Roller shutter door with fireproof function

Abstract

The utility model relates to the technical field of fireproof roller shutter doors, in particular to a roller shutter door with a fireproof function, which comprises a door frame and a roller shutter, the door frame is fixedly connected with a sliding chute and a balancing weight, the balancing weight is fixedly connected with the roller shutter, the sliding chute is fixedly connected with a spring plate with a limiting head, the limiting head is matched with a smooth gear, and the sliding chute is fixedly connected with the spring plate. The smooth gear is fixedly connected with the embedded rotating motor, the balancing weight is fixedly connected with the traction rope, the traction rope is fixed to the grooved wheel, the grooved wheel is fixed to one end of the reel, the grooved wheel is fixedly connected with the driven synchronous wheel, and the driven synchronous wheel is matched with the driving synchronous wheel through a synchronous belt. The driving synchronizing wheel is fixed on the motor; when a fire disaster occurs, power supply is normal, the roller shutter door can be actively closed, the roller shutter door can also be rapidly closed by manually rotating the wheel disc during power failure, the roller shutter door can be passively closed after the limiting head is melted due to high temperature, and the roller shutter door can be completely closed by adopting the balancing weight instead of spring tension for rebounding.

Description

Technical Field

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

[0002] Fireproof rolling shutter doors are widely used in fire-proof partition areas of industrial and civil buildings. They can effectively prevent the spread of fire and protect the safety of life and property. They are indispensable fire protection facilities in modern buildings. They are generally made of metal plates such as steel plates, and are composed of buckles or hinges. They are usually rolled up in the pivot box at the top of doors and windows. When a fire occurs, they are lowered and unfolded to prevent the fire from spreading from the door and window openings.

[0003] According to the fireproof rolling shutter door with the announcement number: CN219548750U, it includes a winding roller, one end of the outer wall of the winding roller is fixedly connected to a groove wheel, a fireproof rolling shutter is wound on the outer wall of the winding roller, a door frame is rotatably connected to the outer wall of the winding roller, a closing mechanism and a limiting mechanism are fixedly provided on one outer wall of the door frame, a driving mechanism is fixedly provided on one side of the door frame, and a threshold is fixedly connected to the bottom surface of the door frame. When using the fireproof rolling shutter door, by setting the closing mechanism, it is ensured that when there is a power outage caused by a fire, the fireproof rolling shutter can be driven downward by the closing mechanism to expand, thereby isolating the fire and preventing the fire from spreading. By setting the limiting mechanism, the purpose of limiting the closing mechanism is achieved, so that when there is no fire, the closing mechanism cannot drive the fireproof rolling shutter to move downward and expand due to the limiting action of the limiting mechanism, thereby ensuring the smooth passage.

[0004] When the fireproof rolling shutter door is in use, when a fire occurs, because the clamping ring of the limit mechanism needs high temperature to melt, if there is no normal power supply on site, the motor cannot be used to actively close the rolling shutter door. Even after the power is off, it is very troublesome to manually close the rolling shutter door. In addition, the closing mechanism uses a spring rebound. Long-term pulling of the spring may cause the spring elasticity to decrease, resulting in the rolling shutter door being unable to be completely closed, and losing the fire prevention function. In view of the shortcomings of the fireproof rolling shutter door, the utility model provides a rolling shutter door with fire prevention function, which solves the above technical problems. Utility Model Content

[0005] The utility model aims to provide a rolling shutter door with fireproof function. When a fire occurs, it can be actively closed under normal power supply conditions. When the power is off, the manual rotating wheel can also be quickly closed. When the temperature reaches a certain height and the limit head melts, the rolling shutter door can also be passively closed. A counterweight block is used inside to replace the spring tension rebound to ensure that the rolling shutter door can be completely closed. It includes a door frame and a rolling shutter. The left side of the door frame is fixedly connected with a slide groove, and the left side of the door frame is provided with a guide groove facing the middle position of the slide groove. The upper end of the side surface of the slide groove is provided with a limit hole, the slide groove is movably connected with a counterweight block, and the side surface of the counterweight block is provided with a limit groove. A connecting plate is fixedly arranged on the back of the counterweight block, and the connecting plate passes through the guide groove and is fixedly connected to the side surface of the lower end of the rolling shutter. The upper end of the side surface of the slide groove is fixedly connected with a spring plate, and the middle of the spring plate is fixedly connected with a limit head, and the limit head passes through the limit hole and cooperates with the limit groove. One end of the spring plate cooperates with a smooth gear, and the back of the smooth gear is fixedly connected with a rotating shaft, and one end of the rotating shaft is fixedly connected with The wheel disc, the rotating shaft cooperates with the rotating hole opened at one end of the embedded rotating motor, one end of the embedded rotating motor is fixedly connected to the side of the door frame, the top surface of the counterweight block is fixedly connected to the traction rope, the other end of the traction rope is fixed on the groove wheel, the groove wheel is fixed to one end of the reel, the bottom of the door frame is fixedly connected with a threshold, the top surface of the threshold is provided with a water trough, the inner edge position of the door frame is fixedly connected with a sealing plate, the upper left end of the door frame is provided with a rotating shaft hole, one end of the reel passes through the rotating shaft hole, one end of the groove wheel is fixedly connected with a passive synchronous wheel, the passive synchronous wheel and the active synchronous wheel are matched with a synchronous belt, the active synchronous wheel is fixed to the motor, the motor is fixed on the second shell, the left side of the door frame is fixedly connected with the first shell, the upper end of one side of the shell is provided with a synchronous belt hole, the side of the door frame is fixedly connected with the third shell, the side of the third shell is provided with an ignition port, the top surface of the door frame is fixedly connected with the second shell, one end of the roller shutter is fixedly connected to the reel, and a warning light is fixedly connected to the middle of the front of the second shell.

[0006] Preferably, the inner dimension of the slide groove is consistent with that of the counterweight block, and the side surface is flush with the door frame.

[0007] Preferably, the guide groove is located opposite to the side of the rolling curtain, and the lower end of the guide groove is flush with the bottom end of the water tank.

[0008] Preferably, the inner side of the sealing plate is in contact with the rolling curtain.

[0009] Preferably, the length of the traction rope is greater than the height of the door frame.

[0010] Preferably, the depth of the concave surface of the smooth gear is not less than the radius of one end of the limiting head.

[0011] Preferably, the ignition port is directly opposite to the limit head.

[0012] Preferably, the active synchronous wheel and the passive synchronous wheel are in the same plane.

[0013] Preferably, one end of the limit head is made of plastic material that is not resistant to high temperatures.

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

[0015] 1. The utility model adopts a counterweight block instead of spring tension rebound to ensure that the rolling door can be completely closed at any time under the drive of the gravity of the counterweight block, effectively isolating the fire source.

[0016] 2. When a fire occurs, the utility model can actively close the rolling shutter under normal power supply conditions. When the power is off, the manual rotation of the wheel can also quickly close the shutter. When the temperature reaches a certain height and the limit head melts, the rolling shutter door can also be passively closed. Multiple guarantees can be provided that the rolling shutter can be quickly closed in case of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the closed structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the door frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the counterweight block of the utility model.

[0022] In the figure: 1. door frame; 2. roller shutter; 3. reel; 4. passive synchronous wheel; 5. groove wheel; 6. active synchronous wheel; 7. synchronous belt; 8. traction rope; 9. counterweight; 10. limit head; 11. spring plate; 12. embedded rotating motor; 13. rotating hole; 14. smooth gear; 15. rotating shaft; 16. wheel disc; 17. sealing plate; 18. rotating shaft hole; 19. guide groove; 20. water tank; 21. motor; 22. synchronous belt hole; 23. shell three; 24. ignition port; 25. shell one; 26. shell two; 27. warning light; 28. limit groove; 29. ​​connecting plate; 30. slide groove; 31. limit hole; 32. door sill. DETAILED DESCRIPTION

[0023] 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.

[0024] When using the fireproof rolling shutter door with announcement number: CN219548750U, when a fire occurs, because the clamp ring of the limit mechanism needs high temperature to melt, if the power supply on site is normal, the motor cannot be used to actively close the rolling shutter door. Even after the power is off, it is very troublesome to manually close the rolling shutter door. In addition, the spring rebound is used inside the closing mechanism. Long-term pulling of the spring may cause the spring elasticity to decrease, resulting in the rolling shutter door being unable to be completely closed, and losing the fire prevention function. In order to solve these problems, a rolling shutter door with fire prevention function is designed. Please refer to Figure 1-Figure 5The figure shows a rolling shutter door with fireproof function of the utility model, including a door frame and a rolling shutter, wherein a slide groove is fixedly connected to the left side of the door frame, a guide groove is provided on the left side of the door frame directly opposite to the middle position of the slide groove, a limiting hole is provided on the upper end of the side surface of the slide groove, a counterweight block is movably connected to the slide groove, a limiting groove is provided on the side surface of the counterweight block, a connecting plate is fixedly arranged on the back of the counterweight block, the connecting plate passes through the guide groove and is fixedly connected to the lower end side surface of the rolling shutter, a spring plate is fixedly connected to the upper end of the side surface of the slide groove, and a limiting head is fixedly connected in the middle of the spring plate, The limit head passes through the limit hole and cooperates with the limit groove, one end of the spring plate cooperates with the smooth gear, the back of the smooth gear is fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a wheel, the rotating shaft cooperates with a rotating hole opened at one end of the embedded rotating motor, one end of the embedded rotating motor is fixedly connected to the side of the door frame, the top surface of the counterweight block is fixedly connected to the traction rope, the other end of the traction rope is fixed on the groove wheel, the groove wheel is fixed at one end of the reel, the bottom of the door frame is fixedly connected with a threshold, and the top surface of the threshold is opened with a water The groove is fixedly connected with a sealing plate at the inner edge of the door frame, a rotating shaft hole is opened at the upper left end of the door frame, one end of the reel passes through the rotating shaft hole, one end of the groove wheel is fixedly connected with a passive synchronous wheel, the passive synchronous wheel and the active synchronous wheel use a synchronous belt to cooperate, the active synchronous wheel is fixed on the motor, the motor is fixed on the shell two, the left side of the door frame is fixedly connected with the shell one, the upper end of one side of the shell is opened with a synchronous belt hole, the side of the door frame is fixedly connected with the shell three, the side of the shell three is opened with an ignition port, the top of the door frame The surface is fixedly connected with shell 2, one end of the rolling shutter is fixedly connected to the reel, and a warning light is fixedly connected to the middle of the front side of the shell 2. The utility model adopts a counterweight block instead of a spring tension rebound to ensure that the rolling shutter door can be completely closed at any time under the drive of the gravity of the counterweight block, effectively isolating the fire source, and in the event of a fire, the rolling shutter can be actively closed under normal power supply conditions, and in the event of a power outage, the manual rotation of the wheel can also quickly close it, and when the temperature reaches a certain height to melt the limit head, the rolling shutter door can also be passively closed, providing multiple guarantees that the rolling shutter can be quickly closed in the event of a fire.

[0025] The inner dimension of the slide groove is consistent with that of the counterweight block, and the side surface is flush with the door frame, so as to ensure that the counterweight block does not deviate when falling.

[0026] The guide groove is located opposite to the side of the rolling curtain, and the lower end of the guide groove is flush with the bottom end of the water tank, so that the rolling curtain can be completely closed when the counterweight block drives it to fall.

[0027] The inner side of the sealing plate is fitted with the rolling curtain, so that there is no gap between the rolling curtain and the door frame, thereby isolating smoke during fire.

[0028] The length of the traction rope should be greater than the height of the door frame to ensure that the counterweight can fall completely.

[0029] The depth of the concave surface of the smooth gear is not less than the radius of one end of the limiting head, so as to ensure that the limiting head can be completely ejected from the limiting groove.

[0030] The ignition port is directly opposite to the limit head, ensuring that high temperature can quickly melt the limit head during a fire.

[0031] The active synchronous wheel and the passive synchronous wheel are in the same plane, so that the synchronous belt can be installed in place.

[0032] One end of the limit head is made of plastic material that is not resistant to high temperatures, so that the one end of the limit head can melt during a fire.

[0033] The working principle of the utility model is as follows: when there is no fire, the motor drives the active synchronous wheel to rotate, the active synchronous wheel drives the passive synchronous wheel to rotate, and the passive synchronous wheel drives the reel and the groove wheel to rotate so that the rolling curtain and the traction rope are respectively wound on the reel and the groove wheel. When the traction rope drives the counterweight to reach the limit, the embedded rotating motor rotates to make the smooth gear convex surface push the limit head with the spring plate out, so that the other end of the limit head is inserted into the limit groove to ensure smooth passage. When a fire occurs, under the condition of normal power supply, the embedded rotating motor rotates to make the concave surface of the smooth gear face the limit head, so that the spring plate drives the limit head to rebound from the limit groove, so that the counterweight falls, and the counterweight falls with the rolling curtain. If the power is cut off on site, the smooth gear concave surface can also be made to face the limit head by rotating the wheel disk manually. When the power is cut off on site and there is no personnel, the high temperature will heat one end of the limit head through the ignition hole to melt it, so that the spring plate rebounds from the limit groove with the remaining limit head, so that the counterweight falls with the rolling curtain.

[0034] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A rolling shutter door with fireproof function, comprising a door frame (1) and a rolling shutter (2), characterized in that: The left side of the door frame (1) is fixedly connected with a slide groove (30), the left side of the door frame (1) is provided with a guide groove (19) at a middle position opposite to the slide groove (30), the upper end of the side of the slide groove (30) is provided with a limiting hole (31), the slide groove (30) is movably connected with a counterweight block (9), the side of the counterweight block (9) is provided with a limiting groove (28), the back of the counterweight block (9) is fixedly provided with a connecting plate (29), the connecting plate (29) passes through the guide groove (19) and is fixedly connected to the lower end side of the rolling curtain (2), the upper end of the side of the slide groove (30) is fixedly connected with a spring plate (11), the middle of the spring plate (11) is fixedly connected with a limiting head (10), the The limit head (10) passes through the limit hole (31) and cooperates with the limit groove (28); one end of the spring plate (11) cooperates with the smooth gear (14); the back of the smooth gear (14) is fixedly connected with a rotating shaft (15); one end of the rotating shaft (15) is fixedly connected with a wheel (16); the rotating shaft (15) cooperates with a rotating hole (13) opened at one end of the embedded rotating motor (12); one end of the embedded rotating motor (12) is fixedly connected to the side of the door frame (1); the top surface of the counterweight (9) is fixedly connected to the traction rope (8); the other end of the traction rope (8) is fixed on the groove wheel (5); and the groove wheel (5) is fixed to one end of the reel (3).

2. The rolling shutter door with fireproof function according to claim 1, characterized in that: A threshold (32) is fixedly connected to the bottom of the door frame (1), a water trough (20) is provided on the top surface of the threshold (32), and a sealing plate (17) is fixedly connected to the inner edge of the door frame (1).

3. The rolling shutter door with fireproof function according to claim 1, characterized in that: A rotating shaft hole (18) is provided at the upper left end of the door frame (1), one end of the reel (3) passes through the rotating shaft hole (18), one end of the groove wheel (5) is fixedly connected to a passive synchronous wheel (4), the passive synchronous wheel (4) and the active synchronous wheel (6) are matched using a synchronous belt (7), the active synchronous wheel (6) is fixed on a motor (21), and the motor (21) is fixed on a second housing (26).

4. The rolling shutter door with fireproof function according to claim 1, characterized in that: The left side of the door frame (1) is fixedly connected to a shell one (25), the upper end of the side of the shell one (25) is provided with a synchronous belt hole (22), the side of the door frame (1) is fixedly connected to a shell three (23), the side of the shell three (23) is provided with an ignition port (24), and the top surface of the door frame (1) is fixedly connected to a shell two (26).

5. The rolling shutter door with fireproof function according to claim 3, characterized in that: One end of the rolling curtain (2) is fixedly connected to the rolling shaft (3).

6. The rolling shutter door with fireproof function according to claim 4, characterized in that: A warning light (27) is fixedly connected to the middle of the front side of the second housing (26).

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