CN105020229A - Drilling screw strong in replaceability and good in sealing property - Google Patents
Drilling screw strong in replaceability and good in sealing property Download PDFInfo
- Publication number
- CN105020229A CN105020229A CN201510352646.0A CN201510352646A CN105020229A CN 105020229 A CN105020229 A CN 105020229A CN 201510352646 A CN201510352646 A CN 201510352646A CN 105020229 A CN105020229 A CN 105020229A
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- spiral shell
- good
- replaceability
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 title abstract 4
- 238000010079 rubber tapping Methods 0.000 claims description 43
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000004233 talus Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drilling screw strong in replaceability and good in sealing property. The drilling screw comprises a screw rod (1), the head end of the screw rod (1) is connected with a screw head (2), the tail end of the screw rod (1) is provided with a drill tail (3), and the circumferential surface of the screw rod (1) is provided with threads (4) and is further provided with a chip discharging groove (5); the screw head (2) comprises a screw umbrella (6), the screw umbrella (6) is provided with a first-grade hexagonal boss (7), and the first-grade hexagonal boss (7) is provided with a second-grade hexagonal boss (8); the screw umbrella (6) is further provided with a fixed unit (9), the screw rod (1) is further provided with a sealing blade (10), and a sealing gasket (11) is arranged between the seal blade (10) and the screw umbrella (6); and the width W of the sealing blade (10) is 0.9-1.0 time as large as the external diameter D of the sealing gasket (11). The drilling screw has the beneficial effects that the replaceability is good, the sealing performance is good, the reliability is high, and the chip discharging effect is good.
Description
Technical field
The present invention relates to a kind of bolt structure, particularly strong the and good seal performance self-tapping screw of a kind of replaceability.
Background technique
Self-tapping screw be the afterbody of screw in boring tail or fine stern shape, need not secondary process, can directly at a kind of screw arranging boring on material, basic material, tapping, locking.Its advantage has in use significantly saved the engineering time.Be usually used in building and house etc. field.At present, in production and application, self-tapping screw has following shortcoming: 1) in the application, need be holed and tapping by self-tapping screw, and torsion suffered by it is large, and this torsion easily makes the hexagonal boss of spiral shell head damage, thus after causing skidding is difficult to this screw to take out replace; 2) self-tapping screw by spiral shell umbrella directly and fixed block surface contact seal, its sealing effect is not good; 3) in vibration strongly and frequently structure, use self-tapping screw, self-tapping screw can be caused to occur loosening because of long-time judder, thus affect stability and the reliability of this structure; 4) current self-tapping screw, when boring and tapping, claps bits poor effect.
Summary of the invention
The object of the invention is to, provide a kind of replaceability strong and good seal performance self-tapping screw.The present invention has, and replaceability is good, good airproof performance, and reliability is high and clap the effective feature of bits.
Technological scheme of the present invention: the strong and good seal performance self-tapping screw of a kind of replaceability, comprise screw rod, the head end of screw rod is connected with spiral shell head, and the tail end of screw rod is provided with brill tail, and the circumferential surface of screw rod is provided with screw thread, and the circumferential surface of screw rod is also provided with groove; Described spiral shell head comprises spiral shell umbrella, and spiral shell umbrella is provided with one-level hexagonal boss, and one-level hexagonal boss is provided with secondary hexagonal boss; Described spiral shell umbrella is also provided with fixed unit; Described screw rod is also provided with sealing blade, between sealing blade and spiral shell umbrella, is provided with seal washer; The width W of described sealing blade equals the outer diameter D of 0.9 ~ 1 times of seal washer.
Aforesaid replaceability is strong and in good seal performance self-tapping screw, described fixed unit comprises via hole, is provided with set screw in via hole.
Compared with prior art, spiral shell head of the present invention is provided with one-level hexagonal boss and secondary hexagonal boss, in application, occurs skidding if one-level hexagonal boss damages because torsion is excessive, the self-tapping screw that namely will damage by secondary hexagonal boss takes out, then replaces new self-tapping screw and use; The replaceability after damaging is stronger by this structure, self-tapping screw to be occurred.The present invention arranges sealing blade on screw rod, arranges seal washer between sealing blade and spiral shell umbrella; By this structure, when self-tapping screw drilling-tapping to sealing blade position time, sealing blade start boring, when spiral shell umbrella bottom surface and the fixed block surface contact of self-tapping screw, what complete self-tapping screw screws installation action; Because of W=0.9 ~ 1 D, the diameter sealing the hole that blade bores is made to be slightly less than the outer diameter D of seal washer, thus force seal washer to be compressed in the sealing blade hole of boring and the gap in this hole is filled up, so just make self-tapping screw after piercing fixed block, better tightness.The present invention is also provided with fixed unit on spiral shell umbrella, when after self-tapping screw locking, then is locked by the set screw of fixed unit; By this structure, vibrate strongly and frequently structure uses self-tapping screw time, avoid self-tapping screw and cause loosening because long-time judder occurs reverse rotation, thus improve the reliability of self-tapping screw.The present invention is also provided with groove on the circumferential surface of screw rod; By this structure, by the chip that produces when self-tapping screw boring and tapping along outside groove tap hole, it is effective that it claps bits, avoids in hole, to cause boring because of talus accumulation and tapping efficiency is low and affect and hole and the situation of tapping effect simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation that spiral shell head is connected with screw rod.
Being labeled as in accompanying drawing: 1-screw rod, 2-spiral shell head, 3-bores tail, 4-screw thread, 5-groove, 6-spiral shell umbrella, 7-one-level hexagonal boss, 8-secondary hexagonal boss, and 9-fixed unit, 10-seals blade, 11-seal washer, 12-via hole, 13-set screw.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiment.Strong and the good seal performance self-tapping screw of a kind of replaceability, form as shown in Figure 1-2, comprise screw rod 1, the head end of screw rod 1 is connected with spiral shell head 2, and the tail end of screw rod 1 is provided with brill tail 3, and the circumferential surface of screw rod 1 is provided with screw thread 4, and the circumferential surface of screw rod 1 is also provided with groove 5; Described spiral shell head 2 comprises spiral shell umbrella 6, and spiral shell umbrella 6 is provided with one-level hexagonal boss 7, and one-level hexagonal boss 7 is provided with secondary hexagonal boss 8; Described spiral shell umbrella 6 is also provided with fixed unit 9; Described screw rod 1 is also provided with sealing blade 10, between sealing blade 10 and spiral shell umbrella 6, is provided with seal washer 11; The width W of described sealing blade 10 equals the outer diameter D of 0.9 ~ 1 times of seal washer 11.
Aforesaid fixed unit 9 comprises via hole 12, is provided with set screw 13 in via hole 12.
Working principle of the present invention is, the screw screwdriver bit of screw gun is enclosed within the one-level hexagonal boss 7 of self-tapping screw, start screw gun self-tapping screw is screwed, in screwing operations, chip outside groove 5 tap hole, when self-tapping screw drilling-tapping to sealing blade 10 position time, sealing blade 10 start boring, when spiral shell umbrella 6 bottom surface and the fixed block surface contact of self-tapping screw, what complete self-tapping screw screws installation action; After screwing, then set screw 13 is screwed, avoid loosening.If when screwing self-tapping screw, if one-level hexagonal boss 7 because of torsion excessive damaged and occur skidding, replace new self-tapping screw after the self-tapping screw that counterrotating secondary hexagonal boss 8 will damage screws out.
Claims (2)
1. the strong and good seal performance self-tapping screw of a replaceability, it is characterized in that: comprise screw rod (1), the head end of screw rod (1) is connected with spiral shell head (2), the tail end of screw rod (1) is provided with and bores tail (3), the circumferential surface of screw rod (1) is provided with screw thread (4), the circumferential surface of screw rod (1) is also provided with groove (5); Described spiral shell head (2) comprises spiral shell umbrella (6), and spiral shell umbrella (6) is provided with one-level hexagonal boss (7), and one-level hexagonal boss (7) is provided with secondary hexagonal boss (8); Described spiral shell umbrella (6) is also provided with fixed unit (9); Described screw rod (1) is also provided with sealing blade (10), between sealing blade (10) and spiral shell umbrella (6), is provided with seal washer (11); The width W of described sealing blade (10) equals the outer diameter D of 0.9 ~ 1 times of seal washer (11).
2. the strong and good seal performance self-tapping screw of replaceability according to claim 1, is characterized in that: described fixed unit (9) comprises via hole (12), is provided with set screw (13) in via hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352646.0A CN105020229A (en) | 2015-06-24 | 2015-06-24 | Drilling screw strong in replaceability and good in sealing property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352646.0A CN105020229A (en) | 2015-06-24 | 2015-06-24 | Drilling screw strong in replaceability and good in sealing property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105020229A true CN105020229A (en) | 2015-11-04 |
Family
ID=54410443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510352646.0A Pending CN105020229A (en) | 2015-06-24 | 2015-06-24 | Drilling screw strong in replaceability and good in sealing property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020229A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191502015A (en) * | 1915-02-08 | 1915-10-07 | Charles Maciver | Improvements in or relating to Screw Nuts. |
| DE10103175A1 (en) * | 2001-01-23 | 2002-08-01 | Ulrich Neixler | Screw connection for fastening scaffold clamps in position, in carpentry and in car bodywork comprises bolt and nut which has two sections of different size or external shape |
| CN202338546U (en) * | 2011-11-16 | 2012-07-18 | 蒋世昌 | Self-tapping screw |
| CN102619838A (en) * | 2012-03-31 | 2012-08-01 | 杭州华星实业有限公司 | Self-drilling screw |
| CN202468613U (en) * | 2012-03-15 | 2012-10-03 | 余姚市吴兴铜业有限公司 | Improved structure of tap bolt |
| CN203297250U (en) * | 2013-05-03 | 2013-11-20 | 镇江大成新能源有限公司 | Durable hexagonal screw |
| CN203516393U (en) * | 2013-10-30 | 2014-04-02 | 威德车业部件有限公司 | Screw |
| CN203516375U (en) * | 2013-09-27 | 2014-04-02 | 浙江吉利控股集团有限公司 | Self-tapping anti-disengaging bolt |
| CN204878215U (en) * | 2015-06-24 | 2015-12-16 | 贵州省华科实业有限公司 | Canned type that replaceability is good bores tail screw |
-
2015
- 2015-06-24 CN CN201510352646.0A patent/CN105020229A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191502015A (en) * | 1915-02-08 | 1915-10-07 | Charles Maciver | Improvements in or relating to Screw Nuts. |
| DE10103175A1 (en) * | 2001-01-23 | 2002-08-01 | Ulrich Neixler | Screw connection for fastening scaffold clamps in position, in carpentry and in car bodywork comprises bolt and nut which has two sections of different size or external shape |
| CN202338546U (en) * | 2011-11-16 | 2012-07-18 | 蒋世昌 | Self-tapping screw |
| CN202468613U (en) * | 2012-03-15 | 2012-10-03 | 余姚市吴兴铜业有限公司 | Improved structure of tap bolt |
| CN102619838A (en) * | 2012-03-31 | 2012-08-01 | 杭州华星实业有限公司 | Self-drilling screw |
| CN203297250U (en) * | 2013-05-03 | 2013-11-20 | 镇江大成新能源有限公司 | Durable hexagonal screw |
| CN203516375U (en) * | 2013-09-27 | 2014-04-02 | 浙江吉利控股集团有限公司 | Self-tapping anti-disengaging bolt |
| CN203516393U (en) * | 2013-10-30 | 2014-04-02 | 威德车业部件有限公司 | Screw |
| CN204878215U (en) * | 2015-06-24 | 2015-12-16 | 贵州省华科实业有限公司 | Canned type that replaceability is good bores tail screw |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151104 |
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| WD01 | Invention patent application deemed withdrawn after publication |