CN110878977A - Stage frame with air circulation - Google Patents

Stage frame with air circulation Download PDF

Info

Publication number
CN110878977A
CN110878977A CN201911126812.XA CN201911126812A CN110878977A CN 110878977 A CN110878977 A CN 110878977A CN 201911126812 A CN201911126812 A CN 201911126812A CN 110878977 A CN110878977 A CN 110878977A
Authority
CN
China
Prior art keywords
air
air circulation
frame
channel
stage frame
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.)
Pending
Application number
CN201911126812.XA
Other languages
Chinese (zh)
Inventor
杨全明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Friendship State Performing Equipment Co Ltd
Original Assignee
Hangzhou Friendship State Performing Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Friendship State Performing Equipment Co Ltd filed Critical Hangzhou Friendship State Performing Equipment Co Ltd
Priority to CN201911126812.XA priority Critical patent/CN110878977A/en
Publication of CN110878977A publication Critical patent/CN110878977A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/007Ventilation with forced flow
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • E04H3/24Constructional features of stages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/32Supports for air-conditioning, air-humidification or ventilation units

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ventilation (AREA)

Abstract

The invention provides a stage frame with air circulation, which relates to the technical field of theater equipment and comprises a fixing frame and an extension column, wherein the extension column is provided with a central shaft hole, the fixing frame is provided with a rotating rod and a driving machine for driving the rotating rod to rotate, at least one part of the rotating rod is positioned in the central shaft hole, the extension column is provided with a first channel and a second channel, a first exhaust fan is arranged in the first channel, a second exhaust fan is arranged in the second channel, the first exhaust fan and the second exhaust fan face opposite directions, and one side of the fixing frame, which is close to the extension column, is provided with an air guide bulge. The stage frame with the air circulation function is simple in structure, convenient to install and maintain, capable of being directly installed on an existing air duct of a theater, capable of being installed through punching at present and good in air supply effect.

Description

Stage frame with air circulation
Technical Field
The invention relates to the technical field of theater equipment,
in particular, the present invention relates to a stage frame with air circulation.
Background
Along with the continuous and vigorous development of the economy of China in recent years, the average income of the whole society is gradually improved, the cultural life requirements of people are gradually improved, the development of the cultural cause of China is promoted, buildings with various theatre properties, such as a cinema, a conference hall, a television rebroadcasting audience hall and the like, are newly built in various places in China, the requirements of people on the stage effect in the performance activities are higher and higher, various modern large performance fields and the like are arranged, and in order to enable the performance art to generate unusual special effects, various types of stage mechanical equipment are installed, so that the effects of drawing dragon eyes and making a look in the stage performance of dramas are achieved.
However, many auditoriums and the rehearsal halls below the auditoriums need large space, and there are many people in the theater during performance, and a better ventilation environment is urgently needed, but there are many old theaters, the air supply device installed very early is insufficient in air supply capability, or the air supply channel is aged and cannot be maintained, or the maintenance cost is very high, and during stage performance, especially in the spaces of a closed stage, a stage background, a stage bottom, a stage compartment and the like, air circulation is also needed, and these places are narrow and closed, and irreversible damage can be caused to workers due to air silting for a long time.
In a word, the following problems can occur, the air supply pipeline cannot be installed after the theater stage frame is built, the secondary installation of the air supply pipeline is very troublesome, the air supply pipeline cannot be installed on the old theater building, the air supply pipeline is complex to maintain after aging, the air supply pipeline cannot be improved on the existing air duct, the air supply capacity is not optimized, and the air supply pipeline cannot be installed on the existing building.
Therefore, in order to solve the above problems, it is necessary to design a reasonable stage rack with air circulation.
Disclosure of Invention
The invention aims to provide a stage frame with air circulation, which has a simple structure, is convenient to install and maintain, can be directly installed on the existing air duct of a theater, can also be installed by punching at present, and has a good air supply effect.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a take air cycle's stage frame, includes the mount and stretches out the post, it is provided with the centre bore to stretch out the post, be provided with the dwang on the mount and be used for the drive dwang pivoted driving machine, the dwang has at least some to be located the centre bore is downthehole, it is provided with first passageway and second passageway on the post to stretch out, be provided with first air exhauster in the first passageway, be provided with the second air exhauster in the second passageway, first air exhauster with the orientation of second air exhauster is opposite, the mount is close to one side of stretching out the post is provided with the wind-guiding arch.
Preferably, the fixing frame is provided with fixing legs at the side portions thereof for fixing the fixing frame.
Preferably, the fixing leg is provided with a fixing bolt for fixing the fixing leg.
Preferably, the fixing leg extends in a direction approaching the protruding column.
Preferably, the end of the fixing frame is provided with a dust screen extending in the direction of the extending column.
Preferably, the number of the protruding columns is at least one.
Preferably, the rotating rod is provided with a limiting block for limiting the position of the extending column.
Preferably, the number of the limiting blocks is at least two.
Preferably, the limit block at one end of the rotating rod, which is far away from the fixed frame, is provided with a movable blade.
Preferably, the number of the first exhaust fan and the second exhaust fan is at least one.
Preferably, the number of the first channel and the second channel is at least one.
Preferably, at least a part of the wind guide protrusion is arc-shaped.
The stage frame with the air circulation has the beneficial effects that: simple structure, the installation is convenient, and convenient maintenance can directly install on the current wind channel in theatre, also can punch at present and install, and the air supply is effectual.
Drawings
FIG. 1 is a schematic diagram of a stage frame with air circulation according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of a stage frame with air circulation according to the present invention;
FIG. 3 is a schematic cross-sectional view of an extended post of one embodiment of a stage frame with air circulation of the present invention;
FIG. 4 is a schematic cross-sectional view of an extended post of another embodiment of a stage frame with air circulation of the present invention;
in the figure: 1. the device comprises a fixing frame, 11, a rotating rod, 111, a limiting block, 112, a movable blade, 12, a driving machine, 13, an air guide bulge, 14, a fixing foot, 15, a dustproof net, 2, an extending column, 21, a central shaft hole, 22, a first channel, 221, a first exhaust fan, 23, a second channel, 231 and a second exhaust fan.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples.
With the continuous vigorous development of the economy of China in recent years, the average income of the whole society is gradually improved, the cultural life requirements of people are gradually improved, the development of the cultural career of China is promoted, buildings with various theatre properties, such as cinemas, conference halls, television relay audience halls and the like, are newly built in all parts of the country, a large space is needed for a plurality of audience halls and rehearsal halls below the audience halls, structural frame columns cannot extend to floor slabs of the ground of the audience halls, and therefore the ground of the audience halls needs to be designed into a large-span prestressed hollow inclined plate, and a large number of seat ventilation holes need to be reserved under seats on the floor slabs. Therefore, the air supply pipeline cannot be additionally installed after the floor panel and the wall panel of the theater are built, the secondary installation of the air supply pipeline is very troublesome, the air supply pipeline cannot be additionally installed on the old theater building, the air supply pipeline is very complex to maintain after aging, the improvement on the existing air duct cannot be realized, the air supply capacity is not optimized, and the installation on the existing building cannot be realized.
The first embodiment is as follows: as shown in fig. 1 and 3, which are only one embodiment of the present invention, a stage rack with air circulation includes a fixing frame 1 and an extending column 2, where the extending column 2 is provided with a central shaft hole 21, the fixing frame 1 is provided with a rotating rod 11 and a driving machine 12 for driving the rotating rod 11 to rotate, at least a portion of the rotating rod 11 is located in the central shaft hole 21, the extending column 2 is provided with a first channel 22 and a second channel 23, the first channel 22 is provided with a first exhaust fan 221, the second channel 23 is provided with a second exhaust fan 231, the first exhaust fan 221 and the second exhaust fan 231 are opposite in orientation, and one side of the fixing frame 1 near the extending column 2 is provided with a wind guide protrusion 13.
In the invention, the extending column 2 is connected to the fixing frame 1, the rotating rod 11 on the fixing frame 1 extends into the central shaft hole 21 of the extending column 2, the driving machine 12 arranged on the fixing frame 1 drives the rotating rod 11 to rotate around the axis of the rotating rod 11, so as to drive the extending column 2 to rotate around the axis of the extending column 2, the first channel 22 and the second channel 23 on the extending column 2 are respectively provided with a first exhaust fan 221 and a second exhaust fan 231 which are opposite in direction, when the first exhaust fan 221 and the second exhaust fan 231 are opened, one supplies air in the direction far away from the fixing frame 1, one supplies air in the direction close to the fixing frame 1, extracts air in the side far away from the fixing frame 1 and injects fresh air, one side of the fixing frame 1 near the extending column 2 is provided with a wind guide bulge 13, which is convenient for smooth air circulation in the first channel 22 and the second channel 23, generally speaking, can install in the current wind channel of theater building or other pipelines, that is to say will stretch out post 2 from the outside and stretch into in the pipeline, carry out convulsions air supply to the space of stretching out 2 tip of post, accomplish air cycle, also can directly punch on the theater wall, then will stretch out post 2 and pass this through-hole, accomplish the air cycle of wall both sides.
Firstly, the structure of the extending column 2 is provided, a first channel 22 and a second channel 23 are arranged on the extending column 2, a first exhaust fan 221 is arranged in the first channel 22, a second exhaust fan 231 is arranged in the second channel 23, the orientation of the first exhaust fan 221 is opposite to that of the second exhaust fan 231, and the first channel 22 and the second channel 23 can simultaneously supply air in opposite directions for the two ends of the extending column 2 to complete the air circulation of the spaces at the two ends of the extending column 2. The number of the first suction fan 221 and the second suction fan 231 is at least one. Thus, the exhaust fans work simultaneously, and the air supply efficiency is improved.
Then be the connection and the work of stretching out post 2, it is provided with central shaft hole 21 to stretch out post 2, be provided with dwang 11 on the mount 1 and be used for the drive dwang 11 pivoted driving machine 12, dwang 11 has at least a part to be located in central shaft hole 21, the dwang 11 of mount 1 stretches into and passes the central shaft hole 21 that stretches out post 2, and the external diameter of dwang 11 equals the internal diameter of central shaft hole 21, it can fixed connection to mount 1 to stretch out post 2 like this, and the rotation that stretches out post 2 when dwang 11 rotates is more stable. The axis of the rotating rod 11 is coaxial with the axis of the central shaft hole 21, so that the rotation of the extending column 2 does not cause polarization damage, and the service life of the extending column 2 is longer.
The first exhaust fan 221 and the second exhaust fan 231 which are arranged in the first channel 22 and the second channel 23 in the extending column 2 in opposite directions work to exchange air, and the driving machine 12 is started to drive the extending column 2 to rotate, so that the air flowing at the end part of the extending column 2 far away from the fixing frame 1 can be effectively stirred, and the air exchange range is larger.
And the fixed frame 1 is provided with an air guide bulge 13 at one side close to the extending 2 columns. At least one part of the air guide bulge 13 is arc-shaped, and actually the air guide bulge 13 forms an arc-shaped inclined plane, so that air in a channel for supplying air to the direction close to the fixing frame 1 is effectively prevented from directly colliding with the fixing frame 1, the output air is rapidly guided away, and meanwhile, the air around the fixing frame 1 is guided and conducted to the channel for supplying air to the direction far away from the fixing frame 1.
In the invention, holes can be directly drilled on the wall, then the extending columns 2 pass through the wall holes, the fixing frame 1 is fixed on the original stage or theater wall to realize the air exchange on two sides of the wall, the fixing frame can also be installed on the existing waste water pipes, ventilation pipes or even wall gaps, and the air circulation at two ends can be completed only by ensuring that gaps for air to pass are reserved between the fixing frame 1 and the external wall.
Even can accomplish the air exchange in two relatively independent spaces, for example punch on the wall between two rooms of good care, accomplish the air exchange after finishing, avoid wherein certain space can't take a breath for a long time and cause harmful substance to gather.
The stage frame with the air circulation function is simple in structure, convenient to install and maintain, capable of being directly installed on an existing air duct of a theater, capable of being installed through punching at present and good in air supply effect.
Second embodiment, as shown in fig. 1 to 4, is only one embodiment of the present invention, and in order to make the air supply effect of the stage frame with air circulation of the present invention better and the stability degree higher, the present invention further has the following design:
first, the number of the projecting pillars 2 is at least one. A plurality of projecting columns 2 can be arranged in parallel on a fixed frame 1, each projecting column 2 is provided with an individually controlled driving machine 12, and each projecting column 2 rotates individually. Also can be a plurality of posts 2 that stretch out (as shown in fig. 2) that are connected with end to end in proper order on a dwang 11, increase the distance that stretches out post 2, avoid stretching out that post 2 length can't stretch into to the place that needs take a breath inadequately.
Of course, when the plurality of protruding columns 2 on one rotating rod 11 are installed, the alignment of the first channel 22 and the second channel 23 needs to be ensured, the first channels 22 of the plurality of protruding columns 2 are communicated, the second channels 23 of the plurality of protruding columns 2 are communicated, and the more the number of the protruding columns 2 is, the slower the rotating speed of the driving machine 12 is, and the stability of the protruding columns 2 in rotation is maintained.
The end of the fixing frame 1 is provided with a dust screen 15 extending in the direction of the extending column 2. The dust-proof device is used for preventing dust on the outer side of the fixing frame 1 from entering the channel in the extending column 2 and the exhaust fan in the channel, and preventing the exhaust fan from entering the dust.
Then, the fixing legs 14 for fixing the fixing frame 1 are arranged on the side portion of the fixing frame 1, and fixing bolts for fixing the fixing legs 14 are arranged on the fixing legs 14. The fixing leg 14 extends in a direction approaching the projecting column 2. The length of the fixed foot 14 is larger than that of the dust screen 15, the number of the fixed foot 14 is at least one, and the fixing effect of the fixed feet 14 is better.
And a limiting block 111 for limiting the position of the extending column 2 is arranged on the rotating rod 11. The restriction stretches out the position of post 2, avoids during operation to stretch out post 2 and takes place the displacement along the axis direction of dwang 11, leads to stretching out post 2 and damages.
Of course, the number of the limiting blocks 111 is at least two, and the limiting blocks 111 should be arranged at both ends of the extending column 2.
Moreover, a stop block 111 at one end of the rotating rod 11 far away from the fixed frame 1 is provided with a movable blade 112. The air stirring capacity of stirring one side of the extending column 2 far away from the fixed frame 1 is increased, and the air circulation range is accelerated to be enlarged.
Finally, the number of the first channel 22 and the second channel 23 is at least one, that is, a protruding column 2 can be provided with a plurality of groups of first channels 22 and second channels 23, as shown in fig. 4, air circulation exchange at two ends of the protruding column 2 can be completed only by the existence of at least one first channel 22 and at least one second channel 23.
The stage frame with the air circulation function is simple in structure, convenient to install and maintain, capable of being directly installed on an existing air duct of a theater, capable of being installed through punching at present and good in air supply effect.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a take air cycle's stage frame which characterized in that: including mount (1) and stretch out post (2), it is provided with central shaft hole (21) to stretch out post (2), be provided with dwang (11) on mount (1) and be used for the drive dwang (11) pivoted driver (12), dwang (11) have at least a part to be located in central shaft hole (21), it is provided with first passageway (22) and second passageway (23) on post (2) to stretch out, be provided with first air exhauster (221) in first passageway (22), be provided with second air exhauster (231) in second passageway (23), first air exhauster (221) with the orientation of second air exhauster (231) is opposite, mount (1) is close to the one side of stretching out post (2) is provided with wind-guiding arch (13).
2. A stage frame with air circulation according to claim 1, wherein: the edge of the fixing frame (1) is provided with a fixing foot (14) for fixing the fixing frame (1).
3. A stage frame with air circulation according to claim 1, wherein: the end part of the fixing frame (1) is provided with a dust screen (15) extending towards the extending column (2).
4. A stage frame with air circulation according to claim 1, wherein: the number of the extending columns (2) is at least one.
5. A stage frame with air circulation according to claim 4, wherein: and a limiting block (111) used for limiting the position of the extending column (2) is arranged on the rotating rod (11).
6. A stage frame with air circulation according to claim 5, wherein: the number of the limiting blocks (111) is at least two.
7. A stage frame with air circulation according to claim 6, wherein: the limiting block (111) at one end of the rotating rod (11) far away from the fixing frame (1) is provided with a movable blade (112).
8. A stage frame with air circulation according to claim 1, wherein: the number of the first exhaust fans (221) and the number of the second exhaust fans (231) are respectively at least one.
9. A stage frame with air circulation according to claim 1, wherein: the number of the first channel (22) and the second channel (23) is at least one.
10. A stage frame with air circulation according to claim 1, wherein: at least one part of the wind guide bulge (13) is arc-shaped.
CN201911126812.XA 2019-11-18 2019-11-18 Stage frame with air circulation Pending CN110878977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911126812.XA CN110878977A (en) 2019-11-18 2019-11-18 Stage frame with air circulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911126812.XA CN110878977A (en) 2019-11-18 2019-11-18 Stage frame with air circulation

