CN109025776A - A kind of pitched roof or flat roof roll-up window - Google Patents

A kind of pitched roof or flat roof roll-up window Download PDF

Info

Publication number
CN109025776A
CN109025776A CN201811114999.7A CN201811114999A CN109025776A CN 109025776 A CN109025776 A CN 109025776A CN 201811114999 A CN201811114999 A CN 201811114999A CN 109025776 A CN109025776 A CN 109025776A
Authority
CN
China
Prior art keywords
roller shutter
drum
bracing wire
fixed pulley
electric machine
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
CN201811114999.7A
Other languages
Chinese (zh)
Inventor
陈为军
陈继湘
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.)
Hunan Shinilion Energy-Saving Science & Technology Co ltd
Original Assignee
Hunan Shinilion Energy-Saving Science & Technology 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 Hunan Shinilion Energy-Saving Science & Technology Co ltd filed Critical Hunan Shinilion Energy-Saving Science & Technology Co ltd
Priority to CN201811114999.7A priority Critical patent/CN109025776A/en
Publication of CN109025776A publication Critical patent/CN109025776A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08Roll-type closures

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

The invention discloses a kind of pitched roof or flat roof roll-up windows, including tube shaped electric machine, tube shaped electric machine left end is provided with left drum, tube shaped electric machine right end is provided with right drum, it hangs below tube shaped electric machine equipped with roller shutter, roller shutter two sides are provided with guide groove, roller shutter bottom is provided with bottom beam, top is provided with the first fixed pulley on the left of bottom beam, lower section is provided with the second fixed pulley on the left of bottom beam, top is provided with third fixed pulley on the right side of bottom beam, bottom beam lower right-hand side is provided with the 4th fixed pulley, the left movable pulley and right movable pulley separately arranged are provided in the middle part of bottom beam, spring is provided between left movable pulley and right movable pulley, the first bracing wire is arranged on left drum, first bracing wire successively bypasses the second fixed pulley, left movable pulley, the lower left corner of roller shutter is connected to after first fixed pulley;It is arranged with the second bracing wire on right drum, the second bracing wire successively bypasses the lower right corner that roller shutter is connected to after the 4th fixed pulley, right movable pulley, third fixed pulley.The present invention can effectively realize the smooth decentralization of roller shutter.

Description

A kind of pitched roof or flat roof roll-up window
Technical field
The present invention relates to household goods technical fields, more specifically, in particular to a kind of pitched roof or flat roof roller shutter Window.
Background technique
Roll-up window is the additional collapsible spacer as a hole.Roll-up window due to have preferable heat preservation and every Sound performance, and shape is more beautiful and favored by people.Traditional roll-up window generally comprises reel, roller shutter and guide rail, passes through reel Rotation realizing roller shutter packing up in guide rail and transfer, and the rotation of reel is generally realized by motor or manually, In roller shutter decentralization, in order to enable roller shutter normally to transfer, bottom beam is set in roller shutter bottom end, passes through bottom beam and roller shutter self gravity Realize the smooth decentralization of roller shutter.Roll-up window is due to easy to use, and with preferable heat preservation and sound insulation value, and shape is more beautiful And favored by people.
It, completely can be by the gravity of roller shutter itself come real when roller shutter is transferred for traditional vertical-type roll-up window It is existing, but for some non-perpendicular type roll-up windows (such as pitched roof roll-up window), since its shutter track is there are certain angle, When roller shutter is transferred, the frictional force between roller shutter and shutter track becomes larger, and roller shutter often can not be successfully decentralization by self gravity, Once the tilt angle of pitched roof roll-up window etc. is too big, the problem of can not transferring there is also.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pitched roof or flat roof roll-up window, the pitched roof or flat roof Roll-up window is designed by its structure, can effectively ensure that roll-up window can realize the smooth decentralization of roller shutter in any setting angle.
A kind of pitched roof or flat roof roll-up window, including tube shaped electric machine, the tube shaped electric machine left end are provided with left drum, institute It states tube shaped electric machine right end and is provided with right drum, be provided with wire casing, the tube shaped electric machine on the left drum and the right drum The roller shutter for being equipped with and being rolled or be put down by the tube shaped electric machine is hung in lower section, and the roller shutter two sides are provided with rolls up for the roller shutter The guide groove of middle guiding is put, the roller shutter bottom is provided with bottom beam, and top is provided with the first fixed pulley, the bottom on the left of the bottom beam Lower section is provided with the second fixed pulley on the left of beam, and top is provided with third fixed pulley, the bottom beam lower right-hand side on the right side of the bottom beam It is provided with the 4th fixed pulley, the left movable pulley and right movable pulley separately arranged, the left dynamic cunning are provided in the middle part of the bottom beam Spring is provided between wheel and the right movable pulley, in which:
The first bracing wire is arranged on the left drum, first bracing wire successively bypasses second fixed pulley, the left side The lower left corner of the roller shutter is connected to after movable pulley, first fixed pulley;
The second bracing wire is arranged on the right drum, second bracing wire successively bypasses the 4th fixed pulley, the right side The lower right corner of the roller shutter is connected to after movable pulley, the third fixed pulley.
Preferably, first bracing wire and second bracing wire are steel cable.
Preferably, left guide roller, the left guide roller are provided between the guide groove on the left of the left drum and the roller shutter For guiding of first bracing wire on the left of the left drum and the roller shutter between guide groove.
Preferably, right guide roller, the right guide roller are provided between the guide groove on the right side of the right drum and the roller shutter For guiding of second bracing wire on the right side of the right drum and the roller shutter between guide groove.
Preferably, it is mutually fixedly connected in the middle part of the bottom beam by bolt in the middle part of the spring.
The beneficial effects of the present invention are: the pitched roof provided by the invention or flat roof roll-up window are designed by its structure, It no longer relies primarily on the weight of roller shutter itself when the roller shutter of roll-up window is put down, but relies on the first bracing wire and the of ingehious design Two bracing wires pull, it is possible to prevente effectively from roll-up window can not be successfully the case where unreeling appearance when non-perpendicular arrangement.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 and Fig. 2 is the overall structure diagram of pitched roof disclosed in the embodiment of the present invention or flat roof roll-up window;
Fig. 3 is enlarged diagram at bottom beam disclosed in the embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common The application protection all should belong in technical staff's every other embodiment obtained without making creative work Range.
In the description of the present invention, it is to be understood that, term " on ", the "lower", " orientation or position of the instructions such as left, " right side " Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is interpreted as limitation of the present invention.
Referring to Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 provides the specific implementation of a kind of pitched roof of the invention or flat roof roll-up window Example, the pitched roof provided by the invention or flat roof roll-up window include tube shaped electric machine 1, left drum 2, right drum 3, roller shutter 4, guide groove 5, bottom beam 6, the first fixed pulley 7, the second fixed pulley 8, third fixed pulley 9, the 4th fixed pulley 10, left movable pulley 11, right movable pulley 12, spring 13, the first bracing wire 14, the second bracing wire 15.The roll-up window provided by the invention is designed by its structure, in roll-up window The weight of roller shutter itself is no longer relied primarily on when roller shutter 4 is put down, but relies on the first bracing wire 14 and the second bracing wire of ingehious design 15 pull, it is possible to prevente effectively from roll-up window can not be successfully the case where unreeling appearance when non-perpendicular arrangement.
In the present solution, the pitched roof or flat roof roll-up window include tube shaped electric machine 1, tube shaped electric machine 1 is used for the volume of roller shutter 4 Offer power is played or puts down, while for driving left drum 2 and right 3 take-up of drum and unwrapping wire.Specifically, outside tube shaped electric machine 1 It is generally covered with outer cover.Wherein, Fig. 1 is the structural schematic diagram for removing the roll-up window after outer cover and guide groove 5.
1 left end of tube shaped electric machine is provided with left drum 2, and 1 right end of tube shaped electric machine is provided with right drum 3, left drum 2 and right drum Wire casing is provided on 3.Volume of the left drum 2 for the first bracing wire 14 is put, and volume of the right drum 3 for the second bracing wire 15 is put, left line The wire casing being arranged on disk 2 and right drum 3 is used to prevent the first bracing wire 14 and the second bracing wire 15 from sliding from two sides, namely for preventing The case where left drum 2 goes offline with right 3 spiral of drum or unwrapping wire process.
For left drum 2 provided by the invention is with right drum 3, left drum 2 and right drum 3 be all made of with wire casing Disk, left drum 2 and right drum 3 are fixedly connected on 1 both ends of tube shaped electric machine and rotate synchronously with tube shaped electric machine 1.
The roller shutter 4 for being equipped with and being rolled or be put down by tube shaped electric machine 1 is hung below tube shaped electric machine 1, the setting of 4 two sides of roller shutter is useful The guide groove 5 of middle guiding is put in the roller shutter volume 4,4 bottom of roller shutter is provided with bottom beam 6.Specifically, the setting position of bottom beam 6 is general Corresponding with the minimum extended position of roller shutter 4, the left and right ends of bottom beam 6 are generally connected with the bottom of guide groove 5.
6 left side top of bottom beam is provided with the first fixed pulley 7, and 6 left side lower section of bottom beam is provided with the second fixed pulley 8, and bottom beam 6 is right Upper side is provided with third fixed pulley 9, and 6 lower right-hand side of bottom beam is provided with the 4th fixed pulley 10, is provided with separately in the middle part of bottom beam 6 The left movable pulley 11 and right movable pulley 12 of arrangement, are provided with spring 13 between left movable pulley 11 and right movable pulley 12.
It is arranged with the first bracing wire 14 on left drum 2, the first bracing wire 14 is successively around the second fixed pulley 8, left movable pulley 11, the The lower left corner of roller shutter 4 is connected to after one fixed pulley 7, left drum 2 is used to control the folding and unfolding in 4 left side of roller shutter.
Be arranged with the second bracing wire 15 on right drum 3, the second bracing wire 15 successively around the 4th fixed pulley 10, right movable pulley 12, The lower right corner of the roller shutter 4 is connected to after third fixed pulley 9.Right drum 3 is used to control the folding and unfolding on 4 right side of roller shutter.
Specifically, it for this programme, is provided on the left of roller shutter 4 by left drum 2, the first bracing wire 14, the second fixed pulley 8, the elevating mechanism that left movable pulley 11, the first fixed pulley 7 are constituted, is provided with by the second bracing wire 15, the 4th fixed pulley on the right side of roller shutter 4 10, the elevating mechanism that right movable pulley 12, third fixed pulley 9 are constituted, in actual mechanical process, passes through 4 left and right side of roller shutter Elevating mechanism can smoothly realize rolling or putting down for roller shutter 4.
The process of rolling and put down of roller shutter 4 is specifically described below, because of sinistral hoist structure and dextral hoist The movement of structure is essentially identical, only illustrates by taking the movement of sinistral hoist structure as an example below.
4 wrapup procedure of roller shutter:
When roller shutter 4 needs to roll, tube shaped electric machine 1 starts, and tube shaped electric machine 1 gradually pulls up roller shutter 4, and roller shutter 4 is by one Circle circle is on tube shaped electric machine 1.Meanwhile the slow unwrapping wire of left drum 2, the first bracing wire 14 are gradually released from left drum 2, successively It is pulled and rises by the lower left corner of roller shutter 4 after the second fixed pulley 8, left movable pulley 11, the first fixed pulley 7, until roller shutter 4 is complete It is rolled by tube shaped electric machine 1.
In 4 wrapup procedure of roller shutter, since left drum 2 is rotated synchronously with tube shaped electric machine 1, if tube shaped electric machine 1 keeps revolving speed permanent Fixed, then left 2 payingoff speed of drum is held essentially constant, and the rolling speed (linear velocity) of the roller shutter 4 of 1 outer ring of tube shaped electric machine with The increase of 4 radius of roller shutter and be gradually increased, that is to say, that the rate of climb of the payingoff speed of the first bracing wire 14 and roller shutter 4 is not Matching is drawn in consideration of it, the present invention is specially devised by the system that spring 13, left movable pulley 11, right movable pulley 12 are constituted The guiding and compensation of line.
Roller shutter 4 winds early period, and the payingoff speed of the first bracing wire 14 is greater than the rate of climb of roller shutter 4, at this point, spring 13 is received Contracting, the length that the first bracing wire more than 14 is released are compensated by the shrinkage of spring 13;Roller shutter 4 winds mid-term, and the first bracing wire 14 is put When linear velocity is equal to the rate of climb of roller shutter 4, spring 13 no longer shrinks and reaches an equilibrium point;The winding later period of roller shutter 4, first When the payingoff speed of bracing wire 14 is less than the rate of climb of roller shutter 4, spring 13 is elongated, and the length that spring 13 is elongated makes up roller shutter 4 extra speed.
In this way, by the above process, can easily realize effective winding of roller shutter 4, while it is too long to avoid the occurrence of line Or it is too short caused by the situations such as card line, crash.
Roller shutter 4 puts down and (unreels) process:
When roller shutter 4 of the invention needs to put down, tube shaped electric machine 1 starts, and tube shaped electric machine 1 drives left drum 2 and 3 turns of right drum Dynamic, left drum 2 and right drum 3 start take-up when rotating, so that the first bracing wire 14 be driven to pull simultaneously with the second bracing wire 15 in passing The lower left corner of roller shutter 4 moves down with the lower right corner, and roller shutter 4 is gradually put down.
During being somebody's turn to do, roller shutter 4 is put down early period, and the take-up speed of the first bracing wire 14 is less than the decrease speed of roller shutter 4, at this point, Spring 13 is elongated, and the take-up length of the first bracing wire 14 is equal to the decentralization length of roller shutter 4 plus the elongation degree of spring 13;Roller shutter 4 Mid-term is put down, when the take-up speed of the first bracing wire 14 is equal to the decrease speed of roller shutter 4, spring 13 no longer elongates and reaches one Weighing apparatus point;Roller shutter 4 is put down the later period, and when the take-up speed of the first bracing wire 14 is greater than the decrease speed of roller shutter 4, spring 13 is compressed, bullet The reduction length of spring 13 is equal to the take-up length of the first bracing wire 14 plus the decentralization length of roller shutter 4.In this way, by the above process, It can easily realize effectively putting down for roller shutter 4.
The weight by roller shutter itself is no longer needed when roll-up window provided by the invention is put down, but relies on ingehious design Elevating mechanism pulls, it is possible to prevente effectively from roll-up window can not be successfully the case where unreeling appearance when non-perpendicular arrangement.
In the present embodiment, for the pulling for further facilitating roller shutter 4, the phenomenon that avoiding bracing wire from being broken, described first is drawn Line 14 and second bracing wire 15 are both preferably steel cable.
In the present embodiment, according to regulation track when to further facilitate the first bracing wire 14 and 15 take-up of the second bracing wire and unwrapping wire Movement, it is preferable that be provided with left guide roller 16, the left conducting wire between the guide groove 5 in 4 left side of the left drum 2 and the roller shutter Wheel 16 is used for guiding of first bracing wire 14 between 4 left side guide groove 5 of the left drum 2 and the roller shutter.The right drum 3 It is provided with right guide roller 17 between the guide groove 5 on 4 right side of roller shutter, the right guide roller 17 exists for second bracing wire 15 Guiding between 4 right side guide groove 5 of the right drum 3 and the roller shutter.
It is equal for magnitude of recruitment from spring 13 to two sides that further ensure that in the present embodiment, 13 middle part of spring with it is described It is fixedly connected in the middle part of bottom beam 6 by 18 phase of bolt.
A kind of pitched roof provided by the present invention or flat roof roll-up window are described in detail above.It is used herein A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand Method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from this , can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention In scope of protection of the claims.

Claims (5)

1. a kind of pitched roof or flat roof roll-up window, which is characterized in that including tube shaped electric machine, the tube shaped electric machine left end is provided with Left drum, the tube shaped electric machine right end is provided with right drum, is provided with wire casing on the left drum and the right drum, described The roller shutter for being equipped with and being rolled or be put down by the tube shaped electric machine is hung below tube shaped electric machine, the roller shutter two sides are provided with for institute The guide groove that roller shutter volume puts middle guiding is stated, the roller shutter bottom is provided with bottom beam, and it is fixed sliding to be provided with first for top on the left of the bottom beam Wheel, bottom beam left side lower section are provided with the second fixed pulley, and top is provided with third fixed pulley, the bottom beam on the right side of the bottom beam Lower right-hand side is provided with the 4th fixed pulley, is provided with the left movable pulley and right movable pulley separately arranged, institute in the middle part of the bottom beam It states and is provided with spring between left movable pulley and the right movable pulley, in which:
The first bracing wire is arranged on the left drum, first bracing wire successively bypasses second fixed pulley, the left dynamic cunning The lower left corner of the roller shutter is connected to after wheel, first fixed pulley;
The second bracing wire is arranged on the right drum, second bracing wire successively bypasses the 4th fixed pulley, the right dynamic cunning The lower right corner of the roller shutter is connected to after wheel, the third fixed pulley.
2. pitched roof according to claim 1 or flat roof roll-up window, which is characterized in that first bracing wire and described Two bracing wires are steel cable.
3. pitched roof according to claim 1 or flat roof roll-up window, which is characterized in that the left drum and the roller shutter Left guide roller is provided between the guide groove in left side, the left guide roller is for first bracing wire in the left drum and the volume Guiding on the left of curtain between guide groove.
4. pitched roof according to claim 1 or flat roof roll-up window, which is characterized in that the right drum and the roller shutter Right guide roller is provided between the guide groove on right side, the right guide roller is for second bracing wire in the right drum and the volume Guiding on the right side of curtain between guide groove.
5. pitched roof according to claim 1 or flat roof roll-up window, which is characterized in that in the middle part of the spring and bottom It is mutually fixedly connected in the middle part of beam by bolt.
CN201811114999.7A 2018-09-25 2018-09-25 A kind of pitched roof or flat roof roll-up window Pending CN109025776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811114999.7A CN109025776A (en) 2018-09-25 2018-09-25 A kind of pitched roof or flat roof roll-up window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811114999.7A CN109025776A (en) 2018-09-25 2018-09-25 A kind of pitched roof or flat roof roll-up window

Publications (1)

Publication Number Publication Date
CN109025776A true CN109025776A (en) 2018-12-18

Family

ID=64617722

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811114999.7A Pending CN109025776A (en) 2018-09-25 2018-09-25 A kind of pitched roof or flat roof roll-up window

Country Status (1)

Country Link
CN (1) CN109025776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204275A (en) * 2020-03-20 2020-05-29 攀枝花良运通环保科技有限公司 Covering system for a freight car

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201236615Y (en) * 2008-07-22 2009-05-13 重庆工学院 Automatic lifting mesh window
CN203924525U (en) * 2014-07-01 2014-11-05 武汉景坤思凯节能工程有限公司 Outdoor ceiling blind
CN204200053U (en) * 2014-10-29 2015-03-11 天津裕强华丰不锈钢有限公司 New type stainless steel. corrosion resistance roller shutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201236615Y (en) * 2008-07-22 2009-05-13 重庆工学院 Automatic lifting mesh window
CN203924525U (en) * 2014-07-01 2014-11-05 武汉景坤思凯节能工程有限公司 Outdoor ceiling blind
CN204200053U (en) * 2014-10-29 2015-03-11 天津裕强华丰不锈钢有限公司 New type stainless steel. corrosion resistance roller shutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204275A (en) * 2020-03-20 2020-05-29 攀枝花良运通环保科技有限公司 Covering system for a freight car

Similar Documents

Publication Publication Date Title
US20050241779A1 (en) Retractable self rolling blind, awning or cover apparatus
CN207896552U (en) A kind of steel strand wires wrap-up
US8820387B2 (en) Winding device for covering wall openings or windows
MXPA04005431A (en) Device for rolling up/rolling down a shade.
CN109025776A (en) A kind of pitched roof or flat roof roll-up window
CN102108833A (en) Upper unfolding roller shutter and application thereof
US8459329B2 (en) Flexible partition roller system
CN106527032B (en) A kind of electronic last volume projection screen
JPS6230925Y2 (en)
CN209082962U (en) The roll device of Lifting basket equipment
CN112537693A (en) Traction incoming line angle reciprocating self-changing type wire-clamping-preventing wire winding device
CN215859906U (en) Electric curtain winding structure
KR200428296Y1 (en) Going up and down device of stage
CN108439088B (en) Wire rope winding and unwinding device and wire rope winding and unwinding method
CN209082963U (en) Lifting basket equipment
CN114314179A (en) Well cable conductor winding and unwinding devices
CN211592376U (en) Semitrailer coiling mechanism convenient to receive and release canvas
CN221277417U (en) Opening and closing control device for backdrop
CN203285316U (en) Wind resistance device of rolling door and rolling door
CN206301141U (en) A kind of last volume projection screen
CN109235866A (en) Lifting basket equipment
CN210439940U (en) Rope winder for sun-shading curtain
CN210888734U (en) Rolling type ceiling curtain structure
CN220351400U (en) Wire rope coils exhibition and puts device
JP2561040Y2 (en) Winding shaft drive for opening and closing greenhouse curtains

Legal Events

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