CN213421335U - Ventilation equipment of low noise operation - Google Patents
Ventilation equipment of low noise operation Download PDFInfo
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- CN213421335U CN213421335U CN202022587409.1U CN202022587409U CN213421335U CN 213421335 U CN213421335 U CN 213421335U CN 202022587409 U CN202022587409 U CN 202022587409U CN 213421335 U CN213421335 U CN 213421335U
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- connecting pipe
- lateral wall
- low noise
- composite sheet
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Abstract
The utility model belongs to the technical field of the ventilation technique and specifically relates to a ventilation equipment of low noise operation is related to, and it includes the box and installs the centrifugal fan in the box, has seted up the through-hole on the box, be connected with the connecting pipe on the through-hole, be connected with on the connecting pipe lateral wall and inhale the sound composite sheet, be connected with on the connecting pipe lateral wall and be used for will inhaling the setting element that the sound composite sheet was located on the connecting pipe lateral wall, the setting element includes the holding ring, set up on the holding ring and attract composite sheet grafting complex spacing groove, holding ring and box lateral wall threaded. This application has the convenience and goes on the effect of changing to inhaling the sound composite sheet.
Description
Technical Field
The application relates to the field of ventilation technology, in particular to ventilation equipment operating at low noise.
Background
The ventilation equipment mainly comprises a centrifugal fan and an axial flow fan. The centrifugal fan is a driven fluid machine which increases gas pressure and discharges gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
The patent of chinese utility model with the publication number CN210919557U discloses a amortization centrifugal fan impeller, including the centrifugal fan subassembly, the bottom fixedly connected with bottom plate of centrifugal fan subassembly, the top fixedly connected with whistle box of bottom plate.
The circular slot has been opened to the front side of whistle box, and the front side fixedly connected with of circular slot inhales the sound composite sheet, inhales the inner wall fixedly connected with dust screen of sound composite sheet, and the material of dust screen is the metal, through the setting of dust screen, can filter the dust, avoids the dust to enter into the inside of whistle box, and the fixed surface that inhales the sound composite sheet is connected with the amortization cotton.
With respect to the related art in the above, the inventors consider that: along with inhaling the live time of sound composite sheet and becoming long, inhale the sound composite sheet and can take place the ageing of certain degree, and then cause and inhale the absorption effect reduction of sound composite sheet to the noise, need change the sound composite sheet this moment, and inhale the sound composite sheet and be fixed in the circular slot on, lead to inhaling the change of sound composite sheet comparatively troublesome.
SUMMERY OF THE UTILITY MODEL
In order to change the sound composite sheet for convenience, the application provides a ventilation equipment of low noise operation.
The application provides a ventilation equipment of low noise operation adopts following technical scheme:
the utility model provides a ventilation equipment of low noise operation, includes the box and installs the centrifugal fan in the box, has seted up the through-hole on the box, be connected with the connecting pipe on the through-hole, be connected with on the connecting pipe lateral wall and inhale the sound composite sheet, be connected with on the connecting pipe lateral wall and be used for will inhaling the setting element that the sound composite sheet was positioned on the connecting pipe lateral wall, the setting element includes the holding ring, set up on the holding ring and attract composite sheet grafting complex spacing groove, holding ring and box lateral wall threaded connection.
Through adopting above-mentioned technical scheme, when inhaling the ageing needs of sound composite sheet and changing, will fix a position the ring and twist out outside the box, take off old sound composite sheet of inhaling, change go up new sound composite sheet of inhaling, again with the holding ring with box lateral wall threaded connection can, the change that the messenger inhaled the sound composite sheet is comparatively convenient simple.
Optionally, be provided with on the holding ring and will inhale the sound composite sheet and support tight subassembly of supporting on the connecting pipe lateral wall, support tight subassembly including sliding the drive assembly that connects in the piece and the drive of supporting of spacing inslot and support the piece and remove to being close to the connecting pipe lateral wall direction.
Through adopting above-mentioned technical scheme, when connecting the sound composite sheet thickness of inhaling on the connecting pipe lateral wall different, will inhale the sound composite sheet and support tightly on the connecting pipe lateral wall through supporting tight subassembly. Inhale the sound composite sheet and support tightly in the in-process of connecting pipe lateral wall, drive through drive assembly and support the piece and remove to the direction that is close to the connecting pipe lateral wall, until inhaling the sound composite sheet and support tightly on the connecting pipe lateral wall, the sound effect of inhaling the sound composite sheet is inhaled in the reinforcing to a certain extent to the installation of the sound composite sheet of inhaling of suitable different thickness enlarges application range.
Optionally, the driving assembly comprises a rotating sheet and a screw rod, a rotating groove is formed in the abutting block, the rotating sheet is rotatably connected in the rotating groove, one end of the screw rod is connected with the rotating sheet, the other end of the screw rod extends out of the positioning ring and is connected with an operating handle, and the screw rod is in threaded connection with the positioning ring.
Through adopting the above technical scheme, will inhale the sound composite sheet and support tightly on the connecting pipe lateral wall in-process, operating personnel rotates operating handle to being close to connecting pipe lateral wall direction, operating handle rotates and drives the screw rod and rotates, the screw rod rotates and drives the rotor plate and rotate, and make the rotor plate to the direction removal that is close to the connecting pipe lateral wall, the rotor plate moves to being close to connecting pipe lateral wall direction and drives the tight piece and remove to the direction that is close to the connecting pipe lateral wall, make the tight piece that supports will inhale the sound composite sheet and support tightly on the connecting pipe lateral wall, make convenient operation simple.
Optionally, a first circular groove is formed in the inner side wall of the connecting pipe, and a dust screen is connected to the side wall of the first circular groove in a threaded manner.
By adopting the technical scheme, the inner side wall of the connecting pipe is connected with the dustproof net, and the dustproof net has a certain dustproof effect; and dust screen threaded connection makes the installation of dust screen dismantle convenient simple on the connecting pipe inside wall, conveniently clears up the dust screen.
Optionally, a second circular groove is formed in the connecting pipe, and the diameter of the second circular groove is smaller than that of the first circular groove; the second circular groove is matched with a connecting ring in an inserted manner, and the connecting ring is connected with a plurality of pieces of sound absorbing cotton; the connecting pipe is provided with a positioning assembly for positioning the connecting ring in the connecting pipe.
Through adopting above-mentioned technical scheme, when installing the go-between to the connecting pipe in, install the go-between to the second circular slot tank bottom from the one end that the box was kept away from to the connecting pipe, the rethread locating component is with go-between location and connecting pipe in. The suction cotton on the connecting ring has a good sound absorption effect, and noise pollution is further reduced.
Optionally, the locating component includes locating piece and threaded rod, the constant head tank has been seted up on the connecting pipe inside wall, the locating piece rotates and slides and connects in the constant head tank, threaded rod one end and positioning block connection, the other end stretch out the connecting pipe and are connected with turning handle, threaded rod and connecting pipe threaded connection.
Through adopting above-mentioned technical scheme, when needs are positioned the go-between on the connecting pipe, operating personnel rotates the twist grip to the inside direction of being close to the connecting pipe, and twist grip rotates and drives the threaded rod and rotates to the inside direction of being close to the connecting pipe, and the threaded rod rotates to the inside direction of being close to the connecting pipe and drives the locating piece and rotate to the inside direction of being close to the connecting pipe, makes the go-between be positioned between second circular slot tank bottom to the locating piece. When the connecting ring needs to be taken down from the connecting pipe, the dustproof net is firstly unscrewed from the connecting pipe, then the dustproof net rotates towards the direction far away from the inside of the connecting pipe, the positioning block rotates towards the direction far away from the inside of the connecting pipe, and then the connecting ring is taken down from the connecting pipe. The connecting ring is convenient and simple to mount and dismount.
