CN203146530U - Screw structure - Google Patents
Screw structure Download PDFInfo
- Publication number
- CN203146530U CN203146530U CN 201320122693 CN201320122693U CN203146530U CN 203146530 U CN203146530 U CN 203146530U CN 201320122693 CN201320122693 CN 201320122693 CN 201320122693 U CN201320122693 U CN 201320122693U CN 203146530 U CN203146530 U CN 203146530U
- Authority
- CN
- China
- Prior art keywords
- head
- axis
- screw
- 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.)
- Expired - Fee Related
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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Images
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (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 utility model relates to a kind of screw, refers to a kind of screw structural especially.
Background technique
Consult Fig. 1 and Fig. 2, be existing a kind of screw 1, it is axle center and the head 10 that extends along this axis L with an axis L that this screw 1 has one, and one be connected in this head 10 and be axle center and the bar portion 11 of extending along this axis L with 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 disposes, so when the user utilizes a hand tools (not shown) to operate this head 10 to rotate to drive this bar portion 11, it rotates the perpendicular distance that the arm of force is L to point of application of force of this axis, so arm of force when rotating packing, be to lean on the length of this hand tools to provide fully, 1 body structure of this screw there is no any contribution at the arm of force.
On the other hand, fit at workpiece, this screw 1 be with one have perforation first workpiece 300 of 301 and one have a screw 401 second workpiece 400 both fix, because cooperating with these thread section 111 sizes of this screw 1, a box thread 402 of this screw 401 must have tolerance, when the user rotates this screw 1 and carries out packing, will certainly produce a back clearance 500 at not stressed side 112 and 402 of this box threads of this thread section 111.Yet, in the aforementioned back clearance 500 because can be mingled with air, so, under long-time the use, can cause this thread section 111 of this screw 1 or this box thread 402 of this screw 401 to weather gradually, when as if the while influencing of the external force suffered or vibration being arranged again, and cause this screw 1 situation that gets loose to take place easily.At above-mentioned shortcoming, though 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, so still remain the space of improving.
Summary of the invention
The purpose of this utility model is to provide a kind of can be had good locking and anti-loose effect and rotate the bigger screw structural of the arm of force.
The utility model screw structural comprises a head, and a bar portion.
This head is the axle center with a first axle and extends along this first axle.
This bar portion connects and takes shape in this head bottom side and be axle center and along this second axis extension with one with this first axle second axis separately.
Screw structural of the present utility model, this head have a spanner groove that down is arranged with by end face.
Screw structural of the present utility model, being arranged with in this head of this spanner groove off-centre.
Screw structural of the present utility model, be to be fit to screw lock in a screw with a box thread, this bar portion comprises one around first thread section of this second axis, reach one around this second axis and 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 first outside of belly on the pressure side that this head and subsides are butted on this box thread, this second thread section has one and is butted on the second dorsal part outside of belly of this box thread back on this head and subsides, and one is intended for second outside of belly on the pressure side that this head and subsides are butted on this box thread.
Screw structural of the present utility model, the length of this second thread section is more than or equal to half of this bar minister degree.
Screw structural of the present utility model, this bar portion slightly is tapering and along this second axis and towards away from this cephalad direction contracting Shu Yanshen.
Screw structural of the present utility model, the cross-sectional shape of this head are circular.
Screw structural of the present utility model, the cross-sectional shape of this head are petal.
The beneficial effects of the utility model are: be off-centre but not the design of coaxial line by this head and this bar portion, allow the user when rotating, the bigger rotation arm of force can be arranged, thus, can be comparatively laborsaving on the application of force, and then promote locking with anti-loose on effect.
Description of drawings
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 the utility model screw structural, 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 the utility model screw structural;
Fig. 7 is the sectional view of the 3rd preferred embodiment of the utility model screw structural;
Fig. 8 is the sectional view of the 4th preferred embodiment of the utility model screw structural;
Fig. 9 is the sectional view of the 5th preferred embodiment of the utility model screw structural;
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 the utility model screw structural;
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 utility model is elaborated.
Consult Fig. 3, Fig. 4, and Fig. 5, first preferred embodiment of the utility model screw structural is fit 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 is made of one piece for metal material with this bar portion 3.
This head 2 is the axle center with a first axle L1 and extends along this first axle L1, use for the hand tools operation and use, and in this first preferred embodiment, this head 2 has one and down is arranged with by the end face neutral position and for the inner hexagon spanner (not shown) spanner groove 21 of use of planting.
This bar portion 3 connects and takes shape in this head 2 bottom sides, this bar portion 3 with one with this first axle L1 second axis L2 separately be the axle center and along this second axis L2 and court away from head 2 directions contracting Shu Yanshen gradually.This bar portion 3 comprises one around first thread section 31 of this second axis L2, and one around this second axis L2 and between second thread section 32 of 2 on 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 second diameter d 2, the diameter of these bar portion 3 tail ends is the 3rd diameter d 3, and satisfy this first diameter d 1〉this second diameter d 2〉relation of the 3rd diameter d 3, allow this bar portion 3 have micro-tapering profile, and the length of this second thread section 32 equal these bar portion 3 length half.Certainly, in other actual manufacturing, the length of this second thread section 32 also can be designed to half greater than 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 paste first outside of belly 312 on the pressure side be butted on this box thread 202.Wherein, the structure of this first thread section 31 is to be equal to described thread section 111 (see figure 1)s in the background technique, is to be general thread forms known on the market.
This second thread section 32 has one back on this head 2 and pastes the second dorsal part outside of belly 321 be butted on this box thread 202, and one is intended for this head 2 and pastes second outside of belly 322 on the pressure side that is butted on this box thread 202.Wherein, these 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, by shown in Figure 4, being positioned at the imaginary line top amplifies for the part of this second thread section 32, be positioned at the imaginary line below and amplify for the part of this first thread section 31, by can clearly recognizing among Fig. 4, 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 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 second dorsal part outside of belly 321 can fit tightly with this box thread 202, this feature is different with the state of these thread section 111 (see figure 2)s when being packed in these box thread 402 (see figure 2)s in the background technique.
On assembly is used, be earlier 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 and this screw 201 aligned with each other, again this perforation 101 is passed by this bar portion 3, and utilize inner hexagon spanner to operate this head 2 rotations, to carry out the packing action at leisure, and at the beginning during the application of force, because this first thread section 31 touches this box thread 202 earlier, it is because size cooperates the relation that has tolerance to exist, so, comparatively laborsaving on the application of force, and be rotated gradually when this bar portion 3 and move down to when allowing this second thread section 32 touch this box thread 202, since this second dorsal part outside of belly 321 with this second on the pressure side the outside of belly 322 all be to be close to be butted on this box thread 202 both sides, so, on the application of force, be to execute big strength, but thus, after complete packing, can reduce the generation of back clearance effectively, and then promote locking with anti-loose on effect.
In addition, because both are respectively that mode with the non co axial line designs for this head 2 and this bar portion 3, that is the eccentric meaning, as shown in Figure 5, so must have an offset X 1 between this head 2 and this bar portion 3 its axle center, and compared to background technique, because these head 10 (see figure 1)s and this bar portion 11 (see figure 1)s are coaxial lines so can not have this offset X 1.So, when the user utilizes inner hexagon spanner to rotate this head 2 of the present utility model, 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 utility model is because many this offset X 1, so increased the arm of force, so, be can be more laborsaving and be beneficial to packing at rotation urging.
Consult Fig. 3 again, because this head 2 is to be eccentric in this bar portion 3, so after the packing locking, these head 2 bottom sides are to contact with this first workpiece 100 with asymmetrical surface of contact, as shown in Figure 3 a large contact surface S1 and a little surface of contact S2, thus, because the area of this large contact surface S1 is big, its frictional resistance that produces also can be bigger, so can allow the utility model after packing, more difficultly influenced by external force and produce the phenomenon that gets loose.
Consult Fig. 6, second preferred embodiment for the utility model screw structural, 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 that is designed for for the operation of open-end wrench (not shown).
Consult Fig. 7, be the 3rd preferred embodiment of the utility model screw structural, 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 the utility model screw structural, 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 on the application of force, to promote packing and anti-loose effect.
Consult Fig. 9 and Figure 10, the 5th preferred embodiment for the utility model screw structural, 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 on the application of force, to promote packing and anti-loose effect.
Consult Figure 11 and Figure 12, the 6th preferred embodiment for the utility model screw structural, 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 that is designed for for the operation of double off-set spanners (not shown), comparatively laborsaving on 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 on the application of force, two characteristics like this all can be in order to promote packing and anti-loose effect.
In sum, the utility model screw structural has following advantage and effect:
One, both are off-centre but not the design of coaxial line by this head 2 and this bar portion 3, allow the user when rotating, and the bigger arm of force can be arranged, and thus, rotate that go up can be comparatively laborsaving, so promote locking and anti-loose on effect.
Two, this second dorsal part outside of belly 321 by this second thread section 32 can paste the design that is butted on this box thread 202, and after packing, the utility model can reduce back clearance effectively 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 paste the design that is butted on this box thread 202, after packing, can reduce back clearance effectively 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 is the axle center with a first axle and extends along this first axle;
This bar portion connects and takes shape in this head bottom side and be axle center and along this second axis extension with one with this first axle second axis separately.
2. screw structural as claimed in claim 1, it is characterized in that: this head has a spanner groove that down is 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 off-centre.
4. as claim 1 each described screw structural to the claim 3, it is characterized in that: this screw structural is fit to screw lock in a screw with a box thread, this bar portion comprises one around first thread section of this second axis, reach one around this second axis and 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 first outside of belly on the pressure side that this head and subsides are butted on this box thread, this second thread section has one and is butted on the second dorsal part outside of belly of this box thread back on this head and subsides, and one is intended for second outside of belly on the pressure side that this head and subsides are butted on 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 slightly is 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, it is characterized in that: the cross-sectional shape of this head is petal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102202601U TWM454468U (en) | 2013-02-06 | 2013-02-06 | Screw structure |
| TW102202601 | 2013-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146530U true CN203146530U (en) | 2013-08-21 |
Family
ID=48974056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320122693 Expired - Fee Related CN203146530U (en) | 2013-02-06 | 2013-03-18 | Screw structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203146530U (en) |
| TW (1) | TWM454468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967908A (en) * | 2013-02-06 | 2014-08-06 | 陈顺宝 | Screw structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013108650A1 (en) * | 2013-08-09 | 2015-02-12 | Wittenstein Ag | Mounting system with eccentric |
-
2013
- 2013-02-06 TW TW102202601U patent/TWM454468U/en not_active IP Right Cessation
- 2013-03-18 CN CN 201320122693 patent/CN203146530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967908A (en) * | 2013-02-06 | 2014-08-06 | 陈顺宝 | Screw structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM454468U (en) | 2013-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204839713U (en) | Medical miniature definite torque screwdriver | |
| US20150273670A1 (en) | Mounting structure for a hand tool | |
| CN203146530U (en) | Screw structure | |
| CN103967908A (en) | Screw structure | |
| CN104482023B (en) | Available for the screw rod of macroseism environment or mining machinery, expansion rod, check bolt | |
| WO2008105045A1 (en) | Nut | |
| TW201620683A (en) | T-shaped extension bar | |
| US9162346B2 (en) | Multiple size socket | |
| TWM500657U (en) | Sleeve structure with multiple dimensions | |
| CN204704234U (en) | A kind of Drop-proof rotation inhibiting rivet | |
| CN204893779U (en) | Two -way ratchet spanner | |
| CN204610522U (en) | A kind of fluting self-locking nut | |
| CN204371901U (en) | The screw rod of anti-macroseism, expansion rod, chek bolt | |
| CN203902651U (en) | Pull rod spherical shell | |
| TWM502545U (en) | Ratchet connector structure | |
| JP3128498U (en) | Ball point wrench | |
| CN204437026U (en) | Screw assemblies pads in side | |
| CN202301398U (en) | Clamping gasket of steering tubular column | |
| TWI524023B (en) | Tube clamp limit structure | |
| CN204041682U (en) | A kind of captive screw blind rivet | |
| CN204545472U (en) | Double-blade boring cutter groove syndeton | |
| CN203161099U (en) | Equilateral fillet triangular drill rod | |
| CN209547251U (en) | A kind of idler wheel connection component | |
| CN203214533U (en) | Half-thread bolt | |
| CN203214534U (en) | Half-thread hexagonal bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |