Outward opening device of roller shutter door

Abstract

The utility model relates to an outward opening device for a roller shutter door. The outward opening device comprises a roller shutter door motor and a driving assembly. An extended manual chain is hung down from the roller shutter door motor; the driving assembly comprises a chain wheel and an external input end; the lower end of the manual chain is matched with a chain wheel; the chain wheel is in transmission connection with an external input end exceeding the wall body; under the condition of power failure in a building or power failure of the roller shutter door, people can control the roller shutter door to rise from the outside, enter the building without damaging a door lock, and do not need to climb to a high position for operation.

Description

Technical Field

[0001] This utility model relates to the technical field of roller shutter door equipment, and in particular to an outward opening device for roller shutter doors. Background Technology

[0002] Roller shutters are suitable for commercial storefronts, garages, shopping malls, hospitals, factories, mines, 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. Roller shutters have specific motors, generally installed on the inside of the building facing the doorway. Existing roller shutter motors, such as the one published in patent application CN108571283A, have a manual device. This manual device is connected to the transmission device via a clutch, and the opening and closing of the roller shutter is driven by a hanging chain. However, the chain on existing roller shutter motors is very short, requiring a person to climb to a high position to operate it manually. When the roller shutter is fully closed and the power is off, it cannot be opened from the outside. Entry requires breaking the lock to enter the building and climbing to a high position to operate it. The whole process is not only unsafe but also causes some property damage. Summary of the Invention

[0003] The purpose of this utility model is to solve the above-mentioned problems and provide an outward opening device for roller shutter doors.

[0004] The technical solution of this utility model is: a roller shutter door outward opening device, including a roller shutter door motor and a drive assembly; the roller shutter door motor has a manual chain hanging down, and the opening and closing of the roller shutter door can be controlled by pulling the manual chain; the drive assembly is set below the manual chain and embedded in the wall next to the roller shutter door from the outside; the drive assembly includes a chain wheel that cooperates with the manual chain and an external input end that is connected to the chain wheel for transmission; the external input end extends outward beyond the wall; the external input end is operated from the outside to control the chain wheel to rotate, thereby pulling the manual chain to drive the roller shutter door to open and close.

[0005] Preferably, the external input end includes an input device and a drive shaft; the drive shaft is coaxially fixed to the input device and the chain wheel; the input device is matched with a normal hand crank and sleeve; this is the simplest external input end transmission connection method; in this transmission connection method, the input device is operated by the matching hand crank or sleeve; the larger the diameter of the chain wheel, the faster the roller shutter door rises and falls.

[0006] Preferably, the external input end includes an input device, drive shaft B, drive shaft C, drive wheel A, and drive wheel B; drive shaft B is coaxially and fixedly connected to the input device and drive wheel A; drive shaft C is coaxially and fixedly connected to drive wheel B and chain wheel; drive wheel A and drive wheel B cooperate with each other; the input device is matched with a normal hand-cranked device and sleeve; this is a relatively complex external input end transmission connection method; in this transmission connection method, the input device is operated by a matching hand-cranked device or sleeve; adjusting the transmission ratio of drive wheel A and drive wheel B can adjust the lifting speed of the roller shutter door.

[0007] Furthermore, the diameter of transmission wheel A is smaller than that of transmission wheel B; thus, the external input end can more precisely control the lifting and lowering speed of the roller shutter door.

[0008] Preferably, the drive assembly is covered by an outer housing to protect the drive assembly; the outer side of the housing is open to expose the external input end for external operation, and the top passes through a manual chain to avoid interference between the manual chain and the housing.

[0009] Furthermore, the top of the outer casing is provided with guide holes corresponding to the manual chain, which guides the manual chain as it enters the outer casing and the chain wheel, preventing it from getting tangled.

[0010] Preferably, the outer casing has a side-opening door at the external opening, which can be closed when not in use to protect against wind and rain.

[0011] Preferably, the side-opening door is equipped with a lock cylinder; the inner end face of the lock cylinder is equipped with a lock tongue for closing the side-opening door.

[0012] The beneficial effects of this utility model are as follows: The outward opening device for the roller shutter door of this utility model has the following advantages:

[0013] (1) The manual chain of the roller shutter motor of this utility model extends downward and hangs down naturally; the lower end of the manual chain is equipped with a chain wheel; the chain wheel is connected to the external input end set outside; in this way, a person outside can drive the chain wheel to rotate through the external input end, thereby pulling the manual chain and driving the roller shutter to rise and fall; in the event of a power outage inside the building or a power failure of the roller shutter, people can control the roller shutter to rise from the outside without breaking the door lock to enter the building or climbing to a high place to operate it;

[0014] (2) The chain wheel of this utility model is provided with a guide hole above it, which can be used to organize the manual chain that enters the outer shell and cooperates with the chain wheel, so as to avoid the manual chain being pulled getting tangled together and damaging the lifting and lowering of the roller shutter door. Attached Figure Description

[0015] Figure 1 This utility model relates to a three-dimensional installation method for an outward-opening roller shutter door. Figure 1 ;

[0016] Figure 2 This utility model relates to a three-dimensional installation method for an outward-opening roller shutter door. Figure 2 ;

[0017] Figure 3 This is a perspective view of the driving component in Embodiment 1;

[0018] Figure 4 yes Figure 3 Top view;

[0019] Figure 5 yes Figure 4 AA section view;

[0020] Figure 6 This is a perspective view of the driving component in Embodiment 2;

[0021] Figure 7 yes Figure 6 Top view;

[0022] Figure 8 yes Figure 7 BB section view;

[0023] In the diagram: 01. Roller shutter door, 02. Wall, 1. Roller shutter door motor, 11. Manual chain, 21. Chain wheel, 221. Input device, 222. Drive shaft A, 223. Drive shaft B, 224. Drive shaft C, 225. Drive wheel A, 226. Drive wheel B, 23. Outer shell, 231. Guide hole, 232. Side door, 2321. Lock cylinder, 2322. Lock tongue. Detailed Implementation

[0024] Example 1: See Figure 1-5 A roller shutter door outward opening device includes a roller shutter door motor and a drive assembly. The roller shutter door motor has a manual chain hanging down, which can control the opening and closing of the roller shutter door by pulling the manual chain. The drive assembly is located below the manual chain and is embedded in the wall next to the roller shutter door from the outside. The drive assembly includes a chain wheel that cooperates with the manual chain and an external input end that is driven by the chain wheel. The external input end extends outward beyond the wall. The external input end is operated from the outside to control the rotation of the chain wheel, thereby pulling the manual chain to drive the roller shutter door to open and close.