Publications (1)

Publication Number Publication Date
CN110878977A true CN110878977A (en) 2020-03-13

Family

ID=69730459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911126812.XA Pending CN110878977A (en) 2019-11-18 2019-11-18 Stage frame with air circulation

Country Status (1)

Country Link
CN (1) CN110878977A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046389A (en) * 1998-07-28 2000-02-18 Nippon Eisei Center:Kk Air agitator
KR20100122837A (en) * 2009-05-13 2010-11-23 조철휘 Air conditioning ventilation implement
EP2397784A1 (en) * 2010-06-21 2011-12-21 Cmp Impianti S.R.L. Device for Ventilating a Room
JP2012013389A (en) * 2010-07-05 2012-01-19 Mitsubishi Electric Corp Circulator, and circulator system
CN104456882A (en) * 2014-10-31 2015-03-25 广东美的制冷设备有限公司 Air duct system, air supply method thereof and fan and air conditioner with air duct system
CN204534966U (en) * 2015-03-26 2015-08-05 安徽悦达环保科技有限公司 A kind of cabin ventilator
CA2886150A1 (en) * 2014-03-28 2015-09-28 Shop Vac Corporation Axial flow air circulator
CN205351524U (en) * 2016-01-19 2016-06-29 伯瑞(北京)室内环境科技有限公司 Pipeline formula runner heat exchanger and use its wall -hanging new fan
CN205678853U (en) * 2016-06-13 2016-11-09 董潇儒 A kind of pressure changeable device of process chamber internal contamination air
CN208817646U (en) * 2018-07-26 2019-05-03 孙桂龙 A kind of communication machine room intelligent fresh air air interchanger
CN109723484A (en) * 2018-12-25 2019-05-07 长安大学 A kind of closed pressure combination ventilating system in drill bursting construction tunnel and method of ventilation
CN211233231U (en) * 2019-11-18 2020-08-11 杭州友邦演艺设备有限公司 Stage frame with air circulation

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046389A (en) * 1998-07-28 2000-02-18 Nippon Eisei Center:Kk Air agitator
KR20100122837A (en) * 2009-05-13 2010-11-23 조철휘 Air conditioning ventilation implement
EP2397784A1 (en) * 2010-06-21 2011-12-21 Cmp Impianti S.R.L. Device for Ventilating a Room
JP2012013389A (en) * 2010-07-05 2012-01-19 Mitsubishi Electric Corp Circulator, and circulator system
CA2886150A1 (en) * 2014-03-28 2015-09-28 Shop Vac Corporation Axial flow air circulator
CN104456882A (en) * 2014-10-31 2015-03-25 广东美的制冷设备有限公司 Air duct system, air supply method thereof and fan and air conditioner with air duct system
CN204534966U (en) * 2015-03-26 2015-08-05 安徽悦达环保科技有限公司 A kind of cabin ventilator
CN205351524U (en) * 2016-01-19 2016-06-29 伯瑞(北京)室内环境科技有限公司 Pipeline formula runner heat exchanger and use its wall -hanging new fan
CN205678853U (en) * 2016-06-13 2016-11-09 董潇儒 A kind of pressure changeable device of process chamber internal contamination air
CN208817646U (en) * 2018-07-26 2019-05-03 孙桂龙 A kind of communication machine room intelligent fresh air air interchanger
CN109723484A (en) * 2018-12-25 2019-05-07 长安大学 A kind of closed pressure combination ventilating system in drill bursting construction tunnel and method of ventilation
CN211233231U (en) * 2019-11-18 2020-08-11 杭州友邦演艺设备有限公司 Stage frame with air circulation

Similar Documents

Publication Publication Date Title
CN211233231U (en) Stage frame with air circulation
CN102797405B (en) Ventilating and sound insulating secondary frame sectional material
WO2022000787A1 (en) Multifunctional comprehensive environmental test box capable of conveniently switching functions
CN110878977A (en) Stage frame with air circulation
US20040137837A1 (en) Ventilation system for underground structure
CN104949313B (en) A kind of noise elimination rod structure of silencer
CN201992758U (en) Ventilating device
CN204001859U (en) The performance venue of the anti-arc wall construction of intelligence wind system
KR200458580Y1 (en) district-unit ventilation equipment using motorized diffusers each of which integrates a damper and a diffuser
CN102912966A (en) Sealing method applicable to underfloor air conditioning system and floor integrated device
CN110318458B (en) Board house for building construction and installation method
CN207094964U (en) Electronic type strong wind type wind swirl diffuser
CN211739403U (en) Building ventilation duct based on venturi effect
KR102052838B1 (en) Window type ventilation induction device
CN216481414U (en) Arrangement structure of combined building smoke exhaust machine room at entrance and exit of subway station
CN217817052U (en) Mute ventilation device for subway channel
CN214886121U (en) Noise-isolating breast board for construction environment improvement of building engineering
CN208968005U (en) A kind of air-valve mounting structure and ducting assembly
CN220928170U (en) Window auxiliary device and residential building
US20140259977A1 (en) Sustainable Building System
CN218001749U (en) Assembled furred ceiling ventilation pipe
CN114963382A (en) Green building ventilation unit
CN116505415B (en) Modular movable box-type substation
CN213711420U (en) Large-scale industrial fan flabellum seat
CN113202262B (en) Ventilation unit of underground substation

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination