Fabricated environment-friendly silencing air pipe

Abstract

The invention belongs to the field of air pipes, and particularly relates to a fabricated environment-friendly silencing air pipe which comprises edge strips. A storage cavity is formed in each edge strip, a polyurethane foaming agent is stored in each storage cavity, an injection opening is formed in the bottom end of each storage cavity, the four sets of edge strips are arranged, an outer side plate is arranged between every two sets of edge strips in the longitudinal direction, one side of each outer side plate is attached to the corresponding inner side plate, and the other side of each outer side plate is attached to the corresponding inner side plate. A plurality of sets of exhaust ports are formed in the center position of the side, away from the inner side plate, of the outer side plate, filling noise elimination mechanisms are arranged between the outer side plate and the edge strips and between the inner side plate and the edge strips, and an assembly type noise elimination mechanism is arranged between every two transverse sets of edge strips; the filling noise elimination mechanism is used for suppressing noise generated when the air flow impacts the inner side plate; through the structural design of the combination of the filling noise elimination mechanism and the assembly type noise elimination mechanism, the function of suppressing wind noise from multiple directions is achieved.

Description

Technical Field

[0001] The invention relates to the field of air ducts, in particular to an assembled environment-friendly sound-absorbing air duct. Background Art

[0002] Air duct is a piping system used for air transportation and distribution. Air duct can be divided into circular duct, rectangular duct, oblate duct and other types. Among them, the circular duct has the smallest resistance but the largest height dimension and is complex to manufacture, so the rectangular duct is mainly used.

[0003] For the existing air duct, specific reference may be made to the Chinese patent with publication number 251N2181646Y, which discloses in detail a ventilation duct used in an air-conditioning system, which is composed of an aluminum foil layer, a glass wool board layer, a glass fiber cloth layer, and a non-flammable adhesive. It is characterized in that it consists of a glass wool board air duct and an inner support member, the outermost layer of the glass wool board air duct is an aluminum foil layer, the aluminum foil layer is glued to the glass wool board layer inside it, and a fine glass fiber cloth layer is glued inside the glass wool board layer. The inner support member is supported in the glass wool board air duct, and the inner support member is formed by plugging a steel plate support frame and a steel plate right-angle plug-in fixing member.

[0004] Although the above-mentioned ventilation duct can effectively transport air, the duct will generate large wind noise due to the impact of airflow during use, thereby causing noise pollution to the surrounding environment; therefore, an assembled environmentally friendly sound-absorbing air duct is proposed to address the above-mentioned problem. Summary of the invention

[0005] In order to solve the problem in the prior art that the pipe will generate large wind noise due to the impact of airflow during use, thereby causing noise pollution to the surrounding environment, the present invention proposes an assembled environmentally friendly sound-absorbing air duct.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the assembled environmentally friendly sound-absorbing air duct described in the present invention comprises a side strip; a storage cavity is provided inside the side strip, a polyurethane foaming agent is stored inside the storage cavity, an injection port is provided at the bottom end of the storage cavity, four groups of side strips are provided, an outer plate is provided between each two longitudinal groups of side strips, one side of the outer plate is bonded to the inner plate, a filling noise-absorbing mechanism is provided between the outer plate, the inner plate and the side strip, and an assembled noise-absorbing mechanism is provided between each two transverse groups of side strips; The filling noise reduction mechanism is used to suppress the noise generated when the airflow impacts the inner plate, and the assembled noise reduction mechanism is used to further suppress the noise generated by the airflow impact in the upper and lower directions; the filling noise reduction mechanism includes a first control component and a second control component, the first control component includes an insert block, the insert block is fixedly connected to the upper and lower ends of the outer plate, and the insert block is slidably connected to the inside of the first slot, the insert block abuts against the main baffle, the main baffle is slidably connected to the inside of the first storage cavity, and the first storage cavity is opened inside the side bar; the second control component includes a second slot, the inside of the second slot is slidably connected to the end of the inner plate, the rear end of the inner plate abuts against the transmission plate, the transmission plate is slidably connected to the inside of the second active cavity, the side of the transmission plate away from the inner plate is fixedly connected to a rack, the rack is slidably connected to the inside of the transmission cavity, the rack is meshed with a gear, the gear is rotatably connected to the inside of the transmission cavity, and the gear is meshed with a tooth groove, and the tooth groove is opened on the side of the upper baffle; The assembled noise reduction mechanism includes a corner strip, which is fixedly connected to the inner side of the side strip, a buffer pad is glued to the top of the corner strip, an inner sealing plate is arranged on the top of the buffer pad, a fixing component is arranged between the inner sealing plate and the corner strip, and the fixing component is used to fix the inner sealing plate and absorb and consume the impact force of the airflow on the inner sealing plate to reduce wind noise.

