Intelligent fire-fighting smoke sensing device with self-cleaning function

Abstract

The invention relates to the technical field of fire-fighting smoke sensing devices, and provides an intelligent fire-fighting smoke sensing device with a self-cleaning function, which can effectively promote smoke flow on the premise of ensuring the smoke detection effect, can improve the detection sensitivity while improving the smoke entering efficiency, and can effectively clean the smoke after the detection is completed. The smoke staying time in the rotary cylinder is short, sedimentation and gathering of smoke dust in the rotary cylinder can be greatly reduced, the practicability is improved, the use cleanliness is better, the fire detection module is installed in the base, the assembly structure comprises a conical shell and a double-hemisphere shell, and the conical shell is provided with a plurality of conical holes. The conical shell is fixedly connected to the bottom end of the base, the double-hemisphere shell is fixedly connected to the bottom end of the conical shell, the whirling smoke driving structure comprises a whirling cylinder, the whirling cylinder is rotationally connected into the conical shell, a plurality of labyrinth inward-extending frames are fixedly connected into the whirling cylinder, double spiral plates are fixedly connected into the whirling cylinder, and a wind chime driving assembly is installed in the double-hemisphere shell.

Description

Technical Field

[0001] This invention relates to the field of fire smoke detectors, and specifically to an intelligent fire smoke detector with a self-cleaning function. Background Technology

[0002] As is well known, intelligent fire smoke detectors are wireless network-connected stand-alone photoelectric smoke detectors that can issue an alarm signal and send alarm information when the smoke concentration reaches the alarm set value, achieving a second-level response to the alarm information. To ensure the service life and stability of intelligent fire smoke detectors, we propose an intelligent fire smoke detector with a self-cleaning function.

[0003] A search revealed Chinese patent application number CN201810464003.9, which discloses a smoke detection device and an intelligent fire protection maintenance and monitoring system. The system generally includes a base, a fire detection module, a power module, a mobile phone module, and a control circuit. The base has a first and a second accommodating space. The power module is located in the first accommodating space, and the mobile phone module and control circuit are located in the second accommodating space. The mobile phone module and control circuit are electrically connected. The fire detection module includes a housing, a smoke detection module, a motion detection module, and a camera module. The top of the housing is mounted on the base, and the bottom of the housing has a first mounting part. The camera module is mounted on the first mounting part. The smoke detection module and motion detection module are mounted on the side of the housing. The smoke detection module, camera module, and motion detection module are all electrically connected to the control circuit. Chinese patent application number CN2020... Patent 22076716.3 discloses an IoT-based intelligent smoke alarm device, which is roughly described as including a smoke sensor, an alarm mechanism, a rotating device, a monitoring device, and an installation mechanism. The smoke sensor includes a fixed plate, the alarm mechanism includes a first side plate and a second side plate, and the installation mechanism includes a third side plate. The upper surfaces of the first, second, and third side plates are all welded to the lower surface of the fixed plate. The rotating device is installed on the lower surface of the fixed plate and includes a mounting plate. The monitoring device includes a protective shell installed on the lower surface of the mounting plate. In use, after the smoke sensor detects smoke, it triggers the alarm mechanism, the buzzer sounds an alarm, and an alarm is triggered to the fire department via a signal transceiver. External personnel can remotely control the rotating device to rotate via the signal transceiver, allowing the camera to observe the scene from different angles.

[0004] Although both of the above-mentioned existing technical solutions can be used for smoke detection, they both require the detection module to be in direct contact with the smoke during the detection process. Such solutions usually require the smoke to diffuse into the containment space of the detection module and trigger the detection module before the corresponding detection and alarm can be realized. Therefore, enabling the external smoke to quickly enter the containment space becomes the key to improving the detection sensitivity. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent fire smoke detector with a self-cleaning function. While ensuring the smoke detection effect, it can also effectively promote smoke flow, improve the smoke entry efficiency and detection sensitivity. After detection, the smoke residence time in the vortex tube is short, which can significantly reduce the settling and accumulation of smoke dust in the vortex tube, thus improving practicality and providing better cleanliness.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent fire smoke detector with self-cleaning function, comprising a base, a fire detection module installed inside the base, and an assembly structure and a swirling smoke drive structure. The assembly structure includes a conical shell and a double hemispherical shell. The conical shell is fixedly connected to the bottom end of the base, and the double hemispherical shell is fixedly connected to the bottom end of the conical shell. The swirling smoke drive structure includes a swirling cylinder, which is rotatably connected inside the conical shell. Multiple labyrinthine extension frames are fixedly connected inside the swirling cylinder. An air inlet is provided outside the conical shell. The swirling cylinder is provided with gradient side strip holes. The multiple labyrinthine extension frames are alternately arranged with the multiple gradient side strip holes at intervals. A spiral double plate is fixedly connected inside the swirling cylinder. A wind chime drive assembly is installed inside the double hemispherical shell. An intermediate transmission assembly is installed inside the conical shell. The intermediate transmission assembly is used for transmission between the wind chime drive assembly and the swirling cylinder.

[0007] Preferably, the intermediate transmission assembly includes a horizontal hanger and a side suspension bracket. The horizontal hanger is fixedly connected inside the conical shell. An extended shaft is rotatably connected inside the horizontal hanger. A rope winding roller is fixedly connected to the extended shaft. The rope winding roller matches the wind chime drive assembly. A conical spring is connected to one end of the extended shaft. The conical spring is fixedly connected to the horizontal hanger. A drive gear is fixedly connected to the other end of the extended shaft. The drive gear meshes with a transmission gear. The transmission gear is rotatably connected to the horizontal hanger. The side suspension bracket is fixedly connected inside the conical shell. A vertical rotating shaft is rotatably connected to the side suspension bracket. A bevel gear is fixedly connected to the bottom end of the vertical rotating shaft and the rear end of the transmission gear. The two bevel gears mesh with each other. A spur gear is fixedly connected to the vertical rotating shaft. The spur gear meshes with a spur gear ring. The spur gear ring is fixedly connected to the bottom end of the rotary cylinder.

[0008] Preferably, one end of the cone spring is provided with an inwardly bent straight section, the outer extension shaft is provided with a transverse groove, the inwardly bent straight section is located in the transverse groove, the front end of the outer extension shaft is fixedly connected with a positioning pressure plate, the positioning pressure plate is used to assist in limiting the inwardly bent straight section in the transverse groove, the outer end of the cone spring is fixedly connected with a mounting ring, the mounting ring is provided with a fixing bolt, and the fixing bolt is threadedly fixedly connected to the horizontal hanger.

[0009] Preferably, the wind chime drive assembly includes a spherical frame, a ring support cavity is provided inside the double hemispherical shell, the spherical frame is installed in the ring support cavity, a traction rope and a traction rod are respectively connected to the top and bottom of the spherical frame, a traction wind chime is connected to the bottom of the traction rod, and the traction rope is wound and fixedly connected to the rope winding roller.

[0010] Preferably, the traction wind chime includes a top plate and a bottom plate, with two horizontal flat plates and two vertical flat plates fixedly connected between the top plate and the bottom plate, and the top plate being fixedly connected to the traction rod.

[0011] Preferably, the double hemispherical shell is provided with a protruding mounting ring, the protruding mounting ring has multiple threaded grooves, each of which is threaded with an assembly bolt. The protruding mounting ring is provided with a press-fit ring, the press-fit ring has multiple stepped holes, each of which is located in a stepped hole. The press-fit ring is provided with a ball-pressing cavity, which matches the spherical frame.

[0012] Preferably, the top and bottom of the spherical frame are provided with an insertion slot and an oblique groove. Each of the two oblique grooves is provided with a threaded hole, which is connected to the two insertion slots respectively. The traction rope and the traction rod are fixedly connected to the insertion frame. The two insertion frames are located in the two insertion slots respectively. Each of the two threaded holes is threaded with an oblique bolt. Each of the two insertion frames is provided with a side extension limiting groove, which is matched with the two oblique bolts respectively.

