CN114059906B - Curtain and curtain limiting device - Google Patents
Curtain and curtain limiting device Download PDFInfo
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- CN114059906B CN114059906B CN202110662435.2A CN202110662435A CN114059906B CN 114059906 B CN114059906 B CN 114059906B CN 202110662435 A CN202110662435 A CN 202110662435A CN 114059906 B CN114059906 B CN 114059906B
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- curtain
- transmission module
- rail
- rotating
- rotating member
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- 230000005540 biological transmission Effects 0.000 claims abstract description 184
- 238000004804 winding Methods 0.000 claims description 82
- 238000004378 air conditioning Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000001174 ascending effect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Classifications
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- 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
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/34—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable roller-type; Roller shutters with adjustable lamellae
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention provides a curtain, which comprises a curtain rail, a middle rail, a lower rail, a curtain body, a first transmission module, a second transmission module and a curtain limiting device. The curtain body is arranged between the curtain rail and the lower rail. The first transmission module and the second transmission module are respectively arranged in the curtain rail and are respectively used for controlling the middle rail and the lower rail to ascend or descend. The curtain limiting device is arranged in the curtain rail, and is connected between the first transmission module and the second transmission module, and the lifting stroke of the curtain is limited and controlled by the curtain limiting device. In addition, a curtain limiting device is also provided.
Description
Technical Field
The present invention relates to a window curtain and a window curtain limiting device, and more particularly to a window curtain and a window curtain limiting device applied to a two-stage window curtain.
Background
Curtains are a common household device, and in general, the curtain is provided for shielding the sun, providing necessary privacy in the house, or providing decoration. The types of curtains are numerous, for example: blind (Venetian Blinds), roman Shades (Roman Shades), or Cellular Shades (Cellular Shades), among others. The blind consists of a strip of strip-shaped materials which are similar to blades, and the angle of the blind sheet is changed by a pull rope so as to control the intensity of light. The roman shade is provided with a plurality of cross bars respectively penetrating the shade fabric at proper intervals, and the cross bars increase the weight of the shade fabric of the roman shade, thereby preventing the shade fabric from drifting due to wind blowing. The honeycomb curtain is also called an organ curtain, is a new development structure aiming at curtain energy conservation in recent years, and a unique hollow honeycomb is designed in a curtain structure, so that the curtain has the effects of heat insulation and heat preservation, can maintain indoor constant temperature and reduce indoor temperature severe change caused by external environment.
The two-section curtain is usually provided with an upper curtain and a lower curtain which are independently controlled, and when a user wants to avoid peeping indoor conditions by outsiders and wants the upper window to penetrate light, the user can respectively adjust the areas of the upper curtain and the lower curtain for shielding the window according to the requirements, so that the requirements of the user are met.
Generally, a window shade is provided with a pull cord, and the window shade can be pulled up or down by operating the pull cord to be folded or unfolded. In the two-section type curtain, the first transmission module and the second transmission module can individually control the lifting stroke of the middle rail and the lower rail so as to achieve the purpose of individually and independently controlling the upper curtain and the lower curtain.
When the upper curtain and the lower curtain are separately operated to control the opening and closing, the problem that the rope is knotted is easy to occur under certain conditions. For example, when both the upper curtain and the lower curtain are in an unfolded state, the lower rail is raised by controlling the second transmission module to fold the lower curtain, if the lower curtain is fully folded, the second transmission module is continuously controlled, and then the lower rail is continuously raised, so that the lower rail contacts or is pushed to the middle rail, and the middle rail and the upper curtain are forcedly folded upwards, that is, the raising stroke of the middle rail is not controlled by controlling the first transmission module of the middle rail. Because the rope line in the first transmission module of the control middle rail is not rolled at this moment, the rope line of the control middle rail is in a loose state, when a user rolls the wire wheel in the first transmission module next time, the rope line in the loose state can be irregularly and randomly wound on the wire wheel, further the wire wheel can not roll due to overlapping and knotting, and the probability of the jamming fault of the transmission module is increased. Therefore, the two-section curtain in the prior art has the problem that the ropes are overlapped and wound in the process of opening or closing the curtain, and the problems are that the curtain can be failed or even cause the safety doubt in use, so the two-section curtain in the prior art still cannot meet the requirements of users.
Therefore, it is an object of the present invention to improve the window curtain and the window curtain limiting device.
Disclosure of Invention
The invention provides a curtain and a curtain limiting device, wherein the curtain limiting device is used for limiting and controlling the lifting stroke of the curtain, so that the overlapping and winding of the rope on the winding device in the process of controlling the curtain to be unfolded or folded can be prevented.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a window covering, comprising:
a curtain rail;
a middle rail;
a lower rail, wherein the middle rail is arranged between the curtain rail and the lower rail;
the curtain body is arranged between the curtain rail and the lower rail and comprises an upper curtain and a lower curtain, wherein the upper curtain is connected between the curtain rail and the middle rail, and the lower curtain is connected between the middle rail and the lower rail;
the first transmission module and the second transmission module are respectively arranged in the curtain rail, the first transmission module controls the middle rail to ascend or descend, the second transmission module controls the lower rail to ascend or descend, the first transmission module and the second transmission module respectively comprise a speed changing device, a transmission rod and a pair of wire coiling devices, the transmission rod is linked with the speed changing device and the pair of wire coiling devices, the speed changing device of the first transmission module and the speed changing device of the second transmission module are respectively correspondingly connected with a pull rope, the pair of wire coiling devices of the first transmission module and the pair of wire coiling devices of the second transmission module are respectively connected with a wire, one end of each wire of the pair of wire coiling devices of the first transmission module is connected with the middle rail, and one end of each wire of the pair of wire coiling devices of the second transmission module is connected with the lower rail; and
The curtain limiting device is arranged in the curtain rail, the curtain limiting device is connected between the first transmission module and the second transmission module, and the first transmission module, the second transmission module and the curtain limiting device are positioned on an axis in the curtain rail, and the curtain limiting device comprises:
the first rotating piece is linked with the transmission rod in the first transmission module and comprises a first head part and a first combining part, the first combining part is connected with the first head part, and the surface of the first combining part is provided with an external thread;
the second rotating piece is rotatably arranged in the second rotating piece and is linked with the transmission rod in the second transmission module, the first rotating piece and the second rotating piece are of a male-female matched structure, the second rotating piece comprises a second head part, a second combining part and a screw hole, the second combining part is connected with the second head part, the first head part faces the second head part, the external thread on the surface of the first combining part can be matched with the internal thread in the screw hole, so that the first combining part can move in the screw hole in a rotating mode, a first rotating stroke is formed between the first rotating piece and the second rotating piece, and the surface of the second combining part is provided with the external thread; a kind of electronic device with high-pressure air-conditioning system
The fixed seat body is rotatably arranged outside the second rotating piece, the second rotating piece and the fixed seat body are of another male-female matched structure, the fixed seat body comprises a through hole, the through hole is used for the second combining part in the second rotating piece to pass through, the external thread on the surface of the second combining part can be matched with the internal thread in the through hole, so that the second combining part can move in the through hole in a rotating mode, and a second rotating stroke is formed between the fixed seat body and the second rotating piece.
The curtain comprises: the first rotating member, the second rotating member and the fixed seat are respectively located on the axis.
The curtain comprises: an end face of the first head faces an end face of the second head, and a dimension of the end face of the first head is equal to a dimension of the end face of the second head.
The curtain comprises: the first rotating member and the second rotating member respectively comprise a stop part, and the stop parts are mutually clamped to limit the first rotating member and the second rotating member to mutually rotate.
The curtain comprises: the second rotating piece and the fixed seat body respectively comprise a stop part, and the second rotating piece and the fixed seat body are limited to rotate mutually by means of the mutual clamping of the stop parts.
A curtain stop device for a curtain, its characterized in that: the curtain comprises a curtain rail, a middle rail, a lower rail, a curtain body, a first transmission module and a second transmission module, wherein the middle rail is arranged between the curtain rail and the lower rail, the curtain body comprises an upper curtain and a lower curtain, the upper curtain is connected between the curtain rail and the middle rail, the lower curtain is connected between the middle rail and the lower rail, the first transmission module and the second transmission module are respectively arranged in the curtain rail, the first transmission module controls the middle rail to ascend or descend, the second transmission module controls the lower rail to ascend or descend, the first transmission module and the second transmission module respectively comprise a speed changing device, a transmission rod and a pair of winding devices, the transmission rod is linked with the speed changing device and the pair of winding devices, the speed changing device of the first transmission module and the speed changing device of the second transmission module are respectively correspondingly connected with one pull rope, the pair of winding devices of the first transmission module and the second transmission module are respectively connected with one end of the winding wire of the first transmission module and one end of the first rope and the second transmission module and the first end of the first rope and the second transmission module are respectively arranged in the curtain rail, the transmission module and the first transmission module and the second transmission module are respectively arranged in the curtain are respectively, the transmission module and the limit device is arranged in the one end of the curtain, and the transmission module is located in the one end, and the transmission module is located in the one or between the transmission and the two end and the transmission device and the limit device:
The first rotating piece is used for being linked with the transmission rod in the first transmission module and comprises a first head part and a first combining part, the first combining part is connected with the first head part, and the surface of the first combining part is provided with an external thread;
the second rotating piece is rotatably arranged in the second rotating piece and is used for linking the transmission rod in the second transmission module, the first rotating piece and the second rotating piece are of a male-female matched structure, the second rotating piece comprises a second head part, a second combining part and a screw hole, the second combining part is connected with the second head part, the first head part faces the second head part, the external thread on the surface of the first combining part can be matched with the internal thread in the screw hole, so that the first combining part can move in the screw hole in a rotating mode, a first rotating stroke is formed between the first rotating piece and the second rotating piece, and the surface of the second combining part is provided with the external thread; and
the fixed seat body is rotatably arranged outside the second rotating piece, the second rotating piece and the fixed seat body are of another male-female matched structure, the fixed seat body comprises a through hole, the through hole is used for the second combining part in the second rotating piece to pass through, the external thread on the surface of the second combining part can be matched with the internal thread in the through hole, so that the second combining part can move in the through hole in a rotating mode, and a second rotating stroke is formed between the fixed seat body and the second rotating piece.
The curtain limiting device comprises: the first rotating member, the second rotating member and the fixed seat are respectively located on the axis.
The curtain limiting device comprises: an end face of the first head faces an end face of the second head, and a dimension of the end face of the first head is equal to a dimension of the end face of the second head.
The curtain limiting device comprises: the first rotating member and the second rotating member respectively comprise a stop part, and the stop parts are mutually clamped to limit the first rotating member and the second rotating member to mutually rotate.
The curtain limiting device comprises: the second rotating piece and the fixed seat body respectively comprise a stop part, and the second rotating piece and the fixed seat body are limited to rotate mutually by means of the mutual clamping of the stop parts.
Based on the above, the invention can limit and control the lifting travel of the middle rail and the lower rail of the curtain by the curtain limiting device, and prevent the overlapping and winding of the rope wires on the rope wires in the winding device.
In order to make the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic view of an embodiment of a window covering of the present invention.
Fig. 2 is a schematic view of a partial component of the window covering rail of fig. 1.
Fig. 3 is a schematic view of the winding device and the curtain limiting device of fig. 2 separated from the curtain rail.
Fig. 4 is a schematic view of a curtain stop device according to the present invention.
Fig. 5 is an exploded view of the curtain stop of fig. 4.
Fig. 6A is a schematic view of an embodiment of a curtain limiter of the present invention.
Fig. 6B is a schematic view of another embodiment of a curtain limiter of the present invention.
Fig. 6C is a schematic view of another embodiment of a curtain limiter of the present invention.
Reference numerals illustrate: 12. 14-pulling ropes; 50-curtain; 51-curtain body; 51A-upper curtain; 51B-lower curtain; 52-curtain rail; 522-a receiving groove; 54-middle rail; 55-lower rail; 56-a first transmission module; 562-a transmission; 564-a transmission rod; 5641. 5642-a rod body; 565. 566-a wire winding device; 5661-a winding reel base; 5662. 5664-a fixing member; 568. 569-cord; 58-a second transmission module; 582-speed change device; 584-a transmission rod; 5841. 5842-rod body; 585. 586-a winding device; 5861-a winding seat; 5862. 5864-a mount; 588. 589-cord; 100-curtain limiting device; 110-a first rotating member; 111-stop; 112-a first head; 112A, 112B-end faces; 114-a first bond; 116-holes; 118-inner holes; 120-a second rotating member; 121. 123-stop; 122-a second head; 122A, 122B-end faces; 124-a second junction; 126. 128-screw holes; 129-holes; 130-a fixed seat body; 130A-surface; 131-a stop; 132-perforating; 134-internal threads; d1-middle rail movement travel; d2-a lower rail moving stroke; an L-axis; l1-the descending direction; l2-the rising direction; g1-a first direction; g2—a second direction; p1-a first rotational travel; p2-second rotational travel.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical solution of the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the embodiments, the descriptions of the "left" and "right" are merely given in the directions of the drawings, and are not intended to limit the present invention. The terms "first," "second," and "third" are used to describe various elements, which are not limited by such terms. Moreover, for the sake of convenience and clarity in the description, thicknesses or dimensions of elements in the drawings are shown in exaggerated or omitted or schematic form for understanding and reading by those skilled in the art, and dimensions of the elements are not completely the actual dimensions thereof, and are not intended to limit the applicable limitations of the present invention, so that any modification of structures, changes in proportions, or adjustment of dimensions, without affecting the effects and the objects achieved by the present invention, are within the scope of the technical disclosure.
Fig. 1 is a schematic view of an embodiment of a window covering of the present invention. Please refer to fig. 1. The window shade 50 of the present embodiment at least includes a shade body 51, a shade rail 52, a middle rail 54, a lower rail 55, a first transmission module 56, a second transmission module 58, and a window shade limiting device 100. The curtain body 51 is disposed between the curtain rail 52 and the lower rail 55, the curtain body 51 includes an upper curtain 51A and a lower curtain 51B, wherein the upper curtain 51A is connected between the curtain rail 52 and the middle rail 54, and the lower curtain 51B is connected between the middle rail 54 and the lower rail 55. The curtain 50 of the present embodiment is not limited in any way, the curtain body 51 can be adjusted to be a blind, a roman shade, a honeycomb shade or any type of curtain body according to the actual product, and of course, the material of the curtain body 51 can also be adjusted according to the actual requirement, and the present embodiment does not limit the material of the curtain body 51.
Fig. 2 is a schematic view of a partial component of the window covering rail of fig. 1. Fig. 3 is a schematic view of the winding device and the curtain limiting device of fig. 2 separated from the curtain rail. Note that, since the winding devices 565, 566 in fig. 1 are similar elements, the winding devices 585, 586 are similar elements, and the winding devices 565 and 585 are omitted in fig. 2 and 3, respectively, for the convenience of description. Please refer to fig. 1 to 3. In the present embodiment, a first transmission module 56 for controlling the middle rail 54 to ascend in the ascending direction L2 or descend in the descending direction L1 and a second transmission module 58 for controlling the lower rail 55 to ascend in the ascending direction L2 or descend in the descending direction L1 are disposed in the curtain rail 52, wherein the left pull rope 12 is connected to the first transmission module 56 and controls the middle rail 54 to have a middle rail moving travel D1, wherein the middle rail moving travel D1 is a distance from the bottom side of the curtain rail 52 to the top side of the middle rail 54, that is, a movable travel of the middle rail 54, that is, a reelable range of the upper curtain 51A; the right pull cord 14 is connected to the second transmission module 58 and controls the lower rail 55 to have a lower rail movement stroke D2, the distance of the lower rail movement stroke D2 from the bottom side of the middle rail 54 to the top side of the lower rail 55, that is, the movable stroke of the lower rail 55, that is, the range in which the lower curtain 51B can be rolled.
In the present embodiment, the first transmission module 56 and the second transmission module 58 are disposed on two sides of the window curtain rail 52 in the accommodating groove 522 and are located on the same axis L. The first transmission module 56 includes a speed changing device 562, a transmission rod 564 and a pair of winding devices 565 and 566, wherein the transmission rod 564 is respectively inserted into the winding devices 566 and 565 and the speed changing device 562, a rod body 5641 at one end of the transmission rod 564 is linked with the speed changing device 562 and the winding devices 566 and 565, and a rod body 5642 at the other end of the transmission rod 564 is linked with the winding device 566 and the curtain limiting device 100. Similarly, the second transmission module 58 includes a speed changing device 582, a transmission rod 584, and winding devices 585 and 586, wherein the transmission rod 584 is respectively threaded through the winding devices 585 and 586 and the speed changing device 582, a rod 5841 at one end of the transmission rod 584 is coupled to the speed changing device 582 and the winding devices 586 and 585, and a rod 5842 at the other end of the transmission rod 584 is coupled to the winding device 586 and the curtain limiting device 100.
In an embodiment, referring to fig. 2 and 3, the winding device 566 may include a winding base 5661 and fixing members 5662, 5664 disposed on two sides thereof, the winding base 5661 may be fixed in the receiving groove 522 of the curtain rail 52, the fixing members 5662, 5664 are disposed on two sides of the winding base 5661, the winding device 566 is accommodated in the winding base 5661, and the fixing members 5662, 5664 are clamped on two sides of the winding device 566. The rod body 5641 at one end of the transmission rod 564 is inserted through the fixing member 5662 and the winding device 566, and the rod body 5642 at the other end of the transmission rod 564 is inserted through the winding device 566 and the fixing member 5664. Similarly, the winding device 565 can be configured according to the components in the winding device 566, that is, the winding device 565 also has a winding seat and fixing members provided on both sides thereof. However, the winding base 5661 and the fixing members 5662, 5664 of the fixed winding device 566 are merely one embodiment, and the present invention is not limited to the components of the fixed winding device 566. In addition, in this embodiment, by providing the speed changing device 562 for the pull rope 12 to link the transmission rod 564, for example, a speed changing gear set is provided in the speed changing device 562 to convert the pulling distance of the pull rope 12 into a proper rotation speed of the corresponding transmission rod 564. The winding devices 565, 566 are used to wind or unwind (wind or unwind) the corresponding cord 569, 568, wherein one end of the cord 569, 568 is connected to the middle rail 54.
Similarly, in an embodiment, the winding device 586 may include a winding base 5861 and fixing members 5862 and 5864 disposed at two sides of the winding base 5861, the winding base 5861 may be fixed in the receiving groove 522 of the curtain rail 52, the fixing members 5862 and 5864 are disposed at two sides of the winding base 5661, the winding device 586 is accommodated in the winding base 5861, and the fixing members 5862 and 5864 are clamped at two sides of the winding device 586. The rod 5841 at one end of the transmission rod 584 is inserted into the fixing member 5862 and the winding device 586, and the rod 5842 at the other end of the transmission rod 584 is inserted out of the winding device 586 and the fixing member 5864. Similarly, the winding device 585 may be configured according to the components in the winding device 586, that is, the winding device 585 also has a winding seat and fixing members disposed on both sides thereof. However, the winding base 5861 and the fixing members 5862, 5864 of the winding fixing device 586 are merely one embodiment, and the present invention is not limited to the components of the winding fixing device 586. In addition, in this embodiment, by providing the gear shifting device 582 for driving the driving rod by the pulling rope 14, for example, a gear shifting set is provided in the gear shifting device 582 to convert the pulling distance of the pulling rope 14 into a proper rotation speed of the corresponding driving rod 584. The winding devices 586, 585 are used for winding or unwinding (winding/unwinding) corresponding strings 588, 589, and one ends of the strings 588, 589 are connected to the lower rail 55.
In this embodiment, the cords 569, 568 of the first transmission module 56 extend downwardly from the corresponding wire winding devices 565, 566 to suspend the middle rail 54, and the cords 589, 588 of the second transmission module 58 extend downwardly from the corresponding wire winding devices 585, 586 to suspend the lower rail 55. For example, when any one of the pull ropes 12, 14 in the first transmission module 56 and the second transmission module 58 drives the corresponding transmission rod 564, 584 to rotate through the speed changing device 562, 582, the winding device 565, 566 can be rotated synchronously to wind and unwind the corresponding rope 569, 568 by the action of the speed changing device 562 and the transmission rod 564, so as to drive the middle rail 54 in the two-stage curtain 51 to lift and open the upper curtain 51A; similarly, by the action of the speed changing device 582 and the transmission rod 584, the winding devices 585 and 586 can be synchronously rotated to wind and unwind the corresponding ropes 589 and 588, so as to drive the lower rail 55 in the two-stage curtain body 51 to lift and open and close the lower curtain 51B. By the above-described operation, the basic functions of controlling the opening and closing of the upper curtain 51A and the lower curtain 51B of the two-stage curtain 51 are achieved.
In the present embodiment, the window covering limiting device 100 is connected between the first transmission module 56 and the second transmission module 58. In detail, please refer to fig. 4 and fig. 5. The window curtain limiting device 100 includes a first rotating member 110, a second rotating member 120, and a fixing base 130. The first rotating member 110 is rotatably disposed inside the second rotating member 120, and the fixing base 130 is rotatably disposed outside the second rotating member 120. The rod 5642 of the transmission rod 564 in the first transmission module 56 is connected to the hole 116 of the first rotating member 110, so that the transmission rod 564 is linked to the first rotating member 110. The rod 5842 of the transmission rod 584 in the second transmission module 58 is connected to the hole 129 of the second rotating member 120, so that the transmission rod 584 is linked to the second rotating member 120.
In the present embodiment, the first transmission module 56, the second transmission module 58, the first rotating member 110, the second rotating member 120 and the fixed seat 130 are located on the same axis L in the curtain rail 52, that is, the first transmission module 56, the second transmission module 58, the first rotating member 110, the second rotating member 120 and the fixed seat 130 are coaxial, wherein the first transmission module 56 and the second transmission module 58 are disposed at two sides in the accommodating groove 522 of the curtain rail 52, and the first rotating member 110, the second rotating member 120 and the fixed seat 130 are located between the first transmission module 56 and the second transmission module 58.
In this embodiment, the first rotating member 110 and the second rotating member 120 are in a male-female matching structure, and the first rotating member 110 and the second rotating member 120 are rotatably screwed with each other; the second rotating member 120 and the fixed seat 130 are in another male-female matching structure, the second rotating member 120 and the fixed seat 130 are rotatably screwed with each other to form a combination of a group of male members, female members, male members and female members, wherein the second rotating member 120 has a structure of female members and male members.
In detail, the first rotating member 110 includes a first head 112 and a first joint 114, the diameter of the first head 112 is larger than that of the first joint 114, the first joint 114 connects the first head 112, the first head 112 has two opposite end surfaces 112A and 112B, the first joint 114 is formed by extending the end surface 112B of the first head 112 along the axis L, and the first joint 114 is a bolt or a threaded column, and the surface of the first joint 114 has external threads. The first head 112 has a hole 116, the hole 116 is perforated from the surface of the end face 112A and penetrates beyond the end face 112B along the axis L, the hole 116 is used for the rod 5642 of the transmission rod 564 in the first transmission module 56 to penetrate, and the rod 5642 of the transmission rod 564 is fixed to the hole 116.
On the other hand, the first connecting portion 114 further has an inner hole 118, and the inner hole 118 penetrates through the first connecting portion 114 along the axis L, the inner hole 118 is connected to the hole 116, and the size of the inner hole 118 is larger than the size of the hole 116. It should be noted that, when the rod 5642 of the transmission rod 564 passes through and is disposed in the hole 116, one end of the rod 5642 may be located inside the inner hole 118 depending on the actual length, but the rod 5642 of the present embodiment is a square rod, and cooperates with the square hole of the hole 116, so that the rod 5642 of the transmission rod 564 is restrained in the hole 116, and the first rotating member 110 can rotate along the axis L along with the transmission rod 564 when the transmission rod 564 rotates.
In the present embodiment, the second rotating member 120 includes a second head 122 and a second connecting portion 124, the diameter of the second head 122 is larger than that of the second connecting portion 124, the second connecting portion 124 is connected to the second head 122, the second head 122 has two opposite end surfaces 122A and 122B, the second connecting portion 124 is formed by extending the end surface 122B of the second head 122 along the axis L, and the second connecting portion 124 is a bolt or a threaded column, and the surface thereof has external threads. The second head 122 has a screw hole 126, and the screw hole 126 is perforated from the surface of the end face 122A and penetrates the outside of the end face 122B along the axis L. The second coupling portion 124 has a screw hole 128 perforated along the axis L and partially penetrating into the second head 122, the screw holes 126 and 128 are in communication with each other, the screw holes 126 and 128 are sized to correspond to the size of the first coupling portion 114 so that the first coupling portion 114 can be positioned inside the screw holes 126 and 128, more importantly, the external threads on the surface of the first coupling portion 114 can be engaged with the internal threads inside the screw holes 126 and 128, that is, the first coupling portion 114 can be screwed into the screw holes 126 and 128 so that the first coupling portion 114 can move inside the screw holes 126 and 128 in a rotating (screwing-in or screwing-out) manner, thereby forming a structure in which the male member (the first coupling portion 114 in the first rotating member 110) is engaged with the male member (the screw holes 126 and 128 in the second rotating member 120). Further, since the first coupling portion 114 can move within the screw holes 126, 128 in a rotating manner, a first rotation stroke (e.g., the first rotation stroke P1 of fig. 6B) can be provided between the first head 112 of the first rotating member 110 and the second head 122 of the second rotating member 120.
In addition, the second connecting portion 124 further has a hole 129, and the hole 129 is perforated along the axis L and partially penetrates through the second connecting portion 124, and the hole 129 is connected to the screw hole 128, and the size of the hole 129 is smaller than the screw hole 128. Similarly, it should be noted that, when the rod 5842 of the transmission rod 584 passes through and is disposed in the hole 129, one end of the rod 5842 may be located inside the inner screw hole 128 depending on the actual length, but the rod 5842 of the embodiment is a square rod, and cooperates with the square hole of the hole 129, so that the rod 5842 of the transmission rod 584 is constrained in the hole 129, and the second rotating member 120 can rotate along the axis L along with the transmission rod 584 when the transmission rod 584 rotates.
In an embodiment, the end face 112B of the first head 112 in the first rotating member 110 faces the end face 122A of the second head 122 in the second rotating member 120, and the size of the end face 112B of the first head 112 in the first rotating member 110 is equal to the size of the end face 122A of the second head 122 in the second rotating member 120 (as shown in fig. 5), so that when the first rotating member 110 or the second rotating member 120 rotates to screw with each other, the size of the end face 112B of the first head 112 is the same as the size of the end face 122A of the second head 122, so that the forces of the end face 112B of the first head 112 and the end face 122A of the second head 122 can be equally distributed to reduce the occurrence of damage to the rotating member (refer to the first rotating member 110 or the second rotating member 120) due to displacement.
In this embodiment, the fixing base body 130 is disposed in the accommodating groove 522 of the curtain rail 52, the fixing base body 130 includes a through hole 132, the through hole 132 is used for the second connecting portion 124 in the second rotating member 120 to pass through, the size of the second connecting portion 124 corresponds to the size of the through hole 132, an internal thread 134 is disposed in the through hole 132, and an external thread on the surface of the second connecting portion 124 can be matched with the internal thread 134 in the through hole 132, so that the second connecting portion 124 can move in the through hole 132 in a rotating (screwing-in or screwing-out) manner, so as to form a structure of male-female matching between a male member (the second connecting portion 124 in the second rotating member 120) and a female member (the through hole 132 in the fixing base body 130). In addition, since the second coupling portion 124 can move in the through hole 132 in a rotating manner, a second rotation stroke (e.g. the second rotation stroke P2 of fig. 6A) can be provided between the fixing base 130 and the second head 122 of the second rotating member 120.
Therefore, the first rotating member 110 and the second rotating member 120 of the present embodiment are in a male-female matching relationship, the second rotating member 120 and the fixing base 130 are in another male-female matching relationship, so as to form a combination of a male member, a female member, a male member and a female member, wherein the second rotating member 120 can serve as a female member (the screw holes 126 and 128) and a male member (the second combination portion 124). In an embodiment, the fixed base 130 is movably disposed in the accommodating groove 522 of the curtain rail 52, so that the first rotating member 110, the second rotating member 120 and the fixed base 130 can move left and right along the axis L. In another embodiment, the fixing base 130 is fixed in the accommodating groove 522 of the curtain rail 52, and the first rotating member 110 and the second rotating member 120 can move left and right along the axis L.
In an embodiment, the end surface 122A of the second rotating member 120 and the end surface 112B of the first rotating member 110 further include a stop portion, respectively, so that when the first rotating member 110 rotates relative to the second rotating member 120, or the second rotating member 120 rotates relative to the first rotating member 110, the stop portion of the first rotating member 110 and the stop portion of the second rotating member 120 can be mutually locked to limit the rotation stroke of the first rotating member 110 and the second rotating member 120, and simultaneously limit the stroke of the winding device 566, 565, 586, 585 to synchronously rotate to retract the corresponding cord 568, 569, 588, 589, so as to control the closing and opening positions of the curtain body 51 of the curtain 50. It should be noted that, the type of the stop portion is not limited, for example, in fig. 5 or fig. 6B, a stop portion 121 is disposed on the end face 122A of the second head 122 of the second rotating member 120, for example, a bump is disposed on the stop portion 121, which is formed by protruding outward from the surface of the end face 122A, and a stop portion 111 is disposed on the end face 112B of the first head 112 of the first rotating member 110 correspondingly to the end face 112B of the first head 112 of the first rotating member 110, as shown in fig. 6B, and the stop portion 111 is formed by protruding outward from the surface of the end face 112B, for example, so as to achieve the above-mentioned function of mutual fastening. Similarly, as shown in fig. 5 or fig. 6A, the surface 130A of the fixed base 130 may be provided with a stop portion 131, and the end surface 122B of the second head 122 of the second rotating member 120 is correspondingly provided with a stop portion 123, so that when the second rotating member 120 rotates relative to the fixed base 130, the stop portions 131 and 123 can achieve a mutually fastening function, so as to limit the rotation stroke of the second rotating member 120 and the fixed base 130.
The operation of the window covering of the present embodiment will be described below with reference to fig. 6A to 6C.
Fig. 6A is a schematic view of an embodiment of a curtain limiter of the present invention. Please refer to fig. 6A and fig. 1. Fig. 6A shows a state that both the upper curtain 51A and the lower curtain 51B shown in fig. 1 are retracted, so that both sides of the middle rail 54 are contacted to the bottom side of the curtain rail 52 and the top side of the lower rail 55, that is, the lower rail 55 is moved and contacted to the bottom side of the middle rail 54 to retract the lower curtain 51B; and the middle rail 54 is moved and contacted to the bottom side of the curtain rail 52 to receive the upper curtain 51A. In the state that the upper curtain 51A and the lower curtain 51B are both retracted, the first rotating member 110 and the second rotating member 120 are respectively located at an upper limit, and the intermediate rail 54 is moved to the bottom side of the curtain rail 52 as mentioned above, so that the intermediate rail 54 is blocked by the curtain rail 52 and cannot be lifted any further, and the first head 112 in the first rotating member 110 cannot be moved to the left (herein, refer to the direction away from the second rotating member 120 as shown in fig. 6A). On the other hand, the second head 122 of the second rotating member 120 is moved and contacts the first head 112 of the first rotating member 110, so that the second head 122 of the second rotating member 120 cannot move further to the left (in this case, toward the first rotating member 110 as shown in fig. 6A), and further, the lower rail 55 cannot further rise, that is, by means of the curtain limiting device 100 of the present embodiment, the lower rail 55 can be prevented from further rising and pushing against the middle rail 54.
In the present embodiment, as shown in the state of both the upper curtain 51A and the lower curtain 51B of fig. 6A being folded, the second rotating member 120 is located between the first rotating member 110 and the fixed seat 130, the movable travel of the second rotating member 120 is limited by the first rotating member 110 and the fixed seat 130, i.e. the movable upper limit position of the second rotating member 120 is defined by the position of the first rotating member 110, and further, the present embodiment further locks the stop portion 121 of the second rotating member 120 and the stop portion 111 of the first rotating member 110 to limit the mutual rotation of the first rotating member 110 and the second rotating member 120. The movable lower limit of the second rotating member 120 is defined by the position of the fixed seat 130. Further, in the present embodiment, the stop portion 123 of the second rotating member 120 and the stop portion 131 of the fixed base 130 are further fastened to each other, so as to limit the second rotating member 120 and the fixed base 130 from rotating relative to each other.
In the present embodiment, when the second rotating member 120 is moved to the upper limit position, as shown in fig. 6A, a second rotation stroke P2 may be provided between the fixed base body 130 and the second head 122 of the second rotating member 120, and the distance between the second rotation stroke P2 and the surface 130A of the fixed base body 130 calculated by the end surface 122B of the second head 122 represents the distance between the second rotating member 120 and the fixed base body 130.
In the present embodiment, when the pull cord 14 drives the transmission rod 584 to rotate in a second direction G2 through the speed-changing device 582, the winding devices 585, 586 are used for winding the corresponding cord 589, 588, so that the lower rail 55 descends in the descending direction L1, and the lower curtain 51B is unfolded for a distance. On the other hand, the lever body 5842 of the transmission rod 584 is coupled to the second rotating member 120, so that the second rotating member 120 rotates in the second direction G2 relative to the first rotating member 110, the second head 122 of the second rotating member 120 moves along the axis L in a direction away from the first head 112 of the first rotating member 110, and at the same time, the second coupling portion 124 of the second rotating member 120 also moves rotationally relative to the fixed seat body 130, so that the second head 122 of the second rotating member 120 moves along the axis L in a direction towards the fixed seat body 130, and further changes the distance of the second rotating stroke P2. When the second rotating member 120 is continuously rotated to the lower limit position as shown in fig. 6B, a first rotating stroke P1 is provided between the first rotating member 110 and the second rotating member 120 as compared with the second rotating stroke P2 of fig. 6A.
In addition, since the second rotating member 120 is blocked by the fixed seat 130 and cannot continue to rotate, the pull cord 14 cannot continue to be pulled, and the lower rail 55 is at the lower limit position, i.e. the maximum distance for the lower curtain 51B to be unfolded. For example, the maximum travel distance of the lower rail 55 shown in fig. 1 is the lower rail travel distance D2, which is the distance from the top side of the lower rail 55 to the bottom side of the middle rail 54. In contrast to the travel ranges of fig. 6A to 6B, the second rotation range P2 of fig. 6B corresponds to the lower rail travel range D2 of fig. 1.
Conversely, when the lower curtain 51B is to be rolled, the pull cord 14 drives the transmission rod 584 to rotate in a first direction G1 via the speed-changing device 582, and the winding devices 585 and 586 are used to wind the corresponding wires 589 and 588 to raise the lower rail 55 in the raising direction L2, at this time, the raising distance of the lower rail 55 is limited within the range of the second rotation travel P2, in other words, the second rotation travel P2 of the curtain limiting device 100 can limit the movement travel of the lower rail 55, and the distance of the second rotation travel P2 is determined based on the raising or lowering movement travel of the lower rail 55. When the lower rail 55 is moved to the bottom side of the middle rail 54, the second rotating member 120 is rotated to the upper limit position and cannot be rotated continuously, so that the pull rope 14 cannot be pulled continuously, and the lower rail 55 is prevented from rising continuously again to push the middle rail 54, thereby preventing the wires 569 and 568 pulled to the middle rail 54, and further preventing the wires 569 and 568 of the middle rail 54 from being overlapped and wound subsequently due to the loose state.
In this embodiment, as shown in fig. 6B, for example, if the second rotating member 120 is rotated in the above-mentioned process, a first rotating stroke P1 is provided between the first rotating member 110 and the second rotating member 120, and the movable lower limit of the first rotating member 110 is defined by the position of the second rotating member 120. On the other hand, the movable upper limit of the first rotating member 110 is defined according to the position where the middle rail 54 is moved to the bottom side of the curtain rail 52, that is, the middle rail 54 is blocked by the curtain rail 52 and cannot further rise, and at this time, the corresponding position where the first rotating member 110 cannot further move to the left (refer to the direction of moving the first rotating member 110 away from the second rotating member 120 as shown in fig. 6B) defines the upper limit.
In this embodiment, when the pull cord 12 rotates the transmission rod 564 in the second direction G2 through the speed-changing device 562, the winding devices 565, 566 are used to wind the corresponding cord 569, 568, so that the middle rail 54 descends in the descending direction L1, such that the upper curtain 51A is unfolded by a distance limited by the first rotation stroke P1 formed between the first rotating member 110 and the second rotating member 120. On the other hand, the lever 5642 of the transmission rod 564 is coupled to the first rotating member 110, so that the first rotating member 110 simultaneously rotates in the second direction G2 relative to the second rotating member 120, and the first head 112 of the first rotating member 110 moves along the axis L in the direction of the second head 122 of the second rotating member 120, thereby changing the distance of the first rotating stroke P1. When the first rotating member 110 is continuously rotated to the lower limit position as shown in fig. 6C, the first rotating member 110 is blocked by the second rotating member 120 and cannot continue to rotate, so that the pull cord 12 cannot continue to be pulled, and the middle rail 54 is at the lower limit position, i.e. the maximum distance for the upper curtain 51A to be unfolded. For example, the maximum travel of the center rail 54 as shown in fig. 1 is the center rail travel D1, which is the distance from the bottom side of the curtain rail 52 to the top side of the center rail 54. In contrast to the movement strokes of fig. 6B to 6C, the first rotation stroke P1 of fig. 6B corresponds to the middle rail movement stroke D1 of fig. 1. In addition, at this time, the pulling rope 12 cannot be pulled continuously, so that the middle rail 54 is at the lower limit position and cannot descend continuously, so that the phenomenon that the middle rail 54 descends continuously to idle the threads 569, 568 in the coiling devices 565, 566 can be avoided, and further the overlapping and winding of the threads 569, 568 can be avoided.
Conversely, when the driving rod 564 is driven to rotate in the first direction G1 by the speed-changing device 562 through the pull cord 12 to wind up the upper curtain 51A, the winding devices 565 and 566 are used for winding up the corresponding wires 569 and 568, so that the middle rail 54 is lifted up in the lifting direction L2, the rod body 5642 of the driving rod 564 is linked to the first rotating member 110, so that the first rotating member 110 rotates in the first direction G1 relative to the second rotating member 120 at the same time, the first head 112 of the first rotating member 110 moves along the axis L in a direction away from the second head 122 of the second rotating member 120, at this time, the lifting distance of the middle rail 54 is limited within the range of the first rotating stroke P1, more specifically, the middle rail 54 is moved to the bottom side of the curtain rail 52, and is blocked by the curtain rail 52, and cannot be lifted up continuously, the first rotating member 110 cannot be rotated again and is at the upper limit position of the first rotating member 110, so that the winding devices 565 and 565 cannot be continuously wound up the corresponding wires 569 and 565 are not wound up continuously, and the problem of the winding wires 568 and 568 is avoided. As can be seen from the above, the first rotation travel P1 of the curtain limiting device 100 can limit the movement travel of the middle rail 54, and the distance of the first rotation travel P1 is determined based on the ascending or descending movement travel of the middle rail 54.
In summary, the present invention can limit and control the lifting travel of the middle rail and the lower rail of the curtain by the curtain limiting device, so as to prevent the overlapping and winding of the rope wires on the rope wires in the winding device.
In addition, the first rotating member and the second rotating member are of a male-female matching structure, so that the first rotating member and the second rotating member can be in rotary screwing with each other, and the second rotating member and the fixed seat body are of another male-female matching structure, so that the second rotating member and the fixed seat body can be in rotary screwing with each other, and a combination of a male member, a female member, a male member and a female member is formed.
In addition, the size of the first head part in the first rotating part in the curtain limiting device is equal to the size of the second head part in the second rotating part, so that when the first rotating part or the second rotating part rotates to be screwed with each other, the size of the first head part is the same as the size of the second head part, stress on the mutually contacted end surfaces of the first head part and the second head part can be evenly distributed, and damage of the rotating part caused by displacement can be reduced.
The above description is illustrative of the invention and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A window covering, comprising:
a curtain rail;
a middle rail;
a lower rail, wherein the middle rail is arranged between the curtain rail and the lower rail;
the curtain body is arranged between the curtain rail and the lower rail and comprises an upper curtain and a lower curtain, wherein the upper curtain is connected between the curtain rail and the middle rail, and the lower curtain is connected between the middle rail and the lower rail;
the first transmission module and the second transmission module are respectively arranged in the curtain rail, the first transmission module controls the middle rail to ascend or descend, the second transmission module controls the lower rail to ascend or descend, the first transmission module and the second transmission module respectively comprise a speed changing device, a transmission rod and a pair of wire coiling devices, the transmission rod is linked with the speed changing device and the pair of wire coiling devices, the speed changing device of the first transmission module and the speed changing device of the second transmission module are respectively correspondingly connected with a pull rope, the pair of wire coiling devices of the first transmission module and the pair of wire coiling devices of the second transmission module are respectively connected with a wire, one end of each wire of the pair of wire coiling devices of the first transmission module is connected with the middle rail, and one end of each wire of the pair of wire coiling devices of the second transmission module is connected with the lower rail; and
The curtain limiting device is arranged in the curtain rail, the curtain limiting device is connected between the first transmission module and the second transmission module, and the first transmission module, the second transmission module and the curtain limiting device are positioned on an axis in the curtain rail, and the curtain limiting device comprises:
the first rotating piece is linked with the transmission rod in the first transmission module and comprises a first head part and a first combining part, the first combining part is connected with the first head part, and the surface of the first combining part is provided with an external thread;
the second rotating piece is rotatably arranged in the second rotating piece and is linked with the transmission rod in the second transmission module, the first rotating piece and the second rotating piece are of a male-female matched structure, the second rotating piece comprises a second head part, a second combining part and a screw hole, the second combining part is connected with the second head part, the first head part faces the second head part, the external thread on the surface of the first combining part can be matched with the internal thread in the screw hole, so that the first combining part can move in the screw hole in a rotating mode, a first rotating stroke is formed between the first rotating piece and the second rotating piece, and the surface of the second combining part is provided with the external thread; a kind of electronic device with high-pressure air-conditioning system
The fixed seat body is rotatably arranged outside the second rotating piece, the second rotating piece and the fixed seat body are of another male-female matched structure, the fixed seat body comprises a through hole, the through hole is used for the second combining part in the second rotating piece to pass through, the external thread on the surface of the second combining part can be matched with the internal thread in the through hole, so that the second combining part can move in the through hole in a rotating mode, and a second rotating stroke is formed between the fixed seat body and the second rotating piece.
2. The window covering of claim 1, wherein: the first rotating member, the second rotating member and the fixed seat are respectively located on the axis.
3. The window covering of claim 1, wherein: an end face of the first head faces an end face of the second head, and a dimension of the end face of the first head is equal to a dimension of the end face of the second head.
4. The window covering of claim 1, wherein: the first rotating member and the second rotating member respectively comprise a stop part, and the stop parts are mutually clamped to limit the first rotating member and the second rotating member to mutually rotate.
5. The window covering of claim 1, wherein: the second rotating piece and the fixed seat body respectively comprise a stop part, and the second rotating piece and the fixed seat body are limited to rotate mutually by means of the mutual clamping of the stop parts.
6. A curtain stop device for a curtain, its characterized in that: the curtain comprises a curtain rail, a middle rail, a lower rail, a curtain body, a first transmission module and a second transmission module, wherein the middle rail is arranged between the curtain rail and the lower rail, the curtain body comprises an upper curtain and a lower curtain, the upper curtain is connected between the curtain rail and the middle rail, the lower curtain is connected between the middle rail and the lower rail, the first transmission module and the second transmission module are respectively arranged in the curtain rail, the first transmission module controls the middle rail to ascend or descend, the second transmission module controls the lower rail to ascend or descend, the first transmission module and the second transmission module respectively comprise a speed changing device, a transmission rod and a pair of winding devices, the transmission rod is linked with the speed changing device and the pair of winding devices, the speed changing device of the first transmission module and the speed changing device of the second transmission module are respectively correspondingly connected with one pull rope, the pair of winding devices of the first transmission module and the second transmission module are respectively connected with one end of the winding wire of the first transmission module and one end of the first rope and the second transmission module and the first end of the first rope and the second transmission module are respectively arranged in the curtain rail, the transmission module and the first transmission module and the second transmission module are respectively arranged in the curtain are respectively, the transmission module and the limit device is arranged in the one end of the curtain, and the transmission module is located in the one end, and the transmission module is located in the one or between the transmission and the two end and the transmission device and the limit device:
The first rotating piece is used for being linked with the transmission rod in the first transmission module and comprises a first head part and a first combining part, the first combining part is connected with the first head part, and the surface of the first combining part is provided with an external thread;
the second rotating piece is rotatably arranged in the second rotating piece and is used for linking the transmission rod in the second transmission module, the first rotating piece and the second rotating piece are of a male-female matched structure, the second rotating piece comprises a second head part, a second combining part and a screw hole, the second combining part is connected with the second head part, the first head part faces the second head part, the external thread on the surface of the first combining part can be matched with the internal thread in the screw hole, so that the first combining part can move in the screw hole in a rotating mode, a first rotating stroke is formed between the first rotating piece and the second rotating piece, and the surface of the second combining part is provided with the external thread; and
the fixed seat body is rotatably arranged outside the second rotating piece, the second rotating piece and the fixed seat body are of another male-female matched structure, the fixed seat body comprises a through hole, the through hole is used for the second combining part in the second rotating piece to pass through, the external thread on the surface of the second combining part can be matched with the internal thread in the through hole, so that the second combining part can move in the through hole in a rotating mode, and a second rotating stroke is formed between the fixed seat body and the second rotating piece.
7. The window covering spacing device of claim 6, wherein: the first rotating member, the second rotating member and the fixed seat are respectively located on the axis.
8. The window covering spacing device of claim 6, wherein: an end face of the first head faces an end face of the second head, and a dimension of the end face of the first head is equal to a dimension of the end face of the second head.
9. The window covering spacing device of claim 6, wherein: the first rotating member and the second rotating member respectively comprise a stop part, and the stop parts are mutually clamped to limit the first rotating member and the second rotating member to mutually rotate.
10. The window covering spacing device of claim 6, wherein: the second rotating piece and the fixed seat body respectively comprise a stop part, and the second rotating piece and the fixed seat body are limited to rotate mutually by means of the mutual clamping of the stop parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109125751A TWI722950B (en) | 2020-07-30 | 2020-07-30 | Curtain and position limiting device thereof |
| TW109125751 | 2020-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114059906A CN114059906A (en) | 2022-02-18 |
| CN114059906B true CN114059906B (en) | 2023-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110662435.2A Active CN114059906B (en) | 2020-07-30 | 2021-06-15 | Curtain and curtain limiting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114059906B (en) |
| TW (1) | TWI722950B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306287B (en) * | 2021-05-04 | 2023-12-08 | 德侑股份有限公司 | Window shade and actuating system thereof |
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| CN202287694U (en) * | 2011-10-31 | 2012-07-04 | 汕头市荣达新材料有限公司 | Day-and-night folding curtain |
| TWM509002U (en) * | 2015-01-20 | 2015-09-21 | Xin Zuan Green Energy Co Ltd | Two-sectional curtain with light guide effect |
| TWI692575B (en) * | 2019-03-22 | 2020-05-01 | 范富美 | Curtain track with double winding device |
| TWM604599U (en) * | 2020-07-30 | 2020-12-01 | 達美簾業有限公司 | Curtain and curtain limiting device |
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|---|---|---|---|---|
| CN2421911Y (en) * | 2000-04-20 | 2001-03-07 | 陶秀枝 | Adjustable device for curtain |
| JP2004108045A (en) * | 2002-09-19 | 2004-04-08 | Okuho Sogo Kogyo Kofun Yugenkoshi | Divided stage blind |
| CN2852875Y (en) * | 2005-08-02 | 2007-01-03 | 陈英文 | Electric curtain rod |
| CN1919117A (en) * | 2006-08-25 | 2007-02-28 | 孙宜培 | Rolling rope of electric rolling screen and run distance caging device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114059906A (en) | 2022-02-18 |
| TW202203821A (en) | 2022-02-01 |
| TWI722950B (en) | 2021-03-21 |
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