CN206072066U - A kind of Flat-head internal hexagonal screw - Google Patents

Abstract

The utility model discloses a kind of Flat-head internal hexagonal screw，Including hexagon socket head cap screw body，Hexagon socket head cap screw body includes screw terminal、Screw rod、Threading and interior hexagonal groove，The top of hexagon socket head cap screw body is fixed with screw terminal，The bottom of hexagon socket head cap screw body is fixed with screw rod，The top of screw terminal is fixed with interior hexagonal groove，Threading is fixed with screw rod uniformly，Simple structure of the present utility model，It is cheap，And it is practical，By being provided with interior hexagonal groove，Hexagon socket head cap screw body can be fastened or be dismantled by using inner hexagon spanner，By being provided with threading，The combination that screw and object can be caused even closer when in use，So that apparatus is more safe when in use，By being provided with circular hole chamber，Hexagon socket head cap screw body is enabled in the case where due rigidity state is ensured，Gross weight can be mitigated，Material can also be saved simultaneously，It is more environmentally-friendly.

Description

A kind of Flat-head internal hexagonal screw

Technical field

This utility model is related to a kind of screw, more particularly to a kind of Flat-head internal hexagonal screw.

Background technology

Screw is the physicss of the inclined-plane circular rotating and frictional force using object and mathematical principle, is fastened by easy stages The instrument of implements parts.Screw is the general saying of securing member, daily pet phrase.Screw is work indispensable in daily life Industry necessary：The minimum screw that such as photographing unit, glasses, clock and watch, electronics etc. are used；TV, electric product, musical instrument, furniture etc. General screw；Large-scale screw, nut are used then as engineering, building, bridge；Traffic tool, aircraft, electric car, automobile etc. are then It is used in combination for big primary screw.Screw industrially bears vital task, as long as industry is there is on the earth, then the function of screw is eternal It is important.Screw is joint invention over the past thousands of years in people's productive life, and from the point of view of application, it is the first big of the mankind Invention, more using material when not enough facilitating during common screw use, and producing, inadequate economical environment-protective.

Utility model content

The utility model proposes a kind of Flat-head internal hexagonal screw, solve inadequate when screw screw in prior art is used Convenient and more using material when producing, the problem of inadequate economical environment-protective makes screw use enhanced convenience.

In order to solve above-mentioned technical problem, this utility model provides following technical scheme：

A kind of Flat-head internal hexagonal screw of this utility model, including hexagon socket head cap screw body, the hexagon socket head cap screw body bag Screw terminal, screw rod, threading and interior hexagonal groove are included, the top of the hexagon socket head cap screw body is fixed with the screw terminal, institute The bottom for stating hexagon socket head cap screw body is fixed with the screw rod, and it is recessed that the top of the screw terminal is fixed with the interior hexagonal Groove, is uniformly fixed with the threading on the screw rod, the inside of the screw rod is provided with circular hole chamber.

Used as a kind of optimal technical scheme of the present utility model, the diameter range of the screw rod is 12.57 millimeters to 12.70 Millimeter.

Used as a kind of optimal technical scheme of the present utility model, the screw tip is provided with the external diameter of the threading and is more than institute State the external diameter that screw rod bottom is provided with the threading.

Used as a kind of optimal technical scheme of the present utility model, the maximum outside diameter of the threading is 12.9 millimeters.

Used as a kind of optimal technical scheme of the present utility model, the opposite side length range of the interior hexagonal groove is 7.87 millis , to 8.05 millimeters, the depth of the interior hexagonal groove is minimum 3.81 millimeters for rice.

The beneficial effect reached by this utility model is：This utility model, can be by making by being provided with interior hexagonal groove Hexagon socket head cap screw body is fastened or dismantled with inner hexagon spanner, by being provided with threading, spiral shell can be caused when in use The even closer combination of silk and object so that apparatus is more safe when in use, by being provided with circular hole chamber, enables to interior six Angle screw body can mitigate gross weight in the case where due rigidity state is ensured, while material can be also saved, it is more environmentally-friendly, Overall structure is simple, cheap, practical, it is easy to promote.

Description of the drawings

Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for description, with this practicality New embodiment is used for together explaining this utility model, does not constitute to restriction of the present utility model.In the accompanying drawings：

Fig. 1 is subjective structural representation of the present utility model；

Fig. 2 is overlooking the structure diagram of the present utility model；

In figure：1st, screw terminal；2nd, screw rod；3rd, threading；4th, interior hexagonal groove；5th, hexagon socket head cap screw body；6th, circular hole chamber.

