CN221525922U - Quick water stopper for hot melt pipe - Google Patents

Abstract

The utility model relates to a quick water stopper of a hot melt pipe, which relates to the technical field of building water heating installation and comprises a fastening nut, an expansion sleeve, a lower stop block, pawls and a mandrel, wherein the lower part of the fastening nut is provided with the expansion sleeve, the stop block at the lower part of the expansion sleeve is distributed with four pawls, the four pawls positioned by the lower stop block are telescopic, when carrying out the hot melt of taking water and melting the operation, use and stop behind the pipe wall inboard of water ware pawl chucking, the expansion shell that obtains the rubber material through fastening nut's fastening receives extrusion deformation and plays the stagnant water effect, accomplishes the hot melt of pipe wall, and the device can realize the hot melt of taking water operation of pvc hot melt pipe butt fusion.

Description

Quick water stopper for hot melt pipe

Technical Field

The utility model relates to the technical field of building water heating installation, in particular to a hot melt pipe rapid water stopper.

Background

In building water heating installation and water heating maintenance construction, at present, a hot melt welding mode is often adopted for the installation of pvc pipes, the outside diameter of the pipes with certain specification and the inside diameter of corresponding joints are spliced into a whole through hot melt, the purpose of sealing connection can be achieved after the joints are cooled, and the convenience is commonly adopted by water heating installation building construction at present.

In the PVC pipe hot melting installation process, water pipe water carrying operation is frequently encountered, when the hot melting gun heats the outer diameter of the pipe and the inner diameter of the joint, the PVC pipe cannot be heated due to the water cooling problem, and the problem that construction cannot be performed is caused.

Disclosure of utility model

Based on the technical problem of water-carrying construction of PVC hot-melt pipes in the background technology, the utility model aims to provide a quick water stopper device for a hot-melt pipe, when water exists in a pipeline when the PVC pipe is heated, the water stopper can be inserted into the inside of a PVC pipe diameter, and an annular rubber sleeve is tightly pressed by a fastening bolt, so that the rubber sleeve is radially expanded and tightly expanded in the pipe, the purpose of stopping water is achieved, and the subsequent hot-melt construction is facilitated.

In order to solve the technical problems, the utility model provides a hot melt pipe rapid water stopper, which is characterized by comprising the following components: the device comprises a fastening nut 1, an expansion sleeve 2, a lower stop block 3, a pawl 4, a mandrel 5 and a shaft pin 6.

For a quick water stopper of hot melt pipe, fastening nut 1 installs in dabber 5 upper portion external screw thread with the internal screw thread, fastening nut 1 lower part is equipped with inflation cover 2, the lower stop 3 of inflation cover 2 lower part location, lower stop 3 up end and inflation cover 2 terminal surface contact, lower stop 3 lower extreme and dabber 5 contact, lower stop 3 distributes four pawls 4 in radial circumferencial direction, pawl 4 passes through round pin axle 6 and assembles in the annular at lower stop 3 middle part, pivot 6 passes the annular of lower stop 3 and is located on dabber 5, lower stop 3 is fixed in an organic wholely through round pin axle 6 with dabber 5.

Drawings

FIG. 1 is a schematic view of a rapid water stopper for a hot melt tube according to the present utility model.

FIG. 2 is a cross-sectional view of a rapid water stopper for a hot melt tube according to the present utility model.

In the figure: 1. fastening nut 2, expansion sleeve 3, lower stop 4, pawl 5, dabber 6 and round pin axle.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings.

As shown in figure 1, when the hot-melt pipe quick water stopper is used for water heating installation and maintenance, the water leakage and valve closing of a main pipeline of a pvc pipe are not tight, at the moment, water exists in the pvc pipe, so that a hot-melt gun cannot melt pipes, after the quick water stopper is inserted into the pipe for a certain distance, the hexagonal edge at the top of a fastening nut 1 and a straight-line opening at the top of a mandrel 5 are exposed at the hot-melt head of the pvc pipe, a flat-mouth screwdriver is adopted to rotate the upper part of the mandrel 5 to form a straight-line opening, an open spanner is clamped on the hexagonal at the top of the fastening nut 1, the fastening nut 1 is prevented from rotating, at the moment, the mandrel 5 can extrude an expansion sleeve 2 under the action of a screw pair at the top, and at the same time, four pawls 4 radially positioned in a circular groove in a pin 6 in the middle of a lower stop 3 drive a lower stop 3 to rotate together with the mandrel 5, and the tips of the pawls are telescopically stopped on the inner wall of the pvc pipe and clamped on the inner diameter of the pvc pipe, and the quick water stopper can prevent the quick water stopper from being pushed out of the pipe wall by water pressure.

As shown in fig. 2, after the water stopper pawl 4 is clamped inside the pipe wall, the fastening nut 1 is fastened to rotate, and the fastening nut 1 rotates to pass through the side effect of the screw thread on the upper part of the mandrel 5, so that the expansion sleeve 2 made of rubber material is extruded and deformed, the radial size of the expansion sleeve 2 is enlarged, and the water stopping effect of the PVC inner pipe wall is achieved.

As shown in fig. 1, after the fusion pipe is fused, the fastening nut 1 is loosened, the expansion sleeve is deformed and disappears, the initial state is restored, then the four pawls 4 are loosened by rotating the upper part of the mandrel 5, the water stopper is pulled out, and the fusion of pvc pipe is completed.

It should be understood that the above-described embodiments of the present utility model are merely illustrative or explanatory of the principles of the utility model and are not restrictive of the utility model, and any modifications, equivalent substitutions, improvements, etc. made thereto, without departing from the spirit and scope of the utility model, are intended to be included within the scope of the utility model, and furthermore, the appended claims are intended to cover all such changes and modifications as fall within the scope and metes of the claims, or equivalents of such scope and metes.

Claims (1)

1. A hot melt tube rapid water stopper, comprising: fastening nut (1), expansion sleeve (2), lower dog (3), pawl (4), dabber (5) and round pin axle (6), fastening nut (1) is installed in dabber (5) upper portion, and dabber (5) upper portion is a word screwdriver mouth, and fastening nut (1) lower part is equipped with expansion sleeve (2), expansion sleeve (2) lower part location has lower dog (3), and lower dog (3) have four pawls (4) at radial circumferencial direction distribution, and pawl (4) are assembled in the annular at dog (3) middle part down through round pin axle (6).