CN116157039A

CN116157039A - Fastening device

Info

Publication number: CN116157039A
Application number: CN202180057216.XA
Authority: CN
Inventors: 陈金柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-08-25
Publication date: 2023-05-23
Also published as: EP4302631A1; KR20240017771A; JP2024522961A; WO2022257274A1

Abstract

The invention provides a fastening device which comprises a shell unit, a wire coil, a braking unit, a knob and a connecting unit, wherein the connecting unit is connected with the knob and is limited on the braking unit or the wire coil. At least one of the connecting unit and the wire coil is limited on the annular wall, so that the annular wall, the wire coil, the braking unit and the knob are assembled into a whole, and the connecting unit does not directly pass through or is directly connected with the base. Therefore, the fastening device has the advantage of easy disassembly and assembly.

Description

Fastening device

Technical Field

The present invention relates to a fastening device, and more particularly, to a fastening device capable of winding and unwinding a tie wire.

Background

In daily life, the articles are commonly bundled by using a rope, a lacing and other wire bodies, and the most common bundling means is to utilize the wire bodies to shuttle back and forth through holes on the articles and then fix the articles by knots, such as rope binding shoes and the like. However, such a binding means is easy to loosen the knot due to external force factors, and not only the knot must be bound again, but also many inconveniences are caused because the article cannot be bound stably.

In order to solve the above problems, the industry develops a simple wire binding mechanism, which comprises a housing, a braking unit and a spring, wherein the housing is provided with a through hole for the wire body to pass through, the wire body is clamped between the braking unit and the housing by the acting force between the spring and the braking unit so as to achieve the fastening effect, and the wire body can be pulled to change the length by pressing the spring to change the position of the braking unit. However, the wire binding mechanism provides a fastening force through the restoring force of the spring, the wire body is still easy to loosen due to vibration or external force factors, and the wire binding mechanism does not have a space for accommodating the wire body, so that the exposure of the wire body is easy to cause danger.

Another fastener capable of rotationally tightening and fixing the lacing is developed by other manufacturers, the wire body can be accommodated in the fastener, and the length of the wire body can be adjusted through the mechanical interference of the internal components, and the tightening degree of tightening is adjusted. However, the structure of the buckle is complex, which increases the manufacturing cost and has the problem of difficult assembly and maintenance.

Therefore, the manufacturers continuously adjust and improve the internal structure of the buckle, and the buckle fastening capability is maintained and the structural reliability is increased to avoid the reduction of the service life under the premise of simplifying the structure.

In view of this, it is an objective of related industries to effectively improve the structure of fastening devices such as buckles.

Disclosure of Invention

According to one embodiment of the present invention, there is provided a fastening device, comprising a housing unit, a wire coil, a detent unit, a knob and a connection unit, wherein the housing unit comprises a ring wall, an upper opening, a lower opening and a base, the ring wall surrounds an inner space, the upper opening is communicated with the inner space, the lower opening is opposite to the upper opening and is communicated with the inner space, and the base is detachably and directly connected with the ring wall; the wire coil is positioned in the inner space and is used for winding a wire; the braking unit is positioned in the inner space and selectively stops the wire coil from rotating towards a releasing direction; the knob cover is arranged on the annular wall; the connecting unit is connected with at least one of the knob, the wire coil and the braking unit. At least one of the knob, the connecting unit, the braking unit and the wire coil is limited on the annular wall, so that the annular wall, the wire coil, the braking unit and the knob are assembled into a whole, and the connecting unit does not directly pass through or directly connect with the base.

Therefore, through the structural configuration, the fastening device has the advantage of easy disassembly and assembly.

According to an example of the fastening device of the foregoing embodiment, the housing unit may further include a first inner ring groove, the first inner ring groove is located at a lower end of the annular wall, and the connection unit includes a chassis, and the chassis is accommodated in the first inner ring groove.

According to an example of the fastening device of the foregoing embodiment, the housing unit may further include a second inner ring groove, the second inner ring groove is located on the annular wall and above the first inner ring groove, and the wire coil includes a lower ring portion, where the lower ring portion is accommodated in the second inner ring groove.

According to an example of the fastening device of the foregoing embodiment, the connection unit may further include a screw and a connection rod, the screw is connected to the knob, the connection rod protrudes upward from the chassis to be inserted into an axial space of the wire coil, and the connection rod is connected to the screw.

According to an example of the fastening device of the foregoing embodiment, the connecting unit may further include a boss and a screw, the boss directly protrudes downward from an inner top surface of the knob into an axial space of the wire coil, and the screw locks the chassis to the boss.

According to an example of the fastening device of the foregoing embodiment, the connection unit may further include a screw and a plug, the screw is connected to the knob and limited to the detent unit, the plug protrudes upward from the chassis to be inserted into an axial space of the wire coil, and the plug is coupled to the detent unit.

According to an example of the fastening device of the foregoing embodiment, the detent unit includes at least one ratchet arm and at least one limiting block, and when the detent unit is pulled to the releasing direction by a pulling force of the tie wire, the at least one ratchet arm abuts against the at least one limiting block.

An example of a fastening device according to the foregoing embodiment, wherein the at least one ratchet arm is located below the at least one limiting block.

According to an example of the fastening device of the foregoing embodiment, the detent unit further includes at least one retraction slot, the at least one retraction slot is adjacent to the at least one limiting block, the detent unit is located at an ascending position and a descending position along an axial direction, the detent unit is separated from a plurality of engaging teeth disposed on the annular wall when located at the ascending position, and the at least one ratchet arm swings radially inwards and enters the at least one retraction slot when the detent unit moves from the ascending position to the descending position.

According to an example of the fastening device of the foregoing embodiment, the at least one limiting block includes an inclined surface.

According to an example of the fastening device of the foregoing embodiment, the knob may include three clamping arms, the detent unit includes three clamping protrusions, and each clamping arm is respectively engaged with each clamping protrusion.

According to an example of the fastening device of the foregoing embodiment, the annular wall may include a toothless upper portion, and a gap between the toothless upper portion and the detent unit is configured to accommodate the three detent arms.

According to an example of the fastening device of the foregoing embodiment, the knob may further include a plurality of abutting portions, an upper ring groove is formed between the abutting portions and an inner wall of the knob, and the toothless upper portion is inserted into the upper ring groove.

According to an example of the fastening device of the foregoing embodiment, the knob may further include three radial fingers, and the detent unit may further include three radial slots, and each radial finger is engaged with each radial slot.

Drawings

Fig. 1 is a schematic perspective view of a fastening device according to embodiment 1 of the present invention;

FIG. 2 is an exploded view of the fastening device of the embodiment 1 of FIG. 1;

FIG. 3 shows another exploded view of the fastening device of the embodiment 1 of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the fastening device of the embodiment 1 of FIG. 1;

FIG. 5 is an exploded view of a fastening device according to embodiment 2 of the present invention;

FIG. 6 is a schematic cross-sectional view of the fastening device of the embodiment 2 of FIG. 5;

FIG. 7 is an exploded view of a fastening device according to embodiment 3 of the present invention;

FIG. 8 is a schematic cross-sectional view of the fastening device of the 3 rd embodiment of FIG. 7;

FIG. 9 is an exploded view of a fastening device according to embodiment 4 of the present invention;

FIG. 10 shows another exploded view of the fastening device of the 4 th embodiment of FIG. 9;

FIG. 11 is a schematic cross-sectional view of the fastening device of the 4 th embodiment of FIG. 9;

FIG. 12 is an exploded view of a fastening device according to embodiment 5 of the present invention;

FIG. 13 is a schematic cross-sectional view of the fastening device of the 5 th embodiment of FIG. 12;

FIG. 14 is an exploded view of a fastening device according to embodiment 6 of the present invention;

FIG. 15 is a schematic cross-sectional view of the fastening device of the 6 th embodiment of FIG. 14;

FIG. 16 is an exploded view of a fastening device according to embodiment 7 of the present invention;

FIG. 17 is a schematic cross-sectional view of the fastening device of the 7 th embodiment of FIG. 16;

FIG. 18 is an exploded view of a fastening device according to embodiment 8 of the present invention;

FIG. 19 shows another exploded view of the fastening device of the 8 th embodiment of FIG. 18;

FIG. 20 is a schematic cross-sectional view of the fastening device of the 8 th embodiment of FIG. 18;

FIG. 21 is an exploded view of a fastening device according to embodiment 9 of the present invention;

FIG. 22 is a schematic cross-sectional view of the fastening device of the 9 th embodiment of FIG. 21;

FIG. 23 is a schematic cross-sectional view of the fastening device of the 9 th embodiment of FIG. 22 taken along section line 23-23;

FIG. 24 is an exploded view of a fastening device according to embodiment 10 of the present invention;

FIG. 25 is a schematic cross-sectional view of the fastening device of the 10 th embodiment of FIG. 24;

FIG. 26 is a schematic cross-sectional view of the fastening device of the 10 th embodiment of FIG. 25 taken along section line 26-26;

FIG. 27 is an exploded view of a fastening device according to embodiment 11 of the present invention;

FIG. 28 is a schematic cross-sectional view of the fastening device of the 11 th embodiment of FIG. 27;

FIG. 29 is an exploded view of a fastening device according to embodiment 12 of the present invention;

FIG. 30 is a schematic cross-sectional view of the fastening device of the 12 th embodiment of FIG. 29;

FIG. 31 is an exploded view of a fastening device according to embodiment 13 of the present invention;

FIG. 32 is a schematic cross-sectional view of the fastening device of the 13 th embodiment of FIG. 31;

FIG. 33 is an exploded view of a fastening device according to embodiment 14 of the present invention;

FIG. 34 is a schematic cross-sectional view of the fastening device of the 14 th embodiment of FIG. 33;

FIG. 35 is a perspective view showing a knob of a fastening device according to embodiment 15 of the present invention; and

fig. 36 is a schematic perspective view of a detent unit of the fastening device of fig. 15 of the embodiment of fig. 35.

