CN110345144A - A kind of segmented thread backing-up screw - Google Patents
A kind of segmented thread backing-up screw Download PDFInfo
- Publication number
- CN110345144A CN110345144A CN201910702397.1A CN201910702397A CN110345144A CN 110345144 A CN110345144 A CN 110345144A CN 201910702397 A CN201910702397 A CN 201910702397A CN 110345144 A CN110345144 A CN 110345144A
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- flank
- crumb loading
- groove
- 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
- 238000010079 rubber tapping Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000010000 carbonizing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 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
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
-
- 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
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Abstract
The invention discloses a kind of segmented thread backing-up screws, including screw head, screw rod and self tapping cone, the screw head bottom is provided with screw rod, the screw rod bottom end is provided with self tapping cone, being extended on the screw rod lower part and self tapping cone has the first flank, the bottom symmetrical of the self tapping cone is provided with crumb loading groove, crump guiding hole is provided between the crumb loading groove, crumb loading groove is connected by crump guiding hole, several limit bullet blocks are provided with above first flank, the second flank is provided with above the limit bullet block, several anti-skidding convex balls are provided between the screw thread of second flank, the screw head top, which is provided with, screws groove.The present invention can make screw carry out cleaning collection to the clast of generation during piercing bottom outlet, prevent screw thread stuck, while limited block can also be cooperated to carry out limit to screw rod by segmented thread and locked, and prevent thread looseness, be connected and fixed stabilization.
Description
[technical field]
The present invention relates to the technical field of hardware standard component, especially a kind of technical field of segmented thread backing-up screw.
[background technique]
Tapping screw or fast tooth screw, are widely used in harbour, electric power, steel, shipbuilding, petrochemical industry, mine, iron
Road, building, chemical metallurgy, automobile manufacture, plastics machinery, Industry Control, highway, Over-size transport, pipeline additionally arrange, side slope tunnel,
Hoistway administers important industry and the bases such as protection, marine salvage, ocean engineering, airport construction, bridge, Aeronautics and Astronautics, venue
The mechanical equipment of construction project.When self-drilling connection, thread Pilot hole first produced to connected piece, then by tapping screw be screwed by
In the thread Pilot hole of connector, but existing tapping screw is easy due to itself structure existing defects in use
There is screw thread to be blocked by the clast blocking accumulated in hole, self-lock ability is poor, is easy wire inversion and loosens, causes to connect unstable.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, proposes a kind of segmented thread backing-up screw, can make
Screw carries out cleaning collection to the clast of generation during piercing bottom outlet, prevents screw thread stuck, while can also be by dividing
Section is threadedly engaged limited block, and to carry out limit to screw rod locked, prevents thread looseness, is connected and fixed stabilization.
To achieve the above object, the invention proposes a kind of segmented thread backing-up screws, including screw head, screw rod and self tapping cone
Body, the screw head bottom are provided with screw rod, and the screw rod bottom end is provided with self tapping cone, on the screw rod lower part and self tapping cone
Being extended has the first flank, and the bottom symmetrical of the self tapping cone is provided with crumb loading groove, sets between the crumb loading groove
It is equipped with crump guiding hole, crumb loading groove is connected by crump guiding hole, is provided with several limit bullet blocks above first flank, described
The shape for limiting bullet block is the arc-shaped elastic slice being arranged obliquely, is provided with the second flank above the limit bullet block, described
The flight pitch of second flank is 1.5 times of the first flank flight pitch, if being provided between the screw thread of the second flank
Anti-skidding convex ball is done, the screw head top, which is provided with, screws groove.
Preferably, the screw head, screw rod and self tapping cone are an integral structure, after heat treatment is strengthened in case-carbonizing
It is even to be electroplate with wear-resistant coating.
Preferably, the quantity of the anti-skidding convex ball has multiple, the anti-skidding convex ball is evenly distributed on the second flank
Between screw thread, the symmetric position of anti-skidding convex ball is provided with crumb loading ball groove, and the shape of the crumb loading ball groove is hemispherical.
Preferably, the axial line of the screw head, screw rod and self tapping cone is located along the same line.
Preferably, the quantity of the crumb loading groove at least there are two, the crumb loading groove run through vertically be arranged in self tapping
In cone, the depth of the crumb loading groove is 1/5th of self tapping cone corresponding position diameter, the opening of the crumb loading groove
Angle is 30 °, and the cross-sectional shape of the crump guiding hole is spherical shape.
Preferably, the groove that screws is interior hexagonal groove, the limit plays block welding on screw rod, the limit bullet
The quantity of block has multiple, and the limit bullet block is uniformly circumferentially positioned in the same level of screw rod, and the limit bullet block inclines
Rake angle is 45 ° of oblique back side top, is provided with and screw rod welded structure reinforcing prop, institute in the middle part of the rear side of the limit bullet block
The height for stating positive stop spring plate is identical as the thread depth of the first flank, and the width of the positive stop spring plate is the spiral shell of the first flank
Three times of line spacing, the top of the positive stop spring plate is provided with bifurcated pointed cone.
Beneficial effects of the present invention: the present invention is excellent through overtesting by the way that screw head, screw rod and self tapping cone to be combined together
Change, screw can be made to carry out cleaning collection by symmetrically arranged crumb loading groove to the clast of generation during piercing bottom outlet
It into crump guiding hole, prevents the first flank crumb loading stuck, while thread contact face can also be interspersed in by limit bullet block extruding
On, limit is carried out to screw rod and is locked, prevents from being threadedly coupled loosening, cooperates the second flank of different flight pitch can the company of being promoted
Fixed effect is connect, anti-skidding convex ball cooperates crumb loading ball groove, prevents flank revolution abjection, is connected and fixed stabilization.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of segmented thread backing-up screw of the present invention.
In figure: 1- screw head, 2- screw rod, 3- self tapping cone, the first flank of 4-, 5- crumb loading groove, 6- crump guiding hole, 7- limit
Bullet block, the second flank of 8-, the anti-skidding convex ball of 9-, 10- screw groove, 11- crumb loading ball groove, 12- structural strengthening column, 13- bifurcated point
Cone.
[specific embodiment]
Refering to fig. 1, a kind of segmented thread backing-up screw of the present invention, including screw head 1, screw rod 2 and self tapping cone 3, the spiral shell
First 1 bottom is provided with screw rod 2, and 2 bottom end of screw rod is provided with self tapping cone 3, prolongs in 2 lower part of screw rod and self tapping cone 3
It stretches and is provided with the first flank 4, the bottom symmetrical of the self tapping cone 3 is provided with crumb loading groove 5, between the crumb loading groove 5
It is provided with crump guiding hole 6, crumb loading groove 5 is connected by crump guiding hole 6, and several limit bullets are provided with above first flank 4
The shape of block 7, the limit bullet block 7 is the arc-shaped elastic slice being arranged obliquely, is provided with the second spiral shell above the limit bullet block 7
Line face 8, the flight pitch of second flank 8 are 1.5 times of 4 flight pitch of the first flank, the screw thread of the second flank 8
Between be provided with several anti-skidding convex balls 9,1 top of screw head, which is provided with, screws groove 10, the screw head 1, screw rod 2 and self tapping cone
Body 3 is an integral structure, and uniformly-coating has wear-resistant coating, the quantity of the anti-skidding convex ball 9 after heat treatment is strengthened in case-carbonizing
Have multiple, the anti-skidding convex ball 9 is evenly distributed between the screw thread of the second flank 8, and the symmetric position of anti-skidding convex ball 9 is provided with
Crumb loading ball groove 11, the shape of the crumb loading ball groove 11 are hemispherical, the axial line position of the screw head 1, screw rod 2 and self tapping cone 3
In on same straight line, the quantity of the crumb loading groove 5 at least there are two, the crumb loading groove 5 is bored through setting in self tapping vertically
On body 3, the depth of the crumb loading groove 5 is 1/5th of 3 corresponding position diameter of self tapping cone, and the crumb loading groove 5 is opened
Bicker degree is 30 °, and the cross-sectional shape of the crump guiding hole 6 is spherical shape, and the groove 10 that screws is interior hexagonal groove, the limit
Bullet block 7 is welded on screw rod 2, and the quantity of the limit bullet block 7 has multiple, and the limit bullet block 7 is uniformly circumferentially positioned at screw rod 2
Same level on, it is described limit bullet block 7 tilt angle be 45 ° of oblique back side top, it is described limit bullet block 7 rear side in
Portion is provided with and 2 welded structure reinforcing prop 12 of screw rod, the thread depth phase of the height of the positive stop spring plate and the first flank 4
Together, the width of the positive stop spring plate is three times of flight pitch of the first flank 4, and the top of the positive stop spring plate is provided with point
Prong cone 13.
