CN220303860U - Assembled silencer static pressure device - Google Patents
Assembled silencer static pressure device Download PDFInfo
- Publication number
- CN220303860U CN220303860U CN202321787142.8U CN202321787142U CN220303860U CN 220303860 U CN220303860 U CN 220303860U CN 202321787142 U CN202321787142 U CN 202321787142U CN 220303860 U CN220303860 U CN 220303860U
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- China
- Prior art keywords
- sound
- static pressure
- absorbing
- pressure box
- side wall
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- 230000003068 static effect Effects 0.000 title claims abstract description 55
- 230000003584 silencer Effects 0.000 title description 2
- 229920000742 Cotton Polymers 0.000 claims abstract description 43
- 230000008030 elimination Effects 0.000 claims abstract description 11
- 238000003379 elimination reaction Methods 0.000 claims abstract description 11
- 230000030279 gene silencing Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 230000001603 reducing effect Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to an assembled noise elimination static pressure device, which relates to the static pressure box field, and comprises a static pressure box body, an air outlet and an air inlet, wherein the air outlet is arranged on the lower end surface of the static pressure box body, the air inlet is arranged on the left end surface of the static pressure box body, an inner cavity of the static pressure box body is provided with a noise elimination cavity, a layer of sound insulation layer is fixedly arranged in the inner side wall of the noise elimination cavity, mounting plates are fixedly arranged on the front side wall and the rear side wall of the noise elimination cavity respectively, a sound absorption cotton body is arranged between the two mounting plates, the left end surface of the sound absorption cotton body is provided with an inward concave arc groove.
Description
Technical Field
The utility model relates to the field of static pressure boxes, in particular to an assembled silencing static pressure device.
Background
The static pressure box is a necessary accessory for reducing dynamic pressure, increasing static pressure, stabilizing airflow and reducing airflow vibration of the air supply system, can enable the air supply effect to be more ideal, is a device which can not only allow airflow to pass through, but also effectively prevent or weaken sound energy from spreading outwards, can ensure the quiet surrounding environment and increase the living comfort of people;
the noise reduction effect of the current static pressure box is not obvious when facing to the air flow with higher flow speed, especially when the air supply system is just started, the impact sound of the air flow in the static pressure box at the moment of just starting is huge, larger noise can be generated, and the living comfort of people is seriously influenced.
Disclosure of Invention
The utility model aims to provide an assembled silencing static pressure device, which solves the problems in the background art.
The utility model solves the technical problems by adopting the following technical scheme:
the utility model provides an assembled noise elimination static pressure ware, includes static pressure box, air outlet and air intake, the air outlet is installed the terminal surface under the static pressure box, the air intake is installed static pressure box left end face, the inner chamber of static pressure box sets up to the amortization chamber, fixedly provided with one deck puigging in the amortization chamber inside wall, fixedly provided with mounting panel respectively on the side wall around the amortization chamber, two be provided with between the mounting panel and inhale the sound cotton body, inhale the cotton body left end face and be provided with indent circular arc groove, inhale the cotton body outer end face of sound and take the circular arc shape, inhale the cotton body's indent circular arc groove face on the equidistance distribution be provided with the bleeder vent, and the bleeder vent link up inhale the circular arc face of the cotton outer end of sound, inhale the cotton body up end face of sound fixedly is provided with the mount, both sides fixedly connected with "" shape frame respectively around the mount, every "" shape frame slidable mounting is on corresponding mounting panel, be equidistant setting up respectively on the side wall about the amortization chamber and install the sound board.
Preferably, the upper end surface and the lower end surface of the mounting plate are respectively provided with a sliding groove, the inner side surfaces of the -shaped frames are respectively and fixedly connected with sliding blocks, each sliding block is respectively and slidably arranged in the corresponding sliding groove, and a buffer spring is connected between each sliding block and the corresponding rear side wall of the sliding groove.
Preferably, one section of the sound absorbing plate connected with the inner side wall of the silencing cavity is horizontal, and the other section of the sound absorbing plate is in a cambered surface hook shape.
Preferably, a stepped groove is formed in the horizontal section of the sound absorbing plate, and a honeycomb groove is uniformly distributed on each step surface in the stepped groove.
Preferably, the bottom of the silencing cavity is provided with sound-absorbing cotton blocks at the left side and the right side of the air outlet respectively, the sound-absorbing cotton blocks at the left side are in a convex cambered surface shape, and the sound-absorbing cotton blocks at the right side are in a triangular inclined surface shape.
Preferably, the outer end surfaces of the static pressure box body are equidistantly distributed and fixedly provided with three outer reinforcing ribs, and the outer reinforcing ribs are obliquely and circumferentially coated on the static pressure box body.
The utility model has the advantages and positive effects that:
1. according to the utility model, the sound-absorbing cotton body is used for buffering the air flow to a certain extent, then the air holes are used for diversion and speed reduction, and meanwhile, the sound-absorbing effect of the sound-absorbing cotton body is added, so that the air flow with the initial large flow speed is dispersed into the air holes for noise absorption, the noise-reducing effect is higher, and meanwhile, the flow speed of the air flow is reduced, so that the noise generated by the initial air flow is greatly reduced.
2. The utility model improves the contact area with the air flow by utilizing the dual functions of the stepped surface of the sound absorbing plate and the honeycomb grooves, thereby improving the sound absorbing effect, and simultaneously, the speed reducing effect on the air flow is more obvious, thereby further ensuring the silencing effect of the static pressure box.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall three-dimensional structure of an assembled muffler static pressure device of the present utility model;
FIG. 2 is a schematic diagram of the front view internal structure of the assembled muffling static pressure device of the present utility model;
FIG. 3 is a schematic view of the installation position of the sound absorbing cotton body 15 of the assembled muffler and static pressure device component of the present utility model;
fig. 4 is a schematic structural view of a sound-absorbing cotton body 15 in the assembled muffler static pressure device of the present utility model;
FIG. 5 is a structural representation of the acoustic panel 16 in the assembled muffling static pressure apparatus of the present utility model;
fig. 6 is a schematic view of the rear side three-dimensional structure of the assembled muffler static pressure device of the present utility model.
The index marks in the drawings are as follows: a static pressure tank 10; an air outlet 11; an air inlet 12; an outer reinforcing rib 13; a sound deadening chamber 14; a sound-absorbing cotton body 15; an acoustic panel 16; a sound-absorbing cotton block 17; a sound insulation layer 18; a fixing frame 19; a "" shaped frame 20; a mounting plate 21; a chute 22; a slider 23; and a buffer spring 24.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The utility model will now be described in detail with reference to fig. 1-6, wherein for convenience of description, the orientations described below are now defined as follows: the vertical, horizontal, vertical, front-to-back directions described below are the same as the vertical, horizontal, vertical, and horizontal directions of the view of fig. 1. Fig. 1 is a front view of the device of the present utility model, and the direction of fig. 1 is the same as the vertical, horizontal, vertical, front-to-back, horizontal, and horizontal directions of the device of the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically linked, may be directly linked, may be indirectly linked through an intermediary, and may be in communication with the interior of at least two elements or in an interaction relationship between at least two elements, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:
referring to fig. 1-6, an embodiment of the present utility model is provided: the assembled noise elimination static pressure device comprises a static pressure box body 10, an air outlet 11 and an air inlet 12, wherein the air outlet 11 is arranged on the lower end face of the static pressure box body 10, the air inlet 12 is arranged on the left end face of the static pressure box body 10, an inner cavity of the static pressure box body 10 is provided with a noise elimination cavity 14, a layer of noise insulation layer 18 is fixedly arranged in the inner side wall of the noise elimination cavity 14 to perform preliminary noise reduction and sound insulation, a sound absorption cotton body 15 is arranged at the horizontal position of the air inlet, mounting plates 21 are respectively fixedly arranged on the front side wall and the rear side wall of the noise elimination cavity 14, a fixing frame 19 is fixedly arranged on the upper end face of the sound absorption cotton body 15, -shaped frames 20 are respectively fixedly connected to the front side and the rear side of the fixing frame 19, each -shaped frame 20 is slidably arranged on the corresponding mounting plate 21, so that the sound absorption cotton body 15 is slidably arranged between the two mounting plates 21, the left end face of the sound-absorbing cotton body 15 is provided with an inward concave circular arc groove, the outer end face of the sound-absorbing cotton body 15 is in a circular arc shape, ventilation holes are distributed on the inward concave circular arc groove face of the sound-absorbing cotton body 15 at equal intervals, the ventilation holes penetrate through the circular arc face of the outer end of the sound-absorbing cotton body 15, so that when air flows enter the interior of the silencing cavity 14 through the air inlet 12, initial air flow velocity is high, the air flows impact into the inward concave circular arc groove of the sound-absorbing cotton body 15, the ventilation holes are utilized for diversion and speed reduction, meanwhile, the sound-absorbing effect of the sound-absorbing cotton body 15 is added, the air flows with the initial high flow velocity are dispersed into the ventilation holes for noise absorption, the noise generated by the initial air flows can be reduced, meanwhile, the noise generated by the initial air flows is greatly reduced, and the sound-absorbing plates 16 are respectively arranged on the left side wall and the right side wall of the silencing cavity 14 at equal intervals, the air flow with speed reduction is enabled to circulate through the sound absorbing plate 16 again to absorb sound and reduce noise, so that the noise elimination effect of the static pressure box is effectively ensured.
In this embodiment, in order to make the initial high-flow-rate airflow impact on the sound-absorbing cotton body 15 to perform better buffering and deceleration, referring to fig. 2 and 3, the upper end surface and the lower end surface of the mounting plate 21 are respectively provided with a sliding groove 22, the inner side surfaces of the "" frames 20 are respectively fixedly connected with sliding blocks 23, each sliding block 23 is respectively slidably mounted in the corresponding sliding groove 22, and a buffer spring 24 is connected between each sliding block 23 and the rear side wall of the corresponding sliding groove 22, so that when the airflow impacts in the concave circular arc groove of the sound-absorbing cotton body 15, the airflow can be buffered.
Referring to fig. 2 and 5, it is worth mentioning that a section of the sound absorbing plate 16 connected with the inner side wall of the silencing cavity 14 is horizontal, another section is in a cambered surface hook shape, a stepped groove is formed in the horizontal section of the sound absorbing plate 16, and a honeycomb groove is uniformly distributed on each stepped surface in the stepped groove, when the airflow flows through the stepped surfaces, the contact area with the airflow is increased by the dual action of the stepped surfaces and the honeycomb grooves, the sound absorbing effect is further improved, meanwhile, the speed reducing effect on the airflow is more obvious, and thus the silencing effect of the static pressure box is further ensured.
In addition, in one embodiment, the bottom of the silencing cavity 14 is provided with sound-absorbing cotton blocks 17 at the left and right sides of the air outlet 11, the sound-absorbing cotton blocks 17 at the left side are in a convex arc shape, the sound-absorbing cotton blocks 17 at the right side are in a triangular slope shape, and the air flow is effectively guided into the air outlet 11.
In addition, in an embodiment, three outer reinforcing ribs 13 are fixedly distributed on the outer side end face of the static pressure box body 10 at equal intervals, and the outer reinforcing ribs 13 are obliquely and circumferentially coated on the static pressure box body 10, so that the static pressure box is further stabilized, and the overall strength and stability of the static pressure box are improved.
During implementation, the air flow enters through the air inlet 12, firstly, the air flow is impacted into the concave circular arc groove of the sound absorbing cotton body 15, certain buffering can be performed, then the air holes are utilized to split and reduce speed, meanwhile, the sound absorbing effect of the sound absorbing cotton body 15 is added, the air flow with the initial large flow speed is dispersed into the air holes to perform noise absorption, the high noise reducing effect can be achieved, meanwhile, the flow speed of the air flow can be reduced, the noise generated by the initial air flow is greatly reduced, and when the subsequent air flow flows through the stepped surface of the sound absorbing plate 16, the double effect of the stepped surface and the honeycomb groove is utilized, the contact area with the air flow is increased, the sound absorbing effect is further improved, meanwhile, the speed reducing effect on the air flow is more obvious, and therefore the noise eliminating effect of the static pressure box is further ensured.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.
Claims (6)
1. The utility model provides an assembled noise elimination static pressure ware, includes static pressure box (10), air outlet (11) and air intake (12), air outlet (11) are installed terminal surface under static pressure box (10), air intake (12) are installed static pressure box (10) left end face, the inner chamber of static pressure box (10) sets up to amortization chamber (14), its characterized in that: the novel sound-absorbing structure is characterized in that a sound-insulating layer (18) is fixedly arranged in the inner side wall of the sound-absorbing cavity (14), mounting plates (21) are fixedly arranged on the front side wall and the rear side wall of the sound-absorbing cavity (14) respectively, sound-absorbing cotton bodies (15) are arranged between the two mounting plates (21), the left end face of each sound-absorbing cotton body (15) is provided with a concave circular arc groove, the outer end faces of the sound-absorbing cotton bodies (15) are arc-shaped, air holes are distributed on the concave circular arc groove faces of the sound-absorbing cotton bodies (15) at equal intervals, the air holes penetrate through the arc faces of the outer ends of the sound-absorbing cotton bodies (15), fixing frames (19) are fixedly arranged on the upper end faces of the sound-absorbing cotton bodies (15), fixing frames (20) are fixedly connected to the front side and the rear side faces of the fixing frames (19) respectively, each sound-absorbing cotton body () is slidably mounted on the corresponding mounting plates (21), and sound-absorbing plates (16) are respectively arranged on the left side wall and the right side wall of the sound-absorbing cavity (14) at equal intervals.
2. The assembled muffling static pressure apparatus of claim 1, wherein: the upper end face and the lower end face of the mounting plate (21) are respectively provided with a sliding groove (22), the inner side faces of the -shaped frames (20) are respectively fixedly connected with sliding blocks (23), each sliding block (23) is respectively and slidably arranged in the corresponding sliding groove (22), and a buffer spring (24) is respectively connected between each sliding block (23) and the corresponding rear side wall of the sliding groove (22).
3. The assembled muffling static pressure apparatus of claim 1, wherein: one section of the sound absorbing plate (16) connected with the inner side wall of the silencing cavity (14) is horizontal, and the other section is in a cambered surface hook shape.
4. A fitted muffling static pressure apparatus as claimed in claim 3, wherein: the horizontal section of the sound absorbing plate (16) is provided with a stepped groove, and each stepped surface in the stepped groove is uniformly provided with a honeycomb groove.
5. The assembled muffling static pressure apparatus of claim 1, wherein: the bottom of the silencing cavity (14) is provided with sound-absorbing cotton blocks (17) at the left side and the right side of the air outlet (11), the sound-absorbing cotton blocks (17) at the left side are in a convex cambered surface shape, and the sound-absorbing cotton blocks (17) at the right side are in a triangular inclined surface shape.
6. The assembled muffling static pressure apparatus of claim 1, wherein: the static pressure box body (10) is characterized in that three outer reinforcing ribs (13) are fixedly distributed on the outer side end face of the static pressure box body (10) at equal intervals, and the outer reinforcing ribs (13) are obliquely and circumferentially coated on the static pressure box body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321787142.8U CN220303860U (en) | 2023-07-07 | 2023-07-07 | Assembled silencer static pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321787142.8U CN220303860U (en) | 2023-07-07 | 2023-07-07 | Assembled silencer static pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220303860U true CN220303860U (en) | 2024-01-05 |
Family
ID=89344489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321787142.8U Active CN220303860U (en) | 2023-07-07 | 2023-07-07 | Assembled silencer static pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220303860U (en) |
-
2023
- 2023-07-07 CN CN202321787142.8U patent/CN220303860U/en active Active
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