CN107882837A - A kind of anti-fast screw of penetration rate that gets rusty - Google Patents
A kind of anti-fast screw of penetration rate that gets rusty Download PDFInfo
- Publication number
- CN107882837A CN107882837A CN201711201872.4A CN201711201872A CN107882837A CN 107882837 A CN107882837 A CN 107882837A CN 201711201872 A CN201711201872 A CN 201711201872A CN 107882837 A CN107882837 A CN 107882837A
- Authority
- CN
- China
- Prior art keywords
- screw
- shank
- groove
- cross recess
- penetration rate
- 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
- 230000035515 penetration Effects 0.000 title claims abstract description 16
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 41
- 238000013459 approach Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 description 2
- 235000004224 Typha angustifolia Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of anti-fast screw of penetration rate that gets rusty, including head of screw, platform, cross recess, buffer body, shank of screw, spiral shell point, the cross recess inwall is provided with several fastening strips, the left side of the cross recess is provided with oil groove, the oil groove lower end is provided with oil guide pipe, the oil guide pipe is through buffer body with being connected on the left of shank of screw, inner chamber is provided with the right side of the cross recess, the inner chamber is connected through head of screw with shank of screw inwall bottom, the shank of screw lower end is connected with spiral shell point, and the spiral shell point outer wall is provided with several assistant strips.A kind of anti-fast screw of penetration rate that gets rusty of the present invention, other objects can be pierced with faster speed and can be carried out oily, both screw had been effectively prevented to shift when piercing other objects, also reduce the generation that screw and its metal object connected get rusty, improve crudy, work difficulty reduction is screwed into, is screwed into efficiency raising.
Description
【Technical field】
The present invention relates to fastener areas, particularly a kind of anti-fast screw of penetration rate that gets rusty.
【Background technology】
Screw is by bolt head and screw rod (carrying externally threaded cylinder) a kind of fastener dimerous, for tight
It is solidly connected two mechanical machine parts for carrying through hole.Screw is worked as in daily life in metal plate and machine tooling technical field
In, it is essential, but existing screw, because its design is simple, efficiency is inadequate, it is impossible to more rapidly bores screw
Enter other objects, cause screw easily to be shifted during piercing, influence crudy；In moister environment
In, the metal object of bolt and its connection is easy to get rusty, and causes bolt to unload to get off, causes unnecessary trouble, influence work
Make efficiency, delay the normal operation of plant equipment.
At present, the domestic screw generally used is standard component, as minus screw or plus screw.This screw tightness
It is good, convenient disassembly.When being inserted screws into using aid, in the word or cross recess of aid insertion screw, due to
It is shiny surface in one word or cross recess, aid usually departs from a word or cross recess, improves the difficulty being screwed into, increases
It is screwed into workload.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of anti-fast screw of penetration rate that gets rusty,
Other objects can be pierced with faster speed and can carry out oily, screw had both been effectively prevented and has pierced other things
Shifted during part, also reduce the generation that screw and its metal object connected get rusty, improve crudy, extend spiral shell
The availability of nail, and work difficulty reduction is screwed into, it is screwed into efficiency raising.
To achieve the above object, the present invention proposes a kind of anti-fast screw of penetration rate that gets rusty, including head of screw, flat
Platform, cross recess, buffer body, shank of screw, spiral shell point, described head of screw are provided with platform, and it is recessed to be provided with cross in described platform
Groove, described cross recess inwall are provided with several fastening strips, and the left side of described cross recess is provided with oil groove, described oil groove
Lower end be provided with oil guide pipe, the lower end of described head of screw and the upper end of buffer body connect, the lower end of described buffer body and spiral shell
The upper end connection of nail rod, described oil guide pipe connect through the left side of buffer body and shank of screw, the right side of described cross recess
Provided with inner chamber, described inner chamber is connected through head of screw with the bottom of shank of screw inwall, lower end and the spiral shell point of described shank of screw
Connection, the outer wall of described spiral shell point are provided with several assistant strips.
Preferably, the length summation of two fastening strips on described same axis is less than the width of cross recess, institute
The fastening strip stated is trapezoidal, and one end of described fastening strip is provided with connected unit, and described connected unit is provided with magnet, described magnetic
Iron is rectangle.
Preferably, the left side of described cross recess is provided with groove, described oil groove is located in groove, described oil groove
The notch and the lifting piece positioned at notch upper end held including groove body, with groove, are provided with screens around described notch
Part, described card-bit part are located on head of screw in annular, and the lower end of described groove body is provided with screen pack, on described screen pack
Provided with several filter openings, the lower section of described screen pack is provided with oil guiding net, and described oil guiding net is provided with several oil guiding holes, institute
The groove body and groove match stated.
Preferably, described oil guide pipe includes vertical portion and twill portion, upper end and the screen pack of described vertical portion connect
Connect, the lower end of described vertical portion is connected with the upper end in twill portion, and the lower end in described twill portion and the left end of shank of screw connect.
Preferably, the outer wall of described shank of screw is provided with the screw thread of spiral surrounding, the lower end in described twill portion and spiral shell
The upper end connection of line, the lower section of described screw thread are provided with the first chip area, and the lower end of described screw thread and the assistant strip of upper end connect
Connect.
Preferably, described inner chamber is taper, the bottom of described inner chamber is provided with yi word pattern groove.
Preferably, described assistant strip is triangle, the lower end of described assistant strip is provided with wedge angle, and described wedge angle is
Acute angle straight down, the second debris removal groove is provided between described two neighboring wedge angle.
Beneficial effects of the present invention：The present invention sets magnet by setting fastening strip in cross recess on fastening strip,
Work difficulty when being screwed into is reduced, improves and is screwed into efficiency；By setting oil groove and oil guide pipe, can carry out it is oily,
The generation that screw and its metal object connected get rusty is also reduced, crudy is improved, extends effective use of screw
Rate；The chip area of setting is beneficial to the discharge of chip, reduces screw-in dynamics；The assistant strip of setting improves the speed pierced, sets
Inner chamber, reduce the raw material of processing, add the approach for being screwed into or dismantling.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of structural representation of the anti-fast screw of penetration rate that gets rusty of the present invention；
Fig. 2 is the structural representation of cross recess of the present invention；
Fig. 3 is the structural representation of oil groove of the present invention.
In figure：1- head of screws, 2- platforms, 3- cross recess, 4- buffer bodies, 5- shanks of screw, 6- spiral shells point, 7- oil grooves, 8- are led
Oil pipe, 31- fastening strips, 32- inner chambers, 33- grooves, 51- screw threads, the chip areas of 52- first, 61- assistant strips, 71- grooves body, 72- grooves
Mouth, 73- lifting pieces, 81- vertical portions, 82- twills portion, 311- connected units, 312- magnet, 321- yi word patterns groove, 611- wedge angles,
The chip areas of 612- second, 721- card-bit parts, 711- screen packs, 712- filter openings, 713- oil guiding nets, 714- oil guiding holes.
【Embodiment】
To make the object, technical solutions and advantages of the present invention of greater clarity, below by drawings and Examples, to this
Invention is further elaborated.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention,
The scope being not intended to limit the invention.In addition, in the following description, the description to known features and technology is eliminated, to keep away
Exempt from unnecessarily to obscure idea of the invention.
Refering to Fig. 1, Fig. 2 and Fig. 3, a kind of anti-fast screw of penetration rate that gets rusty of the present invention, including head of screw 1, platform 2,
Cross recess 3, buffer body 4, shank of screw 5, spiral shell point 6, described head of screw 1 are provided with platform 2, ten are provided with described platform 2
Word groove 3, the described inwall of cross recess 3 are provided with several fastening strips 31, and the left side of described cross recess 3 is provided with oil groove 7,
The lower end of described oil groove 3 is provided with oil guide pipe 8, described head of screw) lower end be connected with the upper end of buffer body 4, it is described slow
The lower end for rushing body 4 is connected with the upper end of shank of screw 5, and described oil guide pipe 8 is connected through buffer body 4 with the left side of shank of screw 5, institute
The right side for the cross recess 3 stated is provided with inner chamber 32, and described inner chamber 32 is connected through head of screw 1 with the bottom of the inwall of shank of screw 5,
The lower end of described shank of screw 5 is connected with spiral shell point 6, and the outer wall of described spiral shell point 6 is provided with several assistant strips 61；Described is same
The length summation of two fastening strips 31 on axis is less than the width of cross recess 3, and described fastening strip 31 is trapezoidal, described
One end of fastening strip 31 is provided with connected unit 311, and described connected unit 311 is provided with magnet 312, and described magnet 312 is rectangle；
The left side of described cross recess 3 is provided with groove 33, and described oil groove 7 is located in groove 33, and described oil groove 7 includes groove body
71st, the notch 72 positioned at the upper end of groove body 71 and the lifting piece 73 positioned at the upper end of notch 72, it is provided with around described notch 72
Card-bit part 721, described card-bit part 721 are located on head of screw 1 in annular, and the lower end of described groove body 71 is provided with screen pack
711, described screen pack 711 is provided with several filter openings 712, and the lower section of described screen pack 711 is provided with oil guiding net 713, institute
The oil guiding net 713 stated is provided with several oil guiding holes 714, and described groove body 71 matches with groove 33；Described oil guide pipe 8 wraps
Vertical portion 81 and twill portion 82 are included, the upper end of described vertical portion 81 is connected with screen pack 711, the lower end of described vertical portion 81
It is connected with the upper end in twill portion 82, the lower end in described twill portion 82 is connected with the left end of shank of screw 5；Described shank of screw 5
Outer wall is provided with the screw thread 51 of spiral surrounding, and the lower end in described twill portion 82 is connected with the upper end of screw thread 51, described screw thread 51
Lower section be provided with the first chip area 52, the lower end of described screw thread 51 and the assistant strip 61 of upper end connect；Described inner chamber 32 is
Taper, the bottom of described inner chamber 32 are provided with yi word pattern groove 321；Described assistant strip 61 is triangle, described assistant strip 61
Lower end be provided with wedge angle 611, described wedge angle 611 is acute angle straight down, is provided between described two neighboring wedge angle 611
Second chip area 612.
By using above-mentioned technical proposal, the present invention in cross recess 3 by setting fastening strip 31, in fastening strip 31
Magnet 312 is set in connected unit 311, and when the instruments such as screwdriver, spanner insert cross recess 3, the fastening strips 31 of both sides is by work
Tool clamps, and magnet 312 firmly holds instrument, avoids occurring the situation that instrument departs from and skidded in rundown process, reduces stubborn
The work difficulty entered, improves and is screwed into efficiency；By setting oil groove 7 and oil guide pipe 8, the lubricating oil in oil groove 7 first passes through filtering
Net 711 is filtered, and then slowly enters oil guide pipe 8 by the oil guiding hole 714 on oil guiding net 713, and spiral shell is flow to along oil guide pipe 8
It is lubricated on the screw thread 51 of nail rod 5, lifts lifting piece 73, the upper end that oil groove 3 is placed in cross recess 3 is entered to cross recess 3
Row lubrication, slowly long-term can be lubricated to screw thread 51 and cross recess 3, reduce screw and the metal object of its connection
The generation got rusty, improves crudy, extends the availability of screw；The buffer body 4 of setting, reduce head of screw 1 with
The risk that shank of screw 5 is broken, enhancing strength, as the connector of Oil Guide, the Oil Guide approach of extension oil guide pipe 8 so that oil guide pipe 8
Oil Guide work can be smoothly carried out, prevents that the too short connection of Oil Guide approach is not smooth, increases processing cost；Set in the lower section of screw thread 51
Put the first chip area 52 and the second chip area 612 is set between two wedge angles 611, be advantageous to the discharge of chip, reduce and screw in
Dynamics；The assistant strip 61 and wedge angle 611 of setting improve the speed pierced；Inner chamber is set in head of screw 1 and shank of screw 5, reduced
The raw material of processing, when cross recess damages or during without cross instrument, intracavitary in the insertion of flat recess instrument can be utilized
The flat recess action that is screwed into or dismantled, add the approach for being screwed into or dismantling, extend the service life of screw.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (7)
- A kind of 1. anti-fast screw of penetration rate that gets rusty, it is characterised in that：Including head of screw (1), platform (2), cross recess (3), buffer body (4), shank of screw (5), spiral shell are sharp (6), and described head of screw (1) is provided with platform (2), and described platform (2) is interior Provided with cross recess (3), described cross recess (3) inwall is provided with several fastening strips (31), described cross recess (3) Left side is provided with oil groove (7), and the lower end of described oil groove (3) is provided with oil guide pipe (8), the lower end of described head of screw (1) and buffering The upper end connection of body (4), the lower end of described buffer body (4) are connected with the upper end of shank of screw (5), and described oil guide pipe (8) is worn The left side that buffer body (4) is crossed with shank of screw (5) is connected, and the right side of described cross recess (3) is provided with inner chamber (32), and described is interior Chamber (32) is connected through head of screw (1) with the bottom of shank of screw (5) inwall, and lower end and the spiral shell sharp (6) of described shank of screw (5) connect Connect, the outer wall of described spiral shell point (6) is provided with several assistant strips (61).
- A kind of 2. anti-fast screw of penetration rate that gets rusty as claimed in claim 1, it is characterised in that：On described same axis Two fastening strips (31) length summation be less than cross recess (3) width, described fastening strip (31) is trapezoidal, described One end of fastening strip (31) is provided with connected unit (311), and described connected unit (311) is provided with magnet (312), described magnet (312) it is rectangle.
- 3. a kind of anti-fast screw of penetration rate that gets rusty as claimed in claim 1, the left side of described cross recess (3) is provided with Groove (33), described oil groove (7) are located in groove (33), and described oil groove (7) includes groove body (71), on groove body (71) The notch (72) at end and the lifting piece (73) positioned at notch (72) upper end, described notch are provided with card-bit part around (72) (721), described card-bit part (721) is located on head of screw (1) in annular, and the lower end of described groove body (71) is provided with screen pack (711), described screen pack (711) is provided with several filter openings (712), and the lower section of described screen pack (711) is provided with Oil Guide Net (713), described oil guiding net (713) are provided with several oil guiding holes (714), described groove body (71) and groove (33) phase Match somebody with somebody.
- 4. a kind of anti-fast screw of penetration rate that gets rusty as described in claim 1 or 3, described oil guide pipe (8) includes vertical Portion (81) and twill portion (82), the upper end of described vertical portion (81) are connected with screen pack (711), described vertical portion (81) Lower end is connected with the upper end of twill portion (82), and the lower end in described twill portion (82) is connected with the left end of shank of screw (5).
- 5. a kind of anti-fast screw of penetration rate that gets rusty as described in claim 1 or 4, the outer wall of described shank of screw (5) are set There is the screw thread (51) of spiral surrounding, the lower end in described twill portion (82) is connected with the upper end of screw thread (51), described screw thread (51) lower section is provided with the first chip area (52), and the lower end of described screw thread (51) and the assistant strip (61) of upper end connect.
- 6. a kind of anti-fast screw of penetration rate that gets rusty as claimed in claim 1, described inner chamber (32) are taper, described The bottom of inner chamber (32) is provided with yi word pattern groove (321).
- 7. a kind of anti-fast screw of penetration rate that gets rusty as claimed in claim 1, described assistant strip (61) is triangle, institute The lower end for the assistant strip (61) stated is provided with wedge angle (611), and described wedge angle (611) is acute angle straight down, and described is adjacent The second chip area (612) is provided between two wedge angles (611).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201872.4A CN107882837A (en) | 2017-11-27 | 2017-11-27 | A kind of anti-fast screw of penetration rate that gets rusty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201872.4A CN107882837A (en) | 2017-11-27 | 2017-11-27 | A kind of anti-fast screw of penetration rate that gets rusty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882837A true CN107882837A (en) | 2018-04-06 |
Family
ID=61775381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201872.4A Pending CN107882837A (en) | 2017-11-27 | 2017-11-27 | A kind of anti-fast screw of penetration rate that gets rusty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307235A (en) * | 2019-07-05 | 2019-10-08 | 谭士龙 | A kind of hexagon socket head cap screw fastener |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174944A (en) * | 1996-08-15 | 1998-03-04 | 阿道夫维尔特股份有限公司 | Screw with drill |
| CN201309197Y (en) * | 2008-10-27 | 2009-09-16 | 兴化市恺鑫合金工具有限公司 | Multi-edge screw driller |
| CN201884412U (en) * | 2010-11-30 | 2011-06-29 | 躍诚有限公司 | Screw |
| CN102966652A (en) * | 2011-08-30 | 2013-03-13 | 邳州市大昌机械制造有限公司 | Chip groove-improved bolt |
| CN203570795U (en) * | 2013-11-11 | 2014-04-30 | 贵州航晟机械制造有限责任公司 | Screw capable of rotating in narrow space |
| CN205154851U (en) * | 2015-09-22 | 2016-04-13 | 廖勇 | Novel screw |
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN205780162U (en) * | 2016-06-01 | 2016-12-07 | 广州市中标螺丝制造有限公司 | A kind of countersunk head rapid tooth screw |
| CN106224347A (en) * | 2016-08-27 | 2016-12-14 | 常州市耀华仪器有限公司 | Mapping equipment Elastic Bolts |
| CN106499707A (en) * | 2015-09-06 | 2017-03-15 | 江苏东奇标准件有限公司 | A kind of screw of improved structure |
| CN206608425U (en) * | 2017-04-01 | 2017-11-03 | 上海群力紧固件制造有限公司 | A kind of bolt |
| CN207830317U (en) * | 2017-11-27 | 2018-09-07 | 海盐县奕涵标准件厂 | A kind of anti-fast screw of penetration rate that gets rusty |
-
2017
- 2017-11-27 CN CN201711201872.4A patent/CN107882837A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174944A (en) * | 1996-08-15 | 1998-03-04 | 阿道夫维尔特股份有限公司 | Screw with drill |
| CN201309197Y (en) * | 2008-10-27 | 2009-09-16 | 兴化市恺鑫合金工具有限公司 | Multi-edge screw driller |
| CN201884412U (en) * | 2010-11-30 | 2011-06-29 | 躍诚有限公司 | Screw |
| CN102966652A (en) * | 2011-08-30 | 2013-03-13 | 邳州市大昌机械制造有限公司 | Chip groove-improved bolt |
| CN203570795U (en) * | 2013-11-11 | 2014-04-30 | 贵州航晟机械制造有限责任公司 | Screw capable of rotating in narrow space |
| CN106499707A (en) * | 2015-09-06 | 2017-03-15 | 江苏东奇标准件有限公司 | A kind of screw of improved structure |
| CN205154851U (en) * | 2015-09-22 | 2016-04-13 | 廖勇 | Novel screw |
| CN205780162U (en) * | 2016-06-01 | 2016-12-07 | 广州市中标螺丝制造有限公司 | A kind of countersunk head rapid tooth screw |
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN106224347A (en) * | 2016-08-27 | 2016-12-14 | 常州市耀华仪器有限公司 | Mapping equipment Elastic Bolts |
| CN206608425U (en) * | 2017-04-01 | 2017-11-03 | 上海群力紧固件制造有限公司 | A kind of bolt |
| CN207830317U (en) * | 2017-11-27 | 2018-09-07 | 海盐县奕涵标准件厂 | A kind of anti-fast screw of penetration rate that gets rusty |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307235A (en) * | 2019-07-05 | 2019-10-08 | 谭士龙 | A kind of hexagon socket head cap screw fastener |
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