Bendable silencer of fresh air system

Abstract

The utility model discloses a bendable silencer of a fresh air system, and relates to the technical field of fresh air systems, the bendable silencer comprises a silencing bending mechanism used for realizing the bending of the silencer, the silencing bending mechanism comprises a silencing unit used for silencing; the bending unit is arranged at the right end of the silencing unit and comprises a bending hose, second flanges are fixedly mounted at the two ends of the bending hose, and first flanges are fixedly mounted on the sides, away from the bending hose, of the second flanges; the bending unit is arranged at the bottom of the silencing unit and used for weakening noise generated by vibration of the silencing unit, and the bending hose is fixedly installed between the two second flanges through the hoop, so that the silencing device has the bending effect, pipeline layout can be carried out under the condition that too many walls are not damaged, and the silencing effect is improved. Therefore, when a fresh air system pipeline is arranged, various building structures and spatial layouts can be more flexibly adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air systems, in particular to a bendable silencer device for a fresh air system. Background Art

[0002] As people pay more and more attention to air pollution, fresh air systems have begun to enter people's field of vision and are widely used in residential areas, office places and other places. At present, domestic fresh air systems are mainly divided into one-way flow fresh air systems, two-way flow fresh air systems, heat exchange fresh air systems and floor air supply fresh air systems.

[0003] According to the public number: CN210718013U, a duct silencer for a fresh air system is disclosed, including a noise reduction pipe, a pipe, an air outlet, an air outlet cover and several reducers. The noise reduction pipe is located on the inlet pipe and / or outlet pipe of the fresh air system, and its two ends are connected to the pipe of the fresh air system through reducers. The reducer is provided with one or more reducers, and the opening sizes of the front and rear ends are different. The pipe end of one end of the noise reduction pipe is connected with an air outlet, and the air outlet end is provided with a movable air outlet cover. The utility model duct silencer for a fresh air system can be conveniently installed on the air inlet pipe or the air outlet pipe without destroying the main structure of the fresh air system, effectively isolating noise and absorbing wind noise, with low construction cost and short construction period.

[0004] Based on the above-mentioned prior art, the current bendable silencer of the fresh air system still has the following problems: as an effective air purification device, the fresh air system has been widely used in modern buildings. However, the noise problem generated during the operation of the fresh air system often affects people's living experience. Traditional silencers mostly adopt a fixed structure, which is difficult to adapt to the complex installation environment of the fresh air system pipeline, and the silencer effect is limited. Therefore, the utility model provides a bendable silencer for a fresh air system. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a bendable silencer device for a fresh air system, which solves the following problems existing in the bendable silencer device of the existing fresh air system. As an effective air purification equipment, the fresh air system has been widely used in modern buildings. However, the noise problem generated by the fresh air system during operation often affects people's living experience. Traditional silencers mostly adopt a fixed structure, which is difficult to adapt to the complex installation environment of the fresh air system pipeline, and the silencer effect is limited.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a bendable silencer device of a fresh air system, including a silencer bending mechanism, which is used to realize the bending of the silencer device, and the silencer bending mechanism includes:

[0007] A silencer unit for silencer;

[0008] The bending unit is arranged at the right end of the muffler unit, and comprises a bending hose, both ends of which are fixedly mounted with a second flange, and a first flange is fixedly mounted on a side of the second flange away from the bending hose;

[0009] The vibration reduction unit is arranged at the bottom of the silencer unit and is used to reduce the noise generated by the vibration of the silencer unit.

[0010] Preferably, the bending unit also includes a turntable rotating inside the first flange, four slots are opened inside the turntable, a dial plate is fixedly installed on the top of the turntable, four through holes are opened on one side of the first flange, four clamping columns are fixedly installed on the side of the second flange close to the first flange, and the clamping columns are inserted into the interior of the first flange through the through holes and the slots.

[0011] Preferably, the slot is composed of a circular slot and an arcuate slot, and the circular diameter of the slot is larger than the arcuate diameter of the slot.

[0012] Preferably, the shift plate slides through the top of the first flange and slides inside a slide groove opened at the top of the first flange.

[0013] Preferably, the silencer unit includes a tube body fixedly installed inside the first flange, a sound insulation felt is fixedly installed inside the tube body, a cylinder plate is fixedly installed inside the sound insulation felt, and a plurality of inclined plates are fixedly installed inside the cylinder plate.

[0014] Preferably, the vibration damping unit comprises a mounting frame, two sliding columns are fixedly installed inside the mounting frame, the outer ring sleeve of the sliding column is provided with a vibration damping spring, the outer ring sliding sleeve of the sliding column is provided with a sliding seat, a connecting rod is hingedly installed on the top end of the sliding seat, a connecting seat is hingedly installed on the end of the connecting rod away from the sliding seat, and a fixing clamp is fixedly installed on the top end of the connecting seat.

[0015] The utility model provides a bendable silencer for a fresh air system. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The bendable silencer device of the fresh air system has a bending hose fixedly installed between two second flanges by a clamp, so that the silencer device has a bending effect, and the pipeline can be laid out without damaging too much wall, so that when laying out the pipeline of the fresh air system, it can be more flexibly adapted to various building structures and space layouts.

[0017] (2) The bendable silencer device of the fresh air system has four clamping columns on the second flange that penetrate through the through holes and the circular grooves of the clamping slots and are inserted into the interior of the first flange, so that the second flange fits the first flange. The user pulls the dial forward to drive the turntable to rotate inside the first flange, and the rod body of the clamping column slides into the arc groove of the clamping slot, thereby fixing the position of the second flange, thereby realizing rapid disassembly and assembly of the bent hose, and facilitating replacement of the bent hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a right-side stereoscopic structural diagram of the utility model;

[0019] Figure 2 It is a partial three-dimensional structure diagram of the sectional view of the utility model;

[0020] Figure 3 It is a front sectional stereoscopic structural diagram of the utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the bending unit of the utility model;

[0022] Figure 5 It is a partial three-dimensional structural diagram of the utility model.

[0023] In the figure: 1-silencing bending mechanism, 11-silencing unit, 111-tube body, 112-soundproof felt, 113-cylinder plate, 114-inclined plate, 12-bending unit, 121-bending hose, 122-first flange, 123-turntable, 124-slot, 125-push plate, 126-clamping column, 127-second flange, 128-through hole, 13-vibration damping unit, 131-mounting frame, 132-vibration damping spring, 133-sliding column, 134-sliding seat, 135-connecting rod, 136-connecting seat, 137-fixing clamp. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0026] A bendable silencer device for a fresh air system includes a silencer bending mechanism 1, which is used to realize the bending of the silencer device. The silencer bending mechanism 1 includes:

[0027] A muffler unit 11 for muffler;

[0028] The bending unit 12 is arranged at the right end of the muffler unit 11, and includes a bending hose 121, both ends of the bending hose 121 are fixedly mounted with a second flange 127, and a first flange 122 is fixedly mounted on a side of the second flange 127 away from the bending hose 121;

[0029] The vibration reduction unit 13 is disposed at the bottom of the muffler unit 11 and is used to reduce the noise generated by the vibration of the muffler unit 11 .

[0030] In this embodiment, the bending unit 12 also includes a turntable 123 rotating inside the first flange 122, four slots 124 are opened inside the turntable 123, a dial plate 125 is fixedly installed on the top of the turntable 123, four through holes 128 are opened on one side of the first flange 122, four clamping columns 126 are fixedly installed on the side of the second flange 127 close to the first flange 122, and the clamping columns 126 are inserted into the interior of the first flange 122 through the through holes 128 and the slots 124, the slots 124 are composed of a circular groove and an arc groove, and the circular diameter of the slots 124 is larger than the arc diameter of the slots 124, the dial plate 125 slides through the top of the first flange 122, and slides inside the slide groove opened at the top of the first flange 122.

[0031] By using the bent hose 121 fixedly installed between the two second flanges 127 by a clamp, the silencer has a bending effect, and the pipeline can be laid out without damaging too much wall, so that when laying out the fresh air system pipeline, it can be more flexibly adapted to various building structures and space layouts.

[0032] The four clamping columns 126 on the second flange 127 pass through the through hole 128 and the circular groove of the clamping groove 124 and are inserted into the interior of the first flange 122, so that the second flange 127 fits the first flange 122. The user pulls the dial 125 forward to drive the turntable 123 to rotate inside the first flange 122, and the rod body of the clamping column 126 slides into the arc groove of the clamping groove 124, thereby fixing the position of the second flange 127, thereby realizing quick disassembly and assembly of the bent hose 121, and facilitating the replacement of the bent hose 121.

[0033] In this embodiment, the silencer unit 11 includes a tube body 111 fixedly installed inside the first flange 122, a sound insulation felt 112 fixedly installed inside the tube body 111, a cylinder plate 113 fixedly installed inside the sound insulation felt 112, and a plurality of inclined plates 114 fixedly installed inside the cylinder plate 113.

[0034] The sound insulation felt 112 can effectively isolate noise and reduce the spread of noise. When air contacts the holes of the cylinder plate 113, the sound waves will interact with the edges of the holes, so that the energy of the sound waves is dispersed and weakened, thereby achieving the purpose of reducing noise. Several inclined plates 114 are staggered inside the cylinder plate 113 to change the direction and speed of the airflow, which helps to reduce the turbulence and vortex generated by the airflow when passing through the pipe, thereby reducing noise.

[0035] In this embodiment, the vibration reduction unit 13 includes a mounting frame 131, and two sliding columns 133 are fixedly installed inside the mounting frame 131. The outer ring sleeve of the sliding column 133 is provided with a vibration reduction spring 132, and the outer ring sliding sleeve of the sliding column 133 is provided with a sliding seat 134. The top of the sliding seat 134 is hingedly installed with a connecting rod 135, and the end of the connecting rod 135 away from the sliding seat 134 is hingedly installed with a connecting seat 136, and the top of the connecting seat 136 is fixedly installed with a fixing clamp 137.

[0036] The tube body 111 vibrates, the fixed clamp 137 moves up and down, the connecting seat 136 drives the connecting seat 136 to move synchronously, the connecting seat 136 drives the sliding seat 134 to move in opposite directions through the connecting rod 135, the sliding seat 134 squeezes the vibration-damping spring 132, and the vibration-damping spring 132 pushes the sliding seat 134 through its own elastic force, thereby weakening the vibration of the tube body 111 and reducing vibration noise.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] During operation, first, the four clamping columns 126 on the second flange 127 penetrate the through hole 128 and the circular groove of the clamping groove 124 and are inserted into the interior of the first flange 122, so that the second flange 127 fits the first flange 122. The user pulls the dial 125 forward to drive the turntable 123 to rotate inside the first flange 122, and the rod body of the clamping column 126 slides into the arc groove of the clamping groove 124 to fix the position of the second flange 127, so that the bent hose 121 is installed in the middle of the two silencer units 11, and then the bent hose 121 is folded to a suitable position according to the layout of the pipeline. The device is installed. At this time, wind enters from the silencer unit 11 at the right end for silencer, and then enters the tube body 111 at the left end through the bent hose 121 for silencer output. When the wind flows, the tube body 111 vibrates, the fixed clamp 137 moves up and down, the connecting seat 136 drives the connecting seat 136 to move synchronously, and the connecting seat 136 drives the sliding seat 134 to move in opposite directions through the connecting rod 135. The sliding seat 134 squeezes the shock-absorbing spring 132, and the shock-absorbing spring 132 pushes the sliding seat 134 through its own elastic force, thereby reducing the vibration of the tube body 111 and reducing vibration noise.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bendable silencer for a fresh air system, characterized in that: The invention comprises a muffler bending mechanism (1) for realizing the bending of the muffler device, wherein the muffler bending mechanism (1) comprises: A muffler unit (11) for muffler; A bending unit (12) is arranged at the right end of the muffler unit (11), comprising a bending hose (121), both ends of the bending hose (121) are fixedly mounted with a second flange (127), and a first flange (122) is fixedly mounted on a side of the second flange (127) away from the bending hose (121); The vibration reduction unit (13) is arranged at the bottom of the silencer unit (11) and is used to reduce the noise generated by the vibration of the silencer unit (11).

2. The bendable silencer device for a fresh air system according to claim 1, characterized in that: The bending unit (12) further comprises a turntable (123) rotating inside the first flange (122), four slots (124) being provided inside the turntable (123), a dial plate (125) being fixedly mounted on the top of the turntable (123), four through holes (128) being provided on one side of the first flange (122), four clamping columns (126) being fixedly mounted on a side of the second flange (127) close to the first flange (122), and the clamping columns (126) being inserted into the interior of the first flange (122) through the through holes (128) and the slots (124).

3. The bendable silencer device for a fresh air system according to claim 2, characterized in that: The clamping groove (124) is composed of a circular groove and an arc groove, and the circular diameter of the clamping groove (124) is larger than the arc diameter of the clamping groove (124).

4. The bendable silencer device for a fresh air system according to claim 2, characterized in that: The shifting plate (125) slides through the top of the first flange (122) and slides inside a sliding groove opened at the top of the first flange (122).

5. The bendable silencer device for a fresh air system according to claim 1, characterized in that: The silencer unit (11) comprises a tube body (111) fixedly mounted inside a first flange (122), a sound insulation felt (112) fixedly mounted inside the tube body (111), a cylinder plate (113) fixedly mounted inside the sound insulation felt (112), and a plurality of inclined plates (114) fixedly mounted inside the cylinder plate (113).

6. The bendable silencer device for a fresh air system according to claim 1, characterized in that: The vibration reduction unit (13) comprises a mounting frame (131), two sliding columns (133) are fixedly mounted inside the mounting frame (131), the outer ring sleeve of the sliding column (133) is provided with a vibration reduction spring (132), the outer ring sliding sleeve of the sliding column (133) is provided with a sliding seat (134), the top end of the sliding seat (134) is hingedly mounted with a connecting rod (135), one end of the connecting rod (135) away from the sliding seat (134) is hingedly mounted with a connecting seat (136), and the top end of the connecting seat (136) is fixedly mounted with a fixing clamp (137).

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