Tubular fire curtain release system

Abstract

A tubular fireproof curtain release system, comprising a winding shaft assembly for winding and unwinding curtain pieces, and a driving assembly, the driving assembly comprising a guide wheel, a stroke assembly, a brake assembly, a motor and a gearbox connected in sequence through a support shaft, one end of the motor being connected to the brake assembly, the other end being drivingly connected with a driving wheel through the gearbox, the driving wheel being used to control winding and unwinding of the winding shaft assembly; the brake assembly comprising a brake disc, a brake pad, an electromagnet and a hand lever, the hand lever being used to drive the brake pad away from the brake disc; and a temperature trigger assembly, the temperature trigger assembly being used to compress and store elastic potential energy, and to pull the hand lever when the temperature reaches a release value, the hand lever in turn driving the brake pad away from the brake disc, the curtain pieces falling and closing under their own weight, the response speed being fast and the operation safety being high, which is conducive to timely controlling the spread of fire and reducing losses.

Description

Technical Field

[0001] This utility model relates to the field of fireproof roller shutter technology, and in particular to a tubular fireproof roller shutter release system. Background Technology

[0002] Fire-resistant roller shutters are key fire protection facilities that use transmission components and control systems to drive the curtain up and down, thereby achieving fire separation. They are widely used in commercial, industrial, and civil buildings. In large commercial complex projects, to create a spacious and transparent spatial effect, atriums are often designed with large spans, no columns, and curved structures. Such spaces require the use of tubular modular fire-resistant roller shutters for fire separation. They occupy little space and are unrestricted, performing particularly well in narrow passages, roller shutter panels, and doorways. They are easy to install, avoiding the problems of loose chains in traditional motors, and do not have the drawbacks of noise caused by small sprockets. Furthermore, tubular motors are superior to traditional motors in that they are better concealed, with no protruding parts, resulting in a harmonious and aesthetically pleasing overall appearance.

[0003] In the event of a fire, if the roller shutter fails to close in time, leaving the opening open, airflow will create a source of combustion, exacerbating the spread of the fire. Furthermore, if the roller shutter system encounters mechanical problems such as motor failure, brake malfunction, or even manual chain operation fails, the tubular motor can quickly release and close the shutter, preventing the fire from spreading. Utility Model Content

[0004] This invention provides a tubular fireproof roller shutter release system to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tubular fireproof roller shutter release system includes a roller assembly for retracting and extending the roller shutter slats, and further includes:

[0007] A drive assembly includes a hand zipper wheel connected to a wall and a support shaft connected to the hand zipper wheel. The support shaft is sequentially connected to a guide wheel, a stroke assembly, a brake assembly, a motor, and a gearbox. One end of the motor is connected to the brake assembly, and the other end is driven to a drive wheel through the gearbox. The drive wheel is used to drive the spool assembly and the guide wheel to rotate synchronously. The stroke assembly is driven to the guide wheel.

[0008] The braking assembly includes a brake disc, brake pads, an electromagnet, and a lever. The brake disc is fixed to the motor. A first end of the lever is connected to the brake pad, and a second end passes through the electromagnet and is connected to the hand-operated chain wheel. The electromagnet controls the brake pads to move closer to or further away from the brake disc.

[0009] A temperature triggering component is used to compress and store elastic potential energy and release it when the temperature reaches the release value to trigger the hand lever. The hand lever drives the brake pad away from the brake disc, so that the roller shutter door panel closes under its own weight.

[0010] Furthermore, the temperature triggering component includes a fuse connected to a steel wire rope, and also includes a hand hook and a hand hook that are engaged in transmission. The end of the hand hook away from the hand hook is used to pry the hand lever to move the brake pad away from the brake disc, and the hand hook is connected to the steel wire rope.

[0011] Furthermore, the fuse includes a housing and a slider, with both ends of the elastic element abutting against the housing and the slider respectively. The housing and the slider are fixed together by a fusible link. One end of the steel wire rope is fixed to the slider, and the other end passes through the housing and is fixed to the hand-pulled hook.

[0012] Furthermore, the zipper wheel is mounted on the hand lever base, and the hand lever hook is provided between the zipper wheel and the hand lever base.

[0013] Furthermore, the pull rod is movable within the support shaft, and the guide wheel and stroke assembly are sleeved on the support shaft.

[0014] Furthermore, the brake assembly also includes a spring and a bushing fitted onto the lever, the spring and bushing working together to push the brake pads closer to the brake disc.

[0015] Furthermore, the brake disc includes a brake disc and two brake arms mounted on the brake disc, and the two brake arms are connected by a tension spring.

[0016] Furthermore, the reel assembly includes a bearing seat fixed to the wall, a spindle installed in the bearing seat, and a reel rotatably connected to the spindle, the reel being fixedly connected to the drive wheel.

[0017] Furthermore, it also includes a controller, which is connected to a motor power supply line, a travel signal line, and an electromagnetic line. The controller is connected to a power switch, the travel assembly, the electromagnet, and the motor, thereby controlling the raising or lowering of the roller shutter door panel.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model proposes a tubular fireproof roller shutter release system, including a roller assembly for retracting and extending the roller shutter panel, and a drive assembly. The drive assembly includes a guide wheel, a stroke assembly, a brake assembly, a motor, and a gearbox connected in sequence via a support shaft. One end of the motor is connected to the brake assembly, and the other end is driven by a drive wheel via the gearbox. The drive wheel is used to control the retraction and extension of the roller assembly. The brake assembly includes a brake disc, brake pads, an electromagnet, and a hand lever. The hand lever is used to move the brake pads away from the brake disc. A temperature triggering assembly is also included. The temperature triggering assembly stores elastic potential energy and pulls the hand lever when the temperature reaches a release value. The hand lever then moves the brake pads away from the brake disc, allowing the roller shutter panel to fall and close under its own weight. This system offers fast response and high operational safety, facilitating timely control of fire spread and reducing losses.

[0020] 2. The present invention proposes a tubular fireproof roller shutter release system, wherein the fuse includes a housing and a slider, the two ends of an elastic element abut against the housing and the slider respectively, and the housing and the slider are fixed together by a fusible link. One end of a steel wire rope is fixed to the slider, and the other end passes through the housing and is fixed to a hand-operated hook. When the fusible link melts, the elastic element releases its elastic force to push the slider open, and the slider pulls the steel wire rope to drive the hand-operated hook to pry open the hand-operated hook and the hand-operated rod, so that the brake pads move away from the brake disc. When the brake is disengaged, the roller shutter door panel descends according to its own weight.

[0021] 3. The tubular fireproof roller shutter release system proposed in this utility model includes a brake assembly that also includes a spring. The spring is used to push the brake pads closer to the brake disc. When the fusible link melts, the lever overcomes the spring force to pull the brake pads. The electromagnet is used to control the brake pads to move closer to or away from the brake disc. Under normal use, the control of the brake pads can be achieved by controlling the electromagnet with a signal.

[0022] 4. The present invention proposes a tubular fireproof roller shutter release system, wherein the brake disc includes a brake disc and a brake arm installed on the brake disc. The two brake arms are connected by a tension spring, which plays a deceleration role when descending, ensuring the smooth descent and precise positioning of the roller shutter.

[0023] 5. The present invention proposes a tubular fireproof roller shutter release system, wherein the first end of the hand lever abuts against the brake pad, and the second end passes through the electromagnet and spring and is synchronously connected to the hand chain wheel. A hand hook is provided between the hand chain wheel and the hand lever base. In the event of a controller failure, the door can be raised or lowered by pulling the hand chain wheel. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is one of the schematic diagrams of a tubular fireproof roller shutter release system according to this utility model;

[0026] Figure 2 This is a second schematic diagram of a tubular fireproof roller shutter release system according to the present invention;

[0027] Figure 3 This is a schematic diagram of the brake pads and hand lever of a tubular fireproof roller shutter release system according to this utility model;

[0028] Figure 4 This is a schematic diagram of the guide wheel of a tubular fireproof roller shutter release system according to the present invention;

[0029] Figure 5 This is one of the schematic diagrams of a brake disc in a tubular fireproof roller shutter release system according to this utility model;

[0030] Figure 6 This is a second schematic diagram of the brake disc of a tubular fireproof roller shutter release system according to this utility model;

[0031] Figure 7 This is a schematic diagram of the stroke assembly of a tubular fireproof roller shutter release system according to the present invention;

[0032] Figure 8 This is a schematic diagram of the application of a tubular fireproof roller shutter release system according to this utility model;

