Full-automatic smoke adjusting device

Abstract

The invention relates to the technical field of industrial ventilation, and particularly discloses a full-automatic smoke adjusting device which comprises an elastic body, a valve body, a sliding groove, an elastic body adjusting mechanism, a shell and a connecting flange, the outer wall of the elastic body is sleeved with the shell, the front side and the rear side of the outer wall of the elastic body are arranged on the front side and the rear side of the inner wall of the shell respectively, and the valve body is arranged in the middle of the inner wall of the shell; the valve body is connected to the middle of the outer wall of the elastic body in a sleeving mode, a plurality of sliding grooves are formed in the front side of the valve body at equal intervals in the circumferential direction, the elastic body adjusting mechanism is arranged on the front side of the valve body, and the two connecting flanges are arranged on the front side and the rear side of the shell respectively. The device realizes high-precision, stepless and stable flow regulation in high-dust, strong-magnetism, high-temperature and corrosive gas environments, has good environmental adaptability, automation degree and long-term operation reliability, and effectively solves the problems of rough regulation, easiness in clamping stagnation and short service life of a traditional smoke regulating device.

Description

Technical Field

[0001] This invention relates to the field of industrial ventilation technology, specifically to a fully automatic smoke control device. Background Technology

[0002] In the production processes of metallurgical industries such as aluminum electrolysis, electrolytic cells generate large amounts of high-temperature flue gas containing corrosive components such as fluorine and sulfur. This flue gas needs to be treated promptly through exhaust systems to meet environmental and safety requirements. Currently, most commonly used exhaust systems employ parallel duct structures. However, due to differences in the distance between each electrolytic cell and the fan, and uneven distribution of resistance along the ductwork, the exhaust pressure in each cell becomes unbalanced, making exhaust difficult in some cells and affecting overall exhaust efficiency and pollution control effectiveness.

[0003] In existing technologies, manual or electric regulating valves are commonly used to regulate air pressure in ducts, such as butterfly valves and gate valves. However, these valves generally suffer from problems such as low regulation accuracy, susceptibility to turbulence, and poor environmental adaptability. Specifically, traditional valves often employ segmented opening and closing control, making it difficult to achieve continuous and precise flow regulation; unreasonable internal flow channel design can easily induce gas turbulence during regulation, affecting pressure stability; under high temperature, strong magnetic field, high dust, and corrosive atmospheres, valves are prone to jamming, wear, or sealing failure, leading to reduced regulation function or even complete failure; furthermore, most existing valves lack reliable remote control and feedback mechanisms, making it difficult to achieve multi-valve coordination and automated operation, still relying on manual intervention, resulting in slow response speed and poor control effect. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic smoke control device to at least solve the problems of low adjustment accuracy, easy generation of turbulence, poor environmental adaptability, insufficient automation, and low reliability of long-term operation in high temperature, strong magnetic field, high dust and corrosive gas environments.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic smoke adjustment device, comprising: an elastomer, a valve body, a slide groove, an elastomer adjustment mechanism, a housing, a connecting flange, and a detection mechanism. The housing is fitted onto the outer wall of the elastomer, and the front and rear sides of the outer wall of the elastomer are respectively disposed on the front and rear sides of the inner wall of the housing. The valve body is disposed in the middle of the inner wall of the housing and fitted onto the middle of the outer wall of the elastomer. A plurality of slide grooves are equidistantly spaced along the circumferential direction on the front side of the valve body. The elastomer adjustment mechanism is disposed on the front side of the valve body. There are two connecting flanges, which are respectively disposed on the front and rear sides of the housing. The detection mechanism is disposed on the inner wall of the valve body.

[0006] Preferably, the elastomer adjustment mechanism includes: an actuation component, a conversion component, and a power component. The actuation component is disposed in the inner cavity of the slide groove and directly contacts the elastomer, thereby adjusting the tightening and loosening state of the elastomer. The conversion component is disposed on the front side of the valve body and can convert rotational motion into linear motion of the actuation component. The power component is disposed on the outer wall of the housing and can provide the actuation component with the power to move.

[0007] Preferably, the actuating component includes: a rack, the rack being slidably fitted into the inner cavity of the slide groove, the inner end of the rack being slidably extended out of the inner side of the slide groove, and a first helix being formed on the front side of the rack.

