A positive and negative rotation elastic cord device

Abstract

This invention relates to the field of daily necessities technology and discloses a reversible rope tightening and loosening device, including a knob, a ratchet disc, a wheel chamber, a clutch, and a reel. The invention, through the assembly of the knob, ratchet disc, wheel chamber, clutch, and reel, allows for tightening and loosening of the rope by rotating the knob in either direction. After the two ends of the rope are wound into the groove through the rope threading hole from the threading platform, the tightening and loosening states can be switched by rotating the knob in either direction. When the knob is rotated in the forward direction, the clutch engages with the reel, thus driving the reel to rotate in the forward direction to establish a tightened state. When the knob is rotated in the reverse direction, the elastic deformation of the clutch causes the wedge-shaped stop of the clutch to disengage from the inner circumference of the reel, allowing the reel to rotate freely and establishing a loosened state. This device has tightening, loosening, and rewinding states, making it convenient for daily use and possessing high practical value.

Description

Technical Field

[0001] This invention relates to the field of daily necessities technology, specifically to a reversible elastic cord device. Background Technology

[0002] In daily life, securing items with laces is a common method used in footwear, medical protective gear, and other everyday items. Take shoes as an example: when using athletic shoes or canvas shoes, the laces are typically threaded through eyelets and secured with a bow or other knot. During exercise, these laces can easily loosen, which is inconvenient, especially when walking or carrying heavy items and needing to be tightened. Furthermore, a loose lace during exercise can easily lead to accidents.

[0003] Currently, a few daily necessities on the market feature elastic cords, but their complex structures and numerous small components result in complicated manufacturing processes, hindering rapid assembly. This leads to high production costs, weak structural stability, high scrap rates, and unsatisfactory performance. During use, the forced release mechanism is complex to operate; after tightening the cord, the mechanism can only be released by pulling upwards, and the tightening and loosening processes are not continuous, preventing fine-tuning of the cord's tension. Due to the complex mechanical structure and space constraints, the small size of the components makes them extremely prone to breakage, leading to safety issues such as sudden cord loosening, cord entanglement, or mechanism disintegration. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a forward and reverse tensioning rope device that can tighten and loosen the rope by rotating in both directions, which greatly improves efficiency and is convenient to use.

[0005] The technical solution adopted in this invention is as follows: a forward and reverse tensioning rope device, comprising a knob, a pawl disc, a wheel chamber, a clutch, and a spool; the inner surface of the knob is provided with control ribs arranged at intervals around the center of the knob; the outer periphery of the pawl disc is provided with a plurality of pawl arms arranged around its circumference, the outer periphery of the ends of the pawl arms is provided with pawl teeth, and the pawl disc is also provided with an arc-shaped groove for the control ribs to pass through, rotating the knob can move the control ribs along the arc-shaped groove; the surface of the pawl disc opposite to the knob is also provided with two pairs of square grooves arranged perpendicularly to each other; the inner wall of the upper end of the wheel chamber is provided with ratchet teeth that mesh with the pawl teeth, and the lower end of the wheel chamber is provided with a receiving cavity for accommodating the spool, and the side of the receiving cavity near the ratchet teeth is provided with symmetrically arranged triangular buckles.

[0006] The clutch component includes a clutch ring capable of elastic deformation along its radial direction. Positioning blocks are provided on the outer side of the clutch ring corresponding to each square groove position. The positioning blocks can slide and engage with the square grooves. A pair of oppositely arranged positioning blocks are provided with wedge-shaped stops on their outer sides, and another oppositely arranged positioning block is provided with an elastic arm on its outer side. The end of the wedge-shaped stops extends out of the outer periphery of the ratchet disc, and the end of the elastic arm can abut against the two triangular buckles during the rotation of the clutch ring.

[0007] The spool is rotatably mounted in the receiving cavity from the lower end of the spool chamber, and the inner circumferential wall of the upper end of the spool is provided with circumferential teeth that mesh with the end of the wedge-shaped stop. When the clutch ring undergoes elastic deformation and shrinks, the wedge-shaped stop can separate from the circumferential teeth.

[0008] In this technical solution, the assembly of a knob, ratchet disc, wheel housing, clutch, and reel allows for easy tightening and loosening of the tether by simply rotating the knob in both directions, making it quicker and more convenient to use. The knob and ratchet disc work together to control the rib position, allowing it to engage with the corresponding arc-shaped groove. The ratchet disc is mounted on the upper end of the wheel housing, allowing the ratchet teeth to mesh with the ratchet teeth on the upper end of the housing. The reel is inserted into the receiving cavity from the lower end of the wheel housing. The clutch, a flexible clutch ring, is installed between the ratchet disc and the reel. The positioning block on the outer side of the clutch ring engages with the lower part of the ratchet disc. The square groove at the end slides into the locating block, and a pair of wedge-shaped stops on the locating block engage with the circumferential teeth of the spool. The elastic arm abuts against the triangular buckle in the spool chamber when the clutch rotates. During use, the spool can be switched between tight and loose states by rotating the knob clockwise or counterclockwise. When the knob is rotated clockwise, the clutch engages with the spool, causing the spool to rotate clockwise to establish a tight state. When the knob is rotated counterclockwise, the elastic deformation of the clutch disengages the wedge-shaped stops from the circumferential teeth of the spool, allowing the spool to rotate freely and establish a loose state. This technical solution provides tight, loose, and untethered states, facilitating daily use.

[0009] Furthermore, the knob is provided with anti-slip textures arranged around its outer periphery.

[0010] Furthermore, the outer periphery of the wheel well is provided with a fixed annular protrusion arranged around the wheel well, and the knob is fitted into the inner wall of the upper end of the wheel well with a fixed buckle, which can be engaged below the fixed annular protrusion to prevent the knob from falling off.

[0011] Furthermore, the wheel chamber has a rope-threading platform arranged at intervals around the outer periphery of the corresponding receiving cavity, the outer periphery of the spool has a circumferentially arranged spool, the surface of the spool has a rope-threading hole corresponding to each rope-threading platform, and the spool has a rope-threading channel communicating with the rope-threading hole, the rope-threading channel being arranged in a U-shape.

[0012] Furthermore, the inner side of the lower end of the wheel chamber is provided with a positioning buckle arranged opposite to it, and the outer periphery of the spool is provided with a clearance groove that moves in conjunction with the positioning buckle. When the clearance groove of the spool is aligned with the positioning buckle, it can be inserted into the receiving cavity, and at the same time, the rope threading platform and the rope threading hole can be aligned.

[0013] Furthermore, the lower outer periphery of the wheel well is provided with fixed card platforms arranged opposite to each other, one large and one small, and the end face of the wheel well is provided with strip-shaped markings on both sides corresponding to the larger fixed card platform.

[0014] Furthermore, the lower end face of the reel is provided with observation holes on both sides of one of the clearance slots, and positioning marks are provided on both sides of the other clearance slot, the positioning marks being able to be directly opposite the bar mark.

[0015] Furthermore, it also includes a base, the upper end of which is provided with a fixing ring platform, the bottom of which is provided with an installation slot that fits into the fixing card platform, and the fixing ring platform is also provided with a rope threading slot arranged opposite to the rope threading platform.

[0016] Furthermore, the base is provided with a clearance groove at the bottom of the corresponding fixing ring to accommodate the positioning buckle.

[0017] Furthermore, the upper end of the fixed ring platform is provided with a disassembly slot above the mounting groove.

[0018] The beneficial effects of this invention are as follows: This invention, through the assembly of a knob, ratchet disc, wheel chamber, clutch, and reel, enables the tightening and loosening of the rope by simply rotating the knob in both directions. After the two ends of the rope are wound into the groove through the rope threading hole from the rope threading platform, the tightening and loosening states can be switched by rotating the knob in either direction. When the knob is rotated in the forward direction, it drives the ratchet disc and clutch to rotate in the forward direction. Since the clutch is engaged with the reel, the reel rotates in the forward direction to establish a tightened state. When the knob is rotated in the reverse direction, it drives the ratchet disc to rotate, and the clutch undergoes elastic deformation due to frictional resistance, causing the wedge-shaped stop to disengage from the inner circumference of the reel, allowing the reel to rotate freely and thus establishing a loosened state. This device has tightening, loosening, and rewinding states, making it convenient for users in daily use and possessing high practical value. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 A perspective view of the knob of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0021] Figure 2 The ratchet disc of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention is a three-dimensional representation. Figure 1 .

[0022] Figure 3 The ratchet disc of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention is a three-dimensional representation. Figure 2 .

[0023] Figure 4 A perspective view of the clutch component of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0024] Figure 5 The wheel chamber three-dimensional of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention Figure 1 .

[0025] Figure 6 The wheel chamber three-dimensional of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention Figure 2 .

[0026] Figure 7 The three-dimensional reel of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention Figure 1 .

[0027] Figure 8 The three-dimensional reel of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention Figure 2 .

[0028] Figure 9 A perspective view of the base of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0029] Figure 10 A perspective view of the ratchet disc and clutch of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0030] Figure 11 A perspective view of the ratchet disc and wheel chamber of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0031] Figure 12 A perspective view of the clutch and wheel chamber of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0032] Figure 13 The reel and the pulley housing of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention are in three-dimensional cooperation. Figure 1 .

[0033] Figure 14 The reel and the pulley housing of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention are in three-dimensional cooperation. Figure 2 .

[0034] Figure 15 This is a perspective view of the assembly of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0035] Figure 16 A schematic diagram of the rope threading of the forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0036] Figure 17 An exploded view of a forward and reverse tensioning rope device provided in a specific embodiment of the present invention.

[0037] Reference numerals: Knob 100, Bone position control 110, Fixing buckle 120, Pawl disc 200, Pawl arm 210, Pawl tooth 211, Arc groove 220, Square groove 230, Wheel compartment 300, Pawl tooth 310, Rope threading platform 320, Triangular buckle position 330, Fixing ring protrusion 340, Fixing platform 350, Positioning buckle position 360, Strip mark 370, Clutch 400, Clutch ring 410, Wedge block 421, Elastic forearm 422, Thread wheel 500, Circumferential tooth 510, Thread groove 520, Rope threading hole 530, Observation hole 540, Rope threading channel 541, Clearance groove 550, Positioning mark 560, Base 600, Fixing ring platform 610, Mounting slot 620, Rope threading slot 630, Removal slot 640. Detailed Implementation

[0038] It should be noted here that the functions and methods involved in this invention are merely conventional adaptations of existing technologies. Therefore, the improvement of existing technologies by this invention essentially lies in the connection relationships between hardware components. The description of the functions and methods in this invention is for the purpose of better illustrating and understanding the invention.

[0039] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0040] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0041] Example 1

[0042] like Figures 1 to 9As shown, Embodiment 1 provides a forward and reverse tensioning rope device for tightening and feeding ropes by rotating in both directions. Specifically, it includes a knob 100, a pawl disc 200, a pulley chamber 300, a clutch 400, and a reel 500. The inner surface of the knob 100 is provided with control ribs 110 arranged at intervals around the center of the knob 100. The outer periphery of the pawl disc 200 is provided with several pawl arms 210 arranged around its circumference. The outer periphery of each pawl arm 210 is provided with pawl teeth 211. The pawl disc 200 is also provided with control... The bone position 110 passes through the arc-shaped groove 220. Rotating the knob 100 allows the bone position 110 to move along the arc-shaped groove 220. The pawl disc 200 also has two pairs of mutually perpendicular square grooves 230 on the surface opposite to the knob 100. The upper inner peripheral wall of the wheel chamber 300 is provided with ratchet teeth 310 that mesh with the pawl teeth 211. The lower interior of the wheel chamber 300 is provided with a receiving cavity for accommodating the reel 500. Corresponding to the outer periphery of the receiving cavity, the wheel chamber 300 is provided with rope-threading platforms 320 arranged at intervals. The side of the receiving cavity near the ratchet teeth 310 is provided with symmetrically arranged... The clutch ring 410 has a triangular buckle 330; a positioning block 420 is provided on the outer side of the clutch ring 410 corresponding to each square groove 230. The positioning block 420 can slide and engage with the square groove 330. A pair of oppositely arranged positioning blocks 420 have a wedge-shaped stop 421 on their outer side, and another oppositely arranged positioning block 420 has an elastic arm 422 on its outer side. The end of the wedge-shaped stop 421 extends out of the outer periphery of the pawl disc 200, and the end of the elastic arm 422 can abut against the two triangular buckles 330 during the rotation of the clutch ring 410; the line The spool 500 is rotatably mounted in the receiving cavity from the lower end of the spool 300, and the inner circumferential wall of the upper end of the spool 500 is provided with circumferential teeth 510 that mesh with the end of the wedge-shaped stop 421. When the clutch ring 410 undergoes elastic deformation and shrinks, the wedge-shaped stop 421 can separate from the circumferential teeth 510. The outer circumference of the spool 500 is provided with circumferentially arranged spool grooves 520, and the surface of the spool grooves 520 is provided with spool holes 530 corresponding to each spool hole. The spool is provided with a spool channel 541 that connects to the spool holes. The spool channel 541 is arranged in a U-shape.

[0043] like Figures 1 to 9As shown, through the above configuration, this embodiment uses a knob 100, a ratchet disc 200, a wheel chamber 300, a clutch 400, and a reel 500 to achieve the purpose of tightening or loosening the rope by rotating the knob 100 in both directions, making it quicker and more convenient to use. According to the aforementioned configuration, the knob 100 and the ratchet disc 200 are fitted together so that the control rib 110 at the lower end of the knob 100 engages with a corresponding arc-shaped groove 220 in the ratchet disc 200. The ratchet disc 200 is assembled to the upper end of the wheel chamber 300, so that the ratchet teeth 211 mesh with the ratchet teeth 310 at the upper end of the wheel chamber 300. The reel 500 is inserted into the receiving cavity from the lower end of the wheel chamber 300, and the clutch 400 is installed between the ratchet disc 200 and the reel 500. Between 0 and 0, the positioning blocks 420 of the clutch 400 slide in the square groove of the ratchet disc. The wedge-shaped stop 421 located outside the positioning block 420 meshes with the circumferential teeth 510 of the reel 500. When the two ends of the tether rope pass through the rope hole 530 from the rope threading platform 320, the tether rope is threaded into the rope threading channel 541. Since the two ends of the tether rope are U-shaped and threaded into the reel, the firmness of the rope threading is improved, and the tether rope is prevented from coming loose. After the tethering operation is completed, as follows: Figure 16 As shown. After the rope is wound into the groove 520, it can be switched between a tight and loose state by rotating the knob 100 clockwise or counterclockwise. When the knob 100 is rotated clockwise, it drives the pawl disc 200 and the clutch 400 to rotate clockwise. Since the wedge-shaped stop 421 of the clutch 400 is engaged with the circumferential teeth on the inner circumference of the reel 500, the reel 500 can be rotated clockwise to establish a tight rope state. When the knob 100 is rotated counterclockwise, the control position of the knob 100 drives the pawl disc and the clutch to rotate counterclockwise. Since the elastic arm of the clutch 400 abuts against the triangular buckle 330, the clutch 400 undergoes radial elastic deformation and shrinks due to frictional resistance, further disengaging the wedge-shaped stop 421 from the circumferential teeth on the inner circumference of the reel 500, allowing the reel 500 to rotate freely to establish a loose rope state. This device has a tight state, a loose state, and a rope loosening and tightening state, which is convenient for daily use.

[0044] like Figure 1 As shown, in order to facilitate the rotation of the knob 100 in both directions, this embodiment has anti-slip textures arranged around the outer periphery of the knob 100.

[0045] As mentioned above, after the knob 100 and the ratchet disc 200 are assembled, they are installed on the upper end of the wheel well 300. To prevent the knob 100 from falling off and to ensure that it remains rotatable, this embodiment has a fixing ring protrusion 340 arranged around the outer periphery of the wheel well 300. The knob 100 is fitted into the inner wall of the upper end of the wheel well 300, and a fixing buckle 120 is provided. The fixing buckle 120 can be engaged below the fixing ring protrusion 340 to prevent the knob 100 from falling off. When the knob 100 is engaged in the upper end of the wheel well 300, the fixing buckle 120 and the fixing ring protrusion 340 are movably engaged to make the knob 100 and the wheel well 300 form an integral assembly structure.

[0046] As mentioned earlier, during assembly, the spool 500 and clutch 400 are inserted into the receiving cavity from the lower end of the spool housing 300. The lower inner side of the spool housing 300 is provided with opposing positioning buckles 360, and the outer periphery of the spool 500 is provided with a clearance groove 550 that movably engages with the positioning buckles 360. When the clearance groove 550 of the spool 500 aligns with the positioning buckles 360, it can be engaged into the receiving cavity, simultaneously aligning the rope threading platform 320 with the rope threading hole 530. Thus, the positioning buckles 360 form a positioning assembly structure. During assembly, the spool 500 is installed into the receiving cavity within the spool housing 300 through the clearance groove 550. After assembly, because the rope threading platform 320 and the rope threading hole 530 are aligned, it is convenient to thread the tethering rope into the spool 500 from the outside.

[0047] like Figures 1 to 9 As shown, to facilitate the installation of the entire assembly, this embodiment provides two opposing fixed mounting platforms 350, one large and one small, arranged on the lower outer periphery of the wheel chamber 300. The fixed mounting platforms 350 are used to install the wheel chamber 300. In practical applications, to facilitate rope threading, this embodiment provides strip-shaped markings 370 on both sides of the larger fixed mounting platform 350 on the end face of the wheel chamber 300. Furthermore, the lower end face of the reel 500 has observation holes 540 on both sides corresponding to one of the clearance slots 550, and positioning markings 560 on both sides corresponding to the other clearance slot 550. The positioning markings 560 are aligned directly with the strip-shaped markings 370. The structure of the observation holes 540 and the positioning markings 560 ensures convenient rope-tying operations.

[0048] Example 2

[0049] like Figure 9As shown, this embodiment provides a base 600 for installing an assembly. The base 600 has a fixing ring platform 610 at its upper end. The bottom of the fixing ring platform 610 has an installation slot 620 that fits into the fixing plate 350. The fixing ring platform 610 also has a rope threading slot 630 arranged opposite to the rope threading platform 320. Thus, after the knob 100, ratchet disc 200, wheel chamber 300, clutch 400 and reel 500 are assembled, the fixing plate 350 at the lower end of the wheel chamber 300 can be engaged into the installation slot 620 in the fixing ring, ensuring the stability of the entire assembly installation. In addition, since the bottom of the wheel chamber 300 has a positioning buckle 360, in order to avoid interference with the base 600, this embodiment has a relief groove in the bottom of the base 600 corresponding to the fixing ring platform 610 to accommodate the positioning buckle 360. In practical applications, to facilitate the disassembly and assembly of the components, this embodiment provides a disassembly slot 640 above the mounting groove 620 on the upper end of the fixed ring platform 610. The disassembly slot 640 facilitates the disassembly of the wheel chamber 300, allowing the user to perform other operations.

[0050] Example 3

[0051] Based on the assembly structure and base structure provided in Embodiment 1 and Embodiment 2, the installation and assembly steps of this device are as follows;

[0052] A. First, insert the ratchet disc 200 into the upper end of the wheel well 300, so that the ratchet teeth 211 on the outer periphery of the end of the ratchet arm 210 mesh with the ratchet teeth 310 on the inner peripheral wall of the upper end of the wheel well 300. For example... Figures 10 to 14 As shown.

[0053] B. Insert the two control ribs 110 on the inner end face of the knob 100 into the arc-shaped grooves 220 on the pawl disc 200, and place the fixing buckles 120 on the inner circumference of the knob 100 onto the fixing ring protrusion 340 of the wheel chamber 300. Press them together firmly until you hear a "click" sound, and the knob 100 is locked into the waist position of the wheel chamber 300. In this way, the three parts can be assembled into a component.

[0054] C. Install the clutch 400 into the lower end of the ratchet disc 200. The assembly method is as follows: turn the control bone position 110 in the knob 100 to the end of the arc groove 220 on the ratchet, and insert the wedge-shaped stop 421 and the elastic small arm 422 in the clutch 400 into the square groove 230 respectively. Insert the spool 500 into the reel chamber 300, with the side of the spool 500 with the circumferential teeth 510 facing inwards from the reel chamber 300. Align the two clearance slots 550 in the spool 500 with the positioning latches 360 in the reel chamber 300 to place the spool 500 into the receiving cavity. After pressing it all the way down, turn the knob 100. The two control ribs 110 on the knob 100 will drive the pawl disc 200 and the clutch 400 to rotate. During rotation, when the two wedge-shaped stops 421 on the clutch 400 match the circumferential teeth 510 on the spool 500, the clutch 400 engages between the spool 500 and the pawl disc 200. At this time, the assembly relationship between the wedge-shaped stops 421 in the clutch 400 and the spool 500 is as follows: Figure 12 As shown. The assembly relationship between the elastic arm 422 in the clutch 400 and the ratchet disc 200 is as follows. Figure 10 As shown. The assembly relationship between the clutch 400, the ratchet disc 200, and the reel 500 is as follows. Figure 13 and 14 As shown (clutch 400 is sandwiched between ratchet disc 200 and reel 500, and functions as a clutch).

[0055] D. Thread the thin rope of the appropriate material into the two rows of rope holes 530 of the spool 500. The rope threading method is as follows: Turn the knob 100 clockwise. The control bone 110 in the knob 100 drives the pawl disc 200 and the clutch 400 to rotate. The wedge-shaped stop 421 in the clutch 400 meshes with the circumferential teeth 510 in the spool 500, which will drive the spool 500 to rotate clockwise. During the rotation, align the two positioning marks 560 in the spool 500 with the bar mark 370 in the spool chamber 300. At this time, the rope holes 530 on the spool 500 can be seen through the rope threading platform 320 of the spool chamber 300. Thread the thin rope through the rope-threading platform 320 in the reel compartment 300, then through the rope-threading hole 530 on the reel 500. Thread the rope to one end and exit from the other side of the hole. Then, thread the rope end back into the rope-threading hole 530 on the same side. When you can see the rope end protruding from the outer rope-threading hole 530 of the reel 500 through the observation hole 540, pull the rope taut from the outside to securely fix it to the reel 500. Thread the other end of the rope into the hole on the other side of the reel 500 using the same method to secure this end of the rope to the reel 500 as well.

[0056] E. Install the above-mentioned knob 100 assembly (including knob 100, pawl disc 200, wheel housing 300, clutch 400, and reel 500) with the rope threaded on it into the base 600. Assembly method: First, align the fixing plate 350 on the wheel housing 300 with the mounting slot 620 on the base 600, and press them together with a little force until you hear a "click". At this point, the knob 100 assembly and the base 600 are properly assembled. The effect after assembly is as follows. Figure 15 As shown.

[0057] Example 4

[0058] This embodiment provides specific implementation methods for each of the specific functions of this device:

[0059] Tightening the tether: Turning knob 100 clockwise causes the two control ribs 110 in knob 100 to rotate to the end of the arc-shaped groove 220 in the pawl disc 200. The control ribs of knob 100 push the pawl disc 200 to rotate clockwise. The square groove 230 in the pawl disc 200 then drives the wedge-shaped stop 421 and the elastic small arm 422 in the clutch 400 to rotate clockwise, thereby driving the clutch 400 to rotate clockwise. At this time, the wedge-shaped stop 421 in the clutch 400 is positioned in the arc-shaped groove 220 of the pawl disc 200, pressing against the inner side of the control rib 110 of knob 100. The wedge-shaped stop 421 engages with the circumference of the reel 500, thereby driving the reel 500 to rotate clockwise as well, thus achieving the purpose of tightening the tether. At this time, the end face of the pawl tooth 211 in the pawl disc 200 presses against the tooth surface of the pawl tooth 310 in the wheel chamber 300, fixing the entire system consisting of four parts: wheel chamber 300, pawl disc 200, clutch 400, and reel 500. This prevents the system from rotating counterclockwise, thus achieving the purpose of tightening the tether and preventing it from loosening.

[0060] To release the tether: Turn knob 100 counterclockwise (during the rotation of knob 100, the pawl teeth 211 in the pawl disc 200 abut against the tooth surface of the pawl teeth 310 in the wheel well 300, and the pawl disc 200 is fixed in position relative to the wheel well 300). The two control ribs 110 in knob 100 will rotate counterclockwise along the arc-shaped groove 220 in the pawl disc 200 to the other end of the arc-shaped groove 220. The outer surface of the control ribs 110 will push the clutch in the clutch 400. The inner wall of the clutch ring 410 causes the elastic arm 422 of the clutch 400 to move outward along the square groove 230 in the pawl disc 200. The elastic arm 422 shrinks due to the radial deformation of the clutch ring 410, causing the wedge-shaped stop 421 to move inward along the square groove 230. This causes the wedge-shaped stop 421 to disengage from the circumferential teeth 510 in the reel 500, thereby freeing the reel 500 from circumferential constraints and allowing it to rotate freely, thus achieving the purpose of loosening the tether.

[0061] From loosening the tether to tightening it: At the beginning of this process, the two control positions 110 of the knob 100 are at the ends of the arc-shaped grooves 220 in the pawl disc 200. When the knob 100 is turned clockwise, because the inner wall of the elastic forearm 422 of the clutch 400 and the outer wall of the control position 110 of the knob 100 are in a state of mutual pressure, the friction between them is large. The outer wall of the control position 110 will drive the clutch 400 to rotate clockwise through friction, and the clutch 400, through the elastic forearm 422, will drive the pawl disc 200 to rotate clockwise. When the clutch 400 rotates to the point where the elastic arm 422 touches the triangular buckle 330 on the wheel chamber 300, the triangular buckle 330 will prevent the elastic arm 422 from continuing to rotate. At this time, the control rib 110 of the knob 100 and the clutch 400 are displaced. If the knob 100 is rotated further, the control rib 110 will reach the other end position in the pawl arc groove 220. At this time, the wedge-shaped stop 421 on the clutch 400 will be pushed by the control rib 110 towards the circumferential teeth 510 of the reel 500, so that the wedge-shaped stop 421 and the circumferential teeth 510 are engaged, thereby pushing the reel 500 to rotate clockwise together, so that the thin rope with the rope end fixed in the rope hole 530 of the reel 500 is wound into the groove 520, thus achieving the purpose of tightening the rope.

[0062] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A reversible tensioning and untensioning rope device, characterized in that, Includes a knob (100), a ratchet disc (200), a wheel chamber (300), a clutch (400), and a spool (500); The inner surface of the knob (100) is provided with control bone positions (110) arranged at intervals with the center of the knob (100) as the center; The pawl disc (200) has a plurality of pawl arms (210) arranged around its circumference. The pawl arms (210) have pawl teeth (211) at their ends. The pawl disc (200) also has an arc-shaped groove (220) through which the control bone position (110) passes. Rotating the knob (100) allows the control bone position (110) to move along the arc-shaped groove (220). The surface of the pawl disc (200) facing away from the knob (100) also has two pairs of square grooves (230) arranged perpendicularly to each other. The upper inner peripheral wall of the wheel chamber (300) is provided with a ratchet (310) that meshes with the pawl (211). The lower interior of the wheel chamber (300) is provided with a receiving cavity for accommodating the spool (500). The receiving cavity is provided with symmetrically arranged triangular buckles (330) on the side near the ratchet (310). The clutch (400) includes a clutch ring (410) capable of elastic deformation along its radial direction. Positioning blocks (420) are provided on the outer side of the clutch ring (410) corresponding to the positions of each square groove (230). The positioning blocks (420) can slide and engage with the square grooves (330). A pair of oppositely arranged positioning blocks (420) are provided with wedge-shaped stops (421) on their outer sides, and another oppositely arranged positioning block (420) is provided with an elastic arm (422) on its outer side. The end of the wedge-shaped stop (421) extends out of the outer periphery of the pawl disc (200), and the end of the elastic arm (422) can abut against the two triangular buckles (330) during the rotation of the clutch ring (410). The spool (500) is rotatably mounted in the receiving cavity from the lower end of the spool (300), and the inner circumferential wall of the upper end of the spool (500) is provided with circumferential teeth (510) that mesh with the end of the wedge-shaped stop (421). When the clutch ring (410) deforms and shrinks, the wedge-shaped stop (421) can separate from the circumferential teeth (510).

2. The forward and reverse tensioning rope device according to claim 1, characterized in that, The wheel chamber (300) has a rope threading platform (320) arranged at intervals on the outer periphery of the corresponding receiving cavity. The spool (500) has a circumferentially arranged wire groove (520) on its outer periphery. The surface of the wire groove (520) has a rope threading hole (530) corresponding to each rope threading platform (320). The spool (500) has a rope threading channel (541) connecting the rope threading hole (541) inside. The rope threading channel (541) is arranged in a U-shape.

3. The forward and reverse tensioning rope device according to claim 1, characterized in that, The knob (100) is provided with anti-slip textures around its outer periphery.

4. The forward and reverse tensioning rope device according to claim 1, characterized in that, The outer periphery of the wheel well (300) is provided with a fixed annular protrusion (340) arranged around the wheel well (300). The knob (100) is fitted into the inner wall of the upper end of the wheel well (300) and is provided with a fixed buckle (120). The fixed buckle (120) can be fitted into the lower part of the fixed annular protrusion (340) to prevent the knob (100) from falling off.

5. The forward and reverse tensioning rope device according to claim 1, characterized in that, The lower inner side of the wheel chamber (300) is provided with a positioning buckle (360) arranged opposite to each other. The outer periphery of the spool (500) is provided with a clearance groove (550) that is movably matched with the positioning buckle (360). When the clearance groove (550) of the spool (500) is aligned with the positioning buckle (360), it can be inserted into the receiving cavity. At the same time, the rope threading platform (320) and the rope threading hole (530) can be directly opposite each other.

6. The forward and reverse tensioning rope device according to claim 5, characterized in that, The lower outer periphery of the wheel well (300) is provided with fixed card platforms (350) arranged opposite to each other, one large and one small, and the end face of the wheel well (300) is provided with strip-shaped markings (370) on both sides corresponding to the larger fixed card platform (350).

7. The forward and reverse tensioning rope device according to claim 6, characterized in that, The lower end face of the reel (500) is provided with observation holes (540) on both sides of one of the clearance slots (550), and is also provided with positioning marks (560) on both sides of the other clearance slot (550). The positioning marks (560) can be directly opposite the bar mark (370).

8. The forward and reverse tensioning rope device according to any one of claims 1-6, characterized in that, It also includes a base (600), the upper end of which is provided with a fixing ring platform (610), the bottom of which is provided with an installation slot (620) that fits with the fixing card platform (350), and the fixing ring platform (610) is also provided with a rope threading slot (630) arranged opposite to the rope threading platform (320).

9. The forward and reverse tensioning rope device according to claim 8, characterized in that, The base (600) has a clearance groove at the bottom of the corresponding fixed ring platform (610) to accommodate the positioning buckle (360).

10. The forward and reverse tensioning rope device according to claim 8, characterized in that, The upper end of the fixed ring platform (610) is provided with a disassembly slot (640) above the mounting slot (620).

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