CN108286769B - Indoor sound insulation ventilation unit - Google Patents
Indoor sound insulation ventilation unit Download PDFInfo
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- CN108286769B CN108286769B CN201810149495.2A CN201810149495A CN108286769B CN 108286769 B CN108286769 B CN 108286769B CN 201810149495 A CN201810149495 A CN 201810149495A CN 108286769 B CN108286769 B CN 108286769B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- General Engineering & Computer Science (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
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Abstract
The invention discloses an indoor sound insulation ventilation device, which comprises a ventilation box body, wherein a ventilation chamber is formed in the ventilation box body, one side of the ventilation box body is provided with a ventilation opening communicated with the ventilation chamber and used for indoor side ventilation, the other side of the ventilation box body is provided with a ventilation opening communicated with the ventilation chamber and used for outdoor side ventilation, a rotating shaft is arranged in the ventilation chamber and used for being in transmission connection with a power mechanism, blades used for ventilation are arranged on the rotating shaft to form an impeller, and the ventilation opening and the impeller are arranged in a rotating direction correspondingly. The invention has the advantages of simple structure, good sound insulation and noise reduction effects, improvement of installation independence and application range, reduction of energy loss and the like.
Description
Technical Field
The invention relates to the technical field of building ventilation; in particular to an indoor sound insulation and ventilation device.
Background
For some districts and office buildings close to roads, expressways and construction sites, the sleeping quality and the working efficiency of people are seriously influenced due to the extremely high noise pollution. In order to reduce the influence of noise, people usually close doors and windows very tightly, and after a period of time, the indoor air quality is very poor, and people feel the problems of chest distress, dizziness, dysphoria and the like.
In order to solve the above problems, it is considered to provide a ventilation device in a building, but the conventional ventilation device still has the following defects: 1 ventilation unit can direct intercommunication indoor and outdoor when using, leads to outdoor noise to pass through the wind current channel and spreads into indoor, so gives sound insulation and noise reduction effect relatively poor. 2 many ventilators have motors that increase the cost and power usage limitations, and the motors themselves increase the noise in the room when operating; resulting in poor noise reduction.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a simple structure, the indoor ventilation unit that gives sound insulation that noise reduction effect is good to further improve installation independence and range of application, reduce the energy loss.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an indoor sound insulation ventilation unit, includes the ventilation box, the ventilation box is internal to be formed with the ventilation cavity, ventilation box one side is provided with and ventilates the cavity and communicate with each other and be used for the ventilation of indoor side's vent, the opposite side is provided with and ventilates the cavity and communicate with each other and be used for the ventilation of outdoor side's vent, be provided with the pivot in the ventilation cavity, the pivot is used for being connected with power unit transmission, install in the pivot and be used for the blade formation impeller that ventilates, vent and impeller rotation direction correspond the setting, a serial communication port, be provided with the wind gap switching device that can control the vent switching on and off on the vent of indoor side and the vent of outdoor side respectively, still include on-off control mechanism, on-off control mechanism is used for controlling the wind.
Thus, when the ventilating device is installed, the indoor side ventilation opening is positioned indoors, and the outdoor side ventilation opening is positioned outdoors. When the fan is used, the rotating shaft is connected and installed on the power mechanism, the rotating shaft is driven to rotate by the power mechanism, and ventilation is performed by wind flow generated by the blades. The improved place is that the switch control mechanism can be used for controlling the air opening switch devices of the indoor side ventilation opening and the outdoor side ventilation opening to be opened and closed in turn, so that in the ventilation process, the air opening switch devices of the indoor side ventilation opening and the outdoor side ventilation opening are opened and closed in turn, and only the air opening switch device on one side is in an opening state all the time. Therefore, during ventilation, only one side of the indoor side or the outdoor side of the ventilation box body is always subjected to air exchange with the ventilation cavity, so that the indoor space and the outdoor space are not directly communicated, the ventilation and air exchange are kept, meanwhile, the path that outdoor noise is transmitted to the indoor space through the air channel is cut off, and the outdoor noise can be shielded to the maximum extent. Greatly improving the sound insulation and noise reduction effects.
As optimization, the ventilation openings at the indoor side are at least two arranged at the two ends of the same side of the impeller respectively, and the ventilation openings at the outdoor side are at least two arranged at the two ends of the same side of the impeller respectively.
Therefore, when the indoor side ventilation opening is opened, the impeller rotates to drive one end of the indoor side ventilation opening at the two ends on the same side of the impeller to intake air and the other end to exhaust air; and meanwhile, when the outdoor ventilation opening is opened, the impeller rotates to drive one end of the outdoor ventilation opening at the two ends of the same side of the impeller to intake air and the other end to exhaust air. In this way, the ventilation chamber and the indoor and indoor air exchange efficiency can be greatly improved.
As an optimization, the air port switch device comprises a fixed switch board and a movable switch board which are arranged along the direction vertical to the indoor direction and the outdoor direction, two air vents at two ends of the same side of the ventilation box body are respectively provided with one fixed switch board, the fixed switch boards are opposite to each other, the outer ends of the fixed switch boards are fixed on the inner wall of the ventilation box body, one side of the outer side of the space between the two fixed switch boards at two ends of the same side of the ventilation box body is also provided with one movable switch board, the movable switch board is provided with a part overlapped with the fixed switch board, and a partition can be formed between the corresponding air vent and the ventilation cavity after the two are overlapped, and the movable switch board is provided with a closing member which can enable the overlapped parts of the movable switch board and the fixed switch board to; the switch control mechanism comprises an arc-shaped bulge which is positioned in the middle of the inner side of the fixed switch board and protrudes outwards towards the impeller, and a cam arranged on the impeller, wherein the outer side of the arc-shaped bulge is positioned in the rotating path circle range of the cam, and the maximum distance of the arc-shaped bulge, which can stretch into the rotating path circle of the cam, is smaller than the maximum distance of the closing action range generated by the closing component.
Like this, when the impeller rotates, rely on the blade to produce rotatory air current, on the cam does not pass through arc protruding position, the movable switch board and the fixed switch board of vent inner rely on the closure member effect to be the off-state, on the cam passes through arc protruding position, through cam and the bellied contact interact of arc, outwards back-open the movable switch board, two vents that the movable switch board corresponds the homonymy this moment open the ventilation simultaneously, because two vents are located the both ends of impeller homonymy respectively, so the effect of rotatory air current next vent air inlet, another vent air-out, accomplish ventilation box and this side outside ventilation exchange. The movable and fixed switch plates are then closed again by the closing member after the cam has rotated out of the arcuate raised area. When the cam rotates to the arc-shaped protruding position of the other side, the two ventilation openings on the side are driven to be opened by the same principle, ventilation exchange between the ventilation box body and the outside of the side is achieved, and then spaced indoor and outdoor ventilation exchange is finally achieved. The air port switching device and the switch control mechanism adopting the structure have the advantages of simpler structure and reliable and stable control.
Preferably, the closing member is a ferromagnetic member which is arranged on the opposite side surfaces of the mutually overlapped part of the movable switch plate and the fixed switch plate and can be mutually attracted. This has the advantages of simple structure and reliable closing. Of course, the closing member may also be a return spring arranged between the outside of the movable shutter and the ventilation box body.
Furthermore, a limit baffle is fixedly arranged on the inner wall of the ventilation cavity opposite to the direction in the middle of the outer side of the movable switch board, and when the distance from the inner end of the limit baffle to the ferromagnetic component is in a suction state, the distance from the outer side surface of the movable switch board is smaller than the maximum distance of a suction action range generated by the ferromagnetic component and is larger than or equal to the maximum distance that the arc-shaped bulge can extend into a rotation path circle of the cam.
Like this, can avoid two vent air currents of homonymy to mix and offset, make it form an air-out of air inlet better, improve and the inside air exchange effect of ventilation box.
Furthermore, a spring is arranged between the movable switch board and the limiting baffle plate or between the inner side walls of the ventilation box body where the limiting baffle plate is located.
Therefore, the spring can play the roles of buffering and resetting, thereby better improving the operation stability and reducing the noise.