[0013] Preferably, the insertion frame connected to the traction rope is provided with an insertion bend and a threaded bottom hole. The traction rope passes through the insertion bend, and the threaded bottom hole communicates with the insertion bend. An inverted bolt is threaded into the threaded bottom hole, and the inverted bolt is used to press and position the traction rope in the insertion bend.

[0014] Preferably, the distance between the two horizontal plates is greater than the thickness of the vertical plate, and the distance between the two vertical plates is greater than the thickness of the horizontal plates.

[0015] Preferably, the base is externally fixedly connected with multiple mounting ears, each of which has a mounting hole, and the top of the base has a wire through hole.

[0016] Compared with the prior art, the present invention provides an intelligent fire smoke detector with self-cleaning function, which has the following beneficial effects: (1) In this invention, the external carrier structure of the intelligent fire smoke detector with self-cleaning function is formed by the combination of the assembly structure and the base, which provides convenience for the subsequent installation and integration of the swirling smoke drive structure, the wind chime drive component and the intermediate transmission component.

[0017] (2) In this invention, the design of the swirling flue gas drive structure can generate an auxiliary drive and turbulence effect on the air inside the conical shell. On the one hand, it improves the efficiency of external flue gas entering the conical shell, and on the other hand, it enables the gas inside the conical shell to be discharged quickly and assisted. Finally, it achieves rapid reciprocating exchange of air inside and outside the conical shell. While ensuring the detection sensitivity, it can discharge the flue gas inside the conical shell 3 in a timely manner, reducing the probability of dust accumulation and residue inside the conical shell.

[0018] (3) In this invention, by using the matching configuration of the wind chime drive component, the external flowing air is used as the power source to effectively convert the swing power generated by it, thereby providing power support for the reciprocating drive of the swirling flue gas drive structure.

[0019] (4) In this invention, by equipping the intermediate transmission component, the power conversion and transmission between the wind chime drive component and the swirling flue gas drive structure are realized, ensuring that the swirling flue gas drive structure can achieve reciprocating and continuous rotation operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the combination of the conical shell, double hemispherical shell, and spherical frame of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 4 For the present invention Figure 2 A magnified schematic diagram of the local structure at point B; Figure 5 This is an exploded three-dimensional structural diagram of the base, conical shell, and double hemispherical shell of the present invention. Figure 6 This is a three-dimensional structural diagram of the press-fit ring of the present invention; Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the cooperation of the extended shaft, the winding roller, and the insertion frame of the present invention; Figure 8 This is a three-dimensional structural diagram of the combination of the rotary cylinder, the labyrinth inner extension frame, and the spiral double plates of the present invention; Figure 9 This is a three-dimensional structural diagram of the invention viewed from below. Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure at point C in the middle; Figure 11 This is a top-view perspective schematic diagram of the exploded three-dimensional structure of the base, conical shell, and double hemispherical shell of the present invention. Figure 12This is a bottom-view three-dimensional structural diagram of the vertical rotating shaft, bevel gear, and spur gear of the present invention. Figure 13 For the present invention Figure 12 A magnified schematic diagram of the structure at point D.

[0021] In the diagram: 1. Base; 2. Fire detection module; 3. Conical shell; 4. Double hemispherical shell; 5. Rotary cylinder; 6. Labyrinth inner extension frame; 7. Air inlet slot; 8. Gradient side slot; 9. Spiral double plate; 10. Horizontal hanger; 11. Side suspension frame; 12. Outer shaft; 13. Rope winding roller; 14. Conical spring; 15. Drive gear; 16. Transmission gear; 17. Vertical rotating shaft; 18. Bevel gear; 19. Spur gear; 20. Spur gear ring; 21. Inner curved straight section; 22. Horizontal groove; 23. Positioning pressure plate; 4. Mounting ring; 25. Fixing bolt; 26. Spherical frame; 27. Ring support cavity; 28. Traction rope; 29. ​​Traction rod; 30. Top plate; 31. Bottom plate; 32. Horizontal plate; 33. Longitudinal plate; 34. Raised mounting ring; 35. Threaded groove; 36. Assembly bolt; 37. Press-fit ring; 38. Stepped hole; 39. Ball pressing cavity; 40. Insertion groove; 41. Angled groove; 42. Insertion frame; 43. Angled bolt; 44. Side extension limiting groove; 45. Inverted bolt; 46. Mounting ear; 47. Threading hole. Detailed Implementation

[0022] 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.

[0023] For examples, please refer to Figures 1-13A self-cleaning intelligent fire smoke detector includes a base 1, within which a fire detection module 2 is installed. It also includes an assembly structure and a swirling smoke drive structure. The assembly structure comprises a conical shell 3 and a double hemispherical shell 4. The conical shell 3 is fixedly connected to the bottom end of the base 1, and the double hemispherical shell 4 is fixedly connected to the bottom end of the conical shell 3. The assembly structure, in conjunction with the base 1, forms the external carrier structure of the self-cleaning intelligent fire smoke detector, facilitating the subsequent installation and integration of the swirling smoke drive structure, the wind chime drive assembly, and the intermediate transmission assembly. The swirling smoke drive structure includes a swirling cylinder 5, which is rotatably connected within the conical shell 3. A fixed connection is made within the swirling cylinder 5. Multiple labyrinthine extension frames 6 are connected to the conical shell 3, and air inlet holes 7 are provided on the outside of the conical shell 3. The gyratory cylinder 5 is provided with gradient side strip holes 8. The multiple labyrinthine extension frames 6 and the multiple gradient side strip holes 8 are arranged alternately at intervals. A spiral double plate 9 is fixedly connected inside the gyratory cylinder 5. Through the design of the gyratory flue gas driving structure, it can form an auxiliary driving and turbulence effect on the air inside the conical shell 3. On the one hand, it can improve the efficiency of external flue gas entering the conical shell 3, and on the other hand, it can realize the auxiliary rapid exhaust of gas inside the conical shell 3. Finally, it can achieve rapid reciprocating exchange of air inside and outside the conical shell 3. While ensuring detection sensitivity, it can timely exhaust the flue gas inside the conical shell 3 and reduce the probability of dust accumulation and residue inside the conical shell 3.

[0024] It should be further explained that the wind chime drive assembly is installed inside the double hemispherical shell 4, and the intermediate transmission assembly is installed inside the conical shell 3. The intermediate transmission assembly is used for the transmission between the wind chime drive assembly and the rotary cylinder 5. The intermediate transmission assembly includes a horizontal hanger 10 and a side suspension bracket 11. The horizontal hanger 10 is fixedly connected inside the conical shell 3. An extended shaft 12 is rotatably connected inside the horizontal hanger 10. A rope winding roller 13 is fixedly connected to the extended shaft 12. The rope winding roller 13 matches the wind chime drive assembly. A conical spring 14 is connected to one end of the extended shaft 12. The conical spring 14 is fixedly connected to the horizontal hanger 10. A drive gear 15 is fixedly connected to the other end of the extended shaft 12. The drive gear 15 meshes with a transmission gear 16, which is rotatably connected to the horizontal hanger 10. The side suspension bracket 11 is fixedly connected inside the conical shell 3. A vertical rotating shaft 17 is rotatably connected to the side suspension bracket 11. The bottom end of the vertical rotating shaft 17 and the transmission gear 16 are connected to the transmission gear 16. Both ends are fixedly connected to bevel gears 18, which mesh with each other for transmission. A spur gear 19 is fixedly connected to the vertical rotating shaft 17, and the spur gear 19 meshes with a spur ring 20 for transmission. The spur ring 20 is fixedly connected to the bottom end of the rotary cylinder 5. One end of the cone spring 14 is provided with an inner curved straight section 21. A transverse groove 22 is provided on the outer extension shaft 12, and the inner curved straight section 21 is located in the transverse groove 22. A positioning pressure plate 23 is fixedly connected to the front end of the outer extension shaft 12. The positioning pressure plate 23 is used to assist in limiting the inner curved straight section 21 in the transverse groove 22. An installation ring 24 is fixedly connected to the outer end of the cone spring 14. A fixing bolt 25 is provided in the installation ring 24. The fixing bolt 25 is threadedly fixedly connected to the horizontal hanging bracket 10. Through the configuration of the intermediate transmission components, the power conversion and transmission between the wind chime drive component and the rotary flue gas drive structure are realized, ensuring that the rotary flue gas drive structure can achieve reciprocating and continuous rotation operation.