[0007] Preferably, a plurality of exhaust ports are provided at a central position of the outer plate away from the inner plate.

[0008] Preferably, the first slot is opened on the side strip, the interior of the second movable cavity is fixedly connected with a guide rod, the guide rod passes through the transmission plate, and the outer side of the guide rod is wound with a second spring, the interior of the side strip is opened with a first movable cavity, and the first movable cavity is connected with the first storage cavity, and the interior of the first movable cavity is also slidably connected with a plurality of auxiliary baffles, and the auxiliary baffles are all fixedly connected with the connecting rod, the transmission cavity is opened inside the side strip, and the rear end of the transmission cavity is connected with the second movable cavity, and the first storage cavity is connected with the first slot, the side of the main baffle away from the plug block is fixedly connected with the connecting rod, and the connecting rod is slidably connected to the interior of the first movable cavity, and the second movable cavity is opened at a position near the rear end inside the side strip.

[0009] Preferably, a noise reduction layer is provided at one end of the inner sealing plate away from the buffer pad, the noise reduction layer is fixedly connected to the outer sealing plate, the outer sealing plate is slidably connected to the side strip, the upper baffle is slidably connected to the inside of the second storage cavity, the second storage cavity is opened inside the side strip, grooves are opened on both sides of the inner sealing plate, the inside of the grooves is slidably connected with slide rails, the slide rails are fixedly connected to the side strips, the bottom end of the angle strip is designed in an inner arc shape, the buffer pads are all made of silicone rubber, the bottom surface of the grooves is glued with a gasket, and the gasket is made of silicone rubber.

[0010] Preferably, a slope is provided on one side of the main baffle plate close to the plug block, the rear sides of the main baffle plate and the auxiliary baffle plate are both arc-shaped, and the main baffle plate and the auxiliary baffle plate are both "L"-shaped as a whole, and the injection port is connected to the first receiving cavity and the first active cavity.

[0011] Preferably, the front ends of the main baffle and the auxiliary baffle are both provided with a sliding groove, the interior of the sliding groove is slidably connected with a sliding block, the sliding block is fixedly connected to the inner walls of the first storage cavity and the first active cavity, and a first spring is also provided inside the sliding groove, the side of the first spring close to the sliding block is fixedly connected to the sliding block, and the side of the first spring away from the sliding block is fixedly connected to the inner wall of the sliding groove.

[0012] Preferably, one end of the second spring is fixedly connected to the transmission plate, and the other end of the second spring is fixedly connected to the inner wall of the second active cavity, and the second receiving cavity is connected to the transmission cavity and the injection port.

[0013] Preferably, the fixing assembly includes a fixing cavity, which is opened at one end of the inner sealing plate close to the buffer pad, the fixing cavity is engaged with the fixing buckle, and the end of the fixing buckle away from the fixing cavity is fixedly connected with a sleeve rod, the sleeve rod is inserted into the interior of the socket connector, and a third spring is arranged inside the socket connector, one end of the third spring is fixedly connected to the sleeve rod, and the other end of the third spring is fixedly connected to the inner wall of the socket connector, an air nozzle is opened at the bottom end of the socket connector, and a moving assembly is also arranged at the end of the socket connector away from the fixing buckle.

[0014] Preferably, the moving assembly includes a movable block, which is fixedly connected to the sleeve, the movable block is sleeved on the outer side of the sliding rod, the sliding rod is fixedly connected to the inside of the movable groove, the movable groove is opened on the bearing seat, and a fourth spring is also wound around the outer side of the sliding rod, the side of the fourth spring close to the movable block is fixedly connected to the movable block, and the side of the fourth spring away from the movable block is fixedly connected to the inner wall of the movable groove, the bearing seat is sleeved on the outer side of the limit rod, the bottom end of the limit rod is fixedly connected to the inner wall of the third storage cavity, the third storage cavity is opened on the angle bar, and a fifth spring is also arranged inside the third storage cavity, one end of the fifth spring is fixedly connected to the bearing seat, and the other end of the fifth spring is fixedly connected to the inner wall of the third storage cavity.

[0015] The present invention is beneficial in that: 1. The present invention realizes the function of suppressing wind noise from multiple directions through the structural design of the combination of the filling noise reduction mechanism and the assembled noise reduction mechanism, solves the problem that the pipeline will generate large wind noise due to the impact of the airflow during use, thereby causing noise pollution to the surrounding environment, reduces the noise pollution generated by the entire air duct system during operation, and can also conveniently assemble the entire air duct. When transporting the entire air duct, it can be disassembled for transportation to improve efficiency, and can be assembled on site during installation, which is convenient and fast; 2. The present invention realizes the function of reducing the eddy current generated between the airflow and the interface between the inner plate and the inner sealing plate through the structural design of the inner arc surface of the angle strip, which can effectively reduce the wind noise generated by the eddy current and improve the overall noise reduction effect. Through the structural design of the filling noise reduction mechanism, the obstruction received by the storage cavity disappears after the outer plate and the inner plate are connected with the edge strip, so that the polyurethane foaming agent in the storage cavity automatically fills the pores between the outer plate and the inner plate. The porous structure layer formed by the curing of the polyurethane foaming agent can effectively absorb the wind noise, thereby achieving the effect of noise reduction. At the same time, the porous structure layer formed by the polyurethane foaming agent can have the effect of keeping the air transported inside warm, thereby reducing the energy consumption of the air-conditioning system and saving energy and protecting the environment. 3. The present invention realizes the function of suppressing and absorbing the impact force generated by the airflow impacting the inner sealing plate through the structural design of the assembled noise reduction mechanism, thereby achieving the effect of noise reduction. At the same time, by adopting the noise reduction layer of rock wool material, it can also have the effect of insulating the air transported inside the air duct, which can effectively reduce the energy consumption of the air-conditioning system and further achieve the effect of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partial cross-section of a three-dimensional structure of a side strip of the present invention; Figure 3 It is a schematic diagram of the partial three-dimensional structure of the outer plate, the exhaust port and the insert block of the present invention; Figure 4 It is a schematic diagram of a partial top-down cross-sectional three-dimensional structure of a first control assembly of the present invention; Figure 5 It is a schematic diagram of a partial top view of a three-dimensional structure of a second control component of the present invention; Figure 6 It is a schematic diagram of a partial side cross-sectional three-dimensional structure of the assembled noise reduction mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Fig. 9 It is a schematic diagram of a partial explosion structure of the first control component of the present invention; Fig.10 It is a schematic diagram of a partial explosion structure of the second control component of the present invention; Fig.11 It is a schematic diagram of the partial explosion structure of the assembled noise reduction mechanism of the present invention.

[0018] In the figure: 1, side strip; 2, storage chamber; 21, outer plate; 22, exhaust port; 23, plug block; 24, first slot; 251, main baffle; 252, auxiliary baffle; 26, first storage chamber; 27, sliding slot; 28, sliding block; 29, first spring; 30, connecting rod; 31, first movable chamber; 32, injection port; 33, inner plate; 34, second slot; 341, transmission plate; 35, second movable chamber; 36, guide rod; 37, second spring; 38, rack; 39, transmission cavity; 40, gear; 41, tooth groove; 42, upper baffle; 43, second storage cavity; 44, angle bar; 45, inner sealing plate; 46, slide rail; 47, noise reduction layer; 48, outer sealing plate; 49, buffer pad; 50, fixed cavity; 51, fixing buckle; 52, sleeve rod; 54, sleeve joint; 55, third spring; 56, air nozzle; 57, movable block; 58, slide rod; 59, movable groove; 60, bearing seat; 61, fourth spring; 62, third storage cavity; 63, limit rod; 64, fifth spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 11As shown, an assembled environmentally friendly sound-absorbing air duct includes a side strip 1; a storage chamber 2 is provided inside the side strip 1, a polyurethane foaming agent is stored inside the storage chamber 2, an injection port 32 is provided at the bottom end of the storage chamber 2, four groups of side strips 1 are provided, an outer plate 21 is provided between each two longitudinal groups of side strips 1, one side of the outer plate 21 is in contact with the inner plate 33, and a plurality of exhaust ports 22 are provided at the center position of the outer plate 21 away from the inner plate 33, a filling noise-absorbing mechanism is provided between the outer plate 21 and the inner plate 33 and the side strip 1, and a filling noise-absorbing mechanism is provided between each two transverse groups of side strips 1 There is an assembled noise reduction mechanism; the filling noise reduction mechanism is used to suppress the noise generated when the airflow hits the inner panel 33, and the assembled noise reduction mechanism is used to further suppress the noise generated by the airflow impact in other directions; the outer panel 21 and the inner panel 33 are fixed to the side strip 1 by screws; when fixing the outer panel 21 and the inner panel 33, it is only necessary to insert the screws into the corresponding holes opened on the side strip 1, tighten the screws so that the screws are threadedly connected to the holes opened on the plug block 23 and the inner panel 33, and the outer panel 21 and the inner panel 33 can be fixed.

[0022] Furthermore, the filling noise reduction mechanism includes a first control component and a second control component, the first control component includes an insert block 23, the insert block 23 is fixedly connected to the upper and lower ends of the outer plate 21, and the insert block 23 is slidably connected to the inside of the first slot 24, the first slot 24 is opened on the side strip 1, the insert block 23 abuts against the main baffle 251, the main baffle 251 is slidably connected to the inside of the first receiving cavity 26, the first receiving cavity 26 is opened inside the side strip 1, and the first receiving cavity 26 is communicated with the first slot 24, the main baffle 251 is fixedly connected to the connecting rod 30 on the side away from the insert block 23, the connecting rod 30 is slidably connected to the inside of the first active cavity 31, the first active cavity 31 is opened inside the side strip 1, and the first active cavity 31 is The cavity 31 is connected with the first receiving cavity 26, and the interior of the first movable cavity 31 is also slidably connected with a plurality of auxiliary baffles 252, and the auxiliary baffles 252 are all fixedly connected with the connecting rod 30. The main baffle 251 is provided with an inclined surface on the side close to the plug block 23, and the rear sides of the main baffle 251 and the auxiliary baffle 252 are both arc-shaped, and the main baffle 251 and the auxiliary baffle 252 are both "L"-shaped as a whole. The injection port 32 is connected with the first receiving cavity 26 and the first movable cavity 31, and the front ends of the main baffle 251 and the auxiliary baffle 252 are both provided with a sliding groove 27, and the interior of the sliding groove 27 is slidably connected with a sliding block 28, and the sliding block 28 is fixedly connected with the inner walls of the first receiving cavity 26 and the first movable cavity 31, and the interior of the sliding groove 27 is also provided with a A first spring 29 is arranged, and a side of the first spring 29 close to the sliding block 28 is fixedly connected to the sliding block 28, and a side of the first spring 29 away from the sliding block 28 is fixedly connected to the inner wall of the sliding groove 27. The second control component includes a second slot 34, and the interior of the second slot 34 is slidably connected to the end of the inner plate 33, and the rear end of the inner plate 33 abuts against the transmission plate 341, and the transmission plate 341 is slidably connected to the interior of the second active cavity 35. The second active cavity 35 is opened at a position close to the rear end of the edge strip 1, and a guide rod 36 is fixedly connected to the interior of the second active cavity 35, and the guide rod 36 passes through the transmission plate 341, and a second spring 37 is wound around the outer side of the guide rod 36, and the transmission plate 341 is away from the inner plate 3 A rack 38 is fixedly connected to one side of 3, and the rack 38 is slidably connected to the inside of the transmission chamber 39, which is opened inside the side bar 1, and the rear end of the transmission chamber 39 is connected to the second active chamber 35, the rack 38 is meshed with a gear 40, the gear 40 is rotatably connected to the inside of the transmission chamber 39, and the gear 40 is meshed with a tooth groove 41, the tooth groove 41 is opened on the side of the upper baffle 42, the upper baffle 42 is slidably connected to the inside of the second receiving chamber 43, the second receiving chamber 43 is opened inside the side bar 1, and the second receiving chamber 43 is connected to the transmission chamber 39 and the injection port 32, one end of the second spring 37 is fixedly connected to the transmission plate 341, and the other end of the second spring 37 is fixedly connected to the inner wall of the second active chamber 35; When the air duct is assembled as a whole, the plug block 23 is first inserted into the first slot 24. When the plug block 23 is inserted into the first slot 24, the plug block 23 squeezes the inclined surface on the main baffle 251, so that the main baffle 251 moves toward the inside of the first receiving chamber 26. When the main baffle 251 moves, the auxiliary baffle 252 is driven to move at the same time by the connecting rod 30. The synchronous movement of the main baffle 251 and the auxiliary baffle 252 releases the first layer of obstruction of the injection port 32, and then the inner plate 33 is inserted into the second slot 34. When the inner plate 33 is inserted into the second slot 34, the inner plate 33 pushes the transmission plate 341 to move so that the transmission plate 341 pulls the second spring 37 to produce elastic deformation and drives the rack 38 to move synchronously. When the rack 38 moves in the transmission chamber 39, it drives the gear 40 to rotate. The rotation of the gear 40 drives the meshing tooth groove 41 to move in the direction of movement of the rack 38 The upper baffle 42 moves in the opposite direction to the inner side of the second storage chamber 43, thereby removing the second layer of obstruction to the injection port 32. At this time, the injection port 32 is no longer blocked, and the polyurethane foaming agent inside the storage chamber 2 enters between the outer plate 21 and the inner plate 33 through the injection port 32, and the air between the outer plate 21 and the inner plate 33 is discharged through the exhaust port 22 until the gap between the outer plate 21 and the inner plate 33 is completely filled with the polyurethane foaming agent. The outer plate 21 and the inner plate 33 made of glass fiber reinforced plastic and the polyurethane foaming agent filled between the outer plate 21 and the inner plate 33 can effectively suppress wind noise and play a role in reducing wind noise; when the main baffle 251 and the auxiliary baffle 252 move, the sliding block 28 slides synchronously inside the sliding groove 27 opened at the front end of the main baffle 251 and the auxiliary baffle 252, and squeezes the first spring 29, causing the first spring 29 to produce elastic deformation.

[0023] Furthermore, the assembled noise reduction mechanism includes an angle bar 44, which is fixedly connected to the inner side of the side bar 1, and a buffer pad 49 is glued to the top of the angle bar 44. An inner sealing plate 45 is arranged at the top of the buffer pad 49. Grooves are provided on both sides of the inner sealing plate 45. A slide rail 46 is slidably connected inside the groove. The slide rail 46 is fixedly connected to the side bar 1. A noise reduction layer 47 is arranged at one end of the inner sealing plate 45 away from the buffer pad 49. The noise reduction layer 47 is fixedly connected to the outer sealing plate 48. The outer sealing plate 48 is slidably connected to the side bar 1. A fixing component is arranged between the inner sealing plate 45 and the angle bar 44, and the fixing component is used to fix the inner sealing plate 45 and adjust the airflow at the same time. The impact force of the inner sealing plate 45 is absorbed and consumed to reduce wind noise. The bottom end of the angle strip 44 is designed in an inner arc shape. The buffer pads 49 are all made of silicone rubber. A gasket is glued to the bottom surface of the slot. The gasket is made of silicone rubber. The fixing component includes a fixing cavity 50. The fixing cavity 50 is opened at one end of the inner sealing plate 45 close to the buffer pad 49. The fixing cavity 50 is engaged with a fixing buckle 51. The end of the fixing buckle 51 away from the fixing cavity 50 is fixedly connected with a sleeve rod 52. The sleeve rod 52 is inserted into the interior of the sleeve connector 54. A third spring 55 is arranged inside the sleeve connector 54. One end of the third spring 55 is fixedly connected to the sleeve rod 52, and the other end of the third spring 55 is fixedly connected to the sleeve rod 52. The end is fixedly connected to the inner wall of the sleeve 54, and the bottom end of the sleeve 54 is provided with an air nozzle 56. The end of the sleeve 54 away from the fixed buckle 51 is also provided with a moving component, and the moving component includes a movable block 57, and the movable block 57 is fixedly connected to the sleeve 54. The movable block 57 is sleeved on the outer side of the slide rod 58, and the slide rod 58 is fixedly connected to the inside of the movable groove 59. The movable groove 59 is provided on the bearing seat 60. The outer side of the slide rod 58 is also wound with a fourth spring 61, and the side of the fourth spring 61 close to the movable block 57 is fixedly connected to the movable block 57, and the side of the fourth spring 61 away from the movable block 57 is fixedly connected to the movable groove 59. On the inner wall, the bearing seat 60 is sleeved on the outer side of the limiting rod 63, and the bottom end of the limiting rod 63 is fixedly connected to the inner wall of the third storage chamber 62. The third storage chamber 62 is opened on the angle bar 44. A fifth spring 64 is also arranged inside the third storage chamber 62. One end of the fifth spring 64 is fixedly connected to the bearing seat 60, and the other end of the fifth spring 64 is fixedly connected to the inner wall of the third storage chamber 62. The noise reduction layer 47 made of rock wool can be used to keep the air transported inside the air duct warm. At the same time, the rock wool material has a loose and porous structure that can effectively absorb noise, thereby achieving a noise reduction effect.During operation, when the inner sealing plate 45 is impacted by the airflow, the fixing buckle 51 is driven to move synchronously through the fixing cavity 50, and the fixing buckle 51 drives the sleeve rod 52 to move inside the sleeve member 54 to pull the third spring 55 to produce elastic deformation, and the impact force is absorbed by the third spring 55. The outer side of the sleeve rod 52 and the inner wall of the sleeve member 54 are in a sealed state. When the sleeve rod 52 moves inside the sleeve member 54, the sleeve rod 52 pushes out or inhales the air inside the sleeve member 54 from the air nozzle 56. In the process of pushing out or inhaling the air, due to the small aperture of the air nozzle 56, a certain resistance is generated, and the airflow impact force absorbed by the third spring 55 is consumed through the resistance, so as to avoid the vibration of the inner sealing plate 45 to generate wind noise, thereby achieving the effect of noise reduction; When installing the inner sealing plate 45, first align the groove opened on the inner sealing plate 45 with the slide rail 46, and then push the inner sealing plate 45 to make the slide rail 46 insert into the groove opened on the inner sealing plate 45. During the movement of the inner sealing plate 45, one end of the inner sealing plate 45 squeezes the inclined surface opened on the fixing buckle 51, so that the fixing buckle 51 moves downward under the action of the squeezing force, pushing the bearing seat 60 to move toward the inside of the third storage chamber 62 (in the initial state, the bottom end of the fixing buckle 51 is close to the inner bottom wall of the sleeve 54, so at this time, the fixing buckle 51 will directly push the bearing seat 60 to move through the sleeve 54 under the action of the squeezing force), and squeezes the fifth spring 64 to make the fifth spring 64 produce elastic deformation. When the inner sealing plate 45 is pushed until the front and rear end surfaces are flush with the front and rear end surfaces of the edge strip 1, the inner sealing plate The first end of the support frame 45 no longer squeezes the fixing buckle 51. At this time, the supporting seat 60 moves upward under the action of the restoring force of the fifth spring 64, and drives the fixing buckle 51 to move to the original position synchronously. During the movement of the fixing buckle 51, the inclined surface of the fixing buckle 51 is blocked by the fixed cavity 50, pushing the fixing buckle 51 to move, so that the fixing buckle 51 drives the sleeve 54 and the movable block 57 to move synchronously through the sleeve rod 52, so that the movable block 57 slides on the outside of the sliding rod 58, and squeezes the fourth spring 61 to cause the fourth spring 61 to produce elastic deformation. When the fixing buckle 51 is squeezed by the fixed cavity 50 and moves a certain distance, the fixed cavity 50 no longer squeezes the fixing buckle 51. At this time, the fixing buckle 51 moves to the original position under the action of the restoring force of the movable block 57 and engages with the fixed cavity 50, thereby fixing the inner sealing plate 45.

[0024] A slope and an arc surface are respectively provided on both sides of the fixing buckle 51, and the arc surface side is used to facilitate the separation of the inner sealing plate 45 and the corner strip 44, and the slope surface side can be engaged with the fixing cavity 50 to fix the inner sealing plate 45. When separating the inner sealing plate 45 and the corner strip 44, it is only necessary to pull the inner sealing plate 45 so that the inner wall of the fixing cavity 50 squeezes the arc surface side of the fixing buckle 51, so that the fixing buckle 51 moves to release the engagement with the fixing cavity 50, and the inner sealing plate 45 and the corner strip 44 can be separated; the outer sealing plate 48 is slidably connected to the side strip 1. When the outer sealing plate 48 needs to be fixed, it is only necessary to insert the screws into the corresponding holes on the outer sealing plate 48 and tighten them to fix the outer sealing plate 48.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An assembled environmentally friendly sound-absorbing air duct, characterized in that: The invention comprises a side strip (1); a storage cavity (2) is provided inside the side strip (1), a polyurethane foaming agent is stored inside the storage cavity (2), an injection port (32) is provided at the bottom end of the storage cavity (2), four groups of side strips (1) are provided, an outer plate (21) is provided between each two groups of side strips (1) in the longitudinal direction, one side of the outer plate (21) is fitted with an inner plate (33), a filling noise reduction mechanism is provided between the outer plate (21) and the inner plate (33) and the side strip (1), and an assembled noise reduction mechanism is provided between each two groups of side strips (1) in the transverse direction; The filling noise reduction mechanism is used to suppress the noise generated when the airflow impacts the inner plate (33), and the assembled noise reduction mechanism is used to further suppress the noise generated by the airflow impact in the upper and lower directions; the filling noise reduction mechanism comprises a first control component and a second control component, the first control component comprises an insert block (23), the insert block (23) is fixedly connected to the upper and lower ends of the outer plate (21), and the insert block (23) is slidably connected to the inside of the first slot (24), the insert block (23) abuts against the main baffle (251), and the main baffle (251) is slidably connected to the inside of the first storage cavity (26), and the first storage cavity (26) is opened inside the side strip (1); The second control assembly comprises a second slot (34), the interior of the second slot (34) is slidably connected to the end of the inner plate (33), the rear end of the inner plate (33) is in contact with a transmission plate (341), the transmission plate (341) is slidably connected to the interior of the second movable cavity (35), a side of the transmission plate (341) away from the inner plate (33) is fixedly connected to a rack (38), the rack (38) is slidably connected to the interior of the transmission cavity (39), the rack (38) is meshed with a gear (40), the gear (40) is rotatably connected to the interior of the transmission cavity (39), and the gear (40) is meshed with a tooth groove (41), and the tooth groove (41) is provided on a side of the upper baffle (42); The assembled noise reduction mechanism comprises an angle bar (44), wherein the angle bar (44) is fixedly connected to the inner side of the side bar (1), a buffer pad (49) is glued to the top end of the angle bar (44), an inner sealing plate (45) is arranged at the top end of the buffer pad (49), and a fixing component is arranged between the inner sealing plate (45) and the angle bar (44), wherein the fixing component is used to fix the inner sealing plate (45) and absorb and consume the impact force of the airflow on the inner sealing plate (45) to reduce wind noise.

2. The assembled environmentally friendly sound-absorbing air duct according to claim 1 is characterized by: A plurality of exhaust ports (22) are provided at a central position of the outer plate (21) on a side away from the inner plate (33).

3. The assembled environmentally friendly sound-absorbing air duct according to claim 2 is characterized by: The first slot (24) is formed on the side strip (1); a guide rod (36) is fixedly connected to the interior of the second movable cavity (35); the guide rod (36) passes through the transmission plate (341); and a second spring (37) is wound around the outer side of the guide rod (36); a first movable cavity (31) is formed inside the side strip (1); the first movable cavity (31) is connected to the first receiving cavity (26); and a plurality of auxiliary baffles (252) are slidably connected to the interior of the first movable cavity (31); the auxiliary baffles (252) are connected to the first receiving cavity (26); 2) are fixedly connected to the connecting rod (30), the transmission chamber (39) is opened inside the side strip (1), and the rear end of the transmission chamber (39) is connected to the second movable chamber (35), and the first storage chamber (26) is connected to the first slot (24), the main baffle (251) is fixedly connected to the connecting rod (30) on the side away from the plug block (23), the connecting rod (30) is slidably connected to the inside of the first movable chamber (31), and the second movable chamber (35) is opened inside the side strip (1) at a position close to the rear end.

4. The assembled environmentally friendly sound-absorbing air duct according to claim 3 is characterized by: A noise reduction layer (47) is provided at one end of the inner sealing plate (45) away from the buffer pad (49), the noise reduction layer (47) is fixedly connected to the outer sealing plate (48), the outer sealing plate (48) is slidably connected to the side strip (1), the upper baffle (42) is slidably connected to the inside of the second storage cavity (43), the second storage cavity (43) is opened inside the side strip (1), both sides of the inner sealing plate (45) are provided with grooves, the inside of the grooves is slidably connected to the slide rails (46), the slide rails (46) are fixedly connected to the side strip (1), the bottom end of the angle strip (44) is designed to be inwardly arc-shaped, the buffer pads (49) are all made of silicone rubber, and a gasket is glued to the bottom surface of the groove, and the gasket is made of silicone rubber.

5. The assembled environmentally friendly sound-absorbing air duct according to claim 4 is characterized in that: A slope is provided on one side of the main baffle (251) close to the insert block (23); the rear sides of the main baffle (251) and the auxiliary baffle (252) are both arc-shaped; and the main baffle (251) and the auxiliary baffle (252) are both L-shaped as a whole; the injection port (32) is in communication with the first receiving chamber (26) and the first active chamber (31).

6. The assembled environmentally friendly sound-absorbing air duct according to claim 5 is characterized by: A sliding groove (27) is provided at the front end of each of the main baffle (251) and the auxiliary baffle (252); a sliding block (28) is slidably connected inside the sliding groove (27); the sliding block (28) is fixedly connected to the inner walls of the first receiving cavity (26) and the first movable cavity (31); a first spring (29) is further provided inside the sliding groove (27); a side of the first spring (29) close to the sliding block (28) is fixedly connected to the sliding block (28), and a side of the first spring (29) away from the sliding block (28) is fixedly connected to the inner wall of the sliding groove (27).

7. The assembled environmentally friendly sound-absorbing air duct according to claim 6 is characterized by: One end of the second spring (37) is fixedly connected to the transmission plate (341), and the other end of the second spring (37) is fixedly connected to the inner wall of the second active chamber (35). The second receiving chamber (43) is connected to the transmission chamber (39) and the injection port (32).

8. The assembled environmentally friendly sound-absorbing air duct according to claim 7 is characterized by: The fixing assembly comprises a fixing cavity (50), wherein the fixing cavity (50) is provided at one end of the inner sealing plate (45) close to the buffer pad (49), the fixing cavity (50) is engaged with a fixing buckle (51), and one end of the fixing buckle (51) away from the fixing cavity (50) is fixedly connected to a sleeve rod (52), the sleeve rod (52) is inserted into the interior of a sleeve connector (54), a third spring (55) is provided inside the sleeve connector (54), one end of the third spring (55) is fixedly connected to the sleeve rod (52), and the other end of the third spring (55) is fixedly connected to the inner wall of the sleeve connector (54), a gas nozzle (56) is provided at the bottom end of the sleeve connector (54), and a moving assembly is also provided at one end of the sleeve connector (54) away from the fixing buckle (51).

9. The assembled environmentally friendly sound-absorbing air duct according to claim 8 is characterized by: The moving assembly comprises a movable block (57), the movable block (57) being fixedly connected to the sleeve (54), the movable block (57) being sleeved on the outside of a slide rod (58), the slide rod (58) being fixedly connected to the inside of a movable groove (59), the movable groove (59) being provided on a bearing seat (60), and a fourth spring (61) being wound around the outside of the slide rod (58), the fourth spring (61) being fixedly connected to the movable block (57) on a side close to the movable block (57), and the fourth spring (61) being away from the movable block (57). ) is fixedly connected to the inner wall of the movable groove (59), the bearing seat (60) is sleeved on the outer side of the limiting rod (63), the bottom end of the limiting rod (63) is fixedly connected to the inner wall of the third receiving chamber (62), the third receiving chamber (62) is opened on the corner strip (44), and a fifth spring (64) is also arranged inside the third receiving chamber (62), one end of the fifth spring (64) is fixedly connected to the bearing seat (60), and the other end of the fifth spring (64) is fixedly connected to the inner wall of the third receiving chamber (62).

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