Fastening device
阅读说明:本技术 紧固装置 (Fastening device ) 是由 陈金柱 于 2019-04-30 设计创作,主要内容包括:本发明提供一种紧固装置,其包含外壳单元、旋钮以及掣动单元,外壳单元包含侧壁及多个咬合齿,侧壁环绕形成容置空间,多个咬合齿自侧壁朝容置空间凸伸。旋钮可盖设于外壳单元;掣动单元位于容置空间,掣动单元对应咬合齿且选择性耦合于旋钮。其中,旋钮沿轴向于第一位置及第二位置间切换,当旋钮位于第一位置时耦合于掣动单元,使旋钮与掣动单元同动,掣动单元与至少一咬合齿卡合以阻止旋钮朝第一方向转动,当旋钮位于第二位置时,旋钮远离掣动单元且与掣动单元分离,掣动单元不阻止旋钮往第一方向转动。借此增加结构可靠度。(The invention provides a fastening device which comprises a shell unit, a knob and a braking unit, wherein the shell unit comprises a side wall and a plurality of meshing teeth, the side wall surrounds to form an accommodating space, and the meshing teeth protrude from the side wall to the accommodating space. The knob can be covered on the shell unit; the braking unit is positioned in the accommodating space, corresponds to the meshing teeth and is selectively coupled with the knob. When the knob is located at the second position, the knob is far away from the braking unit and is separated from the braking unit, and the braking unit does not prevent the knob from rotating towards the first direction. Thereby increasing the structural reliability.)
1. A fastening device, comprising:
a housing unit, comprising: a side wall surrounding to form a containing space; a partition part radially protruding from the side wall to divide the accommodating space into an upper accommodating chamber and a lower accommodating chamber; and a plurality of engaging teeth located in the upper chamber;
a wire coil located in the lower chamber and including a flexible clamping part;
a positioning shaft, which is arranged through the wire coil to be coupled with the flexible clamping part and is provided with an axial direction;
The knob is covered on the shell unit and connected with the positioning shaft; and
the braking unit is positioned in the upper accommodating chamber, corresponds to the plurality of meshing teeth and is selectively coupled with the knob;
when the knob is located at the second position, the knob is separated from the braking unit, and the braking unit does not prevent the wire coil from rotating towards the first direction.
2. The fastening device of claim 1, wherein the wire coil comprises:
a hollow main body, which comprises an inner peripheral wall surrounding to form a through space for the positioning shaft to pass through;
an upper ring part, which protrudes outwards from one end of the hollow main body in the radial direction; and
a lower ring part protruding outward from the other end of the hollow main body in a radial direction;
wherein, a winding track is formed between the upper ring part and the lower ring part, and the flexible clamping part protrudes from the inner peripheral wall to the through space to be coupled with the positioning shaft.
3. The fastening device according to claim 2, wherein the positioning shaft includes a positioning protrusion, the positioning protrusion is located on one side of the flexible locking portion when the knob is located at the first position, and the positioning protrusion pushes the flexible locking portion to deform and then locate on the other side of the flexible locking portion when the knob is switched from the first position to the second position along the axial direction.
4. The fastening device according to claim 1, wherein the housing unit further comprises a limiting portion, the limiting portion is located in the upper chamber and connected to the partition portion, and the limiting portion limits the stopper unit.
5. The fastening device of claim 4, wherein the housing unit comprises a through hole located in the partition portion, the limiting portion comprises four limiting arms spaced around the through hole, and a free end of each limiting arm limits the stopper unit.
6. The fastening device of claim 5, wherein the knob includes a first plurality of driving teeth, the detent unit includes a first plurality of engaging teeth, the first plurality of driving teeth engage the first plurality of engaging teeth when the knob is in the first position, and the first plurality of driving teeth disengage from the first plurality of engaging teeth when the knob is in the second position.
7. The fastening device of claim 6, wherein the knob further comprises:
a cover body covering the housing unit;
a convex column which is arranged on the cover body and extends into the through hole; and
and the plurality of second driving teeth are positioned at the far end of the convex column far away from the cover body so as to be coupled with the wire coil.
