CN203463451U - Screw head drilling and scrap removing structure - Google Patents
Screw head drilling and scrap removing structure Download PDFInfo
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- CN203463451U CN203463451U CN201320477512.8U CN201320477512U CN203463451U CN 203463451 U CN203463451 U CN 203463451U CN 201320477512 U CN201320477512 U CN 201320477512U CN 203463451 U CN203463451 U CN 203463451U
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- screw terminal
- screw head
- drill lip
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Abstract
The utility model provides a screw head drilling and scrap removing structure which is widely applicable to anti-cracking screws, wood screws and other screws. The screw head drilling and scrap removing structure is characterized in that a screw comprises a screw head and a screw stem, a big-end-up conical body is arranged on the outer peripheral side of the screw head, and a ring with a washer function is arranged at the peripheral edge of the top of the conical body of the screw head in an outwardly extending manner; a plurality of oblique convex blades are arranged on the lower ring surface of the ring at the peripheral edge of the top of the screw head, extension lines of the oblique convex blades are not intersected with the axial center line of the screw head, at least one convex drill lip is arranged on the peripheral wall surface or at the lower edge of the screw head and downwardly extends from the peripheral wall surface or the lower edge of the screw head to a stem body of the screw stem by a set distance, the upper end edges of the convex drill lips start from the peripheral wall surface or the lower edge of the screw head, and the lower edge of each convex drill lip is terminated on the stem body of the screw stem by the set distance. The screw head drilling and scrap removing structure has the advantage that the screw head is provided with the screw head drill lips with excellent reaming, cutting, counterboring and scrap removing functions, so that a smooth screw head sinking and countersinking effect and an anti-cracking function can be realized.
Description
Technical field
The utility model provides a kind of boring debris removal structure that is widely used in the screw terminal of screw for proventing having crack on fibreboard, WOOD SCREWS and the utilization of other screw.
Background technique
Screw establishes because wanting spiral shell that the material of article is different different DESIGNED FEATURE, and relaxed and quick etc. the requirement of so-called feature while entering nothing more than the difference in the requirement on penetration rate, chip removal speed and spiral shell.Also therefore screw miscellaneous designs continuous innovation, to make every effort to the ideal state on screw practical effect.
Yet, screw is after being screwed into article, the detritus that constantly precession produces can outer be arranged around screw hole, also therefore partly easily split the article of material, very easily, because accumulation and the eliminating speed of detritus are more undesirable, and screw at screw terminal, avale in process, the situation of article occurs to crack when screw terminal sinks to, trace it to its cause, be mainly that around detritus and screw terminal external diameter are greater than the screw hole internal diameter that lead screw is bored to screw hole.
Therefore, how to create a kind of can be before screw terminal sinks to and immerses oneself in, screw hole is carried out to stirring hole, cutting reaming, chip removal and smooths action, make the screw terminal of larger external diameter can sink to smoothly smooth immersing oneself in, relaxed smooth and easy, anticracking when effectively reaching screw terminal and sinking to and the effect that effectively prevents screw hole burr emergence are current screw technological innovation problem to be solved.
Model utility content
The utility model provides a kind of boring debris removal structure of screw terminal, can effectively reach screw terminal and sink to relaxed smooth and easy and effect of anti-cracking, and can before screw terminal sinks to screw hole, complete in advance the action of stirring hole, cutting and reaming chip removal, make screw terminal sink to and to immerse oneself in smoothly.Meanwhile, the utility model can also effectively prevent the generation of screw hole burr emergence.
The utility model provides a kind of boring debris removal structure of screw terminal, under the ring of screw terminal top periphery, anchor ring is provided with a plurality of oblique protruding swords, the line stretcher of the plurality of oblique protruding sword does not intersect with the longitudinal center line of screw terminal, in screw terminal peripheral wall surfaces or lower edge, be provided with at least one outstanding drill lip, this outstanding drill lip is extended downward a setpoint distance place on the shaft of lead screw by screw terminal peripheral wall surfaces or lower edge.
Further, wherein this outstanding drill lip is to be the helical drill lip of setting angle of inclination.
Further, wherein this outstanding drill lip is not have a straight line shape drill lip at angle of inclination.
Further, wherein this oblique protruding sword is the protruding sword of oblique arc.
Further, wherein this oblique protruding sword is the protruding sword of oblique straight line.
Further, the arc drill lip that wherein this outstanding drill lip is indent arc.
Further, the arc drill lip that wherein this outstanding drill lip is evagination arc.
Further, wherein this outstanding drill lip is the triangular cutting edge face of bilateral edge chamfering.
The advantage the utlity model has is: in screw terminal peripheral wall surfaces or lower edge, be provided with at least one outstanding drill lip, this drill lip is extended downward a setpoint distance place on the shaft of lead screw by screw terminal peripheral wall surfaces or lower edge, make ora terminalis on this outstanding drill lip start from screw terminal peripheral wall surfaces or lower edge, and outstanding drill lip lower end ends at a setpoint distance place on the shaft of lead screw, enter to form screw terminal and there is excellent stirring hole, the screw terminal drill lip of cutting and reaming chip removal, reach screw terminal and sink to smoothly effect and the anti-cracking function of immersing oneself in, and the generation that effectively prevents screw hole burr emergence.
Accompanying drawing explanation
Fig. 1: embodiment of the present utility model.
Fig. 2: embodiment of the present utility model.
Fig. 3: embodiment of the present utility model.
The B-B sectional view of Fig. 4: Fig. 3.
Fig. 5: embodiment of the present utility model.
The C-C sectional view of Fig. 6: Fig. 5.
Fig. 7: embodiment of the present utility model.
The D-D sectional view of Fig. 8: Fig. 7.
Fig. 9: the smooth lower anchor ring embodiment of screw terminal of the present utility model top ring.
Figure 10: the interior recessed anchor ring embodiment of screw terminal of the present utility model top ring.
Figure 11: embodiment of the present utility model.
Figure 12: embodiment of the present utility model.
Figure 13: embodiment of the present utility model.
Figure 14: embodiment of the present utility model.
Figure 15: embodiment of the present utility model.
Figure 16: embodiment of the present utility model.
Figure 17: embodiment of the present utility model.
Figure 18: embodiment of the present utility model.
Figure 19: embodiment of the present utility model.
Figure 20: embodiment of the present utility model.
In figure:
1 screw terminal;
11 rings;
12 oblique protruding swords;
2 lead screw;
3 outstanding drill lips;
A angle of inclination;
L setpoint distance.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art can better understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
Refer to Fig. 1 and Figure 2 shows that utilization embodiment of the present utility model, to show that its screw terminal has the outstanding drill lip of a setpoint distance on the shaft that the oblique protruding sword of anchor ring and screw terminal peripheral wall surfaces under the periphery ring of top or lower edge extend downward lead screw, be one can be widely used in the screw terminal boring chip discharging structure that screw for proventing having crack on fibreboard, WOOD SCREWS and other screw use.While Fig. 3～Figure 20 shows that the boring debris removal structure of the screw terminal that the utility model provides applies to various tubaeform screw terminal, the different embodiments of conical screw head and cylindricality screw terminal, screw terminal external diameter is up big and down small cone, the pyramidal top of screw terminal periphery is provided with to overhanging the ring that a circle has washer function, under relevant screw terminal top periphery ring, the line stretcher of the oblique protruding sword of anchor ring does not intersect with the longitudinal center line of screw terminal, and the sword line of the plurality of oblique protruding sword is oblique straight line shape sword line or oblique arc shaped sword line, and the drill lip sword line of screw terminal can be straight line shape sword line, imploded arcs wire sword line, the triangular cutting edge line of evagination arc shaped sword line or bilateral edge chamfering, and screw terminal drill lip can be the spiral drill lip with angle of inclination or the non-helical drill lip without angle of inclination, when thering is the spiral drill lip at angle of inclination, the enforcement that can be spiral forward or reverse spiral is used.
As shown in Fig. 1 and Fig. 2, the screw terminal 1 that screw comprises one forging molding and lead screw 2 two-part, wherein the 11 times anchor rings of ring at screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique straight line shape sword line (as shown in Figure 6) or oblique arc shaped sword line (as shown in Figure 4).
In screw terminal 1 peripheral wall surfaces, be provided with at least one outstanding drill lip 3 in addition, this outstanding drill lip 3 is extended downward a setpoint distance L place on the shaft of lead screw 2 by screw terminal peripheral wall surfaces, make ora terminalis on this outstanding drill lip 3 start from screw terminal 1 peripheral wall surfaces, and lower end ends at a setpoint distance L place on the shaft of lead screw 2, and shown in figure, this at least one outstanding drill lip 3 is for being the helical drill lip of setting angle of inclination A, and the sword line of this outstanding drill lip 3 can be straight line shape sword line (as Fig. 1 to Fig. 3 and Fig. 5, Fig. 7, shown in Figure 13 and Figure 16), imploded arcs wire sword line is (as Figure 15, shown in Figure 18), evagination arc shaped sword line is (as Figure 14, shown in Figure 17 and Figure 19) or the triangular cutting edge line (as shown in figure 20) of bilateral edge chamfering, and screw terminal drill lip can be the spiral drill lip (as shown in Figures 1 to 12) with angle of inclination or the non-helical drill lip (as shown in Figure 13 to Figure 20) without angle of inclination.
Routine as shown in Figures 3 and 4,11 times anchor rings of ring of screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique arc shaped sword line, and be stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for thering is the oblique arc shaped drill lip of angle of inclination A.Fig. 5 and Fig. 6 institute example, 11 times anchor rings of ring of screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique straight line shape sword line, and be stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for thering is the oblique straight line shape drill lip of angle of inclination A.
Fig. 7 and Fig. 8 institute example, 11 times anchor rings of ring of screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique straight line shape sword line, and be stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for thering is the oblique straight line shape drill lip of angle of inclination A.
Fig. 9 institute example, 11 times anchor rings of ring of screw terminal 1 top periphery are smooth lower anchor ring.Figure 10 institute example, the lower anchor ring that 11 times anchor rings of ring of screw terminal 1 top periphery are indent.
Figure 11 institute example, 11 times anchor rings of ring of screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique arc shaped sword line, and be stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for thering is the oblique straight line shape drill lip of angle of inclination A.
Figure 12 institute example, 11 times anchor rings of ring of screw terminal 1 top periphery are provided with a plurality of oblique protruding swords 12, the line stretcher of the plurality of oblique protruding sword 12 does not intersect with the longitudinal center line of screw terminal 1, and the sword line of the plurality of oblique protruding sword 12 is oblique straight line shape sword line, and be stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for thering is the oblique arc shaped drill lip of angle of inclination A.
Figure 13 and Figure 16 institute example, this is stretched at outstanding drill lip 3 on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 for not having the non-helical drill lip at angle of inclination.
Figure 14, the 17th figure and the 19th figure institute example, this outstanding drill lip 3 that is stretched on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 is the arc drill lip of evagination arc.
Figure 15 and Figure 18 institute example, this outstanding drill lip 3 that is stretched on the shaft of screw terminal 1 peripheral wall surfaces and lead screw 2 is the arc drill lip of indent arc.
Shown in Figure 20, the lower edge of screw terminal 1 arranges outstanding drill lip 3, and this outstanding drill lip 3 extends downward a setpoint distance L place on the shaft of lead screw 2 from screw terminal 1 lower edge, and the sword face of this outstanding drill lip 3 can be the triangular cutting edge face of bilateral edge chamfering.
By the utility model, use, when screw pierces in article, coping screw head 1 external diameter is greater than the shaft external diameter of lead screw 2, so when screw terminal 1 will sink to screw hole, screw hole produces resistance because outer row's detritus and aperture are less than the factors such as screw terminal 1 external diameter, via the utility model, extend the outstanding drill lip 3 of 2 of screw terminal 1 and lead screw, the stirring hole that can create before screw terminal 1 sinks to, cutting and reaming chip removal action, make screw terminal 1 sink to and to immerse oneself in smoothly easily, and anticracking and the effect of removing detritus when reaching screw terminal simultaneously and sinking to, and sink to simultaneously at screw terminal, utilize oblique protruding sword 12 generations of 11 times anchor rings of ring of screw terminal 1 top periphery effectively prevent the debris removal of screw hole burr emergence and smooth effect.
The above embodiment is only the preferred embodiment for absolutely proving that the utility model is lifted, and protection domain of the present utility model is not limited to this.Being equal to that those skilled in the art do on the utility model basis substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (8)
1. the boring debris removal structure of a screw terminal, it is characterized in that: under the ring of screw terminal top periphery, anchor ring is provided with a plurality of oblique protruding swords, the line stretcher of the plurality of oblique protruding sword does not intersect with the longitudinal center line of screw terminal, in screw terminal peripheral wall surfaces or lower edge, be provided with at least one outstanding drill lip, this outstanding drill lip is extended downward a setpoint distance place on the shaft of lead screw by screw terminal peripheral wall surfaces or lower edge.
2. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: wherein this outstanding drill lip is to be the helical drill lip of setting angle of inclination.
3. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: wherein this outstanding drill lip is not for having the straight line shape drill lip at angle of inclination.
4. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: wherein this oblique protruding sword is the protruding sword of oblique arc.
5. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: wherein this oblique protruding sword is the protruding sword of oblique straight line.
6. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: the arc drill lip that wherein this outstanding drill lip is indent arc.
7. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: the arc drill lip that wherein this outstanding drill lip is evagination arc.
8. the boring debris removal structure of screw terminal according to claim 1, is characterized in that: wherein this outstanding drill lip is the triangular cutting edge face of bilateral edge chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477512.8U CN203463451U (en) | 2013-08-06 | 2013-08-06 | Screw head drilling and scrap removing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477512.8U CN203463451U (en) | 2013-08-06 | 2013-08-06 | Screw head drilling and scrap removing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463451U true CN203463451U (en) | 2014-03-05 |
Family
ID=50175818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477512.8U Expired - Fee Related CN203463451U (en) | 2013-08-06 | 2013-08-06 | Screw head drilling and scrap removing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981015A (en) * | 2019-05-21 | 2020-11-24 | 株式会社托普拉 | External thread component |
-
2013
- 2013-08-06 CN CN201320477512.8U patent/CN203463451U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981015A (en) * | 2019-05-21 | 2020-11-24 | 株式会社托普拉 | External thread component |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |