CN103967908A - Screw structure - Google Patents
Screw structure Download PDFInfo
- Publication number
- CN103967908A CN103967908A CN201310085943.4A CN201310085943A CN103967908A CN 103967908 A CN103967908 A CN 103967908A CN 201310085943 A CN201310085943 A CN 201310085943A CN 103967908 A CN103967908 A CN 103967908A
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- CN
- China
- Prior art keywords
- head
- screw
- axis
- thread section
- screw structural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000001015 abdomen Anatomy 0.000 claims description 22
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A screw structure is suitable for being screwed in a screw hole with a female thread and comprises a head part and a rod part. The head part takes a first axis as an axis and extends along the first axis, and the rod part is connected and molded at the bottom side of the head part and takes a second axis which is spaced from the first axis as the axis and extends along the second axis. By means of the design mode that the head part is eccentrically arranged on the rod part, the force arm during rotation is increased, and the locking and loosening prevention effects are further improved.
Description
Technical field
The present invention relates to a kind of screw, refer to especially a kind of screw structural.
Background technique
Consult Fig. 1 and Fig. 2, for existing a kind of screw 1, this screw 1 has a head 10 of take an axis L as axle center and extending along this axis L, an and bar portion 11 that is connected in this head 10 and take this axis L as axle center and extend along this axis L, this bar portion 11 has one around the thread section 111 of this axis L, wherein, this head 10 and this bar portion 11 are that the mode with coaxial line configures, so operate this head 10 when driving this bar portion 11 to rotate when user utilizes a hand tools (not shown), it rotates the perpendicular distance that the arm of force is L to point of application of force of this axis, therefore the arm of force while rotating packing, to lean on the length of this hand tools to provide completely, 1 body structure of this screw there is no any contribution on the arm of force.
On the other hand, fit at workpiece, this screw 1 is that both are fixed for having perforation first workpiece 300 of 301 and second workpiece with a screw 401 400 by one, owing to must having tolerance on a box thread 402 of this screw 401 and these thread section 111 dimensional fits of this screw 1, when user rotates this screw 1 and carries out packing, at not stressed side 112 and 402 of this box threads of this thread section 111, will certainly produce a back clearance 500.Yet, aforementioned back clearance 500 is interior because can be mingled with air, so, under long-time use, can gradually cause this thread section 111 of this screw 1 or this box thread 402 of this screw 401 to weather, if while having again the affecting of the external force suffered or vibration, and easily cause this screw 1 situation that gets loose to occur simultaneously.For above-mentioned shortcoming, although existing people utilize and connect solid agent and improve,, thus, certainly will be again increase this and connect the cost cost of solid agent, and in assembling also many procedures, therefore space to be improved still.
Summary of the invention
The object of the present invention is to provide and a kind ofly can there is good locking and anti-loose effect and rotate the screw structural that the arm of force is larger.
Screw structural of the present invention, comprises a head, and a bar portion.
This head be take a first axle as axle center and is extended along this first axle.
This bar portion connect take shape in this head bottom side and take one with this first axle the second axis separately as axle center and along this second Axis Extension.
Screw structural of the present invention, this head has a spanner groove being down arranged with by end face.
Screw structural of the present invention, being arranged with in this head of this spanner groove bias.
Screw structural of the present invention, to be applicable to screw lock in a screw with a box thread, this bar portion comprises that one around first thread section of this second axis, and one around this second axis and the second thread section between between this first thread section and this head, this first thread section have one back on this head and with this box thread first dorsal part outside of belly separately, and one be intended for this head and stick to first outside of belly on the pressure side in this box thread, this second thread section has one back on this head and sticks to the second dorsal part outside of belly in this box thread, and one be intended for this head and stick to second outside of belly on the pressure side in this box thread.
Screw structural of the present invention, the length of this second thread section is more than or equal to half of this bar minister degree.
Screw structural of the present invention, this bar portion is slightly tapering and along this second axis and towards away from this cephalad direction contracting Shu Yanshen.
Screw structural of the present invention, the cross-sectional shape of this head is circular.
Screw structural of the present invention, the cross-sectional shape of this head is petal.
Beneficial effect of the present invention is: by this head and this bar portion, be bias but not the design of coaxial line, allow user can have the larger rotation arm of force when rotating, thus, can be comparatively laborsaving in the application of force, and then promote locking with anti-loose on effect.
