Rolling structure and roller shutter using same

Abstract

The utility model provides a furling structure and a roller shutter using the furling structure. The furling structure comprises a head, an elastic module and a stabilizer which are sequentially connected along the same axis. The elastic module is used for providing main rolling elastic force for the roller shutter; the manufacturing head is used for adjusting the furling elasticity of the elasticity reinforcing module; the stabilizer is used for providing buffer damping in the winding and unwinding process; the novel winding device is novel in structure and can be adjusted according to actual use requirements to obtain matched strength, and the needed winding effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of rolling curtains, and more specifically to a rolling structure and a rolling curtain using the rolling structure. Background Art

[0002] There are several styles of roller blind structures available on the market today, which are mainly installed in doors and windows of homes and offices to block sunlight and provide decoration. In current roller blinds, the retracting structures that provide power mostly use springs to apply force and are used as the power components for retracting. However, the springs used are mostly of uniform specifications, which may cause a power mismatch problem for some roller blinds of different sizes (such as different widths, different lengths, or the same length but different widths), affecting normal retraction. Moreover, the current retracting structures are mostly determined by the spring specifications before installation. After the installation is completed, they cannot be adjusted again according to the actual situation, which is inconvenient to use and needs to be improved. Utility Model Content

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a rolling structure and a rolling shutter using the rolling structure, which has a novel structure and can be adjusted according to actual usage requirements to obtain matching force and achieve the desired rolling effect.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a winding structure, comprising a control head, an elastic module and a stabilizer which are sequentially connected along the same axis; the elastic module provides a main winding elastic force for the roller blind; the control head is used to adjust and strengthen the winding elastic force of the elastic module; the stabilizer provides buffer damping for the winding and unwinding process.

[0006] In a preferred technical solution of the utility model, the elastic module includes at least one elastic module; the elastic modules can be spliced ​​and superimposed to change the elasticity of the elastic module.

[0007] In a preferred technical solution of the utility model, the elastic module includes a first support shaft and a coil spring. The first support shaft is rotatably installed on the outer shell, the coil spring is located inside the outer shell, the inner ring end of the coil spring is connected to the first support shaft, and the outer ring end of the coil spring is connected to the outer shell; a first sleeve is fixedly provided at one end of the first support shaft, and the inner diameter of the first sleeve is adapted to the diameter of the first support shaft.

[0008] In a preferred technical solution of the utility model, a second card slot is provided on the outer wall of one end surface of the shell, and a second card block is provided on the outer wall of the other end surface. The second card block is adapted to the shape of the second card slot and has corresponding positions. Two closely adjacent elastic modules are connected and transmitted through the second card block and the second card slot.

[0009] In a preferred technical solution of the utility model, the head includes a first sleeve, a support sleeve, and a pre-tightening member; the first sleeve is rotatably sleeved on the outside of the support sleeve, and a second sleeve is provided at the end of the support sleeve. The inner diameter of the second sleeve is adapted to the diameter of the first support shaft and is used to connect with the elastic module; the pre-tightening member is rotatably inserted into the interior of the support sleeve, and the pre-tightening member and the support sleeve form a one-way rotational fit to tighten and adjust the coil spring.

[0010] In a preferred technical solution of the utility model, at least one elastic clip is provided at the end of the preload member, serving as a ratchet; a recess is correspondingly provided on the end surface of the support tube, and a plurality of clips are correspondingly provided on the groove wall, and the plurality of clips are distributed in a circular array around the axis of the support tube, serving as a ratchet; a one-way rotation fit is formed between the preload member and the support tube through the elastic clip and the clips.

[0011] In a preferred technical solution of the utility model, the stabilizer includes a second support shaft, a torsion spring, and a second sleeve; the second support shaft is rotatably installed on the second sleeve, the torsion spring is sleeved on the second support shaft, the torsion spring is located in the second sleeve, the clamping strip at the end of the torsion spring is clamped on the inner wall of the second sleeve, and rotates with the second sleeve, and a buffer damping is formed by the rotational friction between the torsion spring and the second support shaft; the diameter of the end of the second support shaft passing through the second sleeve is adapted to the diameter of the first support shaft, and is used to connect with the elastic module.

[0012] In a preferred technical solution of the utility model, the maximum outer diameter of the second sleeve, the maximum outer diameter of the outer shell, and the maximum outer diameter of the first sleeve are the same, and are all provided with bayonet holes that can be rotated to the same straight line.