[0033] In the diagram, 10 is the roller shutter panel; 201 is the bearing housing; 202 is the spindle; 203 is the roller; 204 is the support plate; 30 is the drive assembly; 301 is the hand-operated base; 3011 is the fixed bracket; 302 is the support shaft; 303 is the guide wheel; 3031 is the mounting cavity; 3032 is the gear ring; 304 is the motor; 305 is the stroke assembly; 3051 is the stroke gear; 306 is the hand-operated sprocket; 307 is the gearbox; 308 is the drive wheel; 401 is the brake disc; 4011 is the brake disc; 4012 is the brake arm; 4013 is the tension spring; and 402 is the brake pad. 403. Hand lever; 4031. Protrusion; 404. Spring; 405. Electromagnet; 406. Bushing; 50. Temperature trigger assembly; 501. Fuse; 502. Wire rope; 5031. Hand hook; 5032. Hand hook; 5033. Clutch hook; 504. Bolt; 601. Positioning post; 602. Limiting groove; 701. Main board; 702. Auxiliary plate; 80. Wall; 901. Door groove; 902. Controller; 903. Power switch; 9041. Motor power cord; 9042. Travel signal line; 9043. External power cord. Detailed Implementation

[0034] The following is combined with Figure 1-8 This utility model will be described in detail.

[0035] This embodiment provides a tubular fireproof roller shutter release system, such as Figure 1 and Figure 2 As shown, the device includes a roller assembly for retracting and extending the roller shutter door panel 10, and a drive assembly 30. The drive assembly 30 includes a hand chain wheel 306 connected to the wall 80, and a support shaft 302 connected to the hand chain wheel 306. The support shaft 302 is sequentially connected to a guide wheel 303, a stroke assembly 305, a brake assembly, a motor 304, and a gearbox 307. The output end of the motor 304 is connected to the brake assembly, and the other end is driven to a drive wheel through the gearbox 307. The drive wheel is used to drive the roller assembly and the guide wheel 303 to rotate synchronously. The stroke assembly 305 is driven to the guide wheel 303.

[0036] A braking assembly includes a brake disc 401, brake pads 402, an electromagnet 405, and a lever 403. The brake disc 401 is fixed to a motor 304. The first end of the lever 403 is connected to the brake pads 402, and the second end passes through the electromagnet 405 and is connected to a hand-operated chain wheel 306. The electromagnet 405 controls the brake pads 402 to move closer to or further away from the brake disc 401.

[0037] Temperature trigger component 50 is used to compress and store elastic potential energy and release the trigger lever 403 when the temperature reaches the release value. The lever 403 drives the brake pad 402 away from the brake disc 401, so that the roller shutter door 10 closes under its own weight. 1. It has a fast response speed and high operational safety, which is conducive to timely control of the spread of fire and reduction of losses.

[0038] In this embodiment, the temperature triggering component 50 includes a fuse 501 connected to a steel wire rope 502, and also includes a hand hook 5031 and a hand hook 5032 that are engaged in transmission. The end of the hand hook 5031 away from the hand hook 5032 is used to pry the lever 403 to move the brake pad 402 away from the brake disc 401. The hand hook 5032 is connected to the steel wire rope 502. It also includes a clutch hook 5033, which is used to adjust the tension between the hand hook 5031 and the hand hook 5032, thereby improving the system's response speed and enhancing the overall structural stability and reliability.

[0039] In this embodiment, the fuse 501 includes a housing and a slider. The two ends of the elastic element abut against the housing and the slider respectively. The housing and the slider are fixed together by a fuse piece. One end of the wire rope 502 is fixed to the slider, and the other end passes through the housing and is fixed to the hand hook 5032.

[0040] The fusible link is made of two copper sheets glued together. One copper sheet is fixed to the slider, and the other copper sheet is fixed to the housing. When the two copper sheets are glued together, the elastic element is in a compressed state. When the external temperature reaches the release value (70°C in this embodiment), the two copper sheets of the fusible link separate, and the slider slides under the elastic force of the elastic element. It then pulls the handle hook 5032 through the wire rope 502, which drives the handle 403 and the brake pad 402 away from the brake disc 401, thereby releasing the roller shutter door panel 10. This helps to control the spread of fire in a timely manner and reduce losses.

[0041] The hand lever 403 is movable within the support shaft 302, which is sleeved with a guide wheel 303 and a stroke assembly 305. A hand chain wheel 306 is synchronously connected to the second end of the hand lever 403. The hand chain wheel 306 is mounted on the hand-operated base 301, and a hand hook 5031 is provided between the hand chain wheel 306 and the hand-operated base 301. Furthermore, the hand chain wheel 306 includes a chain mounted circumferentially, allowing manual control of the roller shutter door 10 to open and close in case of mechanical failures such as a malfunctioning motor 304 or a non-functional brake assembly. One end face of the guide wheel 303 has a mounting cavity 3031, within which a gear ring 3032 is also provided. Figure 5-6 As shown, the stroke assembly 305 is equipped with a stroke gear 3051 that meshes with the gear ring 3032, making the overall structure more stable and solid, and the transmission process more stable and precise.

[0042] In this embodiment, as Figure 3 As shown, the brake assembly also includes a spring 404 and a bushing 406 sleeved on the hand lever 403. The spring 404 and bushing 406 are used to push the brake pad 402 closer to the brake disc 401. The first end of the hand lever 403 has a protrusion 4031 for engaging a limiting piece. The hand lever 403 drives the brake pad 403 away from the brake disc 401 through the protrusion 4031. An electromagnet 405 is sleeved on the outside of the spring 404, and the bushing 406 is sleeved on the outside of the hand lever 403, with the side of the bushing away from the brake pad 402 abutting against the spring 404. When the hand lever 403 drives the brake pad 402 away from the brake disc 401, the bushing 406 compresses the spring 404 until the brake pad 402 abuts against the inner wall of the support shaft 302; when the external force disappears, the spring 404 pushes the brake pad 402 back to its original position.

[0043] In this embodiment, the brake disc 401 includes a brake disc 4011 and two brake arms 4012 mounted on the brake disc 4011. The two brake arms 4012 are connected by a tension spring 4013. Specifically, the brake disc 4011 is provided with a positioning post 601 for the brake arms 4012 to pass through, and the brake disc 4011 is also provided with a limiting groove 602. During assembly, the two brake arms 4012 are first installed on the positioning post 601, then each brake arm 4012 is rotated to the limiting groove 602, and finally the tension spring 4013 is installed to ensure stable connection and effectively prevent the roller shutter 10 from rebounding when stopped, ensuring the smooth operation and precise positioning of the roller shutter 10. The tension spring 4013 is an elastic element such as a spring.

[0044] In this embodiment, the reel assembly includes a bearing seat 201 fixed to the wall 80, a spindle 202 installed in the bearing seat 201, and a reel 203 rotatably connected to the spindle 202. One end of the reel 203 away from the bearing seat 201 is drively connected to a drive wheel 308. Figure 4 As shown, specifically, the drive wheel 308 and guide wheel 303 are riveted and fixed to the roller 203, so that the guide wheel 303 rotates synchronously with the drive wheel 308. A roller shutter panel 10 is mounted on the roller 203. Furthermore, the wall 80 is also provided with a main plate 701 and an auxiliary plate 702, with a bearing seat 201 mounted on the auxiliary plate 702. A hand-operated chain wheel 306 is mounted on the main plate 701, and a fixing bracket 3011 is also provided on the hand-operated chain wheel 306. The fixing bracket 3011 is used to fix the bolt 504 and the wire rope 502.

[0045] It also includes a controller 902, which is connected to the motor power supply line 9041, the travel signal line 9042, and the electromagnetic wire. The controller 902 is also connected to a power switch 903, a travel assembly 305, an electromagnet, and a motor 304, thereby controlling the raising or lowering of the roller shutter door 10. A door slot 901 for the roller shutter door 10 to move is provided on the wall 80. The wall 80 is equipped with the controller 902, the power switch 903, the motor power supply line 9041, the travel signal line 9042, the electromagnetic wire 405, and the external power supply line 9043.

[0046] This utility model provides a tubular fireproof roller shutter release system, such as Figure 8 As shown,

[0047] Assemble the reel assembly and drive assembly 30: Fix the main board 701 and the auxiliary plate 702 to the wall 80, then install the drive assembly 30 into the reel 203, and rivet the drive wheel 308 and the guide wheel 303 to the first end of the reel 203. Then fix the spindle 202 and the support plate 204 into the reel 203 at the second end. Finally, install the reel 203 between the main board 701 and the auxiliary plate 702.

[0048] Install other components: Fix the controller 902 at a suitable height on the wall 80, then connect all the connecting wires and signal wires between the drive assembly 30, the controller 902, and the power switch 903, and test whether it is running. Fix the door slot 901 to the wall 80 and install the roller shutter door panel 10.

[0049] Install the temperature triggering component 50: Fix the fuse 501 in a suitable position in the middle of the door width, specifically on the ceiling or other easily heated location, where the fire is unlikely to reach it, and the fuse will only detach when the temperature rises to 70 degrees Celsius. Then adjust the upper and lower limit positions of the roller shutter door 10.

[0050] The roller shutter door panel 10 is wound up to its upper limit position for testing: The fusible link is manually removed, causing the elastic element to eject the slider from the housing. The slider pulls the wire rope 502, which in turn pulls the hand hook 5032. The hand hook 5032 then acts on the hand lever 403, causing the brake pad 402 to disengage from the brake disc 401. The roller shutter door panel 10 then slides down naturally under its own weight, automatically closing the door.

[0051] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A tubular fireproof roller shutter release system, comprising a roller assembly for retracting and extending the roller shutter panels, characterized in that, Also includes: A drive assembly includes a hand zipper wheel connected to a wall and a support shaft connected to the hand zipper wheel. The support shaft is sequentially connected to a guide wheel, a stroke assembly, a brake assembly, a motor, and a gearbox. One end of the motor is connected to the brake assembly, and the other end is driven to a drive wheel through the gearbox. The drive wheel is used to drive the spool assembly and the guide wheel to rotate synchronously. The stroke assembly is driven to the guide wheel. The brake assembly includes a brake disc, brake pads, an electromagnet, and a lever. The brake disc is fixed to the motor. The first end of the lever is connected to the brake pads, and the second end passes through the electromagnet and is connected to the hand chain wheel. The electromagnet is used to control the brake pads to move closer to or further away from the brake disc. as well as A temperature triggering component is used to compress and store elastic potential energy and release it when the temperature reaches the release value to trigger the hand lever. The hand lever drives the brake pad away from the brake disc, so that the roller shutter door panel closes under its own weight.

2. The tubular fireproof roller shutter release system as described in claim 1, characterized in that, The temperature triggering component includes a fuse connected to a steel wire rope, and also includes a hand hook and a hand hook that are engaged in transmission. The end of the hand hook away from the hand hook is used to pry the hand lever to move the brake pad away from the brake disc. The hand hook is connected to the steel wire rope.

3. The tubular fireproof roller shutter release system as described in claim 2, characterized in that, The fuse includes a housing and a slider. The two ends of the elastic element abut against the housing and the slider respectively. The housing and the slider are fixed together by a fusible link. One end of the steel wire rope is fixed to the slider, and the other end passes through the housing and is fixed to the hand-pulled hook.

4. The tubular fireproof roller shutter release system as described in claim 3, characterized in that, The hand zipper is mounted on the hand zipper base, and the hand hook is provided between the hand zipper and the hand zipper base.

5. The tubular fireproof roller shutter release system as described in claim 1, characterized in that, The hand lever is movable within the support shaft, and the guide wheel and stroke assembly are sleeved on the support shaft.

6. The tubular fireproof roller shutter release system as described in claim 5, characterized in that, The brake assembly also includes a spring and a bushing fitted onto the lever, the spring and bushing working together to push the brake pads closer to the brake disc.

7. The tubular fireproof roller shutter release system as described in claim 1, characterized in that, The brake disc includes a brake disc and two brake arms mounted on the brake disc, and the two brake arms are connected by a tension spring.

8. The tubular fireproof roller shutter release system as described in claim 1, characterized in that, The reel assembly includes a bearing seat fixed to the wall, a spindle installed in the bearing seat, and a reel rotatably connected to the spindle, the reel being fixedly connected to the drive wheel.

9. The tubular fireproof roller shutter release system as described in any one of claims 1-8, characterized in that, It also includes a controller, which is connected to a motor power supply line, a travel signal line and an electromagnetic line, and is connected to a power switch, the travel assembly, an electromagnet and a motor, thereby controlling the raising or lowering of the roller shutter door panel.

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