[0008] Preferably, the actuating component further includes: a first elastomer adjusting plate and a second elastomer adjusting plate, wherein the first elastomer adjusting plate is disposed at the inner end of the rack, the second elastomer adjusting plate is disposed on the inner side of the first elastomer adjusting plate, and the second elastomer adjusting plate is in contact with the outer wall of the elastomer.

[0009] Preferably, a plurality of the first elastomer adjustment plates are arranged in a stacked ring, and the linear force transmitted by a single rack is dispersed to the entire ring area through the stacked structure of the first elastomer adjustment plates.

[0010] Preferably, when it is necessary to reduce the flow cross-section, the rack moves along the slide groove toward the direction closer to the elastic body, and the second elastic body adjusting plate squeezes the outer wall of the elastic body, causing the inner cavity of the elastic body to contract radially and the flow area to decrease; when it is necessary to increase the flow cross-section, the rack moves along the slide groove away from the elastic body, the squeezing force of the second elastic body adjusting plate on the elastic body is released, and the inner cavity of the elastic body expands radially under the action of its own elastic restoring force, increasing the flow area.

[0011] Preferably, the conversion component includes: a wheel guide roller, wherein the number of wheel guide rollers is several, and the several wheel guide rollers are rotatably disposed on the front side of the valve body in the circumferential direction via bearings.

[0012] Preferably, the elastic component further includes: a wheel and a second spiral, the outer wall of the wheel overlapping the outer wall of a plurality of wheel guide rollers, and a second spiral that matches a plurality of first spirals is provided on the rear side of the wheel, the second spiral engaging with a plurality of first spirals.

[0013] Preferably, the power assembly includes a PID power unit and a bevel gear, wherein the PID power unit is screwed to the outer wall of the housing, and the bevel gear is connected to the output end of the PID power unit through a gear shaft.

[0014] Preferably, the detection mechanism includes: a guide bracket, a lightweight probe, a groove, a support plate, a contact rod, a ball bearing, a spring, a first contact point, and a second contact point. The guide bracket is disposed on the inner wall of the valve body. The lightweight probes are multiple in number, and are equidistantly and slidably fitted into the front and rear sides of the outer wall of the guide bracket. A groove is formed circumferentially on the inner side of the outer wall of each lightweight probe, located within the inner cavity of the guide bracket. The inner end of each lightweight probe is disposed on the outer wall of an elastic body. The support plates are multiple in number, and are equidistantly disposed circumferentially on the front and rear sides of the inner cavity of the guide bracket. The positions of the plate and the positions of several lightweight probes correspond one-to-one. The contact rod is slidably fitted into the inner cavity of the support plate. The two ends of the contact rod are slidably fitted out from both sides of the support plate. The position of the contact rod corresponds to the position of the groove. The ball is slidably fitted into the inner end of the contact rod. The outer wall of the ball is in contact with the inner wall of the groove. The spring is sleeved on the outer wall of the contact rod. One end of the spring is engaged with the outer wall of the contact rod, and the other end of the spring is engaged with the inner wall of the support plate. The first contact point is located on the outer side of the contact rod, and the second contact point is located on the outer side of the support plate. The first contact point and the second contact point are in contact.

[0015] The fully automatic smoke adjustment device proposed in this invention has the following advantages: 1. This invention adopts a spiral meshing transmission and a multi-rack synchronous drive structure to achieve uniform and linear deformation of the elastomer, stepless continuous adjustment of the flow cross section, effectively avoid pressure sudden changes and gas turbulence, and significantly improve the accuracy of flow and pressure control.

[0016] 2. In this invention, the elastomer adopts an integrally molded funnel structure with no splicing gaps, and has good high temperature resistance and corrosion resistance; the wheel guide roller support and spiral meshing transmission design ensure smooth movement and resist dust jamming, making it suitable for industrial environments where strong magnetism, high dust, and corrosive gases coexist.

[0017] 3. This invention uses a PID power unit as the execution unit, which can receive remote commands and provide real-time position feedback, making it easy to connect to a PLC or DCS system, realize multi-valve parallel and coordinated control, greatly improve the system automation level, and reduce manual intervention.

