70 DEG C fireproof valve

Abstract

The utility model belongs to the technical field of fireproof valves, and discloses a 70 DEG C fireproof valve which comprises a main body, a motor is fixedly arranged on the top face of the main body, a small gear is fixedly arranged at the tail end of a main shaft of the motor, an auxiliary gear is connected to the outer side of the small gear in a meshed mode, and a long shaft is rotationally arranged in the auxiliary gear. Fan blades are fixedly connected to the outer side of the long shaft and rotate in the main body, main gears are connected to the two sides of an auxiliary gear in a meshed mode, the long shaft rotates in the main gears, a controller is fixedly arranged on the top face of the main body, and a detector is fixedly arranged on the bottom face of the controller. The device has the advantages that the valve can be automatically closed when it is sensed that the external temperature reaches a certain height, so that flames are blocked, fire spreading is prevented, and escape time is prolonged for people in a fire scene, harm caused by fire to people is reduced, and physical and mental safety of people is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire dampers, and specifically relates to a 70°C fire damper. Background Art

[0002] The 70°C fire damper is used on fire-fighting pipelines; it is normally open and closes in case of a fire, interlocking with the fan to shut down the fan. Its function is that the temperature fuse melts at 70°C to close the valve and output a valve closing signal. However, some of the existing fire dampers on the market still need to manually close the valve to block the fire. Therefore, a protective valve that can automatically sense the temperature and then automatically close the valve is needed.

[0003] At the same time, the patent specification with the publication number CN 220957107 U discloses a high-barrier fire damper, which includes a fire damper body. A blade is provided in the fire damper body. A control box is provided at the middle position of the top surface of the fire damper body, and an operating rod is provided at the middle position of the top surface of the control box.

[0004] However, in the implementation of the related technology, it is found that the above high-barrier fire damper has the following problems: the fire damper needs to be manually operated. In case of a fire, the first thing should be to escape from the fire scene instead of manually closing the valve. What if the fire gets bigger? It will not only lose the best escape time but also bring a lot of danger to the on-site personnel. Moreover, people at the fire scene are very likely to have difficulty performing correct escape operations under high stress.

[0005] Therefore, a 70°C fire damper is proposed for the above problems. Content of the Utility Model

[0006] To solve the problems raised in the above background art, the utility model provides a 70°C fire damper, which has the advantages that it will automatically close the valve when it senses that the external temperature reaches a certain level, thereby blocking the flame, preventing the spread of the fire, and increasing the escape time for people at the fire scene, thus reducing the harm caused by the fire to people and protecting people's physical and mental safety.

[0007] To achieve the above object, the utility model provides the following technical solution: a 70°C fire damper, including a main body. A motor is fixedly arranged on the top surface of the main body. The end of the main shaft of the motor is fixedly provided with a small gear. The outer side of the small gear is meshed with a secondary gear. A long shaft is rotatably arranged inside the secondary gear. A fan blade is fixedly connected to the outer side of the long shaft, and the fan blade rotates inside the main body. Both sides of the secondary gear are meshed with a main gear, and the long shaft rotates inside the main gear.

[0008] Preferably, the material of the main body is Al-Cu-Mg or Al-Zn-Mg-Cu, and its tensile strength is greater than 480 MPa.

[0009] Preferably, a controller is fixedly disposed on the top surface of the main body, and a detector is fixedly disposed on the bottom surface of the controller.

[0010] Preferably, an alarm is fixedly provided on one side of the controller, and the controller is electrically connected to the motor.

[0011] Preferably, a fixed angle is fixedly provided on the outer side of the main body, a mounting plate is fixedly provided on the outer side of the fixed angle, and the mounting plate is fitted with the main body.

[0012] Preferably, a fixing plate is slidably provided inside the mounting plate, a threaded knob is slidably provided inside the fixing plate, a clamping plate is threadedly connected to the other end of the threaded knob, and the clamping plate is fitted with the fixing plate.

[0013] Preferably, a filter screen is embedded on the other side of the main body, and a handle is fixedly provided on the top surface of the filter screen.

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

[0015] The utility model sets the threshold value of the temperature detected by the detector through the controller, so that when the ambient temperature reaches the set value, the motor is automatically controlled to rotate, the motor drives the small gear to start rotating, the small gear drives the sub-gear and the main gear also rotates, and finally drives the sub-gear and the fan blades on the outside of the long shaft to start rotating, thereby closing the valve and blocking the flame. The device will automatically close the valve when it senses that the external temperature has reached a certain height, thereby blocking the flame and preventing the fire from spreading, and increasing the escape time for people at the fire scene, reducing the harm caused by the fire to people, and protecting people's physical and mental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a 70℃ fire damper proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the splint installation structure proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the controller installation structure proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the fan blade installation structure proposed by the utility model.

[0020] In the figure: 1. Main body; 2. Mounting plate; 3. Filter; 4. Fixed angle; 5. Clamp; 6. Fixed plate; 7. Threaded knob; 8. Controller; 9. Motor; 10. Pinion; 11. Main gear; 12. Sub-gear; 13. Long shaft; 14. Fan blades; 15. Handle. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 4 shown, the present invention provides a 70°C fire damper, which includes a main body 1. A motor 9 is fixedly arranged on the top surface of the main body 1. A small gear 10 is fixedly arranged at the end of the main shaft of the motor 9. A secondary gear 12 is meshed with the outer side of the small gear 10. A long shaft 13 is rotatably arranged inside the secondary gear 12. A fan blade 14 is fixedly connected to the outer side of the long shaft 13, and the fan blade 14 rotates inside the main body 1. The two sides of the secondary gear 12 are both meshed with a main gear 11, and the long shaft 13 rotates inside the main gear 11. The motor 9 drives the small gear 10 to start rotating, the small gear 10 drives the secondary gear 12 and at the same time the main gear 11 also rotates accordingly, and finally drives the secondary gear 12 and the fan blade 14 on the outer side of the long shaft 13 to start rotating, thereby closing the valve and blocking the flame, realizing the automatic closing of the fire damper at the fire scene, thereby preventing the spread of the fire. Compared with some fire dampers on the market that need to manually close the valve, it increases more safety, reduces the harm caused by the fire to people, and protects people's safety.

[0023] Specifically, the material of the main body 1 is Al-Cu-Mg or Al-Zn-Mg-Cu, and its tensile strength is greater than 480 MPa. Such high-strength aluminum alloys have good wear resistance and fire resistance, which can not only ensure its service life, but also ensure its fire prevention effect.

[0024] Further, a controller 8 is fixedly arranged on the top surface of the main body 1, and a detector is fixedly arranged on the bottom surface of the controller 8. The detector detects the temperature threshold through the controller 8, and then the detector detects the external temperature. When the temperature reaches the specified value, it indicates that there is an abnormal situation.

[0025] Still further, an alarm is fixedly arranged on one side of the controller 8, and the controller 8 is electrically connected to the motor 9. When the detector senses an abnormal situation, the alarm will issue an alarm to remind the people on the scene, and at the same time start the motor 9 to work.

[0026] It is worth noting that a fixing angle 4 is fixedly arranged on the outer side of the main body 1, and a mounting plate 2 is fixedly arranged on the outer side of the fixing angle 4, and the mounting plate 2 is attached to the main body 1. The fixing angle 4 strengthens the connection between the mounting plate 2 and the main body 1, and increases the overall stability of the device.

[0027] It is worth noting that a fixed plate 6 is slidingly arranged inside the mounting plate 2, and a threaded knob 7 is slidingly arranged inside the fixing plate 6. The other end of the threaded knob 7 is threadedly connected to a clamping plate 5, and the clamping plate 5 is fitted with the fixed plate 6. The threaded knob 7 drives the clamping plate 5 to move, and then the distance between the clamping plates 5 is adjusted according to the specific conditions of the installation position, thereby facilitating the installation of the device.

[0028] It is worth mentioning that a filter screen 3 is embedded on the other side of the main body 1, and a handle 15 is fixed on the top surface of the filter screen 3. The function of the filter screen 3 is to prevent some debris from entering the interior of the fire damper so as not to hinder the operation of the fire damper at a critical moment. At the same time, the handle 15 facilitates the disassembly of the filter screen 3.

