CN112983861A - Jet fan installation and maintenance support under property development vehicle base lid - Google Patents
Jet fan installation and maintenance support under property development vehicle base lid Download PDFInfo
- Publication number
- CN112983861A CN112983861A CN202110096034.5A CN202110096034A CN112983861A CN 112983861 A CN112983861 A CN 112983861A CN 202110096034 A CN202110096034 A CN 202110096034A CN 112983861 A CN112983861 A CN 112983861A
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- CN
- China
- Prior art keywords
- jet fan
- fixed
- maintenance
- property development
- installation
- 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.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 58
- 238000009434 installation Methods 0.000 title claims abstract description 35
- 230000035939 shock Effects 0.000 claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a jet fan installation and maintenance support under a base cover of a property development vehicle, which comprises a maintenance platform, a support suspender and a fixing frame; the support suspenders are arranged in two rows, the bottoms of the support suspenders are fixed at the edge of the maintenance platform, and the tops of the support suspenders are fixed on the cover plate, so that the maintenance platform is divided into an installation area and a maintenance area; a horizontal fixing frame is arranged between the supporting hanging rods of the mounting area, the jet fan is located in the mounting area, the bottom of the jet fan is fixed on a mounting seat shock absorber arranged on the maintenance platform, and the top of the jet fan is fixed on the fixing frame. The invention effectively reduces the influence of the vibration of the fan during operation on the property development of the upper cover and improves the property development quality; by adopting the assembly installation mode, welding is not needed on site, the fire hazard is reduced, the operation is convenient and fast, and the adaptability is strong. Can better meet the requirements of installation and maintenance of the smoke-discharging jet fan under the base cover of the property development vehicle.
Description
Technical Field
The invention relates to the technical field of urban rail transit safety protection, in particular to a jet fan installation and maintenance support under a base cover of a property development vehicle.
Background
The vehicle base is an important base for providing powerful guarantee for operation management, servicing maintenance, overhaul and rescue, and the occupied area of the vehicle base is generally large. With the increasing shortage of land resources of various cities in China, more and more cities begin to develop the property of subway vehicle bases so as to improve the comprehensive utilization rate and the economic value of the land. The design of the upper cover property development subway vehicle section is complex and difficult, and the height design of the first-layer cover plate is restricted by economy and rationality, so that the net height under the cover cannot be too high, and the arrangement and installation of the suspension pipelines and equipment under the cover are difficult. Especially, the suspension position of the jet fan used for fire fighting is not only influenced by the smoke discharge distance, but also limited by a contact net and the driving safety.
The efflux fan is as covering important fire protection fume extractor down, and its mounted position both will satisfy the needs that the axial wind current discharged, will satisfy installation safe and reliable again, avoids contact net and track certain distance, guarantees that any condition does not produce the safe influence to the train operation of operation, need consider convenience and operating personnel's security when the fan overhauls the maintenance, also need consider simultaneously to reduce the influence of fan operation vibration to upper cover development quality.
Disclosure of Invention
The invention aims to provide a support for installing and overhauling a jet fan under a base cover of a property development vehicle, which solves the problem of installation safety of the jet fan under the base cover of the property development vehicle, solves the problem of difficulty in later maintenance of the jet fan and improves the personal safety guarantee of operators.
The technical scheme adopted by the invention is as follows:
support is overhauld in the installation of efflux fan under property development vehicle base lid, its characterized in that:
the support comprises an overhauling platform, a supporting suspender and a fixed frame;
the support suspenders are arranged in two rows, the bottoms of the support suspenders are fixed at the edge of the maintenance platform, and the tops of the support suspenders are fixed on the cover plate, so that the maintenance platform is divided into an installation area and a maintenance area;
a horizontal fixing frame is arranged between the supporting hanging rods of the mounting area, the jet fan is located in the mounting area, the bottom of the jet fan is fixed on a mounting seat shock absorber arranged on the maintenance platform, and the top of the jet fan is fixed on the fixing frame.
The maintenance platform comprises a rectangular frame and longitudinal partition beams in the rectangular frame, and the support hanging rods are arranged at four corners of the rectangular frame and two ends of each partition beam.
The maintenance platform in the mounting area is provided with a transverse supporting beam, and the mounting seat shock absorber is positioned on the supporting beam.
The maintenance platform in the maintenance area is provided with a longitudinal supporting beam, and a maintenance plate is laid above the longitudinal supporting beam.
A horizontal stabilizing beam is arranged between the supporting hanging rods above the fixing frame.
The fixed frame is fixed on the supporting suspension rod through the component shock absorber;
the supporting suspender is divided into an upper supporting suspender and a lower supporting suspender, the end part is provided with an end plate, the end part of the fixing frame is inserted between the upper supporting suspender and the lower supporting suspender, and the component shock absorber is positioned between the lower part of the end part of the fixing frame and the top end of the lower supporting suspender and is fixedly connected with the top end of the lower supporting suspender through bolts.
The component shock absorber comprises an upper connecting plate and a lower connecting plate, and bolt holes for connection are formed in the edges of the connecting plate and the lower connecting plate;
a cylinder body is arranged between the upper connecting plate and the lower connecting plate, the cylinder body is provided with a bottom plate, and an elastic sealing rubber ring is arranged between the bottom plate and the lower connecting plate; elastic washers and high-strength damping rubber are arranged in the cylinder body at intervals from top to bottom.
The bottom plate of the cylinder is provided with a hole, the top surface of the lower connecting plate is provided with a middle shaft column, the middle shaft column is inserted into the cylinder and upwards penetrates through the elastic gasket and the high-strength damping rubber, the top of the middle shaft column is provided with a middle partition plate, and a top cavity is formed between the middle partition plate and the upper connecting plate.
The side of the maintenance platform in the maintenance area is provided with a safety door and a guardrail.
The platform further comprises a stay cable, the top end of the stay cable is fixed on the cover plate, and the bottom end of the stay cable is fixed at the front end and the rear end of the jet fan.
The invention has the following advantages:
the invention effectively solves the problems of difficult installation and safety of the smoke exhaust jet fan under the base cover of the property development vehicle, solves the problems of difficult maintenance and the like of the jet fan in the later period, improves personal safety guarantee of personnel during maintenance operation, effectively reduces the influence of vibration on property development of the upper cover during operation of the fan, and improves the property development quality.
The invention adopts the assembly installation mode, does not need welding on site, reduces the fire hazard, is convenient to operate and has stronger adaptability. Can better meet the requirements of installation and maintenance of the smoke-discharging jet fan under the base cover of the property development vehicle.
Drawings
FIG. 1 is a front view of the structure of the device of the present invention.
Fig. 2 is a left side view of the structure of the device of the present invention.
Fig. 3 is a large drawing of the maintenance platform and the installation base.
FIG. 4 is a schematic view of a component damper.
The labels in the figure are:
1-supporting hanger rods, 2-fixing frames, 3-component dampers, 4-stabilizing beams, 5-mounting seat dampers, 6-safety doors and guardrails, 7-stay cables, 8-maintenance platforms, 9-supporting beams and 10-safety belt hanger beams;
31-upper connecting plate, 32-lower connecting plate, 33-elastic gasket, 34-high-strength damping rubber and 35-elastic sealing rubber ring.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to a mounting and overhauling support for a jet fan under a base cover of a property development vehicle, which comprises an overhauling platform 8, a supporting suspender 1 and a fixing frame 2; the number of the support suspenders 1 is six, the support suspenders are arranged in two rows, the bottoms of the support suspenders are fixed at the edge of the maintenance platform 8, the tops of the support suspenders are fixed on a cover plate, and the maintenance platform 8 is divided into an installation area and a maintenance area; a horizontal fixing frame 2 is arranged between the supporting hanging rods 1 of the mounting area, the jet fan is located in the mounting area, the bottom of the jet fan is fixed on a mounting seat shock absorber 5 arranged on an overhauling platform 8, and the top of the jet fan is fixed on the fixing frame 2. The maintenance platform 8 comprises a rectangular frame and longitudinal partition beams in the rectangular frame, and the support hanging rods 1 are arranged at four corners of the rectangular frame and two ends of each partition beam.
The fixed mount 2 is fixed to the support boom 1 through the member damper 3; the supporting suspender 1 is divided into an upper supporting suspender and a lower supporting suspender, the end parts of the upper supporting suspender and the lower supporting suspender are provided with end plates, the end parts of the fixing frame 2 are inserted between the upper supporting suspender and the lower supporting suspender, and the component shock absorber 3 is positioned between the lower part of the end part of the fixing frame 2 and the top end of the lower supporting suspender and is fixedly connected with the top end of the lower supporting suspender through bolts.
The component damper 3 comprises an upper connecting plate 31 and a lower connecting plate 32, and bolt holes for connection are arranged at the edges of the connecting plate 31 and the lower connecting plate 32; a cylinder body is arranged between the upper connecting plate 31 and the lower connecting plate 32, the cylinder body is provided with a bottom plate, and an elastic sealing rubber ring 35 is arranged between the bottom plate and the lower connecting plate 32; elastic washers 33 and high-strength damping rubber 35 are arranged in the cylinder body at intervals from top to bottom. The bottom plate of the cylinder is provided with a hole, the top surface of the lower connecting plate 32 is provided with a middle shaft column, the middle shaft column is inserted into the cylinder and upwards penetrates through the elastic gasket 33 and the high-strength damping rubber 35, the top of the middle shaft column is provided with a middle partition plate, and a top cavity is formed between the middle partition plate and the upper connecting plate 31.
The maintenance platform 8 in the installation area is provided with a transverse supporting beam 9, and the installation seat shock absorber 5 is positioned on the supporting beam 9. The maintenance platform 8 in the maintenance area is provided with a longitudinal supporting beam, and a maintenance plate is laid above the longitudinal supporting beam. The mount pad shock absorption 5 is composed of high-strength elastic rubber stacking blocks.
A horizontal stabilizing beam 4 is also arranged between the supporting hanging rods 1 above the fixed frame 2.
The side of the maintenance platform 8 in the maintenance area is provided with a safety door and a guardrail 6.
The platform further comprises a stay cable 7, the top end of the stay cable 7 is fixed on the cover plate, and the bottom end of the stay cable is fixed at the front end and the rear end of the jet fan.
The support suspender 1 of the maintenance area is also provided with a safety belt hanging beam 10.
The invention is explained in further detail with reference to the drawings in which:
the utility model relates to a device for installing and maintaining a jet fan under a base cover of a property development vehicle, which comprises a fixed frame 2 and a maintenance platform 8; the fixed frame 2 and the maintenance platform 8 are both braced through the support suspender 1.
The fixed frame 2 comprises a mounting seat shock absorber 5, a supporting beam 9 and a stay cable 7; the mounting seat shock absorption 5 is fixed on the supporting beam 9 through bolts, is used for mounting and fixing the jet fan and is used for absorbing the vibration generated when the fan operates; the jet fan is suspended in the suspension of the stay cable 7, one end of the stay cable is fixed on the jet fan through a hanging ring, and the other end of the stay cable is fixed on a cover plate or a beam through a chemical anchor bolt, so that a secondary protection effect is achieved.
The component shock absorber 3 is connected with the fixing frame 2 and the supporting suspender 1 through bolts, not only plays a role in connection, but also can effectively absorb vibration generated when the jet fan machine operates, avoids influencing a chemical anchor bolt for fixing the supporting suspender 1, and also effectively reduces the influence of vibration on the development of upper cover property when the fan operates.
The stabilizing beam 4 is fixedly connected with the support suspender 1 through a bolt and is used for stabilizing the support suspender 1 and resisting unbalanced force in the horizontal direction generated by the operation of the jet flow fan.
The maintenance platform 8 comprises a safety door and guardrail 6, a supporting beam 9 and a safety belt hanging beam 10, wherein the supporting beam 9 is fixed with the supporting hanging rod 1 through a bolt and is used for bearing the weight of maintenance personnel; the safety door and the guardrail 6 and the safety belt hanging beam 10 are fixed with the support hanging rod 1 and the supporting beam 9 through bolts, and play a role of safety protection for maintenance personnel. The bearing capacity of the maintenance platform meets the requirement that the load is not less than 0.3 t.
The support boom 1 is fixed to a structural plate or beam under the cover plate by anchor bolts to support the entire apparatus and the weight of the person. The chemical anchor bolt adopts the specification of M12 or above and has the length of no less than 160 mm.
The device is arranged close to a pillar or a wall, the distance from the device to the pillar or the wall is not more than 400mm, contact nets and the upper part of a track are avoided, and fine adjustment can be carried out according to the situation of an installation site. The integration of jet fan installation and maintenance under the property development vehicle base lid has been realized, has effectively solved the difficulty of jet fan installation under the property development vehicle base lid, and the difficult scheduling problem is maintained to later stage jet fan, has ensured personnel's personal safety when overhauing the operation, has effectively reduced the fan operation and has produced the influence of vibration to upper cover property development quality, has improved humanized design. The assembly mounting mode is adopted, welding is not needed on site, the fire hazard is reduced, the operation is convenient, and the adaptability is strong.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (10)
1. Support is overhauld in the installation of efflux fan under property development vehicle base lid, its characterized in that:
the support comprises an overhauling platform (8), a supporting suspender (1) and a fixed frame (2);
the support suspenders (1) are divided into two rows, the bottoms of the suspenders are fixed on the edge of the maintenance platform (8), and the tops of the suspenders are fixed on the cover plate, so that the maintenance platform (8) is divided into an installation area and a maintenance area;
a horizontal fixing frame (2) is arranged between the supporting hanging rods (1) of the mounting area, the jet fan is located in the mounting area, the bottom of the jet fan is fixed on a mounting seat shock absorber (5) arranged on the maintenance platform (8), and the top of the jet fan is fixed on the fixing frame (2).
2. The property development vehicle base under-hood jet fan installation and service bracket of claim 1, wherein:
the maintenance platform (8) comprises a rectangular frame and longitudinal partition beams in the rectangular frame, and the support hanging rods (1) are arranged at four corners of the rectangular frame and two ends of the partition beams.
3. The property development vehicle base under-hood jet fan installation and service bracket of claim 2, wherein:
a maintenance platform (8) in the installation area is provided with a transverse supporting beam (9), and the installation seat shock absorber (5) is positioned on the supporting beam (9).
4. The property development vehicle base under-hood jet fan installation and service rack of claim 3, wherein:
the maintenance platform (8) in the maintenance area is provided with a longitudinal supporting beam, and a maintenance plate is laid above the longitudinal supporting beam.
5. The property development vehicle base under-hood jet fan installation and service rack of claim 4, wherein:
a horizontal stabilizing beam (4) is arranged between the supporting hanging rods (1) above the fixed frame (2).
6. The property development vehicle base under-hood jet fan installation and service rack of claim 5, wherein:
the fixed mount (2) is fixed on the support suspender (1) through the component damper (3);
the support suspender (1) is divided into an upper support suspender and a lower support suspender, the end parts of the upper support suspender and the lower support suspender are provided with end plates, the end part of the fixing frame (2) is inserted between the upper support suspender and the lower support suspender, and the component damper (3) is positioned between the lower part of the end part of the fixing frame (2) and the top end of the lower support suspender and is fixedly connected with the upper support suspender through bolts.
7. The property development vehicle base under-hood jet fan installation and service rack of claim 6, wherein:
the component shock absorber (3) comprises an upper connecting plate (31) and a lower connecting plate (32), and bolt holes for connection are formed in the edges of the connecting plate (31) and the lower connecting plate (32);
a cylinder body is arranged between the upper connecting plate (31) and the lower connecting plate (32), the cylinder body is provided with a bottom plate, and an elastic sealing rubber ring (35) is arranged between the bottom plate and the lower connecting plate (32); elastic washers (33) and high-strength damping rubber (35) are arranged in the cylinder body at intervals from top to bottom.
8. The property development vehicle base under-hood jet fan installation and service rack of claim 7, wherein:
the bottom plate of the cylinder is provided with a hole, the top surface of the lower connecting plate (32) is provided with a middle shaft column, the middle shaft column is inserted into the cylinder and upwards penetrates through the elastic gasket (33) and the high-strength damping rubber (35), the top of the middle shaft column is provided with a middle partition plate, and a top cavity is formed between the middle partition plate and the upper connecting plate (31).
9. The property development vehicle base under-hood jet fan installation and service rack of claim 8, wherein:
the side surface of the maintenance platform (8) of the maintenance area is provided with a safety door and a guardrail (6).
10. The property development vehicle base under-hood jet fan installation and service rack of claim 9, wherein:
the platform further comprises a stay cable (7), the top end of the stay cable (7) is fixed on the cover plate, and the bottom end of the stay cable is fixed at the front end and the rear end of the jet fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096034.5A CN112983861B (en) | 2021-01-25 | 2021-01-25 | Jet fan installation and maintenance support under property development vehicle base lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096034.5A CN112983861B (en) | 2021-01-25 | 2021-01-25 | Jet fan installation and maintenance support under property development vehicle base lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112983861A true CN112983861A (en) | 2021-06-18 |
| CN112983861B CN112983861B (en) | 2023-01-31 |
Family
ID=76344743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110096034.5A Active CN112983861B (en) | 2021-01-25 | 2021-01-25 | Jet fan installation and maintenance support under property development vehicle base lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983861B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04125135U (en) * | 1991-04-19 | 1992-11-16 | 日晴金属株式会社 | Hanging air conditioner fixture |
| CN103726863A (en) * | 2013-12-19 | 2014-04-16 | 张家港市众鑫风机有限公司 | Jet fan for tunnel |
| CN203627642U (en) * | 2013-11-18 | 2014-06-04 | 广州国灵空调有限公司 | Fan hanging and damping device |
| CN208010452U (en) * | 2018-03-30 | 2018-10-26 | 东莞市能达机电设备有限公司 | Generator smoke exhaust silencer |
| CN210860386U (en) * | 2019-10-29 | 2020-06-26 | 广州绿匠科技有限公司 | Lateral and longitudinal anti-seismic supporting device for fan equipment |
| CN211500701U (en) * | 2019-12-24 | 2020-09-15 | 山西省交通科技研发有限公司 | Long and large highway tunnel efflux fan installing support |
-
2021
- 2021-01-25 CN CN202110096034.5A patent/CN112983861B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04125135U (en) * | 1991-04-19 | 1992-11-16 | 日晴金属株式会社 | Hanging air conditioner fixture |
| CN203627642U (en) * | 2013-11-18 | 2014-06-04 | 广州国灵空调有限公司 | Fan hanging and damping device |
| CN103726863A (en) * | 2013-12-19 | 2014-04-16 | 张家港市众鑫风机有限公司 | Jet fan for tunnel |
| CN208010452U (en) * | 2018-03-30 | 2018-10-26 | 东莞市能达机电设备有限公司 | Generator smoke exhaust silencer |
| CN210860386U (en) * | 2019-10-29 | 2020-06-26 | 广州绿匠科技有限公司 | Lateral and longitudinal anti-seismic supporting device for fan equipment |
| CN211500701U (en) * | 2019-12-24 | 2020-09-15 | 山西省交通科技研发有限公司 | Long and large highway tunnel efflux fan installing support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112983861B (en) | 2023-01-31 |
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