[0013] The utility model also provides a rolling curtain, comprising the above-mentioned rolling structure.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a retracting structure, including a control head, an elastic module, and a stabilizer connected in sequence along the same axis; the elastic module provides the main retracting elastic force for the roller blind; the control head is used to adjust the retracting elastic force of the reinforcing elastic module; the stabilizer provides buffer damping for the reeling and unreeling process; a wide range of elastic force adjustment can be achieved through the combination of the elastic modules, and the combination can be selected according to the needs to obtain the elastic force close to the target value; the control head is used to adjust the retracting elastic force of the reinforcing elastic module to achieve secondary adjustment; combined with the friction damping provided by the stabilizer, a combination of multiple forces is achieved, so that the overall retracting force can better match the corresponding retracting requirements, effectively expanding the scope of application;

[0016] The utility model provides a rolling curtain, which uses the above-mentioned rolling structure and can be combined and adjusted according to actual use requirements to obtain matching forces and achieve the required rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a rolling structure provided in a specific embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of a three-dimensional unfolding structure of a rolling structure provided in a specific embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the elastic module provided in a specific embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the elastic module provided in a specific embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional unfolding structure of the elastic module provided in a specific embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the first support shaft provided in a specific embodiment of the utility model;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of a housing provided in a specific embodiment of the utility model;

[0024] Figure 8 It is a three-dimensional structural schematic diagram of a housing provided in a specific embodiment of the utility model;

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of a head provided in a specific embodiment of the utility model;

[0026] Fig.10 It is a schematic diagram of the three-dimensional unfolding structure of the head provided in a specific embodiment of the utility model;

[0027] Fig.11 It is a cross-sectional view of a head provided in a specific embodiment of the utility model;

[0028] Fig.12 It is a three-dimensional structural schematic diagram of a pre-tightening member provided in a specific embodiment of the utility model;

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the support tube provided in a specific embodiment of the utility model from a first viewing angle;

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the support tube provided in a specific embodiment of the utility model from a second viewing angle;

[0031] Fig.15It is a three-dimensional structural schematic diagram of a first sleeve provided in a specific embodiment of the utility model;

[0032] Fig.16 It is a schematic diagram of the three-dimensional structure of a stabilizer provided in a specific embodiment of the utility model;

[0033] Fig.17 It is a schematic diagram of the three-dimensional unfolding structure of the stabilizer provided in a specific embodiment of the utility model;

[0034] Fig.18 It is a three-dimensional structural schematic diagram of the second sleeve provided in a specific embodiment of the utility model;

[0035] Fig.19 It is a schematic diagram of the three-dimensional structure of the second support shaft provided in a specific embodiment of the utility model.

[0036] In the figure:

[0037] 100, elastic module; 200, elastic module; 300, first support shaft; 310, first slot; 320, clip; 330, first sleeve; 400, coil spring; 500, housing; 510, first clip; 520, second clip; 530, housing; 531, plug column; 532, second clip block; 540, housing cover; 541, notch; 543, second slot;

[0038] 600, head; 610, first sleeve; 611, first clamping plate; 612, clamping ring; 620, support tube; 621, second sleeve; 622, sink groove; 623, clamping teeth; 624, support ring; 625, annular groove; 626, arc-shaped protrusion; 627, slot; 630, preload member; 631, elastic clamping strip; 632, inserting strip; 633, protruding column; 634, guide hole; 635, through hole; 640, first bearing; 650, inserting rod; 651, guide groove; 660, spring; 670, clamping bead;

[0039] 700, stabilizer; 710, second support shaft; 711, limit ring; 712, convex ring; 720, torsion spring; 721, clamping strip; 730, second sleeve; 731, second clamping plate; 732, embedding groove; 733, reinforcement ring; 740, third clamping spring. DETAILED DESCRIPTION

[0040] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0041] like Figure 1 , Figure 2As shown, a specific embodiment of the utility model discloses a winding structure, including a control head 600, an elastic module 100, and a stabilizer 700 connected in sequence along the same axis; the elastic module 100 provides the main winding elastic force for the roller blind; the control head 600 is used to adjust the winding elastic force of the enhanced elastic module; the stabilizer 700 provides buffer damping for the winding and unwinding process; it can achieve a larger range of elastic force adjustment through the combination of elastic modules, and the combination can be selected according to needs to obtain the elastic force close to the target value; the winding elastic force of the enhanced elastic module is adjusted by the control head to achieve secondary adjustment; combined with the friction damping provided by the stabilizer, a combination of multiple forces is achieved, so that the overall winding force can better match the corresponding winding demand, effectively expanding the scope of application.

[0042] Furthermore, if Figure 3 , Figure 4 As shown, the elastic module 100 includes at least one elastic module 200; the elastic modules can be spliced ​​and stacked to change the elastic force of the elastic module; an appropriate number of elastic modules are selected for combination according to the required winding force, so that the elastic force formed by the combination is close to the required elastic force value, and a large range of adjustment is performed, and then a secondary adjustment is performed through the head, and the stabilizer is damped and buffered in a small range to achieve a better winding effect.

[0043] Furthermore, if Figure 4 , Figure 5 As shown, the elastic module 200 includes a first support shaft 300 and a coil spring 400. The first support shaft 300 is rotatably installed on the outer shell 500. The coil spring 400 is located inside the outer shell 500. The inner ring end of the coil spring 400 is connected to the first support shaft 300, and the outer ring end of the coil spring 400 is connected to the outer shell 500. A first sleeve 330 is fixedly provided at one end of the first support shaft 300, and the inner diameter of the first sleeve 330 is adapted to the diameter of the first support shaft 300. A first pin hole is provided on the side wall of the first sleeve, and a second pin hole is correspondingly provided at the other end of the first support shaft. When the two elastic modules are matched, the first support shaft and the first sleeve can be plugged together, and fixed by screws / pins inserted through the first pin hole and the second pin hole, so as to realize the combination and connection between the two elastic modules, and also realize the superposition of elastic force between the two elastic modules.

[0044] Furthermore, the outer shell 500 includes a shell body 530 which is open on one side, and a shell cover 540 is provided on the outer side of the open mouth of the shell body 530; corresponding through holes are provided in the centers of the shell body and the shell cover, and the first support shaft movably penetrates the shell body and the shell cover through the through hole, and the end of the first support shaft away from the first sleeve is limited by a first retaining spring, so that the first support shaft can be rotated and penetrated on the shell body and the shell cover, and the shell cover is maintained to be closed on the shell, thereby effectively limiting the coil spring; a plug post 531 is fixedly provided on the outer side of the open mouth of the shell body 530, and a socket is correspondingly provided on the shell cover; the shell cover is arranged on the outer side of the open mouth of the shell, and the plug post is correspondingly inserted into the socket, which can facilitate the alignment and installation between the shell cover and the shell, and can rotate synchronously; and the overall structure adopts an assembled structure, which can facilitate the processing and production of various structural components, and is also convenient for assembly and assembly.

[0045] Furthermore, if Figures 5 to 8 As shown, a first slot 310 is provided on the outer side of the first support shaft 300, a clamping head 320 is fixedly provided at the bottom of the first slot 310, and one end of the coil spring 400 is sleeved on the outer side of the clamping head 320; a first bayonet 510 is provided on the outer side of the shell 530, a second bayonet 520 is provided on one side of the first bayonet 510, and a card is fixedly provided on the other end of the coil spring 400, which can be extended from the second bayonet and clamped on the outer side of the second opening, thereby limiting the other end of the coil spring, so that the two ends of the coil spring are respectively connected and matched with the first support shaft and the shell, so that the coil spring is rolled up inside the shell, and the outer side of the coil spring is limited by the shell to maintain the rolled-up state so as to provide the required elastic force later; and a notch 541 is provided on the edge of the shell cover 540, and the position of the notch 541 corresponds to the position of the first bayonet 510, forming a continuous bayonet position, which is convenient for clamping and matching with the inside of the rolling curtain rod to meet the required assembly effect.

