Sensing type smoke exhaust air valve with air speed control function

Abstract

The invention belongs to the technical field of smoke exhaust air valves, and particularly relates to a sensing type smoke exhaust air valve with an air speed control function, which comprises a guide cylinder, a smoke conveying part is arranged at the middle section in the guide cylinder, air in the guide cylinder is discharged through the smoke conveying part, and a negative pressure space is formed in the guide cylinder, so that suction and discharge of smoke at an input end are promoted; closed parts are arranged at the input end and the output end of the guide cylinder and can control openings of the input end and the output end of the guide cylinder, so that the air speed of smoke exhaust in the guide cylinder is controlled; a monitoring part is arranged at the lower end of the smoke conveying part, the monitoring part can monitor the concentration of smoke in the guide cylinder through laser, so that the discharging speed of the smoke conveying part is controlled, and the interior of the monitoring part is matched with the interior of the closed part in power. The monitoring port can be automatically cleaned, the smoke concentration in the guide cylinder can be monitored, and then the air speed in the guide cylinder can be adjusted by adjusting the openings in the two ends and the exhaust power.

Description

Technical Field

[0001] The invention belongs to the technical field of smoke exhaust air valves, and in particular relates to a sensor-type smoke exhaust air valve with wind speed control. Background Art

[0002] Ventilation ducts are metal or non-metallic ducts used in ventilation and air conditioning engineering for industrial and civil buildings. They are infrastructure for air circulation and reducing the concentration of harmful gases. Smoke exhaust dampers are often installed on ventilation ducts. The smoke exhaust dampers of ventilation ducts are usually closed and meet the air leakage requirements. When exhausting smoke, the smoke exhaust damper is opened manually or electrically. Most of the smoke exhaust dampers in the ventilation ducts in the prior art adopt a direct smoke exhaust method in which a motor drives the blades to operate. Although the air intake and air outlet inside the duct can be controlled, smoke can only be exhausted at conventional power, lacking adjustment flexibility, and being unable to adjust the efficiency of smoke delivery in real time according to the smoke concentration inside the specific duct. Even if there is a smoke monitoring device, the smoke and dust environment inside the duct causes the monitoring port of the monitoring equipment to be often attached with smoke and dust, resulting in inaccurate monitoring of smoke concentration. Summary of the invention

[0003] The purpose of the present invention is to provide a sensor-type smoke exhaust air valve with wind speed control, which can automatically clean the monitoring port and monitor the smoke concentration inside the guide tube, and then adjust the wind speed inside the guide tube by adjusting the openings at both ends and the size of the exhaust power.

[0004] The technical solution adopted by the present invention is as follows: A sensor-type smoke exhaust damper with wind speed control comprises a guide tube, wherein a smoke conveying portion is arranged in the middle section of the guide tube, and the air inside the guide tube is discharged through the smoke conveying portion, so that a negative pressure space is formed inside the guide tube, thereby promoting the discharge of smoke from an input end; The input end and the output end of the guide tube are both provided with a closing part, and the closing part can control the opening size of the input end and the output end of the guide tube, thereby controlling the air intake and air outlet inside the guide tube, thereby controlling the wind speed of smoke exhaust inside the guide tube; A monitoring unit is provided at the lower end of the smoke conveying unit. The monitoring unit can monitor the concentration of smoke inside the guide tube through laser, so as to control the discharge speed of the smoke conveying unit. The inside of the monitoring unit cooperates with the power inside the closing unit. The monitoring unit can use the power of the closing unit to clean, so as to remove smoke and dust attached to the monitoring end of the monitoring unit and improve the monitoring accuracy. The monitoring part includes a linkage gear, a monitoring seat, a rotating gear ring, a fixed seat, a cleaning block, an elastic extrusion piece, a protective ring, a laser monitor and a control unit. The linkage gear is fixedly connected to the closing part, the monitoring seat is slidably arranged inside the guide tube, the rotating gear ring is rotatably arranged inside the monitoring seat, and the outer edge of the rotating gear ring is meshed with the outer edge of the linkage gear, the fixed seat is fixedly connected to the inner side of the rotating gear ring by bolts, the cleaning block is slidably arranged inside the fixed seat, the elastic extrusion piece is arranged between the cleaning block and the fixed seat, the protective ring is fixedly arranged inside the monitoring seat, and the inner side of the protective ring cooperates with the cleaning block, the laser monitor is arranged in multiple groups inside the monitoring seat, and the laser monitor cooperates with the outer edge of the protective ring, the control unit is fixedly connected to the guide tube, and the control unit is electrically connected to the laser monitor, the smoke conveying part and the closing part.

[0005] In a preferred embodiment, a guide ridge is provided inside the guide tube, and the guide ridge cooperates with two sides of the monitoring seat.

[0006] In a preferred embodiment, one end of the cleaning block in contact with the protection ring is provided with a cleaning velvet surface.

[0007] In a preferred solution, the entire protective ring is made of a highly light-transmitting material.

[0008] In a preferred embodiment, the smoke conveying part includes a guide seat, a guide cover, a guide motor and a driving paddle. The guide seat is fixedly connected to the inside of the guide tube, the guide cover is fixedly connected to the middle of the guide seat, and the guide cover cooperates with the input end of the guide tube, the guide motor is fixedly connected to the inside of the guide cover, the guide motor is electrically connected to the control unit, and the axis of the driving paddle is fixedly connected to the output end of the guide motor.

[0009] In a preferred embodiment, the closing part includes a closing motor, a closing screw, a guide plate, a pulling seat, a closing plate and a mosaic plate. The closing motor is fixedly connected to the outside of the guide tube, and the closing motor is electrically connected to the control unit. Two closing screws are provided, and the two closing screws are fixedly connected to the output end of the closing motor. Two guide plates are provided, and the two guide plates are fixedly connected to the inner sides of the upper and lower ends of the guide tube. The pulling seat is slidably connected to the guide plate and the guide tube, and the interior of one end of the pulling seat is threadedly connected to the outer edge of the closing screw. Two closing plates are provided inside the guide plate, and the two closing plates are rotatably arranged at the two ends of the pulling seat respectively. The other end of the closing plate is slidably arranged inside the guide plate. The mosaic plate is fixedly arranged inside the guide tube, and the mosaic plate cooperates with the closing plate.

[0010] In a preferred embodiment, the thread directions of the two closed screws fixedly connected to the output end of the closed motor are opposite.

[0011] In a preferred embodiment, a vertical limiting groove is provided inside the guide plate, and the inside of the limiting groove is slidably connected to the pulling seat.

[0012] In a preferred solution, a horizontally inclined guide groove is further provided inside the guide plate, and the inside of the guide groove is slidably connected to the other end of the closing plate.

[0013] In a preferred solution, a rotating ring is rotatably provided at the other end of the closing plate, and the outer edge of the rotating ring matches with the inside of the guide groove.

[0014] The technical effects achieved by the present invention are: The present invention adopts the design of the smoke conveying part, and protects the internal guide motor through the guide cover to prevent the guide motor from being attached with smoke dust, which will cause the speed of the guide motor to decrease and cause mechanical vibration and noise, thereby reducing the use effect and stability of the guide motor; the control unit controls the rotation power of the guide motor and controls the rotation speed of the driving paddle driven by the guide motor, so that not only the smoke inside the guide tube can be driven and transported, but also the wind speed of the smoke can be controlled; The present invention adopts the design of the closed part, and controls the opening size of the closed part at the input end and the output end of the guide tube by the control unit, controls the air flow rate entering and exhausting from the guide tube, and further controls the wind speed of smoke exhaust inside the guide tube 1; The present invention adopts the design of a monitoring unit, which can monitor the concentration of smoke inside the guide tube through laser, thereby controlling the discharge speed of the smoke conveying unit. The power inside the monitoring unit cooperates with the power inside the closing unit. The monitoring unit can use the power of the closing unit for cleaning, thereby removing smoke and dust attached to the monitoring end of the monitoring unit and improving the monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of an embodiment of the present invention; Figure 2 is a schematic diagram of a sealing portion of an embodiment of the present invention; Figure 3 is an exploded view of a sealing portion of an embodiment of the present invention; Figure 4 is a schematic diagram of an embodiment of the present invention with the closed portion opened; Figure 5 is a schematic diagram of a closed portion of an embodiment of the present invention; Figure 6 It is an embodiment of the present invention, a closing plate and a fitting plate; Figure 7 is a schematic diagram of a smoke conveying unit of an embodiment of the present invention; Figure 8 is an exploded view of a monitoring unit of an embodiment of the present invention; Fig. 9 It is a schematic diagram of the connection between the rotating gear ring and the linkage gear in an embodiment of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Guide tube; 2. Smoke conveying part; 201. Guide seat; 202. Guide cover; 203. Guide motor; 204. Driving paddle; 3. Closing part; 301. Closing motor; 302. Closing screw; 303. Guide plate; 3031. Limiting groove; 3032. Guide groove; 304. Pulling seat; 305. Closing plate; 3051. Rotating ring; 306. Engaging plate; 4. Monitoring part; 401. Linking gear; 402. Monitoring seat; 403. Rotating gear ring; 404. Fixed seat; 405. Cleaning block; 406. Elastic extrusion piece; 407. Protective ring; 408. Laser monitor; 409. Control unit. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0020] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0021] See also Figures 1 to 9 As shown, the present invention provides a sensor-type smoke exhaust damper with wind speed control, comprising a guide tube 1, a smoke conveying portion 2 is provided in the middle section of the guide tube 1, and the air inside the guide tube 1 is discharged through the smoke conveying portion 2, so that a negative pressure space is formed inside the guide tube 1, thereby promoting the discharge of smoke from the input end; The input end and the output end of the guide tube 1 are both provided with a closing part 3, and the closing part 3 can control the opening size of the input end and the output end of the guide tube 1, thereby controlling the air intake and air outlet inside the guide tube 1, thereby controlling the wind speed of smoke exhaust inside the guide tube 1; A monitoring unit 4 is provided at the lower end of the smoke conveying unit 2. The monitoring unit 4 can monitor the concentration of smoke inside the guide tube 1 through laser, thereby controlling the discharge speed of the smoke conveying unit 2. The power inside the monitoring unit 4 cooperates with the power inside the closing unit 3. The monitoring unit 4 can use the power of the closing unit 3 to clean, thereby removing smoke and dust attached to the monitoring end of the monitoring unit 4 and improving the monitoring accuracy. The monitoring part 4 includes a linkage gear 401, a monitoring seat 402, a rotating gear ring 403, a fixed seat 404, a cleaning block 405, an elastic extrusion member 406, a protective ring 407, a laser monitor 408 and a control unit 409. The linkage gear 401 is fixedly connected to the sealing part 3, the monitoring seat 402 is slidably arranged inside the guide tube 1, the monitoring seat 402 and the guide tube 1 are fixed by bolts, the rotating gear ring 403 is rotatably arranged inside the monitoring seat 402, and the outer edge of the rotating gear ring 403 is meshed with the outer edge of the linkage gear 401, the fixed seat 404 is fixedly connected to the inner side of the rotating gear ring 403 by bolts, and the cleaning block 405 is fixedly connected to the inner side of the rotating gear ring 403 by bolts, and the cleaning block 405 is fixedly connected to the sealing part 3. 05 is slidingly arranged inside the fixed seat 404, the elastic extrusion piece 406 is arranged between the cleaning block 405 and the fixed seat 404, the protective ring 407 is fixedly arranged inside the monitoring seat 402, and the inner side of the protective ring 407 cooperates with the cleaning block 405, and multiple groups of laser monitors 408 are arranged inside the monitoring seat 402. The laser monitors 408 are divided into a transmitter and a receiver, the transmitter and the receiver are arranged correspondingly, and the laser monitors 408 cooperate with the outer edge of the protective ring 407, and the control unit 409 is fixedly connected to the guide tube 1, and the control unit 409 is electrically connected to the laser monitor 408, the smoke conveying part 2 and the closing part 3.

[0022] Specifically, the two ends of the guide tube 1 are connected to the smoke exhaust pipe, and the laser monitor 408 in the monitoring part 4 monitors the smoke concentration in the guide tube 1 through the protective ring 407, and sends the monitored smoke concentration data to the control unit 409 for analysis and processing; then the control unit 409 controls the smoke conveying part 2 and the closing part 3 to perform different wind speed control schemes; The control unit 409 controls the rotation speed of the smoke conveying part 2 to control the wind speed of the air inside the guide tube 1; At the same time, the control unit 409 controls the closing part 3 to control the opening size of the two ends of the guide tube 1, so as to further control the flow of air inside the guide tube 1; under the joint action of the smoke conveying part 2 and the closing part 3, the wind speed inside the guide tube 1 is controlled; At the same time, during the process of adjusting the opening size of the closing part 3, or during the periodic cleaning stage of the control unit 409, the opening movement of the closing part 3 is controlled to make the linkage gear 401 rotate together with the corresponding closing screw 302, and the rotation of the linkage gear 401 drives the rotating gear ring 403 inside the monitoring seat 402 to rotate, and the rotating fixed seat 404 and the cleaning block 405 of the rotating gear ring 403 rotate together, and the cleaning block 405 always applies pressure to the inner side of the protective ring 407 through the elastic extrusion of the elastic extrusion member 406, so as to improve the cleaning degree of the cleaning block 405 on the inner side of the protective ring 407, and by cleaning the protective ring 407, it is possible to avoid the adhesion of smoke and dust to the inner side of the protective ring 407, thereby improving the monitoring accuracy of the laser monitor 408 and reducing the maintenance frequency of the staff; When maintaining the monitoring part 4, it is only necessary to remove the bolts fixing the monitoring seat 402 and the guide tube 1, then pull the monitoring seat 402 out of the guide tube 1, and separate the rotating gear ring 403 from the linkage gear 401. At this time, the interior of the monitoring seat 402 is exposed, and the bolts fixed between the rotating gear ring 403 and the fixed seat 404 are unscrewed, and the fixed seat 404 and the cleaning block 405 are removed. The cleaning block 405 can be replaced, and then the fixed seat 404 and the cleaning block 405 are assembled and fixed to the rotating gear ring 403 by bolts, and then the monitoring seat 402 is pushed into the interior of the guide tube 1 and fixed with bolts. At this point, the replacement and maintenance of the cleaning block 405 is completed.

[0023] See also Figure 8 As shown, the interior of the guide tube 1 is provided with guide ridges, which cooperate with the two sides of the monitoring seat 402. The guide ridges provide guidance and limitation for the movement in and out of the monitoring seat 402. By moving the monitoring seat 402 out, a larger operating space can be provided for the maintenance personnel to replace the cleaning block 405.

[0024] See also Figure 8 As shown, one end of the cleaning block 405 that contacts the protective ring 407 is provided with a cleaning velvet surface, and the cleaning velvet surface can better remove dust attached to the inner side of the protective ring 407, thereby improving the cleanliness of the inner side of the protective ring 407.

[0025] See also Figure 8 As shown, the overall configuration of the protective ring 407 is a high-light-transmittance material. The high-light-transmittance material can allow the laser of the transmitting part of the laser monitor 408 to pass through the protective ring 407 and illuminate the corresponding receiver. The intensity of the smoke inside the protective ring 407 is monitored by the laser intensity received by the receiver. The high-light-transmittance material can reduce the attenuation of the laser inside the protective ring 407 and improve the monitoring accuracy.

[0026] See also Figure 7As shown, the smoke conveying part 2 includes a guide seat 201, a guide cover 202, a guide motor 203 and a driving paddle 204. The guide seat 201 is fixedly connected to the inside of the guide tube 1, the guide cover 202 is fixedly connected to the middle of the guide seat 201, and the guide cover 202 is matched with the input end of the guide tube 1. The guide motor 203 is fixedly connected to the inside of the guide cover 202. The guide cover 202 protects the guide motor 203 inside to prevent the guide motor 203 from being attached with smoke dust, which may cause the guide motor 20 The speed of the guide motor 203 decreases and mechanical vibration and noise are caused, thereby reducing the use effect and stability of the guide motor 203. The guide motor 203 is electrically connected to the control unit 409, and the control unit 409 controls the rotation of the guide motor 203. The axis of the driving paddle 204 is fixedly connected to the output end of the guide motor 203. The driving paddle 204 is driven by the guide motor 203 to rotate, so that the smoke inside the guide tube 1 moves along the blowing direction of the driving paddle 204, thereby completing the driving and conveying of the smoke.

[0027] See also Figures 1 to 6As shown, the closing portion 3 includes a closing motor 301, a closing screw 302, a guide plate 303, a pulling seat 304, a closing plate 305 and a fitting plate 306. The closing motor 301 is fixedly connected to the outside of the guide tube 1. The closing motor 301 is electrically connected to the control unit 409. The rotation of the closing motor 301 is controlled by the control unit 409. Two closing screws 302 are provided. The two closing screws 302 are fixedly connected to the output end of the closing motor 301. The guide plate 303 is provided with two The two guide plates 303 are fixedly connected to the inner sides of the upper and lower ends of the guide tube 1, the pulling seat 304 is slidably connected to the guide plates 303 and the guide tube 1, and the inner part of one end of the pulling seat 304 is threadedly connected to the outer edge of the closed screw 302, and the closed motor 301 drives the closed screw 302 to rotate. The rotation of the closed screw 302 causes the pulling seat 304 to move vertically along the outer edge of the closed screw 302, and at the same time, the pulling seat 304 moves vertically inside the guide plate 303, and the closed The closure plate 305 is provided with two pieces inside the guide plate 303. The two closure plates 305 are rotatably arranged at the two ends of the pulling seat 304 respectively, and the other end of the closure plate 305 is slidably arranged inside the guide plate 303. The pulling seat 304 is moved vertically inside the guide plate 303 to drive one end of the closure plate 305 to move vertically. At the same time, the other end of the closure plate 305 is moved horizontally inside the guide plate 303. The horizontal opening degree of the closure plate 305 is controlled by the movement of the pulling seat 304, so as to further control the air circulation inside the guide tube 1. The interlocking plate 306 is fixedly arranged inside the guide tube 1, and the interlocking plate 306 cooperates with the closure plate 305. An interlocking groove is provided inside the interlocking plate 306, and the interlocking groove cooperates with the upper end of the closure plate 305, so that when the closure plate 305 is in a horizontal state and contacts with the interlocking plate 306, the upper end of the closure plate 305 is inserted into the inside of the interlocking groove to improve the sealing degree of the closure plate 305 in a closed state.

[0028] See also Figure 2 and Figure 3 As shown, the two closed screws 302 fixedly connected to the output end of the closed motor 301 have opposite thread directions. When the output end of the closed motor 301 drives the closed screw 302 to rotate, since the thread directions of the two closed screws 302 are opposite, the pulling seats 304 corresponding to the two closed screws 302 can move toward and away from each other along their respective closed screws 302, thereby realizing the closing and opening operations of the closed plates 305 at both ends of the guide tube 1 at the same time.

[0029] See also Figures 3 to 5As shown, a vertical limit groove 3031 is provided inside the guide plate 303, and the inside of the limit groove 3031 is slidably connected with the pulling seat 304, and the limit groove 3031 provides vertical limit and guidance for the movement of the pulling seat 304, so as to prevent the pulling seat 304 from rotating and deviating during vertical movement; Since guide plates 303 are provided at both ends of the guide tube 1, the guide plate 303 at the upper end of the guide tube 1 is taken as an example for description; When the pulling seat 304 is at the upper end of the limiting groove 3031, the pulling seat 304 drives the closing plate 305 to be in a horizontal closed state. As the pulling seat 304 gradually moves vertically downward along the inside of the limiting groove 3031, the pulling seat 304 pulls one end of the closing plate 305 on both sides, so that the other end of the closing plate 305 moves toward the center direction of the guide tube 1 and gradually moves open until the pulling seat 304 is at the lower end of the limiting groove 3031. At this time, the pulling seat 304 pulls the closing plate 305 to be in the maximum open state; When the pull seat 304 is at the lower end of the limiting groove 3031, the pull seat 304 drives the closing plate 305 to be in an inclined open state. As the pull seat 304 gradually moves vertically upward along the inside of the limiting groove 3031, the pull seat 304 pushes one end of the closing plate 305 on both sides, so that the other end of the closing plate 305 moves toward the inner wall of the guide tube 1 and gradually moves and closes, until the pull seat 304 is at the upper end of the limiting groove 3031 and returns to the initial state. At this time, the pull seat 304 pulls the closing plate 305 to be in a closed state; In this way, the opening degree and closing degree of the closing plate 305 are controlled by moving the pulling seat 304 .

[0030] See also Figures 3 to 5 As shown, a horizontally inclined guide groove 3032 is further provided inside the guide plate 303, and the inside of the guide groove 3032 is slidably connected with the other end of the closing plate 305, so that the guide groove 3032 provides guidance and limitation for the other end of the closing plate 305; Since both ends of the guide tube 1 are provided with a closing plate 305, the closing plate 305 at the upper end of the guide tube 1 is taken as an example for description; When the other end of the closing plate 305 is at the upper end of the guide groove 3032, the closing plate 305 is in a horizontal state, and the upper end of the closing plate 305 is in contact with the engaging plate 306. At this time, the pulling seat 304 drives the closing plate 305 to be in a closed state. At this time, the pulling seat 304 pulls one end of the closing plate 305 to move inside the guide tube 1, and the other end of the closing plate 305 moves downward along the inside of the guide groove 3032. Since the guide groove 3032 is inclined, the force on the other end of the closing plate 305 is in an inclined state, so that the other end of the closing plate 305 can travel farther under a smaller force requirement, so that the closing plate 305 can rotate to a greater extent. In the process of pulling the seat 304 upward, one end of the closing plate 305 is pulled upward, and at this time, the other end of the closing plate 305 moves upward along the inside of the guide groove 3032. The other end of the closing plate 305 is also subjected to an oblique force, which can achieve the same effect, so that the closing plate 305 can easily return to a horizontal closed state; Thus, the inclination of the guide groove 3032 can improve the closing plate 305 to achieve a more convenient and smooth effect during opening and closing movements, and can also reduce the workload of the closing motor 301 .

[0031] See also Figure 4 and Figure 5 As shown, a rotating ring 3051 is rotatably provided at the other end of the closing plate 305, and the outer edge of the rotating ring 3051 cooperates with the inside of the guide groove 3032. When the closing plate 305 is pulled by the pulling seat 304, the rotating ring 3051 rotates inside the guide groove 3032, replacing the direct friction between the closing plate 305 and the guide plate 303, reducing the friction loss at the end of the closing plate 305, improving the durability of use, and also improving the moving speed and smoothness of the closing plate 305.

[0032] The working principle of the present invention is as follows: the two ends of the guide tube 1 are connected to the smoke exhaust pipe, and the laser monitor 408 in the monitoring part 4 is used to monitor the smoke concentration in the guide tube 1 through the protective ring 407, and the monitored smoke concentration data is sent to the control unit 409 for analysis and processing; then the control unit 409 controls the smoke conveying part 2 and the closing part 3 to perform different wind speed control schemes; The control unit 409 controls the rotation speed of the smoke conveying part 2 to control the wind speed of the air inside the guide tube 1; At the same time, the control unit 409 controls the closing part 3 to control the opening size of the two ends of the guide tube 1, so as to further control the flow of air inside the guide tube 1; under the joint action of the smoke conveying part 2 and the closing part 3, the wind speed inside the guide tube 1 is controlled; At the same time, during the process of adjusting the opening size of the closing part 3, or during the periodic cleaning stage of the control unit 409, the opening movement of the closing part 3 is controlled to make the linkage gear 401 rotate together with the corresponding closing screw 302, and the rotation of the linkage gear 401 drives the rotating gear ring 403 inside the monitoring seat 402 to rotate, and the rotating fixed seat 404 and the cleaning block 405 of the rotating gear ring 403 rotate together, and the cleaning block 405 always applies pressure to the inner side of the protective ring 407 through the elastic extrusion of the elastic extrusion member 406, so as to improve the cleaning degree of the cleaning block 405 on the inner side of the protective ring 407, and by cleaning the protective ring 407, it is possible to avoid the adhesion of smoke and dust to the inner side of the protective ring 407, thereby improving the monitoring accuracy of the laser monitor 408 and reducing the maintenance frequency of the staff; When maintaining the monitoring part 4, it is only necessary to remove the bolts fixing the monitoring seat 402 and the guide tube 1, then pull the monitoring seat 402 out of the guide tube 1, and separate the rotating gear ring 403 from the linkage gear 401. At this time, the interior of the monitoring seat 402 is exposed, and the bolts fixed between the rotating gear ring 403 and the fixed seat 404 are unscrewed, and the fixed seat 404 and the cleaning block 405 are removed. The cleaning block 405 can be replaced, and then the fixed seat 404 and the cleaning block 405 are assembled and fixed to the rotating gear ring 403 by bolts, and then the monitoring seat 402 is pushed into the interior of the guide tube 1 and fixed with bolts. At this point, the replacement and maintenance of the cleaning block 405 is completed.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A sensor-type smoke exhaust damper with wind speed control, characterized in that: It comprises a guide tube (1), wherein a smoke conveying portion (2) is provided in the middle section of the guide tube (1), and air inside the guide tube (1) is discharged through the smoke conveying portion (2), so that a negative pressure space is formed inside the guide tube (1), thereby promoting the discharge of smoke from the input end; The input end and the output end of the guide tube (1) are both provided with a closing portion (3), and the closing portion (3) is capable of controlling the size of the openings at the input end and the output end of the guide tube (1), thereby controlling the air intake and air outlet volumes inside the guide tube (1), thereby controlling the wind speed of smoke exhaust inside the guide tube (1); A monitoring unit (4) is provided at the lower end of the smoke conveying unit (2). The monitoring unit (4) can monitor the concentration of smoke inside the guide tube (1) through laser, thereby controlling the discharge speed of the smoke conveying unit (2). The interior of the monitoring unit (4) cooperates with the power inside the sealing unit (3). The monitoring unit (4) can use the power of the sealing unit (3) to clean, thereby removing smoke and dust attached to the monitoring end of the monitoring unit (4), thereby improving the monitoring accuracy. The monitoring portion (4) comprises a linkage gear (401), a monitoring seat (402), a rotating gear ring (403), a fixed seat (404), a cleaning block (405), an elastic extrusion member (406), a protective ring (407), a laser monitor (408) and a control unit (409); the linkage gear (401) is fixedly connected to the sealing portion (3); the monitoring seat (402) is slidably arranged inside the guide tube (1); the rotating gear ring (403) is rotatably arranged inside the monitoring seat (402); the outer edge of the rotating gear ring (403) is meshed with the outer edge of the linkage gear (401); and the fixed seat (404) is fixedly connected to the inner side of the rotating gear ring (403) by bolts. The cleaning block (405) is slidably arranged inside the fixing seat (404), the elastic extrusion member (406) is arranged between the cleaning block (405) and the fixing seat (404), the protective ring (407) is fixedly arranged inside the monitoring seat (402), and the inner side of the protective ring (407) cooperates with the cleaning block (405), a plurality of laser monitors (408) are arranged inside the monitoring seat (402), and the laser monitors (408) cooperate with the outer edge of the protective ring (407), the control unit (409) is fixedly connected to the guide tube (1), and the control unit (409) is electrically connected to the laser monitor (408), the smoke conveying portion (2) and the sealing portion (3).

2. The sensor-type smoke exhaust damper with wind speed control according to claim 1, characterized in that: A guide ridge is provided inside the guide tube (1), and the guide ridge cooperates with two sides of the monitoring seat (402).

3. The sensor-type smoke exhaust damper with wind speed control according to claim 1, characterized in that: One end of the cleaning block (405) that contacts the protective ring (407) is provided with a cleaning velvet surface.

4. The sensor-type smoke exhaust damper with wind speed control according to claim 1, characterized in that: The entire protective ring (407) is made of a highly light-transmitting material.

5. The sensor-type smoke exhaust damper with wind speed control according to claim 1, characterized in that: The smoke conveying section (2) comprises a flow guide seat (201), a flow guide cover (202), a flow guide motor (203) and a driving paddle (204); the flow guide seat (201) is fixedly connected to the inside of the flow guide tube (1); the flow guide cover (202) is fixedly connected to the middle of the flow guide seat (201), and the flow guide cover (202) cooperates with the input end of the flow guide tube (1); the flow guide motor (203) is fixedly connected to the inside of the flow guide cover (202); the flow guide motor (203) is electrically connected to a control unit (409); and the axis of the driving paddle (204) is fixedly connected to the output end of the flow guide motor (203).

6. The sensor-type smoke exhaust damper with wind speed control according to claim 1, characterized in that: The sealing portion (3) comprises a sealing motor (301), a sealing screw (302), a guide plate (303), a pulling seat (304), a sealing plate (305) and a fitting plate (306); the sealing motor (301) is fixedly connected to the outside of the guide tube (1); the sealing motor (301) is electrically connected to a control unit (409); two sealing screws (302) are provided, and the two sealing screws (302) are fixedly connected to the output end of the sealing motor (301); two guide plates (303) are provided, and the two guide plates (303) are connected to the upper and lower ends of the guide tube (1). The inner side is fixedly connected, the pulling seat (304) is slidably connected with the guide plate (303) and the guide tube (1), and the inner side of one end of the pulling seat (304) is threadedly connected with the outer edge of the closing screw (302), two closing plates (305) are arranged inside the guide plate (303), the two closing plates (305) are rotatably arranged at the two ends of the pulling seat (304), and the other end of the closing plate (305) is slidably arranged inside the guide tube (303), and the mosaic plate (306) is fixedly arranged inside the guide tube (1), and the mosaic plate (306) cooperates with the closing plate (305).

7. The sensor-type smoke exhaust damper with wind speed control according to claim 6, characterized in that: The two enclosed screws (302) fixedly connected to the output end of the enclosed motor (301) have opposite thread directions.

8. The sensor-type smoke exhaust damper with wind speed control according to claim 6, characterized in that: A vertical limiting groove (3031) is provided inside the guide plate (303), and the inside of the limiting groove (3031) is slidably connected to the pulling seat (304).

9. The sensor-type smoke exhaust damper with wind speed control according to claim 6, characterized in that: A horizontally inclined guide groove (3032) is also provided inside the guide plate (303), and the inside of the guide groove (3032) is slidably connected to the other end of the closing plate (305).

10. The sensor-type smoke exhaust damper with wind speed control according to claim 6, characterized in that: A rotating ring (3051) is rotatably provided at the other end of the closing plate (305), and the outer edge of the rotating ring (3051) matches the inside of the guide groove (3032).

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