[0018] 4. The present invention adopts a modular design, and the key transmission components are easy to inspect and replace; the elastic body and the adjustment mechanism have a separate structure, resulting in less wear and higher reliability, and the overall device has good durability and economy.

[0019] 5. This device achieves high-precision, stepless, and stable flow regulation in environments with high dust, strong magnetic fields, high temperatures, and corrosive gases. It has good environmental adaptability, a high degree of automation, and long-term operational reliability, effectively solving the problems of rough regulation, easy jamming, and short lifespan of traditional smoke control devices. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the structure of the elastomer adjustment mechanism; Figure 4 An exploded view of the elastomer adjustment mechanism; Figure 5 This is a schematic diagram of the roulette wheel. Figure 6 for Figure 4 Enlarged view of point A; Figure 7 for Figure 4 Enlarged view of point B; Figure 8 for Figure 4 Enlarged view of point C; Figure 9 This is a schematic diagram of the testing organization's structure; Figure 10 Exploded view of the testing agency; Figure 11 This is a front cross-sectional view of a lightweight probe. Figure 12 for Figure 11 Enlarged view of point D; Figure 13 for Figure 11 Enlarged view of point E.

[0021] In the diagram: 1. Elastomer; 2. Valve body; 3. Slide groove; 4. Elastomer adjustment mechanism; 41. Rack; 42. First helix; 43. First elastomer adjustment plate; 44. Second elastomer adjustment plate; 45. Wheel guide roller; 46. Wheel; 47. Second helix; 48. PID power unit; 49. Bevel gear; 5. Housing; 6. Connecting flange; 7. Detection mechanism; 71. Guide bracket; 72. Lightweight probe; 73. Groove; 74. Support plate; 75. Contact rod; 76. Ball bearing; 77. Spring; 78. First contact point; 79. Second contact point. 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] Please see Figures 1-13 This invention provides a fully automatic smoke regulating device, comprising: an elastomer 1, a valve body 2, a slide 3, an elastomer adjusting mechanism 4, a housing 5, a connecting flange 6, and a detection mechanism 7. The elastomer 1, as the core adjusting component, adopts an integrally molded funnel-shaped structure. Within the flow area, there are no other geometrically shaped components besides the conical funnel shape, minimizing pressure loss. It achieves stepless continuous adjustment of the flow cross-section through uniform deformation, possessing excellent high-temperature resistance, corrosion resistance, and elastic recovery performance, ensuring stable airflow and low pressure loss. The housing 5 is fitted onto the outer wall of the elastomer 1, with the front and rear sides of the outer wall of the elastomer 1 respectively positioned on the front and rear sides of the inner wall of the housing 5. The housing 5 serves as the external protective structure of the device, fitted onto the outer wall of the elastomer, with its inner walls' front and rear sides respectively fitted and fixed to the front and rear ends of the elastomer, providing support, sealing, and protection, adapting to harsh industrial environments. The valve body 2 is located within... In the middle of the inner wall of the outer shell 5, the valve body 2 is sleeved on the middle of the outer wall of the elastomer 1. Several grooves 3 are evenly spaced along the circumference on the front side of the valve body 2. The valve body 2 serves as a structural support and guide base. The grooves 3 are evenly spaced along the circumference on the front side of the valve body 2 to accommodate and guide the actuator to make radial linear motion, ensuring the synchronicity and stability of the adjustment process. The elastomer adjustment mechanism 4 is set on the front side of the valve body 2. The elastomer adjustment mechanism 4 is the core drive and execution module of the device, realizing the conversion of rotational motion into multi-directional synchronous linear motion, thereby accurately controlling the deformation of the elastomer. There are two connecting flanges 6. The two connecting flanges 6 are respectively set on the front and rear sides of the outer shell 5. The connecting flanges 6 are used to connect with the external smoke exhaust pipe to realize the quick installation and sealing docking of the device, ensuring the overall airtightness of the system. The detection mechanism 7 is set on the inner wall of the valve body 2. The detection mechanism 7 is used to detect the fatigue of the elastomer.