Accompanying drawing explanation
Fig. 1 is a sectional view, and the situation of existing a kind of screw screw lock is described;
Fig. 2 is a partial enlarged drawing of existing this screw;
Fig. 3 is the sectional view of first preferred embodiment of screw structural of the present invention, and the situation of screw lock is described;
Fig. 4 is a partial enlarged drawing of this first preferred embodiment, and first thread section and second thread section of a bar portion is described;
Fig. 5 is a plan view of this first preferred embodiment;
Fig. 6 is the sectional view of second preferred embodiment of screw structural of the present invention;
Fig. 7 is the sectional view of the 3rd preferred embodiment of screw structural of the present invention;
Fig. 8 is the sectional view of the 4th preferred embodiment of screw structural of the present invention;
Fig. 9 is the sectional view of the 5th preferred embodiment of screw structural of the present invention;
Figure 10 is a plan view of the 5th preferred embodiment, and a head and a spanner groove are described;
Figure 11 is the sectional view of the 6th preferred embodiment of screw structural of the present invention;
Figure 12 is a plan view of the 6th preferred embodiment, and a head and a spanner groove are described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 3, Fig. 4, and Fig. 5, the first preferred embodiment of screw structural of the present invention, is applicable to screw lock in a screw 201 with a box thread 202, and this screw structural comprises a head 2, and a bar portion 3.And this head 2 and this bar portion 3 are made of one piece for metal material.
This head 2 be take a first axle L1 as axle center and is extended along this first axle L1, use for hand tools operation and use, and in this first preferred embodiment, this head 2 has a spanner groove 21 that is down arranged with by end face neutral position and plants for inner hexagon spanner (not shown).
This bar portion 3 connects and takes shape in this head 2 bottom sides, this bar portion 3 take one with this first axle L1 the second axis L2 separately as axle center and along this second axis L2 court away from head 2 directions contracting Shu Yanshen gradually.This bar portion 3 comprises that one around first thread section 31 of this second axis L2, and one around this second axis L2 and between the second thread section 32 of 2, this first thread section 31 and this head.Wherein, in this first preferred embodiment, the diameter that this bar portion 3 is connected in these head 2 places is first diameter d 1, the diameter at these bar portion 3 middle section position places is a Second bobbin diameter d2, the diameter of these bar portion 3 tail ends is the 3rd diameter d 3, and meet the relation of this Second bobbin diameter of this first diameter d 1> d2> the 3rd diameter d 3, allow this bar portion 3 there is micro-tapering profile, and the length of this second thread section 32 equal these bar portion 3 length half.Certainly, on other Practical manufacturing, the length of this second thread section 32 also can be designed to be greater than half of these bar portion 3 length, but still not as restriction.
This first thread section 31 have one back on this head 2 and with this box thread 202 first dorsal part outside of belly 311 separately, and one be intended for this head 2 and stick to first outside of belly 312 on the pressure side in this box thread 202.Wherein, the structure of this first thread section 31 is to be equal in background technique described thread section 111 (seeing Fig. 1), is to be general thread forms known on the market.
This second thread section 32 has one back on this head 2 and sticks to the second dorsal part outside of belly 321 in this box thread 202, and one is intended for this head 2 and sticks to second outside of belly 322 on the pressure side in this box thread 202.Wherein, these the second dorsal part outside of belly 321 profile profiles and this second on the pressure side profile profile of the outside of belly 322 is not symmetrical, as shown in Figure 4, be positioned at the part amplification that imaginary line top is this second thread section 32, be positioned at the part that imaginary line below is this first thread section 31 and amplify, in Fig. 4, can clearly recognize, the tooth distance of this first thread section 31 is P1, the tooth distance of this second thread section 32 is P2, and this first thread section 31 has identical tooth distance with this second thread section 32.This second dorsal part outside of belly 321 is comparatively to deviate from the line M of thread center compared to this first dorsal part outside of belly 311, that is to say, this the second dorsal part outside of belly 321 of this second thread section 32 is the forms of tooth of comparatively satisfying, to such an extent as to when this box thread 202 of packing, this the second dorsal part outside of belly 321 can fit tightly with this box thread 202, this feature is that the state when being packed in this box thread 402 (seeing Fig. 2) is different from this thread section 111 (seeing Fig. 2) in background technique.
On assembly is used, first that first workpiece 100 with a perforation 101 is superimposed each other with this second workpiece 200 with this screw 201, and after making this perforation 101 aligned with each other with this screw 201, again this bar portion 3 is bored a hole to 101 through this, and utilize inner hexagon spanner to operate this head 2 rotations, to carry out at leisure packing action, and at the beginning during the application of force, because this first thread section 31 first touches this box thread 202, it is because the relation that has tolerance to exist on dimensional fits, so, comparatively laborsaving in the application of force, and be gradually rotated and move down to while allowing this second thread section 32 touch this box thread 202 when this bar portion 3, due to this second dorsal part outside of belly 321 with this second on the pressure side the outside of belly 322 be to be all close to be butted on this box thread 202 both sides, so, in the application of force, to execute larger strength, but thus, after complete packing, can effectively reduce the generation of back clearance, and then promote locking with anti-loose on effect.
In addition, due to this head 2 and this bar portion 3, both are respectively that mode with non co axial line designs, that is the eccentric meaning, as shown in Figure 5, therefore must there is an offset X 1 between this head 2 and this bar portion 3 its axle center, and compared to background technique, because this head 10 (seeing Fig. 1) and this bar portion 11 (seeing Fig. 1) are therefore be that coaxial line can not have this offset X 1.So, when user utilizes inner hexagon spanner to rotate this head 2 of the present invention, its arm of force length is an application of force source F to the summation of perpendicular distance X2 between this first axle L1 and this offset X 1, so compared to background technique, the present invention is due to many these offset X 1, therefore increased the arm of force, so, on rotation urging, be can be more laborsaving and be beneficial to packing.
Consult again Fig. 3, because this head 2 is to be eccentric in this bar portion 3, so after packing locking, these head 2 bottom sides are to contact with this first workpiece 100 with asymmetrical surface of contact, a large contact surface S1 and a little surface of contact S2 as shown in Figure 3, thus, because the area of this large contact surface S1 is large, its frictional resistance producing also can be larger, therefore can allow the present invention after packing, more difficultly affected by external force and produce the phenomenon that gets loose.
Consult Fig. 6, the second preferred embodiment for screw structural of the present invention, its content is roughly identical with this first preferred embodiment, its difference be in: the cross-sectional shape of this head 2 is hexagon, is the aspect being designed for for the operation of open-end wrench (not shown).
Consulting Fig. 7, is the 3rd preferred embodiment of screw structural of the present invention, and its content is roughly identical with this first preferred embodiment, its difference be in: the monnolithic case of this head 2 slightly becomes hemisphere.
Consult Fig. 8, the 4th preferred embodiment for screw structural of the present invention, its content is roughly identical with this first preferred embodiment, its difference be in: the monnolithic case of this head 2 slightly becomes hemisphere, and this spanner groove 21 is eccentric being arranged with in this head 2, thus, more increased the arm of force, can be more laborsaving in the application of force, to promote packing and anti-loose effect.
Consult Fig. 9 and Figure 10, the 5th preferred embodiment for screw structural of the present invention, its content is roughly identical with this first preferred embodiment, it is eccentric being arranged with in this head 2 that its difference is in: this spanner groove 21, thus, more increased the arm of force, can be more laborsaving in the application of force, to promote packing and anti-loose effect.
Consult Figure 11 and Figure 12, the 6th preferred embodiment for screw structural of the present invention, its content is roughly identical with this first preferred embodiment, its difference be in: the cross-sectional shape of this head 2 is petal, be the aspect being designed for for the operation of double off-set spanners (not shown), comparatively laborsaving in its application of force.In addition, this spanner groove 21 is eccentric being arranged with in this head 2, thus when selecting to utilize Allen wrench to operate, increase too the arm of force, also can be comparatively laborsaving in the application of force, two features like this, all can be in order to promote packing and anti-loose effect.
In sum, screw structural of the present invention has following advantages and effect:
One, by this head 2 and this bar portion 3, both are bias but not the design of coaxial line, allow user when rotating, and can have the larger arm of force, thus, rotate upper can be comparatively laborsaving, and then promote locking and anti-loose on effect.
Two, this second dorsal part outside of belly 321 by this second thread section 32 can stick in the design of this box thread 202, and after packing, the present invention can effectively reduce back clearance and produce, so promote significantly locking with anti-loose on effect.
Three, this second dorsal part outside of belly 321 by this second thread section 32 can stick in the design of this box thread 202, after packing, can effectively reduce back clearance and produce, thus relatively can reduce the use that connects solid agent, with the operation on reducing assembly cost and assembling.
Claims (8)
1. a screw structural, comprises a head and a bar portion, it is characterized in that:
This head be take a first axle as axle center and is extended along this first axle;
This bar portion connect take shape in this head bottom side and take one with this first axle the second axis separately as axle center and along this second Axis Extension.
2. screw structural as claimed in claim 1, is characterized in that: this head has a spanner groove being down arranged with by end face.
3. screw structural as claimed in claim 2, is characterized in that: being arranged with in this head of this spanner groove bias.
4. if claim 1 is to the screw structural as described in any one in claim 3, it is characterized in that: this screw structural is applicable to screw lock in a screw with a box thread, this bar portion comprises that one around first thread section of this second axis, and one around this second axis and the second thread section between between this first thread section and this head, this first thread section have one back on this head and with this box thread first dorsal part outside of belly separately, and one be intended for this head and stick to first outside of belly on the pressure side in this box thread, this second thread section has one back on this head and sticks to the second dorsal part outside of belly in this box thread, and one be intended for this head and stick to second outside of belly on the pressure side in this box thread.
5. screw structural as claimed in claim 4, is characterized in that: the length of this second thread section is more than or equal to half of this bar minister degree.
6. screw structural as claimed in claim 1, is characterized in that: this bar portion is slightly tapering and along this second axis and towards away from this cephalad direction contracting Shu Yanshen.
7. screw structural as claimed in claim 1, is characterized in that: the cross-sectional shape of this head is for circular.
8. screw structural as claimed in claim 1, is characterized in that: the cross-sectional shape of this head is petal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102104603A TW201432167A (en) | 2013-02-06 | 2013-02-06 | Screw structure |
| TW102104603 | 2013-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967908A true CN103967908A (en) | 2014-08-06 |
Family
ID=51237796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310085943.4A Pending CN103967908A (en) | 2013-02-06 | 2013-03-18 | Screw structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103967908A (en) |
| TW (1) | TW201432167A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545922A (en) * | 2016-01-26 | 2016-05-04 | 深圳市中金科五金制造有限公司 | Complete-thread guide screw good in locking performance |
| CN110446862A (en) * | 2017-03-24 | 2019-11-12 | 日本发条株式会社 | Secure component |
| CN112601896A (en) * | 2018-08-31 | 2021-04-02 | 哈得螺克工业株式会社 | Screw fastening structure with locking function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037390A (en) * | 1978-12-22 | 1980-07-09 | B & A Eng Co | Fixing device and tool therefor |
| EP0644339A1 (en) * | 1993-08-19 | 1995-03-22 | Nedschroef Holding N.V. | Anti-cross thread fastener with cleaning tip |
| JPH1089334A (en) * | 1996-09-11 | 1998-04-07 | Sho Bond Constr Co Ltd | Eccentric anchor bolt |
| US6210091B1 (en) * | 1999-03-25 | 2001-04-03 | Kawasaki Steel Corporation | Lock nut |
| CN200993149Y (en) * | 2006-12-22 | 2007-12-19 | 魏民 | Eccentric self-locking nut |
| CN101187391A (en) * | 2007-12-20 | 2008-05-28 | 北京市建筑工程装饰有限公司 | Eccentric screw bolt and its assemblage and construction method |
| CN201507052U (en) * | 2009-09-29 | 2010-06-16 | 泛华建设集团有限公司 | Removable inner curtain wall eccentric screw bolt connection hanging element |
| CN201771919U (en) * | 2010-08-18 | 2011-03-23 | 浙江捷能汽车零部件有限公司 | Transmission shaft bolt |
| CN203146530U (en) * | 2013-02-06 | 2013-08-21 | 陈顺宝 | Screw structure |
-
2013
- 2013-02-06 TW TW102104603A patent/TW201432167A/en unknown
- 2013-03-18 CN CN201310085943.4A patent/CN103967908A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037390A (en) * | 1978-12-22 | 1980-07-09 | B & A Eng Co | Fixing device and tool therefor |
| EP0644339A1 (en) * | 1993-08-19 | 1995-03-22 | Nedschroef Holding N.V. | Anti-cross thread fastener with cleaning tip |
| JPH1089334A (en) * | 1996-09-11 | 1998-04-07 | Sho Bond Constr Co Ltd | Eccentric anchor bolt |
| US6210091B1 (en) * | 1999-03-25 | 2001-04-03 | Kawasaki Steel Corporation | Lock nut |
| CN200993149Y (en) * | 2006-12-22 | 2007-12-19 | 魏民 | Eccentric self-locking nut |
| CN101187391A (en) * | 2007-12-20 | 2008-05-28 | 北京市建筑工程装饰有限公司 | Eccentric screw bolt and its assemblage and construction method |
| CN201507052U (en) * | 2009-09-29 | 2010-06-16 | 泛华建设集团有限公司 | Removable inner curtain wall eccentric screw bolt connection hanging element |
| CN201771919U (en) * | 2010-08-18 | 2011-03-23 | 浙江捷能汽车零部件有限公司 | Transmission shaft bolt |
| CN203146530U (en) * | 2013-02-06 | 2013-08-21 | 陈顺宝 | Screw structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545922A (en) * | 2016-01-26 | 2016-05-04 | 深圳市中金科五金制造有限公司 | Complete-thread guide screw good in locking performance |
| CN110446862A (en) * | 2017-03-24 | 2019-11-12 | 日本发条株式会社 | Secure component |
| US11286972B2 (en) | 2017-03-24 | 2022-03-29 | Nhk Spring Co., Ltd. | Fastening member |
| CN112601896A (en) * | 2018-08-31 | 2021-04-02 | 哈得螺克工业株式会社 | Screw fastening structure with locking function |
| CN112601896B (en) * | 2018-08-31 | 2022-04-08 | 哈得螺克工业株式会社 | Screw fastening structure with locking function |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201432167A (en) | 2014-08-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |