CN112984265A - Sectional type resistive ventilation silencer and assembly method thereof - Google Patents
Sectional type resistive ventilation silencer and assembly method thereof Download PDFInfo
- Publication number
- CN112984265A CN112984265A CN202110281806.2A CN202110281806A CN112984265A CN 112984265 A CN112984265 A CN 112984265A CN 202110281806 A CN202110281806 A CN 202110281806A CN 112984265 A CN112984265 A CN 112984265A
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- expansion
- silencer body
- adjusting nut
- expansion silencer
- muffler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0332—Noise absorbers by inserting a body of compressible material in the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a sectional type resistive ventilation silencer and an assembly method thereof, wherein the sectional type resistive ventilation silencer comprises a first expansion silencer body and a second expansion silencer body, the first expansion silencer body and the second expansion silencer body are arranged side by side, one end of the outer side of the first expansion silencer body is rotatably sleeved with a connecting ring, the inner surface of the connecting ring is provided with an internal thread, the outer surface of the second expansion silencer body is provided with an external thread, and the connecting ring and the second expansion silencer body are connected in a matching way through the internal thread and the external thread; through being provided with sound absorption cotton, ventilation pipe, resonant cavity and micropore, avoid the noise elimination form single, be not convenient for fine to the low frequency noise, well, high frequency noise carry out the noise elimination, through being provided with go-between, locating piece, constant head tank, external screw thread, pillar, support, first adjusting nut and second adjusting nut, be convenient for avoid inconvenient the silencer installation, can not be fine according to the user demand, assemble the silencer of different length.
Description
Technical Field
The invention belongs to the technical field of resistive mufflers, and particularly relates to a sectional type resistive ventilation muffler and an assembly method thereof.
Background
Resistive mufflers are a device that prevents sound transmission while allowing airflow therethrough, and are an important measure for eliminating aerodynamic noise. Resistive mufflers primarily utilize porous sound absorbing materials to reduce noise. The sound absorption material is fixed on the inner wall of the airflow channel or arranged in the pipeline according to a certain mode, and sound energy is converted into heat energy due to friction and is dissipated, so that noise transmitted along the pipeline is attenuated along with distance, and the silencer for silencing the noise is formed.
The existing resistive silencer is single in silencing form, inconvenient to perform silencing through a resonance and expansion chamber, poor in low, medium and high frequency silencing effect and poor in noise reduction effect, and a user is also inconvenient to assemble silencers with different lengths according to use requirements, so that the using effect is poor.
Disclosure of Invention
The invention aims to provide a sectional resistive ventilation silencer and an assembly method thereof, and aims to solve the problems that the existing resistive silencer in the background art is single in silencing form, inconvenient to perform silencing through a resonance and expansion chamber, poor in low, medium and high frequency silencing effects on noise, poor in noise reduction effect, inconvenient for a user to assemble silencers with different lengths according to use requirements, and poor in use effect.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a resistive ventilation silencer of sectional type, includes first expansion silencer body and second expansion silencer body, first expansion silencer body sets up side by side with second expansion silencer body, first expansion silencer body outside one end is rotated the cover and is equipped with the go-between, the go-between internal surface is provided with the internal thread, second expansion silencer body surface is provided with the external screw thread, the go-between cooperates through internal thread and external screw thread with second expansion silencer body and is connected, the constant head tank has been seted up to first expansion silencer body lateral wall, second expansion silencer body side surface is provided with the locating piece corresponding to the constant head tank, first expansion silencer body inboard is fixed with inhales the sound cotton, inhale the inboard both ends of sound cotton and all seted up the ventilation hole, inhale the sound cotton inboard and be provided with the resonant cavity, the resonant cavity inboard is fixed with the ventilation pipe, the micropore has been seted up, and the second expansion silencer body is provided with an installation mechanism.
Preferably, installation mechanism includes support, pillar, mount pad, second adjusting nut and first adjusting nut, be fixed with the support on the second expansion muffler body, the support inboard is connected with the pillar through the through-hole, the pillar outside includes second adjusting nut and first adjusting nut, first adjusting nut and second adjusting nut set up side by side along vertical direction, the pillar top is fixed with the mount pad, the mounting hole has been seted up to the mount pad inboard.
Preferably, the cross section of the support is in a shape like a Chinese character 'ji', and the support and the mounting seat are fixed through welding.
Preferably, a connecting hole is formed in the middle of the inner side of the mounting seat, and the connecting hole is circular.
Preferably, the inner diameter of the center of the second expansion silencer body is one time to three times of the inner diameters of the two ends, and the outer surface of the connecting ring is provided with anti-skid grains.
