CN210239061U - Unpowered hood with air supply function - Google Patents
Unpowered hood with air supply function Download PDFInfo
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- CN210239061U CN210239061U CN201920759041.7U CN201920759041U CN210239061U CN 210239061 U CN210239061 U CN 210239061U CN 201920759041 U CN201920759041 U CN 201920759041U CN 210239061 U CN210239061 U CN 210239061U
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Abstract
The utility model relates to an unpowered hood with air supply function, the hood sets up the top in the wind channel, the hood includes first blast pipe, second blast pipe and fluidic device, the wind channel includes air inlet duct and exhaust passage, the fixed first baffle that is provided with in first blast pipe lower part, first gas vent and first air inlet have been seted up on the interior wall of first blast pipe, vertical fixed second baffle that is provided with in the second blast pipe, second gas vent and second air inlet have been seted up on the lateral wall of second blast pipe lower part, second gas vent position and second air inlet position correspond with first gas vent position and first air inlet position respectively, fluidic device is by the air inlet section, draw and penetrate section and air-out section and constitute, draw and penetrate section interior upper portion and be connected with the check plate through the torsional spring rotation. An object of the utility model is to solve current hood and discharge fume when the air flows not smooth or only effective at specific wind direction to can't introduce the problem in the room with outdoor air, provide an unpowered hood with air supply function.
Description
Technical Field
The utility model relates to a production facility technical field especially relates to an unpowered hood with air supply function.
Background
The building exhaust air cap is mainly matched with a smoke exhaust air passage of a building kitchen and a toilet for use, smoke exhaust and ventilation efficiency of the smoke exhaust air passage can be effectively improved through installation of the air cap, backflow of the smoke exhaust air passage is prevented, rainwater is prevented from entering the smoke exhaust air passage, and the like. However, the wind caps are all installed on the roofs of the high-rise buildings, so that the existence and the importance of the wind caps are easily ignored.
The rain shield is arranged at the top of the rigid shaft of the existing building smoke exhaust air passage, the exhaust holes are formed in the periphery of the rigid shaft, the smoke exhaust effect is good when no air flows, the phenomena of unsmooth smoke exhaust and even backward flow of smoke can be formed when air flows, a square wind-proof rain shield cap is also formed, and due to the simple structure, certain effect is achieved only in a specific direction, and unsmooth air exhaust can be formed in other directions.
And the existing blast cap only has an exhaust function, so that outdoor air cannot be introduced into a house, and circulating backflow cannot be formed in the house.
Disclosure of Invention
An object of the utility model is to solve current hood and discharge fume when the air flows not smooth or only effective at specific wind direction to can't introduce the problem in the room with outdoor air, provide an unpowered hood with air supply function.
In order to achieve the above object, the utility model adopts the following technical scheme:
an unpowered hood with an air supply function is arranged at the top end of an air duct and comprises a first exhaust pipe, a second exhaust pipe and a jet device, wherein the lower end of the first exhaust pipe is fixedly connected with the air duct, the lower end of the second exhaust pipe is sleeved in the first exhaust pipe and is rotatably connected with the first exhaust pipe, and the upper end of the second exhaust pipe is communicated with the jet device;
the top end of the air duct is cylindrical, the air duct comprises an air inlet duct and an air outlet duct, and the cross sections of the air inlet duct and the air outlet duct are semicircular;
the vertical section of the first exhaust pipe is in a concave shape with an opening at the lower end, the cross section of the first exhaust pipe is in a ring shape, the lower part of the first exhaust pipe is fixedly provided with a first partition plate, the inner circular wall of the first exhaust pipe is provided with a first exhaust port and a first air inlet, the cross sections of the first exhaust port and the first air inlet are both in a semi-circular arc shape, the projections of the cross sections of the first exhaust port and the first air inlet to the same plane are in a circular shape, the lower end face of the first exhaust port is higher than the upper end face of the first air inlet, the lower end face of the outer circular wall of the first exhaust pipe is fixedly connected with the circular arc-shaped upper end faces of the air inlet duct and the air outlet duct;