Optionally, a mounting groove is formed in the connecting pipe, the mounting groove is connected with a mounting block through a bolt, a threaded hole is formed in the mounting block, and the threaded rod is connected to the threaded hole in a threaded mode.
Through adopting above-mentioned technical scheme, when installation threaded rod and locating piece, earlier threaded rod threaded connection on the installation piece, install locating piece and twist grip in the threaded rod both ends again, will install the piece bolted connection on the connecting pipe, make the simple to operate of locating piece, installation piece simple.
Optionally, the mounting block is provided with an insertion groove for insertion and matching with the rotating handle.
Through adopting above-mentioned technical scheme, when the go-between was located the connecting tube to the locating piece, the inserting groove grafting cooperation on twist grip and the installation piece reduces the influence when inhaling the installation of sound composite sheet, makes to inhale the sound composite sheet convenient simple more when the installation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the sound-absorbing composite board is aged and needs to be replaced, the positioning ring is screwed out of the box body, the old sound-absorbing composite board is taken down, a new sound-absorbing composite board is replaced, and then the positioning ring is in threaded connection with the outer side wall of the box body, so that the sound-absorbing composite board is convenient and simple to replace;
2. when the sound-absorbing composite plates connected to the outer side wall of the connecting pipe are different in thickness, the sound-absorbing composite plates are tightly abutted to the outer side wall of the connecting pipe through the abutting assembly, the sound-absorbing effect of the sound-absorbing composite plates is enhanced to a certain extent, the sound-absorbing composite plates are suitable for being installed, and the application range is expanded;
3. when the connecting ring is installed in the connecting pipe, the connecting ring is installed to the bottom of the second circular groove from one end, far away from the box body, of the connecting pipe, and then the connecting ring is positioned in the connecting pipe through the positioning assembly; the suction cotton on the connecting ring has a good sound absorption effect, and noise pollution is further reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of the positioning ring and the dust screen of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2, showing a schematic structural view of the positioning assembly, the acoustic composite panel, the positioning ring, and the drive assembly;
FIG. 4 is an exploded view of the dust screen, connecting tube, connecting ring and retaining ring of FIG. 2;
fig. 5 is an enlarged view of portion B of fig. 3, showing the rotation slot, the positioning assembly and the drive assembly.
Description of reference numerals: 1. a box body; 11. a through hole; 2. a connecting pipe; 21. a dust screen; 211. a first circular groove; 212. a second circular groove; 22. mounting grooves; 23. mounting blocks; 231. inserting grooves; 232. a threaded hole; 24. positioning a groove; 25. a connecting ring; 251. sound-absorbing cotton; 3. a positioning assembly; 31. positioning blocks; 32. a threaded rod; 33. rotating the handle; 4. a sound-absorbing composite board; 5. a positioning ring; 51. a limiting groove; 52. a propping block; 521. a rotating groove; 6. a drive assembly; 61. a rotating sheet; 62. a screw; 63. a handle is operated.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses ventilation equipment of low noise operation. Referring to fig. 1, the centrifugal fan includes a case 1 and a centrifugal fan (not shown in the drawing) fixedly attached to the bottom of the case 1.
Referring to fig. 2 and 3, a through hole 11 is formed in the side wall of the box body 1, and a connecting pipe 2 is fixedly connected to the side wall of the through hole 11.
Referring to fig. 3 and 4, one end of the connection pipe 2 away from the box body 1 is connected with a dust screen 21, one end of the connection pipe 2 away from the box body 1 is provided with a first circular groove 211, a first thread section is arranged on the inner side wall of the first circular groove 211, a second thread section is arranged on the outer side wall of the dust screen 21, and the first thread section is in thread fit with the second thread section.
The connecting pipe 2 is provided with a second circular groove 212 communicated with the first circular groove 211, and the diameter of the second circular groove 212 is smaller than that of the first circular groove 211. The second circular groove 212 is inserted and matched with the connecting ring 25, and the connecting ring 25 is contacted with the bottom of the second circular groove 212. The connecting ring 25 is fixedly connected with a plurality of sound absorbing cotton 251.
