CN209324827U - A kind of modified self-tapping screw - Google Patents
A kind of modified self-tapping screw Download PDFInfo
- Publication number
- CN209324827U CN209324827U CN201821959248.0U CN201821959248U CN209324827U CN 209324827 U CN209324827 U CN 209324827U CN 201821959248 U CN201821959248 U CN 201821959248U CN 209324827 U CN209324827 U CN 209324827U
- Authority
- CN
- China
- Prior art keywords
- screw
- tapping screw
- tapping
- self
- modified self
- 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
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 78
- 238000007373 indentation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The utility model provides a kind of modified self-tapping screw, belong to technical field of fastening, it includes screw terminal and screw rod, the lower end of screw rod is equipped with tapping screw thread, ring flange is equipped between screw terminal and screw rod, the ratio of self-tapping screw entire length and flange disk diameter is a, 1.3 < a < 1.7.The utility model has the advantages that installation effectiveness is high.
Description
Technical field
The utility model belongs to technical field of fastening, is related to a kind of modified self-tapping screw.
Background technique
Self-tapping screw is a kind of common threaded fastener, since it is voluntarily formed or tapping its matching thread,
Group, which is closed, has high anti-loose ability, and can load and unload, in fields such as machinery, furniture using very extensive.
Self drilling tapping screw is a difference in that common tapping screw, must be by drilling when connecting with common tapping screw
(boring thread Pilot hole) and tapping (including being fastenedly connected) two procedures；And self drilling tapping screw will just be drilled and be attacked in connection
Silk two procedures merge primary complete.
For existing standard self-tapping screw in use, tapping is easy to block, installation effectiveness is relatively low.
Therefore need to design a kind of modified self-tapping screw that installation effectiveness is high.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes that a kind of installation effectiveness is high to be changed
Into type self-tapping screw.
The purpose of this utility model can be realized by the following technical scheme: including screw terminal and screw rod, screw rod
Lower end is equipped with tapping screw thread, and ring flange, self-tapping screw entire length and flange disk diameter are equipped between screw terminal and screw rod
Ratio is a, 1.3 < a < 1.7.
The ratio a is 1.5 as a further improvement of the utility model,.
Recess is formed with hexagonal plum blossom trough, hexagonal downwards at the top of screw terminal as a further improvement of the utility model,
The downward conical indentation of the slot bottom of plum blossom trough.
As a further improvement of the utility model, the thread section of the tapping screw thread is triangular in shape and triangle
Corner angle is β, 25 ° of 35 ° of < β <.
The corner angle β of the thread triangular-section is 30 ° as a further improvement of the utility model,.
The screw pitch of the tapping screw thread is that thread triangular-section bottom edge is wide as a further improvement of the utility model,
B times of degree, 3 < b < 4.
The outer surface electroplating processes of self-tapping screw as a further improvement of the utility model,.
The junction of the ring flange and screw rod is equipped with annular groove as a further improvement of the utility model,.
The junction of the ring flange and screw terminal is equipped with annular convex platform as a further improvement of the utility model,.
The outer of two sides up and down of the ring flange is respectively equipped with fillet as a further improvement of the utility model,.
There are four line-styled card slot, four cards for the outer setting of flight as a further improvement of the utility model,
Slot is arranged in " ten " font.
The screw terminal is detachably equipped with pull ring as a further improvement of the utility model, and pull ring bottom has bullet
Property and be caught in screw terminal, pull ring can drive screw terminal rotate and self-tapping screw is screwed into or is back-outed.
Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect:
1, by the way that ring flange is arranged between screw terminal and screw rod, ring flange can play guiding and positioning action, from
The screw of dynamic screw locking machine captures mechanism and can accurately capture self-tapping screw by ring flange and keep the direction of its screw rod default
Position, specifically, capturing mechanism is cannula structure, by the way that the ratio of self-tapping screw entire length and flange disk diameter to be arranged
It is 1.3 to 1.7, preferably 1.5, self-tapping screw can be accurately inserted in and be remained at vertical state, in order to subsequent self tapping
Screw is screwed into, so that so that self-tapping screw is cooperated with automatic locking screw machine realizes automation the turn of the screw, improves production efficiency.Together
When, ring flange also can increase contact area, improve the reliability of threaded connection, reduce the risk that falls off.
2, setting the apex angle of triangle and triangle for the thread of tapping screw thread is 25 ° to 35 °, preferably 30 °, changes sentence
It talks about, tapping screw thread is high crest structure, can effectively improve its tapping ability, and screw is screwed into more convenient, and installation effectiveness is more
It is high.
3, the screw pitch of tapping screw thread is set as wide 3 times to 4 times of the screw thread sound of baby talk, in other words, tapping screw thread is widely-pitched
Structure can be improved the pulling-out force of self-tapping screw, avoid being broken, and safety is more preferably.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model.
Fig. 2 is the front view of one preferred embodiment of the utility model.
Fig. 3 is the top view of one preferred embodiment of utility model.
In figure, 100, screw terminal；110, hexagonal plum blossom trough；120, annular convex platform；200, screw rod；210, tapping screw thread；
300, ring flange；310, annular groove.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 to Figure 3, this modified self-tapping screw, screw terminal 100 and cylindrical screw rod including arc
200, the lower end of screw rod 200 is equipped with tapping screw thread 210, and ring flange 300, self tapping are equipped between screw terminal 100 and screw rod 200
The ratio of screw entire length and 300 diameter of ring flange is a, and 1.3 < a < 1.7, further preferred a are 1.5.
By the way that ring flange 300 is arranged between screw terminal 100 and screw rod 200, ring flange 300 can play guiding and determine
Position effect, the screw of automatic locking screw machine capture mechanism and can accurately capture self-tapping screw by ring flange 300 and make its screw
Bar 200 towards preset position, specifically, capturing mechanism is cannula structure, by by self-tapping screw entire length and flange
The ratio of 300 diameter of disk is set as 1.3 to 1.7, preferably 1.5, can accurately be inserted in self-tapping screw and remain at vertically
State, in order to being screwed into for subsequent self-tapping screw, so that enabling self-tapping screw to cooperate with automatic locking screw machine realizes that automation is twisted
Screw improves production efficiency.Meanwhile ring flange 300 also can increase contact area, improve the reliability of threaded connection, reduce de-
Fall risk.
In order to guarantee the reach of tapping screw thread 210 and the safety of screw locking machine feed mechanism, the utility model
The end of middle screw rod is in not tip-shape, therefore when the utility model is used, needs to punch in predetermined link position in advance, this
Sufficiently long screw thread is just arranged in sample in finite length, guarantees connection reliability, while effectively avoiding tip damages feed mechanism,
Practicability is more preferable.
Preferably, screw terminal 100, screw rod 200, ring flange 300 are integrally formed, to improve the production effect of self-tapping screw
Rate, manufacturing cost are lower.
Along 100 top of screw terminal, recess is formed with hexagonal plum blossom trough 110 downwards, and the slot bottom of hexagonal plum blossom trough 110 is bored downwards
Shape recess.
By the way that hexagonal plum blossom trough 110 is arranged, the turn of the screw mechanism is set preferably to be caught in screw terminal 100, when avoiding fastening
It slips, while appearance is more preferably.
The thread section of tapping screw thread 210 is triangular in shape and the corner angle of triangle is β, 25 ° of 35 ° of < β <.
It is 25 ° to 35 ° by the apex angle that the thread of tapping screw thread 210 is set as triangle and triangle, preferably 30 °, changes
Sentence is talked about, and tapping screw thread 210 is high crest structure, can effectively improve tapping ability, screw is screwed into more convenient, installation effectiveness
It is higher.
The screw pitch of tapping screw thread 210 is b times of thread triangular-section base width, 3 < b < 4.
The screw pitch of tapping screw thread 210 is set as wide 3 times to 4 times of the screw thread sound of baby talk, preferably 3.5 times, in other words, self tapping spiral shell
Line 210 is widely-pitched structure, can be improved the pulling-out force of self-tapping screw, avoids being broken, safety is more preferably.
The utility model is mainly used for self tapping and fastening on PP material, and the tapping screw thread 210 of the shape and structure is applied to
In PP material, either installation effectiveness and locking effect is preferable, and in application, needing to adapt on the other materials such as nylon
Property adjustment tooth away from the parameters such as thread form angle can be only achieved identical effect.
The outer surface electroplating processes of self-tapping screw, to effectively improve its corrosion resistance and appearance.
The junction of ring flange 300 and screw rod 200 is equipped with annular groove 310, enables ring flange 300 and workpiece surface
It develops completely, ring flange 300 is avoided to bend, the locking effect of self-tapping screw is more preferable.
The junction of ring flange 300 and screw terminal 100 is equipped with annular convex platform 120, to effectively improve the knot of ring flange 300
Structure intensity, damage ring flange 300 or coupling mechanism force are excessive and damage ring flange 300 by pressure when screw locking machine being avoided to capture self-tapping screw, can
It is more preferable by property.
The outer of two sides up and down of ring flange 300 is respectively equipped with fillet, can effectively improve ring flange 300 by the way that fillet is arranged
Guiding role, and its is avoided to damage feed mechanism, safety is more preferable.
There are four line-styled card slot, four card slots are arranged in " ten " font for the outer setting of flight.
After self-tapping screw long-time use, hexagonal plum blossom trough 110 is easily damaged, and reusing driver bit can not may also incite somebody to action
Self-tapping screw is back-outed, and screw dismounting is extremely difficult at this time.The four line-styled card slots arranged by setting " ten " font, worker
The tools such as scissors can be caught in two of them card slot, then the tools such as revolving scissors can very easily back-out screw.
In addition, being broken even if two card slots are twisted, there are two card slot is spare.Alternatively, being directly caught in four by the tool of " ten " font
Card slot is back-outed more labor-saving.The self-tapping screw advantages of simple of the structure, ingenious in design, practicability is good.
Screw back-outs difficulty when there are also another schemes to solve the problems, such as that hexagonal plum blossom trough 110 is damaged, specific as follows:
Screw terminal 100 is detachably equipped with pull ring, and pull ring bottom has elasticity and is caught in screw terminal 100, and pull ring can drive screw terminal
100 rotate and self-tapping screw are screwed into or are back-outed.
If necessary, it is caught in after pull ring bottom being broken into two with one's hands in the corresponding slot of screw terminal, the pull ring made and screw terminal phase
To fixation, then axial rotation pull ring is rotated with band screw terminal, again can be by after being finished to solve the problems, such as that screw is difficult to back-out
Pull ring is disassembled to save installation space, ingenious in design, using flexible.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of modified self-tapping screw, which is characterized in that including screw terminal and screw rod, the lower end of screw rod is equipped with self tapping spiral shell
The thread section of line, tapping screw thread is triangular in shape and the corner angle of triangle is β, 25 ° of 35 ° of < β <, crest height with from
Tapping major diameter ratio is between 0.15-0.2.
2. a kind of modified self-tapping screw according to claim 1, which is characterized in that the thread triangular-section
Corner angle β is 30 °.
3. a kind of modified self-tapping screw according to claim 1, which is characterized in that the screw pitch of the tapping screw thread is spiral shell
A times of line tooth triangular-section base width, 3 < a < 4.
4. a kind of modified self-tapping screw according to claim 1, which is characterized in that the outer surface zinc-nickel electricity of self-tapping screw
Plating.
5. a kind of modified self-tapping screw according to claim 1, which is characterized in that be equipped between screw terminal and screw rod
The ratio of ring flange, self-tapping screw entire length and flange disk diameter is b, 1.3 < b < 1.7.
6. a kind of modified self-tapping screw according to claim 5, which is characterized in that the ratio b is 1.5.
7. a kind of modified self-tapping screw according to claim 6, which is characterized in that the downward concave shape at the top of screw terminal
At having hexagonal plum blossom trough, the downward conical indentation of the slot bottom of hexagonal plum blossom trough.
8. a kind of modified self-tapping screw according to claim 6, which is characterized in that the company of the ring flange and screw rod
It meets place and is equipped with annular groove.
9. a kind of modified self-tapping screw according to claim 6, which is characterized in that the company of the ring flange and screw terminal
It meets place and is equipped with annular convex platform.
10. a kind of modified self-tapping screw according to claim 6, which is characterized in that the two sides up and down of the ring flange
Outer is respectively equipped with fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959248.0U CN209324827U (en) | 2018-11-26 | 2018-11-26 | A kind of modified self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959248.0U CN209324827U (en) | 2018-11-26 | 2018-11-26 | A kind of modified self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324827U true CN209324827U (en) | 2019-08-30 |
Family
ID=67711535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821959248.0U Expired - Fee Related CN209324827U (en) | 2018-11-26 | 2018-11-26 | A kind of modified self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324827U (en) |
-
2018
- 2018-11-26 CN CN201821959248.0U patent/CN209324827U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209324827U (en) | A kind of modified self-tapping screw | |
| CN203227852U (en) | Novel hole saw | |
| CN209006497U (en) | A kind of quick change punch structure | |
| CN209115488U (en) | A kind of screw being easily installed | |
| CN207454481U (en) | A kind of anti-drop bolt component | |
| CN207431345U (en) | Carbon fibre composite process tool | |
| CN207830317U (en) | A kind of anti-fast screw of penetration rate that gets rusty | |
| CN201747733U (en) | Hexagon-headed bolt | |
| CN208910437U (en) | A kind of self-taped type cancellous bone screw | |
| CN203536166U (en) | Positioning nail for oil tank of transformer | |
| CN201351658Y (en) | Peel type blind rivet | |
| CN210153057U (en) | Big flat-head self-tapping screw | |
| CN101745704B (en) | Radial drill device | |
| CN209146102U (en) | A kind of ring bolt | |
| CN208330229U (en) | A kind of sucker rod suspension hook | |
| CN206487419U (en) | A kind of wolfram steel weighted lever | |
| CN201687825U (en) | Self-drilling screw | |
| CN201461693U (en) | Screw | |
| CN204805262U (en) | Improvement self tapping screw structure | |
| CN205478788U (en) | Novel improve self tapping locking screw of structure | |
| CN207508679U (en) | A kind of workbench | |
| CN205036299U (en) | Roof bolting bit | |
| CN203665451U (en) | Threaded insert installation device | |
| CN211231207U (en) | Thin type hexagonal cross washer drill tail screw | |
| CN208565228U (en) | A kind of head has the flat recess tapping screw of cyphelia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |