CN2509367Y

CN2509367Y - Improved screwhead

Info

Publication number: CN2509367Y
Application number: CN 01263679
Authority: CN
Inventors: 陈金孙
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-16
Filing date: 2001-10-16
Publication date: 2002-09-04
Anticipated expiration: 2011-10-16

Abstract

The utility model provides an improved screwhead which is positioned in the center of the head of a screw body and concavely provided with a carved groove taking the shape of the Chinese character Mi and a carved groove taking the shape of a peach blossom. The two hole grooves of the Mi-shaped carved groove are crossed with each other, with the crossing angle being 90 DEG. The carved groove with the shape of peach blossom is provided with six arch hole grooves which are connected with each other, with the central included angle of each hole groove being 60 DEG. The carved groove with the shape of peach blossom is positioned at the central part, has the appearance of two arch hole grooves which are corresponding with each other on the upper and the lower sides, and is overlapped with one of the hole grooves of the Mi-shaped carved groove, while the other four hole grooves of the carved groove with the shape of peach blossom are positioned on the left and right sides of the carved groove and are corresponding with each other on the upper and the lower sides and positioned on the two sides of one hole groove of the Mi-shaped carved groove. Hereby, the utility model can enable the bolts and screw drivers with various shapes to be inserted into and revolve the screws, and the utility model is simple in structure, wide and convenient in use.

Description

The modified model screw head

Technical field

The utility model relates to a kind of screw, particularly relates to a kind of special cutting can be used effect for multiple difform screw driver insertion with rotating screw and increase modified model screw head formation that has.

Background technique

Existing screw, no matter its head is to be socket cap, the spill head, the tack column cap, sleeve column cap or oval head shape, all be concaved with cutting at its apical head, for insertions such as screw driver or electric tools, and rotary screw, general on the market being seen cutting, Mi Zixing slotted eye 1 as shown in Figure 1 and quincunx slotted eye 2 of circular arc shown in Figure 2 and the quincunx hole slot 7 in right angle shown in Figure 3, only can be for the Mi Zixing of corresponding shape, circular arc is quincunx and the quincunx screw driver in right angle inserts, the ability rotary screw, and the circular arc shown in Fig. 4 A quincunx 3 adds in-line slotted eye 4, and the circular arc shown in Fig. 4 B quincunx 5 adds in-line slotted eye 6, then can be for quincunx screw driver or the insertion of in-line screw driver, wherein, slotted eye 6 shown in this Fig. 4 B is that with slotted eye 4 difference shown in Fig. 4 A the one font groove does not extend through two sides, therefore can insert for the in-line screw driver than small dimension; The defective of aforementioned each screw head maximum promptly is only can insert rotary screw in its cutting with single kind of screw driver, and also can only have at most quincunx can cooperate to rotate with the screw driver of in-line have the screw that circular arc quincunx 5 adds in-line slotted eye 6, therefore, need spend the more time in use seeks corresponding instrument, and the more necessary screw driver of getting all the various shape ready of user causes inconvenience and man-hour and cost waste in the use.

The model utility content

The purpose of this utility model is to provide a kind of modified model screw head formation, and it has and can insert rotary screw for the screw driver of multiple shape, increases the convenience of using.

The purpose of this utility model is to realize like this, a kind of modified model screw head promptly is provided, be positioned at the head center of a screw body, wherein, be concaved with a Mi Zixing cutting and a quincunx cutting on the described screw head, two hole slots of wherein said Mi Zixing cutting intersect and the vertical folder an angle of 90 degrees mutually, described quincunx cutting has six continuous circular arc hole slots, the center angle of each hole slot is 60 degree, and the degree of depth of described its two hole slot of Mi Zixing cutting is shallower than each circular arc hole slot of described quincunx cutting, and described quincunx cutting is positioned at the central position and presents, following two corresponding circular arc hole slots, with a described Mi Zixing cutting hole slot wherein the position overlaid is set, and other four lay respectively at a left side, right two sides are presented, following corresponding circular arc hole slot, then just be in two sides of described another hole slot of Mi Zixing cutting, thus, can insert and rotating screw for the screw driver of any shape.

Advantage of the present utility model is that it has special cutting, inserts with rotating screw for multiple difform screw driver, use effect thereby increase it, and it is rational in infrastructure, uses extensive, convenient.

Description of drawings

Fig. 1 is existing top view with Mi Zixing hole screw head;

Fig. 2 is the top view of existing quincunx hole screw head;

Fig. 3 is existing first kind of top view with quincunx hole and in-line hole screw head;

Fig. 4 A and Fig. 4 B are existing second kind of top view with quincunx hole and in-line hole screw head;

Fig. 5 is the top view of the utility model first preferred embodiment screw head;

Fig. 6 is the side cross-sectional schematic of Fig. 5 screw head;

Fig. 7 is the top view of the utility model second preferred embodiment screw head;

Fig. 8 is the side cross-sectional schematic of Fig. 7 screw head;

Fig. 9 is the top view of the utility model the 3rd preferred embodiment screw head;

Figure 10 is the side cross-sectional schematic of Fig. 9 screw head;

Figure 11 A, Figure 11 B and Figure 11 C are the top view of the utility model the 4th preferred embodiment screw head;

Figure 12 is the top view of the utility model the 5th preferred embodiment screw head.

Embodiment

See also Fig. 5 and shown in Figure 6, it is the utility model modified model screw head 10 structures, at head 12 centers of a screw body 11, is concaved with a Mi Zixing cutting 13 and a quincunx cutting 14, wherein:

Two

hole slots

31,32 of this Mi Zixing cutting 13 are for to have the strip hole of appropriate size, and the mode that is mutual intersection and vertical folder an angle of 90 degrees is provided with, and this two

hole slot

31,32 by the end face of its head 12 down, tilt gradually toward the center and be cone-shaped; Cutting 14 that this is quincunx has six continuous circular arc hole slots 41～46, the center angle of each hole slot 41～46 (being denoted as θ's among the figure) is 60 degree, and the degree of depth of each circular arc hole slot 41～46 is deeper than this Mi Zixing cutting 13 its two

hole slots

31,32 the degree of depth, and this quincunx cutting 14 is positioned at the central position, and present, following two corresponding circular

arc hole slots

41,44 with this Mi Zixing cutting 13 hole slot 31 wherein the position overlaid is set, and other four lay respectively at a left side, right two sides are presented, following corresponding circular

arc hole slot

42 and 45,43 and 46, then just be in two sides of these Mi Zixing cutting 13 another hole slots 32; Circular arc hole slot 41～46 can be made as the hole slot 17 of right angle type in the above-mentioned quincunx cutting 14, and shown in Figure 11 A, Figure 11 B and Figure 11 C, Figure 12 then also can establish for this quincunx cutting 14 and be five continuous circular arc hole slots 51～55.

Thus, above-described screw head 10 can comprise Mi Zixing tool head and quincunx tool head for the screw driver of multiple shape, can both be with in the cutting of inserting correspondence out of the ordinary and rotating screw.

See also Fig. 7 and shown in Figure 8, it is second preferred embodiment of the utility model screw head, at head 12 centers of this screw except being concaved with a Mi Zixing cutting 13 and a quincunx cutting 14, more be equipped with font cutting 15 one by one, and this in-line cutting 15 is positioned at the central position with this quincunx cutting 14 and presents, following two corresponding circular

arc hole slots

41,44 and this Mi Zixing cutting 13 wherein a hole slot 31 the position overlaid is set, but the degree of depth of this in-line cutting 15 is made as between this quincunx cutting 14 and this Mi Zixing cutting 13, and this in-line cutting 15 is a horizontal groove, and runs through two sides of this screw head 12.

Therefore, in use, but sacrificial vessel has the screwdriver of Mi Zixing tool head, quincunx tool head and in-line tool head, can both be with out of the ordinary insert in the corresponding cutting rotating screw.

The 3rd preferred embodiment of the present utility model, please cooperate and consult Fig. 9 and shown in Figure 10, the difference of itself and aforementioned second preferred embodiment only is, the length of this in-line cutting 16 is made as greater than hole slot 31 length of this Mi Zixing cutting 13, therefore can be inserted in for the screwdriver of the less in-line tool head of specification in this cutting 16 and rotating screw.

What must propose explanation is, the utility model modified model screw head formation, be not simply the head that is arranged at screw to be concentrated in various cutting, it during fabrication, through test and improvement in many ways, make Mi Zixing cutting 13 and quincunx cutting 14 merge the size that is provided with, must be in not influencing the torque range that screw head 12 can bear, and Mi Zixing cutting 13 and quincunx cutting 14 each other degree of depth and width, also the length of necessary attachment screw body makes screw have enough torsion to screw in object; Moreover structure of the present utility model is applicable to various difform screw head.

Claims

1. modified model screw head, be positioned at the head center of a screw body, it is characterized in that, be concaved with a Mi Zixing cutting and a quincunx cutting on the described screw head, two hole slots of wherein said Mi Zixing cutting intersect and the vertical folder an angle of 90 degrees mutually, described quincunx cutting has six continuous circular arc hole slots, the center angle of each hole slot is 60 degree, and the degree of depth of described its two hole slot of Mi Zixing cutting is shallower than each circular arc hole slot of described quincunx cutting, and described quincunx cutting is positioned at the central position and presents, following two corresponding circular arc hole slots, with a described Mi Zixing cutting hole slot wherein the position overlaid is set, and other four lay respectively at a left side, right two sides are presented, following corresponding circular arc hole slot, then just be in two sides of described another hole slot of Mi Zixing cutting, thus, can insert and rotating screw for the screw driver of any shape.

2. according to the described a kind of modified model screw head of claim 1, it is characterized in that described quincunx cutting is provided with and is five continuous circular arc hole slots.

3. according to claim 1 and 2 described a kind of modified model screw head, it is characterized in that each the circular arc hole slot in the described quincunx cutting is established and is rectangular in shape.

4. according to the described a kind of modified model screw head of claim 1, it is characterized in that, also has an in-line cutting, it is arranged with the head center in described screw body, with quincunx cutting be positioned at the central position go to upper and lower two corresponding circular arc hole slots and described Mi Zixing cutting wherein a hole slot the position overlaid is set, and the degree of depth of described in-line cutting is between described quincunx cutting and described Mi Zixing cutting.

5. according to the described a kind of modified model screw head of claim 4, it is characterized in that described in-line cutting is two sides that run through described screw body head.

6. according to the described a kind of modified model screw head of claim 4, it is characterized in that the length of described in-line cutting is longer than the hole slot of described Mi Zixing cutting.