Preferably, the cross section of the positioning block is fan-shaped, and four positioning blocks are uniformly distributed along the circumferential direction of the second expansion silencer body.
Preferably, the inner surface of the resonant cavity is provided with a plurality of grooves which are arranged at equal intervals along the long edge of the resonant cavity.
Preferably, the thickness of the vent pipe is three millimeters to fifteen millimeters, and the inner diameter of the micropore is one millimeter to six millimeters.
An assembling method of a sectional type resistive ventilation silencer comprises the following steps:
a. the sound absorption cotton is adhered and fixed on the inner side of the first expansion silencer body through glue, and then the positioning block at one end of the second expansion silencer body is inserted into the inner side of the positioning groove;
b. rotating the connecting ring to one side of the second expansion silencer body to ensure that the first expansion silencer body and the second expansion silencer body are connected in a matching way through the connecting ring and the external thread;
c. the mounting seat and an external object are fixed through the bolts and the mounting holes, the first adjusting nut and the second adjusting nut are unscrewed, the support can move along the height direction of the support, and the interval between the second expansion silencer body and the external object is adjusted;
d. after adjustment, the first adjusting nut and the second adjusting nut are respectively screwed, so that the bracket and the support column can be fixed, and a plurality of first expansion silencer bodies and a plurality of second expansion silencer bodies are kept in the same straight line in the horizontal direction;
e. a user can further fix the mounting seat and an external object through the steel wire rope through the connecting hole, and the user can assemble the first expansion silencer bodies and the second expansion silencer bodies according to actual needs, so that the silencing length is prolonged, and the silencing effect is improved.
Compared with the prior art, the invention has the beneficial effects that:
(1) through being provided with and inhale sound cotton, ventilation pipe, resonant cavity and micropore, be convenient for carry out multiple noise elimination through hindering nature, resonance, expansion chamber, improve noise elimination effect, avoid the noise elimination form single, be not convenient for fine to the low frequency noise, the noise elimination is carried out to well, high frequency noise, is convenient for increase noise elimination effect.
(2) Through being provided with go-between, locating piece, constant head tank, external screw thread, pillar, support, first adjusting nut and second adjusting nut, be convenient for avoid inconvenient the silencer installation, can not be fine according to the user demand, assemble the silencer of different length, be convenient for assemble according to actual need, increase the device effect, easily be connected with outside object simultaneously, increase installation convenience.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic view of the positioning block structure of the present invention;
FIG. 4 is a schematic cross-sectional view at B of FIG. 1 according to the present invention;
in the figure: 1. a first expansion muffler body; 2. a second expansion muffler body; 3. a mounting seat; 4. connecting holes; 5. a pillar; 6. a support; 7. a connecting ring; 8. a resonant cavity; 9. sound-absorbing cotton; 10. a vent hole; 11. micropores; 12. a vent pipe; 13. a groove; 14. an external thread; 15. positioning a groove; 16. positioning blocks; 17. a first adjusting nut; 18. a second adjusting nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a sectional type resistance ventilation silencer comprises a first expansion silencer body 1 and a second expansion silencer body 2, wherein the first expansion silencer body 1 and the second expansion silencer body 2 are arranged side by side, one end of the outer side of the first expansion silencer body 1 is rotatably sleeved with a connecting ring 7, the inner surface of the connecting ring 7 is provided with internal threads, so that the first expansion silencer body 1 and the second expansion silencer body 2 are conveniently connected, the outer surface of the second expansion silencer body 2 is provided with external threads 14, the connecting ring 7 and the second expansion silencer body 2 are connected in a matching way through the internal threads and the external threads 14, so that the first expansion silencer body 1 and the second expansion silencer body 2 are conveniently and quickly fixed, one side wall of the first expansion silencer body 1 is provided with a positioning groove 15, one side surface of the second expansion silencer body 2 is provided with a positioning block 16 corresponding to the positioning groove 15, so that the rotation between the first expansion silencer body 1 and the second expansion silencer body 2 is conveniently, the sound absorption cotton 9 is fixed on the inner side of the first expansion muffler body 1, noise can be conveniently absorbed through resistance, the two ends of the inner side of the sound absorption cotton 9 are respectively provided with a vent hole 10, the inner side of the sound absorption cotton 9 is provided with a resonant cavity 8, the inner side of the resonant cavity 8 is fixed with a ventilation pipe 12, the inner side of the ventilation pipe 12 is provided with a micropore 11, resonance can be conveniently improved, the noise elimination effect on the noise can be increased, and the second expansion muffler body 2 is provided with an installation.
Preferably, the mounting mechanism comprises a support 6, a support column 5, a mounting base 3, a second adjusting nut 18 and a first adjusting nut 17, the support 6 is fixed on the second expansion muffler body 2, the support column 5 is connected to the inner side of the support 6 through a through hole, the second adjusting nut 18 and the first adjusting nut 17 are arranged on the outer side of the support column 5, the distance between the second expansion muffler body 2 and an external object can be conveniently adjusted, the plurality of second expansion muffler bodies 2 and the first expansion muffler body 1 can be conveniently kept in the same straight line after mounting, the first adjusting nut 17 and the second adjusting nut 18 are arranged side by side in the vertical direction, the mounting base 3 is fixed at the top end of the support column 5, and mounting holes are formed in the inner side of the mounting base 3, so that the second expansion muffler body 2 can be fixedly connected with the external object.
Preferably, 6 cross sections of support are "ji" style of calligraphy, and pillar 5 passes through welded fastening with mount pad 3, is convenient for improve the fastness of connection.
Preferably, connecting hole 4 has been seted up at the inboard middle part of mount pad 3, and connecting hole 4 is circular, is convenient for make mount pad 3 and external object fix through the rope.
Preferably, the inner diameter of the center of the second expansion silencer body 2 is one time to three times of the inner diameters of the two ends, and the outer surface of the connecting ring 7 is provided with anti-skid grains, so that the anti-skid effect when the connecting ring 7 rotates is improved.
Preferably, the cross section of the positioning block 16 is fan-shaped, and four positioning blocks 16 are uniformly distributed along the circumferential direction of the second expansion muffler body 2, so that the first expansion muffler body 1 and the second expansion muffler body 2 can be better connected.
Preferably, the inner surface of the resonant cavity 8 is provided with a plurality of grooves 13, so that a better reflection area is facilitated, and a noise elimination effect on noise is improved, and the grooves 13 are equidistantly arranged along the long side of the resonant cavity 8.
Preferably, the thickness of the ventilation pipe 12 is three millimeters to fifteen millimeters, and the inner diameter of the micropore 11 is one millimeter to six millimeters, so that better resonance noise elimination effect is facilitated.
An assembling method of a sectional type resistive ventilation silencer comprises the following steps:
a. the sound absorption cotton 9 is adhered and fixed on the inner side of the first expansion silencer body 1 through glue, and then a positioning block 16 at one end of the second expansion silencer body 2 is inserted into the inner side of the positioning groove 15;
b. rotating the connecting ring 7 to one side of the second expansion muffler body 2 to ensure that the first expansion muffler body 1 and the second expansion muffler body 2 are connected in a matching way through the connecting ring 7 and the external thread 14;
c. the mounting base 3 and an external object are fixed through bolts and mounting holes, the first adjusting nut 17 and the second adjusting nut 18 are unscrewed, and then the bracket 6 can move along the height direction of the strut 5 to adjust the interval between the second expansion silencer body 2 and the external object;
d. after adjustment, the first adjusting nut 17 and the second adjusting nut 18 are respectively screwed, so that the bracket 6 and the support post 5 can be fixed, and the plurality of first expansion silencer bodies 1 and the plurality of second expansion silencer bodies 2 can be kept in the same straight line in the horizontal direction;
e. through the connecting hole 4, a user can further fix the mounting base 3 and an external object through the steel wire rope, and the user can assemble the first expansion silencer body 1 and the second expansion silencer body 2 according to actual needs, so that the silencing length is prolonged, and the silencing effect is improved.
In summary, the sound absorption cotton, the ventilation pipe, the resonant cavity and the micropores are arranged, so that multiple noise elimination can be conveniently carried out through the resistance, resonance and expansion chambers, the noise elimination effect is improved, the single noise elimination form is avoided, low-frequency noise and medium-frequency noise cannot be eliminated well, the noise elimination effect is conveniently increased, the connecting ring, the positioning block, the positioning groove, the external thread, the strut, the bracket, the first adjusting nut and the second adjusting nut are arranged, the inconvenience in mounting the silencer is avoided, silencers with different lengths cannot be assembled well according to use requirements, and the assembly can be conveniently carried out according to actual requirements.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a resistive ventilation silencer of sectional type, includes first expansion silencer body (1) and second expansion silencer body (2), first expansion silencer body (1) sets up its characterized in that side by side with second expansion silencer body (2): the cover is equipped with go-between (7) to first expansion muffler body (1) outside one end rotation cover, go-between (7) internal surface is provided with the internal thread, second expansion muffler body (2) surface is provided with external screw thread (14), go-between (7) cooperate through internal thread and external screw thread (14) with second expansion muffler body (2) to be connected, constant head tank (15) have been seted up to first expansion muffler body (1) a lateral wall, second expansion muffler body (2) a lateral surface is provided with locating piece (16) corresponding to constant head tank (15), first expansion muffler body (1) inboard is fixed with inhales sound cotton (9), inhale ventilation hole (10) all seted up at sound cotton (9) inboard both ends, inhale sound cotton (9) inboard and be provided with resonant cavity (8), resonant cavity (8) inboard is fixed with ventilation pipe (12), micropores (11) are formed in the inner side of the ventilation pipe (12), and an installation mechanism is arranged on the second expansion silencer body (2).
