CN220580922U

CN220580922U - Anti-falling device for rolling shutter door

Info

Publication number: CN220580922U
Application number: CN202321803071.6U
Authority: CN
Inventors: 蒋增运; 蒋琪
Original assignee: Jiangsu Xianglian Security Technology Co ltd
Current assignee: Jiangsu Xianglian Security Technology Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-03-12
Anticipated expiration: 2033-07-11

Abstract

The utility model discloses an anti-falling device for a rolling door, which relates to the technical field of rolling doors and comprises a door frame and a plurality of door plates arranged on the door frame, wherein two adjacent door plates are rotationally connected through a hinge, a pair of sliding grooves are formed in the door frame, two ends of each door plate are slidably connected in the corresponding sliding groove, and an anti-falling unit for carrying the falling door plate is arranged on the door frame; the anti-falling unit comprises a pair of connecting shafts which are inserted into the door frame, the connecting shafts are communicated with the sliding grooves, one ends of the connecting shafts are rotationally connected with connecting rods, and second springs are arranged at the rotating connection positions of the connecting shafts and the connecting rods. According to the utility model, the connecting rod, the second spring and the stop block are arranged to replace the existing anti-falling structure, so that the collision force with the door plate can be reduced, certain buffering is generated during collision, the service life of parts is prolonged, and the practicability is high.

Description

Anti-falling device for rolling shutter door

Technical Field

The utility model relates to the technical field of rolling doors, in particular to an anti-falling device of a rolling door.

Background

Rolling doors are doors which are connected in series by articulated door sheets and rotate up and down in a fixed slideway by taking a scroll above the door as a center, and are widely used in shops.

Most of the conventional rolling doors at the present stage lack corresponding protection measures, if faults occur during use, the door plate is likely to fall down directly, and certain potential safety hazards exist.

For example, chinese patent publication No. CN21866918U discloses a rolling shutter door anti-falling device, which comprises a first housing, the inside wall of first casing is connected with the motor, rolling shutter door main part is installed to the inside wall of first casing, both ends all are connected with first bevel gear about the rolling shutter door main part, two the right flank of one of them of first bevel gears is connected with the output of motor, the bottom surface of first casing is connected with two second casings. This device is through being provided with the motor, utilizes the power that the motor provided, can drive first bevel gear and rotate, utilizes the meshing of first bevel gear and second bevel gear, can make the threaded rod rotate, through the cooperation of threaded rod, screw thread section of thick bamboo and connecting plate, can support the rolling slats door main part to this only has each spare part normal operating just can make the rolling slats door main part remove, thereby can avoid the rolling slats door main part to lead to falling because of the fault, has improved the security that this rolling slats door used, is favorable to promoting and uses.

The anti-falling device adopted by the anti-falling device of the rolling door is related to the running structure of the rolling door, and although the anti-falling effect is realized, the anti-falling device and the running of the rolling door are influenced, so that the normal and effective running of the rolling door is not facilitated, the whole rolling door cannot be used as long as the anti-falling device is damaged, the practicability is lower, and the existing anti-falling device which does not generate linkage with the rolling door still has some problems in the using process.

For example, chinese patent publication No. CN21510865U discloses a rolling shutter door anti-falling device, which relates to the technical field of rolling shutter door protection, and comprises a rolling shutter door body, wherein a hook is arranged on the rolling shutter door body, one end of the hook is hinged with the rolling shutter door body, a control member is arranged on the rolling shutter door body, the control member is matched with the hook, and a tensioning member is arranged at one side, away from the control member, of the hinged part of the hook and the rolling shutter door body; the rolling shutter door is characterized in that a spacing velocimeter is arranged on the rolling shutter door body and is electrically connected with a control piece. The chain on this application helps preventing rolling slats door body takes place the fracture after long-time use, smashes people and property because of the dead weight drops fast, causes the loss of casualties and property.

Above-mentioned anti-falling device is not with rolling slats door linkage, do not influence rolling slats door's normal use, but when rolling slats door takes place to fall, collide with the pothook, because the collision stress point of pothook is farther with the strong point distance of pothook, the moment is great, therefore, the pothook easily atress causes the damage, and when the pothook atress produces to rock or the skew, easily cause the unable effective meshing of gear's problem, the influence is used, the practicality is lower, and the anti-falling device adopts electric power structure cooperation to realize judging whether the rolling slats door takes place to fall, and when taking place the power failure scheduling problem, can't realize anti-falling protection, still have the potential safety hazard, the practicality is lower, therefore, the application provides a rolling slats door anti-falling device to satisfy the demand.

Disclosure of Invention

The utility model mainly aims to provide the anti-falling device for the rolling door, which can effectively solve the problem that the existing anti-falling device provided in the background technology is easy to be damaged by impact, and achieves the purposes of improving the anti-falling effect and reducing the potential safety hazard.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the rolling shutter door anti-falling device comprises a door frame and a plurality of door plates arranged on the door frame, wherein two adjacent door plates are connected in a rotating manner through a hinge, a pair of sliding grooves are formed in the door frame, two ends of each door plate are connected in the sliding grooves in a sliding manner, and an anti-falling unit for carrying the falling door plate is arranged on the door frame;

the anti-falling unit comprises a pair of connecting shafts which are inserted into the door frame, the connecting shafts are communicated with the sliding grooves, one ends of the connecting shafts are rotationally connected with connecting rods, the connecting shafts and the connecting rods are provided with second springs at rotating connection positions, and one ends of the connecting rods are fixedly connected with stop blocks for receiving falling door plates.

