Electrically powered analog modulating fire damper actuator

Abstract

The application discloses a kind of electric analog quantity regulating fire damper actuator, belong to fire damper technical field, including valve body, the top of the valve body is fixedly installed with top shell, the top of the top shell is fixedly installed with actuator, the both sides outer walls of the valve body are fixedly installed with installation side plate, the lower surface of the valve body is provided with multiple air holes;In the application, by being provided with actuator, first fire prevention mechanism and second fire prevention mechanism, the fire damper actuator can be realized through the analog control signal of BA system, the continuous adjustment of first fire prevention mechanism and second fire prevention mechanism is realized, the accurate control of flow in pipeline is realized, and temperature sensor is arranged on the mechanism, when fire occurs, the temperature in pipeline reaches preset temperature, temperature sensor can detect high temperature data, actuator can control first fire prevention mechanism and second fire prevention mechanism to automatically close, realize the automatic control of fire damper, greatly improve the application effect and intelligent degree of the mechanism.

Description

Technical Field

[0001] This invention belongs to the field of fire damper technology, and particularly relates to an electric analog quantity regulating fire damper actuator. Background Technology

[0002] Currently, with the continuous increase in various new types of buildings, ventilation ducts and mechanical smoke exhaust systems in buildings require the installation of numerous fire dampers. A fire damper is a temperature-controlled valve made of shape-memory alloy that closes using gravity, a spring mechanism, or the deformation of the shape-memory alloy. Depending on their function and purpose, fire dampers can be classified into several types, such as smoke exhaust dampers and smoke exhaust fire dampers. These valves are typically installed in ventilation or smoke exhaust ducts to quickly respond to and close the duct in the event of a fire, preventing the spread of fire and smoke.

[0003] Chinese patent (CN111089177B) discloses a fire damper, including a valve body, which is part of a ventilation channel. Multiple parallel blade shafts are fixed inside the valve body, and each blade shaft fixes one blade. When these blades are parallel, it is in a ventilation state. When these blades overlap in sequence, it is in a sealed state. One end of a sealing strip is fixed at the overlap of the blades, and the other end of the sealing strip extends away from the blade to form a free end. The sealing strip is a metal foil. When two blades overlap, the free end of the sealing strip flips towards its fixed end, and there is a certain distance between the free end and the fixed end. Compared to existing technologies, this structure features a sealing sheet made of metal foil at the blade overlap. When closure is required, air pressure flips the free end towards the fixed end, causing it to adhere tightly to another blade, thus achieving a seal. This provides a better sealing effect, and the metal can withstand higher temperatures. Currently, most fire dampers in the industry use their actuators as normally open components. In the event of a fire, the internal temperature rod melts, the mechanism's turntable disengages from the slot, and the fire damper plate closes under the action of a torsion spring. The actuator cannot continuously adjust the fire damper plate. If it is necessary to adjust the airflow in the pipeline, an additional airflow regulating valve system must be added to the pipeline. This increases the cost of the valve body and the ventilation resistance in the pipeline, resulting in poor practical application performance. To solve these problems, there is an urgent need for an electrically analog adjustable fire damper actuator. Summary of the Invention

[0004] The purpose of this invention is to address the problem that most fire damper actuators in the industry today are simply used as normally open components. When a fire occurs, the internal temperature rod melts, the mechanism's turntable disengages from the slot, and the fire damper plate closes under the action of a torsion spring. The actuator cannot continuously adjust the fire damper plate. If it is necessary to adjust the airflow in the pipeline, an additional airflow regulating valve system needs to be added to the pipeline, which increases the cost of the valve body and the ventilation resistance in the pipeline, resulting in poor practical application performance. Therefore, this invention proposes an electrically analog adjustable fire damper actuator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electric analog quantity regulating fire damper actuator, comprising a valve body, a top shell fixedly installed on the top of the valve body, an actuator fixedly installed on the top of the top shell, mounting side plates fixedly installed on both outer walls of the valve body, and multiple air holes provided on the lower surface of the valve body;

[0006] The actuator is equipped with an adjustment motor, and a first fireproof mechanism is provided at one end of the output shaft of the adjustment motor. An air guide assembly and a second fireproof mechanism are rotatably installed in the top shell cavity of the valve body. The first fireproof mechanism and the second fireproof mechanism are used to block smoke and fire.

[0007] By adopting the above scheme, and by setting up an actuator, a first fire-prevention mechanism, and a second fire-prevention mechanism, the fire damper actuator can achieve continuous adjustment of the first and second fire-prevention mechanisms through the analog control signal of the BA system, realizing precise control of the flow rate in the pipeline. Furthermore, a temperature sensor is installed on the mechanism. When a fire occurs and the temperature in the pipeline reaches the preset temperature, the temperature sensor can detect high temperature data, and the actuator can control the first and second fire-prevention mechanisms to automatically close, realizing automatic control of the fire damper, which greatly improves the application effect and intelligence level of the mechanism.

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

[0009] The first fireproof mechanism includes a mounting shaft, on the outside of which a drive pulley and a drive gear are fixedly mounted. A fireproof damper plate is fixedly mounted at the bottom end of the mounting shaft. Multiple oblique air channels are provided on the outside of the fireproof damper plate. An airflow turbulence component is fixedly mounted inside the oblique air channels.

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

[0011] Four airflow turbulence components are arranged in parallel to each other. Each airflow turbulence component includes a mounting shaft seat, which is fixedly installed inside the inclined air duct. The mounting shaft seat has a rotating hole inside, and a turbulence shaft is rotatably installed in the rotating hole.

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

[0013] A turbulence vane is fixedly installed on the outer surface of the turbulence shaft, and the turbulence vane is located inside the inclined wind duct.

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

[0015] The fire damper plate has a mounting groove on its top surface. A cleaning component is installed inside the mounting groove. The cleaning component includes a built-in spring, which is fixedly installed inside the mounting groove.

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

[0017] A cleaning pad is fixedly installed at one end of the built-in spring. The cleaning pad is slidably connected to the mounting top groove, and the outer surface of the cleaning pad is in close contact with the outer surface of the top shell.

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

[0019] The air guide assembly includes an air guide shaft, which is rotatably installed in a rotating hole on the bottom inner wall of the top shell. A driven pulley and an inclined blade are fixedly installed on the outside of the air guide shaft, and the drive pulley and the driven pulley are connected by a transmission belt.

[0020] Furthermore, by providing a matching air guide assembly and an airflow turbulence assembly, when the actuator controls the first and second fire-resistant mechanisms to adjust freely, the drive pulley can rotate, which in turn drives the driven pulley to rotate via the transmission belt. The oblique blades can rotate synchronously, and the oblique blades turbulent the airflow. The airflow can be discharged through the air holes. At the same time, when the first and second fire-resistant mechanisms deflect, the airflow can flow quickly through the oblique air channels, and the turbulence blades can be driven to rotate, further improving the flow rate and flow effect of the airflow in the valve body, and further improving the practical application effect of this structure.

[0021] As a further description of the above technical solution:

[0022] An internal guide rail is fixedly installed inside the top cavity of the valve body. A movable rack is slidably installed on the internal guide rail. A puncture needle is fixedly installed at one end of the movable rack. A high-pressure airbag is fixedly installed on the inner wall of the valve body. The high-pressure airbag is filled with high-pressure carbon dioxide gas and fire extinguishing powder particles.

[0023] Furthermore, by incorporating a high-pressure airbag and a moving rack, when the first and second fire-prevention mechanisms are closed, the mounting shaft drives the drive gear to rotate. As the drive gear rotates, it moves the moving rack laterally, and the puncture needle moves laterally simultaneously. When the first and second fire-prevention mechanisms fully close the valve body, the puncture needle moves laterally to pierce the high-pressure airbag. Upon puncture, the high-pressure airbag bursts, carrying out the high-pressure carbon dioxide gas and extinguishing powder particles inside. These particles are then discharged through multiple vents in the valve body, providing stable extinguishing and control of the flames surrounding the valve body. This design enables the automatic discharge of extinguishing gas and powder when the actuator controls the first and second fire-prevention mechanisms to close automatically, thereby improving fire control around the valve body, preventing rapid fire spread, and providing ample time for fire suppression, thus enhancing the effectiveness of the mechanism.