[0024] As a preferred embodiment, the elastomer adjustment mechanism 4 further includes an actuation component, a conversion component, and a power component. The actuation component is located in the inner cavity of the slide groove 3 and directly contacts the elastomer 1, thereby adjusting the tightening and loosening state of the elastomer 1. This ensures that the elastomer 1 is subjected to uniform force and continuous deformation during adjustment, avoiding local stress concentration or airflow disturbance. The conversion component is located on the front side of the valve body 2 and can convert rotary motion into linear motion of the actuation component, ensuring synchronous movement of multiple actuation units, smooth transmission, and sensitive response, effectively improving adjustment accuracy and system reliability. The power component is located on the outer wall of the housing 5 and can provide the actuation component with the power to move. It supports receiving external commands and feeding back position signals, and has remote control and automation integration capabilities, adapting to the intelligent control needs of industrial sites.

[0025] More specifically, the actuating component includes: a rack 41, a first helix 42, a first elastic body adjusting plate 43, and a second elastic body adjusting plate 44. The rack 41 is slidably fitted into the inner cavity of the slide groove 3, and the inner end of the rack 41 slidably extends out of the inner side of the slide groove 3. The front side of the rack 41 has a first helix 42. The rack 41 serves as a transmission and guiding component of the actuating component, used to mesh with the second helix 47 of the conversion component to convert rotational motion into its own radial linear motion. The first elastic body adjusting plate 43 is disposed at the inner end of the rack 41. The first elastic body adjustment plate 43 is a stacked structure. The first elastic body adjustment plate 43 serves as an intermediate force transmission structure, receiving the linear motion transmitted by the rack 41 and smoothly transmitting it to the second elastic body adjustment plate 44, playing the role of force distribution and motion guidance. The second elastic body adjustment plate 44 is located inside the first elastic body adjustment plate 43 and is in contact with the outer wall of the elastic body 1. The second elastic body adjustment plate 44 serves as the final action component, converting mechanical force into uniform compression or release of the elastic body 1, realizing continuous and controllable change of the cross-sectional shape of the elastic body 1.

[0026] Power reception and motion conversion: When the wheel 46 in the conversion component rotates under the drive of the power component, the second spiral 47 on the rear side of the wheel 46 meshes with the first spiral 42 on the front side of the rack 41. Since the rack 41 is radially limited by the slide groove 3, it cannot rotate with the second spiral 47. Therefore, the circumferential force generated by the meshing transmission is converted into a linear force that pushes the rack 41 to move radially along the slide groove 3, realizing the conversion from rotational motion to radial linear motion.

[0027] Power transmission and force distribution: When the rack 41 moves radially along the slide groove 3, the first elastic body adjustment plate 43 fixed at its end moves synchronously with the rack 41; since several first elastic body adjustment plates 43 are arranged in a stacked ring, the linear force transmitted by a single rack 41 is distributed to the entire ring area through the stacked structure of the first elastic body adjustment plates 43, avoiding local force overload that causes uneven deformation of the elastic body 1.

[0028] The deformation control of the elastic body 1 is achieved by the first elastic body adjusting plate 43 transmitting the dispersed linear force to the second elastic body adjusting plate 44. Since the second elastic body adjusting plate 44 is in contact with the outer wall of the elastic body 1, the linear force is converted into a uniform extrusion force on the elastic body 1. When it is necessary to reduce the flow cross-section, the rack 41 moves along the slide groove 3 towards the elastic body 1, and the second elastic body adjusting plate 44 squeezes the outer wall of the elastic body 1, causing the inner cavity of the elastic body 1 to contract radially and the flow area to decrease. When it is necessary to increase the flow cross-section, the rack 41 moves along the slide groove 3 away from the elastic body 1, and the extrusion force of the second elastic body adjusting plate 44 on the elastic body 1 is released. Under the action of its own elastic restoring force, the inner cavity of the elastic body 1 expands radially and the flow area increases.

[0029] The actuator enables continuous, stepless, and uniform adjustment of the cross-sectional shape of the elastomer 1, ensuring that the airflow is turbulent and has minimal pressure loss during the adjustment process, thus meeting the requirements for stable flow control in high-dust, high-temperature, and corrosive environments.

