A roller shutter door fuse structure

Abstract

This utility model provides a fuse structure for a roller shutter door, relating to the field of fireproof roller shutter technology. It includes a triggering part, a transition part, and an execution part. The triggering part includes a fusible rope and a trigger block connected to the fusible rope. The execution part includes a pop-out plate and a pop-out spring connected to the pop-out plate, with a protruding head on the pop-out plate. The transition part includes a movable plate connected to the trigger block and a toggle plate connected to the movable plate, with a blocking block on the toggle plate for connecting to the protruding head. In this roller shutter door fuse structure, when the fusible rope is triggered, the trigger block is displaced. This displacement is transmitted to the execution part through the transition part. The pop-out plate of the execution part pops out under the elastic force of the pop-out spring, providing a stable and large force to separate the brake pads from the transmission mechanism. The fireproof roller shutter closes by its own weight, the brake pad thrust is stable, and the fuse triggering reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of fireproof roller shutter technology, and in particular, it relates to a roller shutter door fuse structure. Background Technology

[0002] Fire-resistant roller shutters are fire-resistant and heat-insulating facilities suitable for large openings in buildings. The product features a concealed roller shaft design, resulting in a rational and compact structure. Based on the type of curtain panel, they are divided into ordinary and composite types. The fire-resistant roller shutter curtain is raised and lowered via a transmission device and control system, achieving fire prevention and fire isolation. The product has a flat and beautiful appearance, novel design, and high rigidity. Fire-resistant roller shutter doors are widely used in fire-resistant partitions in industrial and civil buildings, effectively preventing the spread of fire and protecting life and property. They are an indispensable fire protection facility in modern buildings.

[0003] When a fire occurs inside a building, a temperature rise is often generated, requiring fire-resistant roller shutters to automatically close when the temperature rises. This is where the roller shutter door fuse structure comes in. The temperature control release device generally uses a steel wire rope to pull the brake rod of the fire-resistant roller shutter door motor, causing the brake pads of the fire-resistant roller shutter door motor to separate from the transmission mechanism. The fire-resistant roller shutter then slides down and closes by its own weight, sealing off the building's smoke duct, preventing fire from spreading between floors, reducing the impact of the fire, and buying time for people to escape.

[0004] Existing roller shutter door fuse structures directly fix the end of a steel wire to the pull rod, and the fuse is triggered by the steel wire pulling the brake rod. This makes it impossible to adjust the sensing accuracy. Moreover, as fireproof roller shutters become larger, the fuse pulling force at the fireproof roller shutter needs to be greater. The pulling force of the steel wire can only be provided by the deformation of the heat-deformable material after reaching the predetermined temperature, resulting in unstable pulling force and unreliable fuse triggering.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient fuse structure for roller shutter doors. Utility Model Content

[0006] The purpose of this utility model is to provide a structure for a roller shutter door fuse. When the fuse is triggered, the trigger block is displaced. The displacement of the trigger block is transmitted to the actuator through the transition part. The pop-out plate of the actuator pops out under the elastic force of the pop-out spring, providing a stable and large force to separate the brake pad from the transmission mechanism. The fireproof roller shutter closes by sliding down by its own weight. The brake pad thrust is stable and the fuse triggering reliability is high.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] A roller shutter door fuse structure includes a triggering part, a transition part, and an actuating part. The triggering part includes a fuse rope and a trigger block connected to the fuse rope. The actuating part includes a pop-out plate and a pop-out spring connected to the pop-out plate, and the pop-out plate is provided with a protruding head. The transition part includes a movable plate connected to the trigger block and a rotating plate connected to the movable plate, and the rotating plate is provided with a blocking block for connecting to the protruding head.

[0009] As a preferred embodiment of this invention, the number of triggering parts is at least two, and the trigger blocks of the plurality of triggering parts are all in contact with and connected to the same side of the movable plate.

[0010] As a preferred embodiment of the present invention, it further includes a base plate and a cover plate disposed on the base plate, wherein at least a portion of the triggering part, the transition part, and the execution part are located between the base plate and the cover plate.

[0011] As a preferred embodiment of this invention, a trigger spring is provided on the side of the trigger block away from the fuse rope.

[0012] As a preferred embodiment of this utility model, the movable plate is connected to a movable column, and a limiting spring is sleeved on the outside of the movable column.

[0013] As a preferred embodiment of this invention, the elastic coefficient of the trigger spring is greater than that of the limit spring.

[0014] As a preferred embodiment of this utility model, the base plate is provided with a first limiting plate, and the first limiting plate is provided with a first through hole for facilitating the passage of the movable column.

[0015] As a preferred embodiment of this invention, the rotating plate is provided with a hinge shaft mounted on the base plate, the rotating plate rotates around the hinge shaft, and at least a portion of the blocking block is arc-shaped.

[0016] As a preferred embodiment of this invention, the base plate is provided with a reset spring for connecting to the rotating plate.

[0017] As a preferred embodiment of this utility model, a second limiting plate is provided on the base plate, and the second limiting plate is provided with a second through hole for facilitating the passage of the pop-out plate.

[0018] The beneficial effects of this utility model of a roller shutter door fuse structure are as follows: when the fuse rope is triggered, it causes the trigger block to shift. The shift of the trigger block is transmitted to the actuator through the transition part. The pop-out plate of the actuator pops out under the elastic force of the pop-out spring, providing a stable and large force to separate the brake pad from the transmission mechanism. The fireproof roller shutter closes by sliding down by its own weight. The thrust of the brake pad is stable, and the reliability of the fuse trigger is high. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a roller shutter door fuse structure in one embodiment of the present invention, when the transition section is not moved.

[0020] Figure 2 This is a schematic diagram of the overall main structure of a roller shutter door fuse structure in one embodiment of the present invention, showing the transition section being moved.

[0021] In the diagram: 1. Triggering part, 11. Fusible rope, 12. Triggering block, 13. Triggering spring, 2. Transition part, 21. Movable plate, 211. Movable column, 212. Limiting spring, 22. Rotating plate, 23. Blocking block, 24. Hinge shaft, 3. Actuating part, 31. Pop-out plate, 32. Pop-out spring, 33. Protruding head, 4. Base plate, 41. First limiting plate, 42. Second limiting plate, 43. Reset spring, 44. Third limiting plate. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and systems should be considered part of this application specification.

[0028] Example 1: As Figures 1 to 2 The diagram shown is merely one embodiment of the present invention. A roller shutter door fuse structure includes a triggering part 1, a transition part 2, and an execution part 3. The triggering part 1 includes a fuse rope 11 and a trigger block 12 connected to the fuse rope 11. The execution part 3 includes a pop-out plate 31 and a pop-out spring 32 connected to the pop-out plate 31. The pop-out plate 31 is provided with an extension head 33. The transition part 2 includes a movable plate 21 connected to the trigger block 12 and a rotating plate 22 connected to the movable plate 21. The rotating plate 22 is provided with a blocking block 23 for connecting to the extension head 33.

[0029] In this invention, the fuse rope 11 of the triggering part 1 is connected to the heating deformation element. When the temperature near the fireproof rolling shutter door rises, the heating deformation element deforms, causing the fuse rope 11 to move, which in turn causes the trigger block 12 to move. The transition part 2 transmits the displacement of the trigger block 12 to the execution part 3, so that the pop-out plate 31 of the execution part 3 pops out with a greater force under the elastic force of the pop-out spring 32, thereby separating the brake pad of the rolling shutter motor from the transmission mechanism. The fireproof rolling shutter closes by its own weight, sealing the building's smoke duct, preventing fire from spreading between floors, reducing the impact of the fire, and buying time for people to escape.

[0030] In the triggering part 1, a triggering spring 13 is provided on the side of the triggering block 12 away from the fuse rope 11. Under normal temperature conditions, the heating deformation element does not deform, so the heating deformation element tightens the fuse rope 11. The fuse rope 11 just counteracts the elastic force of the triggering spring 13, and the triggering block 12 does not move. When the temperature at the fireproof roller shutter rises, the heating deformation element begins to lengthen, so the fuse rope 11 slowly loosens until the temperature rises to a preset threshold, which is generally 70 degrees Celsius. At this time, the fuse rope 11 loosens to a certain extent, and the triggering spring 13 pulls the triggering block 12 away from the fuse rope 11 by the desired displacement under the action of elastic force.

[0031] At the transition section 2, the rotating plate 22 is provided with a hinge shaft 24 mounted on the base plate 4. The rotating plate 22 rotates around the hinge shaft 24. When the trigger block 12 pulls the target displacement away from the fuse rope 11, the movable plate 21 is pushed by the trigger block 12 to rotate around the hinge shaft 24, thereby causing the blocking block 23 to also move accordingly.

[0032] At the execution part 3, the pop-out plate 31 is provided with a protruding head 33. Before the blocking block 23 rotates, the protruding plate 33 abuts against the blocking block 23, and the pop-out spring 32 is in a compressed state. After the blocking block 23 rotates, the blocking block 23 disengages from the protruding plate 33, and the pop-out spring 32 is activated by elastic force, thereby pushing the pop-out plate 31 to pop out, so that the brake pads of the rolling door motor are separated from the transmission mechanism.

[0033] This utility model discloses a structure for a roller shutter door fuse. When the fuse rope melts at high temperature, it causes the trigger block to shift. The shift of the trigger block is transmitted to the actuator through the transition part. The pop-out plate of the actuator pops out under the elastic force of the pop-out spring, providing a stable and large force to separate the brake pad from the transmission mechanism. The fireproof roller shutter closes by sliding down under its own weight. The brake pad thrust is stable, and the fuse triggering reliability is high.

[0034] Example 2, still as Figures 1 to 2 As shown, this is only one embodiment of the present invention. Based on embodiment one, in the structure of the roller shutter door fuse of the present invention, the number of triggering parts 1 is at least two.

[0035] Generally, fireproof roller shutters are located on the walls of ventilated areas in shopping malls. Temperature should be monitored on both sides of the wall. If there is high temperature and smoke on either side during a fire, the fireproof roller shutter should close to block the spread of smoke and fire, and buy time for people to evacuate safely. Therefore, there should be two sets of temperature-sensing deformation elements located on both sides of the roller shutter wall for temperature detection, with two triggering parts 1.

[0036] Alternatively, some shopping malls have fireproof roller shutters with long spans, which are generally fireproof roller shutters with a long bottom beam structure driven by multiple motors. This results in a large span on both sides of the fireproof roller shutter, which can reach more than ten meters. If only one side is equipped with a heating deformation element, there is a safety hazard. Therefore, it is necessary to install a heating deformation element on each side of the fireproof roller shutter for temperature detection, with two triggering parts 1.

[0037] Alternatively, if a large shopping mall has multiple interconnected fireproof roller shutters with multiple roller shutter doors spaced apart, then at least one heating deformation element with multiple triggering parts should be installed at each fireproof roller shutter door for temperature detection.

[0038] It is understood that there can be multiple triggering parts 1, and the triggering blocks 12 of the multiple triggering parts 1 are all in contact with the same side of the movable plate 21. When any heating deformation element senses high temperature, the triggering part 1 connected to it will pull and cause the movable plate 21 to rotate.

[0039] This utility model provides a roller shutter door fuse structure that can control the fireproof roller shutter fuse from one point to multiple points.

[0040] Example 3, still as Figures 1 to 2 As shown, this is only one embodiment of the present utility model. Based on any of the above embodiments, the structure of the roller shutter door fuse of the present utility model also includes a base plate 4 and a cover plate disposed on the base plate 4. At least a portion of the triggering part 1, the transition part 2 and the execution part 3 are located between the base plate 4 and the cover plate.

[0041] The base plate 4 is provided with bolt mounting holes. The floor 4 can be installed on the wall or beam by installing bolts through the bolt mounting holes. The trigger part 1, the transition part 2 and the execution part 3 are all provided on the base plate 4. Finally, the cover plate is placed on the base plate 4 to protect the trigger part 1, the transition part 2 and the execution part 3.

[0042] The movable plate 21 is connected to a movable column 211, and a limiting spring 212 is sleeved on the outside of the movable column 211.

[0043] Of course, the elastic coefficient of the trigger spring 13 is greater than that of the limit spring 212; that is, when the fuse rope 11 cannot be tightened, the elastic force of the trigger spring 13 is greater than that of the limit spring 212, causing the trigger spring 13 to pull the trigger block 12 to move, thereby pushing the movable plate 21 to rotate.

[0044] Here, a first limiting plate 41 is provided on the base plate 4, and the first limiting plate 41 is provided with a first through hole for facilitating the passage of the movable column 211.

[0045] Furthermore, at least a portion of the blocking block 23 is arc-shaped, and the side of the protruding head 33 away from the pop-out spring is a flat surface; the side of the protruding head 33 near the pop-out spring is an arc-shaped surface, so that the protruding head 33 can abut against the blocking block 23 to prevent the spring 32 from popping out. However, when the pop-out plate 31 is pushed to reset, the protruding head 33 can easily pass over the blocking block 23 from the side of the blocking block 23 away from the pop-out spring 32 to the side of the blocking block 23 near the pop-out spring 32.

[0046] In addition, the base plate 4 is provided with a reset spring 43 for connecting with the rotating plate 22, so that the transition part 2 can effectively reset the blocking block 23 when manually reset.

[0047] Finally, a second limiting plate 42 is provided on the base plate 4, and the second limiting plate 42 is provided with a second through hole for facilitating the passage of the pop-out plate 31.

[0048] This utility model discloses a structure for a roller shutter door fuse. When the fuse rope is triggered, it causes the trigger block to shift. The shift of the trigger block is transmitted to the actuator through the transition part. The pop-out plate of the actuator pops out under the elastic force of the pop-out spring, providing a stable and large force to separate the brake pad from the transmission mechanism. The fireproof roller shutter closes by sliding down under its own weight. The brake pad thrust is stable, and the fuse triggering reliability is high.

[0049] This utility model is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A roller shutter fuse structure, characterized by: The device includes a triggering part (1), a transition part (2), and an execution part (3). The triggering part (1) includes a fuse rope (11) and a trigger block (12) connected to the fuse rope (11). The execution part (3) includes a pop-out plate (31) and a pop-out spring (32) connected to the pop-out plate (31). The pop-out plate (31) is provided with a protruding head (33). The transition part (2) includes a movable plate (21) connected to the trigger block (12) and a rotating plate (22) connected to the movable plate (21). The rotating plate (22) is provided with a blocking block (23) for connecting to the protruding head (33).

2. A roller shutter fuse structure according to claim 1, wherein: The number of triggering parts (1) is at least two.

3. The structure of a roller shutter door fuse according to claim 1, characterized in that: It also includes a base plate (4) and a cover plate disposed on the base plate (4), wherein at least a portion of the triggering part (1), the transition part (2) and the execution part (3) are located between the base plate (4) and the cover plate.

4. A roller shutter fuse structure according to claim 3, wherein: A trigger spring (13) is provided on the side of the trigger block (12) away from the fuse rope (11).

5. A roller shutter fuse structure according to claim 4, wherein: The movable plate (21) is connected to a movable column (211), and a limiting spring (212) is sleeved on the outside of the movable column (211).

6. A roller shutter fuse structure according to claim 5, wherein: The elastic coefficient of the trigger spring (13) is greater than that of the limit spring (212).

7. A roller shutter fuse structure according to claim 5, wherein: The base plate (4) is provided with a first limiting plate (41), and the first limiting plate (41) is provided with a first through hole for facilitating the passage of the movable column (211).

8. A roller shutter fuse structure according to claim 3, wherein: The rotating plate (22) is provided with a hinge shaft (24) mounted on the base plate (4). The rotating plate (22) rotates around the hinge shaft (24). At least a portion of the blocking block (23) is arc-shaped.

9. A roller shutter fuse structure according to claim 3, wherein: The base plate (4) is provided with a return spring (43) for connecting with the rotating plate (22).

10. A roller shutter fuse structure according to claim 3, wherein: The base plate (4) is provided with a second limiting plate (42), and the second limiting plate (42) is provided with a second through hole for facilitating the passage of the pop-out plate (31).

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