CN201734472U - Improved curtain device - Google Patents

Abstract

A cordless curtain device comprises a curtain box, wherein the curtain box comprises a pulley fixedly arranged on the curtain box and a shaft coupled with the pulley, and the pulley is arranged at one end of the shaft. The cordless curtain device also comprises a curtain frame fixedly arranged at one end of the curtain box and a pull curtain, one end of the pull curtain is fixedly connected with the shaft, and the other end of the pull curtain is fixedly connected with the bottom of the curtain frame. In addition, the cordless curtain device also comprises a plurality of detachable cross rods matched with the rear surface of the curtain frame and a lifting chain capable of being meshed with the pulley. The curtain is arranged between the plurality of cross rods and the rear surface of the curtain rod, and the curtain rod can be lifted or lowered along with the movement of the lifting chain. When the utility model is used for various curtains, the curtain rope of a typical curtain can be prevented from twining people, and the safety of using the curtain is improved; can be widely designed into various window curtains according to proper functions, especially when the window curtain is made of heavy materials such as bamboo or wood.

Description

An Improved Curtain Device

technical field

The utility model relates to a general window ornament, in particular to an improved lifting device for Roman blinds.

Background technique

Window coverings, typically blackout curtains or blinds, provide privacy for indoor activities by blocking sunlight from entering an area by horizontal or vertical coverings. These coverings are generally in the form of slats or pleats and may hang vertically for vertical coverings or extend horizontally for horizontal coverings. Many window coverings also include lower rails.

Typically, in order to raise or lower the lower rung relative to the ground, it is necessary to extend a looped cord from a point on the lower rung along the entire length of the slat into the window covering. Many shades often provide two or more cords to smoothly raise or lower the shade, by stretching or loosening the accessible portion of the cord to raise or lower the shade. The inventions of US Patent Nos. 5,577,543, 6,044,523, 5,562,140 and 6,431,248 focus on minimizing or completely eliminating the possibility of curtain cord entanglement. However, due to the weight of the curtains, the curtains are made of very thick material, which adds to the challenge of minimizing the possibility of the curtain cord entanglement when designing the release cord. Accordingly, there remains a need for a device that reduces the hazards associated with curtain cords for window coverings.

Utility model content

The purpose of the utility model is to provide an improved curtain device, which can make people get entangled by the curtain when using the curtain, and improve the safety of using the curtain.

In order to achieve the above object, the utility model provides a cordless curtain device, which comprises a curtain box, a pulley arranged on the curtain box and a shaft matched with the pulley, and the pulley is connected to one end of the shaft. The cordless curtain device also includes a curtain frame fixedly arranged at one end of the curtain box and a curtain with one end fixedly connected with the shaft and the other end fixedly connected with the bottom of the curtain frame. In addition, the cordless curtain device also includes a plurality of detachable cross bars cooperating with the rear surface of the curtain frame and a lifting chain that can engage with the pulley. The curtain is arranged between the plurality of cross bars and the rear surface of the curtain frame, and the curtain frame can be raised or lowered with the movement of the lifting chain.

In the above-mentioned cordless curtain device, when the received pulling force is close to its rated pulling force, the lifting chain will break.

In the above cordless curtain device, at least a part of the pulley will be separated from the curtain box when the received tension is close to its rated tension.

In the above cordless curtain device, at least a part of the pulley will be separated from the curtain box when the received tension is close to its rated tension.

The utility model also provides a blind cord curtain device, which comprises a curtain box and a pulley arranged on the curtain box. The cordless curtain device also includes a curtain frame fixedly arranged at one end of the curtain box and a curtain with one end fixedly connected with the shaft and the other end fixedly connected with the bottom of the curtain frame. The curtain comprises a number of curtain cords embedded therein. In addition, the cordless curtain device also includes several detachable cross bars cooperating with the rear surface of the curtain frame, and the curtain is arranged between the several cross bars and the rear surface of the curtain frame. The curtain rope can cooperate with the pulley, and the curtain frame can be raised or lowered along with the movement of the curtain rope.

Compared with the prior art, the utility model has the advantage that the utility model can be realized through different implementation modes, and when it is used for various curtains, it can prevent the curtain cords of typical curtains from entanglement, and improve the safety of using the curtains ; The utility model can be widely designed into various curtain designs according to suitable functions, especially when the curtains are made of heavy materials such as bamboo or wood.

Description of drawings

Fig. 1 is the rear view of the curtain comprising the cordless Roman shade device of one of the embodiments provided by the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the rear view of the curtain including the hidden rope Roman blind device of the second embodiment provided by the utility model;

Fig. 4 is a left side view of Fig. 3 .

Detailed ways

An improved automatic curtain lifting device for curtains, such as a cordless curtain device 10, will be illustrated below with reference to FIGS. 1 and 2 . The cordless curtain device 10 includes a curtain box 12 , a curtain frame 14 , a curtain 16 , a plurality of cross bars 18 and a lifting chain 20 . The curtain box 12 includes screw holes for screwing the curtain box 12 to the wall. In other embodiments, the window covering 12 can be designed to be fixed on the wall by a separate mounting mechanism. The curtain box 12 includes a detachable pulley 22 close to the curtain box 12, at least a part of the pulley 22 can be separated from the curtain box 12 by downward force. The curtain box 10 also includes a shaft cooperating with the pulley, and the pulley 22 is arranged at one end of the shaft.

The top of the curtain 16 is close to the axle, and its bottom is close to the rear surface of the curtain frame 14 bottom. The top of curtain frame 14 is close on the curtain box 12. The curtain 16 is disposed between the rear surface of the curtain frame 14 and several cross bars 18 , and extends upward from the bottom of the curtain frame 14 to the curtain box 12 .

The lifting chain 20 can cooperate with the pulley 22, so that the user can drive the shaft to rotate through the lifting chain 20, thereby raising or lowering the curtain frame 14. In a typical embodiment, the lift chain 20 is designed such that the lift chain 20 is susceptible to damage when a significant pulling force is applied thereto. In another embodiment, the lifting chain 20 can be coupled to a second pulley, limiting the degree of freedom of the lifting chain through the second point of contact. In addition, at least a portion of the pulley 22 is designed so that the lifting chain 20 can be separated and released by applying a nominal pulling force. These technical features individually and in combination can prevent the user from being entangled and injured by the lift chain 20 .

In an exemplary embodiment, at least a portion of the pulley 22 is designed to separate and release the lift chain 20 by applying a force of 3 pounds (1.36 kg), and the lift chain 20 is designed to release the lift chain 20 at 5 pounds (2.27 kg). ) is damaged when a pulling force is applied to it. In this embodiment, at least a portion of the pulley 22 is designed so that it will disengage from the entire arrangement before the lift chain 20 breaks. In other embodiments, the values of these forces may be different, and the force required to disengage the pulley 22 from the entire arrangement may exceed the force required to break the lift chain 20 .

The following illustrates an improved automatic curtain lifting device for curtains, such as the hidden cord curtain device 100 , with reference to FIGS. 3 and 4 . The hidden cord curtain device 100 includes a curtain box 112 , a curtain frame 114 , a curtain 116 , several cross bars 118 and at least one curtain cord 120 . The curtain box 112 includes screw holes for screwing the curtain box 112 to the wall. In other embodiments, the window covering 112 can be designed to be fixed on the wall by a separate mounting mechanism. The curtain box 112 includes a pulley 122 that can cooperate with the curtain cord 120 .

The top of the curtain 116 is close to the curtain box 112, and its bottom is close to the rear surface of the curtain frame 114 bottom. The top of the curtain frame 114 is also close to the curtain box 112. The curtain 116 is disposed between the rear surface of the curtain frame 114 and the plurality of cross bars 118 , extending upward from the bottom of the curtain frame 114 to the curtain box 112 . The curtain 116 includes a plurality of curtain grooves 122 for placing a plurality of curtain cords 120 . The end of the curtain cord 120 is close to the bottom of the curtain 116 . The curtain groove 122 prevents the curtain cord 120 from being exposed, thereby preventing the user from being entangled by the lifting chain 120 and being injured.

To raise or lower the shade frame 114 , a user may pull on the free end of the shade cord 120 . The pulley 122 also includes a locking mechanism that allows the user to determine whether the height of the curtain frame 114 meets the required standard.

In a typical embodiment, the cross bar 18 and the cross bar 118 closely attached to the curtain frame 14 and the curtain frame 114 are detachable, and the number of the cross bar 18 and the cross bar 118 can be changed by the user. In order to change the quantity and position of the cross bar 18 and the cross bar 118 , the user can customize according to the quantity and position of the folds corresponding to the raised position of the curtain frame 14 and the curtain frame 114 .

The phraseology and terminology used herein are to provide an understanding of the description of the embodiments. As used herein, the quantifiers "a", "one", etc. are defined as one or more than one. The phrase "at least one" as used herein is defined as one or more than one. The word "another" as used herein is defined as at least a second or more. As used herein, the terms "comprising" and/or "comprising" are defined as comprising (eg, public language).

Although the content of the present invention has been described in detail through the above preferred embodiments, various modifications and substitutions of the present invention will be obvious to those skilled in the art after reading the above content. In addition, many modifications to the utility model that can be adapted to special occasions or materials do not depart from the protection scope of the utility model. It is therefore to be understood that the invention is not limited to the embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. A cordless curtain device, characterized in that the device comprises: A curtain box; the curtain box includes a pulley fixedly arranged on the curtain box and a shaft matched with the pulley, and the pulley is arranged at one end of the shaft; a curtain frame fixedly arranged at one end of the curtain box; - a curtain with one end fixedly connected to the shaft and the other end fixedly connected to the bottom of the curtain frame; detachable rails cooperating with the rear surface of the curtain frame; and a lifting chain cooperable with the pulley, The curtain is arranged between the plurality of cross bars and the rear surface of the curtain frame, and the curtain frame can be raised or lowered with the movement of the lifting chain. 2. The cordless curtain device as claimed in claim 1, wherein said lifting chain breaks when the received tension approaches its rated tension. 3. The cordless window shade device as claimed in claim 1, wherein at least a part of said pulley will separate from said window shade box when the applied tension approaches its rated tension force. 4. The cordless window shade device as claimed in claim 2, wherein at least a part of said pulley will separate from said window shade box when the applied tension approaches its rated tension. 5. A hidden rope curtain device, characterized in that the device comprises: A curtain box; the curtain box includes a pulley fixedly arranged on the curtain box; a curtain frame fixedly arranged at one end of the curtain box; One end is fixedly connected to the curtain box, and the other end is fixedly connected to the bottom of the curtain frame, and the curtain includes a number of curtain ropes embedded in it; a plurality of detachable cross bars cooperating with the rear surface of the curtain frame; The curtain is arranged between the plurality of cross bars and the rear surface of the curtain frame; The curtain rope can cooperate with the pulley; The curtain frame can be raised or lowered along with the movement of the curtain rope.

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