Preferably, the connecting shaft is of a hexagonal shaft structure, and one end of the connecting shaft is provided with a first chamfer.

Preferably, the connecting shaft is sleeved with a first spring, one end of the first spring is fixedly connected with the connecting shaft, and the other end of the first spring is fixedly connected with the door frame.

Preferably, the door further comprises a first rotating shaft which is rotationally connected to the door plate located at the lowest position, two ends of the first rotating shaft are respectively inserted into the two sliding grooves, driving gears are fixedly connected to two ends of the first rotating shaft, a pair of bearing seats are fixedly connected to two ends of the door plate located at the lowest position, the same second rotating shaft is rotationally connected to each pair of bearing seats, driven gears are fixedly connected to the second rotating shaft, the driving gears are meshed with the driven gears, and a connecting block is fixedly connected to one end of the second rotating shaft.

Preferably, a handle is fixedly connected to the middle position of the first rotating shaft, and a third spring is sleeved on the first rotating shaft.

Preferably, the connecting block is of an L-shaped structure, and a second chamfer matched with the first chamfer is formed in the connecting block.

Preferably, the stop block is coated with a protection pad, and the stop block is rotatably connected with a pulley.

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up connecting rod, second spring and dog, replace current anti-falling structure, reducible and the collision dynamics of door plant produces certain buffering during the collision, improves the life of spare part, and the practicality is high.

2. Through setting up connecting axle, handle, driving gear, driven gear, connecting block, first chamfer and second chamfer, realize when rolling slats door's normal use for the door plant misplaces with anti-falling unit, can not influence rolling slats door's normal use, and after rolling slats door is opened completely, can realize continuing anti-falling function again, and whole device electric power does not participate in, when taking place power failure, short circuit scheduling problem, can not influence anti-falling effect, factor of safety is high.

Drawings

FIG. 1 is a schematic perspective view of a roll-up door fall arrest device;

FIG. 2 is a partially cut-away perspective view of a rolling door fall protection device;

FIG. 3 is an enlarged schematic view of the area A in FIG. 2;

FIG. 4 is a schematic view of a three-dimensional enlarged structure of a door panel;

fig. 5 is a schematic view of a three-dimensional enlarged structure of the connecting rod.

In the figure: 1. a door frame; 2. a door panel; 3. an anti-falling unit; 4. a connecting shaft; 5. a connecting rod; 6. a second spring; 7. a stop block; 8. a first rotating shaft; 9. a handle; 10. a drive gear; 11. a bearing seat; 12. a driven gear; 13. a connecting block; 14. a first chamfer; 15. a second chamfer; 16. and (3) a pulley.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

Examples: referring to the anti-falling device of the rolling shutter door shown in fig. 1-5, the anti-falling device comprises a door frame 1 and a plurality of door plates 2 arranged on the door frame 1, wherein two adjacent door plates 2 are connected through hinge rotation, a pair of sliding grooves are formed in the door frame 1, two ends of each door plate 2 are slidably connected in the corresponding sliding groove, an anti-falling unit 3 used for carrying the falling door plate 2 is arranged on the door frame 1, the anti-falling unit 3 is used for replacing an existing anti-falling structure, normal operation of the rolling shutter door is not affected, the structure is stable, collision can be reduced, and the safety coefficient is high.

The anti-falling unit 3 comprises a pair of connecting shafts 4 which are inserted into the door frame 1, the connecting shafts 4 are of a hexagonal shaft structure, one ends of the connecting shafts 4 are provided with first chamfers 14, one ends of the connecting shafts 4 are inserted into sliding grooves, one ends of the connecting shafts 4 are rotationally connected with connecting rods 5, one ends of the connecting shafts 4 are provided with bearings, the connecting shafts 4 are rotationally connected with the connecting rods 5 through the bearings, second springs 6 are arranged at the rotational connection positions of the connecting shafts 4 and the connecting rods 5, one ends of the connecting rods 5 are fixedly connected with stop blocks 7 for receiving falling door plates 2, protective pads are coated on the stop blocks 7 and used for protecting the door plates 2, the door plates 2 are prevented from being damaged by collision, and pulleys 16 are rotationally connected to the stop blocks 7.

When rolling slats door takes place to fall, at first door plant 2 drops downwards, with dog 7 contact, along with door plant 2 continues to drop downwards, drives dog 7 and removes, under the cooperation of connecting rod 5, drives the compression of second spring 6 for the door plant 2 receives the power increases gradually, until dog 7 is contradicted by portal 1, realizes preventing falling, improves the security performance, through the cooperation of connecting rod 5, second spring 6 and dog 7, can prevent that the structure of preventing falling from taking place great power suddenly and causing the damage, has replaced current anti-falling structure, and life is high.

As shown in fig. 2-4, the door further comprises a first rotating shaft 8 rotatably connected to the door plate 2 located at the lowest position, two ends of the first rotating shaft 8 are respectively inserted into two sliding grooves, two ends of the first rotating shaft 8 are fixedly connected with a driving gear 10, two ends of the door plate 2 located at the lowest position are fixedly connected with a pair of bearing seats 11, each pair of bearing seats 11 are rotatably connected with the same second rotating shaft, a driven gear 12 is fixedly connected to the second rotating shaft, the driving gear 10 is meshed with the driven gear 12, one end of the second rotating shaft is fixedly connected with a connecting block 13, a first spring is sleeved on the connecting shaft 4, one end of the first spring is fixedly connected with the connecting shaft 4, the other end of the first spring is fixedly connected to the door frame 1, a handle 9 is fixedly connected to the middle position of the first rotating shaft 8, a third spring is sleeved on the first rotating shaft 8, a second chamfer 15 matched with the first chamfer 14 is formed in an L-shaped structure on the connecting block 13.

When the rolling shutter door is normally used, the rolling shutter door is pulled to slide downwards through the handle 9 to be closed, at the moment, the handle 9 is stressed to rotate ninety degrees, the first rotating shaft 8 is driven to rotate, the driving gear 10 is driven to rotate, the driven gear 12 is driven to rotate through the driving gear 10, the connecting block 13 is driven to rotate through the driven gear 12, then the handle 9 is continuously pulled to drive the rolling shutter door to descend, at the moment, under the cooperation of the first chamfer 14 and the second chamfer 15, along with the contact of the connecting block 13 with the connecting shaft 4, the connecting shaft 4 is pushed to move, and then the connecting rod 5 is driven to move with the stop dog 7 on the connecting rod 5, so that the stop dog 7 is misplaced with the door plate 2, the rolling shutter door is not influenced to descend continuously, when part of the door plate 2 moves to the lower part of the stop dog 7, the connecting block 13 is long enough and is not separated from the connecting shaft 4, at the moment, the pulley 16 on the stop dog 7 is in conflict with the door plate 2, rolling friction through the pulley 16 at the moment, the normal closing and opening of the rolling shutter door are convenient, when the rolling shutter door is opened to a certain degree, the connecting block 13 is separated from the first chamfer 14, under the action of the first spring, the stop dog 7 is reset, the rolling shutter door is enabled to realize, the anti-falling function is realized, and the anti-falling effect is not normally achieved, and the anti-falling effect is not normally is realized, and the anti-falling effect is high, and the anti-falling effect is achieved, and the anti-falling effect is not normal, and the anti-falling door is opened.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a rolling slats door anti-falling device, includes portal (1) with set up in a plurality of door plant (2) on portal (1), adjacent two rotate through the hinge between door plant (2) and be connected, a pair of spout has been seted up on portal (1), the both ends sliding connection of door plant (2) in the spout, its characterized in that: the door frame (1) is provided with an anti-falling unit (3) for carrying a falling door plate (2);

the anti-falling unit (3) comprises a pair of connecting shafts (4) which are inserted into the door frame (1), the connecting shafts (4) are communicated with the sliding grooves, one ends of the connecting shafts (4) are rotationally connected with connecting rods (5), second springs (6) are arranged at the rotating connection positions of the connecting shafts (4) and the connecting rods (5), and one ends of the connecting rods (5) are fixedly connected with stop blocks (7) for receiving falling door plates (2).

2. The rolling shutter door falling protection device according to claim 1, wherein the connecting shaft (4) has a hexagonal shaft structure, and one end of the connecting shaft (4) is provided with a first chamfer (14).

3. The rolling shutter door falling protection device according to claim 1, wherein a first spring is sleeved on the connecting shaft (4), one end of the first spring is fixedly connected with the connecting shaft (4), and the other end of the first spring is fixedly connected to the door frame (1).

4. The rolling shutter door anti-falling device according to claim 2, further comprising a first rotating shaft (8) rotatably connected to the door plate (2) located at the lowest position, wherein two ends of the first rotating shaft (8) are respectively inserted into two sliding grooves, two ends of the first rotating shaft (8) are fixedly connected with driving gears (10), two ends of the door plate (2) located at the lowest position are fixedly connected with a pair of bearings (11), each pair of bearing seats (11) are rotatably connected with the same second rotating shaft, a driven gear (12) is fixedly connected to the second rotating shaft, the driving gears (10) are meshed with the driven gears (12), and one end of each second rotating shaft is fixedly connected with a connecting block (13).

5. The rolling shutter door falling protection device according to claim 4, wherein a handle (9) is fixedly connected to the middle position of the first rotating shaft (8), and a third spring is sleeved on the first rotating shaft (8).

6. The rolling door anti-falling device according to claim 4, wherein the connecting block (13) is of an L-shaped structure, and a second chamfer (15) matched with the first chamfer (14) is formed on the connecting block (13).

7. The rolling shutter door falling protection device according to claim 1, wherein the stop block (7) is coated with a protection pad, and the stop block (7) is rotatably connected with a pulley (16).