CN101985953A

CN101985953A - Screw

Info

Publication number: CN101985953A
Application number: CN 201010543313
Authority: CN
Inventors: 苏国材
Original assignee: Qingda Technology Co Ltd
Current assignee: Qingda Technology Co Ltd; Taiwan Shan Yin International Co Ltd
Priority date: 2010-11-03
Filing date: 2010-11-03
Publication date: 2011-03-16
Anticipated expiration: 2030-11-03
Also published as: TWM422611U; CN101985953B

Abstract

The invention relates to a screw which comprises a rod body, a screw head, a drilling lock part and a plurality of screw teeth, wherein the screw head is arranged on one end of the rod body, the drilling lock part is arranged on the other end of the rod body, and the screw teeth are spirally and annularly arranged on the rod body. The screw is mainly characterized in that two oblique cutting faces are formed on the drilling lock part; a cutting edge is formed at the joint of the two cutting faces; and the screw teeth, which are annularly arranged on the rod body, are extended to the cutting edge and are connected with one end edge of the cutting edge. When locking, the cuttings can smoothly enter cutting discharge channels among the screw teeth via the two oblique cutting faces so as to be discharged rapidly, so that a great deal of cuttings can not accumulate, thereby effectively reducing the locking torsion and increasing the locking speed; and meanwhile, after locking, the screw can sink into a locking object, thereby being beneficial to the subsequent splicing construction of such locking objects.

Description

Screw

Technical field

The present invention is relevant for a kind of lock firmware, a kind of screw of finger particularly.

Background technique

Consult Fig. 1, known screw 1 includes a body of rod 11, and is located at the brill lock section 13 that the spiral shell head 12, of these body of rod 11 1 ends is located at these body of rod 11 the other ends, and plural whorl is located at the thread 14 on this body of rod 11; Wherein, this brill lock section 13 is cone-shaped, so this screw 1 carries out when sealed at sealed object 2, bores lock section 13 by this and bores lock, and guide this thread 14 and continue to revolve lock and enter this sealed object 2, and then reach the effect of sealed location.

Yet the actual back of using finds that known screw 1 is in sealed this sealed object 2 (as composite sheet) process, though locking bit can be bored at this sealed object 2 in this brill lock section 13; But in the sealed process, be cone-shaped design because of being subject to this brill lock section 13, so this screw 1 only can utilize this cone-shaped brill lock section 13 by force pushing tow enter in this sealed object 2, the smear metal that is produced during the brill lock not only can't be cut off effectively, only be subjected to these brill lock section 13 pushing tows and push outside, cause this smear metal successfully to be discharged from, make when this screw 1 is follow-up to be revolved lock again and enter this sealed object 2, being vulnerable to this smear metal hinders, more increase the sealed resistance of this screw 1, can't sealedly smoothly enter in this sealed object 2 in this screw 1 sealed process simultaneously, influence the carrying out of construction operation.

Moreover, in view of being position shown in Fig. 2 imaginary line, this screw 1 carries out when sealed, sealed back is towards co-relation because of spiral shell head 12 positions of this screw 1, cause these spiral shell head 12 places very easily to produce ponding and get rusty, therefore for avoiding the generation of this situation, the spy adopts inclination mode to lock in this sealed object 2 on this screw 1, because the situation that this screw 1 easily has smear metal to discharge smoothly, have after causing this spiral shell head 12 sealed and protrude from this sealed object 2 outer situations and produce, it is follow-up and connect and be mutual fit-state to influence this sealed object 2, so real the remaining of the structure of this screw 1 design improved, to solve the disappearance in the aforementioned use.

Summary of the invention

Therefore, the invention provides a kind of screw, have the chip removal of enhancing function, reduce the generation of sealed torsion, and then promote the effect of sealed speed, and this screw is deeply buried in the sealed object after sealed.

For reaching above-mentioned purpose, the present invention adopts following technological scheme:

A kind of screw, it includes a body of rod, and one is located at the spiral shell head of this body of rod one end, and one is located at the brill lock section of this body of rod the other end, and plural whorl is located at the thread on this body of rod; It mainly is: be formed with two cutting face that tilt on this brill lock section, and this connecting part, two cutting face is formed with a cutting edge, the thread that is located on this body of rod of plural number extends to this cutting edge simultaneously, and joins with the wherein ora terminalis of this cutting edge.

Adopt said structure, the present invention carries out drilling by this cutting edge and the smear metal that the drilling process produces is struck off, the channel of chip removal that cooperates this two cutting face guiding of tilting that smear metal is entered between thread smoothly more also discharges fast, can avoid causing a large amount of smear metals to hoard, and effectively reduce sealed torsion and promote sealed speed, be deeply buried in easily in the sealed object behind this screw closure simultaneously, it is follow-up and connect the carrying out of construction to help these sealed objects.

Description of drawings

Fig. 1 is the schematic representation of known screw;

Fig. 2 is known another locked state schematic representation;

Fig. 3 is the schematic representation of preferred embodiment of the present invention;

Fig. 4 is the end view of preferred embodiment of the present invention;

Fig. 5 is the locked state schematic representation of preferred embodiment of the present invention.

The primary component symbol description

3 spiral shells, 31 bodies of rod

32 spiral shell heads 33 bore the lock section

34 threads, 331 cutting face

332 cutting edges, 333 ora terminalis

Embodiment

Following conjunction with figs. and preferred embodiment elaborate to the present invention.

Before the present invention was described in detail, in the following description, similar elements was to represent with identical numbering.

Consult Fig. 3, a preferred embodiments of screw 3 of the present invention, this screw 3 includes a body of rod 31, and is located at the brill lock section 33 that the spiral shell head 32, of these body of rod 31 1 ends is located at these body of rod 31 the other ends, and plural whorl is located at the thread 34 on this body of rod 31; Wherein, 34 of these threads are formed with a channel of chip removal 341, cooperate again in addition and consult Fig. 4, particularly: be formed with two cutting face 331 that tilt on this brill lock section 33, and be formed with a cutting edge 332 in these 331 connecting parts, two cutting face, but and sealed object 4 of these cutting edge 332 drillings and effect that the smear metal that the drilling process produces is struck off, the plural simultaneously thread 34 that is located on this body of rod 31 extends to this cutting edge 332, and join with arbitrary ora terminalis 333 of this cutting edge, so but this this thread 34 of channel of chip removal 341 mats is the connected state that is connected mutually.

Consult Fig. 3, Fig. 5, when sealed, utilize this spiral shell head 32 to bestow this brill lock section 33 1 rotary torsions, so that the rotary-cut under this spiral shell head 32 drives of this cutting edge 332 enters in the sealed object 4 (composite sheet as shown in FIG.), utilize this moment this thread 34 to extend to a wherein ora terminalis 333 design of joining of this cutting edge 332, promptly enter in this sealed object 4 after making this cutting edge 332 and sealed object 4 contacting with these thread 34 rotary-cuts of gradual drive, make this cutting edge 332 in the drilling process, form a drilling effect, in sealed process, cooperate the auxiliary of these 332 liang of cutting face 331 of cutting edge simultaneously, make the smear metal that is produced through 332 rotary-cuts of this cutting edge, because of the cutting face 331 of this two inclined design is to postpone to 34 of this threads, so smear metal of these 331 pushing tows in two cutting face when sealed, be attached to this channel of chip removal 341, so that this smear metal is able to fast, successfully take advantage of a situation and discharge outward via this channel of chip removal 341, so can avoid causing a large amount of smear metals to produce and hoard and the extruding phenomenon, make this screw 3 sealed gradually, after being deeply buried in this sealed object 4, make these screw 3 strong fixs in wherein, therefore no matter be to adopt upright mode on this sealed object 4 at this screw 3 of sealed process, or being the inclination locking mode constructs, this screw 3 is deeply buried in after sealed in this sealed object 4 really, and it is follow-up and connect the carrying out of construction more to help this sealed object 4.

In sum, screw of the present invention is by two cutting face that form on this brill lock section, an and cutting edge that forms in this connecting part, two cutting face, so sealed process cooperates the auxiliary of this cutting edge and two chip surfaces, the channel of chip removal that the smear metal that produced in the sealed process is entered between thread smoothly through these cutting face is got rid of fast, so avoiding the smear metal generation hoards, can effectively reduce sealed torsion, promote effects such as sealed smoothness, this screw is deeply buried in the sealed object after simultaneously sealed, more be applicable to these closures and connect the carrying out of construction, so can reach purpose of the present invention really.

The above, only be explanation preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly change according to claims of the present invention and simple equivalent that description is done generally and modify, all should still belong in the scope that patent of the present invention contains.

Claims

1. screw, it includes a body of rod, and one is located at the spiral shell head of this body of rod one end, and one is located at the brill lock section of this body of rod the other end, and plural whorl is located at the thread on this body of rod; It is characterized in that:

Be formed with two cutting face that tilt on this brill lock section, and this connecting part, two cutting face is formed with a cutting edge, the thread that is located on this body of rod of plural number extends to this cutting edge simultaneously, and joins with the wherein ora terminalis of this cutting edge.