[0025] Furthermore, the wind chime drive assembly includes a spherical frame 26, a ring support cavity 27 within the double hemispherical shell 4, the spherical frame 26 being installed within the ring support cavity 27, a protruding mounting ring 34 within the double hemispherical shell 4, the protruding mounting ring 34 having multiple threaded grooves 35, each threadedly connected to an assembly bolt 36, a pressure ring 37 within the protruding mounting ring 34, the pressure ring 37 having multiple stepped holes 38, the assembly bolts 36 being located within each of the stepped holes 38, and a ball-pressing cavity 39 within the pressure ring 37, which matches the spherical frame 26. A traction rope 28 and a traction device are connected to the top and bottom ends of the spherical frame 26, respectively. The top and bottom of the rod 29 and the spherical frame 26 are each provided with an insertion slot 40 and a slanted groove 41. Each of the two slanted grooves 41 has a threaded hole, which communicates with the two insertion slots 40 respectively. The traction rope 28 and the traction rod 29 are both fixedly connected to insertion frames 42, which are located within the two insertion slots 40 respectively. Each of the two threaded holes is threaded with a slanted bolt 43. Each of the two insertion frames 42 has a side extension limiting groove 44, which matches the two slanted bolts 43 respectively. The insertion frame 42 connected to the traction rope 28 has an insertion bend and a threaded bottom hole. The traction rope 28 passes through the insertion bend, and the threaded bottom hole connects with the extension... The bend hole is connected, and an inverted bolt 45 is threaded into the threaded bottom hole. The inverted bolt 45 is used to press and position the traction rope 28 extending into the bend hole. The bottom end of the traction rod 29 is connected to a traction wind chime. The traction rope 28 is wound and fixedly connected to the rope winding roller 13. The traction wind chime includes a top plate 30 and a bottom plate 31. Two horizontal plates 32 and two vertical plates 33 are fixedly connected between the top plate 30 and the bottom plate 31. The top plate 30 is fixedly connected to the traction rod 29. Through the matching arrangement of the wind chime drive assembly, the external airflow is used as the power source to effectively convert the swinging power generated by it, thereby providing power support for the reciprocating drive of the swirling flue gas drive structure. The two horizontal plates The spacing between plates 32 is greater than the thickness of the longitudinal plate 33, and the spacing between two longitudinal plates 33 is greater than the thickness of the transverse plate 32, so that the area enclosed by the two transverse plates 32 and the two longitudinal plates 33 has an air passage gap. When the external wind force is strong, it can ensure that the wind can pass through the passage gap, avoiding excessive force on the traction rod 29. Multiple mounting ears 46 are fixedly connected to the base 1. Each mounting ear 46 has a mounting hole to facilitate the fixing of the base 1 relative to the installation position. A wire hole 47 is opened at the top of the base 1. When the intelligent fire smoke detector with self-cleaning function is powered externally, the wire can be easily passed through the wire hole 47.

[0026] The fire detection module 2 in this embodiment is a conventional device known to those skilled in the art and available on the market. In this invention, we only use it without making any improvements to its structure and function. Its setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art in accordance with the requirements of its instruction manual, and will not be described in detail here.

