CN2842043Y

CN2842043Y - Screw

Info

Publication number: CN2842043Y
Application number: CN 200520109288
Authority: CN
Inventors: 孙得宾
Original assignee: CHUNYU FACTORY Co Ltd
Current assignee: CHUNYU FACTORY Co Ltd
Priority date: 2005-06-01
Filing date: 2005-06-01
Publication date: 2006-11-29
Anticipated expiration: 2015-06-01

Abstract

The utility model discloses a kind of screw, it comprises a spiral shell head, and is located at the body of rod on the spiral shell head and a whorl and is located at thread on this body of rod; Be formed with a groove on this spiral shell head, this groove periphery is connected to be had corresponding in twos and is interconnected and is cross short slot and groove, wherein said groove week is because of offering a hole slot that is inclined to set between each short slot and groove, and the hole slot at these wantonly two diagonal angles communicates with this groove and forms a straight line, therefore, when screw mold during in this screw of punching press, just can discharge the air that the impact briquetting process is compressed by this hole slot place, with working life of prolonging this screw mold and prevent that this spiral shell head from damaging, in addition, by this groove, short slot, the mutual combination of groove and hole slot can have the effect of product indicia concurrently.

Description

Screw

Technical field

The utility model relates to a kind of screw.

Background technique

Consult Fig. 1, known screw 1 comprises a spiral shell head 11, and is located at the body of rod 12 on the spiral shell head 11 and a whorl and is located at thread 121 on this body of rod 12; Wherein, be formed with a groove 111 on this spiral shell head 11, and this groove 111 peripheries are connected to be had corresponding in twos and is interconnected and is cross short slot 112 and groove 113, this short slot 112 and groove 113 are formed with an inclined-plane 114 respectively at the jointing place with this groove 111 simultaneously, in addition this two groove 113 extends to this spiral shell head 11 outer rims respectively, and these groove 113 degree of depth and short slot 112 depth ratios are between 1: 4 to 2: 3; When using, the design of formed groove 111, short slot 112 and groove 113 on this spiral shell head 11, make this screw 1 can be used multiple hand tools sealed (as screwdrivers such as yi word pattern, cross and four angle heads), making the user that available screwdriver is than unrestriction, and increase the convenience of using.

Yet, use the back to find that this screw 1 still has following disappearance in reality, details are as follows:

1, mould is fragile:

Design in view of the groove that forms 111, short slot 112 and groove 113 on the spiral shell head 11 of this screw 1, make when this screw spiral shell head 11 is subjected to screw mold to carry out the impact briquetting operation, this screw mold can deepening along with groove 111 degree of depth gradually, and the air in above-mentioned groove 111, short slot 112 and the groove 113 is gradually reduced, and air by compression can't be disengaged again, cause that by compression air is counter to apply pressure on the screw mold, cause this screw mold fragile, relatively reduce working life.

2, the spiral shell head is fragile:

Still continuous above-mentioned, in view of by compression air can't effectively disengage, therefore air by compression just can influence the stroke of this screw mold punching press, cause the degree of depth of groove 111, short slot 112 and groove 113 of this spiral shell head 11 not dark, cause in the future this screw 1 when lock is established, hand tools can't closely contact in groove 111, short slot 112 and the groove 113 of this screw 1, causes this spiral shell head 11 to produce the phenomenon of so-called " collapsing tooth ".

3, product is difficult for indicating:

Generally speaking, the body of rod 12 and the thread 121 of this screw 1 all have main separately effect, if desire is with this body of rod 12 and thread 121 position as sign, probably will influence sealed usefulness again, therefore this screw 1 integral body of sight just has only these spiral shell head 11 places to can be used as the position of sign, yet, because the area of this spiral shell head 11 is all very narrow, and on this spiral shell head 11 again after offering groove 111, short slot 112 and groove 113, can be used as the sign part just more dwindles even deficiency, therefore, in fact the operation of Biao Shiing just has great difficulty, is difficult to carry out.

The model utility content

The purpose of this utility model is to provide a kind of screw, and it can reduce the spiral shell hair gives birth to damage and screw mold is increased working life, has the product indicia function simultaneously concurrently.

For achieving the above object, technical solution of the present utility model is: a kind of screw, and it comprises a spiral shell head, and is located at the body of rod on the spiral shell head and a whorl and is located at thread on this body of rod; Wherein, be formed with a groove on this spiral shell head, and this groove periphery is connected to be had corresponding in twos and is interconnected and is cross short slot and groove, this short slot and groove form an inclined-plane with the jointing place of this groove respectively simultaneously, in addition this two groove extends to this spiral shell head outer rim respectively, and this groove depth and short slot depth ratio are between 1: 4 to 2: 3; This groove week is because of offering the hole slot that is inclined to set between each this short slot and groove, and the hole slot at these wantonly two diagonal angles communicates with this groove and forms a straight line.

After adopting such scheme, the utility model and known work one are compared, the utility model has the enhancement part really in practicality as can be known, now in following explanation one by one:

1, die life is long:

Therefore have being obliquely installed of these hole slots by this screw, will make in this screw process of impact briquetting, the air of compression can outwards disengage from the hole slot lateral margin, can effectively reduce the pressure that the impact briquetting process produces, thereby prolongs screw mold working life.

2, the spiral shell head is not fragile:

Still continuous above-mentioned, in view of the air that compresses can outwards disengage from the hole slot lateral margin, therefore the stroke of screw mold punching press just can be complete, thereby the groove, short slot, groove and the hole slot that make this spiral shell head meet the degree of depth of standard, so that hand tools can be conflicted closely, avoid this spiral shell head to produce so-called " collapsing tooth " phenomenon.

3, need not increase product indicia:

Owing to after this groove, short slot, groove and hole slot make up mutually, make the head of this screw can present a meter font mark, increase the sign of product and need not go again, get final product the sign effect of tool product.

Description of drawings

Fig. 1 is the schematic perspective view of known screw;

Fig. 2 is the schematic perspective view of the utility model screw preferred embodiment;

Fig. 3 is the generalized section of preferred embodiment shown in Figure 2;

Fig. 4 is the generalized section of another preferred embodiment of the utility model;

Fig. 5 is the generalized section of another preferred embodiment shown in Figure 4.

Embodiment

Consult Fig. 2, Fig. 3, be the preferred embodiment of the utility model screw 2, it comprises a spiral shell head 21, and is located at the body of rod 22 on the spiral shell head 21 and a whorl and is located at members such as thread 221 on this body of rod 22; Wherein, be formed with a groove 211 on this spiral shell head 21, and this groove 211 peripheries are connected to be had corresponding in twos and is interconnected and is cross short slot 212 and groove 213, this short slot 212 and groove 213 are formed with an inclined-plane 214 respectively at the jointing place with this groove 211 simultaneously, in addition this two groove 213 extends to this spiral shell head 21 outer rims respectively, and these groove 213 degree of depth and short slot 212 depth ratios are between 1: 4 to 2: 3; The utility model particularly, these groove 211 peripheries offer the hole slot 215 that is inclined to set between each short slot 212 and groove 213, and the hole slot 215 at these wantonly two diagonal angles communicates with this groove 211 and forms a straight line, certainly, this hole slot 215 also can be offered to these 211 ends of groove, shown in Fig. 4,5 (it is that example is illustrated that present embodiment is opened in these groove 211 peripheries with this hole slot 21).

Consult Fig. 4, because the mutual combination of this groove 211, short slot 212, groove 213 and hole slot 215, make the head 21 of this screw 2 present a meter font mark, and the spiral shell head 21 that causes this screw 2 has a particularity in appearance, to make the Consumer in numerous screws, can distinguish out the utility model screw 2 easily, so that this screw 2 has the effect of product indicia.

Consult Fig. 5, when this screw 2 is subjected to this screw mold (not shown) and carries out the impact briquetting operation, the design that has these hole slots 215 by this screw 2, to make in groove 211 processes of this screw 2 of impact briquetting, the pressurized air that produces can be real-time, promptly outwards disengage from hole slot 215 lateral margins, therefore can effectively reduce the pressure that the impact briquetting process produces, to prolong the working life of this screw mold, simultaneously because compressed-air actuated disengaging, make the screw mold punching stroke can be complete, make the groove 211 of this spiral shell head 21, short slot 212, groove 213 and hole slot 215 meet the degree of depth of standard, therefore in the future when this screw 2 desires lock is established, hand tools just can contact at this groove 211 closely, short slot 212, in groove 213 and the hole slot 215, produce the phenomenon of so-called " collapsing tooth " and cause damage to avoid this spiral shell head 21.

When this screw 2 when sealed, utilize 212 designs that are formed with a hole slot 215 of these wantonly two short slots, make this screw 2 be applicable to a meter font screwdriver, so when carrying out sealed action, directly this meter font screwdriver is stretched and inserted in screw 2 grooves 211, also be about to this meter font screwdriver and be inserted into short slot 212 simultaneously, in groove 213 and the hole slot 215, be rotated sealed action in order to this meter font screwdriver, and this screw 2 is locked on the object, so that these screw 2 decapacitation cooperate yi word pattern, outside screwdriver (not shown)s such as cross and four angle heads are used, can also be applicable to a meter font screwdriver, therefore, the hand tools that this screw 2 can be used is wider, more increase the convenience that uses.

Conclude aforementioned, the utility model screw, utilize being obliquely installed of this hole slot, so that the air that screw carries out being compressed in the impact briquetting process can outwards disengage, prolong screw mold working life and prevent the effect that the spiral shell head damages thereby have, while cooperatively interacts by this groove, short slot, groove and hole slot, makes the head of this screw can present a meter font mark, so that have the sign effect of product.

The above, only be explanation preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, i.e. the simple equivalence of doing according to the utility model claim and description generally changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1, a kind of screw, it comprises a spiral shell head, and is located at the body of rod on the spiral shell head and a whorl and is located at thread on this body of rod; Wherein, be formed with a groove on this spiral shell head, and this groove periphery is connected to be had corresponding in twos and is interconnected and is cross short slot and groove, this short slot and groove form an inclined-plane with the jointing place of this groove respectively simultaneously, in addition this two groove extends to this spiral shell head outer rim respectively, and this groove depth and short slot depth ratio are between 1: 4 to 2: 3; It is characterized in that:

This groove week is because of offering the hole slot that is inclined to set between each this short slot and groove, and the hole slot at these wantonly two diagonal angles communicates with this groove and forms a straight line.