Electronic limiting device of outdoor unit of roller shutter door machine

Abstract

The utility model relates to the technical field of roller shutter doors, in particular to an electronic limiting device of an outdoor unit of a roller shutter door machine, which comprises a box body, a control circuit board is connected in the box body through a limiting mechanism, a connecting table is arranged on the box body, a box cover is abutted against the connecting table, a rotating shaft is rotatably connected onto the box cover through a bearing, and the rotating shaft is connected with a motor. The rotating shaft is fixedly connected with a second magnet, the box body is fixedly connected with a first magnet, the opposite faces of the first magnet and the second magnet are opposite magnetic faces, and the first magnet limits the second magnet. The utility model has the characteristic that the internal control circuit board can be conveniently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter doors, in particular to an electronic limit device of an external hanging machine of a rolling shutter door machine. Background Art

[0002] Rolling doors are made of multi-jointed door panels connected in series. In a fixed slideway, the door rotates up and down with the reel above the door as the center. Rolling doors are suitable for commercial storefronts, garages, shopping malls, hospitals, factories, mines and other public places or residences. In order to make the rolling door stop at a fixed position and prevent the rolling door from being damaged, the existing technology uses an electronic limit device to limit the rolling door machine and the stroke. The electronic limit device is mainly composed of a shell and an internal control circuit board. The shell is generally fixed by bolts. When the internal control circuit board is damaged, it needs to be disassembled with the help of external tools, which increases the complexity of maintenance. Utility Model Content

[0003] The purpose of the utility model is to solve the problem in the prior art that when the internal control circuit board is damaged, it needs to be disassembled with the help of external tools, which increases the complexity of maintenance, and to propose an electronic limit device for the external machine of a rolling door machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An electronic limit device for an external machine of a rolling door machine is designed, comprising a box body, wherein a control circuit board is connected to the box body through a limit mechanism, a connecting platform is arranged on the box body, a box cover is abutted against the connecting platform, a rotating shaft is rotatably connected to the box cover through a bearing, a second magnet is fixedly connected to the rotating shaft, a first magnet is fixedly connected to the box body, the opposing surfaces of the first magnet and the second magnet are opposite magnetic surfaces, and the first magnet limits the second magnet.

[0006] Preferably, the limiting mechanism comprises a limiting column, a plurality of limiting columns are fixedly connected to the inner wall of the box body, a plurality of limiting holes are opened on the control circuit board, and the plurality of limiting columns can be respectively inserted into the limiting holes.

[0007] Preferably, a plurality of abutting edges are fixedly connected to the box cover, and the plurality of abutting edges abut against the control circuit board respectively.

[0008] Preferably, the control circuit board comprises a circuit board, on which a microprocessor, a control circuit, a revolution counter and a transmitter are arranged, and the microprocessor is signal-connected with the control circuit, the revolution counter and the transmitter.

[0009] Preferably, the revolution counter is a rotary encoder.

[0010] The utility model proposes an electronic limit device for an external machine of a rolling door machine, which has the beneficial effects of: utilizing the adsorption between magnets at the same time, preventing the second magnet from being separated from the rear of the first magnet during use, thereby ensuring the fixing effect; by rotating the rotating shaft, the second magnet can be driven to rotate, thereby releasing the limit of the first magnet on the second magnet, and the box cover can be disassembled for maintenance of the internal control circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of an electronic limit device for a roller shutter door machine external machine proposed by the utility model;

[0012] Figure 2 This is a three-dimensional diagram of an electronic limit device for a roller shutter door machine external machine proposed by the utility model;

[0013] Figure 3 This is a three-dimensional diagram of an electronic limit device (with the box cover hidden) for an external machine of a rolling door machine proposed by the utility model;

[0014] Figure 4 The present invention is a system block diagram of an electronic limit device for a roller shutter door machine external machine.