[0027] In summary, the working principle of this self-cleaning intelligent fire smoke detector is as follows: Before use, the base 1 is stably installed in the area to be detected, typically on the ceiling, using the mounting holes on the mounting ears 46 and external bolts or other fixing components. This is because the smoke generated by a fire will form a hot smoke stream due to heat, continuously rising under buoyancy and accumulating on the ceiling first. The ceiling allows the fire detection module 2 to contact the smoke immediately, significantly reducing alarm delay and ensuring accurate and stable detection. If the self-cleaning intelligent fire smoke detector uses an external power supply, the power line can be passed through the wiring hole 47 at the top of the base 1 and electrically connected to the internal components. If the self-cleaning intelligent fire smoke detector uses an internal battery power supply, a battery should be installed in conjunction with the internal components. The base 1 has reserved installation space to allow for the storage of the battery. Regarding battery installation, this solution only introduces fire detection module 2 to meet basic detection needs. To provide alarm feedback, fire detection module 2 includes an infrared LED light source, a photosensitive receiver, a signal processing circuit, a buzzer, a signal transceiver, and a control switch. This allows for simultaneous smoke detection and signal feedback. For ease of operation, the control switch should be located outside the conical shell 3. Furthermore, based on fire detection module 2, other detection modules with different functions can be added according to actual needs to broaden the detection range and enrich the inspection parameters. After completing the installation and power supply preparation of this self-cleaning intelligent fire smoke detector, turn on the control switch matched with fire detection module 2. The self-cleaning intelligent fire smoke detector will then enter normal monitoring standby mode. Thereafter, fire detection module 2 will always remain operational, ready to detect smoke in the surrounding environment.

[0028] During routine standby and testing, the flowing air in the external environment acts on the traction wind chime at the bottom of the double hemispherical shell 4. The interaction between the air and the two horizontal plates 32 and two vertical plates 33 causes the traction wind chime to swing. This swing is transmitted to the spherical frame 26 via the traction rod 29. The spherical frame 26 moves in sync with the swing of the traction wind chime, pulling the traction rope 28. This pull causes the rope roller 13 to rotate, which in turn causes the outward extension shaft 12 to rotate within the horizontal hanging bracket 10. During the rotation of the outward extension shaft 12, the conical spring 14 deforms with the rotation, generating a restoring force after deformation, causing the outward extension shaft 12 to rotate in the opposite direction. The trend ensures that the extended shaft 12 can continuously reciprocate. The drive gear 15 reciprocates with the extended shaft 12. The rotation of the drive gear 15 drives the transmission gear 16 to rotate relative to the horizontal bracket 10. Since the bevel gear 18 at the rear end of the transmission gear 16 meshes with the bevel gear 18 at the bottom end of the vertical shaft 17, the horizontal rotation can be converted into vertical rotation, causing the vertical shaft 17 to reciprocate relative to the side suspension bracket 11. When the vertical shaft 17 rotates, the spur gear 19 on it rotates together. Under the mutual meshing action of the spur gear 19 and the spur ring 20, the rotary cylinder 5 is ultimately driven to continuously reciprocate inside the conical shell 3. During the rotation of the rotary cylinder 5, multiple labyrinthine extended brackets 6 fixed inside it... This creates turbulence and a driving force on the air inside the conical shell 3, accelerating the air exchange efficiency inside and outside the rotary cylinder 5. Combined with the spiral double plates 9 inside the rotary cylinder 5, it creates vertical turbulence on the smoke inside the rotary cylinder 5. On one hand, the labyrinthine extension frame 6 enriches and perfects the direction of smoke turbulence, improving the uniformity of smoke inside the rotary cylinder 5. On the other hand, it can also push the smoke towards the fire detection module 2 and drive it away from the fire detection module 2 after detection. When smoke appears in the external environment, under this turbulence, the smoke will quickly enter the interior of the conical shell 3 through the air inlet 7 on the outside of the conical shell 3, and pass through the gradient side strip holes 8 on the rotary cylinder 5 to enter the interior of the rotary cylinder 5, making full contact with the fire detection module 2 inside the base 1. Compared to... Existing technologies rely solely on the natural diffusion of smoke, significantly improving the efficiency of smoke entry. This allows the fire detection module 2 to quickly detect changes in smoke concentration. The fire detection module 2 utilizes the Tyndall effect for detection. In a smoke-free state, the infrared light emitted by the light source cannot directly illuminate the photosensitive receiving element due to the labyrinth structure design. The receiving end can only detect a weak background signal. When smoke particles enter the dark room, they cause the infrared light to scatter. Some of the scattered light will illuminate the photosensitive receiving element, which converts the light signal into an electrical signal. When the signal processing circuit detects that the electrical signal strength exceeds a preset threshold, it will trigger an alarm and transmit an alarm signal to the fire control panel, achieving a second-level response to the alarm and gaining valuable time for fire response.

[0029] After the detection is completed or when the external smoke dissipates, the continuous reciprocating rotation of the rotary cylinder 5 will continue to drive the rapid airflow inside the conical shell 3, quickly expelling the residual smoke and dust inside the rotary cylinder 5 and the conical shell 3. Simultaneously, due to the turbulence effect of the labyrinth inner frame 6 and the spiral double plate 9, the residence time of smoke inside the rotary cylinder 5 is significantly shortened, effectively reducing the settling and accumulation of smoke and dust on the inner wall of the rotary cylinder 5, the labyrinth inner frame 6, and the spiral double plate 9. This achieves the self-cleaning function of the intelligent fire smoke detector, ensuring the long-term stability and detection sensitivity of the self-cleaning intelligent fire smoke detector. Throughout the entire operation, the wind chime drive component uses the external airflow as its power source, requiring no additional electrical energy consumption, making it more energy-efficient and environmentally friendly. After a fire occurs, it significantly promotes indoor airflow. The driving force is the large amount of heat released by combustion, which causes the air in the combustion zone to heat up and expand rapidly and its density to drop sharply. Under the action of thermal buoyancy, a strong upward hot smoke airflow is formed. This upward airflow will continuously drive the surrounding cold air to replenish the combustion zone, thus forming a significant hot and cold air convection circulation in the room. The larger the fire, the higher the heat release and the more significant the thermal pressure effect. The vertical and horizontal flow speed of the air will also increase accordingly. If there are openings such as doors and windows in the building, the air pressure difference between the inside and outside of the building will further intensify the exchange and flow of air. Therefore, it can ensure the normal driving of the wind chime drive component. The intermediate transmission component can also realize the conversion and stable transmission of power, ensuring smooth linkage between various components. The inner bottom wall of the rotary cylinder 5 adopts a gradual structure with a high middle and a low outer ring. During daily operation, it is convenient to guide the debris that settles and accumulates in the rotary cylinder 5 outward.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning intelligent fire smoke detector, comprising a base (1), wherein a fire detection module (2) is installed inside the base (1), characterized in that, It also includes an assembly structure and a swirling flue gas drive structure. The assembly structure includes a conical shell (3) and a double hemispherical shell (4). The conical shell (3) is fixedly connected to the bottom end of the base (1), and the double hemispherical shell (4) is fixedly connected to the bottom end of the conical shell (3). The swirling flue gas drive structure includes a swirling cylinder (5). The swirling cylinder (5) is rotatably connected inside the conical shell (3). Multiple labyrinthine extension frames (6) are fixedly connected inside the swirling cylinder (5). An air inlet hole (7) is provided on the outside of the shell (3), and a gradient side strip hole (8) is provided on the rotary cylinder (5). Multiple labyrinth inner extension frames (6) are arranged alternately with multiple gradient side strip holes (8) at intervals. A spiral double plate (9) is fixedly connected inside the rotary cylinder (5). A wind chime drive assembly is installed inside the double hemispherical shell (4), and an intermediate transmission assembly is installed inside the conical shell (3). The intermediate transmission assembly is used for transmission between the wind chime drive assembly and the rotary cylinder (5).

2. The intelligent fire smoke detector with self-cleaning function according to claim 1, characterized in that, The intermediate transmission assembly includes a horizontal hanger (10) and a side suspension bracket (11). The horizontal hanger (10) is fixedly connected inside the conical shell (3). An extended shaft (12) is rotatably connected inside the horizontal hanger (10). A rope winding roller (13) is fixedly connected to the extended shaft (12). The rope winding roller (13) matches the wind chime drive assembly. A conical spring (14) is connected to one end of the extended shaft (12). The conical spring (14) is fixedly connected to the horizontal hanger (10). A drive gear (15) is fixedly connected to the other end of the extended shaft (12). The drive gear (15) meshes with and drives a... The transmission gear (16) is rotatably connected to the horizontal hanger (10). The side suspension bracket (11) is fixedly connected inside the conical shell (3). The side suspension bracket (11) is rotatably connected to a vertical rotating shaft (17). The bottom end of the vertical rotating shaft (17) and the rear end of the transmission gear (16) are both fixedly connected to bevel gears (18). The two bevel gears (18) mesh with each other for transmission. A spur gear (19) is fixedly connected to the vertical rotating shaft (17). The spur gear (19) meshes with a spur ring (20) for transmission. The spur ring (20) is fixedly connected to the bottom end of the rotary cylinder (5).

