CN2833214Y

CN2833214Y - Screw with convex wing

Info

Publication number: CN2833214Y
Application number: CN 200520115518
Authority: CN
Inventors: 王再哲
Original assignee: ZHUSHENG ENTERPRISE CO Ltd
Current assignee: ZHUSHENG ENTERPRISE CO Ltd
Priority date: 2005-07-21
Filing date: 2005-07-21
Publication date: 2006-11-01
Anticipated expiration: 2015-07-21

Abstract

The utility model discloses a screw with convex wings, which comprises a screwhead, a rod body arranged on the screwhead and two convex wings respectively arranged on the rod body, wherein the rod body is provided with a first segment adjacent to the screwhead, and a second segment opposite to the first segment, wherein the circumference of the second segment is annularly provided with a plurality of spiral screw threads; moreover, the two convex wings are positioned on the first segment and the circumference of each convex wing is extended with a cutting blade. As a result, in the process of locking, the cutting blade of each convex wing can be used for cutting a regular through hole of a plastic board easily. Therefore, the plastic board at the circumference of the through hole can be prevented from bending and curling so as to ensure a pad to be attached on the plastic board tightly and to seal the through hole. Consequently, good waterproofing effect can be achieved. Meanwhile, the cutting blades are not too sharp, so the use safety and the assembly convenience can be improved.

Description

The screw of the protruding wing of tool

Technical field

The utility model relates to a kind of screw design, is meant a kind of screw that is used to lock the protruding wing of tool of establishing plastic plate especially.

Background technique

Consult Fig. 1, known protruding wing screw 1 is applicable to a plastic plate 2 is locked on (not shown) on the roof upper frame, its include a spiral shell head 11, one and the body of rod 12, two that links of this spiral shell head 11 be divided into protruding wing 13 and on this body of rod 12 and be sheathed on these body of rod 12 outer periphery and be positioned at this spiral shell head 11 and the rubber sheet gasket 14 of 13 of protruding wings; Wherein, this body of rod 12 is equipped with most spiral helicine threads 121, and this two protruding wing 13 is positioned at this thread 121 top relatively in addition.

When this screw 1 cuts these plastic plates 2 with this thread 121, make this body of rod 12 be screwed into this plastic plate 2 gradually, then penetrate in the roof upper frame, thereby make this pad 14 be produced waterproof action with the two-way packing of upper frame by spiral shell head 11, simultaneously in thread 121 and this upper frame locking process, relend by this two protruding wing 13 and outwards push plastic plate 2 open, make this plastic plate 2 produce the perforation 21 that can supply the body of rod 12 to pass through, to make this body of rod 12 can not contact with this plastic plate 2, avoid the amplitude of expanding with heat and contract with cold excessive because of plastic plate 2, and cause this plastic plate 2 at high temperature to push the body of rod 12 and the formation slight crack, in case temperature reduces, the situation that this slight crack will enlarge along with the volume-diminished of plastic plate 2 takes place; Yet, in view of this two protruding wing 13 is to strut plastic plate 2 to support crowded mode, relatively this plastic plate 2 will be bestowed the identical reaction force of this protruding wing 13, therefore will cause these 21 peripheries of boring a hole to present irregular, the plastic plate 2 of 21 peripheries produced pryings so that should bore a hole, cause this pad 14 closely to be attached on the plastic plate 2, cause waterproofing effect not good.

