Fireproof electric door closer

Abstract

The utility model discloses a fireproof electric door closer which comprises a door frame, one side of the interior of the door frame is rotationally connected with a door body, one side of the door frame is symmetrically and fixedly connected with mounting frames, a rotating rod is rotationally connected between one sides of the interiors of the two mounting frames, and the outer side of the rotating rod is symmetrically and fixedly connected with fixing frames. The device comprises two fixed frames, the right ends of one sides of the two fixed frames are fixedly connected with first motors, the output ends of the first motors are fixedly connected with threaded rods, the outer sides of the threaded rods are in threaded connection with movable rods, and one sides of the movable rods are fixedly connected with fireproof plates. The fixing frame is fixedly connected to one side of the door body and can drive the door body to rotate, automatic closing can be achieved only through remote operation, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric door closers, and in particular relates to a fireproof electric door closer. Background Art

[0002] A fire door is a door specially designed to block flames and smoke to protect certain parts of a building from fire. They are usually installed in key locations in a building, such as corridors, stairwells and elevator lobbies to ensure that people have enough time to escape in an emergency. Fire doors are divided into different grades according to their fire resistance time and fire performance.

[0003] Existing fireproof electric door closers generally require manual operation to close, which is time-consuming and laborious. When the fire is large, it is easy to cause danger. At the same time, the door gap cannot completely block the direction of smoke, which poses a safety hazard. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fireproof electric door closer to solve the problem that the existing fireproof electric door closers proposed in the above background technology generally need to be manually operated to close, which is time-consuming and labor-intensive, and is prone to danger when the fire is large. At the same time, the door gap cannot completely block the direction of smoke, posing a safety hazard.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof electric door closer, comprising a door frame, a door body is rotatably connected to an inner side of the door frame, a mounting frame is symmetrically fixedly connected to one side of the door frame, a rotating rod is rotatably connected between the inner sides of two mounting frames, a fixed frame is symmetrically fixedly connected to the outer side of the rotating rod, a first motor is fixedly connected to the right end of one side of the two fixed frames, a threaded rod is fixedly connected to the output end of the first motor, a moving rod is threadedly connected to the outer side of the threaded rod, and a fireproof panel is fixedly connected to one side of the moving rod.

[0006] Preferably, a smoke sensor is fixedly connected to the left ends of one side of the two installation frames, and a temperature sensor is fixedly connected to the right ends of one side of the two installation frames.

[0007] Preferably, a first gear is fixedly connected to the outer upper end of the rotating rod, a second motor is fixedly connected to one side of the mounting frame, a second gear is fixedly connected to the output end of the second motor, and the first gear and the second gear are meshed with each other.

[0008] Preferably, a sliding rod is fixedly connected to the left end between the two sides inside the fixed frame, and the other end of the movable rod is slidably connected to the outer side of the sliding rod.

[0009] Preferably, one side of the fixing frame is fixedly connected to one side of the door body by screws.

[0010] Preferably, the width of the fixing frame is the same as the width of the door frame.

[0011] Preferably, the width of the fireproof board is the same as the width of the door body.

[0012] Preferably, a magnetic attraction structure is symmetrically provided on one side of the door frame, and a magnetic attraction structure is provided on one side of both of the two fireproof panels.

[0013] Compared with the prior art, the utility model provides a fireproof electric door closer, which has the following beneficial effects:

[0014] 1. The utility model sets a fixed frame and rotates the rotating rod to drive the fixed frame to rotate. The fixed frame is fixedly connected to one side of the door body and can drive the door body to rotate. It only needs remote operation to achieve automatic closing, which is convenient and quick.

[0015] 2. The utility model sets a fireproof plate and starts the first motor, which can drive the threaded rod to rotate, and can drive the protective plate to move, and can move to the door gaps at the upper and lower ends of the door body to be closed, which is convenient and quick.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a fireproof electric door closer proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a fireproof electric door closer proposed by the utility model from a top view;

[0020] Figure 3 This is a schematic diagram of the structure of the bottom of a fireproof electric door closer proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a fireproof electric door closer proposed by the utility model from a side view;

[0022] Figure 5 This is a structural schematic diagram of a cross-section of a fireproof electric door closer installation frame proposed by the utility model;

[0023] Figure 6This is a structural schematic diagram of a cross-section of a fixed frame of a fireproof electric door closer proposed by the utility model;

[0024] In the figure: 1. door frame; 2. door body; 3. mounting frame; 4. rotating rod; 5. fixed frame; 6. first motor; 7. threaded rod; 8. moving rod; 9. fireproof board; 10. smoke sensor; 11. temperature sensor; 12. first gear; 13. second motor; 14. second gear; 15. sliding rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a fireproof electric door closer, comprising a door frame 1, a door body 2 is rotatably connected to one side of the door frame 1, a mounting frame 3 is symmetrically fixedly connected to one side of the door frame 1, a rotating rod 4 is rotatably connected between one side of the two mounting frames 3, a fixed frame 5 is symmetrically fixedly connected to the outer side of the rotating rod 4, a first motor 6 is fixedly connected to the right end of one side of the two fixed frames 5, a threaded rod 7 is fixedly connected to the output end of the first motor 6, a moving rod 8 is threadedly connected to the outer side of the threaded rod 7, and a fireproof plate 9 is fixedly connected to one side of the moving rod 8. When the door needs to be closed, the rotating rod 4 can drive the fixed frame 5 to rotate, and can drive the door body 2 to rotate, so that the door can be closed or opened. Starting the first motor 6 can drive the threaded rod 7 to rotate, and can drive the moving rod 8 to move, so that the fireproof plate 9 can be moved, and can be moved to the door gaps at the upper and lower ends of the door body 2 to block the movement of smoke.

[0027] In the utility model, preferably, a smoke sensor 10 is fixedly connected to the left end of one side of the two installation frames 3, and a temperature sensor 11 is fixedly connected to the right end of one side of the two installation frames 3, so as to monitor the smoke and temperature, and then automatically close or open the door.

[0028] In the utility model, preferably, a first gear 12 is fixedly connected to the upper outer end of the rotating rod 4, a second motor 13 is fixedly connected to one side of a mounting frame 3, a second gear 14 is fixedly connected to the output end of the second motor 13, the first gear 12 and the second gear 14 are meshed with each other, and starting the second motor 13 can drive the second gear 14 to rotate, and the first gear 12 and the second gear 14 are meshed with each other, which can drive the first gear 12 to rotate, thereby driving the rotating rod 4 to rotate.

[0029] In the utility model, preferably, a sliding rod 15 is fixedly connected to the left end between the two sides inside the fixed frame 5, and the other end of the moving rod 8 is slidably connected to the outside of the sliding rod 15. The setting of the sliding rod 15 plays a role of limiting the moving rod 8.

[0030] In the present invention, preferably, one side of the fixing frame 5 is fixedly connected to one side of the door body 2 by screws, and when the fixing frame 5 rotates, the door body 2 can be driven to rotate to open or close the door.

[0031] In the present invention, preferably, the width of the fixing frame 5 is the same as the width of the door frame 1 .

[0032] In the present invention, preferably, the width of the fireproof board 9 is the same as the width of the door body 2, effectively blocking the entire door gap.

[0033] In the present invention, preferably, a magnetic attraction structure is symmetrically provided on one side of the door frame 1, and a magnetic attraction structure is provided on one side of the two fireproof panels 9, so that the fireproof panels 9 and the door frame 1 are more closely fitted, and the smoke-proof effect is better.

[0034] The working principle and use process of the utility model are as follows: when the door needs to be closed during use, the second motor 13 is started to drive the second gear 14 to rotate, and the first gear 12 and the second gear 14 are meshed with each other, which can drive the first gear 12 to rotate, thereby driving the rotating rod 4 to rotate, driving the fixed frame 5 to rotate, and driving the door body 2 to rotate, so that the door can be closed or opened, and then the first motor 6 is started to drive the threaded rod 7 to rotate, and drive the moving rod 8 to move, thereby driving the fireproof plate 9 to move, and can move to the door gaps at the upper and lower ends of the door body 2 to block the movement of smoke.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof electric door closer, comprising a door frame (1), characterized in that: The door body (2) is rotatably connected to one side of the door frame (1), a mounting frame (3) is symmetrically fixedly connected to one side of the door frame (1), a rotating rod (4) is rotatably connected between the two mounting frames (3) on one side, a fixing frame (5) is symmetrically fixedly connected to the outside of the rotating rod (4), a first motor (6) is fixedly connected to the right end of one side of the two fixing frames (5), a threaded rod (7) is fixedly connected to the output end of the first motor (6), a moving rod (8) is threadedly connected to the outside of the threaded rod (7), and a fireproof plate (9) is fixedly connected to one side of the moving rod (8).

2. A fireproof electric door closer according to claim 1, characterized in that: The left ends of one side of the two installation frames (3) are both fixedly connected with a smoke sensor (10), and the right ends of one side of the two installation frames (3) are both fixedly connected with a temperature sensor (11).

3. A fireproof electric door closer according to claim 1, characterized in that: A first gear (12) is fixedly connected to the upper outer end of the rotating rod (4), a second motor (13) is fixedly connected to one side of the mounting frame (3), a second gear (14) is fixedly connected to the output end of the second motor (13), and the first gear (12) and the second gear (14) are meshed with each other.

4. The fireproof electric door closer according to claim 1, characterized in that: A sliding rod (15) is fixedly connected to the left end between the two sides inside the fixed frame (5), and the other end of the moving rod (8) is slidably connected to the outside of the sliding rod (15).

5. The fireproof electric door closer according to claim 1, characterized in that: One side of the fixing frame (5) is fixedly connected to one side of the door body (2) via screws.

6. A fireproof electric door closer according to claim 1, characterized in that: The width of the fixing frame (5) is the same as the width of the door frame (1).

7. The fireproof electric door closer according to claim 1, characterized in that: The width of the fireproof board (9) is the same as the width of the door body (2).

8. The fireproof electric door closer according to claim 1, characterized in that: A magnetic attraction structure is symmetrically arranged on one side of the door frame (1), and a magnetic attraction structure is arranged on one side of each of the two fireproof panels (9).

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