CN2285844Y

CN2285844Y - Plastic expansion pipe with protrusion rear end

Info

Publication number: CN2285844Y
Application number: CN 96203156
Authority: CN
Inventors: 薛俊生
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-26
Filing date: 1996-01-26
Publication date: 1998-07-08
Anticipated expiration: 2006-01-26

Abstract

The utility model relates to a plastic expansion pipe, the tail end of which is provided with a convex head. The utility model is composed of a pipe body, a screw hole, a screw tooth, a barb and an expansion opening. The utility model is mainly characterized in that the tail end of the pipe body is provided with a convex head which is in the shape of a circular cone or a cylinder table. The utility model has simple structure and can accurately fix the position of the expansion pipe to prevent the expansion pipe from entering the hole to influence the construction.

Description

The plastics that tail end the is shaped on plush copper pipe that rises

The utility model relates to the plastics pipe that rises and also is referred to as swell fixture, the plastics that especially a kind of tail end the is shaped on plush copper pipe that rises.

The present employed plastics pipe that rises, its tail end and anterior external diameter basically identical, when construction since the bad control in depth position of punching then very easily cause plastics rise pipe be pressed against during in thread the inside of beating dark, hole go to make rise manage ineffective; Particularly when the roof perforating because mostly present roof be to be manufactured by four hollow plates, if when the perforating position is in the hollow position of four hollow plates, then rise pipe at all can not or bad use.

The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple in structure, the plastics that the tail end of the pipe position of accurately fixedly rising the is shaped on plush copper pipe that rises.

The purpose of this utility model is achieved in that

Be shaped on the plush copper of truncated cone at the tail end of body.

Also can be made into the plush copper of cylinder table shape at the tail end of body.

Can be in the plush copper that the tail end of body is made in uniform thread form or the profile of tooth made of its outer rim.

Advantage of the present utility model and good effect are:

Become the plush copper of truncated cone or cylinder table shape in the rise tail end overstriking of pipe of plastics, because the external diameter of perforating is identical with the external diameter of the pipe that rises during construction, thereby can not cross when using the utility model and be got in the eyes or can not use because of the hollow position perforating of four hollow plates deeply because of perforating, the plush copper outer rim is made thread form or profile of tooth, can increase aesthetic feeling and save material.

Description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is Fig. 1 plan view;

Fig. 3 is another embodiment's of the utility model a schematic representation;

Fig. 4 is the left view of Fig. 1 and Fig. 3;

Fig. 5 is the schematic representation of thread form for the utility model plush copper outer rim;

Fig. 6 is the schematic representation of profile of tooth for the utility model plush copper outer rim;

Below in conjunction with accompanying drawing the utility model embodiment is further described:

Embodiment 1:

The pipe of being manufactured by engineering plastics that rises is made of body 2, hangnail 3, thread 4, spreading hole 5, be shaped on the plush copper 1 of a truncated cone at the tail end of body, this plush copper begin to make from the place that itself and body extend overstriking as shown in Figure 5 thread form plush copper 8 or profile of tooth plush copper 9 shown in Figure 6, made thread form or castellated shape can be saved material, and are more conducive to make end face to flush the increase aesthetic feeling with metope when construction.

Embodiment 2:

Only be the plush copper 6 of making a cylinder table shape at the tail end of body, as shown in Figure 3, when manufacturing, the height of cylinder table is very little, and to reduce to expose to the height of metope, the cylinder table outer rim also can be made into uniform thread form or profile of tooth.

Other is all with embodiment 1.

Principle of the present utility model is:

After having openning hole, in the pipe patchhole that rises, cylinder table or circular cone will be exposed at outside metope, be unlikely to be got in the hole, screw is inserted in the screw 7, when being screwed into screw, screw stretches into gradually, and open gradually in the spreading hole, thread and hangnail are blocked within the walls, firmly the pipe that rises is fixed within the walls, uses the utility model can not be subjected to the depth and the hollow influence of four hollow plates in hole, can locate exactly.

Claims

1. the tail end plastics that the are shaped on plush copper pipe that rises is made of body, screw, thread, hangnail, spreading hole, and engineering plastics are manufactured, and it is characterized in that: the plush copper that is shaped on truncated cone at the tail end of body.

2. the plastics that tail end according to claim 1 the is shaped on plush copper pipe that rises is characterized in that: the plush copper that also can be made into cylinder table shape at the tail end of body.

3. the plastics that tail end according to claim 1 and 2 the is shaped on plush copper pipe that rises is characterized in that: can be in uniform thread form or the profile of tooth made of its outer rim in the plush copper that the tail end of body is made.