Electric door anti-falling device

Abstract

The utility model belongs to the technical field of electric doors, and particularly discloses an electric door anti-falling device which comprises a base, a door frame is installed on the top of the base, sliding grooves are symmetrically formed in the two side walls of the interior of the door frame, installation grooves are symmetrically formed in the positions, located on the two sides of the sliding grooves, of the inner side wall of the door frame, and a lifting door is installed between the interiors of the sliding grooves. A speed sensor is installed at the top of the lifting door, a supporting frame is installed between the two ends of the top of the lifting door, an arc-shaped elastic piece is installed at the bottom of the supporting frame, a movable rod is installed at the bottom of the supporting frame and penetrates through the arc-shaped elastic piece, adjusting rods are symmetrically installed on the two sides of the bottom of the movable rod, and fixing blocks are installed at the ends, away from the movable rod, of the bottoms of the adjusting rods. Limiting blocks are symmetrically installed at the two ends outside the fixing block. The lifting door can be prevented from falling off due to breakage of a steel wire rope outside the lifting door, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of electric door technology, and in particular to an electric door anti-fall device. Background Technology

[0002] Currently, lifting electric doors are widely used in factory workshops, shops, and garages to meet the needs of vehicles or people entering and exiting. When this type of door is opened, the movable door panel will rise to a certain height, thus leaving enough space for people or vehicles to pass through. However, if the lifting electric door encounters an emergency such as damage or breakage of the steel cable during use, the movable door panel may suddenly fall, posing a serious threat to the personal safety of the user.

[0003] To address this safety hazard, an anti-fall device, namely an anti-fall barrier, has emerged in the existing technology. When the lifting electric door is opened, the operator needs to manually move the barrier to the bottom of the lifting door to form a safety barrier to prevent the moving door panel from falling and injuring people in case of an accident. However, this manual operation method has obvious drawbacks. On the one hand, if the operator is in a hurry or takes a chance, he may forget to move the barrier, thus leaving a safety hazard. On the other hand, manual operation increases the labor intensity of personnel and reduces the passage efficiency, so it has certain disadvantages.

[0004] To address the aforementioned issues, this application provides an anti-fall device for electric doors. Utility Model Content

[0005] This utility model provides the following technical solution: an electric door anti-fall device, including a base, a door frame installed on the top of the base, symmetrical grooves on the inner side walls of the door frame, symmetrical mounting grooves on the inner side walls of the door frame located on both sides of the grooves, a lifting door installed inside the grooves, a speed sensor installed on the top of the lifting door, a support frame installed between the two ends of the top of the lifting door, an arc-shaped spring plate installed at the bottom of the support frame, a movable rod installed at the bottom of the support frame passing through the arc-shaped spring plate, adjusting rods symmetrically installed on both sides of the bottom of the movable rod, a fixing block installed at the bottom of the adjusting rod away from the movable rod, and limit blocks symmetrically installed at the two outer ends of the fixing block.

[0006] Each end of the adjusting rod has a limiting groove. U-shaped frames are symmetrically installed on the inner side walls of the support frame. Sliding rods are installed between the inner side walls of the U-shaped frames and inside the limiting grooves.

[0007] A fixed frame is installed on the top of the support frame, and an electric telescopic rod is installed on the top inner side of the fixed frame. One end of the movable rod passes through the support frame and is connected to the movable end of the electric telescopic rod.

[0008] The bottom end of the movable rod is rotatably connected to both adjusting rods, and the arc-shaped spring is designed to deform under elastic compression.

[0009] When the adjusting rod is adjusted in angle, the limiting groove at one end of the adjusting rod slides outside the slide rod, and when the adjusting rod is tilted in angle adjustment, the limiting block is tilted synchronously through the fixed block.

[0010] A limiting plate is installed inside the mounting slot. Several sets of trapezoidal blocks are evenly spaced on the outside of the limiting plate. The trapezoidal blocks are right-angled trapezoids with an inclined bottom. The end of the limiting block away from the fixing block is set as a wedge shape.

[0011] Both ends of the door frame are fitted with outer shells.