[0024] As a further description of the above technical solution:

[0025] One end of the puncture needle is located on one side of the high-pressure airbag, and the drive gear and the moving rack are meshed with each other. The first fireproof mechanism and the second fireproof mechanism have the same size.

[0026] As a further description of the above technical solution:

[0027] The actuator is equipped with a signal receiver and a microcontroller. The valve body is equipped with multiple temperature sensors. The actuator enables continuous adjustment so that the first fire-resistant mechanism and the second fire-resistant mechanism are in different positions. The actuator outputs analog signals and opening / closing signals for the first fire-resistant mechanism and the second fire-resistant mechanism.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] In this invention, by incorporating an actuator, a first fire-prevention mechanism, and a second fire-prevention mechanism, the fire damper actuator can achieve continuous adjustment of the first and second fire-prevention mechanisms via analog control signals from a BA system, enabling precise control of the flow rate within the pipeline. Furthermore, a temperature sensor is installed on the mechanism. When a fire occurs and the temperature inside the pipeline reaches a preset temperature, the temperature sensor can detect high-temperature data, allowing the actuator to control the first and second fire-prevention mechanisms to automatically close, thus achieving automatic control of the fire damper. This significantly improves the application effect and intelligence level of the mechanism.

[0030] In this invention, a high-pressure airbag and a moving rack are installed inside. When the first and second fire-prevention mechanisms are controlled to close, the mounting shaft can drive the drive gear to rotate. When the drive gear rotates, it can drive the moving rack to move laterally, and the puncture needle can move laterally synchronously. When the first and second fire-prevention mechanisms completely close the valve body, the puncture needle moves laterally to puncture the high-pressure airbag. After the high-pressure airbag is punctured, it bursts, and the high-pressure carbon dioxide gas and extinguishing powder particles inside can be carried out. Finally, they are discharged through multiple air holes in the valve body, which can stably extinguish and control the flames in the environment surrounding the valve body. Through this design, when the actuator controls the first and second fire-prevention mechanisms to automatically close, the extinguishing gas and powder can be automatically discharged, thereby improving the fire control in the environment surrounding the valve body, preventing the rapid spread of fire, creating more time for fire extinguishing, and improving the application effect of the mechanism.

[0031] In this invention, by providing a matching air guide assembly and an airflow turbulence assembly, when the actuator controls the first and second fire-resistant mechanisms to freely adjust, the drive pulley can rotate, which in turn drives the driven pulley to rotate via the transmission belt. The oblique blades can rotate synchronously, and the oblique blades turbulent the airflow. The airflow can be discharged through the air holes. At the same time, when the first and second fire-resistant mechanisms deflect, the airflow can flow quickly through the oblique air grooves, and the turbulence blades can be driven to rotate, further improving the flow rate and flow effect of the airflow in the valve body, and further improving the practical application effect of this structure. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of an electric analog quantity regulating fire damper actuator.

[0033] Figure 2 This is a three-dimensional structural diagram of an electric analog quantity regulating fire damper actuator from another angle.

[0034] Figure 3 This is an exploded three-dimensional structural diagram of an electric analog quantity regulating fire damper actuator.

[0035] Figure 4 This is a three-dimensional structural diagram of the combination of fire-resistant mechanism and air guide component in an electric analog quantity regulating fire damper actuator.

[0036] Figure 5 This is an exploded three-dimensional structural diagram of the fire-prevention mechanism and actuator in an electric analog quantity regulating fire valve actuator.

[0037] Figure 6 This is an exploded three-dimensional structural diagram of the fire-prevention mechanism and the moving rack in an electric analog quantity regulating fire-prevention valve actuator.

[0038] Figure 7This is an exploded three-dimensional structural diagram of the fire-prevention mechanism in an electric analog quantity regulating fire valve actuator.

[0039] Figure 8 This is a three-dimensional structural diagram of the airflow turbulence component in the actuator of an electrically controlled analog fire damper.

[0040] Figure 9 This is a three-dimensional structural diagram of the cleaning component in the actuator of an electrically controlled analog fire damper.

[0041] Figure 10 This is a three-dimensional structural diagram of the air guide component in the actuator of an electrically controlled analog fire damper.

