Wire bunching device and sun-shading device

Abstract

The invention provides a bunching device and a sunshade device, the bunching device comprises a clamping gear and a clamping block, the clamping block comprises a clamping block body, and the upper side of the clamping block body is convexly provided with first clamping teeth and second clamping teeth; the clamping block pivots relative to the wire bunching plate, so that one of the first clamping teeth and the second clamping teeth can be selectively clamped with the clamping gear, the clamping gear and the wire bunching wheel are limited to only rotate in the single direction, and the wire bunching device is simple in structure and convenient to manufacture; and the wire bunching device is simple in operation step, and the lifting rope is more convenient to retract or release.

Description

Technical Field

[0001] The present invention relates to the technical field of sunshade devices, and in particular to a cable tie and a sunshade device having the cable tie. Background Art

[0002] With the development and progress of society, curtain products are constantly being updated, and their constantly innovative designs have endowed them with widespread popularity as door and window decoration materials. Most of the curtains currently produced and sold on the market are connected to the lower end of the curtain body by a drawstring, so that the curtain body can be raised or lowered by retracting or releasing the drawstring; and the length of the drawstring is further adjusted by a cable tie to adjust the position of the lower end of the curtain body, so that the lower end of the curtain body is at a desired position or angle. However, the existing cable tie has a complex structure and is inconvenient to process; and the operation steps are complicated. It is usually necessary to retract the curtain body before adjusting the length of the drawstring through the cable tie, which makes it inconvenient for users to operate.

[0003] In addition, existing curtains have a spring mechanism built into the tube, which uses the force of a spring wound around a reel as the core power source to drive the curtain up and down. Common curtain designs often rely on a fixed single spring box structure, which has certain limitations in adjusting the spring force and has a relatively narrow adjustable range. Therefore, when faced with curtains of different materials and weights, its adaptability seems to be insufficient, and it is difficult to achieve precise matching and flexible adjustment. Summary of the invention

[0004] Therefore, in view of at least one of the above problems, the present invention provides a cable tie and a sunshade device.

[0005] The present invention is implemented by the following scheme:

[0006] The present invention provides a cable tie, which is used to connect a lifting rope of a sunshade device to the lower end of a curtain body of the sunshade device, and is characterized in that the cable tie comprises:

[0007] Cable harness board;

[0008] A cable tie wheel, the cable tie wheel is pivotally connected to the cable tie plate, the cable tie wheel comprises a wheel-shaped body, one end of the wheel-shaped body is provided with a pivot shaft, and the wheel-shaped body is positioned on one side of the cable tie plate, it is defined that the wheel-shaped body is positioned on the inner side of the cable tie plate, the pivot shaft passes through the cable tie plate, and protrudes to the outer side of the cable tie plate;

[0009] A snap-on gear, the snap-on gear being mounted on the pivot shaft, and the relative rotation between the snap-on gear and the cable tie wheel being restricted, the snap-on gear being positioned outside the cable tie plate; and

[0010] A clamping block, the clamping block is pivotally connected to the outer side of the wiring harness plate, and the clamping block is defined to be located below the clamping gear. The clamping block includes a clamping block body, and a first clamping tooth and a second clamping tooth are convexly provided on the upper side of the clamping block body; the pivoting of the clamping block relative to the wiring harness plate enables one of the first clamping tooth and the second clamping tooth to be selectively clamped with the clamping gear, thereby limiting the clamping gear and the wiring harness wheel to rotate only in a single direction.

[0011] In one embodiment, when the first engaging tooth is engaged with the engaging gear, the engaging gear and the cable tie wheel can only rotate along the first direction; when the second engaging tooth is engaged with the engaging gear, the engaging gear and the cable tie wheel can only rotate along the second direction, and the first direction and the second direction are opposite to each other.

[0012] In one embodiment, the clamping block pivots relative to the cable tie plate around a central axis, and the first clamping teeth and the second clamping teeth are distributed on both sides of the central axis.

[0013] In one embodiment, the cable harness further includes a pushing member and an elastic member; a pushed protrusion is provided on the lower side of the clamping block body, and the pushed protrusion has a first side surface and a second side surface which are inclined to each other; the pushing member is provided below the clamping block, and the elastic member abuts against the pushing member and pushes the pushing member toward the clamping block; the pushing member can selectively abut against the first side surface or the second side surface of the clamping block; when the pushing member abuts against the first side surface of the clamping block, the clamping state of the second clamping tooth and the clamping gear can be maintained; when the pushing member abuts against the second side surface of the clamping block, the clamping state of the first clamping tooth and the clamping gear can be maintained.

[0014] In one embodiment, the wiring harness plate is provided with an installation cavity, and the push member and the elastic member are movably arranged in the installation cavity; the wiring harness plate includes a wiring harness plate body, and the outer side of the wiring harness plate body is connected to a installation block, the installation cavity is formed in the installation block, and the top surface of the installation block is a concave arc.

[0015] In one embodiment, the cable harness further comprises a rotating member, the rotating member is fixedly connected to the end of the pivot shaft, and the rotating member is installed on the outside of the engaging gear; the rotating member is wheel-shaped, and anti-slip teeth are provided on the outer periphery of the rotating member.

[0016] In one embodiment, the wire harness plate includes a wire harness plate body, and a left widening portion and a right widening portion are provided on the left and right sides of the wire harness plate body, and the wire harness plate body has a left transition surface and a right transition surface, so that the width of the wire harness plate body at the left transition surface and the right transition surface increases from top to bottom.

[0017] In one embodiment, a winding groove is provided on the outer peripheral surface of the wheel-shaped body along the circumferential direction, and the winding groove is approximately located in the middle of the wheel-shaped body. The wheel-shaped body is also provided with a wire fixing hole penetrating the bottom surface of the winding groove.

[0018] In one embodiment, the cable tie plate comprises a flat cable tie plate body, and a hook portion is provided at the lower end of the cable tie plate body.

[0019] The present invention further provides a sunshade device, characterized in that it comprises at least a cable tie as described in any of the preceding items.

[0020] In one embodiment, the sunshade device further comprises a through-axis spring structure, and the through-axis spring structure comprises:

[0021] The upper rail assembly comprises an upper rail, a wire-retracting and -releasing module mounted on the bottom surface of the upper rail, and a driving shaft rotatably connected to the wire-retracting and -releasing module;

[0022] At least one spring box is detachably connected to the bottom surface of the upper rail; the spring box includes a shell, a first connecting structure connected to the shell, and a second connecting structure; the first connecting structure is arranged corresponding to the second connecting structure, and the first connecting structure and the second connecting structure can be installed and connected to each other, so as to realize the fixed connection of the two spring boxes.

[0023] The technical solution provided by the present invention has the following technical effects:

[0024] 1. The present invention provides a cable tie, comprising a locking gear and a locking block, the locking block comprising a locking block body, the upper side of the locking block body is convexly provided with a first locking tooth and a second locking tooth; the pivoting of the locking block relative to the cable tie plate can make one of the first locking tooth and the second locking tooth selectively engage with the locking gear, thereby limiting the locking gear and the cable tie wheel to rotate only in a single direction. The cable tie has a simple structure and is easy to manufacture; and the operating steps of the cable tie are simple, making it more convenient to fold or release the lifting rope.

[0025] 2. The present invention also provides a sunshade device, including a through-axis spring structure, the through-axis spring structure includes at least one spring box detachably connected to the bottom surface of the upper rail; the spring box includes a shell, a first connecting structure connected to the shell, and a second connecting structure; the first connecting structure is arranged corresponding to the second connecting structure, and the first connecting structure and the second connecting structure can be installed and connected to each other, so as to achieve a fixed connection between the two spring boxes; the above-mentioned through-axis spring structure has a simple structure and is easy to use. A plurality of spring boxes can be spliced ​​and installed, and different elastic force ranges can be effectively selected, so as to flexibly adapt to curtains of different materials and different weights; the splicing of a plurality of spring boxes is more convenient, and at the same time, the position of the lifting rope is also convenient to adjust, so as to adapt to curtains of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional diagram of a sunshade device according to an embodiment of the present invention;

[0027] Figure 2 is a three-dimensional diagram of the sunshade device of the embodiment from another direction;

[0028] Figure 3 is a stereoscopic diagram of the cable harness of the embodiment;

[0029] Figure 4 is an exploded view of the cable harness of this embodiment;

[0030] Figure 5 is a three-dimensional diagram of the wiring harness plate of this embodiment;

[0031] Figure 6 is a three-dimensional diagram of the engaging gear of the embodiment;

[0032] Figure 7 is a three-dimensional diagram of the clamping plate of this embodiment;

[0033] Figure 8 is a stereoscopic view of the cable tie wheel of the embodiment;

[0034] Fig. 9 is a three-dimensional view of the cable tie wheel of the embodiment from another direction;

[0035] Fig.10 is a stereoscopic view of the cable tie wheel of the embodiment;

[0036] Fig.11 A three-dimensional diagram of the through-axis spring structure of the embodiment of the present invention;

[0037] Fig.12 A three-dimensional diagram of the through-axis spring structure of the embodiment from another perspective;

[0038] Fig.13 It is a partial exploded view of the through-axis spring structure of this embodiment;

[0039] Fig.14 for Fig.13 An enlarged view of circle A is shown;

[0040] Fig.15 It is a three-dimensional diagram of two spring boxes spliced ​​in the same direction in the through-axis spring structure of this embodiment;

[0041] Fig.16 1 is an exploded view of the spring box of this embodiment. DETAILED DESCRIPTION

[0042] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0043] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0044] Reference Figure 1-Figure 16 The present embodiment provides a sunshade device 1, which is, for example, a curtain. The sunshade device 1 includes an upper rail assembly 10, a bearing plate 20, a spring box 30, a lifting cord 40, a curtain body 50, a cable tie 60, and a positioning ring 70, wherein the spring box 30 is provided with at least one, and the bearing plate 20 is installed at the bottom of the upper rail assembly 10. The upper rail assembly 10, the bearing plate 20, and the spring box 30 constitute a through-axis spring structure of the sunshade device 1.

[0045] Reference Figure 1-Figure 10 The upper rail assembly 10 includes an upper rail 11, a retractable wire module 12 installed on the bottom surface of the upper rail 11, and a drive shaft 13 rotatably connected to the retractable wire module 12; the cross section of the drive shaft 13 is non-circular. For example, in this embodiment, the cross section of the drive shaft 13 is hexagonal; the retractable wire module 12 is provided with two and is installed at opposite ends of the bottom surface of the upper rail 11. The drive shaft 13 is passed through the retractable wire module 12 and the spring box 30, and the spring box 30 is provided with a spiral spring. The spring box 30 can provide resistance for the descent of the curtain body 50, and can provide power for the rise of the curtain body 50.

[0046] See also Figure 1 , Figure 2The lifting cord 40 can be gradually wound and retracted by the retracting and releasing wire module 12, so that the curtain body 50 is folded. The curtain body 50 includes a bottom rod 51 arranged at the lower end, and the bottom rod 51 can increase the overall weight of the curtain body 50, so that the curtain body 50 can stay at a desired height more easily. The lower end of the lifting cord 40 is connected to a cable tie 60, and the cable tie 60 is fixedly connected to the bottom rod 51.

[0047] When the bottom rod 51 of the curtain body 50 in the retracted state or partially retracted state is pulled down, the curtain body 50 unfolds from top to bottom, the bottom of the curtain body 50 moves downward with the bottom rod 51, and the two lifting ropes 40 are released from the retractable line module 12, so that the curtain body 50 unfolds.

[0048] A positioning ring 70 may be fixed on the surface of the curtain body 50, and the lifting cord 40 is passed through the positioning ring 70. The positioning ring 70 can position and guide the position of the lifting cord 40 relative to the curtain body 50. The installation position of the retractable wire module 12 on the bottom surface of the upper rail 11 is adjustable, so that the position of the lifting cord 40 can be easily adjusted, and it can be adapted to curtains of different specifications.

[0049] Reference Figure 1-Figure 10 The cable tie 60 is used to connect the lifting rope 40 of the sunshade device 1 to the lower end of the curtain body 50 of the sunshade device 1. The cable tie 60 includes a cable tie plate 61, a cable tie wheel 62, a clamping gear 63, a clamping block 68, a push member 65, an elastic member 66, a rotating member 67, a gasket 69, a first screw 641 and a second screw 642.

[0050] The cable tie plate 61 includes a flat cable tie plate body 611, which is provided with a mounting hole 617 for inserting a screw, so as to fix the cable tie plate body 611 to the bottom rod 51. The lower end of the cable tie plate body 611 is provided with a hook portion 618, which can be hooked and matched with the bottom of the bottom rod 51, so that the cable tie 60 is more firmly connected to the bottom rod 51.

[0051] The cable tie plate body 611 is also provided with a pivot hole 615, and the cable tie wheel 62 includes a wheel-shaped body 621, and one end of the wheel-shaped body 621 is provided with a pivot shaft 625, and the pivot shaft 625 is pivotally matched with the pivot hole 615, so that the cable tie wheel 62 is pivotally connected to the cable tie plate 61, and the wheel-shaped body 621 is positioned at one side of the cable tie plate 61. The wheel-shaped body 621 is defined to be positioned at the inner side of the cable tie plate 61. The pivot shaft 625 passes through the cable tie plate 61 and protrudes to the outer side of the cable tie plate 61. The outer peripheral surface of the wheel-shaped body 621 is provided with a winding groove 622 along the circumferential direction, and the winding groove 622 is approximately located in the middle of the wheel-shaped body 621. The winding groove 622 can be used to wind the lifting rope 40. The wheel-shaped body 621 is further provided with a wire fixing hole 623 penetrating the bottom surface of the winding groove 622 . The wire fixing hole 623 can be used to fix the end of the lifting rope 40 , thereby making it easier to wind the lifting rope 40 around the winding groove 622 .

[0052] Reference Figure 3-Figure 10 , the snap-in gear 63 is mounted on the pivot shaft 625, and the relative rotation between the snap-in gear 63 and the cable tie wheel 62 is restricted. Specifically, a limiting portion 6251 is provided at one end of the pivot shaft 625 away from the wheel-shaped body 621, and the cross-section of the limiting portion 6251 is non-circular. For example, in the present embodiment, the cross-section of the limiting portion 6251 is quadrilateral. A snap-in hole 631 is provided in the middle of the snap-in gear 63, and the snap-in hole 631 is adapted to the shape of the limiting portion 6251. In the present embodiment, the cross-section of the snap-in hole 631 is quadrilateral. The snap-in hole 631 can be sleeved and matched with the limiting portion 6251, thereby limiting the relative rotation of the snap-in gear 63 and the cable tie wheel 62. When the cable tie wheel 62 is assembled on the cable tie plate 61 , the limiting portion 6251 protrudes to the outer side of the cable tie plate 61 away from the inner side of the cable tie plate 61 , and the engaging gear 63 is positioned on the outer side of the cable tie plate 61 .

[0053] The clamping block 68 is pivotally connected to the wire harness plate 61, and the clamping block 68 is positioned on the outside of the wire harness plate 61. A pivoting boss 614 is provided on the outside of the wire harness plate body 611, and a pivoting mating hole 682 is provided in the middle of the clamping block 68. The pivoting mating hole 682 can be pivotally mated with the pivoting boss 614, so as to realize the pivotal connection of the clamping block 68 to the wire harness plate 61. A second threaded hole 616 is provided at one end of the pivoting boss 614, and a second screw 642 can be threadedly mated with the clamping block mounting hole 616. The second screw 642 is passed through the gasket 69, so as to position and install the clamping block 68 on the outside of the wire harness plate 61.

[0054] The clamping block 68 includes a plate-shaped clamping block body 681, and the length of the clamping block body 681 is significantly greater than the width, so that the clamping block body 681 is narrow and long. The clamping block 68 is defined to be located below the clamping gear 63, and the upper side of the clamping block body 681 is convexly provided with a first clamping tooth 683 and a second clamping tooth 684. The clamping block 68 pivots around a central axis relative to the wiring harness plate 61, and the first clamping tooth 683 and the second clamping tooth 684 are distributed on both sides of the central axis. In this embodiment, the central axis is the central axis of the pivot boss 614. The pivoting of the clamping block 68 relative to the wiring harness plate 61 enables one of the first clamping tooth 683 and the second clamping tooth 684 to be selectively clamped with the clamping gear 63. When one of the first engaging tooth 683 and the second engaging tooth 684 engages with the engaging gear 63, the engaging block 68 restricts the engaging gear 63 from rotating in only one direction, thereby restricting the cable tie wheel 62 from rotating in only one direction. Specifically, when the first engaging tooth 683 engages with the engaging gear 63, the engaging gear 63 and the cable tie wheel 62 can only rotate in the first direction; when the second engaging tooth 684 engages with the engaging gear 63, the engaging gear 63 and the cable tie wheel 62 can only rotate in the second direction, and the first direction and the second direction are opposite to each other.

[0055] A pushed convex portion 685 is provided on the lower side of the clamping block body 681, which is away from the upper side. The pushed convex portion 685 has a first side surface 686 and a second side surface 687 which are arranged obliquely to each other. A push member 65 is provided below the clamping block 68. The elastic member 66 abuts against the push member 65 and pushes the push member 65 toward the clamping block 68. The push member 65 can selectively abut against the first side surface 686 or the second side surface 687 of the clamping block 68, and can maintain the clamping state of one of the first clamping tooth 683 and the second clamping tooth 684 with the clamping gear 63. Specifically, when the push member 65 abuts against the first side surface 686 of the clamping block 68, the second clamping tooth 684 is clamped with the clamping gear 63 and the clamping state of the two can be maintained. When the pushing member 65 abuts against the second side surface 687 of the engaging block 68 , the first engaging tooth 683 engages with the engaging gear 63 and the engaging state of the two can be maintained.

[0056] Reference Figure 3-Figure 10 , the harness plate 61 is provided with a mounting cavity 613, and the push piece 65 and the elastic piece 66 are movably arranged in the mounting cavity 613. In this embodiment, the elastic piece 66 is a spring, and the outer side of the harness plate body 611 is connected with a mounting block 612, and the mounting cavity 613 is formed in the mounting block 612. The top surface of the mounting block 612 is in an inwardly concave arc shape, so that it can adaptively avoid the lower end movement trajectory of the pushed protrusion 685, and can better keep the push piece 65 in the mounting cavity 613 without falling out.

[0057] The rotating member 67 is fixedly connected to the end of the pivot shaft 625, and the rotating member 67 is installed on the outer side of the snap-on gear 63. In this embodiment, the rotating member 67 is fixedly connected to the end of the limiting portion 6251. The inner side of the rotating member 67 is provided with a snap-fitting groove 673, and the snap-fitting groove 673 is adapted to the outer shape of the limiting portion 6251 of the cable wheel 62. In this embodiment, the cross-section of the snap-fitting groove 673 is set in a quadrilateral. The snap-fitting groove 673 is sleeved on the end of the limiting portion 6251, so that the relative rotation of the rotating member 67 and the cable wheel 62 is limited. The end of the limiting portion 6251 is also provided with a first threaded hole 627, and the first threaded hole 627 can be installed and matched with the first screw 641, so that the rotating member 67 is fixedly connected to the end of the limiting portion 6251. In this embodiment, the inner side of the rotating member 67 is provided with an extension boss 672, and the snap-fitting groove 673 is formed in the extension boss 672. The rotating member 67 is penetrated by an outer through hole 674 for penetrating the first threaded hole 627 .

[0058] When in use, the clamping block 68 is rotated by hand so that one of the first clamping tooth 683 and the second clamping tooth 684 is clamped with the clamping gear 63, so as to adjust the clamping gear 63 and the cable tie wheel 62 to rotate only in the second direction or one of the second directions, so as to meet the needs of users to collect or release the line. After the clamping block 68 is adjusted to the right position, the rotating member 67 is rotated by hand to drive the cable tie wheel 62 to rotate, and then one end of the lifting rope 40 is retracted or released, so as to adjust the lower end position of the curtain body 50 so that the lower end of the curtain body 50 is at a desired position or angle. The cable tie 60 has a simple structure and is easy to manufacture; the cable tie 60 has simple operating steps, and it is more convenient to retract or release the lifting rope 40.

[0059] In this embodiment, the end of the clamping block body 681 is rounded, so that the hand feel of rotating the clamping block 68 is better. The rotating member 67 is wheel-shaped, and the outer periphery of the rotating member 67 is provided with anti-slip teeth 675, so as to enhance the friction when the rotating member 67 is rotated by hand.

[0060] Furthermore, a left widened portion 6112 and a right widened portion 6113 are provided on the left and right sides of the wiring harness plate body 611, and the wiring harness plate body 611 has a left transition surface 6114 and a right transition surface 6115, so that the width of the wiring harness plate body 611 at the left transition surface 6114 and the right transition surface 6115 increases from top to bottom, and the left transition surface 6114 and the right transition surface 6115 can be a plane or a curved surface or a combination of a plane and a curved surface; when the clamping block 68 is rotated by hand, the left transition surface 6114 or the right transition surface 6115 can be used to cooperate and leverage, thereby making it easier to rotate the clamping block 68.

[0061] Reference Figure 1-Figure 16The spring box 30 includes a shell, a first connection structure 34 connected to the shell, and a second connection structure 36; in this embodiment, the shell includes a box body 31, and a cover plate 32 matched with the box body 31. The first connection structure 34 and the second connection structure 36 are arranged correspondingly, and the first connection structure 34 and the second connection structure 36 can be installed and connected to each other, so as to achieve a fixed connection between the two spring boxes 30. In this embodiment, the first connection structure 34 is a positioning seat 34, and the second connection structure 36 is a lug 36, and the positioning seat 34 and the lug 36 can be installed and connected. In some other embodiments, the first connection structure 34 and the second connection structure 36 can also be two buckle structures that can match each other.

[0062] In this embodiment, the spring box 30 is provided with two alignment seats 34 and two lugs 36, the two alignment seats 34 are connected to the opposite sides of the box body 31 away from the cover plate 32, and the two lugs 36 are connected to the opposite sides of the cover plate 32. The alignment seats 34 correspond to the lugs 36, and when the two spring boxes 30 are spliced ​​in the same direction, the box body 31 of one spring box 30 abuts against the cover plate 32 of the other spring box 30. At this time, the lugs 36 are screwed into the alignment seats 34 by screwing them through the lugs 36, so that the alignment seats 34 and the lugs 36 are installed and connected, and the two spring boxes 30 can be fixedly connected.

[0063] The spring box 30 also includes a first balance wheel 37 rotatably mounted on the top end of the box body 31, a second balance wheel 38 rotatably mounted on the bottom end of the box body 31, and a spiral spring (not shown) connecting the first balance wheel 37 and the second balance wheel 38; the spiral spring is arranged in an S shape, one end of the spiral spring is fixedly connected to the first balance wheel 37, and the other end of the spiral spring is fixedly connected to the second balance wheel 38, so that the first balance wheel 37 and the second balance wheel 38 rotate in opposite directions.

[0064] The driving shaft 13 is coaxially provided with the first balancing wheel 37 to drive the first balancing wheel 37 to rotate synchronously. Specifically, the first balancing wheel 37 is provided with an axial hole 370 along its axial centerline direction, and the opening shape of the axial hole 370 matches the cross-sectional shape of the driving shaft 13, so that the driving shaft 13 can drive the first balancing wheel 37 to rotate synchronously.

[0065] like Fig.13 and Fig.14 As shown, the spring box 30 is detachably connected to the bottom surface of the upper rail 11. A receiving groove 14 is recessed inwardly along the length direction of the upper rail 11 in the middle of the bottom surface of the upper rail 11, and a plurality of assembly holes 15 are respectively provided on the upper rail 11 at opposite sides corresponding to the receiving groove 14. The receiving groove 14 and the assembly holes 15 are used to position and connect the carrier plate 20.

[0066] The middle part of the side of the carrier plate 20 facing the upper rail 11 is provided with a boss 21 along the length direction of the carrier plate 20, and the boss 21 is matched with the receiving groove 14. The carrier plate 20 is provided with a plurality of slots 22 on opposite sides corresponding to the boss 21, and the slots 22 correspond to the assembly holes 15 one by one. The carrier plate 20 can be fixedly mounted on the bottom surface of the upper rail 11 by passing bolts through the slots 22 and then screwing them into the inside of the assembly holes 15.

[0067] Two T-slots 23 are arranged side by side on a side of the bearing plate 20 facing away from the upper rail 11 . The two T-slots 23 are arranged along the length direction of the bearing plate. The T-slots 23 are used to carry and connect the spring box 30 .

[0068] In this embodiment, the spring box 30 also includes a first foot 33 connected to opposite sides of the top surface of the box body 31 and a second foot 35 connected to opposite sides of the top surface of the cover plate 32. The first foot 33 is arranged in a T shape, and the first foot 33 matches and connects the T-slot 23 to achieve a detachable connection between the box body 31 and the carrier plate 20; the second foot 35 is arranged in a T shape, and the second foot 35 matches and connects the T-slot 23 to achieve a detachable connection between the cover plate 32 and the carrier plate 20, so as to achieve a detachable connection between the spring box 30 and the bottom surface of the upper rail 11. In actual use, different numbers of spring boxes 30 can be installed on the carrier plate 20 according to needs, so as to effectively select different elastic force ranges and flexibly adapt to curtains of different materials and weights. Of course, in some other embodiments, other detachable structures, such as buckle connection, can be used between the spring box 30 and the bottom surface of the upper rail 11.

[0069] The above-mentioned through-axis spring structure of this embodiment has a simple structure and is easy to use. Multiple spring boxes 30 can be spliced ​​and installed on the bottom surface of the upper rail 11, effectively selecting different elastic force ranges, and flexibly adapting to curtains of different materials and different weights. The driving shaft 13 is a single one, and the single driving shaft 13 is inserted through the retractable wire module 12 and the spring box 30. Compared with some other embodiments, the driving shaft 13 is spliced ​​by multiple sections. In the scheme of this embodiment, a through-axis structure with a single driving shaft 13 is adopted, which has a high load-bearing capacity, and the splicing of multiple spring boxes 30 is also more convenient; at the same time, the position of the lifting rope 40 is also convenient to adjust, which can adapt to curtains of different specifications.

[0070] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A cable tie, which is used to connect the lifting rope of a sunshade device to the lower end of a curtain body of the sunshade device, characterized in that: The cable tie comprises: Cable harness board; A cable tie wheel, the cable tie wheel is pivotally connected to the cable tie plate, the cable tie wheel comprises a wheel-shaped body, one end of the wheel-shaped body is provided with a pivot shaft, and the wheel-shaped body is positioned on one side of the cable tie plate, it is defined that the wheel-shaped body is positioned on the inner side of the cable tie plate, the pivot shaft passes through the cable tie plate, and protrudes to the outer side of the cable tie plate; A snap-on gear, the snap-on gear being mounted on the pivot shaft, and the relative rotation between the snap-on gear and the cable tie wheel being restricted, the snap-on gear being positioned outside the cable tie plate; and A clamping block, the clamping block is pivotally connected to the outer side of the wiring harness plate, and the clamping block is defined to be located below the clamping gear. The clamping block includes a clamping block body, and a first clamping tooth and a second clamping tooth are convexly provided on the upper side of the clamping block body; the pivoting of the clamping block relative to the wiring harness plate enables one of the first clamping tooth and the second clamping tooth to be selectively clamped with the clamping gear, thereby limiting the clamping gear and the wiring harness wheel to rotate only in a single direction.

2. The cable tie according to claim 1, characterized in that: When the first engaging tooth is engaged with the engaging gear, the engaging gear and the cable tie wheel can only rotate along the first direction; when the second engaging tooth is engaged with the engaging gear, the engaging gear and the cable tie wheel can only rotate along the second direction, and the rotation directions of the first direction and the second direction are opposite.

3. The cable tie according to claim 1, characterized in that: The clamping block pivots relative to the cable tie plate around a central axis, and the first clamping teeth and the second clamping teeth are distributed on both sides of the central axis.

4. The cable tie according to claim 1, characterized in that: The cable harness also includes a pushing piece and an elastic piece; a pushed convex portion is provided on the lower side of the clamping block body, and the pushed convex portion has a first side surface and a second side surface which are arranged obliquely to each other; the pushing piece is provided under the clamping block, and the elastic piece abuts against the pushing piece and pushes the pushing piece toward the clamping block; the pushing piece can selectively abut against the first side surface or the second side surface of the clamping block; when the pushing piece abuts against the first side surface of the clamping block, the clamping state of the second clamping tooth and the clamping gear can be maintained; when the pushing piece abuts against the second side surface of the clamping block, the clamping state of the first clamping tooth and the clamping gear can be maintained.

5. The cable tie according to claim 4, characterized in that: The wire harness plate is provided with an installation cavity, and the push piece and the elastic piece are movably arranged in the installation cavity; the wire harness plate includes a wire harness plate body, and the outer side of the wire harness plate body is connected to a mounting block, the installation cavity is formed in the mounting block, and the top surface of the mounting block is a concave arc.

6. The cable tie according to claim 1, characterized in that: The cable harness also includes a rotating member, which is fixedly connected to the end of the pivot shaft and installed on the outside of the clamping gear; the rotating member is wheel-shaped, and anti-slip teeth are arranged on the outer periphery of the rotating member.

7. The cable tie according to claim 1, characterized in that: The wiring harness plate comprises a wiring harness plate body, and a left widening portion and a right widening portion are provided on the left and right sides of the wiring harness plate body. The wiring harness plate body has a left transition surface and a right transition surface, so that the width of the wiring harness plate body at the left transition surface and the right transition surface increases from top to bottom.

8. The cable tie according to claim 1, characterized in that: The outer peripheral surface of the wheel-shaped body is provided with a winding groove along the circumferential direction, and the winding groove is approximately located in the middle of the wheel-shaped body. The wheel-shaped body is also provided with a wire fixing hole penetrating the bottom surface of the winding groove.

9. The cable tie according to claim 1, characterized in that: The cable tie plate comprises a flat cable tie plate body, and a hook portion is provided at the lower end of the cable tie plate body.

10. A sunshade device, characterized in that: At least comprises the cable tie as described in any one of claims 1-9.

11. The sunshade device according to claim 10, characterized in that: The sunshade device further comprises an axle-through spring structure, and the axle-through spring structure comprises: The upper rail assembly comprises an upper rail, a wire-retracting and -releasing module mounted on the bottom surface of the upper rail, and a driving shaft rotatably connected to the wire-retracting and -releasing module; At least one spring box is detachably connected to the bottom surface of the upper rail; the spring box includes a shell, a first connecting structure connected to the shell, and a second connecting structure; the first connecting structure is arranged corresponding to the second connecting structure, and the first connecting structure and the second connecting structure can be installed and connected to each other, so as to realize the fixed connection of the two spring boxes.

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