Fireproof rolling shutter door with limiting and self-locking functions

Abstract

The fireproof rolling shutter door with the limiting and self-locking functions comprises a self-locking assembly, and the self-locking assembly comprises a rolling shutter box, a limiting door frame, a limiting groove, a shutter bottom plate, a limiting frame, a rotating shaft, a micro motor, a gear and a controller. After the position sensor senses that the door curtain is completely closed, the micro motor is automatically started to drive the insertion rod to be inserted into the limiting frame to limit the door curtain, so that the automatic locking function of the door curtain after the door curtain is closed in place is achieved, and the situation that the door curtain is accidentally opened due to external force or mechanical faults is effectively prevented; therefore, the fireproof effect is improved; the controller controls the micro motor and the gear motor, so that the automatic opening, closing and self-locking functions of the door curtain are achieved, meanwhile, the controller can further receive signals from components such as the smoke sensor, the position sensor and the pressure sensor, intelligent judgment and corresponding operation are conducted according to the signals, and the door curtain is controlled to be opened and closed. And the fireproof rolling shutter door has higher automation and intelligence levels.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof rolling shutter doors, in particular to a fireproof rolling shutter door with a position limiting and self-locking function. Background Art

[0002] Fire shutter doors are fireproof and heat-insulating facilities suitable for larger openings in buildings, mainly used to prevent the spread of fire. Its working principle is: when a fire occurs, the fire shutter door will automatically start and quickly drop to isolate the fire scene and prevent the fire from spreading. At the same time, its material has good heat insulation and flame retardant properties, which can effectively isolate high temperatures and block the spread of flames and smoke. Fire shutter doors are widely used in crowded or critical areas such as commercial buildings, industrial plants, hospitals, campuses, and public transportation facilities. In these places, fire shutter doors can quickly isolate the fire source when a fire occurs, ensure the safety of personnel, and reduce the losses caused by the fire.

[0003] At present, most of the fireproof rolling shutter doors on the market only have basic fireproof functions. The self-locking function cannot be realized after the rolling shutter doors are closed. In emergency situations such as fire, this may cause the rolling shutter doors to be unable to remain in a closed state stably, thereby affecting their fireproofing effect. Therefore, a fireproof rolling shutter door with a limited self-locking function is proposed. Utility Model Content

[0004] In view of this, the embodiment of the utility model hopes to provide a fireproof rolling shutter door with a limited self-locking function to solve or alleviate the technical problems existing in the prior art, that is, the problem that the rolling shutter door cannot realize the self-locking function after closing in the traditional technology, which affects its fire prevention effect, and at least provides a beneficial option for this;

[0005] The technical solution of the utility model embodiment is achieved as follows:

[0006] A fireproof rolling shutter door with a limit self-locking function comprises a self-locking component, wherein the self-locking component comprises a rolling shutter box, a limit door frame, a limit groove, a curtain bottom plate, a limit frame, a rotating shaft, a micro motor, a gear, a sliding hole, a plug rod, a toothed plate and a controller, the limit door frames are welded to the rear parts of both sides of the lower surface of the rolling shutter box, the limit door frames are arranged in the middle parts of the adjacent sides of the two limit door frames, the inner side walls of the two limit grooves are slidably connected with the curtain bottom plate, the limit frames are welded to the middle parts of both sides of the rear surface of the curtain bottom plate, the lower parts of the front surfaces of the two limit door frames are penetrated by the rotating shaft, and the outer side of the lower part of the front surface of the limit door frame close to the rotating shaft is fixed A micro motor is fixedly connected to the shaft, the front surface of the rotating shaft is fixedly connected to the output end of the micro motor, a gear is fixedly connected to the rear part of the outer wall of the rotating shaft, a sliding hole is provided at the lower part of the adjacent side of the two limiting door frames near the rear part of the limiting groove, the inner wall of the sliding hole is slidably connected with a plug rod, the upper surface of the plug rod is provided with a toothed plate, the outer wall of the gear is meshingly connected to the upper surface of the toothed plate, the adjacent side of the outer walls of the two plug rods is respectively slidably connected to the inner walls of the two limiting frames, a controller is fixedly connected to the middle part of the front surface of the curtain bottom plate, and the input end of the micro motor is electrically connected to the output end of the controller.

[0007] In one embodiment: a first mounting groove is provided at the lower part of the inner side walls of the two limit grooves which are away from each other, a position sensor is installed on the inner side wall of the first mounting groove, a second mounting groove is provided in the middle part of both sides of the curtain bottom plate, a sensor sheet is fixedly connected to the inner side wall of the second mounting groove, and the output end of the position sensor is electrically connected to the input end of the controller.

[0008] In one embodiment: a reel passes through the center of one side of the rolling shutter box, a plurality of winding rings are fixedly connected to the outer wall of the reel, a door curtain is fixedly connected to the outer walls of the plurality of winding rings, and the bottom of the door curtain is fixedly connected to the top of the curtain bottom plate.

[0009] In one embodiment, a reduction motor is fixedly connected to the outer side of one side of the rolling shutter box near the reel, one end of the reel is fixedly connected to the output end of the reduction motor, and the input end of the reduction motor is electrically connected to the output end of the controller.

[0010] In one embodiment, a guide groove is provided at the rear portion of the lower surface of the rolling shutter box near the two limiting door frames, and the outer side wall of the door curtain is slidably connected to the inner side wall of the guide groove.

[0011] In one embodiment, a smoke sensor is installed in the middle of the front surface of the rolling shutter box, and the output end of the smoke sensor is electrically connected to the input end of the controller.

[0012] In one embodiment, a power supply box is fixedly connected to the front of the rolling shutter box near the reduction motor, and a backup power supply is arranged inside the power supply box.

[0013] In one embodiment, a pressure sensor is installed at the center of the upper surface of the limit frame, the top of the pressure sensor is attached to the rear of the lower surface of the rolling shutter box near the guide groove, and the output end of the pressure sensor is electrically connected to the input end of the controller.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. After the position sensor senses that the door curtain is completely closed, the utility model automatically starts the micro motor to drive the insertion rod to insert into the limit frame to limit the door curtain, thereby realizing the automatic locking function of the door curtain after it is closed, thereby effectively preventing the door curtain from being accidentally opened due to external force or mechanical failure, thereby improving the fire prevention effect.

[0016] 2. The utility model realizes the automatic opening and closing and self-locking functions of the door curtain by controlling the micro motor and the reduction motor through the controller. At the same time, the controller can also receive signals from components such as smoke sensors, position sensors and pressure sensors, and make intelligent judgments and corresponding operations based on these signals, so that the fireproof rolling shutter door has a higher level of automation and intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the self-locking component of the utility model;

[0020] Figure 3 For the utility model Figure 2 Another perspective structural diagram of;

[0021] Figure 4 It is a schematic diagram of the cutaway structure of the rolling shutter box and the scroll of the utility model.

[0022] Figure numerals: 1. Self-locking component; 11. Rolling shutter box; 12. Limit door frame; 13. Limit groove; 14. Curtain bottom plate; 15. Limit frame; 16. Rotating shaft; 17. Micro motor; 18. Gear; 19. Sliding hole; 20. Insert rod; 21. Tooth plate; 22. Controller; 23. First mounting groove; 24. Position sensor; 25. Second mounting groove; 26. Induction sheet; 27. Reel; 28. Winding ring; 29. ​​Door curtain; 30. Reduction motor; 31. Guide groove; 32. Smoke sensor; 33. Power box; 34. Backup power supply; 35. Pressure sensor. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed below;

[0024] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the quantity of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities;

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature; at the same time, all axial descriptions, such as the X-axis, Y-axis, Z-axis, one end of the X-axis, the other end of the Y-axis or the other end of the Z-axis, etc., are based on a Cartesian coordinate system.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation" and the like should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection, a direct connection, welding, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the description and drawings combined with specific circumstances.

[0027] See also Figure 1-4 This specific implementation will provide a fireproof rolling shutter door with a limited self-locking function.

[0028] In the present scheme, a fireproof rolling shutter door with a limit self-locking function comprises a self-locking component 1, which comprises a rolling shutter box 11, a limit door frame 12, a limit groove 13, a curtain bottom plate 14, a limit frame 15, a rotating shaft 16, a micro motor 17, a gear 18, a sliding hole 19, a plug rod 20, a tooth plate 21 and a controller 22. The limit door frames 12 are welded to the rear parts of both sides of the lower surface of the rolling shutter box 11, and the middle parts of the adjacent sides of the two limit door frames 12 are provided with limit grooves 13. The inner side walls of the two limit grooves 13 are slidably connected with the curtain bottom plate 14, and the middle parts of both sides of the rear surface of the curtain bottom plate 14 are welded with limit frames 15. The lower parts of the front surfaces of the two limit door frames 12 are penetrated by the rotating shaft 16, and the lower parts of the front surfaces of the limit door frames 12 are fixedly connected with the micro motor 17 near the outer side of the rotating shaft 16, and the front surface of the rotating shaft 16 is fixedly connected to the micro motor 17. At the output end, a gear 18 is fixedly connected to the rear portion of the outer wall of the rotating shaft 16, and a sliding hole 19 is provided at the lower portion of the adjacent side of the two limiting door frames 12 near the rear portion of the limiting groove 13, and a plug rod 20 is slidably connected to the inner wall of the sliding hole 19, and a toothed plate 21 is provided on the upper surface of the plug rod 20, and the outer wall of the gear 18 is meshed and connected to the upper surface of the toothed plate 21, and the adjacent sides of the outer walls of the two plug rods 20 are respectively slidably connected to the inner walls of the two limiting frames 15, and a controller 22 is fixedly connected to the middle portion of the front surface of the curtain bottom plate 14, and the input end of the micro motor 17 is electrically connected to the output end of the controller 22, and the plug rod 20 slides inside the sliding hole 19 to limit the plug rod 20, and one end of the plug rod 20 is inserted into the limiting frame 15 on the curtain bottom plate 14 to limit the limiting frame 15, thereby limiting the curtain bottom plate 14.

[0029] Specifically: a first mounting groove 23 is provided at the lower part of the inner side walls of the two limit grooves 13 which are away from each other, a position sensor 24 is installed on the inner side wall of the first mounting groove 23, a second mounting groove 25 is provided in the middle part of both sides of the curtain bottom plate 14, a sensing plate 26 is fixedly connected to the inner side wall of the second mounting groove 25, the output end of the position sensor 24 is electrically connected to the input end of the controller 22, and after the position sensor 24 senses the position of the sensing plate 26, a signal is sent to the controller 22.

[0030] Specifically: a reel 27 passes through the center of one side of the rolling shutter box 11, and a plurality of winding rings 28 are fixedly connected to the outer wall of the reel 27, and a door curtain 29 is fixedly connected to the outer wall of the plurality of winding rings 28, and the bottom of the door curtain 29 is fixedly connected to the top of the curtain bottom plate 14, and the winding ring 28 is driven to rotate by the reel 27, thereby facilitating the retraction and release of the door curtain 29.

[0031] Specifically: A reduction motor 30 is fixedly connected to the outer side of the roller shaft 27 on one side of the rolling shutter box 11, one end of the roller shaft 27 is fixedly connected to the output end of the reduction motor 30, and the input end of the reduction motor 30 is electrically connected to the output end of the controller 22. The reduction motor 30 is used to drive the roller shaft 27 to rotate, and the controller 22 is used to control the opening and closing of the reduction motor 30.

[0032] Specifically: a guide groove 31 is opened at the rear of the lower surface of the rolling box 11 near the two limiting door frames 12, and the outer wall of the door curtain 29 is slidably connected to the inner wall of the guide groove 31, and the door curtain 29 slides inside the guide groove 31, thereby limiting the door curtain 29.

[0033] Specifically: a smoke sensor 32 is installed in the middle of the front surface of the rolling shutter box 11 , and the output end of the smoke sensor 32 is electrically connected to the input end of the controller 22 . When the smoke sensor 32 detects smoke, the signal is sent to the controller 22 .

[0034] Specifically: A power box 33 is fixedly connected to the front of the rolling shutter box 11 near the reduction motor 30. A backup power supply 34 is arranged inside the power box 33. The backup power supply 34 automatically supplies power when the main power supply is interrupted, thereby ensuring the normal operation of the fireproof rolling shutter door.

[0035] Specifically: a pressure sensor 35 is installed at the center of the upper surface of the limit frame 15, the top of the pressure sensor 35 is closely connected to the lower surface of the rolling shutter box 11 near the rear of the guide groove 31, the output end of the pressure sensor 35 is electrically connected to the input end of the controller 22, and the pressure sensor 35 is triggered to send a signal to the controller 22 through the contact between the pressure sensor 35 and the rolling shutter box 11.

[0036] The working process of the fireproof rolling shutter door with limit self-locking function in this embodiment is as follows: in an emergency such as a fire, the smoke sensor 32 detects the smoke and sends a signal to the controller 22. After receiving the signal, the controller 22 immediately starts the reduction motor 30 to drive the reel 27 to rotate, so that the reel 27 drives the winding ring 28 to rotate, and the door curtain 29 wrapped around the winding ring 28 is unfolded and slides down along the guide groove 31. As the door curtain 29 descends, the curtain bottom plate 14 also descends. When the curtain bottom plate 14 descends to a predetermined position, the position sensor 24 senses the position of the sensor plate 26, so that the position sensor 24 sends a signal to the controller 22. After receiving the signal, the controller 22 stops the reduction motor 30. At the same time, the controller 22 starts the micro motor 17 to drive the rotating shaft 16 to rotate, thereby driving the gear 18 to rotate. Since the toothed plate 21 on the plug rod 20 is meshed and connected with the gear 18, The tooth plate 21 and the insertion rod 20 are driven to slide along the sliding hole 19 and inserted into the limit frame 15 on the curtain bottom plate 14, thereby limiting the curtain bottom plate 14 and then limiting the door curtain 29 to achieve a self-locking function to prevent the door curtain 29 from being accidentally opened. At the same time, the backup power supply 34 will automatically supply power when the main power supply is interrupted, thereby ensuring the normal operation of the fireproof rolling shutter door. When the fireproof rolling shutter door needs to be opened, the opening signal is transmitted to the controller 22 through the remote control. After the controller 22 receives the opening signal, it first starts the micro motor 17 to reverse, so that the insertion rod 20 slides out of the limit frame 15 and returns to the sliding hole 19, and then starts the reduction motor 30 to reverse, and the reel 27 rolls up the door curtain 29 through the winding ring 28, and the curtain bottom plate 14 rises accordingly. When the pressure sensor 35 and the rolling shutter box 11 conflict, the pressure sensor 35 sends a signal to the controller 22, and the controller 22 automatically turns off the reduction motor 30.

[0037] The above-mentioned embodiments only express the implementation methods of the relevant practical applications of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fireproof rolling shutter door with position limiting and self-locking function, characterized in that: The invention comprises a self-locking component (1), wherein the self-locking component (1) comprises a rolling shutter box (11), a limiting door frame (12), a limiting groove (13), a curtain bottom plate (14), a limiting frame (15), a rotating shaft (16), a micro motor (17), a gear (18), a sliding hole (19), an insertion rod (20), a toothed plate (21) and a controller (22); the limiting door frames (12) are welded to the rear parts of both sides of the lower surface of the rolling shutter box (11); the limiting grooves (13) are arranged in the middle parts of the adjacent sides of the two limiting door frames (12); the inner side walls of the two limiting grooves (13) are slidably connected with the curtain bottom plate (14); the limiting frames (15) are welded to the middle parts of both sides of the rear surface of the curtain bottom plate (14); the rotating shafts (16) are penetrated through the lower parts of the front surfaces of the two limiting door frames (12); the outer part of the lower parts of the front surfaces of the limiting door frames (12) close to the rotating shafts (16) is A micro motor (17) is fixedly connected to the side, the front surface of the rotating shaft (16) is fixedly connected to the output end of the micro motor (17), the rear part of the outer wall of the rotating shaft (16) is fixedly connected to a gear (18), a sliding hole (19) is provided at the lower part of the adjacent side of the two limiting door frames (12) near the rear part of the limiting groove (13), the inner wall of the sliding hole (19) is slidably connected to an insertion rod (20), the upper surface of the insertion rod (20) is provided with a tooth plate (21), the outer wall of the gear (18) is meshingly connected to the upper surface of the tooth plate (21), the adjacent side of the outer walls of the two insertion rods (20) are respectively slidably connected to the inner walls of the two limiting frames (15), the middle part of the front surface of the curtain bottom plate (14) is fixedly connected to a controller (22), and the input end of the micro motor (17) is electrically connected to the output end of the controller (22).

2. The fireproof rolling shutter door with position limiting and self-locking function according to claim 1 is characterized in that: A first mounting groove (23) is provided at the lower part of the inner side walls of the two limit grooves (13) which are away from each other, and a position sensor (24) is installed on the inner side wall of the first mounting groove (23). A second mounting groove (25) is provided in the middle of both sides of the curtain bottom plate (14), and a sensing sheet (26) is fixedly connected to the inner side wall of the second mounting groove (25). The output end of the position sensor (24) is electrically connected to the input end of the controller (22).

3. The fireproof rolling shutter door with position limiting and self-locking function according to claim 1 is characterized in that: A reel (27) passes through the center of one side of the rolling shutter box (11); a plurality of winding rings (28) are fixedly connected to the outer wall of the reel (27); a door curtain (29) is fixedly connected to the outer walls of the plurality of winding rings (28); and the bottom of the door curtain (29) is fixedly connected to the top of the curtain bottom plate (14).

4. The fireproof rolling shutter door with position limiting and self-locking function according to claim 3 is characterized in that: A reduction motor (30) is fixedly connected to one side of the rolling shutter box (11) near the outer side of the reel (27), one end of the reel (27) is fixedly connected to the output end of the reduction motor (30), and the input end of the reduction motor (30) is electrically connected to the output end of the controller (22).

5. The fireproof rolling shutter door with position limiting and self-locking function according to claim 3 is characterized in that: A guide groove (31) is provided at the rear portion of the lower surface of the rolling shutter box (11) near the two limiting door frames (12), and the outer side wall of the door curtain (29) is slidably connected to the inner side wall of the guide groove (31).

6. The fireproof rolling shutter door with position limiting and self-locking function according to claim 1 is characterized in that: A smoke sensor (32) is installed in the middle of the front surface of the rolling shutter box (11), and the output end of the smoke sensor (32) is electrically connected to the input end of the controller (22).

7. The fireproof rolling shutter door with position limiting and self-locking function according to claim 4 is characterized in that: A power supply box (33) is fixedly connected to the front portion of one side of the rolling shutter box (11) close to the reduction motor (30), and a backup power supply (34) is arranged inside the power supply box (33).

8. The fireproof rolling shutter door with position limiting and self-locking function according to claim 5 is characterized in that: A pressure sensor (35) is installed at the center of the upper surface of the limit frame (15), the top of the pressure sensor (35) is closely connected to the rear of the lower surface of the rolling shutter box (11) near the guide groove (31), and the output end of the pressure sensor (35) is electrically connected to the input end of the controller (22).

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