[0042] Legend:

[0043] 1. Actuator; 2. Top shell; 3. Mounting side plate; 4. Valve body; 5. Air vent; 6. First fireproof mechanism; 61. Drive belt; 62. Drive pulley; 63. Mounting shaft; 64. Drive gear; 65. Fireproof valve plate; 66. Cleaning assembly; 661. Cleaning pad; 662. Built-in spring; 67. Mounting top groove; 68. Angled air duct; 69. Airflow turbulence assembly; 691. Turbine shaft; 692. Mounting shaft seat; 693. Turbine blade; 7. Built-in guide rail; 8. High-pressure airbag; 9. Air guide assembly; 91. Air guide shaft; 92. Driven pulley; 93. Angled blade; 10. Moving rack; 11. Puncture needle; 12. Second fireproof mechanism. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figures 1-10 The present invention provides a technical solution: an electric analog quantity adjustable fire damper actuator, including a valve body 4, a top shell 2 fixedly installed on the top of the valve body 4, an actuator 1 fixedly installed on the top of the top shell 2, mounting side plates 3 fixedly installed on both outer walls of the valve body 4, and a plurality of air holes 5 provided on the lower surface of the valve body 4.

[0046] The actuator 1 is equipped with an adjustment motor, and a first fireproof mechanism 6 is provided at one end of the output shaft of the adjustment motor. The top shell cavity of the valve body 4 is rotatably installed with an air guide assembly 9 and a second fireproof mechanism 12. The first fireproof mechanism 6 and the second fireproof mechanism 12 are used to block smoke and fire.

[0047] The actuator 1 is equipped with a signal receiver and a microcontroller. The valve body 4 is equipped with multiple temperature sensors. The actuator 1 enables continuous adjustment so that the first fireproof mechanism 6 and the second fireproof mechanism 12 are in different positions. The actuator 1 outputs analog signals and opening / closing signals for the first fireproof mechanism 6 and the second fireproof mechanism 12.

[0048] By incorporating actuator 1, a first fire-resistant mechanism 6, and a second fire-resistant mechanism 12, the fire damper actuator can achieve continuous adjustment of the first fire-resistant mechanism 6 and the second fire-resistant mechanism 12 via analog control signals from the BA system. This enables precise control of the flow rate within the pipeline. Furthermore, a temperature sensor is installed on the mechanism. When a fire occurs and the temperature inside the pipeline reaches a preset temperature, the temperature sensor can detect high-temperature data. Actuator 1 can then control the first fire-resistant mechanism 6 and the second fire-resistant mechanism 12 to automatically close, achieving automatic control of the fire damper and significantly improving the application effect and intelligence level of the mechanism.

[0049] The first fireproof mechanism 6 includes a mounting shaft 63, on the outside of which a drive pulley 62 and a drive gear 64 are fixedly mounted. A fireproof damper plate 65 is fixedly mounted at the bottom end of the mounting shaft 63. Multiple oblique air channels 68 are provided on the outside of the fireproof damper plate 65. An airflow turbulence component 69 is fixedly mounted inside the oblique air channels 68.

[0050] Four airflow turbulence components 69 are arranged in parallel to each other. Each airflow turbulence component 69 includes a mounting shaft seat 692, which is fixedly installed inside the inclined air duct 68. The mounting shaft seat 692 has a rotating hole inside, and a turbulence shaft 691 is rotatably installed in the rotating hole. A turbulence vane 693 is fixedly installed on the outer surface of the turbulence shaft 691, and the turbulence vane 693 is located inside the inclined air duct 68.

[0051] The fire damper plate 65 has a mounting groove 67 on its top surface. A cleaning component 66 is provided inside the mounting groove 67. The cleaning component 66 includes a built-in spring 662, which is fixedly installed inside the mounting groove 67. A cleaning pad 661 is fixedly installed at one end of the built-in spring 662. The cleaning pad 661 is slidably connected to the mounting groove 67, and the outer surface of the cleaning pad 661 is in close contact with the outer surface of the top shell 2.

[0052] An internal guide rail 7 is fixedly installed inside the top cavity of the valve body 4. A movable rack 10 is slidably installed on the internal guide rail 7. A puncture needle 11 is fixedly installed at one end of the movable rack 10. A high-pressure airbag 8 is fixedly installed on the inner wall of the valve body 4. The high-pressure airbag 8 is filled with high-pressure carbon dioxide gas and fire extinguishing powder particles. One end of the puncture needle 11 is located on one side of the high-pressure airbag 8. The drive gear 64 is meshed with the movable rack 10. The first fireproof mechanism 6 and the second fireproof mechanism 12 have the same size and dimensions.

[0053] The specific implementation method is as follows: When the first fire prevention mechanism 6 and the second fire prevention mechanism 12 are controlled to close, the mounting shaft 63 can drive the drive gear 64 to rotate. When the drive gear 64 rotates, it can drive the moving rack 10 to move laterally, and the puncture needle 11 can move laterally synchronously. When the first fire prevention mechanism 6 and the second fire prevention mechanism 12 control the valve body 4 to be completely closed, the puncture needle 11 moves laterally to puncture the high-pressure airbag 8. After the high-pressure airbag 8 is punctured, it bursts, and the high-pressure carbon dioxide gas and extinguishing powder particles inside can be carried out and finally discharged through the multiple air holes 5 of the valve body 4 to stably extinguish and control the flames in the environment around the valve body 4.

[0054] This design enables the automatic discharge of extinguishing gas and powder when the actuator 1 controls the first fire protection mechanism 6 and the second fire protection mechanism 12 to close automatically. This improves the control of the fire situation around the valve body, prevents the rapid spread of fire, creates more time for fire extinguishing, and enhances the application effect of the mechanism.

[0055] The air guide assembly 9 includes an air guide shaft 91, which is rotatably installed in a rotating hole on the bottom inner wall of the top shell 2. A driven pulley 92 and an inclined blade 93 are fixedly installed on the outside of the air guide shaft 91. The drive pulley 62 and the driven pulley 92 are connected by a transmission belt 61.

[0056] The specific implementation is as follows: When the actuator 1 controls the first fireproof mechanism 6 and the second fireproof mechanism 12 to adjust freely, the drive pulley 62 can rotate, and the driven pulley 92 can rotate through the transmission belt 61. The oblique blade 93 can rotate synchronously and turbulently. The airflow can be discharged through the air hole 5. At the same time, when the first fireproof mechanism 6 and the second fireproof mechanism 12 deflect, the airflow can flow quickly through the oblique air groove 68. The turbulence blade 693 can be driven to rotate, further improving the flow rate and flow effect of the airflow in the valve body 4, and further improving the actual application effect of the structure.

[0057] In this embodiment, the actuator 1 has an IP54 protection rating; the actuator 1 is controlled by analog signals and can be controlled by 0(2)-10VDC or 0(4)-20mA analog signals; the temperature sensor can be set to 70°C or 280°C to control the actuator's operation; the actuator 1 outputs an open or closed position feedback signal and an analog position feedback signal of 0(2)-10VDC or 0(4)-20mA.

[0058] Working principle: Actuator 1, first fireproof mechanism 6 and second fireproof mechanism 12 can realize the continuous adjustment of the fireproof valve actuator through the analog control signal of the BA system, thereby achieving precise control of the flow in the pipeline. In addition, a temperature sensor is installed on the mechanism. When a fire occurs and the temperature in the pipeline reaches the preset temperature, the temperature sensor can detect high temperature data. Actuator 1 can control the first fireproof mechanism 6 and the second fireproof mechanism 12 to automatically close, thereby realizing the automatic control of the fireproof valve.

[0059] When the first fireproof mechanism 6 and the second fireproof mechanism 12 are controlled to close, the mounting shaft 63 can drive the drive gear 64 to rotate. When the drive gear 64 rotates, it can drive the moving rack 10 to move laterally, and the piercing needle 11 can move laterally synchronously. When the first fireproof mechanism 6 and the second fireproof mechanism 12 control the valve body 4 to be completely closed, the piercing needle 11 moves laterally to pierce the high-pressure airbag 8. After the high-pressure airbag 8 is pierced, it bursts, and the high-pressure carbon dioxide gas and fire extinguishing powder particles inside can be carried out and finally discharged through the multiple air holes 5 of the valve body 4 to stably extinguish and control the flames in the environment around the valve body 4.

