Curtain system without pull rope
By setting up a rolling rope system and elastic parts in the curtain system, hovering and height adjustment of the curtain body is achieved, the dangers of pulling ropes and decoration problems are solved, and the aesthetics and convenience of the curtains are improved.
Patent Information
- Application Number
- CN202420303688.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-19
AI Technical Summary
The draw ropes in the existing curtain system are easy to wrap around the child's neck, and friction will occur when they hang down, affecting the aesthetics of the decoration. Users need to frequently draw ropes to coil and unfold the curtains.
Design a pull-free curtain system. By setting up a coiled rope system in the curtain box, including a coiler, a traction rope and a coil spring, the curtain body is hovered by elastic members, and the user can directly apply force to perform the curtain body. With closure and height adjustment, the board structure is easy to disassemble and install and beautify.
The curtain is hovered and independently controlled at any height, which facilitates light-shading and semi-shading switching, avoids the danger and friction problems of pulling ropes, and improves the aesthetics and convenience of curtains.
Smart Images
Figure CN222207724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of curtains, in particular to a cord-free curtain system. Background Art
[0002] There are several styles of curtain structures available on the market today, such as blinds, pleated curtains, Roman curtains, etc. They are mainly installed on doors and windows of homes to block sunlight and provide decoration. According to the needs of different consumers, the curtain fabrics on both sides generally require the use of multiple winding wheels to control the winding and unfolding of the curtain fabrics. However, it was found that the multiple winding wheels of the curtain fabrics are distributed in the guide groove inside the upper rail, so that multiple sets of pull cords between the multiple winding wheels are wound around each other, and the curtain body must be closed and unfolded by the pull cords. However, since the pull cords are in a coiled shape and fall at a height that is relatively high enough for children to reach, they can easily get entangled in the neck of children when they are playing, causing serious injuries such as suffocation. In addition, the pull cords will also cause friction and collision with the wall when they fall in the wind, which also affects the aesthetics of the decoration.
[0003] Therefore, a structure of a cord-free curtain has come out, which is mainly composed of an elastic mechanism installed inside the upper beam, and acting on the curtain body through a rolling bar and a traction rope. Since the elastic force of the elastic mechanism is designed according to the total weight of the curtain body, the elastic force and the weight of the curtain body can be maintained in a force balance state. Therefore, the user does not need to pull the rope at all, but only needs to apply force directly on the curtain body to easily fold or unfold the curtain at any height. Utility Model Content
[0004] In response to the problems in the related technology, the utility model proposes an improved cordless curtain with multiple shading states. Compared with the prior art, the external boards arranged thereon are convenient for disassembly and assembly and are beautiful as a whole. The beam structure is simple and scientific, and the elastic force of the elastic parts can be controlled and adjusted by adjusting the counterweight of the beam to meet the force balance state and keep the curtain stably suspended.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a cord-free curtain system, including a curtain box, a rope winding system arranged in the curtain box and a curtain cloth, the curtain cloth is connected to a counterweight beam and an intermediate beam, the rope winding system includes a plurality of rope winders, traction ropes and spring winders, the rope winders and spring winders are coaxially and circumferentially linked, one end of the traction rope is connected to the rope winder and the other end is respectively connected to the counterweight beam or the intermediate beam, which is used to apply the elastic tension of the spring winder to the counterweight beam or the intermediate beam, so that the counterweight beam and the intermediate beam are suspended in the height direction relative to the curtain box, the counterweight beam and the intermediate beam include an I-shaped plate with two slots and a counterweight groove, and a latching and disassembling plate is also provided thereon, and the curtain cloth is also provided with an insertion strip, which is used to connect and fix the end of the curtain cloth to the counterweight beam or the intermediate beam.
[0006] As a further configuration of the above scheme, curtains are respectively arranged between the counterweight beam and the middle beam, and between the middle beam and the curtain box, and the curtains include light-shielding honeycomb curtain pieces and light-transmitting honeycomb curtain pieces, and the counterweight beam and the middle beam are respectively independently provided with a set of the rope winding system.