[ symbolic description ]

100d,100e,100f,100g,100h,100j,100k,100m,100n,100p,100q,100r,100s,100t: fastening device

200d housing unit

210d,210t base

220d,220m,220n,220p,220r,220t: circumferential wall

221n,221p toothless upper part

222r radial lugs

230d,230m,710r

240d internal space

260d second inner ring groove

261m of grooving

270d first inner ring groove

300d,300e,300f,300g,300h,300j,300m,300n,300p,300q,300r,300s,300t: wire coil

320d,320m,320r, chimeric teeth

340d of axle center space

360d upper ring part

370d lower ring portion

390m positioning ring

400d,400e,400f,400g,400h,400j,400k,400m,400n,400p,400q,400r,400s,400t,400u, brake unit

410 m-shrinking trough

410q,410s,410t, detent ring

410r second coupling teeth

420m limit block

421m inclined plane

430d guide portion

430s,430t,510q, stud

440d annular body

450d,450m,450r ratchet arms

450q,450t, inner ring

450s screw sleeve

460m,460u, clip convex

470d, snap teeth

470m,470u locating hole

480d,480m central hole

480u radial grooving

490f,490h,490m clip arm

500d,500e,500f,500g,500h,500j,500k,500m,500n,500p,500q,500r,500s,500t,500u: knob

510d guiding rail

520d,520f,520g,520h,520k,520s,520t, convex seats

530d through hole

530g,530m,530n,530u, arm

540n,540p, abutment

550m,550u positioning convex

560u radial finger

600d,600e,600f,600g,600h,600j,600m,600n,600p,600q: connecting unit

610d,610f,610j,610r,610s,610t,62 m,62 n,62 p,622q,623e,623g,623h, screw

610e convex column

610m,610n,610p locking bushings

621d,621e,621f,621g,621h,621j chassis

621m,621n,621p,621q stop ring

622d connecting rod

624f,624g,624h,624j,624k: plug

626j clamping block

700r,700s,700t ratchet ring

800r coupling piece

810r first coupling tooth

820r coupling ring

830r internal teeth

A1 Release direction

A2 direction of binding

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. For purposes of clarity, many practical details will be set forth in the following description. However, the reader should appreciate that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the sake of simplicity of the drawing, some well-known and conventional structures and elements are shown in the drawings in a simplified schematic manner; and repeated elements will likely be indicated by identical or analogous numerals.

In addition, herein, when an element (or a mechanism or module, etc.) is "connected," "disposed" or "coupled" to another element, it may be referred to as being directly connected, directly disposed or directly coupled to the other element, or as being indirectly connected, indirectly disposed or indirectly coupled to the other element, i.e., with other elements interposed therebetween. When an element is referred to as being "directly connected," "directly disposed" or "directly coupled" to another element, it can be directly connected or directly coupled to the other element or intervening elements may be present. The terms first, second, third, etc. are used to describe various elements or components only, and there is no limitation on the elements/components themselves, so that the first element/component may be referred to as a second element/component. And the combination of elements/components/mechanisms/modules herein is not a common, conventional or known combination in the art, and it is not possible to determine whether the combination of elements/components/mechanisms/modules is easily accomplished by a person of ordinary skill in the art by whether the combination of elements/components/mechanisms/modules is known per se.

Referring to fig. 1, 2, 3 and 4, fig. 1 is a perspective view of a fastening device 100d according to embodiment 1 of the present invention, fig. 2 is an exploded view of the fastening device 100d of embodiment 1 of fig. 1, fig. 3 is another exploded view of the fastening device 100d of embodiment 1 of fig. 1, and fig. 4 is a cross-sectional view of the fastening device 100d of embodiment 1 of fig. 1. The fastening device 100d includes a housing unit 200d, a wire tray 300d, a detent unit 400d, a knob 500d, and a connection unit 600d.

The housing unit 200d includes a ring wall 220d, an upper opening (not labeled), a lower opening (not labeled), and a base 210d, wherein the ring wall 220d surrounds an inner space 240d, the upper opening is communicated with the inner space 240d, the lower opening is opposite to the upper opening and is communicated with the inner space 240d, and the base 210d is detachably connected with the ring wall 220d directly; the wire coil 300d is positioned in the inner space 240d; the brake unit 400d is disposed in the inner space 240d and selectively blocks the wire coil 300d from rotating in a releasing direction A1 (only shown in fig. 2 and not shown in the remaining drawings); the connection unit 600d connects at least one of the knob 500d, the wire coil 300d, and the detent unit 400 d. At least one of the knob 500d, the connection unit 600d, the detent unit 400d and the wire coil 300d is limited to the annular wall 220d, so that the annular wall 220d, the wire coil 300d, the detent unit 400d and the knob 500d are assembled into a whole, and the connection unit 600d does not directly pass through or directly connect with the base 210d.

Thus, the fastening device 100d has the advantage of easy disassembly through the structural configuration, and the detailed structure of the fastening device 100d will be described later.

The housing unit 200d may further include a first inner ring groove 270d, a second inner ring groove 260d and a plurality of engaging teeth 230d, wherein the first inner ring groove 270d is positioned at a lower end of the annular wall 220d, the second inner ring groove 260d is positioned at the annular wall 220d and above the first inner ring groove 270d, and the engaging teeth 230d are positioned at an upper end of the annular wall 220d and face the inner space 240d. In order of diameter, the tip connection of the two opposing snap teeth 230d is smaller than the inner diameter of the annular wall 220d, the inner diameter of the annular wall 220d is smaller than the diameter of the second inner annular groove 260d, and the diameter of the second inner annular groove 260d is smaller than the diameter of the first inner annular groove 270d.

The coil 300d may include an upper ring portion 360d, a lower ring portion 370d and an axial space 340d, wherein when the coil 300d is placed into the inner space 240d from the lower opening of the annular wall 220d, the upper ring portion 360d of the coil 300d is located below the engagement teeth 230d, and the lower ring portion 370d is received in the second inner ring groove 260d.

The connection unit 600d may include a chassis 621d, and the chassis 621d may be accommodated in the first inner ring groove 270d. In detail, the connection unit 600d may further include a screw 610d and a connection rod 622d, the screw 610d is connected to the knob 500d, the connection rod 622d protrudes upward from the chassis 621d to be inserted into the axial space 340d of the wire coil 300d, and the connection rod 622d is connected to the screw 610d.

As shown in fig. 2 to 4, the chassis 621d and the connecting rod 622d are integrally connected as a one-piece member, the chassis 621d is located below the wire coil 300d so that the connecting rod 622d protrudes into the axial space 340d, and the screw 610d can be locked into the central channel of the connecting rod 622d from top to bottom and limited to the knob 500d. The diameter of the bottom plate 621d is larger than that of the lower ring portion 370d, and since the bottom plate 621d is accommodated in the first inner ring groove 270d and is limited by the annular wall 220d, after the screw 610d is locked into the connecting rod 622d by the spin button 500d, the annular wall 220d, the wire coil 300d, the brake unit 400d and the knob 500d can be assembled together, in other words, the annular wall 220d, the wire coil 300d, the brake unit 400d and the knob 500d cannot be separated from each other.

The detent unit 400d may include an annular body 440d, three guides 430d, three ratchet arms 450d, and a central hole 480d. The central hole 480d is located at the center of the ring body 440d, the guide 430d is of a helical tooth structure protruding outward from the ring body 440d and is configured to couple with the knob 500d, and the ratchet arm 450d is detachably engaged with the engagement tooth 230 d.

The knob 500d includes a guiding rail 510d, a boss 520d and a through hole 530d, wherein the guiding rail 510d is disposed on an inner wall of the knob 500d and is used for coupling with the guiding portion 430d, the boss 520d protrudes toward the inner space 240d along an axial direction, the through hole 530d penetrates the boss 520d, and the connecting rod 622d can enter the through hole 530d and lock the screw 610d.

As shown in fig. 4, at this time, the detent unit 400d is located at the first position, and the engagement teeth 470d of the detent unit 400d are engaged with the engagement teeth 320d of the wire coil 300d, so that the knob 500d is rotated in the tightening direction A2 (only shown in fig. 2, not shown in the remaining drawings), so as to drive the detent unit 400d to interlock the wire coil 300d for winding up, and when the knob 500d is not actuated, the ratchet arm 450d abuts against the engagement teeth 230d to prevent the wire coil 300d from rotating in the releasing direction A1, thereby preventing the wire from being released. In addition, the knob 500d rotates in the releasing direction A1 to drive the pulling unit 400d to rise along the axial direction and be located at the second position, so that the pulling unit 400d is separated from the wire coil 300d, at this time, the engagement teeth 470d of the pulling unit 400d are separated from the engagement teeth 320d of the wire coil 300d, and the wire coil 300d is not affected by the pulling unit 400d, but can rotate in the releasing direction A1, and the tie wire can be paid out by pulling.

Referring to fig. 5 and 6, fig. 5 is an exploded view of a fastening device 100e according to embodiment 2 of the present invention, and fig. 6 is a cross-sectional view of the fastening device 100e according to embodiment 2 of fig. 5. The fastening device 100e includes a housing unit (not shown in fig. 5 and 6), a wire tray 300e, a detent unit 400e, a knob 500e, and a connection unit 600e. The connection unit 600e may further include a boss 610e and a screw 623e, wherein the boss 610e protrudes downward from an inner top surface of the knob 500e into an axial space (not shown in fig. 5 and 6) of the wire coil 300e, and the screw 623e locks the chassis 621e to the boss 610e.