3. The intelligent fire smoke detector with self-cleaning function according to claim 2, characterized in that, One end of the cone spring (14) is provided with an inner curved straight section (21), and the outer extension shaft (12) is provided with a transverse groove (22). The inner curved straight section (21) is located in the transverse groove (22). The front end of the outer extension shaft (12) is fixedly connected with a positioning pressure plate (23). The positioning pressure plate (23) is used to assist in limiting the inner curved straight section (21) in the transverse groove (22). The outer end of the cone spring (14) is fixedly connected with an installation ring (24). A fixing bolt (25) is provided in the installation ring (24). The fixing bolt (25) is threadedly fixedly connected to the horizontal hanging bracket (10).

4. The intelligent fire smoke detector with self-cleaning function according to claim 3, characterized in that, The wind chime drive assembly includes a spherical frame (26), and a ring support cavity (27) is provided inside the double hemispherical shell (4). The spherical frame (26) is installed inside the ring support cavity (27). The top and bottom ends of the spherical frame (26) are respectively connected to a traction rope (28) and a traction rod (29). The bottom end of the traction rod (29) is connected to a traction wind chime. The traction rope (28) is wound and fixedly connected to the rope winding roller (13).

5. The intelligent fire smoke detector with self-cleaning function according to claim 4, characterized in that, The traction wind chime includes a top plate (30) and a bottom plate (31). Two horizontal flat plates (32) and two vertical flat plates (33) are fixedly connected between the top plate (30) and the bottom plate (31). The top plate (30) is fixedly connected to the traction rod (29).

6. The intelligent fire smoke detector with self-cleaning function according to claim 5, characterized in that, The double hemispherical shell (4) is provided with a protruding mounting ring (34), and the protruding mounting ring (34) is provided with multiple threaded grooves (35). Each of the multiple threaded grooves (35) is threaded with an assembly bolt (36). The protruding mounting ring (34) is provided with a press-fit ring (37), and the press-fit ring (37) is provided with multiple stepped holes (38). The multiple assembly bolts (36) are respectively located in the multiple stepped holes (38). The press-fit ring (37) is provided with a ball-pressing cavity (39), and the ball-pressing cavity (39) matches the spherical frame (26).

7. The intelligent fire smoke detector with self-cleaning function according to claim 6, characterized in that, The top and bottom of the spherical frame (26) are provided with an insertion groove (40) and a slanted groove (41). Threaded holes are provided in the two slanted grooves (41) and are respectively connected to the two insertion grooves (40). The traction rope (28) and the traction rod (29) are fixedly connected to the insertion frame (42). The two insertion frames (42) are respectively located in the two insertion grooves (40). Slanted bolts (43) are threadedly connected to the two threaded holes. Side extension limiting grooves (44) are provided on the sides of the two insertion frames (42) and are respectively matched with the two slanted bolts (43).

8. The intelligent fire smoke detector with self-cleaning function according to claim 7, characterized in that, The insertion frame (42) connected to the traction rope (28) is provided with an insertion bend and a threaded bottom hole. The traction rope (28) passes through the insertion bend and the threaded bottom hole communicates with the insertion bend. An inverted bolt (45) is threadedly connected in the threaded bottom hole. The inverted bolt (45) is used to press and position the traction rope (28) in the insertion bend.

9. The intelligent fire smoke detector with self-cleaning function according to claim 8, characterized in that, The distance between the two horizontal plates (32) is greater than the thickness of the vertical plate (33), and the distance between the two vertical plates (33) is greater than the thickness of the horizontal plate (32).

10. A smart fire smoke detector with self-cleaning function according to claim 9, characterized in that, The base (1) is fixedly connected to a plurality of mounting ears (46), each of which has a mounting hole, and the top of the base (1) has a wire hole (47).

Images