CN201106729Y

CN201106729Y - Pipe fitting with end cap

Info

Publication number: CN201106729Y
Application number: CNU2007201783324U
Authority: CN
Inventors: 王绍法
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-09
Filing date: 2007-10-09
Publication date: 2008-08-27
Anticipated expiration: 2017-10-09

Abstract

The utility model discloses a pipe fitting which is provided with an end cover. The pipe fitting is designed aiming at leading the end cover to be connected or exited conveniently opposite to the pipe fitting and to be locked firmly with looseness prevention after connection. The pipe fitting comprises the pipe fitting and the end cover, wherein, three to eight sections of pipe convex blocks are evenly distributed on the column face of the end part of the pipe fitting, three to eight sections of local grooves are formed at the shoulder end surfaces of the pipe convex blocks and the pipe fitting and one elastic strip is arranged on the inner wall of each section of the pipe convex block; three to eight sections of cover convex blocks are arranged in an end cover inner hole at the end part of the end cover, and one groove is arranged on the inner wall of each section of cover convex block. The pipe fitting can be widely applied to the industrial or civil buildings and the connection among the pipelines that have hot melting performance, such as cold and hot water feeding pipelines, purified water pipelines and solar energy pipelines and so on.

Description

The pipe fitting of band edge lid

Technical field

The utility model relates to a kind of tube connection piece, the link of the cold and hot water-feeding pipes of particularly a kind of house ornamentation.

Background technique

National regulation is forbidden Coating Steel Pipe is used as cold and hot water-feeding pipes, new type plastic pipe with hot molten characteristic, become the main cold and hot feedwater material that substitutes Coating Steel Pipe, for example: alkene pipe (PP-R pipe), heat-resisting polyethylene tube (PE-RT pipe) in Polybutylene Pipe (PB pipe), three type random copolymerizations are poly-, and be composite pipe of main body and metal or the like by them.These tubing and the pipe fitting of same material separately, it is reliable to connect easy sealing again through hot melt, but it is because littler than tube outer diameter by the aperture of hot melt pipe fitting, therefore after hot melt connects, at the connection part thing that just leaks, outside being exposed to as " tumor ", very ugly, especially to the cold and hot feedwater piping of house ornamentation, the influence connection is attractive in appearance especially.

Carry out having the pipe fitting of band edge lid in recent years on the market, the pipe fitting of existing band edge lid mainly contains two big classes.One class is the groove that the pipe fitting end cylindrical is provided with a circle, is provided with a circle convex tendon in the hole of relevant position, end cap end, and end cap is directly pushed in the pipe fitting.This structure, it is easy that end cap is pushed pipe fitting, but take out inconvenient from pipe fitting, yet when practical application, end cap and pipe fitting will close earlier and supply with the user, when hot melt, again end cap is taken out from pipe fitting, therefore this structure brings very big inconvenience for the piping erection personnel.Another kind of is that the end cap end face is provided with several sections projections, screw in the corresponding groove of pipe fitting end, and frictionally and become pairing and connect, this structure makes end cap pitch from pipe fitting in processes such as stacking, transportation easily.

The model utility content

For overcoming above-mentioned defective, the utility model purpose is to provide the relative pipe fitting of a kind of end cap both can conveniently to connect or withdraw from, the pipe fitting of the band edge lid that can firmly only uncage fixed again after the connection.

For achieving the above object, the pipe fitting of the utility model band edge lid comprises pipe fitting and end cap, on the described pipe fitting end cylndrical surface, be provided with uniform 3-8 section pipe projection, this pipe projection and pipe fitting shoulder end face form the local groove of 3-8 section, on each section pipe projection inwall, be provided with a spring; Described end cap end end cap endoporus is provided with 3-8 section lid projection, is provided with a groove on each section lid projection inwall.

Adopt said structure, when during installation the lid projection on the end cap being passed every adjacent pipe projection gap on the pipe fitting and screwing in the groove on the pipe fitting, rely on the effect of rising of the bullet of each spring on the pipe fitting pipe projection inwall, fall into respectively on the end cap lid projection inwall in corresponding each groove and fixing connecting of end cap and pipe fitting, compared with prior art, have and be connected between end cap and the pipe fitting or withdraw from efficient and conveniently, connect the back firm fixation, and the generous characteristics of beautiful shape.

Description of drawings

Fig. 1 is the plan view of pipe fitting, and upper right position is a partial sectional view among the figure.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the sectional view of Fig. 1 at the A-A place.

Fig. 4 is the sectional view of Fig. 1 at the B-B place.

Fig. 5 is the plan view of end cap, and first position is a partial sectional view among the figure.

Fig. 6 is the right elevation of Fig. 5, half sectional view.

Fig. 7 is embodiment's schematic representation of the present utility model, and right half part is the half section schematic representation of assembly process among the figure; Left-half is finished schematic representation for assembling among the figure.

Embodiment

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

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, on the pipe fitting cylndrical surface, pipe fitting 1 end 14, be provided with uniform 3-8 section pipe projection 11, form every section local groove 12 of 3-8 section by pipe projection 11 and pipe fitting shoulder end face 17, on every section pipe projection inwall 13, respectively be provided with a spring 16, also be provided with confined planes 18 in the terminal (bottom) of every section groove 12;

As Fig. 5, shown in Figure 6, end cap 2 end end cap endoporus 21 are provided with and pipe fitting 1 corresponding 3-8 section lid projection 24, are provided with a groove 23 on every section lid projection inwall 20.The width of the width of lid projection 24 and the groove 12 of above-mentioned pipe fitting 1 is suitable, the pop-off of the spring 16 of retaining groove 23 and above-mentioned pipe fitting 1 has the latch engagement relation, and end cap endoporus 21, lid bump aperture face 22 and groove 23 are corresponding adaptive with pipe fitting cylndrical surface 14, pipe projection cylndrical surface 15 (shown in Figure 3) and the spring 16 of above-mentioned pipe fitting 1 respectively.

Fig. 7 is an assembling schematic representation of the present utility model, when PB tubing, PP-R tubing, after tubing 3 such as PE-RT tubing and pipe fitting 1 hot melt, just have the connection part that the thing d that leaks like " tumor " is exposed at tubing 3 and pipe fitting 1, at this moment push the end cap 2 that is enclosed within advance before the hot melt on the tubing 3 to pipe fitting 1, lid projection 24 passes pipe fitting 1, gap between every adjacent tubes projection 11, make the end face of end cap 2 touch the shoulder end face 17 of pipe fitting 1, then end cap 2 relative pipe fittings 1 are turned clockwise, lid projection 24 on the end cap 2 is screwed in the groove 12 of pipe fitting 1, and spring bullet on the pipe fitting 1 is fallen in the groove 23 on the end cap 2, at this moment, owing to pipe fitting 1 is provided with the fixedly position of end cap 2 relative pipe fittings 1 of confined planes 18.

Above-mentioned the utility model embodiment only lists " straight-through pipe fitting "; the schematic representation of two end constructions; the band silk is straight-through in addition in the practical application, (end is the utility model structure; the other end is threaded) the various pipe fittings of pipe cap, elbow, the threeway of band silk, stop valve, ball valve (two ends), threeway (three ends) or the like; but the structure of each end is the utility model structure roughly the same all, all belongs to the protection domain of the utility model claim.

The pipe fitting of the utility model band edge lid is used for industry or civil building, has the connection in the pipelines such as cold and hot delivery (pipe) line, purified water pipeline, solar energy pipeline of hot molten characteristic.Especially open piping connects, and the relative pipe fitting of end cap is screwed into or withdraws from conveniently, and snap close is stable, and pipe fitting is elegant in appearance, and end cap has been arranged simultaneously, disperses pipe fitting to concentrate at the stress of tubing joint, makes connection more reliable.

Claims

1, a kind of pipe fitting of band edge lid comprises pipe fitting and end cap, it is characterized in that: on the described pipe fitting end cylndrical surface, be provided with uniform 3-8 section pipe projection, this pipe projection and pipe fitting shoulder end face form the local groove of 3-8 section, on each section pipe projection inwall, are provided with a spring; Described end cap end end cap endoporus is provided with 3-8 section lid projection, is provided with a groove on each section lid projection inwall.

2, according to the pipe fitting of the described band edge lid of claim 1, it is characterized in that: the terminal of described each section groove also is provided with confined planes.

3, according to the pipe fitting of claim 1 or 2 described band edge lids, it is characterized in that: the width of the width of described lid projection and pipe fitting groove is suitable.

4, according to the pipe fitting of claim 1 or 2 described band edge lids, it is characterized in that: the mutual latch engagement of pop-off of described groove and pipe fitting spring.

5, according to the pipe fitting of claim 1 or 2 described band edge lids, it is characterized in that: described end cap endoporus, lid bump aperture face and groove are corresponding adaptive mutually with pipe fitting cylndrical surface, pipe projection cylndrical surface and the spring of described pipe fitting respectively.