology

[0002] Electric garage doors are widely used in daily life and are suitable for commercial storefronts, garages, shopping malls, and other public places or residences. They are especially useful in places with large doorways where it is inconvenient to install ground-level doors, providing convenient and quick opening. They also have a long service life, are aesthetically pleasing and convenient, and have heat insulation properties, effectively ensuring the safety of people, vehicles, and pets when entering and exiting.

[0003] However, electric roller shutters are prone to falling if a malfunction occurs during actual use. A sudden fall can damage vehicles entering or exiting the garage and easily lead to accidents. Therefore, we propose a garage door anti-fall device. Utility Model Content

[0004] In view of the shortcomings of existing door panels that are prone to falling, and the sudden fall of roller shutter doors can easily damage vehicles entering and exiting, this utility model provides a garage door anti-fall device, which has the advantages of effectively preventing the rapid fall of the door panel and improving the safety of the door panel, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A garage door anti-fall device includes two first guide seats fastened to the garage wall. The two first guide seats are symmetrically arranged along the garage door opening on the garage wall. A door panel is installed between the two first guide seats. One end of the door panel is connected to the garage ceiling through a lifting mechanism. A through groove is opened at the upper end of the outer wall of the first guide seat, and a mounting bracket for installing an electric push rod is connected to the outer wall of the through groove. A connecting seat is fastened to the end of the electric push rod. Multiple limiting rods are vertically connected to the side of the connecting seat near the through groove. Connecting side plates are fastened to both sides of the door panel. Multiple limiting holes are opened on the connecting side plates. The limiting rods can slide into the limiting holes under the push of the electric push rod to position the connecting side plates. It also includes a control box connected to the garage wall. A speed sensor is fastened to the side of the first guide seats that are close to each other. The speed sensor, the electric push rod and the controller in the control box are connected.

[0006] Optionally, the top and bottom of the mounting bracket are provided with grooves, and the top and bottom of the connecting seat are fitted with sliders that are slidably connected to the grooves.

[0007] Optionally, the lifting mechanism includes a second guide seat symmetrically connected to the garage ceiling, the two sides of the door panel being slidably connected to the second guide seat, and a guide wheel that is rotatably connected to the garage ceiling at the end of the second guide seat away from the garage door opening;

[0008] A servo motor is installed between the two guide wheels and fastened to the garage ceiling. The servo motor is connected to the controller. The output end of the servo motor is coaxially connected to the winding roller. Traction ropes are fastened to both ends of the door panel. The ends of the traction ropes pass around the guide wheels and are fixedly connected to the outer wall of the winding roller.

[0009] Optionally, a connecting shaft is provided between the end of the second guide seat and the garage wall. The connecting shaft is perpendicular to the position of the second guide seat and is rotatably connected to the garage ceiling through a bearing seat. Multiple rollers are coaxially connected on the outer wall of the connecting shaft, and the rollers contact the inner side of the door panel.

[0010] Optionally, the guide wheels are connected to the garage ceiling via a U-shaped bracket.

[0011] Optionally, the servo motor can be fixedly connected to the garage ceiling via a motor mounting bracket.

[0012] Compared with the prior art, this utility model can monitor the sliding speed of the door panel in real time by setting a speed sensor. When the descent speed is too fast, the controller controls the electric push rod to push the connecting seat into the first guide seat, so that the limiting rod moves into the limiting hole, thereby fixing the connecting side panel and effectively preventing the door panel from falling quickly. This utility model can not only realize the normal use of the door panel, but also effectively fix the falling door panel, thus improving the safety of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram illustrating the installation of the door panel and garage door opening according to this utility model.

[0015] Figure 2 This is a connection diagram of the door panel and the first guide seat of this utility model.

[0016] Figure 3 This is a connection diagram of the door panel and the second guide seat of this utility model.

[0017] Figure 4 For the present utility model Figure 3 A magnified view of part A in the image.

[0018] In the diagram: 1. Garage ceiling; 2. Garage wall; 3. Garage doorway; 4. Door panel; 5. Control box; 6. First guide seat; 7. Connecting seat; 8. Bearing seat; 9. Slide groove; 10. Servo motor; 11. Slider; 12. Traction rope; 13. Guide wheel; 14. Second guide seat; 15. Roller; 16. Connecting shaft; 17. Mounting bracket; 18. Speed ​​sensor; 19. Through groove; 20. Limiting rod; 21. Electric push rod; 22. Limiting hole; 23. Connecting side plate; 24. U-shaped seat; 25. Winding roller; 26. Motor mounting bracket. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figures 1 to 4 This utility model provides a technical solution: a garage door anti-fall device, including two first guide seats 6 fastened to the garage wall 2, the two first guide seats 6 being symmetrically arranged along the garage door opening 3 on the garage wall 2, a door panel 4 being installed between the two first guide seats 6, and one end of the door panel 4 being connected to the garage ceiling 1 via a lifting mechanism, wherein, as shown... Figure 2 , 3 As shown, the lifting mechanism includes a second guide seat 14 symmetrically connected to the garage ceiling 1. The two sides of the door panel 4 are slidably connected to the second guide seat 14. A guide wheel 13 is provided at the end of the second guide seat 14 away from the garage door opening 3 and is rotatably connected to the garage ceiling 1. In actual use, the guide wheel 13 is connected to the garage ceiling 1 through a U-shaped seat 24, which improves the stability of the installation of the guide wheel 13 and the garage ceiling 1.