8. The fastening device according to claim 6,
the knob further comprises: a cover body covering the housing unit; a convex column which is arranged on the cover body and corresponds to the through hole; the second driving teeth are positioned at the far end of the convex column far away from the cover body;
the fastening device further comprises a planetary gear set comprising: a sun gear engaged with the plurality of second driving teeth; the planetary gears are arranged on the wire coil at intervals and are meshed with the sun gear; and is
The housing unit further comprises: and the planetary internal teeth are positioned in the lower accommodating chamber and are meshed with the planetary gears.
9. A fastening device, comprising:
a housing unit, comprising: a side wall surrounding to form a containing space; and a plurality of engaging teeth protruding from the side wall toward the accommodating space;
a knob covering the housing unit; and
The braking unit is positioned in the accommodating space, corresponds to the plurality of meshing teeth and is selectively coupled with the knob;
when the knob is located at the second position, the knob is far away from the braking unit and is separated from the braking unit, and the braking unit does not prevent the knob from rotating towards the first direction.
10. The fastening device of claim 9, further comprising:
a wire coil which is limited in the containing space and comprises a flexible clamping part; and
a positioning shaft, which is arranged through the wire coil to be coupled with the flexible clamping part, has the axial direction and is linked by the knob;
wherein the knob is coupled to the spool when in the first position.
11. A fastening device according to claim 10, wherein the wire coil comprises:
a hollow main body, which comprises an inner peripheral wall surrounding to form a through space for the positioning shaft to pass through;
An upper ring part, which protrudes outwards from one end of the hollow main body in the radial direction; and
a lower ring part protruding outward from the other end of the hollow main body in a radial direction;
wherein, a winding track is formed between the upper ring part and the lower ring part, and the flexible clamping part protrudes from the inner peripheral wall to the through space to be coupled with the positioning shaft.
12. The fastening device according to claim 11, wherein the positioning shaft includes a positioning protrusion, the positioning protrusion is located on one side of the flexible locking portion when the knob is located at the first position, and the positioning protrusion pushes the flexible locking portion to deform and then locate on the other side of the flexible locking portion when the knob is switched from the first position to the second position along the axial direction.
Technical Field
The present invention relates to a fastening device, and more particularly, to a fastening device capable of winding and unwinding a tie line.
Background
In daily life, a string such as a rope or a lace is often used to bind an article, and the most common means for binding is to use the string to pass through a hole on the article back and forth and then to be fixed by a knot, such as tying a rope to a shoe. However, the tying means is easy to loosen the knot due to external force factors, and not only the knot must be tied again, but also a lot of inconvenience is brought because the article cannot be tied firmly.
In order to solve the above problems, some manufacturers have developed a simple wire binding mechanism, which includes a housing, a braking unit and a spring, wherein the housing has a through hole for the wire to pass through, the wire is clamped between the braking unit and the housing by the acting force between the spring and the braking unit to achieve the fastening effect, and the spring is pressed to change the position of the braking unit so as to pull the wire to change the length of the wire. However, the wire bundling mechanism provides a fastening force through a restoring force of the spring, the wire is still easily loosened by vibration or external force, and the wire bundling mechanism has no space for accommodating the wire, so that the wire is exposed and is easily dangerous.
Therefore, another buckle capable of rotating, bundling and fixing the laces is developed by the industry, the line body of the buckle can be accommodated in the buckle, the length of the line body can be adjusted through mechanical interference of an internal component, and meanwhile, the bundling tightness 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, there is a need for a buckle that can maintain the fastening ability of the buckle while simplifying the structure and increase the reliability of the structure to avoid the reduction of the life span.
In view of the above, it is an object of the present invention to improve the structure of a fastening device such as a buckle.
Disclosure of Invention
The invention provides a fastening device, which can simplify the structure and increase the structure reliability through the integral structure configuration.
According to an embodiment of an aspect of the present invention, a fastening device is provided, which includes a housing unit, a wire coil, a positioning shaft, a knob, and a detent unit, wherein the housing unit includes a sidewall, a partition portion, and a plurality of engaging teeth, the sidewall surrounds to form a receiving space, the partition portion radially protrudes from the sidewall to divide the receiving space into an upper receiving chamber and a lower receiving chamber, and the plurality of engaging teeth are located in the upper receiving chamber. The wire coil is positioned in the lower accommodating chamber and comprises a flexible clamping part; the positioning shaft penetrates through the wire coil to be coupled with the flexible clamping part, and the positioning shaft is provided with an axial direction. The knob can be covered on the shell unit and is connected with the positioning shaft; the braking unit is positioned in the upper chamber, corresponds to the meshing teeth and is selectively coupled with the knob. When the knob is located at the second position, the knob is separated from the braking unit, and the braking unit does not prevent the wire coil from rotating towards the first direction.
Therefore, only the knob moves along the axial direction, the braking unit still remains in the original position, and the structural reliability can be improved.
According to various embodiments of the fastening device, the wire coil may include a hollow main body, an upper ring portion and a lower ring portion, the hollow main body includes an inner peripheral wall surrounding a through space for the positioning shaft to pass through, the upper ring portion protrudes radially outward from one end of the hollow main body, and the lower ring portion protrudes radially outward from the other end of the hollow main body; wherein, a winding track is formed between the upper ring part and the lower ring part, and the flexible clamping part protrudes from the inner peripheral wall to the through space to be coupled with the positioning shaft. Alternatively, the positioning shaft may include a positioning protrusion, the positioning protrusion is located on one side of the flexible card portion when the knob is located at the first position, and the positioning protrusion pushes the flexible card portion to deform and then locate on the other side of the flexible card portion when the knob is switched from the first position to the second position along the axial direction.
According to various embodiments of the fastening device, the housing unit may further include a limiting portion, the limiting portion is located in the upper accommodating chamber and connected to the partition portion, and the limiting portion limits the detent unit. Or, the shell unit may include a through hole located at the partition portion, the limiting portion includes four limiting arms surrounding the through hole at intervals, and a free end of each limiting arm limits the detent unit.
According to various embodiments of the fastening device, the knob may comprise a plurality of first driving teeth, the detent unit comprises a plurality of first engaging teeth, the first driving teeth engage with the first engaging teeth when the knob is in the first position, and the first driving teeth are separated from the first engaging teeth when the knob is in the second position. Or, the knob may further include a cover body, a protruding column and a plurality of second driving teeth, the cover body covers the housing unit; the convex column is arranged on the cover body and extends into the through hole, and the plurality of second driving teeth are positioned at the far end of the convex column far away from the cover body and are coupled with the wire coil. Or, the knob may further include a cover body, a protruding column and a plurality of second driving teeth, the cover body covers the housing unit; the convex column is arranged on the cover body and corresponds to the through hole, and the plurality of second driving teeth are positioned at the far end of the convex column, which is far away from the cover body; the fastening device also comprises a planetary gear set, the planetary gear set comprises a sun gear and a plurality of planetary gears, and the sun gear is meshed with the second driving gear; the plurality of planet gears are arranged on the wire coil at intervals and are meshed with the sun gear; and the shell unit also comprises a plurality of planet internal teeth which are positioned in the lower chamber and are meshed with the plurality of planet gears.
According to another aspect of the present invention, a fastening device is provided, which includes a housing unit, a knob, and a detent unit, wherein the housing unit includes a sidewall and a plurality of engaging teeth, the sidewall surrounds to form a receiving space, and the plurality of engaging teeth protrude from the sidewall toward the receiving space. The knob can be covered on the shell unit; the braking unit is positioned in the accommodating space, corresponds to the meshing teeth and is selectively coupled with the knob. The knob is switched between a first position and a second position along an axial direction, the knob is coupled to the braking unit when located at the first position, the knob and the braking unit are made to move simultaneously, the braking unit is clamped with the at least one meshing tooth to prevent the knob from rotating towards a first direction, when located at the second position, the knob is far away from the braking unit and is separated from the braking unit, and the braking unit does not prevent the knob from rotating towards the first direction.
Therefore, only the knob moves along the axial direction, the braking unit still remains in the original position, and the structural reliability can be improved.
According to a plurality of embodiments of the fastening device, the fastening device may further include a wire coil and a positioning shaft, the wire coil is limited in the accommodating space and includes a flexible clamping portion, the positioning shaft is disposed through the wire coil to be coupled with the flexible clamping portion, the positioning shaft has an axial direction, and the positioning shaft is linked by a knob, wherein the knob is coupled with the wire coil when located at the first position.
According to various embodiments of the fastening device, the wire coil may include a hollow main body, an upper ring portion and a lower ring portion, the hollow main body includes an inner peripheral wall surrounding a through space for the positioning shaft to pass through, the upper ring portion protrudes radially outward from one end of the hollow main body, and the lower ring portion protrudes radially outward from the other end of the hollow main body; wherein, a winding track is formed between the upper ring part and the lower ring part, and the flexible clamping part protrudes from the inner peripheral wall to the through space to be coupled with the positioning shaft. Alternatively, the positioning shaft may include a positioning protrusion, the positioning protrusion is located on one side of the flexible card portion when the knob is located at the first position, and the positioning protrusion pushes the flexible card portion to deform and then locate on the other side of the flexible card portion when the knob is switched from the first position to the second position along the axial direction.
Drawings
FIG. 1 is a perspective view of a fastening device according to an embodiment of the present invention;
FIG. 2 illustrates an exploded view of the fastening device of FIG. 1;
FIG. 3 illustrates another exploded view of the fastening device of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the fastening device of FIG. 1;
FIG. 5 depicts another cross-sectional schematic view of the fastening device of FIG. 1;
FIG. 6 is a perspective view of a fastening device according to another embodiment of the present invention;
FIG. 7 illustrates an exploded view of the fastening device of FIG. 6;
FIG. 8 illustrates another exploded view of the fastening device of FIG. 6;
FIG. 9 is a schematic cross-sectional view of the fastening device of FIG. 6; and
fig. 10 shows another cross-sectional view of the fastening device of fig. 6.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. For the purpose of clarity, numerous implementation details are set forth in the following description. However, the reader should understand that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, these implementation details are not necessary. In addition, for the sake of simplicity, some conventional structures and elements are shown in the drawings in a simple schematic manner; and repeated elements will likely be referred to using the same reference number or similar reference numbers.
In addition, when an element (or a mechanism or module, etc.) is "connected," "disposed" or "coupled" to another element, it can be directly connected, disposed or coupled to the other element, or it can be indirectly connected, disposed or coupled to the other element, that is, there are other elements between the element and the other element. When an element is explicitly connected, directly disposed, or directly coupled to another element, it is intended that no other element is interposed between the element and the other element. The terms first, second, third, etc. are used merely to describe various elements or components, but the elements/components themselves are not limited, so that the first element/component can be also referred to as the second element/component. And the combination of elements/components/mechanisms/modules herein is not a commonly known, conventional or known combination in the art, and cannot be readily determined by one of ordinary skill in the art based on whether the elements/components/mechanisms/modules are known per se.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, wherein fig. 1 is a schematic perspective view illustrating a
The
Therefore, only when the
The
The
The
The
Specifically, the inner
When the
The winding rail T1 may be used for winding a tie line (not shown), and the
The
The
In this embodiment, the
As shown in fig. 4, when the
As shown in fig. 5, when the user wants to release the wire tying, the user can pull the
Referring to fig. 6, 7, 8, 9 and 10, wherein fig. 6 is a perspective view of a
More specifically, the
The stud 520a has a recess (not shown) at the distal end thereof, the second drive tooth 530a is located in the recess, the sun gear 810a is engaged with the recess to engage with the second drive tooth 530a, and the drum 300a includes four pivots 350a for pivoting the four planetary gears 820 a.
The partition 230a of the
Therefore, as shown in fig. 9, when the
As shown in fig. 10, when the user wants to release the wire tying, the
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:一种自动捆绑机