CN103671431A

CN103671431A - Security screw

Info

Publication number: CN103671431A
Application number: CN201310693477.8A
Authority: CN
Inventors: 陈学红
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2014-03-26

Abstract

The invention discloses a security screw. The security screw comprises a screw rod and a six-teeth screw head. The portion between the inner side of the six-teeth screw head and the screw rod is sleeved with a non-teeth screw head, a U-shaped buckle is movably connected to the non-teeth screw head, and a five-teeth screw head is arranged between the inner side of the non-teeth screw head and the screw rod. The diameter of the five-teeth screw head, the diameter of the non-teeth screw head and the diameter of the six-teeth screw head gradually decrease. Due to the fact that the security screw is provided with the screw heads with different shapes and different mounting and demounting modes, more probabilities are provided for operation in the process of use, and therefore the situation of heavy losses caused by one screw which cannot be normally demounted is avoided.

Description

A kind of safety set screw

Technical field

The present invention relates to a kind of screw, or rather, is a kind of safety set screw.

Background technique

No matter screw is to be all seen everywhere in daily life or in industrial production as a kind of common part.Large to heavy machinery, as bulldozer, excavator, little of wrist-watch, mobile phone, the existence of the screw that grows on trees.Screw is simple and practical in the application of fixing, connected element, low price.

Problem when people have also found that screw is used in the effect of approval screw.Such as spiral shell head thread after handling repeatedly of experience weares and teares gradually, the spanner uncontrollable screw that skids on thread.Some screw maintains static for many years, cannot normally from parts, unload down, although after a lot of bother, can unload the damage that screw is easy to cause parts, especially important to some parts, the loss causing cannot be estimated sometimes.

Summary of the invention

The present invention solves the existing technical problem of prior art, thereby a kind of safety set screw that has a plurality of spiral shell heads and can adopt various ways handling is provided.

Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:

A kind of safety set screw, comprise a screw rod and one or six tooth spiral shell heads, between the inner side of six described tooth spiral shell heads and described screw rod, be socketed with an anodontia spiral shell head, the buckle that be movably connected one " U " shape on described anodontia spiral shell head is also provided with First Five-Year Plan tooth spiral shell head between the inner side of described anodontia spiral shell head and described screw rod.

As preferred embodiment of the present invention, the diameter of described five tooth spiral shell heads, anodontia spiral shell head and six tooth spiral shell heads reduces gradually.

As preferred embodiment of the present invention, on the surface of described anodontia spiral shell head, be provided with symmetrically one first groove and one second groove, the first dop and second dop of the first described groove and the size of the second groove and described buckle match.

Because safety set screw of the present invention is provided with difformity and the different spiral shell head of handling mode, for the operation in using provides more possibility, avoided causing because of the screw that cannot normally dismantle the situation of heavy losses to occur.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the perspective view of safety set screw of the present invention;

Fig. 2 is the perspective view of the safety set screw in Fig. 1, is now another visual angle;

Fig. 3 is the perspective view of the safety set screw in Fig. 1, is now another visual angle;

Fig. 4 is the details enlarged diagram in the B region in Fig. 3;

Fig. 5 is the details enlarged diagram in the C region in Fig. 3.

Embodiment

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention are made to more explicit defining.

The invention provides a kind of safety set screw that has a plurality of spiral shell heads and can adopt various ways handling.

As shown in Figure 1, a kind of safety set screw 5, comprise a screw rod 1 and one or six tooth spiral shell heads 2, between the inner side of six described tooth spiral shell heads 2 and described screw rod 1, be socketed with an anodontia spiral shell head 41, the buckle 42 that be movably connected one " U " shape on described anodontia spiral shell head 41 is also provided with First Five-Year Plan tooth spiral shell head 3 between the inner side of described anodontia spiral shell head 41 and described screw rod 1.

As shown in Figure 1 and Figure 2, the diameter of described five tooth spiral shell heads 3, anodontia spiral shell head 41 and six tooth spiral shell heads 2 reduces gradually.

If Fig. 3 is to as shown in Fig. 5, on the surface of described anodontia spiral shell head 41, be provided with symmetrically one first groove 411 and one second groove 412, the first dop 421 and second dop 422 of the first described groove 411 and the size of the second groove 412 and described buckle 42 match.

Below only with a mode of execution, mentality of designing of the present invention is described, in the situation that system allows, the present invention can expand to external more function module simultaneously, thereby expands to greatest extent its function.

The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.

Claims

1. a safety set screw (5), comprise a screw rod (1) and one or six tooth spiral shell heads (2), it is characterized in that, between the inner side of six described tooth spiral shell heads (2) and described screw rod (1), be socketed with an anodontia spiral shell head (41), the buckle (42) that is movably connected one " U " shape on described anodontia spiral shell head (41) is also provided with First Five-Year Plan tooth spiral shell head (3) between the inner side of described anodontia spiral shell head (41) and described screw rod (1).

2. safety set screw according to claim 1 (5), is characterized in that, the diameter of described five tooth spiral shell heads (3), anodontia spiral shell head (41) and six tooth spiral shell heads (2) reduces gradually.

3. safety set screw according to claim 2 (5), it is characterized in that, on the surface of described anodontia spiral shell head (41), be provided with symmetrically one first groove (411) and one second groove (412), the first dop (421) and second dop (422) of described the first groove (411) and the size of the second groove (412) and described buckle (42) match.