CN114322272A - On-off device and epidemic prevention combined ventilation system - Google Patents
On-off device and epidemic prevention combined ventilation system Download PDFInfo
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- CN114322272A CN114322272A CN202111474699.1A CN202111474699A CN114322272A CN 114322272 A CN114322272 A CN 114322272A CN 202111474699 A CN202111474699 A CN 202111474699A CN 114322272 A CN114322272 A CN 114322272A
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Abstract
The invention discloses an on-off device and a tie epidemic combined ventilation system, wherein the tie epidemic combined ventilation system comprises the on-off device, and the on-off device comprises: the device comprises a device main body, a first ventilation channel is arranged in the device main body, a first ventilation opening communicated with the first ventilation channel is formed in one end of the device main body, a second ventilation opening communicated with the first ventilation channel is formed in the other end of the device main body, an extension part is arranged on the side part of the device main body, a second ventilation channel communicated with the first ventilation channel is formed in the extension part, a third ventilation opening communicated with the second ventilation channel is formed in one end, away from the device main body, of the extension part, a first valve plate is arranged in the first ventilation channel and corresponds to the first ventilation opening, a second valve plate is arranged in the first ventilation channel and corresponds to the second ventilation opening, and a third valve plate is arranged in the second ventilation channel and corresponds to the third ventilation opening; and the driving device is arranged on the device main body and can drive the first valve plate, the second valve plate and the third valve plate to rotate. When the on-off device is used for a ventilation system, the requirements of industries such as medical treatment or scientific research and the like on the ventilation system can be met.
Description
Technical Field
The invention relates to the field of ventilation systems, in particular to an on-off device and a tie epidemic combined ventilation system.
Background
In the prior art, the air valves installed on the ventilation duct can be divided into an adjustable air valve and a sealed air valve according to the purpose, wherein the adjusting valve adjusts the air volume by adjusting the opening and closing degree of the valve plate, and the sealed air valve controls the on-off of the ventilation duct by controlling the opening and closing of the valve plate. Some existing closed air valves are designed from mechanical structures to improve the sealing performance, for example, the machining precision and the assembling precision of a valve plate and a valve body are improved or a sealing rubber strip is installed on the valve plate, but the mechanical structures have a lot of fit gaps, so that the air leakage of the closed air valve still exists, and the sealing performance of the closed air valve cannot meet the requirements of industries such as medical treatment or scientific research on ventilation systems.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the on-off device for the ventilation system, which can meet the requirements of industries such as medical treatment or scientific research and the like on the ventilation system.
The invention also provides a tie epidemic combined ventilation system with the on-off device.
An on-off device according to an embodiment of a first aspect of the present invention includes: the device comprises a device main body, a first ventilation channel is arranged in the device main body, a first ventilation opening communicated with the first ventilation channel is arranged at one end of the device main body, the other end of the device main body is provided with a second ventilation opening communicated with the first ventilation channel, an extension part is arranged on the side part of the device main body, a second ventilation channel communicated with the first ventilation channel is arranged in the extension part, one end of the extension part far away from the device main body is provided with a third ventilation opening communicated with the second ventilation channel, at least one first valve plate capable of being opened and closed in a rotating mode is arranged in the first ventilation channel corresponding to the first ventilation opening, at least one second valve plate capable of being opened and closed in a rotating mode is arranged in the first ventilation channel corresponding to the second ventilation opening, at least one third valve plate capable of being opened and closed in a rotating mode is arranged in the second ventilation channel and corresponds to the third ventilation opening; the driving device is arranged on the device main body and can drive the first valve plate, the second valve plate and the third valve plate to rotate simultaneously or respectively.
The on-off device provided by the embodiment of the invention at least has the following beneficial effects: when the air supply device is used, the on-off device is installed on a ventilation pipeline, wherein the third air inlet is used for being connected into an external air source, when ventilation is needed, the first valve plate and the second valve plate are opened through the driving device, the third valve plate is closed at the same time, when ventilation is not needed, the first valve plate and the second valve plate are closed through the driving device, the third valve plate is opened at the same time, at the moment, the external air source supplies air to the area between the first valve plate and the second valve plate in the first ventilation channel through the third air inlet, so that the air pressure of the area between the first valve plate and the second valve plate in the ventilation pipeline is larger than that of other areas, the air circulation in the ventilation pipeline can be effectively blocked, and therefore, when the on-off device is used for the ventilation system, the requirements of industries such as medical treatment or scientific research and the like on the ventilation system can be met, in addition, an external air source is sent into the ventilation pipeline, and air in the area between the first valve plate and the second valve plate can flow to other areas in the ventilation pipeline through the matching gap at the first valve plate and the matching gap at the second valve plate, so that pressure relief is facilitated.
According to some embodiments of the invention, the driving device includes a driving element and a linkage assembly, the driving element is connected to an end of the first valve plate and can drive the first valve plate to rotate, the first valve plate, the second valve plate and the third valve plate are all connected to the linkage assembly, and the first valve plate can drive the second valve plate and the third valve plate to rotate through the linkage assembly.
According to some embodiments of the invention, the linkage assembly is a linkage assembly.
According to some embodiments of the invention, the linkage assembly includes a first link, a second link, a third link, and a fourth link, the end part of the first valve plate is connected with a first swing arm, one end of the first swing arm far away from the first valve plate is hinged with the first connecting rod, a second swing arm is arranged at the end part of the second valve plate, the second swing arm and the first swing arm are positioned at the same side, one end of the second swing arm far away from the second valve plate is hinged with the second connecting rod, the end part of the third valve plate is provided with a third swing arm, the third swing arm and the first swing arm are positioned on the same side, one end of the third swing arm far away from the third valve plate is hinged to one end of the third connecting rod, the other end of the third connecting rod is hinged to the second connecting rod, one end of the fourth connecting rod is hinged to the first connecting rod, and the other end of the fourth connecting rod is hinged to the second connecting rod.
According to some embodiments of the invention, the device body is a unitary structure.
A tie-down combined ventilation system according to an embodiment of the second aspect of the invention comprises an on-off device according to an embodiment of the first aspect of the invention described above.
The tie epidemic combined ventilation system provided by the embodiment of the invention has at least the following beneficial effects: when the air conditioner is used, the on-off device is installed on the ventilation pipeline of the epidemic prevention combined ventilation system, wherein the third air inlet is used for being connected into an external air source, when ventilation is needed, the first valve plate and the second valve plate are opened through the driving device, the third valve plate is closed at the same time, when ventilation is not needed, the first valve plate and the second valve plate are closed through the driving device, the third valve plate is opened at the same time, at the moment, the external air source supplies air to the area between the first valve plate and the second valve plate in the first ventilation channel through the third air inlet, so that the air pressure of the area between the first valve plate and the second valve plate in the ventilation pipeline is larger than that of other areas, the air circulation in the ventilation pipeline can be effectively blocked, and the epidemic prevention combined ventilation system can meet the requirements of the medical industry on the ventilation system, in addition, an external air source is sent into the ventilation pipeline, and air in the area between the first valve plate and the second valve plate can flow to other areas in the ventilation pipeline through the matching gap at the first valve plate and the matching gap at the second valve plate, so that pressure relief is facilitated.
According to some embodiments of the invention, the aforementioned epidemic prevention combined ventilation system further comprises: the air conditioner tail end unit comprises a first air inlet section, a filtering section, a second air inlet section and an air outlet section which are sequentially arranged; the air conditioner comprises a main air return channel, a first air duct and a second air duct are connected to the main air return channel, one end, far away from the main air return channel, of the first air duct is connected to a first air inlet section through a closed air valve, one end, far away from the main air return channel, of the second air duct is connected to a first air vent of a device main body, and a second air vent of the device main body is connected to a second air inlet section; one end of the air supply pipeline is connected to the air outlet section, and the other end of the air supply pipeline is connected to a third air vent of the device main body; a filter disposed within the filter section; and the fan is arranged in the air outlet section.
According to some embodiments of the invention, the filter is a high efficiency filter.
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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first schematic structural diagram of an on-off device according to an embodiment of the present invention;
FIG. 2 is a diagrammatic view of the structure shown in FIG. 1;
FIG. 3 is a second schematic structural view of the on-off device according to the embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a diagrammatic view of the structure shown in FIG. 3;
FIG. 6 is a schematic structural view of a combined flat air and ventilation system according to an embodiment of the present invention.
Reference numerals:
the device comprises a device main body 100, a first ventilation channel 110, a first ventilation opening 120, a second ventilation opening 130, an extension part 140, a second ventilation channel 141, a third ventilation opening 142, a first valve plate 150, a first swing arm 151, a second valve plate 160, a second swing arm 161, a third valve plate 170, a third swing arm 171, a driving part 200, a connecting rod assembly 210, a first connecting rod 211, a second connecting rod 212, a third connecting rod 213, a fourth connecting rod 214, an air conditioner terminal unit 300, a first air inlet section 310, a filtering section 320, a second air inlet section 330, an air outlet section 340, a total return air channel 400, a first ventilation pipeline 410, a second ventilation pipeline 420, a closed air valve 500, an air supply pipeline 600, a filter 700, a fan 800 and an air outlet flange 900.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if several, more than, less than, more than, above, below, or within words appear, several means are one or more, several means are two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, within, etc. are understood as including the number.
In the description of the present invention, if the first, second, etc. terms appear, they are only used for distinguishing technical features, but are not to be interpreted as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 5, the on-off device according to the embodiment of the present invention includes a device body 100 and a driving device.
A first ventilation channel 110 is arranged in the device main body 100, one end of the device main body 100 is provided with a first ventilation opening 120 communicated with the first ventilation channel 110, the other end of the device main body 100 is provided with a second ventilation opening 130 communicated with the first ventilation channel 110, the side part of the device main body 100 is provided with an extension part 140, a second ventilation channel 141 communicated with the first ventilation channel 110 is arranged in the extension part 140, one end of the extension part 140 far away from the device main body 100 is provided with a third ventilation opening 142 communicated with the second ventilation channel 141, at least one first valve plate 150 capable of being opened and closed in a rotating mode is arranged in the first ventilation channel 110 corresponding to the first ventilation opening 120, at least one second valve plate 160 capable of being opened and closed in a rotating mode is arranged in the second ventilation channel 141 corresponding to the third ventilation opening 142, and the driving device is arranged on the device main body 100, the driving device can drive the first valve plate 150, the second valve plate 160 and the third valve plate 170 to rotate simultaneously or respectively.
When the ventilation system is used, the on-off device is installed on the ventilation pipeline, wherein the third ventilation opening 142 is used for accessing an external air source, referring to fig. 1 and 2, when ventilation is needed, the first valve plate 150 and the second valve plate 160 are opened by the driving device, and the third valve plate 170 is closed at the same time, referring to fig. 3 and 5, when ventilation is not needed, the first valve plate 150 and the second valve plate 160 are closed by the driving device, and the third valve plate 170 is opened at the same time, at this time, the external air source supplies air to the area between the first valve plate 150 and the second valve plate 160 in the first ventilation channel 110 through the third ventilation opening 142, so that the air pressure of the area between the first valve plate 150 and the second valve plate 160 in the ventilation pipeline is greater than that of other areas, thereby effectively blocking the ventilation of the ventilation pipeline, and therefore when the on-off device is used in the ventilation system, the requirements of the industries such as medical treatment or scientific research can be met, in addition, the wind from the external wind source into the region between the first valve plate 150 and the second valve plate 160 in the ventilation duct may flow to other regions in the ventilation duct through the fitting gap at the first valve plate 150 and the fitting gap at the second valve plate 160, so as to be relieved.
It should be noted that, in some embodiments, the driving device includes a driving member 200 and a linkage assembly, the driving member 200 is connected to an end of the first vane 150 and can drive the first vane 150 to rotate, the first vane 150, the second vane 160 and the third vane 170 are all connected to the linkage assembly, the first vane 150 can drive the second vane 160 and the third vane 170 to rotate through the linkage assembly, that is, the driving member 200 can drive the first vane 150, the second vane 160 and the third vane 170 to rotate at the same time.
It should be noted that, in some embodiments, the driving member may also be connected to an end portion of the second valve plate, and is not limited herein.
Referring to fig. 1, 3 and 4, in some embodiments, the linkage assembly is a linkage assembly 210, which has a simple structure and is easy to implement, specifically, the linkage assembly 210 includes a first linkage 211, a second linkage 212, a third linkage 213 and a fourth linkage 214, the end of the first valve plate 150 is connected to a first swing arm 151, one end of the first swing arm 151, which is far away from the first valve plate 150, is hinged to the first linkage 211, the end of the second valve plate 160 is provided with a second swing arm 161, the second swing arm 161 and the first swing arm 151 are located on the same side, one end of the second swing arm 161, which is far away from the second valve plate 160, is hinged to the second linkage 212, the end of the third swing arm 170 is provided with a third swing arm 171, the third swing arm 171 and the first swing arm 151 are located on the same side, one end of the third swing arm 171, which is far away from the third valve plate 170, the other end of the third linkage 213 is hinged to the second linkage 212, one end of the fourth link 214 is hinged to the first link 211, and the other end of the fourth link 214 is hinged to the second link 212, wherein the driving member 200 is an actuator.
It should be noted that in some embodiments, the driving member may also be a motor, and correspondingly, the linkage assembly may also be a timing belt assembly or a gear assembly, which is not limited herein.
It should be noted that, in some embodiments, the device body 100 is a one-piece structure, which is beneficial to improve the sealing performance of the device body 100 and is convenient for production and assembly.
It should be noted that, in some embodiments, the device main body may also be a split structure, specifically, the above-mentioned on-off device may also be composed of three existing sealed air valves and a ventilation duct, a ventilation opening is formed at a side portion of the ventilation duct, one of the sealed air valves is connected to the ventilation opening, and the other two sealed air valves are respectively connected to two ends of the ventilation duct, which is not limited herein.
According to the embodiment of the invention, the tie epidemic combined ventilation system comprises the on-off device.
When the air ventilation system is used, the on-off device is arranged on the ventilation pipeline of the epidemic prevention combined ventilation system, wherein the third ventilation opening 142 is used for being connected with an external air source, when ventilation is needed, the first valve plate 150 and the second valve plate 160 are opened through the driving device, and the third valve plate 170 is closed at the same time, when ventilation is not needed, the first valve plate 150 and the second valve plate 160 are closed through the driving device, and the third valve plate 170 is opened at the same time, at the moment, the external air source supplies air to the area between the first valve plate 150 and the second valve plate 160 in the first ventilation channel 110 through the third ventilation opening 142, so that the air pressure of the area between the first valve plate 150 and the second valve plate 160 in the ventilation pipeline is larger than that of other areas, the air circulation in the ventilation pipeline can be effectively blocked, and the epidemic prevention combined ventilation system can meet the requirements of the medical industry on the ventilation system, in addition, the wind from the external wind source into the region between the first valve plate 150 and the second valve plate 160 in the ventilation duct may flow to other regions in the ventilation duct through the fitting gap at the first valve plate 150 and the fitting gap at the second valve plate 160, so as to be relieved.
Referring to fig. 6, in some embodiments, the aforementioned flat air combined ventilation system further includes an air conditioning end unit 300, a main return air channel 400, a supply air duct 600, a filter 700, a fan 800, and an outlet air flange 900.
The air conditioning terminal unit 300 includes a first air inlet section 310, a filter section 320, a second air inlet section 330 and an air outlet section 340, which are sequentially arranged, a first ventilation duct 410 and a second ventilation duct 420 are connected to the total return air duct 400, one end of the first ventilation duct 410, which is far away from the total return air duct 400, is connected to the first air inlet section 310 through a sealed air valve 500, one end of the second ventilation duct 420, which is far away from the total return air duct 400, is connected to the first ventilation opening 120 of the device main body 100, the second ventilation opening 130 of the device main body 100 is connected to the second air inlet section 330, one end of the air supply duct 600 is connected to the air outlet section 340, the other end of the air supply duct 600 is connected to the third ventilation opening 142 of the device main body 100, the filter 700 is arranged in the filter section 320, the fan 800 is arranged in the air outlet section 340, and the air outlet flange 900 is connected to the air outlet section 340.
When the ventilation mode is the non-epidemic situation mode, in order to reduce the load of the filter 700 and prolong the service life of the filter 700, the closed air valve 500 is closed to prevent the air in the main return air channel 400 from entering the first air inlet section 310 through the first ventilation pipeline 410, meanwhile, the first valve sheet 150 and the second valve sheet 160 are opened and the third valve sheet 170 is closed through the driving device, and at this time, the air in the main return air channel 400 can sequentially pass through the second ventilation pipeline 420 and the second air inlet section 330 and enter the air outlet section 340 under the action of the fan 800, and finally is discharged through the air outlet flange 900; when the ventilation mode is an epidemic situation mode, the first valve plate 150 and the second valve plate 160 are closed by the driving device, the third valve plate 170 is opened to prevent the air in the total return air channel 400 from entering the second air inlet section 330 from the second ventilation pipeline 420, and the closed air valve 500 is opened at the same time, at this time, the air in the total return air channel 400 can sequentially pass through the first ventilation pipeline 410, the first air inlet section 310, the filter section 320 and the second air inlet section 330 and enter the air outlet section 340 under the action of the fan 800, and is finally discharged through the air outlet flange 900, wherein the air in the total return air channel 400 can be purified by the filter 700 when passing through the filter section 320, after entering the air outlet section 340, part of the air purified by the filter 700 can be used as an air source to supply air to the area between the first valve plate 150 and the second valve plate 160 in the first ventilation channel 110 through the air supply pipeline 600, so that the air not purified in the total return air channel 400 can be effectively prevented from entering the second ventilation pipeline 420 and entering the second air outlet section 340 And (4) the following steps.
It should be noted that, in some embodiments, the filter 700 is a high-efficiency filter, which has high filtering precision and can effectively remove viruses and bacteria in the air.
In the description of the present specification, if reference is made to the description of "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", and "some examples", etc., reference is made to the terminology, it is intended that a particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An on-off device, comprising:
the device comprises a device main body (100), wherein a first ventilation channel (110) is arranged in the device main body (100), one end of the device main body (100) is provided with a first ventilation opening (120) communicated with the first ventilation channel (110), the other end of the device main body (100) is provided with a second ventilation opening (130) communicated with the first ventilation channel (110), the side part of the device main body (100) is provided with an extension part (140), the extension part (140) is internally provided with a second ventilation channel (141) communicated with the first ventilation channel (110), one end of the extension part (140) far away from the device main body (100) is provided with a third ventilation opening (142) communicated with the second ventilation channel (141), at least one first valve plate (150) capable of being opened and closed rotatably is arranged in the first ventilation channel (110) corresponding to the first ventilation opening (120), At least one second valve plate (160) capable of being opened and closed in a rotating mode is arranged corresponding to the second ventilation opening (130), and at least one third valve plate (170) capable of being opened and closed in a rotating mode is arranged in the second ventilation channel (141) corresponding to the third ventilation opening (142);
the driving device is arranged on the device main body (100) and can drive the first valve plate (150), the second valve plate (160) and the third valve plate (170) to rotate simultaneously or respectively.
2. The on-off device of claim 1, wherein the driving device comprises a driving member (200) and a linkage assembly, the driving member (200) is connected to an end of the first valve plate (150) and can drive the first valve plate (150) to rotate, the first valve plate (150), the second valve plate (160) and the third valve plate (170) are all connected with the linkage assembly, and the first valve plate (150) can drive the second valve plate (160) and the third valve plate (170) to rotate through the linkage assembly.
3. The on-off device of claim 2, wherein the linkage assembly is a linkage assembly (210).
4. The on-off device according to claim 3, wherein the connecting rod assembly (210) comprises a first connecting rod (211), a second connecting rod (212), a third connecting rod (213) and a fourth connecting rod (214), the end of the first valve plate (150) is connected with a first swing arm (151), one end of the first swing arm (151) far away from the first valve plate (150) is hinged to the first connecting rod (211), the end of the second valve plate (160) is provided with a second swing arm (161), the second swing arm (161) is located on the same side as the first swing arm (151), one end of the second swing arm (161) far away from the second valve plate (160) is hinged to the second connecting rod (212), the end of the third valve plate (170) is provided with a third swing arm (171), and the third swing arm (171) is located on the same side as the first swing arm (151), one end, far away from the third valve plate (170), of the third swing arm (171) is hinged to one end of a third connecting rod (213), the other end of the third connecting rod (213) is hinged to the second connecting rod (212), one end of a fourth connecting rod (214) is hinged to the first connecting rod (211), and the other end of the fourth connecting rod (214) is hinged to the second connecting rod (212).
5. The on-off device according to claim 1, characterized in that said device body (100) is a one-piece structure.
6. A tie-down combined ventilation system, characterized in that it comprises an on-off device according to any of claims 1 to 5.
7. The tie-epidemic combined ventilation system of claim 6, further comprising:
the air conditioner tail end unit (300) comprises a first air inlet section (310), a filtering section (320), a second air inlet section (330) and an air outlet section (340) which are sequentially arranged;
a total air return channel (400), wherein a first ventilation pipeline (410) and a second ventilation pipeline (420) are connected to the total air return channel (400), one end, far away from the total air return channel (400), of the first ventilation pipeline (410) is connected to the first air inlet section (310) through a sealed air valve (500), one end, far away from the total air return channel (400), of the second ventilation pipeline (420) is connected to the first ventilation opening (120) of the device main body (100), and the second ventilation opening (130) of the device main body (100) is connected to the second air inlet section (330);
one end of the air supply pipeline (600) is connected to the air outlet section (340), and the other end of the air supply pipeline (600) is connected to a third air outlet (142) of the device main body (100);
a filter (700), the filter (700) disposed within the filter section (320);
the fan (800) is arranged in the air outlet section (340).
8. The tie-epidemic prevention combined ventilation system of claim 7, wherein the filter (700) is a high efficiency filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111474699.1A CN114322272B (en) | 2021-12-06 | 2021-12-06 | On-off device and epidemic prevention combined ventilation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111474699.1A CN114322272B (en) | 2021-12-06 | 2021-12-06 | On-off device and epidemic prevention combined ventilation system |
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| CN114322272A true CN114322272A (en) | 2022-04-12 |
| CN114322272B CN114322272B (en) | 2022-09-16 |
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| CN202111474699.1A Active CN114322272B (en) | 2021-12-06 | 2021-12-06 | On-off device and epidemic prevention combined ventilation system |
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| CN213089955U (en) * | 2020-07-08 | 2021-04-30 | 江苏江平新环境科技有限公司 | Constant temperature and humidity intelligent combined air conditioning unit |
| CN214406291U (en) * | 2021-02-04 | 2021-10-15 | 皇家动力(武汉)有限公司 | Safe air conditioner exhaust energy-saving system capable of achieving peacetime and wartime quick conversion |
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| CN114322272B (en) | 2022-09-16 |
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