As another optimization, the air port switching device comprises a fixed channel plate and a movable channel plate which are arranged along the indoor and outdoor directions and are parallel to each other, the fixed channel plate is arranged on one side of the inner end of each ventilation opening close to the middle direction, the movable channel plate is arranged on the other side, and a closing member which can enable the movable channel plate to be attached to the fixed channel plate and block the corresponding ventilation opening under the action of no external force is arranged on the movable channel plate; the switch control mechanism comprises a push rod which is perpendicular to the fixed channel plate and the movable channel plate, one end of the push rod can slidably penetrate through the fixed channel plate and is abutted against the movable channel plate, the other end of the push rod is provided with a wedge-shaped block, the wedge-shaped block is provided with an inclined surface facing the direction of the impeller, the two wedge-shaped blocks at the two ends of the same side of the ventilation box body are symmetrically arranged, a thrust block is arranged between the two wedge-shaped blocks, the thrust block is provided with an arc-shaped bulge facing the direction of the impeller, a thrust block reset spring is arranged between the thrust block and the inner cavity of the ventilation box body and deviates from the direction of the impeller, and the left side and the right; the switch control mechanism further comprises a cam arranged on the impeller, the outer side of the arc-shaped bulge is located within the rotating path circle range of the cam, and the maximum distance of the cam, which acts with the arc-shaped bulge and drives the push rod to move when rotating, is smaller than the maximum distance of the closing action range generated by the closing component.
Thus, when the impeller rotates, the rotating wind flow is generated by the blades, and when the cam does not pass through the arc-shaped bulge position, the movable channel plate and the fixed channel plate at the inner end of the ventilation opening are in a closed state under the action of the closing component. When the cam passes through the arc-shaped protruding position, the thrust block is pushed outwards through the contact interaction of the cam and the arc-shaped protrusion, the two ends of the push rod are driven to push outwards through the matching of the inclined plane and the inclined plane, the movable channel plate corresponding to the two ventilation openings is pushed outwards away from the fixed channel plate, so that a ventilation channel is respectively formed between the two ventilation openings at the two ends of the same side of the ventilation box body and the ventilation cavity, the ventilation channel is just positioned in the tangential direction of the air flow generated by the rotation of the impeller, the efficient air inlet of one ventilation opening is realized under the action of the rotation air flow, the efficient air outlet of the other ventilation opening is realized, and the efficient ventilation exchange of the ventilation box body and the outer part of the side. Then, after the cam is rotated out of the arc-shaped convex area, the movable channel plate and the fixed channel plate are closed again under the action of the closing member. When the cam rotates to the arc-shaped protruding position of the other side, the two ventilation openings on the side are driven to be opened by the same principle, ventilation exchange between the ventilation box body and the outside of the side is achieved, and then spaced indoor and outdoor ventilation exchange is finally achieved. The air port switching device and the switch control mechanism adopting the structure have the advantages of more efficient ventilation and reliable and stable control.
Preferably, the closing component is a movable channel plate return spring arranged between the side surface of the movable channel plate, which is far away from the fixed channel plate, and the inner wall of the corresponding ventilation box body.
Thus, the device has the advantages of simple structure and reliable closing and resetting. Of course, in practice, the closing member may also be obtained by disposing a ferromagnetic attraction member between the movable channel plate and the fixed channel plate.
Preferably, a flexible folding baffle is further arranged between the end part of one side, away from the fixed channel plate, of the movable channel plate and close to the impeller direction and the inner wall of the corresponding ventilation box body.
In this way, the wind flow can be better shielded, and the ventilation opening is opened through the movable channel plate when needed.
As optimization, the ventilation box body is a rectangular body, and the wall of the inner cavity is provided with a silencing material. This makes it possible to better facilitate the installation and to improve the silencing effect.
Preferably, the ventilation opening at one side of the ventilation box body is provided with a primary filter, the primary filter constitutes the indoor side, and the ventilation opening at the other side of the ventilation box body is provided with a rainproof louver, and the ventilation opening constitutes the outdoor side.
In this way, better filtration and protection against rain is possible.
Preferably, the power mechanism comprises a wind wheel, and one end of the rotating shaft can rotatably extend out of the ventilation box body and is connected with the wind wheel.
Therefore, when the ventilation device is installed, the wind wheel can extend out and be installed outside the wall, outdoor wind power is received as power, the automatic ventilation effect is achieved, the dependence on a power supply is eliminated, the installation independence and the application range are improved, and energy loss is reduced.
The sound insulation and ventilation device for the unpowered window has the advantages that the device can ventilate, has no power requirement and has good sound insulation effect; the device has low cost, simple structure and convenient manufacture and maintenance; the building material can automatically run all day long, and pollutants released by the building materials can be removed when no person exists in the room.
In conclusion, the sound insulation and noise reduction device has the advantages of being simple in structure, good in sound insulation and noise reduction effects, capable of improving installation independence and application range, capable of reducing energy loss and the like.
Drawings
Fig. 1 is a schematic structural view of a ventilation box portion in a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a single power mechanism portion according to a first embodiment of the present invention.
Fig. 3 is a schematic structural view of a ventilation box portion in a second embodiment of the present invention.
The arrows in the figure indicate the direction of wind flow.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: referring to fig. 1-2, an indoor sound insulation and ventilation device comprises a ventilation box body 1, a ventilation chamber is formed inside the ventilation box body 1, one side of the ventilation box body 1 is provided with a ventilation opening communicated with the ventilation chamber and used for indoor side ventilation, the other side is provided with a ventilation opening communicated with the ventilation chamber and used for outdoor side ventilation, a rotating shaft 2 is arranged in the ventilation chamber, the rotating shaft 2 is used for being in transmission connection with a power mechanism, blades used for ventilation are arranged on the rotating shaft 2 to form an impeller 3, the ventilation opening and the impeller 3 are arranged in a corresponding way, wherein, the ventilation opening and closing device which can control the opening and closing of the ventilation opening is respectively arranged on the ventilation opening at the indoor side and the ventilation opening at the outdoor side, and the air conditioner also comprises an opening and closing control mechanism, the switch control mechanism is used for controlling the air opening switch devices of the indoor side air vent and the outdoor side air vent to be opened and closed in turn when the rotating shaft 2 rotates.
Thus, when the ventilating device is installed, the indoor side ventilation opening is positioned indoors, and the outdoor side ventilation opening is positioned outdoors. When the fan is used, the rotating shaft is connected and installed on the power mechanism, the rotating shaft is driven to rotate by the power mechanism, and ventilation is performed by wind flow generated by the blades. The improved place is that the switch control mechanism can be used for controlling the air opening switch devices of the indoor side ventilation opening and the outdoor side ventilation opening to be opened and closed in turn, so that in the ventilation process, the air opening switch devices of the indoor side ventilation opening and the outdoor side ventilation opening are opened and closed in turn, and only the air opening switch device on one side is in an opening state all the time. Therefore, during ventilation, only one side of the indoor side or the outdoor side of the ventilation box body is always subjected to air exchange with the ventilation cavity, so that the indoor space and the outdoor space are not directly communicated, the ventilation and air exchange are kept, meanwhile, the path that outdoor noise is transmitted to the indoor space through the air channel is cut off, and the outdoor noise can be shielded to the maximum extent. Greatly improving the sound insulation and noise reduction effects.
Wherein, the vent of indoor side is for setting up respectively in at least two at 3 homonymy both ends of impeller, the vent of outdoor side is for setting up respectively in at least two at 3 homonymy both ends of impeller.
Therefore, when the indoor side ventilation opening is opened, the impeller rotates to drive one end of the indoor side ventilation opening at the two ends on the same side of the impeller to intake air and the other end to exhaust air; and meanwhile, when the outdoor ventilation opening is opened, the impeller rotates to drive one end of the outdoor ventilation opening at the two ends of the same side of the impeller to intake air and the other end to exhaust air. In this way, the ventilation chamber and the indoor and indoor air exchange efficiency can be greatly improved.
The air port switching device comprises a fixed switch plate 4 and a movable switch plate 5 which are arranged along the direction vertical to the indoor direction and the outdoor direction, two air vents at two ends of the same side of the ventilation box body are respectively provided with one fixed switch plate 4, the fixed switch plates 4 are oppositely arranged, the outer ends opposite to each other are fixed on the inner wall of the ventilation box body 1, one movable switch plate 5 is also arranged at one outward side between the two fixed switch plates 4 at the same side of the ventilation box body 1, the movable switch plate 5 is provided with a part overlapped with the fixed switch plates 4, and a partition can be formed between the corresponding air vents and the ventilation cavity after the two are overlapped, and the movable switch plate 5 is provided with a closing member which can enable the overlapped parts of the movable switch plate 5 and the fixed switch plates 4 to be mutually attached under the effect of no external force; the switch control mechanism comprises an arc-shaped bulge 6 which is positioned in the middle of the inner side of the fixed switch board and protrudes outwards towards the impeller, and further comprises a cam 7 arranged on the impeller, the outer side of the arc-shaped bulge 6 is positioned in the rotating path circle range of the cam 7, and the maximum distance of the arc-shaped bulge 6 which can stretch into the rotating path circle of the cam 7 is smaller than the maximum distance of the closing action range generated by the closing component.
Like this, when the impeller rotates, rely on the blade to produce rotatory air current, on the cam does not pass through arc protruding position, the movable switch board and the fixed switch board of vent inner rely on the closure member effect to be the off-state, on the cam passes through arc protruding position, through cam and the bellied contact interact of arc, outwards back-open the movable switch board, two vents that the movable switch board corresponds the homonymy this moment open the ventilation simultaneously, because two vents are located the both ends of impeller homonymy respectively, so the effect of rotatory air current next vent air inlet, another vent air-out, accomplish ventilation box and this side outside ventilation exchange. The movable and fixed switch plates are then closed again by the closing member after the cam has rotated out of the arcuate raised area. When the cam rotates to the arc-shaped protruding position of the other side, the two ventilation openings on the side are driven to be opened by the same principle, ventilation exchange between the ventilation box body and the outside of the side is achieved, and then spaced indoor and outdoor ventilation exchange is finally achieved. The air port switching device and the switch control mechanism adopting the structure have the advantages of simpler structure and reliable and stable control.
The closing component is a ferromagnetic component 8 which is arranged on the opposite side surfaces of the mutually overlapped part of the movable switch board and the fixed switch board and can be mutually attracted. This has the advantages of simple structure and reliable closing. Of course, the closing member may also be a return spring arranged between the outside of the movable shutter and the ventilation box body.
The middle part of the outer side of the movable switch board is fixedly provided with a limit baffle board 9 on the inner wall of the ventilation cavity facing to the direction, and the distance between the outer side surface of the movable switch board and the inner end of the limit baffle board 9 is less than the maximum distance of the attraction action range generated by the ferromagnetic component when the distance is away from the attraction state of the ferromagnetic component and is more than or equal to the maximum distance of the arc-shaped bulge which can stretch into the rotation path circle of the cam.
Like this, can avoid two vent air currents of homonymy to mix and offset, make it form an air-out of air inlet better, improve and the inside air exchange effect of ventilation box.
Wherein, a spring (not shown in the figure) is arranged between the movable switch board 5 and the limit baffle or the inner side wall of the ventilation box body where the limit baffle is arranged.
Therefore, the spring can play the roles of buffering and resetting, thereby better improving the operation stability and reducing the noise.
Wherein, the ventilation box body 1 is a rectangular body, and the inner cavity wall is provided with a silencing material. This makes it possible to better facilitate the installation and to improve the silencing effect.
Wherein, the vent department of ventilation box 1 one side is provided with primary filter 10 and this side constitutes indoor side, and the vent department of ventilation box opposite side is provided with rain-proof tripe 11 and this side constitutes outdoor side.
In this way, better filtration and protection against rain is possible.
The power mechanism comprises a wind wheel 12, and one end of the rotating shaft 2 can rotatably extend out of the ventilation box body and is connected with the wind wheel 12.
Therefore, when the ventilation device is installed, the wind wheel can extend out and be installed outside the wall, outdoor wind power is received as power, the automatic ventilation effect is achieved, the dependence on a power supply is eliminated, the installation independence and the application range are improved, and energy loss is reduced.