In detail, the protrusion 610e protrudes integrally from the inner top surface of the knob 500e, that is, the protrusion 610e is formed together when the knob 500e is formed, and the protrusion 610e has a length long enough to directly pass through the axial space of the wire coil 300e and contact the chassis 621e. Thus, when the screw 623e is inserted into the hole of the bottom plate 621e and locked into the boss 610e, and the head of the screw 623e is limited on the bottom plate 621e, the bottom plate 621e can abut against an end face of the boss 610e.

Referring to fig. 7 and 8, fig. 7 is an exploded view of a fastening device 100f according to embodiment 3 of the present invention, and fig. 8 is a cross-sectional view of the fastening device 100f of embodiment 3 of fig. 7. The fastening device 100f includes a housing unit (not shown in fig. 7 and 8), a wire tray 300f, a detent unit 400f, a knob 500f, and a connection unit 600f. The connection unit 600f may include a screw 610f, a chassis 621f and a plug 624f, wherein the screw 610f is connected to the knob 500f and is limited to the stopper unit 400f, the plug 624f protrudes upward from the chassis 621f to be inserted into an axial space (not shown in fig. 7 and 8) of the wire coil 300f, and the plug 624f is coupled to the stopper unit 400f.

The screw 610f may be threaded upward from a central hole (not shown in fig. 7 and 8) of the detent unit 400f into the boss 520f of the knob 500f, and a head of the screw 610f may be limited to the detent unit 400f. The detent unit 400f may include two clamp arms 490f coupled to the plug 624f such that when the knob 500f is pulled upward, the detent unit 400f may be lifted and positioned by the plug 624 f.

Referring to fig. 9, 10 and 11, fig. 9 is an exploded view of a fastening device 100g according to embodiment 4 of the present invention, fig. 10 is another exploded view of the fastening device 100g of embodiment 4 of fig. 9, and fig. 11 is a cross-sectional view of the fastening device 100g of embodiment 4 of fig. 9. The fastening device 100g includes a housing unit (not shown in fig. 9 to 11), a wire tray 300g, a detent unit 400g, a knob 500g, and a connection unit 600g. The connection unit 600g may include a chassis 621g, a screw 623g and a plug 624g, the plug 624g protruding upward from the chassis 621g, the screw 623g being inserted upward from the chassis 621g to be locked to the boss 520g of the knob 500 g. The knob 500g includes a tri-detent arm 530g protruding downward from the boss 520g, and the plug 624g is coupled to the tri-detent arm 530g. When the knob 500g is pulled up, the detent unit 400g may be raised and the knob 500g is positioned by the plug 624 g.

Referring to fig. 12 and 13, fig. 12 is an exploded view of a fastening device 100h according to embodiment 5 of the present invention, and fig. 13 is a cross-sectional view of the fastening device 100h of embodiment 5 of fig. 12. The fastening device 100h includes a housing unit (not shown in fig. 12 and 13), a wire tray 300h, a detent unit 400h, a knob 500h, and a connection unit 600h. The connection unit 600h may include a chassis 621h, a screw 623h and a plug 624h, the plug 624h protrudes upward from the chassis 621h into a central hole (not shown in fig. 12 and 13) of the stopper unit 400h, and three clamp arms 490h of the stopper unit 400h are coupled to the plug 624h. Screw 623h is inserted upward through chassis 621h and plug 624h to lock to boss 520h of knob 500h, and a head of screw 623h is retained by chassis 621 h. The knob 500h may include a lower collar below the boss 520h, and the lower collar is limited to the detent unit 400h. When the knob 500h is pulled up, the detent unit 400h may be raised and the knob 500h is positioned by the plug 624h.

Referring to fig. 14 and 15, fig. 14 is an exploded view of a fastening device 100j according to embodiment 6 of the present invention, and fig. 15 is a cross-sectional view of the fastening device 100j of embodiment 6 of fig. 14. The fastening device 100j includes a housing unit (not shown in fig. 14 and 15), a wire tray 300j, a detent unit 400j, a knob 500j, and a connecting unit 600j. The connection unit 600j may include a screw 610j, a chassis 621j, a plug 624j, and three clamp blocks 626j. The three clamping blocks 626j protrude upwards from the chassis 621j, the plugs 624j are inserted upwards into the chassis 621j to be coupled with the clamping blocks 626j, and an upper end face of the plugs 624j abuts against the stopper unit 400j. Screw 610j is locked down to plug 624j through knob 500j, and detent unit 400j is captured between knob 500j and plug 624 j. When knob 500j is pulled up, plug 624j may be positioned by clip 626j.

Referring to fig. 16 and 17, fig. 16 is an exploded view of a fastening device 100k according to embodiment 7 of the present invention, and fig. 17 is a cross-sectional view of the fastening device 100k of embodiment 7 of fig. 16. The fastening device 100k is similar to the fastening device 100j, but the plug 624k is inserted into the boss 520k of the knob 500k, and a ledge of the plug 624k abuts against the detent unit 400k.

Referring to fig. 18, 19 and 20, fig. 18 is an exploded view of a fastening device 100m according to embodiment 8 of the present invention, fig. 19 is another exploded view of the fastening device 100m of embodiment 8 of fig. 18, and fig. 20 is a cross-sectional view of the fastening device 100m of embodiment 8 of fig. 18. The fastening device 100m includes a housing unit (not shown in fig. 18 to 20), a wire tray 300m, a detent unit 400m, a knob 500m, and a connection unit 600m.

The connection unit 600m includes a locking shaft sleeve 610m, a stop ring 621m, and a screw 622m. The detent unit 400m includes a central hole 480m, and the central hole 480m is shaped to correspond to the head of the locking collar 610 m. The locking shaft sleeve 610m is downwardly inserted into an axial space (not shown in fig. 18 to 20) of the wire coil 300m, and the screw 622m passes through the stop ring 621m to be locked into the locking shaft sleeve 610m, so that the stop ring 621m is clamped between an end surface of the locking shaft sleeve 610m and a head of the screw 622m.

The wire coil 300m may include mating teeth 320m, each mating tooth 320m including a ramp. The detent unit 400m may further comprise three ratchet arms 450m, three limiting blocks 420m and three retraction slots 410m. Each ratchet arm 450m corresponds to each limit block 420m and is positioned below the limit block 420m, and each retraction slot 410m is adjacent to each limit block 420m. Wherein, when the actuating unit 400m is pulled to the releasing direction by a pulling force of the tie wire, each ratchet arm 450m is bent to allow the distal end of each ratchet arm 450m to abut against each limiting block 420m, thereby preventing excessive bending of the ratchet arm 450 m.

As shown in fig. 18 to 20, the knob 500m may include three locking arms 530m, and the detent unit 400m may include three locking protrusions 460m, and each locking arm 530m is engaged with each locking protrusion 460 m. The knob 500m may further include three positioning protrusions 550m inserted into three positioning holes 470m of the detent unit 400m, respectively, so that the detent unit 400m is coupled with the knob 500 m. The detent unit 400m includes three clamp arms 490m, the wire coil 300m includes a positioning ring 390m corresponding to the three clamp arms 490m, when the knob 500m is pulled upward, the detent unit 400m is positioned at a rising position along an axial direction, the three clamp arms 490m are moved from the lower side to the upper side of the positioning ring 390m, so as to position the detent unit 400m, and the detent unit 400m is separated from the engagement teeth 230m disposed on the annular wall 220m when being positioned at the rising position.

The annular wall 220m may include three notches 261m on an upper surface of the annular wall 220 m. Each notch 261m may be adjacent to a portion of the teeth 230m, and each of the teeth 230m adjacent to the notches 261m may be partially cut away to form an upper bevel. When the knob 500m is pushed down, the detent unit 400m is positioned at a lowering position, and the ratchet arm 450m is engaged with the engaging teeth 230m again, and when the detent unit 400m moves from the raising position to the lowering position, the ratchet arm 450m swings radially inwards and enters the inward shrinking slot 410m, and is guided by the notch 261m and the upper inclined surface of the engaging teeth 230m, so that the ratchet arm can be engaged with the engaging teeth 230m again smoothly. Each of the limiting blocks 420m may include an inclined surface 421m, the inclined surface 421m also helping to smoothly engage the ratchet arm 450m with the engagement teeth 230 m.

Referring to fig. 21, 22 and 23, fig. 21 is an exploded view of a fastening device 100n according to embodiment 9 of the present invention, fig. 22 is a cross-sectional view of the fastening device 100n according to embodiment 9 of fig. 21, and fig. 23 is a cross-sectional view of the fastening device 100n according to embodiment 9 of fig. 22 along a cutting line 23-23. The fastening device 100n includes a housing unit (not shown in fig. 21-23), a wire tray 300n, a detent unit 400n, a knob 500n, and a connection unit 600n. The detent unit 400n includes a locking sleeve 610n, a stop ring 621n, and a screw 622n. The fastening device 100n is similar to the fastening device 100m, but the annular wall 220n of the housing unit includes a toothless upper portion 221n, and a gap between the toothless upper portion 221n and the detent unit 400n is configured to receive the tri-detent arm 530n. The knob 500n may further include a plurality of abutting portions 540n, an upper ring groove is formed between the abutting portions 540n and the inner wall of the knob 500n, and the toothless upper portion 221n may be inserted into the upper ring groove. In addition, the abutting portion 540n may be shaped to correspond to the detent unit 400n, but the invention is not limited thereto. Through the above configuration, the structural reliability of the fastening device 100n can be improved.

Referring to fig. 24, 25 and 26, fig. 24 is an exploded view of a fastening device 100p according to the 10 th embodiment of the present invention, fig. 25 is a cross-sectional view of the fastening device 100p of the 10 th embodiment of fig. 24, and fig. 26 is a cross-sectional view of the fastening device 100p of the 10 th embodiment of fig. 25 along the cutting line 26-26. The fastening device 100p includes a housing unit (not shown in fig. 24-26), a wire tray 300p, a detent unit 400p, a knob 500p, and a connection unit 600p. The detent unit 400p includes a locking sleeve 610p, a stop ring 621p, and a screw 622p. The fastening device 100p is similar to the fastening device 100n in that the annular wall 220p of the housing unit includes a toothless upper portion 221p and the knob 500p includes a plurality of abutments 540p, however, the number and shape of the abutments 540p and the abutment 540n are different.

Referring to fig. 27 and 28, fig. 27 is an exploded view of a fastening device 100r according to embodiment 11 of the present invention, and fig. 28 is a cross-sectional view of the fastening device 100r of embodiment 11 of fig. 27. The fastening device 100r includes a housing unit (not labeled in fig. 27 and 28), a wire tray 300r, a detent unit 400r, a knob 500r, a coupling 800r, a ratchet ring 700r, and a connection unit (not labeled in fig. 27 and 28).

The housing unit annular wall 220r may further include four radial lugs 222r facing inward, and the coupling 800r may include a coupling ring 820r corresponding to the four radial lugs 222r. The detent unit 400r is located below the wire coil 300r and includes engagement teeth 710r that the tri-ratchet arm 450r selectively engages on the ratchet ring 700 r. The coupling 800r may further include a plurality of internal teeth 830r corresponding to the mating teeth 320r engaged with the wire coil 300 r. The coupling 800r may further comprise a plurality of first coupling teeth 810r, the detent unit 400r may further comprise a plurality of second coupling teeth 410r, and the coupling 800r may be threaded into the wire coil 300r and the detent unit 400r to allow the first coupling teeth 810r to engage with the second coupling teeth 410r. The connection unit 600r may be composed of a screw 610r, the screw 610r is inserted into the coupling 800r to be locked to the knob 500r, and a head of the screw 610r is limited to the coupling 800r. When the knob 500r is pulled up, the coupling 800r is lifted up and the internal teeth 830r are separated from the fitting teeth 320r, and the restriction of the wire coil 300r can be released to be freely rotated.

Referring to fig. 29 and 30, fig. 29 is an exploded view of a fastening device 100q according to embodiment 12 of the present invention, and fig. 30 is a cross-sectional view of the fastening device 100q of embodiment 12 of fig. 29. The fastening device 100q includes a housing unit (not shown in fig. 29 and 30), a wire tray 300q, a stopper unit 400q, a knob 500q, and a connection unit 600q.

The detent unit 400q includes a detent ring 410q and an inner ring 450q, the inner ring 450q being movably disposed within the detent ring 410 q. Knob 500q includes a threaded shaft 510q threaded into inner ring 450 q. When knob 500q is forced in the release direction, inner ring 450q is lifted by the structure of stud 510q and the threaded bore, thereby separating inner ring 450q from wire coil 300 q. The connection unit 600q includes a stopper ring 621q and a screw 622q, the screw 622q passing through the stopper ring 621q to lock into the stud 510q such that the stopper ring 621q is sandwiched between the end face of the stud 510q and the head of the screw 622 q.

Referring to fig. 31 and 32, fig. 31 is an exploded view of a fastening device 100t according to embodiment 13 of the present invention, and fig. 32 is a cross-sectional view of the fastening device 100t of embodiment 13 of fig. 31. The fastening device 100t includes a housing unit (not shown in fig. 31 and 32), a wire tray 300t, a detent unit 400t, a knob 500t, a ratchet ring 700t, and a connection unit (not shown in fig. 31 and 32). The detent unit 400t may include a detent ring 410t, an inner ring 450t, and a stud 430t. The inner ring 450t is movably positioned on the detent ring 410t and coupled to the wire coil 300t, the stud 430t is coupled to the inner ring 450t, and the detent ring 410t and the ratchet ring 700t are positioned below the wire coil 300 t. The housing unit includes a base 210t and a ring wall 220t, and the base 210t is deep enough to accommodate the ratchet ring 700t and the detent ring 410t. The connection unit is composed of a screw 610t, and the screw 610t is inserted into the stud 430t to be locked to the boss 520t of the knob 500 t. Accordingly, when the knob 500t is rotated in the releasing direction, the inner ring 450t is guided by the stud 430t to be lifted up to be separated from the stopper ring 410t.

Referring to fig. 33 and 34, fig. 33 is an exploded view of a fastening device 100s according to embodiment 14 of the present invention, and fig. 34 is a cross-sectional view of the fastening device 100s of embodiment 14 of fig. 33. The fastening device 100s includes a housing unit (not shown in fig. 33 and 34), a wire tray 300s, a detent unit 400s, a knob 500s, a ratchet ring 700s, and a connection unit (not shown in fig. 33 and 34). The detent unit 400s may include a threaded sleeve 450s, a detent ring 410s, and a threaded stud 430s. The nut 450s is integrally formed with the stopper ring 410s and protrudes upward from the stopper ring 410s into the axial space (not shown in fig. 33 and 34) of the wire coil 300 s. Stud 430s is coupled to threaded sleeve 450s. The connection unit is composed of a screw 610s, and the screw 610s is inserted into the stud 430s to be locked to the boss 520s of the knob 500 s. Accordingly, when the knob 500s is rotated in the releasing direction, the screw sleeve 450s is lowered by the stud 430s to separate the stopper ring 410s from the wire coil 300 s.

Referring to fig. 35 and 36, fig. 35 is a perspective view of a knob 500u of a fastening device according to embodiment 15 of the present invention, and fig. 36 is a perspective view of a detent unit 400u of the fastening device according to embodiment 15 of fig. 35. The fastening device of embodiment 15 is similar to the fastening device 100m of fig. 18 to 20, and the knob 500u may include a three-click arm 530u engaged with the three-click protrusion 460u of the detent unit 400u. The knob 500u may further include three positioning protrusions 550u inserted into three positioning holes 470u of the detent unit 400u. In addition, the knob 500u may further include three radial fingers 560u, and the detent unit 400u may include three radial slots 480u, where each radial finger 560u is engaged with each radial slot 480 u. Accordingly, the detent unit 400u may be coupled with the knob 500u, and the rotational force of the knob 500u may be more effectively transmitted to the detent unit 400u.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, but may be modified and altered in various ways without departing from the spirit and scope of the present invention.

Claims

A fastening device, comprising:

a housing unit comprising:

a surrounding wall surrounding an interior space;

an upper opening communicating with the inner space;

a lower opening opposite to the upper opening and communicating with the inner space; a kind of electronic device with high-pressure air-conditioning system

A base detachably connected to the annular wall directly;

a wire coil located in the inner space and used for winding a tie wire;

a brake unit located in the inner space and selectively preventing the wire coil from rotating towards a releasing direction;

a knob, cover is set on the ring wall; and

a connecting unit connected with at least one of the knob, the wire coil and the braking unit;

wherein at least one of the knob, the connecting unit, the braking unit and the wire coil is limited on the annular wall, so that the annular wall, the wire coil, the braking unit and the knob are assembled into a whole, and the connecting unit does not directly pass through or directly connect with the base.
The fastening device of claim 1, wherein the housing unit further comprises a first inner ring groove at a lower end of the annular wall, and the connection unit comprises a bottom plate received in the first inner ring groove.
The fastening device of claim 2, wherein the housing unit further comprises a second inner ring groove located on the annular wall above the first inner ring groove, the wire coil comprising a lower ring portion received in the second inner ring groove.
The fastening device of claim 2, wherein the connection unit further comprises:

a screw rod connected with the knob; and

and a connecting rod protruding upwards from the chassis to be inserted into an axial space of the wire coil, and connected with the screw rod.
The fastening device of claim 2, wherein the connection unit further comprises:

a convex column protruding downwards from an inner top surface of the knob into an axial space of the wire coil; and

and a screw rod for locking the chassis to the convex column.
The fastening device of claim 2, wherein the connection unit further comprises:

the screw is connected with the knob and limited on the braking unit; and

a plug protruding upward from the chassis to be inserted into an axial space of the wire coil, and coupled to the stopper unit.
The fastening device according to claim 1, wherein the detent unit comprises at least one ratchet arm and at least one limiting block, the at least one ratchet arm being biased against the at least one limiting block when the detent unit is pulled in the releasing direction by a pulling force of the tie.
The fastening device of claim 7, wherein the at least one ratchet arm is located below the at least one limiter block.
The fastening device of claim 8, wherein the detent unit further comprises at least one retraction slot adjacent to the at least one limiting block, the detent unit being positioned in an up position and a down position along an axis, the detent unit being separated from the plurality of engagement teeth disposed on the annular wall when in the up position, the detent unit being moved from the up position toward the down position, the at least one ratchet arm being deflected radially inward and into the at least one retraction slot.
The fastener of claim 9, wherein the at least one limiting block comprises an inclined surface.
The fastening device of claim 1, wherein the knob comprises three clamping arms, the detent unit comprises three clamping protrusions, and each clamping arm is respectively engaged with each clamping protrusion.
The fastening device of claim 11, wherein the annular wall includes a toothless upper portion, and a gap between the toothless upper portion and the detent unit is configured to receive three of the detent arms.
The fastening device of claim 12, wherein the knob further comprises a plurality of abutments forming an upper annular recess between the plurality of abutments and an inner wall of the knob, the toothless upper portion being inserted into the upper annular recess.
The fastening device of claim 13, wherein the knob further comprises three radial fingers, the detent unit further comprises three radial slots, each radial finger being engaged with each radial slot.