CN2842146Y

CN2842146Y - Plug in the pipeline

Info

Publication number: CN2842146Y
Application number: CN 200520088165
Authority: CN
Inventors: 孔莎; 孔庆春; 孔凡金
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-20
Filing date: 2005-10-20
Publication date: 2006-11-29
Anticipated expiration: 2015-10-20

Abstract

The utility model is a plug in the pipeline, is used for the opening of blocking pipe, in particular for the upper and lower conduit of plastic material.Its component parts comprises end socket, screw, seal ring, fastening plug; End socket is the cylindric of bottom open upper end band capping, and the middle part of capping has and the corresponding circular hole of screw rod external diameter; Screw comprises screw rod and the multi-arris body screw terminal that is connected as a single entity, and the screw rod passes the circular hole at capping middle part, and silk connects the silk hole of the fastening plug that is positioned at end socket cylinder below outside its lower end; There is boss fastening plug lower end, and for going up little circular cone shape down greatly, the upper table surface diameter of circular cone has the corresponding silk of the outer silk hole with the screw rod less than the internal diameter of end socket cylinder to boss in the central with top; The top of boss is equipped with seal ring.The utlity model has use simple, installation efficiency is high, and pipeline opening such as is not damaged at characteristics.

Description

Plug in the pipeline

Technical field

The utility model relates to pipe piece, more specifically is plug in the pipeline, is used for the opening of blocking pipe.

Background technique

In piping erection, a lot of situations are arranged, the pipeline head shutoff forever of opening or interim shutoff, existing method for blocking is: earlier with pipeline headgear silk, adopt the internal thread plug, or the capping of outer silk, adopt the cork head not having also to have under the situation of pressure.The problem that exists is an inefficiency, especially when shutoff plastic tube trace header, also often the pipeline head is caused certain infringement.

Summary of the invention

The purpose of this utility model is the defective that overcomes existing pipeline opening closeouts, provides a kind of installation simple, pipeline opening is not had the interior plug that destroys.

The utility model is achieved in that plug in the pipeline, and its component parts comprises end socket, screw, seal ring, fastening plug; End socket is the cylindric of bottom open upper end band capping, and the external diameter of capping is more than or equal to the external diameter of want blocking pipe, and the external diameter of end socket bottom cylinder is less than the internal diameter of want blocking pipe, and the middle part of capping has and the corresponding circular hole of screw rod external diameter; Screw comprises screw rod and the multi-arris body screw terminal that is connected as a single entity, and the screw rod passes the circular hole at capping middle part, and silk is meshed with the silk hole of the fastening plug that is positioned at end socket cylinder below outside its lower end; There is boss fastening plug lower end, and for going up little circular cone shape down greatly, the upper table surface diameter of circular cone has the corresponding silk of the outer silk hole with the screw rod less than the internal diameter of end socket cylinder to boss in the central with top; The top of boss is equipped with seal ring, and boss and seal ring external diameter are slightly less than the internal diameter of the blocking pipe of wanting.

Lower end edge for ease of end socket cylinder when the fastening plug of screw radially opens, and can have a plurality of breach on the cylindrical wall of end socket lower end vertically.

On the principle, the end socket outside diameter of cylinder equates the most desirable just with the internal diameter of want blocking pipe, but actual being difficult to reaches.So, the corrugated projection in outer silk or ring week is set on the above-mentioned cylinder outer wall, so that adapt to cooperating of internal diameter of the pipeline and end socket outside diameter of cylinder, be convenient to fitting operation.

For plug in the pipeline that prevents to install is arbitrarily dismantled, can circle or the polygonal groove of diameter greater than the screw terminal external diameter be set at the capping middle part, the central authorities of groove have and the corresponding circular hole of screw rod external diameter, like this when installation or removal plug spare, can use the special spanner instrument, as adopting allen wrench.

During use, successively end socket, seal ring, fastening plug are stringed together with screw earlier, but fastening screw not, then the fastening plug of these assemblies is filled in the pipeline opening of the shutoff of wanting inwardly, when fastening screw, under the inclined-plane of the fastening plug of taper pressure, can make seal ring and the outside distending of end socket cylindrical wall, generation is to the radial pressure of inner-walls of duct, also makes to produce enough frictional force vertically between the end socket and tube wall in pipeline, reaches plugging action.In needs remove, during block head, do not lay down, knock the screw square toes inwards gently with hammer then, make fastening plug be withdrawn into the installation original state, just can at an easy rate a whole set of interior block head spare be withdrawed from pipeline opening as long as pine is unloaded screw.

Owing to when adopting in the design's pipeline plug blocking pipe mouth, do not need pipeline opening is processed, so shutoff efficient can improve greatly, and can not cause damage to pipeline opening, be applicable to the hard pipeline, be particularly useful for PPR, PP engineering plastics pipe.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model embodiment erection drawing longitudinal section.

Fig. 2 is the utility model plan view.

Fig. 3 cuts open figure for A-A section among Fig. 1.

Among the figure, 1. pipeline, 2. seal ring, 3. fastening plug, 4. end socket, 5. screw, 6. fastening screw head, 7. outer silk, a 8. hole, 9. groove, the 10. outer silk of end socket cylinder, 11. breach.

Embodiment

Fig. 1, Fig. 2, shown in Figure 3: the plug component parts comprises end socket (4), screw (5), seal ring (2), fastening plug (3) in the pipeline; End socket (4) is the cylindric shape moulding of bottom open upper end band capping, the external diameter of capping is more than or equal to the external diameter of want blocking pipe (1), the external diameter of end socket (4) bottom cylinder is less than the internal diameter of want blocking pipe (1), and outer silk (10) is arranged on the end socket cylinder outer wall, the bottom has several symmetrical breach (11), and the middle part of capping has and the corresponding circular hole of screw rod external diameter; Screw (5) comprises screw rod and the standard six rib screw terminals (6) that are connected as a single entity, and material is an aluminum casting, and the screw rod passes the circular hole at capping middle part, and silk (7) connects the silk hole (8) of the fastening plug (3) that is positioned at end socket (4) cylinder below outside its lower end; There is boss fastening plug (3) lower end, boss is the big down little circular cone shape of with top, the upper table surface diameter of circular cone is inlaid with metal nuts in the central less than the internal diameter of end socket (4) cylinder, and the silk hole (8) of nut is corresponding with the outer silk (7) of screw rod; The top of boss is equipped with seal ring (2), boss and seal ring (2) external diameter be slightly less than the internal diameter of the blocking pipe of wanting (1).On the cylinder of end socket (4) lower end, have a plurality of breach (11) vertically.Seal ring (2) is a rubber seal.

Claims

1. plug in the pipeline is characterized in that its component parts comprises end socket, screw, seal ring, fastening plug; End socket is the cylindric of bottom open upper end band capping, and the external diameter of capping is more than or equal to the external diameter of want blocking pipe, and the external diameter of end socket bottom cylinder is less than the internal diameter of want blocking pipe, and the middle part of capping has and the corresponding circular hole of screw rod external diameter; Screw comprises screw rod and the multi-arris body screw terminal that is connected as a single entity, and the screw rod passes the circular hole at capping middle part, and silk is meshed with the silk hole of the fastening plug that is positioned at end socket cylinder below outside its lower end; There is boss fastening plug lower end, and for going up little circular cone shape down greatly, the upper table surface diameter of circular cone has the corresponding silk of the outer silk hole with the screw rod less than the internal diameter of end socket cylinder to boss in the central with top; The top of boss is equipped with seal ring, and boss and seal ring external diameter are slightly less than the internal diameter of the blocking pipe of wanting.

2. plug in the pipeline as claimed in claim 1 is characterized in that having a plurality of breach vertically on the cylindrical wall of end socket lower end, and the corrugated projection in outer silk or ring week is arranged on this cylinder outer wall.

3. plug in the pipeline as claimed in claim 1 or 2 is characterized in that there is circle or the polygonal groove of diameter greater than the screw terminal external diameter at the capping middle part, and the central authorities of groove have and the corresponding circular hole of screw rod external diameter.

4. plug in the pipeline as claimed in claim 1 or 2 is characterized in that end socket, fastening plug are moulding, and is inlaid with the metal nut on the fastening plug that screw is a metalwork, and seal ring is a rubber parts.