[0012] This electric door anti-fall device works by retracting an electric telescopic rod, which simultaneously raises a movable rod. As the movable rod rises, its bottom presses against an arc-shaped spring. Simultaneously, the rising rod causes the adjusting rods on both sides to tilt, and this tilting, in turn, causes the limiting block to tilt via a fixed block. This moves one end of the limiting block away from the two trapezoidal blocks on the limiting plate, thus releasing the restriction on the door's movement. Once the door is fully adjusted, the external control unit extends the electric telescopic rod, causing the movable rod to reset and simultaneously resetting the two adjusting rods. This, in turn, causes the limiting block to reset and reconnect between the two trapezoidal blocks on the limiting plate, locking the door and preventing it from falling due to a broken steel cable. The device is easy to operate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a utility model Figure 1 Partial structural diagram;

[0015] Figure 3 This is a utility model Figure 2 Partial structural diagram;

[0016] Figure 4 This is a utility model Figure 3 Partial structural diagram;

[0017] Figure 5 This is a utility model Figure 4 Partial structural diagram.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Door frame; 201. Slide groove; 202. Mounting groove; 3. Lifting door; 4. Speed ​​sensor; 5. Support frame; 6. Arc-shaped spring; 7. Movable rod; 8. Adjusting rod; 801. Limiting groove; 9. Fixing block; 10. Limiting block; 11. Limiting plate; 12. U-shaped frame; 13. Slide rod; 14. Fixing frame; 15. Electric telescopic rod; 16. Trapezoidal block; 17. Outer shell. Detailed Implementation

[0019] The present invention will be further described in detail below through specific embodiments:

[0020] Example

[0021] As attached Figures 1 to 5 As shown: An electric door anti-fall device includes a base 1, a door frame 2 installed on the top of the base 1, symmetrical grooves 201 on the inner side walls of the door frame 2, mounting slots 202 symmetrically opened on the inner side walls of the door frame 2 on both sides of the grooves 201, a lifting door 3 installed inside the grooves 201, a speed sensor 4 installed on the top of the lifting door 3, a support frame 5 installed between the two ends of the top of the lifting door 3, an arc-shaped spring piece 6 installed at the bottom of the support frame 5, a movable rod 7 installed at the bottom of the support frame 5 passing through the arc-shaped spring piece 6, an adjusting rod 8 symmetrically installed on both sides of the bottom of the movable rod 7, a fixing block 9 installed at the bottom of the adjusting rod 8 away from the movable rod 7, and limit blocks 10 symmetrically installed at both ends of the outer side of the fixing block 9.

[0022] Reference Figure 2 - Figure 4 A fixed frame 14 is installed on the top of the support frame 5. An electric telescopic rod 15 is installed on the inner top of the fixed frame 14. One end of the movable rod 7 passes through the support frame 5 and is connected to the movable end of the electric telescopic rod 15. The bottom end of the movable rod 7 is rotatably connected to the two adjusting rods 8, and the arc-shaped spring 6 is designed to deform under pressure. The extension and retraction of the electric telescopic rod 15 can synchronously drive the movable rod 7 to rise and fall. When the movable rod 7 rises, its bottom will press the arc-shaped spring 6. At the same time, when the movable rod 7 rises, it will drive the adjusting rods 8 on both sides to tilt at an angle.

[0023] Reference Figure 4 and Figure 5 Each end of the adjusting rod 8 has a limiting groove 801. U-shaped frames 12 are symmetrically installed on the inner side walls of the support frame 5. A sliding rod 13 is installed between the inner side walls of the U-shaped frames 12 and inside the limiting groove 801. When the adjusting rod 8 is adjusted in angle, the limiting groove 801 at one end of the adjusting rod 8 slides outside the sliding rod 13. When the adjusting rod 8 is tilted in angle adjustment, the limiting block 10 is tilted synchronously through the fixing block 9. This increases the stability of the adjusting rod 8 in angle adjustment by having the limiting groove 801 at one end slide outside the sliding rod 13. When the adjusting rod 8 is tilted in angle adjustment, the limiting block 10 is tilted synchronously through the fixing block 9, so that one end of the limiting block 10 moves away from the two trapezoidal blocks 16 on the limiting plate 11, thereby releasing the restriction on the lifting of the lifting door 3.

[0024] Reference Figure 4 - Figure 5 The installation slot 202 is equipped with a limit plate 11. Several sets of trapezoidal blocks 16 are evenly spaced on the outside of the limit plate 11. The trapezoidal blocks 16 are right-angled trapezoids with an inclined bottom. The end of the limit block 10 away from the fixed block 9 is set as a wedge shape. When the lifting door is adjusted and opened, the external control unit will control the electric telescopic rod 15 to extend, thereby resetting the movable rod 7 and simultaneously driving the two adjusting rods 8 to reset. Therefore, the limit block 10 will be reset and reconnected between the two trapezoidal blocks 16 on the limit plate 11 to restrict and lock the lifting door 3, preventing the lifting door from falling due to the breakage of the steel wire rope outside the lifting door.