[0015] In the figure: 1. box body; 2. connecting platform; 3. limiting column; 4. abutting edge; 5. microprocessor; 6. control circuit; 7. revolution counter; 8. transmitter; 9. box cover; 10. first magnet; 11. rotating shaft; 12. second magnet; 13 circuit board. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-4An electronic limit device for an external machine of a rolling door machine comprises a box body 1, a control circuit board is connected to the box body 1 through a limit mechanism, a connecting platform 2 is arranged on the box body 1, a box cover 9 is abutted against the connecting platform 2, a rotating shaft 11 is rotatably connected to the box cover 9 through a bearing, the bearing is a thrust ball bearing, a second magnet 12 is fixedly connected to the rotating shaft 11, a first magnet 10 is fixedly connected to the box body 1, and the opposite surfaces of the first magnet 10 and the second magnet 12 are opposite magnetic surfaces, and the first magnet 10 is blocked in front of the second magnet 12 by using the first magnet 10 to block the first magnet 10. The second magnet 12 is limited and cooperates with the connecting platform 2 to fix the box cover 9 horizontally and vertically, and connect the box body 1 and the box cover 1. At the same time, the adsorption between the magnets is used to prevent the second magnet 12 from being separated from the rear of the first magnet 10 during use, thereby ensuring the fixing effect. When performing maintenance, the second magnet 12 can be driven to rotate by rotating the rotating shaft 11, thereby releasing the limit of the first magnet 10 on the second magnet 12, and the box cover 9 can be disassembled for maintenance of the internal control circuit board.

[0018] The limiting mechanism includes a limiting column 3, a plurality of limiting columns 3 are fixedly connected to the inner wall of the box body 1, a plurality of limiting holes are opened on the control circuit board, and the plurality of limiting columns 3 can be respectively inserted into the limiting holes, and a plurality of abutting edges 4 are fixedly connected to the box cover 9, and the plurality of abutting edges 4 are respectively abutted with the control circuit board. The control circuit board is limited by adopting the abutting edges 4, the limiting columns 3 and the limiting holes, thereby preventing the control circuit board from moving.

[0019] The control circuit board includes a circuit board 13, on which a microprocessor 5, a control circuit 6, a revolution counter 7 and a transmitter 8 are arranged. The microprocessor 5 is signal-connected with the control circuit 6, the revolution counter 7 and the transmitter 8. The revolution counter 7 is a rotary encoder. A button is arranged on the box cover 9, and the button is electrically connected with the transmitter 8. The button includes an up button, a down button, a stop button, a start button and the like. When a button is pressed, the transmitter 8 sends a signal, and the microprocessor 5 controls the control state of the motor of the rolling door machine.

[0020] The revolution counter 7 counts the number of revolutions of the rolling door, and the number of revolutions of the rotating rod of the revolution counter 7 is the lifting stroke of the rolling door. The number of revolutions of the revolution counter 7 is controlled by the microprocessor 5, so that the lifting or lowering stroke of the rolling door can be accurately controlled, and the stopping position of the rolling door can also be controlled; and when the rolling door rises or falls to the same height, the revolution counter 7 rotates the same number of times, so the starting position during setting is the returning stopping position.

[0021] During maintenance, the second magnet 12 can be driven to rotate by rotating the rotating shaft 11, thereby releasing the position restriction of the first magnet 10 on the second magnet 12, and the box cover 9 can be taken down to maintain the control circuit board.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electronic limit device for a roller shutter door machine external machine, comprising a box body (1), characterized in that: A control circuit board is connected to the box body (1) via a limiting mechanism; a connecting platform (2) is provided on the box body (1); the connecting platform (2) abuts against a box cover (9); a rotating shaft (11) is rotatably connected to the box cover (9) via a bearing; a second magnet (12) is fixedly connected to the rotating shaft (11); a first magnet (10) is fixedly connected to the box body (1); opposite surfaces of the first magnet (10) and the second magnet (12) are opposite magnetic surfaces; the first magnet (10) limits the second magnet (12).

2. The electronic limit device for the roller shutter machine external machine according to claim 1, characterized in that: The limiting mechanism comprises a limiting column (3), a plurality of limiting columns (3) are fixedly connected to the inner wall of the box body (1), a plurality of limiting holes are provided on the control circuit board, and the plurality of limiting columns (3) can be respectively inserted into the limiting holes.

3. The electronic limit device for the roller shutter machine external machine according to claim 2, characterized in that: A plurality of abutment edges (4) are fixedly connected to the box cover (9), and the plurality of abutment edges (4) abut against the control circuit board respectively.

4. An electronic limit device for a rolling door machine external machine according to any one of claims 1 to 3, characterized in that: The control circuit board comprises a circuit board (13), on which a microprocessor (5), a control circuit (6), a revolution counter (7) and a transmitter (8) are arranged, and the microprocessor (5) is signal-connected with the control circuit (6), the revolution counter (7) and the transmitter (8).

5. The electronic limit device for the roller shutter machine external machine according to claim 4, characterized in that: The revolution counter (7) is a rotary encoder.

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