CN203516393U

CN203516393U - Screw

Info

Publication number: CN203516393U
Application number: CN201320684641.4U
Authority: CN
Inventors: 岑家德
Original assignee: Vad Car Industry Part Co Ltd
Current assignee: Vad Car Industry Part Co Ltd
Priority date: 2013-10-30
Filing date: 2013-10-30
Publication date: 2014-04-02
Anticipated expiration: 2023-10-30

Abstract

The utility model discloses a screw which comprises a screw head and a screw rod extending downwards from the screw head, wherein threads are formed in the screw rod and surround the screw rod; an annular gasket is fixedly nested at the combination part of the screw head and the screw rod, through holes are formed in the annular gasket, and corresponding bolts are inserted into the through holes; and an auxiliary cutting area is formed between every two adjacent high and low threads in the screw rod and comprises a cutting section and a chip removal section. The screw has a reinforcing function and is difficult to loosen, the locking torque is larger, the screw is labor-saving when screwed in, and chips can be more timely discharged, so that the phenomenon that a fixed object cracks or the screw breaks can be avoided.

Description

A kind of screw

Technical field

The utility model relates to fastener areas, is specifically related to a kind of screw.

Background technique

Current the most conventional screw aborning, also be generally the standby screw of family and include spiral shell head and screw rod, on its spiral shell end surface, all screw-driver slot can be set, and on screw rod, be equipped with thread, yet the standby screw of existing family can not meet the connection of a lot of objects to be used, there are a lot of deficiencys in it: one, along with being fixed, object is in use constantly clashed into, easily cause loosening, and then the stability of impact fixedly time, and when screw easily comes off for a long time in loosening situation, generation probably causes the accident when serious; Its two, the sealed torsion of existing screw is less, and screw is comparatively required great effort when screwing in object, and screw while screwing in the smear metal of inside can not get rid of in time the situation that is easy to cause the cracking of object or causes broken screw.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of screw rational in infrastructure, easy to use, solved the poor easy generation of existing screw stationarity loosening, sealed process is comparatively required great effort, and screw while screwing in object chip discharge easily cause not in time the cracking of object or cause the deficiencys such as self fracture.

In order to solve the existing problem of background technique, the utility model has adopted following technological scheme: a kind of screw, comprise spiral shell head and the screw rod to downward-extension by spiral shell head, on described screw rod, be equipped with thread, connecting part fixed cover between described spiral shell head and screw rod is provided with an annular gasket, described annular gasket is provided with through hole, on described through hole, be inserted with corresponding screw, on described screw rod, be made as assisted machining district up and down between two adjacent threads, described assisted machining district comprises segment of cutting and chip ejection segment thereupon.

By adopting above technological scheme, the screw portion of this screw screws in and needs after fixed object, the screw being arranged on through hole also can hammer in fixed object thereupon, thereby played the effect of reinforcing, make it be difficult for getting loose, and make its sealed torsion larger by be provided with segment of cutting and row's arm section between adjacent thread, more laborsaving when screw screws in, and chip removal is more timely.

Further setting of the present utility model: center, described spiral shell head upper end is provided with an annular groove, is provided with internal thread on the sidewall of described annular groove, arranges the screw-driver slot inserting for bottle opener on the diapire of described annular groove.

By adopting above technological scheme, this screw is used more convenient, can insert screw-driver slot by screwdriver screw is screwed in to object, can also screw be screwed in to object by having the externally threaded instrument corresponding with annular groove sidewall internal thread.

Further setting of the present utility model: described thread has a upper edge and with respect to the lower tangent plane of upper edge, described segment of cutting is arranged on the lower tangent plane of thread, and described chip ejection segment thereupon is arranged on the upper edge of thread.

By adopting above technological scheme, when this screw screw-in needs fixed object, segment of cutting has played good shear action, more laborsaving when it is screwed in, and chip ejection segment thereupon is in segment of cutting below, and smear metal can be discharged in time.

Further setting of the present utility model: be provided with some sections of establishing along thread ring on described segment of cutting.

By adopting above technological scheme, described section is conducive to screw and is screwed into and needs in fixed object more fast.

Further setting of the present utility model: described annular gasket is provided with four symmetrical through holes, is inserted with respectively screw on four described through holes.

By adopting above technological scheme, the stationarity of this screw is further enhanced, and makes it more be difficult for getting loose and more firm.

The beneficial effects of the utility model are: a kind of screw of the present utility model has the effect of reinforcing, make it to be difficult for getting loose, and between adjacent thread, be provided with segment of cutting and chip ejection segment thereupon makes its sealed torsion larger, more laborsaving during screw-in, and chip removal is more timely, thereby can avoid being fixed, object ftractures or the phenomenon of screw self fracture.

Accompanying drawing explanation

Fig. 1 is front view when bolt separates with nut in the utility model;

Fig. 2 is the sectional view of nut in the utility model;

Embodiment

In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 1 and Figure 2, a kind of screw of the present utility model, comprise spiral shell head 1 and the screw rod 2 to downward-extension by spiral shell head 1, on screw rod 2, be equipped with thread 3, the connecting part fixed cover between spiral shell head 1 and screw rod 2 is provided with an annular gasket 4, and this annular gasket 4 is provided with four symmetrical through holes 41, on its four through holes 41, be all inserted with corresponding screw 42, further, on screw rod 2, be made as assisted machining district up and down between two adjacent threads 3, this assisted machining district comprises segment of cutting 5 and chip ejection segment thereupon 6.Like this screw rod of screw 2 parts are screwed in and needed after fixed object, further, screw on through hole 41 42 is also hammered into thereupon and needed in fixed object, thereby played the effect of reinforcing, make it be difficult for getting loose, and make its sealed torsion larger by be provided with segment of cutting 5 and chip ejection segment thereupon 6 between adjacent thread 3, more laborsaving when screw screws in, and chip removal is more timely.

In the present embodiment, spiral shell head 1 center, upper end is provided with an annular groove 7, on the sidewall of this annular groove 7, be provided with the screw-driver slot 8 that is provided with the insertion of confession bottle opener on internal thread 71 and its diapire, this screw is used more convenient like this, both can insert screw-driver slot 8 by screwdriver screw is screwed in to object, also can screw be screwed in to object by thering is the externally threaded instrument corresponding with annular groove 7 sidewall internal threads 71.

In the present embodiment, thread 3 has a upper edge 31 and with respect to the lower tangent plane 32 of upper edge 31, segment of cutting 5 is arranged on the lower tangent plane 32 of thread 3, and chip ejection segment thereupon 6 is arranged on the upper edge 31 of thread 3, wherein segment of cutting 5 is provided with some sections 9 of establishing along thread 3 rings.Like this when this screw screws in while needing fixed object, segment of cutting 5 has played good shear action by 9 the effect of cutting into slices, more laborsaving when it is screwed in, and chip ejection segment thereupon 6 is in segment of cutting 5 belows, and smear metal can be discharged in time.

Claims

1. a screw, comprise spiral shell head (1) and the screw rod (2) to downward-extension by spiral shell head (1), on described screw rod (2), be equipped with thread (3), it is characterized in that: the connecting part fixed cover between described spiral shell head (1) and screw rod (2) is provided with an annular gasket (4), described annular gasket (4) is provided with through hole (41), on described through hole (41), be inserted with corresponding screw (42), on described screw rod (2), be made as assisted machining district up and down between two adjacent threads (3), described assisted machining district comprises segment of cutting (5) and chip ejection segment thereupon (6).

2. a kind of screw according to claim 1, it is characterized in that: described spiral shell head (1) center, upper end is provided with an annular groove (7), on the sidewall of described annular groove, be provided with internal thread (71), the screw-driver slot (8) inserting for bottle opener is set on the diapire of described annular groove (7).

3. a kind of screw according to claim 1, it is characterized in that: described thread (3) has a upper edge (31) and with respect to the lower tangent plane (32) of upper edge (31), described segment of cutting (5) is arranged on the lower tangent plane (32) of thread (3), and described chip ejection segment thereupon (6) is arranged on the upper edge (31) of thread (3).

4. a kind of screw according to claim 1, is characterized in that: on described segment of cutting (5), be provided with some sections (9) of establishing along thread (3) ring.

5. a kind of screw according to claim 1, is characterized in that: described annular gasket (4) is provided with four symmetrical through holes (41), on described four through holes (41), is inserted with respectively screw (42).