[0021] A servo motor 10, which is fastened to the garage ceiling 1, is installed between the two guide wheels 13. The servo motor 10 is fixedly connected to the garage ceiling 1 via a motor mounting bracket 26. The output end of the servo motor 10 is coaxially connected to a winding roller 25. Traction ropes 12 are fastened to both ends of the door panel 4. The ends of the traction ropes 12 pass around the guide wheels 13 and are fixedly connected to the outer wall of the winding roller 25. Under the rotation of the servo motor 10, the traction ropes 12 on both sides are pulled and wound onto the winding roller 25. Driven by the traction ropes 12, the door panel 4 can be raised and lowered, realizing the automatic raising and lowering of the door panel 4.

[0022] like Figure 2 , 3As shown, in order to ensure the stable lifting and lowering of the door panel 4, a connecting shaft 16 is provided between the end of the second guide seat 14 and the garage wall 2. The connecting shaft 16 is perpendicular to the second guide seat 14 and is rotatably connected to the garage ceiling 1 through the bearing seat 8. Multiple rollers 15 are coaxially connected to the outer wall of the connecting shaft 16. The rollers 15 contact the inner side of the door panel 4 and guide the door panel 4, ensuring the stable movement of the door panel 4.

[0023] In summary, when using this garage door anti-fall device, if... Figure 3 , 4 As shown, a through groove 19 is opened at the upper end of the outer wall of the first guide seat 6, and a mounting bracket 17 for installing an electric push rod 21 is connected to the outer wall of the through groove 19. A connecting seat 7 is fastened to the end of the electric push rod 21. Multiple limiting rods 20 are vertically connected to the side of the connecting seat 7 near the through groove 19. Side plates 23 are fastened to both sides of the door panel 4. Multiple limiting holes 22 are opened on the side plates 23. The limiting rods 20 can slide into the limiting holes 22 under the push of the electric push rod 21 to position the side plates 23. Speed ​​sensors 18 are fastened to the adjacent sides of the first guide seat 6.

[0024] Under the detection of the speed sensor 18, the sliding speed of the door panel 4 can be monitored in real time. When the door panel 4 falls too fast, the electric push rod 21 is controlled to push the connecting seat 7 into the first guide seat 6, so that the limiting rod 20 slides toward the connecting side plate 23 and moves into the limiting hole 22, thereby limiting and fixing the connecting side plate 23, thus fixing the position of the door panel 4 and effectively preventing the door panel 4 from falling quickly.

[0025] Meanwhile, the mounting bracket 17 has grooves 9 on the top and bottom, and sliders 11 that are slidably connected to the grooves 9 are fastened to the top and bottom of the connecting seat 7. When the connecting seat 7 moves, the sliders 11 can be pushed to move in the grooves 9, thereby limiting the sliding of the connecting seat 7 and improving the stability of the sliding of the connecting seat 7. In addition, this utility model also includes a control box 5 connected to the garage wall 2. When in use, the speed sensor 18, electric push rod 21, and servo motor 10 are all connected to the controller in the control box 5.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A garage door anti-fall device, comprising two first guide seats (6) fastened to a garage wall (2), characterized in that, Two first guide seats (6) are symmetrically arranged along the garage door opening (3) on the garage wall (2), and a door panel (4) is installed between the two first guide seats (6). One end of the door panel (4) is connected to the garage ceiling (1) through a lifting mechanism. A through groove (19) is opened at the upper end of the outer wall of the first guide seat (6), and a mounting bracket (17) for installing an electric push rod (21) is connected to the outer wall of the through groove (19). A connecting seat (7) is fastened to the end of the electric push rod (21), and multiple limiting rods (20) are vertically connected to the side of the connecting seat (7) close to the through groove (19). Side panels (23) are fastened to both sides of the door panel (4). Multiple limiting holes (22) are opened on the side panels (23). The limiting rod (20) can slide into the limiting hole (22) under the push of the electric push rod (21) to position the side panel (23). It also includes a control box (5) connected to the garage wall (2), and a speed sensor (18) is tightly attached to one side of the first guide seat (6), connecting the speed sensor (18), the electric push rod (21) to the controller inside the control box (5).

2. The garage door anti-fall device as described in claim 1, characterized in that, The mounting bracket (17) has grooves (9) at the top and bottom, and the connecting seat (7) has sliders (11) that are slidably connected to the grooves (9) at the top and bottom.

3. The garage door anti-fall device as described in claim 2, characterized in that, The lifting mechanism includes a second guide seat (14) symmetrically connected to the garage ceiling (1), the two sides of the door panel (4) are slidably connected to the second guide seat (14), and a guide wheel (13) is provided at one end of the second guide seat (14) away from the garage door opening (3) and is rotatably connected to the garage ceiling (1); A servo motor (10) is installed between the two guide wheels (13) and fastened to the garage ceiling (1). The servo motor (10) is connected to the controller. The output end of the servo motor (10) is coaxially connected to the winding roller (25). The traction rope (12) is fastened to both ends of the door panel (4). The end of the traction rope (12) passes around the guide wheel (13) and is fixedly connected to the outer wall of the winding roller (25).

4. The garage door anti-fall device as described in claim 3, characterized in that, A connecting shaft (16) is provided between the end of the second guide seat (14) and the garage wall (2). The connecting shaft (16) is perpendicular to the second guide seat (14) and is rotatably connected to the garage ceiling (1) through the bearing seat (8). Multiple rollers (15) are coaxially connected on the outer wall of the connecting shaft (16). The rollers (15) contact the inner side of the door panel (4).

5. The garage door anti-fall device as described in claim 3, characterized in that, The guide wheel (13) is connected to the garage ceiling (1) via a U-shaped seat (24).

6. The garage door anti-fall device as described in claim 3, characterized in that, The servo motor (10) is fixedly connected to the garage ceiling (1) via the motor mounting bracket (26).