[0046] Furthermore, a second slot 543 is provided on the outer wall of one end face of the shell 500, and a second block 532 is provided on the outer wall of the other end face, the second block 532 and the second slot 543 are adapted in shape and have corresponding positions; two closely adjacent elastic modules are connected and transmitted through the second block and the second slot; wherein the second slot is provided at the edge of the shell cover, and the second bayonet is provided at the edge of the wall of the shell away from the open mouth, so that the shells after assembly can be engaged with each other as required to achieve synchronous movement; this structural design is mainly used for the structure of the elastic module of multiple coil springs, when the length of the first support shaft is long enough to be able to cover more than two coil springs, it means that there are two shells, and the two shells can be matched through the second block and the second slot, can be synchronously moved, and provide greater winding force; it should be noted that the length of the first support shaft can be preset in advance for several commonly used specifications, including but not limited to being able to be wound with one / two / three coil springs, and can be selected and combined accordingly according to actual needs to meet different elastic requirements.

[0047] Furthermore, if Figures 9 to 14 As shown, the head 600 includes a first sleeve 610, a support tube 620, and a preload 630; the first sleeve 610 is rotatably sleeved on the outer side of the support tube 620, and a second sleeve 621 is provided at the end of the support tube 620. The inner diameter of the second sleeve 621 is adapted to the diameter of the first support shaft 300 and is used to connect with the elastic module; the preload 630 is rotatably inserted into the interior of the support tube 620, and the preload 630 and the support tube 620 form a one-way rotation fit to tighten and adjust the coil spring 400; a third pin hole is correspondingly provided on the outer wall of the second sleeve. When the head is assembled with the elastic module, it is necessary to insert the end of the first support shaft into the second sleeve and connect them by screws / pins to connect the two for transmission; the preload and the support tube form a one-way rotation fit; the elastic component can be preloaded by unidirectional rotation, and it can also be rotated and adjusted when assembled on the wall mounting code, and the spring module can be adjusted twice to meet the required elastic force requirements.

[0048] Furthermore, if Fig.12 , 13 As shown, at least one elastic clip 631 is provided at the end of the pre-tightening member 630 as a ratchet; a corresponding recessed groove 622 is provided at the end surface of the support tube 620, and a plurality of clip teeth 623 are provided on the groove wall of the recessed groove 622. The plurality of clip teeth are arranged in a circular array around the axis of the support tube as a ratchet; the pre-tightening member and the support tube form a one-way rotation fit through the elastic clip strip and the clip teeth;

[0049] Furthermore, if Fig.12 As shown, the preload member 630 includes an insert strip 632, the diameter of which matches the inner diameter of the support tube 620, a boss 633 is fixedly provided at the center of the end of the insert strip 632, the diameter of which is smaller than the diameter of the insert strip, a first circular hole is correspondingly provided at the end of the support tube, the diameter of which matches the diameter of the boss, and a threaded hole is provided at the center of the boss for installing a screw; the insert strip is maintained inserted in the support tube by means of screws, and the elastic clamping strip is located inside the sink groove to maintain the required one-way rotation fit;

[0050] Furthermore, the elastic clip strip 631 is fixedly arranged on the end side wall of the insertion strip 632. The number of the elastic clip strips 631 is preferably 4, and the 4 elastic clip strips 631 are arranged in a circular array around the axis of the insertion strip 632. Although the number of the elastic clip strips is increased, the elastic clip strips can still be normally squeezed during rotation, so that the preloaded part can rotate normally; in addition, multiple points of engagement can be formed between the multiple elastic clip strips and the latch teeth to enhance the directional locking force and effectively prevent the preloaded part from rotating in the opposite direction;

[0051] Furthermore, if Fig.13 , Fig.14As shown, a support ring 624 is fixedly provided on the outer wall of one end of the support tube 620 close to the sink groove, and the outer diameter of the support ring 624 is larger than the inner diameter of the first sleeve 610, and the end of the first sleeve slides against the wall of the support ring; a first bearing 640 is installed on the second sleeve 621, and the outer ring diameter of the first bearing is adapted to the inner diameter of the end of the first sleeve, and the outer ring of the first bearing is clamped at the port of the first sleeve, so that the first sleeve is rotatably sleeved on the outer side of the support tube; Fig.15 As shown, a plurality of first clamping plates 611 are fixedly provided on the outer wall of the first sleeve 610, and the plurality of first clamping plates 611 are arranged in a circular array around the axis of the first sleeve 610, and the outer wall surface of the first clamping plate is an arc-shaped structure, and the distance from the outer wall surface of the first clamping plate to the axis of the first sleeve is the same as the radius of the shell, and a third clamping port is formed between two adjacent first clamping plates, and the width of the third clamping port is adapted to the width of the first clamping port, so that it can be smoothly inserted into the interior of the rolling curtain rod and perform the required clamping fit;

