CN109138810A - A kind of telescopic roller shutter for exempting from punching installation - Google Patents
A kind of telescopic roller shutter for exempting from punching installation Download PDFInfo
- Publication number
- CN109138810A CN109138810A CN201811047285.9A CN201811047285A CN109138810A CN 109138810 A CN109138810 A CN 109138810A CN 201811047285 A CN201811047285 A CN 201811047285A CN 109138810 A CN109138810 A CN 109138810A
- Authority
- CN
- China
- Prior art keywords
- outer barrel
- telescoping tube
- roller shutter
- fixedly connected
- exempting
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
- E06B9/44—Rollers therefor; Fastening roller blinds to rollers
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B2009/402—Roller blinds adjustable without the use of tools or cutting instruments
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B2009/407—Telescopic roller
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention belongs to curtain technical fields, more particularly, to a kind of telescopic roller shutter for exempting from punching installation, including scalable pipe crimping main body, the scalable pipe crimping main body includes outer barrel, the outer barrel inner sleeve is equipped with telescoping tube, the telescoping tube is fixedly connected by telescoping mechanism with outer barrel, described telescoping tube one end extends to outside outer barrel and is arranged with supporting sleeve, the position-limit mechanism to telescoping tube is equipped on the outer barrel and supporting sleeve, the described one end of outer barrel far from supporting sleeve is fixedly connected by bearing part with chain operating roller blinds clutch, the one end of the telescoping tube far from outer barrel is fixedly connected by bearing part with bead roller shutter tail, anti-skidding silicagel pad is fixedly connected on the end face that the chain operating roller blinds clutch and bead roller shutter tail mutually deviate from.Advantage is: structure of the invention is reasonable, can be easily installed and dismantle, unlimited wall, shorten disassembly and assembly time, the enhancing roller shutter width scope of application.
Description
Technical field
The invention belongs to curtain technical fields, more particularly, to a kind of telescopic roller shutter for exempting from punching installation.
Background technique
Existing roller shutter is fixed on the wall of window edge two sides by screw, and this kind of roller shutter fixed form is complicated, is needed
It using additional tool operation, and needs to punch on the wall, destroys metope.And different walls need different punching erectors
Tool, installation is complicated cumbersome, is not easy to dismantle after installation, and can not be according to the length of the width adjustment roller shutter both ends fixed point of window
Degree.When roller shutter length is greater than the width of window, roller shutter can not be installed between the wall of window two sides.When roller shutter length is less than window
When the width at family, two sections of roller shutter can not be fitted on the wall of window two sides and be fixed.
For this purpose, it is proposed that a kind of exempt from the telescopic roller shutter that punching is installed to solve the above problems.
Summary of the invention
Regarding the issue above, the present invention provides one kind can be easily installed and dismantle, unlimited wall, shorten and tear open
ETL estimated time of loading, can be according to the distance between width adjusting roller shutter two sides fixed point of window, the enhancing roller shutter width scope of application
Roller shutter.
In order to achieve the above objectives, present invention employs following technical proposals: a kind of telescopic roller shutter for exempting from punching installation, including
Scalable pipe crimping main body, the scalable pipe crimping main body includes outer barrel, and the outer barrel inner sleeve is equipped with telescoping tube, described flexible
Pipe is fixedly connected by telescoping mechanism with outer barrel, and described telescoping tube one end extends to outside outer barrel and be arranged with supporting sleeve,
The position-limit mechanism to telescoping tube is equipped on the outer barrel and supporting sleeve, the one end of the outer barrel far from supporting sleeve is logical
It crosses bearing part to be fixedly connected with chain operating roller blinds clutch, the one end of the telescoping tube far from outer barrel passes through bearing part and bead roller shutter
Tail processed is fixedly connected, and is fixedly connected to anti-skidding silicon on the end face that the chain operating roller blinds clutch and bead roller shutter tail mutually deviate from
Rubber mat.
In the above-mentioned telescopic roller shutter for exempting from punching installation, the telescoping mechanism includes the interior spiral shell being arranged in outer barrel
Mother, the inner nut are fixedly connected with outer barrel, and horizontal in the outer barrel to be equipped with threaded rod, described threaded rod one end extends to
In telescoping tube, the inner nut screw thread is socketed on threaded rod, and screw thread is socketed with telescoping tube screw lid on the threaded rod, described
Telescoping tube screw lid is fixed with telescoping tube one end and is clamped, and uniformly distributed in the outer barrel there are four the first reinforcing ribs, described first to add
Strengthening tendons are fixedly connected with outer groove inside pipe wall, and the flexible pipe outer wall is equipped with and matched first fluting of the first reinforcing rib.
In the above-mentioned telescopic roller shutter for exempting from punching installation, the position-limit mechanism includes two envelopes being set on telescoping tube
Lid, two cappings are fixed with outer barrel and supporting sleeve respectively to be clamped, and the curved wall of the capping is equipped with threaded hole,
Capping fixed screw for fixing is equipped in the threaded hole.
In the above-mentioned telescopic roller shutter for exempting from punching installation, it is equipped on the upside of the outer barrel, supporting sleeve and capping
Card slot in asymmetry, it is described asymmetry card slot in be connected with cord.
In the above-mentioned telescopic roller shutter for exempting from punching installation, it is equipped on the downside of the outer barrel, supporting sleeve and capping
Symmetrical card slot is equipped with matched T-type in the symmetrical card slot on the outer barrel and connects slide bar.
In the above-mentioned telescopic roller shutter for exempting from punching installation, it is evenly equipped with that there are four the second reinforcing rib, institutes in the telescoping tube
Telescoping tube screw lid is stated to be equipped with and matched four second flutings of four the second reinforcing ribs.
Compared with prior art, the advantages of originally exempting from the telescopic roller shutter of punching installation is:
1, the present invention carries out scaling operation to telescoping tube by telescoping mechanism by the way that scalable pipe crimping main body is arranged, so as to
Adapt to different window widths, and installation and removal all only need to make scalable pipe crimping main body carry out it is flexible can be completed, ten
Divide convenient and does not need carrying tool.
2, the present invention is not needed using additional tool operation, and does not need to punch on wall again, will not destroy metope, can
To guarantee the completion in house, at the same avoid different walls need different punching installation tools and different installation procedures these
Cumbersome affairs have saved manpower and material resources, the market competitiveness with higher.
3, structure of the invention is integrally reasonable, is convenient for dismantling, thus easy maintenance and replacement component, people are very easily
It can safeguard, long service life that there are good market prospects to the present invention.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram figure of telescopic roller shutter for exempting from punching installation provided by the invention；
Fig. 2 is a kind of present invention looks up structural representation of telescopic roller shutter for exempting from punching installation provided by the invention；
Fig. 3 is a kind of positive structure diagram of telescopic roller shutter for exempting from punching installation provided by the invention；
Fig. 4 is a kind of side block diagram of telescopic roller shutter for exempting from punching installation provided by the invention；
A kind of structural schematic diagram of telescopic roller shutter China and foreign countries barrel that exempting from punching installation provided by the invention when Fig. 5；
Fig. 6 is the structural schematic diagram of telescoping tube in a kind of telescopic roller shutter for exempting from punching installation provided by the invention.
In figure, 1 scalable pipe crimping main body, 2 outer barrels, 3 telescoping tubes, 4 telescoping mechanisms, 5 supporting sleeves, 6 position-limit mechanisms, 7
Bearing part, 8 chain operating roller blinds clutchs, 9 bead roller shutter tails, 10 anti-skidding silicagel pads, 11 inner nuts, 12 threaded rods, 13 telescoping tube spiral shells
Spiral cover, 14 first reinforcing ribs, 15 cappings, 16 capping fixed screws, 17 cords, 18 T-types connect slide bar, 19 second reinforcing ribs.
Specific embodiment
Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.
Embodiment
As shown in figures 1 to 6, a kind of telescopic roller shutter for exempting from punching installation, including scalable pipe crimping main body 1, are integrally stretched
Contracting, to adapt to different window widths, scalable pipe crimping main body 1 includes outer barrel 2, is arranged with telescoping tube 3 in outer barrel 2,
Telescoping tube 3 is fixedly connected by telescoping mechanism 4 with outer barrel 2, and telescoping mechanism 4 includes the inner nut 11 being arranged in outer barrel 2,
Inner nut 11 is fixedly connected with outer barrel 2, and horizontal in outer barrel 2 to be equipped with threaded rod 12,12 one end of threaded rod extends to telescoping tube 3
Interior, 11 screw thread of inner nut is socketed on threaded rod 12, and inner nut 11 fixes the position of threaded rod 12, thread bush on threaded rod 12
It is connected to telescoping tube screw lid 13, the fixed clamping of telescoping tube screw lid 13 and 3 one end of telescoping tube, rotation telescoping tube 3 can to stretch
Draw screw lid 13 rotates, to drive telescoping tube 3 mobile, realizes flexible movement.
It is evenly equipped in telescoping tube 3 there are four the second reinforcing rib 19, telescoping tube screw lid 13 is equipped with to be reinforced with four second
19 matched four second, muscle flutings, the second reinforcing rib 19 help drive telescoping tube 3 rotation of telescoping tube screw lid 13 and increase to stretch
The crushing resistance of the draw 3, it is uniformly distributed there are four the first reinforcing rib 14 in outer barrel 2, the first reinforcing rib 14 with outer 2 inner wall of barrel is fixed connects
It connects, 3 outer wall of telescoping tube, which is equipped with, to be stretched with matched first fluting of the first reinforcing rib 14, four the first reinforcing rib 14 effects for fixation
The draw 3 and the outer barrel 2 of increase crushing resistance, 3 one end of telescoping tube extends to outside outer barrel 2 and is arranged with supporting sleeve 5.
The position-limit mechanism 6 to telescoping tube 3 is equipped on outer barrel 2 and supporting sleeve 5, position-limit mechanism 6 includes being set in stretch
Two cappings 15 on the draw 3, two cappings 15 with outer barrel 2 and the fixed clamping of supporting sleeve 5, cover 15 curved side respectively
Wall is equipped with threaded hole, is equipped with capping fixed screw 16 for fixing in threaded hole, tightens capping fixed screw 16, so as to
With position of the fixed capping 15 on telescoping tube 3, the upside of outer barrel 2, supporting sleeve 5 and capping 15, which is equipped in asymmetry, blocks
Slot is connected with cord 17 in asymmetric card slot, and card slot effect is fixed cord 17 in asymmetry, and 17 fixinig plate of cord can be made from upper
Square oblique cutting enters card slot in asymmetry, cell wall is blocked when retracting to fix, the downside of outer barrel 2, supporting sleeve 5 and capping 15 is equal
It is equipped with matched T-type equipped with symmetrical card slot, in symmetrical card slot on outer barrel 2 and connects slide bar 18, T-type connects slide bar 18 can be
Sliding in symmetrical card slot.
The one end of outer barrel 2 far from supporting sleeve 5 is fixedly connected by bearing part 7 with chain operating roller blinds clutch 8, telescoping tube 3
One end far from outer barrel 2 is fixedly connected by bearing part 7 with bead roller shutter tail 9, chain operating roller blinds clutch 8 and bead roller shutter system
Tail 9 is the prior art, can control cord 17, on the end face that chain operating roller blinds clutch 8 and bead roller shutter tail 9 mutually deviate from
It is fixedly connected with anti-skidding silicagel pad 10, anti-skidding silicagel pad 10 can guarantee that chain operating roller blinds clutch 8 and bead roller shutter tail 9 are supported on wall
It will not be slided on wall, unlimited wall, the not deep convex-concave surface of any force-applied flat surface and amplitude can be acted on.
In the use of the present invention, rotation telescoping tube 3 is first passed through, because the fixation of telescoping tube 3 is connected with telescoping tube screw lid 13,
Telescoping tube screw lid 13 is threadedly coupled with the threaded rod 12 in outer barrel 2, while threaded rod 12 is fixed on outside by inner nut 11
In barrel 2, it can be made flexible to rotate telescoping tube 3, because outer barrel 2 passes through bearing part 7 far from one end of supporting sleeve 5
It is fixedly connected with chain operating roller blinds clutch 8, the one end of telescoping tube 3 far from outer barrel 2 is solid by bearing part 7 and bead roller shutter tail 9
It is fixed to connect, it is fixedly connected to anti-skidding silicagel pad 10 on the end face that chain operating roller blinds clutch 8 and bead roller shutter tail 9 mutually deviate from,
To which two anti-skidding silicagel pads 10 is against on metope, the supporting sleeve 5 being set on telescoping tube 3 is then moved to telescoping tube
3 are arranged there are two capping 15 close to the one end for holding roller shutter tails 9, on telescoping tube 3, two cappings 15 respectively with outer barrel 2 and
The fixed clamping of supporting sleeve 5, the curved wall for covering 15 are equipped with threaded hole, are equipped with capping for fixing in threaded hole and fix
Screw 16, tightening capping fixed screw 16 makes outer barrel, supporting sleeve and telescoping tube form a fixed entirety, then will be outer
In symmetrical card slot on barrel 2 in the mobile a part to the symmetrical card slot on supporting sleeve 5 of T-type connection slide bar 18, by outer barrel 2
It is fixed with the angle of supporting sleeve 5, the fixinig plate of cord 17 is then sticked into outer barrel 2, supporting sleeve 5 and the upside for covering 15
It is equipped in asymmetry in card slot, completes installation, it is only necessary to pull chain operating roller blinds clutch 8 that the scaling of curtain can be completed.
Although scalable pipe crimping main body 1, outer barrel 2, telescoping tube 3, telescoping mechanism 4, support sleeve is used more herein
Pipe 5, position-limit mechanism 6, bearing part 7, chain operating roller blinds clutch 8, bead roller shutter tail 9, anti-skidding silicagel pad 10, inner nut 11, screw thread
Bar 12, telescoping tube screw lid 13, the first reinforcing rib 14, capping 15, capping fixed screw 16, cord 17, T-type connect 18 and of slide bar
The terms such as the second reinforcing rib 19, but it does not exclude the possibility of using other terms.The use of these items is only for more square
Just essence of the invention is described and explained；Being construed as any additional limitation is disagreed with spirit of that invention
Back.
Claims (6)
1. a kind of telescopic roller shutter for exempting from punching installation, including scalable pipe crimping main body (1), which is characterized in that the telescopic scrolling
Pipe main body (1) includes outer barrel (2), is arranged with telescoping tube (3) in the outer barrel (2), the telescoping tube (3) passes through telescopic machine
Structure (4) is fixedly connected with outer barrel (2), and described telescoping tube (3) one end extends to outer barrel (2) outside and is arranged with supporting sleeve
(5), the position-limit mechanism (6) to telescoping tube (3), the outer barrel (2) are equipped on the outer barrel (2) and supporting sleeve (5)
One end far from supporting sleeve (5) is fixedly connected by bearing part (7) with chain operating roller blinds clutch (8), and the telescoping tube (3) is separate
One end of outer barrel (2) is fixedly connected by bearing part (7) with bead roller shutter tail (9), the chain operating roller blinds clutch (8) and drawing
Anti-skidding silicagel pad (10) are fixedly connected on the end face that pearl roller shutter tail (9) mutually deviates from.
2. the telescopic roller shutter according to claim 1 for exempting from punching installation, which is characterized in that the telescoping mechanism (4) includes
The inner nut (11) being arranged in outer barrel (2), the inner nut (11) are fixedly connected with outer barrel (2), the outer barrel (2)
Interior horizontal equipped with threaded rod (12), described threaded rod (12) one end extends in telescoping tube (3), inner nut (11) thread bush
It connects on threaded rod (12), screw thread is socketed with telescoping tube screw lid (13) on the threaded rod (12), the telescoping tube screw lid
(13) with telescoping tube (3) one end is fixed is clamped, it is uniformly distributed there are four the first reinforcing rib (14) in the outer barrel (2), described first
Reinforcing rib (14) is fixedly connected with outer barrel (2) inner wall, and telescoping tube (3) outer wall is equipped with and matches with the first reinforcing rib (14)
First fluting.
3. the telescopic roller shutter according to claim 1 for exempting from punching installation, which is characterized in that the position-limit mechanism (6) includes
Two cappings (15) being set on telescoping tube (3), two cappings (15) respectively with outer barrel (2) and supporting sleeve (5)
Fixed clamping, the curved wall of the capping (15) are equipped with threaded hole, it is solid that capping for fixing are equipped in the threaded hole
Determine screw (16).
4. the telescopic roller shutter according to claim 3 for exempting from punching installation, which is characterized in that the outer barrel (2), support sleeve
It is equipped with card slot in asymmetry on the upside of pipe (5) and capping (15), is connected with cord (17) in the asymmetry card slot.
5. the telescopic roller shutter according to claim 3 for exempting from punching installation, which is characterized in that the outer barrel (2), support sleeve
It is equipped with symmetrical card slot on the downside of pipe (5) and capping (15), matched T-type is equipped in the symmetrical card slot on the outer barrel (2)
It connects slide bar (18).
6. the telescopic roller shutter according to claim 2 for exempting from punching installation, which is characterized in that uniformly distributed in the telescoping tube (3)
Have there are four the second reinforcing rib (19), the telescoping tube screw lid (13) is equipped with and four the second reinforcing ribs (19) matched four
A second fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047285.9A CN109138810B (en) | 2018-09-09 | 2018-09-09 | A kind of telescopic roller shutter for exempting from punching installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047285.9A CN109138810B (en) | 2018-09-09 | 2018-09-09 | A kind of telescopic roller shutter for exempting from punching installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109138810A true CN109138810A (en) | 2019-01-04 |
| CN109138810B CN109138810B (en) | 2019-11-08 |
Family
ID=64824141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047285.9A Active CN109138810B (en) | 2018-09-09 | 2018-09-09 | A kind of telescopic roller shutter for exempting from punching installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138810B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266265A (en) * | 2021-04-14 | 2021-08-17 | 中国五冶集团有限公司 | Punching-free mounting method for temporary enclosure gate of construction site |
| CN113457044A (en) * | 2021-07-19 | 2021-10-01 | 青岛凌鼎智能科技有限公司 | Fast-assembling fire prevention keeps off flue gas floodgate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210972A1 (en) * | 1992-04-02 | 1993-10-07 | Mhz Hachtel & Co | Anti-dazzle roller blind with telescopic rods esp for motor vehicle - is inclined to vertical and guided automatically during deployment and retraction to prevent swinging and flapping |
| AU2007240252A1 (en) * | 2006-12-14 | 2008-07-03 | Hunter Douglas Industries B.V. | Roller blind mounting system and parts thereof |
| CN105649518A (en) * | 2016-01-11 | 2016-06-08 | 杭州万事达装饰用品有限公司 | Roller blind convenient to mount |
| CN205433239U (en) * | 2015-12-23 | 2016-08-10 | 刘创华 | Exempt from curtain rod of instrument installation |
| CN206592052U (en) * | 2017-01-09 | 2017-10-27 | 浙江兆事达智能家居股份有限公司 | A kind of mounting assembly of roller shutter |
| CN207377457U (en) * | 2017-11-01 | 2018-05-18 | 旭博贸易（杭州）有限公司 | A kind of bead blinds exempts to punch installation fitting |
-
2018
- 2018-09-09 CN CN201811047285.9A patent/CN109138810B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210972A1 (en) * | 1992-04-02 | 1993-10-07 | Mhz Hachtel & Co | Anti-dazzle roller blind with telescopic rods esp for motor vehicle - is inclined to vertical and guided automatically during deployment and retraction to prevent swinging and flapping |
| AU2007240252A1 (en) * | 2006-12-14 | 2008-07-03 | Hunter Douglas Industries B.V. | Roller blind mounting system and parts thereof |
| CN205433239U (en) * | 2015-12-23 | 2016-08-10 | 刘创华 | Exempt from curtain rod of instrument installation |
| CN105649518A (en) * | 2016-01-11 | 2016-06-08 | 杭州万事达装饰用品有限公司 | Roller blind convenient to mount |
| CN206592052U (en) * | 2017-01-09 | 2017-10-27 | 浙江兆事达智能家居股份有限公司 | A kind of mounting assembly of roller shutter |
| CN207377457U (en) * | 2017-11-01 | 2018-05-18 | 旭博贸易（杭州）有限公司 | A kind of bead blinds exempts to punch installation fitting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266265A (en) * | 2021-04-14 | 2021-08-17 | 中国五冶集团有限公司 | Punching-free mounting method for temporary enclosure gate of construction site |
| CN113457044A (en) * | 2021-07-19 | 2021-10-01 | 青岛凌鼎智能科技有限公司 | Fast-assembling fire prevention keeps off flue gas floodgate |
| CN113457044B (en) * | 2021-07-19 | 2022-07-08 | 青岛凌鼎智能科技有限公司 | Fast-assembling fire prevention keeps off flue gas floodgate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109138810B (en) | 2019-11-08 |
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