CN212130352U - Winding tube structure of curtain without pulling wire - Google Patents
Winding tube structure of curtain without pulling wire Download PDFInfo
- Publication number
- CN212130352U CN212130352U CN202020183451.4U CN202020183451U CN212130352U CN 212130352 U CN212130352 U CN 212130352U CN 202020183451 U CN202020183451 U CN 202020183451U CN 212130352 U CN212130352 U CN 212130352U
- Authority
- CN
- China
- Prior art keywords
- winding
- axial
- curtain
- bobbin
- limiting
- 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.)
- Active
Links
Images
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model relates to the technical field of curtains, in particular to a winding tube structure of a curtain without stay wires, which comprises a rotating tube and a winding tube, wherein the rotating tube is sleeved with a rotating shaft; a bobbin including a first winding portion and a second winding portion; a left end cap; a right end cap; the bottom of one axial end of the blocking cover is connected with the left end cover, a blocking cover bulge is arranged at the bottom of the blocking cover, and the thickness of the blocking cover bulge is matched with the first winding part so that the gap between the blocking cover bulge and the first winding part is kept equal. The first end of the axial of the first portion of winding of bobbin diminishes to its axial second end diameter gradually in this application for the stay cord can arrange in proper order around rolling up the axial second end that the in-process can be automatic fast to slide to first portion of winding and between two adjacent circles of stay cord, the bobbin of this structure makes the curtain body lift the in-process at last promptly, the stay cord winding displacement is quick neat, card rope or fold rope phenomenon can not appear, thereby optimized the result of use of the curtain of not acting as go-between, the use experience that has improved the user feels.
Description
Technical Field
The utility model relates to the technical field of curtains, in particular to a bobbin structure of a curtain without stay wires.
Background
With the increasing requirements of people on living quality, the application of the curtain without the pull wire becomes wider and wider. The curtain without pull wire generally comprises a curtain body, an upper beam and a lower beam, when the lower beam is pulled down by external force, the curtain body is unfolded, and the pull wire is rolled down from a rope rolling drum; when the lower beam is supported by external force, the curtain body is folded, and the pull rope is wound on the rope winding drum in sequence. The curtain body of the existing curtain without the pull wire needs to be operated very carefully in the process of lifting, otherwise, the phenomena of rope clamping and rope folding are easily caused in the pull wire, so that the curtain body cannot be smoothly folded, and the use experience of the curtain is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a winding tube structure of a curtain without stay wires, aiming at the problems existing in the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a winding tube structure of a curtain without pull wires comprises
The rotating pipe is used for being sleeved with the rotating shaft;
a bobbin comprising
A first winding portion having a diameter gradually decreasing from a first end to a second end in an axial direction;
the axial end of the second winding part is connected with the axial first end of the first winding part, and the diameter of any position of the second winding part is equal to that of the axial first end;
the left end cover is sleeved with the rotating pipe and is connected with the other axial end of the second winding part;
the right end cover is sleeved with the rotating pipe and is connected with the axial second end of the first winding part;
the bottom of one axial end of the blocking cover is connected with the left end cover, a blocking cover bulge is arranged at the bottom of the blocking cover, and the thickness of the blocking cover bulge is matched with the first winding part so that the gap between the blocking cover bulge and the first winding part is kept equal.
Preferably, the inner pipe wall of the rotating pipe is provided with a limiting surface, and the outer shaft wall of the rotating shaft is provided with a limiting butt joint surface which is connected with the limiting surface in a matched manner.
Preferably, the axial length of the first winding portion is 8 to 12 times the axial length of the second winding portion.
Preferably, an axial cross section of the first winding portion is in an equilateral trapezoid shape.
Preferably, the left end cap comprises
The first limiting sleeve part is sleeved with the rotating pipe and keeps a certain distance with the corresponding end of the rotating pipe;
spacing piece portion one, with the second portion of winding is connected, the diameter of spacing piece portion one is greater than the diameter of second portion of winding.
Preferably, the right end cap comprises
The second limiting sleeve part is sleeved with the rotating pipe and keeps a certain distance with the corresponding end of the rotating pipe;
and the second limiting baffle part is connected with the first winding part, and the diameter of the second limiting baffle part is larger than that of the second axial end of the first winding part.
Preferably, the gap between the blocking cover protrusion and the first winding part is larger than the diameter of the pull rope by 1.5 times.
Preferably, the rotating tube, the left end cap, and the bobbin are integrally formed.
Advantageous effects
In the application, the diameter of the axial first end of the first winding part of the winding drum is gradually reduced towards the axial second end of the first winding part, so that the stay ropes can automatically and quickly slide to the axial second end of the first winding part in the winding process, and two adjacent circles of stay ropes can be sequentially arranged, namely, the winding drum of the structure enables the cable arrangement of the stay ropes to be quick and tidy in the lifting process of the curtain body, the phenomenon of rope clamping or rope folding cannot occur, the use effect of the curtain without the stay ropes is optimized, and the use experience of a user is improved; in addition, the arrangement of the protrusion of the blocking cover enables the gap between the blocking cover and the first winding part to allow only one pull rope to pass through, so that the condition of overlapping the pull ropes is further prevented, and the use smoothness of the curtain without the pull ropes is further improved.
