CN113587170B - Rat-proof air duct device and gas stove - Google Patents
Rat-proof air duct device and gas stove Download PDFInfo
- Publication number
- CN113587170B CN113587170B CN202110841802.5A CN202110841802A CN113587170B CN 113587170 B CN113587170 B CN 113587170B CN 202110841802 A CN202110841802 A CN 202110841802A CN 113587170 B CN113587170 B CN 113587170B
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- China
- Prior art keywords
- air
- shell
- air duct
- wheel frame
- rat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002955 isolation Methods 0.000 claims abstract description 72
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 241000700159 Rattus Species 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 241001465754 Metazoa Species 0.000 abstract description 4
- 241000699670 Mus sp. Species 0.000 description 19
- 241000699666 Mus <mouse, genus> Species 0.000 description 13
- 230000004308 accommodation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/36—Protective guards, e.g. for preventing access to heated parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/008—Ranges
Abstract
The invention discloses a rat-proof air duct device and a gas stove, comprising a shell and an isolation module, wherein an air duct, an air inlet and an air outlet which are respectively communicated with the air duct are arranged in the shell, the isolation module is rotatably arranged on the shell and positioned in the air duct, the isolation module is provided with a vent group, and rats or other animals can enter the air duct from the air outlet but can be blocked by the isolation module, and the rats can dig and grab the isolation module, but because the isolation module can rotate, the application force of the rats can be released, the rats are not easy to damage the isolation module, the durability is improved, and the rat-proof effect is improved.
Description
Technical Field
The invention relates to the technical field of pipeline components, in particular to a rat-proof air duct device and a gas stove.
Background
The pipeline is used as a component for guiding the air flow to transmit, and is applied to various fields, but when the pipeline is applied to a severe environment, mice can reach various positions through the pipeline and damage electric appliances at various positions, for example, when the pipeline is applied to a gas furnace, the pipeline can be respectively communicated with a combustion chamber of the gas furnace and the outside, so that burnt gas is transmitted to the outside, and because a certain amount of heat is generated after combustion, the heat can be discharged outwards along the pipeline, so that animals such as mice enter the gas furnace along the pipeline, therefore, the pipeline is generally provided with a rat protection net and the like, but because the rat protection net is fixedly arranged in the pipeline, only the mice are blocked, the mice can dig, grab and bite to the fixed wall surface according to the habit of the mice, the rat protection net is very easy to tear, and the practical effect is poor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the rat-proof air duct device, which utilizes the isolation module arranged in a rotating way to improve the durability and the rat-proof effect.
The invention also provides a gas furnace with a good rat-proof effect.
According to an embodiment of the first aspect of the present invention, a rat-proof air duct device includes: an air duct is arranged in the shell, and an air inlet and an air outlet which are respectively communicated with the air duct are formed in the shell; the isolation module is rotatably arranged on the shell and positioned in the air duct, and the ventilation opening group is arranged on the isolation module.
The rat-proof air duct device provided by the embodiment of the invention has at least the following beneficial effects:
according to the rat-proof air duct device, the isolation module is rotatably arranged in the shell, air flow can flow into the air duct from the air inlet and flow to the outside through the vent group and the air outlet, and a rat or other animals can enter the air duct from the air outlet but can be blocked by the isolation module, so that the rat can dig and grab the isolation module, but because the isolation module can rotate, the force applied by the rat can be released, the rat is not easy to damage the isolation module, the durability is improved, and meanwhile, the rat-proof effect is improved.
According to some embodiments of the invention, the isolation module comprises a rolling cage assembly rotatably arranged on the shell, a containing cavity is arranged in the rolling cage assembly, an inlet and an outlet are arranged on the rolling cage assembly, the inlet and the outlet are respectively communicated with the containing cavity and a part of the air duct close to the air outlet, and the ventilation opening group is arranged on the rolling cage assembly to be respectively communicated with the containing cavity and the part of the air duct close to the air inlet.
According to some embodiments of the invention, the rolling cage assembly comprises a rotating shaft, a first wheel frame and a second wheel frame, the rotating shaft is rotatably arranged on the shell, the first wheel frame and the second wheel frame are both sleeved on the rotating shaft, the first wheel frame and the rotating shaft are connected through a first isolation structure, the first wheel frame and the second wheel frame are connected through a second isolation structure, the first wheel frame, the second wheel frame, the first isolation structure and the second isolation structure enclose at least part of the accommodating cavity, the second wheel frame and the rotating shaft form the inlet and the outlet, and the vent set is arranged on the first isolation structure and/or the second isolation structure.
According to some embodiments of the invention, the second isolation structure comprises a plurality of struts, one end of each strut is connected with the first wheel frame, the other end of each strut is connected with the second wheel frame, the plurality of struts are circumferentially arranged around the rotating shaft, at least part of the vent group is formed by the interval between two adjacent struts, and air deflectors are arranged on part of the struts.
According to some embodiments of the invention, the housing comprises a first air shell and a second air shell detachably connected with the first air shell, a first air segment is arranged in the first air shell, the air outlet is arranged on the first air shell and is communicated with the first air segment, a second air segment is arranged in the second air shell, the air inlet is arranged on the second air shell and is communicated with the second air segment, the first air segment and the second air segment form at least part of the air duct, and the isolation module is arranged on the first air shell and is positioned in the first air segment.
According to some embodiments of the invention, the first and second shells are tubular, and the first and second shells are nested with each other.
According to some embodiments of the invention, the air intake system further comprises a screen assembly disposed between the roller cage assembly and the air intake.
According to some embodiments of the invention, the screen assembly is detachably disposed to the second housing.
According to some embodiments of the invention, a rotation detection module is arranged between the isolation module and the shell, and the rotation detection module is connected with the prompt module.
According to a second aspect of the invention, a gas stove comprises the rat-proof air duct device disclosed in any embodiment.
The gas stove provided by the embodiment of the invention has at least the following beneficial effects:
the gas stove provided by the invention utilizes the rat-proof air duct device, so that rats are not easy to enter the gas stove, and a better rat-proof effect is achieved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of an embodiment of a mouse-proof air duct device of the present invention;
FIG. 2 is a schematic cross-sectional view of one embodiment of a mouse-proof air duct device of the present invention;
FIG. 3 is a schematic view of a roller assembly of one embodiment of a mouse-proof air duct device according to the present invention;
FIG. 4 is a schematic view of another view of the roller cage assembly of one embodiment of the anti-mouse air duct device of the present invention;
fig. 5 is an enlarged schematic view of a portion a of one embodiment of the mouse-proof air duct device of fig. 2.
Reference numerals:
the air conditioner comprises a shell 100, a first air shell 110, a first air section 111, a second air shell 120, a second air section 121, an air inlet 130, an air outlet 140, an isolation module 200, a vent set 210, an inlet and an outlet 220, a containing cavity 230, a rotating shaft 240, a first wheel frame 250, a second wheel frame 260, a first isolation structure 270, a rod 271, a second isolation structure 280, a supporting rod 281 and a screen assembly 300.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, a rat-proof air duct device according to an embodiment of the present invention includes a housing 100 and an isolation module 200, wherein an air duct, an air inlet 130 and an air outlet 140 respectively communicating with the air duct are disposed in the housing 100, the isolation module 200 is rotatably disposed on the housing 100 and located in the air duct, and a vent group 210 is disposed on the isolation module 200.
The housing 100 is generally elongated, and the specific shape can be produced by a manufacturer according to practical situations, and the isolation module 200 can be relatively close to the air outlet 140, so as to prevent mice from going deep into the air duct.
The isolation module 200 is rotatably arranged in the shell 100, wind flows can flow into the air channel from the air inlet 130, flows to the outside through the air vent group 210 and the air outlet 140, and mice or other animals can enter the air channel from the air outlet 140 but can be blocked by the isolation module 200, so that the mice can dig and grab the isolation module 200, but the application force of the mice can be released due to the rotation of the isolation module 200, so that the mice are not easy to damage the isolation module 200, the durability is improved, and the rat-proof effect is improved.
In some embodiments of the present invention, as shown in fig. 1-4, the isolation module 200 includes a roller cage assembly rotatably disposed on the housing 100, a receiving chamber 230 is disposed in the roller cage assembly, an inlet and an outlet 220 are disposed on the roller cage assembly, the inlet and the outlet 220 are respectively communicated with the receiving chamber 230 and a part of the air duct near the air outlet 140, and the vent group 210 is disposed on the roller cage assembly to respectively communicate with the receiving chamber 230 and the part of the air duct near the air inlet 130.
The mouse can enter the wind channel from air outlet 140 to enter into accommodation chamber 230 through import and export 220 in the wind channel that is close to air outlet 140 one side, and roll the cage subassembly and keep apart the mouse, in order to prevent that the mouse from going on, and the mouse that is arranged in accommodation chamber 230, if the application of force rolls the cage subassembly, roll the cage subassembly focus and change, roll the cage subassembly and can rotate, make the mouse walk in it, because do not block the mouse rigidly, the mouse can not be torn the wall, not fragile roll the cage subassembly.
In some embodiments of the present invention, the isolation module 200 may further be a plurality of balls, the balls are arranged on the cross section of the air duct to substantially block the cross section of the air duct, the air vent set 210 is formed at intervals between the balls, the balls apply force to the balls, the balls continuously rotate to release force, and the balls are not easy to be bitten by the mice, so that the mice are not easy to be damaged.
In the embodiment of the isolation module 200 being a cage assembly, as shown in fig. 1-4, the cage assembly includes a rotating shaft 240, a first wheel frame 250 and a second wheel frame 260, the rotating shaft 240 is rotatably disposed on the housing 100, the first wheel frame 250 and the second wheel frame 260 are both sleeved on the rotating shaft 240, the first wheel frame 250 and the rotating shaft 240 are connected through a first isolation structure 270, the first wheel frame 250 and the second wheel frame 260 are connected through a second isolation structure 280, the first wheel frame 250, the second wheel frame 260, the first isolation structure 270 and the second isolation structure 280 enclose at least a part of the accommodating cavity 230, an inlet and an outlet 220 are formed between the second wheel frame 260 and the rotating shaft 240, and the vent set 210 is disposed on the first isolation structure 270 and/or the second isolation structure 280.
For the close fit with the rolling cage assembly, the cross section of the housing 100 may be rectangular, the length of the rectangle is substantially the same as the diameters of the first wheel frame 250 and the second wheel frame 260, the width of the rectangle is substantially the same as the length of the rotating shaft 240, for the simple structure, and for effectively preventing mice from entering the air duct close to the air inlet 130, the air duct close to the air outlet 140 and the air duct close to the air inlet 130 are arranged in a staggered manner, one end of the air duct close to the air outlet 140, which faces away from the air inlet 130, faces the inlet 220 between the second wheel frame 260 and the rotating shaft 240, and after the mice enter the accommodating cavity 230 from the inlet 220, the mice cannot enter the air duct close to the air inlet 130 any more, and can only return to the air duct close to the air outlet 140 from the inlet 220.
In addition, the vent set 210 may be disposed on the first isolation structure 270, or disposed on the second isolation structure 280, or disposed on the first isolation structure 270 and the second isolation structure 280, and the air flow may enter the accommodating cavity 230 from the vent set 210, and then enter the air duct near the air outlet 140 from the inlet 220.
In some embodiments of the present invention, as shown in fig. 3 and 4, the second isolation structure 280 includes a plurality of struts 281, one end of each strut 281 is connected to the first wheel frame 250, the other end of each strut 281 is connected to the second wheel frame 260, the plurality of struts 281 are circumferentially disposed around the rotating shaft 240, at least part of the vent group 210 is formed by the interval between two adjacent struts 281, the struts 281 can better isolate mice, and support the first wheel frame 250 and the second wheel frame 260, the connection is firm, the mice apply force to the struts 281, so that the center of gravity of the roller cage assembly is changed, and the roller cage assembly rotates, and the wind current can pass through the interval between the two struts 281.
In some embodiments of the present invention, a wind deflector (not shown) is disposed on a portion of the struts 281, and the wind flow entering from the air inlet 130 can apply force on the wind deflector and then enter the accommodating chamber 230 through the air vent set 210.
In some embodiments of the present invention, each of the first isolation structure 270 and the second isolation structure 280 may be formed by a baffle, and the vent set 210 may be a through hole formed on the baffle.
In some embodiments of the present invention, as shown in fig. 1, 2 and 5, the housing 100 includes a first air shell 110 and a second air shell 120 detachably connected to the first air shell 110, a first air segment 111 is disposed in the first air shell 110, an air outlet 140 is disposed on the first air shell 110 and is in communication with the first air segment 111, a second air segment 121 is disposed in the second air shell 120, an air inlet 130 is disposed on the second air shell 120 and is in communication with the second air segment 121, the first air segment 111 and the second air segment 121 form at least a part of an air duct, and an isolation module 200 is disposed on the first air shell 110 and is located in the first air segment 111.
When a mouse enters the first air shell 110, or the mouse damages the isolation module 200, or the mouse dies in the first air shell 110, a user can detach the first air shell 110 from the second air shell 120, only the first air shell 110 and the isolation module 200 therein are replaced, the second air shell 120 is not required to be replaced, and the second air shell 120 is not required to be detached from the connected electrical components.
In some embodiments of the present invention, the first and second shells 110, 120 are each tubular, and the first and second shells 110, 120 are nested with each other.
Further, the first and second wind shells 110 and 120 may be connected by a structure such as a buckle or a screw to achieve the detachable connection.
In some embodiments of the present invention, as shown in fig. 2 and 5, in order to prevent the mice from directly passing through the air inlet 130 after the isolation module 200 is damaged, the present design further includes a screen assembly 300, wherein the screen assembly 300 is disposed between the cage assembly and the air inlet 130, thereby further improving the level of protection against mice.
In some embodiments of the present invention, the screen assembly 300 is detachably disposed on the second air casing 120, and in particular, the second air casing 120 may be sleeved on the screen assembly 300 and detachably connected through a buckle or a screw, so that the screen assembly 300 can be replaced after being worn, and further, the screen assembly 300 can be removed and replaced after the first air casing 110 and the second air casing 120 are removed.
In some embodiments of the present invention, a rotation detection module is disposed between the isolation module 200 and the housing 100, and the rotation detection module is connected to the prompt module (not shown in the drawings).
The rotation detection module may be an encoder, a rotation speed sensor, a photosensor, a hall sensor, etc., in embodiments where the air deflector is not used, generally, if the isolation module 200 is not tampered with by a mouse, the isolation module 200 may not rotate, and the rotation detection module may be used to determine whether a mouse is present or not.
The prompting module can comprise a processor such as an MCU and the like and a buzzer or an indicator lamp connected with the processor, and the buzzer or the indicator lamp is controlled to act after the existence of the mouse is judged so as to prompt the user to check.
According to a second aspect of the invention, a gas stove comprises the rat-proof air duct device disclosed in any embodiment.
Wherein the air outlet of the gas stove can be communicated with the air inlet 130 of the rat-proof air duct device.
The gas stove provided by the invention utilizes the rat-proof air duct device, so that rats are not easy to enter the gas stove, and a better rat-proof effect is achieved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A rat-proof air duct device, comprising:
an air duct is arranged in the shell, and an air inlet and an air outlet which are respectively communicated with the air duct are formed in the shell;
the isolation module is rotatably arranged on the shell and positioned in the air duct, and the isolation module is provided with a vent group;
the isolation module comprises a rolling cage assembly rotatably arranged on the shell, a containing cavity is arranged in the rolling cage assembly, an inlet and an outlet are arranged on the rolling cage assembly, the inlet and the outlet are respectively communicated with the containing cavity and a part of the air duct close to the air outlet, and the vent group is arranged on the rolling cage assembly to be respectively communicated with the containing cavity and the part of the air duct close to the air inlet;
the rolling cage assembly comprises a rotating shaft, a first wheel frame and a second wheel frame, the rotating shaft is rotatably arranged on the shell, the first wheel frame and the second wheel frame are sleeved on the rotating shaft, the first wheel frame and the rotating shaft are connected through a first isolation structure, the first wheel frame and the second wheel frame are connected through a second isolation structure, at least part of the accommodating cavity is defined by the first wheel frame, the second wheel frame, the first isolation structure and the second isolation structure, an inlet and an outlet are formed between the second wheel frame and the rotating shaft, and the vent set is arranged on the first isolation structure and/or the second isolation structure.
2. A rat-proof air duct device according to claim 1, wherein: the second isolation structure comprises a plurality of supporting rods, one ends of the supporting rods are connected with the first wheel frame, the other ends of the supporting rods are connected with the second wheel frame, the supporting rods are circumferentially arranged around the rotating shaft, at least part of the vent sets are formed by the intervals of two adjacent supporting rods, and air deflectors are arranged on part of the supporting rods.
3. A rat-proof air duct device according to claim 1, wherein: the shell comprises a first air shell and a second air shell detachably connected with the first air shell, a first air segment is arranged in the first air shell, the air outlet is arranged on the first air shell and is communicated with the first air segment, a second air segment is arranged in the second air shell, the air inlet is arranged on the second air shell and is communicated with the second air segment, the first air segment and the second air segment form at least part of the air channel, and the isolation module is arranged on the first air shell and is positioned in the first air segment.
4. A rat-proof air duct apparatus according to claim 3, wherein: the first air shell and the second air shell are tubular, and the first air shell and the second air shell are sleeved with each other.
5. A rat-proof air duct apparatus according to claim 3, wherein: the air inlet is arranged on the inner side of the air inlet, and the air inlet is arranged on the outer side of the air inlet.
6. The mouse-resistant air duct device of claim 5, wherein: the screen assembly is detachably arranged on the second air shell.
7. A rat-proof air duct device according to claim 1, wherein: and a rotation detection module is arranged between the isolation module and the shell, and is connected with the prompting module.
8. A gas stove comprising a rat-proof air duct device according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841802.5A CN113587170B (en) | 2021-07-26 | 2021-07-26 | Rat-proof air duct device and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841802.5A CN113587170B (en) | 2021-07-26 | 2021-07-26 | Rat-proof air duct device and gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113587170A CN113587170A (en) | 2021-11-02 |
| CN113587170B true CN113587170B (en) | 2024-02-13 |
Family
ID=78249858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110841802.5A Active CN113587170B (en) | 2021-07-26 | 2021-07-26 | Rat-proof air duct device and gas stove |
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| Country | Link |
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| CN (1) | CN113587170B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0655536A1 (en) * | 1993-11-09 | 1995-05-31 | Wilhelm Pütz | Device for preventing rats or similar pests from entering a sewage duct |
| DE19535249A1 (en) * | 1995-02-10 | 1996-08-22 | Schall Guenter Dipl Ing Fh | Rat deterrent incorporated into pipes, with tiered spikes |
| CN2593088Y (en) * | 2002-11-29 | 2003-12-17 | 李水源 | Gas stove guide wall |
| CN2627387Y (en) * | 2003-05-12 | 2004-07-21 | 安薪实业有限公司 | Exhaust smoke ventilator |
| CN202991622U (en) * | 2012-07-30 | 2013-06-12 | 福建省江南电器制造有限公司 | Extractor hood flap wheel |
| CN206491216U (en) * | 2017-02-21 | 2017-09-15 | 南京大学建筑规划设计研究院有限公司 | A kind of air port rat preventing device |
| CN208028672U (en) * | 2018-01-31 | 2018-10-30 | 重庆惠梁机电配件有限公司 | A kind of rotor cage |
| WO2020115462A1 (en) * | 2018-12-04 | 2020-06-11 | Bowman Power Group Limited | Squirrel-cage rotor |
-
2021
- 2021-07-26 CN CN202110841802.5A patent/CN113587170B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0655536A1 (en) * | 1993-11-09 | 1995-05-31 | Wilhelm Pütz | Device for preventing rats or similar pests from entering a sewage duct |
| DE19535249A1 (en) * | 1995-02-10 | 1996-08-22 | Schall Guenter Dipl Ing Fh | Rat deterrent incorporated into pipes, with tiered spikes |
| CN2593088Y (en) * | 2002-11-29 | 2003-12-17 | 李水源 | Gas stove guide wall |
| CN2627387Y (en) * | 2003-05-12 | 2004-07-21 | 安薪实业有限公司 | Exhaust smoke ventilator |
| CN202991622U (en) * | 2012-07-30 | 2013-06-12 | 福建省江南电器制造有限公司 | Extractor hood flap wheel |
| CN206491216U (en) * | 2017-02-21 | 2017-09-15 | 南京大学建筑规划设计研究院有限公司 | A kind of air port rat preventing device |
| CN208028672U (en) * | 2018-01-31 | 2018-10-30 | 重庆惠梁机电配件有限公司 | A kind of rotor cage |
| WO2020115462A1 (en) * | 2018-12-04 | 2020-06-11 | Bowman Power Group Limited | Squirrel-cage rotor |
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| Publication number | Publication date |
|---|---|
| CN113587170A (en) | 2021-11-02 |
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