[0007] As a further configuration of the above scheme, the elastic force of the spring coiler is smaller than the gravity of the curtain connected to the traction rope on the corresponding rope coiler plus the counterweight beam or the middle beam, and the elastic force of the spring coiler is greater than the gravity of the rope coiler, the traction rope and the curtain after the counterweight beam or the middle beam is lost.
[0008] As a further arrangement of the above scheme, the slot is provided with an opening facing outward, a strength plate is provided in the middle of the slot with two openings facing away from each other, and a counterweight groove is also provided between the strength plate and the slot, the slot and the counterweight groove are composed of the folded edge of the beam body and the strength plate, and the counterweight groove is used for the installation of the counterweight block rod.
[0009] As a further configuration of the above solution, the strength plate is further provided with a concave groove, and the groove is C-shaped for inserting the insert strip or sealing piece of the curtain fabric.
[0010] As a further configuration of the above scheme, the strap includes a hand strap block with anti-slip protrusions, and a fixed block that matches and snaps into place with the middle beam or the counterweight beam. The fixed block is C-shaped and has a snap-on hook that matches and snaps into place with the folded edge on the beam body of the middle beam or the counterweight beam.
[0011] As a further configuration of the above scheme, the folded edges of the slots on both sides of the middle beam or the counterweight beam are set as long sides and short sides, the snap-in hooks of the straps are correspondingly set with long slots and short slots, and the cooperation between the straps and the middle beam or the counterweight beam includes a loose snap-in connection of the long side snapping into the long slot and the short side snapping into the short slot, or a tight snap-in installation of the long side snapping into the short slot and the short side snapping into the long slot.
[0012] Beneficial effect: The curtain of the utility model is suspended in balance by setting an adjustment spring winder and a beam body. The curtain can be manually adjusted to hover at any height, and multiple winding rope systems are relatively independently arranged, so the curtain can be independently controlled in the unfolded state without interfering with each other, which is convenient for switching between shading and semi-shading. In addition, a strap that can be easily engaged and disassembled is also provided, and can be installed with a loose fit or a tight fit, which meets the user's usage needs, is convenient for the user to push and pull, and can maintain the aesthetics of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the curtain of the utility model.
[0014] Figure 2 It is a schematic diagram of the front structure of the utility model.
[0015] Figure 3 This is a diagram of the use status of the curtain of the utility model.
[0016] Figure 4 This is a diagram showing the changing state of the curtain in use according to the present invention.
[0017] Figure 5 It is a cross-sectional schematic diagram of the curtain of the present utility model.
[0018] Figure 6 For this utility model Figure 5 A partial enlarged view of the middle rigging installation area.
[0019] Figure 7 It is a schematic diagram of reverse installation of the butt board of the utility model.
[0020] Figure 8 It is a schematic diagram of the board structure of the utility model.
[0021] Figure numerals: 1. Rope winding system; 11. Rope winding device; 12. Traction rope; 13. Spring winding device; 2. Curtain cloth; 21. Insert strip; 22. Sealing piece; 28. Shading honeycomb curtain piece; 29. Transparent honeycomb curtain piece; 31. Counterweight beam; 32. Middle beam; 35. Folding edge; 351. Short side; 352. Long side; 36. Slot; 37. Strength plate; 371. Concave groove; 38. Counterweight groove; 6. Lap board; 61. Anti-slip protrusion; 62. Hand rest block; 63. Fixing block; 64. Snap-on hook; 641. Long groove; 642. Short groove; 9. Curtain box. DETAILED DESCRIPTION
[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0023] like Figure 1-8The embodiment shown in the figure is a cordless curtain system, comprising a curtain box 9, a cord winding system 1 arranged in the curtain box 9, and a curtain 2, characterized in that: the curtain 2 is connected to a counterweight beam 31 and an intermediate beam 32, the cord winding system 1 comprises a plurality of cord winding devices 11, a traction rope 12, and a spring winding device 13, the cord winding device 11 and the spring winding device 13 are coaxially and circumferentially linked, one end of the traction rope 12 is connected to the cord winding device 11, and the other end is respectively connected to the counterweight beam 31 or the intermediate beam 32, which is used to apply the elastic tension of the spring coiler 13 to the counterweight beam 31 or the middle beam 32, so that the counterweight beam 31 and the middle beam 32 are suspended in the height direction relative to the curtain box 9. The counterweight beam 31 and the middle beam 32 include an I-shaped plate with two slots 36 and a counterweight groove 38, on which a snap-fit and detachable strap 6 is also provided. The curtain 2 is also provided with an insertion strip 21, which is used to connect and fix the end of the curtain 2 to the counterweight beam 31 or the middle beam 32.
[0024] As a further configuration of the above scheme, curtain fabrics 2 are respectively arranged between the counterweight beam 31 and the middle beam 32, and between the middle beam 32 and the curtain box 9, and the curtain fabrics 2 include light-shielding honeycomb curtain pieces 28 and light-transmitting honeycomb curtain pieces 29, and the counterweight beam 31 and the middle beam 32 are respectively independently provided with a set of the rope winding system 1.
[0025] As a further configuration of the above scheme, the elastic force of the spring coiler 13 is smaller than the gravity of the curtain 2 connected to the traction rope 12 on the corresponding rope coiler 11 plus the counterweight beam 31 or the middle beam 32, and the elastic force of the spring coiler 13 is greater than the gravity after the rope coiler 11, the traction rope 12 and the curtain 2 lose the counterweight beam 31 or the middle beam 32.
[0026] As a further arrangement of the above scheme, the slot 36 is provided with an opening facing outward, a strength plate 37 is provided in the middle of the slot 36 with two openings facing away from each other, and a counterweight groove 38 is also provided between the strength plate 37 and the slot 36. The slot 36 and the counterweight groove 38 are composed of the folded edge 35 of the beam body and the strength plate 37, and the counterweight groove 38 is used for the installation of the counterweight block rod.
[0027] As a further configuration of the above solution, a concave groove 371 is further provided on the strength plate 37 , and the slot 36 is C-shaped for inserting the insert strip 21 or the sealing piece 22 of the curtain fabric 2 .
[0028] As a further configuration of the above scheme, the strap 6 includes a hand strap block 62 with an anti-slip protrusion 61, and a fixed block 63 that matches and snaps into the middle beam 32 or the counterweight beam 31. The fixed block 63 is C-shaped and has a snap hook 64, which matches and snaps into place with the folded edge 35 on the beam body of the middle beam 32 or the counterweight beam 31.
[0029] As a further configuration of the above scheme, the folded edges 35 of the slots 36 on both sides of the middle beam 32 or the counterweight beam 31 are set as long sides 352 and short sides 351, and the snap-in hooks 64 of the strap 6 are correspondingly provided with long grooves 641 and short grooves 642. The cooperation between the strap 6 and the middle beam 32 or the counterweight beam 31 includes a loose snap-in connection in which the long side 352 snaps into the long groove 641 and the short side 351 snaps into the short groove 642, or a tight snap-in installation in which the long side 352 snaps into the short groove 642 and the short side 351 snaps into the long groove 641.
[0030] like Figure 1-8 The present invention is a non-cord curtain system, comprising a curtain box 9, a cord-winding system 1 arranged in the curtain box 9, and a curtain 2. It is worth noting that the curtain 2 of the present invention can be provided with multiple sections according to the needs, including but not limited to the light-shielding honeycomb curtain piece 28 and the light-transmitting honeycomb curtain piece 29 of the present embodiment, and the middle beam 32 is connected between the two sections of the curtain 2, and the lower end of the curtain 2 is connected to the counterweight beam 31. The cord-winding system 1 of the present embodiment includes a plurality of cord-winding devices 11, a traction rope 12, and a spring-winding device 13, wherein the cord-winding device 11 and the spring-winding device 13 are coaxial and circumferential. The linkage setting is that one end of the traction rope 12 is connected to the rope reel 11 and the other end is respectively connected to the counterweight beam 31 or the middle beam 32, which is used to apply the elastic tension of the spring reel 13 to the counterweight beam 31 or the middle beam 32, so that the counterweight beam 31 and the middle beam 32 are suspended in the height direction relative to the curtain box 9. There is one point to note here. The connection and coordination between the rope reel 11, traction rope 12 and spring reel 13 of each set of rope reel system 1 and the corresponding counterweight beam 31 or the middle beam 32 are relatively independent, that is, the traction rope 12 of a set of rope reel system 1 is only connected to one counterweight beam 31 or the middle beam 32. The intermediate beam 32 has a cooperation relationship with other curtains 2, counterweight beam 31 or middle beam 32 that penetrates and does not interfere. In addition, the rope winding system 1 also includes a setting that the elastic force of the spring coiler 13 is smaller than the gravity of the curtain 2 connected to the traction rope 12 on the corresponding rope winding device 11 plus the counterweight beam 31 or middle beam 32, and the elastic force of the spring coiler 13 is greater than the gravity of the rope winding device 11, the traction rope 12 and the curtain 2 after losing the counterweight beam 31 or middle beam 32. The purpose of this setting is to achieve that, without the influence of external force, the elastic force of the spring coiler 13 is smaller than the gravity of the curtain 2 connected to the traction rope 12 plus the counterweight beam 31 or middle beam 32. The weight of the heavy beam 31 or the middle beam 32, therefore, the spring coiler 13 will not automatically reel in the curtain 2 with the weight of the beam body, and the weight of the curtain 2 with the beam body is less than the elastic threshold of the spring coiler 13, therefore, the beam body will not directly unfold the curtain 2 based on its own gravity, and keep the beam body suspended in the height direction at will. However, once the relative balance between the two is destroyed by external force, that is, the gravity of the beam body is lost, the spring coiler 13 can reel in the traction rope 12 based on its own elastic reeling force, and store and compress the curtain 2. The unfolded use state includes Figure 3-4 .
[0031] The counterweight beam 31 and the middle beam 32 of this embodiment are arranged in the form of an I-shaped plate, on which a detachable strap 6 is arranged. The curtain 2 is also provided with an insert 21, and the insert 21 is used to connect and fix the end of the curtain 2 to the counterweight beam 31 or the middle beam 32. The counterweight beam 31 and the middle beam 32 designed in this embodiment are essentially designed as a beam body of a material and shape, used as the middle beam 32 or the counterweight beam 31, and its beam body structure is as follows Figure 5-6 As shown, the cross-section layer is H-shaped, and the openings on both sides are provided with folded edges 35 to form slots 36 for installing the insert strip 21. It is worth noting that the curtain fabric 2 of this embodiment is a honeycomb curtain, and its structure is as follows Figure 3-4 As shown, with annular honeycomb grooves, the inserts 21 can be inserted into the annular holes at both ends and penetrate horizontally, and then the inserts 21 can be installed with the curtain 2 and the slots 36. The inserts 21 play a role of strength support to prevent the curtain 2 from slipping out of the slots 36. The thickness and width of the inserts 21 can be changed according to the specifications of the curtain 2.
[0032] As a further configuration of the above scheme, curtain fabrics 2 are respectively arranged between the counterweight beam 31 and the middle beam 32, and between the middle beam 32 and the curtain box 9, and the counterweight beam 31 and the middle beam 32 are respectively independently provided with a set of the rope winding system 1.
[0033] It is worth noting that Figure 4 In the unfolded state of the curtain shown, within the unfolded range of the counterweight beam 31, the bridle 6 of the middle beam 32 is pushed, so that the curtain 2 connected to the upper end of the corresponding middle beam 32 can be unfolded (pulled downward), or the upper end can be retracted to allow the curtain 2 connected to the lower end to be unfolded (pulled upward). Through this design combined with the shading honeycomb curtain pieces 28 and the light-transmitting honeycomb curtain pieces 29 of the present embodiment, the curtain 2 can be conveniently switched between shading and semi-transparency. When the counterweight beam 31 is pushed upward, the middle beam 32 and the counterweight beam 31 can be retracted at the same time, thereby realizing the folding of all the curtains 2, removing the curtain obstruction and achieving full light transmission.
[0034] As a further arrangement of the above scheme, the beam body of the counterweight beam 31 and the middle beam 32 includes a slot 36 with an opening, a strength plate 37 and a counterweight slot 38. The slot 36 and the counterweight slot 38 are composed of a folded edge 35 of the beam body and a strength plate 37. The counterweight slot 38 is used for the installation of the counterweight rod. A concave groove 371 is also provided on the strength plate 37. The slot 36 is C-shaped for inserting the insertion strip 21 or the sealing piece 22 of the curtain fabric 2.
[0035] Furthermore, in this embodiment, a strength plate 37 is provided in the middle of the slots 36 on both sides of the beam body. The strength plate 37 is used to support the H-shaped beam body, and the slot 36 on one side of the beam body is formed with the strength plate 37 as the bottom surface. In order to reduce the friction force when the insert 21 is inserted into the slot 36, a concave groove 371 is punched on the strength plate 37. The presence of the concave groove 371 not only reduces the contact area between the strength plate 37 as the bottom surface of the slot 36 and the insert 21, but also enhances the supporting strength of the strength plate 37. In addition, the strength plate 37 is provided with a plurality of grooves 371, and the grooves 371 are provided on the strength plate 37. A counterweight slot 38 is also reserved between the other side of 7 and the slot 36. When the elastic force of the spring coiler 13 is greater than the beam body, resulting in an automatic winding problem, the balance can be adjusted by passing the counterweight block rod through the counterweight slot 38. For example, based on the weakening of the elastic force of the spring coiler 13 or the matching problem, the elastic force of the spring coiler 13 installed by the manufacturer may be greater than the calculated value. At this time, the balance between the two can be achieved by adding a counterweight. After the elastic force is weakened, the counterweight is too heavy, and the balance can be restored by removing the counterweight rod to keep the curtain in use.
[0036] As a further configuration of the above scheme, the strap 6 includes a hand strap block 62 with an anti-slip protrusion 61, and a fixed block 63 that matches and snaps into place with the middle beam 32 or the counterweight beam 31. The fixed block 63 is C-shaped and has a snap-on hook 64, which matches and snaps into place with the folded edge 35 on the beam body of the middle beam 32 or the counterweight beam 31. The folded edge 35 of the slot 36 on both sides of the middle beam 32 or the counterweight beam 31 is set as a long side 352 and a short side 351. The snap-on hook 64 of the strap 6 is correspondingly provided with a long groove 641 and a short groove 642. The cooperation between the strap 6 and the middle beam 32 or the counterweight beam 31 includes a loose snap-on connection in which the long side 352 snaps into the long groove 641 and the short side 351 snaps into the short groove 642, or a tight snap-on installation in which the long side 352 snaps into the short groove 642 and the short side 351 snaps into the long groove 641.
[0037] The curtains of this embodiment are beautiful in appearance. Figure 1 , the beam body and the curtain 2 basically maintain a plane, which also causes inconvenience when manually pushing and pulling. Therefore, the present embodiment further provides a strap 6, which is conveniently connected with the beam body by a fixing block 63 to assist the movement of the beam body, and the clamping hook 64 on the side of the fixing block 63 of the strap 6 includes a long groove 641 and a short groove 642, and the beam body slot 36 is provided with a long side 352 and a short side 351. The two have two installation methods when in use, including a loose connection in which the long side 352 is engaged with the long groove 641 and the short side 351 is engaged with the short groove 642. In this clamping state, the connection between the strap 6 and the beam body is relatively loose, and the strap 6 can also slide axially along the beam body. When removed, it can be easily detached by simply applying force to one side, such as Figure 6 As shown; otherwise Figure 7As shown, the long side 352 is engaged with the short groove 642, and the short side 351 is engaged with the long groove 641. The engagement state is relatively difficult from the cooperation angle. It is necessary to apply pressure and bend at a certain angle when engaging, so as to drive the engagement hook 64 to produce a certain elastic deformation and then reset. In this state, the engagement of the strap 6 is stable, cannot slide, and is difficult to remove, so it is suitable for installation under long-term and frequent use.
[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A cordless curtain system, comprising a curtain box (9), a cord winding system (1) arranged in the curtain box (9), and a curtain fabric (2), characterized in that: The curtain (2) is connected to a counterweight beam (31) and an intermediate beam (32), and the rope winding system (1) comprises a plurality of rope winding devices (11), a traction rope (12) and a spring winding device (13). The rope winding device (11) and the spring winding device (13) are coaxially and circumferentially linked. One end of the traction rope (12) is connected to the rope winding device (11) and the other end is connected to the counterweight beam (31) or the intermediate beam (32), so as to apply the elastic tension of the spring winding device (13) to the counterweight beam (31) or the intermediate beam (32). The counterweight beam (31) and the middle beam (32) are suspended in a height direction relative to the curtain box (9); the counterweight beam (31) and the middle beam (32) include an I-shaped plate with two slots (36) and a counterweight groove (38); a snap-fitting and detachable strap (6) is also provided on the I-shaped plate; the curtain (2) is also provided with an insert strip (21); the insert strip (21) is used to connect and fix the end of the curtain (2) to the counterweight beam (31) or the middle beam (32).
2. A cord-free curtain system according to claim 1, characterized in that: A curtain (2) is provided between the counterweight beam (31) and the middle beam (32), and between the middle beam (32) and the curtain box (9), and the curtain (2) comprises a light-shielding honeycomb curtain piece (28) and a light-transmitting honeycomb curtain piece (29), and the counterweight beam (31) and the middle beam (32) are each independently provided with a set of the winding rope system (1).
3. A cord-free curtain system according to claim 2, characterized in that: The elastic force of the spring coiler (13) is smaller than the weight of the curtain (2) connected to the traction rope (12) on the corresponding rope coiler (11) plus the counterweight beam (31) or the middle beam (32), and the elastic force of the spring coiler (13) is larger than the weight of the rope coiler (11), the traction rope (12) and the curtain (2) after losing the counterweight beam (31) or the middle beam (32).
4. The cord-free curtain system according to claim 1, characterized in that: The slot (36) is provided with an opening facing outwards, a strength plate (37) is provided in the middle of the slot (36) with two openings facing away from each other, and a counterweight slot (38) is also provided between the strength plate (37) and the slot (36), the slot (36) and the counterweight slot (38) are composed of the folded edge (35) of the beam body and the strength plate (37), and the counterweight slot (38) is used for installing a counterweight rod.
5. The cord-free curtain system according to claim 4, characterized in that: The strength plate (37) is also provided with a concave groove (371), and the slot (36) is C-shaped and is used for inserting the insert strip (21) or the sealing piece (22) of the curtain fabric (2).
6. The cord-free curtain system according to claim 4, characterized in that: The strap (6) comprises a hand strap block (62) with an anti-slip protrusion (61), and a fixing block (63) matched and snapped with the middle beam (32) or the counterweight beam (31); the fixing block (63) is C-shaped and has a snap-on hook (64) that matches and snaps with a folded edge (35) on the beam body of the middle beam (32) or the counterweight beam (31).
7. The cord-free curtain system according to claim 6, characterized in that: The folded edges (35) of the slots (36) on both sides of the middle beam (32) or the counterweight beam (31) are arranged as long sides (352) and short sides (351), and the engaging hooks (64) of the strap (6) are arranged correspondingly as long slots (641) and short slots (642). The cooperation between the strap (6) and the middle beam (32) or the counterweight beam (31) includes a loose engagement in which the long side (352) engages with the long slot (641) and the short side (351) engages with the short slot (642), or a tight engagement in which the long side (352) engages with the short slot (642) and the short side (351) engages with the long slot (641).