Example 2: see fig. 3.
The difference between this embodiment and the above-mentioned embodiment is that the air opening switching device and the switching control mechanism are different, and the other structures are the same as those of the above-mentioned embodiment, specifically, in this embodiment, the air opening switching device includes a fixed channel plate 14 and a movable channel plate 15 which are arranged along the indoor and outdoor directions and are parallel to each other, the fixed channel plate 14 is arranged at one side of the inner end of each ventilation opening near the middle direction, the movable channel plate 15 is arranged at the other side, and the movable channel plate 15 is provided with a closing member which can make the movable channel plate and the fixed channel plate adhere to each other and block the corresponding ventilation opening under the action of no; the switch control mechanism comprises a push rod 16 which is perpendicular to the fixed channel plate and the movable channel plate, one end of the push rod 16 slidably penetrates through the fixed channel plate and abuts against the movable channel plate, the other end of the push rod is provided with a wedge-shaped block 17, the wedge-shaped block 17 is provided with an inclined plane facing the direction of the impeller, the two wedge-shaped blocks at the two ends of the same side of the ventilation box body are symmetrically arranged, a thrust block 18 is arranged between the two wedge-shaped blocks, the thrust block 18 is provided with an arc-shaped bulge facing the direction of the impeller, a thrust block reset spring 19 is arranged between the thrust block and the inner cavity of the ventilation box body and deviates from the direction of the impeller, and the left side and the right side of; the switch control mechanism further comprises a cam 20 arranged on the impeller, the outer side of the arc-shaped bulge is located in the range of a rotating path circle of the cam 20, and the maximum distance of the cam 20, which acts with the arc-shaped bulge and drives the push rod to move when rotating, is smaller than the maximum distance of a closing action range generated by the closing component.
Thus, when the impeller rotates, the rotating wind flow is generated by the blades, and when the cam does not pass through the arc-shaped bulge position, the movable channel plate and the fixed channel plate at the inner end of the ventilation opening are in a closed state under the action of the closing component. When the cam passes through the arc-shaped protruding position, the thrust block is pushed outwards through the contact interaction of the cam and the arc-shaped protrusion, the two ends of the push rod are driven to push outwards through the matching of the inclined plane and the inclined plane, the movable channel plate corresponding to the two ventilation openings is pushed outwards away from the fixed channel plate, so that a ventilation channel is respectively formed between the two ventilation openings at the two ends of the same side of the ventilation box body and the ventilation cavity, the ventilation channel is just positioned in the tangential direction of the air flow generated by the rotation of the impeller, the efficient air inlet of one ventilation opening is realized under the action of the rotation air flow, the efficient air outlet of the other ventilation opening is realized, and the efficient ventilation exchange of the ventilation box body and the outer part of the side. Then, after the cam is rotated out of the arc-shaped convex area, the movable channel plate and the fixed channel plate are closed again under the action of the closing member. When the cam rotates to the arc-shaped protruding position of the other side, the two ventilation openings on the side are driven to be opened by the same principle, ventilation exchange between the ventilation box body and the outside of the side is achieved, and then spaced indoor and outdoor ventilation exchange is finally achieved. The air port switching device and the switch control mechanism adopting the structure have the advantages of more efficient ventilation and reliable and stable control.
The closing component is a movable channel plate return spring 21 arranged between the side surface of the movable channel plate, which is far away from the fixed channel plate, and the inner wall of the corresponding ventilation box body.
Thus, the device has the advantages of simple structure and reliable closing and resetting. Of course, in practice, the closing member may also be obtained by disposing a ferromagnetic attraction member between the movable channel plate and the fixed channel plate.
And a flexible folding baffle 22 is also arranged between the end part of one side of the movable channel plate, which is far away from the fixed channel plate and is close to the impeller direction, and the inner wall of the corresponding ventilation box body.
In this way, the wind flow can be better shielded, and the ventilation opening is opened through the movable channel plate when needed.
Claims (8)
1. An indoor sound insulation ventilation device comprises a ventilation box body, wherein a ventilation cavity is formed in the ventilation box body, one side of the ventilation box body is provided with a ventilation opening communicated with the ventilation cavity and used for indoor side ventilation, the other side of the ventilation box body is provided with a ventilation opening communicated with the ventilation cavity and used for outdoor side ventilation, a rotating shaft is arranged in the ventilation cavity and used for being in transmission connection with a power mechanism, blades used for ventilation are mounted on the rotating shaft to form an impeller, and the ventilation opening and the impeller are correspondingly arranged in rotating directions;
the ventilation opening at one side of the ventilation box body is provided with a primary filter, the side forms an indoor side, the ventilation opening at the other side of the ventilation box body is provided with a rainproof shutter, and the side forms an outdoor side;
the indoor side ventilation openings are at least two ventilation openings which are respectively arranged at two ends of the same side of the impeller, and the outdoor side ventilation openings are at least two ventilation openings which are respectively arranged at two ends of the same side of the impeller;
the air port switching device comprises a fixed switching plate and a movable switching plate which are arranged along the direction vertical to the indoor direction and the outdoor direction, two air vents at two ends of the same side of the ventilation box body are respectively provided with one fixed switching plate, the fixed switching plates are opposite to each other, the outer ends of the fixed switching plates are fixed on the inner wall of the ventilation box body, one movable switching plate is arranged at one outward side between the two fixed switching plates at two ends of the same side of the ventilation box body, the movable switching plate is provided with a part overlapped with the fixed switching plate, and a partition can be formed between the corresponding air vent and the ventilation cavity after the movable switching plate and the fixed switching plate are overlapped, and the movable switching plate is provided with a closing member which can enable the overlapped parts of the movable switching plate and the fixed switching plate to be; the switch control mechanism comprises an arc-shaped bulge which is positioned in the middle of the inner side of the fixed switch board and protrudes outwards towards the impeller, and a cam arranged on the impeller, wherein the outer side of the arc-shaped bulge is positioned in the rotating path circle range of the cam, and the maximum distance of the arc-shaped bulge, which can stretch into the rotating path circle of the cam, is smaller than the maximum distance of the closing action range generated by the closing component.
2. The indoor sound insulation ventilating device as claimed in claim 1, wherein the closing member is a ferromagnetic member provided on each of opposite sides of the overlapping portion of the movable switching plate and the fixed switching plate to be capable of being engaged with each other.
3. The indoor sound insulation and ventilation device as claimed in claim 2, wherein a limit partition is further fixedly disposed on the inner wall of the ventilation chamber facing the direction of the middle portion of the outer side of the movable switch plate, and when the inner end of the limit partition is away from the ferromagnetic member in the attraction state, the distance of the outer side surface of the movable switch plate is smaller than the maximum distance of the attraction range generated by the ferromagnetic member and is greater than or equal to the maximum distance of the arc-shaped protrusion which can extend into the rotation path circle of the cam.
4. An indoor sound insulation and ventilation device as claimed in claim 3, wherein a spring is further arranged between the movable switch board and the limit baffle or the inner side wall of the ventilation box body where the limit baffle is arranged.
5. An indoor sound insulation ventilation device comprises a ventilation box body, wherein a ventilation cavity is formed in the ventilation box body, one side of the ventilation box body is provided with a ventilation opening communicated with the ventilation cavity and used for indoor side ventilation, the other side of the ventilation box body is provided with a ventilation opening communicated with the ventilation cavity and used for outdoor side ventilation, a rotating shaft is arranged in the ventilation cavity and used for being in transmission connection with a power mechanism, blades used for ventilation are mounted on the rotating shaft to form an impeller, and the ventilation opening and the impeller are correspondingly arranged in rotating directions;
the ventilation opening at one side of the ventilation box body is provided with a primary filter, the side forms an indoor side, the ventilation opening at the other side of the ventilation box body is provided with a rainproof shutter, and the side forms an outdoor side;
the indoor side ventilation openings are at least two ventilation openings which are respectively arranged at two ends of the same side of the impeller, and the outdoor side ventilation openings are at least two ventilation openings which are respectively arranged at two ends of the same side of the impeller;
the air port switching device comprises a fixed channel plate and a movable channel plate which are arranged along the indoor and outdoor directions and are parallel to each other, the fixed channel plate is arranged at one side of the inner end of each ventilation port close to the middle direction, the movable channel plate is arranged at the other side, and a closing member which can enable the movable channel plate and the fixed channel plate to be attached to each other and block the corresponding ventilation port under the action of no external force is arranged on the movable channel plate; the switch control mechanism comprises a push rod which is perpendicular to the fixed channel plate and the movable channel plate, one end of the push rod can slidably penetrate through the fixed channel plate and is abutted against the movable channel plate, the other end of the push rod is provided with a wedge-shaped block, the wedge-shaped block is provided with an inclined surface facing the direction of the impeller, the two wedge-shaped blocks at the two ends of the same side of the ventilation box body are symmetrically arranged, a thrust block is arranged between the two wedge-shaped blocks, the thrust block is provided with an arc-shaped bulge facing the direction of the impeller, a thrust block reset spring is arranged between the thrust block and the inner cavity of the ventilation box body and deviates from the direction of the impeller, and the left side and the right; the switch control mechanism further comprises a cam arranged on the impeller, the outer side of the arc-shaped bulge is located within the rotating path circle range of the cam, and the maximum distance of the cam, which acts with the arc-shaped bulge and drives the push rod to move when rotating, is smaller than the maximum distance of the closing action range generated by the closing component.
6. The indoor sound insulation ventilation device as claimed in claim 5, wherein the closing member is a movable channel plate return spring provided between a side surface of the movable channel plate facing away from the fixed channel plate and an inner wall of the corresponding ventilation box body.
7. The indoor sound insulation and ventilation device as claimed in claim 5, wherein a flexible folding baffle is further arranged between the end part of one side of the movable channel plate, which is far away from the fixed channel plate and close to the impeller direction, and the corresponding inner wall of the ventilation box body.
8. An indoor sound insulation and ventilation device as claimed in claim 1 or 5, wherein the ventilation box body is a rectangular body, and the wall of the inner cavity is provided with a sound insulation material;
the power mechanism comprises a wind wheel, and one end of the rotating shaft can rotatably extend out of the ventilation box body and is connected with the wind wheel.
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| CN201810149495.2A CN108286769B (en) | 2018-02-13 | 2018-02-13 | Indoor sound insulation ventilation unit |
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| CN201810149495.2A CN108286769B (en) | 2018-02-13 | 2018-02-13 | Indoor sound insulation ventilation unit |
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| CN108286769B true CN108286769B (en) | 2020-08-11 |
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| CN110478998B (en) * | 2019-08-22 | 2021-09-07 | 杭州勤立机械有限公司 | Tidal power station power distribution cabinet salt mist removing equipment utilizing sea wind self-purification |
| CN114165077B (en) * | 2021-11-19 | 2023-07-04 | 北京城乡建设集团有限责任公司 | Self-help hydrogenation station |
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| US4336748A (en) * | 1979-09-30 | 1982-06-29 | Axis Products Limited | Fluid exchanger |
| CN101231013A (en) * | 2007-01-26 | 2008-07-30 | 王斌 | Automatic regulation wind gap |
| CN201152600Y (en) * | 2007-12-11 | 2008-11-19 | 张乐 | Energy saving ventilation apparatus for indoor and outdoor |
| CN101813362B (en) * | 2009-02-24 | 2012-08-08 | 胡光南 | Multifunctional ventilation air-conditioning fan |
| CN102734889B (en) * | 2011-03-31 | 2016-02-24 | 广东松下环境系统有限公司 | Air interchanger |
| CN108344096B (en) * | 2018-02-13 | 2020-04-24 | 重庆大学 | Building ventilation structure |
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| CN2125098U (en) * | 1992-06-18 | 1992-12-16 | 清华大学 | Low-noise elimination ventilator |
| CN1614202A (en) * | 2004-08-23 | 2005-05-11 | 王洪泽 | Muffler on fluid pipe and instralling method thereof |
| CN200982305Y (en) * | 2006-12-07 | 2007-11-28 | 岳国胜 | Fan |
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