[0029] Among them, the motor 9 and the controller 8 are prior art and will not be described in detail. At the same time, the utility model also includes a power supply and a switch, which are not the main technical points of this patent and will not be described in detail. The "front, back, left, and right" perspectives of the device are as follows: Figure 1 The direction shown in the figure is used as the reference.

[0030] Working principle and process:

[0031] Before using a 70°C fire damper, first install it. Mounting plates 2 are installed on both sides of the main body 1, and then the main body 1 and the mounting plates 2 are fixed by fixing angles 4. Then rotate the threaded knob 7, which drives the clamping plate 5 to start moving. According to the specific situation of the installation position, adjust the distance between the clamping plates 5. Here, the function of the fixing plate 6 is to reinforce the entire installation assembly. Vertical grooves are also provided on the surface of the mounting plate 2, and the installation assembly can also be adjusted up and down. Then a filter screen 3 is installed on the other side. The function of the filter screen 3 is to block some debris from entering the interior of the fire damper to prevent it from obstructing the operation of the fire damper at critical moments. A handle 15 is fixedly arranged on the outside of the filter screen 3, which facilitates the disassembly of the filter screen 3. Then set the temperature threshold for the detector to detect through the controller 8. An alarm is fixedly arranged on one side of the controller 8. When the detector senses an abnormal situation, the alarm will sound to alert people on the scene. At the same time, control the motor 9 to rotate. Subsequently, the motor 9 drives the small gear 10 to start rotating, and the small gear 10 drives the secondary gear 12 while the main gear 11 also rotates accordingly. Finally, drive the secondary gear 12 and the long shaft 13 to rotate, thereby closing the fan blade 14 to block the flame. Here, the materials of the main body 1 and the fan blade 4 are Al-Cu-Mg or Al-Zn-Mg-Cu, and their tensile strength is greater than 480 MPa. Such high-strength aluminum alloys have good wear resistance and fire resistance, which can not only ensure their service life but also ensure their fire prevention effect. This device will automatically close the valve when it senses that the external temperature reaches a certain level, thereby blocking the flame, preventing the spread of fire, increasing the escape time for people at the fire scene, reducing the harm caused by the fire to people, and protecting people's physical and mental safety.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 70°C fire damper, comprising a main body (1), characterized in that: A motor (9) is fixedly arranged on the top surface of the main body (1), a pinion (10) is fixedly arranged at the end of the main shaft of the motor (9), the outer side of the pinion (10) is meshingly connected to a sub-gear (12), a long shaft (13) is rotatably arranged inside the sub-gear (12), a fan blade (14) is fixedly connected to the outer side of the long shaft (13), and the fan blade (14) rotates inside the main body (1), both sides of the sub-gear (12) are meshingly connected to the main gear (11), and the long shaft (13) rotates inside the main gear (11).

2. The 70°C fire damper according to claim 1, characterized in that: The material of the main body (1) is Al-Cu-Mg or Al-Zn-Mg-Cu, and its tensile strength is greater than 480 MPa.

3. A 70°C fire damper according to claim 1, characterized in that: A controller (8) is fixedly arranged on the top surface of the main body (1), and a detector is fixedly arranged on the bottom surface of the controller (8).

4. The 70°C fire damper according to claim 3, characterized in that: An alarm is fixedly arranged on one side of the controller (8), and the controller (8) is electrically connected to the motor (9).

5. A 70°C fire damper according to claim 1, characterized in that: A fixed angle (4) is fixedly provided on the outer side of the main body (1), a mounting plate (2) is fixedly provided on the outer side of the fixed angle (4), and the mounting plate (2) is fitted with the main body (1).

6. The 70°C fire damper according to claim 5, characterized in that: A fixing plate (6) is slidably disposed inside the mounting plate (2), a threaded knob (7) is slidably disposed inside the fixing plate (6), the other end of the threaded knob (7) is threadedly connected to a clamping plate (5), and the clamping plate (5) is fitted with the fixing plate (6).

7. A 70°C fire damper according to claim 1, characterized in that: A filter screen (3) is embedded on the other side of the main body (1), and a handle (15) is fixedly provided on the top surface of the filter screen (3).

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