Double-track screen curtain

Abstract

The utility model relates to the technical field of curtains, and provides a double-track screen curtain which comprises fabric, a first sliding rail, a second sliding rail, a driving mechanism and a distance rope. Wherein a supporting rod is arranged at the top end of the fabric; the main sliding blocks are connected through a distance rope; the two sides of the supporting rod are connected with the main sliding block and the auxiliary sliding block respectively. The driving mechanism is in driving connection with the main sliding block; the main sliding block and the auxiliary sliding block each comprise a sliding piece and a connecting piece which are rotationally connected with each other, the sliding pieces are arranged on the first sliding rails or the second sliding rails in a sliding mode, and the connecting pieces are connected with the supporting rods. According to the double-track screen curtain, the main sliding blocks and the auxiliary sliding blocks comprise the sliding pieces and the connecting pieces which are rotationally connected with each other, extrusion force borne by the two sides of the supporting rods can be buffered through rotation between the connecting pieces and the sliding pieces, the pressure of the sliding blocks on the side walls of the sliding rails is reduced, and therefore friction force is reduced, and the service life of the screen curtain is prolonged. The fabric is prevented from being blocked during sliding, the smoothness of the sliding block is improved, and the sliding block is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, in particular to a double-track screen curtain. Background Art

[0002] With the improvement of people's living standards, there are more and more types of curtains nowadays, such as roller blinds, vertical blinds and screen curtains.

[0003] In modern buildings, the size of windows is relatively large, and curtains require multiple pieces of fabric to cover the windows. In order to prevent light leakage between each piece of fabric, people usually use a double-track screen curtain, in which the first side of the top of the fabric of the screen curtain is hung on the main slider of the first slide track, and the second side of the top of the fabric is hung on the secondary slider of the second slide track, wherein the first slide track and the second slide track are arranged in parallel, and adjacent fabrics are arranged in a staggered manner to prevent light leakage between the fabrics.

[0004] However, in the technology of related screen curtains, since the main slider and the auxiliary slider are located on different slide rails and adjacent fabrics are staggered, when the fabrics slide on the slide rails, the main slider and the auxiliary slider will produce an extrusion pressure on the side walls of the slide rails, increasing the friction between the related sliders and the slide rails. The sliding of the fabrics is prone to jamming, and the sliders will be stuck on the slide rails, making them easy to be damaged. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a double-track screen curtain to solve at least one of the above-mentioned technical defects in the prior art, so that when the fabric slides on the slide rail, the extrusion force generated by the main slider and the auxiliary slider on the side wall of the slide rail can be reduced, thereby reducing the friction between the relevant slider and the slide rail, avoiding the phenomenon of jamming when the fabric slides, improving the smoothness of the slider sliding, and avoiding damage to the slider.

[0006] In order to achieve the purpose of the utility model, the utility model provides a double-track screen curtain, which includes:

[0007] A plurality of fabrics, each of which has a support rod at the top thereof;

[0008] A first slide rail is provided with a plurality of main slide blocks, each of the main slide blocks is connected by a distance rope;

[0009] A second slide rail having a plurality of auxiliary slides, wherein the second slide rail is arranged parallel or concentric with the first slide rail;

[0010] The first side of the support rod is connected to one of the main sliders, and the second side of the support rod is connected to one of the auxiliary sliders;

[0011] A driving mechanism, including a driving block, drivingly connected to one of the main sliders;

[0012] Each of the main sliders and each of the auxiliary sliders includes a sliding member and a connecting member, wherein the connecting member is rotatably connected to the sliding member, the sliding member is slidably arranged on the first slide rail or the second slide rail, and the connecting member is connected to the support rod.

[0013] Preferably, the sliding member includes a sliding portion, and the sliding portion is in sliding contact with the first slide rail or the second slide rail.

[0014] Preferably, the connecting member is provided with a connecting portion, and the sliding member is provided with a rotating portion, and the rotating portion is detachably rotatably connected to the connecting portion.