2. The resistive ventilation muffler of claim 1, wherein: installation mechanism includes support (6), pillar (5), mount pad (3), second adjusting nut (18) and first adjusting nut (17), be fixed with support (6) on the second expansion muffler body (2), support (6) inboard is connected with pillar (5) through the through-hole, the pillar (5) outside includes second adjusting nut (18) and first adjusting nut (17), vertical direction sets up side by side is followed with second adjusting nut (18) in first adjusting nut (17), pillar (5) top is fixed with mount pad (3), the mounting hole has been seted up to mount pad (3) inboard.
3. The segmented resistive ventilation muffler of claim 2, wherein: the cross section of the support (6) is in a shape like a Chinese character 'ji', and the support column (5) is fixed with the mounting seat (3) through welding.
4. The segmented resistive ventilation muffler of claim 2, wherein: connecting holes (4) are formed in the middle of the inner side of the mounting seat (3), and the connecting holes (4) are circular.
5. The resistive ventilation muffler of claim 1, wherein: the inner diameter of the center of the second expansion silencer body (2) is one time to three times of the inner diameters of the two ends, and anti-skid grains are arranged on the outer surface of the connecting ring (7).
6. The resistive ventilation muffler of claim 1, wherein: the cross section of the positioning block (16) is fan-shaped, and four positioning blocks (16) are uniformly distributed along the circumferential direction of the second expansion silencer body (2).
7. The resistive ventilation muffler of claim 1, wherein: the inner surface of the resonant cavity (8) is provided with a plurality of grooves (13), and the grooves (13) are arranged along the long edge of the resonant cavity (8) at equal intervals.
8. The resistive ventilation muffler of claim 1, wherein: the thickness of the ventilation pipe (12) is three millimeters to fifteen millimeters, and the inner diameter of the micropore (11) is one millimeter to six millimeters.
9. The assembling method of the sectional type resistive ventilation silencer is characterized by comprising the following steps: the method comprises the following steps:
a. the sound absorption cotton (9) is adhered and fixed on the inner side of the first expansion silencer body (1) through glue, and then a positioning block (16) at one end of the second expansion silencer body (2) is inserted into the inner side of the positioning groove (15);
b. rotating the connecting ring (7) to one side of the second expansion silencer body (2) to enable the first expansion silencer body (1) and the second expansion silencer body (2) to be connected in a matching mode through the connecting ring (7) and the external threads (14);
c. the mounting base (3) and an external object are fixed through bolts and mounting holes, the first adjusting nut (17) and the second adjusting nut (18) are unscrewed, at this time, the bracket (6) can move along the height direction of the support (5), and the interval between the second expansion silencer body (2) and the external object is adjusted;
d. after adjustment, the first adjusting nut (17) and the second adjusting nut (18) are respectively screwed, so that the bracket (6) and the support column (5) can be fixed, and a plurality of first expansion silencer bodies (1) and a plurality of second expansion silencer bodies (2) are kept in the same straight line in the horizontal direction;
e. through the connecting hole (4), a user can further fix the mounting seat (3) and an external object through the steel wire rope, and the user can assemble the first expansion silencer body (1) and the second expansion silencer body (2) according to actual requirements, so that the silencing length is prolonged, and the silencing effect is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281806.2A CN112984265A (en) | 2021-03-16 | 2021-03-16 | Sectional type resistive ventilation silencer and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281806.2A CN112984265A (en) | 2021-03-16 | 2021-03-16 | Sectional type resistive ventilation silencer and assembly method thereof |
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| CN112984265A true CN112984265A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110281806.2A Pending CN112984265A (en) | 2021-03-16 | 2021-03-16 | Sectional type resistive ventilation silencer and assembly method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231567A (en) * | 2023-02-15 | 2023-12-15 | 江苏东泽环保科技有限公司 | Disk silencer for induced draft fan |
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