For this reason, the dealer is improved at the disappearance of above-mentioned known protruding wing screw 1, develops another screw form.Consult Fig. 2, be another known protruding wing screw 3, its still include a spiral shell head 31, one and the body of rod 32, two that links of this spiral shell head 31 be divided into protruding wing 33 and on this body of rod 32 and be sheathed on these body of rod 32 outer periphery and be positioned at this spiral shell head 31 and the rubber sheet gasket 34 of 33 of protruding wings; Wherein, aforementioned this spiral shell head 31, the body of rod 32, protruding wing 33 and be sheathed on structures such as rubber sheet gasket 34 on the body of rod 32 outer periphery, all identical with aforementioned known protruding wing screw 1, do not describe in detail for this reason; And its improvement part is: this protruding wing 33 is for sharp-pointed barb-like, when these screw 3 locks are established, utilize this sharp-pointed barb-like protruding wing 33 cutting plastic plate (not shown)s, thereby make this plastic plate form a perforation that can supply the body of rod 32 to pass through, to make this body of rod 32 can not contact with this plastic plate, but because of this protruding wing 33 is too given prominence to sharp-pointed, make the user easily be stabbed by this protruding wing 33, go up dangerous anxiety so use, add this pad 34 by being inserted on the body of rod 32 lower directions, protruding wing 33 barbs conflict mutually with these pad 34 mounting directions, so pad 34 assembling operations are more difficult.

The model utility content

The purpose of this utility model is to provide the screw of the protruding wing of a kind of tool, it has the perforation that can easily plastic plate be cut out a rule on using, avoid the plastic plate of this perforation periphery to produce prying, reaching preferable waterproofing effect, and can improve safety in utilization and property easy to assembly.

For achieving the above object, technical solution of the present utility model is: the screw of the protruding wing of a kind of tool, and it comprises a spiral shell head, a body of rod and two protruding wings; The described body of rod is fixedly arranged on Luo Toushang, and it has first section of contiguous this spiral shell head and second section of opposite first section, is equipped with most spiral helicine threads simultaneously on this second section periphery; Described two protruding wings are divided into first section of the body of rod, and protruding wing periphery is extended with a cutting blade.

This protruding wing is radially stretched out by the first section circumferential surface of the body of rod, and this protruding wing length of radially extending is towards the second section direction convergent of the body of rod.

This screw more includes one and is set in the first section outer periphery separably, and the pad between this spiral shell head and protruding wing.

After adopting such scheme, because two protruding wing peripheries of the utility model screw are extended with a cutting blade, in sealed process, utilize the cutting blade of protruding wing, can easily plastic plate be cut out the perforation of a rule, avoid the plastic plate of this perforation periphery to produce prying, thereby guarantee that pad closely is attached on the plastic plate and seals this perforation, and then reaching preferable waterproofing effect, this cutting blade also is unlikely too sharp-pointed simultaneously, so as to Security that improve to use and effect such as easy to assembly.

Description of drawings

Fig. 1 is the user mode schematic representation of known protruding wing screw;

Fig. 2 is the schematic representation of another known protruding wing screw;

Fig. 3 is the schematic representation of the utility model preferred embodiment;

Fig. 4 is the local enlarged diagram of the protruding wing of the utility model preferred embodiment;

Fig. 5 is a user mode schematic representation of the present utility model.

The primary clustering symbol description

4 protruding wing screw 424 circumferential surfaces 41 spiral shell heads

43 protruding wing 42 bodies of rod 431 cutting blades

421 first sections, 44 pads, 422 second sections

423 threads

Embodiment

Consult Fig. 3, shown in Figure 4, be the preferred embodiment of one of the screw 4 of the protruding wing of the utility model tool, this screw 4 includes a spiral shell head 41, and is located at the body of rod 42 and two on the spiral shell head 41 and is divided into members such as protruding wing 43 on the body of rod 42; Wherein, this body of rod 42 has first section 421 of contiguous this spiral shell head 41, and second section 422 of opposite first section 421, be equipped with most spiral helicine threads 423 simultaneously on these second section, 422 peripheries, this two protruding wing 43 is positioned on this first section 421 in addition, particularly, these protruding wing 43 peripheries are extended with a cutting blade 431, this protruding wing 43 is radially stretched out by the circumferential surface 424 of this first section 421 simultaneously, and the length that this protruding wing 43 radially extends is dwindled gradually towards these second section, 422 directions; Other this screw 4 more includes one and is set in first section, 421 outer periphery separably, and the pad 44 between this spiral shell head 41 and protruding wing 43.