[0030] More specifically, the conversion assembly includes: a wheel guide roller 45, a wheel 46, and a second spiral 47. There are several wheel guide rollers 45, which are rotatably mounted on the front side of the valve body 2 along the circumferential direction via bearings. The wheel guide rollers 45 serve as the rotational support and guide structure for the wheel 46. It can reduce the frictional resistance when the wheel 46 rotates, ensure that the wheel 46 rotates smoothly and centrally, and effectively bear axial and radial loads, thereby improving the stability and life of the transmission system. The outer wall of the wheel 46 overlaps with the outer wall of several wheel guide rollers 45. The rear side of the wheel 46 is provided with a second spiral 47 that matches several first spirals 42. The second spiral 47 meshes with several first spirals 42. As the core component of the conversion, the outer wall of the wheel 46 contacts each wheel guide roller 45 to form rolling support. The rear side of the wheel 46 is machined with a second spiral 47 that meshes with the first spirals 42 on each rack 41 one by one, converting its own rotational motion into synchronous radial linear motion of multiple racks 41, thereby realizing the precise conversion of power transmission and motion mode.

[0031] More specifically, the power components include: a PID power unit 48 and a bevel gear 49. The PID power unit 48 is screwed to the outer wall of the housing 5. The PID power unit 48 adopts a geared motor with a PID module, which can be controlled or independently execute pressure signal adjustment commands. As the intelligent drive unit of the system, the PID power unit 48 has position control, speed regulation and torque output functions. The device integrates a PID control algorithm, can receive external control signals and provide real-time feedback on the execution position, supports remote adjustment and automated operation, and realizes precise and stable control of valve opening. The bevel gear 49 is connected to the output end of the PID power unit 48 through a gear shaft. As a primary transmission mechanism, the bevel gear 49 has a compact structure, high transmission efficiency, is suitable for power transmission in limited spaces, and has good load-bearing capacity and motion synchronization.

[0032] When the PID power unit 48 of the power assembly is started, its output end drives the bevel gear 49 to rotate through the gear shaft. The bevel gear 49 meshes with the ring gear on the front side of the wheel 46, transmitting the rotational torque to the wheel 46 and driving the wheel 46 to rotate around its own axis (coaxial with the valve body 2). At this time, the wheel guide roller 45 rolls synchronously under the friction of the wheel 46. On the one hand, it provides stable ring support for the wheel 46, restricting the radial displacement and axial movement of the wheel 46 and ensuring that its rotation center does not deviate. On the other hand, it reduces the rotational resistance of the wheel 46 by replacing sliding friction with rolling friction, avoiding component wear caused by frictional heat and extending the service life of the transmission system.

[0033] When the wheel 46 rotates, the second spiral 47 on its rear side moves in a circular motion synchronously with the wheel 46. Since the second spiral 47 is engaged with the first spiral 42 of the rack 41, and the rack 41 is radially limited by the slide groove 3 of the valve body 2 (it can only move in a straight line along the slide groove 3 and cannot rotate), the circumferential tangential force of the second spiral 47 is converted into a linear driving force that pushes the rack 41 to move radially along the slide groove 3 through the meshing tooth surface.

[0034] If the wheel 46 rotates clockwise (viewed from the front of the valve body 2), the teeth of the second helix 47 push the first helix 42, causing the rack 41 to move along the groove 3 toward the direction closer to the elastic body 1 (radially inward); if the wheel 46 rotates counterclockwise, the teeth of the second helix 47 pull the first helix 42, causing the rack 41 to move along the groove 3 away from the elastic body 1 (radially outward).

[0035] Because the equidistant circumferential distribution of the guide rollers 45 ensures the eccentric rotation of the disc 46, and the meshing parameters (module, pitch, and meshing depth) of the second helix 47 are completely consistent with those of all the first helixes 42, the radial movement speed and displacement of each rack 41 are synchronized when the disc 46 rotates, avoiding the problem of local force concentration and uneven deformation of the elastomer 1 due to asynchronous movement of individual racks 41; at the same time, the involute tooth design of the second helix 47 makes the meshing process smooth and impact-free, and can achieve a linear correspondence between the rotation angle of the disc 46 and the displacement of the rack 41 (e.g., for every 10 degrees the disc 46 rotates, the rack 41 moves 0.5 mm), providing a precise transmission basis for the subsequent stepless flow regulation of the elastomer 1.

[0036] More specifically, the detection mechanism 7 includes: a guide bracket 71, a lightweight probe 72, a groove 73, a support plate 74, a contact rod 75, a ball bearing 76, a spring 77, a first contact point 78, and a second contact point 79. The guide bracket 71 is disposed on the inner wall of the valve body 2. The guide bracket 71 serves as the mounting base and structural support for the detection mechanism 7, and is fixed to the inner wall of the valve body 2. It is used to position and guide the axial sliding of the lightweight probe 72, ensuring that the movement trajectory of the lightweight probe 72 is stable and aligned. There are several lightweight probes 72, which are equidistantly slidably fitted and inserted into the front and rear sides of the outer wall of the guide bracket 71 along the circumferential direction. A groove 73 is formed circumferentially on the inner side of the outer wall of guide bracket 72. The groove 73 is located in the inner cavity of guide bracket 71. The inner end of lightweight probe 72 is set on the outer wall of elastic body 1. Lightweight probe 72 is a displacement sensing element. Its inner end contacts the outer wall of elastic body 1 and moves axially with the deformation of elastic body. The groove 73 on the outer wall is used to cooperate with ball 76 to form a triggering mechanism. There are several support plates 74. Several support plates 74 are equidistantly arranged circumferentially on the front and rear sides of the inner cavity of guide bracket 71. The positions of several support plates 74 correspond one-to-one with the positions of several lightweight probes 72. Support plates 74 are the mounting and guiding bases for contact rod 75. The contact rod 75 can only slide axially, limiting its radial wobble and improving detection stability and repeatability. The contact rod 75 is slidably fitted into the inner cavity of the support plate 74. Both ends of the contact rod 75 slidably extend from both sides of the support plate 74. The position of the contact rod 75 corresponds to the position of the groove 73. The contact rod 75 serves as the carrier of the electrical contacts. One end is equipped with a ball bearing 76, and the other end has a first contact 78. With the cooperation of the ball bearing 76 and the groove 73, the contact rod 75 can move axially, controlling the contact and separation of the first contact 78 and the second contact 79 to achieve circuit switching. The ball bearing 76 is slidably fitted into the inner cavity of the support plate 74. The inner end of the contact rod 75 is connected to the outer wall of the ball 76, which contacts the inner wall of the groove 73. The ball 76 can reduce the friction between the contact rod 75 and the outer wall of the lightweight probe 72. The spring 77 is sleeved on the outer wall of the contact rod 75. One end of the spring 77 is engaged with the outer wall of the contact rod 75, and the other end of the spring 77 is engaged with the inner wall of the support plate 74. The spring 77 is a rotary spring. After being squeezed or stretched by external force, it undergoes elastic deformation and returns to its initial state after the external force is removed. The spring 77 is used here to provide a restoring force so that the contact rod 75 maintains the tendency to move inward without the action of external force, ensuring that the ball 76 keeps in contact with the outer wall of the lightweight probe 72.When the lightweight probe 72 returns to the position of the groove 73, the spring 77 pushes the contact rod 75 to cause the ball 76 to engage in the groove 73, thus locking the position. The first contact 78 is located on the outside of the contact rod 75, and the second contact 79 is located on the outside of the support plate 74. The first contact 78 and the second contact 79 are in contact with each other, forming a fatigue detection circuit. After the second elastomer adjustment plate 44 returns to its initial position, the circuit is connected when the two contacts are in contact, indicating that the elastomer 1 is not fatigued. When they are separated, the circuit is disconnected, indicating that the elastomer 1 is fatigued and needs to be replaced.

[0037] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0038] Connecting to the exhaust duct via flange 6, the maximum and minimum flow diameters are first calibrated. The PID power module calculates the origin and sets electronic limit positions. Upon receiving a command signal, the PID power module calculates and begins operation, adjusting the elastic body 1 to a predetermined position and deforming it to the required size. The PID module communicates its position to the command issuing unit. When a reduction in flow diameter is needed, the PID power unit 48 is activated. The PID power unit 48 drives the bevel gear 49 to rotate via the gear shaft. The rotation of the bevel gear 49 drives the wheel 46 to rotate. The rotation of the wheel 46, through the engagement of the first helix 42 and the second helix 47, drives several racks 41 to synchronously perform concentric linear motion, thereby adjusting the first elastic body. Plate 43 and the second elastic body adjusting plate 44 move synchronously in a concentric linear motion. The second elastic body adjusting plate 44 squeezes the elastic body 1, causing the cross-sectional diameter of the elastic body 1 to change uniformly and linearly, thereby reducing the flow diameter. At the same time, when the outer wall of the elastic body 1 moves inward, it pulls the lightweight probe 72 inward, causing the ball 76 to roll along the outer wall of the lightweight probe 72 until the ball 76 disengages from the inner cavity of the groove 73. Then, the outer wall of the lightweight probe 72 squeezes the ball 76 and the contact rod 75, causing the contact rod 75 to move the first contact point 78 outward, thereby causing the first contact point 78 and the second contact point 79 to separate. Conversely, when it is necessary to increase the flow diameter, the PID power unit 48 drives the bevel gear 49 to move in the opposite direction. This allows the wheel 46 to rotate in the opposite direction, thereby driving several racks 41 to synchronously perform centrifugal linear motion using the cooperation between the first helix 42 and the second helix 47. The elasticity of the elastic body 1 itself allows it to gradually return to its initial state, increasing the flow diameter and pushing the lightweight probe 72 outwards. When the device has been used for a period of time and the fatigue of the elastic body 1 needs to be checked, the PID power unit 48 is activated, causing the second elastic body adjustment plate 44 to return to its initial position. This allows the elastic body 1 to push the lightweight probe 72 outwards. If the elastic body 1 is not fatigued and its performance is intact, it will return to its initial state. This will cause the lightweight probe 72 to return to its initial state, and the contact rod 75 to move into the inner cavity of the groove 73. The first contact 78 and the second contact 79 will then make contact, and the detection circuit will be activated. This indicates that the elastomer 1 has not experienced fatigue. Conversely, if the elastomer 1 experiences fatigue due to long-term exposure to high temperatures, corrosion, strong magnetism, and cyclic stress, when the PID power device 48 causes the second elastomer adjustment plate 44 to return to its initial position, the elastomer may experience a decrease in elastic modulus, an increase in residual deformation, and stress relaxation due to fatigue. This will prevent the elastomer 1 from fully returning to its original shape after unloading, resulting in permanent deformation. In this case, even if the PID power device 48 is used to return the elastomer 1 to its initial position, the elastomer 1 will not be able to return to its initial state.This prevents the lightweight probe 72 connected to it from returning to its initial position, which in turn prevents the contact rod 75 from moving into the inner cavity of the groove 73. Consequently, the first contact 78 and the second contact 79 are separated, the detection circuit is not energized, and it can be determined that the elastomer 1 has become fatigued and needs to be replaced. This device achieves high-precision, stepless, and stable flow regulation in environments with high dust, strong magnetic fields, high temperatures, and corrosive gases. It has good environmental adaptability, a high degree of automation, and long-term operational reliability, effectively solving the problems of rough adjustment, easy jamming, and short lifespan of traditional smoke control devices.

[0039] 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 fully automatic smoke adjustment device, characterized in that, include: Elastomer (1); The outer shell (5) is fitted onto the outer wall of the elastomer (1), and the front and rear sides of the outer wall of the elastomer (1) are respectively disposed on the front and rear sides of the inner wall of the outer shell (5); Valve body (2), the valve body (2) is located in the middle of the inner wall of the outer shell (5), the valve body (2) is sleeved in the middle of the outer wall of the elastic body (1), and several sliding grooves (3) are provided on the front side of the valve body (2) at equal intervals along the circumference. An elastomer adjustment mechanism (4) is provided on the front side of the valve body (2); Two connecting flanges (6) are provided on the front and rear sides of the outer shell (5), respectively. The detection mechanism (7) is located on the inner wall of the valve body (2).

2. The fully automatic smoke adjusting device according to claim 1, characterized in that, The elastomer adjustment mechanism (4) includes: An execution component is disposed in the inner cavity of the slide (3) and directly contacts the elastic body (1) to adjust the tightening and loosening state of the elastic body (1); A conversion component is disposed on the front side of the valve body (2), and the conversion component is capable of converting rotary motion into linear motion of the actuating component; A power assembly is disposed on the outer wall of the housing (5) and is capable of providing power for the movement of the actuating components.

