Fireproof curtain door quick fuse release mechanism

Abstract

The utility model relates to fire prevention technical field discloses fire -fighting is with fire -retardant curtain door quick fuse release mechanism, including door frame, the front side of door frame is opened with mounting slot, the inside rear side fixedly connected with protection cover of mounting slot, the front side top right end of door frame is fixedly connected with support plate, the top fixedly connected with temperature detector of support plate, the front side middle upper part left end of door frame is fixedly connected with smoke transducer, the front side middle left end of door frame is fixedly connected with power, the front side middle lower part left end of door frame is fixedly connected with fuse. In the utility model, temperature detector and smoke transducer monitor environmental temperature and smoke concentration, once temperature sharply rises to preset value or is smoke concentration overproof, make heating pipe rapid heating, make fuse quick fuse, lose the special grade fire -retardant curtain door of restraint, under the action of gravity automatic falling, form fire -proof barrier, increase fire -retardant partition effect.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a quick-release mechanism for fire-resistant rolling shutter doors. Background Technology

[0002] The quick-release mechanism for fire-resistant rolling shutters is a safety device within the fire-resistant rolling shutter. This mechanism uses a fusible alloy or other heat-sensitive element as a trigger. When a fire occurs, the ambient temperature rises sharply, reaching the melting point of the fusible alloy or the operating temperature of the heat-sensitive element. This causes the fusible alloy to melt or the heat-sensitive element to deform, triggering the release mechanism. This causes the fire-resistant rolling shutter to lose its support or lock, and fall rapidly under gravity, thus achieving fire separation and preventing the spread of fire.

[0003] The rapid-release mechanism relies on temperature triggering. However, in some non-fire scenarios, such as high-temperature environments in industrial production or extreme weather conditions, it may be falsely triggered due to abnormally high ambient temperatures, causing unnecessary descent of the fireproof roller shutter and disrupting normal production and living order. Existing technology uses a temperature change rate monitoring device in the release mechanism to trigger the roller shutter to descend only when the temperature rises rapidly in a short period of time and reaches a certain threshold. This can distinguish between normal temperature fluctuations and rapid temperature rises caused by fire, reducing the probability of false triggering caused by non-fire factors such as high-temperature industrial environments or extreme weather. However, in actual use, if the temperature rises slowly in the early stages of a fire, or if the fire source is blocked, the surrounding temperature may not reach the action threshold of the rapid-release mechanism in time, causing the mechanism to fail to trigger in time, delaying the descent of the fireproof roller shutter and affecting the fire separation effect. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a quick-release mechanism for fire-resistant rolling shutter doors. It aims to improve the problem in the prior art where the temperature rises slowly in the early stages of a fire, or the fire source is blocked, and the surrounding temperature fails to reach the action threshold of the quick-release mechanism in time, which will cause the mechanism to fail to trigger in time, delaying the descent of the fire-resistant rolling shutter door and affecting the fire separation effect.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fire-resistant rolling shutter door quick-release mechanism, including a door frame, a mounting groove on the front side of the door frame, a protective cover fixedly connected to the rear side of the mounting groove, a support plate fixedly connected to the top right end of the front side of the door frame, a temperature detector fixedly connected to the top of the support plate, a smoke sensor fixedly connected to the upper left end of the front side of the door frame, a power supply fixedly connected to the middle left end of the front side of the door frame, a fuse fixedly connected to the lower left end of the front side of the door frame, two fixing brackets fixedly connected to the lower left end of the front side of the door frame, two heating tubes fixedly connected inside each of the two fixing brackets, a protective box fixedly connected to the lower left end of the front side of the door frame, a cabinet door provided on the front side of the interior of the protective box, a super-grade fire-resistant rolling shutter door rotatably connected inside the protective cover, and sliding mechanisms provided on both the left and right sides of the cabinet door.

[0006] As a further description of the above technical solution:

[0007] The sliding mechanism includes two slide bars, which are fixedly connected to the left and right sides of the cabinet door. Slide grooves are provided on the left and right sides of the front interior of the protective box. Two buckle fasteners are fixedly connected to the front top of the protective box. Two pipe clamps are fixedly connected to the top of the cabinet door. Slide grooves are provided on the opposite sides of the two slide bars and between the adjacent slide grooves. Rotary balls are rotatably connected inside the two front slide grooves.

[0008] As a further description of the above technical solution:

[0009] A lamp holder is fixedly connected to the top front side of the gantry, and an alarm light is fixedly connected to the front side of the lamp holder.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the bottom front side of the cabinet door, and multiple semi-circular grooves are opened on the front side of the handle.

[0012] As a further description of the above technical solution:

[0013] The bottom of the support plate is fixedly connected to two diagonal braces, and the bottom of both diagonal braces is fixedly connected to the top left end of the front side of the gantry.

[0014] As a further description of the above technical solution:

[0015] The bottom of the extra-grade fireproof roller shutter door is fixedly connected to a base, and the bottom of the base is fixedly connected to a protective pad.

[0016] As a further description of the above technical solution:

[0017] A sealing tube is fixedly connected to the bottom of the cabinet door, and a sealing groove is provided at the bottom front of the interior of the protective box.

[0018] As a further description of the above technical solution:

[0019] The outer diameter of both sliders is smaller than the inner diameter of the groove, and the outer wall of both balls matches the inside of the groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the temperature detector and the smoke sensor monitor the ambient temperature and smoke concentration. Once the temperature rises sharply to the preset value or the smoke concentration exceeds the standard, the heating tube heats up rapidly, causing the fuse to melt quickly. The unrestrained fireproof roller shutter door automatically falls under the action of gravity, forming a fire barrier and increasing the fire separation effect.

[0022] 2. In this utility model, the sliding strips on both sides of the cabinet door and the sliding groove of the protective box form a guide structure, allowing the cabinet door to move smoothly along a fixed trajectory when opening and closing. After the cabinet door is closed, the buckle fastener engages with the top tube of the cabinet to form a connection, preventing the cabinet door from being opened accidentally. The sliding groove and the ball bearing between the sliding strip and the sliding groove replace the sliding friction with rolling friction, reducing the resistance to opening and closing the cabinet door, reducing component wear, and extending the service life of the connection structure. Attached Figure Description

[0023] Figure 1 This is a perspective view of the quick-release mechanism for fire-resistant rolling shutter doors proposed in this utility model.

[0024] Figure 2 This is a front view of the quick-release mechanism for fire-resistant rolling shutter doors proposed in this utility model.

[0025] Figure 3 This is a left view of the quick-release mechanism for fire-resistant rolling shutter doors proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the fuse in the quick-release mechanism for fire-resistant rolling shutter doors proposed in this utility model.

[0027] Figure 5 This is an exploded view of the cabinet door of the fire-resistant rolling shutter door quick-release mechanism proposed in this utility model.

[0028] Legend:

[0029] 1. Door frame; 2. Sliding mechanism; 201. Sliding strip; 202. Sliding groove; 203. Buckle fastener; 204. Pipe clamp; 205. Sliding groove; 206. Rotary ball; 3. Mounting groove; 4. Protective cover; 5. Support plate; 6. Temperature detector; 7. Smoke sensor; 8. Power supply; 9. Fuse; 10. Fixture; 11. Heating element; 12. Protective box; 13. Cabinet door; 14. Extra-fire-resistant rolling shutter door; 15. Lamp holder; 16. Alarm light; 17. Handle; 18. Semicircular groove; 19. Diagonal brace; 20. Base; 21. Protective pad; 22. Sealing tube; 23. Sealing groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a fire-resistant rolling shutter door quick-release mechanism, including a door frame 1. A mounting groove 3 is provided on the front side of the door frame 1. A protective cover 4 is fixedly connected to the rear side of the mounting groove 3 to protect the extra-high fire-resistant rolling shutter door 14. A support plate 5 is fixedly connected to the top right end of the front side of the door frame 1. A temperature detector 6 is fixedly connected to the top of the support plate 5 to detect whether the temperature rises rapidly in a short time and reaches a certain threshold. A smoke sensor 7 is fixedly connected to the upper left end of the front side of the door frame 1 to detect the smoke concentration. A power supply 8 is fixedly connected to the upper left end of the front side of the door frame 1 to provide power. A fuse 9 is fixedly connected to the lower left end of the front side of the door frame 1. When the temperature is too high... The fuse 9 will melt, causing the fireproof roller shutter door 14 to descend. Two fixed brackets 10 are fixedly connected to the lower left side of the front side of the door frame 1. Two heating tubes 11 are fixedly connected inside the two fixed brackets 10. When the smoke concentration detected by the smoke sensor 7 exceeds the threshold or the temperature detector 6 detects that the temperature exceeds the threshold, the heating tubes 11 emit heat, causing the fuse 9 to melt and the fireproof roller shutter door 14 to descend. A protective box 12 is fixedly connected to the lower left side of the front side of the door frame 1. A cabinet door 13 is provided on the front side of the inside of the protective box 12 to protect the fuse 9. The fireproof roller shutter door 14 is rotatably connected inside the protective cover 4 for fire prevention. Sliding mechanisms 2 are provided on both the left and right sides of the cabinet door 13.

[0032] Specifically, the mounting groove 3 on the front side of the gantry 1 has a protective cover 4 fixedly connected to its rear side, providing all-around protection for the extra-grade fireproof rolling shutter door 14, preventing external damage and ensuring stable fire resistance. A support plate 5 is fixedly installed on the top right end of the front side of the gantry 1, and a temperature detector 6 on it can accurately detect temperature changes. When the ambient temperature rises rapidly within a short time and reaches a preset threshold, an early warning signal will be issued. A smoke sensor 7 on the upper left side of the front side of the gantry 1 monitors the smoke concentration in real time. Once the smoke concentration exceeds the safety threshold, a response mechanism is immediately triggered. A power supply 8 on the upper left side of the front side of the gantry 1 provides a stable power supply to the entire system. Electricity ensures the normal operation of all components. The fuse 9 at the lower left end is a key component. When the temperature is too high, it will melt quickly, allowing the fire-resistant roller shutter door 14 to automatically descend under gravity, achieving fire separation. The heating tubes 11 in the two fixing brackets 10 are linked with the smoke sensor 7 and the temperature detector 6. When one of them detects an abnormality, the heating tube 11 heats up quickly, accelerating the melting of the fuse 9, ensuring that the fire-resistant roller shutter door 14 falls in time. The protection box 12 and its cabinet door 13 provide protection for the fuse 9, preventing it from being interfered with by external factors, ensuring its reliability and stability, and comprehensively protecting the fire safety of the building.

[0033] Reference Figure 3 and Figure 5 The sliding mechanism 2 includes two slide bars 201, which are fixedly connected to the left and right sides of the cabinet door 13. The left and right sides of the front side of the interior of the protective box 12 are provided with slide grooves 202. The slide bars 201 can slide up and down inside the slide grooves 202. Two buckle retainers 203 are fixedly connected to the front top of the protective box 12. Two pipe clamps 204 are fixedly connected to the top of the cabinet door 13. The buckle retainers 203 fasten the pipe clamps 204 to prevent the cabinet door 13 from opening accidentally. Slide grooves 205 are provided between the opposite sides of the two slide bars 201 and between the adjacent sides of the two slide grooves 202. The interior of the two front slide grooves 205 is rotatably connected with a ball bearing 206 to change sliding friction into rolling friction and reduce friction.

[0034] Specifically, sliding strips 201 are fixedly connected to the left and right sides of the cabinet door 13. Sliding grooves 202 are provided on the left and right sides of the front side inside the protective box 12. The sliding strips 201 can slide smoothly up and down in the sliding grooves 202, so that the cabinet door 13 can be opened and closed smoothly, which facilitates the inspection and maintenance of the internal fuse 9. To prevent the cabinet door 13 from being opened accidentally, two buckle fixing devices 203 are provided on the front side of the top of the protective box 12, and two pipe clamps 204 are installed on the top of the cabinet door 13 to form a snap-fit ​​connection, ensuring that the cabinet door 13 remains closed under normal use and effectively resisting the interference of external factors on the internal components. Sliding grooves 205 are provided on the side of the sliding strip 201 that is far away from the sliding groove 202. Rotary balls 206 are also rotatably connected in the two sliding grooves 205 on the front side, which converts sliding friction into rolling friction, greatly reducing the friction force when the cabinet door 13 is opened and closed. This not only makes the operation easier and less labor-intensive, but also reduces the wear of components and extends the service life of the entire connection structure.

[0035] Reference Figure 1 and Figure 2 A lamp holder 15 is fixedly connected to the top front side of the door frame 1, and an alarm light 16 is fixedly connected to the front side of the lamp holder 15. When the fireproof roller shutter door 14 descends, the alarm light 16 will sound an alarm. A handle 17 is fixedly connected to the bottom front side of the cabinet door 13 for pulling the cabinet door 13. The handle 17 has multiple semi-circular grooves 18 on the front side of its interior to fit the fingers. Two diagonal braces 19 are fixedly connected to the bottom of the support plate 5. The bottom of the two diagonal braces 19 is fixedly connected to the top left end of the front side of the door frame 1 to increase the support of the support plate 5.

[0036] Specifically, when the fire-resistant roller shutter door 14 drops due to a fire signal, the alarm light 16 immediately sounds an alarm, alerting nearby personnel to the fire and facilitating timely evacuation. The handle 17 at the bottom front of the cabinet door 13 makes it easy for staff to pull and open the door. The multiple semi-circular grooves 18 on the front inside fit the fingers, improving grip comfort and ease of operation. The two diagonal braces 19 at the bottom of the support plate 5 are connected to the support plate 5 at one end and fixed to the top left end of the front of the door frame 1 at the other end. Through the principle of triangular stability structure, the support of the support plate 5 is effectively enhanced, ensuring the stable operation of the temperature detector 6 installed on it.

[0037] Reference Figure 2 and Figure 5 The bottom of the extra-grade fireproof rolling shutter door 14 is fixedly connected to a base 20, and the bottom of the base 20 is fixedly connected to a protective pad 21, which can fit the ground and prevent smoke from leaking out. The bottom of the cabinet door 13 is fixedly connected to a sealing tube 22. The bottom of the front side of the protective box 12 is provided with a sealing groove 23. The sealing tube 22 will be embedded in the sealing groove 23 to increase the sealing performance. The outer diameter of the two sliding strips 201 is smaller than the inner diameter of the sliding groove 202. The outer walls of the two rotating balls 206 are matched with the inside of the sliding groove 205.

[0038] Specifically, the base 20 at the bottom of the extra-grade fireproof roller shutter door 14 is paired with a protective pad 21 to form a tight bottom protection structure. The protective pad 21 is flexible and can fit tightly to the ground, effectively preventing smoke from escaping from the bottom gap of the roller shutter door and enhancing the fireproof separation effect. The sealing tube 22 at the bottom of the cabinet door 13 cooperates with the sealing groove 23 inside the protective box 12. When the cabinet door 13 is closed, the sealing tube 22 is precisely embedded in the sealing groove 23, further improving the sealing performance inside the protective box 12 and preventing external factors from affecting the fuse 9. The dimensions of the slide strip 201 and the slide groove 202, and the ball bearing 206 and the slide groove 205 are precisely matched, ensuring that the cabinet door 13 slides smoothly and that the structure is compact and stable.

[0039] Working principle: The protective cover 4 in the mounting groove 3 on the front side of the gantry 1 provides physical protection for the fire-resistant roller shutter door 14, ensuring its stable performance in non-fire conditions. The temperature detector 6 on the support plate 5 and the smoke sensor 7 on the front side of the gantry 1 monitor the ambient temperature and smoke concentration in real time. When the temperature detector 6 detects that the ambient temperature rises rapidly in a short time and reaches the preset threshold, or when the smoke sensor 7 detects that the smoke concentration exceeds the safe range, the response mechanism is triggered. The power supply 8 continuously supplies power to the system, and the heating tube 11 linked with the sensor heats up rapidly, causing the fuse 9 to melt quickly. After the fuse 9 melts, the fire-resistant roller shutter door 14, which is no longer restrained, automatically falls under the action of gravity, completing the fire separation and preventing the spread of fire. The alarm light 16 on the top of the front side of the gantry 1 receives the signal and immediately sounds an alarm to remind people in the vicinity that a fire has occurred. The protection box 12 and its cabinet door 13 provide protection for the fuse 9 throughout the process. Through the sealing design and the solid structure, the fuse 9 is not affected by external factors, maintaining the reliability and stability of the system and protecting the fire safety of the building in all aspects.