[0015] Preferably, the connecting member comprises a hook, and the connecting portion comprises a cylindrical rod, a first limiting protrusion and a second limiting protrusion.

[0016] The first limiting protrusion and the second limiting protrusion are respectively arranged at two ends of the cylindrical rod, and the first limiting protrusion is connected to the hook;

[0017] The rotating part includes a first clamping arm and a second clamping arm parallel to each other.

[0018] A rotation groove is provided at the connection between the first clamping arm and the second clamping arm, and the rotation groove is rotatably connected to the cylindrical rod.

[0019] The minimum distance between the first clamping arm and the second clamping arm is smaller than the outer diameter of the cylindrical rod.

[0020] Preferably, it further comprises a plurality of lower beams, each of which is arranged under each piece of the fabric, and each adjacent lower beam is slidably connected to each other.

[0021] Preferably, the sliding member is provided with a positioning portion, and the distance rope is fixed to the sliding member through the positioning portion.

[0022] Preferably, the driving mechanism further comprises a driving motor and a driving belt.

[0023] The driving belt is drivingly connected to the driving block, and the driving motor drives the driving block to slide on the first slide rail by driving the driving belt.

[0024] Preferably, both ends of the first slide rail are provided with driving gears, and the driving motor is connected to one of the driving gears.

[0025] The first slide rail is provided with a belt groove, and the driving belt is arranged in the belt groove.

[0026] The driving belt is a toothed synchronous belt, the toothed synchronous belt is connected to the driving gear, and the driving block is a toothed driving block.

[0027] Preferably, the hook comprises a first hook arm and a second hook arm, and the support rod is provided with a hook groove.

[0028] The first hook arm and the second hook arm are staggered with each other and are suitable for hooking into the hook groove.

[0029] Preferably, the first slide rail is provided with a first slide groove, and the second slide rail is provided with a second slide groove.

[0030] The main slider is slidably connected to the first sliding groove, and the auxiliary slider is slidably connected to the second sliding groove.

[0031] The belt groove is arranged in parallel on both sides of the first sliding groove.

[0032] The beneficial effects of the utility model are as follows: the double-track screen curtain provided by the utility model is configured such that each main slider and each auxiliary slider include a sliding part and a connecting part, and the sliding part and the connecting part are rotatably connected. When the fabric slides on the slide track, the extrusion force on both sides of the support rod can be buffered by the rotation between the connecting part and the sliding part. At the same time, the extrusion force generated by the main slider and the auxiliary slider on the side wall of the slide track can be reduced, thereby reducing the friction between the relevant slider and the slide track, avoiding the phenomenon of jamming when the fabric slides, improving the smoothness of the sliding of the slider, and avoiding damage to the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other purposes, features and advantages of the present invention will become clearer through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the main purpose of the present invention.

[0034] Figure 1 A schematic diagram of the overall structure of the double-track screen curtain in the unfolded state provided by an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of the overall structure of the double-track screen curtain in a closed state provided by an embodiment of the utility model;

[0036] Figure 3 for Figure 1 A schematic diagram of a partial structure of the first slide rail and the second slide rail cut vertically from the top;

[0037] Figure 4 for Figure 3 Enlarged view of area A in the middle;

[0038] Figure 5 for Figure 3 Enlarged view of area B in the middle;

[0039] Figure 6for Figure 3 Enlarged view of area C in the middle;

[0040] Figure 7 A schematic structural diagram of a double-track screen curtain provided by an embodiment of the utility model with a first vertical slide rail and a second vertical slide rail cut away;

[0041] Figure 8 The overall structure diagram of the sliding parts and connecting parts of the double-track screen curtain provided by the embodiment of the utility model;

[0042] Fig. 9 for Figure 8 Schematic diagram of longitudinal section.