Cooperate and consult Fig. 5, when this screw 4 when plastic plate 5 being locked on the roof upper frame (not shown), must be earlier before assembling with this pad 44 by first section, 421 outer periphery of being inserted on the body of rod 42 lower directions in the body of rod 42, make this pad 44 be in close proximity to this spiral shell head 41 and between this spiral shell head 41 and protruding wing 43.

When the user contacts at these screw 4 bottoms on the plastic plate 5, and bestow a rotary torsion in this spiral shell head 41 and rotate up to moving this thread 423 synchronously, by these thread 423 cutting plastic plates 5, thereby make this body of rod 42 penetrate this plastic plate 5 and form one and bore a hole 51, then penetrate in this upper frame, and in thread 423 and this upper frame locking process, this protruding wing 43 is also simultaneously by this perforation 51, the cutting blade 431 that utilizes this protruding wing 43 to be extended to form, and the length system that this protruding wing 43 radially extends dwindles gradually towards these second section, 422 directions, make this cutting blade 431 can cut gradually around the plastic plate 5 of these 51 peripheries of boring a hole, more strengthen with the aperture that makes this perforation 51, thereby this body of rod 42 is not contacted with this plastic plate 5, and then avoid plastic plate 5 to be subjected to expanding with heat and contract with cold effect and influence and produce be full of cracks.

Still continuous aforementioned, because the cutting blade 431 that this perforation 51 sees through this protruding wing 43 progressively cuts plastic plate 5, therefore these perforation 51 peripheries are regular shape, make the plastic plate 5 of these 51 peripheries of boring a hole can not produce the prying aspect, thereby make this pad 44 can closely be attached on the plastic plate 5 and seal this perforation 51, guarantee the waterproofing effect of this pad 44.

Moreover, when sheathed pad 44 uses, because of the circumferential surface 424 of this protruding wing 43 by this first section 421 radially stretches out, and this protruding wing 43 radially extended length dwindles gradually towards these second section, 422 directions, therefore this pad 44 can not conflict mutually with protruding wing 43, being beneficial to this pad 44 is sheathed on the body of rod 42 easily, assembling easily, though the cutting blade 431 of this protruding wing 43 can cut plastic plate 5 simultaneously, but because of this cutting blade 431 can be too not sharp-pointed, several screws 4 even user arbitrarily takes also are difficult for being stabbed by this cutting blade 431, to ensure user's safety in utilization.

Conclude aforementioned, the screw of the protruding wing of the utility model tool is formed with the design of cutting blade by this protruding wing periphery, so in sealed process, utilize cutting blade can easily plastic plate be cut out the perforation of a rule, except that not contacted with this body of rod, this plastic board also do not produce prying, outside the waterproofing effect of guaranteeing this pad, this cutting blade also is unlikely too sharp-pointed and stabs the user simultaneously, adding the length system that this protruding wing radially extends dwindles gradually towards this second section direction, it helps pad and is sheathed on the body of rod, so can reach the purpose of this utility model really.

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 to the scope that the utility model patent contains.

Claims

1, the screw of the protruding wing of a kind of tool, it comprises a spiral shell head, a body of rod and two protruding wings; The described body of rod is fixedly arranged on Luo Toushang, and it has first section of contiguous this spiral shell head and second section of opposite first section, is equipped with most spiral helicine threads simultaneously on this second section periphery; Described two protruding wings are divided into first section of the body of rod; It is characterized in that: described protruding wing periphery is extended with a cutting blade.

2, according to the screw of the protruding wing of the described tool of claim 1, it is characterized in that: this protruding wing is radially stretched out by the first section circumferential surface of the body of rod, and this protruding wing length of radially extending is towards the second section direction convergent of the body of rod.

3, according to the screw of the protruding wing of the described tool of claim 1, it is characterized in that: this screw more includes one and is set in the first section outer periphery separably, and the pad between this spiral shell head and protruding wing.