The present invention, by assay optimization, can make screw by being combined together screw head 1, screw rod 2 and self tapping cone 3
Cleaning is carried out by symmetrically arranged crumb loading groove 5 to the clast of generation during piercing bottom outlet to be collected into crump guiding hole 6,
It prevents 4 crumb loading of the first flank stuck, while can also be interspersed on thread contact face by the limit extruding of bullet block 7, to screw rod 2
It is locked to carry out limit, prevents from being threadedly coupled loosening, cooperates the second flank 8 of different flight pitch that can be promoted and be connected and fixed effect
Fruit, anti-skidding convex ball 9 cooperate crumb loading ball groove 11, prevent flank revolution abjection, are connected and fixed stabilization.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of segmented thread backing-up screw, it is characterised in that: including screw head (1), screw rod (2) and self tapping cone (3), the spiral shell
Head (1) bottom is provided with screw rod (2), and screw rod (2) bottom end is provided with self tapping cone (3), screw rod (2) lower part and self tapping
Being extended in cone (3) has the first flank (4), and the bottom symmetrical of the self tapping cone (3) is provided with crumb loading groove (5),
It is provided with crump guiding hole (6) between the crumb loading groove (5), crumb loading groove (5) is connected by crump guiding hole (6), first spiral shell
Several limit bullet blocks (7) are provided with above line face (4), the shape of limit bullet block (7) is the arc-shaped bullet being arranged obliquely
Piece, limit bullet block (7) top are provided with the second flank (8), and the flight pitch of second flank (8) is the first spiral shell
1.5 times of line face (4) flight pitch are provided with several anti-skidding convex balls (9), the screw head between the screw thread of the second flank (8)
(1) top, which is provided with, screws groove (10).
2. a kind of segmented thread backing-up screw as described in claim 1, it is characterised in that: the screw head (1), screw rod (2) and
Self tapping cone (3) is an integral structure, and uniformly-coating has wear-resistant coating after heat treatment is strengthened in case-carbonizing.
3. a kind of segmented thread backing-up screw as described in claim 1, it is characterised in that: the quantity of the anti-skidding convex ball (9)
Have multiple, the anti-skidding convex ball (9) is evenly distributed between the screw thread of the second flank (8), the symmetric position of anti-skidding convex ball (9)
It is provided with crumb loading ball groove (11), the shape of the crumb loading ball groove (11) is hemispherical.
4. a kind of segmented thread backing-up screw as described in claim 1, it is characterised in that: the screw head (1), screw rod (2) and
The axial line of self tapping cone (3) is located along the same line.
5. a kind of segmented thread backing-up screw as described in claim 1, it is characterised in that: the quantity of the crumb loading groove (5)
There are two at least, vertically through being arranged on self tapping cone (3), the depth of the crumb loading groove (5) is the crumb loading groove (5)
/ 5th of self tapping cone (3) corresponding position diameter, the opening angle of the crumb loading groove (5) are 30 °, the crump guiding hole
(6) cross-sectional shape is spherical shape.
6. a kind of segmented thread backing-up screw as described in claim 1, it is characterised in that: described screw groove (10) are interior six
Angle groove, the limit bullet block (7) are welded on screw rod (2), and the quantity of limit bullet block (7) has multiple, the limit bullet
Block (7) is uniformly circumferentially positioned in the same level of screw rod (2), and the tilt angle of limit bullet block (7) is oblique rear side
The rear side middle part of 45 ° of top, limit bullet block (7) is provided with and screw rod (2) welded structure reinforcing prop (12), the limit
The height of elastic slice is identical as the thread depth of the first flank (4), and the width of the positive stop spring plate is the spiral shell of the first flank (4)
Three times of line spacing, the top of the positive stop spring plate are provided with bifurcated pointed cone (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702397.1A CN110345144A (en) | 2019-07-31 | 2019-07-31 | A kind of segmented thread backing-up screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702397.1A CN110345144A (en) | 2019-07-31 | 2019-07-31 | A kind of segmented thread backing-up screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345144A true CN110345144A (en) | 2019-10-18 |
Family
ID=68183561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910702397.1A Pending CN110345144A (en) | 2019-07-31 | 2019-07-31 | A kind of segmented thread backing-up screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345144A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909992A (en) * | 1998-07-02 | 1999-06-08 | Wu; Tsan-Hsing | Self-tapping screw for fastening a metal corrugated board |
| US20040141827A1 (en) * | 2003-01-07 | 2004-07-22 | Altenloh, Brinck & Co., Gmbh & Co. Kg | Self-tapping screw for composite materials |
| CN201170244Y (en) * | 2008-04-03 | 2008-12-24 | 张连墩 | Anti-loose seal screw |
| CN102333966B (en) * | 2009-01-21 | 2015-07-29 | Itw澳大利亚控股有限公司 | Self-drilling screw |
| CN105987059A (en) * | 2015-01-28 | 2016-10-05 | 江苏昊嘉不锈钢标准件有限公司 | Modified anti-loosening bolt |
| CN107314011A (en) * | 2017-08-23 | 2017-11-03 | 山东文捷智能动力有限公司 | A kind of self-locking aluminum plate connection device and method |
| CN207830322U (en) * | 2017-12-27 | 2018-09-07 | 浙江新东方汽车零部件有限公司 | A kind of boss bolt of dedusting |
| CN109780039A (en) * | 2019-03-28 | 2019-05-21 | 海盐光大标准件有限公司 | A kind of high-intensitive connection bolt with locking functions |
-
2019
- 2019-07-31 CN CN201910702397.1A patent/CN110345144A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909992A (en) * | 1998-07-02 | 1999-06-08 | Wu; Tsan-Hsing | Self-tapping screw for fastening a metal corrugated board |
| US20040141827A1 (en) * | 2003-01-07 | 2004-07-22 | Altenloh, Brinck & Co., Gmbh & Co. Kg | Self-tapping screw for composite materials |
| CN201170244Y (en) * | 2008-04-03 | 2008-12-24 | 张连墩 | Anti-loose seal screw |
| CN102333966B (en) * | 2009-01-21 | 2015-07-29 | Itw澳大利亚控股有限公司 | Self-drilling screw |
| CN105987059A (en) * | 2015-01-28 | 2016-10-05 | 江苏昊嘉不锈钢标准件有限公司 | Modified anti-loosening bolt |
| CN107314011A (en) * | 2017-08-23 | 2017-11-03 | 山东文捷智能动力有限公司 | A kind of self-locking aluminum plate connection device and method |
| CN207830322U (en) * | 2017-12-27 | 2018-09-07 | 浙江新东方汽车零部件有限公司 | A kind of boss bolt of dedusting |
| CN109780039A (en) * | 2019-03-28 | 2019-05-21 | 海盐光大标准件有限公司 | A kind of high-intensitive connection bolt with locking functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105443549B (en) | Conical internal thread and threaded post connection structure | |
| CN206682119U (en) | A kind of self-tapping screw | |
| CN110345144A (en) | A kind of segmented thread backing-up screw | |
| CN108756759A (en) | A kind of bottom expanding drill | |
| CN110410408A (en) | A kind of Anti-loose fastener | |
| CN110410403A (en) | A kind of New self-tapping screw | |
| CN209083782U (en) | A kind of stop nut with double locking mechanism | |
| CN105485139A (en) | Bolt with self-locking function | |
| CN207093553U (en) | A kind of locking nut | |
| CN106049886B (en) | A kind of push-and-pull rod heavy duty promotion and downward putting device | |
| CN102278348B (en) | Tapping screw for engineering plastics | |
| CN204610493U (en) | Twoly cut tail tapping screw | |
| CN207315833U (en) | Latch assembly and there is its compressor | |
| CN209144807U (en) | A kind of non-cold working connection steel part with double rotational directions screw thread | |
| CN205806178U (en) | Antifriction nut | |
| CN209925396U (en) | Bearing surface projection welding bolt | |
| US20160290381A1 (en) | Fastener for low density materials | |
| CN208311220U (en) | A kind of coiled hair cross Self Drilling Screws improving degree of being completely embedded | |
| CN109538601A (en) | A kind of segmentation tapping screw of high intensity | |
| CN212838852U (en) | A fastener for ocean detection equipment | |
| CN206478086U (en) | Metric system self tapping backing-up screw | |
| CN201007215Y (en) | Dish shaped drop panel right hand threads anchor rod | |
| CN220151692U (en) | Self-tapping bolt with diamond | |
| CN205136293U (en) | Set screw | |
| CN209818477U (en) | High-strength segmented self-tapping screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |
|
| RJ01 | Rejection of invention patent application after publication |