Roller shutter door motor side anti-falling device
By designing the anti-falling device on the side of the roller shutter door motor, the limit structure of the bracket plate, sprocket, chain, wheel shaft head and anti-falling gear, the risk of falling roller shutter door is solved and the safety and stability is improved.
Patent Information
- Application Number
- CN202422284765.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing anti-chain safety protection device of roller shutter doors has poor stability and reliability, which leads to inability to effectively protect the door body when it falls, and there is a risk of hurting people.
A rolling shutter door motor side anti-fall device is designed, including a bracket plate, motor, sprocket, chain, wheel shaft head, rolling shutter door rotating shaft and anti-fall gear, and preventing the rolling shutter door body from falling through the limit structure and fixed connecting plate.
Effectively prevent the roller shutter door from falling from a high altitude, avoid accidents of injury, and improve the stability and safety of the device.
Smart Images
Figure CN223151956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of engineering technology, in particular to an anti-falling device on the motor side of a rolling shutter door. Background Art
[0002] Rolling shutter doors are widely used in the market, such as in the fields of food, medicine, electronics, rubber, chemical industry, automotive, textile, logistics, environmental protection, etc., and can also be used on equipment or on production lines supporting equipment for isolation, partition, protection, etc.
[0003] At present, the rolling shutter doors in the industry only have a chain-breaking safety protection device, and the stability and reliability of the chain-breaking protection device are poor; when the door body falls, effective protection cannot be fully achieved. Content of the Utility Model
[0004] In view of the defects in the prior art, the utility model provides an anti-falling device on the motor side of a rolling shutter door, including: a support plate, a motor arranged on the support plate, a first sprocket arranged at the output end of the motor, a second sprocket arranged on the support plate, a chain connecting the first sprocket and the second sprocket, a wheel disc shaft head connected to the second sprocket, a rolling shutter door rotating shaft connected to the wheel disc shaft head, and an anti-falling frame arranged below the motor and the rolling shutter door rotating shaft;
[0005] One end of the rolling shutter door rotating shaft is provided with a transmission connecting plate, and the transmission connecting plate is fixedly connected with the wheel disc shaft head.
[0006] Preferably, the anti-falling frame includes a frame body arranged below the rolling shutter door rotating shaft and blocking rods arranged on the frame body on both sides of the rolling shutter door rotating shaft.
[0007] Preferably, a through hole is arranged in the center of the wheel disc shaft head, a limiting shaft is arranged in the through hole, and a snap ring is arranged at the other end of the limiting shaft, and is fixedly connected with the support plate through the snap ring.
[0008] Preferably, a limiting groove is arranged on the outer circumferential surface of the wheel disc shaft head, and a protrusion adapted to the limiting groove is arranged on the transmission connecting plate.
[0009] Preferably, the cross section of the limiting groove is in a convex shape structure.
[0010] Preferably, motor mounting holes are arranged on the support plate.
[0011] Preferably, bending parts are arranged by extending inwards at the upper and lower ends of the support plate.
[0012] Advantages of the Utility Model
[0013] The utility model provides an anti-falling device on the motor side of a rolling shutter door, which can effectively prevent the door body of the rolling shutter door from falling, and solve the accident that the rolling shutter door falls from a height and injures people. During the operation of the rolling shutter door, when the motor drive plate of the transmission rotating shaft disengages from the hub shaft head of the large sprocket, and there is no fixed restraint point for the rotating shaft of the rolling shutter door, there is a risk that the door body and the rotating shaft of the rolling shutter door will fall from a height. The anti-falling device on the motor side of the rolling shutter door designed on the support plate can effectively prevent the risk of the rolling shutter door falling from a height. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0015] Figure 2 is Figure 1 a partial structural diagram of the embodiment;
[0016] Figure 3 is a schematic structural diagram of the hub shaft head;
[0017] Figure 4 is Figure 3 an exploded structural diagram of the embodiment;
[0018] Among them, 1. Support plate; 2. Motor; 3. First sprocket; 4. Second sprocket; 5. Chain; 6. Hub shaft head; 7. Rolling shutter door rotating shaft; 8. Anti-falling frame; 9. Transmission connecting plate; 10. Frame body; 11. Stop bar; 12. Through hole; 13. Limit shaft; 14. Limit groove; 16. Motor mounting hole position; 17. Bending part. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that those of ordinary skill in the art can make several deformations and improvements without departing from the concept of the present utility model. These all belong to the protection scope of the present utility model.
[0020] Refer to Figures 1-4
[0021] The present utility model provides an anti-falling device on the motor side of a rolling shutter door, comprising: a support plate 1, a motor 2 provided on the support plate 1, a first sprocket 3 provided at the output end of the motor 2, a second sprocket 4 provided on the support plate 1, a chain 5 connecting the first sprocket 3 and the second sprocket 4, a wheel disc shaft head 6 connected to the second sprocket 4, a rolling shutter door rotating shaft 7 connected to the wheel disc shaft head 6, and an anti-falling frame 8 provided below the motor 2 and the rolling shutter door rotating shaft 7; one end of the rolling shutter door rotating shaft 7 is provided with a transmission connecting plate 9, and the transmission connecting plate 9 is fixedly connected to the wheel disc shaft head 6. During the operation of the rolling shutter door, when the transmission plate of the motor 2 of the transmission rotating shaft is disengaged from the engagement with the large sprocket wheel disc shaft head 6, and there is no fixed constraint point for the rolling shutter door rotating shaft 7, there is a risk that the rolling shutter door body and the rotating shaft will fall from a height. The anti-falling device on the motor side of the rolling shutter door designed on the rolling shutter door support plate 1 can effectively prevent the risk of the rolling shutter door falling from a height.
[0022] In one embodiment, the anti-falling frame 8 includes a frame body 10 provided below the rolling shutter door rotating shaft 7 and retaining bars provided on the frame body 10 on both sides of the rolling shutter door rotating shaft 7. The frame body 10 and the retaining bars 11 are directly welded and formed using angle steel, square tubes or steel plates. The height of the retaining bars 11 is higher than the centers of the rolling shutter door rotating shaft 7 and the output shaft of the motor 2.
[0023] In one embodiment, a through hole 12 is provided at the center of the wheel disc shaft head 6, a limiting shaft 13 is provided in the through hole 12, a snap ring is provided at the other end of the limiting shaft 13, and it is fixedly connected to the support plate 1 through the snap ring. The limiting shaft 13 is used for limiting the wheel disc shaft head 6 to prevent the risk of material dropping.
[0024] In one embodiment, a limiting groove 14 is provided on the outer circumferential surface of the wheel disc shaft head 6, and a protrusion adapted to the limiting groove 14 is provided on the transmission connecting plate 9. The protrusion can be a transmission key provided on the transmission connecting plate 9.
[0025] In one embodiment, the cross section of the limiting groove 14 is in a convex shape structure, and the narrower end of the limiting groove 14 is arranged away from the support plate 1.
[0026] In one embodiment, motor mounting hole positions are provided on the support plate 1 for strengthening the strength of the motor mounting hole positions.
[0027] In one embodiment, bending portions 17 are extended inwardly at the upper and lower ends of the support plate 1.
[0028] Advantages of the present utility model
[0029] The utility model provides an anti-falling device on the motor side of a rolling shutter door, which can effectively prevent the door body of the rolling shutter door from falling, and solves the accident that the rolling shutter door falls from a height and injures people. During the operation of the rolling shutter door, when the motor drive plate of the drive rotating shaft is disengaged from the hub shaft head of the large sprocket, and there is no fixed constraint point for the rolling shutter door rotating shaft, there is a risk that the door body and the rotating shaft of the rolling shutter door will fall from a height. The anti-falling device on the motor side of the rolling shutter door designed on the rolling shutter door support plate 1 can effectively prevent the risk of the rolling shutter door falling from a height.
[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.
[0032] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0033] The above content is a further detailed description of the present utility model in combination with specific implementation manners, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the art of the present utility model, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made.
Claims
1. A device for preventing the fall on the motor side of a rolling shutter door, characterized in that, Comprising: A support plate, a motor disposed on the support plate, a first sprocket disposed at the output end of the motor, a second sprocket disposed on the support plate, a chain connecting the first sprocket and the second sprocket, a hub shaft connected to the second sprocket, a rolling shutter door rotating shaft connected to the hub shaft, and a fall prevention frame disposed below the motor and the rolling shutter door rotating shaft; One end of the rolling shutter door rotating shaft is provided with a transmission connection plate, and the transmission connection plate is fixedly connected to the hub shaft.
2. The anti-falling device on the motor side of the rolling shutter door according to claim 1, characterized in that, The fall prevention frame includes a frame body disposed below the rolling shutter door rotating shaft and retaining bars disposed on the frame body on both sides of the rolling shutter door rotating shaft.
3. The anti-falling device on the motor side of a rolling shutter door according to claim 1, characterized in that A through hole is provided in the center of the hub shaft, a limiting shaft is disposed in the through hole, and a snap ring is disposed at the other end of the limiting shaft, and is fixedly connected to the support plate through the snap ring.
4. The anti-falling device on the motor side of a rolling shutter door according to claim 1, characterized in that, A limiting groove is provided on the outer circumferential surface of the hub shaft, and a protrusion adapted to the limiting groove is provided on the transmission connection plate.
5. The anti-falling device on the motor side of a rolling shutter door according to claim 4, characterized in that, The cross section of the limiting groove is in a convex-shaped structure.
6. The anti-falling device on the motor side of a rolling shutter door according to claim 1, characterized in that, Motor mounting hole positions are provided on the support plate.
7. The anti-falling device on the motor side of a rolling shutter door according to claim 1, characterized in that, Bending portions extend inwardly at the upper and lower ends of the support plate.