[0052] Furthermore, the diameter of the support tube is larger than the diameter of the second sleeve, forming a first step portion, the inner wall of the port of the first sleeve is provided with a second step portion, the second step portion is flush with the first step portion, and the outer wall of the second sleeve is provided with a third clamping groove for clamping the second clamping spring, so that the first bearing is installed between the second clamping spring and the first step portion and the second step portion, and the first sleeve is blocked by the first bearing; a pressure ring is provided at the connection between the support tube and the support ring, and a third step portion is provided on the inner wall of the end of the first sleeve close to the support ring, the inner diameter of the third step portion is adapted to the outer diameter of the second bearing, the inner diameter of the second bearing is adapted to the outer diameter of the support tube, the second bearing is sleeved on the outside of the support tube, the outer ring of the second bearing is clamped at the port of the first sleeve, and the second bearing is clamped between the third step portion and the pressure ring;

[0053] Furthermore, if Figures 10 to 12 As shown, the inserting strip 632 is provided with a guide hole 634 along the axial direction, and the end of the guide hole away from the protruding column is open, and an inserting rod 650 is inserted and installed in the guide hole 634. A spring 660 is provided in the guide hole 634 to provide an elastic force for the inserting rod 650 to push outward, but the inserting rod will not be separated from the guide hole, so that it has a telescopic function, so that the head can be assembled with the external mounting code, and it is convenient for disassembly;

[0054] Furthermore, a guide groove 651 is provided on the outer wall of the plug rod 650, and the guide groove 651 extends to the end face of the plug rod 650 away from the end of the spring 660; a through hole 635 is provided on the side wall of the end of the plug strip 632 close to the elastic clamping strip 631, and the through hole is connected to the guide hole and corresponds to the position of the guide groove. A clamping bead 670 is provided at the through hole 635, and the bottom of the guide groove is an arc-shaped structure, which is adapted to the clamping bead. The plug rod 650 moves along the guide hole 634 and is prevented from falling off by the clamping bead 670; the overall structure is simple, and the assembly structure is adopted, which can facilitate the processing and production of various structural components, and also facilitate the disassembly and replacement of components;

[0055] Furthermore, the plug rod is a prismatic strip structure, and the shape of the guide hole is adapted to the shape of the plug rod, which can effectively prevent the plug rod from rotating and facilitate alignment installation, so that the card bead and the guide groove are aligned and matched, and it is also convenient for the plug rod to match the external installation code;

[0056] Furthermore, if Fig.14 As shown, an annular groove 625 is provided on the wall surface of the support ring 624 close to the first sleeve 610, and a snap ring 612 is correspondingly provided on the end surface of the first sleeve 610. The position of the snap ring corresponds to the position of the annular groove, and the shape is adapted. The snap ring is rotatably abutted against the bottom of the annular groove. By providing the snap ring and the annular groove, the contact area between the first sleeve and the support ring is further increased, and the overall matching can be strengthened; and this structure can further facilitate the alignment and assembly between the first sleeve and the support tube;

[0057] Furthermore, a chamfer is provided at the outer ring position of the end of the first clamping plate away from the supporting ring, which can reduce the outer ring profile of the insertion end of the head, so that the head can be smoothly inserted into the interior of the rolling rod, which is convenient for installation;

[0058] Furthermore, the outer wall of the support ring 624 is provided with a plurality of arc-shaped protrusions 626, which are arranged in a circular array around the axis of the support ring, and the ends of two adjacent arc-shaped protrusions are connected, so as to achieve an anti-slip effect and facilitate gripping the support ring for adjustment;

[0059] Furthermore, a slot 627 extending in the radial direction is provided at the arc-shaped protrusion 626, and the support ring can be adjusted by inserting a screwdriver or other structural tools, which is suitable for operation after installation when it is inconvenient to grip the support ring.

[0060] Furthermore, if Figures 16 to 19As shown, the stabilizer 700 includes a second support shaft 710, a torsion spring 720, and a second sleeve 730; the second support shaft 710 is rotatably installed on the second sleeve 730, the torsion spring 720 is sleeved on the second support shaft 710, the torsion spring 720 is located in the second sleeve 730, and the clamping strip 721 at the end of the torsion spring 720 is clamped on the inner wall of the second sleeve 730, and rotates with the second sleeve, and a buffer damping is formed by the rotational friction between the torsion spring and the second support shaft; the diameter of the end of the second support shaft 710 passing through the second sleeve is adapted to the diameter of the first support shaft 300, and is used for connecting with the elastic module; a fourth pin hole is correspondingly provided on the side wall of the end of the second support shaft. When the stabilizer and the elastic module are assembled, the end of the second support shaft is inserted into the first sleeve, and connected by screws / pins, so that the two are connected and transmitted; the outer wall of the second sleeve 730 is fixedly provided with a plurality of first Two clamping plates 731, multiple second clamping plates 731 are distributed in a circular array around the axis of the second sleeve 730, and a fourth clamping slot is formed between two adjacent second clamping plates. The width of the fourth clamping slot is adapted to the width of the first clamping slot so that it can be smoothly inserted into the interior of the rolling shutter rod and perform the required clamping fit; the inner wall of the second sleeve 730 is provided with an embedding groove 732 corresponding to the clamping strip at the end of the torsion spring 720, and the clamping strip 721 at the end of the torsion spring 720 is clamped in the embedding groove 732, so that the torsion spring and the second sleeve move synchronously, so that the friction between the torsion spring and the second support shaft has a corresponding damping effect; the overall assembly structure is adopted, which is convenient for the processing and production of various structural components, and also convenient for the disassembly, assembly and replacement of components; the overall structure of the stabilizer is simple, and the buffer damping is formed by the rotational friction between the torsion spring and the second support shaft, which is used to overcome the elastic force error of the rolling shutter and achieve the required buffering and balancing effects.

[0061] Furthermore, the cross section of the embedding groove 732 is a fan-shaped structure, and the clamping strips 721 at both ends of the torsion spring 720 fall into the same embedding groove 732, and the clamping strips are blocked by the groove wall of the embedding groove, so that the torsion spring moves with the second sleeve; the use of a single embedding groove with a larger range can also facilitate the installation of the torsion spring, and the assembly can be completed without fine alignment;

[0062] Furthermore, a limiting ring 711 is fixedly provided at the end of the second support shaft 710 away from the fourth pin hole, and a convex ring 712 is formed on the end side wall of the limiting ring 711. The diameter of the limiting ring 711 is adapted to the inner diameter of the second sleeve 730. A fourth clamping groove is also provided on the outer wall of the second support shaft 710 for clamping the third retaining spring 740. A second circular hole is provided at the end of the second sleeve, and the second support shaft passes through the second sleeve through the second circular hole. The limiting ring is rotatably arranged in the port of the second sleeve, and the convex ring abuts against the outer side of the port of the second sleeve. The third retaining spring abuts against the outer side of the port of the second circular hole, so that the second support shaft is rotatably installed at the second sleeve, and the torsion spring is sleeved on the second support shaft and located inside the second sleeve. The overall assembly structure is adopted, which can facilitate the processing and production of various structural components and also facilitate the disassembly and replacement of components.

[0063] Furthermore, a reinforcement ring 733 is fixedly provided on the outer wall of the end of the second sleeve 730 away from the open mouth, and the end of the second clamping plate 731 is fixedly connected to the reinforcement ring 733, so as to strengthen the support of the second clamping plate, enhance the overall structural strength, and prevent the second clamping plate from being broken or damaged;

[0064] Furthermore, a chamfer is provided at the outer ring position of the end of the second clamping plate close to the open mouth, so that the outer ring profile of the entire insertion end can be reduced, so that the stabilizer can be smoothly inserted into the interior of the rolling rod, which is convenient for installation;

[0065] Furthermore, the maximum outer diameter of the second sleeve, the maximum outer diameter of the outer shell, and the maximum outer diameter of the first sleeve are the same, and are all provided with bayonet holes that can be rotated to the same straight line; wherein, the outer wall of the shell is provided with a first bayonet hole, and the shell cover is correspondingly provided with a notch, the outer side of the first sleeve is provided with a third bayonet hole, and the outer side of the second sleeve is provided with a fourth bayonet hole; during installation, the stabilizer, the elastic module, and the control head are inserted from the port of the rolling curtain rod in sequence, so that the fourth bayonet hole, the first bayonet hole and the notch, and the third bayonet hole correspond to the convex strip inside the rolling curtain rod in sequence, so that the rolling curtain rod and the second sleeve, the outer shell, and the second sleeve move synchronously, thereby utilizing the winding elastic force of the internal winding spring and the friction damping between the torsion spring and the second support shaft to achieve the desired winding effect and balancing effect.

[0066] The utility model also discloses a rolling curtain, including a mounting code, a supporting end, a rolling curtain rod, a curtain cloth, and the above-mentioned rolling-up structure; they can be combined and adjusted according to actual usage requirements to obtain matching force and achieve the required rolling-up effect; wherein, the mounting code is installed on the wall, the rolling-up structure is installed on the rolling curtain rod, the other end of the rolling curtain rod is installed with a supporting end, the rolling curtain rod is framed between two mounting codes through a head and a supporting end, and the curtain cloth is wound and installed on the rolling curtain rod; the above-mentioned mounting code, supporting end, rolling curtain rod, and curtain cloth are all common in the field of rolling curtains, and more specific structures and connection and installation methods are not repeated.

[0067] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A retracting structure, characterized in that: It includes a control head, an elastic module, and a stabilizer which are sequentially connected along the same axis; Elastic module, providing main rolling and retracting elastic force for the roller blind; The control head is used to adjust the retracting elastic force of the enhanced elastic module; Stabilizer provides buffer damping for the winding and unwinding process.

2. A retracting structure according to claim 1, characterized in that: The elastic module includes at least one elastic module; The elastic modules can be spliced ​​and superimposed to change the elasticity of the elastic modules.

3. A retracting structure according to claim 2, characterized in that: The elastic module includes a first support shaft and a coil spring. The first support shaft is rotatably installed on the housing. The coil spring is located inside the housing. The inner ring end of the coil spring is connected to the first support shaft, and the outer ring end of the coil spring is connected to the housing. A first sleeve is fixedly provided at one end of the first support shaft, and the inner diameter of the first sleeve is matched with the diameter of the first support shaft.

4. A retracting structure according to claim 3, characterized in that: A second card slot is provided on the outer wall of one end surface of the housing, and a second card block is provided on the outer wall of the other end surface, and the second card block is adapted in shape to the second card slot and has a corresponding position; Two closely adjacent elastic modules are connected and transmitted via the second clamping block and the second clamping slot.

5. A retracting structure according to claim 4, characterized in that: The head comprises a first sleeve, a support sleeve and a pre-tightening member; The first sleeve is rotatably sleeved on the outside of the support tube, and a second sleeve is provided at the end of the support tube. The inner diameter of the second sleeve is adapted to the diameter of the first support shaft and is used to connect with the elastic module; The pre-tightening member is rotatably inserted in the interior of the support tube, and the pre-tightening member and the support tube form a one-way rotation fit to tighten and adjust the coil spring.

6. A retracting structure according to claim 5, characterized in that: At least one elastic clip is provided at the end of the pre-tightening member, serving as a ratchet; A recessed groove is correspondingly provided on the end surface of the support tube, and a plurality of latching teeth are correspondingly provided on the groove wall of the recessed groove. The plurality of latching teeth are distributed in a circular array around the axis of the support tube, serving as a ratchet; The pre-tightening member and the supporting tube form a one-way rotation fit through the elastic clamping strip and the clamping teeth.

7. A retracting structure according to claim 6, characterized in that: The stabilizer includes a second support shaft, a torsion spring, and a second sleeve; The second support shaft is rotatably installed on the second sleeve, the torsion spring is sleeved on the second support shaft, the torsion spring is located in the second sleeve, the clamping strip at the end of the torsion spring is clamped on the inner wall of the second sleeve, and rotates with the second sleeve, and the rotational friction between the torsion spring and the second support shaft forms a buffer damping; The diameter of the end of the second support shaft passing through the second sleeve is matched with the diameter of the first support shaft, and is used for connecting with the elastic module.

8. A retracting structure according to claim 7, characterized in that: The maximum outer diameter of the second sleeve, the maximum outer diameter of the outer shell, and the maximum outer diameter of the first sleeve are the same, and are all provided with bayonet holes that can be rotated to the same straight line.

9. A rolling blind, characterized in that: It comprises a rolling structure as claimed in claim 8.

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