[0043] In the figure:

[0044] 100, fabric; 110, support rod; 111, hook groove;

[0045] 200, first slide rail; 210, main slide block; 230, belt groove; 240, driving gear;

[0046] 211, sliding member; 2111, sliding portion; 2112, rotating portion; 21121, first clamping arm; 21122, second clamping arm; 21123, rotating groove; 2113, positioning portion; 21130, positioning groove; 21131, spherical groove;

[0047] 212, connecting member; 2121, connecting portion; 21211, cylindrical rod; 21212, first limiting protrusion; 21213, second limiting protrusion; 2122, hook; 21221, first hook arm; 21222, second hook arm; 220, first sliding groove;

[0048] 300, second slide rail; 310, auxiliary slide block; 320, second slide groove;

[0049] 400, driving mechanism; 410, driving block; 420, driving motor; 430, driving belt;

[0050] 500, fixed-distance rope; 510, set-piece.

[0051] 600, lower beam; DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0053] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0055] Combine the following Figures 1 to 9 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

[0056] It should be noted that the directional words such as "left", "right", "up", "down", "front" and "back" in the embodiments of the utility model provide positional descriptions of the mechanisms in the accompanying drawings. When the direction of the drawings changes, the above directional words may also change, and are not unique to the actions of the related mechanisms.

[0057] See also Figures 1 to 9 An embodiment of the utility model provides a double-track screen curtain, which includes a fabric 100, a first slide rail 200, a second slide rail 300, a driving mechanism 400 and a distance rope 500.

[0058] There are multiple pieces of fabric 100 , and each piece of fabric 100 is staggered to prevent light leakage between the fabrics 100 . A support rod 110 is provided at the top of each piece of fabric 100 .

[0059] A plurality of main sliding blocks 210 are arranged on the first sliding rail 200 , and each of the main sliding blocks 210 is connected by a distance rope 500 .

[0060] A plurality of auxiliary slide blocks 310 are disposed on the second slide rail 300 , and the second slide rail 300 is disposed parallel to the first slide rail 200 .

[0061] A first side of the support rod 110 is connected to one of the main sliders 210 , and a second side of the support rod 110 is connected to one of the auxiliary sliders 310 .

[0062] The driving mechanism 400 includes a driving block 410 , which is drivingly connected to one of the main sliders 210 .

[0063] Each main slider 210 and each auxiliary slider 310 includes a sliding member 211 and a connecting member 212 . The connecting member 212 is rotatably connected to the sliding member 211 . The sliding member 211 is slidably disposed on the first slide rail 200 or the second slide rail 300 . The connecting member 212 is connected to the support rod 110 .

[0064] Specifically, in this embodiment, the fabric 100 can be provided with 5 pieces, and at least 5 main sliders 210 are provided on the first slide rail 200, which are sequentially from the first main slider to the fifth main slider from left to right (or from right to left); at least 5 sub-sliders 310 are also provided on the second slide rail 300, which are sequentially from the first sub-slider to the fifth sub-slider from left to right (or from right to left); three main sliders are respectively provided on the distance rope 500 between the first main slider and the second main slider, between the second main slider and the third main slider, between the third main slider and the fourth main slider, and between the fourth main slider and the fifth main slider.

[0065] The first side of the support rod 110 is connected to the first main slider, the second side of the support rod 110 is connected to the first sub-slider, the driving block 410 is drivingly connected to the fifth main slider, and the driving block 410 can drive the fifth main slider to slide on the first slide rail 200 along the left and right directions, and the first sub-slider on the second slide rail 300 can also slide through the support rod 110.

[0066] When the driving block 410 drives the fifth main slider to slide to the right, each piece of fabric 100 unfolds, and the screen curtain is in an unfolded state; when the driving block 410 drives the fifth main slider to slide to the left, each piece of fabric 100 overlaps, and the screen curtain is in a closed state. After closing, the main sliders located between the first main slider and the second main slider, between the second main slider and the third main slider, between the third main slider and the fourth main slider, and between the fourth main slider and the fifth main slider abut against each other to limit the positions of the fabrics 100 and prevent collision damage between the fabrics 100.

[0067] The structures of each main slider 210 and each auxiliary slider 310 can be completely the same, and both include a sliding member 211 and a connecting member 212, and the connecting member 212 is rotatably connected to the sliding member 211. The sliding member 211 on the first main slider is slidably disposed on the first slide rail 200, and the connecting member 212 on the first main slider 210 is connected to the first side of the support rod 110; the sliding member 211 on the first auxiliary slider 310 is slidably disposed on the second slide rail 300, and the connecting member 212 on the first auxiliary slider 310 is connected to the second side of the support rod 110.

[0068] Since the connecting member 212 on the first main slider 210 or the first auxiliary slider 310 is rotatably connected to the sliding member 211, when the fabric 100 slides in the left and right directions, the extrusion force on the first side and the second side of the support rod 110 can be buffered by the rotation between the connecting member 212 and the sliding member 211, so that the fabric 10 connected to the support rod 110 can slide smoothly.

[0069] It can be understood that the double-track screen curtain provided by the embodiment of the utility model is achieved by providing each main slider 210 and each auxiliary slider 310 with a sliding member 211 and a connecting member 212, and the sliding member 211 and the connecting member 212 are rotatably connected. When the fabric 100 slides on the slide rail, the extrusion force on both sides of the support rod 110 can be buffered by the rotation between the connecting member 212 and the sliding member 211, and at the same time, the extrusion force generated by the main slider 210 and the auxiliary slider 310 on the side wall of the slide rail can be reduced, thereby reducing the friction between the relevant slider and the slide rail, avoiding the phenomenon of jamming when the fabric 100 slides, improving the smoothness of the sliding of the slider, and avoiding damage to the slider.

[0070] Furthermore, in order to reduce the friction between the sliding member 211 and the first slide rail 200 or the second slide rail 300 to improve the smoothness of sliding of the fabric 100, in some embodiments of the present invention, the sliding member 211 further includes a sliding portion 2111, which is in sliding contact with the first slide rail 200 or the second slide rail 300.

[0071] Specifically, the first slide rail 200 is provided with a first slide groove 220, and the second slide rail 300 is provided with a second slide groove 320. The main slider 210 is slidably connected to the first slide groove 220, the auxiliary slider 310 is slidably connected to the second slide groove 320, and the sliding portion 2111 is slidably abutted against the bottom wall of the first slide groove 220 or the second slide groove 320.

[0072] Of course, the sliding portion 2111 may be a sliding wheel or a sliding plane.

[0073] Combination Figures 7 to 9 In order to facilitate the installation and disassembly of the connecting member 212 and the sliding member 211, in some embodiments of the utility model, the connecting member 212 is provided with a connecting portion 2121, and the sliding member 211 is provided with a rotating portion 2112, and the rotating portion 2112 is detachably rotatably connected to the connecting portion 2121.

[0074] Specifically, the connecting member 212 further includes a hook 2122 , and the connecting portion 2121 includes a cylindrical rod 21211 , a first limiting protrusion 21212 and a second limiting protrusion 21213 .

[0075] Among them, the first limiting protrusion 21212 and the second limiting protrusion 21213 are respectively arranged at the two ends of the cylindrical rod 21211, and the first limiting protrusion 21212 is connected to the hook 2122, so that the structure of the connecting member 212 is simpler and the manufacturing cost can be reduced.

[0076] In addition, the rotating portion 2112 includes a first clamping arm 21121 and a second clamping arm 21122 , and the first clamping arm 21121 and the second clamping arm 21122 are arranged parallel to each other.

[0077] A rotation groove 21123 is provided at the connection between the first clamping arm 21121 and the second clamping arm 21122 , and the rotation groove 21123 is rotatably connected to the cylindrical rod 21211 .

[0078] The minimum distance between the first clamping arm 21121 and the second clamping arm 21122 is smaller than the outer diameter of the cylindrical rod 21211, so that the cylindrical rod 21211 can be clamped into the rotating groove 21123 between the first clamping arm 21121 and the second clamping arm 21122, and the elastic action of the first clamping arm 21121 and the second clamping arm 21122 can be utilized to limit the cylindrical rod 21211 to be located in the rotating groove 21123, and the cylindrical rod 21211 can also be removed by prying apart the first clamping arm 21121 and the second clamping arm 21122, so that the connecting member 212 and the sliding member 211 can be quickly installed and disassembled.

[0079] Combination Figure 2 The screen curtain further includes a plurality of lower beams 600 , each of which is disposed below each piece of fabric 100 , and each of adjacent lower beams 600 is slidably connected.

[0080] The lower beam 600 can make the fabric 100 tensioned in the up and down directions, and can prevent the fabric 100 from wrinkling and becoming messy during operation. Each adjacent lower beam 600 is connected and slidable, so that each adjacent piece of fabric 100 can run regularly and have clear layers, so that multiple pieces of fabric 100 form a whole.

[0081] Combination Figure 8 and Fig. 9 In some embodiments of the present invention, the sliding member 211 is further provided with a positioning portion 2113 , and the distance rope 500 is fixed to the sliding member 211 via the positioning portion 2113 .

[0082] Among them, a positioning ball 510 is arranged on the distance rope 500, the positioning part 2113 is arranged on the top of the sliding part 211, and a positioning groove 21130 is arranged on the positioning part 2113 in a radial direction parallel to the sliding part 2111. The positioning groove 21130 extends outward to form a spherical groove 21131. The distance rope 500 passes through the positioning groove 21130, and the positioning ball 510 is arranged on the spherical groove 21131 to ensure that the distance rope 500 can be stably fixed on the sliding part 211 to avoid the distance rope 500 from loosening when the sliding part 211 slides.

[0083] Combination Figures 4 to 7 In some embodiments of the present invention, the driving mechanism 400 further includes a driving motor 420 and a driving belt 430 .

[0084] The driving belt 430 is drivingly connected to the driving block 410, and the driving motor 420 drives the driving block 410 to slide on the first slide rail 200 by driving the driving belt 430. By driving the driving block 410 through the driving belt 430, the main slider 210 and the auxiliary slider 310 can slide stably and reduce the noise during sliding.

[0085] Specifically, driving gears 240 are provided at both ends of the first slide rail 200 , and the driving motor 420 is connected to one of the driving gears 240 .

[0086] The first slide rail 200 is provided with a belt groove 230, and the driving belt 430 is arranged in the belt groove 230. The belt groove 230 can be arranged in parallel with the first slide groove 220, so that when the driving belt 430 rotates, it can better drive the driving block 410, simplifying the structure of the driving mechanism 400.

[0087] The driving belt 430 may be a toothed synchronous belt, which is connected to the driving gear 240, and the driving block 410 is a toothed driving block. When the driving motor 420 drives one of the driving gears 240 to rotate, the toothed synchronous belt also rotates in the belt groove 230, and the toothed synchronous belt drives the toothed driving block to slide in the first sliding groove 220.

[0088] The toothed synchronous belt has high transmission accuracy, which can make the sliding motion of the main slider 210 or the auxiliary slider 310 more accurate, and make the opening or closing action of the fabric 100 more precise.

[0089] Combination Figure 8 and Fig. 9 In some embodiments of the utility model, in order to make the hook 2122 more firmly connected to the support rod 110, the hook 2122 includes a first hook arm 21221 and a second hook arm 21222, and the support rod 110 is provided with a hook groove 111.

[0090] The first hook arm 21221 and the second hook arm 21222 are staggered with each other and can be hooked into the hook groove 111 , so that the hook 2122 can be more easily hung on the support rod 110 .

[0091] Of course, in the above-mentioned embodiment of the utility model, the first slide rail 200 and the second slide rail 300 can be straight or arc-shaped. When the first slide rail 200 and the second slide rail 300 are arc-shaped, the extrusion force on the first side and the second side of the support rod 110 is greater than the extrusion force on the straight first slide rail 200 and the second slide rail 300, and of course, it can also be buffered by the rotation between the connecting member 212 and the sliding member 211, so that the extrusion force generated by the main slider 210 and the auxiliary slider 310 on the side wall of the slide rail is reduced, thereby reducing the friction between the relevant slider and the slide rail, avoiding the phenomenon of jamming when the fabric 100 slides, improving the smoothness of the slider sliding, and avoiding the damage of the slider.

[0092] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0093] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0094] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A double track screen curtain, characterized in that: include: A plurality of fabrics, each of which has a support rod at the top thereof; A first slide rail is provided with a plurality of main slide blocks, each of the main slide blocks is connected by a distance rope; A second slide rail having a plurality of auxiliary slides, wherein the second slide rail is arranged parallel or concentric with the first slide rail; The first side of the support rod is connected to one of the main sliders, and the second side of the support rod is connected to one of the auxiliary sliders; A driving mechanism, including a driving block, drivingly connected to one of the main sliders; Each of the main sliders and each of the auxiliary sliders includes a sliding member and a connecting member, wherein the connecting member is rotatably connected to the sliding member, the sliding member is slidably arranged on the first slide rail or the second slide rail, and the connecting member is connected to the support rod.

2. The double track screen curtain according to claim 1, characterized in that: The sliding member includes a sliding portion, and the sliding portion is in sliding contact with the first sliding rail or the second sliding rail.

3. The double track screen curtain according to claim 1, characterized in that: The connecting member is provided with a connecting portion, and the sliding member is provided with a rotating portion, and the rotating portion is detachably rotatably connected to the connecting portion.

4. The double-track screen curtain according to claim 3, characterized in that: The connecting member includes a hook, and the connecting portion includes a cylindrical rod, a first limiting protrusion and a second limiting protrusion. The first limiting protrusion and the second limiting protrusion are respectively arranged at two ends of the cylindrical rod, and the first limiting protrusion is connected to the hook; The rotating part includes a first clamping arm and a second clamping arm parallel to each other. A rotation groove is provided at the connection between the first clamping arm and the second clamping arm, and the rotation groove is rotatably connected to the cylindrical rod. The minimum distance between the first clamping arm and the second clamping arm is smaller than the outer diameter of the cylindrical rod.

5. The double track screen curtain according to claim 1, characterized in that: It also includes a plurality of lower beams, each of which is arranged under each piece of the fabric, and each adjacent lower beam is slidably connected to each other.

6. The double track screen curtain as claimed in claim 2, characterized in that: The sliding member is provided with a positioning portion, and the distance rope is fixed to the sliding member through the positioning portion.

7. The double track screen curtain according to claim 1, characterized in that: The driving mechanism also includes a driving motor and a driving belt. The driving belt is drivingly connected to the driving block, and the driving motor drives the driving block to slide on the first slide rail by driving the driving belt.

8. The double track screen curtain according to claim 7, characterized in that: Both ends of the first slide rail are provided with driving gears, and the driving motor is connected to one of the driving gears. The first slide rail is provided with a belt groove, and the driving belt is arranged in the belt groove. The driving belt is a toothed synchronous belt, the toothed synchronous belt is connected to the driving gear, and the driving block is a toothed driving block.

9. The double-track screen curtain according to claim 4, characterized in that: The hook comprises a first hook arm and a second hook arm, and the support rod is provided with a hook groove. The first hook arm and the second hook arm are staggered with each other and are suitable for hooking into the hook groove.

10. The double-track screen curtain according to claim 8, characterized in that: The first slide rail is provided with a first slide groove, and the second slide rail is provided with a second slide groove. The main slider is slidably connected to the first sliding groove, and the auxiliary slider is slidably connected to the second sliding groove. The belt groove is arranged in parallel on both sides of the first sliding groove.

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