Hovering structure of curtain

Abstract

The utility model discloses a hovering structure of a curtain, which can simplify the structure, reduce the cost and achieve better use experience, and comprises a curtain box, curtain cloth, a counterweight seat and a roller shutter assembly, wherein the roller shutter assembly comprises a shell, a coil spring, a metal belt, a winding shaft, an adjusting screw and a rubber plug; the shell is mounted in the curtain box, and a mounting cavity and a channel communicated with the lower wall of the mounting cavity are formed in the shell; the coil spring is mounted in the mounting cavity, and the inner end of the coil spring is relatively fixed with the inner wall of the mounting cavity; one end of the metal belt is connected with the outer end of the coil spring and is wound on the peripheral surface of the coil spring; the other end of the metal belt sequentially penetrates through the channel and the curtain cloth and then is relatively fixed to the balance weight base. The winding shaft is rotationally matched in the mounting cavity and is used for guiding the direction of the metal belt; one end of the adjusting screw is in threaded connection fit with one side wall of the channel, and the other end of the adjusting screw is fixedly connected with the rubber plug; the rubber plug and the other side wall of the channel are clamped on the two faces of the metal belt and used for providing friction force so that the metal belt can be kept in a hovering state with balanced stress.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, in particular to a hovering structure of a curtain. Background Art

[0002] The corded curtain can realize the lifting of the curtain fabric through the internal motor and the pull cord to realize the opening and closing of the curtain. However, the structure is relatively complex, the cost of electrical components is relatively high, and the motor needs to be powered by a power source, either using a battery which needs to be replaced frequently, or connecting to a wire. At the same time, limited by the material of the pull cord itself, the pull cord is prone to jamming during the process of raising and lowering the curtain, resulting in a non-smooth lifting process and poor user experience. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hovering structure of a curtain, solve the problems existing in the prior art, simplify the structure, reduce the cost, and provide a better user experience.

[0004] To achieve the above object, the solution of the utility model is:

[0005] A hovering structure of a curtain, comprising a curtain box, a curtain fabric, a counterweight seat and a rolling curtain assembly; the upper and lower ends of the curtain fabric are respectively fixedly opposite to the curtain box and the counterweight seat; the rolling curtain assembly comprises a housing, a coil spring, a metal strip, a winding shaft, an adjusting screw and a rubber plug; the housing is installed in the curtain box, and an installation cavity and a channel communicating with the lower wall of the installation cavity are arranged therein; the coil spring is installed in the installation cavity, and its inner end is fixedly opposite to the inner wall of the installation cavity; one end of the metal strip is connected to the outer end of the coil spring and wound around the circumferential surface of the coil spring; the other end of the metal strip sequentially passes through the channel and the curtain fabric and is fixedly opposite to the counterweight seat; the winding shaft is rotationally matched in the installation cavity for guiding the direction of the metal strip; one end of the adjusting screw is threadedly matched with one side wall of the channel, and the other end is fixedly connected to the rubber plug; the rubber plug and the other side wall of the channel sandwich the two sides of the metal strip for providing friction force to keep the metal strip in a hovering state of force balance.

[0006] The lower surface of the curtain box and the upper surface of the counterweight seat are respectively provided with a first installation groove and a second installation groove for installing the curtain fabric, and the upper and lower ends of the curtain fabric are respectively provided with a first limiting plate and a second limiting plate embedded in the first installation groove and the second installation groove.

[0007] The housing comprises a left housing and a right housing which are detachably connected.

[0008] The inner wall of the installation cavity is provided with a fixed column for winding the coil spring, and the inner end of the coil spring is embedded in the opening of the fixed column.

[0009] Preferably, the fixing posts are arranged along the horizontal direction, and the winding shaft is parallel to the fixing posts.

[0010] The curtain fabric is a honeycomb curtain.

[0011] The metal strip is made of stainless steel.

[0012] The hovering structure of the curtain further includes a limiting piece; a limiting hole is provided at the other end of the metal strip, the limiting piece is arranged in the counterweight seat and passes through the limiting hole, and both ends of the limiting piece are locked in the counterweight seat by screws.

[0013] One side wall of the channel is provided with a screw hole penetrating through the surface of the housing, and the screw hole is in threaded connection with the adjusting screw; the curtain box is provided with a through hole opposite to the screw hole.

[0014] The rolling curtain assembly further includes a rotating cylinder sleeved on the winding shaft.

[0015] After adopting the above technical solution, the utility model has the following technical effects:

[0016] By turning the adjusting screw, the utility model can adjust the friction force of the rubber plug on the metal strip, so as to be applicable to curtain fabrics of different weights; by rotating the winding shaft fitted in the housing, the direction of the metal strip can be adjusted to match the channel, and the phenomenon of the metal strip being stuck will not occur; compared with the pull cord in the prior art, the metal strip directly penetrates through the curtain fabric, and the friction force between the metal strip and the curtain fabric is smaller, so it is not easy to generate jamming when the curtain fabric expands and contracts. The curtain is smoother during the opening or closing process, and the noise can be reduced, and the user experience is better; the utility model keeps the force balance between the two ends of the metal strip through the friction force provided by the rubber plug, so that the curtain can maintain a hovering state when not subjected to other external forces. When the user needs to open the curtain, only need to pull down the counterweight seat, and vice versa, when the user needs to close the curtain, only need to lift the counterweight seat. The operation is convenient, and no additional power is required for driving. The performance is more stable, the structure is simpler, and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Is a perspective view of the closed state of the first embodiment of the utility model;

[0018] Figure 2 Is a perspective view of the open state of the first embodiment of the utility model;

[0019] Figure 3 Is an exploded view of the whole machine of the first embodiment of the utility model;

[0020] Figure 4 Is an exploded view of the rolling curtain assembly of the first embodiment of the utility model;

[0021] Figure 5 It is a cross-sectional view of the first embodiment of the present utility model;

[0022] Figure 6 It is a cross-sectional view of the second embodiment of the present utility model;

[0023] Explanation of the reference numerals in the drawings:

[0024] 1 - curtain box; 11 - first installation groove; 12 - through hole;

[0025] 2 - curtain fabric; 21 - first limiting plate; 22 - second limiting plate;

[0026] 3 - counterweight seat; 31 - second installation groove;

[0027] 4 - rolling curtain assembly; 41 - housing; 41a - left housing; 41b - right housing; 411 - installation cavity; 412 - channel; 413 - wing plate; 414 - fixing column; 4141 - opening; 415 - screw hole; 42 - torsion spring; 43 - metal strip; 431 - limiting hole; 44 - winding shaft; 45 - adjusting screw; 46 - rubber plug; 47 - rotating cylinder;

[0028] 5 - limiting plug;

[0029] 6 - limiting piece. Specific implementation manners

[0030] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail below through specific embodiments.

[0031] Referring to Figure 1-6 as shown, the present utility model discloses a hovering structure for a curtain, including a curtain box 1, a curtain fabric 2, a counterweight seat 3 and a rolling curtain assembly 4;

[0032] The upper and lower ends of the curtain fabric 2 are relatively fixed to the curtain box 1 and the counterweight seat 3 respectively;

[0033] The rolling curtain assembly 4 includes a housing 41, a torsion spring 42, a metal strip 43, a winding shaft 44, an adjusting screw 45 and a rubber plug 46; the housing 41 is installed in the curtain box 1, and an installation cavity 411 and a channel 412 communicating with the lower wall of the installation cavity 411 are arranged therein; the torsion spring 42 is installed in the installation cavity 411, and its inner end is relatively fixed to the inner wall of the installation cavity 411; one end of the metal strip 43 is connected to the outer end of the torsion spring 42 and wound around the circumferential surface of the torsion spring 42; the other end of the metal strip 43 passes through the channel 412 and the curtain fabric 2 in sequence and is relatively fixed to the counterweight seat 3; the winding shaft 44 is rotatably fitted in the installation cavity 411 for guiding the direction of the metal strip 43; one end of the adjusting screw 45 is threadedly fitted to one side wall of the channel 412, and the other end is fixedly connected to the rubber plug 46;

[0034] The rubber plug 46 and the other side wall of the channel 412 are clamped on both sides of the metal strip 43, and are used to provide frictional force to enable the metal strip 43 to maintain a hovering state with balanced force.

[0035] Through the above solution, in the utility model, the frictional force of the rubber plug 46 on the metal strip 43 can be adjusted by turning the adjusting screw 45, so as to be applicable to curtain fabrics of different weights; the direction of the metal strip 43 can be adjusted by rotating the winding shaft 44 fitted in the housing 41 to match it with the channel 412, and the phenomenon that the metal strip 43 is stuck will not occur; compared with the pull cord in the prior art, the metal strip 43 is directly threaded through the curtain fabric 42, and the frictional force between the metal strip 43 and the curtain fabric 42 is small, and it is not easy to generate jamming during the stretching of the curtain fabric 42. The curtain is smoother during the opening or closing process, and the noise can be reduced, and the user experience is better; in the utility model, the frictional force provided by the rubber plug 46 keeps the force balance between the two ends of the metal strip 43, so that the curtain can maintain a hovering state when not subjected to other external forces. When the user needs to open the curtain, only need to pull down the counterweight seat 3, and vice versa, when the user needs to close the curtain, only need to lift the counterweight seat 3. The operation is convenient, and no additional power is required for driving. The performance is more stable, the structure is simpler, and the cost is lower.

[0036] See Figure 1-5 , which shows the first embodiment of the utility model.

[0037] The lower surface of the above-mentioned curtain box 1 and the upper surface of the counterweight seat 3 are respectively provided with a first installation groove 11 and a second installation groove 31 for installing the curtain fabric 2, and the upper and lower ends of the curtain fabric 2 are respectively provided with a first limiting plate 21 and a second limiting plate 22 embedded in the first installation groove 11 and the second installation groove 31.

[0038] Furthermore, limiting plugs 5 are provided at both ends of the above-mentioned curtain box 1 and the counterweight seat 3 to prevent the first limiting plate 21 / the second limiting plate 22 from loosening from the curtain box 1 / the counterweight seat 3.

[0039] The above-mentioned housing 41 includes a left housing 41a and a right housing 41b that are detachably connected by means of snap connection, screw locking, etc., which is convenient for disassembling and assembling internal components such as the coil spring 42 and the winding shaft 44.

[0040] Wing plates 413 are provided on both sides of the above-mentioned housing 41, and the housing 41 is locked on the curtain box 1 by means of screws passing through the wing plates 413.

[0041] The inner wall of the above-mentioned installation cavity 411 is provided with a fixed column 414 for winding the coil spring 42, and the inner end of the coil spring 42 is embedded in the opening 4141 of the fixed column 414 to keep its inner end relatively fixed with the inner wall of the installation cavity 411.

[0042] Further, the fixing post 414 is arranged along the horizontal direction, and the winding shaft 44 is parallel to the fixing post 414.

[0043] The curtain fabric 42 is a honeycomb curtain.

[0044] The metal strip 43 is made of stainless steel.

[0045] One end of the metal strip 43 is connected to the outer end of the coil spring 42 by means of welding or the like.

[0046] In the first embodiment, a limit piece 6 is further included; a limit hole 431 is provided at the other end of the metal strip 43, the limit piece 6 is arranged in the counterweight seat 3 and passes through the limit hole 431, and its two ends are locked in the counterweight seat 3 by screws.

[0047] One side wall of the channel 412 is provided with a screw hole 415 penetrating through the surface of the housing 41, and the screw hole 415 is in threaded connection with the adjusting screw 45; the curtain box 1 is provided with a through hole 12 opposite to the screw hole 415 so that a tool (such as a screwdriver) can penetrate through the through hole 12 and the screw hole 415 to rotate the adjusting screw 45.

[0048] In the first embodiment, the adjusting screw 45 is an internal hexagonal screw.

[0049] See Figure 6 , which shows the second embodiment of the present invention. The main difference from the first embodiment is that:

[0050] The rolling curtain assembly 4 further includes a rotating cylinder 47 sleeved on the winding shaft 44, which can further reduce the friction between the metal strip 43 and the winding shaft 44 and make the movement of the metal strip 43 smoother.

[0051] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A hovering structure for a curtain, characterized in that: It includes a curtain box, a curtain fabric, a counterweight seat and a rolling curtain assembly; The upper and lower ends of the curtain fabric are relatively fixed to the curtain box and the counterweight seat respectively; The rolling curtain assembly includes a housing, a torsion spring, a metal strip, a winding shaft, an adjusting screw and a rubber plug; the housing is installed in the curtain box, and an installation cavity and a channel communicating with the lower wall of the installation cavity are arranged therein; the torsion spring is installed in the installation cavity, and its inner end is relatively fixed to the inner wall of the installation cavity; one end of the metal strip is connected to the outer end of the torsion spring and wound around the circumferential surface of the torsion spring; the other end of the metal strip sequentially passes through the channel and the curtain fabric and is relatively fixed to the counterweight seat; the winding shaft is rotationally matched in the installation cavity for guiding the direction of the metal strip; one end of the adjusting screw is threadedly matched with one side wall of the channel, and the other end is fixedly connected to the rubber plug; The rubber plug and the other side wall of the channel sandwich the two sides of the metal strip for providing frictional force to keep the metal strip in a hovering state with balanced force.

2. The hovering structure for a curtain according to claim 1, characterized in that: The lower surface of the curtain box and the upper surface of the counterweight seat are respectively provided with a first installation groove and a second installation groove for installing the curtain fabric, and the upper and lower ends of the curtain fabric are respectively provided with a first limiting plate and a second limiting plate embedded in the first installation groove and the second installation groove.

3. The hovering structure for a curtain according to claim 1, characterized in that: The housing includes a left housing and a right housing which are detachably connected.

4. The hovering structure for a curtain according to claim 1, characterized in that: The inner wall of the installation cavity is provided with a fixed column for winding the torsion spring, and the inner end of the torsion spring is embedded in the opening of the fixed column.

5. The hovering structure for a curtain according to claim 4, characterized in that: The fixed column is arranged along the horizontal direction, and the winding shaft is parallel to the fixed column.

6. The hovering structure for a curtain according to claim 1, characterized in that: The curtain fabric is a honeycomb curtain.

7. The hovering structure for a curtain according to claim 1, characterized in that: The metal strip is made of stainless steel.

8. The hovering structure for a curtain according to claim 1, characterized in that: It further includes a limiting piece; a limiting hole is arranged at the other end of the metal strip, the limiting piece is arranged in the counterweight seat and passes through the limiting hole, and both ends of the limiting piece are locked in the counterweight seat by screws.

9. The hovering structure for a curtain according to claim 1, characterized in that: One side wall of the channel is provided with a screw hole penetrating to the surface of the housing, and the screw hole is threadedly connected with the adjusting screw; the curtain box is provided with a through hole opposite to the screw hole.

10. The hovering structure for a curtain according to any one of claims 1 to 9, characterized in that: The rolling curtain assembly further includes a rotating cylinder sleeved on the winding shaft.

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