[0040] Furthermore, the sliding strips 201 on both sides of the cabinet door 13 and the sliding grooves 202 inside the protective box 12 form a guide structure. When the sliding strips 201 slide within the sliding grooves 202, they provide precise guidance for the opening and closing of the cabinet door 13, allowing the cabinet door 13 to move smoothly along a fixed trajectory. This ensures that personnel can easily open the cabinet door 13 to inspect and maintain the internal fuse 9. To prevent the cabinet door 13 from being opened accidentally, the latching fastener 203 on the front top of the protective box 12 and the pipe clamp 204 on the top of the cabinet door 13 interlock. When the cabinet door 13 is closed, the latching fastener 203 tightly engages with the pipe clamp 204, forming a secure connection that effectively resists external vibrations and impacts. To prevent accidental opening of the cabinet door 13 due to factors, the fuse 9 is always kept in a closed protective state to prevent external dust and moisture from interfering with its normal operation. To improve the operation performance of the cabinet door 13, a sliding groove 205 and a ball bearing 206 are provided between the slide bar 201 and the slide groove 202. The ball bearing 206 is embedded in the sliding groove 205. During the opening and closing of the cabinet door 13, the ball bearing 206 rolls, converting the original sliding friction into rolling friction, which greatly reduces the pulling force required for opening and closing the cabinet door 13, making the operation easier and less strenuous. At the same time, it reduces the wear between the slide bar 201 and the slide groove 202, effectively extending the service life of the cabinet door 13 connection structure and ensuring the long-term stable operation of the protection box 12.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-release mechanism for fire-resistant rolling shutter doors, comprising a door frame (1), characterized in that: The front side of the gantry (1) has an installation groove (3), and a protective cover (4) is fixedly connected to the rear side of the interior of the installation groove (3). A support plate (5) is fixedly connected to the top right end of the front side of the gantry (1), and a temperature detector (6) is fixedly connected to the top of the support plate (5). A smoke sensor (7) is fixedly connected to the upper left end of the front side of the gantry (1). A power supply (8) is fixedly connected to the middle left end of the front side of the gantry (1). A power supply (8) is fixedly connected to the lower left end of the front side of the gantry (1). The fuse (9) has two fixed brackets (10) fixedly connected to the lower left side of the front side of the gantry (1). Two heating tubes (11) are fixedly connected inside the two fixed brackets (10). A protective box (12) is fixedly connected to the lower left side of the front side of the gantry (1). A cabinet door (13) is provided on the front side of the inside of the protective box (12). A fireproof roller shutter door (14) is rotatably connected inside the protective cover (4). A sliding mechanism (2) is provided on both the left and right sides of the cabinet door (13).

2. The fire-resistant rolling shutter door quick-release mechanism according to claim 1, characterized in that: The sliding mechanism (2) includes two slide bars (201). The two slide bars (201) are fixedly connected to the left and right sides of the cabinet door (13). The left and right sides of the front of the protective box (12) are provided with sliding grooves (202). The front top of the protective box (12) is fixedly connected with two buckle fasteners (203). The top of the cabinet door (13) is fixedly connected with two pipe clamps (204). Sliding grooves (205) are provided between the opposite sides of the two slide bars (201) and between the adjacent sides of the two sliding grooves (202). The interior of the two sliding grooves (205) on the front side is rotatably connected with a ball bearing (206).

3. The fire-resistant rolling shutter door quick-release mechanism according to claim 1, characterized in that: A lamp holder (15) is fixedly connected to the top front side of the gantry (1), and an alarm light (16) is fixedly connected to the front side of the lamp holder (15).

4. The quick-release mechanism for fire-resistant rolling shutter doors according to claim 1, characterized in that: A handle (17) is fixedly connected to the bottom front side of the cabinet door (13), and a plurality of semi-circular grooves (18) are provided on the front side inside the handle (17).

5. The quick-release mechanism for fire-resistant rolling shutter doors according to claim 1, characterized in that: The bottom of the support plate (5) is fixedly connected to two diagonal braces (19), and the bottom of the two diagonal braces (19) is fixedly connected to the top left end of the front side of the gantry (1).

6. The quick-release mechanism for fire-resistant rolling shutter doors according to claim 1, characterized in that: The bottom of the super-grade fireproof rolling shutter door (14) is fixedly connected to a base (20), and the bottom of the base (20) is fixedly connected to a protective pad (21).

7. The fire-resistant rolling shutter door quick-release mechanism according to claim 1, characterized in that: A sealing tube (22) is fixedly connected to the bottom of the cabinet door (13), and a sealing groove (23) is provided at the bottom front side of the interior of the protective box (12).

8. The fire-resistant rolling shutter door quick-release mechanism according to claim 2, characterized in that: The outer diameter of both sliders (201) is smaller than the inner diameter of the groove (202), and the outer wall of both balls (206) matches the inside of the groove (205).

Images