3. The fully automatic smoke adjusting device according to claim 2, characterized in that, The execution component includes: A rack (41) is slidably fitted into the inner cavity of a groove (3). The inner end of the rack (41) extends slidably out of the inner side of the groove (3). A first helix (42) is provided on the front side of the rack (41).

4. The fully automatic smoke adjusting device according to claim 3, characterized in that, The execution component also includes: The first elastic body adjusting plate (43) is disposed at the inner end of the rack (41); The second elastic body adjusting plate (44) is disposed inside the first elastic body adjusting plate (43), and the second elastic body adjusting plate (44) is in contact with the outer wall of the elastic body (1).

5. The fully automatic smoke adjusting device according to claim 4, characterized in that, Several of the first elastic body adjustment plates (43) are arranged in a stacked ring, and the linear force transmitted by a single rack (41) is dispersed to the entire ring area through the stacked structure of the first elastic body adjustment plates (43).

6. The fully automatic smoke adjusting device according to claim 5, characterized in that, When it is necessary to reduce the flow cross section, the rack (41) moves along the slide groove (3) towards the elastomer (1), and the second elastomer adjusting plate (44) squeezes the outer wall of the elastomer (1), causing the inner cavity of the elastomer (1) to contract radially and the flow area to decrease; when it is necessary to increase the flow cross section, the rack (41) moves along the slide groove (3) away from the elastomer (1), the squeezing force of the second elastomer adjusting plate (44) on the elastomer (1) is released, and the inner cavity of the elastomer (1) expands radially under the action of its own elastic restoring force, increasing the flow area.

7. The fully automatic smoke adjusting device according to claim 6, characterized in that, The conversion component includes: The number of wheel guide rollers (45) is several, and the several wheel guide rollers (45) are rotatably arranged on the front side of the valve body (2) in the circumferential direction through bearings.

8. The fully automatic smoke adjusting device according to claim 7, characterized in that, The resilient component also includes: A wheel (46) has its outer wall attached to the outer wall of a plurality of wheel guide rollers (45). The rear side of the wheel (46) is provided with a second spiral (47) that matches a plurality of first spirals (42). The second spiral (47) meshes with a plurality of first spirals (42).

9. A fully automatic smoke adjusting device according to claim 8, characterized in that, The power assembly includes: PID power unit (48), the PID power unit (48) is screwed to the outer wall of the housing (5); The bevel gear (49) is connected to the output end of the PID power unit (48) via a gear shaft.

10. A fully automatic smoke adjusting device according to claim 9, characterized in that, The testing organization (7) includes: Guide bracket (71), the guide bracket (71) is disposed on the inner wall of valve body (2); Lightweight probes (72), the number of which is several, and the several lightweight probes (72) are slidably and compatiblely inserted into the front and rear sides of the outer wall of the guide bracket (71) at equal intervals along the circumference. The inner side of the outer wall of the lightweight probe (72) is provided with a groove (73) along the circumference. The groove (73) is located in the inner cavity of the guide bracket (71). The inner end of the lightweight probe (72) is set on the outer wall of the elastic body (1). Support plate (74), the number of support plates (74) is several, the several support plates (74) are respectively arranged equidistantly along the circumference on the front and rear sides of the inner cavity of the guide bracket (71), and the positions of the several support plates (74) correspond one-to-one with the positions of the several lightweight probes (72); Contact rod (75), the contact rod (75) is slidably adapted to be inserted into the inner cavity of the support plate (74), the two ends of the contact rod (75) are respectively slidably adapted to extend out of the two sides of the support plate (74), and the position of the contact rod (75) corresponds to the position of the groove (73); A ball (76) is rotatably fitted into the inner end of a contact rod (75), and the outer wall of the ball (76) is in contact with the inner wall of the groove (73). Spring (77), the spring (77) is sleeved on the outer wall of the contact rod (75), one end of the spring (77) is clamped on the outer wall of the contact rod (75), and the other end of the spring (77) is clamped on the inner wall of the support plate (74); The first contact (78) is located on the outside of the contact rod (75); The second contact (79) is located on the outside of the support plate (74), and the first contact (78) and the second contact (79) are in contact.

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