[0025] Reference Figure 1 Both ends of the door frame 2 are equipped with outer shells 17. The outer shells 17 not only provide an aesthetic appearance for the entire device, but also play a role in protecting the internal mechanical structure. During the operation of the lifting door 3, the outer shells 17 can prevent external objects from colliding with the internal mechanical structure, thereby ensuring the safety and stability of the entire device.

[0026] The implementation principle of the electric door anti-fall device of this application is as follows: During the use of the lifting door, the lifting door is first controlled by an external controller. When the lifting door needs to be opened, the electric telescopic rod 15 is activated first. The retraction of the electric telescopic rod 15 can simultaneously drive the movable rod 7 to rise. When the movable rod 7 rises, its bottom will squeeze the arc-shaped spring 6. At the same time, when the movable rod 7 rises, it will drive the adjusting rods 8 on both sides to tilt at an angle. When the adjusting rod 8 tilts at an angle, one end of the limiting groove 801 slides outside the slide rod 13, which increases the stability of the adjusting rod 8 in tilting at an angle. Furthermore, when the adjusting rod 8 tilts at an angle, it will simultaneously drive the limiting block 10 to tilt through the fixing block 9, thereby causing one end of the limiting block 10 to move away from the two trapezoidal blocks 16 on the limiting plate 11, thus... The restriction on the lifting of the lifting door 3 is lifted, and then the controller will control the lifting door 3 to rise again. The speed sensor 4 can detect the lifting speed of the lifting door 3. After the lifting door is adjusted and opened, the external control unit will control the electric telescopic rod 15 to extend, thereby resetting the movable rod 7 and simultaneously driving the two adjusting rods 8 to reset. Therefore, the limit block 10 will reset and reconnect between the two trapezoidal blocks 16 on the limit plate 11, restricting and locking the lifting door 3 to prevent the lifting door from falling due to the breakage of the steel wire rope outside the lifting door. The outer shell 17 not only provides an aesthetic appearance for the entire device, but also plays a role in protecting the internal mechanical structure. During the operation of the lifting door 3, the outer shell 17 can prevent external objects from colliding with the internal mechanical structure, thereby ensuring the safety and stability of the entire device.

[0027] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An anti-fall device for electric doors, characterized in that, The system includes a base, a door frame mounted on top of the base, symmetrical grooves on the inner side walls of the door frame, mounting slots symmetrically located on the inner side walls of the door frame on both sides of the grooves, a lifting door mounted inside the grooves, a speed sensor mounted on top of the lifting door, a support frame mounted between the two ends of the top of the lifting door, an arc-shaped spring plate mounted on the bottom of the support frame, a movable rod mounted on the bottom of the support frame passing through the arc-shaped spring plate, adjusting rods symmetrically mounted on both sides of the bottom of the movable rod, a fixing block mounted on the bottom of the adjusting rod away from the movable rod, and limit blocks symmetrically mounted on both ends of the outer side of the fixing block.

2. The electric door anti-fall device according to claim 1, characterized in that, Each end of the adjusting rod has a limiting groove. U-shaped frames are symmetrically installed on the inner side walls of the support frame. Sliding rods are installed between the inner side walls of the U-shaped frames and inside the limiting grooves.

3. The electric door anti-fall device according to claim 2, characterized in that, A fixed frame is installed on the top of the support frame, and an electric telescopic rod is installed on the top inner side of the fixed frame. One end of the movable rod passes through the support frame and is connected to the movable end of the electric telescopic rod.

4. The electric door anti-fall device according to claim 3, characterized in that, The bottom end of the movable rod is rotatably connected to both adjusting rods.

5. The electric door anti-fall device according to claim 4, characterized in that, A limiting plate is installed inside the mounting slot. Several sets of trapezoidal blocks are evenly spaced on the outside of the limiting plate. The trapezoidal blocks are right-angled trapezoids with an inclined bottom. The end of the limiting block away from the fixing block is set as a wedge shape.

6. The electric door anti-fall device according to claim 5, characterized in that, Both ends of the door frame are fitted with outer shells.

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