Drawings
FIG. 1 is a schematic view of a bobbin structure of a cordless window covering of the present application;
FIG. 2 is a schematic view of a second view of the bobbin of FIG. 1;
FIG. 3 is a structural schematic view of a third view of the bobbin of FIG. 1;
fig. 4 is a structural schematic diagram of a view angle four of the bobbin in fig. 1.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 4, a winding tube structure of a curtain without pulling wire comprises a rotating tube 1, a winding drum 2, a left end cover 3, a right end cover and a blocking cover 5.
The rotating tube 1 is used for being sleeved with the rotating shaft 11, the inner wall of the rotating tube 1 is provided with a limiting surface, the outer shaft wall of the rotating shaft 11 is provided with a limiting butt joint surface which is matched and connected with the limiting surface, and the rotating tube 1 and the rotating shaft 11 can be well driven by the limiting surface and the limiting butt joint surface, so that slipping of the rotating tube 1 and the rotating shaft is avoided, the using effect of the winding tube is improved, and the using effect of the curtain without the pull wire is improved.
The bobbin 2 includes a first winding portion 21 and a second winding portion 22. The diameter of the first winding portion 21 from the axial first end to the axial second end is gradually reduced, and the axial end of the second winding portion 22 is connected with the axial first end of the first winding portion 21, and the diameter of any position of the second winding portion is equal to the diameter of the axial first end. The axial section of the first winding portion 21 may have an equilateral trapezoid shape. The axial length of the first winding portion 21 may be 10 times the axial length of the second winding portion 22.
One end of the pull rope is firstly wound on the second winding part 22 for two or three turns and then is fixedly connected with the second end of the first winding part 21. In-process is lifted on the curtain body, the stay cord rotates along with the bobbin and can automatic winding on bobbin 2, because first wire winding portion 21 inclines to set up, the stay cord can be automatic fast to slide to the axial second end of first wire winding portion 21 and can arrange in proper order between the adjacent two rings of stay cords around rolling up the in-process, the bobbin 2 of this structure makes the curtain body lift the in-process promptly, the stay cord winding displacement is quick neat, card rope or fold rope phenomenon can not appear, thereby the result of use of the curtain of not acting as go-between has been optimized, user's use experience is felt to have been improved.
The left end cover 3 is sleeved with the rotating tube 1 and is connected with the other axial end of the second winding part 22. The right end cover is sleeved with the rotating pipe 1 and connected with the axial second end of the first winding part 21. The left end cover 3 comprises a first limiting sleeve part 31 and a first limiting baffle part 32, and the first limiting sleeve part 31 is sleeved with the rotating pipe 1 and keeps a certain distance with the corresponding end of the rotating pipe 1. The first limiting stopper part 32 is connected with the second winding part 22, and the diameter of the first limiting stopper part 32 is larger than that of the second winding part 22, so that the stay rope is prevented from sliding off the bobbin 2 from the left end. The right end cover comprises a second limiting sleeve part 41 and a second limiting baffle part 42, and the second limiting sleeve part 41 is sleeved with the rotating pipe 1 and keeps a certain distance with the corresponding end of the rotating pipe 1. The second limit stop piece 42 is connected with the first winding part 21, and the diameter of the second limit stop piece 42 is larger than that of the axial second end of the first winding part 21, so that the pull rope is prevented from sliding off the bobbin 2 from the right end.
The stay-free curtain comprises an upper beam for installing the winding tube, two pairs of supporting frames are arranged inside the upper beam, the winding tube is assembled by one pair of supporting frames, the supporting frames specifically comprise two supporting plates, the tops of the supporting plates are provided with assembling ports for accommodating the corresponding ends of the rotating tubes 1, and the rotating tubes 1 rotate in the assembling ports in a radial limiting mode. In addition, the distance between the two supporting plates is just the distance between the axial free end of the first limiting sleeve part 31 and the axial free end of the second limiting sleeve part 41, namely, the axial free end of the first limiting sleeve part 31 and the axial free end of the second limiting sleeve part 41 are both abutted against the corresponding supporting plates, so that the axial limiting effect is achieved.
The bottom of one axial end of the blocking cover 5 is connected with the left end cover 3, the bottom of the blocking cover 5 is provided with a blocking cover bulge 6, and the thickness of the blocking cover bulge 6 is matched with the first winding part 21 so as to keep the same gap between the blocking cover bulge 6 and the first winding part 21. The gap between the retaining cover protrusion 6 and the first winding portion 21 is larger than the diameter of the pull rope by 1.5 times, and may be 1.3 times. Due to the arrangement of the blocking cover bulge 6, only one pull rope can pass through the gap between the blocking cover 5 and the first winding part 21, the situation of overlapping the pull ropes is further prevented, and the use smoothness of the curtain without the pull rope is further improved.
The rotating tube 1, the left end cover 3 and the bobbin 2 are integrally formed, so that the stability of the bobbin structure is guaranteed. The right end cover is detachably connected with the rotating tube 1 and the winding drum 2, and the blocking cover 5 is detachably connected with the left end cover 3, so that the convenience of assembling and maintaining the stay cord is ensured.
In addition, the application does not limit other structures of the curtain without the stay wire, and the structure in the prior art can be adopted. The curtain body can be a honeycomb type curtain body, a shutter type curtain body or a shutter type curtain body.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (8)
1. A winding tube structure of a curtain without stay wires is characterized in that: comprises that
The rotating pipe (1) is sleeved with the rotating shaft (11);
a bobbin (2) comprising
A first winding portion (21) having a diameter gradually decreasing from a first end to a second end in an axial direction;
a second winding portion (22) having one axial end connected to the first axial end of the first winding portion (21) and having a diameter equal to that of the first axial end at any position;
the left end cover (3) is sleeved with the rotating pipe (1) and is connected with the other axial end of the second winding part (22);
the right end cover is sleeved with the rotating pipe (1) and is connected with the axial second end of the first winding part (21);
keep off lid (5), axial one end bottom with left end cover (3) are connected, keep off lid (5) bottom and be equipped with and keep off lid arch (6), keep off the protruding thickness of lid (6) with first wire winding portion (21) cooperation sets up so that keep off lid arch (6) with clearance between first wire winding portion (21) keeps equal.
2. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the inner pipe wall of the rotating pipe (1) is provided with a limiting surface, and the outer shaft wall of the rotating shaft (11) is provided with a limiting butt joint surface which is connected with the limiting surface in a matched mode.
3. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the axial length of the first winding portion (21) is 8 to 12 times the axial length of the second winding portion (22).
4. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the axial section of the first winding part (21) is in an equilateral trapezoid shape.
5. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the left end cover (3) comprises
The limiting sleeve part I (31) is sleeved with the rotating pipe (1) and keeps a certain distance with the corresponding end of the rotating pipe (1);
and the first limiting baffle part (32) is connected with the second winding part (22), and the diameter of the first limiting baffle part (32) is larger than that of the second winding part (22).
6. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the right end cover comprises
The second limiting sleeve part (41) is sleeved with the rotating pipe (1) and keeps a certain distance with the corresponding end of the rotating pipe (1);
and the second limiting baffle part (42) is connected with the first winding part (21), and the diameter of the second limiting baffle part (42) is larger than that of the axial second end of the first winding part (21).
7. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the clearance between the blocking cover bulge (6) and the first winding part (21) is larger than the diameter of the pull rope and is smaller than 1.5 times of the diameter of the pull rope.
8. The bobbin structure of a cordless window curtain as claimed in claim 1, wherein: the rotating tube (1), the left end cover (3) and the winding reel (2) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020183451.4U CN212130352U (en) | 2020-02-19 | 2020-02-19 | Winding tube structure of curtain without pulling wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020183451.4U CN212130352U (en) | 2020-02-19 | 2020-02-19 | Winding tube structure of curtain without pulling wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130352U true CN212130352U (en) | 2020-12-11 |
Family
ID=73676951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020183451.4U Active CN212130352U (en) | 2020-02-19 | 2020-02-19 | Winding tube structure of curtain without pulling wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212130352U (en) |
-
2020
- 2020-02-19 CN CN202020183451.4U patent/CN212130352U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101182509B1 (en) | Blind | |
| TWM397422U (en) | Multiplying rolling mechanism of stringless curtain | |
| AU2013206330B2 (en) | Curtain | |
| WO2017132786A1 (en) | Automatic umbrella | |
| CN106869744B (en) | Wiring mechanism, upper rail assembly and curtain | |
| CN109236161B (en) | Power assembly and curtain | |
| CN210134790U (en) | Shutter folding and unfolding mechanism | |
| CN212130352U (en) | Winding tube structure of curtain without pulling wire | |
| CN102301086A (en) | Roller Shade System Having A Pleated Fabric | |
| EP1548225B1 (en) | Lifting cable winding device of solar radiation shielding device | |
| KR101620606B1 (en) | Sorting device for blind slats | |
| CN110185372A (en) | It is a kind of without drawing curtain and its transmission component | |
| CN211448457U (en) | Rope threading component for curtain and curtain using same | |
| CN214787118U (en) | Spring rolling curtain capable of being started and stopped at will | |
| WO2022116360A1 (en) | Multi-track curtain device, driving method and electric curtain | |
| JP6239955B2 (en) | Solar shading device | |
| CN210396591U (en) | Non-pull curtain and transmission assembly thereof | |
| CN211041072U (en) | Rolling device and cigarette machine with same | |
| CN208502627U (en) | Sunshade | |
| US20240263512A1 (en) | Roman blind | |
| CN217294212U (en) | Double-spring roller structure of sun shade | |
| CN206043694U (en) | A kind of folding umbrella framework turns down automatic reset structure | |
| CN210888734U (en) | Rolling type ceiling curtain structure | |
| TWM561724U (en) | Pulling rope hiding device for window curtain | |
| CN217602530U (en) | Simple blind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |