CN2289893Y

CN2289893Y - Plastic expanding plug

Info

Publication number: CN2289893Y
Application number: CN 97200376
Authority: CN
Inventors: 赵正
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-09
Filing date: 1997-01-09
Publication date: 1998-09-02
Anticipated expiration: 2007-01-09

Abstract

The utility model relates to a plastic expanding plug, which comprises an expanding plug body, an extending wing and an expanding line arranged on the expanding plug body. The shape of the cross section of the expanding plug body positioned on the middle lower part of the expanding line is a polygon. The utility model is the plastic expanding plug with good grasping force and uneasy disconnection.

Description

A kind of plastics plug that rises

The plastics that the utility model the relates to a kind of architectural use plug that rises.

Existing plastics rise the plug the lateral cross section projection be roughly circle, the spreading line is a straight line longitudinally, the wing that stretches out radially is straight rod.The subject matter that it exists is: 1, owing to circular cross section, surperficial smoother is easy to generate rotation.2, to stretch out the wing softer, ineffective with the increasing of screwing force easily for the vertical roller shaped that radially is provided with.More than two problems all make the existing plastics plug grasp that rises bad, cause to come off.

At the problems referred to above, it is good that the purpose of this utility model provides a kind of grasp, the plastics that are difficult for the getting loose plug that rises.

To achieve these goals, the utility model is taked following design: this plastics rise to fill in and comprise the plug body that rises, be arranged on the spreading line on the described plug body that rises and stretch out the wing, it is characterized in that: the polygonal that is shaped as that is positioned at the described plug body cross-section that rises of described spreading line middle and lower part.

For further increasing resistance, the described polygonal that rises by the plug body cross-section can be that longitudinal divisions is crisscross arranged.

The described wing that stretches out can be the sheet of along the circumferential direction rotating.

Described top of rising by the plug body can be provided with flange, perhaps the protrusion wing that downward extension is set and diminishes gradually at described top of rising by the plug body.

The utility model is owing to take above design, it has the following advantages: 1, the utility model is because the cross section of filling in body of taking to rise is made into polygonal design, especially take the staggered mode of longitudinal divisions, make polygonal corner angle be clamped on the contact surface of wall, prevented that effectively cross section is the shortcoming of the circular easy rotation that causes in original technology, thereby reached the purpose of this utility model.2, the utility model is owing to taked to stretch out the sheet that the wing is designed to along the circumferential direction rotate, make and stretch out the stressed of the wing and can along the circumferential direction reach the root that stretches out the wing, thereby improved the anti-twisting property that stretches out the wing significantly, reached the purpose of this utility model.3, the utility model can play location, position-limiting action preferably owing to flange is set or the protrusion wing is set in the plug bodies top that rises, and especially uses in structures such as aluminum alloy frame more convenient.The improvement that the utility model carried out, both simple, practical again, it can be widely used in the various occasions that need plastics to rise and fill in.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

Fig. 1 is the utility model schematic perspective view

Fig. 2 is the utility model structural representation

Fig. 3 is the A-A cross-sectional schematic of Fig. 2

Fig. 4 is the B-B cross-sectional schematic of Fig. 2

Fig. 5 is another embodiment of the present utility model

As shown in Figure 1 and Figure 2, the plug body 1 that rises is provided with spreading line 2 and stretches out the wing 3.In original technology, plug body 1 cross section that rises of the middle and lower part of spreading line 2 is approximately circular, and has recessed one by one rib on the cylndrical surface.The utility model is that the cross section 4 with the plug body 1 that rises of spreading line 2 middle and lower parts is designed to polygonal (as shown in Figure 3), and subsection interleaving setting longitudinally.The direction of the cross section 4 of the preceding paragraph is compared with the cross section 4 ' direction of next section in the present embodiment, differs 180 °, can make the plug body 1 that rises have more protrusion corner angle like this, more effectively increases surface friction drag.Based on these dominant ideas, the polygonal of cross section can be various, and such as pentagon, Hexagon, Heptagon or other irregular polygonal, cross section 4 can be that the longitudinal divisions rotation is crisscross arranged, and also can be the setting of same direction.

As Fig. 2, shown in Figure 4, plug the stretching out the wing 3 and can be made into the sheet of rotation along the circumferential direction on the body 1 of rising, like this when the head that stretches out the wing 3 is stressed, not only power can be reached the root that stretches out the wing 3 rapidly, changed the stress of stretching out the wing in the prior art effectively, and make and stretch out the wing 3 also as a supporting element, effectively having stoped the rotation of plug body 1 of rising with the screw that is screwed into.

As shown in Figure 2, at the top of the plug body 1 that rises flange 6 is set, thereby forms a locating face, this set especially uses in structures such as aluminum alloy frame more convenient.As shown in Figure 5, at plug body 1 top of rising the downward extension and the protrusion wing 7 from large to small can also be set, spacing, position, top effect that this protrusions wing 7 also has also has stretching to rise simultaneously and fills in the effect in gap between body 1 top and the metope.

Some can independently exist between each embodiment of the utility model, and some can be worked in coordination or exchange.These differences and change all should not got rid of outside the scope of the utility model patent protection.

Claims

1, a kind of plastics plug that rises, it comprises the plug body that rises, and is arranged on the spreading line on the described plug body that rises and stretches out the wing, it is characterized in that: the polygonal that is shaped as that is positioned at the described plug body cross-section that rises of described spreading line middle and lower part.

2, a kind of plastics as claimed in claim 1 plug that rises is characterized in that: the described polygonal that rises by the plug body cross-section is that longitudinal divisions is crisscross arranged.

3, a kind of plastics as claimed in claim 1 or 2 plug that rises, it is characterized in that: the described wing that stretches out is the sheet of along the circumferential direction rotating.

4, a kind of plastics as claimed in claim 1 or 2 plug that rises is characterized in that: the top flange of the described plug body that rises.

5, a kind of plastics as claimed in claim 3 plug that rises is characterized in that: the top flange of the described plug body that rises.

6, a kind of plastics as claimed in claim 1 or 2 plug that rises is characterized in that: the protrusion wing that described top of rising by the plug body has downward extension and diminishes gradually.

7, a kind of plastics as claimed in claim 3 plug that rises is characterized in that: the protrusion wing that described top of rising by the plug body has downward extension and diminishes gradually.