[0025] Compared to existing technologies, the manual chain in this embodiment is extended to cooperate with the chain wheel; correspondingly, the chain wheel is also positioned at a height suitable for a person's standing height for easy maintenance; the chain wheel is similar to the wheel and axle structure of the manual chain in the existing roller shutter motor, and will not be described in detail in this embodiment.

[0026] In this embodiment, the roller shutter motor is located on one side of the roller shutter door, and the chain wheel is directly below the manual chain of the roller shutter motor, which can ensure that the chain wheel can smoothly pull the roller shutter door.

[0027] Based on this, if a person outside the building discovers a power outage or a power failure in the roller shutter door, they can operate the external input terminal inside the wall on one side of the roller shutter door to rotate the chain wheel and pull the manual chain to drive the roller shutter door to rise. This does not require breaking the door lock to enter the building or climbing to a high place to operate.

[0028] The external input end includes an input device and a drive shaft; the drive shaft is coaxially fixed to the input device and the chain wheel; the input device is matched with a normal hand-cranked device and sleeve; this is the simplest external input end transmission connection method; in this transmission connection method, the input device is operated through the matching bolt sleeve; the larger the diameter of the chain wheel, the faster the roller shutter door rises and falls.

[0029] The drive assembly is enclosed by a housing to protect it; the outer side of the housing has an opening to expose the external input end for external operation, and the top has a manual chain that passes through it to prevent the manual chain from interfering with the housing.

[0030] The top of the outer casing has guide holes corresponding to the manual chain, which guide the manual chain as it enters the casing and the chain wheel to prevent it from getting tangled.

[0031] The outer casing has a side-opening door that can be closed when not in use to protect against wind and rain.

[0032] The side-opening door is equipped with a lock cylinder; the inner end face of the lock cylinder is equipped with a lock tongue for closing the side-opening door.

[0033] The working process of this embodiment is as follows: A person outside the device uses a hand crank or socket wrench matched with the input device to rotate the drive shaft; the rotation of the drive shaft causes the chain wheel to rotate; the chain wheel pulls the manual chain, thereby controlling the opening of the roller shutter door.

[0034] Example 2: See Figure 6-8Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the external input end includes an input device, drive shaft B, drive shaft C, drive wheel A, and drive wheel B; drive shaft B is coaxially fixed to the input device and drive wheel A; drive shaft C is coaxially fixed to drive wheel B and chain wheel; drive wheels A and B cooperate with each other; the input device is matched with a normal hand-cranked device or sleeve; this is a more complex external input end transmission connection method; in this transmission connection method, the input device is operated by a matching hand-cranked device or sleeve; adjusting the transmission ratio of drive wheels A and B can adjust the lifting speed of the roller shutter door; in this example, drive wheels A and B are meshing gears; of course, other structures such as belt drive and chain drive can also be applied.

[0035] The diameter of drive wheel A is smaller than that of drive wheel B; this allows for more precise control of the roller shutter door's lifting and lowering speed from the external input end.

[0036] The working process of this embodiment is as follows: A person outside the device uses a hand crank or socket wrench matched with the input device to rotate the drive shaft B; the rotation of the drive shaft B drives the rotation of the drive wheel A; the rotation of the drive wheel A drives the chain wheel to rotate through the drive shaft C; and the chain wheel pulls the manual chain, thereby controlling the opening of the roller shutter door.

Claims

1. A roller shutter door outward opening device, characterized in that, It includes a roller shutter door motor and a drive assembly; the roller shutter door motor is equipped with a hanging manual chain; the drive assembly is located below the manual chain and is embedded in the wall next to the roller shutter door from the outside; the drive assembly includes a chain wheel that cooperates with the manual chain and an external input end that is connected to the chain wheel for transmission; the external input end extends outward beyond the wall.

2. The outward-opening device for a roller shutter door according to claim 1, characterized in that: The external input end includes an input device and a drive shaft; the drive shaft is coaxially fixed to the input device and the chain wheel; the input device is compatible with a normal hand-cranked device and a sleeve.

3. The outward-opening device for a roller shutter door according to claim 1, characterized in that: The external input terminal includes an input device, drive shaft B, drive shaft C, drive wheel A, and drive wheel B; drive shaft B is coaxially and fixedly connected to the input device and drive wheel A; drive shaft C is coaxially and fixedly connected to drive wheel B and chain wheel; drive wheel A and drive wheel B cooperate with each other; the input device is compatible with a normal hand-cranked device and sleeve.

4. The outward-opening device for a roller shutter door according to claim 1, characterized in that: The drive assembly is enclosed by a housing; the outer side of the housing has an opening, and the top passes through a manual chain.

5. The outward-opening device for a roller shutter door according to claim 4, characterized in that: The top of the outer casing has guide holes corresponding to the manual chain.

6. The outward-opening device for a roller shutter door according to claim 4, characterized in that: The outer casing has a side-opening door at the opening on the outer side.

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