[0060] When the actuator 1 controls the first fireproof mechanism 6 and the second fireproof mechanism 12 to adjust freely, the drive pulley 62 can rotate, and the driven pulley 92 can rotate through the transmission belt 61. The oblique blade 93 can rotate synchronously and turbulently. The airflow can be discharged through the air hole 5. At the same time, when the first fireproof mechanism 6 and the second fireproof mechanism 12 deflect, the airflow can flow quickly through the oblique air groove 68. The turbulence blade 693 can be driven to rotate, further improving the flow rate and flow effect of the airflow in the valve body 4.

[0061] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric analog quantity regulating fire damper actuator, comprising a valve body (4), characterized in that: A top shell (2) is fixedly installed on the top of the valve body (4), and an actuator (1) is fixedly installed on the top of the top shell (2). Mounting side plates (3) are fixedly installed on both outer walls of the valve body (4), and multiple air holes (5) are provided on the lower surface of the valve body (4). The actuator (1) is equipped with an adjusting motor. The output shaft of the adjusting motor is equipped with a first fireproof mechanism (6). The top cavity of the valve body (4) is rotatably equipped with an air guide assembly (9) and a second fireproof mechanism (12). The first fireproof mechanism (6) and the second fireproof mechanism (12) are used to block smoke and fire. The first fireproof mechanism (6) includes a mounting shaft (63). The external of the mounting shaft (63) is fixedly equipped with a drive pulley (62) and a drive gear (64). The bottom end of the mounting shaft (63) is fixedly equipped with a fireproof valve plate (65). The external of the fireproof valve plate (65) is equipped with multiple oblique air grooves (68). The internal of the oblique air grooves (68) is fixedly equipped with an airflow disturbance assembly (69). Four airflow disturbance assemblies (69) are arranged in parallel with each other. The airflow disturbance assembly (69) includes a mounting shaft seat (692). The mounting shaft seat (692) is fixedly equipped with a drive pulley (9) and a drive gear (64). The air guide assembly (9) includes an air guide shaft (91), which is rotatably installed inside the inclined air duct (68). The air guide shaft (91) is rotatably installed inside the inclined air duct (692) and the inclined blade (93) is fixedly installed on the outside of the air guide shaft (91). The drive pulley (62) and the driven pulley (92) are connected by a transmission belt (61). The top shell cavity of the valve body (4) is fixedly installed with an internal guide rail (7). A moving rack (10) is slidably installed on the internal guide rail (7). A piercing needle (11) is fixedly installed at one end of the moving rack (10). A high-pressure airbag (8) is fixedly installed on the inner wall of the valve body (4). The high-pressure airbag (8) is filled with high-pressure carbon dioxide gas and fire extinguishing powder particles.

2. The electric analog quantity regulating fire damper actuator according to claim 1, characterized in that, A turbulence vane (693) is fixedly installed on the outer surface of the turbulence shaft (691), and the turbulence vane (693) is located inside the inclined wind duct (68).

3. The electric analog quantity regulating fire damper actuator according to claim 2, characterized in that, The fire damper plate (65) has an installation top groove (67) on its top surface. A cleaning component (66) is provided inside the installation top groove (67). The cleaning component (66) includes a built-in spring (662), which is fixedly installed inside the installation top groove (67).

4. The electric analog quantity regulating fire damper actuator according to claim 3, characterized in that, A cleaning pad (661) is fixedly installed at one end of the built-in spring (662). The cleaning pad (661) is slidably connected to the mounting top groove (67). The outer surface of the cleaning pad (661) is in close contact with the outer surface of the top shell (2).

5. The electric analog quantity regulating fire damper actuator according to claim 4, characterized in that, One end of the puncture needle (11) is located on one side of the high-pressure airbag (8), the drive gear (64) and the moving rack (10) are meshed with each other, and the first fireproof mechanism (6) and the second fireproof mechanism (12) have the same size.

6. The electric analog quantity regulating fire damper actuator according to claim 5, characterized in that, The actuator (1) is equipped with a signal receiver and a microcontroller. The valve body (4) is equipped with multiple temperature sensors. The actuator (1) achieves continuous adjustment so that the first fireproof mechanism (6) and the second fireproof mechanism (12) are in different positions. The actuator (1) outputs analog signals and opening / closing signals for the first fireproof mechanism (6) and the second fireproof mechanism (12).

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