Referring to fig. 3 and 5, a mounting groove 22 is formed in the side wall of the connection pipe 2, a mounting block 23 is bolted to the mounting groove 22, a threaded hole 232 is formed in the mounting block 23, and the threaded hole 232 is radially arranged along the connection pipe 2.
Be provided with on connecting pipe 2 and be used for fixing a position the locating component 3 of go-between 25 in connecting pipe 2, locating component 3 includes locating piece 31 and threaded rod 32, threaded rod 32 and the screw hole 232 threaded connection on the installation piece 23, has seted up constant head tank 24 on the installation piece 23 inside wall, and locating piece 31 rotates and slides and connects in constant head tank 24. One end of the threaded rod 32 is fixedly connected with the positioning block 31, and the other end of the threaded rod extends out of the connecting pipe 2 and then is fixedly connected with a rotating handle 33. The outer side wall of the mounting block 23 is provided with an insertion groove 231 for insertion and matching with the rotating handle 33.
Have cup jointed on 2 lateral walls of connecting pipe and have inhaled sound composite sheet 4, be connected with the setting element on 2 lateral walls of connecting pipe, the setting element includes holding ring 5, 5 inside walls of holding ring and the contact of 2 lateral walls of connecting pipe. The bottom of the positioning ring 5 is in threaded connection with the outer side wall of the box body 1.
Spacing groove 51 has been seted up on the 5 inside walls of holding ring, and spacing groove 51 thickness more than or equal to inhales 4 thicknesses of sound composite sheet, inhales sound composite sheet 4 and is located the spacing groove 51.
The positioning ring 5 is provided with a fastening component for fastening the sound-absorbing composite board 4 to the outer side wall of the connecting pipe 2, and the fastening component comprises a fastening block 52 and a driving component 6 for driving the fastening block 52 to move towards the direction close to the outer side wall of the connecting pipe 2. The abutting block 52 is slidably connected in the limiting groove 51 along the radial direction of the connecting pipe 2.
The driving assembly 6 comprises a rotating sheet 61 and a screw 62, a rotating groove 521 is formed in the abutting block 52, the rotating sheet 61 is cylindrical in shape, and the rotating sheet 61 is rotatably connected in the rotating groove 521. The screw 62 is screwed on the positioning ring 5, one end of the screw 62 extends into the limiting groove 51 to be coaxially and fixedly connected with the rotating sheet 61, and the other end of the screw 62 extends out of the positioning ring 5 to be fixedly connected with an operating handle 63.
The implementation principle of the ventilation equipment with low noise operation in the embodiment of the application is as follows:
when needs are changed inhaling sound composite sheet 4, operating personnel outwards rotates operating handle 63, operating handle 63 rotates and drives rotor 61 and removes to the direction of keeping away from compound sound absorption cotton 251, drive and support tight piece 52 and remove to the direction of keeping away from compound sound absorption cotton 251, back out holding ring 5 to box 1 is outer, take off old sound absorption composite sheet 4, change new sound absorption composite sheet 4, again with holding ring 5 and 1 lateral wall threaded connection of box, rotate operating handle 63 to the direction that is close to connecting pipe 2 after that, drive rotor 61 and remove to the direction that is close to compound sound absorption cotton 251, it attracts the cotton tightly to support on connecting pipe 2 lateral wall to drive to support tight piece 52 with compound attraction.
When the connection ring 25 needs to be replaced, the dust screen 21 is firstly unscrewed from the connection pipe 2, and then the dust screen is rotated in the direction away from the inside of the connection pipe 2, so that the positioning block 31 is rotated in the direction away from the inside of the connection pipe 2, and then the connection ring 25 is taken down from the connection pipe 2.
When the connecting ring 25 needs to be positioned on the connecting pipe 2, an operator firstly installs the connecting ring 25 to the bottom of the second circular groove 212 from the end of the connecting pipe 2 far away from the box body 1, the operator rotates the rotating handle 33 towards the direction close to the inside of the connecting pipe 2, the rotating handle 33 rotates to drive the threaded rod 32 to rotate towards the direction close to the inside of the connecting pipe 2, the threaded rod 32 rotates towards the direction close to the inside of the connecting pipe 2 to drive the positioning block 31 to rotate towards the direction close to the inside of the connecting pipe 2, and the connecting ring 25 is positioned between the bottom of the second circular groove 212 and the positioning block 31.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a ventilation equipment of low noise operation, includes box (1) and installs the centrifugal fan in box (1), has seted up through-hole (11), its characterized in that on box (1): be connected with connecting pipe (2) on through-hole (11), be connected with on connecting pipe (2) the lateral wall and inhale sound composite sheet (4), be connected with on connecting pipe (2) the lateral wall and be used for will inhaling sound composite sheet (4) and be located the setting element on connecting pipe (2) lateral wall, the setting element includes holding ring (5), set up on holding ring (5) and attract composite sheet grafting complex spacing groove (51), holding ring (5) and box (1) lateral wall threaded connection.
2. A low noise operating ventilation apparatus according to claim 1, wherein: be provided with on holding ring (5) and will inhale sound composite sheet (4) and support tight subassembly of supporting on connecting pipe (2) lateral wall, support tight subassembly including sliding to connect in spacing groove (51) support tight piece (52) and drive support tight piece (52) to being close to drive assembly (6) that connecting pipe (2) lateral wall direction removed.
3. A low noise operating ventilation apparatus according to claim 2, wherein: drive assembly (6) include rotor (61) and screw rod (62), it rotates groove (521) to have seted up on piece (52) to support, rotor (61) rotate to be connected in rotating groove (521), screw rod (62) one end is connected with rotor (61), and the other end stretches out holding ring (5) and is connected with operating handle (63), just screw rod (62) threaded connection is on holding ring (5).
4. A low noise operating ventilation apparatus according to claim 1, wherein: first circular slot (211) have been seted up on connecting pipe (2) inside wall, threaded connection has dust screen (21) on first circular slot (211) the lateral wall.
5. A low noise operating ventilation apparatus according to claim 4, wherein: a second circular groove (212) is formed in the connecting pipe (2), and the diameter of the second circular groove (212) is smaller than that of the first circular groove (211); a connecting ring (25) is inserted and matched on the second circular groove (212), and a plurality of sound-absorbing cotton (251) are connected on the connecting ring (25); the connecting pipe (2) is provided with a positioning component (3) for positioning the connecting ring (25) in the connecting pipe (2).
6. A low noise operating ventilation apparatus according to claim 5, wherein: locating component (3) is including locating piece (31) and threaded rod (32), constant head tank (24) have been seted up on connecting pipe (2) inside wall, locating piece (31) rotate and slide and connect in constant head tank (24), threaded rod (32) one end is connected with locating piece (31), the other end stretches out connecting pipe (2) and is connected with turning handle (33), threaded rod (32) and connecting pipe (2) threaded connection.
7. A low noise operating ventilation device according to claim 6, wherein: the connecting pipe is characterized in that a mounting groove (22) is formed in the connecting pipe (2), a mounting block (23) is connected to the mounting groove (22) through a bolt, a threaded hole (232) is formed in the mounting block (23), and the threaded rod (32) is in threaded connection with the threaded hole (232).
8. A low noise operating ventilation apparatus according to claim 7, wherein: the mounting block (23) is provided with an insertion groove (231) which is used for being in insertion fit with the rotating handle (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587409.1U CN213421335U (en) | 2020-11-10 | 2020-11-10 | Ventilation equipment of low noise operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587409.1U CN213421335U (en) | 2020-11-10 | 2020-11-10 | Ventilation equipment of low noise operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213421335U true CN213421335U (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022587409.1U Active CN213421335U (en) | 2020-11-10 | 2020-11-10 | Ventilation equipment of low noise operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213421335U (en) |
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2020
- 2020-11-10 CN CN202022587409.1U patent/CN213421335U/en active Active
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