Quick triggering type fireproof valve

Abstract

The utility model discloses a quick triggering type fireproof valve which comprises a valve body, and a fireproof cover is fixedly arranged at the bottom end of the outer wall of the valve body. A base of the temperature sensor is fixedly arranged on one side of the top end in the valve body; a base of the smoke detector is fixedly arranged on the other side of the top end in the valve body; and the protection assembly comprises a servo motor. According to the utility model, the temperature sensor, the smoke detector and the protection assembly are arranged, the temperature sensor and the smoke detector respectively monitor temperature and smoke in real time, dual monitoring is realized, and the fire damper is quickly triggered and closed under the action of the protection assembly, so that fire prevention and isolation are carried out in time at the early stage of a fire; fire spreading and growth are avoided; meanwhile, the two fireproof blades are arranged in the protection assembly, so that double-layer closed sealing can be achieved, and the fireproof isolation effect of the fireproof valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, specifically a quick-trigger fire damper. Background Technology

[0002] Fire dampers are temperature-controlled valves made of shape memory alloy. They are mainly used in situations where air ducts pass through floors, firewalls, computer room partitions, etc., to prevent fire and toxic high-temperature smoke from spreading to other places through the air ducts during a fire, thus playing a fireproof isolation role. They are normally in the open state and do not affect the normal ventilation function.

[0003] In real life, most fire dampers use a fusible link type automatic closing mechanism, where the fusible link breaks when the temperature reaches 70 degrees Celsius, causing the fire damper blades to close automatically. However, in the early stages of a fire, when the temperature has not yet reached 70 degrees Celsius, the fire damper remains open, which prevents timely fire isolation and increases the spread of the fire. Therefore, a rapid-trigger type fire damper is needed. Utility Model Content

[0004] The purpose of this invention is to provide a fast-trigger fire damper to solve the problem mentioned in the background art, where most fire dampers use a fusible disc type for automatic closure. In the early stages of a fire, before the temperature reaches 70 degrees Celsius, the fire damper remains open, which prevents timely fire isolation and increases the risk of fire spread.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a fast-trigger fire damper, comprising:

[0007] The valve body has a fireproof cover fixedly installed at the bottom of its outer wall.

[0008] A temperature sensor, the base of which is fixedly mounted on one side of the top of the valve body;

[0009] A smoke detector, wherein the base of the smoke detector is fixedly mounted on the other side of the top of the valve body;

[0010] The protective component includes a servo motor, the output end of which is fixedly provided with a first fireproof blade, the bottom end of the outer wall of the first fireproof blade is fixedly provided with a first transmission gear, the tooth edge of the first transmission gear is meshed with a rack, one side of the tooth edge of the rack is meshed with a second transmission gear, and the inner wall of the second transmission gear is fixedly provided with a second fireproof blade.

[0011] Furthermore, the bottom ends of the first fireproof blade and the second fireproof blade are respectively connected to the inner bottom bearing of the fireproof cover.

[0012] Furthermore, a through groove is provided on one side of the fireproof cover, and a lever is slidably provided on the inner side of the through groove. One end of the lever is fixedly set on one side of the rack.

[0013] Furthermore, a protective cover is fixedly provided on one side of the top of the outer wall of the valve body, and the protective cover is located outside the servo motor.

[0014] Furthermore, a storage box is fixedly provided at the middle of the top of the outer wall of the valve body. An opening and closing assembly is provided on one side of the storage box. The opening and closing assembly includes a connecting rod. One side of the outer wall of the connecting rod penetrates one side of the storage box. A spring is sleeved on the other side of the outer wall of the connecting rod. A contact block is fixedly provided at one end of the connecting rod, and a partition is fixedly provided at the other end of the connecting rod.

[0015] Furthermore, the storage box and the valve body are internally connected.

[0016] Furthermore, one end of the spring is fixedly connected to one side of the storage box, and the other end of the spring is fixedly connected to one end of the contact block.

[0017] This utility model has the following beneficial effects:

[0018] This invention incorporates a temperature sensor, a smoke detector, and a protective component. The temperature sensor and smoke detector monitor temperature and smoke in real time, respectively, achieving dual monitoring. Together with the protective component, they quickly trigger the closure of the fire damper, thus providing timely fire isolation in the early stages of a fire and preventing the fire from spreading. At the same time, the protective component is equipped with two fireproof blades, which achieves a double-layer closure and seal, improving the fire isolation effect of the fire damper.

[0019] Based on the aforementioned beneficial effects, by providing a storage box and an opening and closing component, when the protective component is closed and comes into contact with the opening and closing component, it will drive the opening and closing component to open, causing the fire extinguishing dry powder in the storage box to fall downwards onto the valve body for auxiliary fire prevention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the protective component structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the opening and closing component structure of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Valve body; 2. Temperature sensor; 3. Smoke detector; 4. Protective components; 5. Fireproof cover; 6. Protective cover; 7. Storage box; 8. Opening and closing components;

[0026] 401. Servo motor; 402. First fireproof blade; 403. First transmission gear; 404. Rack; 405. Second transmission gear; 406. Second fireproof blade; 407. Lever;

[0027] 501. Through groove;

[0028] 801. Connecting rod; 802. Spring; 803. Contact block; 804. Partition plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Please see Figure 1-3 As shown, this utility model is a quick-trigger fire damper, comprising:

[0032] A fireproof cover 5 is fixedly installed at the bottom of the outer wall of valve body 1;

[0033] Valve body 1 is installed on the ventilation duct and is mainly used to isolate high-temperature toxic fumes during a fire to prevent the fire from spreading.

[0034] Temperature sensor 2, the base of temperature sensor 2 is fixedly installed on one side of the top of valve body 1;

[0035] Temperature sensor 2 is used to monitor the temperature in the ventilation duct. The model of temperature sensor 2 is PT1000. Its principle is mainly based on the law of the physical properties of different materials changing with temperature. The temperature value is calculated by measuring the changes in these properties.

[0036] Smoke detector 3, the base of smoke detector 3 is fixedly installed on the other side of the top of valve body 1;

[0037] Smoke detector 3 is used to monitor smoke concentration to achieve fire pre-tensioning. The smoke detector 3 model is LZ-1902. Its principle is to use light scattering technology. After smoke particles enter the detection cavity, they scatter the laser light source. The light receiver detects the signal change and alarms. Temperature sensor 2 and smoke detector 3 are installed at the windward end of valve body 1.

[0038] The protective component 4 includes a servo motor 401. A first fireproof blade 402 is fixedly provided at the output end of the servo motor 401. A first transmission gear 403 is fixedly provided at the bottom end of the outer wall of the first fireproof blade 402. A rack 404 is meshed on the tooth edge of the first transmission gear 403. A second transmission gear 405 is meshed on one side of the tooth edge of the rack 404. A second fireproof blade 406 is fixedly provided on the inner wall of the second transmission gear 405.

[0039] The bottom end of the servo motor 401 is fixedly installed at the top of the outer wall of the valve body 1. The servo motor 401 is used to provide driving force for opening and closing the first fireproof blade 402. The first fireproof blade 402, in conjunction with the second fireproof blade 406, can achieve double sealing and improve the smoke prevention effect of the valve body 1.

[0040] The bottom ends of the first fireproof blade 402 and the second fireproof blade 406 are respectively connected to the inner bottom bearing of the fireproof cover 5. The bottom ends of the first fireproof blade 402 and the second fireproof blade 406 penetrate the inner bottom of the valve body 1. The top end of the second fireproof blade 406 is connected to the inner top bearing of the valve body 1. The top end of the first fireproof blade 402 penetrates the inner top of the valve body 1 to the outside of the valve body 1.

[0041] A through groove 501 is provided on one side of the fireproof cover 5, and a lever 407 is slidably provided on the inner side of the through groove 501. One end of the lever 407 is fixedly provided on one side of the rack 404.

[0042] The through groove 501 can limit the movement of the lever 407, allowing it to move horizontally along the through groove 501. The height of the through groove 501 is matched with the height of the bottom end of the lever 407 and is less than the height of the rack 404, thus preventing the rack 404 from moving out of the fireproof cover 5. The lever 407 is U-shaped, and the top of one side is sloping. The rack 404 is always in contact with the transmission gear 403 during movement, and its two ends do not contact the inner wall of the fireproof cover 5, thus avoiding motion interference.

[0043] A protective cover 6 is fixedly provided on one side of the top of the outer wall of the valve body 1. The protective cover 6 is located outside the servo motor 401.

[0044] The protective cover 6 protects the servo motor 401.

[0045] Working principle: The temperature and smoke in the duct connected to the valve body 1 are monitored in real time by temperature sensor 2 and smoke detector 3. When a fire occurs and causes changes in temperature and smoke in the duct, temperature sensor 2 and smoke detector 3 detect and issue an alarm. At this time, servo motor 401 drives the first fireproof blade 402 to rotate and close. The rotation of the first fireproof blade 402 drives the first transmission gear 403 to rotate. The rotation of the first transmission gear 403 drives the second transmission gear 405 to rotate through rack 404, which in turn drives the second fireproof blade 406 to rotate and close.

[0046] This step allows for dual monitoring via temperature sensor 2 and smoke detector 3, which, in conjunction with the protective component 4, quickly triggers the closure of the fire damper. This enables timely fire isolation in the early stages of a fire, preventing the fire from spreading and growing.

[0047] Please see Figure 1-3 As shown, this embodiment, based on the above embodiment, further includes:

[0048] A storage box 7 is fixedly provided at the middle of the top of the outer wall of the valve body 1. An opening and closing component 8 is provided on one side of the storage box 7. The opening and closing component 8 includes a connecting rod 801. One side of the outer wall of the connecting rod 801 passes through one side of the storage box 7. A spring 802 is sleeved on the other side of the outer wall of the connecting rod 801. A contact block 803 is fixedly provided at one end of the connecting rod 801. A partition plate 804 is fixedly provided at the other end of the connecting rod 801.

[0049] The storage box 7 contains fire extinguishing dry powder prepared from KHCO3, which can be used for auxiliary fire prevention. One side of the partition 804 is interlocked with the other side of the storage box 7. The contact block 803 is hemispherical on the outer side, which makes it easy for the lever 407 to move after contacting it.

[0050] The storage box 7 and the valve body 1 are internally connected;

[0051] Both the storage box 7 and the protective cover 6 are designed to withstand high temperatures;

[0052] One end of the spring 802 is fixedly connected to one side of the storage box 7, and the other end of the spring 802 is fixedly connected to one end of the contact block 803;

[0053] Working principle: When the first fireproof blade 402 rotates and closes, it drives the rack 404 to move. The movement of the rack 404 drives the lever 407 to move. When the lever 407 contacts the contact block 803, as the lever 407 continues to move, it will drive the contact block 803 to move towards the storage box 7. The movement of the contact block 803 drives the partition 804 to move outward through the connecting rod 801. At this time, the bottom of the storage box 7 opens, and the fire extinguishing dry powder in the storage box 7 is sprinkled downward between the two fireproof blades.

[0054] This step allows the opening and closing component 8 in the storage box 7 to be opened while the fireproof blades are closed for fire isolation, so that the fire extinguishing dry powder in the storage box 7 can be sprinkled downwards onto the valve body 1 for auxiliary fire prevention.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-trigger fire damper, characterized in that, include: The valve body (1) has a fireproof cover (5) fixedly installed at the bottom of the outer wall of the valve body (1). Temperature sensor (2), the base of which is fixedly installed on one side of the top of the valve body (1); Smoke detector (3), the base of which is fixedly installed on the other side of the top of the valve body (1); The protective component (4) includes a servo motor (401), the output end of which is fixedly provided with a first fireproof blade (402), the bottom end of the outer wall of the first fireproof blade (402) is fixedly provided with a first transmission gear (403), the tooth edge of the first transmission gear (403) is meshed with a rack (404), one side of the tooth edge of the rack (404) is meshed with a second transmission gear (405), and the inner wall of the second transmission gear (405) is fixedly provided with a second fireproof blade (406).

2. The quick-trigger fire damper according to claim 1, characterized in that: The bottom ends of the first fireproof blade (402) and the second fireproof blade (406) are respectively connected to the inner bottom bearing of the fireproof cover (5).

3. The quick-trigger fire damper according to claim 1, characterized in that: The fireproof cover (5) has a through groove (501) on one side, and a lever (407) is slidably provided on the inner side of the through groove (501). One end of the lever (407) is fixedly set on one side of the rack (404).

4. The quick-trigger fire damper according to claim 1, characterized in that: A protective cover (6) is fixedly provided on one side of the top of the outer wall of the valve body (1), and the protective cover (6) is located outside the servo motor (401).

5. The quick-trigger fire damper according to claim 1, characterized in that: A storage box (7) is fixedly provided at the middle of the top of the outer wall of the valve body (1). An opening and closing assembly (8) is provided on one side of the storage box (7). The opening and closing assembly (8) includes a connecting rod (801). One side of the outer wall of the connecting rod (801) passes through one side of the storage box (7). A spring (802) is sleeved on the other side of the outer wall of the connecting rod (801). A contact block (803) is fixedly provided at one end of the connecting rod (801). A partition plate (804) is fixedly provided at the other end of the connecting rod (801).

6. The quick-trigger fire damper according to claim 5, characterized in that: The storage box (7) and the valve body (1) are internally connected.

7. The quick-trigger fire damper according to claim 5, characterized in that: One end of the spring (802) is fixedly connected to one side of the storage box (7), and the other end of the spring (802) is fixedly connected to one end of the contact block (803).

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