the second exhaust pipe is cylindrical, the upper end of the second exhaust pipe is opened, a second baffle is vertically and fixedly arranged in the second exhaust pipe, a second exhaust port and a second air inlet are formed in the side wall of the lower portion of the second exhaust pipe, the cross sections of the second exhaust port and the second air inlet are semicircular, the projections of the second exhaust port and the second air inlet to the same plane are circular, and the position of the second exhaust port and the position of the second air inlet correspond to the position of the first exhaust port and the position of the first air inlet respectively;
the fluidic device is both ends open-ended hollow shell form, and the fluidic device comprises air inlet section, injection section and air-out section, air inlet section, injection section and air-out section integrated into one piece, and the injection section is the pipe form, and injection section both ends are connected with air inlet section and air-out section smooth transition respectively, and injection section middle part and second blast pipe intercommunication and sealed fixed connection draw the section, draw upper portion to rotate through the torsional spring in the injection section and be connected with the check plate, the one side laminating that the check plate is close to the air inlet section is close to one side of air-out section to the second baffle.
Further, the upper end surface of the first exhaust port is flush with the lower surface of the first exhaust pipe top plate.
Further, the lower end surface of the second air inlet is flush with the upper surface of the second exhaust pipe base plate.
Furthermore, the width of one end of the air inlet section, which is far away from the injection section, is greater than the height of the air inlet section; the height of one end of the air outlet section, which is far away from the injection section, is larger than the width of the air outlet section.
Furthermore, the one end that the section was kept away from and is drawn the injection section to the air inlet section and the one end that the section was kept away from and is drawn the injection section to the air outlet section all are oval.
Furthermore, the air outlet section is vertically provided with two tail wings which are vertically and symmetrically arranged, and the tail wings are vertical plate-shaped.
Furthermore, one end of the tail wing is fixedly connected with the air outlet section, and the other end of the tail wing is arc-shaped.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses utilized the efflux principle in the hydrodynamics to come indoor dirty air to discharge into outdoors, when outdoor air passes through the air inlet section and gets into the injection section, because the air current velocity of flow increases and leads to the static pressure to reduce in the injection section, form local negative pressure and then take out the interior dirty air of building through first blast pipe and the second blast pipe that communicates with the wind channel; the utility model does not need power facilities, and ensures the safety and environmental protection of the operation of the hood; first blast pipe and second blast pipe rotate to be connected, through fluidic device's shape, make fluidic device according to wind direction automatically regulated direction, have further guaranteed that the efflux effect is stable effective.
2. The utility model discloses a wind channel includes air inlet duct and exhaust duct, is provided with first baffle and second baffle in first blast pipe and the second blast pipe respectively, makes first blast pipe and second blast pipe equally divide into two parts, and communicates with air inlet duct and exhaust duct respectively, and it is indoor with outdoor fresh air introduction when discharging outdoor dirty air through fluidic device in with the room, is provided with the check board in the fluidic device simultaneously, guarantees through the check board that air supply and air exhaust can not carry out cross contamination.
Drawings
Fig. 1 is a schematic structural view of an unpowered hood with an air supply function of the present invention.
Fig. 2 is an installation schematic diagram of the unpowered hood with air supply function of the present invention.
Fig. 3 is a schematic structural diagram of the jet device of the unpowered hood with air supply function of the present invention.
Fig. 4 is a schematic structural view of the first exhaust pipe of the unpowered hood with an air supply function of the present invention.
Fig. 5 is a schematic structural diagram of a second exhaust pipe of the unpowered hood with an air supply function according to the present invention.
Fig. 6 is a cross-sectional view taken along line a-a in fig. 1 of an unpowered hood with an air supply function according to the present invention.
Fig. 7 is a cross-sectional view taken along a line a-a of fig. 1 of an unpowered hood with an air supply function according to the present invention after rotation of the second exhaust pipe.
Fig. 8 is a cross-sectional view of the unpowered hood with air supply function shown in fig. 1B-B.
Fig. 9 is a cross-sectional view of the unpowered hood with air blowing function of the present invention taken along line B-B of fig. 1 after the second exhaust pipe is rotated.
The reference numbers in the drawings are as follows: 1 is the wind channel, 2 is first blast pipe, 3 is the second blast pipe, 4 is fluidic device, 5 is first baffle, 6 is the second baffle, 7 is first exhaust port, 8 is first air inlet, 9 is the second exhaust port, 10 is the second air inlet, 101 is the air inlet duct, 102 is the exhaust duct, 401 is the air inlet section, 402 is for drawing the penetrating section, 403 is the air-out section, 404 is the fin, 405 is the check board.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
as shown in fig. 1 to 9, an unpowered hood with an air supply function is arranged at the top end of an air duct 1, and comprises a first exhaust pipe 2, a second exhaust pipe 3 and a jet device 4, wherein the lower end of the first exhaust pipe 2 is fixedly connected with the air duct 1, the lower end of the second exhaust pipe 3 is sleeved in the first exhaust pipe 2 and is rotatably connected with the first exhaust pipe 2, and the upper end of the second exhaust pipe is communicated with the jet device 4;
the top end of the air duct 1 is cylindrical, the air duct 1 comprises an air inlet duct 101 and an air outlet duct 102, and the cross sections of the air inlet duct 101 and the air outlet duct 102 are semicircular;
the vertical section of the first exhaust pipe 2 is in a concave shape with an opening at the lower end, the cross section of the first exhaust pipe 2 is in a circular ring shape, the lower part of the first exhaust pipe 2 is fixedly provided with a first partition plate 5, the inner circular wall of the first exhaust pipe 2 is provided with a first exhaust port 7 and a first air inlet 8, the cross sections of the first exhaust port 7 and the first air inlet 8 are both in a semi-circular arc shape, the projections of the cross sections of the first exhaust port 7 and the first air inlet 8 to the same plane are in a circular shape, the lower end face of the first exhaust port 7 is higher than the upper end face of the first air inlet 8, the lower end face of the outer circular wall of the first exhaust pipe 2 is fixedly connected with the circular arc-shaped upper end faces of the air inlet duct 101 and the air outlet duct;
the second exhaust pipe 3 is in a cylindrical shape with an opening at the upper end, a second baffle is vertically and fixedly arranged in the second exhaust pipe 3, a second exhaust port 9 and a second air inlet 10 are formed in the side wall of the lower part of the second exhaust pipe 3, the cross sections of the second exhaust port 9 and the second air inlet 10 are both in a semi-circular arc shape, the projections of the second exhaust port 9 and the second air inlet 10 to the same plane are in a circular shape, and the position of the second exhaust port 9 and the position of the second air inlet 10 respectively correspond to the position of the first exhaust port 7 and the position of;
fluidic device 4 is both ends open-ended hollow shell form, and fluidic device 4 comprises air inlet section 401, draws section 402 and air-out section 403, air inlet section 401, draw section 402 and air-out section 403 integrated into one piece, draw section 402 to be the pipe form, draw section 402 both ends respectively with air inlet section 401 and air-out section 403 smooth transition connection, draw section 402 middle part and 3 intercommunications of second blast pipe and sealed fixed connection, draw section 402 interior upper portion to rotate through the torsional spring and be connected with check plate 405, one side laminating that check plate 405 is close to air inlet section 401 is to one side that air-out section 403 is close to the second baffle.
In order to improve the exhaust effect, in the embodiment, the upper end surface of the first exhaust port 7 is flush with the lower surface of the top plate of the first exhaust pipe 2.
In order to improve the air intake effect, in the present embodiment, the lower end surface of the second air intake port 10 is flush with the upper surface of the bottom plate of the second exhaust pipe 3.
In order to ensure that the direction of the hood can be automatically adjusted along with the wind direction, in this embodiment, the width of one end of the air inlet section 401, which is far away from the injection section 402, is greater than the height; the height of one end of the air outlet section 403 far away from the injection section 402 is larger than the width; the end of the air inlet section 401 far away from the injection section 402 and the end of the air outlet section 403 far away from the injection section 402 are both oval.
In order to enable the direction of the hood to be adjusted along with the wind direction, in this embodiment, the air outlet section 403 is vertically provided with two tail wings 404, the two tail wings 404 are vertically and symmetrically arranged, and the tail wings 404 are in a vertical plate shape; one end of the tail wing 404 is fixedly connected with the air outlet section 403, and the other end of the tail wing is arc-shaped.
The utility model discloses utilized the efflux principle in the hydrodynamics to come indoor dirty air to discharge into outdoors, when outdoor air gets into through air inlet section 401 and draws the section 402, draw the section 402 in because the air current velocity of flow increases and lead to the static pressure to reduce, form local negative pressure and then draw out the interior dirty air of building through first blast pipe 2 and the second blast pipe 3 that communicate with wind channel 1; the utility model does not need power facilities, and ensures the safety and environmental protection of the operation of the hood; first blast pipe 2 and second blast pipe 3 rotate to be connected, through fluidic device 4's shape, make fluidic device 4 according to wind direction automatically regulated direction, have further guaranteed that the efflux effect is stable effective.
Simultaneously the utility model discloses a wind channel 1 includes air inlet 101 and exhaust duct 102, is provided with first baffle 5 and second baffle 6 in first exhaust pipe 2 and the second blast pipe 3 respectively, makes first exhaust pipe 2 and second blast pipe 3 equally divide into two parts, makes fluidic device 4 and exhaust duct 102 intercommunication through first exhaust port 7 and second gas vent 9, makes fluidic device 4 and air inlet 101 intercommunication through first air inlet 8 and second air inlet 10. When the second exhaust pipe 3 rotates, the overlapped part of the second exhaust port 9 and the first exhaust port 7 is communicated, the non-overlapped part is shielded and closed by the first exhaust pipe 2, the overlapped part of the second air inlet 10 and the first air inlet 8 is communicated, and the non-overlapped part is shielded and closed by the first exhaust pipe 2, so that air supply and air exhaust are prevented from being subjected to cross contamination. Dirty air in will be indoor discharges to the outdoor while introducing indoor fresh air through fluidic device 4, is provided with check plate 405 in fluidic device 4 simultaneously, guarantees through check plate 405 that air supply and air exhaust can not carry out cross contamination.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (7)
1. An unpowered hood with an air supply function is arranged at the top end of an air duct (1), and is characterized by comprising a first exhaust pipe (2), a second exhaust pipe (3) and a jet device (4), wherein the lower end of the first exhaust pipe (2) is fixedly connected with the air duct (1), the lower end of the second exhaust pipe (3) is sleeved in the first exhaust pipe (2) and is rotatably connected with the first exhaust pipe (2), and the upper end of the second exhaust pipe is communicated with the jet device (4);
the top end of the air duct (1) is cylindrical, the air duct (1) comprises an air inlet duct (101) and an air outlet duct (102), and the cross sections of the air inlet duct (101) and the air outlet duct (102) are semicircular;
the vertical section of the first exhaust pipe (2) is in a concave shape with an opening at the lower end, the cross section of the first exhaust pipe (2) is in a circular ring shape, a first partition plate (5) is fixedly arranged at the lower part of the first exhaust pipe (2), a first exhaust port (7) and a first air inlet (8) are formed in the inner circular wall of the first exhaust pipe (2), the cross sections of the first exhaust port (7) and the first air inlet (8) are both in a semi-circular arc shape, the projections of the cross sections of the first exhaust port (7) and the first air inlet (8) are in a circular shape to the same plane, the lower end face of the outer circular wall of the first exhaust pipe (2) is higher than the upper end face of the first air inlet (8), the lower end face of the outer circular wall of the first exhaust pipe (2) is fixedly connected with the upper end faces of the air inlet duct (101) and the air outlet duct (102) in a;
the second exhaust pipe (3) is in a cylindrical shape with an opening at the upper end, a second baffle is vertically and fixedly arranged in the second exhaust pipe (3), a second exhaust port (9) and a second air inlet (10) are formed in the side wall of the lower part of the second exhaust pipe (3), the cross sections of the second exhaust port (9) and the second air inlet (10) are in a semicircular arc shape, the projections of the second exhaust port (9) and the second air inlet (10) to the same plane are in a circular shape, and the position of the second exhaust port (9) and the position of the second air inlet (10) correspond to the position of the first exhaust port (7) and the position of the first air;
fluidic device (4) are both ends open-ended hollow shell form, and fluidic device (4) are by air inlet section (401), draw and penetrate section (402) and air-out section (403) and constitute, air inlet section (401), draw and penetrate section (402) and air-out section (403) integrated into one piece, draw and penetrate section (402) and be the pipe form, draw and penetrate section (402) both ends respectively with air inlet section (401) and air-out section (403) smooth transition connection, draw and penetrate section (402) middle part and second blast pipe (3) intercommunication and sealed fixed connection, draw and penetrate section (402) interior upper portion and be connected with check board (405) through the torsional spring rotation, one side laminating to second baffle that check board (405) are close to air-out section (403) is close to one side of air-out section (405) near air-inlet section (401).
2. An unpowered hood with air supply function according to claim 1, characterized in that the upper end face of the first exhaust port (7) is flush with the lower surface of the top plate of the first exhaust pipe (2).
3. An unpowered hood with an air supply function according to claim 1, wherein the lower end face of the second air inlet (10) is flush with the upper surface of the bottom plate of the second exhaust pipe (3).
4. The unpowered hood with the air supply function according to claim 1, wherein the width of one end, away from the ejector section (402), of the air inlet section (401) is larger than the height of the end; the height of one end of the air outlet section (403) far away from the injection section (402) is larger than the width.
5. The unpowered hood with the air supply function according to claim 4, wherein one end of the air inlet section (401) far away from the ejector section (402) and one end of the air outlet section (403) far away from the ejector section (402) are both oval.
6. The unpowered hood with an air supply function according to claim 1, wherein the air outlet section (403) is vertically provided with two tail wings (404), the two tail wings (404) are arranged vertically symmetrically, and the tail wings (404) are in a vertical plate shape.
7. The unpowered hood with an air supply function according to claim 6, wherein the tail wing (404) is fixedly connected with the air outlet section (403) at one end and is arc-shaped at the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920759041.7U CN210239061U (en) | 2019-05-24 | 2019-05-24 | Unpowered hood with air supply function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920759041.7U CN210239061U (en) | 2019-05-24 | 2019-05-24 | Unpowered hood with air supply function |
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| Publication Number | Publication Date |
|---|---|
| CN210239061U true CN210239061U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920759041.7U Active CN210239061U (en) | 2019-05-24 | 2019-05-24 | Unpowered hood with air supply function |
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| CN (1) | CN210239061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110877A (en) * | 2021-12-08 | 2022-03-01 | 黄淮学院 | Energy-saving ventilation building |
-
2019
- 2019-05-24 CN CN201920759041.7U patent/CN210239061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110877A (en) * | 2021-12-08 | 2022-03-01 | 黄淮学院 | Energy-saving ventilation building |
| CN114110877B (en) * | 2021-12-08 | 2022-11-25 | 黄淮学院 | Energy-saving ventilation building |
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