Thermal insulation air pipe with anti-vibration structure

Abstract

The utility model belongs to the technical field of fabric air pipe, specifically discloses a heat -preserving air pipe with anti -vibration structure, including fan assembly, the fan assembly includes the air bellow of heating assembly and fan inside setting, the one end of air bellow is close to fan and is provided with pressure reducing component, the pressure reducing component includes the pressure reducing box of gradually expanding and its inside is provided with the flow -equalizing plate of many holes, one end of pressure reducing component is provided with air pipe component away from fan assembly, the flexible connection of two air pipes is realized to the nesting of the air pipe of cutting head and cutting pipe through cutting head, and is equipped with the combination hanging plate at two air pipe junctions, the combination hanging plate is hung on the wall through spring damping hanger. The utility model is provided with the gradually expanding pressure reducing structure and flow -equalizing plate, can effectively reduce and equalize the export airflow, inhibit the impact to the air pipe from the source, simultaneously, the elastic connection between air pipe and the damping hanger of top synergies, formed multiple damping barriers, solved the problem of air pipe vibration in the process of guiding air.

Description

Technical Field

[0001] This application relates to the field of fabric duct technology, and in particular to an insulated duct with a vibration damping structure. Background Technology

[0002] In environments such as industrial workshops, large stadiums, or agricultural greenhouses, insulated duct systems are often used to transport hot air over large areas to achieve purposes such as heating, drying, or environmental control. These systems typically consist of fans, heating components, and long air supply ducts, and their operational stability and reliability directly affect production efficiency and energy consumption.

[0003] Existing insulated duct systems, especially when using high-pressure fans, often face a prominent problem: the high-speed airflow ejected from the fan outlet directly impacts the duct. Due to the lack of effective buffering and flow equalization measures, this easily generates strong pressure pulsations and airflow disturbances within the duct. This continuous airflow impact not only produces significant aerodynamic noise but is also the main source of severe mechanical vibration throughout the entire duct system. Long-term duct vibration leads to a series of chain reactions, such as causing fatigue and loosening of connections between ducts, resulting in air leaks and reduced air delivery efficiency and insulation performance. Simultaneously, vibration transmitted to the mounting supports and building structure may cause fasteners to loosen, posing safety hazards and shortening the system's lifespan. Furthermore, simple rigid mounting methods cannot effectively isolate this vibration and may even amplify it.

[0004] Therefore, an insulated air duct with a vibration-resistant structure is proposed to solve the technical problem of air duct vibration during the transmission of warm air. Summary of the Invention

[0005] The purpose of this invention is to provide a heat-insulated air duct with a vibration-damping structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heat-insulated air duct with a vibration-damping structure, including a fan assembly, the fan assembly including a wind box, a support foot fixedly installed at the bottom of the wind box, the support foot being fixedly installed on the wall by bolts, a pressure-reducing component being provided at the end of the wind box away from the wall, an air duct assembly being movably installed at the end of the pressure-reducing component away from the wind box, and a spring-loaded shock-absorbing hanger being provided at the top of the air duct assembly.

[0007] According to the above technical solution, a heating component is provided inside the air box, and a fan is welded and fixed to one end of the air box through a hole; The outer walls at both ends of the air box have through holes and filter plates are welded and fixed thereon. A rotating rod is rotatably installed at one end of the filter plate. Both ends of the rotating rod pass through the filter plate. A scraper is welded and fixed at the end of the rotating rod outside the air box. The end of the scraper near the air box is in contact with the surface of the filter plate.

[0008] Two support plates are welded and fixed to the inner wall of one end of the bellows. An active rod is rotatably installed on one end of the two support plates relative to each other. An active gear is welded and fixed to the outer wall of the active rod. The rotating rod passes through the support plate, and a driven gear that meshes with the driving gear is welded and fixed to the outer wall of the rotating rod.

[0009] A motor is welded and fixed to the end of the support plate away from the drive rod, and the output shaft of the motor passes through the support plate and is fixedly installed with the drive rod.

[0010] According to the above technical solution, the pressure reducing assembly includes a pressure reducing box welded and fixed to the outer wall of the air box. The end of the pressure reducing box away from the air box is larger than the other end. A flow equalization plate is welded and fixed to the inner wall of the pressure reducing box. The flow equalization plate has several through holes. According to the above technical solution, the duct assembly includes a primary woven duct and a secondary woven duct that are connected to each other, and a connecting frame is welded and fixed to the outer wall of the end of the primary woven duct away from the secondary woven duct. A fixing frame is welded to the outer wall of the pressure reducing box near the air duct assembly, and fixing bolts are provided between the fixing frame and the connecting frame to connect the two.

[0011] A skewer plug is welded and fixed at one end of the primary fabric duct near the secondary fabric duct. A skewer insertion tube, which is welded and fixed at one end of the secondary fabric duct, is nested inside the outer wall of the skewer plug. An elastic plug is provided between the skewer insertion tube and the skewer plug.

[0012] A primary connecting plate is welded and fixed to the outer wall of the primary fabric duct near the secondary fabric duct. A secondary connecting plate is welded and fixed to the outer wall of the end of the insertion tube near the primary fabric duct. A connecting bolt is provided between the secondary connecting plate and the primary connecting plate to connect the two.

[0013] A primary suspension plate is welded and fixed to the outer wall of the primary connecting plate; The secondary suspension plate is welded and fixed to the outer wall of the secondary connecting plate at the position corresponding to the primary suspension plate. The secondary suspension plate is nested outside the primary suspension plate. The top ends of the primary suspension plate and the secondary suspension plate are provided with coaxial suspension holes, and spring shock absorbers are snapped into the suspension holes.

[0014] According to the above technical solution, the spring damping hanger includes a fixed track welded and fixed to the wall, a spring damper is snapped onto the outer wall of the fixed track, and a suspension rod is welded and fixed to the end of the spring damper away from the fixed track. The suspension rod and the suspension hole are fixedly installed by bolts.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model, (1) By setting up a gradually expanding pressure reducing box and an internal flow equalization plate, the high-speed turbulent airflow from the fan can be slowed down and evenly distributed. This design fundamentally reduces the direct impact force of the airflow on the pipe wall and avoids the main pipe vibration problems caused by pressure pulsation and airflow instability.

[0016] (2) A multi-layered vibration damping scheme is adopted by combining the flexible connection between pipes with the external spring damping hanger. The nested structure and flexible design at the pipe connection can buffer and isolate the vibration transmission of the pipe itself and prevent the temperature from being lost through the joint, while the damping hanger at the top provides suspension support and vibration attenuation. These two measures work together to reduce the vibration and temperature loss of the duct during long-term operation. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the fan assembly according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the pressure-reducing component structure according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the internal structure of the duct assembly according to an embodiment of the present utility model; Figure 5 This is an embodiment of the present utility model. Figure 4 A magnified view of a portion of the image; In the diagram: 1. Fan assembly; 101. Air box; 102. Filter plate; 103. Rotating rod; 104. Scraper; 105. Support plate; 106. Driven gear; 107. Driving rod; 108. Driving gear; 109. Motor; 110. Fan; 111. Heating assembly; 112. Support leg; 2. Pressure reducing assembly; 201. Pressure reducing box; 202. Flow equalization plate; 203. Fixing frame; 204. Fixing bolts; 3. Duct assembly Components; 301, Primary woven duct; 3011, Insert plug; 302, Connecting frame; 303, Secondary woven duct; 3031, Insert pipe; 3032, Elastic plug; 304, Primary connecting plate; 305, Secondary connecting plate; 306, Connecting bolt; 307, Primary suspension plate; 308, Secondary suspension plate; 309, Suspension hole; 4, Spring shock absorber hanger; 401, Fixed track; 402, Spring damper; 403, Suspension rod. Detailed Implementation

[0018] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-5 The present invention provides the following technical solution: like Figure 1 and Figure 2 As shown, an insulated air duct with a vibration-damping structure includes a fan assembly 1, which includes a fan box 101. A support foot 112 is fixedly installed at the bottom of the fan box 101. The support foot 112 is fixedly installed on the wall by bolts. A pressure-reducing component 2 is provided at the end of the fan box 101 away from the wall. An air duct assembly 3 is movably installed at the end of the pressure-reducing component 2 away from the fan box 101. A spring-loaded shock-absorbing hanger 4 is provided at the top of the air duct assembly 3.

[0020] like Figure 2 As shown, a heating assembly 111 is provided inside the air box 101, and a fan 110 is welded and fixed to one end of the air box 101; The outer walls of both ends of the air box 101 have through holes and filter plates 102 are welded and fixed thereon. A rotating rod 103 is rotatably installed on one end of the filter plate 102. Both ends of the rotating rod 103 pass through the filter plate 102. A scraping plate 104 is welded and fixed to one end of the rotating rod 103 outside the air box 101. The end of the scraping plate 104 near the air box 101 is in contact with the surface of the filter plate 102.

[0021] Two support plates 105 are welded and fixed to the inner wall of one end of the bellows 101. An active rod 107 is rotatably installed on one end of the two support plates 105 relative to each other. An active gear 108 is welded and fixed to the outer wall of the active rod 107. The rotating rod 103 passes through the support plate 105, and a driven gear 106 that meshes with the driving gear 108 is welded and fixed to the outer wall of the rotating rod 103.

[0022] A motor 109 is welded and fixed to one end of the support plate 105 away from the active rod 107. The output shaft of the motor 109 passes through the support plate 105 and is fixedly installed with the active rod 107.

[0023] When the fan 110 starts, outside air enters the air box 101 through the filter plate 102 at one end. As the air passes through the filter plate 102, dust and impurities are intercepted. Simultaneously, the motor 109 starts, and its output shaft drives the drive rod 107 to rotate. The drive gear 108 on the drive rod 107 rotates accordingly, and the driven gear 106 meshing with the drive gear 108 drives the rotating rod 103 to rotate. The scraper plates 104 at both ends of the rotating rod 103 rotate together with the rotating rod 103. Since the end of the scraper plate 104 closest to the air box 101 is in contact with the surface of the filter plate 102, the scraper plate 104 can remove dust and impurities adhering to the surface of the filter plate 102 during rotation, preventing the filter plate 102 from becoming clogged and affecting the airflow, thus preventing the original airflow-pressure balance from being disrupted and affecting the vibration of the subsequent ductwork.

[0024] like Figure 3 As shown, the pressure reducing assembly 2 includes a pressure reducing box 201 welded and fixed to the outer wall of the air box 101. The end of the pressure reducing box 201 away from the air box 101 is larger than the other end. A flow equalization plate 202 is welded and fixed to the inner wall of the pressure reducing box 201. The flow equalization plate 202 has several through holes.

[0025] When the airflow in the bellows 101 enters the pressure reducing box 201, the flow space inside the pressure reducing box 201 gradually increases because the end of the pressure reducing box 201 furthest from the bellows 101 is larger than the other end. This results in a corresponding decrease in flow velocity, achieving a preliminary pressure reduction effect. Subsequently, the airflow passes through the flow equalization plate 202 welded to the inner wall of the pressure reducing box 201. Several through-holes in the flow equalization plate 202 divide and organize the turbulent airflow, making the airflow flow more evenly towards the duct assembly 3. This avoids localized eddies and pressure fluctuations inside the duct due to uneven airflow distribution, further reducing the impact of the airflow on the duct assembly 3 and lowering the possibility of duct vibration.

[0026] like Figure 4 and Figure 5As shown, the duct assembly 3 includes a primary woven duct 301 and a secondary woven duct 303 that are connected to each other. A connecting frame 302 is welded and fixed to the outer wall of the end of the primary woven duct 301 away from the secondary woven duct 303. A fixing frame 203 is welded and fixed to the outer wall of the pressure reducing box 201 near the air duct assembly 3. A fixing bolt 204 is provided between the fixing frame 203 and the connecting frame 302 to connect the two.

[0027] A shaving plug 3011 is welded and fixed to one end of the primary fabric duct 301 near the secondary fabric duct 303. A shaving tube 3031, which is welded and fixed to one end of the secondary fabric duct 303, is nested on the outer wall of the shaving plug 3011. An elastic plug 3032 is provided between the shaving tube 3031 and the shaving plug 3011.

[0028] When the primary fabric duct 301 and the secondary fabric duct 303 are connected, the plug 3011 at one end of the primary fabric duct 301 is first aligned with the insertion tube 3031 at one end of the secondary fabric duct 303, and the plug 3011 is inserted into the insertion tube 3031. Because an elastic plug 3032 is provided between the insertion tube 3031 and the plug 3011, the elastic plug 3032 will undergo elastic deformation under the pressure of the plug 3011, thus tightly filling the gap between the insertion tube 3031 and the plug 3011. This not only enhances the sealing of the connection between the primary fabric duct 301 and the secondary fabric duct 303, preventing airflow leakage and temperature loss, but also provides a certain buffering effect, reducing the hard collisions and wear caused by vibration between the primary fabric duct 301 and the secondary fabric duct 303.

[0029] A primary connecting plate 304 is welded and fixed to the outer wall of the primary fabric duct 301 near the secondary fabric duct 303. A secondary connecting plate 305 is welded and fixed to the outer wall of the end of the insertion tube 3031 near the primary fabric duct 301. A connecting bolt 306 is provided between the secondary connecting plate 305 and the primary connecting plate 304 to connect the two.

[0030] A primary suspension plate 307 is welded and fixed to the outer wall of the primary connecting plate 304; The secondary connecting plate 305 has a secondary suspension plate 308 welded and fixed to the outer wall at the position corresponding to the primary suspension plate 307. The secondary suspension plate 308 is nested outside the primary suspension plate 307. The top of the primary suspension plate 307 and the top of the secondary suspension plate 308 are provided with coaxial suspension holes 309. A spring shock absorber 4 is snapped into the suspension hole 309.

[0031] The primary connecting plate 304, which is welded and fixed to the outer wall of the primary fabric duct 301 near the secondary fabric duct 303, and the secondary connecting plate 305, which is welded and fixed to the outer wall of the insertion pipe 3031 near the primary fabric duct 301, fit together. By setting connecting bolts 306 between the secondary connecting plate 305 and the primary connecting plate 304, the two are firmly connected, which further ensures the stability of the connection between the primary fabric duct 301 and the secondary fabric duct 303.

[0032] Meanwhile, the primary suspension plate 307, which is welded and fixed to the outer wall of the primary connecting plate 304, and the secondary suspension plate 308, which is welded and fixed to the corresponding position on the outer wall of the secondary connecting plate 305, cooperate with each other. The secondary suspension plate 308 is nested outside the primary suspension plate 307, and a spring shock absorber 4 is snapped into the coaxial suspension hole 309 opened at the top of both.

[0033] like Figure 1 As shown, the spring damping hanger 4 includes a fixed track 401 welded and fixed to the wall. A spring damper 402 is snapped onto the outer wall of the fixed track 401. A suspension rod 403 is welded and fixed to the end of the spring damper 402 away from the fixed track 401. The suspension rod 403 is fixed to the suspension hole 309 by bolts.

[0034] The fixed track 401 is securely bolted to the wall, providing solid top support for the entire hanger system. The upper end of the spring damper 402 is engaged with the outer wall of the fixed track 401, while its lower end is welded to a suspension rod 403. The end of the suspension rod 403 is bolted to the suspension holes 309 on the primary suspension plate 307 and secondary suspension plate 308 at the top of the duct assembly 3, thereby transferring the weight of the duct assembly 3 to the spring damper 402. When the duct assembly 3 vibrates due to airflow fluctuations or equipment operation, the vibration energy is transferred to the spring damper 402 through the suspension rod 403. The spring element inside the spring damper 402 first absorbs part of the vibration energy through elastic deformation, converting kinetic energy into elastic potential energy; simultaneously, the damping element dissipates the vibration energy by generating resistance in the opposite direction of vibration, gradually attenuating the vibration amplitude. This synergistic effect of "energy absorption and energy dissipation" effectively prevents the transmission of vibration from the duct assembly 3 to the wall and other structures, significantly reducing the vibration noise of the entire system and the adverse effects of vibration on the equipment itself and surrounding structures.

[0035] Working Principle: When the insulated air duct with vibration-damping structure is in operation, the fan assembly 1 starts. External air first passes through the filter plates 102 at both ends of the air box 101 before entering the box. It is then heated by the heating assembly 111 and driven by the fan 110 to form a hot airflow. After flowing out of the air box 101, the hot air enters the pressure reducing chamber 201 of the pressure reducing assembly 2. Because the pressure reducing chamber 201 has a gradually expanding structure and is equipped with a flow equalization plate 202 with through holes, the airflow velocity decreases and the pressure becomes more uniform, reducing vibration and noise in subsequent ducts caused by the intense impact of the airflow. The uniformly balanced airflow then enters the duct assembly 3.

[0036] In addition, when the filter plate 102 needs to be cleaned, the motor 109 can be started, and the driven gear 106 and the rotating rod 103 will be rotated through the drive rod 107 and the drive gear 108, so that the scraping plates 104 fixed at both ends of the rotating rod 103 will scrape the surface of the filter plate 102 to achieve the self-cleaning function.

[0037] The airflow first passes through the primary fabric duct 301, then enters the secondary fabric duct 303 via the nested connection between the plug 3011 and the insert tube 3031, and finally reaches the target area. The elastic plug 3032 between the plug 3011 and the insert tube 3031, and the connecting bolt 306 between the primary connecting plate 304 and the secondary connecting plate 305, together constitute a flexible connection between the ducts, which can effectively absorb and isolate the slight vibration and thermal expansion and contraction of the duct itself. At the same time, the entire duct assembly 3 is suspended by the upper spring shock-absorbing hanger 4 through the suspension hole 309 at the top after the primary suspension plate 307 and the secondary suspension plate 308 are nested.

[0038] The suspension rod 403 of the spring damping hanger 4 is fixed to the suspension hole 309, and the spring damper 402 on it can further absorb and attenuate the vibration from the piping system and the external environment, preventing the vibration from being transmitted to the building wall.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat-insulated air duct with a vibration-damping structure, comprising a fan assembly (1), characterized in that: The fan assembly (1) includes a bellows (101) fixedly installed on the wall. A heating assembly (111) is provided inside the bellows (101). A fan (110) is welded to one end of the bellows (101). A pressure reducing assembly (2) is provided at the end of the bellows (101) near the fan (110). A duct assembly (3) is movably installed at the end of the pressure reducing assembly (2) away from the bellows (101). The pressure reducing assembly (2) includes a pressure reducing box (201) welded and fixed to the outer wall of the wind box (101). The end of the pressure reducing box (201) away from the wind box (101) is larger than the other end. A flow equalization plate (202) is welded and fixed to the inner wall of the pressure reducing box (201). The flow equalization plate (202) has several through holes. The duct assembly (3) includes a primary woven duct (301) and a secondary woven duct (303) that are connected to each other. The end of the primary woven duct (301) away from the secondary woven duct (303) is movably installed on the outer wall of the pressure reducing box (201). A skewer plug (3011) is welded and fixed to the end of the primary woven duct (301) near the secondary woven duct (303). A skewer insertion tube (3031) welded and fixed to one end of the secondary woven duct (303) is nested in the outer wall of the skewer plug (3011). An elastic plug (3032) is provided between the skewer insertion tube (3031) and the skewer plug (3011).

2. The heat-insulating air duct with a vibration-damping structure according to claim 1, characterized in that: A primary connecting plate (304) is welded and fixed to the outer wall of the primary fabric duct (301) near the secondary fabric duct (303). The outer wall of the insertion tube (3031) near the first-stage fabric duct (301) is welded and fixed with a secondary connecting plate (305). A connecting bolt (306) is provided between the secondary connecting plate (305) and the first-stage connecting plate (304) to connect the two.

3. The heat-insulating air duct with a vibration-damping structure according to claim 2, characterized in that: The outer wall of the primary connecting plate (304) is welded and fixed with a primary suspension plate (307). The secondary connecting plate (305) has a secondary suspension plate (308) welded and fixed to the outer wall of the primary suspension plate (307). The secondary suspension plate (308) is nested outside the primary suspension plate (307). The top of the primary suspension plate (307) and the top of the secondary suspension plate (308) are provided with coaxial suspension holes (309). A spring shock absorber (4) is snapped into the suspension hole (309).

4. The heat-insulating air duct with a vibration-damping structure according to claim 3, characterized in that: The spring damping hanger (4) includes a fixed track (401) welded and fixed to the wall. A spring damper (402) is snapped onto the outer wall of the fixed track (401). A suspension rod (403) is welded and fixed to one end of the spring damper (402) away from the fixed track (401). The suspension rod (403) is fixed to the suspension hole (309) by bolts.

5. The heat-insulating air duct with a vibration-damping structure according to claim 4, characterized in that: A connecting frame (302) is welded and fixed to the outer wall of the first-level fabric duct (301) near the pressure reducing component (2). The pressure reducing box (201) has a fixed frame (203) welded to the outer wall of one end near the air duct assembly (3), and a fixing bolt (204) is provided between the fixed frame (203) and the connecting frame (302) to connect the two.

6. The heat-insulating air duct with a vibration-damping structure according to claim 5, characterized in that: The outer walls of both ends of the bellows (101) are provided with through holes and filter plates (102) are welded and fixed thereon. A rotating rod (103) is rotatably installed on one end of the filter plate (102). Both ends of the rotating rod (103) penetrate the filter plate (102). A scraper (104) is welded and fixed to one end of the rotating rod (103) outside the bellows (101). The end of the scraper (104) near the bellows (101) contacts the surface of the filter plate (102).

7. A heat-insulating air duct with a vibration-damping structure according to claim 6, characterized in that: Two support plates (105) are welded and fixed to the inner wall of one end of the bellows (101). An active rod (107) is rotatably installed on one end of the two support plates (105) relative to each other. An active gear (108) is welded and fixed to the outer wall of the active rod (107). The rotating rod (103) passes through the support plate (105), and the outer wall of the rotating rod (103) is welded and fixed with a driven gear (106) that meshes with the driving gear (108).

8. The heat-insulating air duct with a vibration-damping structure according to claim 7, characterized in that: A motor (109) is welded and fixed to one end of the support plate (105) away from the active rod (107). The output shaft of the motor (109) passes through the support plate (105) and is fixedly installed with the active rod (107). The bottom end of the bellows (101) is fixedly installed with a support foot (112), which is fixedly installed on the wall by bolts.

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