CN220412504U - Forward and reverse rotation elastic rope tying device - Google Patents

Abstract

The utility model relates to the technical field of articles for daily use, and discloses a positive and negative rotation elastic rope tying device which comprises a knob, a pawl disc, a wheel bin, a clutch piece and a wire wheel; according to the utility model, the aim of tightening the rope can be achieved through the forward and backward rotation of the knob through the assembly of the knob, the pawl disc, the wheel bin, the clutch piece and the wire wheel, and when the knob rotates forward, the clutch piece and the wire wheel are in a meshed state, so that the wire wheel can be driven to rotate forward to establish a rope tightening state after the two ends of the rope are wound on the wire slot from the rope threading table through the rope threading hole; when the knob is reversed, the wedge-shaped stop block of the clutch piece is disengaged from the inner periphery of the wire wheel through elastic deformation of the clutch piece, so that the wire wheel can freely rotate to establish a rope loosening state; the device has a tightening state, a rope loosening state and a rope loosening state, and is convenient for the daily use of the user; has higher practical value.

Description

Forward and reverse rotation elastic rope tying device

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a reversible elastic rope tying device.

Background

In everyday life, fastening by means of a tether is a common fastening means used on footwear, medical braces or other articles of daily use. Taking shoes as an example, when using sports shoes or canvas shoes, a common shoelace passes through the belt holes on the shoes and is tied by a bow tie or other knots, the shoelace is easy to loosen during the sports, and if the shoelace is loosened and needs to be tied when walking on the road or carrying more articles, the shoes are inconvenient to feel; particularly in sports, once the shoelace is loosened, accidents are easy to occur.

The lacing tightness device is arranged on few daily necessities in the market at present, but the lacing tightness device has a complex structure, small and numerous accessories, so that the manufacturing process is complex and the rapid assembly cannot be realized; the manufacturing cost is high, the structural stability is not strong, the rejection rate is high, and the use effect is not good. In the use process, the forced unlocking mechanism is utilized, the operability is complex, after the rope is tightened, the mechanism can only be pulled upwards to be disengaged, the rope loosening and the rope tightening process cannot be connected, and the tightness degree of the rope cannot be finely adjusted. Because of the problems of complex mechanical structure and space, the parts are smaller and are extremely easy to collapse, so that the safety problems of sudden rope loosening, rope twisting or mechanism spalling are caused.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the positive and negative rotation elastic rope tying device which can achieve the purposes of tightening and loosening ropes through positive and negative rotation, greatly improves the efficiency and is convenient to use.

The technical scheme adopted by the utility model is as follows: a positive and negative rotation elastic rope tying device, which comprises a knob, a pawl disc, a wheel bin, a clutch piece and a wire wheel; the inner surface of the knob is provided with control bone positions which are oppositely arranged at intervals by taking the center of the knob as the center; the periphery of the pawl disc is provided with a plurality of pawl arms which are arranged around the periphery of the pawl disc, the periphery of the tail end of each pawl arm is provided with pawl teeth, the pawl disc is also provided with an arc-shaped groove for a control bone position to pass through, and the control bone position can move along the arc-shaped groove by rotating the knob; the surface of the pawl disc, which is away from the knob, is also provided with two pairs of square grooves which are mutually perpendicular; the inner peripheral wall of the upper end of the wheel bin is provided with ratchets meshed with the pawl teeth in a matching way, the lower end of the wheel bin is internally provided with an accommodating cavity for accommodating the wire wheel, and one side of the accommodating cavity, which is close to the ratchets, is provided with triangular buckling positions which are symmetrically arranged.

The clutch piece comprises a clutch ring which can elastically deform along the radial direction of the clutch ring, positioning blocks are arranged at the outer sides of the clutch ring and correspond to the positions of the square grooves, the positioning blocks can correspondingly be in sliding fit with the square grooves, wedge-shaped check blocks are arranged at the outer sides of a pair of positioning blocks which are oppositely arranged, elastic small arms are arranged at the outer sides of the other positioning blocks which are oppositely arranged, the tail ends of the wedge-shaped check blocks extend out of the periphery of the pawl disc, and the tail ends of the elastic small arms can abut against two triangular buckling positions in the rotation process of the clutch ring.

The wire wheel is rotatably arranged in the accommodating cavity from the lower end of the wheel bin, circumferential teeth meshed with the end parts of the wedge-shaped stop blocks are arranged on the inner circumferential wall of the upper end of the wire wheel, and the wedge-shaped stop blocks can be separated from the circumferential teeth when the clutch ring is elastically deformed and contracted.

According to the technical scheme, the aim of tightening the rope can be achieved through forward and reverse rotation of the knob through the assembly of the knob, the pawl disc, the wheel bin, the clutch piece and the wire wheel, and the rope tightening device is more rapid and convenient to use; wherein the knob and the pawl disc are matched up and down, and the control bone position is clamped into the corresponding arc-shaped groove; the pawl disc is assembled to the upper end of the wheel bin, so that pawl teeth are meshed with ratchets at the upper end of the wheel bin, the wire wheel is clamped into the accommodating cavity from the lower end of the wheel bin, the clutch piece is arranged between the pawl disc and the wire wheel, the clutch piece adopts a clutch ring with elasticity, a positioning block at the outer side of the clutch ring is in sliding fit with a square groove at the lower end of the pawl disc, a pair of wedge-shaped stop blocks positioned on the positioning block can be meshed with circumferential teeth of the wire wheel, and the elastic small arm is propped against a triangular buckling position of the wheel bin when the clutch piece rotates; when the rotary rope tightening device is used, the rotary knob can be switched between a rope tightening state and a rope loosening state through forward rotation or reverse rotation, and when the rotary knob is forward rotated, the clutch piece and the wire wheel are in a meshed state, so that the wire wheel is forward rotated to establish the rope tightening state; when the knob is reversed, the wedge-shaped stop block is disengaged from the circumferential teeth on the inner periphery of the wire wheel through elastic deformation of the clutch piece, so that the wire wheel can freely rotate to establish a rope loosening state. The technical scheme has the tightening state, the rope loosening state and the rope loosening state, and is convenient for the daily use of the user.

Further, the knob periphery is equipped with the anti-skidding line that encircles the knob periphery and arranges.

Further, the periphery of the wheel bin is provided with a fixed ring protrusion arranged around the wheel bin, the inner wall of the upper end of the wheel bin is provided with a fixed buckle, and the fixed buckle can be clamped below the fixed ring protrusion to prevent the knob from falling off.

Further, the wheel bin is provided with rope penetrating platforms which are arranged at intervals corresponding to the outer periphery of the accommodating cavity, the periphery of the wire wheel is provided with wire grooves which are arranged circumferentially, the surface of each wire groove is provided with rope penetrating holes corresponding to each rope penetrating platform, rope penetrating channels which are communicated with the rope penetrating holes are arranged in the wire wheel, and the rope penetrating channels are arranged in a U shape.

Further, the inner side of the lower end of the wheel bin is provided with a positioning buckling position which is arranged oppositely, the periphery of the wire wheel is provided with an avoidance notch which is movably matched with the positioning buckling position, and when the avoidance notch and the positioning buckling position of the wire wheel are opposite, the wire wheel can be clamped into the accommodating cavity, and meanwhile, the rope threading table is opposite to the rope threading hole.

Further, the periphery of the lower end of the wheel house is provided with fixed clamping tables which are arranged oppositely and are arranged in a large-size mode, and two sides of the end face of the wheel house, corresponding to the large fixed clamping tables, are provided with bar-shaped marks.

Further, the lower end face of the wire wheel is provided with observation holes corresponding to two sides of one avoidance notch, and positioning marks corresponding to two sides of the other avoidance notch are also arranged, and can be opposite to the strip-shaped marks.

Further, the rope threading device further comprises a base, a fixed ring table is arranged at the upper end of the base, an installation clamping groove which is matched with the fixed clamping table in a proper mode is formed in the inner bottom of the fixed ring table, and a rope threading clamping groove which is arranged opposite to the rope threading table is further formed in the fixed ring table.

Further, the base is provided with an avoidance groove for accommodating the positioning buckle position at the inner bottom of the corresponding fixed ring platform.

Further, a disassembly bayonet is arranged above the fixing ring table upper end corresponding to the installation clamping groove.

The beneficial effects of the utility model are as follows: according to the utility model, the aim of tightening the rope can be achieved through the forward and backward rotation of the knob through the assembly of the knob, the pawl disc, the wheel bin, the clutch piece and the wire wheel, when the two ends of the rope are wound on the wire slot from the rope threading table through the rope threading hole, the rope tightening state and the rope loosening state can be switched through forward rotation or reverse rotation of the knob, and the pawl disc and the clutch piece are driven to forward rotate when the knob forward rotates, and the clutch piece and the wire wheel are in an engaged state, so that the wire wheel forward rotates to establish the rope tightening state; when the knob is reversed, the knob drives the pawl disc to turn over, and the clutch piece is elastically deformed due to friction force resistance to enable the wedge-shaped stop block to be disengaged from the inner periphery of the wire wheel, so that the wire wheel can freely rotate to establish a rope loosening state; the device has a tightening state, a rope loosening state and a rope loosening state, and is convenient for the daily use of the user; has higher practical value.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a perspective view of a knob of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 2 is a perspective view of a pawl disc of a reversible elastic tether device according to an embodiment of the present utility model shown in fig. 1.

Fig. 3 is a perspective view of a pawl disc of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 4 is a perspective view of a clutch member of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 5 is a perspective view of a wheel well of a reversible elastic tether device according to an embodiment of the present utility model in fig. 1.

Fig. 6 is a perspective view of a wheel well of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 7 is a perspective view of a reel of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 8 is a perspective view of a reel of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 9 is a perspective view of a base of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 10 is a perspective view showing the cooperation of the pawl disc and the clutch member of the reversible elastic tether device according to the embodiment of the present utility model.

Fig. 11 is a perspective view of a pawl disc and a wheel well of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 12 is a perspective view of the clutch member and the wheel well of the reversible elastic tether device according to the embodiment of the present utility model.

Fig. 13 is a perspective view of a wire wheel and a wheel house of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 14 is a perspective view of a wire wheel and a wheel house of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 15 is an assembled perspective view of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 16 is a schematic diagram of a reversible elastic tether device according to an embodiment of the present utility model.

Fig. 17 is an exploded view of a reversible elastic tether device according to an embodiment of the present utility model.

Reference numerals: knob 100, control bone site 110, fixing clasp 120, pawl disk 200, pawl arm 210, pawl tooth 211, arc slot 220, square slot 230, wheel well 300, ratchet 310, threading table 320, triangle clasp site 330, fixing ring boss 340, fixing clasp site 350, positioning clasp site 360, bar-shaped logo 370, clutch piece 400, clutch ring 410, positioning block 420, wedge block 421, elastic small arm 422, wire wheel 500, circumferential tooth 510, wire slot 520, threading hole 530, observation hole 540, threading channel 541, avoidance slot 550, positioning logo 560, base 600, fixing ring table 610, mounting clasp 620, threading clasp 630, detachment bayonet 640.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present utility model are merely conventional adaptive applications of the prior art. The utility model is thus an improvement over the prior art in that it essentially consists in the connection between the hardware. The description of the function and the method of the utility model is for better explaining the utility model so as to better understand the utility model.

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

Example 1

As shown in fig. 1 to 9, a first embodiment provides a reversible elastic rope tying device for achieving the purposes of rope tightening and rope feeding by rotating reversely; the device specifically comprises a knob 100, a pawl disc 200, a wheel house 300, a clutch 400 and a wire wheel 500; the inner surface of the knob 100 is provided with control bone positions 110 which are oppositely arranged at intervals by taking the circle center of the knob 100 as the center; the periphery of the pawl plate 200 is provided with a plurality of pawl arms 210 which are arranged around the periphery of the pawl plate, the periphery of the tail end of each pawl arm 210 is provided with pawl teeth 211, the pawl plate 200 is also provided with an arc-shaped groove 220 for the control bone position 110 to pass through, and the control bone position 110 can move along the arc-shaped groove 220 by rotating the knob 100; the surface of the pawl disc 200 facing away from the knob 100 is also provided with two pairs of square grooves 230 arranged perpendicular to each other; the inner peripheral wall of the upper end of the wheel bin 300 is provided with ratchets 310 which are matched and meshed with pawl teeth 211, the inside of the lower end of the wheel bin 300 is provided with accommodating cavities for accommodating the wire wheels 500, the periphery of the wheel bin 300 corresponding to the accommodating cavities is provided with rope penetrating platforms 320 which are arranged at intervals, and one side of each accommodating cavity close to the ratchets 310 is provided with triangular buckling positions 330 which are symmetrically arranged; the outer sides of the clutch rings 410 are provided with positioning blocks 420 corresponding to the square grooves 230, the positioning blocks 420 can be correspondingly in sliding fit with the square grooves 230, wedge-shaped stop blocks 421 are arranged on the outer sides of one pair of the positioning blocks 420 which are oppositely arranged, elastic small arms 422 are arranged on the outer sides of the other positioning blocks 420 which are oppositely arranged, the tail ends of the wedge-shaped stop blocks 421 extend out of the periphery of the pawl plates 200, and the tail ends of the elastic small arms 422 can be propped against the two triangular buckling positions 330 in the rotation process of the clutch rings 410; the wire wheel 500 is rotatably installed in the accommodating cavity from the lower end of the wheel bin 300, and the inner peripheral wall of the upper end of the wire wheel 500 is provided with circumferential teeth 510 meshed with the end parts of the wedge-shaped stop blocks 421, and the wedge-shaped stop blocks 421 can be separated from the circumferential teeth 510 when the clutch ring 410 is elastically deformed and contracted; the periphery of the wire wheel 500 is provided with wire grooves 520 which are circumferentially arranged, the surface of each wire groove 520 is provided with a wire penetrating hole 530 corresponding to each wire penetrating table, the wire wheel 500 is internally provided with a wire penetrating channel 541 which is communicated with the wire penetrating holes 530, and the wire penetrating channels 541 are arranged in a U shape.

As shown in fig. 1 to 9, through the above arrangement, the present embodiment adopts the knob 100, the pawl disc 200, the wheel housing 300, the clutch member 400 and the wire wheel 500 to be assembled, so that the purpose of tightening the tether can be achieved by forward and reverse rotation of the knob 100, which is more convenient and quick in use. According to the above arrangement, the knob 100 and the pawl plate 200 are vertically engaged, so that the control bone site 110 at the lower end of the knob 100 is caught in the corresponding one of the arc-shaped grooves 220 of the pawl plate 200, the pawl plate 200 is assembled to the upper end of the wheel house 300, and the pawl teeth 211 are engaged with the ratchet teeth 310 at the upper end of the wheel house 300; the wire wheel 500 is clamped into the accommodating cavity from the lower end of the wheel bin 300, the clutch piece 400 is arranged between the pawl disc 200 and the wire wheel 500, each positioning block 420 of the clutch piece 400 is in sliding fit with a square groove of the pawl disc, the wedge-shaped stop block 421 positioned on the outer side of the positioning block 420 is meshed with the circumferential teeth 510 of the wire wheel 500, when two ends of a tether penetrate into the rope penetrating channel 541 from the rope penetrating table 320 through the rope penetrating holes 530, the two ends of the tether are U-shaped and are penetrated into the wire wheel, so that the rope penetrating firmness is improved, the tether is prevented from loosening, and the tether operation is finished as shown in fig. 16. After the tether is wound on the wire groove 520, the knob 100 can be switched between a rope tightening state and a rope loosening state by forward rotation or reverse rotation, and when the knob 100 is forward rotated, the clamping jaw disc 200 and the clutch piece 400 are driven to forward rotate, and as the wedge-shaped stop block 421 of the clutch piece 400 is in a meshed state with the circumferential teeth on the inner periphery of the wire wheel 500, the wire wheel 500 can be driven to forward rotate to establish the rope tightening state; when the knob 100 is turned back, the control bone position of the knob 100 drives the pawl disc and the clutch piece to turn back, and as the elastic small arm of the clutch piece 400 is propped against the triangular buckling position 330, the clutch piece 400 is radially elastically deformed and reduced due to friction resistance, and further the wedge-shaped stop 421 is disengaged from the circumferential teeth on the inner periphery of the wire wheel 500, so that the wire wheel 500 can freely rotate to establish a rope loosening state. The device has the tightening state, the rope loosening state and the rope loosening state, and is convenient for the daily use of the user.

As shown in fig. 1, in order to facilitate the forward rotation or the reverse rotation of the rotary knob 100, the present embodiment is provided with anti-slip patterns disposed around the outer circumference of the rotary knob 100 at the outer circumference of the rotary knob 100.

As described above, the knob 100 and the detent disc 200 are mounted on the upper end of the wheel housing 300 after assembly, in order to prevent the knob 100 from falling off and ensure that the knob is rotatable, the periphery of the wheel housing 300 is provided with a fixing ring protrusion 340 disposed around the wheel housing 300, the inner wall of the upper end of the wheel housing 300 is provided with a fixing buckle 120, and the fixing buckle 120 can be clamped under the fixing ring protrusion 340 to prevent the knob 100 from falling off. After the knob 100 is clamped into the upper end of the wheel well 300, the fixing buckle 120 is movably matched with the fixing ring boss 340, so that the knob 100 and the wheel well 300 form an integrated assembly structure.

As mentioned before, when the wire wheel 500 and the clutch member 400 are assembled, the lower end of the wheel bin 300 is installed into the accommodating cavity, the inner side of the lower end of the wheel bin 300 is provided with the positioning buckle position 360 which is arranged oppositely, the periphery of the wire wheel 500 is provided with the avoiding notch 550 which is movably matched with the positioning buckle position 360, and when the avoiding notch 550 of the wire wheel 500 is opposite to the positioning buckle position 360, the wire wheel 500 can be clamped into the accommodating cavity, and meanwhile, the wire threading table 320 can be opposite to the wire threading hole 530. Thus, the positioning buckle 360 can form a positioning assembly structure, and when the wire wheel 500 is assembled, the wire wheel 500 is installed into the accommodating cavity in the wheel bin 300 through the avoidance notch 550, and after the assembly is completed, the rope threading table 320 is opposite to the rope threading hole 530, so that the rope is conveniently threaded into the wire wheel 500 from the outside.

As shown in fig. 1 to 9, in order to facilitate installation of the whole assembly, the present embodiment is provided with fixing clips 350 which are arranged relatively and one by one at the periphery of the lower end of the wheel well 300, and the fixing clips 350 are used for installing the wheel well 300; in practical application, in order to facilitate the rope threading operation, in this embodiment, bar-shaped identifiers 370 are disposed on two sides of the fixing clip 350 with the end face of the wheel house 300 corresponding to the large size. And the lower end surface of the wire wheel 500 is provided with observation holes 540 corresponding to two sides of one avoidance slot 550, and positioning marks 560 corresponding to two sides of the other avoidance slot 550, wherein the positioning marks 560 can be opposite to the strip-shaped marks 370. The convenience of the tether manipulation can be ensured by the structure of the observation hole 540 and the positioning mark 560.

Example two

As shown in fig. 9, this embodiment provides a base 600 for installing an assembly according to the embodiment, a fixing ring table 610 is provided at the upper end of the base 600, a mounting slot 620 that is adapted to be engaged with the fixing clip table 350 is provided at the bottom of the fixing ring table 610, and a rope threading slot 630 that is disposed opposite to the rope threading table 320 is further provided on the fixing ring table 610. Thus, after the knob 100, the pawl disc 200, the wheel housing 300, the clutch member 400 and the wire wheel 500 are assembled, the fixing clamping table 350 at the lower end of the wheel housing 300 can be clamped into the mounting clamping groove 620 in the fixing ring, so that the stability of mounting the whole assembly is ensured. In practical application, in order to facilitate assembly disassembly, in this embodiment, a disassembly bayonet 640 is disposed above the corresponding installation slot 620 at the upper end of the fixed ring table 610. The detachable bayonet 640 is arranged to facilitate the disassembly of the wheel house 300, and facilitate other operations of a user.

Example III

According to the assembly structure and the base structure provided in the first and second embodiments, the installation and assembly steps of the present device are as follows;

A. the pawl disc 200 is first loaded into the upper end of the wheel well 300 such that the pawl teeth 211 on the outer periphery of the distal ends of the pawl arms 210 engage the ratchet teeth 310 on the inner peripheral wall of the upper end of the wheel well 300. As shown in fig. 10 to 14.

B. Two control bone positions 110 on the inner end surface of the knob 100 are respectively inserted into the arc-shaped grooves 220 on the pawl disc 200, the fixed buckles 120 on the inner circumference of the knob 100 are placed on the fixed annular protrusions 340 of the wheel house 300, are mutually pressed by force, and hear a click, and the knob 100 is buckled into the waist position of the wheel house 300. So that the three parts can be assembled into an assembly.

C. The clutch 400 is installed in the lower end of the pawl disc 200 as follows: the control bone position 110 in the knob 100 is turned to the end of the arc-shaped groove 220 on the pawl, and the wedge-shaped stop 421 and the elastic small arm 422 in the clutch 400 are correspondingly clamped into the square groove 230. The wire wheel 500 is placed in the wheel bin 300, one side of the wire wheel 500 with the circumferential teeth 510 faces the inside of the wheel bin 300, two avoidance notches 550 in the wire wheel 500 are aligned with the positioning buckling positions 360 of the wheel bin 300, so that the wire wheel 500 is placed in the accommodating cavity, after the wire wheel 500 is pressed to the bottom, the knob 100 is rotated, two control bone positions 110 on the knob 100 can drive the pawl disc 200 and the clutch piece 400 to rotate, and when two wedge-shaped stop blocks 421 on the clutch piece 400 are matched with the circumferential teeth 510 on the wire wheel 500 in the rotation process, the clutch piece 400 is clamped between the wire wheel 500 and the pawl disc 200. The wedge shaped stop 421 in clutch 400 is now in assembled relationship with the wire wheel 500 as shown in fig. 12. The spring arms 422 of the clutch 400 are shown in assembled relationship with the pawl disc 200 in FIG. 10. The clutch 400 and the pawl plate 200 and the wire wheel 500 are assembled as shown in fig. 13 and 14 (the clutch 400 is sandwiched between the pawl plate 200 and the wire wheel 500 to function as a clutch).

D. The strings of the corresponding materials are threaded into the two rows of string threading holes 530 of the string wheel 500, and the string threading method is as follows:

the knob 100 is rotated clockwise, the control bone 110 in the knob 100 drives the pawl plate 200 and the clutch 400 to rotate, the wedge-shaped stop 421 in the clutch 400 is meshed with the circumferential teeth 510 in the wire wheel 500, the wire wheel 500 is driven to rotate clockwise, and two positioning marks 560 in the wire wheel 500 are aligned with the bar marks 370 in the wheel bin 300 during rotation, at this time, the rope threading holes 530 on the wire wheel 500 can be seen through the rope threading table 320 of the wheel bin 300. The string is threaded through the threading table 320 in the wheel house 300, then threaded into the threading hole 530 on the wire wheel 500, threaded to the other side of the threading hole, threaded into the threading hole 530 on the same side, and when the rope is exposed from the threading hole 530 on the outer side of the wire wheel 500 as seen from the observation hole 540 of the wire wheel 500, the string is pulled from the outer side, so that the string is firmly fixed on the wire wheel 500. The other end of the string is inserted into the other side hole of the reel 500 in the same manner, so that the string at this end can be firmly fixed to the reel 500.

E. The above-mentioned tethered knob 100 assembly (comprising 5 parts of knob 100, ratchet disc 200, wheel well 300, clutch 400 and wire wheel 500) is assembled into base 600. The assembly method comprises the following steps: the fixing clip 350 on the wheel well 300 of the assembly is aligned with the mounting clip 620 on the base 600, and is slightly pressed with each other until the click is heard, at this time, the assembly of the knob 100 and the base 600 is completed, and the effect is shown in fig. 15.

Example IV

The embodiment provides a specific implementation mode of each specific function of the device:

tightening the tether: by rotating the knob 100 clockwise, the two control ribs 110 in the knob 100 will rotate to the end positions of the arc-shaped grooves 220 in the ratchet disc 200, the control ribs of the knob 100 will push the ratchet disc 200 to rotate clockwise, and the square grooves 230 in the ratchet disc 200 will respectively drive the wedge-shaped stoppers 421 and the elastic small arms 422 in the clutch 400 to rotate clockwise, thereby driving the clutch 400 to rotate clockwise. The knob 100 of the clutch 400, which is now in the position of the arcuate slot 220 of the pawl disc 200, controls the bone site 110 against the inside surface, the wedge shaped stop 421 engages the circumference of the wire wheel 500, thereby driving the wire wheel 500 clockwise as well, thereby tightening the tether. At this time, the end surfaces of the pawl teeth 211 in the pawl disc 200 are propped against the tooth surfaces of the ratchet teeth 310 in the wheel house 300, and the whole system consisting of 4 parts of the wheel house 300, the pawl disc 200, the clutch 400, the wire wheel 500 and the like is fixed, so that the system can be prevented from rotating anticlockwise, and the purposes of tightening the tether and preventing the tether from loosening are achieved.

Releasing the tether: the knob 100 is rotated anticlockwise (in the process of rotating the knob 100, the pawl teeth 211 in the pawl disc 200 are propped against the tooth surfaces of the ratchet teeth 310 in the wheel house 300, the pawl disc 200 is fixed relative to the wheel house 300), two control bone sites 110 in the knob 100 enter the other end part of the arc-shaped groove 220 along the arc-shaped groove 220 in the pawl disc 200 anticlockwise, the outer side surface of the control bone site 110 pushes the inner side wall of the clutch ring 410 in the clutch 400, the elastic small arm 422 of the clutch 400 moves outwards along the square groove 230 in the pawl disc 200, the elastic small arm 422 is contracted through radial deformation of the clutch ring 410, the wedge-shaped stop 421 moves inwards along the square groove 230, the wedge-shaped stop 421 is separated from contact with the circumferential teeth 510 in the wire wheel 500, the wire wheel 500 is free from binding in the circumferential direction, and the purpose of releasing the tether is achieved.

From releasing the tether to re-tightening the tether: in the beginning of the procedure, two control bone sites 110 in knob 100 are at the ends of arcuate slots 220 in detent disc 200. At this time, when the knob 100 is rotated clockwise, the inner side wall of the elastic small arm 422 of the clutch 400 and the outer side wall of the bone site 110 controlled by the knob 100 are in a mutually compressed state, so that the friction force between the inner side wall and the outer side wall of the bone site 110 is relatively large, the clutch 400 is driven to rotate clockwise together by the friction force, and the clutch 400 drives the pawl disc 200 to rotate clockwise together by the elastic small arm 422. When the clutch 400 rotates until the elastic small arm 422 touches the triangular buckling position 330 on the wheel house 300, the triangular buckling position 330 can stop the elastic small arm 422 from continuing to rotate, at the moment, the control bone position 110 of the knob 100 and the clutch 400 displace, the knob 100 continues to rotate, the control bone position 110 reaches the other end position in the pawl arc-shaped groove 220, at the moment, the wedge-shaped stop 421 on the clutch 400 is controlled by the control bone position 110 to push towards the circumferential tooth 510 of the wire wheel 500, so that the wedge-shaped stop 421 is meshed with the circumferential tooth 510, thereby pushing the wire wheel 500 to rotate clockwise together, fixing the rope end of the rope into the wire groove 520, and achieving the purpose of tightening the rope.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (10)

1. The positive and negative rotation elastic rope tying device is characterized by comprising a knob (100), a pawl disc (200), a wheel bin (300), a clutch piece (400) and a wire wheel (500);

the inner surface of the knob (100) is provided with control bone positions (110) which are oppositely arranged at intervals by taking the center of the knob (100) as the center;

the periphery of the pawl disc (200) is provided with a plurality of pawl arms (210) which are arranged around the periphery of the pawl disc, the periphery of the tail end of each pawl arm (210) is provided with pawl teeth (211), the pawl disc (200) is also provided with an arc-shaped groove (220) for controlling the bone position (110) to pass through, the knob (100) is rotated to enable the control bone position (110) to move along the arc-shaped groove (220), and the surface of the pawl disc (200) deviating from the knob (100) is also provided with two pairs of square grooves (230) which are arranged vertically;

the inner peripheral wall of the upper end of the wheel bin (300) is provided with ratchets (310) which are meshed with pawl teeth (211) in a matching way, the inside of the lower end of the wheel bin (300) is provided with a containing cavity for containing a wire wheel (500), and one side of the containing cavity, which is close to the ratchets (310), is provided with triangular buckling positions (330) which are symmetrically arranged;

the clutch piece (400) comprises a clutch ring (410) capable of elastically deforming along the radial direction of the clutch ring, positioning blocks (420) are arranged at positions, corresponding to all square grooves (230), on the outer sides of the clutch ring (410), the positioning blocks (420) can be correspondingly in sliding fit with the square grooves (230), wedge-shaped stop blocks (421) are arranged on the outer sides of a pair of oppositely arranged positioning blocks (420), elastic small arms (422) are arranged on the outer sides of the other oppositely arranged positioning blocks (420), the tail ends of the wedge-shaped stop blocks (421) extend out of the periphery of the pawl disc (200), and the tail ends of the elastic small arms (422) can be propped against two triangular buckling positions (330) in the rotation process of the clutch ring (410);

the wire wheel (500) is rotatably arranged in the accommodating cavity from the lower end of the wheel bin (300), circumferential teeth (510) meshed with the end parts of the wedge-shaped stop blocks (421) are arranged on the inner circumferential wall of the upper end of the wire wheel (500), and the wedge-shaped stop blocks (421) can be separated from the circumferential teeth (510) when the clutch ring (410) deforms and contracts.

2. The positive and negative rotation elastic tether device of claim 1, wherein,

the wheel bin (300) is equipped with interval arrangement wire-threading platform (320) corresponding to the periphery of the accommodating cavity, the periphery of the wire wheel (500) is equipped with wire grooves (520) circumferentially arranged, the surface of each wire groove (520) is equipped with wire-threading holes (530) corresponding to each wire-threading platform (320), wire-threading channels (541) communicated with the wire-threading holes (530) are arranged in the wire wheel (500), and the wire-threading channels (541) are arranged in a U shape.

3. The positive and negative rotation elastic tether device of claim 1, wherein,

the periphery of the knob (100) is provided with anti-skid patterns which are arranged around the periphery of the knob (100).

4. The positive and negative rotation elastic tether device of claim 1, wherein,

the wheel storehouse (300) periphery is equipped with the protruding (340) of solid fixed ring that arrange around wheel storehouse (300), the inner wall of wheel storehouse (300) upper end is gone into in knob (100) card is equipped with fixed buckle (120), fixed buckle (120) can be gone into fixed ring protruding (340) below in order to prevent knob (100) and drop.

5. The positive and negative rotation elastic tether device of claim 1, wherein,

the inside location knot position (360) that are equipped with relative arrangement of wheel storehouse (300) lower extreme, line wheel (500) periphery be equipped with location knot position (360) clearance fit dodge notch (550), dodge notch (550) and location knot position (360) when line wheel (500) can block into the holding intracavity afterwards, can make rope-threading platform (320) and rope-threading hole (530) just mutually simultaneously.

6. The positive and negative rotation elastic tether device of claim 5, wherein,

the periphery of the lower end of the wheel house (300) is provided with fixed clamping tables (350) which are arranged oppositely and are arranged in a large-size mode, and two sides of the end face of the wheel house (300) corresponding to the large fixed clamping tables (350) are provided with bar-shaped marks (370).

7. The positive and negative rotation elastic tether device of claim 6, wherein,

the lower end face of the wire wheel (500) is provided with observation holes (540) corresponding to two sides of one avoidance notch (550), and positioning marks (560) corresponding to two sides of the other avoidance notch (550), wherein the positioning marks (560) can be opposite to the strip-shaped marks (370).

8. The positive and negative rotation elastic tether device of any one of claims 1-6,

still include base (600), base (600) upper end is equipped with solid fixed ring platform (610), gu fixed ring platform (610) in the bottom be equipped with fixed clamping platform (350) card fit install draw-in groove (620), gu fixed ring platform (610) is last still to be equipped with wire rope threading platform (320) relative arrangement's wire rope threading draw-in groove (630).

9. The positive and negative rotation elastic tether device of claim 8, wherein,

the base (600) is provided with an avoidance groove for accommodating the positioning buckle position (360) at the inner bottom corresponding to the fixed ring table (610).

10. The positive and negative rotation elastic tether device of claim 8, wherein,

and a disassembly bayonet (640) is arranged at the upper end of the fixed ring table (610) above the corresponding installation clamping groove (620).