CN201437884U - Lugs for electrofusion fittings - Google Patents

Abstract

The utility model provides a hanging lug for an electric melting pipe fitting, the hanging lugs are multiple, uniformly arranged on both ends of the electric melting pipe fitting body and protruding outward along the radial direction of the electric melting pipe fitting body The hanging ear includes upper and lower parts of the hanging ear; a through groove is provided between the upper and lower parts of the hanging ear at the same end, and through holes for accommodating screws are provided in the upper and lower parts of the hanging ear. The utility model adopts the hanging lug structure, by tightening the screws on the hanging lug, the center of the pipe to be welded and the electrofusion pipe fitting can be basically kept concentric, which greatly reduces the welding stress caused by the inconcentricity of the pipe material and the electrofusion pipe fitting. The accident improves the safety of the electric fusion pipe fittings; in addition, the protruding lugs echo the circular terminals that also protrude outward, making the electric fusion pipe fittings present a dignified and atmospheric beauty.

Description

Lugs for electrofusion fittings

technical field

The utility model relates to a connecting piece of a polyethylene pipeline system, in particular to a hanging lug used for an electric fusion pipe piece.

Background technique

At present, buried pipeline connectors, especially polyethylene electrofusion pipe fittings, are known technologies. The working principle of the electrofusion pipe fitting is: use the heating resistance wire buried in the inner wall of the electrofusion pipe fitting to energize and generate heat, so as to melt the inside of the electrofusion pipe fitting and the outside of the pipe that is in contact with it, and then melt into one body after cooling to achieve the purpose of connection. During welding, if the center of the electrofusion fittings and the pipe cannot be eliminated, the stress generated in this case will cause problems such as molten material eruption or weak welding of the electrofusion fittings during welding, which is serious will cause quality accidents.

Contents of the invention

The purpose of the embodiment of the utility model is to provide a hanging lug for electrofusion pipe fittings in view of the defects of the above-mentioned prior art. The defects of eruption or weak welding can reduce the occurrence of quality accidents.

In order to achieve the above purpose, the technical solution adopted by the embodiment of the present utility model is: a hanging lug for the electrofusion pipe fitting, the hanging lug is a plurality, and is uniformly arranged on both ends of the electrofusion pipe fitting body and along the The radial outward protrusion of the electrofusion pipe fitting body; the hanging lug includes the upper and lower parts of the hanging lug; a through groove is provided between the upper and lower parts of the hanging lug at the same end, and accommodating screws are arranged in the upper and lower parts of the hanging lug through holes.

Preferably, the screws are self-tapping screws.

Preferably, the electrofusion pipe fitting is an electrofusion sleeve, an electrofusion reducer, an electrofusion elbow or an electrofusion tee.

For the sake of beautiful appearance and convenient operation, the plane of the hanging lug on the same end of the electrofusion pipe fitting is perpendicular to the plane of the terminal post in the electrofusion pipe fitting.

The beneficial effect of the embodiment of the utility model is: compared with the prior art, the utility model adopts the hanging lug structure, and by tightening the screws on the hanging lug, the center of the pipe to be welded and the electrofusion fitting can be basically kept concentric, greatly reducing the It eliminates welding accidents caused by stress caused by different pipes and electrofusion pipe fittings, and improves the safety of electrofusion pipe fittings; in addition, the protruding lugs and the same outwardly protruding circular wiring on the vertical surface The columns echo each other, making the pipe fittings present a dignified and atmospheric beauty.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the hanging lug used for electrofusion pipe fittings according to the embodiment of the present invention;

Fig. 2 is the enlarged schematic view of A in Fig. 1;

Fig. 3 is the enlarged schematic view of B in Fig. 1;

FIG. 4 is a top view of FIG. 3 .

In the figure: 1 body of electrofusion pipe fitting, 2 terminal, 3 screw, 4 lug, 4.1 upper part of lug, 4.2 slot, 4.3 through hole, 4.4 lower part of lug.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

As shown in Figure 1-4, a hanging lug 4 for electrofusion pipe fittings described in the embodiment of the present utility model. . Specifically, the electrofusion fittings can be electrofusion sleeves, electrofusion reducers, electrofusion elbows or electrofusion tees, etc., and multiple hanging lugs can be set according to the type of electrofusion fittings during specific implementation. , For example, four hanging lugs are set for the electric fusion sleeve, four hanging lugs are set for the electric fusion reducer, and four or six hanging lugs are set for the electric fusion tee. Considering that the electrofusion pipe fitting is an electrofusion tee pipe fitting with electrofusion at both ends and a socket at one end, four hanging lugs are provided. Considering that the electrofusion pipe fitting is an electrofusion tee pipe fitting and all ends are electrofusion, six hanging lugs are provided.

As shown in FIG. 1 , in this example, the shape of the hanging lug 4 is square, and may also be other shapes such as circle and polygon. As shown in Figure 3-4, the hanging lugs 4 are evenly arranged on both ends of the electrofusion pipe fitting body 1, and the hanging lugs 4 are separated from the electrofusion fitting body 1 by a part of the thin and deep groove, and along the electrofusion fitting body 1 radial outward protrusion. For the sake of beautiful appearance and convenient operation, as shown in Figure 1, the plane of the lug 4 on the same end of the electrofusion pipe fitting is perpendicular to the plane of the terminal post 2 in the electrofusion pipe fitting. Of course, non-perpendicular settings can also be selected.

As shown in Figure 2-3, the hanging ear 4 includes the upper and lower parts 4.1 and 4.4 of the hanging ear. A through groove 4.2 is provided between the upper and lower parts 4.1 and 4.4 of the hanging ear at the same end. The upper and lower parts of the hanging ear 4.1 and 4.4 are provided with through holes 4.3 for accommodating screws 3 . Preferably, the screws 3 are self-tapping screws. When welding, insert the pipes to be welded into the two ends of the electrofusion pipe fitting body 1 and place them in place, then tighten the screw 3 with a screwdriver, connect the welder joint to the terminal 2, and then conduct electric welding.

By tightening the screws on the lugs before welding, the center of the pipe to be welded and the electrofusion pipe fitting can be basically kept concentric, which greatly reduces the welding accidents caused by the stress caused by the misalignment of the pipe and the electrofusion pipe fitting, and improves the efficiency of the electrofusion pipe fitting. safety of use. In addition, the protruding square lugs echo each other with the protruding round terminals on the vertical surface, making the electrofusion pipe fittings present a dignified and atmospheric beauty.

The above-mentioned embodiment is only a kind of preferred embodiment of the utility model, and the usual changes and replacements carried out by those skilled in the art within the scope of the technical solutions of the utility model should be included in the protection scope of the utility model Inside.

Claims (4)

1. A hanging lug for electrofusion pipe fittings, characterized in that: there are multiple hanging lugs, which are evenly arranged on both ends of the electrofusion pipe fitting body and along the radial direction of the electrofusion pipe fitting body The hanging ear includes upper and lower parts of the hanging ear; a through groove is provided between the upper and lower parts of the hanging ear at the same end, and through holes for accommodating screws are provided in the upper and lower parts of the hanging ear. 2. A hanging lug for electrofusion pipe fittings according to claim 1, characterized in that: the screws are self-tapping screws. 3. A hanging lug for electrofusion pipe fittings according to claim 1 or 2, characterized in that: the electrofusion pipe fittings are electrofusion sleeves, electrofusion reducers, electrofusion elbows or electrofusion tees . 4. A hanging lug for electrofusion pipe fittings according to claim 3, characterized in that: the plane of the hanging lug on the same end of the electrofusion pipe fitting is located in the same plane as the terminal in the electrofusion pipe fitting vertical.

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