Specific embodiment

Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent Select embodiment to be merely to illustrate and explain this utility model, be not used to limit this utility model.

Embodiment 1

As shown in Figure 1-2, a kind of Flat-head internal hexagonal screw of this utility model offer, including hexagon socket head cap screw body 5, interior six Angle screw body 5 includes screw terminal 1, screw rod 2, threading 3 and interior hexagonal groove 4, and the top of hexagon socket head cap screw body 5 is fixed with Screw terminal 1, the bottom of hexagon socket head cap screw body 5 are fixed with screw rod 2, and the top of screw terminal 1 is fixed with interior hexagonal groove 4, Threading 3 is fixed with screw rod 2 uniformly, the inside of screw rod 2 is provided with circular hole chamber 6.

Further, the diameter range of screw rod 2 is easy to batch production for 12.57 millimeters to 12.70 millimeters, using more square Just.

The external diameter that threading 3 is provided with the top of screw rod 2 is provided with the external diameter of threading 3 more than 2 bottom of screw rod, enables to screw and work The even closer connection of part, is difficult to loosen, using safer.

The maximum outside diameter of threading 3 is 12.9 millimeters, and using effect is more preferable.

The opposite side length range of interior hexagonal groove 4 is 7.87 millimeters to 8.05 millimeters, and the depth of interior hexagonal groove 4 is minimum 3.81 millimeters so that the production of screw is protected so that each screw can use same inner hexagon spanner, using more square Just.

When specifically used, user is fastened to screw using inner hexagon spanner or is dismantled, hexagon socket head cap screw body 5 1 outer ring of screw terminal be circle, bigger contact surface can be obtained with workpiece in the screw rod 2 for tightening hexagon socket head cap screw body 5, be utilized Threading 3 is uneven with workpiece stress, so locking function can be played, is difficult to loosen after tightening, and the bottom of screw rod 2 is provided with Chamfering, it is convenient to be connected with workpiece, electroplated on hexagon socket head cap screw body 5, reduced Korrosionsmedium and metal package Contact so that hexagon socket head cap screw body 5 reaches the purpose for avoiding or mitigating corrosion so that the service life of screw is longer.

This utility model, can be by using inner hexagon spanner to hexagon socket head cap screw body 1 by being provided with interior hexagonal groove 4 Fastened or dismantled, by being provided with threading 3, can cause hexagon socket head cap screw body 1 even closer with object when in use Combination so that apparatus is more safe when in use, by being provided with circular hole chamber 6, enable to hexagon socket head cap screw body 1 protect Hinder under due rigidity state, gross weight can be mitigated, while can also save material, more environmentally-friendly, overall structure is simple, makes Valency is cheap, practical, it is easy to promote.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to Utility model, although being described in detail to this utility model with reference to the foregoing embodiments, for those skilled in the art For, which still can be modified to the technical scheme described in foregoing embodiments, or to which part technical characteristic Carry out equivalent.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc., Should be included within protection domain of the present utility model.

Claims (5)

1. a kind of Flat-head internal hexagonal screw, including hexagon socket head cap screw body (5), it is characterised in that the hexagon socket head cap screw body (5) including screw terminal (1), screw rod (2), threading (3) and interior hexagonal groove (4), the top of the hexagon socket head cap screw body (5) is solid Surely the screw terminal (1) is provided with, the bottom of the hexagon socket head cap screw body (5) is fixed with the screw rod (2), the screw terminal (1) top is fixed with the interior hexagonal groove (4), and the threading (3) is uniformly fixed with the screw rod (2), described The inside of screw rod (2) is provided with circular hole chamber (6).

2. a kind of Flat-head internal hexagonal screw according to claim 1, it is characterised in that the diameter range of the screw rod (2) For 12.57 millimeters to 12.70 millimeters.

3. a kind of Flat-head internal hexagonal screw according to claim 2, it is characterised in that be provided with institute at the top of the screw rod (2) The external diameter for stating threading (3) is provided with the external diameter of the threading (3) more than the screw rod (2) bottom.

4. a kind of Flat-head internal hexagonal screw according to claim 3, it is characterised in that the maximum outside diameter of the threading (3) For 12.9 millimeters.

5. a kind of Flat-head internal hexagonal screw according to claim 1, it is characterised in that the interior hexagonal groove (4) it is right Edge lengths scope is 7.87 millimeters to 8.05 millimeters, and the depth of the interior hexagonal groove (4) is minimum 3.81 millimeters.