CN104006050A - Self-tapping screw suitable for soft plastic material connection - Google Patents
Self-tapping screw suitable for soft plastic material connection Download PDFInfo
- Publication number
- CN104006050A CN104006050A CN201410269119.9A CN201410269119A CN104006050A CN 104006050 A CN104006050 A CN 104006050A CN 201410269119 A CN201410269119 A CN 201410269119A CN 104006050 A CN104006050 A CN 104006050A
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- China
- Prior art keywords
- self
- helical pitch
- screw rod
- screw
- thread forming
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 27
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 title claims abstract description 16
- 230000002459 sustained effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 abstract 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The invention discloses a self-tapping screw suitable for soft plastic material connection. First self-tapping threads are arranged on the surface of a screw rod, second self-tapping threads are formed between thread gaps of the first self-tapping threads, a first helical pitch end and a second helical pitch end are formed by the first self-tapping threads and the second self-tapping threads at one end of the screw rod and are located at the same height on the screw rod, arc cutting edges are formed at the end of the first helical pitch end and the second helical pitch end, and the screw pitches between the first self-tapping threads and the second self-tapping threads are identical all the time. The self-tapping screw suitable for soft plastic material connection has the advantages that the thread locking force of dual-thread self-tapping threads and the screwing-in torque of a moving stopping groove act together, and the problems of thread loosening, disengagement and the like are effectively prevented. Furthermore, the self-tapping screw can be repeatedly demounted, mounted and used, and the assembling times of the self-tapping screw for soft plastic materials is improved.
Description
Technical field
The present invention relates to the technical field of self tapping screw, specifically a kind of self tapping screw that soft plastic material connects, particularly its exterior mechanical structure of being applicable to.
Background technique
Traditional self-tapping screw structure, adopting single thread, thread root is the locking of planar end surface form self tapping, easily loosening under external force reciprocating, while being particularly applied in soft plastic material, be not easy to control screw-in moment, while being screwed into the end, feel is still low weight, wayward.Almost identical position rotates repeatedly, and smear metal plastics are easy to destroy screw hole (post) and cause stripped thread, causes locking to be lost efficacy.
Summary of the invention
The object of the present invention is to provide a kind of self tapping screw that soft plastic material connects that is applicable to, it has adopted two screw-threaded coupling forms and has stopped into groove profile of tooth fastening structure, has effectively increased screw-threaded coupling power, controls and screws in moment.Effectively prevent that screw thread is loosening and bolt column is damaged, thereby avoid locking to lose efficacy, overcome the shortcoming and defect existing in prior art.
To achieve these goals, technological scheme of the present invention is: a kind of self tapping screw that is applicable to the connection of soft plastic material, it comprises screw rod, it is characterized in that: described screw surface is provided with the first Thread Forming TF, in the flight pitch of the first Thread Forming TF, form the second Thread Forming TF, the first Thread Forming TF and the second Thread Forming TF form the first helical pitch end and the second helical pitch end in screw rod one end, the first helical pitch end and the second helical pitch end are positioned at the sustained height on screw rod, the end of the first helical pitch end and the second helical pitch end all forms curved edge, the first Thread Forming TF is identical all the time with the pitch between the second Thread Forming TF, the screw rod the other end forms circular spiral shell head, the external diameter of this circle spiral shell head is greater than the external diameter of bottom Thread Forming TF, the upper surface of this circle spiral shell head forms " H " shape or two symmetrical vee gutters, the annular surface place of circular spiral shell head bottom is provided with stopping into teeth groove of annular distribution, the end face of screw rod one end is plane.
The invention discloses a kind of self tapping screw that soft plastic material connects that is applicable to, it adopts two screw thread self tappings, has increased coupling mechanism force; The end face of circular spiral shell head adopts profile of tooth to stop into groove, while contacting with soft plastic material matrix surface, stop into the saw shape tooth on groove and on soft plastic material surface, cutting under the effect of screwing force, enter matrix surface, greatly increase screw and screwed in moment, stop screw excessively to screw in, cause destroying the plastic construction of screw hole (post).This self tapping screw can repeated disassembled and assembled be used, and can not lose efficacy because of stripped thread.Beneficial effect is: the screw-threaded coupling power of two-wire Thread Forming TF with stop the screw-in moment acting in conjunction into groove, the problem such as effectively prevent thread looseness, come off; And can repeated disassembled and assembled use the assembling number of times of self tapping screw while having improved soft plastic material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is stereogram of the present invention.
Embodiment
With reference to the accompanying drawings, the present invention is further described.
The present invention is a kind of self tapping screw that soft plastic material connects that is applicable to, as shown in fig. 1, it mainly comprises screw rod 1, it is different from prior art and is: described screw rod 1 surface is provided with the first Thread Forming TF 2, in the flight pitch of the first Thread Forming TF 2, form the second Thread Forming TF 3, the first Thread Forming TF 2 and the second Thread Forming TF 3 form the first helical pitch end 4 and the second helical pitch end 5 in screw rod 1 one end, the first helical pitch end 4 and the second helical pitch end 5 are positioned at the sustained height on screw rod 1, the end of the first helical pitch end 4 and the second helical pitch end 5 all forms curved edge 6, the first Thread Forming TF 2 is identical all the time with the pitch between the second Thread Forming TF 3, screw rod 1 the other end forms circular spiral shell head 7, the external diameter of this circle spiral shell head 7 is greater than the external diameter of bottom Thread Forming TF, the upper surface of this circle spiral shell head 7 forms " H " shape groove 11 or two symmetrical vee gutters, need the dismounting of special tool ability, prevent that layman from opening voluntarily, the annular surface place of circular spiral shell head 7 bottoms is provided with stopping into teeth groove 8 of annular distribution, the end face of screw rod 1 one end is plane 9.
In the specific implementation, described stopping between the teeth of teeth groove 8 forms subtriangular teeth groove 10.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind is applicable to the self tapping screw that soft plastic material connects, it comprises screw rod (1), it is characterized in that: described screw rod (1) surface is provided with the first Thread Forming TF (2), in the flight pitch of the first Thread Forming TF (2), form the second Thread Forming TF (3), the first Thread Forming TF (2) forms the first helical pitch end (4) and the second helical pitch end (5) with the second Thread Forming TF (3) in screw rod (1) one end, the first helical pitch end (4) and the second helical pitch end (5) are positioned at the sustained height on screw rod (1), the end of the first helical pitch end (4) and the second helical pitch end (5) all forms curved edge (6), the first Thread Forming TF (2) is identical all the time with the pitch between the second Thread Forming TF (3), screw rod (1) the other end forms circular spiral shell head (7), the external diameter of this circle spiral shell head (7) is greater than the external diameter of bottom Thread Forming TF, the upper surface of this circle spiral shell head (7) forms " H " shape groove (11) or two symmetrical vee gutters, the annular surface place of circular spiral shell head (7) bottom is provided with stopping into teeth groove (8) of annular distribution, the end face of screw rod (1) one end is plane (9).
2. a kind of self tapping screw that soft plastic material connects that is applicable to according to claim 1, is characterized in that: described stopping into forming subtriangular teeth groove (10) between the teeth of teeth groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269119.9A CN104006050A (en) | 2014-06-17 | 2014-06-17 | Self-tapping screw suitable for soft plastic material connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269119.9A CN104006050A (en) | 2014-06-17 | 2014-06-17 | Self-tapping screw suitable for soft plastic material connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104006050A true CN104006050A (en) | 2014-08-27 |
Family
ID=51366873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269119.9A Pending CN104006050A (en) | 2014-06-17 | 2014-06-17 | Self-tapping screw suitable for soft plastic material connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006050A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937534A (en) * | 2015-03-02 | 2016-09-14 | 王冠精密工业株式会社 | Self-tapping screw and method of manufacturing the same |
| US12215728B2 (en) | 2023-06-29 | 2025-02-04 | Taiwan Shan Yin International Co., Ltd. | Screw |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479020A (en) * | 2002-06-10 | 2004-03-03 | �Ʒ� | Cutting inserter body for screw |
| US20110076112A1 (en) * | 2009-09-25 | 2011-03-31 | Chi-Tao Huang | Concrete bolt |
| CN202251361U (en) * | 2011-09-20 | 2012-05-30 | 王勇 | non-slip screw |
| CN202542498U (en) * | 2012-04-13 | 2012-11-21 | 桐乡市同润现代农业科技专业合作社 | Auxiliary material conveying device |
| EP2728209A1 (en) * | 2012-11-05 | 2014-05-07 | Harald Göttlich | Thread moulding screw |
| CN204025277U (en) * | 2014-06-17 | 2014-12-17 | 飞雕电器集团有限公司 | A kind of self tapping screw that is applicable to the connection of soft plastic material |
-
2014
- 2014-06-17 CN CN201410269119.9A patent/CN104006050A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479020A (en) * | 2002-06-10 | 2004-03-03 | �Ʒ� | Cutting inserter body for screw |
| US20110076112A1 (en) * | 2009-09-25 | 2011-03-31 | Chi-Tao Huang | Concrete bolt |
| CN202251361U (en) * | 2011-09-20 | 2012-05-30 | 王勇 | non-slip screw |
| CN202542498U (en) * | 2012-04-13 | 2012-11-21 | 桐乡市同润现代农业科技专业合作社 | Auxiliary material conveying device |
| EP2728209A1 (en) * | 2012-11-05 | 2014-05-07 | Harald Göttlich | Thread moulding screw |
| CN204025277U (en) * | 2014-06-17 | 2014-12-17 | 飞雕电器集团有限公司 | A kind of self tapping screw that is applicable to the connection of soft plastic material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937534A (en) * | 2015-03-02 | 2016-09-14 | 王冠精密工业株式会社 | Self-tapping screw and method of manufacturing the same |
| US12215728B2 (en) | 2023-06-29 | 2025-02-04 | Taiwan Shan Yin International Co., Ltd. | Screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140827 |